CN115030115A - Hydraulic operation valve system capable of replacing tail gate chamber gate and headstock gear of pumped storage power station - Google Patents
Hydraulic operation valve system capable of replacing tail gate chamber gate and headstock gear of pumped storage power station Download PDFInfo
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- CN115030115A CN115030115A CN202210712588.8A CN202210712588A CN115030115A CN 115030115 A CN115030115 A CN 115030115A CN 202210712588 A CN202210712588 A CN 202210712588A CN 115030115 A CN115030115 A CN 115030115A
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- 238000003860 storage Methods 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 43
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 238000007789 sealing Methods 0.000 claims description 8
- 238000000605 extraction Methods 0.000 claims description 7
- 239000011435 rock Substances 0.000 claims description 3
- 238000009412 basement excavation Methods 0.000 abstract description 9
- 238000011144 upstream manufacturing Methods 0.000 description 9
- 210000004907 gland Anatomy 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 238000005086 pumping Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008233 hard water Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 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
- 230000008092 positive effect Effects 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
- E02B8/04—Valves, slides, or the like; Arrangements therefor; Submerged sluice gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
- E02B7/20—Movable barrages; Lock or dry-dock gates
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
- E02B9/02—Water-ways
- E02B9/06—Pressure galleries or pressure conduits; Galleries specially adapted to house pressure conduits; Means specially adapted for use therewith, e.g. housings, valves, gates
-
- 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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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Barrages (AREA)
Abstract
The invention provides a hydraulic operation valve system capable of replacing a tail gate chamber gate and a hoist of a pumped storage power station, which comprises a flow passage valve body, wherein the lower part of the flow passage valve body is provided with a closed pressurizing cavity positioned below a flow passage, the inside of the flow passage valve body is movably connected with a gate valve plate, the gate valve plate comprises a water seal structure arranged at the bottom, the closed pressurizing cavity can contain a gate valve plate, and the bottom of the closed pressurizing cavity is externally connected with a vacuumizing device, a hydraulic pressurizing system and a drainage and pressure relief system. The invention can greatly reduce the excavation height of the tail gate chamber, reduce the work load and improve the reliability of the equipment.
Description
Technical Field
The invention relates to the technical field of pumped storage power stations, in particular to a hydraulic operation valve system capable of replacing a tail gate chamber gate and a hoist of a pumped storage power station.
Background
With the development of new energy technology, a large number of pumped storage power stations are built, a tail gate system of a pumped storage power station is an important component of the power station, and metal structural equipment of the tail gate system comprises an accident gate, a gate slot, a hydraulic hoist, a bridge maintenance machine, a water filling system, a gas filling and exhausting system and the like according to the common arrangement. The excavation height of the tail gate chamber is determined by the gate height, the door opening height, the length of the short pull rod, the height of the bridge maintenance machine and the length of the oil cylinder of the hydraulic hoist. This arrangement has the following drawbacks: 1. the excavation height of the tail gate chamber is high, and the excavation engineering quantity is large; 2. the gate is suspended above the orifice at ordinary times, so that the risk of falling is caused; 3. the hydraulic hoist has large capacity and high investment; 4. the indoor arrangement of the whole tail gate chamber is not tidy; 5. the installation technology is difficult to realize and the installation workload is large.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a hydraulic operation valve system capable of replacing a tail lock chamber gate and a hoist of a pumped storage power station. The invention can greatly reduce the excavation height of the tail gate chamber, reduce the work load and improve the reliability of the equipment.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the utility model provides a can replace hydraulic power operation valve system of pumped storage power station tail lock chamber gate and headstock gear which characterized in that: the overflow valve comprises an overflow valve body, wherein the lower part of the overflow valve body is provided with an airtight pressurizing cavity below a flow channel, the inside of the overflow valve body is movably connected with a gate valve plate, the gate valve plate comprises a water seal structure arranged at the bottom, the airtight pressurizing cavity can contain the gate valve plate, the bottom of the airtight pressurizing cavity is externally connected with a vacuumizing device, a water pressure pressurizing system and a drainage pressure relief system, and a hydraulic hoist is not arranged above the gate valve plate for starting and stopping.
And further: the bottom of the closed pressurizing cavity is connected with a vacuumizing device through a vacuumizing steel pipe, the bottom of the closed pressurizing cavity is connected with a drainage pressure relief system through a drainage steel pipe, and the bottom of the closed pressurizing cavity is connected with a water pressure pressurizing system through a pressurizing steel pipe.
Further: the gate valve plate comprises a water retaining door plate, and a piston body structure is arranged on the bottom surface of the water retaining door plate; the bottom of the closed pressurizing cavity is provided with a supporting block matched with the piston body structure; the bottom side of the water retaining door plate is provided with the water seal structure.
And further: the overflowing valve body comprises an upper valve body and a lower valve body which are integrally arranged, the upper valve body is arranged on rock walls around the flow channel, the closed pressurizing cavity is located in the lower valve body, the top of the upper valve body is connected with the waist box body, and the top of the waist box body is provided with a top cover structure.
And further: the piston body structure comprises a gland, a sealing assembly and a piston body, wherein the piston body is connected with the bottom surface of the water-retaining door plate, the gland is arranged at the bottom of the piston body, and the sealing assembly is correspondingly arranged on two sides of the piston body.
Further: an upper limiting device is arranged on the waist box body.
Further: and a guide plate is arranged at the top of the water retaining door plate.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the invention greatly reduces the excavation height of the tail lock chamber, reduces the tunnel excavation engineering quantity (the tunnel excavation quantity of the installation height of the hydraulic hoist is reduced, and the tunnel excavation quantity of the long dragon mountain pumped storage tail lock chamber can be reduced by about 9000 cubic meter), increases the operation safety of the gate, and avoids the falling risk that the gate is hung above an orifice when being leveled; a hydraulic hoist is cancelled, and a hydraulic pressure pressurizing system and a drainage pressure relief system perform opening and closing actions of a gate valve plate, so that the equipment investment amount is greatly reduced; the tidiness of the arrangement in the tail gate chamber is improved (the oil cylinder equipment of a hydraulic hoist in the gate chamber is cancelled), and the added equipment related to a vacuumizing system and a pressurizing and pressure releasing system is concentrated in the room of the original hydraulic hoist operation chamber); furthermore, the equipment is changed into the sizing complete equipment, all the precision is ensured by factory manufacturing, the reliability of the equipment can be greatly improved, the field installation difficulty and the engineering quantity are reduced, and a plurality of original works needing field welding and assembling are transferred to a factory to be finished.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a sectional view taken along line A-A of FIG. 1;
FIG. 3 is a schematic view of the gate valve plate in a fully open position according to the present invention;
FIG. 4 is a cross-sectional view taken along line C-C of FIG. 1;
FIG. 5 is a sectional view taken along line B-B of FIG. 1;
fig. 6 is a partially enlarged view of a portion a in fig. 2.
Reference numerals: 1-a flow channel; 2-sealing the pressurizing cavity; 3-a gate valve plate; 4-an overflow valve body; 5-water seal structure; 6-vacuum pumping equipment; 7-a drainage pressure relief system; 8-vacuum pumping the steel pipe; 9-a drainage steel pipe; 10-pressurizing the steel pipe; 11-water retaining door plate; 12-a piston body construction; 13-a support block; 14-an upper valve body; 15-lower valve body; 16-waist box body; 17-a top cover structure; 18-a gland; 19-a sealing assembly; 20-a piston body; 21-an upper stop device; 22-access manhole; 23-charging and discharging valves; 24-a baffle; 25-channel filling level pressure system.
Detailed Description
In order that those skilled in the art will better understand the technical solutions of the present invention, the following description of the preferred embodiments of the present invention is provided in conjunction with the specific examples, but it should be understood that the drawings are for illustrative purposes only and should not be construed as limiting the present invention; for the purpose of better illustrating the present embodiments, certain elements of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the invention.
The invention is further described with reference to the following figures and examples, which are not to be construed as limiting the invention.
As shown in fig. 1 to 6, a hydraulic operation valve system capable of replacing a tail gate chamber gate and a hoist of a pumped storage power station comprises a flow passage valve body 4, wherein the lower part of the flow passage valve body 4 is provided with a closed pressurizing cavity 2 below a flow passage 1, the inside of the flow passage valve body 4 is movably connected with a gate valve plate 3, the gate valve plate 3 comprises a water seal structure 5 arranged at the bottom, the closed pressurizing cavity 2 can contain the gate valve plate 3, the bottom of the closed pressurizing cavity 2 is externally connected with a vacuumizing device 6, a water pressure pressurizing system and a drainage pressure relief system 7, and a hydraulic hoist is not arranged above the gate valve plate 3 for starting and stopping.
The bottom of the closed pressurizing cavity 2 is connected with a vacuumizing device 6 through a vacuumizing steel pipe 8, the closed pressurizing cavity 2 is kept in a vacuum state through the vacuumizing device 6, the bottom of the closed pressurizing cavity 2 is connected with a drainage and pressure relief system 7 through a drainage steel pipe 9, and the bottom of the closed pressurizing cavity 2 is connected with a water pressure pressurizing system through a pressurizing steel pipe 10. The related vacuum pumping equipment is centralized in a room of an operation room of the original hydraulic hoist.
The drainage and pressure relief system 7 is integrated by a ball valve, a pressure switch, a pressure sensor, a pressure reducing valve, an electric ball valve, a pipeline, a flange and the like.
The hydraulic pressure pressurizing system is integrated by a plurality of ball valves, a ball valve, a plurality of pressure gauges, a plurality of check valves, a pressure switch, a plurality of booster pumps, a pressure sensor, a pressure reducing valve, a flowmeter, an automatic exhaust valve, an electric ball valve, a pipeline, a flange and the like, and the devices are intensively arranged in a hydraulic opening and closing operation device room.
And a guide plate 24 is arranged on the top of the water-retaining door plate 11.
The gate valve plate 3 comprises a water-retaining door plate 11, the water-retaining door plate 11 is formed by welding steel plates, a piston body structure 12 is arranged on the bottom surface of the water-retaining door plate 11, and the piston body structure 12 can move up and down in the closed pressure filling cavity 2; the bottom of the closed pressurizing cavity 2 is provided with a supporting block 13 matched with the piston body structure 12, the supporting block 13 is used for supporting the gate valve plate 3 at the full-open position, a guide plate 24 at the top of the gate valve plate 3 is ensured to be flush with the bottom plate of the flow channel 1, and a certain space is reserved at the bottom of the closed pressurizing cavity 2; the bottom side of the water retaining door plate 11 is provided with the water seal structure 5, and the water seal structure 5 can be a rubber water stop structure or a hard water stop structure.
Through the vacuum-pumping equipment 6, the water pressure pressurizing system and the water drainage and pressure relief system 7, the up-and-down flexible movement of the piston body structure 12 at the bottom of the brake valve plate 3 and no air in the closed pressurizing cavity 2 are ensured. The hydraulic pressure pressurization system is used for pushing the gate valve plate 3 to rise to close the valve, and the drainage pressure relief system 7 is used for descending the gate valve plate 3 to open the valve.
The overflow valve body 4 comprises an upper valve body 14 and a lower valve body 15 which are integrally arranged, the upper valve body 14 is arranged on the rock wall around the runner 1, the airtight pressurizing cavity 2 is arranged in the lower valve body 15, the top of the upper valve body 14 is connected with the waist box body 16, the upper part of the waist box body 16 is connected with the top cover through bolts and sealed, the top of the waist box body 16 is provided with a top cover structure 17, and the top cover structure 17 is provided with an overhaul inlet. The overflowing valve body 4 and the waist box body 16 can be butted into a whole at the installation site; and a stainless steel water seal seat is arranged on the upstream side of the overflowing valve body 4.
The overflowing valve body is formed by welding a peripheral steel plate, a longitudinal partition plate and a beam system structure, a bottom steel plate, and a longitudinal partition plate and a beam system structure. The upper valve body 14 is provided with a hollow square-shaped form and is provided with a front extending structure and a rear extending structure, and the front extending structure and the rear extending structure are respectively connected to the upstream and the downstream of the pressure pipeline of the flow channel 1; the lower valve body 15 is configured as a rectangular body having an upper portion connected to the upper valve body 14. According to this setting can optimize the influence of runner rivers disturbance to gate valve plate 3 to can avoid the unexpected whereabouts of gate valve plate 3 completely, because locate at manger plate door plant 11 when full open position, manger plate door plant 11 is located and is exempted from the influence of runner rivers disturbance in lower part valve body 15, when manger plate door plant 11 locates to close the manger plate position entirely, manger plate door plant 11 friction resistance under the water pressure effect is far more than the dead weight, can ensure not to fall from sliding.
The piston body structure 12 comprises a gland 18, a sealing assembly 19 and a piston body 20, wherein the piston body 20 is connected with the bottom surface of the water-retaining door plate 11, the gland 18 is arranged at the bottom of the piston body 20, and the sealing assembly 19 is correspondingly arranged at two sides of the piston body 20.
The waist box body 16 is provided with an upper limiting device 21. The upper stop 21 ensures that the gate valve 8 can be in the fully closed position.
And the runner 1 is provided with an air charging and discharging valve 23, a runner water charging and horizontal pressure system 25 and a pressure relief system. The runner water filling and pressure equalizing system 25 is used for equalizing the pressure of the front runner 1 and the rear runner 1, the air filling and exhausting valve 23 is used for air filling and exhausting of the runners 1, and the pressure relief system is used for pressure relief of the closed pressure filling cavity 2.
Under the condition that the unit on the upstream side of the flow channel 1 is closed, water on the upstream side of the flow channel 1 can be drained through a water collecting well arranged in a connected unit factory building, and then the unit and the steel pipe on the upstream side of the flow channel 1 are overhauled and maintained. When the water is drained, the air charging and discharging valve 23 is automatically opened to supply air to the upstream side of the flow passage 1. After the overhaul and maintenance of the unit and the steel pipe on the upstream side of the flow channel 1 are finished, the flow channel water filling level pressure system 25 is opened to fill water on the downstream side of the flow channel 1 into the upstream side of the flow channel 1, and at the moment, the gas filling and discharging valve 23 is automatically opened to discharge gas in the cavity on the upstream side of the flow channel 1 out of the invention; after the water pressure of the front and rear flow channels 1 of the device is pressed flatly, the drainage and pressure relief system 7 is opened to drain the water in the closed pressurizing cavity 2 to the water collecting well of the valve chamber, so that the gate valve plate 3 falls in the closed pressurizing cavity 2 to keep the flow channels 1 smooth.
The invention is arranged at the position where the gate and the hoist of the tail gate chamber of the pumped storage power station are originally arranged in the runner 1 and is used for cutting off the water flow of the runner 1. When the runner 1 overflows, the gate valve plate 3 falls in the closed pressurizing cavity 2 to keep the runner 1 smooth; when water flow of the flow channel 1 needs to be cut off, the water pressure pressurizing system is opened to fill water into the closed pressurizing cavity 2, and the gate valve plate 3 is pushed to rise to a closed position through water pressure to cut off overflowing of the flow channel 1.
According to the description of the invention and the attached drawings, a person skilled in the art can easily make or use the hydraulically operated valve system of the invention which can replace the tail gate chamber gate and the hoist of the extraction power station and can produce the positive effects recorded in the invention.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (7)
1. The utility model provides a can replace water conservancy operation valve system of pump storage power station tail lock chamber gate and headstock gear which characterized in that: including overflowing valve body (4), the lower part of overflowing valve body (4) has airtight pressure chamber (2) that is in runner (1) below, overflows valve body (4) inside swing joint brake valve board (3), and brake valve board (3) are including setting up water seal structure (5) in the bottom, and airtight pressure chamber (2) can holding brake valve board (3), the external evacuation equipment (6), water pressure pressurization system and drainage pressure release system (7) in bottom of airtight pressure chamber (2), brake valve board (3) top does not set up hydraulic hoist and close.
2. The hydraulically operated valve system of a replaceable extraction storage power station tail gate chamber gate and hoist of claim 1, wherein: the bottom of the closed pressurizing cavity (2) is connected with a vacuumizing device (6) through a vacuumizing steel pipe (8), the bottom of the closed pressurizing cavity (2) is connected with a drainage and pressure relief system (7) through a drainage steel pipe (9), and the bottom of the closed pressurizing cavity (2) is connected with a hydraulic pressurizing system through a pressurizing steel pipe (10).
3. The hydraulically operated valve system of a replaceable extraction storage power station tail gate chamber gate and hoist of claim 1, wherein: the gate valve plate (3) comprises a water-retaining door plate (11), and a piston body structure (12) is arranged on the bottom surface of the water-retaining door plate (11); the bottom of the closed pressurizing cavity (2) is provided with a supporting block (13) matched with the piston body structure (12); the bottom side of the water retaining door panel (11) is provided with the water seal structure (5).
4. The hydraulically operated valve system of claim 1 in the form of a replaceable extraction and storage power station tail gate chamber gate and hoist, wherein: the overflowing valve body (4) comprises an upper valve body (14) and a lower valve body (15) which are integrally arranged, the upper valve body (14) is arranged on the rock wall around the flow channel (1), the airtight pressurizing cavity (2) is located in the lower valve body (15), the top of the upper valve body (14) is connected with the waist box body (16), and the top of the waist box body (16) is provided with a top cover structure (17).
5. The hydraulically operated valve system of the replaceable extraction storage power station tail gate chamber gate and hoist of claim 3, wherein: the piston body structure (12) comprises a pressing cover (18), a sealing assembly (19) and a piston body (20), the piston body (20) is connected with the bottom surface of the water-retaining door plate (11), the pressing cover (18) is arranged at the bottom of the piston body (20), and the sealing assembly (19) is correspondingly arranged on two sides of the piston body (20).
6. The hydraulically operated valve system of claim 4 in the form of a replaceable extraction and storage power station tail gate chamber gate and hoist, wherein: an upper limiting device (21) is arranged on the waist box body (16).
7. The hydraulically operated valve system of the replaceable extraction storage power station tail gate chamber gate and hoist of claim 3, wherein: and a guide plate (24) is arranged at the top of the water-retaining door plate (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210712588.8A CN115030115B (en) | 2022-06-22 | 2022-06-22 | Hydraulic operation valve system capable of replacing gate of tail gate chamber of pumping and storing station and hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210712588.8A CN115030115B (en) | 2022-06-22 | 2022-06-22 | Hydraulic operation valve system capable of replacing gate of tail gate chamber of pumping and storing station and hoist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115030115A true CN115030115A (en) | 2022-09-09 |
| CN115030115B CN115030115B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210712588.8A Active CN115030115B (en) | 2022-06-22 | 2022-06-22 | Hydraulic operation valve system capable of replacing gate of tail gate chamber of pumping and storing station and hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115030115B (en) |
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| CN211472429U (en) * | 2019-08-07 | 2020-09-11 | 中国电建集团华东勘测设计研究院有限公司 | Tail sluice gate arrangement structure of pumped storage power station tail lock chamber |
| CN213571809U (en) * | 2020-10-30 | 2021-06-29 | 黄河勘测规划设计研究院有限公司 | Diversion tunnel inlet tower frame bypass structure for ecological drainage |
| CN113062280A (en) * | 2021-03-08 | 2021-07-02 | 长江勘测规划设计研究有限责任公司 | Arc-shaped valve cap door device opened and closed by water power and using method thereof |
| CN114182697A (en) * | 2021-12-09 | 2022-03-15 | 湖南城头山水工机械制造有限公司 | High leakproofness intelligence measurement and control aluminum alloy gate |
| CN217923434U (en) * | 2022-06-22 | 2022-11-29 | 中国电建集团华东勘测设计研究院有限公司 | Hydraulic operation valve system capable of replacing tail gate chamber gate and headstock gear of pumped storage power station |
-
2022
- 2022-06-22 CN CN202210712588.8A patent/CN115030115B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5222833A (en) * | 1991-05-08 | 1993-06-29 | Northeastern University | Shutter for hydro-pneumatic current flow harnessing system |
| CN103088794A (en) * | 2013-02-04 | 2013-05-08 | 黄河勘测规划设计有限公司 | Connecting structure between rapid gate hydraulic headstock gear and sealing gate groove |
| CN109853488A (en) * | 2019-02-01 | 2019-06-07 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of water sealing method and device of tail water cooler down-the-hole bulkhead gate |
| CN211472429U (en) * | 2019-08-07 | 2020-09-11 | 中国电建集团华东勘测设计研究院有限公司 | Tail sluice gate arrangement structure of pumped storage power station tail lock chamber |
| CN213571809U (en) * | 2020-10-30 | 2021-06-29 | 黄河勘测规划设计研究院有限公司 | Diversion tunnel inlet tower frame bypass structure for ecological drainage |
| CN113062280A (en) * | 2021-03-08 | 2021-07-02 | 长江勘测规划设计研究有限责任公司 | Arc-shaped valve cap door device opened and closed by water power and using method thereof |
| CN114182697A (en) * | 2021-12-09 | 2022-03-15 | 湖南城头山水工机械制造有限公司 | High leakproofness intelligence measurement and control aluminum alloy gate |
| CN217923434U (en) * | 2022-06-22 | 2022-11-29 | 中国电建集团华东勘测设计研究院有限公司 | Hydraulic operation valve system capable of replacing tail gate chamber gate and headstock gear of pumped storage power station |
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| Publication number | Publication date |
|---|---|
| CN115030115B (en) | 2024-01-26 |
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