CN104535739A - Indoor manual simulation acid rain test device - Google Patents
Indoor manual simulation acid rain test device Download PDFInfo
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- CN104535739A CN104535739A CN201410819706.0A CN201410819706A CN104535739A CN 104535739 A CN104535739 A CN 104535739A CN 201410819706 A CN201410819706 A CN 201410819706A CN 104535739 A CN104535739 A CN 104535739A
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- rainfall
- acid precipitation
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Abstract
The invention relates to simulation devices in the fields of environmental geotechnics and test equipment and in particular relates to an indoor manual simulation acid rain test device. The device disclosed by the invention comprises a water supply power device A, an air power device B, a rainfall test device C, a fluid return device D, a water guide pipe, a gas guide pipe, a guide pipe and a drainage pipe. The invention aims at providing the indoor manual simulation acid rain test device, the particularity of acid rainfall can be effectively simulated, the problems that the rain intensity adjustability is low, the rainfall distribution range is wide and the flow is difficult to control in the prior art are solved, the reaction process of the acid rainfall from the surface of rock and earth mass to the interior of the rock and earth mass is realized, and research data is provided for degradation research of physical and mechanical properties of the rock and earth mass under the acid rainfall and solution erosion.
Description
Technical field
The present invention relates to the analogue means in environmental geotechnical and testing equipment field, be specifically related to a kind of indoors artificial simulation acid precipitation test unit.
Background technology
Artificially-simulated rainfall is the natural rainfall utilizing mechanical hook-up to carry out simulating nature circle, for carrying out related science research, has become important technical that is indoor and field test.Have the representative device of artificially-simulated rainfall both at home and abroad: vibratility rainfall simulator, rotating disc type rainfall simulator, slot type artificially-simulated rainfall machine, SR type artificially-simulated rainfall device etc.And the simulation of above-mentioned rainer to acid precipitation has certain limitation, therefore, for acid precipitation property and improve rainfall simulator to simulate acid precipitation.
In recent years, China's acid precipitation rain source material SO
2day by day increase with NOx discharge, acid precipitation district acidity constantly raises, and area constantly expands.The environmental acidification problem that acid precipitation causes is outstanding day by day, and the erosion action of acidified environment to all kinds of Rock And Soil constantly manifests.Under the effect of acidic environmental water, the key chemical components in Rock And Soil, as the loss such as calcium oxide, sodium oxide molybdena speed is fast, number of dropouts is large, and the composition playing cementation in rock mass is lost rapidly, destroys rock mass structure, causes Rock And Soil surface strength to reduce.Along with the time increases, dissolving, corrosion are internally developed by Rock And Soil top layer gradually, destroy the integrality of rock mass further, directly affect distortion and the strength characteristic of rock.Carrying out acid precipitation in Rock And Soil physico-chemical attack Effect study process, the corrosivity correlation parameter of Rock And Soil must be obtained by simulation laboratory test, and under current simulated rainfall conditions, there is the limitation such as raininess modulability is poor, rainfall distribution range large, flow uncontrollability, seriously constrain simulation acid precipitation to the test accuracy of Rock And Soil corrosive property.
Summary of the invention
A kind of indoors artificial is the object of the present invention is to provide to simulate acid precipitation test unit, effectively can simulate the singularity of acid precipitation, the strong modulability of solution prior art moderate rain is poor, rainfall distribution range large, the problem of flow uncontrollability, realize the course of reaction of acid precipitation from Rock And Soil surface to Rock And Soil inside, the deterioration research of corroding lower Rock And Soil physico mechanical characteristic for acid precipitation and solution provides data.
A kind of indoors artificial simulation acid precipitation test unit, it is characterized in that, comprise: for hydrodynamic apparatus A, air generation plants B, rain test device C and fluid scavenging apparatus D, aqueduct, wireway, mozzle and drainpipe, described aqueduct water inlet is connected with for hydrodynamic apparatus A, described aqueduct water delivering orifice is connected with rain test device C, the inlet end of described wireway is connected with air generation plants B, the outlet side of described wireway is connected with rain test device C, the endpiece of described mozzle is connected with fluid scavenging apparatus D, the entrance point of described mozzle is connected with rain test device C, described drainpipe water inlet end is connected with rain test device C, described drainpipe water side is connected with fluid scavenging apparatus D.
Further, described rain test device C comprises: bracing frame, rainfall atomizer and test flume, support frame as described above is by upper ledge, lower frame, column, cross bar, threeway threaded connector and turning threaded connector are formed, described cross bar is fixed on the top of bracing frame by threeway threaded connector, described column, upper ledge and lower frame weld together, described rainfall atomizer is fixed on cross bar, described test flume is positioned on lower frame, test flase floor and geotextile is placed with bottom described test flume, the entrance point of mozzle is connected with experiment flase floor, described mozzle covers by geotextile, the bonding circle poly (methyl methacrylate) plate of described test flume upper side frame is as drainage trough, described drainage trough fixes a drainpipe, the water delivering orifice of described aqueduct and the outlet side of wireway are connected to rainfall atomizer both sides.
Further, the described hydrodynamic apparatus A that supplies comprises: water butt, voltage stabilizing water pump, pressure regulator valve, tensimeter, flowmeter and screen pack, described voltage stabilizing water pump, pressure regulator valve, tensimeter is connected along water inlet direction by aqueduct successively with flowmeter, described aqueduct water inlet is connected with water butt, and described aqueduct water inlet is provided with screen pack.
Further, described air generation plants B is air compressor.
Further, fluid scavenging apparatus D comprises: measuring cup, gathering barrel and screen pack, and the liquid outlet of described mozzle is provided with screen pack, and the liquid outlet of mozzle is connected with measuring cup, and the water side of described drainpipe is connected with gathering barrel.
Further, the side of support frame as described above is provided with barriers, and the base of described barriers is fixed in the drainage trough of test flume.
Further, the inside of support frame as described above is provided with active clapboard.
Further, described barriers is rain-proof cloth.
Further, described test flume floorage is less than lower frame area.
Further, described aqueduct and wireway colligation are on bracing frame.
The invention has the beneficial effects as follows:
The present invention can collect runoff and invalid rainfall flow, calculates effective rainfall flow.Device is light, is easy to dismounting and assembling.
Accompanying drawing explanation
Fig. 1 is the structural representation of apparatus of the present invention.
Fig. 2 is support frame structure schematic diagram of the present invention.
In figure, symbol description is specific as follows:
1-water butt, 2-voltage stabilizing water pump, 3-pressure regulator valve, 4-tensimeter, 5-flowmeter, 6-air compressor, 7-aqueduct, 8-wireway, 9-rainfall atomizer, 10-bracing frame, 11-test flume, 12-tests flase floor, 13-barriers, 14-mozzle, 15-measuring cup, 16-drainpipe, 17-gathering barrel, 18-screen pack, 19-column, 20-upper ledge, 21-lower frame, 22-cross bar, 23-threeway threaded connector, 24-turning threaded connector, 25-geotextile.
Embodiment
Below in conjunction with embodiment and accompanying drawing, describe technical scheme of the present invention in detail.
As depicted in figs. 1 and 2, a kind of indoors artificial simulation acid precipitation test unit, comprise: for hydrodynamic apparatus A, air generation plants B, rain test device C and fluid scavenging apparatus D, aqueduct 7, wireway 8, mozzle 14 and drainpipe 16, described aqueduct 7 water inlet is connected with for hydrodynamic apparatus A, described aqueduct 7 water delivering orifice is connected with rain test device C, the inlet end of described wireway 8 is connected with air generation plants B, the outlet side of described wireway 8 is connected with rain test device C, the endpiece of described mozzle 14 is connected with fluid scavenging apparatus D, the entrance point of described mozzle 14 is connected with rain test device C, described drainpipe 16 water inlet end is connected with rain test device C, described drainpipe 16 water side is connected with fluid scavenging apparatus D.
Wherein, described rain test device C comprises: bracing frame 10, rainfall atomizer 9 and test flume 11, support frame as described above 10 is by upper ledge 20, lower frame 21, column 19, cross bar 22, threeway threaded connector 23 and turning threaded connector 24 are formed, described cross bar 22 is fixed on the top of bracing frame 10 by threeway threaded connector 23, described column 19, upper ledge 20 and lower frame 21 weld together, described rainfall atomizer 9 is fixed on cross bar 22, described test flume 11 is positioned on lower frame 21, test flase floor 12 and geotextile 25 is placed with bottom described test flume 11, the entrance point of mozzle 14 is connected with experiment flase floor 12, described mozzle 14 covers by geotextile 25, prevent the solid matters such as slag that fall of Rock And Soil from entering mozzle and blocking screen pack, the bonding circle poly (methyl methacrylate) plate of described test flume 11 upper side frame is as drainage trough, described drainage trough fixes a drainpipe 16, the water delivering orifice of described aqueduct 7 and the outlet side of wireway 8 are connected to rainfall atomizer 9 both sides, the side of support frame as described above 10 is provided with barriers 13, the base of described barriers 13 is fixed in the drainage trough of test flume 11, the inside of support frame as described above 10 is provided with active clapboard, described test flume 11 floorage is less than lower frame area, be convenient to the pull-out of test flume 11 or push, described aqueduct 7 and wireway 8 colligation are on bracing frame 10, , the use of described acid rain atomizer 9 more effectively can simulate the corrosivity effect of acid precipitation.As preferably, bracing frame 10 adopts stainless pipe to make.As preferably, barriers 13 adopts rain-proof cloth.
Wherein, the described hydrodynamic apparatus A that supplies comprises: water butt 1, voltage stabilizing water pump 2, pressure regulator valve 3, tensimeter 4, flowmeter 5 and screen pack 18, described voltage stabilizing water pump 2, pressure regulator valve 3, tensimeter 4 is connected along water inlet direction by aqueduct 7 successively with flowmeter 5, and described aqueduct 7 water inlet is connected with water butt 1, described aqueduct 7 water inlet is provided with screen pack 18, as preferably, described water butt 1 adopts corrosion resistance organic glass to make, and can store the water body in acid precipitation source of different PH, various combination form.
Wherein, described air generation plants B is air compressor 6.
Wherein, fluid scavenging apparatus D comprises: measuring cup 15, gathering barrel 17 and screen pack 18, the liquid outlet of described mozzle 14 is provided with screen pack 18, the liquid outlet of mozzle 14 is connected with measuring cup 15, the water side of described drainpipe 16 is connected with gathering barrel 17, as preferably, gathering barrel 17 surface has scale to indicate, and can conveniently observe.
During work, first open air compressor 6, open voltage stabilizing water pump 2 and pressure regulator valve 3 again, water body in water butt 1 is delivered to rainfall atomizer 9, described rainfall atomizer 9 both sides connect the water delivering orifice of aqueduct 7 and the outlet side of wireway 8 respectively, and the air with pressure makes water body eject from shower nozzle, ensure that the homogeneity of rainfall, meet the potent fruit of light rain, the atomization of rainfall simultaneously better can realize the corrosivity effect of acid precipitation.The water body of atomization is from rainfall atomizer 9 sprays, and the base due to barriers 13 is fixed in the drainage trough of test flume, and four sides of bracing frame 10 are blocked part 13 and close anti-water-stop body and outwards splash.
The inside of support frame as described above is provided with active clapboard, and test flume 11 can be separated into different separate space by active clapboard, can place different samples, realize the demand that different sample carries out testing simultaneously in different separate space.
Test flase floor 12 and geotextile 25 is placed with bottom described test flume 11, the entrance point of mozzle 14 is connected with experiment flase floor 12, described mozzle 14 covers by geotextile 25, prevent the solid matters such as slag that fall of Rock And Soil from entering mozzle and blocking screen pack, the bonding circle poly (methyl methacrylate) plate of described test flume 11 upper side frame is as drainage trough, described drainage trough fixes a drainpipe 16, achieve and collect runoff and invalid rainfall flow, calculate the function of effective rainfall flow.
Claims (10)
1. an indoors artificial simulation acid precipitation test unit, it is characterized in that: comprising: for hydrodynamic apparatus A, air generation plants B, rain test device C and fluid scavenging apparatus D, aqueduct (7), wireway (8), mozzle (14) and drainpipe (16), described aqueduct (7) water inlet is connected with for hydrodynamic apparatus A, described aqueduct (7) water delivering orifice is connected with rain test device C, the inlet end of described wireway (8) is connected with air generation plants B, the outlet side of described wireway (8) is connected with rain test device C, the endpiece of described mozzle (14) is connected with fluid scavenging apparatus D, the entrance point of described mozzle (14) is connected with rain test device C, described drainpipe (16) water inlet end is connected with rain test device C, described drainpipe (16) water side is connected with fluid scavenging apparatus D.
2. a kind of indoors artificial simulation acid precipitation test unit according to claim 1, it is characterized in that: described rain test device C comprises: bracing frame (10), rainfall atomizer (9) and test flume (11), support frame as described above (10) is by upper ledge (20), lower frame (21), column (19), cross bar (22), threeway threaded connector (23) and turning threaded connector (24) are formed, described cross bar (22) is fixed on the top of bracing frame (10) by threeway threaded connector (23), described column (19), upper ledge (20) and lower frame (21) weld together, described rainfall atomizer (9) is fixed on cross bar (22), described test flume (11) is positioned on lower frame (21), described test flume (11) bottom is placed with test flase floor (12) and geotextile (25), the entrance point of mozzle (14) is connected with experiment flase floor (12), described mozzle (14) covers by geotextile (25), the bonding circle poly (methyl methacrylate) plate of described test flume (11) upper side frame is as drainage trough, described drainage trough fixes a drainpipe (16), the water delivering orifice of described aqueduct (7) and the outlet side of wireway (8) are connected to rainfall atomizer (9) both sides.
3. a kind of indoors artificial simulation acid precipitation test unit according to claim 1, it is characterized in that: the described hydrodynamic apparatus A that supplies comprises: water butt (1), voltage stabilizing water pump (2), pressure regulator valve (3), tensimeter (4), flowmeter (5) and screen pack (18), described voltage stabilizing water pump (2), pressure regulator valve (3), tensimeter (4) is connected along water inlet direction by aqueduct (7) successively with flowmeter (5), described aqueduct (7) water inlet is connected with water butt (1), described aqueduct (7) water inlet is provided with screen pack (18).
4. a kind of indoors artificial simulation acid precipitation test unit according to claim 1, is characterized in that: described air generation plants B is air compressor (6).
5. a kind of indoors artificial simulation acid precipitation test unit according to claim 1, it is characterized in that: fluid scavenging apparatus D comprises: measuring cup (15), gathering barrel (17) and screen pack (18), the liquid outlet of described mozzle (14) is provided with screen pack (18), the liquid outlet of mozzle (14) is connected with measuring cup (15), and the water side of described drainpipe (16) is connected with gathering barrel (17).
6. a kind of indoors artificial simulation acid precipitation test unit according to claim 2, it is characterized in that: the side of support frame as described above (10) is provided with barriers (13), and the base of described barriers (13) is fixed in the drainage trough of test flume (11).
7. a kind of indoors artificial simulation acid precipitation test unit according to claim 2, is characterized in that: described barriers (13) is rain-proof cloth.
8. a kind of indoors artificial simulation acid precipitation test unit according to claim 2 or 6, is characterized in that: the inside of support frame as described above (10) is provided with active clapboard.
9. a kind of indoors artificial simulation acid precipitation test unit according to claim 2, is characterized in that: described test flume (11) floorage is less than lower frame area.
10. a kind of indoors artificial simulation acid precipitation test unit according to claim 2, is characterized in that: described aqueduct (7) and wireway (8) colligation are on bracing frame (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819706.0A CN104535739A (en) | 2014-12-25 | 2014-12-25 | Indoor manual simulation acid rain test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410819706.0A CN104535739A (en) | 2014-12-25 | 2014-12-25 | Indoor manual simulation acid rain test device |
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| CN104535739A true CN104535739A (en) | 2015-04-22 |
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| CN201410819706.0A Pending CN104535739A (en) | 2014-12-25 | 2014-12-25 | Indoor manual simulation acid rain test device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105486486A (en) * | 2015-12-19 | 2016-04-13 | 哈尔滨师范大学 | Lenard effect vertical head fall portion test apparatus |
| CN110907330A (en) * | 2019-12-06 | 2020-03-24 | 西南科技大学 | Artificial rainfall simulation device for phosphogypsum pile |
| CN112730095A (en) * | 2020-12-30 | 2021-04-30 | 长安大学 | Multi-factor coupling simulation test device and method for service performance of permeable pavement |
| CN114624421A (en) * | 2022-05-17 | 2022-06-14 | 四川省公路规划勘察设计研究院有限公司 | Simulation test device for rock landslide induced by strong rainfall |
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| CN105486486A (en) * | 2015-12-19 | 2016-04-13 | 哈尔滨师范大学 | Lenard effect vertical head fall portion test apparatus |
| CN110907330A (en) * | 2019-12-06 | 2020-03-24 | 西南科技大学 | Artificial rainfall simulation device for phosphogypsum pile |
| CN112730095A (en) * | 2020-12-30 | 2021-04-30 | 长安大学 | Multi-factor coupling simulation test device and method for service performance of permeable pavement |
| CN114624421A (en) * | 2022-05-17 | 2022-06-14 | 四川省公路规划勘察设计研究院有限公司 | Simulation test device for rock landslide induced by strong rainfall |
| CN114624421B (en) * | 2022-05-17 | 2022-08-12 | 四川省公路规划勘察设计研究院有限公司 | Simulation test device for inducing rock landslide by strong rainfall |
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Application publication date: 20150422 |