CN204589952U - A kind of combined type flood discharge water intaking structure - Google Patents
A kind of combined type flood discharge water intaking structure Download PDFInfo
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- CN204589952U CN204589952U CN201520263113.0U CN201520263113U CN204589952U CN 204589952 U CN204589952 U CN 204589952U CN 201520263113 U CN201520263113 U CN 201520263113U CN 204589952 U CN204589952 U CN 204589952U
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- water intaking
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- discharge orifice
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model discloses a kind of combined type flood discharge water intaking structure, it is included in the water intaking structure (1) that dam body bottom is arranged, the bottom of this water intaking structure (1) arranges one deck discharge orifice (2), arranges one deck water intaking aperture (3) at the horn mouth over top place of discharge orifice (2); Discharge orifice (2) and water intaking aperture (3) are longitudinally stacked layout along its center line.The utility model can save landscape layout space to greatest extent, and because discharge orifice is arranged in immediately below water intaking aperture, alluvial scouring effect is good, and phenomenon of depositing before can not causing water intaking orifice door, ensures normally to fetch water.And opening and closing device realizes centralized arrangement, convenient operation and maintenance management.
Description
Technical field
The utility model relates to a kind of combined type flood discharge water intaking structure, especially relates to the combined type flood discharge water intaking structure of a kind of valley mountain reservoir.
Background technology
Flood discharge, sand surfing and emptying (collect as flood discharge in this material by the flood discharge structure of Hydraulic and Hydro-Power Engineering, lower same) usually take separate layout with water intaking structure, during minority Canyon Area large water conservancy hydroelectric engineering is built, because dam body is high, achieve longitudinal dislocation type arrangement of flood discharge structure, such as show the flood discharging arrangement mode of hole+gate pier mesopore, save certain lateral arrangement space, this arrangement belongs to dislocation layout pattern in the plane.In some middle-size and small-size Hydraulic and Hydro-Power Engineerings of valley Construction of The Mountainous Region, because dam site landform is very narrow, peak flood flow is comparatively large, and silt is serious, and two sides landform is steep causes bank slope water intaking difficulty, and project playout general layout is very narrow, and technical difficulty is larger.
Utility model content
The purpose of this utility model is to provide a kind of combined type flood discharge water intaking structure, causes the technical problems such as bank slope water intaking difficulty to solve narrow valley region narrow terrain.
The technical solution of the utility model is as follows:
A kind of combined type flood discharge method for fetching water, it is arranged along its center line longitudinal overlap at discharge orifice structure and water intaking orifice structure, realizes flood discharge structure and the combination of water intaking close structure; Arrange at least one deck discharge orifice by longitudinal overlap, along the water inlet of river course depth item in plane, facade higher slice is intake, and namely solves the narrow water intaking difficult problem of Canyon Area horizontal space, realizes again longitudinal layered water inlet and improve flood discharge efficiency to greatest extent; Horn mouth is established in every one deck discharge orifice front portion, and middle part establishes backwater gate to carry out flood discharge control and accident is closed, and side direction air vent is established at gate rear portion, carries out tonifying Qi when flood discharge, solves the problem of cavitation of high-velocity flow.
Based on said method, a kind of combined type flood discharge water intaking structure of the present utility model is such, it is included in the water intaking structure that dam body bottom is arranged, and the bottom of this water intaking structure arranges one deck discharge orifice, arranges one deck water intaking aperture at the horn mouth over top place of discharge orifice; Discharge orifice and water intaking aperture are longitudinally stacked layout along its center line.
Described discharge orifice front portion is the gradually wealthy bellmouthed orifice in top and both sides, and bellmouthed orifice end is provided with the gate slot of straight-through water intaking structural top together; A fan plate steel gate is installed at gate slot base plate place, is connected, is formed and close with dash by peripheral water stopping with second stage concrete.At gate slot rear portion on the side wall of discharge orifice tip position, reserved side direction air vent straight-through water intaking structural top.
Front portion, described water intaking aperture is open type slot type structure, and rear portion is connected to fetch water with reservoir, and is provided with backwater gate.Trashrack gate slot is established in water intaking front portion, aperture.Air vent straight-through water intaking structural top is reserved at the gate slot rear portion of backwater gate.
Combined type flood discharge water intaking structure of the present utility model, by longitudinal overlap, at least one deck discharge orifice is set, plane is intake along river course depth item, facade higher slice is intake, namely solve the narrow water intaking difficult problem of Canyon Area horizontal space, realize again longitudinal layered water inlet and improve flood discharge efficiency to greatest extent.Horn mouth is established in every one deck discharge orifice front portion, and middle part establishes backwater gate to carry out flood discharge control and accident is closed, and side direction air vent is established at gate rear portion, carries out tonifying Qi when flood discharge, solves the problem of cavitation of high-velocity flow.
Combined type flood discharge water intaking structure of the present utility model, arranges at least one deck water intaking aperture by longitudinal overlap, with discharge orifice center line arranged superposed, shares water intaking width, saves landscape layout space, Canyon Area.Every one deck water intaking front portion, aperture establishes trashrack to tackle reservoir foreign material, and middle part establishes backwater gate to carry out current control and accident is closed, and air vent is established at gate rear portion, carries out tonifying Qi solve problem of cavitation when overcurrent.
Under normal circumstances, most last layer discharge orifice is arranged in basecoat water intaking bottom, aperture, is beneficial to sand surfing, avoids silt to block water intaking aperture.
The utility model is owing to realizing multilayer discharge orifice and water intaking aperture complete arranged superposed in the vertical, and save landscape layout space to greatest extent, the aperture number of plies is more, saves space larger.Meanwhile, because discharge orifice is arranged in immediately below water intaking aperture, alluvial scouring effect is good, and phenomenon of depositing before can not causing water intaking orifice door, ensures normally to fetch water.And a shared gate shaft is arranged in the longitudinal overlap of perforated opening's edge center line, top only need arrange a hoist chamber, and opening and closing device realizes centralized arrangement, convenient operation and maintenance management.
Accompanying drawing explanation
Fig. 1 is water intaking structure centre line section axonometric drawing of the present utility model;
Fig. 2 is water intaking structure centre line sectional drawing of the present utility model;
Fig. 3 is A in Fig. 2---A sectional drawing;
Fig. 4 is B in Fig. 2---B sectional drawing;
Fig. 5 is the axonometric drawing of embodiment 1.
Being labeled as in accompanying drawing: 1-fetches water structure, 2-discharge orifice, and 3-fetches water aperture, 4-overflow surface bay, 5-left bank non-overflow section of dam, 6-right bank non-overflow section of dam, 2.1-discharge orifice gate slot, 2.2-side direction air vent, 2.3-plate steel gate, 2.4-gate sealing, 3.1-trashrack gate slot, 3.2-trashrack, 3.3-trashrack sealing, 3.4-water intaking aperture gate slot, 3.5-backwater gate, 3.6-peripheral water stopping, 3.7-air vent.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
First see Fig. 1-Fig. 4, Fig. 1 illustrates the center line section axonometric drawing of this combined type flood discharge water intaking structure of the present utility model, Fig. 2 illustrates water intaking structure centre line sectional drawing of the present utility model, Fig. 3 and Fig. 4 respectively show A in Fig. 2---A sectional drawing and B---B sectional drawing.
In figure, agent structure of the present utility model is the water intaking structure 1 arranged in dam body bottom, and this water intaking structure 1 is reinforced concrete structure, is connected with ground by concrete foundation.One deck discharge orifice 2 is provided with in water intaking structure 1 bottom, its front portion is the gradually wealthy bellmouthed orifice in top and both sides, bellmouthed orifice end is provided with the discharge orifice gate slot 2.1 at straight-through water intaking structure 1 top together, the embedded parts such as gate slide rail, dowel are laid in discharge orifice gate slot 2.1 inside, and build second stage concrete in the later stage.A fan plate steel gate 2.3 is installed at discharge orifice gate slot 2.1 base plate place, is connected, is formed and close with dash by gate sealing 2.4 with second stage concrete.
In appropriate location, discharge orifice gate slot 2.1 rear portion, on the side wall of aperture tip position, straight-through water intaking structure 1 top of reserved side direction air vent 2.2.
In appropriate location, discharge orifice 2 horn mouth top, be provided with one deck water intaking aperture 3, its front portion is that open type slot type structure is connected with reservoir and fetches water.Trashrack gate slot 3.1 is established in water intaking front portion, aperture 3, the embedded parts such as its inner laying gate slide rail, dowel, and builds second stage concrete in the later stage, and installation in position trashrack 3.2, be connected with concrete structure by trashrack sealing 3.3.In appropriate location, trashrack gate slot 3.1 rear portion, be provided with one water intaking aperture gate slot 3.4, the embedded parts such as its inner laying gate slide rail, dowel, and build second stage concrete in the later stage.A fan backwater gate 3.5 is installed at water intaking gate slot 3.4 base plate place, aperture, is connected, is formed and close with dash by peripheral water stopping 3.6 with second stage concrete.At the top board place, aperture of water intaking appropriate location, gate slot 3.4 rear portion, aperture, straight-through water intaking structure 1 top of reserved air vent 3.7.
Embodiment 1:
Now for certain Canyon Area reservoir engineering, application of the present utility model is described.
Certain river valley, medium-sized reservoir Dam Site is narrow, deep about the 300m in river valley, and two bank slopes are steep, and be typical deep " U " type river valley, river valley the ratio of width to height of normal pool level elevation is only 1.12.The principal works task of this reservoir is flood control and supplies water, and the project playout scheme of recommending through demonstration is concrete gravity dam dash, surface spillways flood discharge, and bottom outlet is taken into account and adjusted flood, sand surfing and emptying.Concrete gravity dam height of dam 70m, crest elevation 800m, axis of dam length is 92m.Engineering intake area is with in dam site downstream one, and due to the topographic and geologic condition that dam site is very special, the water diversion scheme difficulty of construction of storehouse bank water intaking+tunnel diversion is large, construction costs is high, therefore can only consider dam body water extracting scheme.So narrow dam site topographic space, after arranging surface spillways and bottom outlet, water intaking structure is arranged separately without sufficient space.
For above-mentioned situation, this project is considered to adopt the utility model, and concrete condition is:
See Fig. 5, the arrangement of the present utility model that composition graphs 1-4 shows, the technical scheme that this project adopts is: according to the general arrangement general layout of dam hinge, dam is divided into left bank non-overflow section of dam 5, surface spillways 4 monolith and right bank non-overflow section of dam 6.The wherein long 31m of left bank non-overflow section of dam 5, the long 20m of surface spillways 4 monolith, the long 41m of right bank non-overflow section of dam 6.
Water intaking structure 1 of the present utility model is close to surface spillways 4 and is arranged in right bank non-overflow section of dam 6, is connected with ground by concrete foundation.Arrange one deck flood discharge sand duct as floodwater releasing port mouth 2 at 741.5m elevation, port size is 3m × 4m(b × h), plate steel gate 2.3 is established at rear portion, and both walls establishes round vent to cause gate shaft top as side direction air vent 2.2.Arrange one deck water intaking aperture 3 at discharge orifice 2 horn mouth top 751.0m elevation, port size is 2m × 2m(b × h), trashrack 3.2 is established in front portion, and backwater gate 3.5 is established at middle part, and top, aperture establishes round vent 3.7 to cause gate shaft top behind the door.River valley horizontal space width only 10m shared by the utility model, achieve discharge orifice 2 and water intaking aperture 3 arranged superposed completely, solve the problem that this dam site cannot arrange separately water intake facilities, simultaneously because discharge orifice 2 is positioned at immediately below water intaking aperture 3, scouring effect is obvious, is also convenient to Operation, Administration and Maintenance.
Certainly, more than just embody rule example of the present utility model, the technical scheme that the utility model also has other embodiment, all employings to be equal to replacement or equivalent transformation to be formed, all drops within the protection domain required by the utility model.
Claims (6)
1. a combined type flood discharge water intaking structure, it is characterized in that: it is included in the water intaking structure (1) that dam body bottom is arranged, the bottom of this water intaking structure (1) arranges one deck discharge orifice (2), arranges one deck water intaking aperture (3) at the horn mouth over top place of discharge orifice (2); Discharge orifice (2) and water intaking aperture (3) are longitudinally stacked layout along its center line.
2. combined type flood discharge water intaking structure according to claim 1, it is characterized in that: described discharge orifice (2) front portion is the gradually wealthy bellmouthed orifice in top and both sides, and bellmouthed orifice end is provided with the gate slot (2.1) at straight-through water intaking structure (1) top together; Fan plate steel gate (2.3) is installed at gate slot (2.1) base plate place, is connected with second stage concrete by peripheral water stopping (2.4), is formed and closes with dash.
3. combined type flood discharge water intaking structure according to claim 2, is characterized in that: at gate slot (2.1) rear portion on the side wall of discharge orifice (2) tip position, reserved side direction air vent (2.2) straight-through water intaking structure (1) top.
4. combined type flood discharge water intaking structure according to claim 1, is characterized in that: described water intaking aperture (3) front portion is open type slot type structure, and rear portion is connected with reservoir to fetch water, and is provided with backwater gate (3.5).
5. combined type flood discharge water intaking structure according to claim 4, is characterized in that: trashrack gate slot (3.1) is established in water intaking aperture (3) front portion.
6. combined type flood discharge water intaking structure according to claim 4, is characterized in that: reserve air vent (3.7) straight-through water intaking structure (1) top at gate slot (3.4) rear portion of backwater gate (3.5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520263113.0U CN204589952U (en) | 2015-04-28 | 2015-04-28 | A kind of combined type flood discharge water intaking structure |
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| CN201520263113.0U CN204589952U (en) | 2015-04-28 | 2015-04-28 | A kind of combined type flood discharge water intaking structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317027A (en) * | 2015-04-28 | 2016-02-10 | 贵州省水利水电勘测设计研究院 | Combined type flood discharge and water taking method and structure thereof |
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- 2015-04-28 CN CN201520263113.0U patent/CN204589952U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105317027A (en) * | 2015-04-28 | 2016-02-10 | 贵州省水利水电勘测设计研究院 | Combined type flood discharge and water taking method and structure thereof |
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