CN2040506U - Adjustable measuring weir - Google Patents
Adjustable measuring weir Download PDFInfo
- Publication number
- CN2040506U CN2040506U CN 88200982 CN88200982U CN2040506U CN 2040506 U CN2040506 U CN 2040506U CN 88200982 CN88200982 CN 88200982 CN 88200982 U CN88200982 U CN 88200982U CN 2040506 U CN2040506 U CN 2040506U
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- China
- Prior art keywords
- weir
- water
- adjustable
- measuring
- canal
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Abstract
The utility model relates to an adjustable measuring weir, which is a special water measuring device for measuring the water inlet quantity at the outfall of an irrigation canal. The constructional characteristics of the utility model is that an adjustable measuring weir plate is installed on a fixed weir, and the port of the fixed weir is designed according to the maximal water inlet quantity of the canal. When the water inlet quantity of the canal can not meet the requirement, the quantity of water which passes through the port of the weir is corrected by the adjustable measuring weir plate, making the quantity of water consistent with a water measuring condition, and the contradictory of the special water measuring device which can not fit for the large water inlet quantity amplitude is solved.
Description
The utility model is an adjustable weir.Be to be used for the ad hoc water measure equipment that irrigation canal is measured canal mouth inflow.
The ad hoc water measure equipment of domestic measurement canal mouth inflow is a lot.Weir (comprising weirs such as trapezoidal, rectangle, triangle) Bashel flume, no venturi flume, water gaging nozzle, water gaging sleeve pipe etc. are arranged.More than these ad hoc water measure equipments, in some place, because canal mouth inflow luffing is big, when canal mouth inflow is big, phenomenon takes place seriously to block water.When canal mouth water inlet hour, not meeting the water gaging condition again can't water gaging.Normally adopt current meter to measure to these problems, but instrument cost height, calculation of complex, and need more manpower just can finish again.
The purpose of this utility model will provide a kind of and be suitable under the big situation of canal mouth inflow luffing, and does not influence the ad hoc water measure equipment of canal mouth inflow again.
The utility model is to adopt such structure to solve, what promptly improvement formed on the basis of fixed weir.Former exactly fixed weir still makes fixed weir, and only this fixed weir must be by the maximum inflow of channel.On fixing crest of weir, make two adjustable weir plates then.The inner edge of adjustable weir plate must be with fixedly the weir plate inner edge be parallel.On fixing crest of weir base, install slideway, make the levelling of two adjustable weir plates symmetry on slideway with fixing crest of weir top.So just reach when the canal mouth needs inflow big, water measure equipment does not influence water inlet; When inflow is little when not satisfying water gaging and requiring, aligns adjustable weir plate and reach the water gaging condition and carry out water gaging.Water measure equipments such as this utility model and Bashel flume, no venturi flume, sleeve pipe relatively have cost to hang down 30%-40% in addition.The frost heaving resistant damage capability is strong, the advantage that is easy to promote the use.
Description of drawings:
Figure one is the front elevation drawing of this utility model.
Figure two is the top view of this utility model
Figure three is figure one A-A, B-B sectional drawing.
Figure four is a bottom slideway enlarged drawing.
But now describe in detail with a trapezoidal weir transfer accompanying drawing.Generally make with reference to figure one fixed amount mill weir (1) of steel concrete, also can be cylinder iron or steel plate make, be installed on the channel.Fixedly the crest of weir of weir plate (2) will be determined by the maximum inflow of channel.Fixedly the side slope of crest of weir (3) coefficient is 0.25.Adjustable weir plate (4) two block specifications that are installed on the fixing crest of weir must be identical, must syummetrical adjustments, and its master control width must meet minimum inflow water gaging condition.The track (6) that the preceding side slope (5) of adjustable weir plate is slided with reference to the adjustable weir plate of figure three section lower support, along extend in two side channels always, development length can be slightly larger than adjustable weir plate bottom width the end of along.And fix 0.025 * 0.025 meter angle steel (7) in adjustable weir plate bottom and place the back rest (8) at the top and 14 yuan of steel of φ (9) are set on the back rest as sliding muscle, to reduce the force of sliding friction of adjustable weir plate under flowing pressure.And front-axle beam (10) is set leans forward to retrain adjustable weir plate.Cover plate (11) is set on the top of front and rear beam protects adjustable weir plate.
Be provided with dual-side groove (12) with reference to accompanying drawing three B-B, to make the flexible loose slot of adjustable weir plate.
Poor with reference to figure one for accurate observation water levels of upstream and downstream, in the fixing upstream and downstream of weir plate, be provided with fixing weir plate mouth bottom be 0 platform that fixes (13) be provided with 10 centimetres of φ a conduit peschel (14) this manage lower end and shut.Downside is opened one in 5 millimeters holes, with outer water surface UNICOM.Be placed on observed stage on the platform when this is effective, the time spent does not take away, in case destroyed by the people.
Its levelling measure (15) has multiple the utility model to align with movable winch.When measuring canal mouth inflow, check at first whether water levels of upstream and downstream meets the water gaging condition of weir, if be not inconsistent and promptly align adjustable weir plate, make it to reach requirement, after treating that water level steadily, swimming is poor up and down in observation again, looks into the undercurrent table according to the water-head and the crest of weir depth of water and promptly gets one meter inflow that the weir is wide, taking advantage of actual weir wide again, promptly is the canal mouth inflow that records.
But more than be to be example with trapezoidal weir transfer, if also will work as check gate usefulness except water gaging, but can make the rectangle weir transfer, its practice has only not together, exactly weir plate has been changed into rectangle just, but as done the triangle weir transfer, only the weir plate slope coefficient changed into 1 just.
Claims (1)
1, a kind of adjustable weir is characterized in that the adjustable weir plate upper and lower side in both sides is equipped with slideway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88200982 CN2040506U (en) | 1988-01-26 | 1988-01-26 | Adjustable measuring weir |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88200982 CN2040506U (en) | 1988-01-26 | 1988-01-26 | Adjustable measuring weir |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2040506U true CN2040506U (en) | 1989-07-05 |
Family
ID=4836290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88200982 Pending CN2040506U (en) | 1988-01-26 | 1988-01-26 | Adjustable measuring weir |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2040506U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921019A (en) * | 2010-03-26 | 2010-12-22 | 北京城市排水集团有限责任公司 | Sewage treatment plant inflow weir-adjustable control device and process |
| CN102870655A (en) * | 2012-10-15 | 2013-01-16 | 河海大学 | Low-water level flow monitoring system for farmland irrigation |
| CN103968896A (en) * | 2014-05-23 | 2014-08-06 | 黑龙江省科学院火山与矿泉研究所 | Small-flow outcrop spring flow measuring device |
| CN104457859A (en) * | 2014-11-12 | 2015-03-25 | 中国电建集团贵阳勘测设计研究院有限公司 | Method for changing shape of water passing section of measuring weir and measuring weir structure |
| CN105403269A (en) * | 2015-12-03 | 2016-03-16 | 中国科学院测量与地球物理研究所 | Adjustable surface runoff monitoring device |
| CN108411863A (en) * | 2018-03-06 | 2018-08-17 | 河北海王水工机械有限公司 | A kind of triangle weir gate |
| CN108534846A (en) * | 2018-03-14 | 2018-09-14 | 中国农业大学 | A kind of drawing type portable weir body and flow-measuring method |
| CN110986892A (en) * | 2019-10-16 | 2020-04-10 | 西北农林科技大学 | Runoff flow velocity and flow monitoring method, monitoring device and monitoring system |
-
1988
- 1988-01-26 CN CN 88200982 patent/CN2040506U/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101921019A (en) * | 2010-03-26 | 2010-12-22 | 北京城市排水集团有限责任公司 | Sewage treatment plant inflow weir-adjustable control device and process |
| CN101921019B (en) * | 2010-03-26 | 2012-07-04 | 北京城市排水集团有限责任公司 | Sewage treatment plant inflow weir-adjustable control device and process |
| CN102870655A (en) * | 2012-10-15 | 2013-01-16 | 河海大学 | Low-water level flow monitoring system for farmland irrigation |
| CN103968896A (en) * | 2014-05-23 | 2014-08-06 | 黑龙江省科学院火山与矿泉研究所 | Small-flow outcrop spring flow measuring device |
| CN104457859A (en) * | 2014-11-12 | 2015-03-25 | 中国电建集团贵阳勘测设计研究院有限公司 | Method for changing shape of water passing section of measuring weir and measuring weir structure |
| CN105403269A (en) * | 2015-12-03 | 2016-03-16 | 中国科学院测量与地球物理研究所 | Adjustable surface runoff monitoring device |
| CN105403269B (en) * | 2015-12-03 | 2018-10-30 | 中国科学院测量与地球物理研究所 | Adjustable rainwash monitoring device |
| CN108411863A (en) * | 2018-03-06 | 2018-08-17 | 河北海王水工机械有限公司 | A kind of triangle weir gate |
| CN108534846A (en) * | 2018-03-14 | 2018-09-14 | 中国农业大学 | A kind of drawing type portable weir body and flow-measuring method |
| CN110986892A (en) * | 2019-10-16 | 2020-04-10 | 西北农林科技大学 | Runoff flow velocity and flow monitoring method, monitoring device and monitoring system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned | ||
| WD01 | Invention patent application deemed withdrawn after publication |