Heat pump air-conditioner heating system

Abstract

The invention relates to the field of heating, in particular to a heat pump air-conditioner heating system with a heat-gain heat exchanger. When the air temperature is below minus 5 DEG C to 14 DEG C,the most effective way for improving the superheat degree of a refrigerant is raising the temperature of a compressor air inlet pipe of a heat pump air conditioner so as to improve the local environment through the heat-gain heat exchanger. Therefore, atmosphere or other low-temperature heat sources are absorbed in the earlier stage of the refrigerant, and under the circumstance with a certain superheat degree, the superheat degree of the refrigerant is improved for the second time so as to enable the heat pump air conditioner to run high-efficiently in an energy-saving way. According to theheat pump air-conditioner heating system provided by the invention, a solar water heater can be adopted for improving the superheat degree of the compressor air inlet pipe of the heat pump air conditioner through the heat-gain heat exchanger, and the superheat degree of the compressor air inlet pipe of the heat pump air conditioner can be further improved through the heat-gain heat exchanger in adistributing manner from a compressor exhaust pipe to a distributing pipe.

Description

technical field [0001] The invention relates to the field of heating, in particular to a heat pump air conditioning and heating system with a heat increasing heat exchanger. Background technique [0002] With the rapid development of social economy, environmental protection has become the national policy of our country. Environmental protection is mainly to protect the atmosphere, water, soil, vegetation and so on. Now due to the extensive use of various energy minerals, our atmospheric environment has been overwhelmed, and haze weather often occurs, so that we sometimes have to live in a smoky environment. Especially in the heating season in most parts of northern my country in winter, this smoky atmospheric environment phenomenon often occurs, which seriously affects our life. Such an atmospheric environment has attracted the attention and attention of the Party Central Committee, the State Council, governments at all levels and all walks of life. In order to reverse th...

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Problems solved by technology

[0004] However, when the heat pump air conditioner is cooling in winter, a common problem is that when the external temperature is lower than -5-14°C (mostly within this range due to different design parameters when designing various models), the refrigerant of the heat pump air conditioner will flow from the outside air. There is very little heat extracted from the air conditioner, and the superheat is very low. The sensible heat released by the compressor after compression is also low. As the saying goes: the colder the outside of the air conditioner, the colder the room

Based on this situation, air source heat pump air conditioners often use increasing the area of ​​the evaporator, increasing the amount of refrigerant circulation, or even increasing the air volume of the external fan to improve the superheat of the low-pressure steam. However, there is a limit to any modification, and the air conditioner cannot be changed. The temperature environment

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