2413results about How to "Improve heat transfer effect" patented technology

According to the liquid cooling heat dissipation cold plate based on the TPMS structure and the implementation method of the liquid cooling heat dissipation cold plate based on the TPMS structure, a model file of a three-dimensional TPMS porous structure is generated through K3DSurf software based on a parameter equation of a heat exchange unit, and after a complete liquid cooling cold plate model based on the TPMS structure is assembled and constructed, the liquid cooling heat dissipation cold plate based on the TPMS structure is obtained through laser 3D printing. Single-phase or two-phase flow heat exchange can be carried out, and the heat dissipation capability of electronic equipment with high heat flux density can be remarkably enhanced.

The invention relates to the technical field of extremely-low-temperature refrigeration equipment, and provides an annular heat exchange unit which comprises a flow channel box, and the two ends of the flow channel box are covered with an upper cover body and a lower cover body correspondingly; a cavity partition plate is arranged in the runner box to form an upper heat exchange cavity and a lower heat exchange cavity; two upper runners which are not communicated with each other are arranged in the upper heat exchange chamber; two lower runners which are not communicated with each other are arranged in the lower heat exchange chamber; the adjacent flow channel partition plates in the two cavities are arranged in a staggered mode to form a transition flow channel. The annular heat exchange unit further comprises two circulating pipe sets. Therefore, the two heat exchange channels which are not communicated with each other and are arranged up and down are formed in the runner box; media in the two heat exchange channels do not make contact with each other, and heat exchange is achieved through the flow channel partition plate in the flowing process. On the premise that the overall size of the runner box is not increased, two heat exchange channels which are arranged in an up-down staggered mode are formed in the runner box. The heat exchange efficiency is improved, and the space is saved. The invention provides a multi-stage heat exchanger and a dilution refrigerator.

The invention discloses an online water pollution monitoring device with a self-cleaning function, and belongs to the technical field of water environment monitoring equipment, the online water pollution monitoring device comprises a floating platform, a plurality of floating bodies are connected to the peripheral side of the bottom of the floating platform in a surrounding manner, an equipment box is mounted at the bottom of the floating platform, a protective mesh enclosure is connected to the bottom of the equipment box, and a water suction pump is mounted in the equipment box. According to the device, water bodies with corresponding depths are extracted through liquid inlet nozzles with different depths, the water bodies are fed into a detection box, the water body environment is monitored through a detection probe, after the probe is used, distilled water obtained through condensation of a condensation box can be extracted through a water suction pump, and after the distilled water is fed into an inner flushing mechanism, liquid spraying flushing can be conducted on the multiple detection probes; algae in water are prevented from adhering to the surface of the probe through flushing of distilled water, the detection precision is improved, meanwhile, the scraping and sweeping mechanism moves to scrape the algae adhering to the outer side of the protective net cover, and water pumping is prevented from being affected.

The invention discloses a heat exchange device which comprises a heat exchange base body, at least one side of the heat exchange base body is provided with a heating surface, a cooling channel capable of conducting heat with the heating surface is arranged in the heat exchange base body, and at least one section of channel in the cooling channel is a vortex channel; a spiral blade extending in the extending direction of the vortex channel is arranged in the vortex channel so that fluid can flow in a spiral mode. In the using process, due to the existence of the spiral blades, fluid rotates and advances in the flow channel, and the fluid can damage a boundary layer around the flow channel in the rotating process, so that the heat exchange capacity higher than that of a traditional structure is obtained, the heat exchange base body can be applied to occasions with higher heat flow density, and the heat exchange efficiency is improved. The heat exchange device can effectively solve the problem that an existing heat exchange device is poor in heat exchange effect.

The utility model provides a heat exchange assembly, a box body, a battery and an electric device. The heat exchange assembly comprises a conveying mechanism, a flow dividing mechanism and a heat exchange plate, the conveying mechanism comprises a main body and a plurality of connecting parts which are arranged at intervals in the first direction and communicate with the main body, the flow dividing mechanism is arranged on the side, in the second direction, of the conveying mechanism and communicates with the connecting parts, and the heat exchange plate is arranged on the side, in the third direction, of the flow dividing mechanism. A heat exchange flow channel in the heat exchange mechanism is communicated with the shunting mechanism, so that the external environment is communicated with the heat exchange plates through the transmission mechanism and the shunting mechanism to realize input and output of a heat exchange medium in the heat exchange assembly, current collectors do not need to be independently arranged at two ends of a single heat exchange plate, the production cost of the battery is reduced, and the size of the heat exchange assembly is reduced; and the battery energy density is improved.

The invention discloses a heat exchange structure design method based on three-period minimal curved surface space subdivision. The invention provides a heat exchange structure design method based on a three-period minimal curved surface (TPMS) structure, and aims to improve the performance of efficient heat dissipation equipment. According to the method, by generating the Gyandroid structure and conducting multi-layer subdivision, the fluid flowing path is optimized, and the heat exchange efficiency is improved. Meanwhile, by adopting the lightweight composite material for construction, the structural weight is remarkably reduced, and the composite material is suitable for high-efficiency heat dissipation application in the fields of new energy automobile battery heat management, electronic equipment, aerospace and the like. Through finite element simulation analysis, the heat dissipation performance and mechanical strength of the structure are verified, efficient heat dissipation can be achieved in a limited space, and the service life of equipment is prolonged.

The invention discloses a stator and oil injection assembly integrated oil cooling motor, a stator assembly is fixed in a casing, the stator assembly, a rotor assembly and the casing form a cooling cavity, the rotor assembly passes through the inner side of the stator assembly and is rotatably connected with the casing, and a rotating shaft oil duct communicated with the cooling cavity is arranged in the rotor assembly; the inner side of the end part of the stator assembly is provided with an oil injection assembly with an inclined flow guide hole, and the end part of the stator assembly is provided with a corresponding through hole, so that the internal oil duct of the outer circle of the stator core, the oil injection assembly and the cooling cavity are communicated; an oil inlet and an oil outlet are formed in the machine shell, cooling oil input from the oil inlet firstly flows through an internal oil channel to cool a stator iron core and then is guided and sprayed to an end winding through an inclined flow guide hole of an oil spraying assembly integrally installed on the stator assembly and a through hole in the end of the stator assembly, and cooling oil input from the rotor assembly firstly cools the interior of the rotor assembly and then cools the interior of the rotor assembly. And then the cooling oil is sprayed to the inner ring surface of the winding and is discharged through the oil outlet. The cooling device has the advantages of being compact in structure and remarkable in cooling effect.

The invention discloses a twisting clamping refrigerating and heating device with cold and hot end separation and work recovery functions. The twisting clamping refrigerating and heating device comprises a stator module, a rotor module and a heat exchange module. The stator module comprises an inner gear and an outer gear, and teeth are arranged on partial edges of the inner gear and the outer gear. The rotor module comprises a torsion clamping refrigerant and a loading gear; the heat exchange module comprises an inner cylinder and an outer cylinder. And the loading gear revolves to drive the torsion clamping refrigerant to change the heat exchange position, and rotates to drive the torsion clamping refrigerant to be loaded and unloaded. When the loading gear is meshed with the inner gear, the loading gear rotates in the forward direction, and the torsion clamping refrigerant generates heat due to loading; when the loading gear is meshed with the outer gear, the loading gear rotates reversely, and the torsion clamping refrigerant absorbs heat due to unloading. According to the device, a heat exchange area is effectively separated, the problem of mutual interference of cold and heat is avoided, and the heat exchange efficiency and power are greatly improved; the resilience force generated when the torsion clamping refrigerant is unloaded is transmitted to the loading area, auxiliary power is provided for the loading process, recycling of work is achieved, and the energy utilization efficiency is improved.

The invention discloses a trapezoidal manifold-microchannel cold plate with a micro-pin-fin porous structure, and belongs to the technical field of heat dissipation of electronic equipment. The device comprises an upper cover plate, a manifold layer, a micro-channel layer and a lower cover plate, the manifold layer comprises an inlet, an outlet, an inlet flow equalizing cavity, an outlet flow equalizing cavity, a manifold inlet channel and a manifold outlet channel, and the micro-channel layer comprises an acceleration section, a buffer section and a micro-pin-fin porous structure. Fluid is distributed to the manifold inlet channel through the flow equalizing cavity under the action of pump work, then enters the micro-channel layer through the manifold inlet channel and takes away heat transferred by the lower cover plate in the micro-channel, and the fluid absorbing heat enters the outlet flow equalizing cavity through the manifold outlet channel. And the manifold structure shortens the flow path, so that the flow is in a development stage, and heat exchange is enhanced while the flow resistance is reduced. The acceleration section of the micro-channel layer inhibits phase change backflow, and the acceleration section and the buffer section are formed by the micro-pin-fin porous structure, so that the formation of a vaporization core is accelerated, and the stability of two-phase boiling is improved.

The present invention relates to a metal hydride hydrogen storage container which is easy to disassemble and can effectively exchange heat, and relates to the technical field of hydrogen storage containers, and in particular to a metal hydride hydrogen storage container which is easy to disassemble and can effectively exchange heat. The present invention comprises: a hydrogen storage alloy tank, a sleeve, a flange and a hydrogen valve; the hydrogen storage alloy tank is installed in the sleeve, and the flange is sealed and connected by a rubber gasket and flange bolts and nuts; a hydrogen valve is installed at the center of the flange; and the interior of the hydrogen storage alloy tank is filled with hydrogen storage alloy powder. The technical solution of the present invention solves the problems in the prior art that the hydrogen storage alloy generates stress on the inner wall of the container due to lattice expansion during the hydrogen absorption process, causing the container to deform and affecting the service life of the container; the hydrogen storage alloy has poor long-term cycle stability and needs to be frequently replaced; the hydrogen storage alloy has poor thermal conductivity and the hydrogen storage device needs to transfer heat to the outside world.

The invention discloses a stator windowing diversion centripetal oil-cooled motor, which comprises a stator assembly, a rotor assembly, a casing and an oil injection component with a windowing diversion structure, the stator assembly comprises a plurality of laminated punching sheet lamination sections, oil holes are circumferentially distributed in the outer circle side of each punching sheet, and the oil holes of the lamination sections are communicated with one another; the stator assembly is fixed in the machine shell, a cooling cavity is formed among the periphery of the stator assembly, the periphery of the rotor assembly and the machine shell, the rotor assembly penetrates through the inner side of the stator assembly, the two ends of the rotor assembly are rotationally connected with end covers of the machine shell respectively, a rotating shaft oil channel communicated with the cooling cavity is formed in the inner side of the rotor assembly, and an oil injection component of a windowing flow guide structure is arranged at the end of the stator assembly. And the oil injection components at the two ends of the stator iron core are communicated with the cooling cavity through an internal oil channel in the outer circle of the stator iron core. Oil enters the iron core and then flows to the two end faces of the iron core, the oil is sprayed out through the spraying holes, and the oil is guided and sprayed to the winding through the oil spraying component of the windowing flow guide structure. The cooling device has the advantages of compact structure, remarkable cooling effect and the like.

The utility model relates to the technical field of heat supply, and provides a heat exchange device for a heat supply system. The heat exchange tube group is arranged in the shell; the turbulent flow assembly is rotationally arranged in the shell and located on the outer side of the heat exchange tube set; and the scraping plate is arranged on the heat exchange tube set in a sliding mode, the scraping plate is in transmission connection with the turbulent flow assembly, and when the turbulent flow assembly rotates along the inner wall of the shell, the scraping plate moves along the outer wall of the heat exchange tube set. By means of the technical scheme, the problems that in the prior art, in order to guarantee normal work of a heat exchange device, the heat exchange device needs to be completely disassembled, impurities and scale in a pipeline of the heat exchange device need to be cleaned up, the cleaning steps are tedious, and manpower and material resources are consumed are solved.

The utility model provides a crude methanol cascade heat pump energy-saving device which comprises a pre-rectifying tower and a normal pressure rectifying tower which are connected in sequence, the bottom of the pre-rectifying tower is connected with a pre-tower reboiler, the normal pressure rectifying tower is connected with N normal pressure tower reboilers, the top of the pre-rectifying tower is connected with a pre-tower heat pump, the pre-tower heat pump is connected with the pre-tower reboiler, and the N normal pressure tower reboilers are connected with N normal pressure tower reboilers. The pre-tower reboiler is connected with a pre-tower reflux device, the top of the normal-pressure rectifying tower is connected with M normal-pressure tower heat pumps, M is equal to N, and M and N are greater than or equal to 2; the atmospheric tower heat pumps are respectively connected with atmospheric tower reboilers, and the N atmospheric tower reboilers are all connected with a refined methanol extraction device; according to the invention, the traditional methanol rectification process is changed, the tower is supplied with heat in a stepped manner through a steam direct compression type heat pump energy-saving technology at the top of the normal-pressure rectification tower, efficient stepped recovery of waste heat energy at the top of the normal-pressure rectification tower is facilitated, production operation is facilitated, and energy consumption is reduced.

The invention discloses a vein-shaped composite bionic micro-channel radiator with petal-shaped fins, relates to the technical field of radiators, and solves the problems that the temperature uniformity of a radiating area of a micro-channel radiator is poor, and extra pumping work consumption is caused. A first-stage vein flow channel is arranged in the center of a micro-channel heat sink, and a hot plate is arranged at the bottom of the micro-channel heat sink; the micro-channel heat sink comprises two first heat sinks and two second heat sinks, and the second heat sinks and the first heat sinks are in mirror symmetry. A plurality of second-level vein runners, a plurality of third-level vein runners and a plurality of fin arrays are arranged in the first heat sink, and the second-level vein runners are obliquely arranged and communicate with the first-level vein runners; the plurality of third-stage vein runners are arranged among the second-stage vein runners at equal intervals; the fin array is arranged at the tail end in the second-stage vein flow channel; the fin array comprises two fins, and the fins are arc-shaped plates. The invention has the characteristics of high heat dissipation efficiency, good temperature uniformity, low flow resistance and small pressure drop, thereby ensuring efficient and stable operation of high-power micro devices.

The utility model discloses a casing of a motor, the motor and rotating equipment, and relates to the technical field of motors. The casing of the motor disclosed by the utility model is provided with at least two layers of cooling flow channels distributed along the radial direction of the casing, and the adjacent cooling flow channels are communicated with each other and are used for conveying the same cooling medium in the at least two layers of cooling flow channels; each cooling flow channel comprises a plurality of sub-flow channels which are communicated with one another, and in any cooling flow channel, at least part of the sub-flow channels and the sub-flow channels of the adjacent cooling flow channel are arranged in a one-to-one correspondence mode in the radial direction of the machine shell. The scheme at least can improve the cooling performance of the motor.

The invention provides an automobile heat management system and a control method thereof. The automobile heat management system comprises a compressor, an evaporation heat exchanger, a condensation heat exchanger, a first throttling device, a first in-automobile heat exchanger, a second in-automobile heat exchanger, a vehicle-mounted refrigerator, a motor and a battery. The first in-vehicle heat exchanger can exchange heat with the evaporation heat exchanger through the cold carrying pipeline, and the second in-vehicle heat exchanger can exchange heat with the condensation heat exchanger through the cold carrying pipeline. The vehicle-mounted refrigerator can exchange heat with the evaporation heat exchanger through the cold carrying pipeline; the motor can exchange heat with the evaporation heat exchanger through the cold carrying pipeline; the battery can exchange heat with the evaporation heat exchanger through the cold carrying pipeline or exchange heat with the condensation heat exchanger through the cold carrying pipeline; the multi-way valve is provided with a plurality of connectors, and a channel for connecting and disconnecting two of the connectors is arranged in the multi-way valve. According to the vehicle-mounted refrigerator, the problems that the vehicle-mounted refrigerator is low in energy efficiency, high in cost and large in occupied space can be effectively solved.

The invention discloses a Gyandroid type three-period minimal curved surface primary surface heat exchanger based on a compression method, belongs to the technical field of heat exchangers, aims to solve the problem of optimizing a typical Gyandroid type TPMS (Tire Pressure Monitor System) to improve the heat exchange performance of the heat exchanger, and is technically characterized in that a compressed Gyandroid type three-period minimal curved surface core body is arranged in an accommodating space; a Gyandroid type three-period minimum curved surface core body is compressed and formed in any coordinate axis direction, a low-temperature working medium channel opening and a high-temperature working medium channel opening are formed in the surface of the compressed Gyandroid type three-period minimum curved surface core body, a low-temperature working medium channel and a high-temperature working medium channel are formed in the compressed Gyandroid type three-period minimum curved surface core body, and the Gyandroid type three-period minimum curved surface core body can be used for oil product cooling in the petrochemical industry. The heat exchanger has the advantages that the spanwise pressure drop is reduced, the heat exchange amount is increased, and the heat exchange effect of the heat exchanger is obviously improved through optimization.

The invention relates to the technical field of air conditioner heat exchangers, and discloses a heat exchanger assembly for an air conditioner, which realizes uniform distribution of steam at an inlet position, ensures uniform contact between the steam and a heat exchange tube subsequently, and realizes efficient heat exchange between a heat source and a cooling liquid. The baffle plates are arranged in an up-and-down staggered mode to achieve vertical S-shaped flow of steam and are arranged in a left-and-right staggered mode, the two side faces of each spoiler are inclined faces, transverse S-shaped flow of the steam is achieved, it is guaranteed that the contact area of the steam and the heat exchange pipes is larger, the heat exchange effect is good, the spoiler blocks can destroy the boundary layer of steam flow, disturbance on steam flow is increased, and the heat exchange efficiency is improved. The circulation speed during steam heat exchange is slowed down, the contact time of the steam and the heat exchange pipes is prolonged, and the heat exchange effect is further improved; and when condensate water generated after heat exchange is finished flows out, the condensate water is filtered firstly, the heat conduction pipe is prevented from being blocked, the condensate water exchanges heat with the introduced cooling liquid after entering the heat conduction pipe, preheating of the cooling liquid is achieved, and energy waste is reduced.

The invention belongs to the technical field of heat exchange equipment, and particularly relates to a double-layer coil pipe type multi-stage heat exchanger and a heat exchange method thereof.The double-layer coil pipe type multi-stage heat exchanger comprises multiple heat exchanger bodies which are sequentially connected in series, each heat exchanger body comprises an outer cylinder, an inner cylinder, a first-layer coil pipe and a second-layer coil pipe, and each outer cylinder is arranged on the outer wall of the corresponding inner cylinder in a sleeving mode and provided with a fluid inlet and a fluid outlet; a fluid inlet and a fluid outlet which are communicated are formed in the inner cylinders, the fluid outlet of the upper-stage inner cylinder is communicated with the fluid inlet of the lower-stage inner cylinder, and the first-layer coil pipe and the second-layer coil pipe are both arranged in an annular cavity formed by the outer cylinder and the inner cylinders.

The invention relates to the technical field of condensers, and discloses a high-efficiency heat exchange condenser system which comprises a mounting box and further comprises a fan arranged at the top of the mounting box, a plurality of heat exchange pipes fixedly connected into the mounting box, a plurality of spraying pipes and a plurality of water storage sleeves. The bottom of the transmission part is meshed with the stress wheel, one side of the stress wheel is attached to the transmission lead screw, the water storage sleeve is used for storing fluid, and the transmission part is impacted by fluid fluctuation, so that the multiple cleaning and scraping parts reciprocate outside the heat exchange pipe. The thickness of a water film formed by spraying water on the outer wall of the heat exchange pipe can be effectively limited through the water storage sleeve, dirt on the outer wall of the heat exchange pipe is treated through synchronous reciprocating movement of the multiple transmission lead screws, the cleanliness of the heat exchange pipe is guaranteed, the thickness of the pipe wall of the heat exchange pipe is uniform, the heat transfer efficiency of the heat exchange pipe is improved, and meanwhile the service life of the heat exchange pipe is prolonged. And the heat exchange effect of the fluid is improved.

The invention belongs to the technical field of heat exchangers, powder metallurgy sintering technology application, ultra-low temperature technology, ultra-low temperature equipment and the like, and discloses a plum blossom type silver powder sintering heat exchange sheet and a mixing chamber. The plum blossom type silver powder sintering heat exchange piece comprises a supporting framework and a silver powder sintering block, a threaded hole and a plurality of through holes surrounding the threaded hole are formed in the supporting framework, and the threaded hole is used for being matched with an installation column of the mixing chamber. The silver powder sintered blocks are formed on the two oppositely-arranged faces of the supporting framework through sintering, and the silver powder sintered blocks are provided with connecting parts filled in the through holes. According to the plum blossom type silver powder sintered heat exchange piece, the concentrated-phase or dilute-phase heliumtrihelium tetra mixed liquid and the large surface area of the silver powder sintered block have the sufficient contact condition, the heat exchange effect and the heat exchange efficiency are improved, and the plum blossom type silver powder sintered heat exchange piece is compact in structure and quite suitable for a mixing chamber of a small-refrigerating-capacity dilution refrigerating machine.

The invention discloses a structure for improving hydrogen production by alkaline electrolysis of water. The section of an electrode plate is of an oval structure, electric heating wires are evenly distributed in the electrode plate in the full-length direction of the electrode plate, and propeller blades for driving electrolyte to be in a turbulent flow state are further arranged on the inner bottom face, located at the bottom of the electrode plate, of an electrolytic bath. The electrode plate of the elliptical structure is adopted, the contact area between the electrode and the catalyst on the surface of the electrode and alkaline water is increased, the area is increased, full contact with liquid is facilitated, and bubble separation is facilitated. The thin electric heating wire is arranged in the electrode, so that the effect of forming relative high temperature on the catalyst layer on the surface of the electrode to promote the electrolytic efficiency is realized, and alkali liquor and bubbles generated on the surface of the electrode are quickly discharged. The propeller blade structure promotes alkali liquor to form a turbulent flow state, heat exchange is improved, alkali liquor flowing is promoted, generated bubbles are promoted to be rapidly separated, the contact time of an electrode and liquid is prolonged, the hydrogen production efficiency and yield are overall improved, and energy consumption is reduced.

The invention relates to the field of battery cooling equipment, in particular to a V-shaped fin liquid cooling system which comprises a liquid cooling plate, battery packs, cooling modules and heating modules, the upper surface of the liquid cooling plate is fixedly connected with the battery packs at equal intervals, and the cooling modules and the heating modules are arranged in the battery packs. A liquid inlet is formed in the outer wall surface of one end of the liquid cooling plate in a penetrating mode, a liquid outlet is formed in the outer wall of the end, away from the liquid inlet, of the liquid cooling plate in a penetrating mode, a plurality of rectangular straight flow channels are formed in the inner bottom wall of the liquid cooling plate, and the problem that a conventional liquid cooling plate cannot meet the high-discharge-rate heat dissipation requirement of a battery pack is solved; meanwhile, the power consumption of the battery pack is reduced, and electronic expansion valves of the cooling module and the heating module are controlled. The working temperature of the battery can be dynamically controlled within a proper working temperature range, when the temperature of the battery pack is proper, the thermal management system is closed, the power consumption of the battery pack is reduced by adopting natural cooling, and dynamic balance is realized.

The invention relates to a vacuum chamber for a high-altitude simulation test of a liquid rocket engine, belongs to the technical field of aerospace liquid rocket engine tests, and solves the technical problems of single function, difficulty in operation and poor safety of a traditional vacuum chamber. The cabin comprises a cabin body, a cabin door, a heat sink system, a fire fighting system, a gas replacement system, an anti-arch blasting device, a blowdown system, a mounting platform, an operation platform, a propellant supply pipeline and measurement and control equipment. The cabin body is cubic, and the working pressure in the cabin body is 0-0.1 MPa. The cabin door is used for entering and exiting of personnel, small ground equipment, an engine and a thrust measuring device. The heat sink system, the fire fighting system, the gas replacement system, the sewage discharge system, the mounting platform and the propellant supply pipeline are mounted on the cabin body, and the measurement and control equipment is a transmission channel for engine control and measurement signals. The vacuum chamber is used for a liquid rocket engine high-altitude simulation test.

The invention belongs to the technical field of chemical production, and particularly relates to a micro-channel phosphate ester production device. Comprising a micro-channel reactor, a horizontal pushing reactor and a microporous purification reactor, the micro-channel reactor comprises a reactor cylinder; a vertical micro-channel heat exchange tube is arranged in the barrel; a plurality of micro-channel reaction grooves are formed in the outer wall of the micro-channel heat exchange tube; the micro-channel reaction tank is communicated with the inner cavity of the reactor cylinder; the hydrogen chloride gas entrained with butanol generated by the invention is introduced into the microporous purification reactor to realize the separation of the hydrogen chloride gas and butanol; products and heat energy in the production process are recycled, so that the synthesis conversion rate of phosphorus oxychloride reaches 99%; meanwhile, the generation of reaction byproducts is reduced, and the purity of a main product is improved.

The invention discloses an integrated thin-wall dot matrix cooling plate and an electronic component, the integrated thin-wall dot matrix cooling plate comprises a hollow cold plate body, a cooling flow channel, a liquid inlet and a liquid outlet are arranged in the cold plate body, the liquid inlet and the liquid outlet are communicated with the cooling flow channel, the cooling flow channel is filled with a hollow heat exchange body, and the hollow heat exchange body is filled with a liquid outlet. The positions, except for the cooling flow channels, of the cold plate body are arranged to be of the hollowed-out structure, so that the whole cold plate body can achieve light weight, the hollowed-out heat exchange bodies are arranged in the cooling flow channels, the contact positions of cooling liquid and the heat exchange bodies have the larger specific surface area, and therefore the heat exchange effect of the cold plate is better.

The invention discloses a transcritical flow self-adaptive multi-stage nested structure drag reduction channel, and relates to the technical field of heat conduction and heat management. In order to overcome the technical defects that in the prior art, in an existing drag reduction and heat exchange strengthening technology, drastic changes of fluid physical properties caused by transcritical phase change in an LNG gasifier are difficult to deal with, and the efficient drag reduction effect is difficult to maintain, the technical scheme is that the drag reduction and heat exchange strengthening device comprises a flowing channel, a multi-stage nested groove structure is arranged on the inner wall of the flowing channel, the groove structure comprises a plurality of gradually-changed grooves formed in the flowing direction, and the width and the depth of the grooves are gradually changed in the flowing direction; the first-stage groove is a macroscopic groove which is processed along the inner wall of the flowing channel; the second-stage groove is formed in the first-stage groove and is a micro-scale groove; and the third-level micro-nano rough structure is arranged on the inner surface of the second-level groove and comprises micro-nano-level bulges and pits. The device is suitable for the work of drag reduction and heat exchange enhancement.

The utility model discloses heat pump equipment and a hot water heating system with the heat pump equipment, the heat pump equipment comprises a box body, a heat exchanger and a fan, and the box body is provided with an air inlet capable of sucking external air along a first direction; the heat exchanger is arranged in the box body and divides the interior of the box body into an air inlet cavity and an air outlet cavity, and the air inlet communicates with the air inlet cavity; the fan is arranged in the air outlet cavity, an air guide plate is arranged on the side, close to the heat exchanger, of the fan, an air suction opening is formed in the air guide plate, and a static pressure cavity is defined between the air guide plate and the heat exchanger; the heat exchanger is obliquely arranged relative to the air suction direction of the air suction opening, and in the first direction, the distance between the heat exchanger and the air guide plate is gradually increased. According to the utility model, the wind field uniformity in the heat pump equipment can be effectively improved, so that air can flow through the heat exchanger more uniformly to improve the heat exchange effect.

The invention relates to the technical field of heat exchange, in particular to a heat exchanger based on bamboo joint type enhanced heat exchange and a heat exchange method.The heat exchanger comprises a heat exchanger body, and a water inlet pipe and a water outlet pipe are arranged on the heat exchanger body; the filtering structure is in sealed sliding connection with the water inlet pipe, and two groups of filtering positions are arranged on the filtering structure; the energy storage assembly is connected with the filtering structure, the energy storage assembly is matched with a top plate arranged on the heat exchanger body, and one set of filtering positions can be coaxial with the water inlet pipe; and the power assembly is arranged on the top plate, and the power assembly is matched with a third convex shaft arranged on the energy storage assembly and can drive the energy storage assembly to act, so that switching of the two filtering positions is achieved, and the circulation speed and the heat exchange efficiency of heat exchange fluid are improved.