Centrifugal compressor
By balancing the axial force on the rotor through the magnetic attraction of the inner and outer magnetic rings, the problem of dry friction of the rotor air-float thrust bearing in centrifugal compressors is solved, thereby improving the stability and lifespan of the rotor.
CN116696835BActive Publication Date: 2026-03-20XECA TURBO (CHENGDU) TECH CO LTD
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Patent Information
- Application Number
- CN202310749946.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-21
- Publication Date
- 2026-03-20
- Estimated Expiration
- 2043-06-21
AI Technical Summary
Technical Problem
In centrifugal compressors, the air-bearing thrust bearings on the rotor are prone to dry friction during startup or overload, which can lead to damage, affect service life, and reduce stability.
Method used
The axial force on the rotor is balanced by the magnetic attraction of the inner and outer magnetic rings. At least part of the axial force on the rotor is offset by the magnetic attraction between the inner and outer magnetic rings, which avoids dry friction of the air-bearing thrust bearing and ensures the stability of the rotor.
Benefits of technology
This effectively avoids dry friction of the air-bearing thrust bearing on the rotor, reduces heat generation, and improves the stability and service life of the rotor.
✦ Generated by Eureka AI based on patent content.
Abstract
The present application relates to a kind of centrifugal compressor, including shell, rotor, inner magnetic ring and outer magnetic ring, the rotor is arranged in the shell, the inner magnetic ring is arranged on the rotor, the outer magnetic ring is arranged on the shell, the outer magnetic ring is sleeved on the inner magnetic ring and with the inner magnetic ring in the radial direction of the rotor with gap, the inner circumferential surface of the outer magnetic ring and the outer circumferential surface of the inner magnetic ring on pole opposite.The centrifugal compressor of the present application, when the rotor bears external axial force, the axial force received by the rotor is balanced by the magnetic attraction force between the inner magnetic ring and the outer magnetic ring, at least part of the axial force acting on the rotor is cancelled, to avoid dry grinding of the gas floating thrust bearing on the rotor, reduce the heating condition of the gas floating thrust bearing, ensure the stability of the rotor under different working conditions of centrifugal compressor.
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