Abstract

According to a first aspect of the present disclosure, there is provided a heat exchanger unit (1200) for a nuclear reactor (1) The heat exchanger unit (1200) features an inner channel for accepting a working fluid flow as a separate flow from a source fluid flow contacting the heat exchanger unit (1200). The heat exchanger unit (1200) also features a connector block (1220) for providing a mechanical and flowing connection to a manifold (1100) of a heat exchanger assembly (1000). The connector block (1220) attaches the heat exchanger unit (1200) to the manifold (1100) through a vertically operated mechanical attachment interface. The connector block (1220) features a port (1222), which is coupled to a counterpart on the manifold (1100) through a single vertical motion for connecting the inner channel to a flowing connection with the manifold (1100).

IPC Classes  ?

• F22B 37/00 - Component parts or details of steam boilers
• G21D 1/00 - Details of nuclear power plant
• F28F 9/00 - CasingsHeader boxesAuxiliary supports for elementsAuxiliary members within casings

Abstract

According to one aspect of the present disclosure, there is provided a manifold (1100) for a heat exchanger assembly (1000) of a nuclear reactor (1) The manifold comprises a peripheral housing (1110), which defines, at least in part, a central volume (1300) for accepting at least one heat exchanger unit (1200) and comprises at least one port (1116, 1118), which communicates with the central volume (1300). A working fluid flow channel (1400) is formed at least in part into the housing (1110). The working fluid flow channel (1400) comprises a collector channel section (1403), which extends along the housing (1110), and at least one inlet channel section (1401), which connects a corresponding at least one port (1116, 1118) to the collector channel section (1403). The manifold also comprises a passage for connecting the collector channel section (1403) to a secondary circuit

IPC Classes  ?

• 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 15/02 - 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

Abstract

According to an example aspect of the present disclosure, there is provided a fuel and control system for a nuclear reactor comprising, a drive assembly, a control rod assembly, and a fuel unit, featuring a frame, which attaches the drive assembly to the fuel unit and provides a space for control movement of the control rod assembly so that the frame, the fuel unit, the drive assembly and the control rod assembly are integrated as one unit, and so that the fuel and control system is configured to be loaded into and unloaded out of the nuclear reactor as one unit.

IPC Classes  ?

• G21C 3/326 - Bundles of parallel pin-, rod-, or tube-shaped fuel elements comprising fuel elements of different compositionComprising, in addition to the fuel elements, other pin-, rod-, or tube-shaped elements, e.g. control rods, grid support rods, fertile rods, poison rods or dummy rods
• G21C 7/103 - Control assemblies containing one or more absorbants as well as other elements, e.g. fuel or moderator elements
• G21C 7/117 - Clusters of control rodsSpider construction
• G21C 7/12 - Means for moving control elements to desired position
• G21C 19/06 - Means for supporting or storing fuel elements or control elements
• 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

Abstract

According to an example aspect of the present invention, there is provided a nuclear reactor module which has a containment vessel and a reactor vessel contained inside the containment vessel. The reactor vessel contains a primary circuit with a primary fluid and a reactor core being cooled by the primary fluid. An intermediate volume is formed between the containment vessel and the reactor vessel. The intermediate volume is partially filled with an intermediate fluid. The circulation of the primary fluid is permanently separated from the intermediate volume.

IPC Classes  ?

• G21C 15/18 - Emergency cooling arrangementsRemoving shut-down heat
• 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
• G21D 9/00 - Arrangements to provide heat for purposes other than conversion into power, e.g. for heating buildings