31results about How to "Reduce suction superheat" patented technology

The invention provides an air intake structure, an exhaust structure, a compressor, a control method and an air conditioner. The air intake structure comprises a first air cylinder, a second air cylinder, an air suction pipeline and a first on-off device, wherein the first air cylinder is provided with a first air intake channel, and the second air cylinder provided with a second air intake channel; the first air intake channel and the second air intake channel communicate with the air suction pipeline; and the first on-off device controls on and off of the second air intake channel. The exhaust structure comprises a first air cylinder, a second air cylinder and a second on-off device, a second air supplementing channel is formed in the second cylinder in the exhaust structure, one end ofthe second air supplementing channel communicates with a compression cavity of the second cylinder, and the other end of the second air supplementing channel communicates with the exhaust side of thefirst cylinder; and the second on-off device controls the on and off of the second air supplementing channel. According to the single liquid separation air suction design, in the single-cylinder working mode, frozen oil does not flow back to a liquid separator component through the air suction pipeline, so that the air suction superheat degree is reduced, and the refrigerating capacity of the compressor is improved.

A gas-liquid separator-assisted air conditioner system and its control method, the air conditioner system includes an indoor heat exchanger, an outdoor heat exchanger, a compressor, a four-way reversing valve, two DC frequency conversion fans, two gas-liquid Separator, two one-way valves, three electronic expansion valves, four temperature sensors and control modules; the two heat exchangers of the air conditioner system adopt gas-liquid separation technology, and the Part of the gas-phase refrigerant, and the electronic expansion valve is used to adjust the flow of gas-phase refrigerant, which can effectively reduce the flow resistance loss on the refrigerant side, improve the heat transfer efficiency of the heat exchanger, thereby improving the energy efficiency of the whole machine, and the separation of gas and liquid under condensing conditions When the air conditioner is in the cooling mode, the indoor heat exchanger is used as an evaporator, and the dryness of the refrigerant in the middle of the heat exchanger is already relatively high. At this time, the existence of the gas phase refrigerant will affect the liquid phase refrigerant. evaporation, and increase the flow resistance loss on the refrigerant side; in the heating mode, the outdoor heat exchanger of the air conditioner also has the same problem; the present invention can effectively solve this problem.

The invention provides a cooling circulation system of a rotor compressor pump body which comprises a pump body, an exhausting pipe, a liquid inlet pipe and a condenser, wherein an airtight cavity is arranged on the pump body, the upper end of the airtight cavity is connected with the condenser through the exhausting pipe, and the lower end of the airtight cavity is connected with the condenser through the liquid inlet pipe. Compared with the prior art, the cooling circulation system can cool the pump body in a casing, transmits the heat generated in the air compressing process to the external environment of the compressor, accordingly reduces the temperature of exhausted air and air suction degree of superheat and improves efficiency of the compressor.

The invention provides an air intake structure, an exhaust structure, a compressor, a control method and an air conditioner. The air intake structure includes: a first air cylinder is provided with a first air intake channel, and a second air cylinder is provided with a second air intake channel; An air intake channel and a second air intake channel communicate with the suction pipeline; the first on-off device controls the on-off of the second air intake channel. In the exhaust structure, a second air supply channel is provided on the second cylinder, one end of the second air supply channel communicates with the compression chamber of the second cylinder, and the other end of the second air supply channel communicates with the exhaust side of the first cylinder; Two on-off devices, the second on-off device controls the on-off of the second air supply channel. Single liquid suction design, in the single cylinder working mode, the refrigerated oil will not flow back to the liquid separator parts through the suction pipeline, thereby reducing the suction superheat and increasing the cooling capacity of the compressor.

The invention provides a linear compressor and a refrigeration device with the linear compressor. The linear compressor comprises a first cylinder and a second cylinder which are arranged on the two sides inside a shell, and a first piston and a second piston corresponding to the first cylinder and the second cylinder, wherein the first piston and the second piston are fixedly connected through connecting pieces; the first piston, the second piston and the connecting pieces have hollow parts which communicate with one another inside; a linear motor enables the first piston and the second piston to perform reciprocating motion; compressed air is generated in a compression chamber; an elastic part provides elastic restoring force for the first piston and the second piston; and to-be-compressed air entering from air inlets formed in the connecting pieces is alternately compressed and discharged. According to the linear compressor, to-be-compressed air enters the compression chamber from the connecting pieces between the two pistons of the linear compressor, so that suction overheating can be reduced, and the volumetric efficiency of the compressor is improved; and the stroke is small, the service life of the two pistons is long, and the reliability is improved. The invention further provides the refrigeration device with the linear compressor.

The invention discloses a compressor which comprises a compressor shell, a pump body assembly, and a liquid storage device, wherein the pump body assembly is arranged in the compressor shell, the pump body assembly comprises a compression chamber and a pump body suction hole connected with the compression chamber; the liquid storage device comprises a liquid storage device shell and a discharge pipe, the discharge pipe extends into the pump body suction hole in a seal matched mode and is connected with the compression chamber, the discharge pipe comprises a discharge pipe external section positioned outside the liquid storage device shell, at least one part of the discharge pipe external section is made of the material, and the heat conductivity coefficient of the material is less than 10W / (m*k). According to the compressor, the heat-conducting property of the discharge pipe external section is reduced, heat transfer to the gas in the discharge pipe from the external environment and / or the inner wall of the pump body suction hole can be effectively isolated, the suction overheating can be effectively reduced, and the suction efficiency and energy efficiency of the compressor are improved; one part of the discharge pipe replaces original pump body suction pipe, so that the structure of the compressor is relatively simple and the cost is relatively low.

The invention provides a heat pump water heater and a method for heating water by using the same. The heat pump water heater comprises a compressor, a condenser, a capillary tube, an evaporator and a water supply part, wherein a refrigerant in the compressor circulates in the compressor, the condenser, the capillary tube and the evaporator through a pipeline; the shell wall of the compressor is at least two layers of lamellar heat exchange walls, at least one seal cavity is formed between layers of the lamellar heat exchange walls, and at least one group of matched inlets and outlets which are communicated with the seal cavity are arranged on the outer wall layer of the seal cavity; a water heat exchange part is arranged in the condenser, and a water inlet pipe mouth and a water outlet pipe mouth are connected to the water heat exchange part; and water of the water supply part respectively enters the lamellar exchange walls of the compressor through the pipeline and is communicated with the water heat exchange part of the condenser, and after heat exchange, hot water is supplied to the user side through an output pipeline.

The invention discloses an auxiliary compressor defrosting system for an air source heat pump and relates to an air source heat pump defrosting system. The invention aims at solving the problems of low indoor heat supply, long defrosting time and potential safety hazard of the compressor as a result of the fact that the compressor in the traditional air source heat pump defrosting system needs tosimultaneously supply heat indoor and supply energy for defrosting. A liquid reservoir is communicated with a subcooler, a pipeline between the liquid reservoir and the subcooler is connected with anexpansion valve in parallel, the subcooler is communicated with the inlet end of an auxiliary compressor, the auxiliary compressor is respectively communicated with a plurality of outdoor machines bya third electromagnetic valve, each outdoor machine is communicated with the liquid reservoir by a fourth electromagnetic valve, the remaining one of two outlet ends of the subcooler is communicated with the inlet end of a second throttling valve, the second throttling valve is connected with a second one-way valve in parallel, the second throttling valve is respectively communicated with a plurality of outdoor units, each outdoor unit is communicated with a four-way reversing valve, and the four-way reversing valve is communicated with a main compressor by a gas-liquid separator. The invention is used for defrosting an air source heat pump.

The invention discloses a compressor and a refrigerating cycle device thereof. The compressor comprises a housing, a compression mechanism and a condensing device, wherein the compression mechanism is arranged in the housing; the compression mechanism comprises a primary bearing, an air cylinder assembly and a secondary bearing; the primary bearing and the secondary bearing are respectively arranged at the axial two ends of the air cylinder assembly; the air cylinder assembly comprises at least one air cylinder which is provided with a compression cavity; an air suction opening and an air exhaust opening which are communicated with the compression cavity are formed in the air cylinder; at least one cooling cavity is formed in the compression mechanism; the cooling cavity is provided with an inlet and an outlet; the height of the bottom surface, at the inlet, of the cooling cavity is greater than the height of the bottom surface, at the outlet, of the cooling cavity; the condensing device is arranged outside the housing; and the two ends of the condensing device are respectively communicated with the inlet and the outlet. According to the compressor disclosed by the invention, the compression mechanism can be cooled by virtue of the cooling cavity and the condensing device, so that the compression efficiency of the compressor can be improved.