Heat pump temperature adjusting system, heat pump type airplane ground air conditioning unit and temperature adjusting control method

Abstract

The invention discloses a heat pump temperature adjusting system, a heat pump type airplane ground air conditioning unit and a temperature adjusting control method. The heat pump temperature adjusting system comprises a first compressor, a four-way reversing valve, a first use side heat exchanger, a drying filter, a first thermostatic expansion valve, a first cold and heat source side heat exchanger, a four-way reversing valve and a first gas-liquid separator which are sequentially and cyclically arranged. A heat pump temperature adjusting mode can be adopted for the heat pump temperature adjusting system, a reverse Carnot cycle is utilized, through a small amount of high-grade electric energy input, low-grade heat energy in atmosphere is transferred into use side air, the energy efficiency ratio is greatly increased, the energy efficiency ratio of the system can reach up to 3.0 to 3.5, energy consumption is reduced to 14%-16% of electric heating energy consumption, and a large amount of energy is saved.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a heat pump temperature regulation system, a heat pump type aircraft ground air conditioning unit and a temperature regulation control method. Background technique [0002] The aircraft ground air conditioning unit refers to the air conditioning equipment that provides filtered, pressurized, dehumidified and dehumidified (or heated) fresh air for the aircraft parked on the ground. [0003] Before the emergence of aircraft ground air conditioning units, aircraft usually used their self-provided air conditioning system for cabin heating. operating and maintenance costs. [0004] The use of aircraft ground air conditioning units can reduce the use of aircraft APU, reduce the consumption of expensive aviation fuel, prolong the service life of aircraft air conditioning systems, reduce air pollution, and achieve energy saving and emission reduction. Vigorously developing air...

AI Technical Summary

Problems solved by technology

[0005] However, the aircraft ground air-conditioning units in the prior art usually only use electric heaters for heating. This heating method solves the problems of shortened service life of the aircraft's self-configured air-conditioning system and high aircraft operation and maintenance costs. However, since its own energy efficiency ratio is only 0.95 to 0.98, there is still a large amount of energy waste in the current aircraft ground air-conditioning units. Policies and requirements for building an energy-saving and environment-friendly society

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