Ejection refrigerating cycle device

A refrigeration cycle and ejector technology, which is used in refrigerators, refrigeration components, refrigeration and liquefaction, etc., can solve the problems of narrow operating condition range and low mixing efficiency of ejector refrigeration cycle inverter air conditioners, and achieve simple structure and material saving. and the effect of production costs
CN104089424AActive Publication Date: 2014-10-08GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
Publication Date
2014-10-08

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Abstract

The invention provides an ejection refrigerating cycle device which comprises a compressor, an outdoor heat exchanger, a gas-liquid separator, an indoor heat exchanger, an ejector, a first electronic expansion valve and a second electronic expansion valve. An exhaust port of the compressor is connected with the outdoor heat exchanger through a pipeline, the other end of the outdoor heat exchanger is connected with the first electronic expansion valve through a pipeline, and the other end of the first electronic expansion valve is connected with the gas-liquid separator through a pipeline. The gas-liquid separator is provided with a gas outlet and a liquid outlet, the gas outlet is connected with a first inlet of the ejector, and the liquid outlet is connected with the second electronic expansion valve through a pipeline. The other end of the second electronic expansion valve is connected with the indoor heat exchanger, the other end of the indoor heat exchanger is connected with a second inlet of the ejector, and an outlet of the ejector is connected with a gas suction port of the compressor through a pipeline. When the working condition of the air conditioner is changed, the working medium state and flow of the first inlet of the ejector are adjusted through the first electronic expansion valve, the application working condition range of the ejector is widened, the application efficiency of the ejector is increased, and operation energy efficiency of the air conditioner is increased.
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Description

technical field

[0001] The invention relates to the technical field of air-conditioning refrigeration cycle devices, in particular to an injection refrigeration cycle device. Background technique

[0002] Vapor compression / ejection refrigeration system is an effective energy-saving refrigeration system, which can reduce throttling expansion loss, reduce compressor pressure ratio, greatly improve refrigeration system efficiency, and its utilization potential is huge. At present, there is no practical application of ejectors in the household air-conditioning industry, and they are only reported in some scientific papers. However, the application conditions of the ejector in the vapor compression / injection refrigeration system in the existing scientific papers are very narrow, and the design idea is point-to-point design, and the ejector is designed according to the specific refrigeration cycle working conditions (evaporation temperature, condensation temperature, etc.) Due to...

Claims

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