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Parallel compression co2 car heat pump air conditioning system with heat recovery device

A heat pump air conditioner, compression technology, applied in vehicle components, transportation and packaging, air handling equipment, etc., can solve problems such as poor heating performance, and achieve the effect of improving performance, efficient operation, and reducing energy consumption

Active Publication Date: 2021-06-11
SHANGHAI JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the refrigerant commonly used in automotive air conditioners is R134a, but it has a very high GWP (Global Warming Potential) and has very poor heating performance at low temperatures. It is particularly important to find suitable alternative refrigerants and heat pump technologies

Method used

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  • Parallel compression co2 car heat pump air conditioning system with heat recovery device
  • Parallel compression co2 car heat pump air conditioning system with heat recovery device
  • Parallel compression co2 car heat pump air conditioning system with heat recovery device

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Experimental program
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Embodiment Construction

[0016] like figure 1 As shown, this embodiment includes: two parallel scroll compressors 19 and 24 connected coaxially, a gas cooler 6, an outdoor heat exchanger 27, an intermediate heat exchanger 11, a gas-liquid separator 18, an evaporator 3 and The liquid storage tank 10, wherein: the outlet 20 of the first scroll compressor and the outlet 22 of the second scroll compressor are connected to the input end of the gas cooler 6, and the output end of the gas cooler 6 is exchanged with the middle through the outdoor heat exchanger 27 The high-pressure input end 16 of the heat exchanger 11 is connected, the high-pressure output end 17 of the intermediate heat exchanger 11 is connected with the input end of the gas-liquid separator 18, and the gas output end of the gas-liquid separator 18 is connected with the second scroll compressor inlet 23 , the liquid output end of the gas-liquid separator 18 is connected to the evaporator 3 and the liquid storage tank 10 in turn, the output ...

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Abstract

A Parallel Compression CO with Regenerator 2 Automobile heat pump air conditioning system, including: two parallel scroll compressors connected coaxially, gas cooler, outdoor heat exchanger, intermediate heat exchanger, gas-liquid separator, evaporator and liquid storage tank, of which: two scroll compressors The output end of the rotary compressor is connected to the gas cooler, outdoor heat exchanger, intermediate heat exchanger and gas-liquid separator in turn, and the gas phase output end of the gas-liquid separator is connected to the input end of the second scroll compressor, and the gas-liquid separation The output end of the liquid phase of the compressor is connected with the evaporator and the liquid storage tank in turn, and connected with the input end of the first scroll compressor through an intermediate heat exchanger. High temperature refrigerant, superimposed with parallel compression effect to achieve performance optimization. In the refrigeration mode, the present invention adopts a parallel compression scheme to solve the problem of CO 2 The problem of refrigerant efficiency decay in high temperature environment reduces energy consumption.

Description

technical field [0001] The invention relates to a technology in the field of vehicle air conditioners, in particular to a parallel compression CO 2 Automotive heat pump air conditioning system. Background technique [0002] For heating in winter, compared with traditional internal combustion engine vehicles, electric vehicles have no engine waste heat that can be used, and heat pump technology is becoming more and more popular in electric vehicles. At present, the refrigerant commonly used in automotive air conditioners is R134a, but it has a very high GWP (Global Warming Potential), and its heating performance at low temperatures is very poor. It is particularly important to find suitable alternative refrigerants and heat pump technologies. Contents of the invention [0003] Aiming at the above-mentioned deficiencies in the prior art, the present invention proposes a parallel compression CO 2 The automotive heat pump air-conditioning system can switch between cooling an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60H1/00
Inventor 俞彬彬王丹东杨婧烨柳慈翀蒋甫政王雨风张振宇高天元施骏业陈江平
Owner SHANGHAI JIAOTONG UNIV
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