CN111608144A - Water supply and drainage integrated system for small and medium-sized hydraulic engineering - Google Patents
Water supply and drainage integrated system for small and medium-sized hydraulic engineering Download PDFInfo
- Publication number
- CN111608144A CN111608144A CN202010589894.8A CN202010589894A CN111608144A CN 111608144 A CN111608144 A CN 111608144A CN 202010589894 A CN202010589894 A CN 202010589894A CN 111608144 A CN111608144 A CN 111608144A
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- water
- pipe
- water inlet
- sand
- water supply
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 162
- 239000004576 sand Substances 0.000 claims abstract description 79
- 238000001914 filtration Methods 0.000 claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000012423 maintenance Methods 0.000 claims abstract description 7
- 239000010813 municipal solid waste Substances 0.000 claims description 5
- 239000008400 supply water Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract description 2
- 239000013049 sediment Substances 0.000 abstract description 2
- 239000004575 stone Substances 0.000 description 6
- 241000282414 Homo sapiens Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000001363 water suppression through gradient tailored excitation Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
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
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
- E02B8/023—Arresting devices for waterborne materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
- B01D29/92—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging filtrate
-
- 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
-
- 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
- E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
- E02B8/023—Arresting devices for waterborne materials
- E02B8/026—Cleaning devices
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention discloses a water supply and drainage integrated system for small and medium-sized hydraulic engineering, which comprises a water inlet header pipe, a water supply pipe and a drainage pipe, wherein the outlet end of the water inlet header pipe is connected with a vent hole, one side wall of the vent hole is provided with an accident gate, the other side wall of the vent hole is provided with a water outlet pipe, the tail end of the water outlet pipe is respectively connected with the water supply pipe and the drainage pipe, the water supply pipe is provided with a first maintenance butterfly valve, the drainage pipe is provided with a second maintenance butterfly valve, a sand filtering mechanism is connected in the pipeline of the water outlet pipe, and both ends of the. The invention realizes the sand filtering operation on water supply and water drainage, avoids the problem of sediment accumulation in a downstream pipeline, realizes the functions of water supply and water drainage through one pipeline and has good use effect.
Description
Technical Field
The invention relates to the technical field of hydraulic engineering, in particular to a water supply and drainage integrated system for small and medium-sized hydraulic engineering.
Background
Hydraulic engineering is an engineering built for controlling and allocating surface water and underground water in nature to achieve the purposes of removing harmful substances and benefiting. Water is a valuable resource essential for human production and life, but its naturally occurring state does not completely meet the needs of human beings. Only when hydraulic engineering is built, water flow can be controlled, flood disasters are prevented, and water quantity is adjusted and distributed to meet the requirements of people on water resources in life and production. Hydraulic engineering needs to build various types of hydraulic buildings such as dams, dikes, spillways, water gates, water inlets, channels, transition troughs, rafts, fishways and the like so as to achieve the aims.
For the reservoir, generally require to have the function of getting water and sluicing, it is usually equipped with two independent pipelines and takes water and sluicing respectively, makes investment cost increase, and the water body that flows all can be mixed with the gravel and sand that has been taken up from the bottom, and along with the increase of water supply and sluicing flow, the reduction of velocity of flow, gravel and sand can pile up at the downstream to subsequent water supply and sluicing work is influenced.
Disclosure of Invention
The invention aims to provide a water supply and drainage integrated system for small and medium-sized hydraulic engineering, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a supply water and integrative system of sluicing for middle-size and small-size hydraulic engineering, including inlet manifold, delivery pipe and outlet pipe, inlet manifold exit end connects the blow-down hole, a blow-down hole lateral wall is provided with the accident gate, another lateral wall in blow-down hole is provided with the outlet pipe, delivery pipe and outlet pipe are connected respectively to the outlet pipe end, be provided with first maintenance butterfly valve on the delivery pipe, be provided with the second on the outlet pipe and overhaul the butterfly valve, be connected with in the outlet pipe pipeline and strain husky mechanism, strain husky mechanism both ends with going out water piping connection and all be provided.
The sand filtering mechanism comprises a sand filtering cylinder arranged in the water outlet pipe and a filter screen assembly arranged in an inner cavity of the sand filtering cylinder, wherein a water inlet and a water outlet which are positioned on two sides of the filter screen assembly are arranged at two opposite ends of the side wall of the sand filtering cylinder, the water inlet is positioned on the water outlet side of the sand filtering cylinder, the water outlet is positioned on the water inlet side of the sand filtering cylinder, the water inlet is connected with a water inlet pipe, the water outlet is connected with a water outlet pipe, a first control valve is arranged on the water inlet pipe, and a second control valve.
The filter screen assembly comprises a first sand filtering net close to the water inlet and a second sand filtering net close to the water outlet, a water guide cavity is formed between the first sand filtering net and the second sand filtering net, a bypass pipe is arranged on the side wall of the sand filtering cylinder where the water guide cavity close to the side of the drain pipe is located, the bypass pipe is communicated with the drain pipe, and a control valve is arranged on the water guide pipe.
And a water supply pump is arranged on the water inlet pipe.
And a trash rack is arranged at the joint of the water outlet pipe and the emptying hole.
The accident gate is arranged on one side opposite to the outlet end of the water inlet main pipe.
The invention has the beneficial effects that: simple structure, and reasonable design, through set up the sand filtering mechanism at water supply and sluicing source, rivers get into in the sand filtering section of thick bamboo, and pass through second sand filtering net and first sand filtering net in proper order, effective filtration goes out the gravel and sand in the rivers, avoid the flow rate to reduce the problem that leads to the gravel and sand deposit in the downstream pipeline, sand filtering mechanism work after a period, accessible inlet tube and working pump are washed by water to the cartridge filter in, carry out the back flush operation to the filter screen, make the gravel and sand that filters off down, and lead to the sedimentation tank in through the drain pipe, the working property of sand filtering mechanism has been guaranteed, and realized water supply and sluicing operation through a pipeline, excellent in use effect.
Drawings
FIG. 1 is a schematic structural diagram of a water supply and drainage integrated system for small and medium-sized hydraulic engineering according to the present invention;
fig. 2 is a schematic structural diagram of a sand filtering mechanism of the invention.
In the figure: 1. a water inlet main pipe; 2. emptying a hole; 3. an accident gate; 4. a trash rack; 5. a water outlet pipe; 6. a sand filtering mechanism; 61. a sand filtering cylinder; 62. a water inlet; 63. a water outlet; 64. a screen assembly; 641. a first sand screen; 642. a second sand screen; 643. a water conduit; 644. a control valve; 645. a water guide cavity; 7. a water supply pipe; 8. a drain pipe; 9. a first service butterfly valve; 10. a second service butterfly valve; 11. a water inlet pipe; 12. a first control valve; 13. a drain pipe; 14. a second control valve; 15. a water supply pump; 16. and a working valve.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1 and 2, the water supply and drainage integrated system for small and medium-sized hydraulic engineering of the present invention includes a water inlet header pipe 1, a water supply pipe 7 and a drainage pipe 8, wherein an outlet end of the water inlet header pipe 1 is connected with a vent 2, one side wall of the vent 2 is provided with an accident gate 3, the other side wall of the vent 2 is provided with a water outlet pipe 5, ends of the water outlet pipe 5 are respectively connected with the water supply pipe 7 and the drainage pipe 8, the water supply pipe 7 is provided with a first maintenance butterfly valve 9, the drainage pipe 8 is provided with a second maintenance butterfly valve 10, a sand filtering mechanism 6 is connected in a pipeline of the water outlet pipe 5, and both ends of the sand filtering mechanism 6 connected.
The sand filtering mechanism 6 comprises a sand filtering cylinder 61 arranged in the water outlet pipe 5 and a filter screen assembly 64 arranged in the inner cavity of the sand filtering cylinder 61, wherein a water inlet 62 and a water outlet 63 which are positioned at two sides of the filter screen assembly 64 are arranged at two opposite ends of the side wall of the sand filtering cylinder 61, the water inlet 62 is positioned at the water outlet side of the sand filtering cylinder 61, the water outlet 63 is positioned at the water inlet side of the sand filtering cylinder 61, the water inlet 62 is connected with a water inlet pipe 11, the water outlet 63 is connected with a water outlet pipe 13, the water inlet pipe 11 is provided with a first control valve 12, and the water outlet pipe 13 is.
The screen assembly 64 comprises a first sand screen 641 adjacent to the water inlet 62 and a second sand screen 642 adjacent to the water outlet pipe 13, a water guide chamber 645 is formed between the first sand screen 641 and the second sand screen 642, a bypass pipe 643 is arranged on the side wall of the sand filtering cylinder 61 where the water guide chamber 645 close to the water outlet 63 is located, the bypass pipe 643 is communicated with the water outlet pipe 13, and a control valve 644 is arranged on the water guide pipe 643.
A water supply pump 15 is provided on the water inlet pipe 11. And a trash rack 4 is arranged at the joint of the water outlet pipe 5 and the emptying hole 2. The accident gate 3 is arranged on one side opposite to the outlet end of the water inlet main pipe 1.
The invention realizes the sand filtering operation on the water supply and drainage source, avoids the problem of sediment accumulation in the downstream pipeline, realizes the water supply and drainage functions through one pipeline and has good use effect. The water flow in the water outlet pipe 5 can realize water supply and drainage operation through the water supply pipe 7 and the drainage pipe 8 at the same time, thereby reducing the cost of additionally arranging pipelines; the water outlet pipe 5 is provided with a sand filtering mechanism 6, when the filter screen component 64 is cleaned, the working valve 16 at the upstream and downstream of the sand filtering mechanism 6 is closed, the first control valve 12 and the second control valve 14 are opened, and the flushed sand and stone enter the sedimentation tank along with water flow through the water outlet pipe 13 to be sedimentated and used subsequently.
The water inlet 62 and the water outlet 63 of the sand filtering mechanism 6 are used for carrying out back washing cleaning operation on the filter screen assembly 64 subsequently, and the filter screen assembly 64 is arranged in the inner cavity of the sand filtering cylinder 61. The filtering apertures of the first sand filtering net 641 and the second sand filtering net 642 are different, when water flow in the water outlet pipe 5 enters the sand filtering cylinder 61, the water flow passes through the two sand filtering nets in sequence to effectively filter sand and stone in the water flow, the filtered sand and stone are attached to the wall of the water inlet surface of the sand filtering net, a water guide cavity 645 is arranged between the first sand filtering net 641 and the second sand filtering net 642, a bypass pipe 643 is arranged on the side wall of the water guide cavity, the bypass pipe 643 is communicated with the water outlet pipe 13, and a control valve 644 is arranged on the water guide pipe 643. When the filter screen assembly 64 needs to be cleaned, the working valve 16 on the water outlet pipe 5 is closed, the first control valve 12 and the second control valve 14 are opened, clear water is filled into the sand filtering cylinder 61 through the water supply pump 15 and the water inlet pipe 11, water flow impacts the back water surface of the first sand filtering screen 641, so that sand and stones attached to the surface of the sand filtering screen are flushed down, the sand and stones flushed down by the first sand filtering screen 641 enter the bypass pipe 643 along with the water flow, and enter the water outlet pipe 13 from the water outlet 63, and the sand and stones flushed down by the second sand filtering screen 642 directly enter the water outlet pipe 13 along with the water flow through the water outlet 63.
The water inlet pipe 11 is provided with a water supply pump 15 for performing back flushing operation on a sand filtering net in the sand filtering cylinder 61, and the water outlet pipes 5 at the two ends of the sand filtering mechanism 6 are provided with working valves 16.
The water outlet pipe 5 and the emptying hole 2 are connected with a water inlet 62, and a trash rack 4 is arranged for preventing sundries from entering the water flow conveying pipeline.
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to carry out the same, and the present invention shall not be limited to the embodiments, i.e. the equivalent changes or modifications made within the spirit of the present invention shall fall within the scope of the present invention.
Claims (6)
1. The utility model provides a supply water and integrative system of sluicing for middle-size and small-size hydraulic engineering, including water inlet manifold (1), delivery pipe (7) and outlet pipe (8), a serial communication port, water inlet manifold (1) exit end is connected blow-down hole (2), one side wall of blow-down hole (2) is provided with accident gate (3), another side wall of blow-down hole (2) is provided with outlet pipe (5), delivery pipe (7) and outlet pipe (8) are connected respectively to outlet pipe (5) end, be provided with first maintenance butterfly valve (9) on delivery pipe (7), be provided with second maintenance butterfly valve (10) on outlet pipe (8), be connected with in outlet pipe (5) the pipeline and strain husky mechanism (6), strain husky mechanism (6) both ends of being connected with outlet pipe (5) and all be provided with work valve (16.
2. The water supply and drainage integrated system for the small and medium-sized hydraulic engineering according to claim 1, wherein the sand filtering mechanism (6) comprises a sand filtering cylinder (61) arranged in the water outlet pipe (5) and a filter screen assembly (64) arranged in an inner cavity of the sand filtering cylinder (61), a water inlet (62) and a water outlet (63) are arranged at two opposite ends of the side wall of the sand filtering cylinder (61) and are located at two sides of the filter screen assembly (64), the water inlet (62) is located at the water outlet side of the sand filtering cylinder (61), the water outlet (63) is located at the water inlet side of the sand filtering cylinder (61), a water inlet pipe (11) is connected to the water inlet (62), a water outlet pipe (13) is connected to the water outlet (63), a first control valve (12) is arranged on the water inlet pipe (11), and a second control valve (14) is arranged.
3. The water supply and drainage integrated system for small and medium-sized hydraulic engineering according to claim 2, wherein the screen assembly (64) comprises a first sand screen (641) adjacent to the water inlet (62) and a second sand screen (642) adjacent to the water outlet (63), a water guide cavity (645) is formed between the first sand screen (641) and the second sand screen (642), a bypass pipe (643) is arranged on the side wall of the sand filter cylinder (61) where the water guide cavity (645) close to the side of the drainage pipe (13) is located, the bypass pipe (643) is communicated with the drainage pipe (13), and a control valve (644) is arranged on the water guide pipe (643).
4. The water supply and drainage integrated system for small and medium-sized hydraulic engineering according to claim 2, wherein a water supply pump (15) is arranged on the water inlet pipe (11).
5. The water supply and drainage integrated system for the small and medium-sized hydraulic engineering according to claim 1, wherein a trash rack (4) is arranged at the joint of the water outlet pipe (5) and the emptying hole (2).
6. The water supply and drainage integrated system for small and medium-sized hydraulic engineering according to claim 1, wherein the accident gate (3) is arranged on the side opposite to the outlet end of the water inlet main pipe (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589894.8A CN111608144A (en) | 2020-06-24 | 2020-06-24 | Water supply and drainage integrated system for small and medium-sized hydraulic engineering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010589894.8A CN111608144A (en) | 2020-06-24 | 2020-06-24 | Water supply and drainage integrated system for small and medium-sized hydraulic engineering |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111608144A true CN111608144A (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010589894.8A Pending CN111608144A (en) | 2020-06-24 | 2020-06-24 | Water supply and drainage integrated system for small and medium-sized hydraulic engineering |
Country Status (1)
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| CN (1) | CN111608144A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421313A (en) * | 2015-12-28 | 2016-03-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for filling water and leveling pressure of ultrahigh water head gate |
| CN107326879A (en) * | 2016-04-29 | 2017-11-07 | 中国电建集团贵阳勘测设计研究院有限公司 | Transformation method and device for diversion tunnel of high dam reservoir |
| CN107476422A (en) * | 2017-09-29 | 2017-12-15 | 四川弘毅智慧知识产权运营有限公司 | A kind of anti-cleaning device for highway rainwater-collecting |
| CN109208532A (en) * | 2018-11-02 | 2019-01-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Water supply and drainage device for hydraulic engineering |
| CN109707000A (en) * | 2018-11-02 | 2019-05-03 | 中国电建集团贵阳勘测设计研究院有限公司 | Multipurpose water supply and drainage device for reservoir |
| CN212641390U (en) * | 2020-06-24 | 2021-03-02 | 中水北方勘测设计研究有限责任公司 | Water supply and drainage integrated system for small and medium-sized hydraulic engineering |
-
2020
- 2020-06-24 CN CN202010589894.8A patent/CN111608144A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105421313A (en) * | 2015-12-28 | 2016-03-23 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for filling water and leveling pressure of ultrahigh water head gate |
| CN107326879A (en) * | 2016-04-29 | 2017-11-07 | 中国电建集团贵阳勘测设计研究院有限公司 | Transformation method and device for diversion tunnel of high dam reservoir |
| CN107476422A (en) * | 2017-09-29 | 2017-12-15 | 四川弘毅智慧知识产权运营有限公司 | A kind of anti-cleaning device for highway rainwater-collecting |
| CN109208532A (en) * | 2018-11-02 | 2019-01-15 | 中国电建集团贵阳勘测设计研究院有限公司 | Water supply and drainage device for hydraulic engineering |
| CN109707000A (en) * | 2018-11-02 | 2019-05-03 | 中国电建集团贵阳勘测设计研究院有限公司 | Multipurpose water supply and drainage device for reservoir |
| CN212641390U (en) * | 2020-06-24 | 2021-03-02 | 中水北方勘测设计研究有限责任公司 | Water supply and drainage integrated system for small and medium-sized hydraulic engineering |
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