53results about How to "Realize self-circulation" patented technology

The invention discloses an ecological pontoon device and method for removing heavy metal in a water body, and relates to the technical field of sewage treatment.The ecological pontoon device comprises an overwater moving platform, a power propeller, a self-cruising module assembly, a heavy metal ion removing assembly and a control system, and the power propeller is installed at the bottom of the overwater moving platform; the self-cruising module assembly is mounted on the water mobile platform; the heavy metal ion removal assembly comprises an acrylic square groove formed in the water moving platform, ecological filler filled in the acrylic square groove and a micro diaphragm water pump installed between the acrylic square groove and the water moving platform, and the micro diaphragm water pump is suitable for pumping water from the lake into the acrylic square groove. The water is filtered by the ecological filler and is pumped back to the lake body again; the control system is electrically connected with the power propeller and the self-cruise module assembly. According to the method, heavy metal ions in the water body can be effectively removed, and the efficiency can be remarkably improved while the cost is reduced.

The invention discloses a waste gas treatment device for new energy industrial automobile production, and particularly relates to the technical field of waste gas treatment.The waste gas treatment device comprises a treatment box, a double-cylinder reverse filtering set is arranged on the lower side of the interior of the treatment box, the bottom end of the treatment box is fixedly connected with a gas suction pipe, and a bidirectional spraying assembly is arranged on the upper side of the double-cylinder reverse filtering set; a self-circulation assembly is arranged on the upper side of the bidirectional spraying assembly, and an air injection assembly is arranged on the upper side of the self-circulation assembly. According to the invention, double cylinders in the double-cylinder reverse filtering group rotate reversely to intercept waste gas in a layered manner and disturb airflow at the same time for preliminary filtering, and then a vertical three-dimensional spraying field is formed through cooperation of the bidirectional spraying assembly and the self-circulation assembly, and a filtering layer in the self-circulation assembly is cleaned; and finally, the adsorption and interception efficiency of small particles is improved through shaking of the air injection assembly, self-cleaning is achieved, and the treated automobile paint spraying waste gas can reach the standard to be discharged.

The utility model discloses a mobile air conditioning system which comprises an outer shell (1), a first working cavity located at the top, a second working cavity located in the middle and a third working cavity located at the bottom are arranged in the outer shell (1), and a hot water tank (2), a refrigeration water tank (3) and a compressor (4) are arranged in the third working cavity. Water in the refrigeration water tank (3) passes through the heat exchange cylinder (5) through a first water pump (8), then enters the second water curtain assembly of the second working cavity and flows back into the refrigeration water tank (3); and water in the hot water tank (2) enters the second water curtain assembly through a second water pump (10) and flows back into the hot water tank (2). According to the movable air conditioning system, the structure of upper heat dissipation, middle refrigeration and lower water tank is adopted, water conveyed to the second water curtain of the cold air outlet is cooled through the evaporator of the compressor, the temperature of air blown out through the second water curtain can be rapidly reduced, and meanwhile self-circulation of water is achieved.

The invention discloses a motor heat dissipation device, a motion system and a semiconductor device, the motor heat dissipation device comprises a motor stator and a motor rotor, and the motor rotor is configured to be capable of reciprocating relative to the motor stator; the heat exchange pipeline is arranged on the motor rotor and exchanges heat with the motor rotor; the condensation cavity is connected to one end of the heat exchange pipeline, a plurality of condensation pieces which are communicated with one another and internally provided with cooling liquid are arranged in the condensation cavity, and the gas medium makes contact with the condensation pieces and is converted into a liquid medium which flows into the heat exchange pipeline; the check valve is connected to the other end of the heat exchange pipeline and connected with the condensation cavity, the heat exchange pipeline exchanges heat with the motor rotor, so that the liquid medium in the heat exchange pipeline is converted into a gas medium and enters the check valve, and the check valve is used for guiding the gas medium into the condensation cavity and preventing the liquid medium in the condensation cavity from flowing back. According to the invention, the problem of heat dissipation of the motor in a vacuum environment is solved, the influence on vibration of equipment, especially a power element, is reduced, and the air tightness in the vacuum environment is ensured.

The present invention relates to a production system for producing humic acid from biomass, which is applied to the technical field of humic acid production. After the combustion of plants, the gaseous products are circulated and cooled, and part of the gas is directly condensed into humic acid. In this process, the continuous production of humic acid can be achieved. Compared with the prior art, humic acid can be mass-produced, which greatly improves the production efficiency of the entire humic acid. Moreover, the production system can continuously produce two different humic acids at the same time, so that the production efficiency of humic acid can be further improved. In addition, the by-product of the production system is combustion gas, which can be used as fuel for recycling, thereby realizing the self-circulation of fuel combustion.

The invention discloses a triple-effect evaporation treatment device and method for salt-containing sewage, and belongs to the technical field of sewage chemical treatment. The invention relates to a triple-effect evaporation treatment device for salt-containing sewage. The triple-effect evaporation treatment device comprises an external heat source, and a first-effect reaction unit, a second-effect reaction unit and a triple-effect reaction unit which are connected in sequence, the first-effect reaction unit is provided with a first-effect evaporation chamber, the second-effect reaction unit is provided with a second-effect evaporation chamber, the third-effect reaction unit is provided with a third-effect evaporation chamber, and the first-effect evaporation chamber is connected with an external heat source to evaporate sewage; the first-effect reaction unit is one or two of the first-effect reaction unit, the second-effect reaction unit and the third-effect reaction unit, the heater is arranged in an evaporation chamber of the first-effect reaction unit, the heater is approximately annular, and an area enclosed by the annular heater is a first area; the annular heater and the inner wall of the evaporation chamber form a second area; and the first region is communicated with the second region. Self-circulation of sewage in the evaporation chamber is realized, the evaporation rate and the heat transfer rate are high, the energy consumption is low, the equipment manufacturing is simple, and the like.

The utility model discloses a solar full-spectrum-driven zero-carbon air conditioning system which comprises a solar photovoltaic system, a dehumidifier and a reverse-flow dew-point evaporative cooler. The solar photovoltaic system comprises a solar photovoltaic panel, a storage battery and a water tank, and a water cooling plate is arranged on the solar photovoltaic panel; the storage battery is used for storing electric energy generated by the solar photovoltaic panel and supplying power to the fan, and the water cooling plate is used for collecting heat generated by the solar photovoltaic panel and storing heated water in the water tank; the dehumidifier adopts an MOFs material as a desiccant and comprises two dehumidification modules, and the two dehumidification modules adopt a dehumidification-desorption alternate cycle working mode and alternately execute dehumidification operation and regeneration operation; the reverse-flow dew-point evaporative cooler comprises a dry channel and a wet channel, dry air dehumidified by the dehumidifier is divided into two parts at the tail end of the dry channel after passing through the dry channel, one part serves as working air to enter the wet channel to promote evaporation of a water film on the surface of the wet channel, and the other part serves as product air to be exhausted.

The utility model discloses a fabric degradation testing device, and belongs to the technical field of fabric detection equipment. Which comprises an external box, an operation panel is arranged on one side of the external box, lifting seats are arranged on the two sides of the bottom of the external box, and is characterized in that observation openings are formed in the top and the three side faces of the external box, a top plate for sealing the observation openings in the top is arranged on the top of the external box, and the lifting seats are arranged on the top of the external box. A plurality of discharging grooves are formed in the top of the top plate; according to the utility model, the external box with the three observation openings is arranged, the insertion groove and the side flaring are respectively formed in each observation opening and are used for preventing two transparent glass plates for observation, and meanwhile, the heat preservation cover and the test box in the external box are both made of glass plates with relatively high light transmittance, so that the internal decomposition condition can be well observed; meanwhile, a plurality of layers of glass plates are arranged to achieve good heat preservation and moisture preservation effects.

The present disclosure relates to a polyvinyl chloride production process, and specifically provides a system and process for recovering cold in a hydrogen chloride and acetylene gas dehydration process. It comprises a mixing unit, a deep cooling deacidification unit and a heat exchange unit in sequence; the mixing unit comprises an acetylene cooler, a hydrogen chloride cooler and a mixer, the mixer mixes the acetylene in the acetylene cooler with the hydrogen chloride in the hydrogen chloride cooler, and transports the mixture to the deep cooling deacidification unit; the deep cooling deacidification unit comprises a graphite cooler and an acid mist collector. The heat exchange unit heats the gas mixture at the outlet of the deep cooling deacidification unit, and the heat exchange unit is divided into a primary heat exchange unit and a secondary heat exchange unit. The problem that the cold collection in the polyvinyl chloride production process in the prior art cannot be applied to actual industrial production is solved.

The fluid control assembly comprises a connecting body and a valve element, the connecting body is provided with a containing cavity and a communicating opening, and at least part of the valve element is located in the containing cavity; the connecting body comprises a side wall part, the communicating port is formed in the side wall part, and the wall part forming the containing cavity comprises the side wall part; the communicating port comprises a first port and a second port, and the valve element can enable the first port to communicate with the second port; the fluid control assembly comprises a flow channel, the flow channel is located on the periphery of the side wall part, and the flow channel communicates with the first opening and the second opening. Compared with the mode that the flow channel is arranged on the flow channel plate, the fluid control assembly is compact in structure, and miniaturization of the fluid control assembly is facilitated.

The present invention relates to an immersion evaporative cooling system suitable for a vertical motor rotor, comprising a condenser, a magnetic pole coil, a sealing liquid box and a connecting pipe. The magnetic pole coil is placed inside the sealing liquid box, and the inside of the sealing liquid box is perfused with a liquid evaporative cooling medium, so that the magnetic pole coil is completely immersed in the liquid medium, that is, the liquid level of the liquid medium is higher than the magnetic pole coil; the top of the sealing liquid box is connected to the condenser through a connecting pipe, and the gaseous evaporative cooling medium generated inside the sealing liquid box flows to the condenser through the connecting pipe, and the liquid medium generated after condensation by the condenser also flows back to the sealing liquid box through the connecting pipe, so that only the connecting pipe needs to be set between the top of the sealing liquid box and the condenser to realize the two-way flow of liquid medium and gaseous medium at the same time, without the need to set a separate liquid return pipe between the bottom of the sealing liquid box and the condenser.

The invention belongs to the technical field of energy storage systems, and discloses an energy storage direct cooling system which comprises a compressor, a condenser assembly, an expansion valve, a liquid storage device, a refrigerant pump, a liquid separator, a battery cluster and a valve piece. A refrigerant outlet of the compressor is connected with a first port of the first condenser, the two ends of the expansion valve are connected with a second port of the first condenser and a refrigerant inlet of the liquid storage device respectively, and the two ends of the refrigerant pump are connected with a first refrigerant outlet of the liquid storage device and a refrigerant inlet of the liquid separator respectively. The two ends of the battery cluster are connected with a refrigerant outlet of the liquid separator and a refrigerant inlet of the liquid storage device respectively, a second refrigerant outlet of the liquid storage device is connected with a refrigerant inlet of the compressor, and the valve piece is located between the refrigerant inlet of the compressor and the second refrigerant outlet of the liquid storage device. A liquid refrigerant can be prevented from entering the air suction side of the compressor to cause liquid impact; the self-circulation of the refrigerant in the system can be realized, and the temperature consistency of the batteries in the battery cluster is improved; and the system integration degree is high.

The present application provides an online activation system, method and vehicle for a fuel cell, and relates to the field of fuel cell technology. The system includes: a bidirectional DC converter, a fuel cell, and vehicle equipment, and the vehicle equipment includes: a power battery and electrical equipment on the vehicle; a hydrogen control valve is provided on the hydrogen intake pipe of the fuel cell, a hydrogen circulation pump and a hydrogen-water separator are provided on the hydrogen circulation pipe of the fuel cell, and the hydrogen circulation pipe is connected to the hydrogen intake pipe; an air control valve, an air compressor, an intercooler and a first humidifier are provided on the air intake pipe of the fuel cell, an air-water separator, a three-way valve and a second humidifier are provided on the air circulation pipe of the fuel cell, and the air circulation pipe is connected to the air intake pipe, and the connection position of the air circulation pipe and the air intake pipe is located between the air control valve and the air compressor. Through the system of the present application, the on-board fuel cell can be automatically activated by multi-cycle hydrogen pump and high-power activation when the whole vehicle is running.

The invention relates to the technical field of chemical equipment, and discloses a dry acetylene generation water system closed circulation device which comprises a reaction tower, a feeding mechanism, a water supply mechanism, a slag extractor and an auger conveying mechanism are connected to the reaction tower, and the other end of the auger conveying mechanism is connected with a dust removal cooling tower. One end of the closed circulating conveying mechanism is connected with the bottom end of the dust removal cooling tower, and the other end of the closed circulating conveying mechanism is respectively connected with the top ends of the reaction tower and the dust removal cooling tower through pipelines; one part of slag slurry water in the dust removal cooling tower is used for spraying, washing and self-circulating in the dust removal cooling tower by the closed circulating conveying mechanism, and the other part of the slag slurry water is recycled to the reaction tower to serve as reaction water; the situation that when the slag slurry water in the dust removal cooling tower passes through several baffling tanks and concentration tanks, a large amount of water vapor is scattered on the surface of a liquid phase due to high water temperature and large liquid surface area is avoided, and the water resource loss is serious.

The utility model relates to the technical field of synthetic leather processing, and discloses superfine fiber polyurethane synthetic leather kneading and softening equipment which comprises an equipment bottom plate, a feeding seat is fixedly connected to the upper surface of the equipment bottom plate, and a feeding roller, an operation box, a driving motor and a front eccentric seat are rotationally connected into the feeding seat. The synthetic leather softening device is reasonable in structure, steam is discharged into the pipeline in the cover plate through the fan, the steam is sprayed to the surface of synthetic leather through the spray head, the synthetic leather is torn or deformed when softening operation is conducted on the synthetic leather due to the fact that the surface toughness of the synthetic leather is reduced due to the too low temperature of the synthetic leather, and the lifting roller rotates continuously through the lifting motor; and burrs, scraps, dust and the like generated after the surface of the synthetic leather is polished are sucked into the adsorption box from an opening in the lower portion of the adsorption box, the problem that subsequent processing and production are prone to being affected by burrs, dust and the like left on the surface of the synthetic leather is solved, the fixed roller is made to rotate continuously through the fixed motor, the synthetic leather can be extruded, and warped edges generated by the synthetic leather can be flattened.

This invention proposes a large-scale vertical motor thrust head and lubrication and cooling system based on phase change self-circulation, belonging to the field of vertical motor lubrication and cooling technology. It solves the problems of complex installation, high water consumption, high leakage risk, and high cost inherent in existing large-scale vertical motor thrust and guide bearing lubrication and cooling systems. The guide bearing is assembled and installed on the inner wall of the base and outer cover assembly, while the thrust bearing is assembled and installed at the bottom inside the base and outer cover assembly. The lower end face of the thrust head fits into the thrust bearing assembly to form a thrust sliding pair, and its lateral outer circular surface contacts the guide bearing assembly to form a guide sliding pair. The inner hole of the thrust head is connected to the main shaft and rotates synchronously with the main shaft. Phase change material fills the internal cavity of the thrust head, and a spiral finned cooler communicates with the internal cavity of the thrust head. This invention combines the phase change heat transfer characteristics of the phase change material to achieve a self-cooling cycle without external cooling water and power, simplifying the equipment structure, reducing operating costs, and improving system stability and service life.

The present invention discloses a self-circulating liquid cooling system and a control method, which are used to solve the technical problem that the existing liquid cooling system needs to use a circulating pump to realize the circulation of coolant. The equipment cooling pipeline in the present invention is connected with a second coolant supply pipeline, the second coolant supply pipeline is connected to the second circuit of the main heat exchanger, the second circuit of the main heat exchanger is connected to a liquid storage tank, the bottom outlet of the liquid storage tank is connected with a second coolant outlet pipeline, the second coolant outlet pipeline is connected to the equipment cooling pipeline; the first vacuum generation pipeline is connected to the gaseous second coolant outlet of the main heat exchanger, the first vacuum generation pipeline is connected to the inlet of the second circuit of the auxiliary heat exchanger, the first pressure sensor and the vacuum pump are connected to the first vacuum generation pipeline, the gaseous second coolant outlet of the auxiliary heat exchanger is connected to the second vacuum generation pipeline, the second vacuum generation pipeline is connected to the second coolant supply pipeline, and the auxiliary heat exchanger is connected to the liquid storage tank.

The present application relates to a kind of transformation condensate resource utilization method.The method includes the following steps: S1, after mixing with sulfuric acid, the transformation condensate is carried out decarburization treatment, and the crude ammonium sulfate solution is obtained;S2, under the action of catalyst, the crude ammonium sulfate solution is reacted with oxidizing agent, and the refined ammonium sulfate solution is obtained;Oxidizing agent includes one or more of hydrogen peroxide, ozone and persulfate.The method of the present application is suitable for different scale transformation condensate treatment process, and has the following characteristics: waste material recycling, recovery rate is more than 99.0%, product added value is high, and economic benefit is good;Avoid the phase change process of water, and energy consumption is less, energy saving and emission reduction;Process flow is simple, and processing efficiency is high;Avoid secondary pollution;Help coal chemical industry enterprise to realize plant material self circulation, and generate good economic benefit by-product.

The utility model discloses a pipeline anti-freezing system. The pipeline anti-freezing system comprises a plurality of solar heat collection plates, a heat collection water tank, a heat storage water tank, a first water pump and a heat exchange device. And an outlet valve and an inlet valve are respectively arranged at an outlet and an inlet of each solar heat collection plate. The heat collection water tank is higher than the solar heat collection plate, and the heat collection water tank communicates with a water outlet of the solar heat collection plate through a first water inlet pipe and communicates with a water return opening of the solar heat collection plate through a first water return pipe. The heat storage water tank communicates with the heat collection water tank through a second water inlet pipe and a second water return pipe to form a water circulation loop. The first water pump is installed on the second water return pipe. A hot fluid inlet and a hot fluid outlet of the heat exchange device both communicate with the hot water storage tank, and a cold fluid inlet and a cold fluid outlet of the heat exchange device both communicate with a fire fighting pipeline. According to the pipeline anti-freezing system, the maintenance cost of a tunnel fire fighting system is greatly reduced, and self-circulation is achieved between the solar heat collection plate and the heat collection water tank through the density difference between hot water and cold water.

The invention discloses a frequency converter heat preservation and heat dissipation device which comprises a frequency converter cabinet body, an air inlet is formed in the side portion of the lower end of the frequency converter cabinet body, an air outlet is formed in the upper end face of the frequency converter cabinet body, a turbine heat dissipation fan is installed in the air outlet, and an air guide box is installed on the upper end face of the frequency converter cabinet body. The air guide box covers the periphery of the air outlet, an exhaust pipe is installed on the side portion of the upper end of the air guide box, and an exhaust outlet of the exhaust pipe communicates with the outside through an axial flow fan. According to the device, cooling can be effectively achieved, the excellent heat preservation effect can be achieved, the cooling function and the heat preservation function can be freely switched, different use requirements are met, the device is low in improvement cost and maintenance cost and low in failure rate, it is ensured that equipment can safely and stably operate for a long period, and the device is suitable for popularization and application. A more economical, efficient and reliable choice is provided for solving the problems of ventilation and heat preservation of the frequency converter, and the energy-saving and consumption-reducing effects are remarkable.

The invention discloses novel water circulation hydroelectric power generation equipment which comprises a water storage tank, a circulation water tank and an external water pool. The number of the water storage tanks and the number of the circulating water tanks are both two, the water storage tanks and the circulating water tanks are symmetrically arranged in a cross shape, the positions of the water storage tanks are higher than the positions of the circulating water tanks, external pools are arranged on the lower portions of the circulating water tanks in the circumferential direction, and a plurality of water pumping devices connected with the external pools through pipelines are arranged on the tops of the circulating water tanks in the circumferential direction. The upper part of the water storage tank is connected with a water feeding pipe; the lower part of the water feeding pipe is communicated with the bottom of the circulating water tank; the bottom of each water storage tank is connected with a spiral pipeline, the other end of the spiral pipeline is communicated with the bottom of any water storage tank, one end, close to the circulating water tank, of the spiral pipeline is provided with at least one pressurizing bottle, and the spiral pipeline is provided with a generator located between the circulating water tank and the pressurizing bottles.

The utility model discloses a horizontal cross flow type self-circulation spraying acid mist tower which comprises a tower body, a support frame is fixedly connected to the bottom of the tower body, a spraying mechanism is arranged in the tower body and used for spraying alkaline liquid, and a circulation mechanism is arranged in the support frame and used for recycling waste liquid. The circulating mechanism comprises a filtering assembly, the filtering assembly comprises a filtering box installed on the left side in the supporting frame and a liquid storage box installed on the right side in the supporting frame, and the top of the filtering box is fixedly connected with the bottom of the tower body through a liquid outlet pipe. According to the horizontal cross-flow type self-circulation spraying acid mist tower, the filter screen plate can be quickly mounted and dismounted by arranging the clamping assembly, the filter screen plate can be conveniently replaced or cleaned, the working efficiency is improved, waste liquid and chemicals are stirred and mixed by arranging the stirring assembly, so that waste materials form alkaline liquid again, and the waste liquid is recycled. Self-circulation is achieved, and resources are saved.

The invention relates to the technical field of air circuit breakers, in particular to an insulation sealing type epoxy solid-sealed polar pole which comprises a main body, a cooling cylinder and a liquid feeding assembly, the main body is sleeved with the cooling cylinder, a liquid storage cavity is formed in the cooling cylinder, and the liquid storage cavity is divided into an upper cavity and a lower cavity in the vertical direction; cooling media are stored in the upper cavity and the lower cavity. The liquid feeding assembly is arranged, directional conveying of the cooling medium from the upper cavity to the lower cavity is achieved through the liquid feeding assembly, the cooling medium absorbs heat and is vaporized in the upper cavity, then is cooled and condensed and flows back into the upper cavity, and when the amount of the liquid cooling medium in the upper cavity exceeds a preset value, the cooling medium in the upper cavity can flow back into the lower cavity; in this way, self-circulation of the cooling medium between the upper cavity and the lower cavity is achieved, and due to the fact that the liquid feeding assembly is configured in the mode that the conveying amount of the cooling medium of the liquid feeding assembly is in positive correlation with the temperature in the upper cavity, the higher the temperature in the upper cavity is, the higher the self-circulation speed of the cooling medium is.

The invention discloses a novel suspended leaching tower, which comprises an inner tube, a top flange is arranged on the upper part of the inner tube, a cover plate is installed on the top flange, a top sealing gasket is arranged between the top flange and the cover plate, a feed port is arranged on the central hole of the cover plate, a head is arranged on the lower part of the inner tube, a discharge port is arranged on the head, an exhaust port is arranged on the upper side wall of the inner tube, an air inlet is arranged on the lower side wall of the inner tube, an air inlet assembly is installed on the air inlet, and a circulating cooling system is arranged on the outer wall of the inner tube. The invention can effectively avoid the current leaching tower requiring an external stirring device to mix materials, which inevitably increases the complexity of the metallurgical equipment structure, and at the same time, the stirring material reaction cannot be fully closed, gas overflows, is not conducive to environmental protection, has low production efficiency, backward performance, and is difficult to repair and maintain.

The utility model discloses a cooling liquid self-circulation sand pump which is characterized in that the cooling liquid self-circulation sand pump comprises a main shaft, a mechanical seal pump cover and a sealing seat, the main shaft penetrates through the sealing seat and the mechanical seal pump cover, a mechanical seal device and an oil seal are installed on the mechanical seal pump cover and the sealing seat respectively for sealing, a pumping ring is arranged between the mechanical seal device and the oil seal, the pumping ring is fixed on the main shaft, and the main shaft penetrates through the sealing seat. The upper end and the lower end of the sealing seat are provided with a discharging connector and a connecting connector respectively, the discharging connector is communicated with the position over the pumping ring, and the connecting connector is communicated with the position below the side of the pumping ring. By arranging the pumping ring, in the operation process of the sand pump, a pressure difference is generated at a cooling liquid discharging connector and a cooling liquid discharging connector, so that the cooling liquid can achieve self-circulation, and the lubricating and cooling effects on the mechanical seal device are achieved.

The present invention relates to the technical field of air circuit breakers, and specifically to an insulating sealed epoxy-sealed pole, comprising a main body, a cooling cylinder and a liquid delivery component, wherein the cooling cylinder is sleeved on the outside of the main body, and a liquid storage chamber is provided inside the cooling cylinder, and the liquid storage chamber is separated into an upper chamber and a lower chamber along the vertical direction, and cooling medium is stored in both the upper chamber and the lower chamber. The present invention is provided with a liquid delivery component, and the liquid delivery component is used to realize the directional delivery of the cooling medium from the upper chamber to the lower chamber, and the cooling medium first absorbs heat and vaporizes in the upper chamber, and then condenses and flows back into the upper chamber when it encounters cold, and when the amount of liquid cooling medium in the upper chamber exceeds a preset value, the cooling medium in the upper chamber can flow back into the lower chamber, thereby realizing the self-circulation of the cooling medium between the upper chamber and the lower chamber, and because the liquid delivery component is configured so that the delivery amount of the cooling medium of the liquid delivery component is positively correlated with the temperature in the upper chamber, the higher the temperature in the upper chamber, the faster the self-circulation speed of the cooling medium.

The present invention discloses a double-end surface fine grinding system and method for a blade, which belongs to the field of blade processing. A double-end surface fine grinding system for a blade includes an arranging machine, a transfer assembly, and a double-end surface fine grinding machine which are arranged in sequence. The arranging machine includes a frame, a material tray, a carrier plate, a material tray conveying line arranged on the frame, a carrier plate conveying line, a first material moving assembly, a second material moving assembly, a loading storage bin, a unloading storage bin, a third material moving assembly, and a fourth material moving assembly. The material moving end of the first material moving assembly is located above the material tray conveying line and the carrier plate conveying line. The first material moving assembly is used to take the blade to be finely ground from the material tray and place it on the carrier plate. The material moving end of the fourth material moving assembly is located above the material tray conveying line and the carrier plate conveying line. The present invention realizes efficient tray placement and loading storage of the blade to be finely ground, unloading storage and efficient tray placement of the blade after fine grinding, and efficient storage and transfer of the material tray, thereby greatly improving the fine grinding efficiency.

The present invention relates to an aluminum alloy composite material for brazing, comprising: a core material layer, a first brazing layer, and a first intermediate layer, wherein the first intermediate layer is located between the core material layer and the first brazing layer. In the aluminum alloy composite material for brazing of the present invention, the raw material of the core material layer may contain more than 50% by weight of waste based on the weight of the raw material of the core material layer. The composite material of the present invention has high strength and corrosion resistance, and a large amount of post-consumer waste and process waste can be used in the preparation process, which can achieve green and sustainable development, can significantly reduce carbon emissions, and create conditions for achieving the dual carbon strategy.

The present invention provides an electroplating apparatus and method for prolonging the service life of a circulating electroplating solution by isolating external oxygen. The apparatus includes: an open electroplating tank; a sealed liquid storage tank with electroplating solution stored therein, injected with N2 and maintained at a preset pressure; a liquid injection, reflux and overflow pipeline connecting the electroplating tank and the liquid storage tank, with U-shaped liquid seals provided on both the reflux and overflow pipelines; an N2 pipeline for providing an oxygen-isolated environment for the electroplating solution reflux channel; a bypass pneumatic valve for opening after the N2 pipeline releases N2 to balance the N2 pressure in the liquid storage tank. The present invention innovatively proposes a brand-new open electroplating tank body device structure and electroplating solution circulation system. By controlling the N2 pipeline and using the U-shaped liquid seal, the air in the reflux and overflow pipelines can be discharged and the overall system can be helped to isolate air and oxygen. With the help of the bypass pneumatic valve, etc., the pressure generated by the input of N2 into the liquid storage tank can be balanced, enabling the reflux electroplating solution to flow back to the liquid storage tank by gravity. Moreover, the maintenance of the N2 pressure in the liquid storage tank can maintain a zero or low oxygen environment.