Mixed power gas heat pump air conditioner and its operating method

Abstract

With more than two power sources being installed, the disclosed new type system includes unit of combining dynamic forces, heat recovery device, fuel gas allocation unit, refrigerating unit and auxiliary device etc. The unit of combining dynamic forces is composed of gas engine, electric motor, generator and accumulation device etc. The refrigerating unit includes compressor, restricting elements, vaporizer and condenser etc. Main features of the system are that gas engine and accumulation device are combined to drive compressor; when load of the compressor is larger than drive provided by the gas engine, then both the gas engine and accumulation device provides power for the compressor; when load of the compressor is smaller than drive provided by the gas engine, then the gas engine stops operation if the accumulation device provides enough power; otherwise, the gas engine provides part of power to drive the compressor, and surplus power in use for charging the accumulation device.

Description

technical field [0001] The invention relates to a novel hybrid gas heat pump air conditioner, which belongs to the technical field of air conditioner manufacturing. Background technique [0002] At present, in the application process of gas-fired heat pump air-conditioning devices, when the load of the heat pump air-conditioning system changes frequently, the fuel engine mainly operates under partial load conditions, and the operating conditions constantly change with the external load, usually deviating from the calibration conditions. The change of the working condition of the fuel engine is mainly realized by controlling the size of the fuel flow. With the change of the fuel flow, the working condition of the engine changes frequently, the engine running stability is poor, and the fuel economy is low. Although gas heat pumps mainly consume fuel (such as natural gas, gasoline, etc.), the fans, pumps, and control circuits in the air-conditioning system need additional elect...

AI Technical Summary

Problems solved by technology

[0002] At present, in the application process of gas-fired heat pump air-conditioning devices, when the load of the heat pump air-conditioning system changes frequently, the fuel engine mainly operates under partial load conditions, and the operating conditions constantly change with the external load, usually deviating from the calibration conditions. The change of the working condition of the fuel engine is mainly realized by controlling the size of the fuel flow. With the change of the fuel flow, the working condition of the engine changes frequently, the engine running stability is poor, and the fuel economy is low.

Although gas heat pumps mainly consume fuel (such as natural gas, gasoline, etc.), the fans, pumps, and control circuits in the air-conditioning system need additional electric energy to drive, making gas heat pumps dependent on power supply places, which limits the use of gas heat pumps. scope of application

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