CN117569411A - Self-floating stepless displacement water taking device and use method thereof - Google Patents

Self-floating stepless displacement water taking device and use method thereof Download PDF

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Publication number
CN117569411A
CN117569411A CN202311589369.6A CN202311589369A CN117569411A CN 117569411 A CN117569411 A CN 117569411A CN 202311589369 A CN202311589369 A CN 202311589369A CN 117569411 A CN117569411 A CN 117569411A
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CN
China
Prior art keywords
water
floating
floating gate
gate
door
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Pending
Application number
CN202311589369.6A
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Chinese (zh)
Inventor
胡清义
邵剑南
邵春芬
汪碧飞
吕传亮
孔剑
王启行
齐文强
韩健
王科
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Changjiang Institute of Survey Planning Design and Research Co Ltd
China Renewable Energy Engineering Institute
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Changjiang Institute of Survey Planning Design and Research Co Ltd
China Renewable Energy Engineering Institute
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Application filed by Changjiang Institute of Survey Planning Design and Research Co Ltd, China Renewable Energy Engineering Institute filed Critical Changjiang Institute of Survey Planning Design and Research Co Ltd
Priority to CN202311589369.6A priority Critical patent/CN117569411A/en
Publication of CN117569411A publication Critical patent/CN117569411A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03BINSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
    • E03B3/00Methods or installations for obtaining or collecting drinking water or tap water
    • E03B3/04Methods or installations for obtaining or collecting drinking water or tap water from surface water
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B5/00Artificial water canals, e.g. irrigation canals
    • E02B5/08Details, e.g. gates, screens
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B5/00Artificial water canals, e.g. irrigation canals
    • E02B5/08Details, e.g. gates, screens
    • E02B5/085Arresting devices for waterborne materials, e.g. gratings
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • E02B7/205Barrages controlled by the variations of the water level; automatically functioning barrages
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B7/00Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/20Movable barrages; Lock or dry-dock gates
    • E02B7/50Floating gates
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/20Hydro energy

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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)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Barrages (AREA)

Abstract

The invention provides a self-floating stepless displacement water taking device and a use method thereof, wherein the device comprises a water inlet tower, and a floating gate slot, a stoplog gate slot, an accident access gate slot and an arc-shaped working gate slot which are sequentially arranged in the water inlet tower from upstream to downstream, wherein a floating gate capable of sliding up and down along the floating gate slot along with the water level is arranged in the floating gate slot, and the stoplog gate slot is internally provided with a stoplog; the floating gate is formed with a U-shaped overflow surface, surface water flows into a downstream runner from the U-shaped overflow surface, the bottom of the downstream surface of the floating gate is provided with a cornice, the end part of the cornice is provided with a water stopping device which is contacted with a stop log in a downstream stop log gate slot, the stop log consists of a plurality of sections, part of the stop log is stacked in the stop log gate slot for retaining water, the other part of the stop log is stored in a stop log gate warehouse, and the bridge crane is used for adjusting the number of stop log sections in the stop log gate slot according to the change of the reservoir water level and hanging or hanging the stop log in the stop log gate slot into the stop log gate warehouse. The invention can realize surface water taking, stepless displacement of the floating gate and adaptation to large amplitude water level change.

Description

Self-floating stepless displacement water taking device and use method thereof
Technical Field
The invention relates to the field of water conservancy and hydropower engineering, in particular to a self-floating stepless displacement water taking device and a use method thereof, which are particularly suitable for layered water taking of a water transmission line of the water conservancy and hydropower engineering.
Background
In order to slow down the influence of the water leakage temperature of the hydraulic and hydroelectric engineering on the ecological environment, the water inlet generally adopts layered water taking so as to achieve the purpose of taking surface water. The layered water intake type mainly comprises a multi-layer type, a stop beam door type, a turning plate door type, an inclined horizontal type, a sleeve type and the like. The multi-layer, stoplog door type, flap door type and inclined horizontal type layered water taking scheme is characterized in that the gear is adjusted, namely, the water taking depth is changed by taking the height of a single-section gate as one gear, the water taking depth is changed in a jumping mode, and stepless layered water taking cannot be realized.
With the importance of the state on the ecological environment, the sleeve gate is formed by sleeving cylinders with different pipe diameters on the pipe body, the upper sleeve is sleeved outside the lower sleeve, the sleeve gate adopts mechanical control in the early stage of layered water taking, the top cylinder is hung by mechanical equipment, the cylinders are controlled to stretch by pulling up or putting down slings, the purpose of taking surface water is achieved, the device belongs to improved gear adjustment, jump of water taking depth is reduced, self-floating sleeve water taking is developed on the basis, the pontoon floats up and down along with water level change, and stepless displacement water taking is realized.
The self-floating sleeve gate mainly comprises an upper floating box and sleeves, wherein the upper floating box is used for pulling up the sleeves at the lower section by using the buoyancy of the upper floating box, the floating box has a certain draft, and surface layer reservoir water flows into the sleeves through a gap between the top sleeve and the floating box and is supplied to the downstream through a water inlet tower runner. In the practical engineering application process, the self-floating sleeve gate mainly has the following defects: 1) The surface water is not easy to get; 2) When the amplitude of the water level of the water intake is large, the sleeve is easy to block, so that the sleeve is damaged.
Disclosure of Invention
The invention aims to provide a self-floating stepless displacement water taking device and a use method thereof, which can realize surface water taking and adapt to large amplitude water level change.
The invention adopts the following technical scheme for solving the technical problems:
the self-floating stepless displacement water taking device comprises a water inlet tower, and a floating door slot, a stoplog door slot, an accident access door slot and an arc-shaped working door slot which are sequentially arranged in the water inlet tower from the upstream to the downstream, wherein the floating door slot is internally provided with a floating door which can slide up and down along the floating door slot along with the water level, the stoplog door slot is internally provided with a stoplog, the accident access door slot is internally provided with an accident access door, the arc-shaped working door slot is internally provided with an arc-shaped working door, the top of the water inlet tower is provided with a bridge crane, the rear of a breast wall is provided with a stoplog door warehouse, and a hydraulic hoist is arranged above the arc-shaped working door; the floating gate is formed with a U-shaped overflow surface, surface water flows into a downstream runner from the U-shaped overflow surface, a cornice is arranged at the bottom of the downstream surface of the floating gate, a water stopping device which is in contact with a stop beam in a downstream stop beam gate slot is arranged at the end part of the cornice, the water above the cornice and the water stopping device is in a flat-pressing state with the water below the water stopping device, the stop beam consists of a plurality of sections, part of the stop beam is stacked in the stop beam gate slot for retaining water, the other part of the stop beam is stored in a stop beam gate warehouse, and the bridge crane is used for adjusting the number of stop beam joints in the stop beam gate slot according to the change of reservoir water level and hanging or hanging the stop beam in the stop beam gate slot into the stop beam gate warehouse.
Further, the upper part of the U-shaped overflow surface of the floating gate is provided with a trash rack.
Further, the upstream of the floating gate slot is provided with a trash rack slot, and the trash rack slot is provided with a trash rack.
Further, the floating door comprises an upper side column floating box and a lower floating box, wherein the upper side column floating box and the lower floating box which are respectively arranged on two sides of the upper part form the U-shaped overflow surface, and the buoyancy of the floating door is provided by the two upper side column floating boxes and the lower floating box.
Further, the stopbeam in the stopbeam door slot is lifted out to a stopbeam door warehouse, and the concrete process is as follows:
the water stopping device on the cornice of the floating gate is contacted with a first section of the stopbeam in the stopbeam gate groove, when the water level changes, the floating gate slides up and down along the stopbeam, when the water level descends, the floating gate descends, the water stopping device of the floating gate moves downwards, and when the difference between the bottom elevation of the U-shaped overflow surface of the floating gate and the top elevation of the first section of the stopbeam is smaller than h1, the water stopping device is contacted with a second section of the stopbeam at the moment, so that the overflow of the U-shaped overflow surface is not influenced, and the first section of the stopbeam is lifted out of the stopbeam gate warehouse;
and (3) hanging the stopbeam in the stopbeam door slot into a stopbeam door warehouse, wherein the concrete process is as follows:
the water stopping device on the cornice of the floating door is contacted with the top-section stoplog, and when the water level changes, the floating door slides up and down along the stoplog; when the water level rises, the floating gate floats upwards, and when the difference between the bottom elevation of the floating gate and the top elevation of the first cascade beam is equal to h2, the floating gate is suspended in the cascade beam.
Further, the critical state of hanging out the first section of the stack beam is: the difference between the bottom elevation of the U-shaped flow passage surface and the top elevation of the first folded beam is H1, the difference between the bottom elevation of the floating gate and the top elevation of the second folded beam is H2, H=h+h1+h2, H is the height of the floating gate below the U-shaped flow passage surface, and H is the height of the single folded beam.
Further, h1 is determined according to the flow rate and the water intake flow rate, and is set to be 200-400 mm; h2 is determined according to the size of the water stop device and is set to be 500-700 mm.
The application method of the self-floating stepless displacement water taking device comprises the following steps:
when water is normally taken, the floating gate is arranged in a floating gate slot, the stoplog is arranged in the stoplog gate, the floating gate is suspended in the floating gate slot under the action of reservoir water, surface water flows out to a downstream flow channel through a U-shaped overflow surface, and a water stop device at the end part of the cornice is contacted with the stoplog panel;
the floating gate can be moved up or down along with the water body of reservoir, and the stopbeam at the downstream of the floating gate can be moved up or down along with the water body of reservoir, according to the change of water level of reservoir, the number of stopbeam sections in the stopbeam gate slot can be regulated by means of overhead bridge machine, and the stopbeam in the stopbeam gate slot can be lifted out or lifted into the stopbeam gate warehouse.
Further, hang out or hang into the stoplog door storehouse with the stoplog in the stoplog door groove, specifically include:
when the water level is lowered, the floating gate is lowered, the water stopping device of the floating gate moves downwards, and when the bottom elevation of the U-shaped overflow surface of the floating gate and the height Cheng Chaxiao of the first section of folded beam are h1, the water stopping device is in contact with the second section of folded beam at the moment, so that the overflow of the U-shaped overflow surface is not influenced, the first section of folded beam is lifted out to a folded beam door warehouse, and h1 is the difference between the bottom elevation of the U-shaped overflow surface and the top elevation of the first section of folded beam;
when the water level rises, the floating gate floats upwards, and when the difference between the elevation of the bottom of the floating gate and the elevation of the top of the first cascade beam is smaller than h2, the floating gate is suspended in the cascade beam;
h1, determining according to the flow rate and the water intake flow, and setting the flow rate and the water intake flow to be 200-400 mm; h2 is determined according to the size of the water stop device and is set to be 500-700 mm.
Compared with the traditional self-floating sleeve gate device, the structure of the invention has the following advantages:
(1) The U-shaped overflow surface is formed on the floating gate, and the surface water flows into the downstream flow channel from the U-shaped overflow surface, so that the surface water can be taken out, the flow state is stable, the water inlet area is large, and the water intake flow is ensured;
(2) The height of the floating gate is not influenced by the water level amplitude, namely, the floating gate with the same height can be suitable for water level changes of up to tens of meters, meanwhile, the number of the bridge sections in the bridge gate slot is adjusted according to the water level changes of the reservoir, and the bridge in the bridge gate slot can be lifted out or lifted into a bridge gate warehouse, so that the floating gate can be suitable for large amplitude water level changes;
(3) The floating door has simple structure, and is provided with a reverse support, a forward support and a lateral support, so that the floating door operates stably.
Drawings
FIG. 1 is a schematic diagram of a self-floating stepless displacement water intake device according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a floating gate according to an embodiment of the present invention;
FIG. 3 is an upstream view of a floating gate according to an embodiment of the present invention;
FIG. 4 is a downstream view of a floating gate according to an embodiment of the present invention;
FIG. 5 is a diagram showing the relationship between the upper part of the floating gate and the stop beam along the water flow direction according to the embodiment of the invention;
FIG. 6 is a diagram showing the relationship between the lower part of the floating gate and the stop beam along the water flow direction according to the embodiment of the invention;
FIG. 7 is a diagram showing the sliding up and down of the floating gate according to the present invention;
FIG. 8 is an enlarged view of portion A of FIG. 7;
FIG. 9 is a diagram showing the relationship between the floating gate and the stop log when the stop log is lifted out according to the embodiment of the present invention;
FIG. 10 is a diagram illustrating the relationship between floating gate and stop log when the stop log is lifted in accordance with an embodiment of the present invention.
In the figure: 1.1-trash rack groove, 1.2-trash rack, 2.1-floating door groove, 2.2-floating door, 3.1-stoplog door groove, 3.2-stoplog, 3.3-stoplog door warehouse, 3.21-first-section stoplog, 3.22-second-section stoplog, 4.1-accident access door groove, 4.2-accident access door, 5.1-arc-shaped working door groove, 5.2-arc-shaped working door, 6-downstream runner, 7-upper side column buoyancy tank, 8-lower buoyancy tank, 9-U-shaped overflow surface, 10-forward support, 11-reverse support, 12-lateral support, 13-cornice, 14-water stop device.
Detailed Description
The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1-10, an embodiment of the invention provides a self-floating stepless displacement water intake device, which comprises a water intake tower, a trash rack groove 1.1, a floating door groove 2.1, a stop log door groove 3.1, an accident access door groove 4.1 and an arc-shaped working door groove 5.1 which are sequentially arranged from upstream to downstream in the water intake tower, wherein the trash rack groove 1.1 is provided with a trash rack 1.2, the floating door groove 2.1 is provided with a floating door 2.2, the stop log door groove 3.1 is provided with a stop log 3.2, the accident access door groove 4.1 is provided with an accident access door 4.2, and the arc-shaped working door groove 5.1 is provided with an arc-shaped working door 5.2. The bridge crane is arranged at the top of the water inlet tower, the stop log door warehouse 3.3 is arranged behind the breast wall, and the hydraulic hoist is arranged above the arc-shaped working door 5.2.
Referring to fig. 2, 3 and 4, the floating gate 2.2 includes an upper side pillar floating box 7, a lower floating box 8, a U-shaped overflow surface 9, a forward support 10, a reverse support 11, a lateral support 12, a cornice 13 and a water stop device 14. The side column buoyancy tanks 7 and the lower buoyancy tanks 8 which are respectively arranged on the two sides of the upper part of the floating gate 2.2 form a U-shaped overflow surface 9, the cornice 13 is welded at the bottom of the downstream surface of the floating gate 2.2, the water stop device 14 of the floating gate 2.2 is arranged at the end part of the cornice 13, and the water stop device 14 is in contact with the downstream stop beam 3.2. The stoplog 3.2 is composed of a plurality of sections, part of stoplogs are stacked in the stoplog door slot 3.1 for retaining water, part of stoplogs are stored in the stoplog door warehouse 3.3, the number of the stoplog sections in the stoplog door slot 3.1 is adjusted by means of a bridge crane at the top of the water inlet tower according to the water level change of a reservoir, the stoplog 3.2 in the stoplog door slot 3.1 is lifted out or lifted into the stoplog door warehouse 3.3, and the stoplogs 3.2 in the stoplog door slot 3.1 are sequentially called a first-section stoplog 3.21 and a second-section stoplog 3.22 from top to bottom, so that the stoplog names are defined. The cornice 13 and the water stop device 14 are used for preventing reservoir water from entering the flow passage from the gap between the floating gate 2.2 and the downstream stopbeam. The reverse support 11, the forward support 10 and the lateral support 12 are used for ensuring that the floating door 2.2 slides up and down in the floating door slot 2.1 and keeping the floating door 2.2 running stably.
Referring to fig. 7 and 8, the buoyancy of the floating gate 2.2 is provided by two upper side column buoyancy tanks 7 and a lower buoyancy tank 8, and the surface water body flows into the downstream flow channel 6 from the U-shaped overflow surface 9, so that the water body is a steady-flow-state weir flow. The floating gate structure below the U-shaped overflow surface 9 has a height H, and the stack beam has a single section of height H (shown in figure 9) 3.2.
During normal water intake, the trash rack 1.2 is placed in the trash rack groove 1.1 to intercept water inlet dirt, the floating gate 2.2 is installed in the floating gate groove 2.1, the stoplog 3.2 is installed in the stoplog door groove 3.1, the floating gate 2.2 is suspended in the floating gate groove 2.1 under the action of reservoir water, surface water flows out to a downstream runner through the U-shaped overflow surface 9, the water stop device 14 at the end part of the cornice 13 is in contact with the panel of the stoplog 3.2, and the water above the cornice 13 and the water stop device 14 is in a flat-pressed state with the water below. The reservoir water body can only enter the downstream runner 6 through the U-shaped overflow surface 9, so that the reservoir water body with a surface layer can be taken, the floating gate 2.2 rises or falls along with the change of the reservoir water body, the water level change of tens of meters can be adapted, stepless layered water taking is realized, and mechanical equipment is not required to provide mechanical force for pulling up or putting down.
When the floating gate 2.2 and the stoplog 3.2 run for a period of time, the maintenance is needed, the main contents of the maintenance are that the water stop device 14 is replaced, corrosion protection coating is carried out on the rusted part, and the like, the floating gate 2.2 and the stoplog 3.2 are lifted to the top of the water inlet tower for maintenance by means of the overhead bridge crane, and the upstream of the floating gate 2.2 and the upstream of the stoplog 3.2 do not need special maintenance gates. When the reservoir has less dirt, the U-shaped overflow surface 9 can be provided with the trash rack, so that the trash rack 1.2 at the upstream of the floating gate is eliminated, and the arrangement space is saved. The accident access door 4.2 is locked above the orifice through a suspender, and the arc-shaped working door 5.2 regulates and controls the flow of the runner water body through different opening degrees. When the arc-shaped working door 5.2 needs to be overhauled, the arc-shaped working door 5.2 is closed by moving water, the arc-shaped working door 5.2 is closed after the overhauling is finished, the arc-shaped working door 4.2 is horizontally pressurized by adopting a flat-pressure valve, the arc-shaped working door 5.2 is locked above the orifice of the arc-shaped working door groove 4.1 by utilizing a water inlet overhead bridge crane after the flat-pressure is adopted, and the arc-shaped working door 5.2 is opened for normally taking water.
The floating gate 2.2 freely and steplessly shifts along with the ascending or descending of the reservoir water body, the stopbeam 3.2 at the downstream of the floating gate is required to be changed according to the reservoir water level, the number of stopbeam joints in the stopbeam gate slot 3.1 is adjusted by means of a tower top bridge crane, and the stopbeam 3.2 in the stopbeam gate slot 3.1 is lifted out or lifted into the stopbeam gate warehouse 3.3:
(1) Suspended stop beam
Referring to fig. 9, the water stop 14 on the cornice 13 of the floating gate 2.2 contacts the first stop beam 3.21, and when the water level changes, the floating gate 2.2 slides up and down along the stop beam 3.2. When the water level is lowered, the floating gate 2.2 is lowered, the water stop device 14 of the floating gate 2.2 moves downwards, and when the height difference between the bottom of the U-shaped overflow surface 9 of the floating gate 2.2 and the height difference of the first section stop beam 3.21 are equal to h1, at this time, the water stop device 14 is in contact with the second section stop beam 3.22, so that the U-shaped overflow surface 9 is not influenced, the first section stop beam 3.21 needs to be lifted out to the stop beam door warehouse 3.3, and then the second section stop beam 3.22 is called as the first section stop beam 3.21. And hoisting out the critical state of the first laminated beam 3.21: the difference between the bottom elevation of the U-shaped overflow surface 9 and the top elevation of the first folded beam 3.21 is H1, and at this time, the difference between the bottom elevation of the floating gate 2.2 and the top elevation of the second folded beam 3.22 is H2, and h=h+h1+h2. h1 is determined according to the flow rate and the water intake flow, and is generally 200 mm-400 mm; h2 is determined according to the size of the water stopping device, and is generally 500-700 mm; h is the height of the single-section laminated beam.
(2) Suspended-in stoplog
Referring to fig. 10, a water stop device 14 on a cornice 13 of the floating gate 2.2 contacts with the roof beam, and when the water level changes, the floating gate 2.2 slides up and down along the beam 3.2. When the water level rises, the floating gate 2.2 floats upwards, when the difference between the bottom elevation of the floating gate 2.2 and the top elevation of the first stop beam 3.21 is equal to h2, the stop beam 3.2 needs to be hung in, otherwise, along with the rising of the water level, the water stopping device 14 is separated from the stop beam 3.2, and the U-shaped overflow surface 9 and the bottom of the floating gate 2.2 are simultaneously overflowed to influence the water temperature of water taking. After the beam 3.2 is suspended, then the first beam 3.21 is referred to as the second beam 3.22 and the beam suspended from the beam garage 3.3 is referred to as the first beam 3.21.
Compared with the traditional self-floating sleeve gate device, the structure of the invention has the following advantages:
(1) The surface water flows into the downstream flow channel from the U-shaped flow passage surface 9, which is equivalent to a weir flow form, and the surface water is taken, so that the flow state is stable; in addition, the water inflow area is large, the flow is large, and the water taking flow is ensured.
(2) The height of the floating gate 2.2 is not influenced by the water level amplitude, namely the floating gate 2.2 with the same height can be suitable for projects with water level changes of up to tens of meters.
(3) The floating door 2.2 is in a flat door structure, and is provided with a reverse support 11, a forward support 10 and a lateral support 12, so that the floating door 2.2 operates stably.
(4) When the floating gate 2.2 and the stoplog 3.2 need to be overhauled, the floating gate and the stoplog are directly lifted to the top of the water inlet tower without arranging an access gate on the upstream; in addition, a trash rack can be arranged on the U-shaped overflow surface 9, so that the trash rack 1.2 at the upstream of the floating gate 2.2 is omitted. Therefore, the scheme of the invention is compact in arrangement and saves investment.
The foregoing is merely illustrative embodiments of the present invention, and the present invention is not limited thereto, and any changes or substitutions that may be easily contemplated by those skilled in the art within the scope of the present invention should be included in the scope of the present invention.

Claims (9)

1. A self-floating stepless displacement water taking device is characterized in that: the system comprises a water inlet tower, a floating gate door slot, a stoplog door slot, an accident access door slot and an arc-shaped working door slot which are sequentially arranged in the water inlet tower from upstream to downstream, wherein the floating gate door slot is internally provided with a floating gate which can slide up and down along the floating gate door slot along with the water level, the stoplog door slot is internally provided with a stoplog, the accident access door slot is internally provided with an accident access door, the arc-shaped working door slot is internally provided with an arc-shaped working door, the top of the water inlet tower is provided with a bridge crane, a stoplog door warehouse is arranged behind a breast wall, and a hydraulic hoist is arranged above the arc-shaped working door; the floating gate is formed with a U-shaped overflow surface, surface water flows into a downstream runner from the U-shaped overflow surface, a cornice is arranged at the bottom of the downstream surface of the floating gate, a water stopping device which is in contact with a stop beam in a downstream stop beam gate slot is arranged at the end part of the cornice, the water above the cornice and the water stopping device is in a flat-pressing state with the water below the water stopping device, the stop beam consists of a plurality of sections, part of the stop beam is stacked in the stop beam gate slot for retaining water, the other part of the stop beam is stored in a stop beam gate warehouse, and the bridge crane is used for adjusting the number of stop beam joints in the stop beam gate slot according to the change of reservoir water level and hanging or hanging the stop beam in the stop beam gate slot into the stop beam gate warehouse.
2. The self-floating stepless displacement water taking device as claimed in claim 1, wherein: a trash rack is arranged on the upper part of the U-shaped overflow surface of the floating door.
3. The self-floating stepless displacement water taking device as claimed in claim 1, wherein: a trash rack groove is arranged at the upstream of the floating gate groove, and a trash rack is arranged in the trash rack groove.
4. The self-floating stepless displacement water taking device as claimed in claim 1, wherein: the floating door comprises an upper side column floating box and a lower floating box, wherein the upper side column floating box and the lower floating box which are respectively arranged on two sides of the upper part form the U-shaped overflow surface, and the buoyancy of the floating door is provided by the two upper side column floating boxes and the lower floating box.
5. The self-floating stepless displacement water taking device as claimed in claim 1, wherein: and (3) hanging the stopbeam in the stopbeam door slot out to a stopbeam door warehouse, wherein the concrete process is as follows:
the water stopping device on the cornice of the floating gate is contacted with a first section of stopbeam in a stopbeam gate groove, when the water level changes, the floating gate slides up and down along the stopbeam, when the water level descends, the floating gate descends, the water stopping device of the floating gate moves downwards, and when the difference between the bottom elevation of the U-shaped overflow surface of the floating gate and the top elevation of the first section of stopbeam is equal to h1, the water stopping device is contacted with a second section of stopbeam at the moment, so that the overflow of the U-shaped overflow surface is not influenced, and the first section of stopbeam is lifted out to a stopbeam gate warehouse;
and (3) hanging the stopbeam in the stopbeam door slot into a stopbeam door warehouse, wherein the concrete process is as follows:
the water stopping device on the cornice of the floating door is contacted with the top-section stoplog, and when the water level changes, the floating door slides up and down along the stoplog; when the water level rises, the floating gate floats upwards, and when the difference between the bottom elevation of the floating gate and the top elevation of the first cascade beam is equal to h2, the floating gate is suspended in the cascade beam.
6. The self-floating stepless displacement water taking device as claimed in claim 5, wherein: the critical state of hanging out the first laminated beam is as follows: the difference between the bottom elevation of the U-shaped flow passage surface and the top elevation of the first folded beam is H1, the difference between the bottom elevation of the floating gate and the top elevation of the second folded beam is H2, H=h+h1+h2, H is the height of the floating gate below the U-shaped flow passage surface, and H is the height of the single folded beam.
7. The self-floating stepless displacement water taking device as claimed in claim 6, wherein: h1, determining according to the flow rate and the water intake flow, and setting the flow rate and the water intake flow to be 200-400 mm; h2 is determined according to the size of the water stop device and is set to be 500-700 mm.
8. A method of using a self-floating stepless displacement water intake device as claimed in any one of claims 1 to 7, comprising:
when water is normally taken, the floating gate is arranged in a floating gate slot, the stoplog is arranged in the stoplog gate, the floating gate is suspended in the floating gate slot under the action of reservoir water, surface water flows out to a downstream flow channel through a U-shaped overflow surface, and a water stop device at the end part of the cornice is contacted with the stoplog panel;
the floating gate can be moved up or down along with the water body of reservoir, and the stopbeam at the downstream of the floating gate can be moved up or down along with the water body of reservoir, according to the change of water level of reservoir, the number of stopbeam sections in the stopbeam gate slot can be regulated by means of overhead bridge machine, and the stopbeam in the stopbeam gate slot can be lifted out or lifted into the stopbeam gate warehouse.
9. The self-floating stepless displacement water taking device as claimed in claim 8, wherein: hanging or hanging a stopbeam in a stopbeam door slot into a stopbeam door warehouse, and specifically comprises the following steps:
when the water level is lowered, the floating gate is lowered, the water stopping device of the floating gate moves downwards, and when the difference between the bottom elevation of the U-shaped overflow surface of the floating gate and the elevation of the first section of folded beam is equal to h1, the water stopping device is contacted with the second section of folded beam at the moment, so that the overflow of the U-shaped overflow surface is not influenced, and the first section of folded beam is lifted out to a folded beam door warehouse;
when the water level rises, the floating gate floats upwards, and when the difference between the bottom elevation of the floating gate and the top elevation of the first cascade beam is equal to h2, the floating gate is suspended in the cascade beam;
h1, determining according to the flow rate and the water intake flow, and setting the flow rate and the water intake flow to be 200-400 mm; h2 is determined according to the size of the water stop device and is set to be 500-700 mm.
CN202311589369.6A 2023-11-27 2023-11-27 Self-floating stepless displacement water taking device and use method thereof Pending CN117569411A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117926768A (en) * 2024-03-25 2024-04-26 中国电建集团西北勘测设计研究院有限公司 Stoplog door device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117926768A (en) * 2024-03-25 2024-04-26 中国电建集团西北勘测设计研究院有限公司 Stoplog door device

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