CN214695485U - Integrated 'leading-blocking-leading' multifunctional temporary ecological water drainage device - Google Patents
Integrated 'leading-blocking-leading' multifunctional temporary ecological water drainage device Download PDFInfo
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- CN214695485U CN214695485U CN202022404948.7U CN202022404948U CN214695485U CN 214695485 U CN214695485 U CN 214695485U CN 202022404948 U CN202022404948 U CN 202022404948U CN 214695485 U CN214695485 U CN 214695485U
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Abstract
The utility model discloses an integrated 'diversion-blocking-guidance' multifunctional temporary ecological water drainage device, which is positioned in a diversion tunnel (5), wherein the front end of the diversion tunnel (5) is provided with a diversion tunnel gate (4), and the tail end is provided with a plugging body (6); the device comprises a water diversion device (1), a water blocking device (2) and a water guide device (3) which are sequentially arranged along the flow direction of water flow; the water diversion device (1) consists of a gate preformed hole (1.1), a first section of steel pipe (1.2) and a first gate valve (1.3); two gate preformed hole (1.1) be located same height and be located diversion tunnel gate (4), gate preformed hole (1.1) on be provided with first steel pipe (1.2), it has overcome and has adopted single pre-buried steel pipe water guide mode among the prior art, the long shortcoming of low reaches river course ecological cutout time, have and reduce the ecological cutout time of low reaches river course to 1-2 days by 10 days, effectively reduce because of the advantage of the influence of ecological cutout to the low reaches river course.
Description
Technical Field
The utility model relates to interim downstream river discharge ecological flow technical field during water conservancy water and electricity diversion tunnel shutoff, more specifically is an integrated "draw-stifled-lead" multi-functional interim ecological water discharging device.
Background
For water conservancy and hydropower engineering, in order to meet the ecological basic requirement of the downstream river channel during the period of reservoir sluice storage, river water in the reservoir of the upstream river channel needs to be introduced to the downstream river channel.
At present, the methods commonly used in engineering mainly include 2 types, type 1: and (4) introducing the reservoir water at the upstream to a river channel at the downstream by adopting a water lifting mode through a mobile water pump (scheme one). Class 2: and (3) reserving a steel pipe in the single diversion tunnel plugging body (scheme II), and leading the reservoir water at the upstream to a downstream river channel in a self-flowing mode. Engineering practice shows that the two methods mainly have the following problems:
1. the water lifting operation cost of the mobile water pump is high;
the water pumping running time of the mobile water pump is continued from the lower gate of the diversion tunnel until the water level of the reservoir is stored to the inlet elevation of the permanent ecological water discharging building. In order to be beneficial to plugging work of the diversion tunnel, the water storage time of the lower gate of the diversion tunnel is generally selected to be carried out in a dry season, and for rivers with small runoff in the dry season, the water storage time is longer and even lasts for half a year from the lower gate of the diversion tunnel to the water level storage of a reservoir to the inlet elevation of a permanent ecological water release building due to small flow, and the defects of long water pump operation time and high cost exist in the temporary water lifting of the mobile water pump for conveying water to the downstream. From the perspective of saving investment, for a river with small flow in the dry season, a mode of adopting a mobile water pump to lift water for temporary ecological water discharge is not feasible (scheme one).
2. A single embedded steel pipe water guiding mode is adopted, and the ecological cutoff time of a downstream river is long;
the method is characterized in that a mode of ecological flow discharge is carried out by adopting a single pre-buried steel pipe of the diversion tunnel plugging body, firstly, the steel pipe is welded with a reserved hole of a diversion tunnel gate, and then, an integral water discharge steel pipe is formed by welding all sections of steel pipes, so that the aim of ecological water supply to a downstream river channel is fulfilled. However, for the project that the diversion tunnel blocking body is far away from the inlet gate, the steel pipe sections need to be welded and can reach dozens of sections, the construction period is about 10 days, and the cost of the steel pipes is about 50 ten thousand yuan, which means that in the stage of welding the steel pipes, the upstream reservoir cannot supply ecological water to the downstream river channel, and the downstream river channel faces the flow breaking time of 10 days, so that the influence on the downstream ecology is large (scheme two).
Therefore, there is a strong need for a device to solve the above problems.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide an integrated 'leading-blocking-leading' multifunctional temporary ecological water drainage device.
The utility model aims at being implemented through the following technical scheme: an integrated 'diversion-blocking-guidance' multifunctional temporary ecological water drainage device is positioned in a diversion tunnel, the front end of the diversion tunnel is provided with a diversion tunnel gate, and the tail end of the diversion tunnel is provided with a blocking body;
the water diversion device, the water blocking device and the water guide device are sequentially arranged along the flow direction of the water flow.
In the above technical scheme: the water diversion device consists of a gate preformed hole, a first section of steel pipe and a first gate valve;
two the gate preformed hole be located same height and be located the diversion tunnel gate, the gate preformed hole on be provided with first steel pipe, the end of first steel pipe stretch into to water blocking device in to it is even as an organic whole with the second section steel pipe in the water blocking device, first steel pipe end be provided with first gate valve.
In the above technical scheme: the water plugging device is formed by piling clay woven bags, the clay woven bags are positioned above the second section of steel pipe, one end of the second section of steel pipe is connected with the first section of steel pipe in the water diversion device, and the other end of the second section of steel pipe is connected with the third section of steel pipe in the water diversion device.
In the above technical scheme: the water guide device consists of a third section of steel pipe and a second gate valve; the third section of steel pipe is pre-buried in the plugging body, the front end of the third section of steel pipe is sleeved with the second section of steel pipe, and the tail end of the third section of steel pipe is provided with a second gate valve.
In the above technical scheme: the inlet section of the first section of steel pipe is 50cm-100cm away from the diversion tunnel bottom plate, the tail end of the first section of steel pipe is about 20cm-30cm away from the diversion tunnel bottom plate, the tail end of the first section of steel pipe is provided with a first gate valve, and the pipe diameter of the first section of steel pipe is 100 mm.
In the above technical scheme: the diameter of the gate preformed hole is 80mm, the gate preformed hole is divided into two holes, the two holes are symmetrically arranged, and the horizontal distance between the two holes is 100-300 cm.
In the above technical scheme: the diameter of the first steel pipe is larger than that of the gate preformed hole, the diameter of the first section of steel pipe is 100mm, and the wall thickness of the wall of the first section of steel pipe is 8 mm.
In the above technical scheme: the water plugging device is formed by a double-row clay woven bag stacking mode, clay is filled in the woven bag, the length, width and thickness of the clay woven bag are 80cm multiplied by 40cm multiplied by 15cm, and the stacking height is 1.5 m.
In the above technical scheme: the water guide device is in a double-row third-section steel pipe type, the horizontal distance between the two rows of third-section steel pipes is 100cm-200cm, and the distance between the third-section steel pipes and the bottom plate of the diversion tunnel is about 20cm-30 cm.
In the above technical scheme: each row of the third section of steel pipes is formed by welding three sections of sub-steel pipes, each section of the sub-steel pipe is 6m long, 100mm in diameter and 8mm in wall thickness, the end part of the first section of the sub-steel pipe extends into the water plugging device built by the clay woven bags, the pipe bodies of the second section of the sub-steel pipe and the third section of the sub-steel pipe are embedded in a plugging body in the diversion tunnel, and the length of the third section of the sub-steel pipe extending out of the plugging body is larger than 10 cm.
The utility model has the advantages of as follows: 1. the utility model discloses to the little and diversion tunnel shutoff body of way low water period flow and the hydraulic and hydroelectric engineering far away of gate distance, solved better and adopted the removal pump station to carry out interim ecology and drain and have the expense height, adopt single pre-buried steel pipe mode of draining, a series of problems such as low reaches river course ecology cutout time length.
2. The utility model reduces the cost of temporary ecological water discharge engineering;
if the downstream river ecological flow is 2m3And/s, the average water lifting lift is 40m, the distance between the diversion tunnel inlet gate and the plugging body is 120m, the time required from reservoir water storage to the inlet elevation of the permanent ecological water release building is 5 months, and the calculation is as follows: a mobile pump station is adopted for water lifting (scheme one), and the required engineering cost is 211 ten thousands; a single pre-buried steel pipe water discharging mode (scheme two) is adopted, and the required cost is 58 thousands; adopt the utility model discloses the device, required engineering cost is 18 ten thousand, compares and saves 153 ten thousand in scheme one, compares and saves 40 ten thousand in scheme two, can know from this, adopts the utility model discloses the device will effectively reduce interim ecological engineering cost that drains.
3. The downstream river channel ecological cutoff time is shortened to 1-2 days;
the utility model discloses a water blocking device has realized the interior water level harmony height of diversion tunnel, can effectively reduce gate to the shutoff body between steel pipe length, to the water conservancy and hydropower engineering far away of gate distance, it reduces steel pipe length and can reach 100m to the time of welding cost between each section steel pipe has been reduced, and then has realized that the water guiding device leads to water fast. Engineering practice shows, adopts the utility model discloses the device is than traditional single pre-buried steel pipe mode of draining, can reduce the ecological cutout time of low reaches river course to 1-2 days by 10 days, effectively reduces because of the influence of ecological cutout to the low reaches river course.
Drawings
Fig. 1 is a longitudinal sectional view of the present invention.
Fig. 2 is a plan view of the present invention.
Fig. 3 is a cross sectional view of the front end of the water diversion device of the utility model.
Fig. 4 is a cross sectional view of the rear end of the water diversion device of the present invention.
Fig. 5 is a cross-sectional view of the water shutoff device of the present invention.
Fig. 6 is a cross-sectional view of the water guide device of the present invention.
Fig. 7 is a large picture of the clay woven bag of the present invention.
Fig. 8 is a large drawing of a steel pipe in the present invention.
In the figure: the water diversion device 1, the gate preformed hole 1.1, the first section steel pipe 1.2, the first gate valve 1.3, the water shutoff device 2, the clay woven bag 2.1, the second section steel pipe 2.2, the water diversion device 3, the third section steel pipe 3.1, the second gate valve 3.2, the diversion tunnel gate 4, the diversion tunnel 5, the plugging body 6. In the figure, the triangles represent water lines and the arrows represent water flow directions.
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.
Referring to FIGS. 1-8: an integrated 'diversion-blocking-guidance' multifunctional temporary ecological water drainage device is positioned in a diversion tunnel 5, the front end of the diversion tunnel 5 is provided with a diversion tunnel gate 4, and the tail end is provided with a blocking body 6;
the water diversion device 1, the water blocking device 2 and the water diversion device 3 are sequentially arranged along the flow direction of the water flow;
the water diversion device 1 consists of a gate preformed hole 1.1, a first section of steel pipe 1.2 and a first gate valve 1.3;
the two gate preformed holes 1.1 are positioned at the same height and positioned on a gate 4 of the diversion tunnel, a first steel pipe 1.2 is arranged on each gate preformed hole 1.1, the tail end of each first steel pipe 1.2 extends into the water plugging device 2 and is connected with a second section of steel pipe 2.2 in the water plugging device 2 into a whole, and a first gate valve 1.3 is arranged at the tail end of each first steel pipe 1.2;
the water plugging device 2 is formed by piling clay woven bags 2.1, the clay woven bags 2.1 are positioned above a second section of steel pipe 2.2, one end of the second section of steel pipe 2.2 is connected with a first section of steel pipe 1.2 in the water diversion device 1, and the other end of the second section of steel pipe is connected with a third section of steel pipe 3.1 in the water diversion device 3;
the water guide device 3 consists of a third section of steel pipe 3.1 and a second gate valve 3.2; the third section of steel pipe 3.1 is pre-buried in the plugging body 6, the front end of the third section of steel pipe is sleeved with the second section of steel pipe 2.2, and the tail end of the third section of steel pipe 3.1 is provided with a second gate valve 3.2.
The distance between the inlet section of the first section of steel pipe 1.2 and the bottom plate of the diversion tunnel 5 is 50cm-100cm, the distance between the tail end of the first section of steel pipe and the bottom plate of the diversion tunnel is about 20cm-30cm, the tail end of the first section of steel pipe is provided with a first gate valve 1.3, and the pipe diameter of the first section of steel pipe 1.2 is 100 mm. The first section steel pipe 1.2 realizes by the gate forward to the diversion function behind the gate, realizes rivers attitude control through the gate valve.
The diameter of the gate preformed hole 1.1 is 80mm, the two holes are arranged in total, the two holes are symmetrically arranged, and the horizontal distance between the two holes is 100cm-300 cm. The symmetrical arrangement of the gate preformed holes 1.1 realizes the function of leading water to the back of the gate from the front of the gate.
The diameter of the first steel pipe 1.2 is larger than the diameter of the gate preformed hole 1.1, the diameter of the first section of steel pipe 1.2 is 100mm, and the wall thickness of the wall of the first section of steel pipe 1.2 is 8 mm. The diameter of the first steel pipe 1.2 is larger than the diameter of the gate preformed hole 1.1, so that a water diversion function from the front of the gate to the back of the gate is realized, and the two first steel pipes 1.2 are mutually standby.
The water plugging device 2 is formed by stacking double rows of clay woven bags 2.1, clay is filled in the woven bags, the length, width and thickness of the clay woven bags 2.1 are 80cm multiplied by 40cm multiplied by 15cm, and the stacking height is 1.5 m. The clay woven bag 2.1 achieves the purpose of water plugging and provides conditions for construction of a water guiding device and a plugging body dry hole.
The water guide device 3 is in a double-row third-section steel pipe 3.1 type, the horizontal distance between the two rows of third-section steel pipes 3.1 is 100cm-200cm, and the distance between the third-section steel pipes 3.1 and the bottom plate of the diversion tunnel 4 is about 20cm-30 cm. The water guide device 3 realizes the function that water flow is guided to the downstream of the plugging body by the water plugging device.
Each row of the third section of the steel pipe 3.1 is formed by welding three sections of sub-steel pipes, each section of the sub-steel pipe is 6m long, 100mm in diameter and 8mm in wall thickness, the end part of the first section of the sub-steel pipe extends into the water plugging device 2 built by the clay woven bag 2.1, pipe bodies of the second section of the sub-steel pipe and the third section of the sub-steel pipe are embedded in a plugging body 6 in the diversion tunnel 5, and the length of the third section of the sub-steel pipe extending out of the plugging body 6 is more than 10 cm.
The utility model discloses still include a method of draining: a method for integrating a 'guide-block-guide' multifunctional temporary ecological water discharging device comprises the following steps;
firstly, installing a water diversion device: reserving 2 gate preformed holes 1.1 on a diversion tunnel gate 4 according to a drawing, wherein the gate preformed holes 1.1 are connected with first section steel pipes 1.2 in a welding mode, and simultaneously, installing a first gate valve 1.3 at the tail ends of the two first section steel pipes 1.2 respectively;
secondly, installing a water plugging device: closing a first gate valve 1.3 in the diversion device 1 to ensure that the diversion tunnel 5 has dry tunnel construction conditions, and stacking clay woven bags 2.1 filled with clay to a design height in a building mode according to two rows;
thirdly, installing a water guide device: welding a third section of steel pipe 3.1 in the water guide device 3 and installing a second section of steel pipe 2.2 in the water blocking device 2 synchronously, embedding the third section of steel pipe 3.1 in the water guide device 3 into the clay woven bag 2.1 after the water blocking device 2 is built to the pre-embedded height of the end part of the water guide device 3, continuously building the water blocking device 2, and installing a second gate valve 3.2 at the tail end of the water guide device 3;
fourthly, downstream water supply: after the construction of the water blocking device 2 and the water guide device 3 is completed, a first gate valve 1.3 at the tail end of the water guide device 1 is opened, the water level of a diversion tunnel 5 between a diversion tunnel gate 4 and the water blocking device 2 is continuously blocked, and after the water level is blocked to the inlet elevation of a third section of steel pipe 3.1 in the water guide device 3, the purpose of temporarily supplying water to the downstream is realized in a self-flowing mode through the water guide device 3;
fifthly, constructing the plugging body of the diversion tunnel: the water blocking device 2 can ensure that the blocking body 6 in the diversion tunnel 5 has dry land construction conditions, concrete pouring of the blocking body 6 is completed under the dry land construction conditions, and the water guide device 3 is embedded in the blocking body 6 according to the specified requirements;
plugging a water guide device: and after the reservoir stores water to the inlet elevation of the permanent ecological water release building, closing a second gate valve 3.2 at the tail end of the water guide device 3, and performing concrete plugging on a third section of steel pipe 3.1 in the water guide device 3.
The above-mentioned parts not described in detail are prior art.
Claims (7)
1. An integrated 'diversion-blocking-guidance' multifunctional temporary ecological water drainage device is positioned in a diversion tunnel (5), the front end of the diversion tunnel (5) is provided with a diversion tunnel gate (4), and the tail end is provided with a blocking body (6);
the method is characterized in that: the water diversion device (1) consists of a gate preformed hole (1.1), a first section of steel pipe (1.2) and a first gate valve (1.3);
the two gate preformed holes (1.1) are positioned at the same height and on the diversion tunnel gate (4), a first steel pipe (1.2) is arranged on the gate preformed hole (1.1), the tail end of the first steel pipe (1.2) extends into the water plugging device (2), and is connected with a second section of steel pipe (2.2) in the water plugging device (2) into a whole, the tail end of the first steel pipe (1.2) is provided with a first gate valve (1.3), the water plugging device (2) is formed by piling clay woven bags (2.1), the clay woven bags (2.1) are positioned above the second section of steel pipe (2.2), one end of the second section of steel pipe (2.2) is connected with the first section of steel pipe (1.2) in the water diversion device (1), the other end is connected with the third section of steel pipe (3.1) in the water diversion device (3), the water guide device (3) consists of a third section of steel pipe (3.1) and a second gate valve (3.2); the third section of steel pipe (3.1) is pre-buried in the plugging body (6), the front end of the third section of steel pipe is sleeved with the second section of steel pipe (2.2), and the tail end of the third section of steel pipe (3.1) is provided with a second gate valve (3.2).
2. The integrated 'guide-block-guide' multifunctional temporary ecological water discharging device as claimed in claim 1, wherein: the inlet section of the first section of steel pipe (1.2) is 50cm-100cm away from the bottom plate of the diversion tunnel (5), the tail end of the first section of steel pipe is about 20cm-30cm away from the bottom plate of the diversion tunnel, the tail end of the first section of steel pipe is provided with a first gate valve (1.3), and the pipe diameter of the first section of steel pipe (1.2) is 100 mm.
3. The integrated 'guide-block-guide' multifunctional temporary ecological water discharging device as claimed in claim 2, wherein: the diameter of the gate preformed hole (1.1) is 80mm, the two holes are arranged symmetrically, and the horizontal distance between the two holes is 100-300 cm.
4. The integrated 'guide-block-guide' multifunctional temporary ecological water discharging device as claimed in claim 3, wherein: the diameter of the first steel pipe (1.2) is larger than that of the gate preformed hole (1.1), the diameter of the first section of steel pipe (1.2) is 100mm, and the wall thickness of the pipe wall of the first section of steel pipe (1.2) is 8 mm.
5. The integrated 'guide-block-guide' multifunctional temporary ecological water discharging device as claimed in claim 1, wherein: the water plugging device (2) is formed by stacking double rows of clay woven bags (2.1), clay is filled in the woven bags, the length, width and thickness of the clay woven bags (2.1) are 80cm multiplied by 40cm multiplied by 15cm, and the stacking height is 1.5 m.
6. The integrated 'guide-block-guide' multifunctional temporary ecological water discharging device as claimed in claim 1, wherein: the water guide device (3) is in a double-row third-section steel pipe (3.1) type, the horizontal distance between the two rows of third-section steel pipes (3.1) is 100-200 cm, and the distance between the third-section steel pipes (3.1) and the bottom plate of the diversion tunnel (5) is about 20-30 cm.
7. The integrated 'guide-block-guide' multifunctional temporary ecological water discharging device as claimed in claim 6, wherein: each row of the third section of steel pipe (3.1) is formed by welding three sections of sub-steel pipes, each section of sub-steel pipe is 6m long, 100mm in diameter and 8mm in wall thickness, the end part of the first section of sub-steel pipe extends into the water plugging device (2) built by the clay woven bag (2.1), the pipe bodies of the second section of sub-steel pipe and the third section of sub-steel pipe are embedded in a plugging body (6) in the diversion tunnel (5), and the length of the third section of sub-steel pipe extending out of the plugging body (6) is larger than 10.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022404948.7U CN214695485U (en) | 2020-10-26 | 2020-10-26 | Integrated 'leading-blocking-leading' multifunctional temporary ecological water drainage device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022404948.7U CN214695485U (en) | 2020-10-26 | 2020-10-26 | Integrated 'leading-blocking-leading' multifunctional temporary ecological water drainage device |
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| CN214695485U true CN214695485U (en) | 2021-11-12 |
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| CN202022404948.7U Active CN214695485U (en) | 2020-10-26 | 2020-10-26 | Integrated 'leading-blocking-leading' multifunctional temporary ecological water drainage device |
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