CN212615138U - Top cover drainage pressure equalizing cavity structure of water turbine - Google Patents
Top cover drainage pressure equalizing cavity structure of water turbine Download PDFInfo
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- CN212615138U CN212615138U CN202020585199.XU CN202020585199U CN212615138U CN 212615138 U CN212615138 U CN 212615138U CN 202020585199 U CN202020585199 U CN 202020585199U CN 212615138 U CN212615138 U CN 212615138U
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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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Abstract
The utility model relates to a hydraulic turbine top cap drainage voltage-sharing chamber structure, the hydraulic turbine top cap mechanism technical field that belongs to, including the hydraulic turbine main shaft, hydraulic turbine main shaft lower extreme be equipped with the runner crown of hydraulic turbine main shaft flange formula bolt-up, runner crown upper end be equipped with the top cap, top cap upper end be equipped with the drain pipe that is linked together with runner crown upper portion, drain pipe and top cap between be equipped with the chamber of fitting with a contraceptive ring that is linked together with the top cap, the chamber side of fitting with a contraceptive ring be integrated annular welded water proof crown plate with the chamber of fitting with a contraceptive ring. The water draining device has the advantages of simple structure, good water draining effect, high operation stability and long service life. The problem of the clearance between runner crown leak-stopping ring and the top cap leak-stopping ring leak is solved. The top cap drainage function is improved, the water pressure between the runner crown and the top cap is reduced, the abrasion of silt to a drainage pipe is reduced, and potential safety hazards caused by flooding of a guide bearing and a waterwheel chamber are avoided.
Description
Technical Field
The utility model relates to a hydraulic turbine top cap mechanism technical field, concretely relates to hydraulic turbine top cap drainage voltage-sharing cavity structure.
Background
The water leakage of the top cover of the hydraulic turbine mainly comes from the water leakage of a gap between the upper crown leakage-stopping ring of the runner and the top cover leakage-stopping ring, the top cover drainage system plays a key role in the safe operation of the hydraulic turbine unit, and the failure of the top cover drainage system can lead to the result that a guide bearing and a water turbine chamber are submerged by water.
Disclosure of Invention
The utility model discloses mainly solve and have among the prior art that waterproof performance is poor, operating stability is low and life is short not enough, provide a hydraulic turbine top cap drainage voltage-sharing chamber structure, it has simple structure, drainage effect is good, operating stability is high and long service life. The problem of the clearance between runner crown leak-stopping ring and the top cap leak-stopping ring leak is solved. The top cap drainage function is improved, the water pressure between the runner crown and the top cap is reduced, the abrasion of silt to a drainage pipe is reduced, and potential safety hazards caused by flooding of a guide bearing and a waterwheel chamber are avoided.
The above technical problem of the present invention can be solved by the following technical solutions:
the utility model provides a hydraulic turbine top cap drainage voltage-sharing chamber structure, includes the hydraulic turbine main shaft, hydraulic turbine main shaft lower extreme be equipped with the runner crown of the flange formula bolt-up of hydraulic turbine main shaft, runner crown upper end be equipped with the top cap, top cap upper end be equipped with the drain pipe that is linked together with runner crown upper portion, drain pipe and top cap between be equipped with the chamber of fitting with a contraceptive ring that is linked together with the top cap, the chamber side of fitting with a contraceptive ring be integrated annular welded water proof crown plate with last ring chamber.
Preferably, a main shaft sealing frame which is connected with the inner wall of the main shaft of the water turbine in a nested manner is arranged between the water-resisting ring plate and the main shaft of the water turbine.
Preferably, a lower cavity which is communicated with the upper annular cavity and the top cover and fixedly connected with the upper annular cavity and the top cover in a welding manner is arranged between the upper annular cavity and the top cover, an upper annular partition plate which is fixedly connected with the main shaft sealing frame through bolts is arranged between the lower cavity and the upper annular cavity, and the upper annular partition plate is communicated with the upper annular cavity and the lower cavity.
Preferably, a plurality of pump plates which are distributed in an equidistant annular mode and are welded and fixed with the runner crown in an integrated mode are arranged between the runner crown and the top cover, and the pump plates are sleeved with the top cover in an interval mode.
The utility model discloses can reach following effect:
the utility model provides a hydraulic turbine top cap drainage voltage-sharing chamber structure compares with prior art, has simple structure, drainage effect is good, operating stability is high and long service life. The problem of the clearance between runner crown leak-stopping ring and the top cap leak-stopping ring leak is solved. The top cap drainage function is improved, the water pressure between the runner crown and the top cap is reduced, the abrasion of silt to a drainage pipe is reduced, and potential safety hazards caused by flooding of a guide bearing and a waterwheel chamber are avoided.
Drawings
Fig. 1 is a structural sectional view of the present invention.
In the figure: the water turbine comprises a top cover 1, a water discharge pipe 2, an upper ring cavity 3, an upper ring partition plate 4, a water-stop ring plate 5, a lower cavity 6, a main shaft sealing frame 7, a water turbine main shaft 8, a pump plate 9 and a runner crown 10.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): as shown in fig. 1, a hydraulic turbine top cap drainage voltage-sharing chamber structure, including hydraulic turbine main shaft 8, hydraulic turbine main shaft 8 lower extreme is equipped with runner crown 10 with hydraulic turbine main shaft 8 looks flange formula bolt-up, and runner crown 10 upper end is equipped with top cap 1, is equipped with 4 blocks between runner crown 10 and top cap 1 and is equidistant annular distribution and be integration welded fastening's pump plate 9 with runner crown 10, and pump plate 9 cup joints with top cap 1 looks interval formula. The upper end of the top cover 1 is provided with a drain pipe 2 communicated with the upper part of the runner crown 10, an upper ring cavity 3 communicated with the top cover 1 is arranged between the drain pipe 2 and the top cover 1, an lower ring cavity 6 communicated with the upper ring cavity 3 and the top cover 1 and fixedly connected in a welding manner is arranged between the upper ring cavity 3 and the top cover 1, an upper ring partition plate 4 fixedly connected with a main shaft sealing frame 7 through bolts is arranged between the lower ring cavity 6 and the upper ring cavity 3, and the upper ring partition plate 4 is communicated with the upper ring cavity 3 and the lower ring cavity 6. And a water-resisting ring plate 5 which is integrally and annularly welded with the upper ring cavity 3 is arranged on the side edge of the upper ring cavity 3. And a main shaft sealing frame 7 which is connected with the inner wall of the main shaft 8 of the water turbine in a nested manner is arranged between the water-stop ring plate 5 and the main shaft 8 of the water turbine.
When the unit normally operates, the pump plate 9 leaks water and gets rid of to cavity of resorption 6 with top cap 1, then carries supreme ring chamber 3 by the hole in the cavity of resorption 6 again, and pressure slowly reduces, then arranges to the sump pit by the drain pipe 2 of connecting on the cavity of resorption 3, has so both reduced pressure for water pressure becomes even, can also reduce the wearing and tearing of silt to the drain pipe.
In conclusion, the water turbine top cover drainage pressure equalizing cavity structure has the advantages of simple structure, good drainage effect, high operation stability and long service life. The problem of the clearance between runner crown leak-stopping ring and the top cap leak-stopping ring leak is solved. The top cap drainage function is improved, the water pressure between the runner crown and the top cap is reduced, the abrasion of silt to a drainage pipe is reduced, and potential safety hazards caused by flooding of a guide bearing and a waterwheel chamber are avoided.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without deviating from the basic characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
In conclusion, the above description is only the specific embodiment of the present invention, but the structural features of the present invention are not limited thereto, and any person skilled in the art can make changes or modifications within the scope of the present invention.
Claims (4)
1. The utility model provides a hydraulic turbine top cap drainage voltage-sharing chamber structure which characterized in that: including hydraulic turbine main shaft (8), hydraulic turbine main shaft (8) lower extreme be equipped with runner crown of crown (10) with hydraulic turbine main shaft (8) looks flange formula bolt-up (10), runner crown of crown (10) upper end be equipped with top cap (1), top cap (1) upper end be equipped with drain pipe (2) that are linked together with runner crown of crown (10) upper portion, drain pipe (2) and top cap (1) between be equipped with last ring chamber (3) that are linked together with top cap (1), last ring chamber (3) side be equipped with and be integration annular welded water proof crown plate (5) with last ring chamber (3).
2. The structure of the water turbine top cover drainage pressure equalizing cavity of the water turbine according to claim 1, characterized in that: and a main shaft sealing frame (7) which is connected with the inner wall of the main shaft (8) of the water turbine in a nested manner is arranged between the water-resisting ring plate (5) and the main shaft (8) of the water turbine.
3. The structure of the water turbine top cover drainage pressure equalizing cavity of the water turbine according to claim 2, characterized in that: go up ring chamber (3) and top cap (1) between be equipped with and go up ring chamber (3), top cap (1) and be fixed lower chamber (6) of welded connection, lower chamber (6) and last ring chamber (3) between be equipped with the fixed ring baffle (4) of fitting with a contraceptive ring of bolted connection mutually of main shaft seal frame (7), ring baffle (4) and last ring chamber (3), lower chamber (6) be linked together.
4. The structure of the water turbine top cover drainage pressure equalizing cavity of the water turbine according to claim 1, characterized in that: the runner go up crown (10) and top cap (1) between be equipped with a plurality of equidistant annular distribution and be integration welded fastening's pump plate (9) with runner go up crown (10), pump plate (9) cup joint with top cap (1) looks interval formula.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585199.XU CN212615138U (en) | 2020-04-20 | 2020-04-20 | Top cover drainage pressure equalizing cavity structure of water turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020585199.XU CN212615138U (en) | 2020-04-20 | 2020-04-20 | Top cover drainage pressure equalizing cavity structure of water turbine |
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| Publication Number | Publication Date |
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| CN212615138U true CN212615138U (en) | 2021-02-26 |
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| CN202020585199.XU Active CN212615138U (en) | 2020-04-20 | 2020-04-20 | Top cover drainage pressure equalizing cavity structure of water turbine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586312A (en) * | 2021-09-07 | 2021-11-02 | 中国水利水电科学研究院 | Top cover inner cavity design method for reducing vertical vibration hazard of top cover of water turbine |
| CN114576206A (en) * | 2022-03-15 | 2022-06-03 | 江苏省江都水利工程管理处 | Automatic desilting visual guide vane body device of vertical axial-flow pump |
| CN114876696A (en) * | 2022-04-14 | 2022-08-09 | 西安热工研究院有限公司 | Optimization device and method for prolonging service life of top cover water taking pipe |
-
2020
- 2020-04-20 CN CN202020585199.XU patent/CN212615138U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113586312A (en) * | 2021-09-07 | 2021-11-02 | 中国水利水电科学研究院 | Top cover inner cavity design method for reducing vertical vibration hazard of top cover of water turbine |
| CN113586312B (en) * | 2021-09-07 | 2022-10-04 | 中国水利水电科学研究院 | Top cover inner cavity design method for reducing vertical vibration hazard of top cover of water turbine |
| CN114576206A (en) * | 2022-03-15 | 2022-06-03 | 江苏省江都水利工程管理处 | Automatic desilting visual guide vane body device of vertical axial-flow pump |
| CN114876696A (en) * | 2022-04-14 | 2022-08-09 | 西安热工研究院有限公司 | Optimization device and method for prolonging service life of top cover water taking pipe |
| CN114876696B (en) * | 2022-04-14 | 2024-03-19 | 西安热工研究院有限公司 | Optimizing device and method for prolonging service life of top cover water intake pipe |
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