CN211328266U - Dual desilting basin - Google Patents
Dual desilting basin Download PDFInfo
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- CN211328266U CN211328266U CN201922230945.3U CN201922230945U CN211328266U CN 211328266 U CN211328266 U CN 211328266U CN 201922230945 U CN201922230945 U CN 201922230945U CN 211328266 U CN211328266 U CN 211328266U
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Abstract
The utility model discloses a dual desilting pond, including water inlet and delivery port, its characterized in that, be equipped with A section desilting district, B section desilting district and C section desilting district between water inlet and the delivery port, the water inlet is connected with A section desilting district, C section desilting district lies in the both sides in A section desilting district and is connected with the delivery port, B section desilting district sets up between A section desilting district and C section desilting district for rivers are two S type routes that are the symmetry from the water inlet to the delivery port between. Compared with the prior art, the sand sedimentation tank can increase the working length in a limited space to form a dual sand sedimentation system, complete sedimentation of the pushed and moved mass silt is realized, sedimentation of the suspended mass silt is more than 90%, the sedimentation effect of the silt is improved, the requirement of agricultural irrigation is met, and the development of the agricultural micro-irrigation technology is promoted.
Description
Technical Field
The utility model relates to a dual desilting pond belongs to the agricultural irrigation field.
Background
Xinjiang, located in the west of China, has an annual average precipitation of only 130mm and an evaporation capacity of 1200mm, and is a typical arid and semi-arid region. The water supply mainly depends on glaciers and permanent accumulated snow, so that Sinkiang mostly belongs to mountain stream rivers, the slope is steep and has a rapid flow, the sand content is large, the particles are not uniform, and although a certain engineering measure is adopted to settle the sand, the sand settlement is not thorough, the sand accumulation phenomenon is generated in the channel and the ditch of agricultural irrigation, the problems of blocking of spraying and filling devices in the agricultural irrigation, overlarge occupied space of the engineering and the like are easily caused, and the Sinkiang agricultural development is not facilitated.
The silt in the water flow is divided into pushing mass silt and suspending mass silt, and the pushing mass silt refers to silt particles which roll, move, jump or move in a laminar motion along the river bottom in the water flow and are frequently exchanged with the silt on the bed surface (bed sand for short) in the motion process. The suspended load silt is silt which moves in a suspended manner in water flow, most of the suspended load silt is fine sand and clay particles, and is the main part of the river sand conveying amount, and the suspended load silt brings a series of problems to water conservancy and hydropower engineering, such as reservoir sedimentation, river channel evolution, sedimentation of a diversion canal head, namely a canal system and the like.
The existing sediment settling method cannot simultaneously carry out sediment settling on the pushing mass sediment and the suspending mass sediment, and the sediment settling effect is not ideal.
Therefore, the utility model provides a dual desilting pond, this desilting pond can increase working length in limited space, forms dual desilting system, realizes pushing away the complete sediment of quality silt, hangs the sediment more than 90% of quality silt, improves the precipitation effect of silt, makes the silt in the rivers carry out furthest's settlement before getting into the channel or irrigating the prelude, satisfies agricultural irrigation's requirement.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a dual desilting pond, this desilting pond can increase working length in limited space, forms dual desilting system, realizes pushing away the complete sediment of quality silt, suspends the sediment more than 90% of quality silt, improves the precipitation effect of silt, makes the silt in the rivers carry out furthest's settlement before getting into the channel or irrigating the prelude, satisfies agricultural irrigation's requirement, promotes the development of agricultural micro-irrigation technique.
In order to achieve the above object, the present invention provides the following technical solutions:
a double desilting basin comprises a water inlet (4) and a water outlet (5), and is characterized in that the desilting basin mainly comprises three desilting areas, namely a section A sand settling area (1), a section B sand settling area (2) and a section C sand settling area (3), the water inlet (4) is connected with the A section of sand settling area (1), the C section of sand settling area (3) is positioned at two sides of the A section of sand settling area (1) and is connected with the water outlet (5), the section B of the sand settling area (2) is arranged between the section A of the sand settling area (1) and the section C of the sand settling area (3), so that the water flow is in two symmetrical S-shaped routes from the water inlet (4) to the water outlet (5), the water flow enters the A section sand settling area (1) from the water inlet (4), flows into the B section sand settling area (2) through the A section sand settling area (1), then enters the C section sand settling area (3) from the B section sand settling area (2), and finally flows out from the water outlet (5);
furthermore, at least one section of the A section of the sediment region (1), the B section of the sediment region (2) and the C section of the sediment region (3) is provided with a flow adjusting plate (6).
Furthermore, the flow adjusting plates (6) are plate-shaped bodies, and the flow adjusting plates (6) are arranged in a staggered mode at intervals and/or are arranged side by side and are parallel to each other.
Furthermore, the inclination angle of the flow adjusting plate (6), namely the included angle between the flow adjusting plate (6) and the water flow direction, is 20-40 degrees.
Furthermore, a gradual change area (7) is arranged between the water inlet (4) and the section A sand settling area (1), the gradual change area (7) is in a horn shape formed by two symmetrical side slopes (7-1), wherein the end with the smaller caliber is connected with the water inlet (4), and the larger end is connected with the section A sand settling area (1).
Preferably, the side slope (7-1) is arc-shaped, the central angle of the arc-shaped side slope (7-1) is 50-70 degrees, and the arc-shaped side slope (7-1) can reduce the eddy whirling scouring of water flow on the side slope (7-1) so as to quickly and stably expand the cross-sectional area of the water flow in the gradual change region.
Furthermore, the tail part of the section B sand settling area (2) is provided with a contraction part (8), and the contraction part (8) is arranged corresponding to the side slope (7-1) of the gradual change area (7).
In actual work, the water inlet (4) is connected with a sluice, water flow is turbulent and high in flow speed when water is discharged, the cross section area of the water flow is gradually and stably increased along with the gradual change area (7), the flow speed of the water flow is reduced and enters the A-section sand settling area (1), the flow speed of the water flow is reduced after the water flow flows through the A-section sand settling area (1), the offset sediment is completely settled, the suspended sediment is partially settled, then the water flow is divided into two parts and flows into the B-section sand settling area (2) from the A-section sand settling area (1), the trace length of the water flow and the sediment flowing through the B-section sand settling area (2) is increased due to the arrangement of the flow adjusting plate (6) in the B-section sand settling area (2), the flow speed of the water flow is further reduced, the water flow forms a swirling flow in the front part of the B-section sand settling area (2), the energy in the water flow is consumed, the flow speed of the water flow entering the C-section sand settling area (3), flow adjusting plate (6) can be further reduce the velocity of flow, effectively reduce the ability of holding with the sand of play pond rivers, can form the whirl simultaneously, further energy dissipation, firm rivers flow state improves the sediment efficiency of suspension matter silt for the sedimentation rate of final suspension matter silt reaches more than 90%, and the migration matter silt is totally precipitated, adopts mechanical desilting by the silt that deposits down at last.
Compared with the prior art, the utility model discloses on the basis of original linear type desilting pond, combine the characteristics in Xinjiang river for this desilting pond can increase working length in limited space, the trace length of extension rivers and silt, form dual desilting system, realize pushing away the complete sediment of quality silt and suspending the sediment more than 90% of quality silt, improve the precipitation effect of silt, make silt in the rivers carry out furthest's settlement before getting into the channel or irrigating the prelude, satisfy agricultural irrigation's requirement, promote the development of agricultural micro-irrigation technique.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Shown in the figure: 1 is a section A sand sediment area, 2 is a section B sand sediment area, 3 is a section C sand sediment area, 4 is a water inlet, 5 is a water outlet, 6 is a flow adjusting plate, 7 is a gradual change area, 7-1 is a side slope, and 8 is a contraction part.
Detailed Description
The preferred embodiments of the present invention will be described in detail below.
The direction of the arrows in the figure is the direction of water flow.
Example 1: referring to fig. 1, a schematic structural diagram of embodiment 1 of the present invention,
a double sand-settling tank comprises a water inlet 4 and a water outlet 5, wherein the sand-settling tank mainly comprises three sand-settling areas, namely an A section sand-settling area 1, a B section sand-settling area 2 and a C section sand-settling area 3, the water inlet 4 is connected with the A section sand-settling area 1, the C section sand-settling area 3 is positioned at two sides of the A section sand-settling area 1 along the water flow direction and is connected with the water outlet 5, the B section sand-settling area 2 is arranged between the A section sand-settling area 1 and the C section sand-settling area 3, so that water flows from the water inlet 4 to the water outlet 5 in two symmetrical S-shaped routes, namely the water flows into the A section sand-settling area 1 from the water inlet 4, flows into the B section sand-settling area 2 in two ways of left and right through the A section sand-settling area 1, then flows into the C section sand-settling area 3 from the B section sand-settling area 2, and finally flows out from the water outlet 5 after the water flows together from the C section sand-settling areas 3 at two sides, thus setting the maximum extension and water flow path of the sand-settling tank in a, the flow velocity of water flow is reduced, the sand settling time is increased, and the sand settling efficiency is improved; the improved water pump is characterized in that a gradual change area 7 is arranged between the water inlet 4 and the A section sand settling area 1, the gradual change area 7 is in a horn shape formed by two symmetrical side slopes 7-1, wherein one end with a smaller caliber is connected with the water inlet 4, the other end with a larger caliber is connected with the A section sand settling area 1, the tail part of the B section sand settling area 2 is provided with a contraction part 8, and the contraction part 8 corresponds to the side slope 7-1 of the gradual change area 7. The section B sand settling area 2 is internally provided with a plurality of flow adjusting plates 6, the flow adjusting plates 6 are plate-shaped bodies, the flow adjusting plates 6 are arranged at intervals in a staggered mode, the trace length of water flow and silt can be effectively increased, the flow velocity of the water flow can be reduced, the water flow energy can be eliminated, the rear portion of the section C sand settling area 3 is provided with a plurality of flow adjusting plates 6 which are parallel to each other and arranged side by side, the flow adjusting plates 6 can further reduce the flow velocity of the water flow, the sand-carrying capacity of the water flow discharged out of the pool can be effectively reduced, meanwhile, a swirling flow can be formed, the energy dissipation can be further realized, the flow state of the water flow can be stabilized; the distance, the size and the number of the flow adjusting plates 6 can be adjusted according to the annual average water flow and the sand content; the inclination angle of the flow adjusting plate 6, namely the included angle between the flow adjusting plate 6 and the water flow direction is 20-40 degrees.
In actual work, the water inlet 4 is connected with a sluice, water flow is turbulent and high in flow speed when water is discharged, the cross-sectional area of the water flow is gradually and stably increased along with the water flow entering the gradual change area 7, the flow speed of the water flow is reduced and enters the A-section sand settling area 1, the flow speed of the water flow is reduced after the water flow flows through the A-section sand settling area 1, the pushed mass silt is completely settled, the suspended mass silt is partially settled, then the water flow is divided into two parts and flows into the B-section sand settling areas 2 on the left side and the right side from the A-section sand settling area 1, the trace length of the water flow and the silt flowing through the B-section sand settling areas 2 is increased due to the arrangement of the flow adjusting plate 6 in the B-section sand settling areas 2, the flow speed of the water flow is further reduced, the water flow forms a rotational flow at the front part and the tail part of the B-section sand settling areas 2, the energy in the water flow is consumed and the flow speed of the water flow entering the C-section sand settling areas 3, and because the rear portion in C section desilting area 3 is equipped with flow adjusting plate 6, the reduction rivers velocity of flow adjusting plate 6 can be further effectively reduces out the ability of holding with the sand of pond rivers, can form the whirl simultaneously, further energy dissipation, firm rivers flow state improves the desilting efficiency of suspended matter silt for the sedimentation rate of suspended matter silt reaches more than 90% in the rivers of final exit, and the pushed matter silt is totally precipitated, and the silt that is precipitated adopts machinery to carry out the desilting at last.
Example 2: referring to fig. 2, which is a schematic structural diagram of embodiment 2 of the present invention, compared with embodiment 1, the present embodiment is different in that: the rear part of the C-section sand settling area 3 is provided with two groups of flow adjusting plates 6 which are parallel to each other and are arranged side by side, the side slope 7-1 is arc-shaped, the central angle of the arc-shaped side slope 7-1 is 50-70 degrees, the arc-shaped side slope 7-1 can reduce the eddy circular scouring of water flow on the side slope 7-1, and the water flow of the gradual change area 7 can be rapidly and stably enlarged in cross section area.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many changes and modifications can be made without departing from the inventive concept, and these changes and modifications all fall into the protection scope of the present invention.
Claims (7)
1. The utility model provides a dual desilting pond, includes water inlet (4) and delivery port (5), its characterized in that, be equipped with three desilting district between water inlet (4) and delivery port (5), A section desilting district (1), B section desilting district (2) and C section desilting district (3) promptly, water inlet (4) are connected with A section desilting district (1), C section desilting district (3) are located the both sides of A section desilting district (1) and are connected with delivery port (5), B section desilting district (2) set up between A section desilting district (1) and C section desilting district (3) for rivers are two S type routes that are the symmetry from water inlet (4) to delivery port (5) between.
2. A double desilting basin according to claim 1, characterized in that a flow adjusting plate (6) is provided in at least one of the A-section desilting area (1), the B-section desilting area (2) and the C-section desilting area (3).
3. A double desilting basin according to claim 2, characterized in that the flow adjusting plates (6) are plate-shaped bodies and the flow adjusting plates (6) are arranged alternately and/or side by side and in parallel.
4. A double desilting basin according to claim 2 or 3, characterized in that the angle between the flow regulating plate (6) and the direction of the water flow is 20 ° to 40 °.
5. A double desilting basin according to claim 1, characterized in that a gradual change area (7) is provided between the water inlet (4) and the section a desilting area (1), the gradual change area (7) is formed into a trumpet shape by two symmetrical side slopes (7-1), wherein the end with smaller caliber is connected with the water inlet (4), and the end with larger caliber is connected with the section a desilting area (1).
6. A double desilting basin according to claim 5, characterized in that the side slope (7-1) is arc-shaped, the central angle of the arc-shaped side slope (7-1) being 50 ° to 70 °.
7. A double desilting basin according to claim 5 or 6, characterized in that the tail of the section B desilting area (2) is provided with a constriction (8), the constriction (8) being arranged in correspondence with the slope (7-1) of the gradual change area (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922230945.3U CN211328266U (en) | 2019-12-12 | 2019-12-12 | Dual desilting basin |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922230945.3U CN211328266U (en) | 2019-12-12 | 2019-12-12 | Dual desilting basin |
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| CN211328266U true CN211328266U (en) | 2020-08-25 |
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| CN201922230945.3U Active CN211328266U (en) | 2019-12-12 | 2019-12-12 | Dual desilting basin |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113238030A (en) * | 2021-05-19 | 2021-08-10 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Novel sand settling device |
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2019
- 2019-12-12 CN CN201922230945.3U patent/CN211328266U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113238030A (en) * | 2021-05-19 | 2021-08-10 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Novel sand settling device |
| CN113238030B (en) * | 2021-05-19 | 2024-01-23 | 山东省地质矿产勘查开发局第一地质大队（山东省第一地质矿产勘查院） | Novel sand setting device |
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