CN110820694A - Water leakage system of high-fall dam - Google Patents
Water leakage system of high-fall dam Download PDFInfo
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- CN110820694A CN110820694A CN201810893804.7A CN201810893804A CN110820694A CN 110820694 A CN110820694 A CN 110820694A CN 201810893804 A CN201810893804 A CN 201810893804A CN 110820694 A CN110820694 A CN 110820694A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 103
- 238000012423 maintenance Methods 0.000 claims abstract description 32
- 238000009434 installation Methods 0.000 claims abstract description 18
- 238000005086 pumping Methods 0.000 claims abstract description 10
- 238000005192 partition Methods 0.000 claims description 10
- 230000009189 diving Effects 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000002955 isolation Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 2
- 239000004429 Calibre Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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- 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
- E02B7/02—Fixed barrages
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/16—Sealings or joints
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a water leakage system of a high-fall dam, which comprises an electric room, a water collecting well and a pump room arranged above the water collecting well, wherein the electric room is arranged on the water collecting well; the submersible deep well pump set is arranged in the pump room and used for pumping and draining water leakage in the water collecting well, the electric room is arranged at a higher elevation relative to the water collecting well, a high-fall overhaul hanging well is arranged between the electric room and the pump room, a high-lift bridge machine is arranged above the high-fall overhaul hanging well and is arranged at the top of the electric room, and the high-lift bridge machine is used for dropping the submersible deep well pump set from the high-fall overhaul hanging well so as to facilitate the installation of the submersible deep well pump set or lifting the submersible deep well pump set from the high-fall overhaul hanging well so as to facilitate the overhaul of the submersible deep well pump set; the upper part of the submersible deep well pump is connected with a water lifting pipe, and the upper end of the water lifting pipe is connected with a water drainage pipe. The water leakage system of the high-fall dam provided by the invention places the electric room at a higher elevation, can obtain a better operation and maintenance environment, and can greatly prolong the service life of equipment under a drier condition.
Description
Technical Field
The invention belongs to the technical field of water conservancy and hydropower, and particularly relates to a water leakage system of a high-fall dam.
Background
With the development of hydropower utilities in China, a plurality of high arch dams or extra-high arch dams are continuously built, and the arrangement of a dam leakage drainage system can be more convenient to overhaul and maintain; meanwhile, more high-fall vertical mines and high-fall underground nuclear power vertical shafts to be developed recently are arranged in China, and the leakage drainage system can be used. Therefore, it is well known that the improvement and improvement of the working conditions for the overhaul and maintenance of the equipment as much as possible is required and the improvement of the operational reliability of the equipment is desired.
For the water conservancy and hydropower engineering provided with a high-fall dam and a large plunge pool, a leakage drainage system is required to be arranged. As the elevation of the collecting galleries for the foundation of the dam and the leakage water of the plunge pool needs to be set lower, the leakage water of the dam body of the dam and the leakage water under the bottom plate of the plunge pool can be collected and collected completely and pumped out. Because the elevation is lower, the arrangement of equipment and the installation condition and the operating environment are poorer, the device mainly shows that a bottom gallery is wet, the ventilation condition is poor, the traffic condition is inconvenient, a vehicle or a lifting system cannot directly reach the equipment installation place at the bottom, the equipment is difficult to transport, and great inconvenience is brought to the installation and maintenance of workers.
The current seepage drainage system scheme of the dam and the plunge pool mainly comprises the steps of arranging a large-aperture deep well or placing a motor and a control cabinet pump set on a water collecting well platform. For large aperture deep well submersible pump package, electric room and submersible deep well pump package set up respectively at different elevations promptly, be provided with large-scale device that bears at the heavy-calibre well head, the high fall lifting pipe adopts flange joint, this kind of mode will set up the great standard lifting pipe coupling of quantity, then need tear down the water coupling respectively and demolish the power cable who fixes on the lifting pipe coupling respectively when unit installation and maintenance, inconvenience has been brought for the operating personnel, need set up great bearing device at the well head simultaneously, and the electric pump room on upper portion need set up great installation space so that stack lifting pipe coupling and the pump package of tearing down, the size of electric pump room on upper portion has been increased, simultaneously because the bridge crane on upper portion need mention all lifting pipes and pump package, its rated load is also great. And will draw water pump package and switch board setting on the sump pit platform, then because the operational environment of lower part is relatively poor, equipment wets easily, and the trouble is great, because equipment is on the sump pit platform, personnel work in the lower part for a long time, causes certain influence to personnel's health. The structure influence of the dam is received, and the sump pit size of dam all receives the restriction in width and depth direction, therefore the plane size is great, mainly shows that sump pit length direction all is longer generally, because pump package centralized arrangement, the sump pit silts more easily, and above-mentioned two schemes all are difficult to solve the sump pit problem.
Disclosure of Invention
The present invention is directed to a water leakage system for a high drop height dam, which overcomes the above-mentioned shortcomings in the prior art.
For this reason, the above object of the present invention is achieved by the following technical solutions:
a water leakage system of a high-fall dam is arranged in the high-fall dam and comprises an electric room, a water collecting well and a pump room arranged above the water collecting well; the submersible deep well pump set is characterized in that a submersible deep well pump set for pumping and draining water leakage in a water collecting well is arranged in the pump room, the electric room is arranged at a higher elevation relative to the water collecting well, a high-fall overhaul hanging well is arranged between the electric room and the pump room, a high-lift bridge crane is arranged above the high-fall overhaul hanging well and used for falling the submersible deep well pump set from the high-fall overhaul hanging well so as to facilitate the installation of the submersible deep well pump set or rising the submersible deep well pump set from the high-fall overhaul hanging well so as to facilitate the overhaul of the submersible deep well pump set; the upper part of the submersible deep well pump is connected with a water lifting pipe, and the upper end of the water lifting pipe is connected with a water drainage pipe.
While adopting the above technical scheme, the present invention can also adopt or combine the following further technical schemes:
preferably, an overhaul platform is arranged above the water collecting well, a pump set moving platform is arranged on the overhaul platform, a connecting flange is arranged between the submersible deep well pump and the water raising pipe, and the pump set moving platform is arranged below the connecting flange; a submersible deep well pump maintenance clamping ring is arranged between the maintenance platform and the connecting flange; the deep well pump of diving overhauls the snap ring and is used for realizing the installation between deep well pump of diving and the lifting pipe and demolishs, pump package moving platform is used for realizing the removal on the maintenance platform of the deep well pump of diving that does not install or demolishs.
Preferably, the dive deep-well pump outside is equipped with the hoist, be equipped with two lifting hooks on the hoist, the top in pump house is equipped with electric block, electric block is connected with a lifting hook on the hoist, and another lifting hook of hoist is connected with the bridge crane lifting hook on the high-lift bridge crane in order to realize that the dive deep-well pump is rotated to electric block by the bridge crane lifting hook on the high-lift bridge crane.
Preferably, the top of pump house still is equipped with supplementary lifting hook near the lifting pipe, be equipped with chain block on the supplementary lifting hook, chain block connects another lifting hook of hoist and cooperatees with electric block in order to realize installing or demolising from overhauing the platform with diving deep-well pump removal to on overhauing the platform.
Preferably, the drainage pipe is respectively connected with a first drainage main pipe and a second drainage main pipe, the first drainage main pipe is connected into the plunge pool behind the dam, and the second drainage main pipe is connected into the drainage ditch of the bank slope road through a dam rear bridge; and a first isolating valve and a second isolating valve are respectively arranged on the first drainage main pipe and the second drainage main pipe to realize drainage switching between the first drainage main pipe and the second drainage main pipe.
Preferably, a pump trough is arranged in the water collecting well and used for installing the submersible deep well pump in a limiting mode.
Preferably, be equipped with the desilting partition wall in the sump pit, the desilting partition wall separates into a plurality of regions with the sump pit inner space, all be equipped with dive deep-well pump and the lifting pipe that is connected with dive deep-well pump in the sump pit of desilting partition wall both sides.
Preferably, a lifting pipe drain pipe arranged towards the direction of the water collecting well is arranged at a position close to the submersible deep well pump on the lifting pipe, and a lifting pipe drain pipe maintenance valve is arranged on the lifting pipe drain pipe.
Preferably, a bracket for supporting the drain pipe is arranged below the drain pipe.
For the hydraulic and hydroelectric engineering provided with a high-fall dam and a large plunge pool, leakage drainage systems are required to be arranged, the elevation of a foundation of the dam and a leakage water collection gallery of the plunge pool is required to be low, so that leakage water of a dam body of the dam and leakage water under a bottom plate of the plunge pool can be collected and collected completely, the elevation is low, the arrangement and installation environment of equipment are poor, vehicles or lifting systems cannot directly reach an equipment installation place at the bottom, and great inconvenience is brought to the work of installation and maintenance staff.
The invention has the following beneficial effects:
(1) the water leakage system of the high-fall dam provided by the invention places the electric room at a higher elevation, can obtain a better operation and maintenance environment, and can greatly prolong the service life of equipment under a drier condition. The pumping pipe between from electric room to pump house adopts to bury the mode underground and has greatly improved the maintenance, the construction of also being convenient for simultaneously, and the maintenance platform of bottom and lift by crane equipment (electric block and chain block) can make things convenient for the overhaul of the equipments, make things convenient for dive deep well pump package to demolish or install, improved maintenance efficiency, improved the maintenance environment.
(2) The water leakage system of the high-fall dam is provided with two drainage paths, one drainage path is arranged in the plunge pool behind the dam, the other drainage path is arranged in the drainage ditch of the side slope packway through the rear bridge of the dam, and the leakage is directly discharged to the downstream, so that the secondary transportation of the leakage drainage during the overhaul of the plunge pool is realized, the overhaul of the plunge pool is facilitated, and the safety of personnel during the overhaul of the plunge pool is ensured.
(3) The maintenance platform, the dredging partition wall, the electric hoist, the high-lift bridge crane and the high-fall maintenance hanging well arranged in the water leakage system of the high-fall dam can realize dredging and drainage switching in the water collecting well, realize dredging of the water collecting well in a dry environment, simultaneously can be transferred to an electric room by using the maintenance platform and the electric hoist and directly transferred to the outside of a factory by using a motor vehicle, greatly improve the operating condition of the water collecting well, avoid the rapid reduction of the effective volume of the water collecting well caused by sediment deposition in the water collecting well and avoid the frequent starting of the submersible deep well pump caused by the reduction of the effective volume of the water collecting well.
Drawings
Fig. 1 is a plan view of a water leakage system of a high drop dam according to the present invention.
Fig. 2 is a schematic side view of a water leakage system of a high-fall dam according to the present invention.
Fig. 3 is a schematic front view of a water leakage system of a high-fall dam according to the present invention.
Detailed Description
The invention is described in further detail with reference to the figures and specific embodiments.
A water leakage system of a high-fall dam comprises an electric room 1, a water collecting well 2 and a pump room 3 arranged above the water collecting well 2; the pump house 3 is internally provided with 4 groups of submersible deep well pumps for pumping and draining water leakage in the water collecting well 2, the electric house 1 is arranged at a higher elevation relative to the water collecting well 2, a high-fall overhaul hanging well 5 is arranged between the electric house 1 and the pump house 3, a high-lift bridge crane 6 is arranged above the high-fall overhaul hanging well 5, the high-lift bridge crane 6 is arranged at the top of the electric house 1, and the high-lift bridge crane 6 is used for dropping the 4 groups of submersible deep well pumps from the high-fall overhaul hanging well 5 to facilitate the installation of the submersible deep well pumps or lifting the 4 groups of submersible deep well pumps from the high-fall overhaul hanging well 5 to facilitate the overhaul of the submersible deep well pumps; the upper part of the submersible deep well pump 4 is connected with a water lifting pipe 7, and the upper end of the water lifting pipe 7 is connected with a water drainage pipe 8.
An overhaul platform 9 is arranged above the water collecting well 2, a pump set moving platform 10 is arranged on the overhaul platform 9, a connecting flange 11 is arranged between the submersible deep well pump 4 and the water lifting pipe 7, and the pump set moving platform 10 is arranged below the connecting flange 11; a submersible deep well pump maintenance snap ring 12 is arranged between the maintenance platform 9 and the connecting flange 11; the deep-well submersible pump overhaul snap ring 12 is used for realizing the installation and the removal between the deep-well submersible pump 4 and the water pumping pipe 7, and the pump set moving platform 10 is used for realizing the movement of the deep-well submersible pump 4 on the overhaul platform 9 without installation or after removal.
4 outsides of deep-well pump dives are equipped with hoist 13, are equipped with two lifting hooks 14 on hoist 13, and the top of pump house 3 is equipped with electric block 15, and electric block 15 is connected with a lifting hook on hoist 13, and another lifting hook of hoist 13 is connected with bridge crane lifting hook 16 on the high-lift bridge crane 6 in order to realize deep-well pump 4 that dives by bridge crane lifting hook 16 on the high-lift bridge crane 6 to rotate to electric block 15 on. The electric hoist 15 is used for lifting the submersible deep well pump 4 to the maintenance platform 9 for inspection and cleaning of external dirt, and the submersible deep well pump 4 can be moved to the position below the high-fall maintenance hanging well 5, lifted to the electric room 1 through the large-caliber high-fall maintenance hanging well 5 by the lifting hook of the high-lift bridge machine 6, and then conveyed to the outside of the factory through the outward channel of the electric room 1 and processed.
The top of pump house 3 still is equipped with supplementary lifting hook 17 near lifting pipe 7, is equipped with chain block (not shown in the figure) on the supplementary lifting hook 17, and chain block connects another lifting hook of hoist 13 and cooperatees with electric block 15 and installs or demolish from overhauing on platform 9 with diving deep-well pump 4 removal to the realization on overhauing platform 9.
The drain pipe 8 is respectively connected with a first drain main pipe 18 and a second drain main pipe 19, the first drain main pipe 18 is connected into a pond behind a dam, and the second drain main pipe 19 is connected into a drain ditch of a bank slope road through a dam rear bridge; the first and second drain manifolds 18 and 19 are provided with first and second isolation valves 20 and 21, respectively, to switch the drain between the first and second drain manifolds 18 and 19.
A pump groove 22 is arranged in the water collecting well 2, and the pump groove 22 is used for installing the submersible deep well pump 4 in a limiting way.
A dredging partition wall 23 is arranged in the water collecting well 2, the space in the water collecting well 2 is divided into a plurality of areas by the dredging partition wall 23, and a submersible deep well pump 4 and a water lifting pipe 7 connected with the submersible deep well pump 4 are arranged in the water collecting well 2 at two sides of the dredging partition wall 23.
A bracket 24 for supporting the drain pipe 8 is arranged below the drain pipe 8.
When the submersible deep-well pump 4 is overhauled, the submersible deep-well pump 4 is dismantled and shifted by utilizing the auxiliary lifting hook 17 arranged above the connecting flange 11 and the submersible deep-well pump overhauling clamping ring 12 arranged on the overhauling platform 9. The submerged deep well pump 4 is moved to the lower part of a monorail electric hoist 15 by a pump set moving platform 10 arranged on an overhaul platform 9, the submerged deep well pump 4 is moved to the lower part of a high-fall hanging well by the electric hoist 15, a high-lift bridge machine 6 is started, a bridge machine lifting hook 16 of the high-lift bridge machine 6 is made to descend, the bridge machine lifting hook 16 of the high-lift bridge machine 6 is connected with a lifting hook of a lifting appliance 13 above the submerged deep well pump 4, then the lifting hook on the electric hoist 15 is slowly put down, the horizontal lateral tension on the submerged deep well pump 4 generated by the lifting hook on the electric hoist 15 and the lifting hook on the high-lift bridge machine 6 is utilized to slowly adjust the submerged deep well pump 4 to the position under the high-fall overhaul hanging well 5, the submerged deep well pump 4 is slowly lifted to an electric house 1 by a lifting mechanism of the high-lift bridge machine 6, the submerged deep well pump 4 is transported out of a factory by a transport vehicle, meanwhile, a new submersible deep well pump 4 outside the factory is hoisted to the lower part of the lift pipe 7 by a high-fall maintenance hoisting well 5 by the same method, and the replacement of the submersible deep well pump 4 is realized by the electric hoist 15 and the auxiliary lifting hook 17 arranged near the lift pipe 7 at the top of the pump room 3. The lift pipe 7 above the maintenance platform 9 is also provided with a lift pipe drain pipe 25 and a lift pipe drain pipe maintenance valve 26, before 4 groups of the submerged deep well pump are maintained, the maintenance valve 26 on the lift pipe drain pipe 25 can be opened, and the lift pipe drain pipe 25 is utilized to discharge accumulated water in the lift pipe 7 of the high-fall submerged deep well pump, so that the maintenance is convenient.
The water raising pipe 7 is buried in the large-volume concrete, and the water raising pipe 7 is collected in the header pipe in the electric room 1. The main drainage pipe is arranged in two ways, and the first main drainage pipe 18 is arranged into a plunge pool at the downstream of the dam; the second main drain pipe 19 drains into a drain in the horse way of the two bank slopes. When the dam works normally, the first isolation valve 20 is opened, the second isolation valve 21 is closed, the first drainage main pipe 18 is collected in the water raising pipe 7 and is discharged into a plunge pool at the downstream of the dam; when the plunge pool is overhauled, the water plunge pool is overhauled under a dry environment conveniently by switching operation of valves on a main drainage pipeline, namely closing the first isolation valve 20 and opening the second isolation valve 21, switching the water of the water raising pipe 7 to the second main drainage pipe 19, laying the water to the main drainage pipe of the two bank side slope streets through the rear bridge of the dam, and discharging the water to the drainage ditch in the streets of the two bank side slopes.
The above-described embodiments are intended to illustrate the present invention, but not to limit the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention and the scope of the claims fall within the scope of the present invention.
Claims (9)
1. The water leakage system of the high-fall dam is characterized in that the water leakage system of the high-fall dam is arranged in the high-fall dam, and comprises an electric room, a water collecting well and a pump room arranged above the water collecting well; the submersible deep well pump set is characterized in that a submersible deep well pump set for pumping and draining water leakage in a water collecting well is arranged in the pump room, the electric room is arranged at a higher elevation relative to the water collecting well, a high-fall overhaul hanging well is arranged between the electric room and the pump room, a high-lift bridge crane is arranged above the high-fall overhaul hanging well and used for falling the submersible deep well pump set from the high-fall overhaul hanging well so as to facilitate the installation of the submersible deep well pump set or rising the submersible deep well pump set from the high-fall overhaul hanging well so as to facilitate the overhaul of the submersible deep well pump set; the upper part of the submersible deep well pump is connected with a water lifting pipe, and the upper end of the water lifting pipe is connected with a water drainage pipe.
2. The water leakage system of a high drop height dam according to claim 1, wherein an overhaul platform is arranged above the water collecting well, a pump set moving platform is arranged on the overhaul platform, a connecting flange is arranged between the submersible deep well pump and the water lifting pipe, and the pump set moving platform is arranged below the connecting flange; a submersible deep well pump maintenance clamping ring is arranged between the maintenance platform and the connecting flange; the deep well pump of diving overhauls the snap ring and is used for realizing the installation between deep well pump of diving and the lifting pipe and demolishs, pump package moving platform is used for realizing the removal on the maintenance platform of the deep well pump of diving that does not install or demolishs.
3. The water leakage system of high drop dam according to claim 1, wherein a lifting appliance is arranged outside the submersible deep well pump, two lifting hooks are arranged on the lifting appliance, an electric hoist is arranged at the top of the pump room, the electric hoist is connected with one lifting hook on the lifting appliance, and the other lifting hook of the lifting appliance is connected with the bridge crane lifting hook on the high-lift bridge crane to realize that the submersible deep well pump is turned off to the electric hoist by the bridge crane lifting hook on the high-lift bridge crane.
4. The water leakage system of the high drop dam according to claim 3, wherein an auxiliary hook is further provided at the top of the pump house near the lift pipe, a chain block is provided on the auxiliary hook, the chain block is connected to another hook of the lifting tool and matched with the electric block to move the submersible deep well pump to the maintenance platform for installation or removal from the maintenance platform.
5. The water seepage system of a high drop height dam according to claim 1, wherein the drainage pipes are respectively connected with a first drainage main pipe and a second drainage main pipe, the first drainage main pipe is connected to the inside of the pond behind the dam, and the second drainage main pipe is connected to the inside of the drainage ditch of the bank slope horse way through a bridge behind the dam; and a first isolating valve and a second isolating valve are respectively arranged on the first drainage main pipe and the second drainage main pipe to realize drainage switching between the first drainage main pipe and the second drainage main pipe.
6. The water seepage system of a high drop dam according to claim 1 wherein said sump is provided with a pump trough for limited installation of a submersible deep well pump.
7. The water seepage system of a high drop dam according to claim 1, wherein a dredging partition wall is arranged in the sump, the space in the sump is divided into a plurality of areas by the dredging partition wall, and a submersible deep well pump and a water raising pipe connected with the submersible deep well pump are arranged in the sump at both sides of the dredging partition wall.
8. The water leakage system of a high drop dam according to claim 1, wherein a water pumping pipe drain pipe arranged toward the direction of the water collecting well is provided on the water pumping pipe at a position close to the submersible deep well pump, and a water pumping pipe drain pipe service valve is provided on the water pumping pipe drain pipe.
9. The water seepage system of a high drop dam according to claim 1 wherein said drain pipe is provided with a bracket for supporting the drain pipe thereunder.
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CN201810893804.7A CN110820694A (en) | 2018-08-08 | 2018-08-08 | Water leakage system of high-fall dam |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202510356U (en) * | 2012-03-02 | 2012-10-31 | 中国水电顾问集团华东勘测设计研究院 | Deep well water pump lubrication water system |
CN203320494U (en) * | 2013-07-01 | 2013-12-04 | 中国水电顾问集团中南勘测设计研究院 | High dam spillway foundation drainage system |
CN205894042U (en) * | 2016-06-01 | 2017-01-18 | 中国电建集团华东勘测设计研究院有限公司 | Discharge system of slurry leakage water |
CN207512707U (en) * | 2017-11-28 | 2018-06-19 | 中国电建集团成都勘测设计研究院有限公司 | A kind of stiling basin for laying novel evacuation system |
CN208995988U (en) * | 2018-08-08 | 2019-06-18 | 中国电建集团华东勘测设计研究院有限公司 | A kind of leakage water system of high drop dam |
-
2018
- 2018-08-08 CN CN201810893804.7A patent/CN110820694A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN202510356U (en) * | 2012-03-02 | 2012-10-31 | 中国水电顾问集团华东勘测设计研究院 | Deep well water pump lubrication water system |
CN203320494U (en) * | 2013-07-01 | 2013-12-04 | 中国水电顾问集团中南勘测设计研究院 | High dam spillway foundation drainage system |
CN205894042U (en) * | 2016-06-01 | 2017-01-18 | 中国电建集团华东勘测设计研究院有限公司 | Discharge system of slurry leakage water |
CN207512707U (en) * | 2017-11-28 | 2018-06-19 | 中国电建集团成都勘测设计研究院有限公司 | A kind of stiling basin for laying novel evacuation system |
CN208995988U (en) * | 2018-08-08 | 2019-06-18 | 中国电建集团华东勘测设计研究院有限公司 | A kind of leakage water system of high drop dam |
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