CN208420109U - A kind of triangular-notch weir device measuring sediment concentration and runoff water level - Google Patents
A kind of triangular-notch weir device measuring sediment concentration and runoff water level Download PDFInfo
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- CN208420109U CN208420109U CN201821129551.8U CN201821129551U CN208420109U CN 208420109 U CN208420109 U CN 208420109U CN 201821129551 U CN201821129551 U CN 201821129551U CN 208420109 U CN208420109 U CN 208420109U
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Abstract
The utility model relates to a kind of measurement sediment concentration and the triangular-notch weir devices of runoff water level, weir including open top, weir includes left plate, right side plate, front side board, back side panel and bottom plate, triangle crest of weir is provided in the middle part of back side panel, weir is fixedly provided with L shape partition, partition, left plate and front side board are surrounded by rectangle level measuring area, level measuring area is fixedly provided with pressure water-level sensor, it is provided with curved surface guiding device between partition and right side plate, photo-electric sediment concentration measuring sensor is installed with immediately below curved surface guiding device；The top of weir is installed with capping, the water inlet being provided with right above curved surface guiding device on front side of capping.The triangular-notch weir device of the measurement sediment concentration and runoff water level can measure sediment concentration and runoff water level in simulation artificial rainfall test, and measurement effect is good, easy to operate, save a large amount of artificial observations, detection time.
Description
Technical field
The utility model relates to a kind of measurement sediment concentration and the triangular-notch weir devices of runoff water level, belong to measuring technique neck
Domain.
Background technique
Triangular-notch weir device is a kind of device for being capable of measuring runoff water level.It is widely used in small flow diameter flow measuring system
In.Small flow diameter flow measuring system is a kind of device for measuring single water level parameters, and when generating runoff, water flow flows into triangle
Weir goes out water level by artificial observation, can calculate run-off according to triangular-notch weir formula.
But measurement soil runoff and sediment amount is usually to use container to collect manually, then produced by oven drying method at present
Sha Liang can not directly measure sediment concentration, and artificial observation, detection need to waste plenty of time and manpower.
Utility model content
The utility model in view of the deficienciess of the prior art, provide it is a kind of measurement sediment concentration and runoff water level three
Angle weir device, specific technical solution are as follows:
A kind of triangular-notch weir device measuring sediment concentration and runoff water level, the weir including open top, the amount water
Weir includes left plate, right side plate, front side board, back side panel and bottom plate, is provided with triangle crest of weir in the middle part of the back side panel, and described three
Angle crest of weir is isosceles triangle shape, and the weir is fixedly provided with L shape partition, and the partition, left plate and front side board enclose
At there is rectangle level measuring area, gap, the level measuring area are provided between the lower end of the partition and the upper surface of bottom plate
Be fixedly provided with pressure water-level sensor, be installed with waterproof cover right above the level measuring area；The partition and right side
It is provided with curved surface guiding device between plate, photo-electric sediment concentration measuring sensing is installed with immediately below the curved surface guiding device
Device；The top of the weir is installed with capping, be provided on front side of the capping right above curved surface guiding device into
The mouth of a river.
As an improvement of the above technical solution, the curved surface guiding device includes two symmetrical starting staves, institute
The front end for stating starting stave is fixedly connected with front side board, and the baffle that cross section is arc, institute are provided between two starting staves
It states and is provided with interval between baffle and front side board, the baffle, two starting staves and front side board are surrounded by intake chamber；Positioned at a left side
It is provided with the first inclined plate turned down to the right below the starting stave of side, is provided with to the left below the starting stave on right side
Second inclined plate of fold, the angle between first inclined plate and the second inclined plate is obtuse angle, first inclined plate and the second inclined plate
Between be provided with the first passage being connected with intake chamber；There are two the second risers for the lower section setting of the first passage, are located at
The upper end of second riser in left side is fixedly connected with the lower end of the first inclined plate, oblique positioned at the upper end of second riser on right side and second
The lower end of plate is fixedly connected, and the second channel being connected with first passage, the photo-electric are provided between two the second risers
The inside of second channel is arranged in sediment concentration measuring sensor.
As an improvement of the above technical solution, the lower end of second riser is provided with flange, and the flange setting is the
The outside in two channels.
As an improvement of the above technical solution, the flange is vertical with the second riser.
As an improvement of the above technical solution, the spacing between the lower end of the partition and the upper surface of bottom plate be equal to 10 ±
2mm。
As an improvement of the above technical solution, the apex angle of the triangle crest of weir is equal to 30 °.
As an improvement of the above technical solution, between being provided between the apex angle of the triangle crest of weir and the lower surface of bottom plate
Away from the spacing between the apex angle of the triangle crest of weir and the lower surface of bottom plate is equal to 10 ± 2mm.
It is described in the utility model measurement sediment concentration and runoff water level triangular-notch weir device simulation artificial rainfall test in,
Sediment concentration and runoff water level can be measured, measurement effect is good, and it is easy to operate, save a large amount of artificial observations, detection time.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the triangular-notch weir device of measurement sediment concentration described in the utility model and runoff water level；
Fig. 2 does not install curved surface water conservancy diversion dress for the triangular-notch weir device of measurement sediment concentration described in the utility model and runoff water level
Schematic diagram (overlooking state) when setting；
Fig. 3 is the schematic internal view of the triangular-notch weir device of measurement sediment concentration described in the utility model and runoff water level；
Fig. 4 is the distribution schematic diagram of partition described in the utility model and curved surface guiding device inside weir；
Fig. 5 is the structural schematic diagram (side view state) of curved surface guiding device described in the utility model；
Fig. 6 is the structural schematic diagram of intake chamber described in the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
For front, back, left, right, up, down described herein is both with respect to Fig. 1.
As shown in figures 1-4, the triangular-notch weir device of the measurement sediment concentration and runoff water level, the amount including open top
Mill weir 10, the weir 10 includes left plate 101, right side plate 102, front side board 103, back side panel 104 and bottom plate 105, described
Left plate 101, right side plate 102, front side board 103, back side panel 104 and bottom plate 105 surround groove-like structure；The back side panel 104
Middle part is provided with triangle crest of weir 11, and the triangle crest of weir 11 is isosceles triangle shape, the apex angle of the triangle crest of weir 11 downward, institute
The apex angle for stating triangle crest of weir 11 is equal to 30 °, between being provided between the apex angle of the triangle crest of weir 11 and the lower surface of bottom plate 105
Away from；The weir 10 is fixedly provided with L shape partition 40, and the partition 40, left plate 101 and front side board 103 are surrounded by square
Shape level measuring area 50 is provided with gap, the level measuring area between the lower end of the partition 40 and the upper surface of bottom plate 105
50 are fixedly provided with pressure water-level sensor 60, and the surface in the level measuring area 50 is installed with waterproof cover 30；It is described every
It is provided with curved surface guiding device between plate 40 and right side plate 102, is installed with photo-electric immediately below the curved surface guiding device and contains
Sand measures quantity sensor 80；The top of the weir 10 is installed with capping 20, and the front side of the capping 20, which is provided with, is located at song
Water inlet 21 right above the guiding device of face.
Further, as illustrated in figures 3-6, the curved surface guiding device includes two symmetrical starting staves 71, institute
The front end for stating starting stave 71 is fixedly connected with front side board 103, and it is arc that cross section is provided between two starting staves 71
Baffle 74 is provided with interval, the baffle 74, two starting staves 71 and front side boards between the baffle 74 and front side board 103
103 are surrounded by intake chamber 76；It is provided with the first inclined plate 721 turned down to the right positioned at the lower section of the starting stave 71 in left side, is located at
The lower section of the starting stave 71 on right side is provided with the second inclined plate 722 turned down to the left, and the first inclined plate 721 is in the second inclined plate 722
Axially symmetric structure, the angle between first inclined plate 721 and the second inclined plate 722 is obtuse angle, first inclined plate 721 and second
The first passage 77 being connected with intake chamber 76 is provided between inclined plate 722；There are two the lower section settings of the first passage 77
Second riser 73, the upper end positioned at second riser 73 in left side are fixedly connected with the lower end of the first inclined plate 721, positioned at the of right side
The upper end of two risers 73 is fixedly connected with the lower end of the second inclined plate 722, is provided between two the second risers 73 and first passage
The inside of second channel 78 is arranged in 77 second channels 78 being connected, the photo-electric sediment concentration measuring sensor 80.
Pressure water-level sensor 60 is according to pressure and the proportional hydrostatic pressure principle of the depth of water, with pressure cell
The water level juice for making sensor, when the fixed a certain measuring point under water of sensor, the above water column pressure height of the measuring point adds the point
Elevation can measure water level indirectly.It is raw that Xi'an Miao Sen Electronic Science and Technology Co., Ltd. can be selected in the pressure water-level sensor 60
The model MSS-PW-500 pressure water-level sensor of production, it is this field routine techniques that pressure water-level sensor 60, which measures water level,.
Attenuation law of the photo-electric sediment concentration measuring sensor 80 using light in the different non-uniform dielectric of optical property,
The light intensity measured through the silt water of certain distance is carried out by the light intensity before non-uniform dielectric with the silt water of known concentration
Calibration, is made photo-electric silt content sensor 80；The production of Xi'an Miao Sen Electronic Science and Technology Co., Ltd. can be selected in the sensor 80
Model MSS-S-100 photo-electric sediment concentration measuring sensor, utilize photo-electric sediment concentration measuring sensor 80 measure water
Silt content is this field routine techniques in stream.
Spacing between the apex angle of the triangle crest of weir 11 and the lower surface of bottom plate 105 is equal to 10 ± 2mm, this can be prevented
Small stream is directly flowed out from the vertex of triangle crest of weir 11, to avoid not measuring runoff water level.
The effect of waterproof cover 30 is that artificially-simulated rainfall rainwater is prevented to be splashed into level measuring area 50, and it is anti-for covering 20 effect
Only artificially-simulated rainfall rainwater is splashed into transition region.
Partition 40 has the function of alleviating water level fluctuation.If being not provided with partition 40, water flow is flowed down from curved surface guiding device,
Water level fluctuation can be bigger, to influence to measure waterlevel data, causes data inaccurate.
In the inside of weir 10, curved surface guiding device region is measurement sediment concentration area；In weir 10
To remove level measuring area 50 and measure the remaining area in sediment concentration area be transition region for inside, transition region is located at capping 20
Underface.Spacing between the lower end of the partition 40 and the upper surface of bottom plate 105 is equal to 10 ± 2mm, this makes level measuring
Linker structure is constituted between area 50 and measurement sediment concentration area and transition region, to not influence sensed water level.
When simulating artificial rainfall test, when cell starts to produce stream, runoff yield falls on song from water inlet 21 by water pipe 90
The top of face guiding device, under the action of curved surface guiding device, water velocity is reduced, and is sensed by photo-electric sediment concentration measuring
Device 80 can measure instantaneous sediment concentration, and runoff yield enters the inside of weir 10, pass through partition 40 and 105 upper surface of bottom plate
Between gap enter have level measuring area 50 existing for pressure water-level sensor 60, pass through level measuring area 50 measure weir
Water level inside 10；Finally, water flow is flowed out from triangle crest of weir 11.
The curved surface guiding device can preferably import water flow where measurement photo-electric sediment concentration measuring sensor 80
In second channel 78, so that the measurement of silt content is avoided by the interference in level measuring area 50 and transition region region water flow, drop
Low measurement error.It is first fallen in intake chamber 76 from from water inlet 21 toward dirty muddy water, it is then logical by first passage 77, second
Road 78, muddy water can measure sediment concentration by photo-electric sediment concentration measuring sensor 80 while entering second channel 78.It is described
Curved surface guiding device is not only able to provide detection environment for photo-electric sediment concentration measuring sensor 80, but also avoids by adjacent region
Domain interference.Meanwhile cross section is the baffle 74 of arc, enables the muddy water fallen in intake chamber 76 successfully to flow to first logical
Road 77, avoids residual silt；First passage 77 between first inclined plate 721 and the second inclined plate 722 will not generate residual silt；
Due to that will not generate residual silt in curved surface guiding device, the defect that measurement error improves caused by avoiding because of residual silt is produced
It is raw.
Further, the lower end of second riser 73 is provided with flange 75, and the flange 75 is arranged in second channel 78
Outside；The flange 75 is vertical with the second riser 73.After being fixedly connected between flange 75 and bottom plate 105, two the second risers
Spacing between 73 is not susceptible to change, so that the testing result for facilitating photo-electric sediment concentration measuring sensor 80 keeps one
It causes.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (7)
1. the triangular-notch weir device of a kind of measurement sediment concentration and runoff water level, the weir (10) including open top, the amount
Mill weir (10) includes left plate (101), right side plate (102), front side board (103), back side panel (104) and bottom plate (105), after described
It is provided in the middle part of side plate (104) triangle crest of weir (11), the triangle crest of weir (11) is isosceles triangle shape, it is characterised in that:
The weir (10) is fixedly provided with L shape partition (40), and the partition (40), left plate (101) and front side board (103) enclose
At there is rectangle level measuring area (50), it is provided with gap between the lower end of the partition (40) and the upper surface of bottom plate (105), institute
Being fixedly provided with pressure water-level sensor (60) for level measuring area (50) is stated, the surface of the level measuring area (50) is fixed
There are waterproof cover (30)；Curved surface guiding device, the curved surface guiding device are provided between the partition (40) and right side plate (102)
Underface be installed with photo-electric sediment concentration measuring sensor (80)；The top of the weir (10) is installed with capping (20),
The water inlet (21) being provided on front side of the capping (20) right above curved surface guiding device.
2. the triangular-notch weir device of a kind of measurement sediment concentration according to claim 1 and runoff water level, it is characterised in that: institute
Stating curved surface guiding device includes two symmetrical starting staves (71), the front end of the starting stave (71) and front side board
(103) be fixedly connected, be provided between two starting staves (71) cross section be arc baffle (74), the baffle (74) with
Be provided with interval between front side board (103), the baffle (74), two starting staves (71) and front side board (103) be surrounded by into
Sink (76)；The first inclined plate (721) turned down to the right is provided with below the starting stave (71) in left side, positioned at right side
The second inclined plate (722) turned down to the left, first inclined plate (721) and the second inclined plate are provided with below starting stave (71)
(722) angle between is obtuse angle, is provided between first inclined plate (721) and the second inclined plate (722) and intake chamber (76)
The first passage (77) being connected；There are two the second riser (73) for the lower section setting of the first passage (77), positioned at left side
The upper end of second riser (73) is fixedly connected with the lower end of the first inclined plate (721), positioned at the upper end of second riser (73) on right side
It is fixedly connected with the lower end of the second inclined plate (722), is provided between two the second risers (73) and is connected with first passage (77)
Second channel (78), inside of the photo-electric sediment concentration measuring sensor (80) setting in second channel (78).
3. the triangular-notch weir device of a kind of measurement sediment concentration according to claim 2 and runoff water level, it is characterised in that: institute
The lower end for stating the second riser (73) is provided with flange (75), outside of flange (75) setting in second channel (78).
4. the triangular-notch weir device of a kind of measurement sediment concentration according to claim 3 and runoff water level, it is characterised in that: institute
It is vertical with the second riser (73) to state flange (75).
5. the triangular-notch weir device of a kind of measurement sediment concentration according to claim 1 and runoff water level, it is characterised in that: institute
The spacing stated between the lower end of partition (40) and the upper surface of bottom plate (105) is equal to 10 ± 2mm.
6. the triangular-notch weir device of a kind of measurement sediment concentration according to claim 1 and runoff water level, it is characterised in that: institute
The apex angle for stating triangle crest of weir (11) is equal to 30 °.
7. the triangular-notch weir device of a kind of measurement sediment concentration according to claim 1 and runoff water level, it is characterised in that: institute
It states and is provided with spacing between the apex angle of triangle crest of weir (11) and the lower surface of bottom plate (105), the apex angle of the triangle crest of weir (11)
Spacing between the lower surface of bottom plate (105) is equal to 10 ± 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821129551.8U CN208420109U (en) | 2018-07-16 | 2018-07-16 | A kind of triangular-notch weir device measuring sediment concentration and runoff water level |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821129551.8U CN208420109U (en) | 2018-07-16 | 2018-07-16 | A kind of triangular-notch weir device measuring sediment concentration and runoff water level |
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| CN208420109U true CN208420109U (en) | 2019-01-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295220A (en) * | 2021-05-21 | 2021-08-24 | 南京元和安全科技有限公司 | Device and method for measuring sand content of water measuring weir |
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2018
- 2018-07-16 CN CN201821129551.8U patent/CN208420109U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113295220A (en) * | 2021-05-21 | 2021-08-24 | 南京元和安全科技有限公司 | Device and method for measuring sand content of water measuring weir |
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