95 results about "Thermosipho" 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.

The invention discloses an in-tank convection prevention device and method. The in-tank convection prevention device comprises a storage tank body, a heat insulation module, a shielding corrugated plate, a bonding connecting strip and a convection blocking strip. According to the convection prevention method, the heat insulation module is firmly fixed by bonding the connecting strips, and a gas vertical flowing channel in a gap between the storage tank body and the heat insulation module is forcibly cut off by utilizing the transversely arranged convection blocking strips; according to the storage tank, a'thermosyphon 'closed circulation loop causing heat transfer is effectively damaged, continuous gas convection is avoided, and therefore structural damage or deformation of the storage tank body caused by local low-temperature impact is effectively prevented while the overall cold insulation performance is greatly improved and the cold loss is reduced.

The utility model relates to the technical field of hydrochloric acid desorption, in particular to a hydrochloric acid desorption device which comprises a hydrochloric acid desorption tower, and the top of the hydrochloric acid desorption tower is sequentially communicated with a primary condensing device, a secondary condensing device, a freezing device, a demister and a hydrogen chloride buffer tank; one side wall of the hydrochloric acid desorption tower is communicated with a hydrochloric acid storage tank; the side wall of the hydrochloric acid desorption tower is also communicated with a calcium chloride solution storage tank; a bottom liquid outlet of the hydrochloric acid desorption tower is communicated with a first inlet of the thermosyphon reboiler, the thermosyphon reboiler is provided with a first outlet and a second outlet, the first outlet is communicated with a liquid inlet of the hydrochloric acid desorption tower, and the second outlet is sequentially communicated with the multi-effect evaporation device and the flash separation tank; and the flash separation tank is respectively communicated with a calcium chloride solution storage tank and a second inlet of the thermosyphon type reboiler. According to the utility model, the equipment investment is reduced, the concentration efficiency of the calcium chloride solution is improved, the energy consumption is reduced, and calcium chloride is prevented from flowing back into the desorption tower to cause blockage.

The present disclosure relates to a wearable instrument [100] comprising at least cooling arrangement [200]. The at least one cooling arrangement [200] comprises: at least one peltier module [202] including a cooling surface [202a] and a heating surface [202b]; a cooling transfer unit [204] at least partially in contact with the cooling surface [202a] of the at least one peltier module [202], for transfer of a cooling effect from the cooling surface [202a] of the at least one peltier module [202] to a fluid stored therein; and a heat dissipation unit [206] at least partially in contact with the heating surface [202b] of the at least one peltier module [202], to transfer heat from the heating surface [202b] of the at least one peltier module [202] to ambient air. Notably, the heat dissipation unit [206] comprises one of a thermosiphon heat extraction apparatus [218] or a heat pipe-based heat extraction apparatus [218].

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.

The utility model provides a liquid storage device with a thermosyphon function, which comprises a liquid storage tank which is vertically arranged, a liquid storage cavity is arranged inside the liquid storage tank, a liquid inlet pipe, a liquid outlet pipe, a balance pipe and a thermosyphon oil cooling air return pipe which are all communicated with the liquid storage cavity are arranged outside the liquid storage tank, and a thermosyphon oil cooling liquid supply pipe communicated with a thermosyphon liquid storage space is arranged outside the liquid storage tank. At most five partition plates are arranged in the liquid storage cavity and used for defining a thermosyphon liquid storage space with an upward opening in the liquid storage cavity, the liquid inlet pipe is located at the top end of the liquid storage tank and used for being communicated with a condenser, the liquid outlet pipe is located at one side end of the liquid storage tank and close to the bottom end of the liquid storage tank and used for being communicated with external equipment, and the balance pipe is located at the top end of the liquid storage tank and used for being communicated with the external equipment. The thermosyphon oil cooling air return pipe is located at the other side end of the liquid storage tank and located above the thermosyphon liquid storage space, and the thermosyphon oil cooling liquid supply pipe is located at the other side end of the liquid storage tank.

A thermosiphon condensation heating system for heating a space and / or water using a plurality of heat packages is disclosed. The thermosiphon condensation heating system includes one double-walled heating unit and a controlling system. The double-walled heating unit comprises one inner chamber, one outer chamber, one perforated heater, and a closed-loop thermosiphon system. The closed-loop thermosiphon system includes one inner tubular coil with a rectangular cross-sectional structure, one outer tubular coil with a rectangular cross- sectional structure, a connection pipeline connecting the inner tubular coil and the outer tubular coil together, a predetermined amount of heat-transfer fluid, and at least one heat-exchange unit. The plurality of heat packages includes heat-transfer fluid vapor packages directed toward the at least one heat-exchange unit for releasing latent heat energy of heat-transfer fluid vapor packages all at once upon reaching the heat-exchange unit.

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.

The utility model discloses a heat dissipation system and an energy storage all-in-one machine, the energy storage all-in-one machine comprises a battery module and an energy storage converter, and the heat dissipation system comprises a liquid cooling heat dissipation module, a thermosyphon radiator and a fan; the liquid cooling heat dissipation module comprises a liquid cooling heat dissipation pipeline and a first condenser, and the liquid cooling heat dissipation pipeline is connected with the battery module and the first condenser; the thermosyphon radiator comprises an evaporator and a second condenser, the evaporator is connected with the second condenser through a circulation pipeline to form a circulation loop, and the evaporator is in heat conduction contact with the heating unit of the energy storage converter; and the first condenser and the second condenser share a fan for cooling. In the embodiment of the invention, the thermosyphon radiator is used for radiating the energy storage converter, and meanwhile, the thermosyphon radiator and the liquid cooling radiating module share the fan for cooling and radiating the second condenser, so that a pump, a heat exchanger, a valve and other parts can be omitted, the whole machine power is not occupied, the system efficiency is improved, the system cost is reduced, and the whole machine volume is reduced.

The application discloses a heat exchange structure, a heat exchange device and a thermosyphon radiator, and relates to the technical field of radiators. The heat exchange structure comprises a heat exchange cavity used for containing a heat exchange working medium. A plurality of tubular parts are arranged on a heated cavity wall of the heat exchange cavity close to a heat source. The tubular parts extend towards a side away from the heated cavity wall. The extension end of the tubular part is closed. The heated cavity wall is provided with an opening corresponding to the tubular part and communicating with the tubular cavity of the tubular part. The tubular part is provided with a fin. The plate surface of the fin is arranged along the extension direction of the tubular part. The application can increase the evaporation area of the heat exchange structure, so that the bubbles generated during evaporation and boiling are not additionally blocked by the fin, the heat transfer effect of the bubbles is improved, the heat resistance of the radiator is effectively avoided, the boiling efficiency of the working medium at different depths is improved, and the heat exchange efficiency of the heat exchanger is improved.

The utility model provides an evaporator, thermosyphon heat exchanger and power conversion equipment, the evaporator comprises an evaporator body and a working medium guide structure arranged in the cavity of the evaporator body, and the area of the inner surface of the first side wall of the evaporator body corresponding to a heating point is a heated area. The working medium guiding structure is at least partially and correspondingly arranged in the heated area or arranged above the heated area, the working medium guiding structure is provided with a guiding face, and the guiding face extends in the direction away from the heated area. By adopting the scheme, the guide surface of the working medium guide structure guides the vaporized vaporizing working medium to at least one side far away from the heated area in a shunting manner, so that the situation that the vaporizing working medium vaporized after absorbing heat in the lower layer area of the heated area affects the heat exchange effect of the upper layer area of the heated area in the rising process is reduced; and the cooling effect of the evaporator on a heating point is further improved.

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 invention relates to the technical field of heat dissipation devices, in particular to a thermosyphon heat dissipation device which comprises a condenser, an evaporator and a gas-liquid separator. The condenser comprises a condensation body part, an inlet structure and an outlet structure, wherein the inlet structure and the outlet structure communicate with the condensation body part. The evaporator comprises an evaporation main body part, a liquid inlet and an air outlet, the liquid inlet and the air outlet are communicated with the evaporation main body part, the air outlet is communicated with the inlet structure, and the liquid inlet is communicated with the outlet structure. The gas-liquid separator at least comprises a liquid collecting pipe, the first end of the liquid collecting pipe is communicated with the gas outlet and the inlet structure, and the second end of the liquid collecting pipe is communicated with the liquid inlet. The gas-liquid separator is arranged so that the gas-liquid separation path can be formed between the evaporator and the condenser, at least part of the liquid working medium in the working medium flowing out of the gas outlet can flow back into the evaporation main body part through the liquid inlet through the liquid collecting pipe, the dryness of the working medium entering the condenser can be improved, and the cooling efficiency of the condenser can be improved; and therefore, the overall heat dissipation efficiency of the thermosyphon heat dissipation device can be improved.

This invention relates to the field of transformer technology, and more particularly to an oil-immersed self-cooled high-heat-dissipation transformer. Its technical solution includes an oil tank, a thermal expansion actuator, an opening adjustment mechanism, and an energy storage damping mechanism. The thermal expansion actuator is immersed in oil and drives a piston actuator through a connecting pipe. The piston actuator drives a connecting rod to rotate a rotating ring, which in turn drives an adjustment plate to move circumferentially through a drive plate, sliding shaft, and sliding groove, adaptively changing the flow area of ​​the oil inlet and outlet. Multiple pulsation dampers separate the air chamber and oil chamber through elastic diaphragms to absorb pressure pulsations. A worm gear is installed inside the oil drain pipe, driving a drive disc and an eccentric rotating shaft via a bevel gear pair, causing a push rod to drive a flow divider plate to oscillate reciprocally, cooperating with a fan to generate a sweeping airflow. The flow divider bundle achieves multi-channel thermosiphon circulation, and a filter cover and dehumidifier ensure oil cleanliness. This invention achieves purely mechanical adaptive flow regulation and hydraulically driven air cooling enhancement, requiring no external energy, resulting in high heat exchange efficiency and stable operation.

The utility model discloses a two-phase cold plate which comprises plate sheets and a sealing strip, the two plate sheets are arranged in parallel, the sealing strip is connected with the two plate sheets and arranged on the peripheries of the plate sheets, the thickness of the plate sheets is smaller than that of the sealing strip, the plate sheets and the sealing strip jointly define a relatively closed cavity, a plurality of partition strips are arranged in the cavity, and the partition strips are arranged in the cavity. The partition strips are connected with the sealing strips on the upper side and the lower side of the two-phase cold plate to divide the cavity into a plurality of channels, and the adjacent channels are communicated with each other. According to the two-phase cold plate and thermosyphon system, a structure similar to the prior art can be formed through simple structural arrangement and a simple manufacturing process, the problem that CNC tank washing time is long in the production and manufacturing process is solved, production efficiency is improved, and meanwhile the heat exchange effect is guaranteed.

Systems and methods for recovering natural gas liquids include a distillation column; a thermosyphon reboiler fluidly connected to the distillation column; a Joule-Thomson valve fluidly connected to the distillation column and operable to control a flow of fluid into the distillation column; and a lift gas control valve operable to control a flow of lift gas into the distillation column through a return line of the thermosyphon reboiler. An interlock system operatively couples the Joule-Thomson valve and the lift gas control valve to operate the lift gas control valve in response to operation of the Joule-Thomson valve.

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.

The invention discloses an inverted two-phase thermosyphon heat dissipation system with a heat storage function and a control method of the inverted two-phase thermosyphon heat dissipation system. The inverted two-phase thermosyphon heat dissipation system comprises a heat storage integrated evaporator, a steam transmission pipe, a condenser, a liquid ascending pipe, a liquid storage device and a liquid descending pipe which are sequentially connected. An inlet and an outlet of the evaporator are connected with liquid and gas headers respectively, parallel channels are arranged between the headers in parallel, and heat-conducting fins and phase-change materials are arranged outside the headers. The evaporator is higher than the condenser, and the liquid storage device is higher than the evaporator. A pressure balance pipe is arranged between the top of the liquid storage device and the inlet of the evaporator, a balance valve is arranged on the pressure balance pipe, and a downcomer valve is arranged on the liquid downcomer; a liquid level sensor is arranged in the evaporator; a temperature sensor is arranged on the surface of the heating equipment; the system has efficient heat exchange and heat storage performance, and pump-free self-circulation and high-flux phase change heat dissipation can still be achieved under the inverted working condition that the evaporator is higher than the condenser.

A water pump and a water tank are arranged between an evaporator and a condenser, the condenser is provided with a first condensation chamber and a second condensation chamber which are oppositely separated, and the evaporator is provided with an evaporation chamber. The connecting pipe set comprises a first backflow pipe, a second backflow pipe, an acceleration backflow connecting pipe and at least one gas conveying pipe, one end of the gas conveying pipe is connected with the evaporation cavity, the other end of the gas conveying pipe is connected with the first condensation cavity and the second condensation cavity, one end of the first backflow pipe is connected with the water tank, and the other end of the first backflow pipe is connected with the second condensation cavity. One end of the second backflow pipe is connected with the water tank, the other end of the second backflow pipe is connected with the second condensation cavity, one end of the acceleration backflow connecting pipe is connected with the water tank, and the other end of the acceleration backflow connecting pipe is connected with the evaporation cavity. Flow and circulation speed of cooling liquid are improved, heat exchange is accelerated, thermal resistance is reduced, circulation loops are increased, and heat dissipation capacity is improved.

The utility model relates to the technical field of thermosyphon coolers, in particular to a circulation driving structure of a thermosyphon cooler, which comprises an evaporator, a gas-liquid separation tank arranged above the evaporator, an air cooler arranged above the gas-liquid separation tank, and a gas conveying pipe connected with the top of one end of the evaporator and connected with the top of the other end of the gas-liquid separation tank. The top of one end of the gas-liquid separation tank is connected with the top of one end of the air cooler through a gas separation pipe, and the bottom of the other end of the evaporator is connected with the bottom of the other end of the gas-liquid separation tank through a liquid return pipe. According to the circulation driving structure of the thermosyphon cooler, the gas-liquid separation tank is arranged above the evaporator, and the top and the bottom of the evaporator and the top and the bottom of the gas-liquid separation tank are connected through the gas conveying pipe and the liquid return pipe respectively, so that effective separation of gas and liquid is achieved. By means of the design, the flow resistance of the gas and liquid mixture in the pipeline is reduced, the problems of blockage and unsmooth flow are avoided, and therefore the overall performance of the cooler is improved.

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.

The invention discloses a mine disaster prevention and control and energy system based on Rankine cycle and thermosyphon principles, which comprises a vacuum solar heat collector connected with a Rankine cycle system to convert solar energy into heat energy; the carbon dioxide thermosyphon device is vertically mounted in a mine elevator shaft to absorb heat of a rock stratum; the liquid carbon dioxide cooling loop surrounds the mining area to realize active cooling; the heat storage tank and the lithium ion battery respectively store heat energy and electric energy; and the intelligent control system operates coordinately. The solar heat collector drives the Rankine cycle to generate power and provides a heat source for the thermosyphon device, the thermosyphon device transmits rock stratum heat through the thermosyphon effect, the cooling loop in the mine cooperates with the thermosyphon device to regulate and control the temperature and humidity of a mining area, and an energy self-sufficient and heat damage prevention closed loop is formed. By coupling solar Rankine cycle power generation and thermosyphon terrestrial heat recovery, energy self-sufficiency is achieved; a carbon dioxide working medium transcritical phase change cycle is used for cooperating with a liquid cooling loop to reduce the underground temperature; deep well heat damage is treated with low energy consumption, and mining safety is guaranteed.

The invention relates to the technical field of chemical equipment, and particularly discloses a methanol vaporization system for chloromethane synthesis, a process control method and application. The system comprises a vertical vaporization cavity, a silicon carbide tube nest circulating reboiler, a flexible connection part and a safety control system. A vertical thermosyphon circulation loop is formed between the vertical vaporization cavity and the silicon carbide reboiler through a connecting pipeline; the flexible connecting part is arranged on the connecting pipeline to buffer vibration; the safety control system comprises a methanol concentration monitor and a remote stop valve and is used for achieving rapid isolation during leakage. The process control method of the system comprises the steps of safety monitoring, quick response and automatic heat source switching. Efficient heat transfer (the total heat transfer coefficient is 450-550 W / (m.K)) is achieved through the vertical thermosyphon structure, the problem of vibration fracture of the silicon carbide pipe is solved through the flexible connection component, and the reliability, energy efficiency and intrinsic safety level of equipment are remarkably improved through the design that the response is fast within 3 seconds or less and the static reserve is low within 1000 liters or less.

The utility model provides a thermosyphon type reboiler, and relates to the technical field of thermosyphon type reboilers, the thermosyphon type reboiler is characterized in that the inner bottom of an extraction shell is fixedly connected with a liquid collection bottle, one side of the bottom of the liquid collection bottle is communicated with a siphon, the top of the extraction shell is fixedly connected with a partition plate, and a filter component is placed in the partition plate; the bottom end of the extraction bottle is arranged at the narrow opening part in a sealing and sleeving manner; and a spiral condenser pipe is vertically arranged in the extraction bottle. According to the extraction device, transferred hot air is directly transferred into the extraction shell along the heating pipe through the heat inlet conical opening, a part of the heating pipe is arranged in the liquid collecting bottle, then an extracting solution in the liquid collecting bottle is liquefied and heated, condensate water can enter the spiral condensation pipe, and then the condensation effect of the spiral condensation pipe in the extraction bottle is improved; and the condensed water can be recycled in the water inlet pipe, the water outlet pipe and the spiral condensation pipe, so that the condition of waste is avoided.

This invention relates to the field of bridge technology and provides a design method for a passive cooling system for cables. The method involves obtaining the fire heat flux density acting on the outer surface of the cable's protective layer, using this fire heat flux density as a heat input benchmark to determine the thermal configuration design parameters of the phase change material layer and the heat dissipation configuration design parameters of the thermosiphon cycle. A comprehensive thermal verification is then performed by combining the fire heat flux density, design buffer time, and the critical failure temperature of the cable material to determine the first dimensional design parameters related to the phase change material layer and the second dimensional design parameters related to the condensation section. These first and second dimensional design parameters are then used as the system design result. This application enables active and efficient cooling that is completely independent of external energy and control. It can self-sense and self-start when a fire occurs and continuously provide protection for the cable using its own physical mechanisms, thereby bridging the technological gap between passive delay and complex active cooling.

The invention relates to a tube head connecting structure with a spiral sleeve arranged between a heat exchange tube and a tube plate tube hole, the spiral sleeve is assembled between the outer wall surface of the heat exchange tube and the tube plate tube hole, an inner spiral channel groove is formed in the inner cylindrical surface of the spiral sleeve, and an outer spiral channel groove is formed in the outer cylindrical surface of the spiral sleeve; a radial through hole is formed in the tail end, close to the positioning connecting end, of the spiral channel groove, the end face of the spiral sleeve serves as the bottom of a welding seam, and welding connection is formed between the outer wall of the heat exchange pipe and a pipe hole of the pipe plate. Microcosmic gaps between the heat exchange tube and the tube plate are changed into local thermosyphon flow channels through the spiral channel grooves, the local thermosyphon flow channels are used for cooling connection welding seams between the heat exchange tube and the tube plate on the tube pass side, the hidden danger of corrosion of the gaps of the tube head of the heat exchange tube is eliminated, a tube head cooling channel is formed, the metal temperature of the welding seams of the tube head is reduced, and the connection reliability of the tube head is improved.

The invention belongs to the technical field of geothermal energy development, and particularly relates to a waste oil and gas well two-phase heat extraction system and a control method. The system comprises an underground coaxial pipe structure and a ground system, the underground system is composed of a central ascending pipe and a production sleeve, and an evaporation cavity is formed in the bottom of the underground system; the ground system comprises a working medium circulation unit, a power generation unit and a control system. The control method comprises the core steps that firstly, the high pressure of a system is maintained through a back pressure valve, and a liquid working medium is kept in a boiling restraining state in the annular space descending period; the working medium is accurately controlled to absorb heat and boil when reaching a temperature critical point when reaching a well bottom evaporation chamber; a generated vapor-liquid mixture is driven by the thermosyphon effect to return to the ground through the central ascending pipe; the back pressure and the injection flow are adjusted in real time to maintain stable and efficient operation by dynamically monitoring return working medium parameters. The system makes full use of phase change latent heat of the working medium, is high in heat extraction efficiency, and has the advantages of being high in system self-driving capacity, low in operation cost, safe, environmentally friendly and capable of achieving green transformation of the abandoned well.

The utility model discloses a thermosyphon heat dissipation module used for a 5G base station, a condensation mechanism comprises a condenser and a plurality of harmonica-shaped tubes, the first end of each harmonica-shaped tube is closed, the second end of each harmonica-shaped tube is fixedly installed on the condenser, the condenser is internally provided with a condensation chamber, each harmonica-shaped tube is internally provided with a plurality of condensation flow channels, and the condensation flow channels are communicated with the condensation chamber. Each condensation flow channel is communicated with the condensation chamber; the evaporation mechanism comprises an evaporation box body, an air inlet is formed in the lower portion of the condenser, the evaporation box body is fixedly installed at the air inlet, an evaporation cavity is formed in the evaporation box body, the evaporation cavity is communicated with the condensation cavity, a first installation opening is formed in the heat dissipation box body, and the evaporation box body penetrates through the first installation opening to be arranged in the heat dissipation box body; a sealed heat dissipation cavity is formed by the evaporation cavity, the condensation cavity and all the condensation flow channels, and cooling liquid is arranged in the heat dissipation cavity. The radiator is simple in structure, small in size, light in weight, low in cost, free of noise, high in heat dissipation performance and capable of being installed and used in a vertical reverse-gravity heat dissipation mode, and installation flexibility is improved.

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.