CN201596384U - Farmland low-pressure pipeline forebay self-draining sand trap device - Google Patents
Farmland low-pressure pipeline forebay self-draining sand trap device Download PDFInfo
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- CN201596384U CN201596384U CN2009200343364U CN200920034336U CN201596384U CN 201596384 U CN201596384 U CN 201596384U CN 2009200343364 U CN2009200343364 U CN 2009200343364U CN 200920034336 U CN200920034336 U CN 200920034336U CN 201596384 U CN201596384 U CN 201596384U
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- settling pit
- active section
- self arrangement
- slope
- sand
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Abstract
The utility model discloses a farmland low-pressure pipeline forebay self-draining sand trap device, which comprises a sand discharging device, and a transition section (2), a sand trap working section (3) and a water collection area (4) which are sequentially connected along a flow direction of a diversion canal section (1). The device is characterized in that the transition section (2) and the diversion canal section (1) are arranged on a same plane while width of the transition section (2) is larger than that of the diversion canal section (1), the sand trap working section (3) is formed by connecting three slopes (5), (6), (7) which are lowered in sequence, the lower portion of the side wall of the water collection area (4) is provided with an outlet, and the sand discharging device is mounted inside an water outlet of the slope (7). The sand trap device reduces flow speed in a trap by increasing discharge cross section area, evidently reduces sediment-carrying capacity of entrance flow, and sediment is gradually settled in the sand trap, thereby finally realizing the purpose of water-sand separation.
Description
Technical field
The utility model relates to a kind of settling pit, low pressure pipeline forebay, particularly a kind of farmland self arrangement settling pit device.
Background technology
Low pressure pipeline forebay self arrangement settling pit is that sediment of irrigation area problem is a starting point under the water-saving irrigation pattern to solve.As everyone knows, in the last few years, in the face of the shortage of water resources problem that is on the rise, the construction of a water-saving society is paid attention to by governments at all levels, has obtained fast development especially based on the conventional water-saving irrigation pattern of canal irrigation and irrigation facility with based on the high-efficiency water-saving of low-pressure pipe irrigation, the microspray irrigation pattern of irrigating.In addition, particularly to draw yellow sediment of irrigation area problem serious for sediment of irrigation area problem.For fundamentally solving the silt disaster problem in irrigated area, realize the sustainable development in irrigated area, the research of husky Allocation Theory of irrigated area water and method becomes very urgent and necessary.Scholars such as Cao Wenhong, Jiang Ruqin, Dai Qing propose, the silt alluvial should be changed at the undesirable condition of " point " (head works settling pit) and " line " (water delivery trunk canal channel is along the line) for the processing of the sediment of irrigation area silt is deposited to " face " (branch canal, field), this viewpoint is generally accepted by the industry peer, has only so and can solve the silt disaster problem in irrigated area under the prerequisite that guarantees irrigated area canal system transmission ﹠ distribution water function.For realizing this target of irrigated area water sand configuration, carry the key technical problem that will become water husky configuration in irrigated area with the husky technical research of the terminal mattress sinking of supporting with it canal system than the long distance of high sediment concentration muddy water.Because the use of efficient water-saving irrigation technique such as field low pressure pipeline and microspray irrigation, the higher muddy water of silt content is transported to the regulation and control of silt behind the field and handles unavoidable, the large-scale settling pit that traditional floor space is very big can't be used, the settling pit Study on Technology will to miniaturization and certainly the direction of rowization develop.Small-sized is a kind of feasible silt dispersion treatment measure from arranging settling pit.Small-sized research of arranging settling pit certainly is the deep discussion to the settling pit technology, also provides theoretical foundation for the long of muddy water apart from conveying and the technical research of corresponding supporting dispersion mattress sinking sand simultaneously.
Summary of the invention
At above-mentioned problems of the prior art and defective, the purpose of this utility model is to provide a kind of simple in structure, low pressure pipeline forebay, farmland self arrangement settling pit device that desilting is effective.
The technical scheme that realizes the foregoing invention purpose is: low pressure pipeline forebay, a kind of farmland self arrangement settling pit device, comprise sand discharge apparatus and the transition that connects successively along flume section water (flow) direction, settling pit active section and gathering ground, described transition and the flume section of drawing is in same plane and its width width greater than the flume section, described settling pit active section by three sections slope I, II, III that reduce successively, connect to form; Described gathering ground, the sidewall lower curtate be provided with outlet; Described sand discharge apparatus is installed in the delivery port of slope III.
The gradient of described slope I is greater than the gradient of slope II.
The length of described slope II is greater than the length of slope I.
Described sand discharge apparatus is by the funnel that is installed in the III delivery port of slope, the pipeline that has valve that is connected with its lower end, be fixed in the water channel side wall screw rod and with the rotating disk composition that conical plug is connected with the upper end that is connected of its lower end; The centre bore of described conical plug and funnel matches.
The height of the resistance wall of sand between described settling pit active section and the gathering ground is lower than the horizontal plane of transition.
The middle part of described settling pit active section also is provided with adjusting-flow board.
The operation principle of low pressure pipeline forebay, the utility model farmland self arrangement settling pit device:
In delivery period, arrange settling pit certainly and be in the desilting running status, after muddy water enters settling pit, along with enlarging along journey of flow section, flow velocity reduces along journey, and coarse grain silt precipitates gradually, chamber, pond front end forms alluvial gradually, and slowly advances to the rear end, pond, and it is full to become silted up up to debris storage capacity.When the alluvial degree of depth in the settling pit arrives the design alluvial degree of depth, in time close its inlet gate and stop the desilting operation, and open scouring sluice and arrange sand.Utilize the indoor water level in pond to descend general who has surrendered's part shoal materials to discharge outside the pond fast.By the time when the former water storage in chamber, pond is about to emptying, open inlet gate, move with the sand surfing flow.Current form high flow rate and have strong scouring capability on the abrupt slope, the silt of pond front end is flushed to the end, pond, and then silt is discharged from scouring sluice.When the chamber, pond is fully washed, when silt is close to discharge, close scouring sluice, adjust inlet gate, resume water supply, reenter the silt running status.
Be by strengthening discharge section area, to reduce flow rate of water flow in the pond, make into that the sediment carrying capacity of pond current significantly reduces, silt precipitation gradually in settling pit finally realizes the purpose that the husky part of water is separated.
Compare with existing technology, self arrangement settling pit device of the present utility model has the following advantages:
(1) the self arrangement settling pit silt of canal system that is mainly used in the irrigated area is handled, and as a kind of measure of dispersion treatment silt, is suitable on the branch canal or lateral canal of canal system, also can build the water source of some water-saving irrigation systems in before.
(2) when when arranging that sedimentation is to certain depth (design deposition thickness) in the settling pit, open scouring sluice, rely on the water yield accumulated in the pond and the design sand surfing flow in the approach channel to discharge outside the pond voluntarily silt in the pond or the low lying areas, downstream jointly then, thereby realize " row certainly " of silt.
(3) in configuration aspects, arrange settling pit certainly and compared some improvement with traditional settling pit, add adjusting-flow board; For satisfying the sand surfing requirement, it is steeper relatively to arrange the settling pit base slope certainly.Sand surfing process from row's settling pit is to utilize the torrential wash principle, and it is steeper that current enter in behind the active section because the pond base slope, so can form the high-velocity flow with very strong scouring capability.When water was moving along the pond underflow, longitudinal gradient was greater than critical slope at the bottom of the pond, and current keep the torrent state always, form to wash away along journey, silt can be gone out outside the pond.
Description of drawings
Fig. 1 is the plan structure figure of self arrangement settling pit device of the present utility model.
Fig. 2 is the sectional structure chart of self arrangement settling pit device of the present utility model.
Fig. 3 is the main TV structure figure of the sand discharge apparatus of self arrangement settling pit device of the present utility model.
The specific embodiment
The drawings and specific embodiments of the self arrangement settling pit device that provides below in conjunction with the inventor further specify the beneficial effects of the utility model.
Plan structure figure and sectional structure chart that Fig. 1 and Fig. 2 have provided self arrangement settling pit device of the present utility model respectively come.Low pressure pipeline forebay, a kind of farmland self arrangement settling pit device, comprise sand discharge apparatus and the transition 2 that connects successively along flume section 1 water (flow) direction, settling pit active section 3 and gathering ground 4, it is characterized in that: described transition 2 and the flume section 1 of drawing is in same plane and its width width greater than flume section 1, and described settling pit active section 3 is connected to form by three sections slopes 5,6,7 that reduce successively; The sidewall lower curtate of described gathering ground 4 is provided with outlet; Described sand discharge apparatus is installed in 7 delivery ports of slope.
The gradient on described slope 5 is greater than the gradient on slope 6.
The length on described slope 6 is greater than the length on slope 5.
Described sand discharge apparatus is by the funnel 8 that is installed in 7 delivery ports of slope, the pipeline that has valve 9 that is connected with its lower end, be fixed in the water channel side wall screw rod 10 and with rotating disk 12 compositions that conical plug 11 is connected with the upper end that are connected of its lower end, described conical plug 11 matches with the centre bore of funnel 8, referring to Fig. 3.
The height of the resistance wall of sand 13 between described settling pit active section 3 and the gathering ground 4 is lower than the horizontal plane of transition.
The middle part of described settling pit active section 3 is provided with adjusting-flow board 14.
Claims (17)
1. low pressure pipeline forebay, farmland self arrangement settling pit device, comprise sand discharge apparatus and the transition (2) that connects successively along flume section (1) water (flow) direction, settling pit active section (3) and gathering ground (4), it is characterized in that: described transition (2) and the flume section (1) of drawing is in same plane and its width width greater than flume section (1), and described settling pit active section (3) is connected to form by three sections slope I (5), slope II (6), slope III (7) that reduce successively; The sidewall lower curtate of described gathering ground (4) is provided with outlet; Described sand discharge apparatus is installed in slope III (7) delivery port.
2. self arrangement settling pit device according to claim 1 is characterized in that: the gradient of described slope I (5) is greater than the gradient of slope II (6).
3. self arrangement settling pit device according to claim 1 and 2 is characterized in that: the length of described slope II (6) is greater than the length of slope I (5).
4. any self arrangement settling pit device according to claim 1 and 2, it is characterized in that: described sand discharge apparatus is by the funnel (8) that is installed in slope III (7) delivery port, the pipeline that has valve (9) that is connected with its lower end, be fixed in the water channel side wall screw rod (10) and with rotating disk (12) composition that conical plug (11) is connected with the upper end that is connected of its lower end, the centre bore of described conical plug (11) and funnel (8) matches.
5. any self arrangement settling pit device according to claim 3, it is characterized in that: described sand discharge apparatus is by the funnel (8) that is installed in slope III (7) delivery port, the pipeline that has valve (9) that is connected with its lower end, be fixed in the water channel side wall screw rod (10) and with rotating disk (12) composition that conical plug (11) is connected with the upper end that is connected of its lower end, the centre bore of described conical plug (11) and funnel (8) matches.
6. any self arrangement settling pit device according to claim 1 and 2 is characterized in that: the height of the resistance wall of sand (13) between described settling pit active section (3) and gathering ground (4) is lower than the horizontal plane of transition.
7. any self arrangement settling pit device according to claim 3 is characterized in that: the height of the resistance wall of sand (13) between described settling pit active section (3) and gathering ground (4) is lower than the horizontal plane of transition.
8. any self arrangement settling pit device according to claim 4 is characterized in that: the height of the resistance wall of sand (13) between described settling pit active section (3) and gathering ground (4) is lower than the horizontal plane of transition.
9. any self arrangement settling pit device according to claim 5 is characterized in that: the height of the resistance wall of sand (13) between described settling pit active section (3) and gathering ground (4) is lower than the horizontal plane of transition.
10. any self arrangement settling pit device according to claim 1 and 2, it is characterized in that: the middle part of described settling pit active section (3) is provided with adjusting-flow board (14).
11. any self arrangement settling pit device according to claim 3, it is characterized in that: the middle part of described settling pit active section (3) is provided with adjusting-flow board (14).
12. any self arrangement settling pit device according to claim 4, it is characterized in that: the middle part of described settling pit active section (3) is provided with adjusting-flow board (14).
13. any self arrangement settling pit device according to claim 5, it is characterized in that: the middle part of described settling pit active section (3) is provided with adjusting-flow board (14).
14. any self arrangement settling pit device according to claim 6, it is characterized in that: the middle part of described settling pit active section (3) is provided with adjusting-flow board (14).
17. any self arrangement settling pit device according to claim 7, it is characterized in that: the middle part of described settling pit active section (3) is provided with adjusting-flow board (14).
18. any self arrangement settling pit device according to claim 8, it is characterized in that: the middle part of described settling pit active section (3) is provided with adjusting-flow board (14).
19. any self arrangement settling pit device according to claim 9, it is characterized in that: the middle part of described settling pit active section (3) is provided with adjusting-flow board (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200343364U CN201596384U (en) | 2009-08-27 | 2009-08-27 | Farmland low-pressure pipeline forebay self-draining sand trap device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200343364U CN201596384U (en) | 2009-08-27 | 2009-08-27 | Farmland low-pressure pipeline forebay self-draining sand trap device |
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| Publication Number | Publication Date |
|---|---|
| CN201596384U true CN201596384U (en) | 2010-10-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009200343364U Expired - Fee Related CN201596384U (en) | 2009-08-27 | 2009-08-27 | Farmland low-pressure pipeline forebay self-draining sand trap device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354545A (en) * | 2019-08-13 | 2019-10-22 | 中国电建集团北京勘测设计研究院有限公司 | A kind of compound settling pit for severe cold area |
| CN110478977A (en) * | 2019-09-12 | 2019-11-22 | 济南大学 | A kind of spiral flow is from sand draining type desilting filtering ponds |
| CN110478978A (en) * | 2019-09-12 | 2019-11-22 | 济南大学 | It is a kind of round from sand draining type gravity desilting filtering ponds |
| CN112442970A (en) * | 2020-11-30 | 2021-03-05 | 武汉大学 | Multifunctional ecological water diversion device |
| CN112982312A (en) * | 2021-03-18 | 2021-06-18 | 河南省水利勘测设计研究有限公司 | Method for removing sediment by utilizing U-shaped aqueduct |
| CN114920370A (en) * | 2022-06-23 | 2022-08-19 | 南通安中水务科技有限公司 | River channel silt prevention aeration device and method |
-
2009
- 2009-08-27 CN CN2009200343364U patent/CN201596384U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110354545A (en) * | 2019-08-13 | 2019-10-22 | 中国电建集团北京勘测设计研究院有限公司 | A kind of compound settling pit for severe cold area |
| CN110478977A (en) * | 2019-09-12 | 2019-11-22 | 济南大学 | A kind of spiral flow is from sand draining type desilting filtering ponds |
| CN110478978A (en) * | 2019-09-12 | 2019-11-22 | 济南大学 | It is a kind of round from sand draining type gravity desilting filtering ponds |
| CN112442970A (en) * | 2020-11-30 | 2021-03-05 | 武汉大学 | Multifunctional ecological water diversion device |
| CN112442970B (en) * | 2020-11-30 | 2022-03-15 | 武汉大学 | Multifunctional ecological water diversion device |
| CN112982312A (en) * | 2021-03-18 | 2021-06-18 | 河南省水利勘测设计研究有限公司 | Method for removing sediment by utilizing U-shaped aqueduct |
| CN112982312B (en) * | 2021-03-18 | 2022-07-01 | 河南省水利勘测设计研究有限公司 | Method for removing sediment by utilizing U-shaped aqueduct |
| CN114920370A (en) * | 2022-06-23 | 2022-08-19 | 南通安中水务科技有限公司 | River channel silt prevention aeration device and method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101006 Termination date: 20110827 |