Axial sealing strip with self-pressing characteristic for high-power scroll compressor

Abstract

The invention discloses an axial sealing strip with a self-pressing characteristic for a high-power scroll compressor, and belongs to the technical field of sealing of scroll compressors. The sealing strip body is of a spiral structure, the section of the sealing strip body is trapezoidal, a groove consistent with the section of the sealing strip body in shape is arranged on a scroll plate, and the trapezoid and the groove are sealed in a matched mode. The axial sealing strip with the self-pressing characteristic for the high-power scroll compressor provided by the invention has the beneficial effects that the lateral force is fully utilized and converted into the radial pressure of the sealing strip, and the sealing strip is tightly pressed on an end plate of a fixed scroll plate, so that the axial and radial leakage amounts of a current movable scroll plate and the fixed scroll plate are effectively reduced, the power of the scroll compressor is improved, and the volume efficiency of the scroll compressor is increased.

Description

technical field [0001] The invention relates to a self-compressing axial sealing strip for a high-power scroll compressor, belonging to the technical field of scroll compressor sealing. Background technique [0002] Scroll compressors have the advantages of simple structure, high efficiency, stable operation, and low vibration. Therefore, their application scope has gradually expanded from the initial air-conditioning, refrigeration and refrigeration industries to engine boosting equipment and new energy vehicles. However, the current working pressure of the scroll compressor is generally low, usually less than 0.7MPa, and its further wide-scale application is limited to a certain extent, so the scroll compressor is gradually developing towards high power. [0003] A high-power scroll compressor refers to a scroll compressor with 6 horses or more, and its power is usually more than 4KW. A high-power scroll compressor is composed of a shell, a fixed scroll, a movable scroll,...

AI Technical Summary

Problems solved by technology

During the working process of the high-power scroll compressor, the compression ratio of the gas in the high-pressure area is extremely high, the impact force of the gas on the moving and fixed scroll sealing strips will increase significantly, and the moving and fixed scroll sealing strips will be greatly affected by the buoyancy, which is easy to As a result, the axial gap increases sharply, and the compressed gas in the high pressure area will leak to the low pressure area through this gap, affecting the volumetric efficiency of the compressor

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