A Displacement Profile Correction Method of Scroll Machine

Abstract

The invention provides a profile modification method for the displacement of a vortex compressor. The method comprises the steps of profile modification of a dynamic vortex plate and profile modification of a static vortex plate; asymmetric single arcs are adopted for modification; profile modification of the dynamic vortex plate and profile modification of the static vortex plate both adopt the single arcs; the dynamic modification arc and the static modification arc are totally engaged, and thus the gas exhaust volume of the vortex compressor is effectively increased; and under the condition of the same adiabatic compression ratio, the displacement of the vortex compressor is increased, the area of the center of tooth heads of the static vortex plate is increased, it is beneficial for forming an gas exhaust hole with the large area, and the gas exhaust loss can be effectively reduced. According to the profile modification method for the displacement of the vortex compressor, compared with common symmetric double-arc modification, under the condition of the same involute parameter and the modification abduction angle, through asymmetric single arc modification, the volume of an gas exhaust cavity of the vortex compressor can be increased by about 50%; and under the condition of the same adiabatic gas exhaust temperature, namely under the condition of the same adiabatic compression ratio, through asymmetric single arc modification, the displacement of the vortex compressor is increased by about 50%.

Description

technical field [0001] The invention belongs to the technical field of scroll compressors, and in particular relates to a displacement profile correction method of a scroll compressor. Background technique [0002] Scroll compressor is a new type of volumetric fluid machinery, which has attracted the attention of researchers for its advantages of high efficiency, high reliability, low energy consumption, and low noise. It is especially widely used in refrigeration, air conditioning, automobiles and other fields. Scroll compressor profiles mainly include: circular involute, line segment involute, Archimedes spiral, etc. Circular involute is the most widely used type of profile, because the vortex profile formed by a single involute is difficult to achieve complete meshing, and because the curvature radius of the tooth head part will be smaller than the radius of the tool circle during processing, tool interference is easy to occur . Model line correction can solve these pro...

AI Technical Summary

Problems solved by technology

These profile corrections are all aimed at reducing the volume of the discharge cavity to increase the compression ratio, but the discharge temperature of the scroll compressor is affected by the displacement and compression ratio of the scroll compressor, so that the scroll compressor can be guaranteed to operate under normal discharge conditions. Working at air temperature, increasing the compression ratio will inevitably reduce the displacement of the scroll compressor

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