The invention relates to an immersion cooling unit (1) comprising an immersion cell defining an internal cavity (3), a bath (5) comprising a dielectric working fluid partially filling the internal cavity and a gas phase so as to form a two-phase system; the unit (1) further comprising a condensation device which is positioned in the internal cavity above the electronic component so as not to be immersed in the dielectric working fluid, and at least one electronic component (7) which is totally or at least partially immersed in the bath (5); the unit (1) is characterised in that the dielectric working fluid comprises perfluoro-4-methyl-2-pentene and in that the gas phase has a moisture content of at least 20%.
The invention relates to a pressure drum (1) for storing an insulating mixture (M) for an electrical transformer, the pressure drum (1) comprising a chamber (2) configured to receive the insulating mixture (2), wherein the chamber comprises a wall (20) that defines an interior space (21), and a heating device (3) comprising at least one electric heating resistor (4) positioned in the chamber (2), wherein the heating device (3) is configured to heat the insulating mixture (M) internally in order to homogenise it and enable an electrical transformer to be filled.
The invention relates to a dilution apparatus (1) for diluting at least one powder (P) in at least one liquid (L), the dilution apparatus (1) comprising a tank (10) configured to receive a solution (S), a recirculation circuit (20), at least one filtration screen (3) positioned in the tank (10) so as to define a lower enclosure below the filtration screen (3) and an upper enclosure above the filtration screen (3), the recirculation circuit (20) being configured to collect, via the recirculation inlet (21), a flow of solution in the lower enclosure, and also to inject, via the recirculation outlet (22), the flow of solution into the upper enclosure so as to improve the dilution.
B01F 21/20 - Dissolution utilisant le mélange à écoulement
B01F 25/21 - Mélangeurs à jet, c.-à-d. mélangeurs utilisant des courants de fluides à grande vitesse avec des injecteurs immergés, p. ex. des buses, pour injecter des jets à haute pression dans un grand volume ou dans des chambres de mélange
B01F 25/50 - Mélangeurs de circulation, p. ex. dans lesquels au moins une partie du mélange est évacuée d'un récipient et réintroduite dans celui-ci
The invention relates to a method and a facility for recycling a mixture comprising at least one fluorinated fluid, the mixture comprising one or more fluorinated chemical components and one or more contaminants selected from among one or more hydrocarbons and/or one or more fluorinated contaminants, including a step of double membrane filtration for reducing the contaminant content of the mixture.
Systems and methods for remote monitoring of refrigeration systems to detect leaks of refrigerant include a local monitoring station, having at least one sensor configured to be in communication with a refrigeration system having refrigerant, the sensor measuring at least one parameter of the refrigeration system. At least one server is in communication with the local monitoring station and accessible by at least one user communication device. Software residing at least partially on the local monitoring station and/or the server: records data from the sensor periodically to generate recorded sensor data; collects the recorded sensor data over time to generate collected sensor data; determines via at least one algorithm, using the collected sensor data, whether a refrigerant leak is occurring in the refrigeration system being monitored to thereby generate a state of the refrigeration system; and communicates the state of the refrigeration system to the at least one server.
The invention relates to a composition intended for the cleaning of contaminants and flux residues on electronic assemblies, particularly solder cream residue. Said composition comprises: - from 20% to 99.5% by weight of a main solvent consisting of at least a C6-C15 glycol ether, and optionally a secondary solvent, - from 0.5% to 20% by weight of a selected acid additive which is a phosphoric acid ester. The invention also relates to a defluxing product incorporating said composition, as well as to the defluxing methods using these products.
A system (1) for measuring oil viscosity, the system being configured to be mounted in a circuit for lubricating a cooling system, the measuring system (1) comprising: • a main body (2) comprising a vertical portion (20) mounted between the inlet port (23) and the outlet port (24), • a metal ball (3) capable of moving in the vertical portion (20) under the effect of gravity, • a detection device configured to measure the time it takes for the metal ball (3) to fall between a high point and low point of the vertical portion (20), • a computing device configured to determine the viscosity of the oil based on the measured fall time, • the measuring system (1) comprising a drive device (4) configured to magnetically drive the metal ball (3) in the vertical portion (20) from the low point to the high point.
G01N 11/12 - Recherche des propriétés d'écoulement des matériaux, p. ex. la viscosité, la plasticitéAnalyse des matériaux en déterminant les propriétés d'écoulement en déplaçant un corps à l'intérieur du matériau en mesurant la vitesse de montée ou de chute du corps en mesurant la pénétration de jauges biseautées
G01N 33/30 - Huiles pour des propriétés lubrifiantes
8.
METHOD FOR SEPARATING MOLECULES FROM A FLUID MIXTURE COMPRISING AT LEAST ONE FLUORINATED COMPONENT
Disclosed is a method for separating a plurality of chemical components (Cx) from a chemical mixture (M1-M4) comprising a plurality of fluorinated fluids, the method comprising: • a step of identifying (E2), in the chemical mixture (M1-M4), at least two sub-mixtures (N1-N5), each complex sub-mixture (N1-N5) being associated either with a first group (G1) for secondary pressure swing distillation or with a second group (G2) for secondary extractive distillation, • a step of primary distillation (E3), using a main column (1), so as to separate each identified sub-mixture (N1-N5), • a secondary distillation step (E4), using the same advanced unit of two auxiliary columns, for distilling each complex sub-mixture (N1-N5), the complex sub-mixtures (N1-N5) of the first group (G1) being separated by the pressure swing distillation method and the complex sub-mixtures (N1-N5) of the second group (G2) being separated by the extractive distillation method.
The invention relates to a composite alloy for lead-free solder, having a composition comprising 92.4% - 98.4% by weight of bismuth (Bi), 1.5% - 7% by weight of silver (Ag) and 0.1% - 0.6% by weight of nickel (Ni). Such an alloy has good mechanical and electrical properties as well as good wetting properties.
The invention relates to a lead-free solder alloy having a composition comprising: - 86% - 94% by weight of tin (Sn), - 5% - 10% by weight of antimony (Sb) and - 0.5% - 4% by weight of copper (Cu).
A method for distributing a mixture (M) capable of providing electrical insulation and/or stopping an electric arc in a chamber (10) of a high or medium voltage electrical apparatus (1), the mixture (M) comprising at least one organic, electrically-isolating, chemical product (Gl) and at least one diluting product (G2), the mixture (M) being stored in a container (2), the method comprising a step of cooling said mixture (M) to a temperature less than -10 °C, a step of draining the container (2) containing the cooled mixture (M) and a step of distributing the mixture (M) in the chamber (10) of the high or medium voltage electrical apparatus (1).
H01H 33/22 - Emploi particulier de fluides pour extinction d'arcs
H02B 13/02 - Aménagement d'appareillages de commutation dans, ou structurellement associés avec, une enveloppe, p. ex. une armoire avec une enveloppe métallique
The invention concerns a concentrated coolant intended to be added to a heat transfer liquid to lower the freezing temperature of same, said coolant comprising a C2-C6 glycol, water in an amount of less than 10% by mass and corrosion inhibitors, said corrosion inhibitors being a mixture of at least a C7-C11 aliphatic monocarboxylic acid and a C4-C15 aliphatic dicarboxylic acid, characterised in that it comprises an amount of said C4-C15 aliphatic dicarboxylic acid of between 0.1 and 1% and an amount of said C7-C11 aliphatic monocarboxylic acid greater than or equal to 0.5% and less than 4%, the ratio between said C7-C11 aliphatic monocarboxylic acid and said C4-C15 aliphatic dicarboxylic acid being between 3 and 7.
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