64results about "Desuperheaters" patented technology

The installation (21) comprises: a primary refrigerant circuit (22), including: - an outdoor unit (23) comprising at least: a first compressor (34), a first heat exchanger (25) configured to exchange heat between a first refrigerant and the outside air, and at least one first expansion valve (26), - an indoor unit (29) comprising at least one second heat exchanger (30) configured to exchange heat between the first refrigerant and the inside air, a secondary refrigerant circuit (32) independent of the primary circuit (22), intended to be installed inside the dwelling and comprising: - a water heater comprising a tank (33), a condenser (35), a second compressor (34) and at least one second expansion valve (36),the primary circuit (22) comprising at least one third heat exchanger (37) allowing the primary circuit (22) and the secondary circuit (32) to be thermally coupled directly or indirectly. Figure from the abstract: Figure 2,

The invention discloses a heating and cooling system with a hybrid fossil fuel electric multifunctional heat pump for a building. A multi-functional heating and cooling device is presented that includes components for ambient air coupled adsorption heat pump cycle and vapor compression cooling cycle integrated together inside a single housing. The adsorption heat pump portion is configured to provide a very high heating efficiency, while the vapor compression portion is configured to provide a high cooling efficiency. The evaporator coil for the adsorption cycle and the condenser coil for the vapor compression cycle are configured to share a common ambient air fan, thereby saving space and cost. By combining the two heating and cooling systems into a single housing using common components, the required total installation cost and outdoor space are reduced compared to the installation of separate heating and cooling systems.

A refrigeration system, having a main loop operating with a first refrigerant and including a first heat exchanger unit connected between a compressor unit and an expansion unit upstream of an evaporation unit, includes a subcooling loop. The subcooling loop has a second refrigerant circulating therein via a pump unit and connects to the first heat exchanger unit to heat-up the second refrigerant. The subcooling loop runs to an air circulation unit located downstream the first heat exchanger unit to cool down the second refrigerant and warm-up air flowing into the air circulation unit.

An apparatus includes a high side heat exchanger, a flash tank, a load, a compressor, and a heat exchanger. The high side heat exchanger removes heat from a refrigerant. The flash tank stores the refrigerant from the high side heat exchanger and to discharge a flash gas. The load uses the refrigerant from the cool a space proximate the load. The compressor compresses the refrigerant from the load. The heat exchanger transfers heat from the refrigerant from the compressor to the flash gas before the refrigerant from the compressor reaches the high side heat exchanger. The heat exchanger directs the flash gas to the compressor after heat from the refrigerant from the compressor is transferred to the flash gas and directs the refrigerant from the compressor to the high side heat exchanger after heat from the refrigerant from the compressor is transferred to the flash gas.

A freezing apparatus according to the present disclosure operates while switching the gas cooler used, the freezing apparatus comprising: a refrigerant circuit which is composed of a low-stage compression mechanism, a water-cooled intercooler that cools a refrigerant discharged from the low-stage compression mechanism, a high-stage compression mechanism that suctions and compresses the refrigerant that has passed through the water-cooled intercooler, a water-cooled gas cooler and an air-cooled gas cooler that cool the refrigerant discharged from the high-stage compression mechanism, an expansion mechanism, and an evaporator; and an injection circuit which connects a refrigerant pipe on the upstream side of the expansion mechanism and a suction refrigerant pipe of the high-stage compression mechanism via an injection expansion mechanism.

Described herein is a modular de-superheater and water heater system. The system comprises a refrigerant-to-water (RW) heat exchanger comprising a first coil, and a second coil in thermal communication with each other. A first end of the first coil is connected to a first port of a heat pump and a second end of the first coil is connected to an inlet of an indoor fan coil unit. A first end of the second coil is connected to an outlet of a DHW tank and a second end of the second coil is connected to an inlet of the DHW tank. The system further comprises a solenoid valve connected between an outlet of the fan coil unit and a second port of the heat pump, and an electronic expansion valve connected between the second port of the heat pump and the second end of the first coil.

The present invention relates to a combined plant comprising a heat pump circuit having a refrigerant evaporator designed to evaporate a refrigerant, a compressor designed to compress the refrigerant, the compressor fluidly connected to the refrigerant evaporator, a refrigerant condenser designed to condense the refrigerant, the refrigerant condenser fluidly connected to the compressor, a throttling device designed to reduce the temperature and pressure of the refrigerant, the throttling device fluidly connected to the refrigerant condenser and the refrigerant evaporator, and a heat generation plant having a cooling circuit with a refrigerant designed to heat the refrigerant during operation of the heat generation plant, the refrigerant fluidly connected to the refrigerant evaporator such that the refrigerant is heated in the refrigerant evaporator.

The application relates to a full-liquid evaporation type air source heat pump system, belonging to the field of heat supply air conditioning. The two ends of an exhaust pipeline are communicated with the outlet of a compressor and the inlet of a condenser; one end of a condensing pipeline is communicated with the outlet of the condenser and a gas-liquid separator; one end of a suction pipeline is communicated with the inlet of the compressor and the gas-liquid separator; the gas-liquid separator is communicated with multiple branch pipelines through a second condensing pipeline; each branch pipeline is communicated with the inlet of a corresponding evaporator; the outlets of multiple evaporators are communicated with a second suction pipeline through corresponding collecting pipelines; a bypass pipeline is communicated with the exhaust pipeline and one end of multiple branch pipelines; the other end of the branch pipeline is communicated with the inlet of the evaporator; one end of a branch collecting pipeline is communicated with the outlet of the evaporator; the other end of the branch collecting pipeline is communicated with a total collecting pipeline; the total collecting pipeline is communicated with the second suction pipeline; and the second suction pipeline is communicated with the second inlet of the gas-liquid separator. The application solves the problems of small single-machine heating capacity and low dry evaporation heat exchange efficiency of the existing air source heat pump unit.

To provide a refrigerating device capable of switching operation between an operation for supplying hot water and an operation not supplying hot water according to demand of hot water supply, while performing a cooling operation of the refrigerating device.SOLUTION: There is provided a refrigerating device for cooling a refrigerant by performing heat exchange between the refrigerant and water. A connection is made by means of refrigerant piping among a low-stage compression mechanism, an intercooler for cooling the refrigerant discharged from the low-stage compression mechanism, a high-stage compression mechanism for sucking the refrigerant having passed through the intercooler, and a gas cooler for cooling the refrigerant discharged from the high-stage compression mechanism. Further, a connection is made by means of water piping among water supply means, the intercooler, the gas cooler, an external heat radiation device, hot water supply means, and a water-feeding mechanism. A first flow rate adjustment mechanism is provided for adjusting a flow rate of water flowing into the hot water supply means and the external heat radiation device after passing through the gas cooler.SELECTED DRAWING: Figure 1

A heat pump (100) with an evaporator (50) for evaporating a fluid in order to obtain an evaporated fluid is described, the evaporator (50) having an evaporator sump (52); with a condenser (60) for condensing a compressed fluid, the condenser (60) having a condenser sump (64); with a compressor having a first compressor stage (10) and a second compressor stage (20), the compressor being arranged in the flow direction of the evaporated fluid during operation of the heat pump (100) between the evaporator (50) and the condenser (60) and being designed to compress the evaporated fluid in order to obtain the compressed fluid; with a container (45) for collecting an intermediate cooling fluid; and with a heat exchanger (82) having a pipe (56) which is designed such that the intermediate cooling fluid flows through it from the container (45), the pipe (56) being arranged in a flow region (11) between the first compressor stage (10) and the second compressor stage (20) in order to cool vaporous fluid in the flow region (11). Furthermore, methods for operating and producing the heat pump are described.

The invention provides a refrigeration device, an environment forming device and a refrigeration method. A refrigeration device is provided with a main refrigeration circuit in which a first refrigerant is sealed, a supercooling refrigeration circuit in which a second refrigerant is sealed and which is connected to a supercooling heat exchanger, and a controller. The supercooling heat exchanger supercools the first refrigerant in the main refrigeration circuit. In the superheat degree setting control, the controller sets the target value of the superheat degree of the second refrigerant on the outlet side of the supercooling heat exchanger to a first value when the refrigeration demand degree is a first demand value, and sets the target value of the superheat degree to a second value greater than the first value when the refrigeration demand degree is a second demand value smaller than the first demand value. The controller controls the second expansion mechanism on the basis of a target value of the degree of superheat during the control of the degree of superheat. Accordingly, not only energy saving is achieved by using the supercooling heat exchanger, but also energy saving is further achieved.

An electric compressor has a housing (19), an electric motor (11), a refrigerant compression unit (12), an electric control device (26), a refrigerant flow channel (25), and a cooling medium flow channel (20). The electric motor (11) is configured to rotate in response to energization of windings (32) of the electric motor (11). The refrigerant compression unit (12) is configured to be driven by the electric motor (11) such that a refrigerant is sucked in and the refrigerant is discharged after compressing the refrigerant. The electric control device includes an electronic component (27) configured to generate heat in response to energization of the electronic component (27). The electrical control device (26) is configured to control the energization of the windings (32) of the electric motor (11).The coolant flow channel (25), which is formed on the inside of the housing (19), is configured to enable heat exchange between the coolant flowing in the coolant flow channel (25) before being sucked into the coolant compression unit (12) and having a low temperature and low pressure, and the coils (32) and the electronic component (27). The cooling medium flow channel (20), which is formed on the inside of the housing (19), is configured to enable heat exchange between a cooling medium flowing in the cooling medium flow channel (20) and the coils (32) and the electronic component (27).

The invention relates to a combination system (1) comprising: a heat pump circuit having a refrigerant vaporizer (2) for vaporizing a refrigerant; a compressor (11) for compressing a refrigerant, the compressor (11) being fluidically connected to the refrigerant vaporizer (2); a refrigerant condenser (16) for condensing a refrigerant, the refrigerant condenser (16) being fluidically connected to the compressor (11); a throttling device (22) for reducing the temperature and pressure of the refrigerant, the throttling device (22) being connected to the refrigerant condenser (16), the refrigerant vaporizer (2) being fluidically connected to the throttling device (22); and a heat generation system (3) having a cooling circuit with a cooling medium, the heat generation system (3) being designed to enable the cooling medium to be heated during operation; wherein the cooling medium is fluidically connected to the refrigerant vaporizer (2) such that the refrigerant can be heated in the refrigerant vaporizer (2).

A refrigeration line set is provided including a gas line with first and second openings formed through a sidewall thereof. A liquid line includes exterior sections and an interior section extending through the gas line. A connection unit is positioned at each opening in the gas line, and each connection unit includes a line fitting attached to an end of the interior section of the liquid line, and a cap attached to an end of an exterior section of the liquid line and fixed to the sidewall of the gas line around the opening.

This invention belongs to the field of new energy technology and discloses a dehumidifier two-phase assembly and its ultra-high energy efficiency dehumidifier. The dehumidifier two-phase assembly is a horizontal cross-section V-shaped two-phase assembly module consisting of at least two two-phase assembly modules; or a structure consisting of two-phase assembly modules and a horizontal cross-section V-shaped two-phase assembly module, etc.; the long sides of the fins of the two-phase assembly modules are arranged in the vertical direction or nearly vertical direction in the horizontal air duct; the horizontal cross-section of the dehumidifier two-phase assembly perpendicular to the long sides of the fins is a sawtooth-shaped zigzag. The ultra-high energy efficiency dehumidifier includes a shell, the above-mentioned dehumidifier two-phase assembly, a compressor, and an exhaust chamber; the air outlet on the back panel corresponds to the air intake of the vertically arranged fan; the exhaust port of the exhaust chamber is located on the side plate or back plate of the shell. This invention taps into the potential of the low-temperature exhaust "cold" resources of the evaporator, implements deep subcooling of the condensate for efficient dehumidification; and constructs a heavy-duty two-phase assembly to achieve ultra-high energy efficiency dehumidification.

The present disclosure provides an overheating elimination component, a heat exchanger, and a refrigeration system. The overheating elimination component includes: a partition wall that encloses an overheating elimination chamber, and an overheating elimination chamber inlet and an overheating elimination chamber outlet that are communicated with the overheating elimination chamber are provided on the partition wall; a first heat exchange tube, at least a part of the tube section of the first heat exchange tube is located in the overheating elimination chamber to cool the gaseous working medium in the overheating elimination chamber; and a gas equalizing plate that is located in the overheating elimination chamber and is arranged between the overheating elimination chamber inlet and the overheating elimination chamber outlet, at least a part of the tube section of the first heat exchange tube is located between the gas equalizing plate and the overheating elimination chamber outlet, and the gas equalizing plate has a plurality of gas equalizing holes that are divided into two groups of gas equalizing holes with different diameters.

The installation (21) comprises: a primary refrigerant circuit (22), including: - an outdoor unit (23) comprising at least: a first compressor (34), a first heat exchanger (25) configured to exchange heat between a first refrigerant and the outside air, and at least one first expansion valve (26), - an indoor unit (29) comprising at least one second heat exchanger (30) configured to exchange heat between the first refrigerant and the inside air, a secondary refrigerant circuit (32) independent of the primary circuit (22), intended to be installed inside the dwelling and comprising: - a water heater comprising a tank (33), a condenser (35), a second compressor (34) and at least one second expansion valve (36),the primary circuit (22) comprising at least one third heat exchanger (37) allowing the primary circuit (22) and the secondary circuit (32) to be thermally coupled directly or indirectly. Figure from the abstract: Figure 2,

The invention relates to a combination system (1) comprising a heat pump circuit having a refrigerant evaporator (2), which is designed for evaporating a refrigerant, furthermore comprising a compressor (11), which is designed for compressing the refrigerant, wherein the compressor (11) is connected in terms of flow to the refrigerant evaporator (2), furthermore comprising a refrigerant condenser (16), which is designed for condensing the refrigerant, wherein the refrigerant condenser (16) is connected in terms of flow to the compressor (11), furthermore comprising a restrictor device (22), which is designed for reducing the temperature and the pressure of the refrigerant, wherein the restrictor device (22) is connected to the refrigerant condenser (16), wherein the refrigerant evaporator (2) is connected in terms of flow to the restrictor device (22), furthermore comprising a heat generation system (3) having a cooling circuit with a cooling medium, wherein the heat generation system (3) is designed in such a way that, during the operation, the cooling medium can be heated, wherein the cooling medium is connected in terms of flow to the refrigerant evaporator (2) in such a way that the refrigerant can be heated in the refrigerant evaporator (2).

The application discloses a carbon dioxide refrigeration system based on photovoltaic photothermal and soil cross-seasonal cold storage supercooling, which comprises a PV / T system connected with a CO2 refrigeration cycle system, used for providing electric energy for the CO2 refrigeration cycle system and providing hot water for users; the CO2 refrigeration cycle system is used for refrigerating specific space; a heating system is used for heating specific space; a soil cold storage supercooling cycle system is connected with the PV / T system and the CO2 refrigeration cycle system respectively, used for storing cold in soil in winter and releasing cold from soil in summer, and cooling the PV / T system and the CO2 refrigeration cycle system. The application is equipped with the soil cold storage supercooling technology, uses the heat generated by the gas cooler, the environmental energy, the cold of tap water and the natural cold in external environment air to cool the refrigerant and the solar panel, and improves the refrigeration efficiency of the whole CO2 refrigeration system and the power generation efficiency of the PV / T system.

The invention discloses a heating, ventilation, air conditioning and refrigeration (HVACamp; a system (R, R) includes a heat pump system configured to circulate a working fluid therethrough, and a water distillation system coupled to the heat pump system. The water distillation system includes a heat exchanger configured to transfer heat between a flow of the working fluid from the heat pump system and a fluid flow from a water source to produce a liquid fluid portion and a distilled vapor fluid portion. In addition, the water distillation system includes a storage vessel configured to receive and store the liquid fluid portion and the distilled vapor fluid portion from the heat exchanger.

The invention discloses a multi-energy complementary self-driven energy release system, and relates to the technical field of comprehensive utilization of energy. The multi-energy complementary self-driving energy release system comprises an energy storage path, an energy release path, a self-driving unit and a steam supply unit. The energy storage path comprises a compressor unit, a cold box and a liquid air storage tank. The energy release path comprises an evaporator and a low-temperature expansion machine. The self-driving unit comprises a first circulating fan and a first generator. The steam supply unit comprises a reboiler, a rectifying tower, a superheater and a first liquid pump. The compressor unit of the system achieves heat supply, the evaporator achieves cold supply, the first generator achieves power supply, the first circulating fan achieves internal self-driven circulation, the superheater achieves steam supply, and the whole system can continuously provide compressed gas all day long.

A method for switching an operation of a refrigeration system between single and multiple compressor cycles based on ambient temperature is disclosed. The method receiving a detected ambient temperature and determining whether the detected ambient temperature is less than a threshold ambient temperature. The method further comprises communicating a first electronic signal to a switching valve to bypass a second compressor and allow refrigerant to flow from the switching valve toward an outdoor heat exchanger in response to determining that the detected ambient temperature is less than the threshold temperature. The method further comprises communicating a second electronic signal to the switching valve to allow the refrigerant to flow from the switching valve toward the second compressor before flowing toward the outdoor heat exchanger in response to determining that the detected ambient temperature is equal to or more than the threshold temperature.

A heat pump (100) with an evaporator (50) for evaporating a fluid in order to obtain an evaporated fluid is described, the evaporator (50) having an evaporator sump (52); with a compressor having a first compressor stage (10) and a second compressor stage (20), the compressor being arranged in the flow direction of the evaporated fluid during operation of the heat pump (100) between the evaporator (50) and a condenser (60) and being designed to compress the evaporated fluid in order to obtain compressed fluid; and with a condenser (60) for condensing the compressed fluid; and with an intermediate cooler (40) which is connected to an intermediate cooling fluid supply line (3) and which has an operating element (42), the operating element (42) being arranged between the first compressor stage (10) and the second compressor stage (20) and being designed to bring about an interaction between an intermediate cooling fluid, which can be supplied through the intermediate cooling fluid supply line (3), and a heated vaporous fluid, which can be discharged from the first compressor stage (10), and wherein the intermediate cooling fluid supply line (3) extends from the evaporator sump (52) to the operating element (42). Furthermore, methods for operating and producing the heat pump are described.

An electric compressor is provided with a casing (19), an electric motor (11), a refrigerant compression unit (12), an electric control unit (26), a refrigerant flow path (25), and a cooling water flow path (2). The motor (11) is rotationally driven by energizing the winding (32). The refrigerant compression unit (12) sucks in, compresses, and discharges refrigerant by being driven by the electric motor (11). The electrical control unit (26) has an electronic component (27) that generates heat by energization, and controls energization to the winding (32) of the motor (11). A refrigerant flow path (25) provided inside the casing (19) is provided so as to enable heat exchange between the low-temperature and low-pressure refrigerant before being sucked into the refrigerant compression unit (12), the winding (32), and the electronic component (27). A cooling water flow path (20) provided on the inside of the housing (19) is provided so as to enable heat exchange between the cooling water flowing through the cooling water flow path (20), the winding (32), and the electronic component (27).

The invention relates to an ultralow-temperature heat pump unit EEV and EVI electronic expansion valve control method which is characterized in that data are collected, and a main valve EEV control method comprises the steps of main valve EEV initial opening, main valve EEV opening automatic adjustment and main valve EEV electronic expansion valve final opening; the auxiliary valve EVI control method comprises auxiliary valve EVI starting conditions, EVI initial opening PEVI, auxiliary valve EVI opening automatic adjustment and auxiliary valve EVI final opening; the method has the advantages that the opening degrees of the EEV and EVI electronic expansion valves are accurately controlled, so that the enhanced vapor injection refrigerant flow of the compressor is controlled, the efficiency of the compressor is improved, the energy efficiency is improved, the exhaust temperature of a compressor system is reduced, and the service life of the machine is prolonged.

A heat pump (100) with an evaporator (50) for evaporating a fluid in order to obtain an evaporated fluid is described, the evaporator (50) having an evaporator sump (52); with a compressor having a first compressor stage (10) and a second compressor stage (20), the compressor being arranged in the flow direction of the evaporated fluid during operation of the heat pump (100) between the evaporator (50) and a condenser (60) and being designed to compress the evaporated fluid in order to obtain compressed fluid; and with a condenser (60) for condensing the compressed fluid; and with an intermediate cooler (40) which is connected to an intermediate cooling fluid supply line (3) and which has an operating element (42), the operating element (42) being arranged between the first compressor stage (10) and the second compressor stage (20) and being designed to bring about an interaction between an intermediate cooling fluid, which can be supplied through the intermediate cooling fluid supply line (3), and a heated vaporous fluid, which can be discharged from the first compressor stage (10), and wherein the intermediate cooling fluid supply line (3) extends from the evaporator sump (52) to the operating element (42). Furthermore, methods for operating and producing the heat pump are described.

The heated suction line accumulator may include a tank extending longitudinally and having a first internal cavity, and a refrigerant input orifice extending through a sidewall of the tank and configured to receive an input refrigerant. A longitudinally extending intermediate tube may be disposed within the first internal cavity. At least one opening may extend through a sidewall of the intermediate tube to allow the input refrigerant to flow therethrough. At least one heated line may be disposed within the tank and include a first plurality of coils wound around the intermediate tube. The heated line may be configured to receive a heating fluid for heating the input refrigerant. An inner tube may be disposed within the intermediate tube and configured to convey the heated input refrigerant to an exterior of the tank.

The present disclosure relates to a refrigeration circuit (100A, 100B, 100C) comprising: - at least one refrigerant pump (110) which is designed to compress a refrigerant and to circulate the refrigerant in the refrigeration circuit (100A, 100B, 100C), a temperature of the refrigerant after compression being higher than a critical temperature of the refrigerant; - at least one precooler (120) which is arranged downstream of the at least one refrigerant pump (110) in the refrigeration circuit (100A, 100B, 100C) and is designed to precool the refrigerant compressed by the at least one refrigerant pump (110); - at least one main cooler (130) which is arranged downstream of the at least one precooler (120) in the refrigeration circuit (100A, 100B, 100C) and is designed to further cool the refrigerant precooled by the at least one precooler (120); and - at least one main heat exchanger (14A, 140B) which is arranged downstream of the at least one main cooler (130) in the refrigeration circuit (100A, 100B, 100C).

The present disclosure provides an overheating elimination component, a heat exchanger, and a refrigeration system. The overheating elimination component includes: a partition wall that encloses an overheating elimination chamber, and an overheating elimination chamber inlet and an overheating elimination chamber outlet that are communicated with the overheating elimination chamber are provided on the partition wall; and a first heat exchange tube, at least a partial pipe section of the first heat exchange tube is located in the overheating elimination chamber to cool the gaseous working medium entering the overheating elimination chamber.