Scroll compressor and refrigeration system

Abstract

The invention relates to the field of compressors, and discloses a scroll compressor and a refrigeration system. The scroll compressor includes a fixed scroll (1) and a movable scroll (2), and the movable scroll (2) Interlock with the fixed scroll (1) to form a compression chamber and can move relatively to compress the medium entering the compression chamber; the back pressure chamber (3), the pressure in the back pressure chamber (3) acts on the movable scroll ( 2) Make the movable scroll (2) in sealing contact with the fixed scroll (1). Wherein, when the movable scroll (2) and the fixed scroll (1) move relative to each other, the back pressure chamber (3) is in fluid communication with the working port of the hydraulic pump (4) or the air source device, so as to pass the hydraulic pressure The working pressure of the pump (4) or the air source device forms a pressure acting on the movable scroll (2) in the back pressure chamber (3). The scroll compressor of the present invention can conveniently make the pressure of the back pressure chamber (3) acting on the movable scroll (2) relatively constant, and has better sealing performance.

Description

technical field [0001] The present invention relates to compressors, in particular, to a scroll compressor. In addition, the invention also relates to a refrigeration system. Background technique [0002] As a positive displacement compressor, a scroll compressor is well known. The scroll compressor mainly uses the relative movement of the movable scroll and the fixed scroll to change the volume of the compression chamber therebetween to compress the medium (usually air) therein. The working process of the scroll compressor includes suction, compression and discharge. The contact between the movable scroll and the fixed scroll should be kept well sealed so that the exhaust pressure and exhaust volume can meet the requirements. Sealing is an important factor to evaluate and affect the overall performance of a scroll engine. [0003] Among them, the tightness of the scroll compressor usually depends on the pressure of the back pressure chamber, and in the traditional techn...

AI Technical Summary

Problems solved by technology

[0004] During the operation of the above-mentioned scroll compressor, the pneumatic pressure in the compression chamber is constantly changing, which causes the force of the back pressure chamber acting on the movable scroll to be not constant and fluctuate greatly, making the movable scroll In an unstable state of motion, cannot provide a reliable seal, affecting the performance of the scroll compressor

Images