Low-temperature air conditioner heat pump system and method for decreasing temperature regulation fluctuation by employing the same

Abstract

The invention relates to a low-temperature air-condition heat pump and the method for reducing temperature adjusting vibration which has better warming effect in outdoor low temperature. The invention comprises a liquid storage device, a gas-liquid separator, an auxiliary cooling coil, a cross valve, an outdoor heat exchanger, an outdoor electric expansion valve and a compressor air-feeding system. The invention uses an ejection digital whorl compressor and a compressor air-feeding system, while the outdoor temperature is lower than 0Deg. C, the compressor air-feeding system will work, the EV electromagnetic valve is switched on to feed saturate refrigeration agent in middle pressure to the compressor to realize two-step compression inside the compressor and improve the heating amount and energy-efficiency rate.

Description

【Technical field】 [0001] The invention relates to the field of air source heat pump air conditioners, in particular to a low temperature air conditioner heat pump system with good heating effect under outdoor low temperature conditions and a method for reducing temperature adjustment fluctuations. 【Background technique】 [0002] At present, the ordinary air source heat pump air conditioners sold in the market have serious attenuation of heating capacity under the low temperature outdoor conditions, and even cannot start and run normally. In the cold regions of northern my country, they can only be used in the transition season, and cannot Meet basic heating needs. The traditional central heating methods in northern my country mainly use coal and gas, but these heating methods cannot meet the requirements of social development in terms of energy saving, environmental protection, and safety. Therefore, it is necessary to develop an ultra-low temperature heat pump air-condition...

AI Technical Summary

Problems solved by technology

[0002] At present, the ordinary air source heat pump air conditioners sold in the market have serious attenuation of heating capacity under the low temperature outdoor conditions, and even cannot start and run normally. In the cold regions of northern my country, they can only be used in the transition season, and cannot Meet basic heating needs

The traditional central heating methods in northern my country mainly use coal and gas, but these heating methods cannot meet the requirements of social development in terms of energy saving, environmental protection and safety.

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