CN108693332A - A kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment - Google Patents
A kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment Download PDFInfo
- Publication number
- CN108693332A CN108693332A CN201810577032.6A CN201810577032A CN108693332A CN 108693332 A CN108693332 A CN 108693332A CN 201810577032 A CN201810577032 A CN 201810577032A CN 108693332 A CN108693332 A CN 108693332A
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- precipitation
- water
- rainfall
- sediment
- artificially
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/24—Earth materials
Abstract
The invention discloses a kind of artificially-simulated rainfall runoff test sites for eliminating influence to sediment, including sediment deposition mechanism and simulated rainfall mechanism;The sediment deposition mechanism includes precipitation cistern, precipitation water inlet pipe and precipitation outlet pipe, being horizontally disposed in the precipitation cistern has separation partition board, the precipitation cistern is divided into precipitation water portion and the silt discharge unit of lower part on top by the separation partition board, and the bottom of the silt discharge unit is connected to spoil disposal sand tube;The simulated rainfall mechanism includes runoff trial zone, rainfall water distributor and rainfall nozzle;The water inlet end of the water outlet of the precipitation water inlet pipe and the precipitation outlet pipe is respectively positioned in the precipitation cistern, and the water outlet of the precipitation outlet pipe connects the rainfall water distributor, and is provided with water-delivery pump on the precipitation outlet pipe.The present invention can efficiently separate the silt contained in water, avoid silt obstruction water pipe or nozzle and influence default raininess, and can prevent remaining silt obstruction nozzle.
Description
Technical field
The present invention relates to a kind of artificially-simulated rainfall runoff test sites for eliminating influence to sediment, belong to rainwash experiment skill
Art field.
Background technology
When artificially-simulated rainfall carries out runoff experiment, since the silt contained in water can block water pipe or nozzle, to
It influences to preset raininess, keeps test effect undesirable;And after an artificially-simulated rainfall, remaining silt will block spray
Head causes artificially-simulated rainfall equipment can not work normally when testing next time, and the method for common elimination silt is exactly to coming
Water is precipitated, but the suction in water pump water lift can break the static state of water, the silt for being deposited to bottom be confused, therefore mud
Husky separating effect is bad.
Invention content
The present invention is exactly in view of the deficienciess of the prior art, providing a kind of artificially-simulated rainfall diameter for eliminating influence to sediment
Test site is flowed, the silt contained in water can be efficiently separated, silt obstruction water pipe or nozzle is avoided and influences default raininess, and
Remaining silt obstruction nozzle can be prevented, artificially-simulated rainfall equipment is avoided result in and can not work normally.
To solve the above problems, the technical solution used in the present invention is as follows:
A kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment, including sediment deposition mechanism and simulated rainfall mechanism;
The sediment deposition mechanism includes precipitation cistern, precipitation water inlet pipe and precipitates outlet pipe, and level is set in the precipitation cistern
It is equipped with separation partition board, the precipitation silt of water portion and lower part that the precipitation cistern is divided into top by the separation partition board is arranged
Go out portion, the bottom of the silt discharge unit is connected to spoil disposal sand tube;The simulated rainfall mechanism includes runoff trial zone, is set to institute
The rainfall nozzle stated the rainfall water distributor right over runoff trial zone, be set on the rainfall water distributor;The precipitation water inlet
The water inlet end of the water outlet of pipe and the precipitation outlet pipe is respectively positioned in the precipitation cistern, and the outlet pipe that precipitates goes out
Water end (W.E.) connects the rainfall water distributor, and is provided with water-delivery pump on the precipitation outlet pipe.
As an improvement of the above technical solution, the sediment deposition mechanism further includes being set on the outside of the precipitation cistern
Propulsion device, the direction of propulsion of the propulsion device is horizontally disposed and connects the separation partition board.
As an improvement of the above technical solution, the horizontal sectional area in the precipitation water portion is more than the silt discharge unit
Horizontal sectional area, and the precipitation is provided with the first glass inclined-plane, the bottom setting of the silt discharge unit with the bottom in water portion
There are the second glass inclined-plane, the lower end on first glass inclined-plane to connect the separation partition board, the lower end on second glass inclined-plane
Connect the spoil disposal sand tube.
As an improvement of the above technical solution, the spoil disposal sand tube and the junction of the silt discharge unit are provided with first
Valve.
As an improvement of the above technical solution, the precipitation cistern is arranged above shading ceiling.
As an improvement of the above technical solution, further include that clear water backwashes mechanism, clear water mechanism of backwashing includes clear water storage
It storehouse and backwashes device, backwash device described in the clear water warehouse connection, the device that the backwashes company in parallel with the precipitation outlet pipe
The rainfall water distributor is connect, and the second valve is provided between the precipitation outlet pipe and the rainfall water distributor, it is described to backwash
It is provided with third valve between device and the rainfall water distributor.
As an improvement of the above technical solution, clear water mechanism of backwashing further includes delivery hose;The simulated rainfall machine
Structure further includes rotating device, and the rainfall water distributor is horizontally disposed and one end connects the rotating device, the rainfall nozzle
Towards perpendicular to the rainfall water distributor;The device that backwashes is connected in parallel with the precipitation outlet pipe under the delivery hose
The upper end at end, the delivery hose connects the rainfall water distributor.
As an improvement of the above technical solution, clear water mechanism of backwashing further includes the header tank that backwashes, and described backwash is catchmented
Case backwashes device and the precipitation outlet pipe is connected in parallel the lower end of the delivery hose with described, it is described backwash header tank with
The 4th valve is provided between the delivery hose.
As an improvement of the above technical solution, the runoff trial zone includes outer walls of concrete, is set to the concrete
Experiment in outer wall fills soil layer, the triangular-notch weir being set on the outside of the outer walls of concrete upper end and is set to the coagulation
Discharge outlet is infiltrated in native outer wall lower end, and the triangular-notch weir and the discharge outlet of infiltrating are both provided with water ga(u)ge.
Compared with prior art, implementation result of the invention is as follows by the present invention:
A kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment of the present invention, detaching partition board by setting will sink
Shallow lake cistern is divided into precipitation water portion and the silt discharge unit of lower part on top, can efficiently separate the mud contained in water
Sand avoids silt obstruction water pipe or nozzle and influences default raininess;And by the way that clear water warehouse, backwash device and rotating dress is arranged
It sets, remaining silt obstruction nozzle can be prevented, artificially-simulated rainfall equipment is avoided result in and can not work normally.
In addition, a kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment of the present invention, also has structure
Simply, easy for installation, floor space is small, it is cheap and safety it is easy to operate the advantages that.
Description of the drawings
Fig. 1 is a kind of structural representation at artificially-simulated rainfall runoff test site for eliminating influence to sediment of the present invention
Figure.
Specific implementation mode
Illustrate present disclosure below in conjunction with specific embodiments.
As shown in Figure 1, a kind of artificially-simulated rainfall runoff test site of the elimination influence to sediment provided by the present embodiment
Structural schematic diagram.
A kind of artificially-simulated rainfall runoff test site for elimination influence to sediment that the present embodiment is provided, including sediment deposition
Mechanism, clear water backwash mechanism and simulated rainfall mechanism;
The sediment deposition mechanism includes precipitation cistern, precipitation water inlet pipe 12 and precipitation outlet pipe 13, the precipitation cistern
In be horizontally disposed with and have separation partition board 14, the precipitation cistern is divided into the precipitation water portion on top by the separation partition board 14
111 and lower part silt discharge unit 112, the bottom connection spoil disposal sand tube 15 of the silt discharge unit 112;The simulated rainfall machine
Structure includes runoff trial zone, is set to right over the runoff trial zone rainfall water distributor 22 is set to the rainfall water distribution
Rainfall nozzle 23 on pipe 22;The water inlet end of the water outlet of the precipitation water inlet pipe 12 and the precipitation outlet pipe 13 is respectively positioned on institute
It states in precipitation cistern, and the water outlet of the precipitation outlet pipe 13 connects the rainfall water distributor 22, and the precipitation is discharged
Water-delivery pump 16 is provided on pipe 13.The runoff trial zone includes outer walls of concrete 211, is set to the outer walls of concrete 211
In experiment filling soil layer 212, the triangular-notch weir 213 that is set on the outside of 211 upper end of the outer walls of concrete and be set to described
Discharge outlet 214 is infiltrated in 211 lower end of outer walls of concrete, and the triangular-notch weir 213 and the discharge outlet 214 of infiltrating are both provided with flow
Gauge.
The sediment deposition mechanism further includes the propulsion device 17 being set on the outside of the precipitation cistern, the propulsion dress
Set 17 direction of propulsion it is horizontally disposed and connect the separation partition board 14.The precipitation is more than with the horizontal sectional area in water portion 111
The horizontal sectional area of the silt discharge unit 112, and the precipitation is provided with the first glass inclined-plane 113 with the bottom in water portion 111,
The bottom of the silt discharge unit 112 is provided with the second glass inclined-plane 114, and the lower end on first glass inclined-plane 113 connects institute
Separation partition board 14 is stated, the lower end on second glass inclined-plane 114 connects the spoil disposal sand tube 15.The spoil disposal sand tube 15 with it is described
The junction of silt discharge unit 112 is provided with the first valve 151.The precipitation cistern is arranged above shading ceiling
115。
Clear water mechanism of backwashing includes clear water warehouse 31 and backwashes device 32, and the clear water warehouse 31 connects described backwash
Device 32, device 32 and the precipitation outlet pipe 13 of backwashing are connected in parallel the rainfall water distributor 22, and described are settled out
The second valve 33, device 32 and the rainfall water distributor 22 of backwashing are provided between water pipe 13 and the rainfall water distributor 22
Between be provided with third valve 34.Clear water mechanism of backwashing further includes delivery hose 35;The simulated rainfall mechanism further includes
Rotating device 24, the rainfall water distributor 22 is horizontally disposed and one end connects the rotating device 24, the rainfall nozzle 23
Towards perpendicular to the rainfall water distributor 22;It is soft that the device 32 that backwashes with the precipitation outlet pipe 13 is connected in parallel the water delivery
The upper end of the lower end of pipe 35, the delivery hose 35 connects the rainfall water distributor 22.Clear water mechanism of backwashing further includes back
Rush header tank 36, it is described backwash header tank 36 with it is described backwash device 32 and the precipitation outlet pipe 13 be connected in parallel it is described defeated
The lower end of water hose 35, described backwash are provided with the 4th valve 37 between header tank 36 and the delivery hose 35.
When work starts, first valve 151, the third valve 34 and the 4th valve 37, which are in, closes shape
State, second valve 33 are in opening state.
Preliminary precipitation is carried out to water source by the sediment deposition mechanism first, to detach most of silt in water
Out, it first passes through the precipitation water inlet pipe 12 to inject at water source in the precipitation cistern, opening the separation partition board 14 makes institute
It states precipitation water portion 111 to be connected to the silt discharge unit 112, when most of sediment deposition enters precipitation water portion 111
Afterwards, closing the separation partition board 14 makes precipitation water portion 111 and the silt discharge unit 112 be isolated, and can open at this time
First valve 151 makes the silt in the silt discharge unit 112 be discharged from the spoil disposal sand tube 15 together with water;Together
Shi Suoshu precipitations are conveyed through initial gross separation silt water through the precipitation outlet pipe 13 and the water-delivery pump 16 in water portion 111
Artificially-simulated rainfall runoff experiment is carried out to the rainfall water distributor 22.
Artificially-simulated rainfall runoff after the test, closes second valve 33, opens the third valve 34, pass through
The device 32 that backwashes rinses the rainfall nozzle 23 with the clear water in the clear water warehouse 31, prevents remaining silt in water from existing
It lumps and results in blockage in the rainfall nozzle 23, in order to avoid influence use when experiment next time;Carry out artificially-simulated rainfall runoff examination
When testing, the rainfall nozzle 23 is vertically oriented to lower section, and when being rinsed, the rainfall water distribution is driven by the rotating device 24
Pipe 22 rotates, and the rainfall nozzle 23 is made to be vertically oriented to top, after rinsing once, closes the third valve 34, and open institute
The 4th valve 37 is stated, the water in the rainfall nozzle 23 is made together, described return to be back under self gravitation effect with silt
It rushes in header tank 36;Then the third valve 34 is opened again, and closes the 4th valve 37, then passes through the device that backwashes
32 pairs of rainfall nozzles 23 are rinsed, and are then shut off the third valve 34, and open the 4th valve 37, are made described
Water in rainfall nozzle 23 is back in the header tank 36 that backwashes;It repeats the above process repeatedly, until the rainfall nozzle 23
It cleans up completely.
The foregoing is a detailed description of the present invention in conjunction with specific embodiments, and it cannot be said that the present invention is specifically real
It applies and is only limitted to these explanations.For those skilled in the art to which the present invention belongs, before not departing from present inventive concept
It puts, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to the scope of protection of the invention.
Claims (9)
1. a kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment, characterized in that including sediment deposition mechanism and mould
Quasi- rainfall mechanism;The sediment deposition mechanism includes precipitation cistern, precipitation water inlet pipe(12)With precipitation outlet pipe(13), described
Being horizontally disposed in precipitation cistern has separation partition board(14), the separation partition board(14)The precipitation cistern is divided into top
Precipitation water portion(111)With the silt discharge unit of lower part(112), the silt discharge unit(112)Bottom connection spoil disposal it is husky
Pipe(15);The rainfall water distributor that the simulated rainfall mechanism includes runoff trial zone, is set to right over the runoff trial zone
(22), be set to the rainfall water distributor(22)On rainfall nozzle(23);The precipitation water inlet pipe(12)Water outlet and institute
State precipitation outlet pipe(13)Water inlet end be respectively positioned in the precipitation cistern, and the precipitation outlet pipe(13)Water outlet connect
Connect the rainfall water distributor(22), and the precipitation outlet pipe(13)On be provided with water-delivery pump(16).
2. a kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment as described in claim 1, characterized in that described
Sediment deposition mechanism further includes the propulsion device being set on the outside of the precipitation cistern(17), the propulsion device(17)Push away
It is horizontally disposed with into direction and connects the separation partition board(14).
3. a kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment as described in claim 1, characterized in that described
Precipitation water portion(111)Horizontal sectional area be more than the silt discharge unit(112)Horizontal sectional area, and the precipitation water
Portion(111)Bottom be provided with the first glass inclined-plane(113), the silt discharge unit(112)Bottom be provided with the second glass
Inclined-plane(114), first glass inclined-plane(113)Lower end connect the separation partition board(14), second glass inclined-plane
(114)Lower end connect the spoil disposal sand tube(15).
4. a kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment as described in claim 1, characterized in that described
Spoil disposal sand tube(15)With the silt discharge unit(112)Junction be provided with the first valve(151).
5. a kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment as described in claim 1, characterized in that described
Precipitation cistern is arranged above shading ceiling(115).
6. a kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment as described in claim 1, characterized in that also wrap
It includes clear water to backwash mechanism, clear water mechanism of backwashing includes clear water warehouse(31)With the device that backwashes(32), the clear water warehouse
(31)Backwash device described in connection(32), the device that backwashes(32)With the precipitation outlet pipe(13)It is connected in parallel the rainfall
Water distributor(22), and the precipitation outlet pipe(13)With the rainfall water distributor(22)Between be provided with the second valve(33), institute
State the device that backwashes(32)With the rainfall water distributor(22)Between be provided with third valve(34).
7. a kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment as claimed in claim 6, characterized in that described
Clear water mechanism of backwashing further includes delivery hose(35);The simulated rainfall mechanism further includes rotating device(24), the rainfall cloth
Water pipe(22)Horizontally disposed and one end connects the rotating device(24), the rainfall nozzle(23)Direction perpendicular to the drop
Waterproof cloth water pipe(22);The device that backwashes(32)With the precipitation outlet pipe(13)It is connected in parallel the delivery hose(35)Under
End, the delivery hose(35)Upper end connect the rainfall water distributor(22).
8. a kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment as claimed in claim 7, characterized in that described
Clear water mechanism of backwashing further includes the header tank that backwashes(36), the header tank that backwashes(36)With the device that backwashes(32)And it is described
Precipitate outlet pipe(13)It is connected in parallel the delivery hose(35)Lower end, the header tank that backwashes(36)With the delivery hose
(35)Between be provided with the 4th valve(37).
9. a kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment as described in claim 1, characterized in that described
Runoff trial zone includes outer walls of concrete(211), be set to the outer walls of concrete(211)In experiment fill soil layer(212),
It is set to the outer walls of concrete(211)Triangular-notch weir on the outside of upper end(213)And it is set to the outer walls of concrete(211)
Discharge outlet is infiltrated in lower end(214), the triangular-notch weir(213)Discharge outlet is infiltrated with described(214)It is both provided with water ga(u)ge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810577032.6A CN108693332A (en) | 2018-06-07 | 2018-06-07 | A kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810577032.6A CN108693332A (en) | 2018-06-07 | 2018-06-07 | A kind of artificially-simulated rainfall runoff test site for eliminating influence to sediment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110672816A (en) * | 2019-10-23 | 2020-01-10 | 贵州师范大学 | Be suitable for open-air portable domatic soil erosion experimental apparatus in karst area |
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| WO1996025663A1 (en) * | 1995-02-17 | 1996-08-22 | British Nuclear Fuels Plc | Simulation testing of a capping for a waste disposal site |
| CN102980988A (en) * | 2012-11-22 | 2013-03-20 | 重庆大学 | Device for simulating pollutant migration and transformation process of purple soil slope farmland |
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Application publication date: 20181023 |
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| RJ01 | Rejection of invention patent application after publication |