3210results about "Refrigeration components" patented technology

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 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 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.

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.

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 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.

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.

The utility model relates to the technical field of refrigerants, and discloses an automatic refrigerant filling device which comprises a conveying pipe, the right end of the conveying pipe penetrates through and is fixedly connected with a flow meter, the right end of the flow meter penetrates through and is fixedly connected with a first electromagnetic valve, and the right end of the first electromagnetic valve penetrates through and is fixedly connected with an output pipe. The right end of the output pipe penetrates through and is fixedly connected with a storage tank, the top of the outer ring of the conveying pipe penetrates through and is fixedly connected with a second electromagnetic valve, the top of the second electromagnetic valve penetrates through and is fixedly connected with a connecting pipe, the left end of the connecting pipe penetrates through and is fixedly connected with a connector, and the left end of the connector is fixedly connected with an extension pipe. According to the device, through the extension pipe, the threaded ring, the fixing ring, the connector, the suction cup and the extrusion cover, the extension pipe is inserted into a filling port of equipment needing to be filled, then the threaded ring is rotated for threaded connection, then the suction cup slides, the suction cup is moved to the outer side of the fixing ring, and the suction cup and the port are used for sucking.

A ventilation system including a ventilator; and an outdoor unit, wherein the ventilator includes a housing including a first intake, a second intake, a first outlet and a second outlet, a plurality of dampers to change flow paths of air flowing through the housing, first and second air blowers, a heat exchanger in the housing, and a processor to control the dampers and first and second air blowers to form a first flow path in which outside air flows through the heat exchanger, or form a second flow path in which room air flows through the heat exchanger, to thereby form a flow path in the ventilator, while air flows through the flow path, control the outdoor unit to form frost on the heat exchanger, and control the outdoor unit to stop operating based on a preset frosting termination condition so that the frost melts to clean the heat exchanger.

A heat pump system for a vehicle may effectively adjust a temperature of a heating element by using a cooler in which refrigerant and coolant are heat exchanged. Meanwhile, by using a rear heating, ventilation and air conditioning (HVAC) module equipped with a heat exchanger, the heat pump system can effectively perform cooling and heating of the rear seat.

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.

The utility model 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 and a filtering device, the valve body comprises a main valve pipe and a first pipe joint, a second pipe joint and a third pipe joint which are connected to the main valve pipe, the first pipe joint is used for communicating with an exhaust port of the compressor, the second pipe joint is used for communicating with an air return port of the compressor, and the third pipe joint is used for communicating with the heat exchanger; the filtering device is installed on the third pipe connector and used for filtering the refrigerant flowing through the third pipe connector. The filtering device is directly installed on the third pipe connector, so that the filtering device can filter a refrigerant flowing through the third pipe connector, a middle pipeline between the filtering device and the third pipe connector is omitted, and therefore the machine body structure of the outdoor unit of the heating and ventilation equipment can be simplified to a certain degree, and the overall size of the machine body is reduced; and a certain production and manufacturing cost can be reduced.

The present application relates to the technical field of refrigerators and discloses an inner liner assembly, comprising: an inner liner having a refrigerator compartment internally configured; a windshield disposed within the inner liner and enclosing a dehumidification interlayer with a first sidewall of the inner liner, the dehumidification interlayer being in communication with the refrigerator compartment; a thermal insulation layer covering the outer surface of the inner liner and avoiding the first sidewall; a cold source portion at least partially attached to the outer surface of the thermal insulation layer and at least partially attached to the outer surface of the first sidewall, such that the cold source portion provides cooling to the first sidewall; and a semiconductor dehumidification module disposed within the dehumidification interlayer and comprising a cold-end heat sink and a hot-end heat sink. The cold-end heat sink is configured to dehumidify gas flowing from the refrigerator compartment into the dehumidification interlayer; the hot-end heat sink is disposed proximate the first sidewall to dissipate heat from the first sidewall. The inner liner assembly utilizes the first sidewall, which is at a lower temperature, to dissipate heat from the hot-end heat sink, thereby improving the heat dissipation effect of the hot-end heat sink and the dehumidification efficiency of the semiconductor dehumidification module. The present application also discloses a refrigerator.

A heat pump system for a vehicle includes a condenser, a heat-exchanger, an expansion valve, an evaporator, and a gas injection device and is capable of improving the cooling and heating performance. The gas injection device includes a gas-liquid separator, a first valve module, and a second valve module and is configured to selectively operate in a selected air conditioning mode of a vehicle interior.

The invention relates to the technical field of refrigeration cycle, and discloses a dry filter of an air conditioner refrigeration cycle system, which comprises a shell, a liquid inlet at the front end of the shell and a liquid outlet at the tail end of the shell, and a front filter plate and a rear filter plate are respectively mounted in the hollow annular table in a sliding manner. The space of the front drying cavity is increased, so that when small particles generated by pulverization of a drying agent are led to the rear drying cavity, the drying agent in the rear drying cavity is kept in a compact state at the moment, and it is ensured that the rear drying cavity has the capacity of adsorbing moisture in a refrigerant; when the space of the rear drying cavity is increased, small particles generated by pulverization of the drying agent are discharged out of the drying cavity, at the moment, the drying agent in the front drying cavity is kept in a compact state, and it is ensured that the front drying cavity has the capacity of adsorbing moisture in the refrigerant. Therefore, small particles generated by pulverization of the drying agent can be effectively cleaned, and moisture in the refrigerant can be reliably removed.

A heat pump assembly with a chiller for battery-powered vehicles, having a refrigerant circuit with a compressor, a heating condenser, a refrigerant valve with an expansion function, an ambient heat exchanger, at least one evaporator with an associated refrigerant valve with an expansion function, as well as a 3 / 2-way refrigerant valve with an expansion function disposed in parallel to the evaporator with a refrigerant path via a chiller bypass and a refrigerant path via a chiller.

A refrigerator according to one embodiment comprises: a storage chamber; a cold air duct disposed at the rear of the storage chamber; a fan provided in the cold air duct; a sterilizing lamp for sterilizing the air supplied to the storage chamber through the cold air duct; a contamination sensor for detecting the contamination level inside the storage chamber; a first temperature sensor for detecting a first temperature of the sterilization lamp; a second temperature sensor for detecting a second temperature of the storage chamber; and a control unit for controlling the fan and the sterilization lamp. The control unit can: determine a sterilization intensity on the basis of the contamination level detected by the contamination sensor; determine, on the basis of the determined sterilization intensity, the rotational speed of the fan and an input voltage of the sterilization lamp corresponding to the rotational speed of the fan; and adjust the input voltage of the sterilization lamp on the basis of the first temperature of the sterilization lamp or the second temperature of the storage chamber.

A liquid separation device for a compressor system has at least one coarse separation unit, which has at least one coarse separator and a liquid removal device; at least one fine separation unit, which has at least one fine separator and a liquid removal device; and at least one liquid removal channel which leads off a liquid from the respective liquid removal devices, wherein the at least one liquid removal channel is formed in the liquid separation device.

A vehicle thermal management system includes a refrigerant system configured to cause, while refrigerant circulates along a refrigerant line, the refrigerant to sequentially pass through an external condenser and a first expansion valve, a component thermal management system including a battery or a power electric (PE) component connected by a coolant line and configured to perform, using the refrigerant distributed from the refrigerant system and coolant circulating along the coolant line, thermal management on the battery or the power electric (PE) component, and a heat-exchanger including a heat-exchange portion connected to the coolant line and provided to allow the coolant circulating through the component thermal management system to pass through the heat-exchange portion, wherein the heat-exchanger is provided on the refrigerant line between the external condenser and the first expansion valve and performs heat-exchange between the coolant passing through the heat-exchange portion and the refrigerant injected from the refrigerant line.

A heat pump system for a vehicle may effectively adjust the temperature of a heating element by using a cooler in which refrigerant and coolant are heat exchanged. Meanwhile, by using a rear heating, ventilation and air conditioning (HVAC) module equipped with one heat exchanger, the heat pump system can effectively perform cooling and heating of the rear seat.

Outdoor unit (10) for a heat pump (1) comprising a refrigerant circuit, the outdoor unit comprising a compressor (13), a discharge pipe (17) of the refrigerant circuit connected to a discharge side of the compressor (13), a bottom plate (31), the bottom plate (31) having a base (36) and an outer flange (37) protruding upward from an outer edge of the base (36), a heat source heat exchanger (11) supported on the bottom plate (31), a liquid refrigerant pipe (19; 20) of the refrigerant circuit connected to the heat source heat exchanger (11), and a defrosting bypass pipe (50) connected at one end to the discharge pipe (17) and at the opposite end to the liquid refrigerant pipe (19; 20), the defrosting bypass pipe (50) being arranged between an inner side (37a) of the flange (37) and an outer side (11a) of the heat source heat exchanger (11) .

The utility model relates to an oil-fluorine separator of a marine water chilling unit. A condenser is connected with a coil exhaust heating interface of the oil-fluorine separator through a high-pressure gaseous refrigerant pipeline, and is connected with an exhaust interface of the oil-fluorine separator through the high-pressure gaseous refrigerant pipeline and a high-pressure exhaust electromagnetic valve; an air suction interface of the oil-fluorine separator is connected with the evaporator through a low-pressure air suction electromagnetic valve and a low-pressure gaseous refrigerant pipeline; a low-pressure gas outlet connector of the oil-fluorine separator is connected with the evaporator through a low-pressure gaseous refrigerant pipeline; the evaporator is connected with a liquid inlet interface of the oil-fluorine separator through an oil-fluorine mixture pipeline and a low-pressure liquid inlet electromagnetic valve; an oil outlet connector of the oil-fluorine separator is connected with an oil tank through a lubricating oil pipeline via a one-way valve; the electrical control box is connected with the high-pressure exhaust electromagnetic valve, the low-pressure air suction electromagnetic valve and the low-pressure liquid inlet electromagnetic valve through signal lines. The oil-fluorine separation device can be used for separating the oil-fluorine mixture on the liquid surface of the flooded evaporator, and the heat exchange effect of the flooded evaporator is improved.

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

The utility model relates to a condensation tank and a refrigerant purification system. The condensation tank comprises a condensation tank gas collection port, a condensation pipe, a refrigerant backflow port and a condensation tank exhaust port. A gas collecting port of the condensing tank is connected with a gas taking port of the condenser, a first pipe orifice of the condensing pipe is connected with a liquid taking port of the condenser, the liquid taking port is formed in a liquid refrigerant layer of the condenser, a second pipe orifice and a refrigerant backflow port of the condensing pipe are respectively connected with the liquid refrigerant recovery unit, and an exhaust port of the condensing tank is connected with the non-condensable gas exhaust unit. By adopting the condenser pipe, mixed gas in the condenser can be efficiently separated at low cost, and a refrigerant in a gaseous refrigerant layer of the condenser can be purified.