CN201599130U - Oil seal structure of combined bearing of bulb turbine unit - Google Patents
Oil seal structure of combined bearing of bulb turbine unit Download PDFInfo
- Publication number
- CN201599130U CN201599130U CN2009202379765U CN200920237976U CN201599130U CN 201599130 U CN201599130 U CN 201599130U CN 2009202379765 U CN2009202379765 U CN 2009202379765U CN 200920237976 U CN200920237976 U CN 200920237976U CN 201599130 U CN201599130 U CN 201599130U
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- CN
- China
- Prior art keywords
- oil
- bulb
- seal structure
- sealing
- bearing
- 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
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- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Sealing Devices (AREA)
Abstract
The utility model relates to an oil seal structure of a combined bearing of a bulb turbine unit, comprising an upper sealing oil tank, wherein a labyrinth ring of the upper sealing oil tank is divided into three sections; an air supplementing pipe is connected on the most upper part of the separating section of the most upstream side close to the mainshaft direction; the top part of the upper sealing oil tank is provided with an air vent; an oil returning hole is arranged below the separating section simultaneously; sealing troughs are arranged on the supporting ring and the side surface of the supporting flange of the radial bearing; the sealing trough is internally provided with a flange side surface seal which is sealed by oil-resisting rubber strips; by reinforcing the inflation and air exhausting, the pulverization of the oil of the upper sealing oil tank is reduced, the oil mist is stopped to enter the internal chamber of a stator; by sealing the side surface of the flange, the problem of damaging seal resulting from alternating clearance owing to unbalanced force is solved; and the oil leakage problem of the seam jointing surface is avoided by the function of the sealing rubber strip on the seam jointing surface of the bearing.
Description
[technical field]
The utility model belongs to the power generating equipment technical field, relates to a kind of bulb through-flow unit combination bearing oil seal structure that is applicable to the high rotating speed bulb-style of big capacity unit.
[background technique]
The oil seal structure of existing Bulb Turbine Units combination bearing mainly is made up of last leakproof fuel cell, bearing cap (descending) and the rubber weather strip of each surface of contact, wherein goes up leakproof fuel cell and is mainly used in the lubricant oil of discharging radial bearing.Lubricant oil forms a certain amount of mist of oil through behind the radial bearing at last leakproof fuel cell, condenses by the effect of fuel tank and disc, discharges from the fuel tank bottom.The labyrinth ring clearance seal is adopted in the sealing of last leakproof fuel cell and spindle flange.Owing to have the gap, make it be difficult to stop mist of oil and enter stator interior.Sealing between radial bearing pivot flange and support ring by opening seal groove at support ring and flange contact plane, seals with the oil resistant rubber bar.The radial bearing of generator combination bearing mainly bears main shaft sound attitude radial force, is delivered to the unit master by support ring and supports on (inner seat ring).In the time of dynamically,, make the sealing surface gap have the one-period alternation, have unstability because unbalanced force causes support ring to have axial swing, especially more obvious for the high-revolving unit of big capacity.In addition, because the distinguish face area of radial bearing is relatively large, its gap width is difficult to guarantee, and is full oil condition (going out on advancing under the oil in the oil groove) during the inherent unit operation of oil groove, also is easy to generate seepage.Bulb Turbine Units, owing to compactness is arranged in the spatial position, leakage of oil is directly dripped to main shaft, and the rotation of main shaft is got rid of oil to support again, thereby pollutes fixed, main shaft coil, makes insulation accelerated wearing out, and has a strong impact on the safe operation of unit.
[model utility content]
In order to overcome the above-mentioned shortcoming of prior art, the utility model provides a kind of can effectively reduce the oil atomization of going up leakproof fuel cell, and stop mist of oil to enter bore of stator, solve unbalanced force and produced the problem that sealing is destroyed in the alternation gap, stopped the bulb through-flow unit combination bearing oil seal structure of joint close face oil impregnate.
The technological scheme that its technical problem that solves the utility model adopts is: a kind of bulb through-flow unit combination bearing oil seal structure, last leakproof fuel cell is arranged, the described labyrinth ring of going up leakproof fuel cell is divided into three sections, draw near the top of major axes orientation spacer at upstream side and to be connected to blowdown pipe, top at last leakproof fuel cell has exhaust port, has spill port simultaneously below spacer; Pivot flange side at support ring and radial bearing is provided with seal groove, and the flange side seal that seals with the oil resistant rubber bar is housed in the sealing groove.
Also be provided with outlet pipe in the described bulb through-flow unit combination bearing oil seal structure, described outlet pipe draws and is connected to the scavenge oil case.
Described spill port links by pipeline and oil sump tank.
The bearing joint close face of leakproof fuel cell is provided with bearing joint close face seal adhesive tape on described.
Described main shaft periphery is arranged with the main shaft guard shield.
The beneficial effects of the utility model are: to the mist of oil overflow problem of last leakproof fuel cell, inflate by force and the exhaust measure, simultaneously drip and discharge coagulating carburetion at labyrinth ring, to support ring and radial bearing flange gap leakage of oil problem, employing is at the flange side seal, to bearing joint close face leakage problems radially, adopt sealing joint strip and add to be coated with sealer and to seal; By strong inflation and exhaust, reduce to go up the oil atomization of leakproof fuel cell, and stop mist of oil to enter bore of stator; By sealing, solved unbalanced force and produced the problem that sealing is destroyed in the alternation gap in the flange side; By carrying out the use of bearing joint close face seal adhesive tape, stopped joint close face oil impregnate problem.
[description of drawings]
Fig. 1 is a structural representation of the present utility model;
Among the figure: 1-disc, the last leakproof fuel cell of 2-, 3-support ring, 4-radial bearing, 5-oil groove, 6-base, 7-bearing cap bottom, 8-main shaft, 9-blowdown pipe, 10-exhaust port, 11-spill port, 12-flange side seal, 13-bearing joint close face seal adhesive tape, 14-main shaft guard shield.
[embodiment]
Below in conjunction with drawings and Examples the utility model is further specified:
Referring to Fig. 1, a kind of bulb through-flow unit combination bearing oil seal structure, last leakproof fuel cell 2 is arranged, the labyrinth ring that should go up leakproof fuel cell 2 is divided into three sections, draw near the top of main shaft 8 direction spacers at upstream side and to be connected to one section blowdown pipe 9, when unit operation, open, the air-flow that 8 rotations produce by main shaft is strengthened aeration, between labyrinth ring, form the relatively high pressure air cavity, stop mist of oil to enter, pore 10 begins to rehearse at the top of last leakproof fuel cell 2, when high rotating speed unit mist of oil can't be when last leakproof fuel cell 2 condenses fully, this outlet pipe need draw and is connected to the scavenge oil case, has spill port 11 simultaneously below spacer, allow the oil droplet that condenses get back to oil sump tank, drain from the bottom of oil sump tank then.For the sealing of support ring 3 with radial bearing 4 pivot flanges, then open a circle seal groove in the side of pivot flange, the flange side seal 12 that seals with φ 8 oil resistant rubber bars is housed in the sealing groove.Enabling of flange side seal 12 avoided the influence of alternation gap to sealing, thereby solves the problem of gap leakage of oil.Carrying out the distinguish face of bearing, have seal groove Stamping Steel Ribbon from above-mentioned seal groove to last leakproof fuel cell 2, oil resistant rubber bar with φ 8 seals, promptly the bearing joint close face at last leakproof fuel cell 2 is provided with bearing joint close face seal adhesive tape 13, thereby has guaranteed that the seepage of joint close face can not leak into the outside of bearing; Simultaneously be provided with main shaft guard shield 14 in main shaft 8 outsides.
Claims (5)
1. bulb through-flow unit combination bearing oil seal structure, last leakproof fuel cell is arranged, it is characterized in that: the described labyrinth ring of going up leakproof fuel cell is divided into three sections, draw near the top of major axes orientation spacer at upstream side and to be connected to blowdown pipe, top at last leakproof fuel cell has exhaust port, has spill port simultaneously below spacer; Pivot flange side at support ring and radial bearing is provided with seal groove, and the flange side seal that seals with the oil resistant rubber bar is housed in the sealing groove.
2. bulb through-flow unit combination bearing oil seal structure as claimed in claim 1 is characterized in that: also be provided with outlet pipe in the described bulb through-flow unit combination bearing oil seal structure, described outlet pipe draws and is connected to the scavenge oil case.
3. bulb through-flow unit combination bearing oil seal structure as claimed in claim 1, it is characterized in that: described spill port links by pipeline and oil sump tank.
4. bulb through-flow unit combination bearing oil seal structure as claimed in claim 1 is characterized in that: the bearing joint close face of leakproof fuel cell is provided with bearing joint close face seal adhesive tape on described.
5. bulb through-flow unit combination bearing oil seal structure as claimed in claim 1, it is characterized in that: described main shaft periphery is arranged with the main shaft guard shield.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202379765U CN201599130U (en) | 2009-10-28 | 2009-10-28 | Oil seal structure of combined bearing of bulb turbine unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202379765U CN201599130U (en) | 2009-10-28 | 2009-10-28 | Oil seal structure of combined bearing of bulb turbine unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201599130U true CN201599130U (en) | 2010-10-06 |
Family
ID=42810183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202379765U Expired - Fee Related CN201599130U (en) | 2009-10-28 | 2009-10-28 | Oil seal structure of combined bearing of bulb turbine unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201599130U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930956A (en) * | 2017-03-24 | 2017-07-07 | 天津甘泉集团有限公司 | A kind of full through-flow submersible pump with automatic-sealed control system |
-
2009
- 2009-10-28 CN CN2009202379765U patent/CN201599130U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930956A (en) * | 2017-03-24 | 2017-07-07 | 天津甘泉集团有限公司 | A kind of full through-flow submersible pump with automatic-sealed control system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: GUANGDONG HONGYUAN ZHONGLI POWER GENERATING EQUIPM Free format text: FORMER OWNER: SHAOGUAN ZHONGLI POWER GENERATING EQUIPMENT CO., LTD. OF GUANGDONG MINGZHU GROUP Effective date: 20120326 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120326 Address after: Pavilion 512031 Guangdong province Zhenjiang District of Shaoguan City Patentee after: Guangdong Hongyuan Zhongli Generation Equipment Co., Ltd. Address before: Pavilion 512031 Guangdong province Zhenjiang District of Shaoguan City Patentee before: Shaoguan Zhongli Generating Equipment Co., Ltd., Guangdong Mingzhu Group |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20131028 |