327results about How to "Improve heat exchange efficiency" patented technology

The utility model discloses super-strong steel chemical degreasing powder drying equipment, and relates to the technical field of drying equipment. The device comprises a drying assembly, and an inner cavity of the drying assembly is fixedly connected with a mixing assembly. The heating blocks embedded in the inner wall of the drying box are distributed in an annular array mode, oil removing powder in the drying box can be heated in a full-surrounding mode, compared with traditional bottom or single-side heating, the uniformity of a temperature field in the box is remarkably improved, and the problem of component decomposition or low-temperature caking caused by local overheating is solved; when the planetary gear stirring piece drives the auxiliary stirring rod to revolve around the first transmission shaft, rotation is achieved through meshing of the driven gear and the driving gear ring, and a three-dimensional stirring track of revolution and rotation is formed; the up-down reciprocating piece pushes the main stirring rod to do periodic up-down motion through the cam, so that materials are subjected to transverse shearing mixing and longitudinal stirring in the drying process, the material accumulation dead angle is effectively broken, and the heat exchange efficiency is improved.

The utility model relates to the technical field of heating equipment, and provides a heating device. The heating device comprises a box body, an air blowing component and a heat exchange assembly. Wherein a cavity is formed in the box body, an air outlet is formed in one end of the box body, an air inlet is formed in the other end of the box body, and the air outlet and the air inlet are both communicated with the cavity; the air blowing component is arranged in the cavity and used for forming air flow in the cavity, and the air flow flows from the air inlet to the air outlet; the heat exchange assembly is arranged in the box body and used for conveying heat in the warm air into the cavity. A first cover body is arranged at the air outlet and is used for blocking the air outlet; the air inlet is provided with a second cover body which is used for blocking the air inlet. According to the utility model, the defect that the heating equipment for directionally controlling the warm air in the prior art cannot utilize heat in the warm air is overcome, and the heating equipment which can utilize the heat in the warm air and can directionally and centrally control the flow direction of the warm air is realized.

The utility model relates to the field of bath heaters, in particular to a novel bath heater which comprises a main machine and a cover plate, the cover plate is arranged at the upper end of the main machine, the main machine comprises a box body, an air inlet assembly, an air exhaust assembly and a PTC heating assembly, the air inlet assembly sucks indoor air, the air exhaust assembly and the PTC heating assembly are arranged in the box body, and the air is heated by the PTC heating assembly and then blown into a room through the air inlet assembly. The exhaust assembly exhausts indoor air to the outside, the PTC heating assembly comprises a shell and a PTC module, the PTC module is arranged in the shell, the shell is installed on the inner side of the cover plate, the widths of the two ends of the section of the shell are gradually decreased upwards, staggered reinforcing ribs are arranged on the end face of the shell, and the PTC module is arranged in the shell. The upper middle part of the cover plate is provided with a mesh enclosure which corresponds to the air inlet assembly and the exhaust assembly and is provided with a barrier strip, the rear side of the middle part of the cover plate is provided with a cavity for accommodating a wiring module, the outer side of the cavity is buckled with a wire outlet cover, and two ends of the wire outlet cover are provided with wire outlet holes.

The utility model belongs to the technical field of cooling towers, and particularly relates to a cooling tower splash-proof filler which comprises a fixed box and a filler body arranged in the fixed box, and further comprises a flow guide cover fixed at the top end of the fixed box and a flow guide plate arranged in the flow guide cover by utilizing a buffer assembly, a plurality of flow guide holes which are distributed at equal intervals are formed in the flow guide plate, and the buffer assembly comprises a fixing frame which is fixed in the flow guide cover; the guide column penetrates through the fixing frame, and the flow guide plate is fixed to the top end of the guide column; the telescopic spring is arranged on the guide column in a sleeving manner and is positioned between the flow guide plate and the fixed frame; through the design of the buffer assembly and the guide plate, the water flow impact speed is reduced, splashing caused by vertical impact is reduced, the water distribution plate is matched to uniformly distribute water, the water film coverage area is increased, water drops are prevented from quickly passing through the filler, and the heat exchange efficiency is improved.

The invention discloses a flat pipe, a heat exchanger, a vehicle heat management system and a vehicle, and belongs to the technical field of vehicle heat management. The flat pipe forms a first flow channel and a second flow channel which are separated and arranged side by side, the first flow channel is suitable for circulation of a first heat exchange medium, and the second flow channel is suitable for circulation of a second heat exchange medium. Through the partition integrated design of the first flow channel and the second flow channel, the overall structure of the flat pipe is simplified, the overall heat resistance is reduced, and the heat exchange efficiency is greatly improved, so that the heat management effect of the vehicle heat management system is optimized, meanwhile, the machining difficulty and machining cost of the flat pipe are reduced, and the production efficiency is improved. Therefore, large-scale production and popularization and application are facilitated.

The application discloses a die-casting device for window sliding wheel machining, which comprises an operating machine table arranged on the ground, a die-casting base fixedly arranged at the middle of the bottom of the inner cavity of the operating machine table, and a limiting guide rod fixedly arranged at the top of each corner of the die-casting base, and belongs to the technical field of die-casting. The die-casting device for window sliding wheel machining is characterized in that the upper die, the hydraulic rod, the lower die mechanism and the electric telescopic rod are matched to realize efficient and stable die-casting. During die-casting, the structures are cooperatively driven to automatically circulate and flow the cooling liquid, the cooling and shaping are rapidly completed, the processing efficiency is effectively improved, the circulating cooling liquid can drive the inside of the lower die mechanism to generate high-frequency oscillation, the internal bubble defects of the casting are eliminated, the product structural strength and surface quality are improved, meanwhile, the cooling liquid is uniformly disturbed in the die to improve the heat exchange efficiency, the temperature of the cavity is rapidly and evenly balanced, the deformation and cracking of the casting are prevented, the forming precision and product qualification rate are ensured, and the overall structure is simple, stable and reliable in operation.

The utility model discloses a liquid cooling plate which comprises an upper cover plate and a lower cover plate, and a main flow channel is formed between the upper cover plate and the lower cover plate; the water inlet nozzle is communicated with the water inlet of the main flow channel and is used for allowing a refrigerant to flow in; the water outlet nozzle is communicated with a water outlet, corresponding to the water inlet, of the main runner and is used for allowing a refrigerant to flow out; the heat exchange columns are arranged in the main flow channel, and the densities of the heat exchange columns in different areas in the main flow channel are different. According to the liquid cooling plate, the plurality of heat exchange columns are arranged, so that the structural strength of the liquid cooling plate can be enhanced, the contact area between a refrigerant and the flow channel wall can be increased, and the heat exchange efficiency is improved. Besides, the heat exchange columns with different densities are arranged in different areas, so that the flow distribution of the refrigerant in the flow channel can be optimized, the refrigerant is uniformly distributed, and the uniformity of the heat dissipation performance of the liquid cooling plate is improved.

The utility model discloses an axial flow heat radiation servo motor, comprising a casing provided with a cover, the cover is provided with a plurality of air holes, and the casing is rotatably connected with a rotating shaft; the stator assembly is in a circular ring shape and is connected into the machine shell. The rotor assembly is connected to the rotating shaft, the stator assembly surrounds the rotor assembly, and an annular air gap is formed between the rotor assembly and the stator assembly; and the cooling fan comprises an end seat and a plurality of fan blades, the end seat is in a circular ring shape, the end seat is connected to the end part of the rotor assembly, all the fan blades are distributed along the circumferential surface of the end seat, the fan blades are overlapped with the air gaps, the fan blades are overlapped with the air holes, the fan blades are bent towards the extension direction of the rotating shaft, and the fan blades are in central symmetry about the rotating surface of the end seat. The heat dissipation device is compact and reliable in structure, heat dissipation cost can be effectively saved, pertinence of fan blade operation heat dissipation is high, the energy utilization rate is high, heat dissipation efficiency is high, operation stability is high, and stable heat dissipation under the bi-directional rotation working condition can be guaranteed.

The utility model discloses an unmanned vehicle line control chassis high -efficient heat dissipation structure relates to vehicle chassis equipment technical field, is provided with the heat dissipation portion on the chassis, the heat dissipation portion is provided with a plurality of mutually parallel heat dissipation grating, and the inner airflow passage is formed between two adjacent heat dissipation grating, is provided with a plurality of mutually parallel heat dissipation fin on the upper end surface of a plurality of heat dissipation grating, and the outer heat dissipation passage is formed between two adjacent heat dissipation fins, and the interval between two adjacent heat dissipation grating is less than the interval between two adjacent heat dissipation fins, the heat dissipation fin upper edge contour line is extended from both sides to the center symmetry, and one side contour line section includes side horizontal section, large angle drop section, small angle rise section, central horizontal section in proper order, and the scheme simple structure can be high -efficient heat dissipation under the scene such as static parking, low -speed driving, high -speed operation etc.

This invention discloses a liquid-cooled heat dissipation chip structure and its packaging method, relating to the field of chip technology. The liquid-cooled heat dissipation chip structure includes: a chip with accommodating channels formed therein, and coolant filled into the accommodating channels; a substrate, on which the chip is packaged; and a cooling fan mounted on the side of the chip away from the substrate. This invention solves the problem of chip overheating leading to decreased chip computing performance and slowed data processing speed.

This utility model relates to an embedded water tank mechanical agitation and scraping powdery material cooler, belonging to the technical field of powdery material cooling devices. The aim is to provide an embedded water tank mechanical agitation and scraping powdery material cooler with a large heat exchange area, high efficiency, and good cooling effect on powdery materials. The technical solution adopted is as follows: multiple cooling water tanks and a mechanical agitation device are installed inside the tank. The structure of the mechanical agitation device is as follows: a horizontally positioned main shaft is rotatably installed in the upper part of the tank, and a lower shaft is parallel to and below the main shaft. The main shaft is connected to the lower shaft through at least two sets of chain drive components. Multiple long, strip-shaped scraper frames are fixed at intervals around the circumference of the chain drive components, and multiple scrapers are fixed on each scraper frame. Multiple cooling water tanks are arranged in two rows on both sides of the main shaft and the lower shaft. The multiple scrapers on the scraper frames correspond to and are inserted into the gaps of the cooling water tanks. This utility model is used for rapid cooling of high-temperature powdery materials.

The utility model discloses a radiator, which relates to the radiator field, and comprises a support main body and a heat radiation assembly, the support main body comprises at least one support column, the support column extends along a first direction, and the first end of the support column is used for being connected with an external heat source; the heat dissipation assembly comprises a plurality of heat dissipation fins, the multiple heat dissipation fins are arranged outside the supporting body in a sleeving mode and distributed at intervals in the first direction, and at least one heat dissipation hole penetrates through each heat dissipation fin; wherein the support main body and the radiating fins are diamond aluminum alloy composite parts respectively; thus, the supporting body and the cooling fins have high thermal conductivity, the thermal conductivity can reach 400 W / (m.K) or above, the high-temperature resistance is improved to 600 DEG C, and the phenomenon of oxidation and falling is avoided, so that the reliability and durability of the radiator under complex working conditions are improved, and the lightweight design of the radiator is facilitated; at least one radiating hole penetrates through the radiating fin, so that the radiating area is increased, and the weight is further reduced; meanwhile, the multiple cooling fins are arranged at intervals, the heat exchange efficiency can be improved, and then the cooling efficiency is improved.

The utility model relates to drying device technical field, including drying cylinder, the coaxial support net cylinder of being fixed with in drying cylinder, the inside wall of support net cylinder inserts the filter cartridge that is consistent with it, and forms material drying area through filter cartridge inner chamber, forms drying gas flow discharge area between filter cartridge outer wall and drying cylinder inner wall, and the material drying area is vertically rotated and is equipped with cloth gas cylinder, and the outer wall of cloth gas cylinder is evenly distributed with a plurality of cloth gas hole, and the outer wall of cloth gas cylinder inserts the blocking net piece that covers cloth gas hole. The utility model overcomes the problem that wet eight bromine ether material particle in traditional technology exchanges heat with drying gas flow, is limited to the distribution structure limitation of drying gas flow, makes drying gas flow not to be able to contact with wet eight bromine ether material particle evenly, and further reduces drying efficiency.

The application belongs to the technical field of thermal error compensation, and discloses a non-metal supporting piece numerical control machine tool thermal error compensation method, which comprises the following steps: S1: when the equipment main body is working, the temperature of the equipment main body is monitored in real time through a temperature sensor, and when the temperature reaches a certain threshold value, a pump, a first motor and a second motor are started through an external power supply; S2: the start of the pump enables the cooling liquid to circulate in the cooling cavity and the conveying cavity, and the whole equipment main body is cooled and circulated, so that thermal error compensation is performed; the temperature of the equipment main body is monitored in real time through the temperature sensor, and when the temperature of the equipment main body reaches a certain threshold value, the cooling liquid can be circulated in the cooling cavity and the conveying cavity through the start of the pump, the whole equipment main body is cooled and circulated, and thermal error compensation is performed.

The application relates to the technical field of heat exchangers, and discloses a self-supporting plate-fin energy-saving heat exchanger which comprises an outer frame, a heat exchange cavity is formed in the inner part of the outer frame, and a plurality of pairs of positioning frames are vertically arranged in the heat exchange cavity. The wave-shaped positioning frames generate longitudinal vortexes when fluid flows through the wave crests and wave troughs, the fluid boundary layer on the surface of the heat exchange pipes is destroyed, and the thermal resistance is reduced; adjacent V-shaped heat dissipation fins make the fluid accelerate and collide at the included angle, secondary turbulent flow is formed, the contact area is enlarged from the micro level, and the heat diffusion is accelerated; the double effects of macro vortex flow and micro turbulent flow greatly improve the heat exchange efficiency compared with the conventional structure, the heat transfer can be realized more quickly and more fully under the same working condition; meanwhile, the heat dissipation fins have the angle-adjusting function, the angle of the fins is adjusted, the dynamic switching of energy saving and high efficiency is realized, and the equipment can flexibly adapt to complex working conditions with different flow rates and temperature differences.

The utility model relates to building energy -conserving equipment technical field, and disclose a kind of green building surface cooling device, including building outer wall, the outer surface of building outer wall is attached cooling plate installation, another side of cooling plate is corrugated cooling surface, the corrugated cooling surface multiple protruding parts and recessed parts, protruding part and recessed part are alternately arranged.The green building surface cooling device, innovation uses bionic corrugated cooling surface structure, by the protruding part and recessed part of alternate arrangement, make cooling area compared with traditional plane structure increase, substantially enhance the heat exchange efficiency with outside air, at the same time, cooling surface coating nanometer titanium dioxide intelligent coating, utilize photocatalytic principle to realize more than 90% solar radiation reflectivity, form the double protection system of " passive heat insulation + active heat dissipation", effectively block outside heat to enter building interior, significantly reduce air conditioning system operating load, realize building energy saving and consumption reduction truly.

The invention relates to the technical field of gas pressure reduction, in particular to a two-stage pressure reducer which comprises a valve body formed by connecting a main body and an aluminum upper cover in a threaded mode, and further comprises a gas source connecting mechanism arranged at a gas inlet in the main body and configured to be connected with an external gas source and filter entered gas; the two-stage pressure reduction mechanism is arranged in the gas source connecting mechanism and the parent body and is used for performing two-stage pressure reduction on the entering gas; the gas outlet mode of the flow meter is an OUT mode, and the flow meter is fixedly installed at the end of the main body through an adapter and is configured to display the flow of output gas; the gas flow channel is arranged in the parent body and is configured to introduce the gas subjected to two-stage pressure reduction into the flow meter and prolong the flow path of the gas in the parent body, so that the gas exchanges heat with the parent body before flowing into the flow meter; according to the gas pressure reducer, the gas flow channel is formed in the parent body, and the problem that gas is frozen when an existing gas pressure reducer works for a long time or is in a low-temperature environment is ingeniously solved.

The utility model discloses a double shaft premixing ware for ammonium chloride rotary drying furnace, include: casing, be provided with heating heat preservation device on the casing, drive arrangement and double shaft mixing device, set up in the casing, and drive arrangement drives double shaft mixing device rotation, double shaft mixing device includes: driving shaft, axially set up in the casing, and the axle head is rotatably connected with the inside of casing, driven shaft, axially set up in the casing, and with driving shaft parallel, and the axle head is rotatably connected with the inside of casing, and synchronous gear, install in the axle end of driving shaft and driven shaft. The utility model can solve the problem of uneven mixing of ammonium chloride material, easy to block and high energy consumption fundamentally.

The utility model relates to the technical field of electric control box heat management, in particular to an electric control box with a heat dissipation structure. The electric cabinet with the heat dissipation structure comprises a shell, a flow equalizing plate and an air deflector. Wherein the shell is provided with a containing cavity, an electronic element is arranged in the containing cavity, and an air inlet is formed in the shell. The flow equalizing plate is arranged in the shell, and a plurality of through holes are formed in the flow equalizing plate. The air guide plate is arranged in the shell, an air channel is formed between the air guide plate and the flow equalizing plate, and the flow equalizing plate is located between the containing cavity and the air channel; the air channel is communicated with the containing cavity through the through hole, and the air channel is communicated with the air inlet. The air guide plate is provided with a plurality of step portions, the air channel is provided with a near-end area and a far-end area, the near-end area is close to the air inlet, air flow in the air channel flows to the far-end area from the near-end area, and the distance between the step portions and the flow equalizing plate is gradually decreased in the direction from the near-end area to the far-end area. The heat dissipation uniformity of the electric cabinet with the heat dissipation structure can be improved, and the heat dissipation performance is improved.

The application belongs to the technical field of household appliances, and particularly relates to a fan rotating speed control method and a heat pump equipment. The fan rotating speed control method provided by the application comprises the following steps: obtaining suction temperature T s of a compressor suction port of a heat pump air conditioner, defrosting temperature T ev of an evaporator of the heat pump air conditioner, and liquid pipe temperature T li of a pipeline between a condenser and an expansion valve of the heat pump air conditioner; when the heat pump air conditioner is in a heating mode or a cooling mode, the running rotating speed of a fan is adjusted according to at least two of the suction temperature T s , the defrosting temperature T ev , the liquid pipe temperature T li , a running frequency f nom of the compressor of the heat pump air conditioner, and a maximum running frequency f max . The fan rotating speed control method and the heat pump equipment provided by the application reduce the energy consumption of the heat pump air conditioner.

This invention discloses an industrial control board testing device, comprising: an insulated box with an inlet and a second conveyor belt; a first conveyor belt disposed on the outer side of the second conveyor belt away from the insulated box; a testing unit disposed above the feeding section of the first conveyor belt; a cylinder mounted on the side of the first conveyor belt opposite to a transition plate; a strip-shaped baffle disposed on the side of the second conveyor belt opposite to the transition plate; a first guide plate and a second guide plate disposed on the side of the strip-shaped baffle opposite to the first conveyor belt and above the second conveyor belt; and a guide portion formed at the other end of the second guide plate that is inclined toward the second conveyor belt opposite to the first guide plate. This invention can quickly screen out defective products based on the test results through the cooperation between the testing unit and the cylinder, and can also achieve stable connection and high-precision transport of good products, facilitating the direct feeding of good products into the insulated box for high and low temperature testing, thus improving testing efficiency.

The utility model discloses a continuous drainage device with a flash steam recovery function, and relates to the technical field of flash steam recovery. The device comprises a shell, a flash steam recovery assembly and a waste heat utilization assembly, a partition plate is fixedly connected between the two sides of an inner cavity of the shell, a drain valve is fixedly connected to the top of the partition plate, the flash steam recovery assembly comprises a temporary storage tank, and the left side of the temporary storage tank is communicated with a water outlet of the drain valve. According to the utility model, through the flash steam recovery assembly, condensate water is temporarily stored by using the temporary storage tank and conveyed to the flash tank, the condensate water is depressurized through the flash tank to separate flash steam, and then the flash steam is conveyed to the steam compressor through the steam compressor air supply pipe to be pressurized; the steam can enter a heating system again to be recycled, heat waste caused by direct discharge of the steam is reduced, meanwhile, formation of a local high-humidity environment is avoided, the risk that oxidation corrosion of a pipeline and a supporting structure is accelerated due to the humid environment is reduced, and the service life of equipment is prolonged.

This utility model discloses a cooling device for precipitation of phenylhydrazine hydrochloride mother liquor, comprising a refrigeration compressor, an oil separator fixedly connected to the output end of the refrigeration compressor, an evaporative condenser fixedly connected to the main outlet of the oil separator, an auxiliary ammonia storage tank fixedly connected to the outlet of the evaporative condenser via a first pipeline, an ammonia tank fixedly connected to the outlet of the auxiliary ammonia storage tank via a second pipeline, a shut-off valve installed at the connection between the ammonia tank and the second pipeline, and a thin-film evaporator fixedly connected to the outlet of the ammonia tank via a third pipeline. The main outlet of the thin-film evaporator is fixedly connected to a brine tank. Through the above structure, a buffer system is formed by the interlocking of the ammonia tank, the auxiliary ammonia storage tank, and the double shut-off valves, which can quickly isolate the ammonia source in case of emergency shutdown. In addition, the use of a closed-loop system with a low-temperature brine medium can effectively reduce energy consumption, thereby preventing the waste of cooling capacity caused by intermittent production.

The utility model discloses a secondary cooling carrier roller device which comprises a supporting frame, a cold roller assembly and a cooling assembly. A hollow roller shaft is sleeved with a sleeve, the inner wall of the sleeve is connected with a V-shaped oil storage pipe through a fixing plate, and the middle of the oil storage pipe is communicated with a connecting ring pipe and an oil conveying pipe. Labyrinth plugging blocks and built-in spring rods are arranged at the two ends of the oil storage pipe, and the top ends of the spring rods are connected with guide slopes with plugging pieces. Bearings and labyrinth plates are arranged on the two sides of the sleeve, heat dissipation bent grooves are formed in the outer side of the hollow roller shaft, and the rotating pipe is connected with the water sump and the water pipe. The device realizes automatic supply of lubricating oil through rotating centrifugal force, and guides the inclined plane to accurately guide the lubricating oil to the bearing; heat exchange is enhanced by winding airflow and the heat dissipation bent grooves, and the cooling efficiency is improved by a water circulation system; and the labyrinth plate obstructs external impurities. The self-adaptive lubricating device has the advantages of self-adaptive lubrication, efficient heat dissipation, reliable sealing and the like, oil consumption can be reduced, the service life is prolonged, and the maintenance frequency is reduced.

The invention discloses an oil cooler space ring and a high-precision manufacturing method thereof.The oil cooler space ring comprises an annular body, an oil through hole is formed in the center of the annular body, four positioning bosses are evenly distributed at one end of the annular body in the circumferential direction, and a first sealing groove is formed in the peripheral face of the annular body; a second sealing groove is formed in the inner circumferential face of the annular body, a thread auxiliary groove is formed in the oil through hole, a flow guide groove is formed in the end, away from the positioning boss, of the annular body and distributed in a spiral shape, the positioning boss is used for axial positioning and circumferential positioning of the space ring in the oil cooler, and the assembly precision is guaranteed. The flow guide grooves are formed in the end face of the annular body and distributed in a spiral shape, the number of the flow guide grooves is six, the spiral flow guide grooves can guide a cooling medium to form ordered spiral flow on the surface of the space ring, the contact area of the cooling medium and the space ring is increased, the contact time of the cooling medium and the space ring is prolonged, and therefore the heat exchange efficiency is improved.

The utility model relates to the technical field of spiral spray guns, and particularly discloses a hot melt adhesive spiral spray gun which comprises a gun body, an air flow heating cavity, an air inlet, an air guide hole, a cavity sealing piece and an electrical bar are arranged at the bottom of the gun body, the electrical bar is used for heating air flow entering the air flow heating cavity, and the air flow heating cavity is composed of a plurality of bent channels; the glue spraying valve is connected and mounted on the gun body through a screw, a through hole is formed in the center of the glue spraying valve, and a coaxial two-stage threaded seat, a nozzle, a biconical valve core and a gas guide sleeve are sequentially arranged at the bottom of the glue spraying valve; by means of the conical matching structure of the air guide sleeve and the nozzle and the design of the air guide groove, a stable spiral airflow field is formed, spiral rubber threads with the width as low as 3 mm can be sprayed in combination with control over flowing of rubber liquid through the double-conical valve element, the rubber threads are evenly and continuously distributed, and the spraying effect is good. And the narrow bonding requirements of paper bag sealing, bonding of a wet locking cover and a packaging box and the like are met.

The utility model discloses a heat conduction pipe provided with a heat dissipation core, and belongs to the technical field of heat conduction and heat dissipation. The heat conduction pipe provided with the heat dissipation core comprises a pipe body, a plurality of heat dissipation fins are arranged on the outer side of the pipe body, connecting pipes are installed at the two ends of the heat dissipation fins and the two ends of the pipe body, and connecting discs are installed on the outer sides of the connecting pipes. The heat dissipation mechanism comprises a center shaft, a heat dissipation core is installed on the outer side of the center shaft and is of a spiral structure, the outer side of the heat dissipation core is fixedly connected with the inner side of the pipe body, the multiple heat dissipation fins are distributed at equal intervals and are in a wave shape, the heat dissipation fins and the pipe body are integrally formed, and multiple flow guide holes are formed in the surface of the heat dissipation core; according to the utility model, the contact area and the retention time of a heat transfer medium and the heat dissipation core can be effectively increased, the transfer efficiency of heat in the pipe body is greatly improved, and the heat dissipation pipe has higher practical value.

The utility model relates to the technical field of energy conservation and emission reduction, and discloses a natural gas energy conservation and emission reduction device which solves the problem that heat contained in natural gas tail gas is not fully utilized, water flow enters a heat exchange box from a water inlet pipe, meanwhile, the natural gas tail gas enters a first bifurcated pipe from a gas inlet pipe, and the heat in the first bifurcated pipe is fully utilized. According to the heat exchange device, the contact area with water is preliminarily increased, then natural gas tail gas enters the multiple heat exchange pipes from the first branch pipe, the contact area with the water in the heat exchange box is greatly increased through multi-stage flow division and arrangement of the heat conduction plates, and then the heat exchange efficiency is improved; the retention time of the tail gas of the natural gas in the heat exchange pipe is greatly delayed, the tail gas of the natural gas and water in the heat exchange box are subjected to sufficient heat exchange operation, and high efficiency and energy conservation are achieved.

This utility model discloses a cooling device for an electrically heated lithium battery material tunnel kiln, belonging to the field of tunnel kiln cooling technology. It includes a frame, an insulation layer, a track, multiple saggers, and a kiln car. The insulation layer is disposed on the inner wall of the frame. The track is disposed at the bottom of the frame along the length of the tunnel kiln. The kiln car is rotatably connected to the track. The multiple saggers are spaced apart on the kiln car. It also includes cooling pipes, a liquid supply pipe, a liquid discharge pipe, a liquid cooling station, and a circulation tower. The end of the cooling pipe is connected to the top of the frame and extends into the gap between the multiple saggers. Both ends of the liquid supply pipe are connected to one end of the cooling pipe and the liquid cooling station, respectively. Both ends of the liquid discharge pipe are connected to the other end of the cooling pipe and the circulation tower, respectively. The cooling pipes can be evenly distributed on both sides of the saggers, ensuring uniform material cooling and high consistency in material forming.

This utility model discloses a novel refrigerator, including a cabinet body and a door. The cabinet body includes an outer shell and an inner liner, with the inner liner located within the outer shell. A cover is connected to the lower back of the outer shell, forming an installation chamber between the cover and the outer shell. A refrigeration system is installed in the installation chamber, and the refrigeration system includes a return air pipe located between and close to the inner liner and the outer shell. A foam layer made of polyurethane foam material fills the space between the inner liner and the outer shell. The inner liner is made of ABS plastic, and the outer shell is made of galvanized steel sheet. This novel refrigerator, with its galvanized steel outer shell and ABS inner liner combined with a polyurethane foam layer, enhances the structural strength and insulation of the cabinet, reducing cold air leakage. The return air pipe is equipped with a heat-conducting pipe and a heat-conducting plate to improve heat exchange efficiency. The heat from the return air pipe evaporates water from the collection box, eliminating the need for manual drainage and aiding in cooling. Overall, it achieves efficient refrigeration, convenient maintenance, and a superior storage experience.