39results about How to "Increase suction superheat" patented technology

The invention discloses an adaptive ultra-high-efficiency gas-liquid separator for a parallel compressor unit, which comprises a casing, a separation chamber is arranged in the casing, an inlet pipe, an air outlet pipe and an oil return pipe, and the separation chamber includes a gravity separation chamber and an oil return pipe. The centrifugal separation chamber arranged around the separation chamber; the outlet end of the inlet pipe communicates with the inlet end of the centrifugal separation chamber; the air outlet pipe is used to output the gas passing through the gravity separation chamber; the housing is also provided with a diversion chamber located below the separation chamber and the collection chamber located below the diversion chamber; the lower ends of the gravity separation chamber and the centrifugal separation chamber communicate with the diversion chamber; a deflector is provided in the diversion chamber to divert the gas separated by the centrifugal separation chamber to the gravity The separation chamber and the liquid are diverted to the collection chamber; one end of the oil return pipe is connected with the collection chamber, and the other end is connected with the air outlet pipe. The invention has the advantages of small size, convenient modular assembly, high separation efficiency, avoiding harmful overheating of suction, ensuring reliable oil return within the full load range, and the like.

The invention discloses a heat recovery multi-connection outdoor unit and a heat recovery multi-connection unit. The outdoor unit has a first interface and a second interface. The outdoor unit includes: a compressor, which has an exhaust port and an air return port; The component has a first valve port to a fourth valve port, the first valve port is connected to the exhaust port, the second valve port is connected to the return air port, and the third valve port is connected to the first port; outdoor heat exchanger, outdoor heat exchange The first end of the heat exchanger is connected to the fourth valve port, and the second end of the outdoor heat exchanger is connected to the second port; a plurality of one-way valves, each one-way valve has a conduction end and a cut-off end, each one-way valve One-way conduction in the direction from the conduction end to the cut-off end, a plurality of one-way valves include the first to sixth one-way valves; a throttling element, the throttling element is connected in series between the third one-way valve and the outdoor heat exchanger ;Gas-liquid separator. The outdoor unit with multiple heat recovery units of the present invention is beneficial for the compressor to obtain the degree of suction superheat, and at the same time can also improve the energy efficiency of the multiple heat recovery units.

The invention provides a heat-pump air conditioning system which comprises an indoor heat exchanger, an outdoor heat exchanger, a compressor, a four-way valve, a heat accumulator and a heat accumulation circuit. The four-way valve is respectively communicated with an air suction end and an exhaust end of the compressor, the indoor heat exchanger and the outdoor heat exchanger and is connected with the air suction end of the compressor by a first pipeline; the heat accumulator wraps the outer wall of the compressor; the heat accumulator is serially connected onto the heat accumulation circuit, and the heat accumulation circuit is connected with the first pipeline in parallel. The heat-pump air conditioning system has the advantages that heat in the outdoor heat exchanger can be sufficiently utilized, and an air suction superheat degree and an enthalpy value of refrigerants at the air suction end of the compressor can be greatly increased, so that the temperature of refrigerants at the exhaust end of the compressor can be greatly increased, and the defrosting efficiency of the heat-pump air conditioning system can be improved. The invention further provides a defrosting method for the heat-pump air conditioning system.

A micro-channel regenerator used in air-conditioning and refrigeration systems, including end plates arranged in the shell, cover plates covering the end plates, and multiple baffles vertically arranged between the end plates to divide the regenerator into several shell sides plate, a plurality of flat tubes arranged in the middle of the shell side, and an upper chamber with an air inlet on the upper part of the same side of the regenerator shell, and a lower chamber with an air outlet on the lower part; multiple baffles Adjacent baffles in the plate are communicated with the upper chamber or the lower chamber at intervals, and the part of the baffle not connected with the lower chamber is located in the lower chamber and has an oil discharge hole for discharging lubricating oil; the regenerator The structure is compact, it can enhance the heat exchange efficiency, increase the effective area of ​​heat exchange, increase the superheat degree of the compressor suction, reduce the amount of refrigerant charge, and has the function of liquid storage.

The present invention provides an air-injection enthalpy-increasing heat pump air conditioning system, a control method, a control device and an air conditioner, wherein the air-injecting enthalpy-increasing heat pump air-conditioning system includes: a compressor, including an exhaust port, an injection port and an air return port; a reversing assembly , including the first valve port to the fourth valve port; the outdoor heat exchanger; the first heat exchanger and the first solenoid valve, the first heat exchanger includes the first heat exchange flow path and the second heat exchange flow path; the second A heat exchanger and a second electromagnetic valve, the second heat exchanger includes a third heat exchange flow path and a fourth heat exchange flow path, the first end of the third heat exchange flow path is connected to the second end of the second heat exchange flow path end, the second end of the third heat exchange flow path is connected to the second end of the first electromagnetic valve, the first end of the fourth heat exchange flow path and the third valve port of the reversing assembly are connected to the second end of the second electromagnetic valve The first end, the second end of the second electromagnetic valve is connected to the first end of the first heat exchange flow path; and the gas-liquid separator. Through the technical scheme of the invention, the compressor can be prevented from running wet when the air conditioner is defrosting.

A regenerator with gas-liquid separation function and a refrigeration and air-conditioning system using the regenerator, the regenerator includes a shell, an inner tube and a baffle arranged in the shell; the inner tube penetrates through the bottom wall of the shell, and The bending distribution in the housing passes through the bottom wall of the housing; the baffle is fixed in the housing and distributed between the bent inner tubes; the connection between the two ends of the inner tube and the bottom of the housing is respectively opened with a liquid inlet and a liquid Outlet, when in use, the liquid inlet is connected to the condenser, and the liquid outlet is connected to the throttle valve; there is an oil return hole at the junction of the baffle and the bottom wall of the shell, and an air inlet and an air outlet are opened on the side of the shell. When the air inlet is connected to the evaporator, the air outlet is connected to the compressor; the baffle divides the interior of the shell into multiple shells; the invention also discloses a refrigeration and air-conditioning system using the regenerator; the regenerator can both It meets the heat recovery needs of the refrigeration and air-conditioning system, and can also play the role of gas-liquid separation, liquid storage, and timely return of lubricating oil in the liquid receiver; in the refrigeration and air-conditioning system of the present invention, a regenerator is added, and the storage liquid container.

A gas liquid separator (1), comprising: sealed spaces separately formed by a housing (11) and an inner container (12), the inner container (12) being inside of the housing (11); the space between the housing (11) and the inner container (12) forms a supercooling passage, and the space inside of the inner container (12) forms a superheating passage; the superheating passage has a gas inlet pipe (13) for introducing in refrigerant steam and has a gas outlet pipe (14) for discharging the refrigerant steam out of the gas liquid separator (1); the supercooling passage has a liquid inlet pipe (15) for introducing in refrigerant liquid and has a liquid outlet pipe (16) for discharging the refrigerant liquid out of the gas liquid separator (1); the refrigerant liquid inside of the supercooling passage and the refrigerant steam inside of the superheating passage undergo heat exchange.

Provided is a heat radiation and circulation system of an air conditioner, which adopts a flat-pipe micro-passage aluminium radiator (6) and comprises a compressor (1). An exhaust pipe of the compressor (1) is connected to a four-way directional control valve (2), the four-way directional control valve (2) is connected to an outdoor heat exchanger (4), the outdoor heat exchanger (4) is connected to an indoor heat exchanger (10) via an electronic expansion valve (11), the indoor heat exchanger (10) is connected to a shut-off valve (3), the shut-off valve (3) is connected to an air suction pipe of the compressor (1) via the four-way directional control valve (2), the air suction pipe of the compressor (1) is connected to the compressor (1) via a gas-liquid separator (9), a refrigeration cycle branch is arranged on the air suction pipe, the refrigeration cycle branch comprises a branch electromagnetic valve (5), the branch electromagnetic valve (5) is connected to the flat-pipe micro-passage aluminium radiator (6), and a temperature sensor (8) is arranged on the flat-pipe micro-passage aluminium radiator (6); an air suction electromagnetic valve (7) is also arranged on the air suction pipe; and the air suction electromagnetic valve (7) is connected in parallel to the branch electromagnetic valve (5). The present invention can improve the heat radiation efficiency, recover the heat emitted from an air-conditioning module, and ensure the operating stability of an air-conditioning unit.