CN202091093U - Improved water turbine main shaft sealing device - Google Patents
Improved water turbine main shaft sealing device Download PDFInfo
- Publication number
- CN202091093U CN202091093U CN2011201448252U CN201120144825U CN202091093U CN 202091093 U CN202091093 U CN 202091093U CN 2011201448252 U CN2011201448252 U CN 2011201448252U CN 201120144825 U CN201120144825 U CN 201120144825U CN 202091093 U CN202091093 U CN 202091093U
- Authority
- CN
- China
- Prior art keywords
- sealing
- main shaft
- plate
- seal ring
- sealing plate
- 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 - 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
An improved water turbine main shaft sealing device includes a first sealing plate, a front cover plate, a back cover plate and a sealing cover through which the main shaft penetrates; an outer side of the first sealing plate is fixed with the front cover plate; a first sealing ring provided on an inner side of the first sealing plate is used for sealing the first sealing plate and a main shaft turning wheel; the device also includes a second sealing plate through which the main shaft penetrates; the outer side of the second sealing plate is fixed on the front cover plate; a sealing mechanism is provided on the inner side of the second sealing plate; the sealing mechanism includes a baffle plate fixed on the main shaft, an annular groove formed on the inner side of the second sealing plate and facing the baffle plate, a sealing ring disposed in the annular groove and a pressure water source device communicated with the annular groove for supplying a pressure water to the annular groove such that the sealing ring is attached to the baffle plate to form a sealing structure. The improved water turbine main shaft sealing device has multiple sealing structures so as to achieve good sealing effect, greatly prolongs service life of the main shaft, reduces loss owing to maintenance and improves economic benefit.
Description
Technical field
The utility model relates to the hydraulic turbine generator field, particularly a kind of improved hydraulic turbine main shaft sealing device.
Background technique
The water-stopping method that traditional hydraulic turbine main shaft sealing is commonly used only is the packing sealing; though this method can obtain certain stagnant water effect; but it causes the main shaft serious wear; main axe intensity reduces; unit durability shortens, and needs often main shaft to be keeped in repair, and has so not only increased rehabilitation expense; and because maintenance outage will cause bigger economic loss.
The model utility content
Main purpose of the present utility model is to overcome the above-mentioned shortcoming of prior art, proposes a kind of multi-sealing structure that has, and good sealing effect, can effectively prolong the unit hydraulic turbine main shaft sealing device in working life.
The utility model adopts following technological scheme:
A kind of improved hydraulic turbine main shaft sealing device, comprise first sealing plate that is arranged on the main shaft, front shroud, back shroud and capping, described first sealing plate outside fixes with described front shroud, the inboard be provided with that first seal ring is used to realize and spindle rotary wheel between sealing, it is characterized in that: also include second sealing plate that is arranged on the main shaft, this second sealing plate outside is fixed on the described front shroud, the inboard is provided with sealing mechanism, and sealing mechanism comprises the baffle plate that is fixed on the main shaft, be formed on the inboard circular groove relative of second sealing plate with baffle plate, be arranged at the seal ring in the circular groove and be communicated with and be used for providing press water to make seal ring be adjacent to the pressure water source device that baffle plate forms sealing configuration to circular groove with circular groove.
Further, the described second sealing plate inboard is fixed in the described capping outside, the inboard be provided with that second seal ring is used to realize and main shaft between sealing, and also be provided with the drain opening that communicates with capping inside in the described capping.
Further, described first sealing plate is formed with Seal cage with spindle rotary wheel, and described first sealing plate is provided with the drainage channel that communicates with the sealing chamber.
Further, described first sealing plate is the labyrinth seal plate.
Further, described first seal ring is the fine felt seal ring.
Further, described seal ring is a y-shaped ring.
Further, described second seal ring is the teflon packing.
By above-mentioned to description of the present utility model as can be known, compared with prior art, the utlity model has following beneficial effect: the utility model adopts three seal structures, with labyrinth seal plate and fine felt seal ring as first seal structures, the fraction current that leaked enter in the chamber that is formed by the second sealing plate sealing mechanism, sealing mechanism is provided with baffle plate, seal ring and pressure water source device, in circular groove, inject high pressure water by the pressure water source device, make seal ring be adjacent to baffle plate and stop current to leak, thereby realize second seal structures to main shaft; If there is water to spill from the second road sealing mechanism, then enter in the chamber that forms by the capping and second sealing plate, realize three seals by the teflon packing, the ponding in the chamber can be discharged by drain opening.The setting of the utility model multi-sealing structure has good sealing effect, has prolonged the working life of main shaft greatly, has reduced owing to safeguard the loss that causes, and has improved economic benefit.
Description of drawings
Fig. 1 is the sectional view of the water turbine of employing the utility model sealing configuration.
Embodiment
Below the utility model will be further described by embodiment.
With reference to Fig. 1, a kind of improved hydraulic turbine main shaft sealing device, comprise first sealing plate 2 that is arranged on the main shaft 1, front shroud 3, back shroud 4 and capping 5, first sealing plate, 2 outsides and front shroud 3 fix, the inboard be provided with that first seal ring 6 is used to realize and spindle rotary wheel 11 between sealing, and be formed with Seal cage with spindle rotary wheel 11, first sealing plate is provided with the drainage channel 16. that communicates with the sealing chamber and also includes second sealing plate 7 that is arranged on the main shaft 1, these second sealing plate, 7 outsides are fixed on the front shroud 3, the inboard is provided with sealing mechanism, and sealing mechanism comprises the baffle plate 8 that is fixed on the main shaft 1, be formed on the inboard circular groove 9 relative of second sealing plate 7 with baffle plate 7, be arranged at the seal ring 12 in the circular groove 9 and be communicated with and be used for providing press water to make seal ring 12 be adjacent to the pressure water source device that baffle plate 8 forms sealing configurations to circular groove 9 with circular groove 9.Second sealing plate, 7 inboards are fixed in capping 5 outsides, the inboard be provided with that second seal ring 13 is used to realize and main shaft 1 between sealing, and also be provided with the drain opening 15 that communicates with capping 5 inside in the capping 5.
First sealing plate of the present utility model adopts the labyrinth seal plate, first seal ring is the fine felt seal ring, seal ring is a y-shaped ring, second seal ring is the teflon packing, formed three seals mechanism, comprise first seal structures that labyrinth seal plate and fine felt seal ring are formed, the fraction current that leaked enter in the chamber that is formed by the second sealing plate sealing mechanism, sealing mechanism is provided with baffle plate, seal ring and pressure water source device, in circular groove, inject high pressure water by the pressure water source device, make seal ring be adjacent to baffle plate and stop current to leak, thereby realize second seal structures to main shaft; If there is water to spill from the second road sealing mechanism, then enter in the chamber that forms by the capping and second sealing plate, realize three seals by the teflon packing, the ponding in the chamber can be discharged by drain opening.
Above-mentioned only is an embodiment of the present utility model, but design concept of the present utility model is not limited thereto, and allly utilizes this design that the utility model is carried out the change of unsubstantiality, all should belong to the behavior of invading the utility model protection domain.
Claims (7)
1. improved hydraulic turbine main shaft sealing device, comprise first sealing plate that is arranged on the main shaft, front shroud, back shroud and capping, described first sealing plate outside fixes with described front shroud, the inboard be provided with that first seal ring is used to realize and spindle rotary wheel between sealing, it is characterized in that: also include second sealing plate that is arranged on the main shaft, this second sealing plate outside is fixed on the described front shroud, the inboard is provided with sealing mechanism, and sealing mechanism comprises the baffle plate that is fixed on the main shaft, be formed on the inboard circular groove relative of second sealing plate with baffle plate, be arranged at the seal ring in the circular groove and be communicated with and be used for providing press water to make seal ring be adjacent to the pressure water source device that baffle plate forms sealing configuration to circular groove with circular groove.
2. a kind of improved hydraulic turbine main shaft sealing device as claimed in claim 1, it is characterized in that: the described second sealing plate inboard is fixed in the described capping outside, the inboard be provided with that second seal ring is used to realize and main shaft between sealing, and also be provided with the drain opening that communicates with capping inside in the described capping.
3. a kind of improved hydraulic turbine main shaft sealing device as claimed in claim 1 is characterized in that: described first sealing plate is formed with Seal cage with spindle rotary wheel, and described first sealing plate is provided with the drainage channel that communicates with the sealing chamber.
4. as claim 1 or 3 described a kind of improved hydraulic turbine main shaft sealing devices, it is characterized in that: described first sealing plate is the labyrinth seal plate.
5. a kind of improved hydraulic turbine main shaft sealing device as claimed in claim 1 is characterized in that: described first seal ring is the fine felt seal ring.
6. a kind of improved hydraulic turbine main shaft sealing device as claimed in claim 1 is characterized in that: described seal ring is a y-shaped ring.
7. a kind of improved hydraulic turbine main shaft sealing device as claimed in claim 2 is characterized in that: described second seal ring is the teflon packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201448252U CN202091093U (en) | 2011-05-10 | 2011-05-10 | Improved water turbine main shaft sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201448252U CN202091093U (en) | 2011-05-10 | 2011-05-10 | Improved water turbine main shaft sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202091093U true CN202091093U (en) | 2011-12-28 |
Family
ID=45366162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201448252U Expired - Fee Related CN202091093U (en) | 2011-05-10 | 2011-05-10 | Improved water turbine main shaft sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202091093U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818028A (en) * | 2012-08-27 | 2012-12-12 | 福建南电股份有限公司 | Sand slurry wear-resistant high-position sealing structure for main shaft of water turbine |
| CN105422867A (en) * | 2015-12-02 | 2016-03-23 | 湖南中大创远数控装备有限公司 | Spindle sealing mechanism |
-
2011
- 2011-05-10 CN CN2011201448252U patent/CN202091093U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102818028A (en) * | 2012-08-27 | 2012-12-12 | 福建南电股份有限公司 | Sand slurry wear-resistant high-position sealing structure for main shaft of water turbine |
| CN105422867A (en) * | 2015-12-02 | 2016-03-23 | 湖南中大创远数控装备有限公司 | Spindle sealing mechanism |
| CN105422867B (en) * | 2015-12-02 | 2017-06-20 | 湖南中大创远数控装备有限公司 | A kind of main shaft seal mechanism |
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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: FUJIAN YONGCHUN HYDROGENERATING EQUIPMENT CO., LTD Free format text: FORMER NAME: FUJIAN TONGZHENG HYDROPOWER EQUIPMENT INDUSTRIAL CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 362601, No. 823, 58 West Road, five li street, Yongchun County, Fujian, Quanzhou Patentee after: Fujian Yongchun water turbine generator equipment Co., Ltd. Address before: 362601, No. 823, 58 West Road, five li street, Yongchun County, Fujian, Quanzhou Patentee before: Fujian TongzhengHydropower Equipment Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20120510 |