CN217801494U - Tool for disassembling main valve core of steam turbine - Google Patents
Tool for disassembling main valve core of steam turbine Download PDFInfo
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- CN217801494U CN217801494U CN202221831147.1U CN202221831147U CN217801494U CN 217801494 U CN217801494 U CN 217801494U CN 202221831147 U CN202221831147 U CN 202221831147U CN 217801494 U CN217801494 U CN 217801494U
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- sleeve
- shifting
- main valve
- steam turbine
- positioning mechanism
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Abstract
The utility model relates to a main valve core dismounting tool of a steam turbine, which comprises a dismounting table, wherein a first positioning mechanism for limiting a main valve disc, a second positioning mechanism for limiting a valve rod and a shifting-out mechanism for shifting a bush out of the main valve disc are arranged on the dismounting table; the shifting mechanism comprises a shifting sleeve and a stressed sleeve, a through hole for the valve rod to pass through is formed in the axis of the shifting sleeve, the shifting sleeve is sleeved on the valve rod, the lower end of the shifting sleeve is inserted into the main valve disc, the top surface of the bushing is connected with two screw rods, a mounting hole for each screw rod to pass through is formed in the shifting sleeve, accommodating grooves for accommodating the upper ends of the screw rods are formed in two sides of the shifting sleeve respectively, and the nuts are mounted on the corresponding screw rods through the accommodating grooves. This application has effectively reduced the bush through the cooperation of first positioning mechanism, second positioning mechanism and shifting-out mechanism and has shifted out the degree of difficulty, can avoid destructive demolising, greatly reduced cost of overhaul.
Description
Technical Field
The utility model relates to a thermal power equipment technical field especially relates to frock is dismantled to steam turbine main throttle valve case.
Background
The steam turbine is also called as a steam turbine engine, and is a rotary steam power device.A high-temperature high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates and does work outwards. Steam turbines are the main equipment of modern thermal power plants, and are also used in the metallurgical industry, chemical industry and ship power plants.
The main valve needs to be disassembled and maintained after the steam turbine runs for a period of time, the structure of the main valve is shown in figure 1 in the attached drawing of the specification, the main valve comprises a main valve disc, a lining and a valve rod, the lining is sleeved on the valve rod, and the lining is located inside the main valve disc. Because the bush leads to the bush to shift out very difficultly in the inside of main valve dish, in addition the valve is in high temperature high pressure environment for a long time, and reasons such as soda quality lead to appearing scale deposit cinder etc. for the bush is dismantled the degree of difficulty and is further strengthened.
At present, the conventional main throttle valve disassembly mode in the factory is to adopt destructive disassembly, so that the maintenance cost is very high, and based on the technical problem, the application provides a main throttle valve core disassembly tool for the steam turbine.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to prior art's not enough, provide steam turbine main throttle valve case and dismantle frock.
The utility model is realized by the following technical scheme, the main valve core dismounting tool of the steam turbine is provided, the tool comprises a dismounting table, a first positioning mechanism for limiting a main valve disc, a second positioning mechanism for limiting a valve rod and a shifting-out mechanism for shifting out a bush from the main valve disc are arranged on the dismounting table; the shifting mechanism comprises a shifting sleeve and a stressed sleeve, a through hole for the valve rod to pass through is formed in the axis of the shifting sleeve, the shifting sleeve is sleeved on the valve rod, the lower end of the shifting sleeve is inserted into the main valve disc, the top surface of the bushing is connected with two screw rods, a mounting hole for each screw rod to pass through is formed in the shifting sleeve, accommodating grooves for accommodating the upper ends of the screw rods are formed in two sides of the shifting sleeve respectively, and the nuts are mounted on the corresponding screw rods through the accommodating grooves; the shifting sleeve and the bushing are connected into a whole through the matching of the screw and the nut, and the bushing can be driven to synchronously move along with the displacement of the shifting sleeve, so that the bushing is shifted out of the main valve disc; the upper part of the shifting-out sleeve is provided with a hexagonal boss, the stress sleeve is a hexagonal sleeve, the stress sleeve is sleeved on the hexagonal boss, and the stress sleeve is fixedly connected with a knocking plate.
Preferably, the force-bearing sleeve and the removing sleeve are connected through a fastening bolt.
Preferably, in order to enable the bushing and the shifting-out sleeve to be connected more tightly, a clamping groove is formed in the bottom surface of the shifting-out sleeve and is matched with the boss on the top surface of the bushing.
Preferably, be equipped with two screw holes on the bush top surface, the lower extreme of every screw rod all is connected with the screw hole.
First positioning mechanism includes two first stoppers, and two first stoppers are located the both sides of main valve dish respectively, and every first stopper is equal fixed mounting on disassembling the platform, and is spacing to the main valve dish through two first stoppers, and the main valve dish displacement when avoiding the hammering to strike the board.
Preferably, the second positioning mechanism is a positioning plate, the positioning plate is fixedly mounted on the disassembling platform, the front end of the valve rod is positioned through the positioning plate, and the valve rod is prevented from displacing when the valve rod is knocked.
The utility model has the advantages that:
this application has effectively reduced the bush through the cooperation of first positioning mechanism, second positioning mechanism and shifting-out mechanism and has shifted out the degree of difficulty, can avoid destructive demolising, greatly reduced cost of overhaul.
Drawings
FIG. 1 is a schematic view of a conventional main valve structure;
FIG. 2 is a front view of the shift-out sleeve of the present invention;
FIG. 3 is a schematic top view of the removing sleeve of the present invention;
FIG. 4 is a top view of the overall structure of the present invention;
FIG. 5 is an enlarged view of a portion A of FIG. 4;
shown in the figure:
1. move out the cover, 2, accomodate the groove, 3, the mounting hole, 4, through-hole, 5, draw-in groove, 6, hexagonal boss, 8, disassemble the platform, 9, first stopper, 10, main valve dish, 11, bush, 12, valve rod, 13, locating plate, 14, nut, 15, screw rod, 16, atress cover, 17, fastening bolt, 18, strike the board.
Detailed Description
In order to clearly explain the technical features of the present solution, the present solution is explained by the following detailed description.
As shown in fig. 2-5, the utility model discloses a disassemble platform 8, be equipped with on disassembling platform 8 and be used for the first positioning mechanism spacing to main valve dish 10 for to the second positioning mechanism spacing of valve rod 12 and be used for shifting out the mechanism with bush 11 from main valve dish 10.
The shifting mechanism comprises a shifting sleeve 1 and a stressed sleeve 16, a through hole 4 for the valve rod 12 to pass through is formed in the axis of the shifting sleeve 1, as shown in fig. 5, the shifting sleeve 1 is sleeved on the valve rod 12, the lower end of the shifting sleeve 1 is inserted into the main valve disc 10, two screw rods 15 are connected to the top surface of the bushing 11, a mounting hole 3 for each screw rod 15 to pass through is formed in the shifting sleeve 1, accommodating grooves 2 for accommodating the upper ends of the screw rods 15 are formed in the two sides of the shifting sleeve 1 respectively, and nuts 14 are mounted on the corresponding screw rods 15 through the accommodating grooves 2. The shifting sleeve 1 and the bush 11 are connected into a whole through the matching of the screw 15 and the nut 14, and the bush 11 can be driven to synchronously move along with the displacement of the shifting sleeve 1, so that the bush 11 is shifted out of the main valve disc 10.
The upper part of the shifting-out sleeve 1 is provided with a hexagonal boss 6, the stress sleeve 16 is a hexagonal sleeve, the stress sleeve 16 is sleeved on the hexagonal boss 6, the stress sleeve 16 and the shifting-out sleeve 1 are connected through a fastening bolt 17, and a knocking plate 18 is fixedly connected on the stress sleeve 16.
As shown in fig. 2, in order to connect the bush 11 and the removing sleeve 1 more tightly, a locking groove 5 is provided on the bottom surface of the removing sleeve 1, and the locking groove 5 is adapted to the boss on the top surface of the bush 11.
Two threaded holes are formed in the top surface of the bushing 11, and the lower end of each screw rod 15 is connected with the threaded holes.
First positioning mechanism includes two first stoppers 9, and two first stoppers 9 are located the both sides of main valve dish 10 respectively, and every first stopper 9 equal fixed mounting is on disassembling platform 8, and it is spacing to main valve dish 10 through two first stoppers 9, main valve dish 10 displacement when avoiding the hammering to strike board 18.
Second positioning mechanism is locating plate 13, and locating plate 13 fixed mounting is on disassembling platform 8, fixes a position the front end of valve rod 12 through locating plate 13, and valve rod 12 displacement when avoiding knocking.
When the valve is used specifically, the shift-out sleeve 1 and the stress sleeve 16 are fixed together, then the shift-out sleeve 1 is sleeved on the valve rod 12, the lower end of the shift-out sleeve 1 is inserted into the main valve disc 10, and the two screws 15 on the bushing 11 penetrate through the shift-out sleeve 1 and are fixed through the nuts 14. The assembled main throttle valve is placed on the disassembling table 8, the main throttle valve is limited by the first positioning mechanism and the second positioning mechanism, and the lining 11 can be gradually moved out of the main valve disc 10 by striking the knocking plate 18 by an iron hammer and the like.
This application has effectively reduced bush 11 through the cooperation of first positioning mechanism, second positioning mechanism and shifting-out mechanism and has shifted out the degree of difficulty, can avoid destructive demolising, greatly reduced maintenance cost.
Of course, the above description is not limited to the above examples, and the technical features of the present invention that are not described in the present application can be implemented by or using the prior art, which is not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (6)
1. Frock is dismantled to steam turbine main valve case, its characterized in that: the device comprises a disassembling platform, wherein a first positioning mechanism for limiting a main valve disc, a second positioning mechanism for limiting a valve rod and a moving-out mechanism for moving a bushing out of the main valve disc are arranged on the disassembling platform; the shifting mechanism comprises a shifting sleeve and a stressed sleeve, a through hole for the valve rod to pass through is formed in the axis of the shifting sleeve, the shifting sleeve is sleeved on the valve rod, the lower end of the shifting sleeve is inserted into the main valve disc, the top surface of the bushing is connected with two screw rods, a mounting hole for each screw rod to pass through is formed in the shifting sleeve, accommodating grooves for accommodating the upper ends of the screw rods are formed in two sides of the shifting sleeve respectively, and the nuts are mounted on the corresponding screw rods through the accommodating grooves; the upper part of the shifting-out sleeve is provided with a hexagonal boss, the stress sleeve is a hexagonal sleeve, the stress sleeve is sleeved on the hexagonal boss, and the stress sleeve is fixedly connected with a knocking plate.
2. The steam turbine main valve core dismounting tool according to claim 1, characterized in that: the stress sleeve and the shift-out sleeve are connected through a fastening bolt.
3. The steam turbine main valve core dismounting tool according to claim 2, characterized in that: the bottom surface of the shifting-out sleeve is provided with a clamping groove which is matched with the lug boss on the top surface of the bushing.
4. The steam turbine main valve core dismounting tool according to claim 1, characterized in that: and two threaded holes are formed in the top surface of the bushing, and the lower end of each screw rod is connected with the threaded hole.
5. The steam turbine main valve core dismounting tool according to claim 1, characterized in that: the first positioning mechanism comprises two first limiting blocks, the two first limiting blocks are respectively located on two sides of the main valve disc, and each first limiting block is fixedly installed on the disassembling platform.
6. The steam turbine main valve core dismounting tool according to claim 5, characterized in that: the second positioning mechanism is a positioning plate which is fixedly arranged on the disassembling platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221831147.1U CN217801494U (en) | 2022-07-15 | 2022-07-15 | Tool for disassembling main valve core of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221831147.1U CN217801494U (en) | 2022-07-15 | 2022-07-15 | Tool for disassembling main valve core of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217801494U true CN217801494U (en) | 2022-11-15 |
Family
ID=83966446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221831147.1U Active CN217801494U (en) | 2022-07-15 | 2022-07-15 | Tool for disassembling main valve core of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217801494U (en) |
-
2022
- 2022-07-15 CN CN202221831147.1U patent/CN217801494U/en active Active
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