Board of Regents, The University of Texas System (USA)
Inventor
Haas, Derek
Robison, Jordan
Biegalski, Steven
Head, Timothy
Towell, Rusty
Clarno, Kevin
Petrovic, Bojan
Tsvetkov, Pavel
Scherr, Jonathan
Kimber, Mark
Abstract
An integral molten salt nuclear reactor includes a drain tank section configured to hold a volume of fuel salt. The integral molten salt nuclear reactor further includes a reactor section configured to receive the volume of fuel salt from the drain tank and cause fission reactions that heats the molten salt. The integral molten salt nuclear reactor further includes a heat exchange section configured to receive a flow of the heated fuel salt from the reactor section and remove heat therefrom.
G21C 1/32 - Integral reactors, i.e. reactors wherein parts functionally associated with the reactor but not essential to the reaction, e.g. heat exchangers, are disposed inside the enclosure with the core
G21C 3/54 - Fused salt, oxide, or hydroxide compositions
G21C 7/30 - Control of nuclear reaction by displacement of reactor fuel or fuel elements
2.
FISSION PRODUCT EXTRACTION SYSTEM AND METHODS OF USE THEREOF
A molten salt reactor system may produce fission products, such as molybdenum-99, which may be extracted by an extraction system. The extraction system may be configured to sparge the molten fuel salt with an inert gas to dislodge gaseous fission products from the molten fuel salt, so that the gaseous fission products flow through an off-gas outlet into a gas transfer assembly. The example extraction system may also include introducing a gaseous halogenating agent to prevent the fission products from depositing on a pipe surface of the gas transfer assembly. The gaseous fission products may flow from the gas transfer assembly to a carboy containing an aqueous solution, to process and/or filter the fission products. The resulting solution containing processed fission products in the carboy may be further distilled into final, usable products.
G21C 19/307 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products specially adapted for liquids
G21C 19/30 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products
G21G 1/00 - Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation, or particle bombardment, e.g. producing radioactive isotopes
A salt sampling apparatus includes a containment cell and plunger. The containment cell defines a cell volume, an upper cell mating feature and a lower cell mating feature within the cell volume, and a through-bore extending completely through the containment cell. The plunger is arrangeable within the cell volume along the through-bore and defines a shaft portion, and an upper plunger mating feature and a lower plunger mating feature. The lower plunger mating feature defines a well about the shaft portion configured to receive a volume of a molten salt material. The plunger is moveable between a first position in which the well is positioned substantially out of the cell volume, and a second position in which the well is positioned substantially in the cell volume with the well sealed within the containment volume by the engagement of the containment cell and the plunger.
A salt sampling apparatus includes a containment cell and plunger. The containment cell defines a cell volume, an upper cell mating feature and a lower cell mating feature within the cell volume, and a through-bore extending completely through the containment cell. The plunger is arrangeable within the cell volume along the through-bore and defines a shaft portion, and an upper plunger mating feature and a lower plunger mating feature. The lower plunger mating feature defines a well about the shaft portion configured to receive a volume of a molten salt material. The plunger is moveable between a first position in which the well is positioned substantially out of the cell volume, and a second position in which the well is positioned substantially in the cell volume with the well sealed within the containment volume by the engagement of the containment cell and the plunger.
Disclosed is a reactor thermal management system. A molten salt reactor vessel and a second component (e.g., a drain tank) fluidly coupled with the molten salt reactor vessel are configured to receive a flow of a molten salt therewith. The reactor thermal management system includes an internal shield or vessel encompassing the molten salt reactor vessel and the second component, the internal shield or vessel defining a first thermally insulative region therein. The internal shield or vessel is configured to maintain the first thermally insulated region above a melting temperature of the molten salt during operation of the molten salt reactor vessel.
Board of Regents, The University of Texas System (USA)
Inventor
Haas, Derek
Robison, Jordan
Biegalski, Steven
Head, Timothy
Towell, Rusty
Clarno, Kevin
Petrovic, Bojan
Tsvetkov, Pavel
Scherr, Jonathan
Kimber, Mark
Abstract
An integral molten salt nuclear reactor includes a drain tank section configured to hold a volume of fuel salt. The integral molten salt nuclear reactor further includes a reactor section configured to receive the volume of fuel salt from the drain tank and cause fission reactions that heats the molten salt. The integral molten salt nuclear reactor further includes a heat exchange section configured to receive a flow of the heated fuel salt from the reactor section and remove heat therefrom.
G21C 1/32 - Integral reactors, i.e. reactors wherein parts functionally associated with the reactor but not essential to the reaction, e.g. heat exchangers, are disposed inside the enclosure with the core
G21C 3/54 - Fused salt, oxide, or hydroxide compositions
G21C 7/30 - Control of nuclear reaction by displacement of reactor fuel or fuel elements
7.
Nuclear Reactor Loading System and Methods of use Thereof
A loading system for a molten salt reactor system includes a slug loading assembly. The slug loading assembly includes an inert chamber having an entry port therein that is configured to receive a solid slug. The loading system further includes a chute having a pipe run extending from the entry port and elevationally below the slug loading assembly. The loading system further includes a terminal sieve fluidically coupled with the pipe run opposite the entry port and configured to receive the solid slug via the pipe run. The terminal sieve is positionable with a flow of a liquid molten salt for dissolution of the solid slug therein.
Apparatus, systems, and methods for diluting aerosolized high-melting-point solution. A dilution apparatus intakes a flow of aerosolized form of the high-melting-point solution and a flow of inert gas into a continuous multi-chamber volume. The continuous multi-chamber volume comprises an introductory chamber and an expansion chamber that is cross-sectionally larger than the introductory chamber. The dilution apparatus mixes the aerosolized form of the high-melting-point solution with the inert gas in the expansion chamber to dilute the aerosolized form of the high-melting-point solution and channels a portion of the diluted aerosol to a dilution passage.
A loading system for a molten salt reactor system includes a slug loading assembly. The slug loading assembly includes an inert chamber having an entry port therein that is configured to receive a solid slug. The loading system further includes a chute having a pipe run extending from the entry port and elevationally below the slug loading assembly. The loading system further includes a terminal sieve fluidically coupled with the pipe run opposite the entry port and configured to receive the solid slug via the pipe run. The terminal sieve is positionable with a flow of a liquid molten salt for dissolution of the solid slug therein.
Apparatus, systems, and methods for diluting aerosolized high-melting-point solution. A dilution apparatus intakes a flow of aerosolized form of the high-melting-point solution and a flow of inert gas into a continuous multi-chamber volume. The continuous multi-chamber volume comprises an introductory chamber and an expansion chamber that is cross-sectionally larger than the introductory chamber. The dilution apparatus mixes the aerosolized form of the high-melting- point solution with the inert gas in the expansion chamber to dilute the aerosolized form of the high-melting-point solution and channels a portion of the diluted aerosol to a dilution passage.
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
B05B 9/04 - Spraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible containerSpraying apparatus for discharge of liquid or other fluent material without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pump
B65D 83/66 - Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant with contents and propellant separated initially separated and subsequently mixed, e.g. in a dispensing head
B65D 83/141 - Containers for dispensing liquid or semi-liquid contents by internal gaseous pressure, i.e. aerosol containers comprising propellant specially adapted for specific contents or propellants
B05B 17/04 - Apparatus for spraying or atomising liquids or other fluent materials, not covered by any other group of this subclass operating with special methods
B01F 25/312 - Injector mixers in conduits or tubes through which the main component flows with Venturi elementsDetails thereof
The present invention is directed towards methods for isolating molybdenum compounds from a mixture of fission products. The mixture of fission products may be extracted from a molten salt reactor system. Utilizing a phase transfer agent, the molybdenum compounds may be extracted from an aqueous solution into an organic solution, thereby isolating the molybdenum compound from the mixture of fission products. Molybdate may then be isolated from the resulting organic solution and provided to a generator to facilitate transformation into technitum-99m.
An extraction system includes an absorbent framework configured to withstand the harsh environment of a molten salt reactor system and capture fission products found in the molten salt of such systems. The extraction system further includes means for removing the absorbent framework from the flow of molten salt, such that the absorbent framework may be processed to harvest the fission products. The absorbent framework may include a temperature resistant cartridge configured to house an absorbent composition. The present invention contemplates multiple absorbent compositions including metal-organic frameworks with unique structures to provide thermal stability, carbon nanotubes, and absorbent microspheres. The metal-organic frameworks may be synthesized by a variety of techniques to impart particular characteristics advantageous for use in a molten salt reactor system.
G21F 9/12 - Processing by absorptionProcessing by adsorptionProcessing by ion-exchange
G21C 19/307 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products specially adapted for liquids
G21C 19/31 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products specially adapted for liquids for molten metals
G21C 19/50 - Reprocessing of irradiated fuel of irradiated fluid fuel
G21C 3/54 - Fused salt, oxide, or hydroxide compositions
G21C 19/30 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products
An extraction system includes an absorbent framework configured to withstand the harsh environment of a molten salt reactor system and capture fission products found in the molten salt of such systems. The extraction system further includes means for removing the absorbent framework from the flow of molten salt, such that the absorbent framework may be processed to harvest the fission products. The absorbent framework may include a temperature resistant cartridge configured to house an absorbent composition. The present invention contemplates multiple absorbent compositions including metal-organic frameworks with unique structures to provide thermal stability, carbon nanotubes, and absorbent microspheres. The metal-organic frameworks may be synthesized by a variety of techniques to impart particular characteristics advantageous for use in a molten salt reactor system.
G21C 19/31 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products specially adapted for liquids for molten metals
Board of Regents, The University of Texas System (USA)
Inventor
Haas, Derek
Robison, Jordan
Biegalski, Steven
Head, Timothy
Towell, Rusty
Clarno, Kevin
Petrovic, Bojan
Tsvetkov, Pavel
Scherr, Jonathan
Kimber, Mark
Abstract
An integral molten salt nuclear reactor includes a drain tank section configured to hold a volume of fuel salt. The integral molten salt nuclear reactor further includes a reactor section configured to receive the volume of fuel salt from the drain tank and cause fission reactions that heats the molten salt. The integral molten salt nuclear reactor further includes a heat exchange section configured to receive a flow of the heated fuel salt from the reactor section and remove heat therefrom.
G21C 1/32 - Integral reactors, i.e. reactors wherein parts functionally associated with the reactor but not essential to the reaction, e.g. heat exchangers, are disposed inside the enclosure with the core
G21C 7/30 - Control of nuclear reaction by displacement of reactor fuel or fuel elements
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (USA)
Inventor
Haas, Derek
Robison, Jordan
Biegalski, Steven
Head, Timothy
Towell, Rusty
Clarno, Kevin
Petrovic, Bojan
Tsvetkov, Pavel
Scherr, Jonathan
Kimber, Mark
Abstract
An integral molten salt nuclear reactor includes a drain tank section configured to hold a volume of fuel salt. The integral molten salt nuclear reactor further includes a reactor section configured to receive the volume of fuel salt from the drain tank and cause fission reactions that heats the molten salt. The integral molten salt nuclear reactor further includes a heat exchange section configured to receive a flow of the heated fuel salt from the reactor section and remove heat therefrom.
G01C 3/30 - Measuring distances in line of sightOptical rangefinders using a parallactic triangle with fixed angles and a base of variable length at, near, or formed by, the object with provision for reduction of the distance into the horizontal plane with adaptation to the measurement of the height of an object, e.g. tacheometers
G21C 3/54 - Fused salt, oxide, or hydroxide compositions
G21C 7/30 - Control of nuclear reaction by displacement of reactor fuel or fuel elements
G21C 9/00 - Emergency protection arrangements structurally associated with the reactor
G21C 9/02 - Means for effecting very rapid reduction of the reactivity factor under fault conditions, e.g. reactor fuse
16.
Calibration of power monitors in molten salt reactors
Board of Regents, The University of Texas System (USA)
Inventor
Kelly, Ryan
Biegalski, Steven
Brownfield, Ryan
Farrar, Kraig
Gates, Jonathan Tyler
Haas, Derek
Scherr, Jonathan
Shoemate, Jack
Tsvetkov, Pavel
Abstract
A method and system for calibrating nuclear instrumentation of a reactor is disclosed. The system comprises a reactor configured to operate at a low power level and an external heater configured to heat the reactor to its operating temperature and maintain the reactor in a critical state. The reactor maintains its temperature at a steady state by repeating steps of reducing the heater's power and increasing the reactor's power by changing one or more reactivity settings, wherein the reduced heater's power is compensated by using the increased power generated by the reactor itself. The nuclear instrumentation is configured to measure the reactor's output power and compare it with the calculated reactor's power. Based on the discrepancy between the calculated power and the measured power exceeds a threshold; and the nuclear instrumentation is appropriately calibrated by adjusting one or more settings.
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (USA)
Inventor
Kelly, Ryan
Haas, Derek
Scherr, Jonathan
Shoemate, Jack
Tsvetkov, Pavel
Biegalski, Steven
Brownfield, Ryan
Farrar, Kraig
Gates, Tyler
Abstract
A method and system for calibrating nuclear instrumentation of a reactor is disclosed. The system comprises a reactor configured to operate at a low power level and an external heater configured to heat the reactor to its operating temperature and maintain the reactor in a critical state. The reactor maintains its temperature at a steady state by repeating steps of reducing the heater's power and increasing the reactor's power by changing one or more reactivity settings, wherein the reduced heater's power is compensated by using the increased power generated by the reactor itself. The nuclear instrumentation is configured to measure the reactor's output power and compare it with the calculated reactor's power. Based on the discrepancy between the calculated power and the measured power exceeds a threshold; and the nuclear instrumentation is appropriately calibrated by adjusting one or more settings.
The present invention is directed towards methods for isolating molybdenum compounds from a mixture of fission products. The mixture of fission products may be extracted from a molten salt reactor system. Utilizing a phase transfer agent, the molybdenum compounds may be extracted from an aqueous solution into an organic solution, thereby isolating the molybdenum compound from the mixture of fission products. Molybdate may then be isolated from the resulting organic solution and provided to a generator to facilitate transformation into technitum-99m.
G01N 30/00 - Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography
G21C 1/06 - Heterogeneous reactors, i.e. in which fuel and moderator are separated
G21C 1/24 - Homogeneous reactors, i.e. in which fuel and moderator present an effectively homogeneous medium to the neutrons
G21G 1/08 - Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation, or particle bombardment, e.g. producing radioactive isotopes outside of nuclear reactors or particle accelerators by neutron irradiation accompanied by nuclear fission
19.
EXTRACTION OF FISSION PRODUCTS FROM MOLTEN SALT VIA REDOX REACTION WITH REDUCTING AGENTS
The present invention is directed to a fission product extraction system operable to capture and extract fission products from a flow of irradiated fueled molten salt of a molten salt reactor. The example extraction systems described herein utilize electroless deposition to chemically plate fission products onto a metallic structure. The metallic structure may be partially coated with a reducing agent, such as beryllium to provide an electron source for the fission products. The metallic structure may be a component of an extraction system designed to facilitate submersion of the metallic structure into the flow of molten salt. The extraction system may also be designed to facilitate removal of the metallic structure without requiring a shut down or slowdown of the reactor system.
G21C 19/50 - Reprocessing of irradiated fuel of irradiated fluid fuel
C23C 18/16 - Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coatingContact plating by reduction or substitution, i.e. electroless plating
G21C 3/54 - Fused salt, oxide, or hydroxide compositions
G21C 19/307 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products specially adapted for liquids
A coupon sampler for a reactor system includes a lower assembly having an in-line portion configured to receive a flow of a molten salt, and a lower assembly pipe portion extending transverse from the in-line portion and defining a lower channel therethrough. The coupon sampler further includes an upper assembly fluidically coupled with the lower assembly. The upper assembly includes an upper assembly pipe portion defining an upper channel therethrough and cooperating with the lower channel to define a sampling channel of the coupon sampler. The coupon sampler further includes a coupon device disposed fully within the sampling channel. The coupon sampler further includes an actuation mechanism operatively coupled with the coupon device and configured to move the coupon device axially into and out of the flow of the molten salt.
A coupon sampler for a reactor system includes a lower assembly having an in-line portion configured to receive a flow of a molten salt, and a lower assembly pipe portion extending transverse from the in-line portion and defining a lower channel therethrough. The coupon sampler further includes an upper assembly fluidically coupled with the lower assembly. The upper assembly includes an upper assembly pipe portion defining an upper channel therethrough and cooperating with the lower channel to define a sampling channel of the coupon sampler. The coupon sampler further includes a coupon device disposed fully within the sampling channel. The coupon sampler further includes an actuation mechanism operatively coupled with the coupon device and configured to move the coupon device axially into and out of the flow of the molten salt.
G01N 1/20 - Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
G21C 3/18 - Internal spacers or other non-active material within the casing, e.g. compensating for expansion of fuel rods or for compensating excess reactivity
G21C 3/54 - Fused salt, oxide, or hydroxide compositions
G21C 17/017 - Inspection or maintenance of pipe-lines or tubes in nuclear installations
22.
EXTRACTION OF FISSION PRODUCTS FROM MOLTEN SALT VIA REDOX REACTION WITH REDUCTING AGENTS
The present invention is directed to a fission product extraction system operable to capture and extract fission products from a flow of irradiated fueled molten salt of a molten salt reactor. The example extraction systems described herein utilize electroless deposition to chemically plate fission products onto a metallic structure. The metallic structure may be partially coated with a reducing agent, such as beryllium to provide an electron source for the fission products. The metallic structure may be a component of an extraction system designed to facilitate submersion of the metallic structure into the flow of molten salt. The extraction system may also be designed to facilitate removal of the metallic structure without requiring a shut down or slowdown of the reactor system.
G21C 19/20 - Arrangements for introducing objects into the pressure vesselArrangements for handling objects within the pressure vesselArrangements for removing objects from the pressure vessel
G21C 3/54 - Fused salt, oxide, or hydroxide compositions
A molten salt reactor system includes a fluid level control system configured to circulate a molten salt through a molten salt loop including an experimental tank, a sump tank, and a drain tank. The fluid level control system further includes a plurality of level sensors, pressure transducers, and electronic pressure regulators fluidically coupled with the fuel salt system. The fluid level control system is configured to receive cover gas pressures in the headspaces of the tanks and calculate target fluid height setpoints for each of the tanks. The fluid level control system further invokes the electronic pressure regulator to iteratively adjust the cover gas pressures of the tanks to achieve and maintain a target fluid level in the experimental tank.
A molten salt reactor system includes a fluid level control system configured to circulate a molten salt through a molten salt loop including an experimental tank, a sump tank, and a drain tank. The fluid level control system further includes a plurality of level sensors, pressure transducers, and electronic pressure regulators fluidically coupled with the fuel salt system. The fluid level control system is configured to receive cover gas pressures in the headspaces of the tanks and calculate target fluid height setpoints for each of the tanks. The fluid level control system further invokes the electronic pressure regulator to iteratively adjust the cover gas pressures of the tanks to achieve and maintain a target fluid level in the experimental tank.
G21C 1/02 - Fast fission reactors, i.e. reactors not using a moderator
G21C 15/12 - Arrangement or disposition of passages in which heat is transferred to the coolant, e.g. for coolant circulation through the supports of the fuel elements from pressure vesselArrangement or disposition of passages in which heat is transferred to the coolant, e.g. for coolant circulation through the supports of the fuel elements from containment vessel
G21C 9/00 - Emergency protection arrangements structurally associated with the reactor
A molten salt reactor system may produce fission products, such as molybdenum-99, which may be extracted by an extraction system. The extraction system may be configured to sparge the molten fuel salt with an inert gas to dislodge gaseous fission products from the molten fuel salt, so that the gaseous fission products flow through an off-gas outlet into a gas transfer assembly. The example extraction system may also include introducing a gaseous halogenating agent to prevent the fission products from depositing on a pipe surface of the gas transfer assembly. The gaseous fission products may flow from the gas transfer assembly to a carboy containing an aqueous solution, to process and/or filter the fission products. The resulting solution containing processed fission products in the carboy may be further distilled into final, usable products.
G21C 19/30 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products
G21C 19/307 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products specially adapted for liquids
G21G 1/00 - Arrangements for converting chemical elements by electromagnetic radiation, corpuscular radiation, or particle bombardment, e.g. producing radioactive isotopes
26.
FISSION PRODUCT EXTRACTION SYSTEM AND METHODS OF USE THEREOF
A molten salt reactor system may produce fission products, such as molybdenum-99, which may be extracted by an extraction system. The extraction system may be configured to sparge the molten fuel salt with an inert gas to dislodge gaseous fission products from the molten fuel salt, so that the gaseous fission products flow through an off-gas outlet into a gas transfer assembly. The example extraction system may also include introducing a gaseous halogenating agent to prevent the fission products from depositing on a pipe surface of the gas transfer assembly. The gaseous fission products may flow from the gas transfer assembly to a carboy containing an aqueous solution, to process and/or filter the fission products. The resulting solution containing processed fission products in the carboy may be further distilled into final, usable products.
G21C 19/30 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products
In one embodiment, the example thermal expansion support systems decrease the stress within the one or more components and piping segments within a high temperature system caused by thermal expansion. The exemplary thermal expansion support systems may provide a counterbalancing force on the components and piping segments of the high temperature system, which may allow the components and piping segments a free range of motion to counterbalance the stress caused by thermal expansion of the high temperature system. In some embodiments, one example thermal expansion support system may utilize a counterweight system. In another embodiment, an example thermal expansion support system may utilize active system components, such as actuators, hydraulics, electric motors, or other similar devices to provide a counterbalancing force on the one or more components of the high temperature system.
G21C 13/04 - Arrangements for expansion and contraction
F16L 3/16 - Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
28.
SYSTEMS AND METHODS FOR ELECTROCHEMICAL EXTRACTION OF REDUCED FISSION PRODUCTS FROM IRRADIATED MOLTEN SALT COMPOSITIONS
Fission of uranium-235 produces a wide range of fission products. Of particular importance is the production of molybdenum-99 due to its uses in the medical field. Fission products can be extracted from a molten salt reactor through electrochemical deposition by utilizing an electrode submerged in the flow of irradiated molten salt. However, this is likely to disrupt the redox of the irradiated molten fuel leading to harmful corrosion of the reactor. The present invention utilizes three electrode sets to capture fission products from irradiated molten salt of a molten salt reactor, monitor the redox behavior of the irradiated molten salt, and maintaining the balance of uranium ions to avoid harmful corrosion to the reactor's core.
G21C 19/31 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products specially adapted for liquids for molten metals
G21C 3/54 - Fused salt, oxide, or hydroxide compositions
29.
SYSTEMS AND METHODS FOR ELECTROCHEMICAL EXTRACTION OF REDUCED FISSION PRODUCTS FROM IRRADIATED MOLTEN SALT COMPOSITIONS
Fission of uranium-235 produces a wide range of fission products. Of particular importance is the production of molybdenum-99 due to its uses in the medical field. Fission products can be extracted from a molten salt reactor through electrochemical deposition by utilizing an electrode submerged in the flow of irradiated molten salt. However, this is likely to disrupt the redox of the irradiated molten fuel leading to harmful corrosion of the reactor. The present invention utilizes three electrode sets to capture fission products from irradiated molten salt of a molten salt reactor, monitor the redox behavior of the irradiated molten salt, and maintaining the balance of uranium ions to avoid harmful corrosion to the reactor's core.
G21C 19/31 - Arrangements for introducing fluent material into the reactor coreArrangements for removing fluent material from the reactor core with continuous purification of circulating fluent material, e.g. by extraction of fission products specially adapted for liquids for molten metals
G21C 1/03 - Fast fission reactors, i.e. reactors not using a moderator cooled by a coolant not essentially pressurised, e.g. pool-type reactors
G21C 19/50 - Reprocessing of irradiated fuel of irradiated fluid fuel
In one embodiment, an anhydrous hydrogen fluoride generator vessel (also referred to herein as the “AHF generator vessel”) is provided. In several embodiments, an AHF generator vessel may include a container assembly, one or more shelves, and a center pipe assembly. The container assembly may include a lid assembly that may be removably coupled to the wall, and one or more feet. The center pipe assembly may include a base adapter, a center pipe, and a bottom adapter. In one embodiment, sodium bifluoride is loaded onto the one or more shelves which are positioned perpendicular to the center pipe and stacked upon one another. An external heat source may provide the heat to the vessel to thermally degrade the sodium bifluoride into HF and sodium fluoride (NaF). In various embodiments, the HF may be carried by a carrier gas out of the AHF generator vessel via the lid assembly.
Board of Regents, The University of Texas System (USA)
Inventor
Head, Timothy
Haas, Derek
Abstract
A fission product trap for a reactor system, such as for a pipe connection and/or a pump shaft of a pump of the reactor system, includes a porous container. The porous container may be mounted about the pipe connection and/or pump shaft and include an absorbing material contained therein. The absorbing material may be configured to collect fission products emitted from the pipe connection and/or the pump shaft. The fission product trap further includes an assembly encompassing the porous container and that defines a volume about the porous container and the pipe connection and/or the pump shaft.
Apparatus, systems, and methods for identifying and quantifying chemical components in a high-melting-point liquid. One such method includes: receiving, into a nebulizer assembly, a high-melting-point liquid from a molten liquid conduit; aerosolizing, using the nebulizer assembly, at least a portion of the received high-melting-point liquid; delivering, into one or more instruments, the aerosolized high-melting-point liquid from the nebulizer; and chemically analyzing, using the one or more instruments, the aerosolized high-melting-point liquid.
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
G01N 1/20 - Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
33.
FISSION PRODUCT TRAP FOR SALT PIPE AND PUMP SHAFT SEALS AND METHODS OF USE THEREOF
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (USA)
Inventor
Head, Timothy
Haas, Derek
Abstract
A fission product trap for a reactor system, such as for a pipe connection and/or a pump shaft of a pump of the reactor system, includes a porous container. The porous container may be mounted about the pipe connection and/or pump shaft and include an absorbing material contained therein. The absorbing material may be configured to collect fission products emitted from the pipe connection and/or the pump shaft. The fission product trap further includes an assembly encompassing the porous container and that defines a volume about the porous container and the pipe connection and/or the pump shaft.
A device for in-situ corrosion monitoring in a molten salt reactor system includes a mounting structure and a plurality of probes. Each probe of the plurality of probes may have a main portion and a thinned region that together define a sealed chamber with the mounting structure. Each thinned region of the plurality of probes may be configured to corrosively fail, when exposed to a corrosive environment, both: (i) before any main portion of the plurality of probes, and (ii) temporarily in series with the other thinned portions of the plurality of probes. The device may further include a plurality of sensing features corresponding to the plurality of probes, each sensing feature disposed in a respective sealed chamber of the plurality of probes. Each sensing feature may be configured to detect a breach of the respective sealed chamber caused by the corrosive failure of the thinned region.
G01N 27/27 - Association of two or more measuring systems or cells, each measuring a different parameter, where the measurement results may be either used independently, the systems or cells being physically associated, or combined to produce a value for a further parameter
G01N 27/411 - Cells and probes with solid electrolytes for investigating or analysing of liquid metals
35.
In-situ corrosion monitoring device and methods of use thereof
A device for in-situ corrosion monitoring in a molten salt reactor system includes a mounting structure and a plurality of probes. Each probe of the plurality of probes may have a main portion and a thinned region that together define a sealed chamber with the mounting structure. Each thinned region of the plurality of probes may be configured to corrosively fail, when exposed to a corrosive environment, both: (i) before any main portion of the plurality of probes, and (ii) temporarily in series with the other thinned portions of the plurality of probes. The device may further include a plurality of sensing features corresponding to the plurality of probes, each sensing feature disposed in a respective sealed chamber of the plurality of probes. Each sensing feature may be configured to detect a breach of the respective sealed chamber caused by the corrosive failure of the thinned region.
Disclosed is a reactor thermal management system. A molten salt reactor vessel and a second component (e.g., a drain tank) fluidly coupled with the molten salt reactor vessel are configured to receive a flow of a molten salt therewith. The reactor thermal management system includes an internal shield or vessel encompassing the molten salt reactor vessel and the second component, the internal shield or vessel defining a first thermally insulative region therein. The internal shield or vessel is configured to maintain the first thermally insulated region above a melting temperature of the molten salt during operation of the molten salt reactor vessel.
BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM (USA)
Inventor
Scherr, Jonathan
Head, Timothy
Haas, Derek
Shoemate, Jack
Tsvetkov, Pavel
Towell, Rusty
Abstract
A molten salt reactor system includes a fuel salt system configured to circulate a molten salt through a reactor vessel. The molten salt reactor system further includes an inert gas system fluidically coupled with the fuel salt system and configured to maintain a pressurized volume fluidically between the molten salt and a drain tank by circulating an inert gas along a first inert flow path. The molten salt reactor system further includes an equalization system configured to equalize pressure between all head spaces of the molten salt reactor system including the reactor vessel and the drain tank in response to a shutdown event. The inert gas system is configured to cease maintenance of the pressurized volume in response to the shutdown event.
A pipe connector for use in high temperature environments, such as those characteristics of molten salt reactors. The pipe connector can be used in any industry that uses pipe connectors, and in particular, can be used in a molten salt system including a reactor requiring a connection rated for a maximum of about 725° C. and about 15,000 psi. The pipe connector may comprise a pin, a seal ring, a retainer ring, a box, a locking nut, and a retaining nut.
F16L 19/00 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
F16L 15/00 - Screw-threaded jointsForms of screw-threads for such joints
F16L 19/02 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
F16L 19/025 - Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the pipe ends having integral collars or flanges
F16L 59/18 - Arrangements specially adapted to local requirements at flanges, junctions, valves, or the like adapted for joints
39.
WAVEGUIDES FOR NON-INVASIVE MEASUREMENT OF FLOW IN A HIGH TEMPERATURE PIPE AND APPARATUSES, SYSTEMS, AND METHODS OF USE THEREOF
A method, apparatus, and system according to which first and second transducers are connected to first and second waveguides, respectively, the first and second waveguides are connected to a pipe, and ultrasonic wave signals are exchanged between the first and second transducers, said ultrasonic wave signals passing through the first and second waveguides, the pipe, and a fluid in the pipe. A temperature of the fluid flowing in the pipe may exceed about 600° C. The first and second waveguides insulate the first and second transducers from the pipe and propagate the ultrasonic wave signals between the pipe and the first and second transducers, respectively, so that the ability of the first and second transducers to exchange the ultrasonic wave signals is not adversely affected by the temperature of the fluid in the pipe. The first and second waveguides may be made of a calcium silicate technical ceramic.
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
G21C 17/022 - Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01K 1/143 - SupportsFastening devicesArrangements for mounting thermometers in particular locations for measuring surface temperatures
C04B 28/18 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
G01P 5/24 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
40.
STABILIZING FACE RING JOINT FLANGE AND ASSEMBLY THEREOF
In various embodiments, the stabilizing face ring joint flange and assemblies thereof can be adapted to include a ring joint gasket and resist leaks when a fluid flowing through a pipe at high temperatures and pressures. The stabilizing face ring joint flange assembly with the ring grooves in each flange can be situated in such a way that once full compression is achieved on the ring groove by the gasket, raised faces of the two flanges can meet to ensure that the rotation of the pump or any potential perpendicular loading do not provide a stress on the gasket that would cause the gasket to deform or cause a seal to be lost.
In various embodiments, the stabilizing face ring joint flange and assemblies thereof can be adapted to include a ring joint gasket and resist leaks when a fluid flowing through a pipe at high temperatures and pressures. The stabilizing face ring joint flange assembly with the ring grooves in each flange can be situated in such a way that once full compression is achieved on the ring groove by the gasket, raised faces of the two flanges can meet to ensure that the rotation of the pump or any potential perpendicular loading do not provide a stress on the gasket that would cause the gasket to deform or cause a seal to be lost.
F16L 23/18 - Flanged joints characterised by the sealing means the sealing means being rings
F16L 23/02 - Flanged joints the flanges being connected by members tensioned axially
F16L 23/024 - Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
F16L 23/032 - Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
G21C 1/22 - Heterogeneous reactors, i.e. in which fuel and moderator are separated using liquid or gaseous fuel
G21C 3/54 - Fused salt, oxide, or hydroxide compositions
In one embodiment, an anhydrous hydrogen fluoride generator vessel (also referred to herein as the "AHF generator vessel") is provided. In several embodiments, an AHF generator vessel may include a container assembly, one or more shelves, and a center pipe assembly. The container assembly may include a lid assembly that may be removably coupled to the wall, and one or more feet. The center pipe assembly may include a base adapter, a center pipe, and a bottom adapter. In one embodiment, sodium bifluoride is loaded onto the one or more shelves which are positioned perpendicular to the center pipe and stacked upon one another. An external heat source may provide the heat to the vessel to thermally degrade the sodium bifluoride into HF and sodium fluoride (NaF). In various embodiments, the HF may be carried by a carrier gas out of the AHF generator vessel via the lid assembly.
A pipe connector for use in high temperature environments, such as those characteristics of molten salt reactors. The pipe connector can be used in any industry that uses pipe connectors, and in particular, can be used in a molten salt system including a reactor requiring a connection rated for greater than 700 °C and up to 15,000 psi. The pipe connector 100 may comprise a pin 110, a seal ring 140, a retainer ring 150, a box 160, a locking nut 180, and a retaining nut 190.
F16L 19/00 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
F16L 37/10 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part
44.
IDENTIFYING AND QUANTIFYING COMPONENTS IN A HIGH-MELTING-POINT LIQUID
Apparatus, systems, and methods for identifying and quantifying chemical components in a high-melting-point liquid. One such method includes: receiving, into a nebulizer assembly, a high-melting-point liquid from a molten liquid conduit; aerosolizing, using the nebulizer assembly, at least a portion of the received high-melting-point liquid; delivering, into one or more instruments, the aerosolized high-melting-point liquid from the nebulizer; and chemically analyzing, using the one or more instruments, the aerosolized high-melting-point liquid.
H01J 49/04 - Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locksArrangements for external adjustment of electron- or ion-optical components
B05B 17/04 - Apparatus for spraying or atomising liquids or other fluent materials, not covered by any other group of this subclass operating with special methods
B05B 17/06 - Apparatus for spraying or atomising liquids or other fluent materials, not covered by any other group of this subclass operating with special methods using ultrasonic vibrations
45.
Identifying and quantifying components in a high-melting-point liquid
Apparatus, systems, and methods for identifying and quantifying chemical components in a high-melting-point liquid. One such method includes: receiving, into a nebulizer assembly, a high-melting-point liquid from a molten liquid conduit; aerosolizing, using the nebulizer assembly, at least a portion of the received high-melting-point liquid; delivering, into one or more instruments, the aerosolized high-melting-point liquid from the nebulizer; and chemically analyzing, using the one or more instruments, the aerosolized high-melting-point liquid.
B05B 7/16 - Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating the material to be sprayed
G01N 1/20 - Devices for withdrawing samples in the liquid or fluent state for flowing or falling materials
46.
Waveguides for non-invasive measurement of flow in a high temperature pipe and apparatuses, systems, and methods of use thereof
A method, apparatus, and system according to which first and second waveguides are adapted to be connected to a pipe and first and second transducers are adapted to be connected to the first and second waveguides, respectively, and to exchange ultrasonic wave signals through the first and second waveguides, the pipe, and a fluid flowing in the pipe. A temperature of the fluid flowing in the pipe exceeds 600° C. The first and second waveguides are configured to, and each have a shape to: (i) insulate the first and second transducers from the pipe, and (ii) permit propagation of the ultrasonic wave signals between the pipe and the first and second transducers, respectively, while maintaining an acoustic attenuation through the first and second waveguides at an acceptable level.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01F 1/667 - Arrangements of transducers for ultrasonic flowmetersCircuits for operating ultrasonic flowmeters
G21C 17/022 - Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
G01K 1/143 - SupportsFastening devicesArrangements for mounting thermometers in particular locations for measuring surface temperatures
C04B 28/18 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
G01P 5/24 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
47.
Apparatus, systems, and methods for non-invasive measurement of flow in a high temperature pipe
A method, apparatus, and system according to which first and second transducers are connected to first and second waveguides, respectively, the first and second waveguides are connected to a pipe, and ultrasonic wave signals are exchanged between the first and second transducers, said ultrasonic wave signals passing through the first and second waveguides, the pipe, and a fluid in the pipe. A temperature of the fluid flowing in the pipe may exceed about 600° C. The first and second waveguides insulate the first and second transducers from the pipe and propagate the ultrasonic wave signals between the pipe and the first and second transducers, respectively, so that the ability of the first and second transducers to exchange the ultrasonic wave signals is not adversely affected by the temperature of the fluid in the pipe. The first and second waveguides may be made of a calcium silicate technical ceramic.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
C04B 28/18 - Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing mixtures of the silica-lime type
G21C 17/022 - Devices or arrangements for monitoring coolant or moderator for monitoring liquid coolants or moderators
G01P 5/24 - Measuring speed of fluids, e.g. of air streamMeasuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring the direct influence of the streaming fluid on the properties of a detecting acoustical wave
48.
APPARATUS, SYSTEMS, AND METHODS FOR NON-INVASIVE MEASUREMENT OF FLOW IN A HIGH TEMPERATURE PIPE
A method, apparatus, and system according to which first and second transducers are connected to first and second waveguides, respectively, the first and second waveguides are connected to a pipe, and ultrasonic wave signals are exchanged between the first and second transducers, said ultrasonic wave signals passing through the first and second waveguides, the pipe, and a fluid in the pipe. A temperature of the fluid flowing in the pipe may exceed about 600 C. The first and second waveguides insulate the first and second transducers from the pipe and propagate the ultrasonic wave signals between the pipe and the first and second transducers, respectively, so that the ability of the first and second transducers to exchange the ultrasonic wave signals is not adversely affected by the temperature of the fluid in the pipe. The first and second waveguides may be made of a calcium silicate technical ceramic.
G01F 1/66 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by measuring frequency, phase shift or propagation time of electromagnetic or other waves, e.g. using ultrasonic flowmeters
G01D 5/02 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using mechanical means
G01F 1/72 - Devices for measuring pulsing fluid flows
G01M 3/24 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using infrasonic, sonic, or ultrasonic vibrations
41 - Education, entertainment, sporting and cultural services
Goods & Services
Educational services, namely, providing laboratory-based classes, programs, workshops, courses, and seminars in the field of scientific research and development related to nuclear reactors
41 - Education, entertainment, sporting and cultural services
Goods & Services
Educational services, namely, providing laboratory-based classes, programs, workshops, courses, and seminars in the field of scientific research and development related to nuclear reactors
41 - Education, entertainment, sporting and cultural services
Goods & Services
Athletic apparel, namely, shirts, pants, jackets, footwear, hats and caps, athletic uniforms; Athletic uniforms; Caps; Golf shirts; Short-sleeved or long-sleeved t-shirts; Visors; Warm up outfits Art exhibitions; Educational services, namely, providing courses of instruction at the college level and distribution of course material in connection therewith; Entertainment, namely, live music concerts; Organizing and conducting college sport competitions and athletic events; Presentation of live comedy shows
41 - Education, entertainment, sporting and cultural services
Goods & Services
Athletic apparel, namely, shirts, pants, jackets, footwear, hats and caps, athletic uniforms; Athletic uniforms; Caps; Golf shirts; Short-sleeved or long-sleeved t-shirts; Visors; Warm up outfits Art exhibitions; Educational services, namely, providing courses of instruction at the college level and distribution of course material in connection therewith; Entertainment, namely, live music concerts; Organizing and conducting college sport competitions and athletic events; Presentation of live comedy shows
41 - Education, entertainment, sporting and cultural services
Goods & Services
Athletic apparel, namely, shirts, pants, jackets, footwear, hats and caps, athletic uniforms; Athletic uniforms; Caps; Golf shirts; Short-sleeved or long-sleeved t-shirts; Visors; Warm up outfits Art exhibitions; Educational services, namely, providing courses of instruction at the college level and distribution of course material in connection therewith; Entertainment, namely, live music concerts; Organizing and conducting college sport competitions and athletic events; Presentation of live comedy shows
The invention provides a pipe connector for use in high temperature environments, such as those characteristics of molten salt reactors. The pipe connector can be used in any industry that uses pipe connectors, and in particular, can be used in a molten salt system including a reactor requiring a connection rated for greater than 700 C and up to 15,000 psi. The pipe connector 100 comprises: a cylindrical pin 110 comprising a first portion, a second portion and a transition portion; a ledge; a cylindrical seal ring 140; a retainer ring 150; a cylindrical box 160; a cylindrical locking nut 180; and a cylindrical retaining nut 190.
F16L 19/00 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
F16L 37/10 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members using a rotary external sleeve or ring on one part
A method, apparatus, and system according to which first and second transducers are connected to first and second waveguides, respectively, the first and second waveguides are connected to a pipe, and ultrasonic wave signals are exchanged between the first and second transducers, said ultrasonic wave signals passing through the first and second waveguides, the pipe, and a fluid in the pipe. A temperature of the fluid flowing in the pipe may exceed about 600 C. The first and second waveguides insulate the first and second transducers from the pipe and propagate the ultrasonic wave signals between the pipe and the first and second transducers, respectively, so that the ability of the first and second transducers to exchange the ultrasonic wave signals is not adversely affected by the temperature of the fluid in the pipe. The first and second waveguides may be made of a calcium silicate technical ceramic.
Apparatus, systems, and methods for identifying and quantifying chemical components in a high-melting-point liquid. One such method includes: receiving, into a nebulizer assembly, a high-melting-point liquid from a molten liquid conduit; aerosolizing, using the nebulizer assembly, at least a portion of the received high-melting-point liquid; delivering, into one or more instruments, the aerosolized high-melting-point liquid from the nebulizer; and chemically analyzing, using the one or more instruments, the aerosolized high-melting-point liquid.
B05B 17/06 - Apparatus for spraying or atomising liquids or other fluent materials, not covered by any other group of this subclass operating with special methods using ultrasonic vibrations
H01J 49/04 - Arrangements for introducing or extracting samples to be analysed, e.g. vacuum locksArrangements for external adjustment of electron- or ion-optical components
64.
IN-SITU CORROSION MONITORING DEVICE AND METHODS OF USE THEREOF
G01N 27/27 - Association of two or more measuring systems or cells, each measuring a different parameter, where the measurement results may be either used independently, the systems or cells being physically associated, or combined to produce a value for a further parameter
G01N 27/411 - Cells and probes with solid electrolytes for investigating or analysing of liquid metals