CN104597218B - Groundwater dynamic simulation experiment platform - Google Patents

Groundwater dynamic simulation experiment platform Download PDF

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Publication number
CN104597218B
CN104597218B CN201510081412.7A CN201510081412A CN104597218B CN 104597218 B CN104597218 B CN 104597218B CN 201510081412 A CN201510081412 A CN 201510081412A CN 104597218 B CN104597218 B CN 104597218B
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water
type shell
pipe
box
simulation
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CN104597218A (en
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崔海炜
高业新
张冰
左雪峰
崔浩浩
冯欣
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Institute of Hydrogeology and Environmental Geology CAGS
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Institute of Hydrogeology and Environmental Geology CAGS
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Abstract

The present invention relates to a kind of groundwater dynamic simulation experiment platform, include dynamic analog device, aerator, simulation drench with rain device and middle control computer.The present invention's formation typically descends hydrogeologic element model, by the on-line monitoring to dynamic analog device, underground reservoir process can be entered into by simulating pollution thing from earth's surface, simulating pollution thing in ground water aquifer from region of intake, runoff district is to the Transport And Transformation process of discharge area, the simulation reconstruction of comprehensive Hydrodynamic field, hydrochemical field can be realized, clearly can observe the migration process of medicine in aerated zone soil and water-bearing zone, be convenient to analyse in depth the solute transfer of medicine in aerated zone soil and water-bearing zone and transportion and transformation.The present invention changes the composition of original physical simulating device, structure and principle of work, realize the combination of aeration zone and zone of saturation, the simulation of aerated zone soil unsaturated seepage can not only be met, and there is two dimension and multidimensional flow simulating ability, can in laboratory " truly " reproduce field hydrogeology condition.

Description

Groundwater dynamic simulation experiment platform
Technical field
The present invention relates to a kind of environmental hydrogeology analogue means, specifically a kind of groundwater dynamic simulation experiment platform.
Background technology
Groundwater resource occupy very important status in China's water resource, play irreplaceable effect safeguarding in ecological environment security and economic society sound development etc.But, along with socio-economic development, the sanitary wastewater refuse, industrial waste water refuse, agriculture pollutants etc. of a large amount of unreasonable discharge, and the unordered exploitation of underground water, a large amount of pollutant is caused to enter groundwater environment, cause aerated zone soil and groundwater contamination further serious, cause groundwater environment pollution problem day by day complicated.
Groundwater contamination is the Tough questions that China faces, and controlling and repairing groundwater contamination is one of important process of water conservation.Unsaturated soil structure is complicated, pollutant is by the effects such as current extremely slowly downward Transport And Transformation, therefore aeration zone is passage of contaminants, also be pollutant storage area, cause pollutant to enter water-bearing zone, and it is all relatively slower to move in water-bearing zone, pollutes and occurs gradually often, after finding groundwater contamination, determine that pollution source also can not show a candle to surface water so easy.Therefore, for many years, numerous researcher constantly carries out the scientific research of groundwater contamination control, and explore this type of problem in science and must rely on corresponding simulated groundwater environmental experiment device, groundwater dynamic analogue means therefore reasonable in design becomes is engaged in groundwater contamination repairing research hot issue.
Research finds, there is following shortcoming in current underground water physical simulating device: first, functionally see that existing analogue means is mostly unilateral for aeration zone or water-bearing zone, lack the organic assembling device of aeration zone and zone of saturation two aspect analog functuion, thus lack pollutant and enter zone of saturation by way of analog monitoring function from aeration zone, contaminant transportation conversion process can not be caught from whole circulation process, cause analogue means to lack globality; Secondly, from effect be box-type shell comparatively simulate sand post more can " truly " reaction hydrogeological condition, possible evade boundary effect greatlyr, and large-scale experiment field, field box-type shell seems more convenient relatively, and reduced investment, time are short, with strong points, can experimentally design needs to change packing material and the different medicine of filling carries out repeating to test; Finally, from realistic meaning, field original position carries out experiment and data acquisition is often difficult to realize.
Summary of the invention
Object of the present invention is just to provide a kind of groundwater dynamic simulation experiment platform, to solve the problem of existing analogue means function singleness and simulate effect difference.
The present invention is achieved in that a kind of groundwater dynamic imitative experiment platform, includes dynamic analog device, aerator, simulation drench with rain device and middle control computer;
The main body of described dynamic analog device is rectangular box-type shell, and described box-type shell adopts poly (methyl methacrylate) plate to process, and peripheral employing stainless steel square tube is reinforced and supported; In the front panel of described box-type shell and the inner side of squab panel, the spacing of 100mm is provided with some upright spill draw-in grooves, the lower edge of described draw-in groove contacts with the base plate of described box-type shell, the upper edge of described draw-in groove and the suitable for reading concordant of described box-type shell; The porous water dispensing board of a grafting rectangle between two described draw-in grooves that the front panel of described box-type shell is relative with the position on squab panel, the plate face of described porous water dispensing board is densely covered with the overcurrent eyelet that aperture is 2mm, the lower edge of described porous water dispensing board contacts with the base plate of described box-type shell, the upper edge of described porous water dispensing board and the suitable for reading mutually concordant of described box-type shell;
The end side wallboard of described box-type shell is connected to some water inlets that layering is arranged, the sidewall paneling of the other end of described box-type shell is connected to some water delivering orifices that layering is arranged, described water inlet and described water delivering orifice are made by the plexi-glass tubular that aperture is 8mm, in matrix distribution on the sidewall paneling of described box-type shell;
What the front panel and squab panel of described box-type shell be respectively arranged with some layerings arrange is the thief hatch that 8mm plexi-glass tubular is made by aperture, described thief hatch is distributed on front panel corresponding to the separated each sample space of described porous water dispensing board or squab panel, each described thief hatch is provided with sampler or is sealed with sealing plug, the front panel of described box-type shell and the two ends of squab panel be respectively arranged with in longitudinal arrangement one to arrange by aperture be the overflow vent that 8mm plexi-glass tubular is made, at described overflow vent place, sampler is installed or is connected to the run-down pipe being with operation valve,
The base plate of described box-type shell has some draining mudholes, each draining mudhole is connected to a draining discharge pipeline, the pvc pipe of the effective diameter 40mm of described draining spoil disposal is made, stainless steel gauze is sealed with at the inner orifice place of described draining mudhole, described draining discharge pipeline is connected to draining spoil disposal operation valve, and the lower end of all described draining discharge pipelines is received on a draining spoil disposal house steward altogether;
Be provided with chassis in the bottom shelf of described box-type shell, described chassis is connected by some caster support; A collapsible rectangular hanger is respectively connected at the two ends on described chassis, adjustable for height water tank laid by described suspension bracket, a described water tank is connected on the described water inlet of described box-type shell by connecting pipeline, and water tank described in another is connected on the described water delivering orifice of described box-type shell by connecting pipeline; Described connecting pipeline is separately installed with solenoid valve and flowmeter, and the data line on described flowmeter is connected on described middle control computer;
In described box-type shell by the anaerobic condition be filled with in the separated each sample space of described porous water dispensing board for simulating hydrogeologic element, monitoring/medicine feeding hole pipe that some pvc pipes being 20mm by caliber are uprightly made is plugged with respectively in each sample space, the bottom of described monitoring/medicine feeding hole pipe contacts with the base plate of described box-type shell, the top of described monitoring/medicine feeding hole pipe and the suitable for reading mutually concordant of described box-type shell; On the tube wall of described monitoring/medicine feeding hole pipe, circumferentially symmetry has four row apertures is the eyelet of 2mm, and often the distance between the upper and lower of row eyelet is 10mm, is enclosed with stainless steel gauze in the outside of described monitoring/medicine feeding hole pipe; Described monitoring/medicine feeding hole pipe inserts wherein for the monitoring probe of on-Line Monitor Device, described monitoring probe is one or several in water quality monitoring probe, water level monitoring probe, pH monitoring probe, oxidation-reduction potential monitoring probe, monitored conductivity probe, temperature monitoring probe and dissolved oxygen DO monitoring probe, the data line of described monitoring probe is connected on described middle control computer, to transmit and to process gathered experiment detection signal;
The suitable for reading of described box-type shell is provided with the gland bonnet that can start or fasten;
Described aerator comprises air supply header, gas-distribution pipe and aeration tube; Described aeration tube has double pore vertically on the pvc pipe that caliber is 10mm, and the aperture of each pore is 1mm, and the pitch-row of every vent port is 5mm, and the center of circle angle of two vent ports is 45 °; Described aeration tube be horizontally set in described box-type shell by the bottom in the separated each sample space of described porous water dispensing board, one end of described aeration tube is connected on the described gas-distribution pipe that is plugged in described box-type shell in each sample space, the upper end of described gas-distribution pipe is connected on the described air supply header that is arranged at above described box-type shell, gas-distribution pipe described in every root is equipped with aeration control valve, described air supply header, by fan blower or high-pressure nitrogen bottle air feed, forms aeration by regulating and controlling described aeration control valve;
The described simulation device that drenches with rain comprises water main, sparge pipe, coiled pipe and the pipe that drenches with rain, the described pipe that drenches with rain comprises a distributive pipe and is vertically connected on the some showers on described distributive pipe, the pvc pipe of described shower to be caliber be 10mm, shower has double draining hole vertically, the aperture in each water hole is 1mm, the pitch-row of every osculum is 5mm, and the center of circle angle of two osculums is 45 °; The described pipe that drenches with rain is divided into some groups, shower is wherein horizontally set on the top of described box-type shell, the pipe that often drenches with rain described in group is connected to the lower end of described sparge pipe by described coiled pipe, the upper end of the described sparge pipe of each group is received on described water main altogether, and sparge pipe described in every root is equipped with the operation valve that drenches with rain; Described water main is supplied water by water pump or running water pipe, forms rainfall simulation by the operation valve that drenches with rain described in regulating and controlling.
Described middle control computer, by the flow of inlet water of described dynamic analog device and the regulation and control of hydraulic pressure, realizes the flow of underground water in the anaerobic condition to hydrogeologic element, the isoparametric simulation of flow velocity and regulation and control.
Described middle control computer, by being arranged at the information acquisition of the monitoring probe of various monitoring device in described dynamic analog device, realizes the simulation of hydrodynamic field, Groundwater chemical fields in the anaerobic condition to hydrogeologic element in described dynamic analog device.
The present invention, by adding medicine in the described monitoring/medicine feeding hole pipe on described dynamic analog device, realizes the POLLUTION SIMULATION of underground water in the anaerobic condition of hydrogeologic element in described dynamic analog device; By adding medicine in the described water main of the device that drenches with rain in described simulation, the POLLUTION SIMULATION that the anaerobic condition realizing hydrogeologic element in described dynamic analog device produces underground water by Acid Rain Effect.
The present invention forms a kind of underground hydrological geologic unit model, be equipped with perfect on-line monitoring system, underground reservoir process can be entered into by simulating pollution thing from earth's surface, simulating pollution thing in ground water aquifer from region of intake, runoff district is to the Transport And Transformation process of discharge area, the simulation reconstruction of comprehensive Hydrodynamic field, hydrochemical field can be realized, clearly can observe the migration process of medicine in aerated zone soil and water-bearing zone, be convenient to analyse in depth the solute transfer of medicine in aerated zone soil and water-bearing zone and transportion and transformation.
The present invention changes the composition of original physical simulating device, structure and principle of work, realize the combination of aeration zone and zone of saturation, the simulation of aerated zone soil unsaturated seepage can not only be met, and there is two dimension and multidimensional flow simulating ability, can in laboratory " truly " reproduce field hydrogeology condition.The present invention can realize medicine at aeration zone to the solute transfer of zone of saturation and the full-scope simulation monitoring function in Migration In Aquifer conversion, and analog platform data acquisition is simple, timely, effective, online simulation can be realized, relative field condition measuring accuracy is higher, data acquisition is more accurate, improves the fidelity of simulated experiment, reduces the cost of simulated experiment, expand the universality of analogue means, therefore purposes is also more extensive.
Structure of the present invention is simple, and measurement data is accurate, of many uses; Reparative experiment design can be carried out for different renovation technique (damped method etc. under original position aeration process, in situ chemical oxidation technology, biology in situ recovery technique, permeable reaction wall technique, soil in-situ drip washing renovation technique, Pump-and-Treat technique, monitoring condition); Can the simulated experiment of simulate for lateral Contaminants Transport, for the simulated experiment of vertical pollutant, the discussion of water quality evolution mechanism can be can be used for, also can be used for the parametric measurements such as dispersion coefficient and research rainfall to the simulated experiment of pollutant Transport And Transformation in aeration zone.The present invention utilizes waterpower regeneration principle, carries out system regeneration for box-type shell block part, can extension fixture serviceable life greatly, does not cause secondary pollution simultaneously, be with a wide range of applications and marketable value to groundwater environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the plan structure schematic diagram of box-type shell.
Fig. 3 is the floor plan of pipe of drenching with rain.
Fig. 4 is the floor plan of aeration tube.
In figure: 1, box-type shell, 2, water inlet, 3, overflow vent, 4, aeration control valve, 5, drench with rain pipe, 6, drench with rain operation valve, 7, coiled pipe, 8, gas-distribution pipe, 9, thief hatch, 10, water delivering orifice, 11, draw-in groove, 12, chassis, 13, draining discharge pipeline, 14, draining spoil disposal operation valve, 15, castor, 16, suspension bracket, 17, water main, 18, sparge pipe, 19, air supply header, 20, draining spoil disposal house steward, 21, monitoring/medicine feeding hole pipe, 22, draining mudhole, 23, porous water dispensing board, 24, aeration tube, 25, the dosing mouth of pipe.
Embodiment
Groundwater dynamic imitative experiment platform of the present invention includes dynamic analog device, aerator, simulation drench with rain device and middle control computer etc. four part is the structural representation of other parts of the present invention except middle control computer shown in accompanying drawing.
As shown in Figure 1, the main body of described dynamic analog device is rectangular box-type shell 1, and it is that poly (methyl methacrylate) plate processes that box-type shell 1 adopts 10mm thick, reinforces and support in the periphery of poly (methyl methacrylate) plate by stainless steel square tube.In the front panel of box-type shell 1 and the inner side of squab panel, the spacing of 100mm is provided with some upright spill draw-in grooves (Fig. 2), the lower edge of draw-in groove 11 contacts with the base plate of box-type shell 1, the upper edge of draw-in groove 11 and the suitable for reading concordant of box-type shell 1.The porous water dispensing board 23 of a grafting rectangle between two draw-in grooves 11 that the front panel of box-type shell 1 is relative with the position on squab panel, the plate face of porous water dispensing board 23 is densely covered with overcurrent eyelet, the aperture of overcurrent eyelet is 2mm, and pitch-row is 4mm, distributes in plum blossom battle array.The lower edge of porous water dispensing board 23 contacts with the base plate of box-type shell 1, the upper edge of porous water dispensing board 23 and the suitable for reading mutually concordant of box-type shell 1.
The right end sidewalls plate of box-type shell 1 is connected to point five layers of water inlet 2 arranged, and every layer of water inlet has at least two, forms matrix form distribution.The left end side wallboard of box-type shell 1 is connected to point five layers of water delivering orifice 10 arranged, and every layer of water delivering orifice has at least two, forms matrix form distribution.Water inlet 2 and water delivering orifice 10 are made by the plexi-glass tubular that aperture is 8mm.Dynamic analog device is so just made to form the region of intake of underground water, runoff district and discharge area from right to left successively.
In Fig. 1, the front panel and squab panel of box-type shell 1 are respectively arranged with point five layers of thief hatch arranged 9, the plexi-glass tubular that thief hatch 9 is 8mm by aperture is made, and is distributed on front panel corresponding to the separated each sample space of porous water dispensing board 23 or squab panel.Each thief hatch 9 is provided with sampler or is sealed with sealing plug.Be respectively arranged with the row overflow vent 3 in longitudinal arrangement in the front panel of box-type shell 1 and the two ends, left and right of squab panel, overflow vent is that 8mm plexi-glass tubular is made by aperture.At overflow vent 3 place, sampler is installed or is connected to the run-down pipe being with operation valve.
In Fig. 1, the base plate of box-type shell 1 has eight draining mudhole 22(Fig. 2), each draining mudhole 22 is connected to a draining discharge pipeline 13, draining discharge pipeline 13 pvc pipe of diameter 40mm is made, stainless steel gauze is sealed with at the inner orifice place of draining mudhole, draining discharge pipeline 13 is connected to draining spoil disposal operation valve 14, and the lower end of all draining discharge pipelines 13 is received on a horizontal draining spoil disposal house steward 20 altogether.
Be provided with chassis 12 in the bottom shelf of box-type shell 1, chassis 12 is by 6-8 castors 15 support and connection.A collapsible rectangular hanger 16 is respectively connected at the two ends on chassis 12, suspension bracket 16 is laid adjustable for height water tank (not shown), the water tank of right-hand member is connected to by connecting pipeline on the water inlet 2 of box-type shell 1 right-hand member, and the water tank of left end is connected on the water delivering orifice 10 of box-type shell 1 left end by connecting pipeline.Connecting pipeline is separately installed with solenoid valve and flowmeter, and the data line on flowmeter is connected on middle control computer.
In box-type shell 1 by the anaerobic condition be filled with in the separated each sample space of porous water dispensing board 23 for simulating hydrogeologic element, in each sample space, be plugged with some monitoring/medicine feeding hole pipes 21 uprightly respectively, the pvc pipe that monitoring/medicine feeding hole pipe 21 is 20mm by caliber is made.The bottom of monitoring/medicine feeding hole pipe 21 contacts with the base plate of box-type shell 1, the top of monitoring/medicine feeding hole pipe 21 and the suitable for reading mutually concordant of box-type shell 1.On the tube wall of monitoring/medicine feeding hole pipe 21, circumferentially symmetry has four row apertures is the eyelet of 2mm, and often the distance between the upper and lower of row eyelet is 10mm.Stainless steel gauze is enclosed with, to prevent silt shutoff eyelet in the outside of monitoring/medicine feeding hole pipe 21.Each monitoring/medicine feeding hole pipe 21 inserts wherein for the monitoring probe in the various on-Line Monitor Device of simulated experiment, described monitoring probe is one or several in the multiple professional monitoring probes such as water quality monitoring probe, water level monitoring probe, pH monitoring probe, oxidation-reduction potential monitoring probe, monitored conductivity probe, temperature monitoring probe and dissolved oxygen DO monitoring probe, can one or several monitoring probes of grafting in a monitoring/medicine feeding hole pipe 21.The data line of monitoring probe is connected on middle control computer, to transmit and to process gathered experiment detection signal.
The present invention is also shaped with a capping box-type shell 1 gland bonnet (not shown) suitable for reading, and gland bonnet can be by gemel connection on box-type shell 1, also can be independent setting, in use suitable for reading to box-type shell 1 of buckle closure.
As Figure 1 and Figure 4, described aerator comprises the parts such as air supply header 19, gas-distribution pipe 8 and aeration tube 24.Aeration tube 24 has double pore vertically on the pvc pipe that caliber is 10mm, and the aperture of each pore is 1mm, and the pitch-row of every vent port is 5mm, and the center of circle angle of two vent ports is 45 °.Aeration tube 24 be horizontally set in box-type shell 1 by the bottom (Fig. 4) in the separated each sample space of porous water dispensing board 23, one end of aeration tube 24 is connected on gas-distribution pipe 8, gas-distribution pipe 8 is plugged on the edge (Fig. 4) of each sample space in box-type shell 1, and the upper end of gas-distribution pipe 8 is connected on the air supply header 19 that is arranged at above box-type shell 1 (Fig. 1).Every root gas-distribution pipe 8 is equipped with aeration control valve 4, and air supply header 19 is connected with fan blower or high-pressure nitrogen bottle, to provide air or nitrogen, under the regulation and control of aeration control valve 4, passes into the air in the water-bearing media in box-type shell 1 or nitrogen formation aeration.
As shown in Figure 1, Figure 3, the described simulation device that drenches with rain is arranged on the top of described dynamic analog device, includes water main 17, sparge pipe 18, coiled pipe 7 and the parts such as pipe 5 that drench with rain.The pipe 5 that drenches with rain comprises a distributive pipe and some showers, and some showers be arranged in parallel, and end is connected with distributive pipe is vertical, forms one group of affixed pipe that drenches with rain.Shower is that the pvc pipe being 10mm by caliber is made, shower has double draining hole vertically, and the aperture in each water hole is 1mm, and the pitch-row of every osculum is 5mm, the center of circle angle of two osculums is 45 °, and the symcenter face of two osculums is arranged vertically downward.The Guan Yousan group that drenches with rain in Fig. 3, is horizontally set on the top of box-type shell 1, and often the group pipe 5 that drenches with rain is connected to the lower end of sparge pipe 18 by a coiled pipe 7, to drench with rain the rational height of pipe suitably to adjust often group; The upper end of sparge pipe 18 is received on a horizontal water main 17 altogether, and every root sparge pipe 18 is equipped with the operation valve 6 that drenches with rain, and the operation valve 6 that drenches with rain is for solenoid valve.Water main 17 connects with water pump or tap water pipe network, is supplied water by water pump or running water pipe, and by regulating and controlling to drench with rain, operation valve 6 forms rainfall simulation.Water main 17 has a dosing mouth of pipe 25(Fig. 1), the mouth of pipe is provided with shutoff, can dosing inwards after opening, by the dripping effect of rainfall, medicine is brought in box-type shell 1, thus the pollution of area source diffusion simulations of continuation can be formed in box-type shell 1.Simulate the device that drenches with rain is lifted on box-type shell 1 top by crane, by the adjustment of crane, make the height of shower distance box-type shell 1 end face between 100 ~ 500mm, also can experimentally require to carry out left and right translation, translation distance can at about 400mm simultaneously.The drench with rain effect of device of simulation is rainfall in simulating natural environment, can simulate the rainfall state occurred in the various physical environments such as light rain, moderate rain, heavy rain, heavy rain.
Middle control computer is a part for whole simulation experiment platform, and its function is real-time, automatic online acquisition and the water cycle process data processing various Sensor monitoring; By the regulation and control to dynamic analog device flow of inlet water and hydraulic pressure, realize the flow of underground water in the anaerobic condition to hydrogeologic element, the isoparametric simulation of flow velocity and regulation and control.
Middle control computer, by being arranged at the information acquisition of the monitoring probe of various monitoring device in dynamic analog device, realizes the simulation of hydrodynamic field, Groundwater chemical fields in the anaerobic condition to hydrogeologic element in dynamic analog device.
Groundwater dynamic simulation experiment platform of the present invention is laid complete, can start control computer and the various parameters of various supervising device to water cycle process in utilization and carry out gathering in real time, automatically, and observe underground water Transport And Transformation and delta data.For concrete research purpose, different experimental study schemes can be set simultaneously.The device that drenches with rain is simulated in utilization, water-level control apparatus can realize the different water cycle process of nature simulation and reproduction, thus be different water cycle process research services.
The present invention, by adding medicine in the monitoring/medicine feeding hole pipe 21 on dynamic analog device, realizes the POLLUTION SIMULATION of underground water in the anaerobic condition of hydrogeologic element in dynamic analog device; By adding medicine (as sulfuric acid, nitric acid etc.) in the water main 17 of the device that drenches with rain in simulation, realize the rainfall of simulation containing the special contamination factor (acid rain), the POLLUTION SIMULATION that the anaerobic condition realizing hydrogeologic element in dynamic analog device produces underground water by Acid Rain Effect.
Packing material in dynamic analog device is selected in selected study area to fetch earth a little, carries out layering fetch earth according to experiment demand, and filling process should carry out back-filling in layers in strict accordance with the order that fetches earth; The packing material in water-bearing zone mainly adopts grating river sand to fill, particle diameter 0.1 ~ 2.0, infiltration coefficient at about 20m/d, the simulation of diving under water for typical case with the water realized in dynamic analog device in water-bearing zone.The packing material of aeration zone is mainly adopting sandy silt, and particle diameter is at 0.005 ~ 0.075mm, and infiltration coefficient is about 0.5m/d, to realize the simulation of typical aeration zone in dynamic analog device.
Drench with rain device and water lev el control of simulation in the present invention directly to supply water control as adopted tap water, then the device preventing aqueous reflux must be installed in vibration means for main pipe for supplying water and box-type shell water inlet pipe front end, avoids the sewage backflow when tap water cut-off or tap water supply pressure surge and pollutes tap water pipe network system.
The main material that the present invention and experiment material and drug contact position adopt is made up of high grade of transparency organic glass, pvc pipe and 316 stainless steels, these materials have stronger corrosion resistance, its physics, stable chemical performance, do not disengage material, improper due to the materials'use of equipment own in experimentation and artificial pollution that is that cause can be avoided.

Claims (4)

1. a groundwater dynamic simulation experiment platform, is characterized in that, includes dynamic analog device, aerator, simulation drench with rain device and middle control computer;
The main body of described dynamic analog device is rectangular box-type shell, and described box-type shell adopts poly (methyl methacrylate) plate to process, and peripheral employing stainless steel square tube is reinforced and supported; In the front panel of described box-type shell and the inner side of squab panel, the spacing of 100mm is provided with some upright spill draw-in grooves, the lower edge of described draw-in groove contacts with the base plate of described box-type shell, the upper edge of described draw-in groove and the suitable for reading concordant of described box-type shell; The porous water dispensing board of a grafting rectangle between two described draw-in grooves that the front panel of described box-type shell is relative with the position on squab panel, the plate face of described porous water dispensing board is densely covered with the overcurrent eyelet that aperture is 2mm, the lower edge of described porous water dispensing board contacts with the base plate of described box-type shell, the upper edge of described porous water dispensing board and the suitable for reading mutually concordant of described box-type shell;
The end side wallboard of described box-type shell is connected to some water inlets that layering is arranged, the sidewall paneling of the other end of described box-type shell is connected to some water delivering orifices that layering is arranged, described water inlet and described water delivering orifice are made by the plexi-glass tubular that aperture is 8mm, in matrix distribution on the sidewall paneling of described box-type shell;
What the front panel and squab panel of described box-type shell be respectively arranged with some layerings arrange is the thief hatch that 8mm plexi-glass tubular is made by aperture, described thief hatch is distributed on front panel corresponding to the separated each sample space of described porous water dispensing board or squab panel, each described thief hatch is provided with sampler or is sealed with sealing plug, the front panel of described box-type shell and the two ends of squab panel be respectively arranged with in longitudinal arrangement one to arrange by aperture be the overflow vent that 8mm plexi-glass tubular is made, at described overflow vent place, sampler is installed or is connected to the run-down pipe being with operation valve,
The base plate of described box-type shell has some draining mudholes, each draining mudhole is connected to a draining discharge pipeline, the pvc pipe of the effective diameter 40mm of described draining spoil disposal is made, stainless steel gauze is sealed with at the inner orifice place of described draining mudhole, described draining discharge pipeline is connected to draining spoil disposal operation valve, and the lower end of all described draining discharge pipelines is received on a draining spoil disposal house steward altogether;
Be provided with chassis in the bottom shelf of described box-type shell, described chassis is connected by some caster support; A collapsible rectangular hanger is respectively connected at the two ends on described chassis, adjustable for height water tank laid by described suspension bracket, a described water tank is connected on the described water inlet of described box-type shell by connecting pipeline, and water tank described in another is connected on the described water delivering orifice of described box-type shell by connecting pipeline; Described connecting pipeline is separately installed with solenoid valve and flowmeter, and the data line on described flowmeter is connected on described middle control computer;
In described box-type shell by the anaerobic condition be filled with in the separated each sample space of described porous water dispensing board for simulating hydrogeologic element, monitoring/medicine feeding hole pipe that some pvc pipes being 20mm by caliber are uprightly made is plugged with respectively in each sample space, the bottom of described monitoring/medicine feeding hole pipe contacts with the base plate of described box-type shell, the top of described monitoring/medicine feeding hole pipe and the suitable for reading mutually concordant of described box-type shell; On the tube wall of described monitoring/medicine feeding hole pipe, circumferentially symmetry has four row apertures is the eyelet of 2mm, and often the distance between the upper and lower of row eyelet is 10mm, is enclosed with stainless steel gauze in the outside of described monitoring/medicine feeding hole pipe; Described monitoring/medicine feeding hole pipe inserts wherein for the monitoring probe of on-Line Monitor Device, described monitoring probe is one or several in water quality monitoring probe, water level monitoring probe, pH monitoring probe, oxidation-reduction potential monitoring probe, monitored conductivity probe, temperature monitoring probe and dissolved oxygen DO monitoring probe, the data line of described monitoring probe is connected on described middle control computer, to transmit and to process gathered experiment detection signal;
The suitable for reading of described box-type shell is provided with the gland bonnet that can start or fasten;
Described aerator comprises air supply header, gas-distribution pipe and aeration tube; Described aeration tube has double pore vertically on the pvc pipe that caliber is 10mm, and the aperture of each pore is 1mm, and the pitch-row of every vent port is 5mm, and the center of circle angle of two vent ports is 45 °; Described aeration tube be horizontally set in described box-type shell by the bottom in the separated each sample space of described porous water dispensing board, one end of described aeration tube is connected on the described gas-distribution pipe that is plugged in described box-type shell in each sample space, the upper end of described gas-distribution pipe is connected on the described air supply header that is arranged at above described box-type shell, gas-distribution pipe described in every root is equipped with aeration control valve, described air supply header, by fan blower or high-pressure nitrogen bottle air feed, forms aeration by regulating and controlling described aeration control valve;
The described simulation device that drenches with rain comprises water main, sparge pipe, coiled pipe and the pipe that drenches with rain, the described pipe that drenches with rain comprises a distributive pipe and is vertically connected on the some showers on described distributive pipe, the pvc pipe of described shower to be caliber be 10mm, shower has double draining hole vertically, the aperture in each water hole is 1mm, the pitch-row of every osculum is 5mm, and the center of circle angle of two osculums is 45 °; The described pipe that drenches with rain is divided into some groups, shower is wherein horizontally set on the top of described box-type shell, the pipe that often drenches with rain described in group is connected to the lower end of described sparge pipe by described coiled pipe, the upper end of the described sparge pipe of each group is received on described water main altogether, and sparge pipe described in every root is equipped with the operation valve that drenches with rain; Described water main is supplied water by water pump or running water pipe, forms rainfall simulation by the operation valve that drenches with rain described in regulating and controlling.
2. groundwater dynamic simulation experiment platform according to claim 1, it is characterized in that, described middle control computer, by the flow of inlet water of described dynamic analog device and the regulation and control of hydraulic pressure, realizes the flow of underground water in the anaerobic condition to hydrogeologic element, the simulation of flow parameters and regulation and control.
3. groundwater dynamic simulation experiment platform according to claim 1, it is characterized in that, described middle control computer, by being arranged at the information acquisition of the monitoring probe of various monitoring device in described dynamic analog device, realizes the simulation of hydrodynamic field, Groundwater chemical fields in the anaerobic condition to hydrogeologic element in described dynamic analog device.
4. groundwater dynamic simulation experiment platform according to claim 1, it is characterized in that, by adding medicine in the described monitoring/medicine feeding hole pipe on described dynamic analog device, in described dynamic analog device, realize the POLLUTION SIMULATION of underground water in the anaerobic condition of hydrogeologic element; By adding medicine in the described water main of the device that drenches with rain in described simulation, the POLLUTION SIMULATION that the anaerobic condition realizing hydrogeologic element in described dynamic analog device produces underground water by Acid Rain Effect.
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