CN108677889B - Gate wellhead blocking method and hinged cover plate used by same - Google Patents
Gate wellhead blocking method and hinged cover plate used by same Download PDFInfo
- Publication number
- CN108677889B CN108677889B CN201810778110.9A CN201810778110A CN108677889B CN 108677889 B CN108677889 B CN 108677889B CN 201810778110 A CN201810778110 A CN 201810778110A CN 108677889 B CN108677889 B CN 108677889B
- Authority
- CN
- China
- Prior art keywords
- cover plate
- plate
- gate
- hinged
- water seal
- Prior art date
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Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000000903 blocking effect Effects 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 90
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 45
- 239000010959 steel Substances 0.000 claims abstract description 45
- 238000004891 communication Methods 0.000 claims description 19
- 238000003825 pressing Methods 0.000 claims description 16
- 230000000694 effects Effects 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000003466 welding Methods 0.000 description 6
- 230000000149 penetrating effect Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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
- E02B7/26—Vertical-lift 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
Abstract
The invention discloses a gate wellhead blocking method and a hinged cover plate used by the gate wellhead blocking method. The method adopts a reusable hinged cover plate to replace the existing welded cover plate; a hinged support connecting plate is welded around the hinged cover plate, and a group of fixed hinged supports corresponding to the positions of the hinged support connecting plates are welded on a rectangular annular steel plate at the gate wellhead; the hinged support connecting plates around the hinged cover plate are hinged with the corresponding fixed hinged support on the rectangular annular steel plate through the pin shafts, so that the gate wellhead can be plugged. The plugging device is simple and quick in plugging operation, and when the plugging is removed, the hinged cover plate can be rotated 90 degrees to stand on the operation platform only by removing part of the pin shafts. The hinged cover plate can be reused, and the investment cost is reduced. During construction diversion, if the diversion tunnel has accidents, the process of blocking the gate by the diversion tunnel and blocking water is very rapid, so that the accidents can be effectively prevented from being enlarged.
Description
Technical Field
The invention relates to a gate wellhead blocking method and a hinged cover plate used by the gate wellhead blocking method, and belongs to the technical field of metal structures of hydraulic and hydroelectric engineering.
Background
When the overflow water level is too high in the flood season, water can upwelle from the diversion tunnel shutoff gate wellhead to submerge the hoist platform, leads to the hoist to damage, can even cause engineering accidents such as the grotto collapse when serious. In order to prevent flood season water flow from the hoist platform, a cover plate is prepared in advance, the periphery of the cover plate is welded with a rectangular annular steel plate which is buried in advance at the gate wellhead before the flood season comes, and the upwelling water head is blocked by the cover plate. In order to completely block the upwelling water head, a four-side girth welding mode is adopted when the cover plate is welded, and the welding seams must be completely and continuously welded along the periphery of the cover plate. When the flood season is over, the gate needs to be opened for water storage, the cover plate welded before is removed, and then the diversion tunnel blocking gate is lowered into the gate slot. When the cover plate is removed, all welding seams around the cover plate need to be removed, and then the cover plate can be removed. Because the continuous welding seams are adopted for preventing the periphery of the water leakage cover plate when the cover plate is welded before, the workload of removing the welding seams is very large and the time consumption is very long when the cover plate is removed. And the removed cover plate is not reusable due to larger damage, and needs to be manufactured again when being reused next time. Therefore, the operation process of the prior art is very troublesome, has large investment, and has the defects to be further perfected.
Disclosure of Invention
The invention aims to provide a gate wellhead plugging method and a hinged cover plate which are simple in structure, reusable, reliable in working performance and low in manufacturing and using cost, so as to overcome the defects of the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the invention relates to a gate wellhead plugging method, which adopts a reusable hinged cover plate to replace the existing welded cover plate; a hinged support connecting plate is welded around the hinged cover plate, and a group of fixed hinged supports corresponding to the positions of the hinged support connecting plates are welded on a rectangular annular steel plate at the gate wellhead; the hinged support connecting plates around the hinged cover plate are hinged with the corresponding fixed hinged support on the rectangular annular steel plate through the pin shafts, so that the gate wellhead can be plugged.
In the method for plugging the gate wellhead, the hinged cover plate is sealed with the water stop seat plate on the rectangular annular steel plate of the gate wellhead through the pressurizing type omega water seal; the bottom of the pressurizing type omega water seal is connected with a panel of the hinged cover plate through an outer supporting plate and an inner supporting plate, and a communication hole is arranged on the inner supporting plate; the upward water flushing head enters a cavity between the inner supporting plate and the outer supporting plate through the communication hole so that the pressurizing type omega water seal protrudes outwards and is tightly pressed on the top surface of the water stopping seat plate; the higher the water-filling head is, the better the water-stopping effect of the pressurizing type omega water seal is.
In the plugging method of the gate wellhead, the top surface of the hinged cover plate is provided with a group of lifting lug plates, and the lifting lug plates are connected with a steel wire rope fixing seat fixed on the side wall through steel wire ropes; when the sluice is filled, the pin shafts on the three sides of the hinged cover plate are removed, the hinged cover plate is pulled up through a steel wire rope and rotated by 90 degrees to open the gate wellhead, and the diversion tunnel plugging gate can be lowered into the gate slot through the gate wellhead.
The hinged cover plate for plugging the gate wellhead comprises a rectangular frame formed by cross beams and vertical beams; a group of hinged support connecting plates are respectively arranged on the outer sides of four frames of the rectangular frame, a panel is arranged on the bottom surface of the rectangular frame, and a water seal assembly is arranged on the bottom surface of the panel.
In the hinged cover plate, the cross beams and the vertical beams are I-shaped steel beams; the rectangular central line frame formed by the web central lines of the edge-most cross beams and the vertical beams corresponds to the rectangular central line frame of the water seal assembly.
In the hinged cover plate, the water seal assembly comprises a pressurizing type omega water seal, and the pressurizing type omega water seal is connected with the panel through a group of bolts; an outer supporting plate and an inner supporting plate are arranged between the pressurizing type omega water seal and the panel, a cavity is arranged between the outer supporting plate and the inner supporting plate, a communication hole is arranged on the inner supporting plate, and the communication hole is communicated with the cavity; an inner pressing plate corresponding to the inner supporting plate and an outer pressing plate corresponding to the outer supporting plate are arranged on the other surface of the pressurizing type omega water seal; bolts penetrate through the outer pressing plate, the pressurizing type omega water seal and the outer supporting plate to be connected with the panel; bolts penetrate through the inner pressing plate, the pressurizing type omega water seal and the inner supporting plate to be connected with the panel.
In the hinged cover plate, the bolt avoids the communication hole on the inner supporting plate and is connected with the panel.
In the hinged cover plate, a group of lifting lug plates which are symmetrically arranged are arranged on the top surface of the rectangular frame of the hinged cover plate.
Compared with the prior art, the hinged cover plate adopts the pin shaft hinged fixing mode, the assembly and the disassembly are completed by penetrating and removing the pin shaft, the operation is convenient and less in time consumption in the field by adopting the four-edge full welding mode, the construction is effectively convenient, if the diversion tunnel has accidents during the construction diversion, the hinged cover plate can be quickly removed in time to prevent the accidents from expanding, the hinged cover plate is removed to be basically free from damage, the hinged cover plate can be repeatedly used for multiple times, and the investment is effectively saved; lifting lug plates are symmetrically arranged on the upper portion of the hinged cover plate, corresponding steel wire rope fixing seats are arranged on the side walls of the upper portion of the gate shaft and the lifting lug plates, when the pin shafts of the hinged cover plate are dismounted and fixed on the hinged support, pin shafts on the sides of the steel wire rope fixing seats can be reserved, after the steel wire rope is connected with the lifting lug plates, the cover plate is turned to a vertical state by adopting manpower or temporary hoisting equipment after penetrating through the steel wire rope fixing seats, the blocking gate of the diversion tunnel is not influenced and is lowered into the gate shaft, and labor force can be saved; the hinged cover plate is provided with a water seal assembly for sealing, the water seal seat plate is made of stainless steel, the pressurizing type omega water seal is in good contact with the water seal seat plate, and the higher the water head is, the more closely the pressurizing type omega water seal is in contact with the water seal seat plate, so that the water seal effect is better. The inner supporting plate is internally provided with the communication hole, so that water can enter the pressurized omega water seal inner cavity through the communication hole, and the water seal head is pressed from the inside to tightly contact with the water stop seat plate, thereby effectively ensuring the water stop effect of the hinged cover plate.
The invention adopts a reusable hinged cover plate to replace the existing welded cover plate, and when flood season comes, the hinged support connecting plates around the cover plate are only required to be connected with the fixed hinged support on the rectangular annular steel plate at the gate wellhead through the pin shafts, and the upper water flushing head can be blocked by sealing connection between the pressurizing type omega water seal at the bottom surface of the hinged cover plate and the rectangular annular steel plate; after the flood season, the pin shafts on the three sides of the cover plate are removed, the cover plate is rotated by 90 degrees through the steel wire rope, and then the gate wellhead can be opened, so that the diversion tunnel plugging gate can be lowered into the gate slot without integrally removing the cover plate, the defects that the operation is troublesome, the cover plate cannot be reused, and the investment is large are well overcome.
Drawings
FIG. 1 is a schematic view of a method of the present invention in a water blocking state;
FIG. 2 is a schematic view of a method of the present invention for lowering a diversion tunnel closure gate;
FIG. 3 is a schematic structural view of a hinged lid plate;
fig. 4 is a schematic structural view of a rectangular annular steel plate.
Reference numerals illustrate: 1-diversion tunnel plugging gate, 2-gate well, 3-rectangular annular steel plate, 4-water stop seat plate, 5-fixed hinged support, 6-hinged cover plate, 7-panel, 8-beam, 9-vertical beam, 10-cavity, 11-hinged support connecting plate, 12-water seal assembly, 13-pressurizing type omega water seal, 14-bolt, 15-inner pressing plate, 16-outer pressing plate, 17-steel wire rope fixing seat, 18-steel wire rope, 19-outer supporting plate, 20-inner supporting plate, 21-communication hole, 22-pin shaft, 23-lifting lug plate and 24-side wall.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples.
According to the gate wellhead plugging method, as shown in fig. 1, a reusable hinged cover plate 6 is adopted to replace the existing welded cover plate; hinge base connecting plates 11 are welded around the hinge cover plate 6. Meanwhile, as shown in fig. 4, a group of fixed hinged supports 5 corresponding to the positions of the hinged support connecting plates 11 are welded on the rectangular annular steel plate 3 at the mouth of the gate shaft 2; the hinged support connecting plates 11 around the hinged cover plate 6 are hinged with the corresponding fixed hinged supports 5 on the rectangular annular steel plate 3 through the pin shafts 22, so that the gate well 2 can be plugged. The hinged cover plate 6 is sealed with a water stop seat plate 4 on a rectangular annular steel plate 3 at the mouth of the gate well 2 through a pressurizing type omega water seal 13; the bottom of the pressurizing type omega water seal 13 is connected with the panel 7 of the hinged cover plate 6 through an outer supporting plate 19 and an inner supporting plate 20, and a communication hole 21 is arranged on the inner supporting plate 20; the upper water gushing head enters the cavity 10 between the inner supporting plate 20 and the outer supporting plate 19 through the communication hole 21 so that the pressurizing type omega water seal 13 protrudes outwards and is tightly pressed on the top surface of the water stopping seat plate 4; the higher the water-filling head is, the better the water-stopping effect of the pressurizing type omega water seal 13 is. The top surface of the hinged cover plate 6 is provided with a group of lifting lug plates 23, and the lifting lug plates 23 are connected with a steel wire rope fixing seat 17 fixed on a side wall 24 through steel wire ropes 18. When the sluice is used for storing water, as shown in fig. 2, the pin shafts 22 on three sides of the hinged cover plate 6 are removed, the hinged cover plate 6 is pulled up and rotated by 90 degrees through the steel wire rope 18 to open the gate well 2, and the diversion tunnel plugging gate 1 can be lowered into a gate slot through the gate well 2.
The hinged cover plate for plugging the gate wellhead of the invention for the method comprises a rectangular frame consisting of a cross beam 8 and a vertical beam 9 as shown in figure 3; a group of hinged support connecting plates 11 are respectively arranged on the outer sides of four frames of the rectangular frame, a panel 7 is arranged on the bottom surface of the rectangular frame, and a water seal assembly 12 is arranged on the bottom surface of the panel 7. The cross beams 8 and the vertical beams 9 are I-shaped steel beams; the rectangular center line frame formed by the web center lines of the edge-most cross beams 8 and the vertical beams 9 corresponds to the rectangular center line frame of the water seal assembly 12. The water seal assembly 12 comprises a pressurizing type omega water seal 13, and the pressurizing type omega water seal 13 is connected with the panel 7 through a group of bolts 14; an outer support plate 19 and an inner support plate 20 are arranged between the pressurizing type omega water seal 13 and the panel 7, a cavity 10 is arranged between the outer support plate 19 and the inner support plate 20, a communication hole 21 is arranged on the inner support plate 20, and the communication hole 21 is communicated with the cavity 10; the other side of the pressurizing type omega water seal 13 is provided with an inner pressing plate 15 corresponding to the inner supporting plate 20 and an outer pressing plate 16 corresponding to the outer supporting plate 19; the bolts 14 pass through the outer pressing plate 16, the pressurizing type omega water seal 13 and the outer supporting plate 19 to be connected with the panel 7; the bolts 14 pass through the inner pressing plate 15, the pressurizing type omega water seal 13 and the inner supporting plate 20 to be connected with the panel 7. The bolts 14 are connected to the panel 7 so as to avoid the communication holes 21 in the inner support plate 20. The rectangular frame top surface of the hinged cover plate is provided with a set of symmetrically arranged lifting lug plates 23.
Examples
As shown in fig. 1 to 4, a sinking rectangular annular steel plate 3 is provided at the top of a gate well 2 of a diversion tunnel shutoff gate 1, the rectangular annular steel plate 3 has an L-shaped cross section, a water stop seat plate 4 arranged in a rectangular shape is provided on the top surface of the rectangular annular steel plate 3, and the water stop seat plate 4 is made of stainless steel plate material. The inner side surface of the rectangular annular steel plate 3 is welded with symmetrically arranged fixed hinge supports 5. Hinge support connecting plates 11 corresponding to the fixed hinge support 5 are arranged around the hinge cover plate 6, and the hinge support connecting plates 11 are connected with the rectangular annular steel plate 3 through pin shafts 22. The hinged cover plate 6 comprises a rectangular frame formed by a cross beam 8 and a vertical beam 9, and hinged support connecting plates 11 used for being connected with the fixed hinged support 5 are welded around the rectangular frame. The bottom surface of the rectangular frame is welded with the panel 7. The bottom surface of the panel 7 is provided with a water seal assembly 12; the water seal assembly 12 is of a rectangular structure, the water seal assembly 12 is tightly contacted with the water seal seat plate 4 on the rectangular annular steel plate 3, and the position and the shape of the water seal seat plate 4 correspond to those of the water seal assembly 12. The water seal assembly 12 comprises a pressurizing type omega water seal 13, and the pressurizing type omega water seal 13 is fixed on the panel 7 by penetrating through the water seal inner pressing plate 15 and the water seal outer pressing plate 16 through bolts 14; the center line of the pressurizing type omega water seal 13 corresponds to the center line of the two outer vertical beams 9 and the cross beam 8; the bottom surface of the panel 7 is provided with an outer supporting plate 19 and an inner supporting plate 20 which are arranged in a rectangular manner; the inner support plate 20 is provided with a communication hole 21; the hinged-support connecting plate 11 corresponds to the fixed hinged support 5 in position and is connected by a pin 22; the top surface of the hinged cover plate 6 is provided with a group of lifting lug plates 23 which are symmetrically arranged; a side wall 24 at the upper part of the gate well 2 is provided with a steel wire rope fixing seat 17 corresponding to the lifting lug plate 23 in position; when the hinged cover plate 6 is not needed after the flood season, as shown in fig. 2, the pin shafts 22 on one side of the steel wire rope fixing seat 17 can be reserved, the pin shafts 22 on the other three sides are removed, the steel wire rope 18 is used for connecting the lifting lug plates 23, and then the hinged cover plate 6 is turned to a vertical state by adopting manpower or temporary lifting equipment after penetrating through the steel wire rope fixing seat 17, so that the diversion tunnel plugging gate 1 is not influenced to be lowered into the gate well 2.
Claims (4)
1. A method for plugging a gate wellhead is characterized by comprising the following steps: the method adopts a reusable hinged cover plate to replace the existing welded cover plate; a hinged support connecting plate is welded around the hinged cover plate, and a group of fixed hinged supports corresponding to the positions of the hinged support connecting plates are welded on a rectangular annular steel plate at the gate wellhead; hinge seat connecting plates around the hinged cover plates are hinged with corresponding fixed hinge seats on the rectangular annular steel plates through pin shafts, so that the gate wellhead can be plugged; the hinged cover plate is sealed with a water stop seat plate on a rectangular annular steel plate at the gate wellhead through a pressurizing type omega water seal; the bottom of the pressurizing type omega water seal is connected with a panel of the hinged cover plate through an outer supporting plate and an inner supporting plate, and a communication hole is arranged on the inner supporting plate; the upward water flushing head enters a cavity between the inner supporting plate and the outer supporting plate through the communication hole so that the pressurizing type omega water seal protrudes outwards and is tightly pressed on the top surface of the water stopping seat plate; the higher the water-filling head is, the better the water-stopping effect of the pressurizing type omega water seal is; the top surface of the hinged cover plate is provided with a group of lifting lug plates, and the lifting lug plates are connected with a steel wire rope fixing seat fixed on the side wall through steel wire ropes; when the sluice is filled, the pin shafts on the three sides of the hinged cover plate are removed, the hinged cover plate is pulled up through a steel wire rope and rotated by 90 degrees to open the gate wellhead, and the diversion tunnel plugging gate can be lowered into the gate slot through the gate wellhead.
2. A hinged cover plate for plugging a gate wellhead for use in the method of claim 1, wherein: comprises a rectangular frame formed by a cross beam (8) and a vertical beam (9); a group of hinged support connecting plates (11) are respectively arranged at the outer sides of the four frames of the rectangular frame, a panel (7) is arranged at the bottom surface of the rectangular frame, and a water seal assembly (12) is arranged at the bottom surface of the panel (7); the cross beams (8) and the vertical beams (9) are I-shaped steel beams; the rectangular central line frame formed by the web central lines of the edge-most cross beams (8) and the vertical beams (9) corresponds to the rectangular central line frame of the water seal assembly (12); the water seal assembly (12) comprises a pressurizing type omega water seal (13), and the pressurizing type omega water seal (13) is connected with the panel (7) through a group of bolts (14); an outer supporting plate (19) and an inner supporting plate (20) are arranged between the pressurizing type omega water seal (13) and the panel (7), a cavity (10) is arranged between the outer supporting plate (19) and the inner supporting plate (20), a communication hole (21) is arranged on the inner supporting plate (20), and the communication hole (21) is communicated with the cavity (10); an inner pressing plate (15) corresponding to the inner supporting plate (20) and an outer pressing plate (16) corresponding to the outer supporting plate (19) are arranged on the other surface of the pressurizing type omega water seal (13); the bolts (14) penetrate through the outer pressing plate (16), the pressurizing type omega water seal (13) and the outer supporting plate (19) to be connected with the panel (7); the bolts (14) penetrate through the inner pressing plate (15), the pressurizing type omega water seal (13) and the inner supporting plate (20) to be connected with the panel (7).
3. The hinged cover plate for plugging a gate wellhead according to claim 2, wherein: the bolts (14) are connected with the panel (7) avoiding the communication holes (21) on the inner supporting plate (20).
4. The hinged cover plate for plugging a gate wellhead according to claim 2, wherein: the top surface of the rectangular frame formed by the cross beams (8) and the vertical beams (9) is provided with a group of lifting lug plates (23) which are symmetrically arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810778110.9A CN108677889B (en) | 2018-07-16 | 2018-07-16 | Gate wellhead blocking method and hinged cover plate used by same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810778110.9A CN108677889B (en) | 2018-07-16 | 2018-07-16 | Gate wellhead blocking method and hinged cover plate used by same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108677889A CN108677889A (en) | 2018-10-19 |
| CN108677889B true CN108677889B (en) | 2024-02-06 |
Family
ID=63814180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810778110.9A Active CN108677889B (en) | 2018-07-16 | 2018-07-16 | Gate wellhead blocking method and hinged cover plate used by same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108677889B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109403286A (en) * | 2018-12-10 | 2019-03-01 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of plugging device of tailrace tunnel bulkhead gate slot |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510524U (en) * | 1991-07-23 | 1993-02-12 | 日立造船株式会社 | Gate sealing device |
| JPH0860640A (en) * | 1994-08-12 | 1996-03-05 | Akio Iida | Water gate fitted on wall face |
| JPH11158852A (en) * | 1997-11-27 | 1999-06-15 | Ishikawajima Harima Heavy Ind Co Ltd | Gate |
| JP2004176328A (en) * | 2002-11-26 | 2004-06-24 | Akio Iida | Pneumatic type derricking gate |
| CN102518087A (en) * | 2011-12-07 | 2012-06-27 | 扬州众大水利机电设备制造有限公司 | Bottom gate of reservoir |
| CN202577243U (en) * | 2012-05-17 | 2012-12-05 | 中国水电顾问集团贵阳勘测设计研究院 | Turnover plate type plugging valve for diversion tunnel |
| CN203594006U (en) * | 2013-11-06 | 2014-05-14 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Sealing structure arranged in gate shaft body of diversion tunnel chamber |
| CN104060589A (en) * | 2014-06-19 | 2014-09-24 | 中国水利水电第十一工程局有限公司 | Flip sluice gate for sealing and blocking flow guide hole opening of hydropower station |
| CN206680969U (en) * | 2017-03-24 | 2017-11-28 | 中国电建集团贵阳勘测设计研究院有限公司 | It is a kind of to utilize the device that ecological flow is let out under existing closure gate |
| CN208668383U (en) * | 2018-07-16 | 2019-03-29 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of gate well head closure radial type cover board |
-
2018
- 2018-07-16 CN CN201810778110.9A patent/CN108677889B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0510524U (en) * | 1991-07-23 | 1993-02-12 | 日立造船株式会社 | Gate sealing device |
| JPH0860640A (en) * | 1994-08-12 | 1996-03-05 | Akio Iida | Water gate fitted on wall face |
| JPH11158852A (en) * | 1997-11-27 | 1999-06-15 | Ishikawajima Harima Heavy Ind Co Ltd | Gate |
| JP2004176328A (en) * | 2002-11-26 | 2004-06-24 | Akio Iida | Pneumatic type derricking gate |
| CN102518087A (en) * | 2011-12-07 | 2012-06-27 | 扬州众大水利机电设备制造有限公司 | Bottom gate of reservoir |
| CN202577243U (en) * | 2012-05-17 | 2012-12-05 | 中国水电顾问集团贵阳勘测设计研究院 | Turnover plate type plugging valve for diversion tunnel |
| CN203594006U (en) * | 2013-11-06 | 2014-05-14 | 中国水电顾问集团贵阳勘测设计研究院有限公司 | Sealing structure arranged in gate shaft body of diversion tunnel chamber |
| CN104060589A (en) * | 2014-06-19 | 2014-09-24 | 中国水利水电第十一工程局有限公司 | Flip sluice gate for sealing and blocking flow guide hole opening of hydropower station |
| CN206680969U (en) * | 2017-03-24 | 2017-11-28 | 中国电建集团贵阳勘测设计研究院有限公司 | It is a kind of to utilize the device that ecological flow is let out under existing closure gate |
| CN208668383U (en) * | 2018-07-16 | 2019-03-29 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of gate well head closure radial type cover board |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108677889A (en) | 2018-10-19 |
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