CN202673374U - Adjustable elastic Brendan steam sealing - Google Patents
Adjustable elastic Brendan steam sealing Download PDFInfo
- Publication number
- CN202673374U CN202673374U CN201220381468.6U CN201220381468U CN202673374U CN 202673374 U CN202673374 U CN 202673374U CN 201220381468 U CN201220381468 U CN 201220381468U CN 202673374 U CN202673374 U CN 202673374U
- Authority
- CN
- China
- Prior art keywords
- packing
- segmental arc
- steam sealing
- steam
- adjustable elastic
- Prior art date
- 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
Links
- 238000007789 sealing Methods 0.000 title abstract description 12
- 238000012856 packing Methods 0.000 claims description 32
- 238000010276 construction Methods 0.000 abstract description 4
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 210000004907 gland Anatomy 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model relates to an adjustable elastic Brendan steam sealing, which comprises a rotor, a stator, steam sealing arc segments and connecting springs, wherein the steam sealing arc segments are arranged in a ring-shaped space of the stator and the rotor, the connecting springs are arranged between the steam sealing arc segments, strip-shaped lead steam tanks are arranged on the steam inlet outer surfaces of the steam sealing arc segments, and the connecting springs which are arranged between the steam sealing arc segments are curve leaf springs. The adjustable elastic Brendan steam sealing has the advantages of simple structure, convenient use and maintenance and excellent seal effect and the like, and can adjust spring stress according to actual construction requirement of the scene.
Description
Technical field
The utility model relates to a kind of labyrinth gland structure, especially a kind of adjustable elastic Bu Laideng packing for the rotating shaft of steam turbine packing.
Background technique
The Bu Laideng packing is U.S. Bu Laideng house journal product, in the cavity of adjacent packing segmental arc end face spiral cylinder spring is installed in its structure, because this cylindrical spring elasticity coefficient is fixed, can't according to the actual conditions Regulation spring thrust of job site, there be the problems such as use, inconvenient maintenance.
Summary of the invention
The purpose of this utility model provide a kind of can be according to the adjustable elastic Bu Laideng packing of job site situation Regulation spring thrust.
For achieving the above object, the technological scheme that the utility model adjustable elastic Bu Laideng packing adopts is for to be comprised of the packing segmental arc in rotor, stator, stator and the rotor annular space and the linking springs between the packing segmental arc, wherein offer strip at described packing segmental arc admission outer surface and draw the vapour groove, the linking springs between the packing segmental arc is the curved springs sheet.
After adopting said structure, draw the vapour groove and increased the vapor action area because packing segmental arc admission outer surface is offered strip, increase the power of closing.The curved springs chip architecture of installing between the packing segmental arc can vertically be cut the curved springs sheet according to construction condition, adjusts elasticity coefficient, produces the spring stress that corresponds to actual needs.
As further improvement of the utility model, be provided with outstanding straight-tooth in packing segmental arc inner wall surface, the bottom surface of adjacent straight-tooth and straight-tooth are met the vapour face and are provided with the side tooth.Adopt this structure, increased vapor flow length and resistance, effectively reduce steam kinetic energy and reduce displacement, therefore sealing, anti-leak result are good.
The utility model has the advantages that: simple in structure, use, easy to maintenance, good sealing effect can be adjusted spring stress according to on-the-spot actual demand.
Description of drawings
Fig. 1 is the utility model adjustable elastic Bu Laideng packing cross section structure schematic representation.
Fig. 2 is steam turbine the utility model adjustable elastic Bu Laideng packing view when not opening.
Embodiment
Show such as Fig. 1, the utility model adjustable elastic Bu Laideng packing, formed by the packing segmental arc 3 in rotor 1, stator 2, stator and the rotor annular space and the linking springs between the packing segmental arc, offer strip at described packing segmental arc admission outer surface and draw vapour groove 4 (as shown in Figure 2), the linking springs between the packing segmental arc is curved springs sheet 5.Be provided with outstanding straight-tooth 6 in packing segmental arc inner wall surface, the bottom surface of adjacent straight-tooth is met the vapour face with straight-tooth and is respectively equipped with the side tooth 7 parallel with vertical with straight-tooth.
In actual use, because the curved springs chip architecture of installing between the packing segmental arc can vertically be cut the curved springs sheet according to the practice of construction condition at scene, adjust elasticity coefficient, produce the spring stress that corresponds to actual needs.Packing segmental arc admission outer surface is processed with strip and draws the vapour groove and increased the vapor action area, increases the power of closing.Simultaneously packing segmental arc inner wall surface is processed with outstanding straight-tooth and side tooth, has increased vapor flow length and resistance, effectively reduces steam kinetic energy and reduces displacement, and therefore sealing, anti-leak result are good.
The utlity model has simple in structurely, use, easy to maintenance, the characteristics such as good sealing effect can be adjusted spring stress according to on-the-spot practice of construction needs.
Claims (2)
1. adjustable elastic Bu Laideng packing, comprise packing segmental arc in rotor, stator, stator and the rotor annular space and the linking springs between the packing segmental arc, it is characterized in that: offer strip at described packing segmental arc admission outer surface and draw the vapour groove, the linking springs between the packing segmental arc is the curved springs sheet.
2. adjustable elastic Bu Laideng packing according to claim 1, it is characterized in that: packing segmental arc inner wall surface is provided with outstanding straight-tooth, and the bottom surface of adjacent straight-tooth and straight-tooth are met the vapour face and be provided with the side tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220381468.6U CN202673374U (en) | 2012-07-24 | 2012-07-24 | Adjustable elastic Brendan steam sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220381468.6U CN202673374U (en) | 2012-07-24 | 2012-07-24 | Adjustable elastic Brendan steam sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673374U true CN202673374U (en) | 2013-01-16 |
Family
ID=47494284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220381468.6U Expired - Lifetime CN202673374U (en) | 2012-07-24 | 2012-07-24 | Adjustable elastic Brendan steam sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673374U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106089322A (en) * | 2016-08-10 | 2016-11-09 | 西安西热节能技术有限公司 | A kind of magnetic spring brandon steam-glanding |
| WO2017092158A1 (en) * | 2015-12-01 | 2017-06-08 | 秦皇岛鱼麟电力设备有限公司 | Elastic sheet used in servo suspended steam seal band of turbine and steam seal structure thereof |
-
2012
- 2012-07-24 CN CN201220381468.6U patent/CN202673374U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017092158A1 (en) * | 2015-12-01 | 2017-06-08 | 秦皇岛鱼麟电力设备有限公司 | Elastic sheet used in servo suspended steam seal band of turbine and steam seal structure thereof |
| US10385711B2 (en) | 2015-12-01 | 2019-08-20 | Qinhuangdao Yulin Electric Power Equipment Co., Ltd. | Elastic sheet used for turbine follow-up suspended steam seal belt and steam seal structure thereof |
| CN106089322A (en) * | 2016-08-10 | 2016-11-09 | 西安西热节能技术有限公司 | A kind of magnetic spring brandon steam-glanding |
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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: 20130116 |
|
| CX01 | Expiry of patent term | ||
| DD01 | Delivery of document by public notice |
Addressee: Tan Xu Document name: Notice of Expiration and Termination of Patent Right |
|
| DD01 | Delivery of document by public notice |