71results about How to "Increase heating capacity" patented technology

The invention provides an intelligent heat supply management and control system based on Internet of Things data acquisition and intelligent research and judgment, and relates to the technical field of intelligent heat supply operation, and the system comprises a first indoor environment data acquisition module which detects first temperature data and first infrared radiation intensity data; the historical user information acquisition module is used for acquiring user behavior habit information; the heat supply judgment module determines whether a heat supply system needs to be started or not; a heat supply module is started, and a heat supply system is started; the indoor environment data acquisition module is used for acquiring indoor environment data; the outdoor environment data acquisition module is used for acquiring outdoor environment data; the heat supply system monitoring module is used for collecting heat supply parameters of the heat supply system; the heat load adjusting and judging module is used for determining whether the heat load of the heat supply system needs to be adjusted or not; the thermal load adjustment determining module is used for determining the adjusted thermal load; and the monitoring report module is used for generating a system monitoring report. According to the invention, the heat supply effect can be obviously improved, and the energy consumption is reduced.

The invention discloses a copper smelting method of an Ausmelt furnace without a top-blowing spray gun, and relates to the technical field of copper smelting of the Ausmelt furnace, and the copper smelting method comprises the following steps: (1) spraying coal powder and mineral powder into a molten pool through an ore gun and a coal gun of the Ausmelt furnace without the top-blowing spray gun; (2) a side-blowing combustion gun of the Ausmelt furnace without the top-blowing spray gun sprays fuel to the molten pool; and (3) when the copper matte reaches the target grade 58-62%, ending the reaction, recording the melt temperature distribution, measuring the viscosity of the slag, and taking the slag sample for analyzing the content of Fe3O4. The Ausmelt furnace without the top blowing spray gun comprises a flue, a baffle, a combustion gun, an ore gun and a coal gun, a flue is arranged on the upper portion of the furnace body, a baffle is arranged below the flue, combustion guns are symmetrically arranged on the furnace body above a slag layer, coal guns are symmetrically arranged on the furnace body at the junction of the slag layer and a molten copper bath, ore guns are symmetrically arranged on the furnace body at a molten copper bath layer, and pressure gauges are arranged on the ore guns and the coal guns.

The utility model discloses an air conditioner, which relates to the technical field of air conditioners, and is characterized in that a refrigerant adjusting device is arranged between an indoor heat exchanger and an outdoor heat exchanger so as to receive condensed refrigerant and convey the refrigerant to an expansion valve; the refrigerant adjusting device is provided with a first flowing loop, a second flowing loop, a first reversing loop and a second reversing loop, and can store a refrigerant or release the stored refrigerant under the condition that the air conditioner operates in a refrigeration mode or operates in a heating module. Therefore, the amount of the refrigerant circulating and operating in the refrigerant circulating loop is adjusted. According to the air conditioner, the refrigerant adjusting device is arranged in the refrigerant circulation loop, so that the air conditioner can be under different operation working conditions, different compressor operation frequencies and different operation modes, the use amount of the refrigerant circulated by the air conditioner is optimal and can be matched with the operation frequency of the compressor, and the working efficiency of the air conditioner is improved. And the real-time energy efficiency of the air conditioner reaches the most efficient.

The invention relates to a heat pool and a heat management system for realizing automobile exhaust waste heat recovery by utilizing fused salt heat transfer and heat conduction. The hot pool comprises a tail gas flowing pipe, a heat conduction oil flowing pipe and a hot pool shell, and a phase-change material fused salt is contained in the hot pool shell. According to the heat pool, on the basis of two media, high-boiling-point heat conduction oil is used for replacing low-boiling-point refrigerants, fused salt media are added, mutual heat exchange of the three media is achieved, corrugated pipes are used for replacing common steel pipes, the problem that circulation of heat exchange media is interrupted due to indirect and random automobile exhaust emission is solved, integration of heat transfer and heat storage is achieved, and the service life of the heat pool is prolonged. The heat transfer and storage capacity is high. The system comprises an air conditioner loop module, an engine loop module, a heat pool heat release loop module, a battery loop module and two five-way valves. The system has various different application scenes, tail gas directly exchanges heat with heat conduction oil in the heat pool heat exchanger to achieve direct heat release, heat in the tail gas is stored in the phase change material, and heat storage and heat exchange are achieved when the system needs to be used.

The utility model relates to the technical field of thermal management of vehicles, in particular to a thermal management system of a vehicle and the vehicle, and aims to solve the problem that the heating capacity of a thermal management system of an existing new energy vehicle is insufficient in a low-temperature environment. Therefore, the heat management system comprises a compressor, an air conditioning box assembly and a gas-liquid separator, the two ends of the air conditioning box assembly are communicated with an exhaust port of the compressor and an inlet of the gas-liquid separator respectively, an outlet of the gas-liquid separator is communicated with an air return port of the compressor, and the heat management system further comprises a circulating pipe connected with the air conditioning box assembly in parallel. By arranging the circulating pipe, the compressor and the gas-liquid separator form a self-circulation heating loop, so that the compressor can cyclically compress a refrigerant in the self-circulation heating loop, the compression density and the compression temperature of the refrigerant are improved, the flow and the temperature of the refrigerant entering the air conditioning box assembly are improved, and the service life of the air conditioning box assembly is prolonged. The heating capacity of the thermal management system of the vehicle in the low-temperature environment is improved, and the use experience of a user is improved.

The utility model discloses a closed underground heat exchange hole well bore structure which effectively solves the problems that the heat exchange efficiency of a single circulation loop is low, and the utilization rate of heat energy in a middle-deep layer is limited. Which comprises a vertical well vertically extending downwards from the ground, and is characterized in that a heat preservation pipe is arranged in the vertical well, a packer is arranged at the bottom of the heat preservation pipe and divides the vertical well into an upper well part and a lower well part which are separated from each other, an inclined well located below the ground is arranged on one side of the vertical well, and the inclined well is arranged in the vertical well. The inclined well is divided into an inclined part and a vertical part, and one end of the inclined part is communicated with the upper well part; the second horizontal well is ingenious in structure and convenient to use, the problem that water flow among a plurality of second horizontal wells flows slowly is solved through the arrangement of the guide assembly and the like, the flowing speed of liquid media in the second horizontal wells is controlled by adjusting the positions of the guide arc pieces, meanwhile, the guide arc pieces can be adjusted according to different use requirements, and the service life of the second horizontal wells is prolonged. And adjustment of the flowing speed of liquid in the second horizontal well is achieved.

The embodiment of the invention provides a thermal management system and a vehicle. The heat management system comprises a compressor, a water-cooling condenser, a first throttle valve, a battery heat exchanger and a battery cooler; a refrigerant outlet of the compressor is communicated with an inlet of a refrigerant flow channel of the water-cooled condenser; an outlet of a refrigerant flow channel of the water-cooling condenser is communicated with an inlet of a refrigerant flow channel of the battery cooler through a first throttling valve; an outlet of the cooling liquid flow channel of the water-cooled condenser is communicated with an inlet of the cooling liquid flow channel of the battery heat exchanger; an outlet of the cooling liquid flow channel of the battery heat exchanger communicates with an inlet of the cooling liquid flow channel of the battery cooler. In a low-temperature or extremely-low-temperature environment, a low-temperature and low-pressure liquid refrigerant absorbs heat and evaporates in the battery cooler to form a gaseous refrigerant, so that sufficient gaseous refrigerant is provided for the compressor, and the compressor can continuously perform high-power compression acting heating, so that a heat pump subsystem in the heat management system has relatively high heating capacity; and the thermal requirements of thermal management objects such as power batteries are met as much as possible.

This invention relates to the field of primary heating network technology, specifically disclosing a centralized heating primary heating network energy supply balance operation regulation monitoring and control system. The system includes a user area estimated heat demand analysis module, a user area comprehensive heat demand analysis module, an energy station heat distribution module, an energy station heat transmission detection module, an energy station transmission quality assessment module, a display terminal, a protection terminal, and a cloud database. This invention ensures the accuracy and precision of the actual heat supply analysis for user areas, thereby improving the heating efficiency and effect of energy stations. It safeguards the revenue of energy stations on one hand and ensures normal use on the user side on the other. This invention alleviates the pressure on energy stations while meeting the heating needs of users, thereby improving the relative balance of energy stations, reducing the deviation between heat supply and heat demand to a certain extent, and improving the efficiency of centralized energy supply.

The invention discloses a heat-failure-resistant wet paper substrate type friction torque limiter for a high-power scraper conveyor, and belongs to the technical field of scraper conveyor torque limiting. The heat-failure-resistant wet paper substrate type friction torque limiter comprises n friction plates, the (n + 1) dual steel sheets and the friction sheets are alternately arranged in sequence to form 2n friction pairs; one of the friction plate and the dual steel sheet is provided with inner teeth, the other one of the friction plate and the dual steel sheet is provided with outer teeth, and the inner teeth and the outer teeth are used for being connected with the friction pair inner hub and the friction pair outer hub; a plurality of lubricating oil channels are processed at the spline tooth root of the friction pair inner hub; wherein the thickness of the dual steel sheet located in the axial middle area is larger than that of the dual steel sheets located in the two side areas, and the hole diameter of the lubricating oil channel in the friction pair inner hub in the axial middle area is larger than that of the two side areas. The thickened dual steel sheets can improve the heat capacity of a friction pair, the enlarged lubricating oil holes can improve the heat dissipation effect of the friction pair, and the heat failure deformation resistance of the friction pair is improved.

The application relates to the technical field of heat pumps, in particular to a fluorine cooling and water cooling coupled heat dissipation driving plate system, which comprises a compressor, a first heat exchanger, a second heat exchanger, a first electronic expansion valve and a driving plate radiator, one end of the compressor is communicated with one end of the first heat exchanger, the other end of the compressor is communicated with one end of the second heat exchanger, the other end of the first heat exchanger is communicated with the other end of the second heat exchanger, the first electronic expansion valve is connected in series in a passage communicated between the first heat exchanger and the second heat exchanger, and a water inlet pipe of the first heat exchanger, the driving plate radiator and a water outlet pipe of the first heat exchanger are communicated in sequence. The fluorine cooling and water cooling coupled heat dissipation driving plate system can overcome the low heat exchange efficiency of the existing fluorine cooling heat pump unit, can improve the heat exchange efficiency under the condition that the ambient temperature is relatively low, can reduce the waste of resources, and can improve the energy-saving economy of the system.

The invention discloses a direct air-cooling unit cold end exhaust steam waste heat utilization system combined with an absorption heat pump, comprising a steam turbine intermediate pressure cylinder, the steam turbine intermediate pressure cylinder is respectively connected to an absorption heat pump and a steam turbine low pressure cylinder through pipelines, an exhaust device is arranged below the steam turbine low pressure cylinder, a heat exchanger is connected to the bottom of the exhaust device, the heat exchanger and the absorption heat pump form a circulation loop through pipelines, the exhaust device side wall is connected to an exhaust pipe, the other end of the exhaust pipe is connected to an air cooling island, an absorption heat pump and a mechanical ventilation tower, the air cooling island is connected to the exhaust device through a condensate pipe, the absorption heat pump is connected to the condensate pipe through a pipe, the absorption heat pump is also connected to a heat network heater through a pipe to form a circulation loop, the heat network heater is also connected to the heat exchanger through a pipe, and the mechanical ventilation tower is also connected to the condensate pipe through a pipe. The invention solves the problem that the exhaust steam waste heat existing in the prior art cannot be effectively recycled and utilized, and the exhaust steam waste heat loss causes a significant reduction in the comprehensive utilization rate of energy.

The application discloses a primary and secondary fusion complete set of pole-mounted circuit breaker and relates to the technical field of circuit breakers, which comprises an arc-extinguishing chamber, the arc-extinguishing chamber comprises an insulating shell, a movable contact, a fixed contact, a dynamic gas generating unit and a passive magnetic sensing unit. The dynamic gas generating unit comprises a gas generating element, a fixed magnetic element and a flow guiding element. The core of the application is that the passive magnetic sensing unit is configured to drive the dynamic gas generating unit and the flow guiding element to move when the movable contact is opened, and the fluorocarbon gas generated by the decomposition of the gas generating element under the electric arc is guided to the electric arc area in the center of the arc-extinguishing chamber, so that the uniform distribution is formed to realize efficient arc extinguishing. Through the synergistic effect of magnetic control driving, passive gas generation and active flow guiding, the arc extinguishing speed and reliability are significantly improved, and the technical problems that the arc extinguishing effect of the existing pole-mounted circuit breaker is poor and the high integration and high reliability requirements of the primary and secondary fusion equipment cannot be met are effectively solved.

The utility model discloses a gas heater, and relates to the field of fuel cells, the gas heater comprises a hollow heat conduction sleeve and a heating part arranged in the heat conduction sleeve, the heat conduction sleeve and the heating part are fixedly clamped through a detachable positioning hoop assembly; the heating part comprises a heating rod which is distributed along the central axis direction of the heat conduction sleeve and fins which are spirally distributed on the outer side wall of the heating rod; the heating rod comprises an outer pipe body of a composite layer structure and a heating wire fixed in the inner space of the outer pipe body. The heating component is coupled and positioned in the heat conduction sleeve, so that an effective positioning and fixing effect on the heating component is achieved; the heat exchange area in the heating rod and the heat conduction sleeve is increased, the heat capacity is increased, and the heat exchange efficiency is improved.

This invention proposes a structure, assembly method, and a laminated pole synchronous motor for improving the heat dissipation capacity of the damping strip in a laminated pole synchronous motor. It belongs to the field of laminated pole synchronous motors. The invention solves the problem of how to effectively improve the heat dissipation capacity of the damping strip in a laminated pole synchronous motor. The heat dissipation structure consists of multi-layered fins welded to the damping strip of the laminated pole synchronous motor. A graphene coating is sprayed onto the fins and damping strip. The damping strip has a hollow structure filled with phase change material. One end of the damping strip is fixed to a damping ring, and the other end is connected to the pole core. Heat dissipation fins are provided at the bottom of the damping ring. This invention employs a composite heat dissipation system of "internal phase change flow heat transfer + fins + damping ring heat dissipation fins": internally, the phase change cycle of the phase change material promotes uniform heat distribution; externally, the heat dissipation fins on the surface of the damping strip and the integrated heat dissipation fins of the damping ring form a three-dimensional heat dissipation network, significantly accelerating the transfer of heat from the damping winding to the external environment.

The present application belongs to the technical field of combined heat and power generation, and discloses a plant-level combined heat and power generation unit combined heat supply system and an operation method thereof. The plant-level combined heat and power generation unit combined heat supply system comprises a first ejector, a second ejector, a heat storage heat exchanger, a heat storage device, a first ejector heater, an absorption heat pump, a peak heater, a compression heat pump and a basic heater group. In the present application, the heat network water is heated in the basic heater group, the first ejector heater, the absorption heat pump and the peak heater in stages, and then supplied to the outside, so that the heat exchange loss is reduced, the energy utilization efficiency is improved; by adopting the series connection of the basic heater group, the ejector and the heat pump, the low-temperature waste heat is fully utilized, the consumption of high-grade steam is reduced, and the heat supply cost is reduced; by adopting the heat storage technology and the compression heat pump auxiliary heat supply, the heat supply demand can still be met when the power plant participates in the grid peak regulation, and the heat supply capacity and the heat supply flexibility of the power plant are improved.

The application is suitable for the field of automobile technology, and provides a control method and system for vehicle thermal management and a vehicle.The method comprises the following steps: after detecting that the air conditioning heating function on the vehicle is turned on, the water temperature at the outlet of the driving motor of the vehicle is acquired; if the water temperature is less than a first threshold value, it is determined that the heating strategy of the vehicle is an air source heat pump heating strategy, a positive temperature coefficient heating strategy and a supplementary air and enthalpy increasing heating strategy; and the air conditioning system of the vehicle is controlled according to the air source heat pump heating strategy, the positive temperature coefficient heating strategy and the supplementary air and enthalpy increasing heating strategy, so as to improve the indoor temperature of the vehicle. Compared with the prior art which only improves the indoor temperature through the supplementary air and enthalpy increasing heating strategy, the method combines the air source heat pump heating strategy, the positive temperature coefficient heating strategy and the supplementary air and enthalpy increasing heating strategy to control the air conditioning system of the vehicle, thereby improving the heating capacity of the air conditioning system, improving the energy efficiency of the air conditioning system and reducing the energy consumption.

A method for detecting the temperature of an electrical terminal (20, 120). The method comprises: applying a material sheet (24, 124) to the surface of the electrical terminal (20, 120), wherein the thermal mass of the material sheet (24, 124) is less than 25%, 20%, 15%, 10%, or 5% of the thermal mass of the electrical terminal (20, 120), so that the material sheet (24, 124) does not significantly increase the resistance or thermal capacity of the electrical terminal (20, 120); and remotely sensing the change of the material sheet (24, 124 using an electrical isolation circuit (50, 150) outside the electrical terminal (20, 120) to determine whether the electrical terminal (20, 120) is operating at a safe temperature, thereby optimizing the current on the electrical terminal (20, 120).

The invention provides a control method suitable for the exhaust temperature of a low-temperature heat pump system, relates to the technical field of heat pump unit control, and aims to improve the heating efficiency of a heat pump at a low environment temperature and prevent the exhaust temperature from being too high during high-pressure-ratio operation so as to ensure the reliability of the system. The method is divided into three exhaust temperature control stages, namely a low exhaust temperature stage, a medium exhaust temperature stage and a high exhaust temperature stage. And in the low-temperature stage, the exhaust temperature is controlled by fixing the opening degree of the air supply expansion valve. And in the medium temperature stage, a plurality of control intervals are divided according to the evaporation temperature, the target exhaust superheat degree of each interval is calculated, and the opening degree of the air supply expansion valve is adjusted accordingly. And in the high-temperature stage, the air supply expansion valve is fully opened, and the direction and the opening degree of the liquid spraying electric control valve are adjusted according to the exhaust temperature change trend. By collecting the water outlet temperature of the shell-and-tube heat exchanger, the exhaust temperature of the compressor and the suction pressure, the system accurately adjusts the action of each control valve, and the performance of the system at the low temperature is improved.

The application relates to the technical field of high polymer materials, and discloses a high-temperature-resistant PETG blister box and a preparation method thereof. The PETG blister box disclosed by the application comprises the following raw materials in parts by weight: PETG 50-70 parts, PET 10-15 parts, a composite modifier 8-12 parts, POE-g-GMA 12-16 parts, an antioxidant 0.5-1.5 parts, a lubricant 1-1.5 parts and a heat stabilizer 1-3 parts. The PET and the composite modifier are introduced into the blister box, and the two components synergistically improve the high-temperature resistance of the blister box. Therefore, the product can be widely used in the blister packaging field with high requirements for heat resistance, such as hot filling and high-temperature sterilization.

According to the absorption type cooling and heating unit, in the cold supply mode, the refrigerant pump can pump the refrigerant from the bottom of the evaporator to the top of the evaporator, in the heat supply mode, the refrigerant pump can pump the refrigerant from the refrigerant container to the generator, the cold supply mode and the heat supply mode share the same refrigerant pump, and therefore the production cost is saved. Besides, in the heat supply mode, the heating water enters the condenser without passing through the absorber, so that the pressure loss of the heating water is reduced, a user system can be provided with a heating water pump with lower pressure, and the use cost is saved. In addition, in the heat supply mode, the refrigerant is distributed in the generator in a spraying mode, the liquid distribution uniformity is good, and therefore the heat supply effect is improved.

This invention relates to the field of compression refrigeration technology, and discloses an air conditioning heat pump system and an air conditioner. The air conditioning heat pump system includes a compressor and a temperature regulating component; the temperature regulating component is installed on the outside of the compressor; during the start-up phase, the temperature regulating component heats the compressor; during the stable operation phase, the temperature regulating component cools the compressor. By installing a temperature regulating component on the outside of the compressor, this invention heats the compressor during the start-up phase, which is beneficial for the temperature rise of the lubricating oil inside the compressor and the uniformity of the overall machine temperature, facilitating the rapid attainment of compressor start-up conditions and reducing start-up failures. During the stable operation phase, the temperature regulating component cools the compressor, which helps to improve the service life of the motor inside the compressor, reduce the migration of refrigerant and lubricating oil inside the compressor, improve the compression process of the system, increase cooling and heating capacity, and reduce power consumption, thereby improving the system's energy efficiency under the premise of a fixed heat source.

The present invention discloses an air conditioner and a refrigerant regulating method for the air conditioner, an air conditioner refrigeration system, a refrigerant regulating device and a pressure sensing device, wherein the refrigerant regulating device includes a gas-liquid storage device, a first control valve and a second control valve. During the operation of the air conditioner, the flow rate of the refrigerant in the refrigeration system is detected; according to the flow rate of the refrigerant and the pressure value collected by the pressure sensing device, the opening of the throttling device in the refrigeration system and the on-off state of the first control valve and the second control valve are controlled to adjust the flow rate of the refrigerant in the refrigeration system. By adopting the technical means of the present invention, it is possible to adjust the flow rate of the refrigerant in the refrigeration system according to different actual loads during the operation of the air conditioner, taking into account the requirements of energy saving and low consumption while ensuring the output capacity, thereby improving the user experience.

The invention discloses a gas-liquid separation device and a vehicle, the gas-liquid separation device comprises an outer cavity, an inner cavity and a heat exchange assembly, the first end of the outer cavity is provided with a first inlet part, a second inlet part and an outlet part, the first inlet part is used for allowing a first refrigerant to flow in, and the second inlet part is used for allowing a second refrigerant to flow in; the inner cavity is arranged in the outer cavity, a first mixing area, a first heat exchange area and a first backflow area are sequentially defined between the inner side wall of the outer cavity and the outer side wall of the inner cavity, the first heat exchange area is communicated with the first mixing area and the first backflow area, and the first backflow area is communicated with the inner cavity. The first inlet part and the second inlet part are respectively communicated with the first mixing area, and the outlet part is communicated with the inner cavity; the heat exchange assembly comprises a heat exchange plate, the heat exchange plate is arranged in the first heat exchange area, and reversing holes are formed in the heat exchange plate. The gas-liquid separation device meets the ultralow temperature working condition and the heating working condition at the same time, and oil return, normal operation and the like of the compressor are guaranteed.

This invention relates to the field of greenhouse planting technology, providing a water circulation temperature control buffer system and control method for a solar greenhouse. The system includes an underground water storage tank, a main greenhouse structure, a water circulation component, and a control module. The water circulation component includes a circulation pump, a heat pump unit, and a temperature control unit. The circulation pump is located between the water storage tank and the water storage tank, forming a fluid loop. The heat pump unit is connected to the water storage tank via a circulation pipeline. The inlet of the temperature control unit is connected to the water storage tank, and the return end is connected to the water storage tank. The temperature control unit includes a heat dissipation module and a heat absorption module connected in parallel. The heat dissipation module cools the circulating water in the system, while the heat absorption module cools the interior of the main greenhouse structure. The water storage tank is higher than the temperature control unit. This invention utilizes the elevation difference to create a pressure difference to promote water circulation and achieves low-energy cooling through the heat absorption module, solving the problems of low thermal efficiency and high operating costs associated with other water circulation temperature control methods. The entire system has a simple structure, low cost, and is easy to manufacture and use.

The invention relates to the technical field of heat pump air conditioners, in particular to a heating structure and a heating method for an air supply loop of an enhanced vapor injection system. The heating structure comprises a compressor, a heating device and a bearing sliding rail, a waste heat concentration area is arranged on the periphery of a cylinder body of the compressor, the heating device comprises a heat storage shell, an air suction port and an air exhaust port are formed in the heat storage shell, and the heat storage shell is arranged outside the cylinder body of the compressor in a sliding mode through the bearing sliding rail. And a plurality of partition plates and heat exchange pipes are arranged in the heating device to form a heat exchange runner, so that the heat exchange efficiency is improved. In addition, the heating device is further provided with a connecting sliding strip, a stability maintaining guide strip and a locking piece, and stability and convenience are ensured. The system achieves the effects of effectively utilizing waste heat resources, improving the energy efficiency ratio of the system and reducing energy consumption.

The invention relates to a rotary-piston x-ray emitter, comprising a housing, a rotary-piston x-ray tube, which is rotatably mounted in the housing about an axis of rotation relative to the housing, and a magnetic deflection unit, wherein the magnetic deflection unit comprises at least one multipole and is arranged outside the rotary piston, the at least one multipole has at least four magnetic poles, the at least four magnetic poles are arranged around the axis of rotation and each comprise a coil winding, and the magnetic poles further define a multipole plane, the central axis of at least one multipole is centrally perpendicular to the multipole plane, characterized in that the at least one multipole is configured such that the central axis of the at least one multipole and the axis of rotation form a plane.

The utility model belongs to the technical field of heat exchange equipment, and particularly relates to a large-temperature-difference heat pump unit. A driving heat source inlet is connected with the regenerator and the high-temperature heat exchanger through pipelines, the evaporator is connected with the low-temperature heat exchanger through a pipeline, the evaporator is connected with a driving heat source outlet through a pipeline, and a heating water inlet is connected with the low-temperature heat exchanger through a pipeline. The condenser is connected with the absorber through a pipeline; the low-temperature heat exchanger is connected with the heating water outlet through a pipeline; the high-temperature heat exchanger is connected with the heating water outlet through a pipeline; and the absorber is connected with the heating water outlet through a pipeline. Through countercurrent flow heat exchange, the temperature of the heating water outlet of the large-temperature-difference heat pump unit is increased to 90 DEG C from 50-60 DEG C, higher outlet water temperature is achieved, the heat source utilization rate of the unit is greatly increased, and energy conservation and emission reduction are achieved.

The utility model relates to the technical field of low-voltage electric appliances, in particular to an arc extinguish chamber mounting structure and a circuit breaker. The arc extinguish chamber mounting structure comprises at least one limiting pin; an installation cavity used for containing an arc extinguish chamber is formed in a shell of the circuit breaker, at least one first clamping groove is formed in the inner cavity face of the installation cavity in a concave mode, at least one second clamping groove is formed in the outer wall face of the arc extinguish chamber in a concave mode, the first clamping grooves correspond to the second clamping grooves in a one-to-one mode, and a jack is defined by the corresponding first clamping groove and the corresponding second clamping groove. The limiting pins correspond to the inserting holes in a one-to-one mode, and each limiting pin is inserted into the corresponding inserting hole. According to the mounting structure provided by the utility model, the limiting pin is not inserted into the arc extinguish chamber, so that the internal space of the arc extinguish chamber is not influenced. Under the same arc extinguish chamber space, the installation structure provided by the invention can reduce the arc extinguish chamber space occupied by the installation of the arc extinguish chamber, so that the arrangement number of the grid sheets can be increased to the maximum extent, the heat capacity is improved, and the improvement of the arc breaking performance of the arc extinguish chamber is facilitated.

The utility model relates to the technical field of heat exchangers, and provides a manifold uniform-temperature cooling device which comprises a manifold fin body, the manifold fin body is composed of a uniform-temperature plate bottom cover, a uniform-temperature plate upper cover with fins, a manifold channel and a liquid side sealing shell, and the uniform-temperature plate bottom cover and the uniform-temperature plate upper cover with the fins are welded in a sealing mode. The working medium in the bottom cover of the vapor chamber is changed into gas through phase change heat absorption, the heat dissipation efficiency is high, the heat flux density is large, the surface temperature of a heat source can be more uniform, hot spots are reduced, the stability of equipment is improved, and the service life of the equipment is prolonged; the fins are additionally arranged on the upper cover with the fins of the vapor chamber, so that the heat dissipation area is increased, and the heat dissipation speed is increased; the liquid cooling liquid has the characteristics of high thermal conductivity and high heat capacity, and can quickly absorb heat on the fins and transfer the heat to the environment; the manifold channels are combined with the fins, so that the uniformity of flow distribution in the heat sink can be effectively improved, the pressure loss is reduced, and the heat exchange efficiency is improved.

This invention relates to the field of air conditioning technology and discloses a sewage source magnetic levitation centrifugal multi-split air conditioning system, including a first magnetic levitation centrifugal compressor and a second magnetic levitation centrifugal compressor. A gas-liquid separator is provided on one side of the first magnetic levitation centrifugal compressor, and a shell-and-tube heat exchanger is provided on the other side of the gas-liquid separator. The sewage source magnetic levitation centrifugal multi-split air conditioning system uses two magnetic levitation centrifugal compressors connected in parallel to increase the cooling capacity of the multi-split system. The magnetic levitation multi-split compressor does not require lubricating oil, overcoming the problem of difficult oil return due to long piping in ordinary multi-split air conditioner compressors. Based on the refrigeration principle and refrigerant characteristics, it overcomes the shortcomings of insufficient cooling capacity in existing multi-split air conditioning systems with the same configuration, improves the refrigeration cycle economy, and the heat exchanger of the indoor unit is a direct expansion type, that is, the refrigerant directly evaporates and exchanges heat with the air, which is more energy-efficient and makes the sewage source magnetic levitation centrifugal multi-split air conditioning system operate stably and reliably.