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Heat pump type air conditioner refrigerating circulating system with subcooler

A technology of circulation system and refrigeration cycle, applied in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of affecting indoor thermal comfort, long defrosting time, etc., to improve energy efficiency, slow down frost formation, and increase evaporation temperature Effect

Inactive Publication Date: 2016-04-06
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the most widely used reverse cycle defrosting method has problems such as affecting indoor thermal comfort and long defrosting time.

Method used

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  • Heat pump type air conditioner refrigerating circulating system with subcooler

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Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] Such as figure 1 As shown, a heat pump air conditioner refrigeration cycle system with a subcooler includes: a liquid accumulator 101, a compressor 102, a four-way reversing valve 103, an indoor heat exchanger 104, a one-way valve 105, an electronic expansion Valve 106, subcooler 107, electronic expansion valve 108, one-way valve 109, outdoor heat exchanger 110 and other components. The liquid accumulator 101, compressor 102, four-way reversing valve 103, subcooler 107, electronic expansion valve 108, check valve 109, and outdoor heat exchanger 110 are located on the outdoor side, and the indoor heat exchanger 104 Located on the interior side. Without changing the connection position, the one-way valve 105 and the electronic expansion valve 106 can be located indoors or outdoors. When the system works, the outdoor air first ...

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PUM

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Abstract

A heat pump type air conditioner refrigerating circulating system with a subcooler comprises a liquid storage device, a compressor, a four-way reversing valve, an indoor-side heat exchanger, a one-way valve, an electronic expansion valve, the subcooler and an outdoor-side heat exchanger. The liquid storage device, the compressor, the four-way reversing valve, the subcooler and the outdoor-side heat exchanger are located on the outdoor side and the indoor-side heat exchanger is located on the indoor side. Outdoor air passes the subcooler firstly and then flows through the outdoor-side heat exchanger. When the system is in a heating circulating mode, the indoor-side heat exchanger serves as a condenser, the outdoor-side heat exchanger serves as an evaporator, a high-temperature refrigerating agent is condensed and emits heat in the indoor-side heat exchanger to supply heat to the indoor environment and then flows into the subcooler to emit heat, on the one hand, the refrigerating agent is further subcooled, and on the other hand, the temperature of air entering the outdoor-side heat exchanger is increased, the evaporation temperature of the system is increased, and frost formation of the outdoor-side heat exchanger is effectively slowed. The subcooler still can further subcool the refrigerating agent when the system is in a refrigerating circulating mode.

Description

technical field [0001] The invention belongs to the technical field of refrigeration and air conditioning, and in particular relates to a heat pump type air conditioner refrigeration system with a subcooler. Background technique [0002] Heat pump air conditioner is an energy-saving and environment-friendly heating and cooling equipment. It is a device that consumes electric energy to make heat flow from a low-temperature heat source to a high-temperature heat source. Although the heat pump air conditioner consumes a certain amount of electric energy, the heat provided is the sum of the consumed electric energy and the low-temperature heat absorbed. Therefore, the use of heat pump air conditioners can achieve the purpose of energy saving. However, when the heat pump air conditioner is heating in winter, the outdoor air temperature is low, and the evaporation temperature of the heat pump air conditioner system is too low. When the evaporation temperature is lower than the fr...

Claims

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Application Information

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IPC IPC(8): F25B47/02F25B41/00F25B13/00F25B41/40
CPCF25B13/00F25B41/006F25B47/02F25B2313/02322F25B2347/02
Inventor 鱼剑琳陈旗晏刚
Owner XI AN JIAOTONG UNIV
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