CN207233265U - A kind of unsaturation band water-air two phase flows experimental simulation system - Google Patents
A kind of unsaturation band water-air two phase flows experimental simulation system Download PDFInfo
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- CN207233265U CN207233265U CN201720801148.4U CN201720801148U CN207233265U CN 207233265 U CN207233265 U CN 207233265U CN 201720801148 U CN201720801148 U CN 201720801148U CN 207233265 U CN207233265 U CN 207233265U
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Abstract
The utility model discloses a kind of unsaturation band water-air two phase flows experimental simulation system, including rainer, rainer lower inside is placed with the experimental tank of open-top, experiment trench bottom is connected by conduit with the sealed bottom of level of ground water control device, the height of level of ground water control device can be adjusted, effective rainfall recharge collection device is placed below level of ground water control device, level of ground water control device includes the catch basin of open-top, the side wall of catch basin is equipped with level of ground water control hole, catch basin is communicated with effective rainfall by the sealing of level of ground water control hole and feeds collecting pipe, effective rainfall supply collecting pipe lower end is stretched into effective rainfall supply collection device.The utility model can be simulated accurately different rainfall intensities and rainfall duration, and differently be descended under water level conditions, at different moments moisture content in experimental tank, and gaseous pressure and rainfall cumulative infiltration, are realized to accurate simulation of the unsaturation with water-air two phase flows.
Description
Technical field
The utility model belongs to groundwater science and engineering field, is related to a kind of water-air two phase flows experimental simulation system, tool
Body is related to a kind of unsaturation band water-air two phase flows experimental simulation system.
Background technology
In addition to solid skeletal, the hole in unsaturation band is completely filled with by current and gas, is a typical aqueous vapor
Two-phase streaming system, on the one hand, numerical analysis of rainfall infiltration is excitation principal element of the unsaturation with aqueous vapor two-phase campaign, on the other hand,
The difference of level of ground water can significantly affect motion process of the unsaturation with water-air two phase flows.Simple water is used in traditional experiment
Control device cannot accurately all kinds of rainfalls of simulation, the step of level of ground water is adjusted in actual experiment, is excessively cumbersome, and
Many experimental provisions single can only control a variable, and lacking can control the integrated system of more experiment conditions to carry out water-air two phase flows
Research.
The content of the invention
For in the prior art the defects of and deficiency, the utility model provide a kind of unsaturation band water-air two phase flows and test
Simulation system, overcome the prior art cannot accurately all kinds of rainfalls of simulation, adjust level of ground water the step of it is excessively frequent, only
Can single the defects of controlling a variable to carry out water-air two phase flows research.
To reach above-mentioned purpose, the utility model takes following technical solution：
A kind of unsaturation band water-air two phase flows experimental simulation system, including rainer, rainer lower inside are placed
There is the experimental tank of open-top, further include level of ground water control device, the height of level of ground water control device can be adjusted, underground
Effective rainfall recharge collection device is placed below water-level control apparatus；
Multiple probe apertures are machined with the different height of the experiment groove sidewall；
The level of ground water control device includes the catch basin of open-top, and the trench bottom that catchments passes through conduit and experimental tank
Sealed bottom connection, the side wall of catch basin is equipped with level of ground water control hole, and catch basin passes through level of ground water control hole sealing company
Effective rainfall supply collecting pipe is connected with, effective rainfall supply collecting pipe lower end is stretched into effective rainfall supply collection device.
The utility model also has following distinguishing feature：
The rainer is artificial rainfall simulator, and rainfall simulation device includes metering tank assemblies and body frame
Frame, metering tank assemblies connect the nozzle at the top of body frame by the water supply seal of tube, and metering tank assemblies are internally provided with drive
Dynamic motor, rainfall timer and velocity metre.
The nozzle is arranged on the surface of experimental tank.
The nozzle is located at directly over experimental tank at least at 30cm.
The area of the nozzle distribution is more than the open-topped size of experimental tank.
The probe aperture is more intensive in the position distribution nearer apart from experimental tank upper end, and the sealing insertion of probe aperture interior energy passes
The probe of sensor, sensor connection data acquisition device, the sensor is gaseous pressure sensor and soil moisture sensor.
The catch basin and effective rainfall supply collection device are all installed on crane, and catch basin and effective rainfall are mended
Height to collection device can be adjusted；Catch basin is located at the top of effective rainfall supply collection device.
The experiment trench bottom is placed in support plate, and the height of support plate can be adjusted.
The conduit is sufficiently long hose.
The effective rainfall supply collection device is graduated cylinder.
Compared with prior art, beneficial has the technical effect that the utility model：
When the rainer of the utility model carries out artificially-simulated rainfall, raindrop can cover and fall into effective drop of experimental tank
In rain area, while the driving motor inside the metering tank assemblies in rainer, rainfall timer and velocity metre are controlled, can
To adjust rainfall intensity and rainfall duration at any time.
The height of the level of ground water control device of the utility model can be adjusted, and level of ground water control device is opened including top
The catch basin put, the side wall of catch basin are equipped with level of ground water control hole, and level height where level of ground water control hole is underground
The height of water level, can be with simple realization level of ground water by adjusting the height for catchmenting groove location to set required level of ground water
Adjustment.
The unsaturation band water-air two phase flows experimental simulation system of the utility model, by experimental tank, rainer, data acquisition
Case, level of ground water control device and effective rainfall supply collection device are combined into a total system, can accurately simulate difference
Rainfall intensity and rainfall duration, and differently descend under water level conditions, moisture content in experimental tank at different moments, gaseous pressure and
Rainfall cumulative infiltration, is realized to accurate simulation of the unsaturation with water-air two phase flows.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the overall structure diagram of the embodiment 1 of the utility model；
Fig. 3 is the utility model sensor and data acquisition device connection diagram；
Each label is expressed as in figure:1- rainers, 2- experimental tanks, 3- conduits, 4- level of ground water control devices, 5- are effective
Rainfall recharge collection device, 6- cranes, 7- support plates；
(1-1)-metering tank assemblies, (1-2)-body frame, (1-3)-feed pipe, (1-4)-nozzle；
(2-1)-probe aperture, (2-1-1)-sensor, (2-1-3)-data acquisition device；
(4-1)-catch basin, (4-1-1)-level of ground water control hole, (4-1-2)-effective rainfall supply collecting pipe.
The utility model is illustrated below in conjunction with specification drawings and specific embodiments.
Embodiment
As shown in figures 1 and 3, a kind of unsaturation band water-air two phase flows experimental simulation system, including rainer 1, rainfall
Device 1 is artificial rainfall simulator, and rainfall simulation device includes metering tank assemblies 1-1 and body frame 1-2, measures water pot
Device 1-1 seals the nozzle 1-4 at the top of connection body frame 1-2 by feed pipe 1-3, is placed with immediately below nozzle 1-4
The experimental tank 2 of open-top, and the area of nozzle 1-4 distributions is more than 2 open-topped size of experimental tank, drops manual simulation
During rain, raindrop can be covered and fallen into the effective rainfall area of experimental tank 2；Metering tank assemblies 1-1 is internally provided with driving motor,
Rainfall timer and velocity metre, can adjust rainfall intensity and rainfall duration at any time.
2 bottom of experimental tank is connected by conduit 3 with the sealed bottom of level of ground water control device 4, level of ground water control dress
Putting 4 height can be adjusted, and level of ground water control device 4 includes the catch basin 4-1 of open-top, and catch basin 4-1 bottoms pass through
Conduit 3 is connected with the sealed bottom of experimental tank 2, and the side wall of catch basin 4-1 is equipped with level of ground water control hole 4-1-1, level of ground water
Level height where control hole 4-1-1 is the height of level of ground water, set by adjusting catch basin 4-1 positions needed under
The height of water level.
Catch basin 4-1 is communicated with effective rainfall by level of ground water control hole 4-1-1 sealings and feeds collecting pipe 4-1-2, has
Effect rainfall recharge collecting pipe 4-1-2 is stretched into lower end in the effective rainfall supply collection device 5 of the lower section of level of ground water control device 4,
Infiltration capacity is effectively accumulated so as to measure rainfall at different moments.
Multiple probe aperture 2-1 are machined with the different height of 2 side wall of experimental tank, probe aperture 2-1 is apart from 2 upper end of experimental tank
Nearer position distribution is more intensive, the probe of probe aperture 2-1 interior energies sealing insertion sensor 2-1-1, sensor 2-1-1 connection numbers
According to vasculum 2-1-3, sensor 2-1-1 is gaseous pressure sensor and soil moisture sensor, soil in the real time measure experimental tank 2
Gaseous pressure and moisture content in earth unsaturation band.
Above-mentioned technical proposal is deferred to, specific embodiment of the utility model is given below, it is necessary to which explanation is that this practicality is new
Type is not limited to specific examples below, and it is new that all equivalents done on the basis of technical scheme each fall within this practicality
The protection domain of type.The utility model is described in further details with reference to embodiment.
Embodiment 1：
As shown in Fig. 2 to 3, a kind of unsaturation band water-air two phase flows experimental simulation system, including rainer 1, it is used
Rainer 1 is DIK-6000 rainfall simulation devices, and rainfall simulation device includes metering tank assemblies 1-1 and body frame
1-2, metering tank assemblies 1-1 seal the nozzle 1-4 at the top of connection body frame 1-2, metering water pot dress by feed pipe 1-3
Put 1-1 and be internally provided with driving motor, rainfall timer and velocity metre.
The experimental tank 2 of open-top is placed with below body frame 1-2, experimental tank 2 is cylindrical organic glass material, real
Check of foundation subsoil basal diameter is 30cm, is highly 150cm, and experimental tank wall thickness is more than or equal to 3mm, the nozzle at the top of body frame 1-2
1-4 is arranged on the surface of experimental tank 2 at least at 30cm, and the area of nozzle 1-4 distributions is more than 2 open-topped size of experimental tank,
So as to effectively simulate rain making, and raindrop is covered and fall into the effective rainfall area of experimental tank 2.
Eight axially distributed probe aperture 2-1 are machined with the different height of 2 side wall of experimental tank, gas is inserted into for sealing
The probe of phase pressure sensor, the symmetrical side wall of central axis of eight probe aperture 2-1 along experimental tanks 2 are equipped with other eight spies
Pin hole 2-1, for sealing the probe of insertion soil moisture sensor, probe aperture 2-1 is in the position nearer apart from 2 upper end of experimental tank
Distribution is more intensive, and in the present embodiment, distances of the top probe hole 2-1 away from the top of experimental tank 2 is 5cm, and bottom probe aperture 2-1 is in fact
The distance of 2 bottom of check of foundation subsoil is 45cm, sensor 2-1-1 connection data acquisition devices 2-1-3.
2 bottom of experimental tank is connected by conduit 3 with the sealed bottom of level of ground water control device 4, it is preferred that conduit 3 is
Sufficiently long hose, so that the height of level of ground water control device 4 can be adjusted arbitrarily, level of ground water control device 4 includes
The catch basin 4-1 of open-top, catch basin 4-1 is the groove that two upper coarse and lower fine cylinders are composed in the present embodiment,
Lower cylindrical shape is highly
120mm, basal diameter 180mm, upper cylindrical are highly 80mm, basal diameter 250mm, catch basin 4-1 bottoms
Connected by conduit 3 with the sealed bottom of experimental tank 2, the upper cylindrical bottom of catch basin 4-1 is machined with level of ground water control
Hole 4-1-1, catch basin 4-1 are communicated with effective rainfall by level of ground water control hole 4-1-1 sealings and feed collecting pipe 4-1-2, have
Effect rainfall recharge collecting pipe 4-1-2 is stretched into lower end in the effective rainfall supply collection device 5 of the lower section of water-level control apparatus 4, effectively
Rainfall recharge collection device 5 is graduated cylinder, can accurately measure the effective infiltration capacity of rainfall.
In the present embodiment, catch basin 4-1 and effective rainfall supply collection device 5 are all installed on crane 6, can be passed through
Crane 6 adjusts the height of catch basin 4-1 and effective rainfall supply collection device 5；And catch basin 4-1 is located at effective rainfall benefit
It is convenient to collect all effective rainfall supplies to the top of collection device 5.
In the present embodiment, 2 bottom of experimental tank is placed in support plate 7, and the height of support plate 7 can be adjusted, so that according to
Experiment demand adjusts the nozzle 1-4 at the top of body frame 1-2 to the distance at the top of experimental tank 2 at any time.
The utility model is when in use：
(1) test medium is filled out experimental tank 2 is built-in, until medium at the top of experimental tank 2 with being substantially flush；
(2) catch basin 4-1 and effective rainfall supply collection device 5 are fixed on crane, catch basin 4-1 is fixed on
More than 2 tip position of experimental tank, the water filling into catch basin 4-1, reduces catch basin 4-1 to reality again after test medium is fully saturated
Check of foundation subsoil starts draining below 2 bottom, so fills draining 2~3 times repeatedly, 12h is stood after each draining；
(3) laboratory apparatus is installed, the sealing insertion of the probe of gaseous pressure sensor and soil moisture sensor is corresponding
In probe aperture 2-1, and sensor 2-1-1 is connected to data acquisition device 2-1-3, fills draining after installing repeatedly again, ensured
Instrument comes into full contact with medium；
(4) position of catch basin 4-1 is adjusted to set lower height of water level as needed, and into catch basin 4-1, water-filling makes experiment
Water level in groove 2, which reaches, requires position, stands a period of time, and the water level in catch basin 4-1 drops to level of ground water control hole 4-1-
1, at this moment, the water level in experimental tank 2 is the level height of level of ground water control hole 4-1-1, when experimental system reaches stable shape
State prepares to start rainfall simulation experiment；
(6) shift rainer 1 onto experimental tank 2 position directly above to fix, and water is in horizon rule correction rainer 1
Level state, sets rainfall intensity and rainfall duration needed for experiment, starts rainfall；
(7) collection device 5 is fed by effective rainfall and measures rainfall cumulative infiltration at different moments, treat 2-1 pairs of probe aperture
The each point of level height is answered to recover in the initial value or effective rainfall supply collection device 5 of data acquisition device 2-1-3 measure again without bright
The mark terminated during aobvious infiltration capacity as this experiment；
(8) level of ground water or condition of raining are reset, is repeated in testing.
Claims (10)
1. a kind of unsaturation band water-air two phase flows experimental simulation system, it is characterised in that including rainer (1), rainer
(1) lower inside is placed with the experimental tank (2) of open-top, further includes level of ground water control device (4), level of ground water control dress
Putting the height of (4) can be adjusted, and effective rainfall recharge collection device (5) is placed below level of ground water control device (4)；
Multiple probe apertures (2-1) are machined with the different height of described experimental tank (2) side wall；
The level of ground water control device (4) includes the catch basin (4-1) of open-top, and catch basin (4-1) bottom is by leading
Pipe (3) is connected with the sealed bottom of experimental tank (2), and the side wall of catch basin (4-1) is equipped with level of ground water control hole (4-1-1), collection
Sink (4-1) is communicated with effective rainfall by level of ground water control hole (4-1-1) sealing and feeds collecting pipe (4-1-2), effectively drop
Rain supply collecting pipe (4-1-2) lower end is stretched into effective rainfall supply collection device (5).
2. simulation system as claimed in claim 1, it is characterised in that the rainer (1) is artificial rainfall simulator,
Rainfall simulation device includes metering tank assemblies (1-1) and body frame (1-2), and metering tank assemblies (1-1) pass through water supply
The nozzle (1-4) at the top of (1-3) sealing connection body frame (1-2) is managed, metering tank assemblies (1-1) are internally provided with driving electricity
Machine, rainfall timer and velocity metre.
3. simulation system as claimed in claim 2, it is characterised in that the nozzle (1-4) be arranged on experimental tank (2) just on
Side.
4. simulation system as claimed in claim 3, it is characterised in that the nozzle (1-4) is located at directly over experimental tank (2)
At least at 30cm.
5. simulation system as claimed in claim 4, it is characterised in that the area of nozzle (1-4) distribution is more than experiment
Groove (2) open-topped size.
6. simulation system as claimed in claim 1, it is characterised in that the probe aperture (2-1) is on experimental tank (2)
The nearer position distribution in end is more intensive, the probe of probe aperture (2-1) interior energy sealing insertion sensor (2-1-1), sensor (2-1-
1) data acquisition device (2-1-3) is connected, the sensor (2-1-1) is gaseous pressure sensor and soil moisture sensor.
7. simulation system as claimed in claim 1, it is characterised in that the catch basin (4-1) and effective rainfall supply are received
Acquisition means (5) are all installed on crane (6), and the height of catch basin (4-1) and effective rainfall supply collection device (5) can be adjusted
Section；Catch basin (4-1) is located at the top of effective rainfall supply collection device (5).
8. simulation system as claimed in claim 1, it is characterised in that described experimental tank (2) bottom is placed on support plate (7)
On, the height of support plate (7) can be adjusted.
9. simulation system as claimed in claim 1, it is characterised in that the conduit (3) is sufficiently long hose.
10. simulation system as claimed in claim 1, it is characterised in that the effective rainfall supply collection device (5) is amount
Cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720801148.4U CN207233265U (en) | 2017-07-04 | 2017-07-04 | A kind of unsaturation band water-air two phase flows experimental simulation system |
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| CN201720801148.4U CN207233265U (en) | 2017-07-04 | 2017-07-04 | A kind of unsaturation band water-air two phase flows experimental simulation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133221A (en) * | 2019-05-15 | 2019-08-16 | 枣庄学院 | For simulating the experimental rig of cavern's negative pressure |
-
2017
- 2017-07-04 CN CN201720801148.4U patent/CN207233265U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133221A (en) * | 2019-05-15 | 2019-08-16 | 枣庄学院 | For simulating the experimental rig of cavern's negative pressure |
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