A method for pre-adjusting total tip clearance of centrifugal compressor impeller
By using a clamping device and gaskets to replace the main cover in a centrifugal compressor for pre-adjusting the impeller's overall axial movement clearance, the problem of repeatedly disassembling the main cover in existing technologies is solved, improving measurement efficiency and quality, reducing labor intensity, and shortening maintenance time.
Patent Information
- Application Number
- CN202311242230.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2023-09-25
- Publication Date
- 2026-06-23
- Estimated Expiration
- 2043-09-25
AI Technical Summary
Existing technology requires repeated disassembly of the cover when measuring the total impeller clearance of an Ingersoll Rand centrifugal compressor, which is time-consuming and labor-intensive, and requires high installation experience and technical expertise, making it difficult to quickly and efficiently measure and adjust the total impeller clearance.
The method of not installing the unit cover is adopted. The clamping device and washers are connected by bolt holes on the casing to replace the cover for clamping. The force is controlled by adjusting the bolts to achieve the pre-adjustment of the total impeller axial movement clearance. The specific steps include installing washers, adjusting the diffuser position and measuring the clearance until the requirements are met, and then removing the clamping device.
This allows for the pre-adjustment of the total axial clearance without the cover being installed, avoiding the increased workload caused by the disassembly of the cover, improving work efficiency, reducing labor intensity, shortening the maintenance period, and ensuring maintenance quality.