一种汽轮机的冷油器装置
By using a connector that moves between the inner arc surface of the end cover and a tapered end face to fit the end cover in the turbine oil cooler unit, the problem of high labor intensity caused by traditional bolt connections is solved, enabling convenient disassembly and installation and improving maintenance efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FUJIAN LIANSHENG PAPER IND CO LTD
- Filing Date
- 2025-07-15
- Publication Date
- 2026-07-17
AI Technical Summary
The existing steam turbine oil cooler unit requires the removal of a large number of bolts during maintenance, resulting in high labor intensity, time and effort for workers, and affecting the normal operation of the equipment.
The connector uses a movable connection between the inner arc surface of the connector and the end cap, combined with the fit between the conical end face and the stepped end, to replace the traditional bolt connection. The end cap and the water chamber of the pipe section are connected by a ring-shaped groove through the extension end.
It shortened maintenance time, reduced the labor intensity of workers, improved work efficiency, and reduced the impact on the normal operation of equipment.
Smart Images
Figure CN224515241U_ABST
Abstract
Claims
1. A lube oil cooler arrangement for a steam turbine, characterised in that, include: The oil cooler body has a sealing flange on one edge of its outer arc surface, and an end cap on the side of the sealing flange away from the oil cooler body. The connector is movably connected to the inner arc surface of the end cap. The outer arc surface of the connector has a tapered end face, and the inner arc surface of the end cap has a stepped end. The outer arc surface of the tapered end face and the stepped end are movably engaged. One end of the outer arc surface of the connector has an extension end. The connector is movably engaged with a water chamber of a pipe section through the extension end. The top of one side of the water chamber of the pipe section has an annular groove, and the inner arc surface of the annular groove is movably engaged with the extension end. The water chamber of the pipe section is provided with a support end in the middle of the outer arc surface, and the top of the support end is movably connected to one side of the inner arc surface of the end cover. The end of the water chamber of the pipe section away from the annular groove is provided with a clamping end, and one end of the water chamber of the pipe section extends through the outside of the sealing flange. The clamping end is movably sleeved onto the inner arc surface of the oil cooler body.
2. The oil cooler arrangement of a steam turbine according to claim 1, characterized in that An annular cavity is provided at the connection between the clamping end and the body of the oil cooler. A sealing ring is fitted inside the annular cavity, and the inner arc surface of the sealing ring is interference-fitted with the outer arc surface of the clamping end.
3. The oil cooler arrangement of a steam turbine according to claim 1, characterized in that: The tail end of the oil cooler body is provided with a lower chamber. A pressure sleeve flange is fitted on the outer arc surface of the oil cooler body near the lower chamber. Multiple slots are evenly distributed circumferentially on one side of the outer arc surface of the pressure sleeve flange, and a fastening nut is connected through each slot.
4. The lube oil cooler arrangement of claim 3, characterized in that: One end of the fastening nut is connected to a connecting sleeve flange, and the inside of the connecting sleeve flange is provided with an annular sealing groove, and one side of the sealing groove is provided with an outwardly extending outer ring contour.
5. The oil cooler arrangement of a steam turbine according to claim 4, characterized in that Both the pressure sleeve flange and the connecting sleeve flange have beveled surfaces at their bottom ends. The pressure sleeve flange and the connecting sleeve flange are connected by locking teeth through the beveled surfaces at the bottom. The inner arc surface of the locking teeth has an arc-shaped groove that matches the outer arc surface of the oil cooler body.
6. The lube oil cooler arrangement of claim 4, characterized in that: An inspection hole is provided on one side of the outer ring contour on the back of the oil cooler body, and the center line of the inspection hole coincides with the center line of the sealing groove.
7. The lube oil cooler arrangement of a steam turbine according to claim 6, characterized in that The inspection hole is circular in shape.
8. A lube oil cooler arrangement for a steam turbine according to claim 6 or 7, characterised in that: The diameter of the inspection hole is 130-140 mm.