55 results about "Thermosiphon" patented technology

The invention relates to a thermosyphon-assisted natural circulation multistage liquid cooling method, which comprises the following steps of: arranging a double-layer heat exchange interface consisting of a lower high-heat-conduction layer and an upper low-heat-conduction layer in a heat source adjacent area to form a local temperature rise abrupt change area; when the temperature reaches a working liquid boiling threshold value, a local thermosyphon flow jump is generated to drive liquid circulation, and the thermosyphon flow jump has the periodic retriggering capacity by adjusting the material and structure parameters of the double-layer heat exchange interface; a plurality of distributed impedance regulation and control nodes are sequentially arranged along a flowing path of the thermosyphon, so that a flow difference is established between adjacent nodes; multiple stages of thermosyphon cavities are arranged on a flowing path in series, and the starting time sequences of the adjacent thermosyphon cavities are matched to achieve stage-by-stage progressive syphon driving. The condensate is adhered and flows stably in a liquid film form in a condensation outlet area of the last-stage thermosyphon cavity; a liquid turning buffer area is arranged behind a condensation outlet, condensate is guided to a mild backflow path, and closed-loop natural circulation is completed.

A 3D vapor chamber includes a lower body defining an evaporator region, a header positioned above the lower body, conduits extending between the lower body and the header, a condenser region, and a working fluid located within at least one of the lower body, the header, or the conduits. The conduits are configured to direct a flow of the working fluid to and from the lower body and the header. A portion of the working fluid is configured to be in vaporized form during use, and another portion of the working fluid is configured to be in liquid form during use. The conduits are arranged such that the vaporized working fluid and the liquid working fluid are configured to flow in a same direction in at least one of the conduits.

A thermosiphon is provided for a computing system. The thermosiphon includes an evaporating portion and a pool portion. The evaporating portion is operable to be in thermal communication with a computing component of the computing system. The evaporating portion is operable to retain an evaporating volume of fluid to lower a temperature of the computing component. The pool portion is in fluid communication with the evaporating portion. The pool portion is operable to receive excess fluid of the fluid from the evaporating portion when a volume of the fluid in the evaporating portion is greater than the evaporating volume.

This invention discloses a heat dissipation fin, a thermosiphon radiator, and a multi-dimensional heat dissipation device, relating to the field of electronic heat dissipation technology. The heat dissipation fin includes: a shell, an air inlet and a liquid outlet disposed on the shell, and a gas-liquid cavity disposed within the shell; wherein: the air inlet connects the gas-liquid cavity to a receiving cavity within the heat dissipation substrate of the thermosiphon radiator; the liquid outlet connects the gas-liquid cavity and the receiving cavity; the height of the air inlet in the vertical direction is higher than the height of the liquid outlet; the gas-liquid cavity includes: a first guide portion for guiding gas flow and communicating with the air inlet; a second guide portion for guiding liquid flow and communicating with the liquid outlet; and a connecting portion communicating with both the first and second guide portions; the angles between the first guide portion and the connecting portion, and between the connecting portion and the second guide portion, are both obtuse angles. This invention can improve the problem of poor working fluid flow in the prior art and can improve the heat dissipation performance of the radiator.

This invention discloses a distributed photovoltaic energy meter box, comprising a main body with a hinged door and evenly spaced support pillars at its bottom. The main body includes an inner box and an outer box, with heat sinks evenly distributed on the outer box and sealed and fixedly fitted onto the outside of the inner box. A thermosiphon interlayer air duct mechanism is provided on the main body, comprising a vertically connected cavity interlayer formed by the inner and outer boxes, an inlet pipe, and an outlet pipe. The cavity interlayer can be specifically divided into a left interlayer, a right interlayer, and a rear wall interlayer according to its position. The inlet pipe communicates with the bottom of the left interlayer, and the outlet pipe communicates with the top of the left interlayer. An active pressurization mechanism is connected to the inlet pipe. This invention belongs to the field of power equipment technology, specifically referring to a distributed photovoltaic energy meter box.

This invention provides a system for online treatment of siphon failure in the reboiler pipeline of a distillation column, relating to the technical field of thermosiphon in distillation systems. The system includes a liquid phase pipeline in the reboiler, on which a drain valve is installed, and a nitrogen pipeline is connected to the drain valve. By installing a drain valve on the liquid phase pipeline of the reboiler and connecting it to a nitrogen pipeline, the system uses nitrogen to briefly purge the liquid phase pipeline, blowing away metal powder and silicate impurities that clog the reboiler's liquid phase pipeline into the reboiler pump's liquid phase pipeline. These impurities are then filtered and carried away by the reboiler pump's inlet filter, preventing pipeline blockage, improving the reboiler's heat exchange efficiency, and thus improving the problems of reboiler siphon failure and methanol waste. This invention can treat the siphon failure problem of the methanol recovery column's reboiler pipeline online without shutting down the system, avoiding the cost losses caused by shutdown.

The utility model relates to a two-phase closed thermosiphon performance test platform, and effectively solves the problems that when a heat exchanger is directly used for an experiment, the overall occupied space is large, each structure is inconvenient to quickly adjust according to the test condition, the experiment time is long, and the operation is tedious and complicated. According to the two-phase closed thermosiphon performance test platform, the content of a filled refrigerant can be adjusted, a liquid storage device structure can be selectively additionally arranged, the height of the liquid storage device structure can be adjusted through a first adjusting mechanism, a gas-liquid separation structure can be selectively additionally arranged, and meanwhile the height difference between a condensation structure and an evaporation structure can be adjusted through a second adjusting mechanism; the test platform has the advantages that the overall occupied space is small, the experiment cost is reduced, the adjustment operation is convenient, the experiment time is shortened, and the test efficiency is improved. And meanwhile, an experimenter can quickly and accurately know the influence on the performance of the thermosiphon under different conditions.

This invention belongs to the field of geotechnical slope engineering technology, and provides a prefabricated slope soil nailing pipe based on self-circulating heat exchange technology and its construction method. The pipe includes a soil nail shell; a heat exchange assembly, which is disposed inside the soil nail shell and includes a thermosiphon rod and a heat exchange mechanism. The thermosiphon rod is located at the bottom of the soil nail shell, and the heat exchange mechanism is connected to the thermosiphon rod. The heat exchange mechanism absorbs and releases the heat transferred by the thermosiphon rod outward through the soil nail shell. A gravity-promoting drive component is installed inside the heat exchange mechanism to accelerate the flow of the heat exchange medium within the mechanism, ensuring heat exchange between the soil nail shell and the heat exchange mechanism even when the shell is not vertical; and a heat dissipation assembly, which is disposed inside the soil nail shell and connected to the heat exchange mechanism. The heat dissipation assembly releases the heat dissipated by the heat exchange mechanism into the air. This invention can provide stable support for slopes in cold regions and frozen soil beneath the slope.

This application relates to a thermosiphon radiator, which includes a first heat exchange section and a second heat exchange section. The first heat exchange section includes a manifold section and a plurality of heat exchange tubes. The manifold section includes a first manifold with a wall thickness of T. The second heat exchange section includes a first wall, at least a portion of which can contact a heat source. The first and second heat exchange sections are connected. The thermosiphon radiator includes a pressure relief section, which includes a second wall with a thickness of t1, where t1 < T. A first cavity communicates with the interior of either the first or second heat exchange section. By providing a pressure relief section on the thermosiphon radiator, the first cavity circulates with the interior of the first and / or second heat exchange sections, thereby reducing the risk of the thermosiphon radiator bursting, thus improving the safety performance of the thermosiphon radiator while also taking into account its heat exchange performance.

The application belongs to the technical field of power transmission and transformation, and provides a two-phase closed thermosyphon device for power transmission and transformation foundation and a construction method thereof. A separator is arranged between an evaporation section and a condensation section, and an outlet end of the separator is located at an outlet position of an adiabatic section. The evaporated working medium is accumulated at the top of the adiabatic section, the problem of dry inner wall at the connecting position of the condensation section and the adiabatic section is solved, and the flow resistance of the condensed working medium is reduced. In combination with the gas-liquid separator arranged in the adiabatic section, the shear stress between the gas phase and the liquid film is maximally reduced through the gas-liquid separation, the gas-liquid interaction is reduced, the working medium circulation effect is further ensured, the frozen soil rapid warming speed is improved, and the device is used for power transmission and transformation foundation.

An illustrative heat pump system includes: a positive displacement compressor, an expander, and a recuperator. The compressor provides an sCO2 flow with a pressure ≥15 MPa at a temperature ≥120° C. and a mass flow rate ≥4.5 kg / s to deliver between 1 and 10 MWth of power to a thermal load. The recuperator receives an outlet flow from a thermal source such as a geothermal well thermosiphon and directs it as a compressor inlet flow to the compressor and receives a return flow from the thermal load and directs it to the expander while converting at least some residual heat in the return flow into additional heat for the compressor inlet flow. The expander converts at least some pressure of the return flow into power for the compressor, producing an inlet flow to the source with a pressure no higher than 5 MPa at a temperature no higher than 20° C.

The invention provides a uniform-temperature boiler water-cooled wall, which belongs to the technical field of boiler water-cooled walls, and comprises two water-cooled wall cylinders with the same structure and a heat storage pool structure, and each cylinder is formed by enclosing a boiler by a plurality of thermosyphon uniform-temperature units through a connecting assembly. Each unit comprises a heat exchange temperature equalizing body, a thermosiphon and a heat conduction device, the temperature equalizing body comprises a liquid injection containing cavity and a liquid absorption core, and the thermosiphon and the heat conduction device form a closed circulation loop. The two cylinder temperature equalizing bodies are stacked, the heat conductors are arranged in the heat storage pool at the same height at intervals, the phase change material in the pool stores heat, and the heat exchange pipe guides out waste heat.

This invention discloses a thermosiphon loop device. The evaporator consists of four parts: a liquid chamber, a vapor chamber, a microgroove structure, and a filter screen. The microgroove structure significantly increases the number of vaporization nuclei, enhancing boiling heat transfer. Above the microgroove structure, a hemispherical filter screen is designed to drastically reduce the amount of liquid carried into the vapor chamber, thereby enhancing gas-liquid separation within the evaporator. This gas-liquid separation allows the working fluid to have a higher dryness near the evaporation section outlet, significantly increasing the density difference and pressure driving force between the vapor and liquid phases inside the thermosiphon loop, and improving the heat transfer limit. Furthermore, a heat insulation device is installed in the condensate return pipe at the bottom of the evaporation section to suppress backflow caused by the growth and expansion of boiling bubbles, effectively reducing heat leakage at the bottom of the evaporation section. This invention achieves gas-liquid separation within the evaporator and reduces heat leakage at the bottom, thereby improving the heat transfer performance of the thermosiphon loop and making it suitable for high-power heat dissipation requirements.

The invention relates to a rotary dynamoelectric machine (1) having a stator (2) and a rotor (5) supported rotatably about an axis (21), the rotor (5) being connected to a hollow shaft (6) thermally conductively and fixedly for conjoint rotation, the hollow shaft (6) forming a closed cavity and being designed as a thermosiphon which axially has at least one evaporator zone (8) and a condenser zone (9), the condenser zone (9) having at least one fan (12) and at least one cooling disc (17) thermally coupled to the hollow shaft (6), the fan (12) and the cooling disc (17) being arranged coaxially with respect to the hollow shaft (6) and being connected to the condenser portion (9) thermally conductively via the wall of the hollow shaft (6).

The invention relates to a system (9) comprising a vehicle and a cryogenic container (1), which is carried on the vehicle, having an inner tank (2) and an outer container (3) which is vacuum-insulated with respect to the latter, wherein the system (9) further comprises a fluid-conveying device (8) and a pipeline (7) which is led out of the inner tank (2) for removing cryogenic fluid (4) and is connected to the fluid-conveying device (8), wherein the fluid-conveying device (8) is arranged outside the inner tank (2), and the pipeline (7) is designed as a thermal siphon (10) having at least one portion (12) which rises in the direction of the fluid-conveying device (8) and which is at least partially arranged in a region (B) which is insulated with respect to the cryogenic fluid (4) situated in the inner tank (2), wherein a venting line (14), which can be closed by a valve (15), is connected in said region (B), preferably in a removal plane of the fluid-conveying device (8), to the pipeline (7) or directly to the fluid-conveying device (8) and is led back into the inner tank (2) above the connection point to the pipeline (7).

The present disclosure relates to systems and methods of geothermal energy production using a dual thermosiphon heat exchange system. In one system two working fluids in which a thermosiphon flow is induced to recover thermal energy from depth. The system has a subterranean heat exchanger that is formed into an underground formation by drilling, and which is flooded with a first working fluid. Heat from the formation is transferred into the first working fluid. A recovery loop extends from the earth's surface and into the heat exchanger and carries a second working fluid. Heat from the formation is transferred into the first working fluid, and heat from the first working fluid is transferred into the second working fluid. The heat flow from the formation into the first working fluid and from the first working fluid into the second working fluid causes a thermosiphon flow in the working fluids.

This invention discloses an air dehumidification and cooling system and method with thermosiphon water recovery, a cooling tower, and a power plant. The system includes a tower body, a dehumidifier, a dehumidifying liquid regenerator, and a waste heat flue gas recovery unit. The dehumidifier pre-treats the high-humidity air entering the tower to enhance its cooling potential. The dry air comes into counter-current contact with circulating water inside the tower to achieve efficient evaporative cooling. When the generated humid and hot air flows through the thermosiphon array, the water vapor in it is condensed and recovered to a water collection tank. The dehumidified dilute dehumidifying liquid is sent to the regenerator, where it is regenerated by heating with waste heat flue gas from the power plant and then recycled. Through the closed-loop collaborative design of "air dehumidification pre-treatment - efficient evaporative cooling of circulating water - condensation and recovery of humid air moisture by thermosiphon - waste heat utilization to regenerate dehumidifying liquid", the system solves the dual problems of low efficiency and high water consumption of cooling towers in humid and hot environments, simultaneously improving cooling efficiency and water resource recovery rate, and achieving synergistic effects of energy saving and water saving.

A distillation condenser may include an inner condenser tube that includes an inlet to receive vapors from a distillation vessel and an outlet to connect to a reception vessel to receive a distilled liquid condensed from the vapors; an outer tube enclosing the inner condenser tube; and a heating element coupled to an outside of the outer tube. The distillation condenser may further include a controller configured to control the heating element to heat a working fluid in the outer tube and to cause the distillation condenser to function as a two-phase closed thermosiphon (TPCT) as a result of the heated working fluid.

A cooling system can include a first loop disposed at least partially within a space, such as a data center, a second loop disposed at least partially outside the space, and a heat exchanger for transferring heat from the first loop to the second loop. The first loop can include an evaporator for transferring heat from within the space to a first cooling fluid, and a prime mover for circulating the first cooling fluid within the first loop. The heat exchanger can transfer heat from the first cooling fluid to a second cooling fluid. The second loop can include a condenser for transferring heat from the second cooling fluid to an environment outside the space. The condenser can be disposed at a higher elevation than the heat exchanger and the second loop can operate as a thermosiphon.

A container for transporting a reactor is disclosed. The container includes a loop thermosiphon including a chamber, a heat exchanger fluidically coupled to the chamber, and an actuator including an unactuated state and an actuated state. The actuator is configured to automatically transition to the actuated state. The transition is based on an event occurring within the reactor. A working medium is configured to remove heat from the reactor in the actuated state.

High-performance vacuum thermosiphon with phase-bound two-pipe routing for thermal reheating and monovalent energy supply of heat pumps (10) for thermal reheating and energy supply of heat pumps, comprising a closed pipe system with a riser pipe (11) for the vapor phase and a spatially separated return pipe (12) for the liquid phase, which are connected to each other at the lower end via a probe foot (13) and at the upper end via a heat exchanger (15), characterized in that a siphon element (14) is arranged in the return pipe (12) immediately downstream of the heat exchanger (15), which acts as a physical vapor barrier and forces a directed vapor flow exclusively in the riser pipe (11).

The present invention discloses a solar-assisted ocean thermal energy conversion refrigeration system, which includes a heat source module, a cold source module, a refrigeration module and an energy storage module. The refrigeration module jointly utilizes solar energy and ocean thermal energy, and performs refrigeration through a thermally-driven intermittent ammonia-water absorption refrigeration cycle. By means of solar-assisted ocean thermal energy refrigeration and optimizing the structure of a single-stage absorption refrigeration cycle, the cooling capacity of the refrigeration system can be improved, and self-driven refrigeration of the refrigeration module can be achieved, reducing power consumption. By coupling a two-phase loop thermosyphon and optimizing the energy storage module, the intermittent problem of solar energy can be overcome, continuously providing the cooling effect at two low temperatures to users, and enabling self-driven cooling temperature control. The refrigeration module adopts a liquid guide condenser with a liquid infusion function, effectively enhancing the heat exchange effect of the condenser. A demisting net structure with a capillary self-driven liquid guide function is arranged in the generator / absorber, realizing gas-liquid separation while reducing the interference suffered by the refrigerant vapor during rising.

The application relates to a heat exchanger apparatus comprising: a channel for fluid flow extending between an inlet and an outlet; a porous layer dividing a first portion of the channel from a second portion of the channel, wherein the porous layer comprises a plurality of pores configured to enable fluid to be transferred from the first portion of the channel to the second portion of the channel; a plurality of evaporator structures located within the second portion of the channel wherein the evaporator structures comprise a wicking layer configured to enable evaporation of fluid from the surface of the evaporator structures; an ejector section configured to combine fluid from the first portion of the channel with fluid from the second portion of the channel and provide the combined fluid to the outlet.

The utility model discloses a loop type thermosyphon assembly. The loop type thermosyphon assembly comprises a thermal interface element, a channel, a first steam channel and one or more cooling flow pipes, wherein the thermal interface element is used for being coupled to a heat source to be cooled; the channel is coupled to the thermal interface element; the channel includes a vapor barrier and a second vapor channel. The first vapor channel is in communication with the thermal interface element through the second vapor channel. The one or more cooling flow tubes are in communication with the thermal interface element through a vapor isolator. The second vapor channel and the first vapor channel direct vaporized liquid coolant upward and away from the thermal interface element and the heat source, and the one or more cooling flow tubes and the vapor barrier direct liquefied vapor coolant downward and toward the thermal interface element and the heat source.

The utility model relates to a thermosyphon heat exchanger which comprises a first plate, a plurality of first heat exchangers and at least one second heat exchanger, each first heat exchanger is provided with a heat exchange cavity, and the heat exchange cavities of the first heat exchangers communicate with cavities of the second heat exchangers to form a circulation loop; the first plate is provided with a plurality of mounting cavities, at least part of the mounting cavities are arranged at intervals in the length direction of the first plate, at least part of the first heat exchanger is located in the mounting cavities, and the first heat exchanger is fixedly or detachably connected with the first plate; the thermosyphon heat exchanger has better adaptability.

The apparatus for producing cryogenic fluids includes a series of heat exchangers (5, 6, 7) in heat exchange relationship with a hydrogen circuit (2) for uncooled hydrogen, located in at least one cold box (3, 4), and the apparatus (1) includes a pre-cooling device (8) configured to pre-cool the gas circuit (2) for the gas to be cooled to a first determined temperature, and the device includes two thermosiphons (42, 42A) connected in parallel and located in two different cold boxes (3, 3A).

The utility model relates to the technical field of interaction devices, and discloses an intelligent business handling interaction device, which solves the problems in the background technology, and comprises a main machine body, a functional area is arranged on the main machine body, a support plate is arranged in the main machine body, a printing module is arranged on the support plate, and the printing module is arranged on the main machine body. A heat source contact plate is arranged on the printing module, a thermosiphon is arranged on the heat source contact plate and provided with a heat source end and a cooling end, the heat source end is connected with the heat source contact plate, a rear cover is rotatably arranged on the rear wall of the main machine body, and the cooling end penetrates through the rear cover to be connected with a cooling fin. A connecting piece is arranged on the rear cover, an air cooler is arranged at the bottom of the connecting piece, and an air outlet of the air cooler corresponds to the cooling fins. The cooling device has the advantages that the internal temperature of equipment can be effectively reduced, and it is guaranteed that the equipment efficiently operates for a long time, and faults or performance reduction caused by overheating cannot occur.

Title of the invention: Installation and method for producing a cryogenic fluid An installation for producing a cryogenic fluid comprises, arranged in at least one cold box (3, 4), a set of heat exchangers (5, 6, 7) in thermal exchange with the hydrogen circuit (2) to be cooled, the installation (1) comprising a pre-cooling device (8) configured to pre-cool the gas circuit (2) to be cooled to a first determined temperature, the device comprising two thermosyphons (42, 42A) connected in parallel arranged in two different cold boxes (3, 3A). Abstract figure: Fig. 1

A loop thermosiphon assembly may include a thermal interface component configured to be coupled to a heat source to be cooled, a channel coupled to the thermal interface component, a first vapor channel coupled to the channel, and one or more coolant pipes coupled to the first vapor channel and the channel. The channel includes a vapor barrier and a second vapor channel. The first vapor channel is in communication with the thermal interface component via the second vapor channel. The one or more coolant pipes is in communication with the thermal interface component via the vapor barrier. The second vapor channel and the first vapor channel direct vaporized liquid coolant upwards and away from the thermal interface component and heat source, and the one or more coolant pipes and the vapor barrier direct liquefied vapor coolant downwards and toward the thermal interface component and the heat source.

The invention relates to an installation (1) for the production of a cryogenic fluid comprising: a first cryogenic fluid storage (10); a circuit (2) of gas to be cooled; a set of heat exchangers (5, 6) in heat exchange with the circuit (2); a pre-cooling device (8) in heat exchange with at least a first part (5) of the set of exchangers (5, 6); a cryogenic cooling device (9) in heat exchange with at least a second part (6) of the set of exchangers (5, 6); a cryogenic purification device (3) disposed in the circuit (2); the pre-cooling device (8) comprising a thermosiphon (48) fluidically connected to a second storage (4) of pre-cooling fluid, configured to receive fluid from the second storage (4) to maintain a predetermined level of pre-cooling fluid in the thermosiphon (48). Abstract figure: Fig. 1