CN208763806U - Axial flow hydraulic turbine main shaft seal is from discharge structure - Google Patents
Axial flow hydraulic turbine main shaft seal is from discharge structure Download PDFInfo
- Publication number
- CN208763806U CN208763806U CN201821413577.5U CN201821413577U CN208763806U CN 208763806 U CN208763806 U CN 208763806U CN 201821413577 U CN201821413577 U CN 201821413577U CN 208763806 U CN208763806 U CN 208763806U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- shaft seal
- hydraulic turbine
- axial flow
- discharge structure
- 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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Classifications
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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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- Hydraulic Turbines (AREA)
Abstract
The utility model relates to a kind of axial flow hydraulic turbine main shaft seals from discharge structure, drainage hole is offered on the fairing cap of water distributor, drainage hole is connected with a drainpipe, which drains into gutter for water through base ring and seat ring, then drains into sump through gutter.Since main shaft seal is from draining, it is effectively improved drainage performance at axial-flow wheel unit main shaft seal；And the ponding at main shaft seal can drain in time, can to avoid because of Automation Elements damage, main shaft seal ponding is excessively high caused by fault of water pump, causes the accident and shuts down and burn the major accident of bearing shell, improve unit operating condition.
Description
Technical field
The utility model belongs to turbine equipment technical field, is related to a kind of axial flow hydraulic turbine main shaft seal from draining knot
Structure.
Background technique
Existing axial-flow wheel unit, most of main shaft seal positions are set lower than top cover (the rotation oil of its bearing
Disk also may low roof cover), the leak of main shaft seal need to be drained using ancillary equipments such as water pump or jet pumps.
Utility model content
In order to overcome the disadvantages mentioned above of the prior art, the utility model provides a kind of axial flow hydraulic turbine main shaft seal from arranging
Water-bound, it can be realized axial flow hydraulic turbine main shaft seal water self-draining, alleviate axial flow hydraulic turbine main shaft seal row
Water is to the dependence of water pump, to improve unit reliability of operation.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of axial flow hydraulic turbine main shaft seal is certainly
Discharge structure offers drainage hole on the fairing cap of water distributor, and drainage hole is connected with a drainpipe, drainpipe warp
Water is drained into gutter by base ring and seat ring, then is drained into sump through gutter.
The drainpipe is made of stainless steel tube, is provided with connecting flange on drainpipe.
The drainage hole level height is lower than the rotation food tray of bearing.
The beneficial effects of the utility model are: being effectively improved axial-flow wheel unit main shaft since main shaft seal is from draining
Drainage performance at sealing；And the ponding at main shaft seal can drain in time, can be to avoid the damage because of Automation Elements, water pump
Failure causes main shaft seal ponding excessively high, causes the accident and shuts down and burn the major accident of bearing shell, improves unit operating condition.
Detailed description of the invention
Fig. 1 is the utility model structure diagram.
In figure: 1- drainpipe；2- connecting flange；3- drainage hole；4- fairing cap；5- base ring；6- seat ring；The gutter 7-.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Referring to Fig. 1, a kind of axial flow hydraulic turbine main shaft seal opens up on the fairing cap 4 of water distributor from discharge structure
There is level height lower than the drainage hole 3 of the rotation food tray of bearing, drainage hole 3 is connected with a drainpipe 1, and drainpipe 1 uses
Stainless steel tube makes, and is provided with connecting flange 2 on drainpipe 1, which drains into gutter 7 for water through base ring 5 and seat ring 6,
It is drained into sump through gutter 7 again.
Since main shaft seal is from draining, it is effectively improved drainage performance at axial-flow wheel unit main shaft seal；And main shaft
Ponding at sealing can drain in time, can be to avoid the damage because of Automation Elements, main shaft seal ponding mistake caused by fault of water pump
Height causes the accident and shuts down and burn the major accident of bearing shell, improves unit operating condition.
Claims (3)
1. a kind of axial flow hydraulic turbine main shaft seal is from discharge structure, it is characterised in that: opened up on the fairing cap of water distributor
There is drainage hole, drainage hole is connected with a drainpipe, which drains into gutter for water through base ring and seat ring, then through draining
Ditch drains into sump.
2. axial flow hydraulic turbine main shaft seal as described in claim 1 is from discharge structure, it is characterised in that: the drainpipe uses
Stainless steel tube makes, and is provided with connecting flange on drainpipe.
3. axial flow hydraulic turbine main shaft seal as described in claim 1 is from discharge structure, it is characterised in that: the draining hole horizontal
Height is lower than the rotation food tray of bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821413577.5U CN208763806U (en) | 2018-08-30 | 2018-08-30 | Axial flow hydraulic turbine main shaft seal is from discharge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821413577.5U CN208763806U (en) | 2018-08-30 | 2018-08-30 | Axial flow hydraulic turbine main shaft seal is from discharge structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208763806U true CN208763806U (en) | 2019-04-19 |
Family
ID=66133974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821413577.5U Expired - Fee Related CN208763806U (en) | 2018-08-30 | 2018-08-30 | Axial flow hydraulic turbine main shaft seal is from discharge structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208763806U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031981A (en) * | 2020-09-18 | 2020-12-04 | 张宏杰 | Generator main shaft air supplement pipe drainage system |
-
2018
- 2018-08-30 CN CN201821413577.5U patent/CN208763806U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112031981A (en) * | 2020-09-18 | 2020-12-04 | 张宏杰 | Generator main shaft air supplement pipe drainage system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190419 |