CN111119141A - Tail water hole export overhauls gate and fills drainage structures - Google Patents
Tail water hole export overhauls gate and fills drainage structures Download PDFInfo
- Publication number
- CN111119141A CN111119141A CN202010053464.4A CN202010053464A CN111119141A CN 111119141 A CN111119141 A CN 111119141A CN 202010053464 A CN202010053464 A CN 202010053464A CN 111119141 A CN111119141 A CN 111119141A
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- Prior art keywords
- water
- tail water
- pipe
- gate
- tail
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Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 175
- 238000012423 maintenance Methods 0.000 claims abstract description 52
- 230000002441 reversible effect Effects 0.000 claims abstract description 29
- 238000005086 pumping Methods 0.000 claims abstract description 13
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000010813 municipal solid waste Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 description 5
- 238000007599 discharging Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a water filling and draining structure of a tail water tunnel outlet maintenance gate, which comprises a tail water tunnel; an outlet maintenance gate is arranged at the outlet of the tail water hole; a reversible water pump is arranged at the top of the tail water tunnel at the side of the outlet maintenance gate unit; one end of the reversible water pump close to the unit side is connected with one end of the bypass pipe; the other end of the bypass pipe is positioned at the bottom of the tail water hole; one end of the reversible water pump close to the tail water side is connected with one end of a horizontal branch pipe of the tee joint, the other end of the horizontal branch pipe is connected with one end of a horizontal pressurizing pipe through a flow control valve, and the other end of the horizontal pressurizing pipe is positioned below the lowest tail water level of the tail water side of the outlet maintenance gate; the vertical branch pipe of the tee joint is connected with one end of a pumping and draining pipe through a flow control valve, and the other end of the pumping and draining pipe is positioned above a check tail water level at the tail water side of the outlet maintenance gate. According to the invention, the tail water hole water body can be removed by forward starting of the reversible water pump, and the water filling and pressure leveling speed can be increased by reversely starting to pump water, so that the maintenance efficiency is effectively improved; and the reliability of the gate for filling the horizontal pressure is improved.
Description
Technical Field
The invention relates to a water filling and draining structure of a tail water tunnel outlet maintenance gate, and belongs to the technical field of hydraulic and hydroelectric engineering metal structures.
Background
To the tailrace hole maintenance gate, consider to overhaul tailrace hole maintenance gate slot to export tunnel section, some projects have still set up the maintenance gate in the tailrace hole export, nevertheless there is the water pump that needs the unit side when overhauing to get rid of the consuming time overlength problem of whole tailrace hole water, and traditional tailrace hole export maintenance gate fills the water level and presses the water level that adopts its top to set up and to have easily to be blocked by the water foreign matter and open the scheduling problem untidy or close not tight, so, current technique still is perfect inadequately, treat further improvement.
Disclosure of Invention
The invention aims to provide a water filling and draining structure of an outlet maintenance gate of a tail water tunnel, so as to effectively shorten the draining time and solve the technical problem that the outlet maintenance gate is unsmooth in opening or not tight in closing, thereby overcoming the defects in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a water filling and draining structure of a tail water tunnel outlet maintenance gate, which comprises a tail water tunnel; an outlet maintenance gate is arranged at the outlet of the tail water hole; a reversible water pump is arranged at the top of the tail water tunnel at the side of the outlet maintenance gate unit; one end of the reversible water pump close to the unit side is connected with one end of the bypass pipe; the other end of the bypass pipe is positioned at the bottom of the tail water hole; one end of the reversible water pump close to the tail water side is connected with one end of a horizontal branch pipe of the tee joint, the other end of the horizontal branch pipe is connected with one end of a horizontal pressurizing pipe through a flow control valve, and the other end of the horizontal pressurizing pipe is positioned below the lowest tail water level of the tail water side of the outlet maintenance gate; the vertical branch pipe of the tee joint is connected with one end of a pumping and draining pipe through a flow control valve, and the other end of the pumping and draining pipe is positioned above a check tail water level at the tail water side of the outlet maintenance gate.
In the aforementioned tail water tunnel export maintenance gate fills drainage structures, reversible water pump, bypass pipeline, tee bend, level pressure pipe and drainage pipe respectively establish two sets, and one set is located export maintenance gate left side, and one set is located export maintenance gate right side.
In the water charging and discharging structure of the tail water hole outlet maintenance gate, a sewage blocking cover is arranged at a water inlet of the horizontal pressurizing pipe.
In the water filling and draining structure of the tailrace water tunnel outlet maintenance gate, the bypass pipe is communicated with the bottom of the tailrace water tunnel in the side wall of the tailrace water tunnel in a mode of obtuse-angle connection of the vertical pipe and the inclined pipe.
Compared with the prior art, the invention has the advantages that when the pumping and drainage pipeline controlled by the reversible water pump and the flow control valve group arranged on the unit side drains water, and the tail water tunnel maintenance gate slot is maintained to the exit tunnel section, the tail water tunnel maintenance gate can be closed firstly, only the water body between the tail water tunnel maintenance gate and the tail water tunnel exit maintenance gate needs to be removed, the water body of the whole tail water tunnel does not need to be removed, and the time is saved while the loss of electric energy is reduced; after the maintenance is finished, the water pump is reversely started through the reversible water pump to accelerate the water filling and pressure leveling speed, so that the maintenance efficiency is effectively improved; in addition, the bypass pipeline adopts an obtuse-angle arrangement mode formed by a vertical pipeline section and an inclined pipeline section in the side wall of the tail water hole, so that water flow is facilitated, a trash blocking device is arranged at the inlet of the water filling level pressure pipeline, and the reliability of water filling level pressure of the gate is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at D;
FIG. 3 is a cross-sectional view A-A of FIG. 1;
FIG. 4 is a cross-sectional view B-B of FIG. 1;
FIG. 5 is a cross-sectional view of C-C of FIG. 1;
fig. 6 is a working principle diagram of the present invention.
The figures are labeled as follows: 1-tail water hole, 2-outlet overhaul gate, 3-reversible water pump, 4-by-pass pipe, 5-tee joint, 6-horizontal branch pipe, 7-flow control valve, 8-horizontal pressure charging pipe, 9-vertical branch pipe, 10-drainage pipe, 11-trash rack cover, 12-vertical pipe, 13-inclined pipe, 14-overhaul gate and 15-water charging and discharging structure.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
The invention relates to a water filling and draining structure of a tailrace water tunnel outlet maintenance gate, which comprises a tailrace water tunnel 1 as shown in figures 1-6; an outlet maintenance gate 2 is arranged at the outlet of the tail water hole 1; a reversible water pump 3 is arranged at the top of the tail water tunnel 1 at the unit side of the outlet maintenance gate 2; one end of the reversible water pump 3 close to the unit side is connected with one end of the bypass pipe 4; the other end of the bypass pipe 4 is positioned at the bottom of the tail water hole; one end of the reversible water pump 3 close to the tail water side is connected with one end of a horizontal branch pipe 6 of the tee joint 5, the other end of the horizontal branch pipe 6 is connected with one end of a horizontal pressurizing pipe 8 through a flow control valve 7, and the other end of the horizontal pressurizing pipe 8 is positioned below the lowest tail water level of the tail water side of the outlet maintenance gate 2; the vertical branch pipe 9 of the tee joint 5 is connected with one end of a water pumping and draining pipe 10 through a flow control valve 7, and the other end of the water pumping and draining pipe 10 is positioned above a check tail water level at the tail water side of the outlet overhaul gate 2. The water inlet of the horizontal pressurizing pipe 8 is provided with a trash blocking cover 11. As shown in fig. 3 and 4, the reversible water pump 3, the bypass pipeline 4, the tee joint 5, the horizontal pressurizing pipe 8 and the pumping and draining pipe 10 are respectively provided with two sets, one set is positioned at the left side of the outlet maintenance gate 2, and the other set is positioned at the right side of the outlet maintenance gate 2; as shown in FIG. 5, the by-pass pipe 4 is communicated with the bottom of the tailrace cave 1 in the side wall of the tailrace cave 1 by adopting a mode that a vertical pipe 12 is connected with an inclined pipe 13 at an obtuse angle.
The working process and principle of the invention are explained as follows:
the invention sets up the reversible water pump 3 on the top of the tail water hole 1 of the unit side, the anterior part of reversible water pump 3 sets up the by-pass pipe 4 to lead to the bottom of the tail water hole by the unit side, the back part of reversible water pump sets up the tee junction 5 by the tail water side, the vertical branch 9 of the tee junction 5 is connected with the bottom of the drainage pipe 10 through controlling the flow valve 7, the top water outlet elevation of the drainage pipe 10 lies above the check tail water level; a horizontal branch pipe 6 of the tee joint 5 is connected with a horizontal pressurizing pipe 8 through a flow control valve 7, and a water inlet of the horizontal pressurizing pipe 8 is positioned below the lowest tail water level. When the water is drained, as shown in fig. 6, when the inspection gate 14 of the tail water tunnel is inspected to the outlet section of the tail water tunnel, the inspection gate 14 of the tail water tunnel 1 can be closed firstly, then the outlet inspection gate 2 is closed, and then the water body in the tail water tunnel 1 between the inspection gate 14 and the outlet inspection gate 2 is drained by using the water filling and draining structure 15 of the invention, so that the water body of the whole tail water tunnel does not need to be drained, and the loss of electric energy is reduced while the time is saved. After the maintenance is finished, the water pump is reversely started through the reversible water pump 3 to accelerate the water filling and pressure leveling speed, so that the maintenance efficiency is effectively improved; in addition, the bypass pipeline adopts an obtuse-angle arrangement mode formed by a vertical pipeline section and an inclined pipeline section in the side wall of the tail water hole, so that water flow is facilitated, a trash blocking device is arranged at the inlet of the water filling level pressure pipeline, and the reliability of water filling level pressure of the gate is improved.
During specific implementation, the reversible water pump 3 is arranged at the top of the tail water tunnel 1 at the unit side of the outlet overhaul gate 2 of the tail water tunnel 1. A bypass pipe 4 is arranged at the front part of the reversible water pump 3 close to the unit side and led to the bottom of the tail water hole 1, and a tee joint 5 is arranged at the rear part of the reversible water pump 3 close to the tail water side; a vertical branch pipe 9 of the tee joint 5 is connected with the bottom of a pumping and drainage pipe 10 through a flow control valve 7, and the height of a water outlet at the top of the pumping and drainage pipe 10 is above a check tail water level; a horizontal branch pipe 6 of the tee joint 5 is connected with a horizontal pressurizing pipe 8 through a flow control valve 7, and a water inlet of the horizontal pressurizing pipe 8 is positioned below the lowest tail water level;
when the maintenance gate 14 of the tail water tunnel 1 is overhauled and drained to the exit tunnel section, the maintenance gate 14 and the exit maintenance gate 2 of the tail water tunnel 1 are closed firstly. And opening the flow control valve 7 of the vertical branch pipe 9, closing the flow control valve 7 of the horizontal branch pipe 6, and utilizing the reversible water pump 3 to be opened in the forward direction to discharge the water body between the overhaul gate 14 and the outlet overhaul gate 2 through the drainage pipe 10. When the outlet maintenance gate 2 of the tail water tunnel 1 is filled with water and horizontally pressed, the flow control valve 7 of the vertical branch pipe 9 is closed, the flow control valve 7 of the horizontal branch pipe 6 is opened, and the reversible water pump 3 is reversely opened to pump tail water at the outlet maintenance gate 2 side of the tail water tunnel 1 to the tail water tunnel 1 for horizontally pressing. The bypass pipe 4 is arranged in the side wall of the tail water hole 1 in an obtuse angle connection mode of a vertical pipe 12 and an inclined pipe 13; the water inlet of the horizontal pressurizing pipe 8 is provided with a trash blocking cover 11.
When the pumping and drainage pipeline which is arranged at the side of the unit and controlled by the reversible water pump and the flow control valve group drains water and a tail water tunnel maintenance gate groove is maintained to an exit tunnel section, the tail water tunnel maintenance gate can be closed firstly, only the water body between the tail water tunnel maintenance gate and the tail water tunnel exit maintenance gate needs to be removed, the water body of the whole tail water tunnel does not need to be removed, and the loss of electric energy is reduced while the time is saved; after the maintenance is finished, the water pump is reversely started through the reversible water pump to accelerate the water filling and pressure leveling speed, so that the maintenance efficiency is effectively improved; in addition, the bypass pipeline adopts an obtuse-angle arrangement mode formed by a vertical pipeline section and an inclined pipeline section in the side wall of the tail water hole, so that water flow is facilitated, a trash blocking device is arranged at the inlet of the water filling level pressure pipeline, and the reliability of water filling level pressure of the gate is improved.
Claims (4)
1. A water filling and draining structure of a tail water tunnel outlet maintenance gate comprises a tail water tunnel (1), wherein an outlet maintenance gate (2) is arranged at the outlet of the tail water tunnel (1); the method is characterized in that: a reversible water pump (3) is arranged at the top of the tail water hole (1) at the unit side of the outlet overhaul gate (2); one end of the reversible water pump (3) close to the unit side is connected with one end of the bypass pipe (4); the other end of the bypass pipe (4) is positioned at the bottom of the tail water hole; one end of the reversible water pump (3) close to the tail water side is connected with one end of a horizontal branch pipe (6) of the tee joint (5), the other end of the horizontal branch pipe (6) is connected with one end of a horizontal pressurizing pipe (8) through a flow control valve (7), and the other end of the horizontal pressurizing pipe (8) is positioned below the lowest tail water level of the tail water side of the outlet maintenance gate (2); the vertical branch pipe (9) of the tee joint (5) is connected with one end of a water pumping and draining pipe (10) through a flow control valve (7), and the other end of the water pumping and draining pipe (10) is positioned above a check tail water level of the tail water side of the outlet maintenance gate (2).
2. The tailrace cavern exit service gate of claim 1 fills drainage structures, characterized in that: reversible water pump (3), bypass pipeline (4), tee bend (5), horizontal pressure tube (8) and take out drain pipe (10) and respectively establish two sets, and one set is located export and overhauls gate (2) left side, and one set is located export and overhauls gate (2) right side.
3. The tailrace cavern exit service gate of claim 1 fills drainage structures, characterized in that: a trash blocking cover (11) is arranged at a water inlet of the horizontal pressurizing pipe (8).
4. The tailrace cavern exit service gate of claim 1 fills drainage structures, characterized in that: the bypass pipe (4) is communicated with the bottom of the tail water tunnel (1) in the side wall of the tail water tunnel (1) in an obtuse angle connection mode of a vertical pipe (12) and an inclined pipe (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010053464.4A CN111119141A (en) | 2020-01-17 | 2020-01-17 | Tail water hole export overhauls gate and fills drainage structures |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010053464.4A CN111119141A (en) | 2020-01-17 | 2020-01-17 | Tail water hole export overhauls gate and fills drainage structures |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111119141A true CN111119141A (en) | 2020-05-08 |
Family
ID=70489802
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010053464.4A Pending CN111119141A (en) | 2020-01-17 | 2020-01-17 | Tail water hole export overhauls gate and fills drainage structures |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111119141A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502790A (en) * | 2021-05-14 | 2021-10-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Arrangement and installation method and structure of tail water surge shaft gate and opening and closing equipment |
Citations (10)
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|---|---|---|---|---|
| JPH11122845A (en) * | 1997-10-09 | 1999-04-30 | Mitsubishi Heavy Ind Ltd | Pumping and drainage system for power generation |
| JP2000144698A (en) * | 1998-11-05 | 2000-05-26 | Katsuhiko Hamamoto | Buoyancy pumping type hydraulic power generation |
| JP2001100845A (en) * | 1999-09-27 | 2001-04-13 | Electric Power Dev Co Ltd | Conduit/hydraulic iron pipe water charging/discharging control system |
| CN201473933U (en) * | 2009-09-08 | 2010-05-19 | 中国水电顾问集团北京勘测设计研究院 | Combination layout structure of tail water emergency gate and tail water surge shaft in pumped storage power station |
| CN103556611A (en) * | 2013-11-05 | 2014-02-05 | 中国水电顾问集团华东勘测设计研究院有限公司 | Plunge pool water filling and discharging system capable of generating electricity |
| CN203570354U (en) * | 2013-10-15 | 2014-04-30 | 长江勘测规划设计研究有限责任公司 | Moving overhauling drainage device of long tailrace tunnel system for hydropower station |
| CN206646466U (en) * | 2017-03-09 | 2017-11-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Drainage structure for emptying maintenance of diversion tunnel |
| CN107419789A (en) * | 2017-07-20 | 2017-12-01 | 贵州省水利水电勘测设计研究院 | The drainage system and water discharge method of the turbine-generator units in the higher river of tailwater level |
| CN108824382A (en) * | 2018-06-08 | 2018-11-16 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for overhauling tail water cooler |
| CN212388489U (en) * | 2020-01-17 | 2021-01-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Tail water hole export overhauls gate and fills drainage structures |
-
2020
- 2020-01-17 CN CN202010053464.4A patent/CN111119141A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11122845A (en) * | 1997-10-09 | 1999-04-30 | Mitsubishi Heavy Ind Ltd | Pumping and drainage system for power generation |
| JP2000144698A (en) * | 1998-11-05 | 2000-05-26 | Katsuhiko Hamamoto | Buoyancy pumping type hydraulic power generation |
| JP2001100845A (en) * | 1999-09-27 | 2001-04-13 | Electric Power Dev Co Ltd | Conduit/hydraulic iron pipe water charging/discharging control system |
| CN201473933U (en) * | 2009-09-08 | 2010-05-19 | 中国水电顾问集团北京勘测设计研究院 | Combination layout structure of tail water emergency gate and tail water surge shaft in pumped storage power station |
| CN203570354U (en) * | 2013-10-15 | 2014-04-30 | 长江勘测规划设计研究有限责任公司 | Moving overhauling drainage device of long tailrace tunnel system for hydropower station |
| CN103556611A (en) * | 2013-11-05 | 2014-02-05 | 中国水电顾问集团华东勘测设计研究院有限公司 | Plunge pool water filling and discharging system capable of generating electricity |
| CN206646466U (en) * | 2017-03-09 | 2017-11-17 | 中国电建集团贵阳勘测设计研究院有限公司 | Drainage structure for emptying maintenance of diversion tunnel |
| CN107419789A (en) * | 2017-07-20 | 2017-12-01 | 贵州省水利水电勘测设计研究院 | The drainage system and water discharge method of the turbine-generator units in the higher river of tailwater level |
| CN108824382A (en) * | 2018-06-08 | 2018-11-16 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for overhauling tail water cooler |
| CN212388489U (en) * | 2020-01-17 | 2021-01-22 | 中国电建集团贵阳勘测设计研究院有限公司 | Tail water hole export overhauls gate and fills drainage structures |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113502790A (en) * | 2021-05-14 | 2021-10-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Arrangement and installation method and structure of tail water surge shaft gate and opening and closing equipment |
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