CN207891842U - A kind of rigid stop water reducing flow leakage rate at the side wall of water blocking curtain wall lower end - Google Patents
A kind of rigid stop water reducing flow leakage rate at the side wall of water blocking curtain wall lower end Download PDFInfo
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- CN207891842U CN207891842U CN201721700964.2U CN201721700964U CN207891842U CN 207891842 U CN207891842 U CN 207891842U CN 201721700964 U CN201721700964 U CN 201721700964U CN 207891842 U CN207891842 U CN 207891842U
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- water
- curtain wall
- blocking curtain
- water blocking
- side wall
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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 the rigid stop waters of flow leakage rate at a kind of side wall of reduction water blocking curtain wall lower end, including connects with water blocking curtain wall, shape and the matched fixed structure of water blocking curtain wall；Surface of the fixed structure far from the water blocking curtain wall and multiple rigidity the being vertically arranged unit that blocks water are connect.The utility model structure is frivolous, is easy to construct, low cost, and can effectively reduce flow leakage at water blocking curtain wall side wall.
Description
Technical field
The utility model is related to flows at hydraulic and hydroelectric engineering field, especially a kind of reduction water blocking curtain wall lower end side wall to let out
The rigid stop water of leakage quantity.
Background technology
Water blocking curtain wall can be used for improving the temperature that sluices under large reservoir, slow down water at low temperature adverse effect, it can also be used to slow down sea
Numerous ecological engineering fields such as mouth salt water encroachment phenomenon.It can underwater operation in construction, it is not necessary to empty construction area water body, show
Work reduces construction cost.But when underwater operation, deep water underwater topography can not finely be corrected, this makes water blocking curtain wall
Gap is inevitably left between lower end side wall and landform, flow is caused to leak, influences the engineering effort of water blocking curtain wall.
How larger water blocking curtain wall size is, up to tens thousand of square meters.After the assembly of water blocking curtain wall is in place, side wall multidigit is in underwater
The position of tens meters or even up to a hundred meters depths, the prior art can not close gap under water.Therefore it need to be adopted before assembly
Measure is taken to reduce the leakage of flow at gap.
For large-scale water blocking curtain wall, operation platform is mostly the narrow long types structure such as pontoon bridge, and construction area is narrow.Water blocking curtain wall
When decentralization assembly, mostly lift.It is limited by execution conditions, is difficult to lift that volume is excessive, dress of preponderance in narrow platform
It sets, therefore is limited by execution conditions, waterproofing device must have characteristic that is frivolous, easily assembling.
The research of water blocking curtain wall is less at this stage, not yet proposes have in the industry for above-mentioned the problem of being revealed about side wall flow
The solution of effect.
Invention content
Technical problem to be solved in the utility model is, in view of the shortcomings of the prior art, it is frivolous to provide a kind of structure, is easy to
Construction, cost is relatively low, and can effectively reduce the stop water of flow leakage at water blocking curtain wall side wall.
In order to solve the above technical problems, technical solution used by the utility model is：A kind of reduction water blocking curtain wall lower end
The rigid stop water of flow leakage rate at side wall, including it is at least one it is being vertically arranged, connect with water blocking curtain wall bottom end it is rigid
Property blocks water unit.
The rigidity unit that blocks water is connect by fixed structure with the water blocking curtain wall, the fixed structure shape with it is described
Water blocking curtain wall shape matches.Increase the structural strength of stop water.
By above structure, change the flaring fluidised form that water blocking curtain wall side wall is formed with landform, it is alternate to form sudden expansion-sudden contraction
Fluidised form.The fluidised form water body turbulent fluctuation is violent, flow head loss bigger.For an equal amount of gap, leakage can reduce about one
Half.
The rigidity block water element number be 1~5.The element number that blocks water is more, and block-water effect is better, but blocks water list
First quantity more increases, and the promotion of block-water effect is more limited, thus be set as 1~5 it is relatively inexpensive, and can guarantee and preferably block water
Effect.
When the rigidity block water unit be more than two when, the rigidity interval between unit that blocks water is more than the rigidity
Block water the length of unit；Alternatively, under water impact, the rigidity blocks water unit bottom end gap increasing amplitude no more than 50%.It protects
Demonstrate,prove preferable block-water effect.
The rigidity element number that blocks water is 3, and two neighboring rigidity block water between unit between be divided into 10m.
The unit that blocks water is the rigid unit that blocks water；The rigidity unit that blocks water includes that top is fixed with the fixed structure
The water fender of connection；The water fender top is fixedly connected by hinged-support with the fixed structure.Rigidity blocks water unit not only
The situation moderate suitable for flow velocity applies also for the situation that flow velocity is larger at the leak gap of water blocking curtain wall bottom, has a wide range of application.
Compared with prior art, it is had the beneficial effect that possessed by the utility model：The utility model structure is frivolous, is easy to apply
Work, low cost, and flow leakage at water blocking curtain wall side wall can be effectively reduced.
Description of the drawings
Fig. 1 is that the utility model water blocking curtain wall and stop water arrange vertical section schematic diagram；
Fig. 2 is the utility model rigidity stop water example structure figure.
Specific implementation mode
Embodiment the present embodiment relies on Guizhou clear water river third stock market water at low temperature harnessing project.Third stock market
It is the second level in the step hydropower station of 15, Wushui River mainstream, has many years regulation performance, reservoir operation scheme 475.00m maximum
Height of dam 185.5m, generating system by piloting water water inlet floor elevation 408.00m.After reservoir filling, reservoir area shows apparent temperature
Lamination, bottom storehouse water temperature are only 9.6 DEG C, and the temperature that causes to sluice under spring and summer season is less than water temperature under natural environment, to downstream fish
Oviposition breeding have an adverse effect.It, need to be on powerplant intakes for fish can be made to have suitable water temperature condition in the egg-laying season
Water blocking curtain wall, which is built, at trip about 250m improves the temperature that sluices under third stock market.Curve 2 is that water blocking curtain wall takes in power station in Fig. 1
Mouth of a river elevation is with the vertical section of lower part.
Place is built in water blocking curtain wall, underwater topography 1 is coating, complex shape.Existing engineering means are only capable of water blocking curtain
The chinky altitude of wall lower end and landform is reduced to 1m ~ 2m.According to numerical simulation calculation, in the May in temperature egg-laying season of fish reproduction,
The gap mean flow rate is about 0.42m/s, and water leakage is about 61m3/ s, unit width water leakage are about 0.84m2/s.In San Banxi
Reservoir area, bottom storehouse are water at low temperature, and the leakage of a large amount of water at low temperature has very big adverse effect to the water temperature improvement of water blocking curtain wall,
Therefore need to stop water be set in water blocking curtain wall bottom end.
Fig. 2 show rigid stop water.The structure is connected by curved surface fixed structure 3 with water blocking curtain wall, connection type
For bind or welding.Hinged-support 6 is set in structure 3 fixes rigid water fender 7.Water fender material is depending on flow rate of water flow（If water
It is big to flow impact force, it may be considered that steel plate, concrete slab etc., plastic-steel board also may be used if water flow impact pressure is moderate.In principle can water blocking,
And water impact lower swing less just, after swing, bottom end gap can increase.Increasing amplitude is no more than 50% and is advisable.Or pendulum
When dynamic, it must not collide with adjacent water blocking unit）, cannot have under the impact of flow significantly swing in principle.
Stop water is simulated using vertical two dimensional model model, water flow inlet and outlet is pressure
Boundary, pressure difference are 0.005m heads.Only water blocking curtain wall, when the chinky altitude 2m of curtain wall bottom end, mean flow rate is at gap
0.36m/s, discharge per unit width 0.72m2/s.Increase upper stop water in water blocking curtain wall bottom, the element number that blocks water is 3, away from curtain
The horizontal distance of wall bottom end is respectively 20m, 30m and 40m, and 10m is divided between three units that block water.Stop water and landform gap
Height is identical as water blocking curtain wall, is 2m.According to the flow field analysis of numerical simulation result, most of flow is consumed at the structure
Kinetic energy, mean flow rate is reduced to 0.22m/s, discharge per unit width to be reduced to 0.44m at gap239% percolating water has been fallen in/s, blocking
Stream.
As it can be seen that the present embodiment block-water effect is good, there is preferable promotional value.
Claims (8)
1. a kind of rigid stop water reducing flow leakage rate at the side wall of water blocking curtain wall lower end, which is characterized in that including at least
One it is being vertically arranged, pass through fixed structure（3）With water blocking curtain wall（2）The rigidity of bottom end connection blocks water unit；The rigidity resistance
Water unit includes top and the fixed structure（3）The water fender being fixedly connected（7）.
2. the rigid stop water according to claim 1 for reducing flow leakage rate at the side wall of water blocking curtain wall lower end, special
Sign is, the fixed structure（3）Shape and the water blocking curtain wall（2）Shape matches.
3. the rigid stop water according to claim 1 for reducing flow leakage rate at the side wall of water blocking curtain wall lower end, special
Sign is, the rigidity element number that blocks water is 1~5.
4. the rigid stop water according to claim 3 for reducing flow leakage rate at the side wall of water blocking curtain wall lower end, special
Sign is, the rigidity element number that blocks water is 3, and two neighboring rigidity block water between unit between be divided into 10m.
5. the rigid stop water according to claim 3 for reducing flow leakage rate at the side wall of water blocking curtain wall lower end, special
Sign is, when the rigidity block water unit be more than two when, the rigidity interval between unit that blocks water is more than the rigidity
Block water the length of unit.
6. the rigid stop water according to claim 1 for reducing flow leakage rate at the side wall of water blocking curtain wall lower end, special
Sign is, under water impact, the rigidity blocks water unit bottom end gap increasing amplitude no more than 50%.
7. the rigid stop water according to claim 1 for reducing flow leakage rate at the side wall of water blocking curtain wall lower end, special
Sign is, the water fender（7）Top passes through hinged-support（6）With the fixed structure（3）It is fixedly connected.
8. the rigid stop water according to claim 7 for reducing flow leakage rate at the side wall of water blocking curtain wall lower end, special
Sign is, the water fender（7）For one kind in steel plate, concrete slab, plastic-steel board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721700964.2U CN207891842U (en) | 2017-12-08 | 2017-12-08 | A kind of rigid stop water reducing flow leakage rate at the side wall of water blocking curtain wall lower end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721700964.2U CN207891842U (en) | 2017-12-08 | 2017-12-08 | A kind of rigid stop water reducing flow leakage rate at the side wall of water blocking curtain wall lower end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207891842U true CN207891842U (en) | 2018-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721700964.2U Active CN207891842U (en) | 2017-12-08 | 2017-12-08 | A kind of rigid stop water reducing flow leakage rate at the side wall of water blocking curtain wall lower end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207891842U (en) |
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2017
- 2017-12-08 CN CN201721700964.2U patent/CN207891842U/en active Active
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