CN204080924U - High aititude coombe water-fetching head - Google Patents
High aititude coombe water-fetching head Download PDFInfo
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- CN204080924U CN204080924U CN201420543766.XU CN201420543766U CN204080924U CN 204080924 U CN204080924 U CN 204080924U CN 201420543766 U CN201420543766 U CN 201420543766U CN 204080924 U CN204080924 U CN 204080924U
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Abstract
The utility model discloses the intake strucure used in a kind of water intake engineering, especially a kind of High aititude coombe water-fetching head.The utility model provides a kind of High aititude coombe water-fetching head being applicable to High aititude, high concentration of sediment area, comprise riverbed and the outlet pipe established of bed along the river, it is characterized in that: also comprise being disposed on and riverbed chooses streaming water intaking cell structure and dark culvert formula water intaking structure; Described streaming water intaking cell structure of choosing comprises flip bucket, inclination grid and water intaking ditch, described water intaking ditch is communicated with outlet pipe, described flip bucket and water intaking bank water (flow) direction set gradually, described inclination grid is sealed on the opening part of water intaking ditch, and the grid that tilts is downward-sloping along water (flow) direction; Described dark culvert formula water intaking structure comprises dark culvert and filtering layer, and described dark culvert to be arranged in riverbed and to be communicated with outlet pipe, and under the opening part of described dark culvert is positioned at frost line, described filtering layer is sealed on secretly contains opening part.
Description
Technical field
The utility model relates to the intake strucure used in a kind of water intake engineering, especially a kind of High aititude coombe water-fetching head.
Background technology
In the mountain area of NORTHWEST CHINA southwest, mainly with mountain area coombe as main water source, coombe refers in particular to the intermountain streams or river course that rely on massif rainfall runoff or massif rock gap water to be formed here, have the wet season and dry season water yield difference large feature; Especially for the place of power station water supply for construction, campsite drinking water, resettlement arrangement spot or small-sized market town drinking water, adopt mountain area coombe to have and rely on flow by gravity energy-conservation, the good feature of water quality.But also there is the following feature being unfavorable for fetching water in these mountain area coombes: 1. physical features drop is large and changeable, and the longitudinal river slope of coombe is large; 2. current cutting-in is large, and river valley is steep, and stability is stronger; 3. flow, change in flow scope are large; 4. flood period current sand amount of holding under the arm large, bed load is many, and particle is thick; 5. height above sea level is general higher, and in cold district, the water surface not easily forms stable ice sheet, and the hungry ice of water is many, and the ice age is long; 6. natural calamity, the chance occurred as landslide, mud-rock flow etc. is more.
Traditional normal mode adopted of coombe water intaking has weir to fetch water and bottom sieve frame blocks the water intaking of grid dam.There is following problem in these two kinds of intake strucures: 1. channel is easily silted up by silt and constant cleaning, can not ensure continuous operation; 2. easily freezing; 3. all higher to the coverage scale of vegetation coombe, the branch club be mingled with in current easily makes the grid of bottom sieve frame barrier block, and needs certain operational management personnel regular or irregularly to check; The particles such as the coarse sand 4. in current, microlith, gravel can block grid inlet opening, reduce inflow; 5. can directly block trash rack, channel and follow-up grit chamber etc. during current outburst mud-rock flow, labor cleaning cannot be carried out at once.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of High aititude coombe water-fetching head being applicable to High aititude, high concentration of sediment area.
The utility model solves the High aititude coombe water-fetching head that its technical problem adopts, and comprises riverbed and the outlet pipe established of bed along the river, it is characterized in that: also comprise being disposed on and riverbed chooses streaming water intaking cell structure and dark culvert formula water intaking structure;
Described streaming water intaking cell structure of choosing comprises flip bucket, inclination grid and water intaking ditch, described water intaking ditch is communicated with outlet pipe, described flip bucket and water intaking bank water (flow) direction set gradually, described inclination grid is sealed on the opening part of water intaking ditch, and the grid that tilts is downward-sloping along water (flow) direction;
Described dark culvert formula water intaking structure comprises dark culvert and filtering layer, and described dark culvert to be arranged in riverbed and to be communicated with outlet pipe, and under the opening part of described dark culvert is positioned at frost line, described filtering layer is sealed on secretly contains opening part.
Further, described flip bucket is inclined upwardly along water (flow) direction.
Further, described dark culvert formula water intaking structure also comprises brace summer and horizontal grate, and described brace summer is arranged on the dark opening part contained, and described horizontal grate is arranged on brace summer, and described filtering layer is arranged on horizontal grate.
Further, described dark culvert is made up of the steel concrete channel of outer field concrete backfill layer and internal layer.
Further, the cross section of described filtering layer is isosceles trapezoid shape.
The beneficial effects of the utility model are: owing to have employed flip bucket and inclination grid, bed loads a large amount of in current goes out along flip bucket impelling, avoid a large amount of impurity and enter water intaking ditch through inclination grid, the cooperation of flip bucket and inclination grid can reduce the alluvial of impurity greatly; Meanwhile, when winter tilt grid freeze after, can be fetched water by the dark culvert be positioned under frost line, whole like this water intaking structure neither needs to want desilting, also gets final product longtime running without the need to deicing.
Accompanying drawing explanation
Fig. 1 is top view of the present utility model;
Fig. 2 is schematic longitudinal section of the present utility model;
Fig. 3 is the B-B line sectional view of Fig. 1;
Component, position and numbering in figure: water pipe 1, choose streaming water intaking cell structure 2, dark culvert formula water intaking structure 3, flip bucket 4, water intaking ditch 5, inclination grid 6, secretly contain 7, filtering layer 8, horizontal grate 9, brace summer 10, steel concrete channel 11, concrete backfill layer 12.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises riverbed and the outlet pipe 1 established of bed along the river, also comprises being disposed on riverbed chooses streaming water intaking cell structure 2 and dark culvert formula water intaking structure 3; Spacing and the quantity of choosing streaming water intaking cell structure 2 and dark culvert formula water intaking structure 3 should require according to actual coombe situation and water intaking and determine
Described streaming water intaking cell structure 2 of choosing comprises flip bucket 4, inclination grid 6 and water intaking ditch 5, described water intaking ditch 5 is communicated with outlet pipe 1, described flip bucket 4 and water intaking ditch 5 set gradually along water (flow) direction, described inclination grid 6 is sealed on the opening part of water intaking ditch 5, and the grid 6 that tilts is downward-sloping along water (flow) direction; The structure of choosing streaming water intaking cell structure 2 concrete is shown in Figure 2, current are gone out by impelling through flip bucket 4, and in water, most bed load is also dished out with current and crossed inclination grid 6, avoid blocking inclination grid, inclination grid is originally as skewed simultaneously, and bed load is difficult to assemble above.Doing so avoids a large amount of impurity and enter water intaking ditch through inclination grid.Preferably,
Flip bucket 4 is inclined upwardly along water (flow) direction, can improve cast like this.Flip bucket 4 angle needs to design in conjunction with local hydrological data.Choose the water intaking that streaming water intaking cell structure 2 is mainly used between dry season, be comparatively reasonably dark culvert formula water intaking structure 3 end being arranged in main flow, and tributary is arranged.Object is not blocking with flood season the structure such as channel or preliminary sedimentation tank of fetching water, and dry season can intercept current as much as possible, and guarantees when dark culvert formula water intaking structure 3 renovates filtering layer fraction of fetching water.
Described dark culvert formula water intaking structure 3 comprises secretly contains 7 and filtering layer 8, and described dark culvert 7 to be arranged in the riverbed in and to be communicated with outlet pipe 1, and under the opening part of described dark culvert 7 is positioned at frost line, described filtering layer 8 is sealed on dark culvert 7 opening parts.
In order to improve the intensity of dark culvert formula water intaking structure 3, as shown in Figure 3, described dark culvert formula water intaking structure 3 also comprises brace summer 10 and horizontal grate 9, and described brace summer 10 is arranged on the opening part of dark culvert 7, described horizontal grate 9 is arranged on brace summer 10, and described filtering layer 8 is arranged on horizontal grate 9.Described dark culvert 7 is made up of the steel concrete channel 11 of outer field concrete backfill layer 12 and internal layer.The cross section of filtering layer 8 can be set to isosceles trapezoid shape.
The deployment of described dark culvert formula water intaking structure 3 is as follows: measure dry point landform, and typical case's water quality, determined secretly to contain the setting area of formula water intaking structure 3, secretly contained the gradient, Grill space, filtering layer grating sample analysis flood season and dry season.Dark culvert formula water intaking structure 3 should be arranged according to water withdrawal Combining with terrain situation, can be arranged on main flow and tributary, and the water intaking area calculated for improving water intaking fraction suggestion water withdrawal should leave the surplus capacity of 20% as far as possible.For guaranteeing dark contain current in 7 and do not freeze, according to geological condition, can bury underground secretly containing 7 to frost penetration as far as possible, and according to the maximum particle diameter not sedimentary yelocity situation of logical filtering layer 8, improve dark culvert 7 gradients.Dark culvert formula water intaking structure 3 is mainly used in two kinds of operating modes.The first operating mode is when flood water is larger, the situation that bed load is more, the impurity such as a large amount of leaf branch, silt are mingled with in current due to flood season, the alluvial that inclination grid 6 can cause preliminary sedimentation tank if directly enter, therefore when flood season, current were by choosing streaming water intaking cell structure 2, inclination grid 6 of directly jumping over falls into downstream, and most of water withdrawal obtains by secretly containing 7.The second operating mode is, when winter, top layer current froze, inclination grid 6 gap easily freezes and causes and cannot fetch water, under horizontal grate 9 now owing to secretly containing formula water intaking structure 3 is positioned at frost line, the channel that rationally can import rapidly that the water entered by filtrate is arranged due to the gradient forms the enough depth of water and flow to preliminary sedimentation tank.
Claims (5)
1. High aititude coombe water-fetching head, comprises riverbed and the outlet pipe (1) established of bed along the river, it is characterized in that: also comprise choose streaming water intaking cell structure (2) and the dark culvert formula be disposed on riverbed and to fetch water structure (3);
Described streaming water intaking cell structure (2) of choosing comprises flip bucket (4), inclination grid (6) and water intaking ditch (5), described water intaking ditch (5) is communicated with outlet pipe (1), described flip bucket (4) and water intaking ditch (5) set gradually along water (flow) direction, described inclination grid (6) is sealed on the opening part of water intaking ditch (5), and the grid that tilts (6) is downward-sloping along water (flow) direction;
Described dark culvert formula water intaking structure (3) comprises dark culvert (7) and filtering layer (8), described dark culvert (7) to be arranged in riverbed and to be communicated with outlet pipe (1), under the opening part of described dark culvert (7) is positioned at frost line, described filtering layer (8) is sealed on dark culvert (7) opening part.
2. High aititude coombe water-fetching head as claimed in claim 1, is characterized in that: described flip bucket (4) is inclined upwardly along water (flow) direction.
3. High aititude coombe water-fetching head as claimed in claim 1, it is characterized in that: described dark culvert formula water intaking structure (3) also comprises brace summer (10) and horizontal grate (9), described brace summer (10) is arranged on the opening part of dark culvert (7), described horizontal grate (9) is arranged on brace summer (10), and described filtering layer (8) is arranged on horizontal grate (9).
4. High aititude coombe water-fetching head as claimed in claim 1, is characterized in that: described dark culvert (7) is made up of the steel concrete channel (11) of outer field concrete backfill layer (12) and internal layer.
5. High aititude coombe water-fetching head as claimed in claim 1, is characterized in that: the cross section of described filtering layer (8) is isosceles trapezoid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420543766.XU CN204080924U (en) | 2014-09-19 | 2014-09-19 | High aititude coombe water-fetching head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420543766.XU CN204080924U (en) | 2014-09-19 | 2014-09-19 | High aititude coombe water-fetching head |
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| Publication Number | Publication Date |
|---|---|
| CN204080924U true CN204080924U (en) | 2015-01-07 |
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| CN201420543766.XU Active CN204080924U (en) | 2014-09-19 | 2014-09-19 | High aititude coombe water-fetching head |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735407A (en) * | 2016-02-03 | 2016-07-06 | 石河子大学 | Method for getting water from surface water source, anti-blocking water getting head of surface water source and water getting system composed of anti-blocking water getting head |
| CN113006196A (en) * | 2021-03-04 | 2021-06-22 | 甘肃省水利水电勘测设计研究院有限责任公司 | Small-flow double water taking system for stream ditch in alpine region |
-
2014
- 2014-09-19 CN CN201420543766.XU patent/CN204080924U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735407A (en) * | 2016-02-03 | 2016-07-06 | 石河子大学 | Method for getting water from surface water source, anti-blocking water getting head of surface water source and water getting system composed of anti-blocking water getting head |
| CN113006196A (en) * | 2021-03-04 | 2021-06-22 | 甘肃省水利水电勘测设计研究院有限责任公司 | Small-flow double water taking system for stream ditch in alpine region |
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