CN201865828U - Self-compensating spindle sealing device of hydraulic turbine generator unit - Google Patents
Self-compensating spindle sealing device of hydraulic turbine generator unit Download PDFInfo
- Publication number
- CN201865828U CN201865828U CN2010206233784U CN201020623378U CN201865828U CN 201865828 U CN201865828 U CN 201865828U CN 2010206233784 U CN2010206233784 U CN 2010206233784U CN 201020623378 U CN201020623378 U CN 201020623378U CN 201865828 U CN201865828 U CN 201865828U
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- Prior art keywords
- sealing
- sealing seat
- seat
- generator unit
- gland
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- Expired - Fee Related
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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
Abstract
The utility model relates to modification of spindle sealing of a hydraulic turbine generator unit, in particular to a self-compensating spindle sealing device of the hydraulic turbine generator unit, which mainly solves the technical problems that water leakage is increased, sealing function is weakened and the like due to the fact that a gap is formed between a seal part, for wear reason, and a wearing ring during operation of a hydraulic turbine unit in the prior art. The self-compensating spindle sealing device comprises a sealing seat (1) and a passage (2) in the sealing seat, and is characterized in that a wearing ring (3) is arranged below the sealing seat (1), a seal part (4) is arranged between the sealing seat and the wearing ring, one end of the seal part is arranged on the sealing seat in a sealed manner, the other end of the seal part contacts with a sealing gland (5), and a compression mechanism is arranged between the sealing gland and the sealing seat.
Description
Technical field
The utility model relates to a kind of improvement of hydraulic generator unit main shaft seal, especially relates to a kind of hydraulic generator unit self compensation main shaft sealing device.
Background technique
The effect of main shaft seal is leaking between sealing water turbine rotating part and standing part, and the quality of sealability directly influences the stable and safe operation of unit.When its working principle is unit operation, realize sealing function by the Sealing that is contained in wear-resistant ring, sealing seat, sealing gland, I-shaped interannular.Chinese patent discloses a kind of self-contained mixed flow vertical hydrogenerator group (notice of authorization number: CN 2610111 Y), it comprises generator, water turbine and draft tube, generator is installed in the water turbine top by generator stand, with the shared main shaft of water turbine, draft tube is installed in the water turbine below; Water turbine is made of ring, stator, seat ring and spiral case, blade control mechanism, a lid, top cover water stop ring, sealing seat, packing and packing gland and waste pipe under ring, the water distributor on runner, the water distributor; On the water distributor ring, water distributor down ring be positioned at the runner outside, seat ring and spiral case are positioned at ring on the water distributor, the water distributor outside of ring down, stator is under ring, the water distributor on the water distributor between the ring, the edge is circumferentially uniform; The runner of water turbine is connected by tapered sleeve, housing screw and generator shaft; Constitute outer draining device by top cover water stop ring, top cover and waste pipe, has the sealing teeth groove between item lid water stop ring and runner, have last sheaf space between top cover water stop ring and top cover, the upper end of waste pipe communicates with the outside of last sheaf space by top cover, and the lower end of waste pipe communicates with the upper end of draft tube; The blade control mechanism is made of guide vane teunnion, rotation connecting lever, connecting rod rotating shaft, connecting rod; Guide vane teunnion is connected with stator is vertical, and the rotation connecting lever is radially external, and inner and guide vane teunnion is hinged, and the outer end is provided with two connecting rod rotating shafts, in the adjacent connecting rod rotating shaft of two adjacent rotation connecting levers connecting rod is housed, and makes its line with two guide vane teunnions equal and parallel; All stators of water turbine all link to each other in twos by guide vane teunnion, rotation connecting lever, connecting rod.But this water wheels unit is in operation, and Sealing produces the gap because of wearing and tearing and wear-resistant interannular, and this will cause water leakage to increase, and sealing function reduces.
The model utility content
The utility model provides a kind of hydraulic generator unit self compensation main shaft sealing device, it mainly is to solve existing in prior technology water wheels unit to be in operation, Sealing produces the gap because of wearing and tearing and wear-resistant interannular, and this will cause water leakage to increase the technical problem of sealing function reduction etc.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
Hydraulic generator unit self compensation main shaft sealing device of the present utility model, comprise sealing seat, be provided with runner in the sealing seat, the below of described sealing seat is provided with wear-resistant ring, be provided with Sealing between sealing seat and the wear-resistant ring, Sealing one end is enclosed on the sealing seat, and the contact of the Sealing the other end has sealing gland, is provided with hold-down mechanism between sealing gland and the sealing seat.When unit operation, Sealing is because of producing the gap between wearing and tearing and the wear-resistant ring, and under the effect of hold-down mechanism, sealing gland produces and moves axially, and compresses Sealing itself and wear-resistant ring are close to, thereby realize the self compensation function.
As preferably, described hold-down mechanism includes the bolt of cross-under between sealing gland and the sealing seat, and bolt one end is connected with nut, is provided with spring between the bolt the other end and the sealing gland.By fastening nut spring is depressed into design height during installation, makes spring produce pretightening force along the bolt compaction direction.
As preferably, be provided with the I-shaped ring between described sealing seat bottom and the wear-resistant ring, Sealing is located between I-shaped ring and the sealing seat respectively, between I-shaped ring and the sealing gland, all be provided with the stop pin on the end face of sealing seat, sealing gland and the I-shaped ring.The stop pin inserts in the Sealing, can prevent that Sealing is shifted between sealing seat and wear-resistant ring.
As preferably, be provided with plain washer between described spring one end and the bolt, be provided with spring washer between nut and the sealing seat.Spring can withstand on the plain washer, and spring washer can prevent nut direct wearing and tearing sealing seat when turn.
Therefore, the utility model is the cross-under bolt between sealing seat and sealing gland, and the pretightening force by spring makes sealing gland compress Sealing all the time, therefore can compress Sealing its and wear-resistant ring are close to, thereby realization self compensation function is simple and reasonable for structure.
Description of drawings
Accompanying drawing 1 is a kind of structural representation of the present utility model.
Component, position and numbering among the figure: sealing seat 1, runner 2, wear-resistant ring 3, Sealing 4, sealing gland 5, bolt 6, nut 7, spring 8, I-shaped ring 9, stop pin 10, plain washer 11, spring washer 12.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: the hydraulic generator unit self compensation main shaft sealing device that this is routine, as Fig. 1, a sealing seat 1 is arranged, be provided with runner 2 in the sealing seat, the below of sealing seat is provided with wear-resistant ring 3, be provided with I-shaped ring 9 and Sealing 4 between sealing seat bottom and the wear-resistant ring, an end of Sealing is enclosed on the sealing seat, and the contact of the Sealing the other end has sealing gland 5.I-shaped ring 9 is located among the Sealing, all is provided with stop pin 10 on the end face of sealing seat, sealing gland and the I-shaped ring.Cross-under has bolt 6 between sealing gland and the sealing seat, and bolt one end is connected with nut 7, is provided with spring 8 between the bolt the other end and the sealing gland.Be provided with plain washer 11 between spring one end and the bolt, be provided with spring washer 12 between nut and the sealing seat.
During use,, make spring 8 produce pretightening force, move axially, compress Sealing 4, make Sealing can be close to all the time on the wear-resistant ring 3, thereby realize the self compensation function thereby make sealing gland 5 produce by fastening nut 7.
The above only is a specific embodiment of the utility model, but structure characteristic of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and variation of being done or modification all are encompassed among the claim of the present utility model.
Claims (4)
1. hydraulic generator unit self compensation main shaft sealing device, comprise sealing seat (1), be provided with runner (2) in the sealing seat, the below that it is characterized in that described sealing seat (1) is provided with wear-resistant ring (3), be provided with Sealing (4) between sealing seat and the wear-resistant ring, Sealing one end is enclosed on the sealing seat, and the contact of the Sealing the other end has sealing gland (5), is provided with hold-down mechanism between sealing gland and the sealing seat.
2. hydraulic generator unit self compensation main shaft sealing device according to claim 1, it is characterized in that described hold-down mechanism includes the bolt (6) of cross-under between sealing gland (5) and the sealing seat (1), bolt one end is connected with nut (7), is provided with spring (8) between the bolt the other end and the sealing gland.
3. hydraulic generator unit self compensation main shaft sealing device according to claim 1 and 2, it is characterized in that being provided with I-shaped ring (9) between described sealing seat (1) bottom and the wear-resistant ring (3), Sealing (4) is located between I-shaped ring and the sealing seat (1) respectively, between I-shaped ring and the sealing gland (5), all be provided with stop pin (10) on the end face of sealing seat, sealing gland and the I-shaped ring.
4. hydraulic generator unit self compensation main shaft sealing device according to claim 2 is characterized in that being provided with plain washer (11) between described spring (8) one ends and the bolt (6), is provided with spring washer (12) between nut (7) and the sealing seat (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206233784U CN201865828U (en) | 2010-11-25 | 2010-11-25 | Self-compensating spindle sealing device of hydraulic turbine generator unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206233784U CN201865828U (en) | 2010-11-25 | 2010-11-25 | Self-compensating spindle sealing device of hydraulic turbine generator unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201865828U true CN201865828U (en) | 2011-06-15 |
Family
ID=44136985
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206233784U Expired - Fee Related CN201865828U (en) | 2010-11-25 | 2010-11-25 | Self-compensating spindle sealing device of hydraulic turbine generator unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201865828U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971804A (en) * | 2016-07-05 | 2016-09-28 | 国家电网公司 | Supporting device for main shaft seal abrasion loss sensor |
| CN111981133A (en) * | 2020-09-04 | 2020-11-24 | 重庆水轮机厂有限责任公司 | Water turbine with main shaft sealing structure |
| KR102506648B1 (en) * | 2022-08-17 | 2023-03-03 | 제만석 | Apparatus for Grand packing of Soot blower for power plant and its manufacturing method |
-
2010
- 2010-11-25 CN CN2010206233784U patent/CN201865828U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971804A (en) * | 2016-07-05 | 2016-09-28 | 国家电网公司 | Supporting device for main shaft seal abrasion loss sensor |
| CN105971804B (en) * | 2016-07-05 | 2018-08-17 | 国家电网公司 | A kind of main shaft seal wear extent sensor support device |
| CN111981133A (en) * | 2020-09-04 | 2020-11-24 | 重庆水轮机厂有限责任公司 | Water turbine with main shaft sealing structure |
| KR102506648B1 (en) * | 2022-08-17 | 2023-03-03 | 제만석 | Apparatus for Grand packing of Soot blower for power plant and its manufacturing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20110615 Termination date: 20131125 |