CN202280479U - Lamination-type seal device of steam turbine high-pressure gas injection insertion pipe - Google Patents
Lamination-type seal device of steam turbine high-pressure gas injection insertion pipe Download PDFInfo
- Publication number
- CN202280479U CN202280479U CN201120416526XU CN201120416526U CN202280479U CN 202280479 U CN202280479 U CN 202280479U CN 201120416526X U CN201120416526X U CN 201120416526XU CN 201120416526 U CN201120416526 U CN 201120416526U CN 202280479 U CN202280479 U CN 202280479U
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- China
- Prior art keywords
- seal
- insertion pipe
- turbine high
- pressure
- gas injection
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses a lamination-type seal device of a steam turbine high-pressure gas injection insertion pipe, and relates to a seal device, aiming to solve the problems that the seal structure of the existing steam turbine high-pressure gas injection insertion pipe has poor seal property, great gas leakage and low gas injection efficiency. The lamination-type seal device provided by the utility model comprises a compression ring, a plurality of outer seal rings and a plurality of inner seal rings, wherein the outer seal rings and the inner seal rings are arranged at intervals, and are sleeved on the outer side of the gas injection insertion pipe; a radial clearance is reserved between the inner seal rings and an inner cylinder steam injection annular groove; and a radial clearance is reserved between the outer seal rings and the steam injection insertion pipe. The lamination-type seal device of the steam turbine high-pressure gas injection insertion pipe provided by the utility model has a good seal effect and less gas leakage, and is used for the seal of the steam turbine high-pressure gas injection insertion pipe.
Description
Technical field
The utility model relates to a kind of turbine high-pressure inlet sleeve seal arrangement, particularly relates to the stacked seal arrangement of a kind of turbine high-pressure inlet sleeve.
Background technique
At present, mostly the existing turbine high-pressure inlet sleeve of China is the piston ring seal structure, or bell bell-type sealing configuration, and the problem that above-mentioned sealing configuration exists is: poor sealing performance, and air leakage is big, and admission efficient is low, and energy consumption is big.
The model utility content
The purpose of the utility model is to provide a kind of turbine high-pressure inlet sleeve stacked seal arrangement, to solve big, the inefficient problem of admission of sealing configuration poor sealing performance, air leakage of existing turbine high-pressure inlet sleeve.
The technological scheme that the utility model adopts to achieve these goals is: the stacked seal arrangement of the described turbine high-pressure inlet sleeve of the utility model comprises pressure ring, a plurality of outer seal ring and a plurality of inner seal ring; A plurality of inner seal rings and a plurality of outer seal ring all are sleeved on the outside of inlet sleeve; A plurality of outer seal rings and a plurality of inner seal ring are provided with at interval; Leave radial clearance between a plurality of inner seal rings and the inner casing admission annular groove, leave radial clearance between a plurality of outer seal rings and the inlet sleeve, pressure ring is sleeved on the outside of inlet sleeve; A plurality of inner seal rings and a plurality of outer seal ring are through the pressure ring axial limiting, and pressure ring is fixedly connected with the upper-end surface of high-pressure inner cylinder.
The beneficial effect of the utility model is: the utlity model has rational in infrastructure, good sealing effect, can effectively reduce the air leakage of high-pressure admission intubate, improved admission efficient.
The outstanding advantage of the utility model is: the stacked seal arrangement of turbine high-pressure inlet sleeve is made up of a plurality of outer seal rings and a plurality of inner seal ring at interval; Inner seal ring be assemblied in free state the time and inlet sleeve match; Leave radial clearance between outer seal ring and inlet sleeve; Outer seal ring and inner seal ring lap seal are to reveal the radial force and the axial force that rely on pressure reduction to produce during work between the axial rings that reduces steam; Inner seal ring and inlet sleeve, outer seal ring and inner casing admission annular groove end face are adjacent to; Inner seal ring and outer seal ring form sealing surface respectively, also form sealing surface between the end face of inner seal ring and outer seal ring, reach the better seal effect.
Description of drawings
Fig. 1 is the plan view of the utility model.
Embodiment
Embodiment one: as shown in Figure 1; The stacked seal arrangement of the described turbine high-pressure inlet sleeve of this mode of execution comprises pressure ring 6, a plurality of outer seal ring 4 and a plurality of inner seal ring 5; A plurality of inner seal rings 5 and a plurality of outer seal rings 4 all are sleeved on the outside of inlet sleeve 3, and a plurality of outer seal rings 4 are provided with a plurality of inner seal rings 5 at interval, leave radial clearance between a plurality of inner seal rings 5 and the inner casing admission annular groove 8; Leave radial clearance between a plurality of outer seal rings 4 and the inlet sleeve 3; Pressure ring 6 is sleeved on the outside of inlet sleeve 3, and a plurality of inner seal rings 5 pass through pressure ring 6 axial limitings with a plurality of outer seal rings 4, and pressure ring 6 is fixedly connected with the upper-end surface of high-pressure inner cylinder 2.
Embodiment two: as shown in Figure 1, adopt screw 7 to be fixedly connected between the stacked seal arrangement of the said turbine high-pressure inlet sleeve of this mode of execution, pressure ring 6 and high-pressure inner cylinder 2.Other composition and annexation are identical with embodiment one.
Claims (2)
1. the stacked seal arrangement of turbine high-pressure inlet sleeve; It is characterized in that: the stacked seal arrangement of said turbine high-pressure inlet sleeve comprises pressure ring (6), a plurality of outer seal ring (4) and a plurality of inner seal ring (5); A plurality of inner seal rings (5) and a plurality of outer seal ring (4) all are sleeved on the outside of inlet sleeve (3); A plurality of outer seal rings (4) are provided with a plurality of inner seal rings (5) at interval; Leave radial clearance between a plurality of inner seal rings (5) and the inner casing admission annular groove (8), leave radial clearance between a plurality of outer seal rings (4) and the inlet sleeve (3), pressure ring (6) is sleeved on the outside of inlet sleeve (3); A plurality of inner seal rings (5) and a plurality of outer seal ring (4) are through pressure ring (6) axial limiting, and pressure ring (6) is fixedly connected with the upper-end surface of high-pressure inner cylinder (2).
2. the stacked seal arrangement of turbine high-pressure inlet sleeve according to claim 1 is characterized in that: be fixedly connected through a plurality of screws (7) between the upper-end surface of said pressure ring (6) and high-pressure inner cylinder (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120416526XU CN202280479U (en) | 2011-10-27 | 2011-10-27 | Lamination-type seal device of steam turbine high-pressure gas injection insertion pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120416526XU CN202280479U (en) | 2011-10-27 | 2011-10-27 | Lamination-type seal device of steam turbine high-pressure gas injection insertion pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280479U true CN202280479U (en) | 2012-06-20 |
Family
ID=46226652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120416526XU Expired - Lifetime CN202280479U (en) | 2011-10-27 | 2011-10-27 | Lamination-type seal device of steam turbine high-pressure gas injection insertion pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280479U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105604613A (en) * | 2016-02-26 | 2016-05-25 | 哈尔滨汽轮机厂有限责任公司 | Novel elastic seal structure for steam turbine insertion tube |
| CN107787422A (en) * | 2015-05-01 | 2018-03-09 | 圣戈班性能塑料L+S有限公司 | Sealing ring |
| CN108757053A (en) * | 2018-05-29 | 2018-11-06 | 黄文中 | A kind of high pressure, in be pressed into the close device of steam pipe |
| CN110966050A (en) * | 2019-12-20 | 2020-04-07 | 东方电气集团东方汽轮机有限公司 | Steam turbine steam inlet insertion pipe sealing connection structure |
| CN112901285A (en) * | 2021-01-27 | 2021-06-04 | 中国电建集团四川工程有限公司 | Sealing device for sealing high-pressure turbine and dismantling method |
-
2011
- 2011-10-27 CN CN201120416526XU patent/CN202280479U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107787422A (en) * | 2015-05-01 | 2018-03-09 | 圣戈班性能塑料L+S有限公司 | Sealing ring |
| CN107787422B (en) * | 2015-05-01 | 2020-09-22 | 圣戈班性能塑料L+S有限公司 | Sealing ring |
| CN105604613A (en) * | 2016-02-26 | 2016-05-25 | 哈尔滨汽轮机厂有限责任公司 | Novel elastic seal structure for steam turbine insertion tube |
| CN108757053A (en) * | 2018-05-29 | 2018-11-06 | 黄文中 | A kind of high pressure, in be pressed into the close device of steam pipe |
| CN110966050A (en) * | 2019-12-20 | 2020-04-07 | 东方电气集团东方汽轮机有限公司 | Steam turbine steam inlet insertion pipe sealing connection structure |
| CN112901285A (en) * | 2021-01-27 | 2021-06-04 | 中国电建集团四川工程有限公司 | Sealing device for sealing high-pressure turbine and dismantling method |
| CN112901285B (en) * | 2021-01-27 | 2023-03-03 | 中国电建集团四川工程有限公司 | Sealing device for sealing high-pressure turbine and dismantling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120620 |
|
| CX01 | Expiry of patent term |