CN201671661U - High-pressure-bearing brush type sealing part of steam turbine - Google Patents
High-pressure-bearing brush type sealing part of steam turbine Download PDFInfo
- Publication number
- CN201671661U CN201671661U CN2010201815026U CN201020181502U CN201671661U CN 201671661 U CN201671661 U CN 201671661U CN 2010201815026 U CN2010201815026 U CN 2010201815026U CN 201020181502 U CN201020181502 U CN 201020181502U CN 201671661 U CN201671661 U CN 201671661U
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- Prior art keywords
- brush
- bearing
- steam turbine
- high pressure
- steam
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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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- 238000007789 sealing Methods 0.000 title abstract description 14
- 239000000463 material Substances 0.000 claims description 13
- 239000010935 stainless steel Substances 0.000 claims description 12
- 229910001220 stainless steel Inorganic materials 0.000 claims description 12
- 229910045601 alloy Inorganic materials 0.000 claims description 6
- 239000000956 alloy Substances 0.000 claims description 6
- 229910017052 cobalt Inorganic materials 0.000 claims description 3
- 239000010941 cobalt Substances 0.000 claims description 3
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012856 packing Methods 0.000 description 7
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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- Sealing Devices (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model discloses a high-pressure-bearing brush type sealing part of a steam turbine, which comprises a brush type sealing strip and a steam seal ring. The brush type sealing ring is fixed on the lower portion of the steam seal ring in a riveting or socket form. The high-pressure-bearing brush type sealing part is characterized in that a brush wire bundle is formed by a plurality of brush wires side by side, two ends of the brush bundle are respectively provided with a supporting plate and a flow retaining plate, the outer side of the supporting plate is provided with a long baffle, a groove is disposed between the supporting plate and the long baffle, a short baffle is arranged on the outer side of the flow retaining plate, and a groove is arranged between the flow retaining plate and the short baffle. The high-pressure-bearing brush type sealing part resolves problems that a traditional steam seal is poor in sealing effect, easy to be worn and short in service life, and optimizes the brush type sealing front and rear baffles and the thickness and the width of a brush seal, thereby increasing pressure-bearing capacity and freedom of the brush type sealing part. In addition, the brush type sealing part is mainly used for steam turbine shaft seals and blade tip steam seals, and can also be used for sealing two other movement components or a plurality of relative movement components.
Description
Technical field
The utility model relates to brush seal, particularly relates to a kind of brush seal that is used for two or more relative movement part sealings
Background technique
In steam turbine set, the packing wearing and tearing make that the packing radial clearance is excessive, cause steam leakage.For traditional packing,, or, make and the packing wearing and tearing cause potential safety hazards such as vibration increasing because thermal distortion causes unit vibration excessive usually owing in playing the machine process, cross critical speed of rotation.The wearing and tearing of gland sealing gear and axle make axle produce the hot-zone at the friction position, finally cause cambered axle, packing dislocation, labyrinth clearance to increase.Make radial clearance increase more for a long time when packing weares and teares, the leakage of steam will make turbine efficiency and performance significantly reduce, and the life-span is short.Size design is improper when the design brush seal simultaneously, causes difficulty is installed.
The model utility content
Bad, easy to wear in order to solve traditional packing sealing effect, to vibrate greatlyyer, the problem that the life-span is short provides a kind of brush seal of having optimized brush seal front and rear baffle and brush envelope thickness and width dimensions, has increased the bearing capacity and the degrees of freedom of brush seal.
In order to achieve the above object, technical solution adopted in the utility model is:
The high pressure-bearing brush seal of a kind of steam turbine, comprise brush seal bar and steam seal ring, described brush seal bar is fixed on the steam seal ring bottom by riveted joint or inserting mode, it is characterized in that: described brush seal bar comprises long baffle plate, dunnage, the brush tow, aft cover plate and short shutter, described brush tow is made of side by side some brush silks, two ends at the brush tow are respectively arranged with dunnage and aft cover plate, arranged outside in dunnage has long baffle plate, and be provided with groove between dunnage and the long baffle plate, arranged outside at aft cover plate has short shutter, and is provided with groove between aft cover plate and the short shutter.
The high pressure-bearing brush seal of aforesaid a kind of steam turbine is characterized in that: the end of described long baffle plate is a pointed dentation.
The high pressure-bearing brush seal of aforesaid a kind of steam turbine, it is characterized in that: the material of described long baffle plate and short shutter is a kind of among high temperature cobalt base alloy, high-temperature nickel-base alloy, stainless steel 304, stainless steel 304L, stainless steel 316, the stainless steel 316L, the brush silk that described brush tow can be above-mentioned same material combines, and also can be that above-mentioned not same material brush silk combines.
The high pressure-bearing brush seal of aforesaid a kind of steam turbine is characterized in that: the brush seal bar can or be installed many side by side one of steam seal ring bottom installation.
The high pressure-bearing brush seal of aforesaid a kind of steam turbine is characterized in that: the diameter of brush silk is between 0.01mm～2mm, and the brush tow can be combined by the brush silk of diameter of the same race, and the brush tow also can be combined by the brush silk of several different-diameters.
The high pressure-bearing brush seal of aforesaid a kind of steam turbine is characterized in that: the material of described dunnage and aft cover plate is the rubber-like thin plate.
The high pressure-bearing brush seal of aforesaid a kind of steam turbine is characterized in that: the thickness of described brush tow is 0.1mm～20mm,, highly be 2mm～50mm.
The high pressure-bearing brush seal of aforesaid a kind of steam turbine is characterized in that: the thickness of described long baffle plate and short shutter is 0.1mm～20mm, and width is 2mm～30mm.
The high pressure-bearing brush seal of aforesaid a kind of steam turbine is characterized in that: the thickness of described dunnage and aft cover plate is 0.1mm～10mm, and width is 2mm～30mm.
The high pressure-bearing brush seal of aforesaid a kind of steam turbine is characterized in that: the circumferential junction plane of steam seal ring has an inclination angle, and angle and direction are identical with brush silk inclination angle; The circumferential junction plane of brush seal bar also has an inclination angle, and angle and direction are identical with brush silk inclination angle.
The beneficial effects of the utility model are: long baffle plate and fitting surface adjacent end portion are designed to pointed dentation, can protect fitting surface injury-free under the large deformation situation, have improved Security; Between dunnage and long baffle plate, be provided with groove, between aft cover plate and short shutter, be provided with groove.Brush silk elasticity and bearing capacity have been increased; After increasing dunnage and short shutter, can increase the bearing capacity and the life-span of brush seal under given conditions, reduce to leak.Select by size design and the material of optimizing each parts simultaneously, the performance of brush seal and life-span can effectively improve.
Description of drawings
Fig. 1 is that the utility model brush seal cooperates schematic representation with steam seal ring;
Fig. 2 is the structural representation of the utility model brush seal;
Fig. 3 is the circumferential junction plane schematic representation of the utility model steam seal ring;
Fig. 4 is the circumferential junction plane schematic representation of the utility model brush seal bar.
Embodiment
The utility model will be further described below in conjunction with accompanying drawing.
As shown in the figure, the high pressure-bearing brush seal of a kind of steam turbine, comprise brush seal bar 8 and steam seal ring 9, described brush seal bar 8 is fixed on steam seal ring bottom 9 by riveted joint or inserting mode, and brush seal bar 8 can or be installed many side by side one of steam seal ring 9 bottoms installation.Described brush seal bar 8 comprises long baffle plate 1, dunnage 2, brush tow 3, aft cover plate 4 and short shutter 5, two ends at brush tow 3 are respectively arranged with dunnage 2 and aft cover plate 4, arranged outside in dunnage 2 has long baffle plate 1, and be provided with groove 6 between dunnage 2 and the long baffle plate 1, arranged outside at aft cover plate 4 has short shutter 5, and is provided with groove 7 between aft cover plate 4 and the short shutter 5.In order to protect fitting surface injury-free, the end of long baffle plate 1 is a pointed dentation.Long baffle plate 1 and short shutter 2 can be by punching press, shearing, line cutting, electrical spark, roll a kind of mode curved, in bending is processed into arc or annular.The material of long baffle plate 1 and short shutter 5 is a kind of among high temperature cobalt base alloy, high-temperature nickel-base alloy, stainless steel 304, stainless steel 304L, stainless steel 316, the stainless steel 316L, the brush silk that described brush tow 3 can be above-mentioned same material combines, and also can be that above-mentioned not same material brush silk combines.The material of dunnage 2 and aft cover plate 4 is the rubber-like thin plate.
For the ease of is installed the working life of improving each parts.Each Component Design is of a size of, the thickness of long baffle plate 1 and short shutter 5 is 0.1mm～20mm, width is 2mm～30mm, dunnage 2 is 0.1mm～10mm with the thickness of aft cover plate 4, and width is 2mm～30mm, and the thickness of brush tow 3 is 0.1mm～20mm, highly be 2mm～50mm, brush filament diameter in the brush tow 3 is between 0.01mm～2mm, and brush tow 3 can be combined by the brush silk of diameter of the same race, and brush tow 3 also can be combined by the brush silk of several different-diameters.The circumferential junction plane of steam seal ring 9 has an inclination angle simultaneously, and angle and direction are identical with brush silk inclination angle; The circumferential junction plane of brush seal bar 8 also has an inclination angle, and angle and direction are identical with brush silk inclination angle.
More than show and described basic principle of the present utility model and major character and advantage of the present utility model.The technician of the industry should understand; the utility model is not restricted to the described embodiments; that describes in the foregoing description and the specification just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (10)
1. high pressure-bearing brush seal of steam turbine, comprise brush seal bar and steam seal ring, described brush seal bar is fixed on the steam seal ring bottom by riveted joint or inserting mode, it is characterized in that: described brush seal bar comprises long baffle plate, dunnage, the brush tow, aft cover plate and short shutter, described brush tow is made of side by side some brush silks, two ends at the brush tow are respectively arranged with dunnage and aft cover plate, arranged outside in dunnage has long baffle plate, and be provided with groove between dunnage and the long baffle plate, arranged outside at aft cover plate has short shutter, and is provided with groove between aft cover plate and the short shutter.
2. the high pressure-bearing brush seal of a kind of steam turbine according to claim 1 is characterized in that: the end of described long baffle plate is a pointed dentation.
3. the high pressure-bearing brush seal of a kind of steam turbine according to claim 1, it is characterized in that: the material of described long baffle plate and short shutter is a kind of among high temperature cobalt base alloy, high-temperature nickel-base alloy, stainless steel 304, stainless steel 304L, stainless steel 316, the stainless steel 316L, the brush silk that described brush tow can be above-mentioned same material combines, and also can be that above-mentioned not same material brush silk combines.
4. the high pressure-bearing brush seal of a kind of steam turbine according to claim 1 is characterized in that: the brush seal bar can or be installed many side by side one of steam seal ring bottom installation.
5. the high pressure-bearing brush seal of a kind of steam turbine according to claim 1, it is characterized in that: the diameter of brush silk is between 0.01mm～2mm, the brush tow can be combined by the brush silk of diameter of the same race, and the brush tow also can be combined by the brush silk of several different-diameters.
6. the high pressure-bearing brush seal of a kind of steam turbine according to claim 1 is characterized in that: the material of described dunnage and aft cover plate is the rubber-like thin plate.
7. the high pressure-bearing brush seal of a kind of steam turbine according to claim 1 is characterized in that: the thickness of described brush tow is 0.1mm～20mm,, highly be 2mm～50mm.
8. the high pressure-bearing brush seal of a kind of steam turbine according to claim 1 is characterized in that: the thickness of described long baffle plate and short shutter is 0.1mm～20mm, and width is 2mm～30mm.
9. the high pressure-bearing brush seal of a kind of steam turbine according to claim 1 is characterized in that: the thickness of described dunnage and aft cover plate is 0.1mm～10mm, and width is 2mm～30mm.
10. the high pressure-bearing brush seal of a kind of steam turbine according to claim 1 is characterized in that: the circumferential junction plane of steam seal ring has an inclination angle, and angle and direction are identical with brush silk inclination angle; The circumferential junction plane of brush seal bar also has an inclination angle, and angle and direction are identical with brush silk inclination angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201815026U CN201671661U (en) | 2010-05-06 | 2010-05-06 | High-pressure-bearing brush type sealing part of steam turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201815026U CN201671661U (en) | 2010-05-06 | 2010-05-06 | High-pressure-bearing brush type sealing part of steam turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201671661U true CN201671661U (en) | 2010-12-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201815026U Expired - Lifetime CN201671661U (en) | 2010-05-06 | 2010-05-06 | High-pressure-bearing brush type sealing part of steam turbine |
Country Status (1)
| Country | Link |
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| CN (1) | CN201671661U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352922A (en) * | 2011-09-29 | 2012-02-15 | 江苏透平密封高科技有限公司 | Self-centering floating brush type sealing tile |
| CN103225519A (en) * | 2013-04-24 | 2013-07-31 | 石伟伟 | Self-adjustment blade type vapor seal |
| CN103406739A (en) * | 2013-08-20 | 2013-11-27 | 田波 | Novel brush type seal manufacturing method |
| WO2014014426A2 (en) | 2012-06-28 | 2014-01-23 | Sdm Siradişi Arge Ve Mühendi̇sli̇k Sanayi̇ Ti̇caret Li̇mi̇ted Şi̇rketi̇ | Brush seal for high pressure applications |
| CN104454030A (en) * | 2014-11-14 | 2015-03-25 | 中国航空动力机械研究所 | High-pressure-resisting low-hysteresis brush type sealing device |
| CN105275505A (en) * | 2014-06-09 | 2016-01-27 | 斗山重工业株式会社 | Brusch seal assembly |
| CN105562885A (en) * | 2016-02-19 | 2016-05-11 | 江苏拓平密封科技有限公司 | Brush type sealing welding method based on cobalt powder seam filling and 3D printing technology |
-
2010
- 2010-05-06 CN CN2010201815026U patent/CN201671661U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102352922A (en) * | 2011-09-29 | 2012-02-15 | 江苏透平密封高科技有限公司 | Self-centering floating brush type sealing tile |
| WO2014014426A2 (en) | 2012-06-28 | 2014-01-23 | Sdm Siradişi Arge Ve Mühendi̇sli̇k Sanayi̇ Ti̇caret Li̇mi̇ted Şi̇rketi̇ | Brush seal for high pressure applications |
| CN103225519A (en) * | 2013-04-24 | 2013-07-31 | 石伟伟 | Self-adjustment blade type vapor seal |
| CN103406739A (en) * | 2013-08-20 | 2013-11-27 | 田波 | Novel brush type seal manufacturing method |
| CN105275505A (en) * | 2014-06-09 | 2016-01-27 | 斗山重工业株式会社 | Brusch seal assembly |
| CN104454030A (en) * | 2014-11-14 | 2015-03-25 | 中国航空动力机械研究所 | High-pressure-resisting low-hysteresis brush type sealing device |
| CN105562885A (en) * | 2016-02-19 | 2016-05-11 | 江苏拓平密封科技有限公司 | Brush type sealing welding method based on cobalt powder seam filling and 3D printing technology |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU TURBINE SEAL HIGH-TECHNOLOGY CO., LTD. Free format text: FORMER NAME: JIANGSU TURBINE SEAL HIGH-TECHNOLOGY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 210046, No. 108 East, Gan Jia, Qixia District, Jiangsu, Nanjing Patentee after: Jiangsu Turbine Seal High-Technology Co., Ltd. Address before: 210046, No. 108 East, Gan Jia, Qixia District, Jiangsu, Nanjing Patentee before: Jiangsu Turbine Seal High-Technology Co., Ltd. |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-pressure-bearing brush type sealing part of steam turbine Effective date of registration: 20141120 Granted publication date: 20101215 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch Pledgor: Jiangsu Turbine Seal High-Technology Co., Ltd. Registration number: 2014320000016 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tian Bo Inventor after: Zuo Fei Inventor before: Tian Bo |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: TIAN BO TO: TIAN BO ZUO FEI |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20170622 Granted publication date: 20101215 Pledgee: Bank of Beijing, Limited by Share Ltd, Nanjing branch Pledgor: Jiangsu Turbine Seal High-Technology Co., Ltd. Registration number: 2014320000016 |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170721 Address after: 116600 No. 723, block B, Taihua Hotel, Dalian Free Trade Zone, Liaoning, Dalian Patentee after: Dalian Free Trade Zone Huahong Industrial Technology Co., Ltd. Address before: 210046, No. 108 East, Gan Jia, Qixia District, Jiangsu, Nanjing Patentee before: Jiangsu Turbine Seal High-Technology Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101215 |