Supercritical steam turbine rotor axial positioning device
By using a supercritical steam turbine rotor axial positioning device, the gap between the rotor blade tip and the diaphragm is precisely controlled by using set screws and tightening bolts. Combined with copper protective gaskets to protect the diaphragm and rotor blades, the problem of insufficient rotor axial positioning accuracy is solved, and efficient and safe positioning operation is achieved.
CN224326319UActive Publication Date: 2026-06-05JIANTOU CHENGDE THERMAL POWER CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANTOU CHENGDE THERMAL POWER CO LTD
- Filing Date
- 2025-08-20
- Publication Date
- 2026-06-05
Smart Images
Figure CN224326319U_ABST
Abstract
The utility model discloses a kind of supercritical steam turbine rotor axial positioning devices, involve steam turbine field.It includes the fixed main body of the "L" type, fixed including the short arm of horizontal arrangement and the long arm perpendicular to short arm, short arm and long arm are all provided with through hole, long arm is provided with threaded hole, threaded hole is parallel to short arm arrangement, and threaded hole is screw-threaded connected with top pin, long arm outside is provided with threaded blind hole, threaded blind hole is connected with threaded hole, and threaded blind hole is screw-threaded connected with jacking bolt, jacking bolt is vertically arranged with top pin, and with top pin abuts.The beneficial effects of the utility model are: fixed main body "L" type structure to short arm is placed on the partition, long arm is finely adjusted with the partition gap by top pin and is locked by jacking bolt, accurately control rotor blade top and the partition gap, ensure that rotor axial positioning meets K value range, meet the accurate positioning demand of supercritical steam turbine rotor.
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