Novel compression/injection mixed refrigerating cyclic system used for double-temperature refrigerator

Abstract

A novel compression / injection mixed refrigerating cyclic system used for a double-temperature refrigerator comprises a compressor, an outlet of the compressor is connected with an inlet of a condenser, the outlet of the condenser is divided into two paths, one path is connected with a first jet nozzle of a double-jet nozzle ejector, the other path is connected with an inlet of an evaporator of a refrigerating chamber by a first capillary tube, and an outlet of the evaporator of the refrigerating chamber is connected with a second jet nozzle of the double-jet nozzle ejector; the double-jet nozzle ejector is connected with an outlet of the evaporator of the refrigerating chamber by an injection refrigerating agent inlet; an outlet of the double-jet nozzle ejector is connected with an inlet of a gas-liquid separator; an outlet of the gas-liquid separator is divided into two paths, one path is that a saturated gas-state refrigerating agent outlet is connected with an inlet of the compressor, and the other path is that a saturated liquid-state refrigerating agent outlet is connected with the inlet of the evaporator of the refrigerating chamber by a second capillary tube; and the double-jet nozzle ejector fully utilizes the expansion work in the throttling process in a refrigerating system, the suction pressure and the gas output quantity of the compressor can be promoted obviously, the power consumption of the compressor is reduced, the performance of the refrigerating cyclic system is improved effectively, and the refrigeration of the refrigerating chamber and the evaporator of the refrigerating chamber can be realized simultaneously.

Description

technical field [0001] The invention belongs to the technical field of refrigeration of refrigerators, and in particular relates to a novel compression / jet hybrid refrigeration cycle system for dual-temperature refrigerators. Background technique [0002] In recent years, my country's economy has developed rapidly, people's living standards have been greatly improved, and the demand and use of household refrigerators are also increasing. As one of the necessary household appliances in modern families, refrigerators consume about 30% to 40% of the total electricity consumption of the entire family, which makes the problem of energy saving of refrigerators extremely prominent. With the development and popularization of household refrigerators, energy saving and environmental protection have become the development trend of refrigerator products. Therefore, developing new refrigeration technology for refrigerators and improving the energy-saving level of refrigerators will prom...

AI Technical Summary

Problems solved by technology

Since the conventional ejector only uses one nozzle, it can only realize the expansion work of one refrigerant recovery throttling process in the cycle system, so it has limited ability to improve system performance

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