Intercooler for heat pump

Abstract

The invention discloses an intercooler for a heat pump, which comprises a tank body (3). a gas inlet pipe (1) and a gas outlet pipe (4) are mounted on the tank body (3); the gas inlet pipe (1) is connected with a heat pump refrigeration system; a liquid supply pipe (2) for carrying out throttling pressure reduction on a high-pressure liquid working medium to form a low-pressure gas-liquid mixed working medium and then conveying the low-pressure gas-liquid mixed working medium into the tank body (3) is also mounted on the tank body (3); a gas distributor (8) connected with the gas inlet pipe (1) is arranged in an inner cavity of the tank body (3) and is used for distributing refrigeration system overheated working medium gas input by the gas inlet pipe (1) into a low-pressure saturated liquid working medium. According to the intercooler disclosed by the invention, a system heating COP (Coefficient of Performance) can be improved; the problems of excessively high discharge temperature and oil blowout phenomenon, which a high-temperature heat pump system is easy to generate, are solved, and meanwhile, a phenomenon of asymmetry of a load at a low-temperature heat source side and an actual recycled load of the heat pump also can be avoided.

Description

technical field [0001] The invention relates to a cooler, in particular to an intercooler for a heat pump system. Background technique [0002] Heat pumps are not only widely used in industrial production, but also integrated into every aspect of people's lives. [0003] The heat exchanger is one of the important components of the heat pump. It can be divided into three categories: partition type, hybrid type and heat storage type according to the principle and method of heat exchange between cold and hot fluids. At present, most heat pumps use partition wall heat exchangers, which require a certain heat exchange temperature difference to drive heat exchange. As a low-temperature heat source, the refrigeration system is difficult to ensure sufficient heat transfer temperature difference, and the heat transfer grade of the heat source is low, which makes the heating performance of the heat pump system always unsatisfactory. [0004] On the other hand, under different workin...

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Problems solved by technology

[0006] The present invention proposes an intercooler for heat pumps, the purpose of which is: (1) to improve the system heating performance coefficient COP; (2) to solve the problems of high exhaust temperature and oil injection in high-temperature heat pump systems; (3) ) to avoid the asymmetry between the low-temperature heat source side load and the actual recoverable load of the heat pump

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