594results about "Superheaters" patented technology

The invention discloses a Carnot battery system coupled with an uninterrupted low-temperature heat source and an integrated optimization method of the Carnot battery system. The Carnot battery system comprises a high-temperature heat pump system, a heat storage system and a power circulation system, in the charging process, the high-temperature heat pump system operates, and waste heat of the uninterrupted low-temperature heat source module is improved into high-grade heat energy to be stored in the heat storage system through renewable energy source electric power; in the discharging process, the power circulation system operates, gradient utilization is conducted on heat energy stored in the heat storage system and an uninterrupted low-temperature heat source in the discharging stage, and generated mechanical energy is converted into electric energy through a generator and output to a power grid. The system configuration does not depend on the working medium type, and the comprehensive utilization rate of the uninterrupted low-temperature heat source and the back-and-forth efficiency of the Carnot cell are improved; according to the integrated optimization method, the working medium is coded to become a continuous variable capable of being synchronously optimized, and the optimal charge-discharge cycle working medium combination and system operation parameters suitable for different operation conditions can be obtained only through one-time optimization.

The invention discloses a pressure storage and heat storage coupled regenerative heat pump power storage system and a regulation and control method thereof. The system is composed of an electric-power generation integrated unit, an energy storage compression and energy release expansion integrated unit, an energy storage expansion and energy release compression integrated unit, a high-temperature heat exchanger, a backheating heat exchanger, a cold energy absorption heat exchanger, a heat storage and cold storage storage tank, a high-pressure gas storage tank and the like. And an energy storage / energy release loop, a heat storage / heat release loop, a cold storage / cold release loop and a pressure heat coupling loop are formed by connecting pipelines. In the energy storage mode, the compressor unit is driven by electric energy to conduct multi-stage compression, and compression heat and expansion cold are stored in the high-temperature storage tank and the low-temperature storage tank correspondingly. In the energy release mode, the heat storage medium and the cold storage medium are sequentially released to supply heat or cold to the circulating working medium, and the expansion unit is driven to drive the generator to generate electricity. According to the method, bidirectional operation of energy storage and energy release is achieved through valve switching and circulation control, and power output and load change are adjusted within a second level through a pressure-heat coupling mechanism.

The invention discloses a cross-supercritical CO2 high-temperature heat pump system and method for supplying steam above 300 DEG C. The cross-supercritical CO2 high-temperature heat pump system comprises a high-temperature compression heat pump subsystem and a steam flash evaporation and reheating subsystem. By adopting the oil-free CO2 compressor, the stable operation of the system under a high-temperature heat supply condition is ensured; by optimizing system configuration and adopting the two-stage heat regenerator design, the suction temperature is increased, and then the exhaust temperature is remarkably increased; and through a dynamic parameter optimization control strategy, system operation parameters are monitored in real time and adjusted in a self-adaptive manner. Under the combined action of the technical measures, efficient and stable output of high-temperature steam is achieved, low-grade waste heat is effectively recycled, dependence on primary energy is greatly reduced, and operation equivalent carbon emission in the steam supply process is reduced. The limitation of a traditional heat pump on the aspect of high-temperature heat supply is successfully overcome, an innovative and sustainable solution is provided for the field of high-temperature heat supply, and the heat pump has wide application prospects.

The present invention discloses a weather-resistant refrigeration system and a permafrost protection method applied to the Qinghai-Tibet Plateau, belonging to the field of permafrost protection technology. The refrigeration system includes a plurality of refrigeration units on the ground and a plurality of permafrost coolers in the permafrost. The refrigeration unit is provided with a plateau environmental performance improvement component, and the permafrost cooler is connected to the refrigeration unit; the protection method is to design a refrigeration system according to permafrost, control the refrigeration unit through a control component to cool the refrigerant and then transport it to the permafrost cooler for heat exchange with the permafrost, so that the temperature of the permafrost is reduced. The plateau environmental performance improvement component can make the refrigeration component adapt to the environment of drastic fluctuations in the plateau climate, and improve the weather resistance of the refrigeration system operation; the refrigeration system using an assembled structure is convenient for transportation and installation, and has an adaptive adjustment function for the plateau climate and the permafrost geological environment, ensuring the balance of refrigeration supply and demand and the permafrost protection effect.

The invention provides an easy-to-assemble backheating device for a solid elastic card, which comprises a sleeve, a plurality of solid elastic card material plates stacked in the sleeve and a pressure head for applying stress to the solid elastic card material plates, and the sleeve is composed of a plurality of parts and is used for inspecting or assembling and disassembling the plurality of solid elastic card material plates when being unfolded; each solid elastic clamping material plate is provided with a flow cavity after being stacked, a heat-conducting medium exchanges heat with the solid elastic clamping material plates through the flow cavities when heat or cold is generated, and the heat-conducting medium flows into a heat exchanger through a liquid through hole in the pressure head for heat exchange. The sleeve is designed to be a plurality of detachable parts or folding parts, during assembly, a plurality of solid elastic clamping material plates can be conveniently placed in, alignment is convenient, in the loading and unloading process, even if a certain solid elastic clamping material plate goes wrong, opening and inspection are convenient, and therefore the assembly efficiency is improved, and the fault solving efficiency is improved.

The invention discloses a weather-resistant refrigerating system applied to the Qinghai-Tibet Plateau and a permafrost protection method, and belongs to the technical field of permafrost protection.The refrigerating system comprises a plurality of refrigerating units on the ground and a plurality of permafrost cold conveying devices in permafrost, and each refrigerating unit is provided with a plateau environment performance improving assembly; the permafrost cold conveying device is connected with the refrigerating unit; according to the protection method, the refrigerating system is designed according to the permafrost, the refrigerating unit is controlled by the control assembly to cool the refrigerant, and then the refrigerant is conveyed to the permafrost cold conveying device for heat exchange with the permafrost, so that the temperature of the permafrost is reduced. Through the plateau environment performance improving assembly, the refrigerating assembly can adapt to the environment with severe fluctuation of plateau climate, and the weather resistance of operation of the refrigerating system is improved; the refrigerating system of an assembly type structure is convenient to transport and install, has a self-adaptive adjusting function aiming at the plateau climate and the permafrost geological environment, and guarantees the refrigerating capacity supply and demand balance and the permafrost protection effect.

A vehicle thermal management circuit includes a refrigerant line configured to cause refrigerant to flow in the order of a compressor, an indoor condenser and an outdoor heat exchanger of an indoor air-conditioning apparatus, a battery cooling line configured to circulate cooling water between a battery and a battery radiator or between the battery and a chiller unit, an electric part cooling line configured to circulate cooling water between an electronic driving unit and an electric part radiator or between the driving unit and the chiller, and an accumulation unit located at an upstream point of the compressor on the refrigerant line, includes an expansion valve and a refrigerant heater, and is configured to receive the refrigerant discharged from the chiller or the evaporator and provide the received refrigerant to the compressor or to expand or heat the refrigerant and provides the expanded or heated refrigerant to the compressor.

The invention discloses a two-section compression type transcritical carbon dioxide heat pump system and a control method thereof. An outlet of a second compressor sequentially passes through a high-temperature heat exchanger and a flow divider and then is divided into two paths; wherein one path is communicated with an inlet of a first expansion machine through a heat flow stream inlet valve of the first heat regenerator, the hot side of the first heat regenerator and the hot side of the second heat regenerator, and the other path is communicated with an inlet of a second expansion machine through a heat flow stream inlet valve of the third heat regenerator and the hot side of the third heat regenerator in sequence; the outlet of the second expansion machine is communicated with the inlet of the mixer through the cold side of the second heat regenerator, the cold stream inlet valve of the first heat regenerator and the cold side of the second heat regenerator in sequence; an outlet of the first expansion machine communicates with an inlet of the mixer through the low-temperature heat exchanger, a cold stream inlet valve of the third heat regenerator, the cold side of the third heat regenerator and the first compressor, an outlet of the mixer communicates with an inlet of the second compressor, and the comprehensive energy efficiency of the carbon dioxide heat pump system can be improved.

The invention relates to the technical field of compressed carbon dioxide energy storage, and provides a double-liquid-state storage compressed carbon dioxide energy storage system, which comprises a heat pump loop, a first multi-stream heat regenerator, a compressor, a cooler and a first turbine, a second multi-stream heat regenerator, a second multi-stream heat regenerator, a second multi-stream heat regenerator, a second multi-stream heat regenerator, a second multi-stream heat regenerator, a second multi-stream heat regenerator and a second turbine, and the power generation loop comprises a high-pressure CO2 liquid storage tank, a high-pressure working medium pump, a second multi-stream heat regenerator, a heater, a second turbine, a precooler and a condenser. CO2 flows in the heat pump loop and the power generation loop to serve as a working medium, and low-pressure CO2 liquid and high-pressure CO2 liquid are stored in the low-pressure CO2 liquid storage tank and the high-pressure CO2 liquid storage tank and used for the heat pump loop and the power generation loop respectively. By using the CO2 liquid, the pressure in the tank can be maintained during release, the output flow is ensured, and the output of the system is stable. And meanwhile, CO2 liquid can be output through the high-pressure working medium pump, pressure loss caused by throttling is avoided, and the energy storage efficiency is improved. And through liquid storage tank storage, the storage tank volume can be reduced, and the energy storage cost is reduced.

The air inlet and return pipe comprises an air inlet and return pipe body and end nuts connected to the two ends of the air inlet and return pipe body, the air inlet and return pipe body is of a bilateral symmetry structure, and internal threads are arranged on the inner circumferential surfaces of the end nuts connected to the two ends; the air inlet and return pipe body is of a double-layer structure, the outer layer is a woven mesh made of stainless steel, and the inner layer is a fluoroplastic hose. End supports are respectively arranged at the joints of the two ends of the air inlet and return pipe main body and the end nuts, and are used for connecting the air inlet and return pipe main body and the end nuts; the length of the end portions of the two sides of the fluoroplastic hose is slightly larger than that of the woven mesh, and a turnup structure is formed at the end supporting position so that a sealing structure can be formed when the end nut is in threaded connection with other parts, the flexibility of the air inlet and return pipe of the pulse tube refrigerator is guaranteed, vibration can be greatly reduced, meanwhile, gas flow resistance is reduced, and working efficiency and refrigerating capacity are improved.

The utility model provides a high-power refrigerating and heating device, which belongs to the technical field of refrigerating and heating and comprises a power mechanism, a multi-linkage transmission mechanism and a plurality of solid elastic clamping heat regenerators. The multi-linkage transmission mechanism is provided with a power input end and a plurality of power output ends, and the power input end is connected with the power mechanism; and the plurality of solid elastic clamping heat regenerators are respectively connected with different power output ends on the multi-linkage transmission mechanism so as to refrigerate or heat under the driving of the power output ends. According to the multi-linkage transmission mechanism, a set of power mechanism can be utilized to drive a plurality of solid elastic clamping heat regenerators suitable for operation of elastic clamping materials to conduct refrigeration or heating, then the solid elastic clamping heat regenerators are gathered, and enough heating capacity or refrigerating capacity can be obtained; in this way, the problem that materials cannot bear the heat due to the fact that the solid elastic clamping heat regenerator is designed to be too large can be solved, enough heating capacity or refrigerating capacity can be provided, and the requirements in practical application are met.

The invention provides a heat regeneration device and a refrigerating and heating device, the heat regeneration device comprises a sleeve and solid elastic clamping material plates, the inner wall of the sleeve comprises protrusions, the multiple solid elastic clamping material plates are stacked in the sleeve, each solid elastic clamping material plate comprises a groove, a space formed by stacking the multiple grooves is used for containing the protrusions on the inner wall of the sleeve, and the protrusions are arranged on the inner wall of the sleeve. After the grooves are stacked, gaps between the grooves and the protrusions form flow cavities for heat conduction fluid to flow through. The protrusions are arranged on the inner wall of the sleeve and extend into the grooves of the solid elastic clamping material plate, the position of the solid elastic clamping material plate can be fixed, the flow resistance of gaps between the grooves and the protrusions is small, and the heat conduction efficiency is improved. In addition, the contact area between the flow cavity and the solid elastic clamping material is large, and the heat conduction efficiency of the heat conduction fluid is further improved.

The utility model provides an easy-to-assemble heat regeneration device of a solid elastic card and a refrigerating and heating device.The easy-to-assemble heat regeneration device of the solid elastic card comprises a sleeve, a plurality of solid elastic card material plates stacked in the sleeve and a pressing head for applying stress to the solid elastic card material plates, the sleeve is composed of a plurality of parts, and the pressing head is connected with the sleeve. When being unfolded, the plurality of solid elastic clamping material plates are inspected or assembled and disassembled; each solid elastic clamping material plate is provided with a flow cavity after being stacked, a heat-conducting medium exchanges heat with the solid elastic clamping material plates through the flow cavities when heat or cold is generated, and the heat-conducting medium flows into a heat exchanger through a liquid through hole in the pressure head for heat exchange. According to the utility model, the sleeve is designed into a plurality of detachable parts or folding parts, so that a plurality of solid elastic clamping material plates can be conveniently put in and aligned during assembly, even if a certain solid elastic clamping material plate goes wrong in the loading and unloading process, the solid elastic clamping material plate can be conveniently opened for inspection, the assembly efficiency is improved, and the fault solving efficiency is also improved.

The utility model discloses a multi-system collaborative defrosting air source heat pump unit and an air conditioning system, and the heat pump unit comprises a first refrigerant circulating system and a second refrigerant circulating system, each of the first refrigerant circulating system and the second refrigerant circulating system comprises an evaporator, a compressor, a shell-and-tube heat exchanger, an electronic expansion valve, a one-way valve, an economizer, a three-way valve, an electromagnetic valve, a gas-liquid separator and a liquid reservoir. The evaporator is formed by connecting fins of a first V-shaped fin heat exchanger and a second V-shaped fin heat exchanger in parallel, each fin of the V-shaped fin heat exchangers is connected with a three-way valve in series, and independent switching control over the refrigerating mode, the heating mode and the defrosting mode of each fin heat exchanger is achieved. The water side shell-and-tube heat exchanger is connected with the fin type heat exchanger in parallel, and uninterrupted heating is achieved while defrosting is achieved. The heat pump unit can achieve four operation modes of refrigeration operation, heating operation, defrosting operation of the first V-shaped fin heat exchanger and defrosting operation of the second V-shaped fin heat exchanger through the control system.

The invention relates to the technical field of sample storage, particularly provides a cascade refrigeration system and a control method of an ultralow-temperature sample library, and aims to solve the problem that normal operation of a unit is affected due to abnormal oil return of an existing cascade refrigeration system. In order to achieve the purpose, the cascade refrigeration system comprises a high-temperature-stage refrigeration unit, a low-temperature-stage refrigeration unit and an intermediate heat exchanger, the low-temperature-stage refrigeration unit comprises a low-temperature compressor, an oil separation device and a heat exchange device, the oil separation device comprises a plurality of oil separators arranged in sequence, and a heat exchanger is arranged between every two adjacent oil separators; the low-temperature compressor, the oil separation device, the intermediate heat exchanger and the heat exchange device are communicated with one another to form a low-temperature-stage refrigerant circulation loop, and the high-temperature-stage refrigeration unit and the intermediate heat exchanger are communicated with one another to form a high-temperature-stage refrigerant circulation loop. The oil separation efficiency can be improved, deep oil removal is achieved, and oil return is remarkably improved.

The invention discloses a decarburization coal power system coupled with a reversible Brayton cycle heat pump and a method thereof. The decarburization coal power system comprises a coal-fired power generation subsystem used for converting heat into electric energy, a decarburization subsystem used for treating carbon dioxide emission and a heat pump heat storage subsystem used for improving the energy utilization efficiency. Exhausted smoke of a boiler in the coal-fired power generation subsystem passes through a smoke steam cooler in the decarburization subsystem and then enters an absorption tower; the coal-fired power generation subsystem sends high-temperature steam generated by a boiler into the heat pump heat storage subsystem through a high-pressure cylinder and an intermediate-pressure cylinder, and the heat pump heat storage subsystem stores high-temperature molten salt after heat absorption into a high-temperature storage tank. The system has the beneficial effects that the heat pump heat storage subsystem is constructed through the reversible Brayton cycle, supercritical carbon dioxide is adopted as a cycle working medium, and a phase change material and molten salt are adopted as heat storage media, so that the energy storage density is improved, and the stability and high efficiency of the heat storage and release process are guaranteed; therefore, the system can better adapt to fluctuation of the power grid load, and quick response is realized.

A method for controlling a three-way valve that diverts return refrigerant from a first compressor to a second compressor or a third compressor, the second and third compressor in parallel includes obtaining a temperature of the return refrigerant indicating a degree of superheat of the return refrigerant. The method also includes determining if the three-way valve should be transitioned into a first position, transitioned into a second position, or maintained in a current one of the first position or the second position. The method also includes transitioning the three-way valve into the first position or the second position, or maintaining the three-way valve in the first position or the second position. In the first position, the first compressor provides the return refrigerant to the second compressor through the three-way valve and in the second position, the first compressor provides the return refrigerant to the third compressor through the three-way valve.

The application provides a single magnetic field operated high-efficiency regenerative full solid-state magnetic refrigeration device, which comprises at least one refrigeration unit, and the refrigeration unit comprises parallel arranged refrigeration layers and regenerative layers, wherein the refrigeration layer comprises a plurality of refrigeration pieces which are embedded in a first heat insulation material at intervals; the regenerative layer comprises a plurality of regenerative pieces which are embedded in a second heat insulation material, wherein refrigeration piece / regenerative piece=1, and the refrigeration unit is arranged so that the refrigeration layer and the regenerative layer make reciprocating translational motion respectively during operation, and the refrigeration pieces and the regenerative pieces have heat conduction therebetween. The magnetic refrigeration device of the application can operate under a single simple continuous magnetic field, the requirement for magnets is reduced, the device is more economical and environmentally friendly, and the device uses a plurality of regenerative pieces, the plurality of regenerative pieces simultaneously perform heat conduction at two motion terminals of cold and hot ends, the regenerative efficiency is greatly improved, and thus the regenerative factor and the refrigeration power density are improved.

The invention relates to the technical field of physical energy storage, and discloses a compressed carbon dioxide energy storage multi-combined supply system capable of continuously supplying cold and an operation method of the compressed carbon dioxide energy storage multi-combined supply system. In the carbon dioxide loop, the energy storage route comprises a low-pressure air bag, a first heat regenerator, a compressor, a cooler, a condenser and a high-pressure storage tank which are connected in sequence; the energy release route comprises a high-pressure storage tank, a second heat regenerator, a heater, a turbine, a radiator and a low-pressure air bag which are connected in sequence; the heat storage loop absorbs heat to the cooler through a heat storage medium and releases heat to the heater through the heat storage medium; and the refrigerating circuit releases heat to the first heat regenerator and the second heat regenerator through a refrigerating working medium. In the off-peak electricity period, waste heat of the refrigerating loop is used for increasing the temperature of carbon dioxide at an inlet of the compressor, and the heat storage temperature can be increased; in the peak electricity period, waste heat of the refrigerating loop is used for meeting heat needed in the carbon dioxide gasification process, and consumption of the heat storage loop is reduced.

The invention relates to a refrigerating system, refrigerating equipment and a control method, the refrigerating system comprises a compressor (1), a condenser (2) and a heat exchange device (3), and in a refrigerating mode of the refrigerating system, the condenser (2), the compressor (1) and the heat exchange device (3) are configured to form a refrigerant circulation loop; an ejector (4), a nozzle of the ejector (4) is connected with the condenser (2), an injection area of the ejector (4) is connected with the heat exchange device (3), and the ejector (4) is configured to mix refrigerants from the heat exchange device (3) and the condenser (2) and increase the pressure of the refrigerants; and a cold storage device (5) which is connected to the outlet of the ejector (4) and the inlet of the compressor (1), and which is configured to store or discharge the cold of the refrigerant from the outlet of the ejector (4).

A combined heat exchanger, a heat exchange system, and an optimization method thereof are provided. The heat exchange system includes: an enhanced vapor injection compressor, a condenser, an expansion valve and an evaporator, which are located in a main circuit; wherein the heat exchange system further includes a first branch branched from the main circuit to an vapor injection port of the compressor at a branch point P downstream of the condenser, and a first heat exchange unit and a second heat exchange unit are further provided in the main circuit between the branch point P and the expansion valve; and wherein a refrigerant leaving the condenser is divided at the branch point P into a first portion passing through the first heat exchange unit and the second heat exchange unit from the main circuit, and a second portion passing through the first branch to the vapor injection port.

The invention relates to the technical field of compression refrigeration, in particular to an air conditioner heat pump system and an air conditioner. The air conditioner heat pump system comprises a heat regenerator and a throttling component. The heat regenerator is provided with a first heat regeneration pipe and a second heat regeneration pipe; the throttling component is arranged on a refrigerant channel between the condenser and the evaporator and communicates with the first heat return pipe and the second heat return pipe. And under the refrigerating working condition and the heating working condition, the refrigerant before throttling enters the first heat return pipe, and the refrigerant after throttling enters the second heat return pipe, so that the refrigerant in the first heat return pipe exchanges heat with the refrigerant in the second heat return pipe. According to the heat exchanger, through the throttling component, a refrigerant before throttling can enter the first heat return pipe, the refrigerant after throttling can enter the second heat return pipe, and the refrigerant in the first heat return pipe exchanges heat with the refrigerant in the second heat return pipe, so that the refrigerant in the first heat return pipe is reduced, and the supercooling degree of the refrigerant is improved; the problem that in the prior art, an air conditioner heat pump system cannot improve the supercooling degree of a refrigerant under the heating working condition is solved.

The invention provides a turbine self-cooling combined cycle system for a supercritical carbon dioxide Brayton cycle. The turbine self-cooling combined cycle system comprises a Brayton cycle system, a heat pump heat supply system and a turbine cooling branch. Wherein the Brayton cycle system is constructed to perform Brayton cycle by taking supercritical carbon dioxide as first working medium gas, output mechanical energy through the turbine assembly and output electric energy through the energy conversion assembly; the heat pump heat supply system is configured to take carbon dioxide as second working medium gas to output heat at the heat output end; the turbine cooling branch is configured to be connected with the Brayton cycle system and the heat pump heat supply system, the turbine cooling branch is configured to lead out at least part of first working medium gas as exchange gas and convey the exchange gas to the heat pump heat supply system, and at least part of second working medium gas as cooling gas and convey the cooling gas to the turbine assembly; therefore, self-cooling of the turbine assembly is achieved, and the first working medium gas is supplemented to the Brayton cycle system.

The utility model discloses a heat exchanger assembly, a heat exchange system and a vehicle. The heat exchanger assembly is used for the heat exchange system and comprises a heat exchange part, a first air cooler and a second air cooler, the heat exchange part forms a first sub-runner and a second sub-runner which are thermally coupled with each other, and an outlet of a compressor of the heat exchange system is connected with an inlet of the second air cooler through the first sub-runner. And the outlet of the second air cooler is connected with the inlet of the first air cooler through a second sub-runner. Thus, the medium-temperature and high-pressure refrigerant flowing out of the outlet of the second air cooler is heated again in the second sub-runner and the first sub-runner of the heat exchange piece and then enters the first air cooler, so that the high-temperature and high-pressure refrigerant in the first air cooler can preheat low-temperature air, and then the load of the first air cooler is reduced; the service life of the first air cooler is prolonged, and when the low-temperature air is subjected to secondary heat exchange in the first air cooler, the temperature of the air at the outlet of the first air cooler is uniform.

The utility model provides a top pressure power transmission mechanism and a refrigerating and heating device, and belongs to the technical field of transmission equipment. The jacking power transmission mechanism comprises a driving rod and a pressing head, and the jacking head is arranged at one end of the driving rod; the pressing head is provided with a bearing groove, and the jacking head can abut against the bottom of the bearing groove so that jacking power can be transmitted to the pressing head through the driving rod. The refrigerating and heating device comprises a power mechanism, the top pressure power transmission mechanism and a solid elastic clamping heat regenerator. The power mechanism is used for outputting power. The jacking power transmission mechanism is matched with the power mechanism so as to receive power output by the power mechanism; and the solid elastic clamping heat regenerator is connected with a pressure head of the jacking power transmission mechanism so as to refrigerate or heat under the driving of the pressure head. Under the working conditions of large bearing capacity and long-term abrasion, the conditions of fracture and failure cannot occur, and therefore stable transmission of jacking power can be achieved.

The utility model provides a heat regeneration device and a refrigerating and heating device, the heat regeneration device comprises a sleeve and solid elastic clamping material plates, the inner wall of the sleeve comprises protrusions, the multiple solid elastic clamping material plates are stacked in the sleeve, each solid elastic clamping material plate comprises a groove, a space formed by stacking the multiple grooves is used for containing the protrusions on the inner wall of the sleeve, and the protrusions are arranged on the inner wall of the sleeve. After the grooves are stacked, gaps between the grooves and the protrusions form flow cavities for heat conduction fluid to flow through. The protrusions are arranged on the inner wall of the sleeve and extend into the grooves of the solid elastic clamping material plate, the position of the solid elastic clamping material plate can be fixed, flow resistance of gaps between the grooves and the protrusions is small, and heat conduction efficiency is improved. In addition, the contact area between the flow cavity and the solid elastic clamping material is large, and the heat conduction efficiency of the heat conduction fluid is further improved.

The application discloses a carbon dioxide refrigeration heat pump system and a composite control method of the carbon dioxide refrigeration heat pump system. The carbon dioxide refrigeration heat pump system comprises a first compressor, a second compressor, a third compressor, a water cooler, a first regenerator, a first throttling valve, a flash tank, a second throttling valve, an evaporator, a liquid storage barrel, a flash bypass valve and a second regenerator which are connected and matched with each other. The carbon dioxide refrigeration heat pump system and the composite control method have the advantages that the design is scientific, the working condition of the carbon dioxide refrigeration heat pump system can be accurately controlled, the control precision is improved, the working condition energy efficiency is obviously improved, the operation efficiency of the working condition is ensured, and the application has great practical significance. The composite control method of the carbon dioxide refrigeration heat pump system specially designed by the application is a dimension reduction decoupling control method for coping with the operation of a complex system with variable working conditions.

The invention relates to a magnetic suspension temperature adjusting system, a control method, a processor and a storage medium. The magnetic suspension temperature adjusting system comprises a control unit and a magnetic suspension heat pump unit. The control unit is configured to determine the operation parameters of the magnetic suspension heat pump unit according to the current state parameters of the magnetic suspension heat pump unit in the operation state so as to dynamically adjust the operation mode of the magnetic suspension heat pump unit; and the magnetic suspension heat pump unit is configured to operate according to the operation mode determined by the control unit. The energy efficiency of the magnetic suspension heat pump unit can be improved, the operation noise can be reduced, oil-free lubrication is achieved, and the service life of equipment is prolonged; and meanwhile, the control unit can adjust the operation mode of the magnetic suspension heat pump unit, so that the working parameters of the magnetic suspension heat pump unit can dynamically adapt to environmental changes to adapt to complex working conditions.

The invention provides a heat regeneration device based on solid elastic clamping refrigeration and heating and a refrigeration and heating device. The heat regeneration device comprises a fixing mechanism, solid elastic clamping refrigeration and heating materials with penetrating holes, a driving mechanism and a sleeve, and the fixing mechanism and the driving mechanism are arranged in the sleeve; the driving mechanism comprises a dynamic pressure head provided with a through hole, and the dynamic pressure head extends into the fixing mechanism to load or unload stress on the solid elastic clamping refrigerating and heating material; the penetrating holes in the solid elastic card refrigerating and heating materials are arranged to form a cavity channel, and the cavity channel is communicated with the through hole and used for enabling heat conduction fluid to exchange heat generated by the solid elastic card refrigerating and heating materials when the heat conduction fluid flows. The fixing mechanism is used for fixing the solid elastic clamping material plates, movement of the solid elastic clamping material plates is limited, dislocation is formed, meanwhile, the dynamic pressure head of the driving mechanism stretches into the fixing mechanism to apply stress to the solid elastic clamping material plates, it can be ensured that all the solid elastic clamping material plates generate phase change, and the refrigerating and heating efficiency is improved.

The invention belongs to the related technical field of refrigerating and heating equipment, and discloses a carbon dioxide air conditioner heat pump system integrated with a multi-way valve, which comprises the multi-way valve, an ejector, a first indoor heat exchanger, a second indoor heat exchanger, a gas-liquid separator, an outdoor heat exchanger, a compressor, a throttle valve and a four-way reversing valve, four valve ports of the four-way reversing valve are respectively connected to an inlet of the outdoor heat exchanger, an exhaust port of the compressor, an outlet of the throttle valve and an inlet of the second indoor heat exchanger; a gas outlet of the gas-liquid separator is connected to a gas suction port of the compressor; the multi-way valve is an eight-way valve and is provided with eight connectors which are connected with the ejector, the gas-liquid separator, the first indoor heat exchanger, the outdoor heat exchanger and the second indoor heat exchanger correspondingly, the communication state between the connectors of the multi-way valve is changed by adjusting a valve element of the multi-way valve, and the flow direction of refrigerants is changed. Therefore, the system can be switched between a refrigerating mode and a heating mode. According to the invention, the complexity and cost of the system are reduced.