CN220059681U - Steam seal improvement device for improving thermal efficiency of steam turbine - Google Patents
Steam seal improvement device for improving thermal efficiency of steam turbine Download PDFInfo
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- CN220059681U CN220059681U CN202321543693.XU CN202321543693U CN220059681U CN 220059681 U CN220059681 U CN 220059681U CN 202321543693 U CN202321543693 U CN 202321543693U CN 220059681 U CN220059681 U CN 220059681U
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- ring body
- steam seal
- steam turbine
- fixedly connected
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 210000004907 gland Anatomy 0.000 abstract description 8
- 238000007789 sealing Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses a steam seal improvement device for improving the thermal efficiency of a steam turbine, which belongs to the technical field of steam turbines and comprises a steam seal ring body and a connecting ring body sleeved on the outer side of the steam seal ring body and connected with a stator of the steam turbine, wherein the inner side wall of the steam seal ring body is fixedly connected with steam seal teeth arranged on a rotor of the steam turbine, two symmetrically arranged elastic buckling mechanisms are arranged in the side wall of the connecting ring body, two clamping grooves which are respectively and symmetrically arranged with the two elastic buckling mechanisms one by one are arranged on the two sides of the steam seal ring body, and one ends of the two elastic buckling mechanisms are respectively inserted into the two clamping grooves. According to the utility model, by arranging the elastic buckle mechanism, the gland sealing ring body and the connecting ring body can be separated by pushing the push block, and only one part is needed to be replaced during maintenance, so that the cost is saved, the gland sealing effect of the device in the steam turbine is not influenced, and the thermal efficiency is ensured.
Description
Technical Field
The utility model relates to the technical field of steam turbines, in particular to a steam seal improvement device for improving the thermal efficiency of a steam turbine.
Background
The steam turbine is also called a steam turbine engine, is a rotary steam power device, high-temperature and high-pressure steam passes through a fixed nozzle to become accelerated airflow and then is sprayed onto blades, so that a rotor provided with a blade row rotates and simultaneously externally applies work, the steam turbine is main equipment of a modern thermal power plant, and is also used in metallurgical industry, chemical industry and ship power devices, the steam turbine is a rotary machine which takes steam as power and converts heat energy of the steam into mechanical work, and is the most widely applied prime mover in the modern thermal power plant.
In a steam seal (patent number: CN 209444377U) for a steam turbine, the device is used between a rotor and a stator of the steam turbine and comprises a steam seal body and a connector which is formed at the top of the steam seal body and is connected with the stator; the novel steam seal device comprises a rotor, a steam seal body, a first steam seal tooth, a second steam seal tooth, a high-pressure steam and a high-pressure steam, and is characterized by further comprising the first steam seal tooth arranged on the rotor and the second steam seal tooth arranged at the root of the steam seal body, wherein the second steam seal tooth comprises a wall-type tooth arranged on the side surface of the root of the steam seal body and a high-low-type tooth arranged on the bottom surface of the root of the steam seal body, a plurality of first steam circulation chambers are enclosed between the wall-type tooth and the first steam seal tooth, a plurality of second steam circulation chambers are enclosed between the high-low-level tooth and the first steam seal tooth, the high-pressure steam sequentially passes through the first steam circulation chambers and the second steam circulation chambers to form vortex so as to reduce pressure and leakage, the device can effectively reduce air leakage and improve the efficiency of the steam turbine, however, the steam seal body and a connecting body of the device cannot be disassembled and assembled, and once one part is damaged due to abrasion, the whole steam seal piece needs to be replaced, and the maintenance cost is too high.
Disclosure of Invention
The utility model aims to provide a steam seal improvement device for improving the thermal efficiency of a steam turbine, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an improve steam seal of steam turbine thermal efficiency improves device for between rotor and the stator of steam turbine, including gland seal circle body and cover locate the gland seal circle body outside and with the connection circle body that the stator of steam turbine is connected, the inside wall fixedly connected with of gland seal circle body locates the gland seal tooth on the steam turbine rotor, be equipped with the elasticity buckle mechanism that two symmetries set up in the lateral wall of connection circle body, two draw-in grooves that set up with two elasticity buckle mechanism one-to-one respectively have been seted up to the both sides of gland seal circle body, and two elasticity buckle mechanism's one end inserts respectively and locates in two draw-in grooves.
As still further aspects of the utility model: the elastic buckling mechanism comprises a mounting cavity formed in the side wall of the connecting ring body, a loop rod is fixedly connected to the inner bottom wall of the mounting cavity, a sleeve clamping rod is sleeved at one end of the loop rod, one end of the sleeve clamping rod is inserted into the clamping groove in a penetrating mode and is located in the sleeve clamping rod, a sliding block is fixedly connected to one end of the loop rod, a compression spring is fixedly connected between the sliding block and the sleeve clamping rod, a connecting rod is fixedly connected to one side of the sleeve clamping rod, a sliding port communicated with the mounting cavity is formed in the front side of the connecting ring body, and one end of the connecting rod penetrates through the sliding port.
As still further aspects of the utility model: the inner wall of the connecting ring body is provided with a sliding hole communicated with the mounting cavity, and the sleeve clamping rod penetrates through the sliding hole.
As still further aspects of the utility model: wherein, be located the external side of the tie rod one end fixedly connected with ejector pad.
As still further aspects of the utility model: four equally spaced positioning grooves are formed in the side wall of the front end of the connecting ring body in a surrounding mode.
As still further aspects of the utility model: the steam seal ring comprises a steam seal ring body, wherein the outer side wall of the steam seal ring body is fixedly connected with four positioning blocks which are arranged in one-to-one correspondence with four positioning grooves.
Compared with the prior art, the utility model has the beneficial effects that:
1. this improve vapor seal of steam turbine thermal efficiency improves device through setting up elasticity buckle mechanism, when needs split vapor seal circle body and connector ring body, only need promote the ejector pad displacement, drive the sleeve draw-in lever fixed with the connecting rod and to keeping away from the direction displacement of draw-in groove, at this moment, compression spring receives the extrusion of slider to produce elasticity, until after sleeve draw-in lever and draw-in groove are completely separated, at this moment, can separate vapor seal circle body and connector ring body, during the maintenance, only need change one of them part can, save the cost, and do not influence the vapor seal effect of this device in the steam turbine, ensure thermal efficiency.
2. This improve steam seal of steam turbine thermal efficiency improves device through setting up constant head tank and locating piece, locates the locating piece card in the constant head tank, but increase connector ring body axial pivoted restriction power makes steam seal ring body and connector ring body connect firm, and is convenient for look for the location to draw-in groove and sleeve card pole.
Drawings
FIG. 1 is a schematic elevational view of the present utility model;
FIG. 2 is a schematic side sectional view of the present utility model;
FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;
FIG. 4 is a schematic diagram of a front view of a vapor seal ring body according to the present utility model;
fig. 5 is a schematic front view of the connecting ring body according to the present utility model.
The correspondence between the reference numerals and the component names in the drawings is as follows:
1. a gland sealing ring body; 2. a connecting ring body; 3. steam seal teeth; 4. a clamping groove; 5. a mounting cavity; 6. a loop bar; 7. a sleeve clamping rod; 8. a slide block; 9. a compression spring; 10. a connecting rod; 11. a sliding port; 12. a pushing block; 13. a positioning groove; 14. and (5) positioning blocks.
Detailed Description
Referring to fig. 1-5, in the embodiment of the present utility model, a steam seal improving device for improving thermal efficiency of a steam turbine is provided, which is used between a rotor and a stator of the steam turbine, and comprises a steam seal ring body 1 and a connecting ring body 2 sleeved on the outer side of the steam seal ring body 1 and connected with the stator of the steam turbine, wherein the inner side wall of the steam seal ring body 1 is fixedly connected with a steam seal tooth 3 arranged on the rotor of the steam turbine, and the steam seal ring body 1, the connecting ring body 2 and the steam seal tooth 3 are all of the prior art, so that the thermal efficiency of the steam turbine is improved without excessive explanation, two symmetrically arranged elastic fastening mechanisms are arranged in the side wall of the connecting ring body 2, two clamping grooves 4 which are respectively arranged with the two elastic fastening mechanisms in a one-to-one symmetry are provided on two sides of the steam seal ring body 1, and one ends of the two elastic fastening mechanisms are respectively inserted into the two clamping grooves 4.
As shown in fig. 3: the elastic clamping mechanism comprises a mounting cavity 5 formed in the side wall of a connecting ring body 2, a sleeve rod 6 is fixedly connected to the inner bottom wall of the mounting cavity 5, a sleeve clamping rod 7 is sleeved at one end of the sleeve rod 6, one end of the sleeve clamping rod 7 penetrates through and is arranged in a clamping groove 4, one end of the sleeve rod 6 in the sleeve clamping rod 7 is fixedly connected with a sliding block 8, a compression spring 9 is fixedly connected between the sliding block 8 and the sleeve clamping rod 7, a connecting rod 10 is fixedly connected to one side of the sleeve clamping rod 7, a sliding port 11 communicated with the mounting cavity 5 is formed in the front side of the connecting ring body 2, one end of the connecting rod 10 penetrates through the sliding port 11, only a push block 12 is required to be pushed to move when the steam sealing ring body 1 and the connecting ring body 2 are required to be split, the sleeve clamping rod 7 fixed with the connecting rod 10 is driven to move away from the clamping groove 4, at the moment, the compression spring 9 is extruded by the sliding block 8 to generate elastic force until the sleeve clamping rod 7 is completely separated from the clamping groove 4, and the sealing ring body 1 and the connecting ring body 2 can be separated from the connecting ring body 2 at the moment, and only one part needs to be replaced when maintenance is needed, and the thermal sealing efficiency of the steam sealing device is not influenced.
As shown in fig. 3: the sliding hole that sets up with installation cavity 5 intercommunication is seted up to the inner wall of the connecting ring body 2, and sleeve draw-in bar 7 passes this sliding hole setting, the sleeve draw-in bar 7 displacement of being convenient for.
As shown in fig. 3: one end of the connecting rod 10 positioned outside the connecting ring body 2 is fixedly connected with a push block 12, so that the connecting rod 10 is pushed to displace conveniently.
As shown in fig. 1, 4 and 5: four equally spaced locating grooves 13 which are arranged in a surrounding mode are formed in the side wall of the front end of the connecting ring body 2, four locating blocks 14 which are arranged in one-to-one correspondence with the four locating grooves 13 are fixedly connected to the outer side wall of the steam seal ring body 1, limiting force for axial rotation of the connecting ring body 2 is increased, connection is firm, and locating of the clamping grooves 4 and the sleeve clamping rods 7 is convenient to find.
Working principle: when the steam turbine works, the steam seal piece is worn and needs to be overhauled, the push block 12 is only required to be pushed to move, the sleeve clamping rod 7 fixed with the connecting rod 10 is driven to move in the direction away from the clamping groove 4, at the moment, the compression spring 9 is extruded by the sliding block 8 to generate elastic force until after the sleeve clamping rod 7 is completely separated from the clamping groove 4, at the moment, the steam seal ring body 1 and the connecting ring body 2 can be separated, only one part is required to be replaced during maintenance, the cost is saved, the steam seal effect of the device in the steam turbine is not influenced, the thermal efficiency is ensured, the positioning block 14 is clamped in the positioning groove 13, the limiting force of the axial rotation of the connecting ring body 2 is increased, the connecting ring body 2 and the steam seal ring body 1 are firmly connected, and the clamping groove 4 and the sleeve clamping rod 7 are convenient to find and position.
The foregoing description is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical solution of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.
Claims (6)
1. The utility model provides an improve steam seal improvement device of steam turbine thermal efficiency for between rotor and the stator of steam turbine, including steam seal circle body (1) and cover locate steam seal circle body (1) outside and with the connection circle body (2) that the stator of steam turbine is connected, a serial communication port, steam seal circle body (1) inside wall fixedly connected with locates steam seal tooth (3) on the steam turbine rotor, be equipped with the elasticity buckle mechanism that two symmetries set up in the lateral wall of connection circle body (2), draw-in groove (4) that two elasticity buckle mechanism one-to-one set up respectively have been seted up to the both sides of steam seal circle body (1), and in two draw-in grooves (4) are inserted respectively to the one end of two elasticity buckle mechanisms.
2. The steam seal improvement device for improving the thermal efficiency of a steam turbine according to claim 1, wherein the elastic clamping mechanism comprises a mounting cavity (5) formed in the side wall of a connecting ring body (2), a sleeve rod (6) is fixedly connected to the inner bottom wall of the mounting cavity (5), a sleeve clamping rod (7) is sleeved at one end of the sleeve rod (6), one end of the sleeve clamping rod (7) is inserted into a clamping groove (4) in a penetrating mode, a sliding block (8) is fixedly connected to one end of the sleeve rod (6) and located in the sleeve clamping rod (7), a compression spring (9) is fixedly connected between the sliding block (8) and the sleeve clamping rod (7), a connecting rod (10) is fixedly connected to one side of the sleeve clamping rod (7), a sliding port (11) communicated with the mounting cavity (5) is formed in the front side of the connecting ring body (2), and one end of the connecting rod (10) penetrates through the sliding port (11).
3. The steam seal improvement device for improving the thermal efficiency of the steam turbine according to claim 2, wherein a sliding hole communicated with the installation cavity (5) is formed in the inner wall of the connecting ring body (2), and the sleeve clamping rod (7) penetrates through the sliding hole.
4. The steam seal improvement device for improving the thermal efficiency of a steam turbine according to claim 2, wherein a push block (12) is fixedly connected to one end of the connecting rod (10) located on the outer side of the connecting ring body (2).
5. The steam seal improvement device for improving the thermal efficiency of the steam turbine according to claim 1, wherein four equally-spaced positioning grooves (13) are formed in the side wall of the front end of the connecting ring body (2).
6. The steam seal improvement device for improving the heat efficiency of the steam turbine according to claim 5, wherein four positioning blocks (14) which are arranged in one-to-one correspondence with the four positioning grooves (13) are fixedly connected to the outer side wall of the steam seal ring body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321543693.XU CN220059681U (en) | 2023-06-16 | 2023-06-16 | Steam seal improvement device for improving thermal efficiency of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321543693.XU CN220059681U (en) | 2023-06-16 | 2023-06-16 | Steam seal improvement device for improving thermal efficiency of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220059681U true CN220059681U (en) | 2023-11-21 |
Family
ID=88763458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321543693.XU Active CN220059681U (en) | 2023-06-16 | 2023-06-16 | Steam seal improvement device for improving thermal efficiency of steam turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220059681U (en) |
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2023
- 2023-06-16 CN CN202321543693.XU patent/CN220059681U/en active Active
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