CN100451329C - Seal of principal axis of water turbine in type of stay column - Google Patents
Seal of principal axis of water turbine in type of stay column Download PDFInfo
- Publication number
- CN100451329C CN100451329C CNB2007100583749A CN200710058374A CN100451329C CN 100451329 C CN100451329 C CN 100451329C CN B2007100583749 A CNB2007100583749 A CN B2007100583749A CN 200710058374 A CN200710058374 A CN 200710058374A CN 100451329 C CN100451329 C CN 100451329C
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- China
- Prior art keywords
- sealing
- fixed
- sealing plate
- seal
- swinging mounting
- Prior art date
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Sealing Devices (AREA)
Abstract
This invention relates to sealing of a primary shaft of a tubular turbine characterizing that working sealing includes two sets of panel sealing, clean pressure water is penetrated between the two sets of panel sealing, in which the first one is close to the lower reaches including a rotating bracket fixed on the flange of the main shaft and a fixed bracket fixed on the inducing prick, which are matched in clearance, sealing plate 1 is jacketed on the rotating bracket and placed between the rotating bracket and the fixed bracket, cover 2 is jacketed on the rotating bracket adjacent to the sealing board, both the two are fixed at the fixed bracket, the second set of sealing is close to the upper stream, cover 3 fixes sealing plate 2 on the rotating bracket, which leans against sealing plate 1 in clearance.
Description
Technical field
The present invention relates to a kind of sealing of tubular turbine, particularly a kind of seal of principal axis of water turbine in type of stay column.
Background technique
The structure that seal of principal axis of water turbine in type of stay column is relatively more commonly used is a packing seal at present.The conventional construction of packing seal sees also Fig. 2, mainly comprises: flow deflecting cone, pressure pad water tank, adjustment screw and spring, packing box, packing, lining, maintenance sealing, gland etc.Its lining will be fixed on the main shaft with stainless steel material, between lining and packing box packing is housed, and the key of this kind structural design is the stage clip of adjusting on the pressure pad water tank on the screw, and after the packing wearing and tearing, stage clip relies on its tension force that the pressure pad water tank is compressed packing.If it is inaccurate that spring force calculates, can not compress packing, influence sealing effect.The packing material price of this sealing is higher.In addition, complexity is installed, bothers when changing packing.
Summary of the invention
The present invention can improve sealing effect for the technical problem that exists in the solution known technology provides a kind of, reduces the sealing material cost, simplifies the seal of principal axis of water turbine in type of stay column of installing.
The technological scheme that the present invention takes for the technical problem that exists in the solution known technology is: a kind of seal of principal axis of water turbine in type of stay column, working seal comprises the dull and stereotyped sealing of twice, between the dull and stereotyped sealing of twice, feed cleaning pressure water, the dull and stereotyped sealing in first road is near the downstream side, comprise the swinging mounting that is fixed on the spindle flange, be fixed in the fixed support on the flow deflecting cone, swinging mounting and fixed support Spielpassung, suit sealing plate I on swinging mounting, sealing plate I is between swinging mounting and fixed support, gland II is adjacent with sealing plate I to be sleeved on the swinging mounting, and the two is simultaneously affixed with fixed support; The dull and stereotyped sealing in second road is near upstream side, and gland III is fixed on sealing plate II on the swinging mounting, and gland I is packed on the fixed support, leans on mutually with gap between the sealing plate II.
The pressure of described cleaning pressure water is 0.05～0.1MPa.
The material of described sealing plate I is a urethane rubber.
Described sealing plate II be in hard oil resistant abrasive rubber.
Advantage and good effect that the present invention has are: adopt multi-sealed, good sealing effect, and install simple, convenient, the sealing material low price.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the prior art constructions schematic representation;
Fig. 3 is the partial enlarged drawing of Fig. 1.
Embodiment
For further understanding summary of the invention of the present invention, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1 and Fig. 3, swinging mounting 10 of the present invention is fixed on the spindle flange, fixed support 4 is being contained on the flow deflecting cone 1, swinging mounting 10 and fixed support 4 Spielpassung, air Shround-band type maintenance sealing 7 is arranged between fixed support 4 and the flow deflecting cone 1, and working seal is the dull and stereotyped sealings of twice, and the dull and stereotyped sealing in first road is by the downstream side, with gland II5 sealing plate I6 is fixedly mounted on the fixed support 4, forms the sealing of first road between it and the swinging mounting 10; The dull and stereotyped sealing in second road is fixedly mounted on the swinging mounting 10 with gland III9 by upstream side, and gland I3 is fixedly mounted on the fixed support 4, leans on mutually with gap between the sealing plate II8.Feed the cleaning pressure water of 0.05～0.1MPa in the cavity that between fixed support 4 and swinging mounting 10 and two dull and stereotyped sealings, surrounds, before and after the dull and stereotyped sealing in first road, form pressure reduction like this, stop water to enter in the unit.Therefore, the sealing of first road is the water that sealing is come in from runner, and the sealing of second road is the clean water that sealing feeds.On fixed support 4, install drain tank 2, to discharge outer spilling water.
Claims (4)
1. seal of principal axis of water turbine in type of stay column, it is characterized in that: working seal comprises the dull and stereotyped sealing of twice, between the dull and stereotyped sealing of twice, feed cleaning pressure water, the dull and stereotyped sealing in first road is near the downstream side, comprise the swinging mounting that is fixed on the spindle flange, be fixed in the fixed support on the flow deflecting cone, swinging mounting and fixed support Spielpassung, suit sealing plate I on swinging mounting, sealing plate I is between swinging mounting and fixed support, gland II is adjacent with sealing plate I to be sleeved on the swinging mounting, and the two is simultaneously affixed with fixed support; The dull and stereotyped sealing in second road is near upstream side, and gland III is fixed on sealing plate II on the swinging mounting, and gland I is packed on the fixed support, leans on mutually with gap between the sealing plate II.
2. seal of principal axis of water turbine in type of stay column according to claim 1 is characterized in that: the pressure of described cleaning pressure water is 0.05～0.1MPa.
3. seal of principal axis of water turbine in type of stay column according to claim 2 is characterized in that: the material of described sealing plate I is a urethane rubber.
4. seal of principal axis of water turbine in type of stay column according to claim 3 is characterized in that: described sealing plate II be in hard oil resistant abrasive rubber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100583749A CN100451329C (en) | 2007-07-24 | 2007-07-24 | Seal of principal axis of water turbine in type of stay column |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100583749A CN100451329C (en) | 2007-07-24 | 2007-07-24 | Seal of principal axis of water turbine in type of stay column |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101092926A CN101092926A (en) | 2007-12-26 |
| CN100451329C true CN100451329C (en) | 2009-01-14 |
Family
ID=38991330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100583749A Expired - Fee Related CN100451329C (en) | 2007-07-24 | 2007-07-24 | Seal of principal axis of water turbine in type of stay column |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100451329C (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2142149Y (en) * | 1992-12-03 | 1993-09-15 | 四川电力科学试验研究所 | Helicoidal pump type mainshaft seal for water turbine |
| CN2157322Y (en) * | 1993-05-12 | 1994-02-23 | 黄建顺 | Seal device for water turbine |
| CN1111006A (en) * | 1994-04-24 | 1995-11-01 | 隆昌祝 | Hydraulic turbine main shaft sealing device |
| CN1217045A (en) * | 1996-04-29 | 1999-05-19 | 克瓦那涡轮机股份公司 | Sealing system for a hydraulic machine |
| CN2422490Y (en) * | 2000-05-29 | 2001-03-07 | 昆明电机有限责任公司 | Horizontal water turbine main shaft sealing device |
| EP1479952A2 (en) * | 2003-05-21 | 2004-11-24 | Mitsubishi Heavy Industries, Ltd. | Shaft seal mechanism |
| CN2756856Y (en) * | 2004-12-23 | 2006-02-08 | 天津市天发重型水电设备制造有限公司 | Main shaft seal device for water turbine |
| JP2006322342A (en) * | 2005-05-17 | 2006-11-30 | Toshiba Corp | Shaft seal device of hydraulic machinery |
| JP2006348959A (en) * | 2006-10-03 | 2006-12-28 | Toshiba Corp | Shaft watertight device for hydraulic machine |
-
2007
- 2007-07-24 CN CNB2007100583749A patent/CN100451329C/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2142149Y (en) * | 1992-12-03 | 1993-09-15 | 四川电力科学试验研究所 | Helicoidal pump type mainshaft seal for water turbine |
| CN2157322Y (en) * | 1993-05-12 | 1994-02-23 | 黄建顺 | Seal device for water turbine |
| CN1111006A (en) * | 1994-04-24 | 1995-11-01 | 隆昌祝 | Hydraulic turbine main shaft sealing device |
| CN1217045A (en) * | 1996-04-29 | 1999-05-19 | 克瓦那涡轮机股份公司 | Sealing system for a hydraulic machine |
| CN2422490Y (en) * | 2000-05-29 | 2001-03-07 | 昆明电机有限责任公司 | Horizontal water turbine main shaft sealing device |
| EP1479952A2 (en) * | 2003-05-21 | 2004-11-24 | Mitsubishi Heavy Industries, Ltd. | Shaft seal mechanism |
| CN2756856Y (en) * | 2004-12-23 | 2006-02-08 | 天津市天发重型水电设备制造有限公司 | Main shaft seal device for water turbine |
| JP2006322342A (en) * | 2005-05-17 | 2006-11-30 | Toshiba Corp | Shaft seal device of hydraulic machinery |
| JP2006348959A (en) * | 2006-10-03 | 2006-12-28 | Toshiba Corp | Shaft watertight device for hydraulic machine |
Non-Patent Citations (2)
| Title |
|---|
| 水轮机主轴密封结构的优化改造. 黄海平等.水力发电，第6期. 2002 |
| 水轮机主轴密封结构的优化改造. 黄海平等.水力发电，第6期. 2002 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101092926A (en) | 2007-12-26 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20130724 |