CN209836952U - Device for temporarily lowering ecological flow in water storage period of concrete dam - Google Patents
Device for temporarily lowering ecological flow in water storage period of concrete dam Download PDFInfo
- Publication number
- CN209836952U CN209836952U CN201920330999.4U CN201920330999U CN209836952U CN 209836952 U CN209836952 U CN 209836952U CN 201920330999 U CN201920330999 U CN 201920330999U CN 209836952 U CN209836952 U CN 209836952U
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- China
- Prior art keywords
- ecological flow
- steel pipe
- plugging
- pipe
- dam
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 49
- 239000010959 steel Substances 0.000 claims abstract description 49
- 239000010813 municipal solid waste Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 description 10
- 239000004570 mortar (masonry) Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009194 climbing Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Abstract
The utility model discloses a device for temporarily lowering ecological flow during the water storage period of a concrete dam, which comprises a lowering ecological flow steel pipe, wherein the lowering ecological flow steel pipe is arranged in a vertical Z shape and is pre-embedded in the concrete of the dam body and passes through a bottom grouting gallery; a trash rack, a hydraulic control valve, a plugging exhaust steel pipe and a plugging grouting pipe are sequentially arranged at the water inlet end of the lower ecological flow steel pipe; and an eccentric half ball valve is arranged on a pipe section of the downward ecological flow steel pipe, which is positioned in the reserved ball valve operating chamber at the bottom of the bottom grouting gallery. The utility model discloses can effectively solve the problem that ecological flow and later stage shutoff were transferred temporarily during the sluice retaining under the concrete dam.
Description
Technical Field
The utility model relates to a concrete dam retaining phase transfers device of ecological flow temporarily belongs to hydraulic and hydroelectric engineering technical field.
Background
The concrete dam of the hydraulic and hydroelectric engineering is limited by construction process conditions and is influenced by engineering cost, and a drainage channel is usually not arranged at the bottom of the concrete dam. During the period of water storage of the lower gate of the diversion tunnel, ecological flow cannot be transferred through the permanent building between the elevation of the bottom plate of the diversion tunnel and the elevation of the bottom of the permanent water drainage system. In the prior art, a gate shaft is generally arranged at an inlet, holes are reserved in a dam body, and after ecological flow is issued, the holes reserved in advance are blocked by a lower gate. Or burying a steel pipe in the dam body, arranging a control valve in the dam, closing the control valve in the dam after the ecological flow is discharged, and plugging the steel pipe at the rear section of the control valve. The two modes have the problems of different degrees, the installation and debugging period of the gate is longer by adopting the method of arranging the plugging gate well at the inlet, the bottom dam body is not utilized for quick construction, and the arrangement of the gate at the inlet is not economical enough. The method for burying the steel pipe in the dam body can not ensure the close sealing of the steel pipe at the front section of the control valve in the dam after water storage under the action of a high water head.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that ecological flow and later stage shutoff were transferred temporarily during concrete dam lower brake retaining, providing a novel problem of transferring ecological flow method and solving the later stage shutoff.
The utility model discloses a realize like this: firstly, the utility model provides a method for ecological flow is transferred temporarily in concrete dam retaining period, this method arranges the position through changing the dam body steel pipe, arranges eccentric hemisphere valve in dam body corridor bottom, controls the ecological flow that lets out down. A Y-shaped double-cavity hydraulic control valve is arranged at the inlet of a steel pipe of the dam body, the opening and closing and the opening of the valve are controlled through the medium pressure of the valve, and the inlet valve is closed according to the pressure value set in advance by the Y-shaped double-cavity hydraulic control valve after the water storage height meets the condition. And a steel pipe between the eccentric half ball valve and the Y-shaped double-cavity hydraulic control valve is plugged through an exhaust pipe and a grouting pipe arranged at the inlet.
In order to realize the method, the utility model adopts the device for temporarily lowering the ecological flow during the water storage period of the concrete dam, which comprises a lowering ecological flow steel pipe, wherein the lowering ecological flow steel pipe is arranged in a vertical Z shape and is pre-embedded in the concrete of the dam body and passes through the bottom grouting gallery; a trash rack, a hydraulic control valve, a plugging exhaust steel pipe and a plugging grouting pipe are sequentially arranged at the water inlet end of the lower ecological flow steel pipe; and an eccentric half ball valve is arranged on a pipe section of the downward ecological flow steel pipe, which is positioned in the reserved ball valve operating chamber at the bottom of the bottom grouting gallery.
Wherein, the hydraulic control valve adopts a Y-shaped double-cavity structure.
Furthermore, the eccentric half ball valve and the hydraulic control valve are connected with the pre-buried downward ecological flow steel pipe through flanges.
Furthermore, the trash rack, the plugging grouting pipe and the plugging exhaust steel pipe are connected with the pre-buried downward ecological flow steel pipe in a welding mode.
Compared with the prior art, the utility model discloses following technological effect has:
(1) the downward ecological flow steel pipe is arranged in a vertical Z shape, and the horizontal anti-slip force of the steel pipe is increased in the downward process; in the plugging process, the steel pipe at the upstream section of the ball valve is plugged and compacted from bottom to top by adopting self-compacting mortar.
(2) This set of device is releasing ecological flow in-process under, along with the flood peak improves, steerable eccentric half ball valve opening, ecological flow size is transferred in the control.
(3) The Y-shaped double-cavity hydraulic control valve can automatically close the inlet valve by adjusting the inlet pressure value. Thus, the inlet section valve can be automatically closed, and underwater operation is avoided.
(4) The inlet section is provided with a plugging exhaust steel pipe and a plugging grouting pipe, high-pressure self-compacting mortar is poured from the plugging grouting pipe, and when the mortar returns from the plugging exhaust steel pipe, the front section steel pipe can be guaranteed to be tightly plugged.
Drawings
FIG. 1 is a cross-sectional view of a temporary ecological flow lowering device for a dam;
FIG. 2 is a plan view of a temporary ecological flow lowering device for a dam body;
fig. 3 is the flow chart of the lowering ecological flow and plugging of the present invention.
The labels in the figures are: 1-lowering ecological flow steel pipe, 2-eccentric half ball valve, 3-hydraulic control valve, 4-plugging grouting pipe, 5-plugging exhaust steel pipe, 6-trash rack, 7-reserving ball valve operating room, 8-bottom grouting gallery, 9-ladder stand and 10-dam body concrete.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1-2, the device of the present invention comprises a downward ecological flow steel pipe 1, wherein the downward ecological flow steel pipe 1 is arranged in a vertical Z-shape, and the downward ecological flow steel pipe 1 is pre-embedded in dam concrete 10 and passes through a bottom grouting gallery 8; a trash rack 6, a hydraulic control valve 3, a plugging exhaust steel pipe 5 and a plugging grouting pipe 4 are sequentially arranged at the water inlet end of the lower ecological flow steel pipe 1; an eccentric half ball valve 2 is arranged on a pipe section of the lower ecological flow steel pipe 1, which is positioned in a reserved ball valve operating chamber 7 at the bottom of a bottom grouting gallery 8. A climbing ladder 9 is arranged in the reserved ball valve operating chamber 7 so as to be convenient for people to go up and down.
Wherein, the hydraulic control valve 3 adopts a Y-shaped double-cavity structure. The eccentric half-ball valve 2 and the hydraulic control valve 3 are connected with the pre-buried downward ecological flow steel pipe 1 through flanges. The trash rack 6, the plugging grouting pipe 4 and the plugging exhaust steel pipe 5 are connected with the pre-buried downward ecological flow steel pipe 1 in a welding mode.
The utility model discloses during the implementation, transfer ecological flow steel pipe 1 through the change and arrange the position, arrange eccentric hemisphere valve 2 in dam body bottom grouting corridor 8, control lets out ecological flow down. The hydraulic control valve 3 with the Y-shaped double-cavity structure is arranged at the inlet of the downward ecological flow steel pipe 1, the opening and closing and the opening of the valve are controlled by the medium pressure of the hydraulic control valve 3, and after the water storage height meets the condition, the inlet valve is closed according to the pressure value set in advance by the hydraulic control valve 3 with the Y-shaped double-cavity structure. The ecological flow steel pipe 1 is placed between the eccentric semi-ball valve 2 and the hydraulic control valve 3 of the Y-shaped double-cavity structure through the plugging exhaust steel pipe 5 and the plugging grouting pipe 4 which are arranged at the inlet. The specific implementation steps of the present invention are shown in fig. 3.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (4)
1. The utility model provides a device of ecological flow is transferred temporarily in concrete dam retaining period which characterized in that: the ecological flow steel pipe (1) is arranged in a vertical Z shape, and the ecological flow steel pipe (1) is pre-buried in dam concrete (10) and penetrates through a bottom grouting gallery (8); a trash rack (6), a hydraulic control valve (3), a plugging exhaust steel pipe (5) and a plugging grouting pipe (4) are sequentially arranged at the water inlet end of the lower ecological flow steel pipe (1); an eccentric half ball valve (2) is arranged on a pipe section of the lower ecological flow steel pipe (1) in the reserved ball valve operating chamber (7) at the bottom of the bottom grouting gallery (8).
2. The apparatus for temporarily lowering ecological flow in the impoundment period of the concrete dam as claimed in claim 1, wherein: the hydraulic control valve (3) adopts a Y-shaped double-cavity structure.
3. The apparatus for temporarily lowering ecological flow in the impoundment period of the concrete dam as claimed in claim 1, wherein: the eccentric half-ball valve (2) and the hydraulic control valve (3) are connected with the pre-buried downward ecological flow steel pipe (1) through flanges.
4. The apparatus for temporarily lowering ecological flow in the impoundment period of the concrete dam as claimed in claim 1, wherein: the trash rack (6), the plugging grouting pipe (4) and the plugging exhaust steel pipe (5) are connected with the pre-buried downward ecological flow steel pipe (1) in a welded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920330999.4U CN209836952U (en) | 2019-03-15 | 2019-03-15 | Device for temporarily lowering ecological flow in water storage period of concrete dam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920330999.4U CN209836952U (en) | 2019-03-15 | 2019-03-15 | Device for temporarily lowering ecological flow in water storage period of concrete dam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209836952U true CN209836952U (en) | 2019-12-24 |
Family
ID=68906431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920330999.4U Withdrawn - After Issue CN209836952U (en) | 2019-03-15 | 2019-03-15 | Device for temporarily lowering ecological flow in water storage period of concrete dam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209836952U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853490A (en) * | 2019-03-15 | 2019-06-07 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of concrete dam water storage phase temporarily transfers the method and apparatus of ecological flow |
| CN113005996A (en) * | 2021-02-25 | 2021-06-22 | 中国电建集团北京勘测设计研究院有限公司 | Plugging structure of temporary ecological flow tube of hydraulic and hydroelectric engineering |
-
2019
- 2019-03-15 CN CN201920330999.4U patent/CN209836952U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109853490A (en) * | 2019-03-15 | 2019-06-07 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of concrete dam water storage phase temporarily transfers the method and apparatus of ecological flow |
| CN109853490B (en) * | 2019-03-15 | 2024-03-01 | 中国电建集团贵阳勘测设计研究院有限公司 | Method and device for temporarily lowering ecological flow in water storage period of concrete dam |
| CN113005996A (en) * | 2021-02-25 | 2021-06-22 | 中国电建集团北京勘测设计研究院有限公司 | Plugging structure of temporary ecological flow tube of hydraulic and hydroelectric engineering |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191224 Effective date of abandoning: 20240301 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191224 Effective date of abandoning: 20240301 |