CN213204015U - Water inlet structure suitable for bidirectional water flow and large-amplitude water head - Google Patents
Water inlet structure suitable for bidirectional water flow and large-amplitude water head Download PDFInfo
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- CN213204015U CN213204015U CN202021932046.4U CN202021932046U CN213204015U CN 213204015 U CN213204015 U CN 213204015U CN 202021932046 U CN202021932046 U CN 202021932046U CN 213204015 U CN213204015 U CN 213204015U
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Abstract
The utility model relates to an adapt to two-way rivers and water inlet structure of greatly becoming width of cloth flood peak, including setting gradually trash rack between reservoir and dam body, first way work gate, gate hard shoulder, second way work gate and maintenance gate, the gate hard shoulder sets up at water inlet lateral wall middle part, and first way work gate sets up between water inlet bottom and gate hard shoulder, and second way work gate sets up between gate hard shoulder and water inlet top, and the maintenance gate sets up between water inlet bottom and water inlet top, and the dam body bottom is provided with the rivers passageway. The utility model discloses water inlet structure not only is applicable to the big amplitude of fluctuation flood peak, is applicable to two-way rivers moreover, and occupation space is little simultaneously, and the construction is low with the management operation degree of difficulty, and engineering cost is low, is convenient for drop into in-service use.
Description
Technical Field
The utility model belongs to the technical field of hydraulic and hydroelectric engineering, a water inlet structure that adapts to two-way rivers and greatly becomes width of cloth flood peak is related to.
Background
In the construction of hydraulic and hydroelectric projects, many projects involve water inlet structures. The water flow conditions of the water inlet structure of the general hydraulic and hydroelectric engineering are unidirectional flow, namely, the water flows from a reservoir into a water inlet, then enters a water guide channel, and then enters a water turbine generator set for power generation or is conveyed to a water using client through a water supply pipeline, and the like, so that economic and social benefits are generated in the engineering. Generally, water flow of a water inlet flows in a unidirectional mode, a trash rack is arranged at the foremost end of the water inlet, and an accident maintenance gate, a working gate and a flow channel (a tunnel, a pipeline and the like) are sequentially arranged behind the trash rack.
At present, water conservancy and hydropower engineering generally separately sets up delivery port and water inlet, arranges a delivery port that goes out the reservoir alone promptly, according to the engineering needs again, arranges a water inlet that advances the reservoir alone, and this kind of structure possesses corresponding diversion, water supply function respectively, satisfies corresponding engineering construction task demand, and two water inlet structures are independently arranged, do not influence each other, exert the function alone, nevertheless need arrange two structure buildings, and the required arrangement space is big, the engineering investment is high, construction period is long. In addition, the water head amplitude of the water inlet of the general hydraulic and hydroelectric engineering is below 30-50 meters, the water inlet with the water head amplitude exceeding 30-50 meters is extremely small, and the water inlet is arranged in a split-elevation mode for the high water head amplitude generally for engineering safety, so that the design difficulty, the construction difficulty and the engineering management operation difficulty are increased, the occupied space is increased, the engineering investment is increased, and the engineering benefit is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adapt to two-way rivers and the water inlet structure of greatly becoming width of cloth flood peak has solved the two-way rivers of current reservoir engineering and has become width of cloth flood peak water inlet occupation space big, the high problem of investment greatly.
The utility model provides a technical scheme who adopts is, a water inlet structure that adapts to two-way rivers and greatly become width of cloth flood peak, including setting gradually trash rack between reservoir and dam body, first way work gate, gate hard shoulder, second way work gate and maintenance gate, the gate hard shoulder sets up at the water inlet middle part, and first way work gate sets up between water inlet bottom and gate hard shoulder, and second way work gate sets up between gate hard shoulder and water inlet top, overhauls the gate setting between water inlet bottom and water inlet top, and the dam body bottom is provided with the rivers passageway.
The utility model is also characterized in that,
and a water guide channel communicated with the water flow channel is arranged outside the dam body.
The trash rack is connected with the side surface and the bottom surface of the water inlet.
And two opposite side walls of the water inlet are provided with a trash rack gate slot, a first working gate slot, a second working gate slot and an overhaul gate slot.
The top parts of the first working gate and the second working gate are respectively provided with a hydraulic machine for opening and closing the gates, and the top part of the maintenance gate is provided with a fixed winch.
The top of the water inlet is provided with a hoist lock chamber, and the hydraulic machine is arranged inside the hoist lock chamber.
The beneficial effects of the utility model are that, through setting up first work gate, second way work gate and gate hard shoulder, can adjust opening and close of first work gate and second way work gate according to the flood peak height, make this water inlet structure not only be applicable to greatly become the flood peak, be applicable to two-way rivers moreover, occupation space is less simultaneously, the construction reduces with the management operation degree of difficulty, engineering cost saves, is convenient for drop into in-service use.
Drawings
Fig. 1 is a schematic structural diagram of a water inlet structure adapted to bidirectional water flow and a large amplitude water head of the present invention;
fig. 2 is the utility model discloses a section structure sketch map of water inlet structure of adaptation two-way rivers and greatly become width of cloth flood peak.
In the figure, 1, a trash rack, 2, a first working gate, 3, a second working gate, 4, gate isolation piers, 5, an inspection gate, 6, a water flow channel, 7, a water diversion channel, 8, a dam body and 9, a hoist lock house.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to a water inlet structure that adapts to two-way rivers and greatly become width of cloth flood peak refers to fig. 1 and fig. 2, including trash rack 1, first work gate 2, gate hard shoulder 4, second way work gate 3 and the maintenance gate 5 that sets gradually between reservoir and dam body 8, gate hard shoulder 4 sets up at water inlet lateral wall middle part, and dam body 8 highly is 141.5m, and gate hard shoulder 4 is apart from water inlet bottom surface 50 m.
The first working gate 2 is arranged between the bottom of the water inlet and the gate isolation pier 4, the second working gate 3 is arranged between the gate isolation pier 4 and the top of the water inlet, and the maintenance gate 5 is arranged between the bottom of the water inlet and the top of the water inlet.
Hydraulic presses for opening and closing the gates are respectively arranged at the tops of the first working gate 2 and the second working gate 3, and the hydraulic presses drive the gates to lift. The maintenance gate adopts fixed hoist engine to open and close to conveniently overhaul the tunnel, and the maintenance platform elevation is 661m, overhauls the length of platform in order to reduce upper portion, avoids stretching into the reservoir area too long, so with the axis of accident access door, the slant is deepened 80 degrees in reservoir area direction.
The top of the water inlet is provided with a hoist lock chamber 9, and the hydraulic machine is arranged inside the hoist lock chamber 9 to control the opening and closing, namely the lifting and the lowering of each gate in a centralized way.
Be provided with trash rack gate slot, first work gate slot, second work gate slot and maintenance gate slot on two relative lateral walls of water inlet, guaranteed the stable lift in first work gate slot, second work gate slot and maintenance gate slot.
The trash rack 1 is connected with the side surface and the bottom surface of the water inlet, so that water entering the water inlet is filtered firstly and then passes through the first working gate.
A water flow channel 6 is arranged at the bottom of the dam body 8, a water guide channel 7 communicated with the water flow channel 6 is arranged outside the dam body 8, and the water guide channel 7 can be a pressure pipeline or a tunnel.
The utility model relates to a water inlet structure that adapts to two-way rivers and greatly becomes width of cloth flood peak is suitable for following four kinds of operating modes:
the working condition I is as follows: water flow out of reservoir at high water head
When the flood peak is higher (greater than 50 meters) above the water inlet bottom plate elevation promptly, rivers get into the water inlet from the reservoir, then get into the diversion channel in-process, close first work gate 2, open second work gate 3 and maintenance gate 5, the maintenance gate locking is in the position above the water inlet apical elevation, rivers are earlier through trash rack 1, are crossed first work gate 2 after being filtered, then get into rivers passageway 6 through second work gate 3 and maintenance gate 5, flow into in diversion channel 7 at last.
Working conditions are as follows: water flow out of reservoir at low water head
When the flood peak is lower (less than or equal to 50 meters) above the water inlet bottom plate elevation promptly, rivers get into the water inlet from the reservoir, then get into the leading water way in-process, close second way work gate 3, open first way work gate 2 and maintenance gate 5, the maintenance gate locking is in the position more than the water inlet apical elevation, rivers are earlier through trash rack 1, are filtered the back and pass through first way work gate 2 again, then flow through from second way work gate 3 bottom, get into rivers passageway 6 through maintenance gate 5, flow into in leading water way 7 at last.
Working conditions are as follows: water flow warehousing at high water head of reservoir
When the water head is higher (more than 50 meters) above the elevation of the water inlet bottom plate, water flow reversely enters the reservoir from the water inlet, the first working gate 2 is closed, the second working gate 3 and the maintenance gate 5 are opened, the maintenance gate is locked at a position above the top elevation of the water inlet, the water flow firstly enters the water flow channel 6 through the water guide channel 7, then sequentially passes through the maintenance gate 5 and the second working gate 3, crosses the first working gate 2, and finally enters the reservoir after being filtered by the trash rack 1.
Working conditions are as follows: water flow out of reservoir at low water head
When the water head is lower (less than or equal to 50 meters) above the elevation of the water inlet bottom plate, when water flow reversely enters the reservoir from the water inlet, the second working gate 3 is closed, the first working gate 2 and the maintenance gate 5 are opened, the maintenance gate is locked at a position above the top elevation of the water inlet, the water flow firstly enters the water flow channel 6 through the water guide channel 7, then passes through the maintenance gate 5, then passes through the bottom of the second working gate 3, flows through the first working gate 2, and finally enters the reservoir after being filtered by the trash rack 1.
Adopt the utility model discloses the water inlet structure, can adjust opening and close of first way work gate 2 and second way work gate 3 according to the flood peak height, the water inlet elevation requirement separately of electricity generation diversion and water supply has been satisfied, and simultaneously, reduce on the dam through the layering water intaking, the lower water difference in temperature, be favorable to the aquatic animal and plant growth in low reaches river course, be applicable to the greatly variable amplitude flood peak, also can be applicable to two-way rivers, traditional hydraulic and hydroelectric engineering has been solved at two-way rivers, set up two water inlets under the greatly variable amplitude flood peak condition, thereby cause water inlet structure occupation space big, the design, the construction is big with the management operation degree of difficulty, technical problem such as engineering cost height.
Claims (6)
1. The utility model provides a water inlet structure that adapts to two-way rivers and greatly becomes width of cloth flood peak, a serial communication port, including trash rack (1) that sets gradually between reservoir and dam body (8), first work gate (2), gate hard shoulder (4), second way work gate (3) and maintenance gate (5), gate hard shoulder (4) set up at water inlet lateral wall middle part, first work gate (2) set up between water inlet bottom and gate hard shoulder (4), second way work gate (3) set up between gate hard shoulder (4) and water inlet top, maintenance gate (5) set up between water inlet bottom and water inlet top, dam body (8) bottom is provided with rivers passageway (6).
2. A water inlet structure adapted for a bidirectional water flow and a large amplitude water head according to claim 1, characterized in that a water conduit (7) communicated with the water flow channel (6) is provided outside the dam (8).
3. A water inlet structure adapted for a bidirectional water flow and a large amplitude water head according to claim 1, wherein the trash rack (1) is connected to the side and bottom surfaces of the water inlet.
4. The water inlet structure suitable for the bidirectional water flow and the large-amplitude water head as claimed in claim 1, wherein two opposite side walls of the water inlet are provided with a trash rack gate groove, a first working gate groove, a second working gate groove and an access gate groove.
5. The water inlet structure suitable for the bidirectional water flow and the large-amplitude water head as claimed in claim 1, wherein the top of the first working gate (2) and the top of the second working gate (3) are respectively provided with a hydraulic machine for opening and closing the gates, and the top of the maintenance gate (5) is provided with a fixed winch.
6. The water inlet structure adapting to the bidirectional water flow and the large-amplitude water head as recited in claim 5, characterized in that a hoist lock chamber (9) is arranged at the top of the water inlet, and the hydraulic machine is installed inside the hoist lock chamber (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021932046.4U CN213204015U (en) | 2020-09-07 | 2020-09-07 | Water inlet structure suitable for bidirectional water flow and large-amplitude water head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021932046.4U CN213204015U (en) | 2020-09-07 | 2020-09-07 | Water inlet structure suitable for bidirectional water flow and large-amplitude water head |
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| CN213204015U true CN213204015U (en) | 2021-05-14 |
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| CN202021932046.4U Active CN213204015U (en) | 2020-09-07 | 2020-09-07 | Water inlet structure suitable for bidirectional water flow and large-amplitude water head |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117536179A (en) * | 2024-01-09 | 2024-02-09 | 陕西省水利电力勘测设计研究院 | Water supply valve system and design method thereof |
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2020
- 2020-09-07 CN CN202021932046.4U patent/CN213204015U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117536179A (en) * | 2024-01-09 | 2024-02-09 | 陕西省水利电力勘测设计研究院 | Water supply valve system and design method thereof |
| CN117536179B (en) * | 2024-01-09 | 2024-05-03 | 陕西省水利电力勘测设计研究院 | Water supply valve system and design method thereof |
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