A rotor compressor with a backflow prevention structure and a working method thereof

By setting an enthalpy-increasing channel and a movable baffle on the outer circle of the intermediate plate, the channel can be automatically opened and closed by utilizing the gas pressure difference, which solves the problem of gas backflow in the compressor, improves heating capacity and operating efficiency, and reduces noise.

CN122407544APending Publication Date: 2026-07-17BITZER ROTARY COMPRESSOR (JIANGSU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BITZER ROTARY COMPRESSOR (JIANGSU) CO LTD
Filing Date
2026-04-13
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During compressor operation, the gas in the high-pressure chamber may flow in the reverse direction along the gas supply channel, resulting in gas backflow, which leads to reduced efficiency and increased noise.

Method used

An enthalpy-increasing channel is set on the outer circle of the intermediate plate, including a first channel, a second channel and a third channel that are connected to each other. An annular groove is opened in the inner wall of the first channel. A partition is movably set in the annular groove. A through hole is set on the partition near the edge, penetrating the thickness direction. The partition is driven to move in the annular groove by the gas pressure difference, so as to realize the intelligent opening and closing of the enthalpy-increasing channel.

Benefits of technology

It effectively prevents high-pressure gas backflow, improves the compressor's heating capacity and operating efficiency, and reduces noise. It also features a compact structure and high reliability.

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Abstract

本发明涉及一种具有防回流结构的转子压缩机及其工作方法,涉及压缩机技术领域。该转子压缩机包括壳体、电机和泵体组件,泵体组件包括曲轴、气缸、活塞和中间板,中间板外圆上设置有包括第一通道、第二通道和第三通道的增焓通道,第一通道内壁开设环槽,环槽内设置可移动隔板,隔板上设有过孔,第一通道与环槽间设有锥形过渡腔段,隔板能在气体压力作用下在环槽内移动,正向补气时打开增焓通道,反向回流时关闭增焓通道。本发明可以有效防止补气通道中的气体回流现象,提高压缩机制热能力和运行效率,同时降低噪声。
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