4457results about "Refrigeration components" patented technology

An embodiment is a heat pump system for a vehicle, including a first cooling device including a first radiator, a first water pump, and a first valve connected by a first coolant line, a second cooling device including a second radiator and a second water pump connected by a second coolant line, a third cooling device including a third coolant line connected to the second cooling device through a first valve, a third water pump provided on the third coolant line, and a battery module and, a chiller provided on the third coolant line, and a gas injection device configured to selectively expand a refrigerant supplied from an internal condenser included in an air conditioner and supply the expanded refrigerant to a heat exchanger of the air conditioner, and selectively supply a portion of the refrigerant to a compressor.

In an embodiment, a thermal management system for a vehicle includes a refrigerant circuit having a compressor, a condenser, an expansion valve, and an evaporator, all connected via refrigerant lines, so that refrigerant passes and circulates therethrough, a coolant circuit having a water pump, a chiller, a water heater, a heater core, and a battery coolant passage through a coolant line, a bypass line installed to connect a refrigerant line between the compressor and the condenser to a refrigerant line between the expansion valve and the evaporator, a branch line branched from the bypass line and connected to the coolant line of the coolant circuit through the chiller, and a valve device configured to control a flow of the refrigerant so that the refrigerant circulating along the refrigerant line flows by selectively passing through the bypass line, the branch line, and the chiller.

The invention discloses an ocean temperature difference coupled offshore constant-pressure compressed carbon dioxide energy storage system and method, and relates to the technical field of compressed gas energy storage. The system comprises a working medium constant-pressure storage device, a carbon dioxide energy storage circulation loop, a carbon dioxide energy release circulation loop and a heat storage circulation loop. Gaseous carbon dioxide is condensed into a liquid state by utilizing deep sea low-temperature seawater in an energy storage stage, liquid carbon dioxide is evaporated into a gaseous state by utilizing shallow sea high-temperature seawater in an energy release stage, and gas-liquid conversion of carbon dioxide is realized by fully utilizing ocean new energy and ocean temperature difference; the flexible working medium constant-pressure storage device is used for storing low-pressure gaseous carbon dioxide and high-pressure liquid carbon dioxide, the constant pressure of the working medium constant-pressure storage device in the charging and discharging process can be guaranteed, and efficient and stable operation of the system is achieved. Efficient liquefaction and high-density storage of high-pressure carbon dioxide are achieved through the ocean temperature difference and seawater static pressure, the efficiency and energy density of the energy storage system are improved, and deep development of offshore resources is achieved.

A heat pump system for a vehicle is configured to perform cooling or heating of the vehicle interior by using a natural refrigerant, and efficiently adjust the temperature of the battery module by using a single chiller that heat-exchanges refrigerant and coolant.

A heat pump system for a vehicle may efficiently adjust the temperature of heating elements by using one chiller where a refrigerant and a coolant exchange heat. At the same time, the heat pump system may efficiently perform cooling and heating of a rear seat by using a rear heating, ventilation, and air conditioning (HVAC) module provided with one heat-exchanger.

The present invention relates to an integrated cooling module including a central manifold having a mounting space in which components may be mounted, refrigerant flow channels in which a refrigerant may flow, and communication holes for allowing the components and the refrigerant flow channels to communicate with one another, such that the components are integrated around the central manifold, thereof excluding hoses or pipes and achieving miniaturization and weight reduction of an entire cooling system.

A heat pump system for a vehicle may efficiently adjust the temperature of heating elements by using a chiller where a refrigerant and a coolant exchange heat. At the same time, the heat pump system may efficiently perform cooling and heating of a rear seat by using a rear heating, ventilation, and air conditioning (HVAC) module provided with a heat-exchanger.

The utility model relates to the technical field of automatic defrosting, and provides an automatic defrosting mechanism of an air source heat pump, which comprises an air source heat pump body and a heat exchange evaporator, the heat exchange evaporator comprises a heat exchange fin, a defrosting pipe is fixedly mounted on the heat exchange fin, the air source heat pump body is communicated with a cold water pipe and a hot water pipe, and the cold water pipe is communicated with the hot water pipe. A heat preservation heating box is fixed to the outer wall of the air source heat pump body and communicated with a first water guide pipe, the first water guide pipe is communicated with one end of the defrosting pipe, the hot water pipe is further communicated with a water inlet pipe, the water inlet pipe is communicated with the heat preservation heating box, and the communication position is controlled by an electromagnetic control valve. The second water guide pipe communicates with a one-way water valve. The water inlet pipe is additionally arranged on the hot water pipe of the automatic defrosting mechanism of the air source heat pump and matched with the first water guide pipe, the defrosting pipe and the second water guide pipe, the heat exchange evaporator is defrosted, it is guaranteed that the heat exchange evaporator makes full contact with outside air, and the working efficiency of the heat exchange evaporator is not affected.

The invention relates to the technical field of refrigeration equipment control, in particular to an air conditioner control method and system. Firstly, a refrigerant flow prediction model is established by combining the advantages of LSTM and XGBoost, a time sequence and static characteristics are accurately captured, prediction precision and system adaptability are improved, reliable data support is provided for intelligent regulation and control, refrigerant distribution is optimized, energy efficiency is improved, and energy consumption is reduced; secondly, the opening degree of an electronic expansion valve and the frequency of a compressor are controlled in a feedforward mode through a multivariable cooperative control algorithm, the load and the flow are accurately matched, the system efficiency is improved, it is ensured that all assemblies operate in a coordinated mode, energy waste is reduced, and stability and comfort are optimized; finally, PID feedback control is combined, the frequencies of the electronic expansion valve and the compressor are finely adjusted in real time, the optimal energy efficiency and stability of the system are ensured, closed-loop control is achieved, the temperature control precision is further improved, fluctuation is reduced, and the energy efficiency is optimized.

The invention relates to the technical field of refrigeration facility operation monitoring, in particular to a refrigeration facility health trend diagnosis method and system based on real-time equipment monitoring, and the method comprises the steps: obtaining the filtering process vibration data of a dry filter in a refrigeration system, and generating a filtering vibration health index; judging whether the dry filter vibrates abnormally or not according to the filtering vibration health index; if not, dry filtering state data of a dry filter in the refrigerating system are obtained, and a pressure drop deviation trend factor is generated according to the dry filtering state data; whether the pressure drop deviation trend factor is larger than or equal to a standard pressure drop trend threshold value or not is judged, if yes, a filter health diagnosis abnormity instruction is generated, and refrigeration facility management personnel are instructed to conduct maintenance according to the filter health diagnosis abnormity instruction. Rapid health diagnosis based on vibration monitoring is realized, and multi-dimensional judgment of the health state of the refrigeration system facility is realized by combining the pressure drop factor.

A process for manufacturing a device and the device for damping pressure pulsations for a compressor of a gaseous fluid, in particular a refrigerant, in a refrigerant circuit of a motor vehicle air-conditioning system. The device exhibits a housing that encompasses a chamber and features at least two outlet openings. Here, the housing is constructed between tubular connecting lines, whose ends are aligned with one another. An insert element for reducing the cross-sectional area of the pass-through opening is arranged inside at least one of the pass-through openings.

An embodiment heat pump system for a vehicle includes a compressor for compressing a refrigerant, a condenser connected to the compressor, a heat exchanger connected to the condenser, a first expansion valve connected to the heat exchanger, an evaporator connected to the first expansion valve, a first refrigerant connection line having ends connected between the compressor and the evaporator and between the heat exchanger and the first expansion valve, a chiller and a second expansion valve on the first refrigerant connection line, and a gas injection device for selectively expanding and flowing the refrigerant supplied from the condenser or the heat exchanger and for selectively supplying a portion of the refrigerant to the compressor to increase a flow rate of the refrigerant, wherein the flow of the refrigerant is controlled according to a mode for controlling a temperature of a vehicle interior or a battery module.

A method for controlling a dehumidifier is provided. The dehumidifier may include a dehumidifying module having a compressor, a condenser, an expansion valve, an evaporator, and a fan module. The method may include determining by an occupancy sensor whether an occupant is present in an indoor space in which the dehumidifier is located; operating the compressor at a low speed when the occupancy sensor determines that an occupant is present in the indoor space; operating the compressor at a constant or high speed when the occupancy sensor determines that there are no occupants in the indoor space; and stopping operation of the compressor when an indoor humidity reaches a target humidity.

The invention discloses a four-way valve assembly, a heating and ventilation equipment outdoor unit and heating and ventilation equipment, and relates to the technical field of heating and ventilation equipment. The four-way valve assembly comprises a valve body, a plurality of electric appliance parts and a switching part, the plurality of electric appliance parts are in telecommunication connection with the switching part through a first line, and then the switching part is in telecommunication connection with the control device through a second line, so that telecommunication connection between the plurality of electric appliance parts and the control device is achieved. Compared with an original mode that a plurality of electric appliance parts are in one-to-one telecommunication connection with the control device through a plurality of circuits, the complexity of the circuits can be reduced, so that the internal space of a machine body of the outdoor unit of the heating and ventilation equipment is saved, and the size and the production cost of the machine body are reduced.

A heat pump system for a vehicle may efficiently adjust the temperature of heating elements by using a chiller where a refrigerant and a coolant exchange heat. At the same time, the heat pump system may efficiently perform cooling and heating of a rear seat by using a rear heating, ventilation, and air conditioning (HVAC) module provided with a heat-exchanger.

The invention belongs to the technical field of dry filters, and particularly relates to an easy-to-clean dry filter for refrigeration equipment, the easy-to-clean dry filter comprises a shell, a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet are mounted on two sides of the shell, two convex plates are mounted in the shell, mesh plates I are slidably mounted on the two convex plates respectively, spacer sleeves are mounted on the mesh plates I, and the spacer sleeves are mounted on the mesh plates II; the area between the two protruding plates is divided into a transmission cavity and a drying cavity through the spacer sleeve, and a speed reduction tooth set is installed in the transmission cavity and connected with the first mesh plate. After the air cylinder is started, under the condition that a sliding rod on the second mesh plate is in sliding fit with a chute, the first mesh plate drives the second mesh plate to rotate, so that through holes in the second mesh plate gradually coincide with through holes in the first mesh plate, the flow speed of a refrigerant passing through the second mesh plate and the first mesh plate is increased, and meanwhile, under the action of a speed reduction tooth set, the refrigerant is prevented from falling off. And the space between the drying cavities is gradually increased, so that the refrigerant passes through each part of the drying agent, and small pulverized particles of the drying agent are brought out.

The invention relates to the technical field of automobile air conditioners, in particular to an integrated automobile air conditioner liquid storage device which comprises a main tank body, a liquid storage bin and a central integrated cylinder which are of a concentric circle multi-layer coating structure, and further comprises a central mounting bin arranged in the center of the inner side of the main tank body, and the central integrated cylinder is arranged on the inner side of the central mounting bin in a nested and sliding mode; and the quick-release connecting base is arranged at the bottom of the central integrated cylinder, a quick-release connecting port is formed in the bottom of the central mounting bin, and the central integrated cylinder is detachably connected with the main tank body through the quick-release connecting base and the quick-release connecting port. The gas-liquid separation bin, the filtering bin and the drying bin are sequentially stacked, integrated, connected and arranged in the center integration cylinder, the center integration cylinder is detachably connected with the main tank body through the quick-release connecting base and the quick-release connecting port, the center integration cylinder can be quickly disassembled and assembled under the condition that no complex tool is needed, drying agents can be conveniently and independently replaced, and the drying efficiency is improved. And the maintenance and replacement processes are simplified.

An air conditioning system is provided. The air conditioning system includes an air compressor, a battery, a generator, a blower, and a turboexpander. The air compressor generates pressurized air from ambient air. The battery is for powering the air compressor motor. The generator is electrically connected to the battery. The turboexpander includes a drive shaft, a turbine wheel coupled to the drive shaft, and an expander coupled to the drive shaft. The pressurized air provides a source of kinetic energy to directly cause the turbine wheel to rotate and generate boosted air from the pressurized air, and the boosted air from the turbine wheel is configured to be received in the expander wheel and directly cause the expander wheel and the drive shaft to rotate together with the turbine wheel, thereby generating expanded and cooled air in the expander wheel.

A refrigerated portable room system including a refrigerated room, air conditioning unit, insulated supply and exhaust hoses, and bumpers that are situated around the perimeter of the floor of the refrigerated room. The air conditioning unit supplies cooled air to the refrigerated room, which is sealed as to the exterior environment. The walls, floor and roof of the refrigerated room are comprised of two layers of a vinyl-coated polyester material with a continuous filament insulation batting contained between them. The inner structure is made up of modules, each module being comprised of a plurality of vertically aligned horizontal shelves that are connected by stackers and legs to form horizontal levels and aligned so as to form longitudinally oriented compartments. The front wall has a front flap for each horizontal level, and the front surface of each front flap has one or more windows that are configured to receive documents.

Disclosed is a marine fuel cell-based integrated heat, electricity, and cooling supply system comprising a power supply system and a waste heat recovery system; the power supply system comprises wind turbine generator sets, solar generator sets, and a fuel cell power module; the waste heat recovery system encompasses a turbine power generation module and a lithium bromide refrigeration module; the fuel cell power module is connected to both the turbine power generation module and the lithium bromide refrigeration module; the turbine power generation module is used to generate electricity using waste heat. This approach fully exploits the waste heat from the exhaust gas generated by the fuel cell power module, resulting in a high overall energy utilization rate. The self-consumption electricity and pure hydrogen fuel for the integrated energy supply system can be obtained from solar and wind energy, ensuring low carbon emissions for the entire system.

The invention belongs to the technical field of refrigeration, and particularly relates to a gas-liquid separator with an auxiliary heating function, which comprises a separation box, and the top of the separation box is provided with a gas inlet pipe and an exhaust assembly; the exhaust assembly comprises a main air outlet pipe and a connecting sleeve, the main air outlet pipe is connected with the oil return assembly through the connecting sleeve, the oil return assembly comprises an oil return head and a rotating sleeve, and an oil return hole is formed in the oil return head. The oil return holes in the top of the oil return head are sparse and small in hole diameter, and the oil return holes in the bottom of the oil return head are dense and large in hole diameter. Therefore, an oil layer at the layered liquid-state bottom can enter the oil return head more easily through the oil return hole at the bottom of the oil return head, and meanwhile, the small-aperture oil return hole at the top of the oil return head can slow down the liquid-state refrigerant at the layered liquid-state top from entering the oil return head. Liquid refrigerants can be prevented from entering the compressor through the oil return head and the main air outlet pipe.

A cryogenic cooling system is provided comprising a cryogenic refrigerator assembly and two or more connected modules. The cryogenic refrigerator assembly comprises one or more cryogenic refrigerators. Each said connected module comprises: a housing defining an internal volume for the module, the housing having a plurality of side faces, and a plurality of stages arranged within the internal volume for the module, wherein one or more of the plurality of stages is thermally coupled to the cryogenic refrigerator assembly. The two or more said modules are mutually connected at respective side faces, and a first said stage of a first said module is thermally coupled to a first said stage of a second said module.

The filtering structure of the gas-liquid separator comprises a filtering shell and a shell cover installed at an opening in the top of the filtering shell, a connecting piece is fixedly installed between the shell cover and the outer wall of the filtering shell, a filtering cylinder is detachably installed in the filtering shell, and the filtering cylinder is connected with the filtering shell. The filter cartridge is of a cylindrical structure with the top in an opening shape, a cleaning assembly is arranged in the filter cartridge, and an extrusion part is installed at the bottom end in the filter shell, liquid-phase substances enter the filter cartridge to be filtered through the filter cartridge and the cleaning assembly, impurities in the liquid-phase substances are effectively removed, and therefore the liquid-phase substances can be effectively purified. Liquid-phase substances impact on a turbine, so that the turbine is driven to rotate, the turbine drives a rotating shaft to rotate, and the rotating shaft drives a cleaning scraper to rotate on the inner side of the filter cartridge, so that impurities adhered to the inner side of the filter cartridge are scraped, the filtering effect of the filter cartridge is improved, the filter cartridge can be used for a long time, and the practicability is improved.

Non-flammable refrigerants with low GWP and secondary refrigerant systems including such refrigerants are provided. The refrigeration system may contain a high temperature refrigerant circuit with a first refrigerant and a low temperature refrigerant circuit with a second refrigerant, wherein the second refrigerant comprises a blend of R1234ze(Z), R1234ze(E), R1336mzz(E) and optionally R227ea, or a blend of R1234ze(Z) R1234ze(E) R1224yd(Z), and optionally R(227ea). The refrigerant fluids may have one of the following characteristics: (i) a global warming potential (GWP) of less than 150; (ii) an evaporator glide of less than 5.5° C.; (iii) non-flammability according to ASHRAE Standard 34; and / or (iv) a boiling point of less than 6° C.

The present invention discloses a refrigerant filling and discharging device for refrigeration equipment, which relates to the field of refrigerant filling technology, and comprises a device box, wherein the outer surface of one side of the device box is provided with a feed trough, the outer surface of the other side of the device box is provided with a heat dissipation port, the outer surface of the lower end of the device box is provided with a bottom warehouse body, the outer surface of the upper end of the bottom warehouse body is provided with a No. 1 support plate, and the upper outer surface of the No. 1 support plate is provided with a recovery filter barrel, and the recovery filter barrel is located inside the device box. A refrigerant filling and discharging device for refrigeration equipment of the present invention can realize the function of refrigerant recovery and filling of the refrigerator through the provided feed barrel and recovery filter barrel, and has the effect of filling refrigerant and recovering refrigerant, and the recovered refrigerant is sent to the inside of the recovery filter barrel, and the usable refrigerant is re-transported to the feed barrel after filtering and purification, so as to recycle the refrigerant and save resources.

An injection type heat exchange module includes an outer tank composed of an upper chamber and a lower chamber separated from each other, an inner tank disposed inside the upper chamber of the outer tank to be heat-exchangeable with the refrigerant and connected to discharge the refrigerant to the compressor, the evaporator, or the lower chamber of the outer tank, a first valve disposed on an upper end of the inner tank; a second valve rotatably coupled to a lower end of the inner tank, and an actuator simultaneously connected to the first valve and the second valve to be operated to simultaneously rotate the first valve and the second valve, and a heat management system for a vehicle applying the same.

A refrigeration circuit comprising one first compressor (1), a first gas-cooler (7), connected to the first compressor through a common discharge line (41), a medium temperature expansion valve (19), a medium temperature heat exchanger (20), a liquid receiver (17) that is connected to an outlet liquid line (80) that splits in a first liquid line (81) that connects with the medium temperature heat exchanger and a second liquid line (82) that comprises a first expansion valve (28), to a first pressure reduction valve (14) and to a first heat exchanger (18), wherein the refrigerant flowing through the second liquid line is also mixed with the refrigerant from the first liquid line leaving the medium temperature heat exchanger and the mixture enters the first heat exchanger to exchange heat with the refrigerant in the first liquid line to be directed to the first compressor through a suction line (59).

A heat pump system for a vehicle may include: a HVAC module, a heat-exchanger, a first expansion, a first connection line, a chiller, a second expansion valve, a gas injection device, a second connection line, and a third connection line, in order to improve cooling and heating performance by applying a gas injection device that selectively operates in an air conditioning mode of vehicle interior to increase the flow rate of the refrigerant.

An injection-type heat exchange module includes an outer tank connected to an external condenser or an indoor condenser and a lower chamber connected to an evaporator and a compressor, an inner tank disposed so as to exchange heat with a refrigerant in the outer tank and connected to the compressor, the evaporator, or a lower portion of the outer tank, a first valve disposed at an upper end of the inner tank, a second valve rotatably coupled to a lower end of the inner tank, and an actuator connected to the first valve and the second valve to simultaneously rotate the same. The first and second valves are configured to permit flow of, expand, or block the flow of the refrigerant by rotation thereof.

A heat pump system for a vehicle can improve cooling and heating performance by increasing a flow amount of the refrigerant by employing a gas injection device selectively operated in at least one mode selected for air conditioning of a vehicle interior, and the heat pump system can include a compressor, a condenser, a first heat-exchanger, a second heat-exchanger, a first expansion valve, an evaporator, a first refrigerant connection line, a chiller, a second expansion valve, and a gas injection device, where flowing movement of the refrigerant can be controlled according to at least one mode for temperature adjustment of a vehicle interior and / or temperature adjustment of a battery module.