Refrigerant intermediate passage and compressor including the refrigerant intermediate passage

Abstract

The invention provides an intermediate cooling medium flow passage of a compressor. The intermediate cooling medium flow passage is a pipeline with a gradually-changing cross section as a whole, wherein the inner wall of the intermediate cooling medium flow passage is smooth. The invention further provides a two-stage rotary compressor comprising the intermediate cooling medium flow passage with the smooth inner wall. According to the intermediate cooling medium flow passage and the compressor, the inner wall of the intermediate cooling medium flow passage is smooth, so that the intermediate flow path of a cooling medium is relatively reduced, the pressure loss is reduced, and thus the energy consumption of a high-pressure cylinder is reduced; meanwhile, the occurrence of pressure pulsation at ladders is avoided, and the air suction of the high-pressure cylinder is stable, so that the air suction pressure of the high-pressure cylinder is increased, the energy consumption of the high-pressure cylinder is reduced, and the performance of the compressor is improved.

Description

technical field [0001] The invention relates to a compressor, in particular to a two-stage rotary compressor including a variable-section refrigerant intermediate passage. Background technique [0002] The continuous progress of modern society is because people are constantly pursuing a better quality of life. With the progress of the times, many excellent products are also produced, and the compressor is one of the products that keeps improving with the times. With the continuous innovation of human beings, the compressor industry has more room for development. [0003] Generally, a compressor is a mechanical device that receives power from a power generating device such as an electric motor, a turbine, etc. and then compresses air, refrigerant, or various gases. The compressor is the heart of the refrigeration system. It inhales low-temperature and low-pressure refrigerant gas from the suction pipe, drives the piston to compress it through the operation of the motor, and...

AI Technical Summary

Problems solved by technology

[0005] However, the intermediate flow path of the refrigerant in the current two-stage rotary compressor is stepped, which increases the intermediate flow of the refrigerant, increases the pressure loss, increases the energy consumption of the high-pressure cylinder, and is prone to pressure pulsation at the step, which affects Suction Stability of High Pressure Cylinders

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