CN113803202A - Guide vane shaft head water leakage collecting device of hydroelectric generating set - Google Patents
Guide vane shaft head water leakage collecting device of hydroelectric generating set Download PDFInfo
- Publication number
- CN113803202A CN113803202A CN202110907516.4A CN202110907516A CN113803202A CN 113803202 A CN113803202 A CN 113803202A CN 202110907516 A CN202110907516 A CN 202110907516A CN 113803202 A CN113803202 A CN 113803202A
- Authority
- CN
- China
- Prior art keywords
- guide vane
- water
- sleeve
- pivot
- water leakage
- 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.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 238000007789 sealing Methods 0.000 claims abstract description 75
- 238000011010 flushing procedure Methods 0.000 claims description 11
- 239000000428 dust Substances 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 3
- 230000008569 process Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 description 10
- 230000008595 infiltration Effects 0.000 description 6
- 238000001764 infiltration Methods 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
- F03B11/006—Sealing arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B3/00—Machines or engines of reaction type; Parts or details peculiar thereto
- F03B3/16—Stators
- F03B3/18—Stator blades; Guide conduits or vanes, e.g. adjustable
- F03B3/183—Adjustable vanes, e.g. wicket gates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/10—Stators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2240/00—Components
- F05B2240/20—Rotors
- F05B2240/24—Rotors for turbines
-
- 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 invention relates to a guide vane shaft head water leakage collecting device of a water turbine generator set, which comprises a guide vane pivot, wherein a guide vane arm is arranged outside the guide vane pivot and close to the end part of the guide vane pivot, the guide vane pivot is provided with a boss, a joint bearing is clamped between the guide vane arm and the boss, a guide vane sleeve is arranged outside the joint bearing, a concave part in the middle of the outer ring of the joint bearing is provided with a water drainage groove, the water drainage groove is used for collecting water leakage at the guide vane pivot, and a water collecting cover is arranged outside the guide vane sleeve; the lowest position of the guide vane sleeve is provided with a drain hole, and the drain hole is communicated with the drain tank. The invention collects and processes the water leakage generated by the sealing damage of the shaft sleeve in time, reduces the further damage of the guide vane shaft sleeve caused by the water leakage and reduces the pollution of the external environment.
Description
Technical Field
The invention relates to a guide vane shaft head water leakage collecting device, in particular to a guide vane shaft head water leakage collecting device of a water turbine generator set.
Background
The hydroelectric generating set is a device which connects a water turbine and a generator together, converts water flow energy into rotary mechanical energy and converts the rotary mechanical energy into electric energy.
The bulb through-flow type water turbine generator set is of a horizontal structure, and guide vanes of the water turbine are distributed on the vertical surface. The guide vane is connected with the control ring through the crank arm, and the guide vane servomotor controls the control ring to adjust the opening degree of the guide vane. The sealing between the guide vane shaft sleeve and the water distributor is mainly a YX sealing structure, the sealing is positioned on the inner side of the sealing sleeve, the outer side of the sealing sleeve is close to an O-shaped rubber sealing ring, and the whole sealing sleeve is fixed on the water distributor through a limiting pin. In the rotating process of the guide vane, water pressure in the flow channel acts on the YX sealing surface, and the lip edge of the YX sealing is sealed with the rotating guide vane pivot. In the starting, stopping and normal operation processes of the unit, the guide vane rotates constantly, and after the YX seal and the guide vane pivot rub against each other for a period of time, the water pressure in the sealing lip damage failure flow passage leaks outwards. Meanwhile, because the sealing structure is simple and the guide vanes are distributed on the vertical surfaces of the guide vanes and are stressed differently, particularly in the horizontal direction, eccentric wear is easily generated in the shaft sleeve sealing under the action of the gravity of the guide vanes, and the sealing damage is accelerated.
Disclosure of Invention
The invention aims to solve the technical problem of providing a guide vane shaft head water leakage collecting device for a water turbine generator set, which can timely collect and treat water leakage generated by sealing damage of a shaft sleeve, reduce further damage of the guide vane shaft sleeve caused by water leakage and reduce pollution to the external environment.
The technical scheme for solving the technical problems is as follows: a guide vane shaft head water leakage collecting device of a water turbine generator set comprises a guide vane pivot, a guide vane arm is arranged outside the guide vane pivot and close to the end part of the guide vane pivot, the guide vane pivot is provided with a boss, a joint bearing is clamped between the guide vane arm and the boss, a guide vane sleeve is arranged outside the joint bearing, a water drainage groove is formed in a concave part in the middle of the outer ring of the joint bearing, the water drainage groove is used for collecting water leakage at the guide vane pivot, and a water collecting cover is arranged outside the guide vane sleeve;
the lowest position of the guide vane sleeve is provided with a drain hole, and the drain hole is communicated with the drain tank.
The invention has the beneficial effects that: the guide vane sleeve is provided with the annular groove which is used for collecting the water seepage between the guide vane pivot and the sealing piece and draining the water seepage through the drain hole on the guide vane sleeve, so that the abrasion of a rotating part is reduced, the water seepage leakage of the shaft sleeve is reduced, and the splashing is reduced.
On the basis of the technical scheme, the invention can be further improved as follows.
Furthermore, the water collecting cover is provided with a flushing hole, and the flushing hole is communicated with a gap between the water collecting cover and the guide vane sleeve.
Adopt above-mentioned further scheme's beneficial effect be after the wash port on the stator sleeve blocks up, wash the mediation through the flushing hole with it, and the flushing hole still is used for testing whether the sealed between water collecting cover and the stator sleeve meets the requirements.
Further, an outer water distribution ring is further installed outside the guide vane pivot, and a sealing sleeve is installed between the outer water distribution ring and the boss.
Adopt the beneficial effect of above-mentioned further scheme to be used for reducing the infiltration between outer water ring and the boss of joining in marriage.
Further, a YX-shaped sealing ring for a shaft is arranged between the sealing sleeve and the guide vane pivot.
Adopt the beneficial effect of above-mentioned further scheme to be that the axle is with YX type sealing washer further reduces the infiltration between outer water ring and the boss.
Furthermore, a V-shaped sealing ring is arranged between the outer ring of the joint bearing and the guide vane arm.
Adopt the beneficial effect of above-mentioned further scheme to strengthen sealed between joint bearing and the guide vane arm, reduce the infiltration.
Further, the guide vane sleeve is close to a first annular groove is formed in one side of the joint bearing, and a first sealing ring is installed in the first annular groove.
Adopt above-mentioned further scheme's beneficial effect be that first sealing washer reduces the infiltration between joint bearing and the stator sleeve, strengthens sealed.
Further, be provided with second annular and third annular in the water collecting cover, in the second annular with install second sealing washer and dust ring in the third annular respectively.
The beneficial effect of adopting the further proposal is that the second sealing ring is used for strengthening the sealing between the guide vane sleeve and the water collecting cover; the dust ring is used for preventing dust or impurities from entering the rotating component.
Further, in the water collecting cover and be located the second annular groove with be provided with the fourth annular groove between the third annular groove, install the rotatory sealing washer for the axle in the fourth annular groove. Adopt the beneficial effect of above-mentioned further scheme to be that the axle is with rotatory sealing washer further to strengthen the sealed between water collecting cover and the stator sleeve.
Further, the end cover is installed through the bolt to the stator pivot tip, the bolt with be provided with combination seal ring between the end cover.
Adopt above-mentioned further scheme's beneficial effect be that the end cover prevents that the infiltration from leaking outward at bolt department.
Further, a third sealing ring is arranged between the guide vane sleeve and the outer water distribution ring.
Adopt the beneficial effect of above-mentioned further scheme to be that the third sealing washer is used for strengthening the sealed between stator sleeve and the outer water ring that joins in marriage.
Drawings
FIG. 1 is a schematic cross-sectional view of an embodiment of the present invention;
FIG. 2 is an enlarged schematic view of FIG. 1 at A according to the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1. a vane pivot; 2. a guide vane arm; 3. a boss; 4. a knuckle bearing; 5. a guide vane sleeve; 6. a water discharge tank; 7. a drain hole; 8. a water collection cover; 9. flushing the hole; 10. an external water distribution ring; 11. sealing sleeves; 12. a guide vane arm; 13. a V-shaped sealing ring; 14. a first seal ring; 15. a second seal ring; 16. a dust ring; 17. a rotary seal ring for a shaft; 18. an end cap; 19. a bolt; 20. and a third sealing ring.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "center", "length", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "peripheral side", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, 2 and 3, the guide vane shaft head water leakage collecting device for the water turbine generator set comprises a guide vane pivot 1, an end cover 18 is installed at the end part of the guide vane pivot 1 through a bolt 19, and the end cover 18 can effectively prevent a guide vane arm 2 from being axially removed along the guide vane pivot 1. And a combined sealing washer is arranged between the bolt 19 and the end cover 18 and is mainly used for enhancing sealing and preventing water from leaking outside at the bolt 19. Guide vane pivot 1 is outer and be close to guide vane pivot 1 tip and install guide vane arm 2, and guide vane arm 2 one end suit is in the guide vane pivot 1 outside, and the other end outwards extends.
The guide vane pivot 1 is provided with a boss 3, a joint bearing 4 is clamped between the guide vane arm 2 and the boss 3, the joint bearing 4 comprises a joint bearing inner ring and a joint bearing outer ring, a guide vane sleeve 5 is arranged outside the outer ring of the joint bearing 4, a drainage groove 6 is arranged at a concave part in the middle of the outer ring of the joint bearing 4, the drainage groove 6 is used for collecting water leakage at the guide vane pivot 1, the water leakage is mainly water seepage caused by untight sealing caused by long-term eccentric wear of the guide vane pivot 1 and an XY sealing surface, a drain hole 7 is arranged at the lowest part of the guide vane sleeve 5, and wash port 7 and water drainage tank 6 UNICOM, the infiltration water conservancy diversion of collecting in the water drainage tank 6 is discharged, and the drain pipe of each stator links to each other with the annular galvanized pipe of arranging on the water distributor of unit, and the galvanized ring canal bottom increases arranges the straight tube to the ground escape canal along the wall in, and each drain pipe attach fitting closely can not have and leak. Through the transformation of the guide vane sleeve and the arrangement of the drain pipe, the sealing and water leakage of the shaft sleeve can be guided and drained, and the purposes of water leakage and splashing of the shaft sleeve are prevented.
A water collecting cover 8 is arranged outside the guide vane sleeve 5, a flushing hole 9 is formed in the water collecting cover 8, and the flushing hole 9 is communicated with a gap between the water collecting cover 8 and the guide vane sleeve 5. After the drain hole 7 on the guide vane sleeve 5 is blocked, the guide vane sleeve is flushed and dredged through the flushing hole 9, and the drainage effect is improved. Meanwhile, the flushing hole 9 is also used for testing whether the sealing between the water collecting cover 8 and the guide vane sleeve 5 meets the requirement or not, and the testing is carried out through pressurization, experiments and the like.
An outer water distribution ring 10 is further installed outside the guide vane pivot 1, and the outer water distribution ring 10 is mainly used for fixing the guide vane and ensuring the flexible rotation of the guide vane. A sealing sleeve 11 is arranged between the outer water distribution ring 10 and the boss 3, a YX-shaped sealing ring 12 for the shaft is arranged between the sealing sleeve 11 and the guide vane pivot shaft 1, and the XY-shaped sealing ring 12 for the shaft is eccentric due to the gravity of the guide vane pivot shaft 1, so that water seepage is easy to occur. In some embodiments, in order to further enhance the sealing effect of the XY-type sealing ring 12, O-type sealing rings are further disposed on two sides of the sealing sleeve 11, and the O-type sealing rings are matched with the XY-type sealing ring 12 to reduce the abrasion of the XY-type sealing ring 12 and enhance the sealing performance of the sealing sleeve 11.
A V-shaped sealing ring 13 is arranged between the outer ring of the knuckle bearing 4 and the guide vane arm 2, and in order to improve the wear resistance of the V-shaped sealing ring 13, the V-shaped sealing ring can be made of polyurethane rubber. The V-shaped sealing ring 13 is mainly used for enhancing the sealing performance between the outer ring of the knuckle bearing 4 and the lower side of the guide vane arm 2 and reducing seepage from the guide vane arm 2 to the outside.
A first annular groove is formed in the guide vane sleeve 5 and on one side close to the joint bearing 4, a first sealing ring 14 is installed in the first annular groove, and in a specific embodiment, the first sealing ring 14 can be an O-shaped sealing ring to enhance the sealing performance between the outer ring of the joint bearing 4 and the guide vane sleeve 5. A second annular groove and a third annular groove are arranged in the water collecting cover 8, and a second sealing ring 15 and a dust ring 16 are respectively arranged in the second annular groove and the third annular groove. In some embodiments, the second sealing ring 15 may also be an O-ring, and the dust ring 16 is used to prevent dust or impurities from entering the rotating component, thereby reducing abrasive wear.
A fourth annular groove is formed in the water collecting cover 8 and located between the second annular groove and the third annular groove, and a rotary sealing ring 17 for a shaft is installed in the fourth annular groove. A third sealing ring 20 is arranged between the guide vane sleeve 5 and the outer water distribution ring 10, and the third sealing ring 20 is generally an O-shaped sealing ring to enhance the sealing property between the outer water distribution ring 10 and the bottom of the guide vane sleeve 5.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The utility model provides a hydroelectric set stator spindle nose collection device that leaks which characterized in that: the guide vane structure is characterized by comprising a guide vane pivot (1), a guide vane arm (2) is arranged outside the guide vane pivot (1) and close to the end part of the guide vane pivot (1), the guide vane pivot (1) is provided with a boss (3), a joint bearing (4) is clamped between the guide vane arm (2) and the boss (3), a guide vane sleeve (5) is arranged outside the joint bearing (4), a water drainage groove (6) is formed in the concave part in the middle of the outer ring of the joint bearing (4), the water drainage groove (6) is used for collecting water leakage at the guide vane pivot (1), and a water collection cover (8) is arranged outside the guide vane sleeve (5);
the lowest part of the guide vane sleeve (5) is provided with a drain hole (7), and the drain hole (7) is communicated with the drain groove (6).
2. The water leakage collecting device for the guide vane shaft head of the water turbine generator set according to claim 1, which is characterized in that: the water collecting cover (8) is provided with a flushing hole (9), and the flushing hole (9) is communicated with a gap between the water collecting cover (8) and the guide vane sleeve (5).
3. The water leakage collecting device for the guide vane shaft head of the water turbine generator set according to claim 1, which is characterized in that: an outer water distribution ring (10) is further mounted outside the guide vane pivot (1), and a sealing sleeve (11) is mounted between the outer water distribution ring (10) and the boss (3).
4. The water leakage collecting device for the guide vane shaft head of the water turbine generator set according to claim 3, which is characterized in that: and a YX-shaped sealing ring (12) for a shaft is arranged between the sealing sleeve (11) and the guide vane pivot (1).
5. The water leakage collecting device for the guide vane shaft head of the water turbine generator set according to any one of claims 1 to 4, characterized in that: and a V-shaped sealing ring (13) is arranged between the outer ring of the joint bearing (4) and the guide vane arm (2).
6. The water leakage collecting device for the guide vane shaft head of the water turbine generator set according to claim 5, is characterized in that: guide vane sleeve (5) and be close to first annular has been seted up to joint bearing (4) one side, install first sealing washer (14) in the first annular.
7. The water leakage collecting device for the guide vane shaft head of the water turbine generator set according to claim 1, which is characterized in that: it is provided with second annular and third annular in cover (8) to catchment, in the second annular with install second sealing washer (15) and dust ring (16) in the third annular respectively.
8. The water leakage collecting device for the guide vane shaft head of the water turbine generator set according to claim 7, is characterized in that: it just is located to catchment in cover (8) the second annular groove with be provided with the fourth annular between the third annular groove, install axle rotary seal (17) in the fourth annular.
9. The water leakage collecting device for the guide vane shaft head of the water turbine generator set according to claim 1, which is characterized in that: end cover (18) are installed through bolt (19) to stator pivot (1) tip, bolt (19) with be provided with combination seal ring between end cover (18).
10. The water leakage collecting device for the guide vane shaft head of the water turbine generator set according to claim 5, is characterized in that: and a third sealing ring (20) is arranged between the guide vane sleeve (5) and the outer water distribution ring (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110907516.4A CN113803202B (en) | 2021-08-09 | Water leakage collecting device for guide vane shaft head of hydroelectric generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110907516.4A CN113803202B (en) | 2021-08-09 | Water leakage collecting device for guide vane shaft head of hydroelectric generating set |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113803202A true CN113803202A (en) | 2021-12-17 |
| CN113803202B CN113803202B (en) | 2024-05-14 |
Family
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115779322A (en) * | 2022-12-26 | 2023-03-14 | 浙江龙鼎消防器材有限公司 | Stable form fire control shower nozzle frame |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4277221A (en) * | 1976-04-22 | 1981-07-07 | Dominion Engineering Works Limited | Wicket gate bearing seal |
| JPH03206366A (en) * | 1990-01-08 | 1991-09-09 | Hitachi Ltd | Sealing water construction of bearing part for fluid machine |
| CN203614307U (en) * | 2013-09-27 | 2014-05-28 | 怀化沅江电力开发有限责任公司洪江水力发电厂 | Water turbine guide vane outer shaft sleeve with multi-stage waterstop seal |
| CN108005835A (en) * | 2018-01-25 | 2018-05-08 | 东方电气集团东方电机有限公司 | A kind of tubular turbine guide vane supporting and regulating device |
| CN207513728U (en) * | 2017-09-30 | 2018-06-19 | 湖南云箭集团有限公司 | A kind of wicket gate seal device of tubular turbine |
| CN110285073A (en) * | 2019-06-27 | 2019-09-27 | 广州市昕恒泵业制造有限公司 | High reliability immersible pump |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4277221A (en) * | 1976-04-22 | 1981-07-07 | Dominion Engineering Works Limited | Wicket gate bearing seal |
| JPH03206366A (en) * | 1990-01-08 | 1991-09-09 | Hitachi Ltd | Sealing water construction of bearing part for fluid machine |
| CN203614307U (en) * | 2013-09-27 | 2014-05-28 | 怀化沅江电力开发有限责任公司洪江水力发电厂 | Water turbine guide vane outer shaft sleeve with multi-stage waterstop seal |
| CN207513728U (en) * | 2017-09-30 | 2018-06-19 | 湖南云箭集团有限公司 | A kind of wicket gate seal device of tubular turbine |
| CN108005835A (en) * | 2018-01-25 | 2018-05-08 | 东方电气集团东方电机有限公司 | A kind of tubular turbine guide vane supporting and regulating device |
| CN110285073A (en) * | 2019-06-27 | 2019-09-27 | 广州市昕恒泵业制造有限公司 | High reliability immersible pump |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115779322A (en) * | 2022-12-26 | 2023-03-14 | 浙江龙鼎消防器材有限公司 | Stable form fire control shower nozzle frame |
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