A compressor stability expansion system and a compressor mechanism applied to the system

A technology for compressors and casings, applied in the field of compressors, which can solve the problems of small internal flow of compressors, limited widening range of compressor stable working conditions, and decline in compressor performance, so as to improve internal flow and expand the range of stability The effect of widening and widening the stable area
CN103953560BActive Publication Date: 2016-04-06HEFEI GENERAL MACHINERY RES INST
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI GENERAL MACHINERY RES INST
Publication Date
2016-04-06

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Abstract

The invention belongs to the technical field of a compressor, in particular to a compressor stability expanding system and a compressor mechanism applied to the same. The compressor stability expanding system comprises a sensor, a backflow channel and a controller; the sensor is a vibration sensor or / and a pressure sensor; the backflow channel is provided with an opening and closing switch; the controller is used for receiving the information of the sensor and correspondingly controlling the opening and closing switch to realize the opening and closing operation. The invention also provides the compressor mechanism applied to the compressor stability expanding system; the compressor mechanism comprises a compressor enclosure cover plate; an annular air collection cavity is arranged in the compressor enclosure cover plate in a hollow mode; the annular air collection cavity is provided with air inlets and air outlets; the air inlets penetrate through the plate body of the compressor enclosure cover plate along the axial direction of a compressor wheel axle; the air inlet ports of the air inlets are positioned in the arc surface in the compressor enclosure cover plate; the backflow channel is arranged by being communicated with the annular air collection cavity. The aim that the compressor stability expanding system is more optimized is achieved.
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Description

technical field

[0001] The invention belongs to the technical field of compressors, and in particular relates to a compressor stability expansion system and a compressor mechanism applied to the system. Background technique

[0002] Centrifugal compressors are widely used in oil refining, chemical industry, metallurgy, refrigeration and air conditioning and other fields. The centrifugal compressor has a certain stable working range. When the compressor operates in an unstable working condition, the performance will be greatly deteriorated, which may further cause the compressor to stall and surge, and even cause the machine to fail to work normally, eventually causing major accidents. Aiming at the characteristic of the stable working range of centrifugal compressors, researchers have carried out many studies, such as expanding the stable working range through compressor inlet guide vanes, diffuser adjustment and casing slotting, etc., which are published in the announcement...

Claims

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