CN207237384U - A kind of sedimentation basin - Google Patents
A kind of sedimentation basin Download PDFInfo
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- CN207237384U CN207237384U CN201721081750.1U CN201721081750U CN207237384U CN 207237384 U CN207237384 U CN 207237384U CN 201721081750 U CN201721081750 U CN 201721081750U CN 207237384 U CN207237384 U CN 207237384U
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- sedimentation basin
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Abstract
The utility model discloses a kind of sedimentation basin.Its key points of the technical solution are that including exterior wall, water inlet, water outlet and the triangular-notch weir set in water outlet, the triangular-notch weir is that the equilateral right angled triangle for offering handstand crosses the weir body in water section.Use the sedimentation basin, it is only necessary to which measurement stream water depth, being calculated with triangular-notch weir formula can obtain the total pump-out of all dewatering wells, and the sedimentation basin is simple in structure, economical and practical.
Description
Technical field
Foundation pit dewatering project is the utility model is related to, more particularly to a kind of sedimentation basin.
Background technology
At present, in deep foundation pit precipitation engineering, it is Application of light well point precipitation, pipe well points precipitation and deep-well well to commonly use precipitation scheme
Point dewatering etc., three kinds of scheme cardinal principles are to drill out multiple pumped wells on foundation pit periphery, and chimney filter is put into well, uses drinking-water pipe
It will collect after each well point horizontal connection into suction pump, after suction pump concentrates the water of extraction to be precipitated via sedimentation basin, drain into municipal row
Grid.
Associated construction demand of technical standard, needs to be observed pump-out in pump process, to adjust Model of pump and each
The on off state of well.It is existing frequently-used observation pump-out method be：In each well head, water meter, each water meter number of periodic logging are set
Value.Multiple water meter numerical value need to be added by such a method when counting total pump-out, and operation is time-consuming and laborious.Particularly doing group wells
During bailing test, Monitoring frequency will reach 10min/ times, a water meters up to a hundred that a pumped wells up to a hundred are set need more people at the same time into
Row reading could complete water statistics, and operation is time-consuming and laborious.
Utility model content
The purpose of this utility model is to provide a kind of sedimentation basin, triangular-notch weir is set in sedimentation basin water outlet position, with three
Angle weir formula calculates the total streamflow of all dewatering wells, and the sedimentation basin is simple in structure, is easy to observe total pump-out, economical real
With.
The above-mentioned technical purpose of the utility model technical scheme is that：
A kind of sedimentation basin includes exterior wall, water inlet, water outlet and the triangular-notch weir set in water outlet, the triangular-notch weir
The equilateral right angled triangle for offering handstand crosses the weir body in water section.
By using above-mentioned technical proposal, it is only necessary to which measurement stream water depth, can obtain total with the calculating of triangular-notch weir formula
Pump-out, and the sedimentation basin is simple in structure, it is economical and practical.
Preferably, triangular-notch weir cross that water section sets layer of surface press polish smear wall mortar.
By using above-mentioned technical proposal, cross water section smoothness and improve, reduce interference of the weir wall to current, improve
The accuracy of water flow result of calculation.
Preferably, triangular-notch weir is one piece of partition plate, and the downstream face on the partition plate triangle edge top is inclined-plane.
By using above-mentioned technical proposal, triangular-notch weir is arranged to thin-wall construction, and downstream open end sets inclined-plane to reduce
Interference of the weir wall to current, improves the accuracy of water flow result of calculation；And tabular triangular-notch weir is simple in structure, profit is repeated
With.
Preferably, partition plate is plugged in exterior wall.
By using above-mentioned technical proposal, partition plate can be replaced, and when partition plate damages, the partition plate made good use of is replaced, maintenance
It is convenient；The demand of different size triangular-notch weir can be freely selected when in addition meeting different streamflows.
Preferably, the leg of partition plate is provided with scale.
By using above-mentioned technical proposal, it can eliminate directly by the calibration record flow depth on partition plate and use ruler
Son measurement, reading are more convenient efficiently.
Preferably, scale is to be attached to with graduated joint strip on partition plate.
By using above-mentioned technical proposal, when scale damages, scale can be indicated again by replacing joint strip mode, operate
It is convenient, reduce because scale-wearing and can not be in the case of on-call maintenance to flow depth measurement influence.
Preferably, scale surface sets protective cover, and the protective cover is connected with slide；It is provided with partition plate and slide
The sliding slot being adapted, makes protective cover be moved along scale direction.
By using above-mentioned technical proposal, when reading, extracts protective cover out, is inserted into protective cover after the completion of counting, reduces
Polluted caused by slime water is scale, improve the accuracy of counting.
Preferably, unhurried current wall is set in sedimentation basin, and unhurried current wall is vertical with water (flow) direction.
By using above-mentioned technical proposal, streaming potential is further buffered, and reaches the water velocity smaller of water outlet,
The result precision higher measured with triangular-notch weir principle.
Preferably, sedimentation basin at least sets a bend（10）The current between water inlet and water outlet are made to change stream
To.
By using above-mentioned technical proposal, streaming potential is further buffered, and reaches the water velocity smaller of water outlet,
The result precision higher measured with triangular-notch weir principle.
In conclusion the utility model has the advantages that：
1st, the direct viewing hood high scale of survey crew, you can obtain flowing water depth, calculated with triangular-notch weir formula
Total pump-out is obtained, it is easy to operate efficient；
2nd, the sedimentation basin is only that the sedimentation basin that must have in foundation pit dewatering project is improved, simple in structure, economical real
With；
3rd, the sedimentation basin can intuitive judgment go out the change of total pump-out size, make closing part immediately according to change and draw water
The decision of well, has saved unnecessary energy consumption.
Brief description of the drawings
Fig. 1 is sedimentation basin top view；
Fig. 2 is A-A profiles；
Fig. 3 is B-B profiles；
Fig. 4 is two sedimentation basin top view of embodiment；
Fig. 5 is diaphragm structure schematic diagram；
Fig. 6 is protective cover structure diagram；
Fig. 7 is three sedimentation basin top view of embodiment；
Fig. 8 is example IV sedimentation basin top view.
In figure, 1, exterior wall；11st, groove；21st, water inlet；22nd, water outlet；23rd, bottom of pond；24th, flowing water slope；3rd, triangular-notch weir；4、
Cross water section；41st, wall mortar is smeared；5th, partition plate；51st, inclined-plane；52nd, plug division；53rd, sliding slot；6th, scale；7th, joint strip；8th, protective cover；
81st, slide；9th, flow slowly wall；10th, bend；H, flow depth.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing.The identical attached drawing of wherein identical parts
Mark represents.It should be noted that word "front", "rear" used in the following description, "left", "right", "up" and "down" refer to
It is the direction in attached drawing, word " bottom surface " and " top surface ", " interior " and " outer " are referred respectively to towards or away from particular elements geometry
The direction at center.
Embodiment one：
As shown in Figure 1, a kind of sedimentation basin, including exterior wall 1, water inlet 21, water outlet 22 and the setting at water outlet 22
Triangular-notch weir 3.With reference to Fig. 2, triangular-notch weir 3 is that the equilateral right angled triangle for offering handstand crosses the weir body in water section 4.Sedimentation basin exterior wall
Using brick, thickness 24cm, sedimentation basin long 2m, wide 1.25m only, using water (flow) direction as length direction；Triangular-notch weir 3 is brick knot
Structure, weir body thickness 50cm, total depth 50cm, what the crossing at water section 4 of triangular-notch weir 3 added layer of surface press polish smears wall mortar 41,
Mortar surface must assure that it is smooth, must not be uneven.
As shown in figure 3,21 bottom of sedimentation basin water inlet is higher 50cm than 22 bottom of water outlet, sedimentation basin bottom of pond 23 compares water outlet
The low 1m in 22 bottoms, 24 ratio of slope of flowing water slope are 1：5.Sedimentation basin is in use, the water for pumped of drawing water is discharged into sedimentation basin by water inlet 21
In, after sedimentation basin precipitation and energy dissipating, water velocity slows down, and Chi Zhongshui goes out sedimentation basin from 3 overflow of triangular-notch weir, is ultimately discharged into city
Political affairs drainage pipeline networks.
Triangular-notch weir is the method that measurement channel streamflow is often used in hydraulic engineering, using the three of equilateral right angled triangle
Angle weir, and when water velocity is slow, empirical equation is Q=1.343h2.47, Q is streamflow, and unit is L/min, h be flowing water face with
The height difference of inverted triangle bottommost angle point, unit cm.
As shown in figure 3, in the course of work of drawing water, the flow depth h in triangular-notch weir 3 is measured with ruler, passes through stream
Measure calculation formula Q=1.343h2.47, calculate total amount of drainage, i.e., the total amount of water pumping of all pumped wells.
Embodiment two：
It is with one difference of embodiment：As shown in figs. 4 and 5, triangular-notch weir 3 is one piece of partition plate 5, can be one piece of thickness
Spend the steel plate or plastic plate for 10mm.Partition plate 5 includes the plug division 52 positioned at its both sides and bottom, and 52 width of plug division is 6cm；
The groove 11 being inserted into for partition plate 5 is provided with 1 water outlet 22 of exterior wall.The inverted triangle opened up on different partition plates 5 is of different sizes, can fit
Sedimentation basin for different streamflows uses.In pump process, partition plate 5 can be replaced according to the size of pump-out.
As shown in figure 5, the downstream face on 5 triangle edge top of partition plate is inclined-plane 51, inclined-plane 51 is 45 degree, its right-angle side length of side is
8mm.The leg of partition plate 5 is provided with scale 6, and the horizontal direction of graduation mark, precision mm, can be only arranged at one
On bar right-angle side, can also both sides all set., can be direct by the scale 6 being arranged on partition plate when observing flowing water depth h
Carry out reading.
Scale 6 can be attached on partition plate 5 with graduated joint strip 7, after scale is worn, can be replaced joint strip 7, be made
Reading is unaffected.
In as shown in Figure 6, polluted to reduce slime water caused by scale, 6 surface of scale sets protective cover 8, protective cover 8
On be connected with slide 81；The sliding slot 53 being adapted with slide 81 is provided with partition plate 5, protective cover 8 is moved along scale direction.
Protective cover 8 is extracted out during reading, is inserted into protective cover 8 after the completion of reading.In order to which the friction reduced because of protective cover 8 and partition plate 5 is made
Into the abrasion of scale 6, the material of protective cover 8 elects elastic material as；Protective cover 8 may be set to be double-layer structure, close to scale 6
One layer be the flexible material such as sponge, one layer away from scale 6 is bonded in one for rigid material, double-layer structures such as steel plates with glue
Rise.
Embodiment three：
It is with one difference of embodiment：As shown in fig. 7, setting unhurried current wall 9 in sedimentation basin, unhurried current wall 9 is masonry walls,
Thickness is 37cm, wall face water inlet 21, and vertical with water (flow) direction, and the water made into sedimentation basin is delayed after being blocked
Punching, and flow to water outlet 22 around wall both sides.
The current that unhurried current wall 9 makes to enter in sedimentation basin are buffered, and further reduce flow rate of water flow, improve triangular-notch weir survey
Measure the accuracy of water flow.
Example IV：
It is with three difference of embodiment：As shown in figure 8, sedimentation basin at least sets a bend 10, can be one
Bend, makes the current between water inlet 21 and water outlet 22 change flow direction.When current pass through bend, potential energy is retarded, flow to
The water velocity of water outlet 22 is slowed down, and improves the accuracy of triangular-notch weir measurement water flow.
This specific embodiment is only explanation to the utility model, it is not the limitation to the utility model, ability
Field technique personnel as needed can make the present embodiment the modification of no creative contribution after this specification is read, but
As long as all protected in the right of the utility model be subject to Patent Law.
Claims (5)
1. a kind of sedimentation basin, including exterior wall（1）, water inlet（21）And water outlet（22）, it is characterised in that：
It is additionally included in water outlet（22）Locate the triangular-notch weir set（3）, the triangular-notch weir（3）To offer the equilateral right angle three of handstand
It is angular to cross water section（4）Weir body；
Triangular-notch weir（3）For one piece of partition plate（5）, the partition plate（5）The downstream face on triangle edge top is inclined-plane（51）；
Partition plate（5）It is plugged in exterior wall（1）In；
Partition plate（5）Leg be provided with scale（6）.
2. according to a kind of sedimentation basin described in claim 1, it is characterised in that：Scale（6）It is with graduated joint strip（7）
It is attached to partition plate（5）On.
3. according to a kind of sedimentation basin described in claim 2, it is characterised in that：Scale（6）Surface sets protective cover（8）, institute
State protective cover（8）It is connected with slide（81）；Partition plate（5）On be provided with and slide（81）The sliding slot being adapted（53）, make protective cover
（8）Moved along scale direction.
A kind of 4. sedimentation basin according to any one in claim 1 ~ 3, it is characterised in that：Unhurried current wall is set in sedimentation basin
（9）, flow slowly wall（9）It is vertical with water (flow) direction.
A kind of 5. sedimentation basin according to any one in claim 1 ~ 3, it is characterised in that：Sedimentation basin at least sets one
Bend（10）Make water inlet（21）With water outlet（22）Between current change flow direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721081750.1U CN207237384U (en) | 2017-08-25 | 2017-08-25 | A kind of sedimentation basin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721081750.1U CN207237384U (en) | 2017-08-25 | 2017-08-25 | A kind of sedimentation basin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207237384U true CN207237384U (en) | 2018-04-17 |
Family
ID=61884572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721081750.1U Active CN207237384U (en) | 2017-08-25 | 2017-08-25 | A kind of sedimentation basin |
Country Status (1)
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|---|---|
| CN (1) | CN207237384U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441833A (en) * | 2019-09-10 | 2019-11-12 | 长江水利委员会长江科学院 | A kind of super large range weir formula atomization self-operated measuring unit and method |
| CN115652869A (en) * | 2022-10-31 | 2023-01-31 | 中国农业科学院农田灌溉研究所 | Triangular weir gate system |
-
2017
- 2017-08-25 CN CN201721081750.1U patent/CN207237384U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110441833A (en) * | 2019-09-10 | 2019-11-12 | 长江水利委员会长江科学院 | A kind of super large range weir formula atomization self-operated measuring unit and method |
| CN115652869A (en) * | 2022-10-31 | 2023-01-31 | 中国农业科学院农田灌溉研究所 | Triangular weir gate system |
| CN115652869B (en) * | 2022-10-31 | 2023-12-19 | 中国农业科学院农田灌溉研究所 | Triangular weir gate system |
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