CN210728760U - Regular flushing type sand basin capable of increasing overflowing capacity - Google Patents
Regular flushing type sand basin capable of increasing overflowing capacity Download PDFInfo
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- CN210728760U CN210728760U CN201921311924.8U CN201921311924U CN210728760U CN 210728760 U CN210728760 U CN 210728760U CN 201921311924 U CN201921311924 U CN 201921311924U CN 210728760 U CN210728760 U CN 210728760U
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Abstract
The utility model discloses an increase regular washout formula desilting pond of ability of overflowing, including the reposition of redundant personnel system of intaking, water sand separation working section, catchment overflow system and towards the husky system of arranging, water sand separation working section divide into advection district and surface water collection area, water sand separation working section adopts n individual pond rooms, every pond room sets up the form of arranging of 2n individual pond railway carriage or compartment of 2 pond railway carriages or compartments, water sand separation working section hangs on each pond railway carriage or compartment partition wall and chooses to set up vertical pedestrian corridor, totally 4n vertical pedestrian corridor of railway carriage or compartment, utilize pond railway carriage or compartment transverse structure seam department double cross beam to set up horizontal pedestrian corridor, 2n individual pond railway carriage or compartment sets up vertical water catch bowl alone in surface water collection area each pond railway carriage or compartment, totally 4n vertical water catch bowl of railway carriage or compartment, vertical water catch bowl is along the journey width equal, the base slope is for overflowing to the design of steep. The utility model improves the operation safety of the desilting basin and the upstream and downstream hydraulic buildings; the effective flow capacity of the desilting basin is greatly improved; the desilting basin facilitates the desilting, flushing, overhauling and maintenance in the operation period.
Description
Technical Field
The utility model relates to a sediment trap among hydraulic and hydroelectric engineering, especially a regular flushing formula sediment trap that increases the ability of overflowing.
Background
Because of the problems of water quality requirement of urban water supply, desertification of irrigation soil, cyclic utilization of water resources, abrasion of hydraulic and hydroelectric engineering units and the like, various water diversion (water taking) projects have certain requirements on the sand content of water bodies, a sand basin is generally required to be arranged, and the regular flushing type sand basin is widely applied at present. The upstream water demand and the downstream water demand of the regular flushing type desilting basin are different, and when the engineering operation is improper, even great potential safety hazards are caused to upstream and downstream buildings and the surrounding environment of the desilting basin. During the operation of the regular flushing type desilting basin, the working section of the basin compartment needs to be inspected, overhauled, cleaned and flushed for the second time, so that a reasonable channel is arranged to facilitate the passing of personnel and small equipment.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a regular flushing type desilting pool that increases the ability of overflowing is provided, reduces the potential safety hazard that regular flushing type desilting pool upstream and downstream flow mismatch arouses, improves the whole security of regular flushing type desilting pool to the adaptability of ground condition and structure, improves the effective ability of overflowing in regular flushing type desilting pool, and it facilitates to maintain for the operation period in regular flushing type desilting pool.
In order to solve the technical problem, the utility model discloses a technical scheme is: a regular flushing type sand basin capable of increasing overflowing capacity comprises a water inlet flow dividing system, a water and sand separating working section, a water collecting overflow system and a flushing sand discharging system, wherein the water and sand separating working section is divided into a horizontal flow area and a surface water collecting area, the water and sand separating working section adopts n pool chambers, each pool chamber is provided with an arrangement form of 2n pool chambers of 2 pool chambers, the water and sand separating working section is provided with a longitudinal pedestrian corridor and 4n longitudinal pedestrian corridors in total in a hanging manner on partition walls of the pool chambers, a transverse cross beam at a transverse structural seam of the pool chambers is provided with a transverse pedestrian corridor, the 2n pool chambers are independently provided with longitudinal water collecting grooves in the surface water collecting area, the 4n longitudinal water collecting grooves are equal in overflowing range width, and a bottom slope is designed to be a forward steep slope.
And a longitudinal structural seam is arranged between the n pool chambers, and each pool chamber is a single bearing whole.
The water collecting overflow system comprises a total water collecting tank, a downstream overflow weir and a water draining tank which are sequentially arranged at the tail part of the water-sand separation working section, and the tail end of the water draining tank is provided with a stilling pool and a water draining tunnel.
The utility model has the advantages that: the operation safety of the desilting basin and upstream and downstream hydraulic buildings is improved; the effective flow capacity of the desilting basin is greatly improved, so that the scale of the desilting basin can be reduced; the desilting basin facilitates the desilting, flushing, overhauling and maintenance in the operation period.
Drawings
FIG. 1 is a schematic plan view of a periodically flushing desilting basin with increased flow capacity;
FIG. 2 is a top view of the periodically flushing desilting basin with increased flow capacity of the present invention;
FIG. 3 is a cross-sectional view A-A of FIGS. 1 and 2;
FIG. 4 is a cross-sectional view B-B of FIGS. 1 and 2;
FIG. 5 is a cross-sectional view C-C of FIGS. 1 and 2;
in the figure: 1- -water inlet diversion system; 2- -water and sand separating working section; 3- -catchment overflow system; 4- -sand flushing and discharging system; 5- - -a surface water collection area; 6-a total water collecting tank; 7- -overflow weir; 8- - -a drainage tank; 9- - -stilling pool; 10- - -a drainage tunnel; 11- -a tank room; 12- - -a tank compartment; 13- - -a vertical pedestrian corridor; 14- -longitudinal structural seam; 15- - -a longitudinal sump; 23- -lateral pedestrian aisles; the direction indicated by the arrow is the water flow direction; the water level symbol indicates a design water level of a corresponding position.
Detailed Description
The invention will be described in further detail with reference to the following drawings and embodiments:
as shown in fig. 1-5, the utility model discloses an increase regular washout type desilting basin of ability of overflowing, including inflow reposition of redundant personnel system 1, water and sand separation working section 2, catchment overflow system 3 and flushing sediment discharge system 4, water and sand separation working section divide into advection district and surface water collection area 5, water and sand separation working section 2 adopts n pond rooms 11, every pond room sets up the arrangement form of 2n pond railway carriage or compartment 12 of 2 pond railway carriages or compartments, water and sand separation working section 2 hangs on each pond railway carriage or compartment 12 partition wall and chooses to set up vertical pedestrian corridor 13, totally 4n vertical pedestrian corridor 13, utilize pond railway carriage or compartment 12 horizontal structure seam double cross-beam to set up horizontal pedestrian corridor 23, 2n pond railway carriage or compartment 12 sets up vertical water collection tank 15 alone at each pond railway carriage or compartment of surface water collection area 5, totally 4n vertical water collection tank 15 overflows the width along the journey and equals, the bottom slope is the design for the cisoid.
Longitudinal structural seams 14 are arranged among the n cell chambers 11, and each cell chamber is a single bearing whole.
The water collecting overflow system 3 comprises a total water collecting tank 6, a downstream overflow weir 7 and a water drainage tank 8 which are sequentially arranged at the tail part of the water-sand separation working section 2, and the tail end of the water drainage tank 8 is provided with a stilling pool 9 and a water drainage tunnel 10.
The overflow drainage structure of the utility model improves the operation safety of the desilting basin and the upstream and downstream hydraulic buildings; the vertical water collecting grooves are independently arranged in each tank of the utility model, and the design of equal-width steep slopes is adopted in the vertical water collecting grooves, thus greatly improving the effective overflowing capacity of the desilting tank; the utility model discloses setting up of well pedestrian corridor has made things convenient for desilting, washing, maintenance and maintenance of desilting pond operation period.
The following is a detailed description with reference to specific examples:
a large-scale diversion pump station engineering is designed with a regular flushing type desilting basin according to the requirements of industry and agriculture on water quality and the requirements of abrasion of a water pump unit and the topographic and geological conditions of a hub area. A 550m long pressureless tunnel is arranged between the desilting basin and the upstream water intake, and the downstream of the desilting basin is connected with an underground pump station system through a 2020m long pressureless tunnel. The sand settling tank comprises a water inlet and diversion system, a water-sand separation working section, a water collecting and overflowing system and a sand flushing and discharging system. The water inlet flow dividing system is provided with 3 water dividing gates and 6 sand cleaning gates for controlling the inflow of each pool chamber and each pool compartment. The total length of the water-sand separation working section is 120m, and the water-sand separation working section consists of a horizontal flow area and a surface water collecting area, wherein the length of the surface water collecting area is 70.6 m. The water and sand separation working section is provided with 3 pool chambers and 6 pool chambers, and longitudinal pedestrian corridors are arranged on partition walls on two sides of each pool chamber in an overhanging manner, wherein 12 longitudinal pedestrian corridors are arranged, the height is 831.00m, and the width is 1.2 m. And transverse connecting beams are arranged on the longitudinal pedestrian corridor every 5m or so. Set up horizontal pedestrian corridor on the terminal horizontal structure seam department twin beams of advection section and surface water-collecting area respectively, width 1m, through indulging, horizontal pedestrian corridor, the easy row of operation personnel in 6 pond rooms of crossing that can be convenient. Longitudinal structural seams are arranged among all the chambers of the water-sand separation working section, 2 longitudinal structural seams are formed in total, and all the chambers are an independent double-box type bearing whole. Longitudinal water collecting grooves are respectively arranged on partition walls on two sides of each tank compartment of the surface water collecting area, the total number of the longitudinal water collecting grooves is 12, the net width of each longitudinal water collecting groove is 0.95m, and the depth of each longitudinal water collecting groove is gradually changed from 1.48m to 2.67 m.
The water collecting overflow system is positioned at the tail end of the water-sand separation working section and comprises a total water collecting tank, a downstream overflow weir, a water drainage tank, a stilling pool and a water drainage tunnel. The net width of the total water collecting tank is 5m, the longitudinal slope is 1/3000, and the designed water level is 829.196 m; downstream weir crest elevation 829.320 m; the clear width of the drainage tank is 2.5m, the longitudinal slope is 1/200, and the tail end elevation is 824.50 m; the tail end of the water drainage tank is connected with a practical overflow weir, the height of the weir top is 824.50m, the tail end of the weir is provided with a stilling pool, the length of the stilling pool is 18m, and the height of the pool bottom is 819.75 m; the stilling pool is connected with a water drain hole. When the water resistance of a downstream water delivery system of the desilting basin is suddenly changed or the upstream water intake gate of the desilting basin is improperly controlled, the water level of the total water collecting tank can exceed the designed water level 829.198m until the water level exceeds the weir top elevation 829.320m of the downstream overflow weir, and at the moment, the excessive water can pass through the downstream overflow weir, enter the water drainage tank, is dissipated by the dissipation basin, and is safely drained through a water drainage tunnel. The safety accident caused by the overflow of the downstream water delivery system of the desilting basin is avoided, and the loss of life and property of the engineering and nearby people caused by the overflow of the main structure of the desilting basin is also avoided.
The above-mentioned embodiments are only used for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, the scope of the present invention should not be limited by the embodiment, that is, all equivalent changes or modifications made by the spirit of the present invention should still fall within the scope of the present invention.
Claims (3)
1. A regular flushing type desilting basin for increasing overflowing capacity comprises a water inlet and distribution system (1), a water-sand separation working section (2), a water collection and overflow system (3) and a sand flushing and discharging system (4), and is characterized in that the water-sand separation working section is divided into a horizontal flow area and a surface water collection area (5), the water-sand separation working section (2) adopts n pool chambers (11), each pool chamber is provided with an arrangement form of 2n pool chambers (12) of 2 pool chambers, the water-sand separation working section (2) is suspended and cantilevered on a partition wall of each pool chamber (12) to be provided with a longitudinal pedestrian corridor (13) and 4n longitudinal pedestrian corridors (13), a transverse pedestrian corridor (23) is arranged by utilizing a double cross beam at a transverse structural seam of the pool chamber (12), the 2n pool chambers (12) are independently provided with longitudinal water collection grooves (15) in each pool of the surface water collection area (5), and the total 4n longitudinal water collection grooves (15), the longitudinal water collecting grooves (15) have equal flow width along the way, and the bottom slope is designed to be a forward steep slope.
2. A periodically flushing desilting basin with increased flow capacity according to claim 1, characterized in that longitudinal structural seams (14) are provided between the n chambers (11), each chamber being a single load-bearing whole.
3. A periodically-flushing type desilting basin with increased overflowing capacity according to claim 1, wherein the water-collecting overflow system (3) comprises a total water-collecting tank (6), a downstream overflow weir (7) and a water drainage tank (8) which are sequentially arranged at the tail part of the water-sand separation working section (2), and a stilling basin (9) and a water drainage hole (10) are arranged at the tail end of the water drainage tank (8).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311924.8U CN210728760U (en) | 2019-08-13 | 2019-08-13 | Regular flushing type sand basin capable of increasing overflowing capacity |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921311924.8U CN210728760U (en) | 2019-08-13 | 2019-08-13 | Regular flushing type sand basin capable of increasing overflowing capacity |
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| CN210728760U true CN210728760U (en) | 2020-06-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339603A (en) * | 2019-08-13 | 2019-10-18 | 中国电建集团北京勘测设计研究院有限公司 | A kind of periodic-flushing de-silting basin increasing conveyance capacity |
-
2019
- 2019-08-13 CN CN201921311924.8U patent/CN210728760U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110339603A (en) * | 2019-08-13 | 2019-10-18 | 中国电建集团北京勘测设计研究院有限公司 | A kind of periodic-flushing de-silting basin increasing conveyance capacity |
| CN110339603B (en) * | 2019-08-13 | 2024-06-14 | 中国电建集团北京勘测设计研究院有限公司 | Regular flushing type sand sedimentation tank with increased overflow capacity |
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