CN203918946U - A kind of 135MW nozzle of steam turbine group field stripping instrument - Google Patents
A kind of 135MW nozzle of steam turbine group field stripping instrument Download PDFInfo
- Publication number
- CN203918946U CN203918946U CN201420240479.1U CN201420240479U CN203918946U CN 203918946 U CN203918946 U CN 203918946U CN 201420240479 U CN201420240479 U CN 201420240479U CN 203918946 U CN203918946 U CN 203918946U
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- CN
- China
- Prior art keywords
- dolly
- clashing
- removal rod
- nozzle
- connecting bolt
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Abstract
A 135MW nozzle of steam turbine group field stripping instrument, the field stripping of old nozzle sets while transforming for 135MW nozzle of steam turbine group.Described extracting tool by clashing into dolly, pull parts, dismounting platform, lengthen removal rod etc. and form.Described shock dolly is comprised of four perpendicular poles, two cross support arms, two connecting axles and four rolling.Described dismounting platform both sides are with slideway, and the roller that clashes into dolly can slide in slideway, to guarantee that clashing into dolly advances by planned orbit.Described pull parts and closed by two I-shaped steel plate soldering group after again integral solder clashing on two cross support arms of dolly, during work, by pulling parts, to facilitate, to clashing into dolly, apply external force.Described lengthening removal rod one end is with hexagon socket head cap screw hole, during work, this hexagon socket head cap screw hole is installed on the connecting bolt of old nozzle sets, by clashing into dolly, to lengthening removal rod, apply external force, this external force is delivered on connecting bolt, and connecting bolt is removed easily.The utility model utilizes principle of conservation of momentum, making can produce the field stripping instrument of impulsive force, the object that reaches dismounting connecting bolt and then easily old nozzle sets is disassembled, and it can reduce hand labor intensity, increase work efficiency, save human cost.
Description
Affiliated technical field
The utility model directly applies on the field stripping of 135MW nozzle of steam turbine group old nozzle sets of when transformation.
Background technology
Most domestic 135MW steam turbine, due to design, be installed early the age, its Profile Design falls behind relatively, steam passage machining accuracy is low, gland leakage losses are serious, causes the governing stage efficiency of unit low, less economical, and has certain potential safety hazard.For improving the governing stage efficiency of unit and the economy of complete machine, security, need carry out energy saving technical reconstruction to its nozzle sets, be about to old nozzle sets and remove, the new nozzle sets of optimal design is installed.Because 135MW nozzle of steam turbine group is directly embedded on hp outer cylinder by connecting bolt, and hp outer cylinder physical dimension is bigger than normal, can not be transported to processing factory, therefore can only old nozzle sets be dismantled at Overhaul site, and new nozzle sets is installed.
The critical process of old nozzle sets dismounting is the dismounting of connecting bolt.Because Overhaul site condition is limit, the operating space of dismantling old nozzle sets connecting bolt is narrow and small, and artificial unloading's difficulty, wastes time and energy.The current domestic field stripping instrument for this kind of nozzle of steam turbine group that also do not have.
Summary of the invention
Utilize principle of conservation of momentum, design can produce the field stripping instrument of impulsive force, completes the dismounting to the old nozzle sets connecting bolt of 135MW steam turbine, increases work efficiency, and saves human cost.
The utility model solves the technical scheme that its technical problem adopts:
A 135MW nozzle of steam turbine group field stripping instrument, by clashing into dolly, pull parts, dismounting platform, lengthen removal rod etc. and form, clashes on the slideway that dolly is placed on dismounting platform both sides, lengthens removal rod and is arranged on and clashes on dolly.
Described shock dolly is comprised of four perpendicular poles, two cross support arms, two connecting axles, four rollings, wherein every cross support arm is connected with two corresponding perpendicular poles by welding manner, a connecting axle is installed in every two perpendicular pole belows, and two rollers are installed in each connecting axle end.Described dismounting platform both sides are with slideway, and the roller that clashes into dolly can slide in slideway, to guarantee that clashing into dolly advances by planned orbit.
Described pull parts and closed by two I-shaped steel plate soldering group after again integral solder clashing on two cross support arms of dolly.
Described lengthening removal rod one end is with hexagon socket head cap screw hole, and the other end is connected on the cross support arm of clashing into dolly by steel wire.On dismounting platform, LED illuminating lamp is installed to realize on-the-spot illumination functions.
During work, the hexagon socket head cap screw hole that lengthens removal rod is installed on old nozzle sets connecting bolt, by clashing into dolly, to lengthening removal rod, applies external force, this external force is delivered on connecting bolt, and connecting bolt is disassembled easily.The other end that lengthens removal rod is connected to and is clashed on dolly by steel wire, and the length of steel wire can guarantee to clash into the stroke of dolly.
The beneficial effects of the utility model are that the hand labor intensity of minimizing 135MW nozzle of steam turbine group connecting bolt field stripping, increases work efficiency, and saves human cost.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is field stripping tool construction schematic diagram of the present utility model.
Fig. 2 is the utility model operation principle schematic diagram.
In figure, 1. clash into dollies, 2. pull parts, 3. slideway, and 4. roller, 5. connecting axle, 6. perpendicular pole, 7. cross support arm, 8. dismounting platform, 9. lengthens removal rod, 10. hexagon socket head cap screw hole, 11. hp outer cylinders, 12. connecting bolts, 13. steel wires.
The specific embodiment
First according to design drawing, process roller (4), connecting axle (5), perpendicular pole (6), cross support arm (7) etc. and be assembled into and clash into dolly (1), according to drawing assembly and disassembly platform (8), the slideway (3) that the roller (4) that clashes into dolly (1) is positioned over to dismounting platform (8) is upper, and the parts (2) that pull that process are welded on the cross support arm (7) of clashing into dolly (1).Then process the lengthening removal rod (9) with hexagon socket head cap screw hole (10), and be connected to and clashed into dolly (1) above by steel wire (13), the length of steel wire (13) is suitably adjusted as required.
Overhaul site, the upper installation of old nozzle sets connecting bolt (12) on the hp outer cylinder that will dismantle (11) lengthens removal rod (9), then will clash into the upright position that dolly (1) is placed on connecting bolt (12) end face that will dismantle.Pull to clash into and pull parts (2) on dolly (1), rely on and clash into the roller (4) of dolly (1) at the upper mobile kinetic energy producing of slideway (3) of dismounting platform (8), make to pull parts (2) and collide lengthening removal rod (9), thereby make connecting bolt (12) loosening, reach dismounting connecting bolt (12) also and then the object easily old nozzle sets being disassembled.
Claims (4)
1. a 135MW nozzle of steam turbine group field stripping instrument, it is characterized in that: by clashing into dolly, pull parts, dismounting platform, lengthen removal rod etc. and form, clashing into dolly is placed on the slideway of dismantling platform both sides, lengthening removal rod is arranged on shock dolly, lengthen removal rod one end with hexagon socket head cap screw hole, the other end is connected on the cross support arm of clashing into dolly by steel wire.
2. extracting tool according to claim 1, is characterized in that: described shock dolly is comprised of four perpendicular poles, two cross support arms, two connecting axles and four rolling.
3. extracting tool according to claim 1, is characterized in that: described in pull parts and closed by two I-shaped steel plate soldering group after again integral solder clashing on two cross support arms of dolly.
4. according to the extracting tool described in claim 2 or 3, it is characterized in that: on described dismounting platform, LED illuminating lamp is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240479.1U CN203918946U (en) | 2014-05-08 | 2014-05-08 | A kind of 135MW nozzle of steam turbine group field stripping instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420240479.1U CN203918946U (en) | 2014-05-08 | 2014-05-08 | A kind of 135MW nozzle of steam turbine group field stripping instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203918946U true CN203918946U (en) | 2014-11-05 |
Family
ID=51814821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420240479.1U Expired - Fee Related CN203918946U (en) | 2014-05-08 | 2014-05-08 | A kind of 135MW nozzle of steam turbine group field stripping instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203918946U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584358A (en) * | 2016-11-05 | 2017-04-26 | 合肥辰泰安全设备有限责任公司 | Nozzle fastening device |
-
2014
- 2014-05-08 CN CN201420240479.1U patent/CN203918946U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106584358A (en) * | 2016-11-05 | 2017-04-26 | 合肥辰泰安全设备有限责任公司 | Nozzle fastening device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100044 18th floor, Fangyuan building, No.56, Zhongguancun South Street, Haidian District, Beijing Patentee after: Beijing Guoneng Longwei Power Generation Technology Co.,Ltd. Address before: 100044 18th floor, Fangyuan building, No.56, Zhongguancun South Street, Haidian District, Beijing Patentee before: BEIJING LONGWEI POWER GENERATION TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141105 |