Ultra-low temperature heat recovery multivariant heat pump air conditioning system

Abstract

The invention discloses an ultra-low temperature heat recovery multivariant heat pump air conditioning system comprising a compressor, an indoor heat exchanger, an outdoor heat exchanger, a flash vaporization intercooler, a gas-liquid separator, an electronic expansion valve and an electronic valve. The ultra-low temperature heat recovery multivariant heat pump air conditioning system can supply cool sources and heat sources for buildings needing cooling and heating simultaneously all the year round to realize the flexible adjustment of room temperature, can simultaneously utilize the refrigeration load and the evaporation load of a refrigerating system to greatly improve the utilization ratio of energy sources, and can be normally started up and run and achieve favorable heating effect when running for heating under the working condition of ultra-low temperature in winter, so that the heat recovery multivariant heat pump air conditioning system can be used both in the north or the south. The invention has the advantages of less equipment investment, energy source consumption reduction, no environment protection, system energy efficiency ratio improvement and running cost reduction.

Description

1. Technical field [0001] The invention relates to the field of heat recovery multi-element heat pump air conditioners, in particular to an ultra-low temperature heat recovery multi-element heat pump air conditioner system with good heating effect under outdoor ultra-low temperature conditions. 2. Background technology [0002] The existing heat recovery multi-element heat pump air-conditioning system, under the condition of outdoor ultra-low temperature, the heating capacity attenuation is very serious, and even cannot be started and operated normally. Therefore, traditional heating methods are generally still used in cold regions. These heating methods consume a lot of electricity, minerals or oil, which pollutes the environment and is not economical. Now the world advocates energy saving and emission reduction, so it is necessary to develop a The ultra-low temperature heat recovery multiple heat pump air conditioning system with low equipment investment, reduced energy co...

AI Technical Summary

Problems solved by technology

[0002] The existing heat recovery multi-element heat pump air-conditioning system, under the condition of outdoor ultra-low temperature, the heating capacity attenuation is very serious, and even cannot be started and operated normally. Therefore, traditional heating methods are generally still used in cold regions. These heating methods consume a lot of electricity, minerals or oil, which pollutes the environment and is not economical. Now the world advocates energy saving and emission reduction, so it is necessary to develop a Low equipment investment, reduced energy consumption, no pollution to the environment Increased energy consumption of the system and reduced operating costs Ultra-low temperature heat recovery multi-element heat pump air conditioning system

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