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

The invention aims at providing an air conditioner which is mainly used for solving the problems of poor heat dissipation effect of an electrical appliance box and long defrosting time of an existing air conditioner. The air conditioner is added with a second heat exchanger system on the basis of an original heat exchange system, and further provided with a coolant branch to directly lead a first coolant flowing through a pipeline between an outdoor heat exchanger and an indoor heat exchanger in an air suction port of a first compressor; heat emitted by heating components in the air conditioner is absorbed through the second heat exchanger system and the absorbed heat is transferred to the first coolant in the coolant branch; in such a manner, a suction vapor superheat degree and a mass flow of the first compressor are improved while the heat dissipation problem is well solved, and further, the reliability of the air conditioner is improved and defrosting is accelerated; as a result, the comfort of use for users is improved. Meanwhile, the invention provides a control method of the air conditioner.

The invention discloses an electric car air conditioner system which comprises a compressor, a car interior main heat exchanger, a throttling device and a car exterior heat exchanger, and further comprises a flash vessel and a regenerator, wherein the compressor, the car interior main heat exchanger, the throttling device and the car exterior heat exchanger are sequentially connected; the flash vessel is arranged on a connection pipeline between the car exterior heat exchanger and the car interior main heat exchanger and selectively communicates with a compressor air supply opening through an air supply pipeline; and the regenerator is arranged between the compressor and the car interior main heat exchanger and used for conducting heat exchange on coolants entering an air suction opening of the compressor and coolants at an outlet of the car interior main heat exchanger. Enhanced vapor injection is conducted on the compressor through the flash vessel, the regenerator is arranged between the air suction opening of the compressor and the car interior main heat exchanger, the degree of supercooling at an outlet of a condenser and the degree of air suction superheating of the compressor can be effectively improved under the working condition of low temperature heating, and accordingly the heating capacity of the system is improved, liquid impact of the compressor is prevented, and the system reliability is improved. In addition, the invention provides an electric car with the electric car air conditioner system. The driving mileage can be effectively prolonged.

In one aspect, an evaporator assembly for a refrigeration system is provided. The evaporator assembly includes a pressure vessel having an inlet and an outlet. The outlet is configured to supply refrigerant to a compressor of the refrigeration system. A liquid suction heat exchanger is disposed within the pressure vessel. The liquid suction heat exchanger is configured to receive a liquid refrigerant for heat exchange with the refrigerant in the pressure vessel.

The invention discloses an air conditioning system and a control method for the air conditioning system, and belongs to the field of air conditioners. The air conditioning system comprises an indoor heat exchanger, an outdoor heat exchanger, a compressor, a controller and a bypass control pipe, and the bypass control pipe comprises a first solenoid valve, a second solenoid valve, a first pipe, a second pipe and a third pipe; the first end of the first pipe is communicated with the second end of the second pipe through the first solenoid valve, and the second end of the first pipe is communicated with the outdoor heat exchanger and an air suction opening of the compressor; the first end of the second pipe is communicated with an exhaust opening of the compressor; the second end of the second pipe is communicated with the third pipe through the second solenoid valve; and the controller is used for controlling the first solenoid valve and the second solenoid valve according to the air suction superheat degree and the running mode of the air conditioning system. The problems that in the prior art, when the air conditioner heat exchange performance is low, the air suction superheat degree of the compressor is low is solved.

The invention provides a heat pump system and a control method thereof. The heat pump system comprises a compressor (1), a first heat exchanger (3), a first gas supplementing pipeline and a first heatregenerator (6); the first end of the first gas supplementing pipeline is connected to a gas supplementing port of the compressor (1); a pipeline between the first heat exchanger (3) and the compressor (1) is a first heat exchanging pipeline; and heat exchanging is performed between the first heat exchanging pipeline and the first gas supplementing pipeline through the first heat regenerator (6).The heat pump system can effectively raise the gas sucking temperature of the compressor, it is avoided that liquid is taken during gas sucking of the compressor, the gas sucking superheat degree isimproved, and the unit heating capacity is increased.

The invention provides a secondary throttling double-condensation refrigerating system, an air conditioner and a control method. The refrigerating system comprises a compressor, an evaporator, a first-stage condenser, a second-stage condenser, a first throttling device and a second throttling device, wherein the first-stage condenser is connected with an outlet of the compressor; an outlet of thefirst-stage condenser is connected with an inlet of the second-stage condenser; the first throttling device is further arranged on a pipeline between the first-stage condenser and the second-stage condenser; an outlet of the second-stage condenser is connected with the second throttling device; and the other end of the second throttling device is connected with the evaporator. According to the secondary throttling double-condensation refrigerating system, compared with a primary throttling refrigerating circulation system, under the condition of the same evaporation pressure, superheat degree,supercooling degree and refrigerant circulation amount, the second-stage condenser is fully utilized for releasing latent heat and sensible heat of a refrigerant after primary throttling, and the heating capacity, refrigerating capacity, heating performance coefficient and refrigerating performance coefficient of the system are greatly increased.

The invention relates to the technical field of air conditioners, and discloses an electric vehicle heat pump air conditioning system and an electric vehicle. The heat pump air conditioning system comprises an air supplementing branch, an air supply expansion valve and an intermediate heat exchanger; a compression unit comprises an air supplementing compressor, the first end of the air supplementing branch is connected to an air supplementing opening of the air supplementing compressor, and the second end of the air supplementing branch is connected to a pipeline between an in-vehicle heat exchange unit and a main path expansion valve; a low-temperature side of the intermediate heat exchanger and the air supply expansion valve are connected to the air supplementing branch in series, and ahigh-temperature side of the intermediate heat exchanger is connected to a pipeline between the in-vehicle heat exchange unit and the main expansion valve in series. And the air supplementing branch also flows through at least one of a motor, a battery and an electric controller of the vehicle. According to the heat pump air conditioning system of the electric vehicle and the electric vehicle provided by the invention, recovery of at least one part of heat of the vehicle motor, the battery and the electric controller is realized through the air supplementing branch, and extra heat absorption income is obtained; therefore, the heating capacity is effectively increased, and the heating efficiency is improved.

The invention provides a three-throttling enthalpy-increasing double-condensing refrigeration system and an air conditioner and a control method. The refrigeration system comprises a compressor, an evaporator, a first-stage condenser, a second-stage condenser, a first throttling device and a second throttling device, wherein the first-stage condenser is connected with an outlet of the compressor,and an outlet of the first-stage condenser is connected with an inlet of the second-stage condenser; a flash evaporator is further arranged between the second throttling device and the evaporator, aninlet pipeline of the flash evaporator communicates with the second-stage condenser, a liquid outlet pipeline of the flash evaporator communicates with the evaporator, a gas outlet pipeline of the flash evaporator communicates with a fill port of the compressor, and a sixth throttling device is further arranged on the liquid outlet pipeline. Compared with a one-throttling and two-throttling refrigeration cycle system, the three-throttling enthalpy-increasing double-condensing refrigeration system has the advantages that the heating capacity, the refrigerating capacity, the coefficient of heating performance and the coefficient of refrigerating performance of the system are greatly increased.

The invention provides a compressor and an air conditioning system. The compressor comprises a motor component, a pump body component, a liquid distribution device component, a refrigerant pipe and acontrol valve; the pump body component comprises a crankshaft, an upper flange, a lower flange, a lower cover plate and a cylinder component; one side, away from the cylinder component, of the lower flange is provided with a cavity; the side wall of the lower flange is provided with a first air suction hole and a second air suction hole which communicate with the cavity; the liquid distribution device component is arranged at the external of a shell component; an outlet pipeline of the liquid distribution device component is connected with the first air suction hole; the first end of the refrigerant pipe is connected with an inlet pipeline or an outlet pipeline of the liquid distribution device component; the second end of the refrigerant pipe extends downward from an upper direction of the motor component and is connected with the second air suction hole; and the control valve is arranged on the refrigerant pipe to control the opening degree of the refrigerant pipe according to the degree of superheat of exhausted air of the compressor. By adopting the compressor provided by the invention, the risk of liquid hammer of the compressor can be lowered, so that separation of a slidingsheet of the compressor from a roller is prevented, vibration noise of the compressor is lowered, and the performance and the reliability of the compressor are improved.

The invention provides an air conditioning system and a compressor oil temperature adjusting device used by the air conditioning system. A compressor is provided with a shell and comprises a heat exchange device, wherein the heat exchange device is attached to the shell, and a heat exchange inlet and a heat exchange outlet are formed in the heat exchange device. According to the air conditioning system and the compressor oil temperature adjusting device used by the air conditioning system, the heat exchange device is adopted, an adaptive heat exchange medium is introduced into the heat exchange device according to the exhaust temperature of the compressor, the temperature of the heat exchange medium is utilized to raise or lower the temperature of a mixture of the compressor, so that the purpose of effectively adjusting the temperature of the mixture is achieved, and refrigerant is introduced into the heat exchange device; and when the mixture is cooled, the liquid refrigerant can be vaporized by utilizing the temperature of the mixture, so that the suction superheat degree of the compressor is increased, and the problem of liquid impact of the compressor can be solved on the premise of not increasing the volume of a gas-liquid separator.

The invention discloses an air conditioner and a control method of the air conditioner. The air conditioner comprises a compressor, a reversing assembly, an indoor heat exchanger, an outdoor heat exchanger, a refrigerant mixer, a control valve, a first temperature detecting device, a second temperature detecting device and a controller, wherein the compressor is provided with a gas return hole anda gas exhaust hole, a throttle element is in series connection between the second end of the outdoor heat exchanger and the second end of the indoor heat exchanger; the refrigerant mixer is providedwith a mixing cavity; the mixing cavity is provided with a first inlet, a second inlet and an outlet; the first inlet is connected to a gas return interface, and the outlet is connected to a gas return hole; the control valve is in series connection between the gas exhaust hole and the second inlet; and the controller is electrically connected to the first temperature detecting device, the secondtemperature detecting device and the control valve separately to control opening and closing of the control valve according to detected results of the first temperature detecting device and the secondtemperature detecting device. The air conditioner disclosed by the invention can improve returned gas superheat degree of the compressor, facilities realizing efficient reliable operation of the airconditioner, and is low in cost.