522results about How to "Small temperature difference" patented technology

The invention discloses an injection molding process for a plastic part of an air purifier, and relates to the technical field of injection molding processes. Multi-area dynamic mold temperature adjustment is performed, a plurality of temperature control areas are divided according to the thin wall and curved surface structure characteristics of the plastic part, the temperature is adjusted in real time, stress concentration and deformation are remarkably reduced, and the service life of the plastic part is prolonged. The problem of shrinkage stress of a thin-wall area is solved in a targeted mode, cooling of a thick area is accelerated, meanwhile, real-time temperature control and deformation compensation are controlled in a linkage mode, the temperature and the cooling rate are dynamically adjusted according to deformation data monitored in real time, and the deformation trend is predicted, so that pre-deformation compensation is provided, warping of the thin-wall area and the curved surface area is controlled, and deformation of the thin-wall area and the curved surface area is controlled. The stability of the plastic part in the forming process is kept, and the product precision is improved; in addition, simulation prediction and mold parameter adjustment are carried out, cooling requirements of different areas are adjusted, the temperature difference between the thin wall and the curved surface area is reduced, and the whole cooling process is more efficient.

The invention relates to the technical field of photovoltaic energy storage cabinets, in particular to a safety type photovoltaic energy storage cabinet. Comprising an outer shell, a plurality of inner shells are fixedly connected in the outer shell, battery packs are detachably and fixedly connected in the inner shells, cooling fans which are symmetrically distributed are arranged outside the outer shell, each inner shell is provided with two cooling row holes which are symmetrically distributed, and the inner shells are slidably connected with two plugging frames which are symmetrically distributed. The two plugging frames on the inner shell are jointly provided with a connecting frame, the inner shell is fixedly connected with a sliding rail, an electric sliding block is slidably connected into the sliding rail, and the electric sliding block of the sliding rail is fixedly connected with the adjacent connecting frame. According to the invention, the temperatures of the plurality of battery packs during charging are respectively detected, and heat dissipation of different degrees is carried out according to different temperatures of the plurality of battery packs, so that the plurality of battery packs are at proper temperatures, cooling resources are allocated as required, energy is saved, and operation cost is reduced.

According to the energy storage coupling heat pump steam generation method and system, the mode that the heat pump device and the energy storage device cooperatively operate is adopted, and efficient and economical steam supply is achieved. The method comprises the steps that high-temperature water is prepared and stored in the off-peak electricity period through the heat pump device, and the high-temperature water is further heated through the energy storage device to generate superheated steam for a user to use. The energy storage device comprises a plurality of energy storage modules, and a heat exchange pipeline of the energy storage device can be switched between a parallel connection mode and a series connection mode through switching, so that deep heat release and flexible regulation and control are achieved. According to the method, the energy storage capacity and heat release power of the energy storage module are dynamically adjusted, enthalpy increment distribution of the heat pump and the energy storage device is optimized in combination with load prediction, and diversified steam requirements are met. And meanwhile, preheating or dynamic supplement is conducted on the energy storage module through the heat pump device, waste heat recovery is achieved, and the energy efficiency is improved. According to the method, the operation cost is remarkably reduced, the capacity of the system for adapting to load fluctuation is enhanced, and the method is suitable for industrial steam use scenes and has the advantages of being efficient, stable and flexible.

The invention discloses a method for improving the cooling effect of a pole winding based on a mixed-flow fan, and belongs to the technical field of cooling of high-rotating-speed and high-capacity hydraulic generators and pumped storage generator motors. Mixed-flow fans are arranged at the two ends of a magnetic yoke, and cooling air is divided into radial cooling air for cooling coils at the ends of the magnetic poles and axial cooling air entering the outer surfaces between the magnetic poles. An interelectrode outer surface ventilation cooling space is formed between every two adjacent pole windings, interelectrode ventilation partition plates which are axially arranged are arranged in the interelectrode outer surface ventilation cooling spaces, and separated axial ventilation air channels are formed by the interelectrode ventilation partition plates and the outer surfaces of the pole windings; therefore, rotor pole winding cooling of a high-rotating-speed and high-capacity hydro-generator and a pumped storage generator motor in which radial ventilation cooling cannot be adopted in a pole winding interelectrode area is ensured, and the problem that the difference between the cooling effects of the windward side and the leeward side of a traditional structure is large is solved.

The invention belongs to the technical field of battery system fire protection, and particularly relates to a battery pack liquid cooling plate runner structure with fire protection and a method thereof, the structure comprises a liquid cooling plate, a fire protection structure is fixedly mounted at the top of the liquid cooling plate, and a heat exchange structure is arranged at the top of the liquid cooling plate and far away from the fire protection structure; the fire fighting structure comprises a fire fighting intervention flow channel, the fire fighting intervention flow channel is formed in an inner cavity of the liquid cooling plate, the top of the liquid cooling plate communicates with a fire fighting liquid inlet pipe, branch flow channels are formed in the inner surface of the fire fighting intervention flow channel, and fire fighting medium spraying holes are formed in the inner surfaces of the branch flow channels. According to the battery pack liquid cooling plate flow channel structure with the fire protection function and the method thereof, the fire protection pipe is inserted into the fire protection liquid inlet pipe, then the combined battery packs are stacked into a battery cabinet, and when the battery packs emit heat, heat is exchanged through flowing of cooling liquid, so that the temperature difference of the battery packs is smaller, the temperature rise is lower, and the service life of the whole battery pack is prolonged; and meanwhile, when the temperature of a single battery pack is abnormal, cooling can be performed immediately.

The friction stir welding device based on battery shell manufacturing comprises a welding table, a positioning mechanism, a welding mechanism and a cooling mechanism, the welding table is provided with a material containing plane used for containing a plate, the positioning mechanism fixes the plate, the welding mechanism comprises a rotating part and a stirring part, the rotating part is controlled to move and drives the stirring part to conduct welding, and the cooling mechanism is used for cooling the stirring part. The cooling mechanism comprises a shell, a liquid source and a fan, a containing space is formed in the shell and connected with the liquid inlet, the air inlet and the air outlet, the opening covers the weld joint and is attached to the surface of the plate, a plurality of partition pieces are arranged in the containing space to form a first heat dissipation flow channel, and cooling liquid and airflow are guided to flow in order. According to the friction stir welding device, cooling liquid is supplied through the liquid source, airflow is provided through the fan, local cooling gradient control over the welding seam area and the periphery is achieved, the problems of stress concentration, cracks and strength reduction caused by the too large temperature gradient are solved, meanwhile, the joint hardness recovery effect is improved, and the welding quality is optimized.

The embodiment of the utility model discloses a nano water particle bath assisting device. According to one specific embodiment, the nano water particle bath assisting device comprises a bath assisting device shell, a nano water particle generating assembly, a wind power assembly and a heating assembly. The nano water particle generating assembly comprises a water tank, a centrifugal impeller, a centrifugal impeller motor, a water pump, a water pump water inlet pipe and a water pump water outlet pipe. The centrifugal impeller motor is used for driving the centrifugal impeller to rotate; the water pump is used for conveying water pumped from the water inlet to the water tank; the wind power assembly comprises a centrifugal fan, a centrifugal fan air inlet flange, a centrifugal fan air inlet rotating valve and a ventilating duct, the ventilating duct is communicated with an air outlet of the centrifugal fan and the water tank, and a hot air heating pipe is arranged in the centrifugal fan; the bath assisting device shell is provided with a water particle air outlet, and the water particle air outlet is used for being communicated with the bath assisting bin so as to provide water particles into the bath assisting bin. According to the embodiment, the probability of disease attack of the bather can be reduced, and the safety of the bather is improved.

The invention discloses a thin-layer high-density filler which is prepared by combining an optimized weaving method, weaving density and a bundling mode on the basis of a plain woven wire mesh filler. The novel weaving method enables the weft number of the thin-layer high-density filler to be larger than that of plain woven wire mesh filler under the condition of the same warp number, and the thin-layer high-density filler has the characteristics of high specific surface area, high mass transfer efficiency, low flow pressure drop and the like. A large number of micropores exist on the surface of the thin-layer high-density filler, the wettability is extremely good, the transverse diffusion effect of liquid in the filler can be greatly enhanced due to the fact that the weft density is large, the performance is particularly outstanding in the processes of large-spraying-density rectification and the like, and the pressure drop is about 30%-50% lower than that of a common plain woven filler. The filler provided by the invention mostly adopts stainless steel wires as raw materials, and has the advantages of low cost, large flux, stable performance and low metal exudation rate, so that the filler is difficult to replace in the field of heat pump rectification, high-purity electronic chemical separation, intermediate separation and isomerism separation production.

The invention discloses a Carnot battery system based on a cross-seasonal energy storage technology and a control method, and the Carnot battery system comprises a cascade heat pump unit, a buried pipe heat storage unit, an organic Rankine cycle unit and a renewable heat source utilization energy storage unit, when the temperature of the external environment is high in summer, heat exchange with the external environment can be conducted through the first heat removal and exchange module to provide a heat source for the second heat removal and exchange module, and heat exchange is conducted through the second heat removal and exchange module so that the temperature of a power generation fluid medium can be increased; when the external environment temperature is low in winter, a heat source can be provided for the second heat removal and exchange module through heat exchange between the first heat exchange module and the buried pipe heat storage unit, heat exchange is conducted through the second heat removal and exchange module so that the temperature of a power generation fluid medium can be increased, and the energy storage system is prevented from being affected by the external temperature; and high-efficiency operation in different seasons is ensured. The method provided by the invention solves the technical problem of low power generation efficiency in winter by utilizing environment heat exchange in the Carnot battery energy storage technology in the prior art.

The utility model provides a uniform cooling device for hot-rolled low-carbon strip steel. The uniform cooling device comprises a laminar cooling section, an aerial fog cooling section and a water replenishing cooling section which are sequentially arranged between a finishing mill group and a coiling machine, the laminar cooling section comprises a first-stage laminar cooling mechanism, a second-stage laminar cooling mechanism and a third-stage laminar cooling mechanism which are arranged in sequence; and an infrared imager for monitoring the transverse temperature of the strip steel in real time is arranged at the upstream of each stage of laminar cooling mechanism. Each stage of laminar cooling mechanism comprises four rows of cooling headers arranged side by side, one end of each cooling header is connected with a cooling water supply pipe, the other end of each cooling header is connected with two columns of gooseneck pipes, the gooseneck pipes are evenly distributed in the width direction of the low-carbon strip steel, the adjacent columns of gooseneck pipes are arranged in a staggered mode, and each gooseneck pipe is provided with an electric valve with the adjustable opening degree.

The invention provides waste gas treatment equipment and method.The waste gas treatment equipment comprises a reaction cavity, an overflow cavity and a passive rotating turbulent flow device, the passive rotating turbulent flow device comprises a conical spoiler, a spoiler support, a hollow base and base fins, the conical spoiler is used for generating turbulent flow or eddy flow when waste gas passes through the reaction cavity, and the base fins are arranged in the reaction cavity; the base fins are used for controlling the rotating speed of the whole passive rotating turbulent flow device through self rotation, so that the passive rotating turbulent flow device rotates in the reaction cavity. The rotating speed of the whole passive rotating turbulent flow device is controlled through rotation of the base fins, so that rotation of the passive rotating turbulent flow device in the reaction cavity is achieved, gas turbulence is enhanced, waste gas rotating flowing is promoted, temperature distribution is improved, the temperature difference is reduced, and therefore the treatment efficiency is improved. In addition, dust is not easy to accumulate in gas on the inner wall surface of the reaction cavity, so that regular scraper removal is not needed, and the service life of equipment is prolonged.

The pole core comprises a positive plate and a negative plate, the positive plate comprises a first current collector, a first tab, a first coating part and a second coating part, the first coating part and the second coating part are arranged on the same surface of the first current collector, the first tab is connected to the first current collector, and the first coating part is closer to the first tab than the second coating part. The first parameter of the first coating part is greater than that of the second coating part; a third coating part and a fourth coating part are sequentially arranged on the surface of the negative plate, and the first parameter of the third coating part is greater than that of the fourth coating part; wherein the first parameter is compaction density or surface density, and the first coating part and at least part of the second coating part are located in the orthographic projection of the third coating part on the positive plate. According to the lithium ion battery, the area of the negative plate always exceeds the lithium ion embedding site required by the positive electrode, so that the lithium separation risk of the pole core in the charging and discharging process is reduced.

The invention provides a four-tower reverse double-hot-trap double-effect methanol rectification energy-saving device and a process method.The four-tower reverse double-hot-trap double-effect methanol rectification energy-saving device comprises a pre-rectification tower, a vacuum rectification tower, a high-pressure rectification tower and a recovery tower which are sequentially connected, and the lower portion of the pre-rectification tower is connected with two reboilers; the lower parts of the vacuum rectifying tower and the high-pressure rectifying tower are respectively connected with a vacuum rectifying tower reboiler and a high-pressure rectifying tower reboiler; and the lower part of the recovery tower is connected with two reboilers. Wherein part of gas at the top of the high-pressure rectifying tower supplies heat to a vacuum rectifying tower reboiler, part of gas supplies heat to a pre-rectifying tower reboiler II, and a small part of top gas enters the pre-rectifying tower through a vacuum rectifying tower top vacuum injection pump and a recovery tower top vacuum injection pump to generate low pressure, so that negative pressure of the vacuum rectifying tower and the recovery tower is realized; and high-temperature wastewater produced at the bottom of the high-pressure rectifying tower supplies heat to the reboiler I of the recovery tower. Compared with the Haldor Topsoe flow process, the unit consumption of the steam for producing the refined methanol is reduced by 10-20%, and the obvious energy-saving effect of the methanol rectification flow process can be realized.

The utility model discloses a liquid cooling plate, and relates to the technical field of liquid cooling, the liquid cooling plate comprises a plate-shaped body, a cooling flow channel structure is arranged in the plate-shaped body, and the cooling flow channel structure comprises a flow channel inlet, a flow channel outlet and at least one cooling flow channel communicated between the flow channel inlet and the flow channel outlet; the cooling flow channel comprises a heat exchange flow dividing section with at least one stage of flow dividing branch channel, a heat exchange concentration section with a plurality of heat exchange flow channels and a heat exchange flow gathering section with at least one stage of flow gathering branch channel, and the heat exchange flow dividing section, the heat exchange concentration section and the heat exchange flow gathering section are sequentially arranged in a communicating mode in the flowing direction of a cooling medium in the cooling flow channel. The at least one stage of shunting branch channel can uniformly distribute a cooling medium flowing into the cooling flow channel into the plurality of heat exchange flow channels, and the at least one stage of converging branch channel can converge the cooling medium in the plurality of heat exchange flow channels to flow out of the cooling flow channel. Thus, on the basis that the heat dissipation requirements of the front-end low-heat area and the rear-end low-heat area are met, efficient heat exchange of the high-heat area is achieved, and the heat dissipation effect, energy conservation and consumption reduction are both considered.

The utility model belongs to the technical field of energy storage cabinets, and relates to an air-cooled heat dissipation device of an air-cooled energy storage cabinet, which comprises an energy storage cabinet, a cabinet door, a special-shaped direct-connection air duct and an in-cabinet air guide box, an air inlet of the special-shaped direct-connection air duct is butted with a cold air outlet on the inner wall of the cabinet door, and an air outlet of the special-shaped direct-connection air duct is butted with an air inlet of the in-cabinet air guide box; the in-cabinet air guide box is arranged at the top in the energy storage cabinet, the in-cabinet air guide box is in a cuboid shape, an air inlet of the in-cabinet air guide box is formed in the side face, facing one side of a cabinet door, of the cuboid, the in-cabinet air guide box is provided with a plurality of air guide cavities, and air outlets of the air guide cavities directly face a left air duct, a middle air duct and a right air duct of a PACK frame in the energy storage cabinet respectively; according to the utility model, through the air guide cavities with different shapes and the distribution of different cold air flows, the cold air flow distribution in the energy storage cabinet is more reasonable, and the PACK temperature difference is reduced.

The invention provides a crystallization process of cefazolin acid, and relates to the technical field of medicine production. The crystallization process comprises the following steps: arranging a cefazolin acid seed crystal on the surface of a rotary drum; heating the feed liquid to a preset temperature, and keeping the temperature; the rotary drum is placed above the feed liquid, and a seed crystal layer on the surface of the rotary drum is immersed into the liquid level of the feed liquid by a preset depth; wherein the feed liquid comprises excessive cefazolin acid, and saturated cefazolin acid is dissolved in the feed liquid; water with the preset water temperature is introduced into the rotary drum, so that the temperature of the rotary drum is the preset water temperature; wherein the temperature of the preset water temperature is lower than the preset temperature; and rotating the rotary drum to crystallize the cefazolin acid on the seed crystal layer of the rotary drum. The invention provides a crystallization process of cefazolin acid, which can be used for obtaining large-size cefazolin acid crystals.

The invention belongs to the field of waste heat recovery, and particularly relates to a tail gas thermoelectric generator with a perforated plate structure, which comprises a tail gas heat exchanger, a perforated plate, a thermoelectric module and a cooling water heat exchanger, the thermoelectric module is arranged between the tail gas heat exchanger and the cooling water heat exchanger, and the perforated plate is arranged in the tail gas heat exchanger. The number of the perforated plates is set according to the number of the thermoelectric modules, the thermoelectric modules are arranged in n rows in the tail gas flowing direction, the number of the perforated plates is m, when the row number n of the thermoelectric modules is larger than or equal to 2 and smaller than or equal to 3, the perforated plates are arranged in the middle of the thermoelectric modules in the second row, and when the row number n of the thermoelectric modules is larger than or equal to 4, the perforated plates are arranged in the middle of the thermoelectric modules in the second row. And the perforated plate is arranged in the middle of the thermoelectric module with the multiple of 3. The performance of the tail gas thermoelectric generator can be effectively improved, the surface temperature non-uniformity of the generator is improved, and the equipment reliability is improved.

The invention belongs to the technical field of ceramic materials, and particularly discloses whisker toughened zirconium oxide-aluminum oxide composite ceramic and an additive manufacturing method thereof, the composite ceramic comprises the following components by mass: 94 parts of zirconium oxide toughened aluminum oxide ceramic and 5 parts of silicon carbide whisker; the zirconium oxide toughened aluminum oxide ceramic is prepared from the following components in parts by mass: 76 parts of aluminum oxide and 24 parts of zirconium oxide, and 3mol% of yttrium oxide is added into the zirconium oxide. According to the whisker toughened zirconium oxide-aluminum oxide composite ceramic and the additive manufacturing method thereof, the preparation method has unique design of components and process, and the preparation of a high-density and high-performance ceramic-based composite material part based on a fused deposition modeling technology is successfully realized. Further, the prepared silicon carbide whisker toughened zirconium oxide-aluminum oxide-based composite ceramic has relatively high density and excellent obdurability.

The utility model relates to the technical field of thermal management of lithium ion batteries, and provides a liquid cooling and phase change composite radiating bionic flow channel liquid cooling plate for a battery pack, which comprises a substrate and a cover plate, the substrate and the cover plate are made of metal materials with good thermal conductivity, the substrate is provided with a liquid inlet flow channel, a liquid outlet flow channel, a main flow channel, an arc-shaped flow channel and a filling cavity, the liquid inlet flow channel and the liquid outlet flow channel are arranged on the base plate, the main flow channel is linear and is connected with the liquid inlet flow channel and the liquid outlet flow channel, the arc-shaped flow channels are arranged on the two sides of the main flow channel, the two ends of each arc-shaped flow channel are communicated with the two ends of the main flow channel, a plurality of filling cavities are formed between the main flow channel and the arc-shaped flow channels, and the filling cavities are filled with phase change materials. The phase change temperature of the phase change material is 40-53 DEG C. The substrate and the cover plate are sealed and fixedly connected. Compared with a traditional liquid cooling structure, the heat dissipation structure combines an active heat dissipation mode and a passive heat dissipation mode, the pump power is reduced, and meanwhile the heat dissipation performance is improved.

The invention discloses a high-thermal-conductivity and high-uniform-temperature microchannel structure and a processing method thereof.A microchannel heat sink and an acrylic cover plate above the microchannel heat sink are arranged, a contraction flow channel is embedded in the acrylic cover plate, the height of the contraction flow channel is gradually decreased from the inlet end to the outlet end, and the main body material of the microchannel heat sink is a diamond / copper composite material; due to high thermal conductivity, the diamond / copper-based micro-channel can greatly reduce the temperature of the chip in the working process, and the contraction type micro-channel can improve the flow velocity of the outlet side, enhance the heat exchange effect, reduce the temperature difference between the inlet and the outlet and enhance the temperature uniformity. The magnetron sputtering polytetrafluoroethylene can make the acrylic flow channel hydrophobic and reduce the flow resistance, so that the design of the micro-channel integrates high heat dissipation, high temperature uniformity and low flow resistance, and the overall heat exchange performance of the existing micro-channel is improved.

The utility model provides a liquid cooling plate with adjustable flow, which comprises a liquid cooling plate body, an inlet channel and an outlet channel, the left side of the liquid cooling plate body is provided with the inlet channel, the right side of the liquid cooling plate body is provided with the outlet channel, the liquid cooling plate body is internally provided with a plurality of flow channel guide plates, the plurality of flow channel guide plates are distributed at equal intervals, and the flow channel guide plates are arranged in the liquid cooling plate body. The liquid cooling plate comprises a liquid cooling plate body and a flow adjusting device, and the flow adjusting device is arranged on a flow channel guide plate in the liquid cooling plate body. The liquid cooling plate has the beneficial effects that the flow of each cooling channel in the liquid cooling plate body can be controlled through the flow adjusting device, so that uniform heat dissipation of a battery cell is realized, and the battery cell works in a proper temperature interval; the temperature difference between the battery cells is reduced, so that the temperature uniformity of the battery pack is better, the service life of the battery pack is prolonged, meanwhile, the cost of replacing the liquid cooling plate body is reduced, the flow adjusting plate can be quickly mounted and dismounted, and the liquid cooling plate is reasonable in overall structure, easy to assemble and operate and ingenious in design.

The present invention belongs to the field of well logging technology, and relates to a liquid-cooled phase-change heat management device with a replaceable heat storage module for a well logging instrument, which is used for the thermal management of the well logging instrument chip, and includes an insulation bottle I, an insulation bottle quick connector, a pipeline quick connector, a heat storage module shell, a phase change material, a liquid cooling module, and an insulation bottle II; the insulation bottle I and the insulation bottle II are connected by an insulation bottle quick connector; the heat storage module shell is filled with a phase change material; the liquid cooling module includes a water-cooled pipe heat absorption section, a circulation pump, and a water-cooled pipe heat release section; the water-cooled pipe heat absorption section is arranged in the insulation bottle I, and is used to take out the heat generated by the chip of the well logging instrument; the water-cooled pipe heat release section is arranged in the heat storage module shell to exchange heat with the phase change material; the water-cooled pipe heat absorption section and the water-cooled pipe heat release section are connected by a pipeline quick connector; the circulation pump is used to drive the liquid cooling medium to circulate in the water-cooled pipe heat absorption section and the water-cooled pipe heat release section. The present invention can simultaneously solve the problem of high-temperature thermal failure of the well logging instrument and the need to operate again in a short time after the operation is completed.

The invention relates to the technical field of high-frequency preheating, and discloses a high-frequency preheating device for coating a multi-strand stranded enameled wire core, which comprises a main machine body, a preheating mechanism is arranged outside the main machine body, a mounting chamber is formed in the back surface of the main machine body, and a heat dissipation mechanism and an air guide mechanism are arranged inside the mounting chamber; the heat dissipation mechanism is used for conducting heat dissipation on the interior of the mounting chamber, the air guide mechanism is used for controlling the air outflow direction in the mounting chamber and controlling the air outlet to be switched between external air and the interior of the preheating mechanism, and a temperature sensor is fixedly connected to the interior of the mounting chamber; the preheating mechanism is used for preheating the metal wire core; by controlling the adjusting plate, the adjusting plate can conveniently and selectively seal the inner air cavity or the outer air cavity to adjust the air in the mounting chamber to flow out through the air outlet or flow out through the wire outlet through the outer thermal insulation box, so that different effects are achieved, the use flexibility of the device is effectively improved, and the use diversity of the device is effectively guaranteed.

The present invention provides an immersion-type liquid-cooled energy storage battery box and a temperature control optimization method thereof, including: real-time monitoring of the temperature of each battery cell, obtaining the dynamic temperature data of the battery cell, and generating a battery cell temperature change diagram; intelligent analysis is performed based on the battery cell temperature change diagram to determine whether the battery cell temperature is abnormal and determine the battery cell with abnormal temperature; based on the battery cell temperature change corresponding to the abnormal temperature battery cell, the optimal liquid flow rate is determined, and the flow rate of the coolant corresponding to the abnormal temperature battery cell is adjusted based on the optimal liquid flow rate; according to the time period-flow rate control strategy combined with the current solar radiation angle, the coolant flow rate in the hollow flow channel corresponding to the normal temperature battery cell is adaptively adjusted. The present invention is conducive to reducing the temperature difference between each battery cell in the energy storage battery box, prolonging the battery cell life, realizing precise control of the liquid cooling of the battery cell in the energy storage box, and controlling the liquid cooling energy consumption while ensuring that the battery cell temperature is maintained at a certain level, thereby reducing the energy storage cost.

The utility model discloses a side cold plate, battery pack and vehicle, said side cold plate includes cooling plate and support plate, said cooling plate is connected with said support plate, said cooling plate is used for cooling the upper half part of battery cell side surface, said support plate at least one part is used for being connected with the lower half part of battery cell side surface to support said cooling plate, wherein the heat conductivity coefficient of the cooling plate is greater than that of the supporting plate. According to the cold measuring plate, the temperature difference of the battery cell in the height direction is reduced, and the service life of the battery cell is prolonged.

The utility model relates to the technical field of boiler devices, in particular to a boiler heat exchange tube, which comprises a finned tube and a sleeve sleeved outside the finned tube, the finned tube consists of four groups of fin units and four arc-shaped plates, the fin units are circumferentially arrayed along the axis of the sleeve, the arc-shaped plates are connected with the fin units, each fin unit comprises a plurality of parallel fins, and the arc-shaped plates are connected with the fin units. The fins are arranged at equal intervals, the interval is A, the heights of the fins are gradually increased and then decreased in the clockwise direction of the sleeve, the interval between a straight line L which is parallel to the fins and passes through the circle center of the sleeve and the highest fin is half of the interval A, and the distance between the top ends of the highest fins in adjacent fin units is equal to the interval A; the fins among the four fin units are matched with one another to form a plurality of L-shaped channels distributed in the radial direction of the sleeve, the corners of the L-shaped channels are communicated with the adjacent L-shaped channels, and the temperature difference between high-temperature gas in the center and high-temperature gas at the edge is small, so that the heat conductivity coefficient can be effectively increased, and the heat exchange efficiency is improved.

The invention relates to the technical field of power system energy storage equipment testing, in particular to a small and medium-sized industrial and commercial energy storage cabinet twin-trawling testing system which comprises a main loop, a secondary control loop and an anti-countercurrent detection unit, the main loop comprises double testing loops and four sets of alternating current contactors, and multi-machine twin-trawling testing frameworks such as one-to-one, one-trawling-two and one-trawling-three can be flexibly combined; independent switching between grid connection and grid disconnection is supported, the secondary control loop comprises a button with a lamp and a grouping reset button, and the countercurrent prevention detection unit detects the energy flow direction in real time through an intelligent electric meter and a current sensor and has a mains supply charging function. According to the test system, through a double-loop parallel test architecture and a multi-machine flexible combination design, the system can be synchronously butted with multiple energy storage cabinets to carry out parallel test, the test efficiency can be improved, and a safety system with anti-countercurrent detection, rapid mode switching and precise control protection guarantees the test safety; the arrangement of the standardized terminal and the button with the lamp simplifies the operation difficulty, and reduces the test threshold.

The battery module comprises a plurality of battery cells, the battery cells are arranged in the thickness direction of the battery cells, the battery cells are provided with end faces which are oppositely arranged in the height direction of the battery cells, and the battery cells are provided with first side faces which are oppositely arranged in the thickness direction of the battery cells; the plurality of heat dissipation plates are sequentially arranged among the battery cells, each heat dissipation plate comprises a first heat dissipation part and a second heat dissipation part which are connected with each other, the first heat dissipation part is attached to the first side surface, and the second heat dissipation part is attached to the end surface; the liquid cooling plate is arranged on the sides, close to the end face, of the battery cells, the liquid cooling plate is connected with the second heat dissipation part, and the technical problem that directional temperature difference exists in the battery cells in the battery heat dissipation structure is solved.

The invention discloses an efficient energy-saving corrugated tube type heat exchanger and a heat exchange method, and relates to the technical field of heat exchange equipment. The efficient and energy-saving corrugated tube type heat exchanger comprises a shell, a heat exchange tube, an inner turbulent flow assembly and an outer turbulent flow assembly. The heat exchange tube comprises a plurality of corrugated tubes and a plurality of connecting tubes; the inner turbulent flow assembly comprises a first impeller and a second impeller which are coaxially arranged and have opposite rotating directions; the first impeller and the second impeller rotate in different directions under the impact of the first heat exchange fluid and disturb the laminar flow of the first heat exchange fluid; the outer turbulent flow assembly comprises a partition plate, and a flowing gap and a receding gap are formed between the partition plate and the inner wall of the shell. The height of the flowing gap is larger than that of the receding gap. The outer edge of any blade of the first impeller is provided with a balancing weight used for disturbing the second heat exchange fluid on the left side and the right side of the receding gap. The inner turbulent flow assembly can enhance the turbulent flow disorder degree of the first heat exchange fluid, the outer turbulent flow assembly can enhance the turbulent flow disorder degree of the second heat exchange fluid, and therefore the heat exchange efficiency is improved.

The utility model relates to an intelligent flushing fluid bag heating and pressurizing device which comprises a heating and pressurizing device body, the device body is a main machine, the top of the main machine is a placing area used for placing a flushing fluid bag placing frame, one side of the placing area is an inclined downward surface, a first groove is formed in the surface, and a second groove is formed in the other side of the placing area. A first groove is formed in the main body, a touch screen is installed in the first groove, a second groove, a third groove and an installation hole are formed in the position, located on the side surface of the main body, of the lower portion of the touch screen, a heater is installed on the second groove, a temperature detector is installed on the third groove, a peristaltic pump is installed in the installation hole, a controller is installed in the main machine, and a fourth through hole is formed in the bottom of the main machine. And an outlet hose of the flushing fluid bag is communicated to the outside through the heater, the temperature detector and the peristaltic pump in sequence. The device has the advantages of simplicity in operation, practicability, convenience, controllable temperature and flow velocity and the like.