CN113532940B - Multifunctional test testing equipment for repairing heterogeneous soil groundwater - Google Patents
Multifunctional test testing equipment for repairing heterogeneous soil groundwater Download PDFInfo
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Abstract
The invention discloses a multifunctional test device for repairing heterogeneous soil groundwater, which belongs to the technical field of in-situ treatment tests, comprises a transparent box body and is characterized in that: still include first flow regulator, second flow regulator, the centrifugal pump, the aeration pump, the intake pipe, inlet tube and outlet pipe, transparent box's front is provided with many sampling tubes, many vertical scales and a horizontal scale, transparent box's the back is provided with many pressure-measuring pipes, the transparent box internal fixation has the outer well of first sieve mesh and the outer well of second sieve mesh with the atmosphere intercommunication, be fixed with the circulation well in the outer well of first sieve mesh, be provided with the aeration well in the outer well of second sieve mesh. The invention can flexibly adjust the parameters of the circulation well and the aeration well, explore the solute and non-aqueous phase migration rule and the pollutant remediation rule, and simulate the hydrodynamic field of the circulation well and the aeration well.
Description
Technical Field
The invention relates to the technical field of in-situ treatment tests, in particular to multifunctional test testing equipment for repairing underground water of heterogeneous soil.
Background
The circulation well and the aeration well are used as heterogeneous soil-underground water pollutant in-situ treatment technologies, are one of hot spot technologies in recent years, and have the characteristics of low economic cost and good treatment effect. But the circulating well and the aeration well still have few test devices for researching the solute and non-aqueous phase migration of the in-situ technology, the parameters of the well process and the remediation effect for treating different homogeneous and heterogeneous soil-underground water conditions in the process of treating pollutants.
Chinese patent publication No. CN 102219293a, published as 2011, 10/19, discloses an improved aeration well for in-situ remediation of polluted groundwater, which is characterized in that an inner well pipe is sleeved in an outer well pipe, the inner well pipe is fixed in the outer well pipe through an upper fixing support and a lower fixing support, the lower part of the inner well pipe is provided with an aeration head, the aeration head is connected with an aeration pump through an aeration pipe and an adjusting valve fixed at the top end of the outer well pipe, the upper part of the outer well pipe is provided with an exhaust hole, the exhaust hole is connected with a polluted gas monitor, the top end of the inner well pipe is lower than the exhaust hole, the lower part of the upper exhaust hole of the outer well pipe is provided with an upper perforated pipe, the top hole of the upper perforated pipe is lower than the inner well pipe, the lower section of the outer well pipe is provided with a lower perforated pipe, the top hole of the lower perforated pipe is higher than the bottom end surface of the inner well pipe, and the bottom end surface of the outer well pipe is in contact with a bottom plate of a polluted groundwater layer.
The patent document discloses an improved aeration well for in situ remediation of contaminated groundwater that achieves reduced lateral diffusion of contaminants by increasing the vertical flow of groundwater. Compared with the existing underground water aeration technology and pumping treatment technology, the technology is simpler, can be continuously operated only by conventional maintenance, improves the repair efficiency, and reduces the repair cost and the maintenance cost. However, the parameters of the aeration well are single in function and cannot be flexibly adjusted, and the method cannot be used for researching the influence factors of the vertical circulation well and the aeration well in the aspect of pollutant remediation, and cannot be used for simulating non-aqueous phase migration and solute migration and simulating the remediation effects of the circulation well and the aeration well under different boundary conditions.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides multifunctional test equipment for repairing underground water in heterogeneous soil.
The invention is realized by the following technical scheme:
the utility model provides a restore many function test equipment of heterogeneous soil groundwater, includes transparent box, its characterized in that: the device comprises a transparent box body, and is characterized by further comprising a first flow regulator, a second flow regulator, a centrifugal pump, an aeration pump, an air inlet pipe, a water inlet pipe and a water outlet pipe, wherein a plurality of sampling pipes, a plurality of vertical scales and a transverse scale are arranged on the front side of the transparent box body, valves are fixed on the sampling pipes, a plurality of pressure measuring pipes are arranged on the back side of the transparent box body, a first groove body provided with a water inlet is arranged on one side of the transparent box body, a second groove body provided with a water outlet is arranged on the other side of the transparent box body, through holes are formed in the side wall of the transparent box body, the transparent box body is respectively communicated with the first groove body and the second groove body, a first sieve mesh outer well and a second sieve mesh outer well which are communicated with the atmosphere are fixed in the transparent box body, a circulating well is fixed in the first sieve mesh outer well and comprises a first circulating pipe, a first connecting pipe and a second circulating pipe, the upper end of the first circulating pipe is a closed end, and a first plug is embedded at the lower end of the first circulating pipe, the lower end of the second circulating pipe is a closed end, a second plug is embedded at the upper end, a plurality of small holes are uniformly distributed on the first circulating pipe and the second circulating pipe, the first circulating pipe is connected with the upper end of the first connecting pipe in a sliding manner, the second circulating pipe is connected with the lower end of the first connecting pipe in a sliding manner, one end of the water inlet pipe is connected with the centrifugal pump, the other end of the water inlet pipe is connected with the first circulating pipe, one end of the water outlet pipe is connected with the centrifugal pump, the other end of the water outlet pipe is connected with the second circulating pipe, the centrifugal pump is electrically connected with the first flow regulator, an aeration well is arranged in the second sieve mesh outer well, the aeration well comprises a third circulating pipe, a second connecting pipe and a fourth circulating pipe, the upper end of the third circulating pipe is a closed end, a third plug is embedded at the lower end of the fourth circulating pipe, a fourth plug is embedded at the upper end of the third circulating pipe and the fourth circulating pipe, and a plurality of small holes are uniformly distributed on the third circulating pipe and the fourth circulating pipe, the upper end sliding connection of third circulating pipe and second connecting pipe, the cover has the sealing washer on the third circulating pipe, and the sealing washer is fixed on the inner wall of second sieve mesh outer well, the middle part parcel of second sieve mesh outer well has the seal membrane, the lower extreme sliding connection of fourth circulating pipe and second connecting pipe, the blind end of fourth circulating pipe are higher than the lower extreme of seal membrane, the one end and the aeration pump of intake pipe are connected, and the other end and the fourth circulating pipe of intake pipe are connected, the aeration pump is connected with second flow regulator electricity.
The length of the first choke plug is longer than that of the first circulating pipe, and the length of the second choke plug is longer than that of the second circulating pipe.
The third plug is longer than the third circulating pipe, and the fourth plug is longer than the fourth circulating pipe.
The sampling tube comprises a hard tube section and a hose section, the hose section is connected with the hard tube section, and the valve is fixed on the hose section.
The vertical scales are bonded on the front face of the transparent box body, the vertical scales are uniformly arranged, the sampling tubes are perpendicularly embedded into the transparent box body, the sampling tubes are uniformly arranged, and the spacing distance between any two rows of adjacent sampling tubes is 8 cm.
And the transverse scale is bonded at the lower part of the transparent box body.
The bottom of the transparent box body is provided with a steel frame support used for placing the transparent box body, and the steel frame support is provided with universal wheels.
The pressure measuring pipes are communicated with the transparent box body, and the pressure measuring pipes are uniformly arranged on the back face of the transparent box body.
The first sieve mesh outer well and the second sieve mesh outer well are both open pore pipelines, the diameter of the first sieve mesh outer well is 12cm, and the diameter of the second sieve mesh outer well is 10 cm.
The transparent box is characterized in that a vertical frame with an I-shaped cross section is arranged on one side of the front surface of the transparent box, and a camera used for recording the test process is mounted on the vertical frame.
The beneficial effects of the invention are mainly shown in the following aspects:
the invention adopts a first sieve mesh outer well and a second sieve mesh outer well to study the influence of well wall effect on repair, adjusts the distance between a first circulating pipe and a second circulating pipe through a first connecting pipe and can be used for studying the influence on the operation of the circulating well, a first flow regulator is used for realizing the adjustment of the circulating flow, an aeration volume of an aeration well is adjusted through a second flow regulator, the invention can be used for studying the influence of the water head rule of the aeration well and the aeration volume on the pollutant removing effect of the aeration well, the distance between the upper circulating pipe and the lower circulating pipe is adjusted through a connecting pipe, further the adjustment of the effective length of the aeration well is realized, the influence of the relative position of the aeration well and the sieve mesh outer well on the pollutant removing effect of the aeration well is studied, solute concentrations and non-aqueous phases at different parts in the working range of the whole circulating well and the aeration well can be monitored and sampled through a sampling pipe, and the leakage of pollutants is simulated, the method is convenient for researching the migration rules of the solute and the non-aqueous phase in the circulation well and the aeration well under the influence of different factors, and as a complete technical scheme, compared with the prior art, the method can flexibly adjust the parameters of the circulation well and the aeration well, thereby being convenient for researching the selection of well processes in different homogeneous and heterogeneous soil and underground water models, researching the hydrodynamic flow fields and the chemical fields of the solute and the non-aqueous phase of the circulation well and the aeration well in different models, and the design parameters of the best removal effect of the wells in different models under different leakage modes of pollutants, and also researching the migration rules of the solute and the non-aqueous phase and the pollutant remediation rules, and simulating the hydrodynamic fields of the circulation well and the aeration well.
According to the invention, the length of the first plug is longer than that of the first circulating pipe, and the length of the second plug is longer than that of the second circulating pipe, so that the first circulating pipe and the second circulating pipe can be completely plugged, and the operation of a circulating well can be conveniently simulated.
In the invention, the length of the third choke plug is longer than that of the third circulating pipe, and the length of the fourth choke plug is longer than that of the fourth circulating pipe, so that the third circulating pipe and the fourth circulating pipe can be completely plugged, and the operation of an aeration well can be simulated conveniently.
And the sampling pipe comprises a hard pipe section and a soft pipe section, the soft pipe section is connected with the hard pipe section, and the valve is fixed on the soft pipe section, so that the solute concentration and the nonaqueous phase in the working range of the circulation well and the aeration well can be conveniently monitored and sampled, and the sampling is convenient and flexible.
According to the invention, the vertical scales are bonded on the front surface of the transparent box body, the vertical scales are uniformly arranged, the sampling tubes are vertically embedded into the transparent box body, the sampling tubes are uniformly arranged, the spacing distance between any two rows of adjacent sampling tubes is 8cm, the solute concentration and the non-aqueous phase at different parts in the working range of the circulation well and the aeration well can be conveniently monitored and sampled, and the numerical value of the solute or non-aqueous phase vertical diffusion distance can be conveniently measured through the uniformly arranged vertical scales.
And sixthly, the transverse scale is bonded at the lower part of the transparent box body, so that the numerical value of the transverse diffusion distance of the solute or the non-aqueous phase can be conveniently measured.
Seventhly, a steel frame support used for placing the transparent box body is arranged at the bottom of the transparent box body, universal wheels are mounted on the steel frame support, the steel frame support can provide good support for the transparent box body, and the whole test device can be conveniently moved through the universal wheels.
And eighthly, the pressure measuring pipes are communicated with the transparent box body, and the pressure measuring pipes are uniformly arranged on the back surface of the transparent box body, so that water head values of different parts can be measured and obtained, and the influence of the water head rule of the circulation well on the pollutant removal effect of the circulation well and the influence of the water head rule of the aeration well on the pollutant removal effect of the aeration well can be conveniently researched subsequently.
And ninthly, the first sieve mesh outer well and the second sieve mesh outer well are both open pore pipelines, the diameter of the first sieve mesh outer well is 12cm, and the diameter of the second sieve mesh outer well is 10cm, so that the influence of the well wall effect on the repair can be conveniently researched.
The invention has the advantages that one side of the front surface of the transparent box body is provided with the vertical frame with the cross section in the I shape, the vertical frame is provided with the camera for recording the test process, the whole test process can be recorded by the camera, and when the numerical value at a certain moment needs to be read, the water head value, the numerical value of the solute transverse diffusion distance, the numerical value of the longitudinal diffusion distance and the non-aqueous phase movement distance at the moment can be obtained by temporarily stopping recording and corresponding the numerical value of the transverse scale and the vertical scale to the picture recorded by shooting.
Drawings
The invention will be further described in detail with reference to the drawings and the detailed description, in which:
FIG. 1 is a front view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is a schematic view of the structure of the sampling tube of the present invention;
FIG. 4 is a schematic structural view of the stand of the present invention;
the labels in the figure are: 1. transparent box, 2, first flow regulator, 3, second flow regulator, 4, centrifugal pump, 5, aeration pump, 6, intake pipe, 7, the inlet tube, 8, the outlet pipe, 9, the sampling tube, 10, vertical scale, 11, horizontal scale, 12, the valve, 13, the pressure-measuring pipe, 14, first cell body, 15, the second cell body, 16, the first sieve mesh outer well, 17, the second sieve mesh outer well, 18, the first circulation pipe, 19, the first connecting pipe, 20, the second circulation pipe, 21, the first end cap, 22, the second end cap, 23, the third circulation pipe, 24, the second connecting pipe, 25, the fourth circulation pipe, 26, the third end cap, 27, the fourth end cap, 28, the sealing washer, 29, the seal membrane, 30, the hard pipe section, 31, the hose section, 32, the steel frame support, 33, the universal wheel, 34, the grudging post, 35, the camera.
Detailed Description
Example 1
Referring to fig. 1-3, a multifunctional test device for repairing heterogeneous soil groundwater comprises a transparent box 1, a first flow regulator 2, a second flow regulator 3, a centrifugal pump 4, an aeration pump 5, an air inlet pipe 6, an inlet pipe 7 and an outlet pipe 8, wherein the front of the transparent box 1 is provided with a plurality of sampling pipes 9, a plurality of vertical scales 10 and a horizontal scale 11, the sampling pipes 9 are fixed with valves 12, the back of the transparent box 1 is provided with a plurality of pressure measuring pipes 13, one side of the transparent box 1 is provided with a first tank 14 provided with a water inlet, the other side of the transparent box 1 is provided with a second tank 15 provided with a water outlet, the side wall of the transparent box 1 is provided with through holes, the transparent box 1 is respectively communicated with the first tank 14 and the second tank 15, the transparent box 1 is internally fixed with a first sieve mesh external well 16 and a second sieve mesh external well 17 communicated with the atmosphere, a circulation well is fixed in the first sieve pore outer well 16 and comprises a first circulation pipe 18, a first connecting pipe 19 and a second circulation pipe 20, the upper end of the first circulation pipe 18 is a closed end, a first plug 21 is embedded at the lower end, the lower end of the second circulation pipe 20 is a closed end, a second plug 22 is embedded at the upper end, a plurality of small holes are uniformly distributed on the first circulation pipe 18 and the second circulation pipe 20, the first circulation pipe 18 is in sliding connection with the upper end of the first connecting pipe 19, the second circulation pipe 20 is in sliding connection with the lower end of the first connecting pipe 19, one end of the water inlet pipe 7 is connected with a centrifugal pump 4, the other end of the water inlet pipe 7 is connected with the first circulation pipe 18, one end of the water outlet pipe 8 is connected with a centrifugal pump 4, the other end of the water outlet pipe 8 is connected with the second circulation pipe 20, the centrifugal pump 4 is electrically connected with a first flow regulator 2, an aeration well is arranged in the second sieve pore outer well 17, the aeration well comprises a third circulating pipe 23, a second connecting pipe 24 and a fourth circulating pipe 25, the upper end of the third circulating pipe 23 is a closed end, the lower end is embedded with a third plug 26, the lower end of the fourth circulating pipe 25 is a closed end, the upper end is embedded with a fourth choke plug 27, a plurality of small holes are distributed on the third circulating pipe 23 and the fourth circulating pipe 25, the third circulating pipe 23 is connected with the upper end of the second connecting pipe 24 in a sliding way, a sealing ring 28 is sleeved on the third circulating pipe 23, the sealing ring 28 is fixed on the inner wall of the second sieve pore outer well 17, the middle part of the second sieve pore outer well 17 is wrapped with a sealing film 29, the fourth circulating pipe 25 is connected with the lower end of the second connecting pipe 24 in a sliding way, the closed end of the fourth circulating pipe 25 is higher than the lower end of the sealing film 29, one end of the air inlet pipe 6 is connected with the aeration pump 5, the other end of the air inlet pipe 6 is connected with the fourth circulating pipe 25, and the aeration pump 5 is electrically connected with the second flow regulator 3.
The embodiment is the most basic implementation mode, the influence of well wall effect on repair can be researched by adopting the first mesh outer well 16 and the second mesh outer well 17, the distance between the first circulating pipe 18 and the second circulating pipe 20 is adjusted through the first connecting pipe 19, the influence on the operation of the circulating well can be researched, the first flow regulator 2 is used for realizing the flow regulation of the ring, the aeration quantity of the aeration well is adjusted through the second flow regulator 3, the water head rule of the aeration well and the influence of the aeration quantity on the pollutant removal effect of the aeration well can be researched, the distance between the upper circulating pipe and the lower circulating pipe is adjusted through the connecting pipe, the effective length of the aeration well is further adjusted, the influence on the pollutant removal effect of the aeration well by the relative position of the aeration well and the mesh outer well is researched, solute concentration and nonaqueous phase in different parts in the working range of the whole circulating well and the aeration well can be monitored and sampled and pollutant leakage can be simulated by the sampling pipe 9, the method is convenient for researching the migration rules of the solute and the non-aqueous phase in the circulation well and the aeration well under the influence of different factors, and as a complete technical scheme, compared with the prior art, the method can flexibly adjust the parameters of the circulation well and the aeration well, thereby being convenient for researching the selection of well processes in different homogeneous and heterogeneous soil and underground water models, researching the hydrodynamic flow fields and the chemical fields of the solute and the non-aqueous phase of the circulation well and the aeration well in different models, and the design parameters of the best removal effect of the wells in different models under different leakage modes of pollutants, and also researching the migration rules of the solute and the non-aqueous phase and the pollutant remediation rules, and simulating the hydrodynamic fields of the circulation well and the aeration well.
Example 2
Referring to fig. 1-3, a multifunctional test device for repairing heterogeneous soil groundwater comprises a transparent box 1, a first flow regulator 2, a second flow regulator 3, a centrifugal pump 4, an aeration pump 5, an air inlet pipe 6, an inlet pipe 7 and an outlet pipe 8, wherein the front of the transparent box 1 is provided with a plurality of sampling pipes 9, a plurality of vertical scales 10 and a horizontal scale 11, the sampling pipes 9 are fixed with valves 12, the back of the transparent box 1 is provided with a plurality of pressure measuring pipes 13, one side of the transparent box 1 is provided with a first tank 14 provided with a water inlet, the other side of the transparent box 1 is provided with a second tank 15 provided with a water outlet, the side wall of the transparent box 1 is provided with through holes, the transparent box 1 is respectively communicated with the first tank 14 and the second tank 15, the transparent box 1 is internally fixed with a first sieve mesh external well 16 and a second sieve mesh external well 17 communicated with the atmosphere, a circulation well is fixed in the first sieve pore outer well 16 and comprises a first circulation pipe 18, a first connecting pipe 19 and a second circulation pipe 20, the upper end of the first circulation pipe 18 is a closed end, a first plug 21 is embedded at the lower end, the lower end of the second circulation pipe 20 is a closed end, a second plug 22 is embedded at the upper end, a plurality of small holes are uniformly distributed on the first circulation pipe 18 and the second circulation pipe 20, the first circulation pipe 18 is in sliding connection with the upper end of the first connecting pipe 19, the second circulation pipe 20 is in sliding connection with the lower end of the first connecting pipe 19, one end of the water inlet pipe 7 is connected with a centrifugal pump 4, the other end of the water inlet pipe 7 is connected with the first circulation pipe 18, one end of the water outlet pipe 8 is connected with a centrifugal pump 4, the other end of the water outlet pipe 8 is connected with the second circulation pipe 20, the centrifugal pump 4 is electrically connected with a first flow regulator 2, an aeration well is arranged in the second sieve pore outer well 17, the aeration well comprises a third circulating pipe 23, a second connecting pipe 24 and a fourth circulating pipe 25, the upper end of the third circulating pipe 23 is a closed end, the lower end is embedded with a third plug 26, the lower end of the fourth circulating pipe 25 is a closed end, the upper end is embedded with a fourth choke plug 27, a plurality of small holes are distributed on the third circulating pipe 23 and the fourth circulating pipe 25, the third circulating pipe 23 is connected with the upper end of the second connecting pipe 24 in a sliding way, a sealing ring 28 is sleeved on the third circulating pipe 23, the sealing ring 28 is fixed on the inner wall of the second sieve pore outer well 17, the middle part of the second sieve pore outer well 17 is wrapped with a sealing film 29, the fourth circulating pipe 25 is connected with the lower end of the second connecting pipe 24 in a sliding way, the closed end of the fourth circulating pipe 25 is higher than the lower end of the sealing film 29, one end of the air inlet pipe 6 is connected with the aeration pump 5, the other end of the air inlet pipe 6 is connected with the fourth circulating pipe 25, and the aeration pump 5 is electrically connected with the second flow regulator 3.
The first plug 21 is longer than the first annulus 18 and the second plug 22 is longer than the second annulus 20.
The third plug 26 is longer than the third circulation pipe 23, and the fourth plug 27 is longer than the fourth circulation pipe 25.
In this embodiment, the length of the first plug 21 is longer than that of the first circulation pipe 18, and the length of the second plug 22 is longer than that of the second circulation pipe 20, so that the first circulation pipe 18 and the second circulation pipe 20 can be completely plugged, and circulation well operation can be simulated conveniently.
The length of the third choke plug 26 is longer than that of the third circulation pipe 23, and the length of the fourth choke plug 27 is longer than that of the fourth circulation pipe 25, so that the third circulation pipe 23 and the fourth circulation pipe 25 can be completely plugged, and the operation of an aeration well can be simulated conveniently.
Example 3
Referring to fig. 1-3, a multifunctional test device for repairing heterogeneous soil groundwater comprises a transparent box 1, a first flow regulator 2, a second flow regulator 3, a centrifugal pump 4, an aeration pump 5, an air inlet pipe 6, an inlet pipe 7 and an outlet pipe 8, wherein the front of the transparent box 1 is provided with a plurality of sampling pipes 9, a plurality of vertical scales 10 and a horizontal scale 11, the sampling pipes 9 are fixed with valves 12, the back of the transparent box 1 is provided with a plurality of pressure measuring pipes 13, one side of the transparent box 1 is provided with a first tank 14 provided with a water inlet, the other side of the transparent box 1 is provided with a second tank 15 provided with a water outlet, the side wall of the transparent box 1 is provided with through holes, the transparent box 1 is respectively communicated with the first tank 14 and the second tank 15, the transparent box 1 is internally fixed with a first sieve mesh external well 16 and a second sieve mesh external well 17 communicated with the atmosphere, a circulation well is fixed in the first sieve pore outer well 16 and comprises a first circulation pipe 18, a first connecting pipe 19 and a second circulation pipe 20, the upper end of the first circulation pipe 18 is a closed end, a first plug 21 is embedded at the lower end, the lower end of the second circulation pipe 20 is a closed end, a second plug 22 is embedded at the upper end, a plurality of small holes are uniformly distributed on the first circulation pipe 18 and the second circulation pipe 20, the first circulation pipe 18 is in sliding connection with the upper end of the first connecting pipe 19, the second circulation pipe 20 is in sliding connection with the lower end of the first connecting pipe 19, one end of the water inlet pipe 7 is connected with a centrifugal pump 4, the other end of the water inlet pipe 7 is connected with the first circulation pipe 18, one end of the water outlet pipe 8 is connected with a centrifugal pump 4, the other end of the water outlet pipe 8 is connected with the second circulation pipe 20, the centrifugal pump 4 is electrically connected with a first flow regulator 2, an aeration well is arranged in the second sieve pore outer well 17, the aeration well comprises a third circulating pipe 23, a second connecting pipe 24 and a fourth circulating pipe 25, the upper end of the third circulating pipe 23 is a closed end, the lower end is embedded with a third plug 26, the lower end of the fourth circulating pipe 25 is a closed end, the upper end is embedded with a fourth choke plug 27, a plurality of small holes are distributed on the third circulating pipe 23 and the fourth circulating pipe 25, the third circulating pipe 23 is connected with the upper end of the second connecting pipe 24 in a sliding way, a sealing ring 28 is sleeved on the third circulating pipe 23, the sealing ring 28 is fixed on the inner wall of the second sieve pore outer well 17, the middle part of the second sieve pore outer well 17 is wrapped with a sealing film 29, the fourth circulating pipe 25 is connected with the lower end of the second connecting pipe 24 in a sliding way, the closed end of the fourth circulating pipe 25 is higher than the lower end of the sealing film 29, one end of the air inlet pipe 6 is connected with the aeration pump 5, the other end of the air inlet pipe 6 is connected with the fourth circulating pipe 25, and the aeration pump 5 is electrically connected with the second flow regulator 3.
The first plug 21 is longer than the first circulation pipe 18, and the second plug 22 is longer than the second circulation pipe 20.
The third plug 26 is longer than the third circulation pipe 23, and the fourth plug 27 is longer than the fourth circulation pipe 25.
The sampling tube 9 comprises a hard tube section 30 and a flexible tube section 31, the flexible tube section 31 is connected to the hard tube section 30, and the valve 12 is fixed to the flexible tube section 31.
In this embodiment, the sampling tube 9 comprises a hard tube section 30 and a flexible tube section 31, the flexible tube section 31 is connected to the hard tube section 30, and the valve 12 is fixed on the flexible tube section 31, so as to facilitate the monitoring and sampling of the solute concentration and the non-aqueous phase in the working range of the circulation well and the aeration well, and the sampling is convenient and flexible.
Example 4
Referring to fig. 1-3, a multifunctional test device for repairing heterogeneous soil groundwater comprises a transparent box 1, a first flow regulator 2, a second flow regulator 3, a centrifugal pump 4, an aeration pump 5, an air inlet pipe 6, an inlet pipe 7 and an outlet pipe 8, wherein the front of the transparent box 1 is provided with a plurality of sampling pipes 9, a plurality of vertical scales 10 and a horizontal scale 11, the sampling pipes 9 are fixed with valves 12, the back of the transparent box 1 is provided with a plurality of pressure measuring pipes 13, one side of the transparent box 1 is provided with a first tank 14 provided with a water inlet, the other side of the transparent box 1 is provided with a second tank 15 provided with a water outlet, the side wall of the transparent box 1 is provided with through holes, the transparent box 1 is respectively communicated with the first tank 14 and the second tank 15, the transparent box 1 is internally fixed with a first sieve mesh external well 16 and a second sieve mesh external well 17 communicated with the atmosphere, a circulation well is fixed in the first sieve pore outer well 16 and comprises a first circulation pipe 18, a first connecting pipe 19 and a second circulation pipe 20, the upper end of the first circulation pipe 18 is a closed end, a first plug 21 is embedded at the lower end, the lower end of the second circulation pipe 20 is a closed end, a second plug 22 is embedded at the upper end, a plurality of small holes are uniformly distributed on the first circulation pipe 18 and the second circulation pipe 20, the first circulation pipe 18 is in sliding connection with the upper end of the first connecting pipe 19, the second circulation pipe 20 is in sliding connection with the lower end of the first connecting pipe 19, one end of the water inlet pipe 7 is connected with a centrifugal pump 4, the other end of the water inlet pipe 7 is connected with the first circulation pipe 18, one end of the water outlet pipe 8 is connected with a centrifugal pump 4, the other end of the water outlet pipe 8 is connected with the second circulation pipe 20, the centrifugal pump 4 is electrically connected with a first flow regulator 2, an aeration well is arranged in the second sieve pore outer well 17, the aeration well comprises a third circulating pipe 23, a second connecting pipe 24 and a fourth circulating pipe 25, the upper end of the third circulating pipe 23 is a closed end, the lower end is embedded with a third plug 26, the lower end of the fourth circulating pipe 25 is a closed end, the upper end is embedded with a fourth choke plug 27, a plurality of small holes are distributed on the third circulating pipe 23 and the fourth circulating pipe 25, the third circulating pipe 23 is connected with the upper end of the second connecting pipe 24 in a sliding way, a sealing ring 28 is sleeved on the third circulating pipe 23, the sealing ring 28 is fixed on the inner wall of the second sieve pore outer well 17, the middle part of the second sieve pore outer well 17 is wrapped with a sealing film 29, the fourth circulating pipe 25 is connected with the lower end of the second connecting pipe 24 in a sliding way, the closed end of the fourth circulating pipe 25 is higher than the lower end of the sealing film 29, one end of the air inlet pipe 6 is connected with the aeration pump 5, the other end of the air inlet pipe 6 is connected with the fourth circulating pipe 25, and the aeration pump 5 is electrically connected with the second flow regulator 3.
The first plug 21 is longer than the first circulation pipe 18, and the second plug 22 is longer than the second circulation pipe 20.
The third plug 26 is longer than the third circulation pipe 23, and the fourth plug 27 is longer than the fourth circulation pipe 25.
The sampling tube 9 comprises a hard tube section 30 and a flexible tube section 31, the flexible tube section 31 is connected to the hard tube section 30, and the valve 12 is fixed to the flexible tube section 31.
The vertical scales 10 are bonded on the front face of the transparent box body 1, the vertical scales 10 are evenly arranged, the sampling tubes 9 are perpendicularly embedded into the transparent box body 1, the sampling tubes 9 are evenly arranged, and the spacing distance between any two rows of adjacent sampling tubes 9 is 8 cm.
The horizontal scale 11 is adhered to the lower part of the transparent box 1.
In another preferred embodiment, the vertical scales 10 are bonded on the front surface of the transparent box body 1, the plurality of vertical scales 10 are uniformly arranged, the sampling tubes 9 are vertically embedded in the transparent box body 1, the plurality of sampling tubes 9 are uniformly arranged, the spacing distance between any two rows of adjacent sampling tubes 9 is 8cm, solute concentrations and non-aqueous phases at different positions in the working range of the circulation well and the aeration well can be monitored and sampled conveniently, and the numerical value of the solute or non-aqueous phase vertical diffusion distance can be measured conveniently through the plurality of uniformly arranged vertical scales 10.
The transverse scale 11 is adhered to the lower part of the transparent box 1, so as to be convenient for measuring the value of the transverse diffusion distance of the solute or the non-aqueous phase.
Example 5
Referring to fig. 1-3, a multifunctional test device for repairing heterogeneous soil groundwater comprises a transparent box 1, a first flow regulator 2, a second flow regulator 3, a centrifugal pump 4, an aeration pump 5, an air inlet pipe 6, an inlet pipe 7 and an outlet pipe 8, wherein the front of the transparent box 1 is provided with a plurality of sampling pipes 9, a plurality of vertical scales 10 and a horizontal scale 11, the sampling pipes 9 are fixed with valves 12, the back of the transparent box 1 is provided with a plurality of pressure measuring pipes 13, one side of the transparent box 1 is provided with a first tank 14 provided with a water inlet, the other side of the transparent box 1 is provided with a second tank 15 provided with a water outlet, the side wall of the transparent box 1 is provided with through holes, the transparent box 1 is respectively communicated with the first tank 14 and the second tank 15, the transparent box 1 is internally fixed with a first sieve mesh external well 16 and a second sieve mesh external well 17 communicated with the atmosphere, a circulation well is fixed in the first sieve mesh outer well 16 and comprises a first circulation pipe 18, a first connecting pipe 19 and a second circulation pipe 20, the upper end of the first circulation pipe 18 is a closed end, the lower end of the first circulation pipe 18 is embedded with a first plug 21, the lower end of the second circulation pipe 20 is a closed end, the upper end of the second circulation pipe 20 is embedded with a second plug 22, a plurality of small holes are uniformly distributed on the first circulation pipe 18 and the second circulation pipe 20, the first circulation pipe 18 is in sliding connection with the upper end of the first connecting pipe 19, the second circulation pipe 20 is in sliding connection with the lower end of the first connecting pipe 19, one end of the water inlet pipe 7 is connected with a centrifugal pump 4, the other end of the water inlet pipe 7 is connected with the first circulation pipe 18, one end of the water outlet pipe 8 is connected with a centrifugal pump 4, the other end of the water outlet pipe 8 is connected with the second circulation pipe 20, the centrifugal pump 4 is electrically connected with a first flow regulator 2, an aeration well is arranged in the second sieve mesh outer well 17, the aeration well comprises a third circulating pipe 23, a second connecting pipe 24 and a fourth circulating pipe 25, the upper end of the third circulating pipe 23 is a closed end, the lower end is embedded with a third plug 26, the lower end of the fourth circulating pipe 25 is a closed end, the upper end is embedded with a fourth choke plug 27, a plurality of small holes are distributed on the third circulating pipe 23 and the fourth circulating pipe 25, the third circulating pipe 23 is connected with the upper end of the second connecting pipe 24 in a sliding way, a sealing ring 28 is sleeved on the third circulating pipe 23, the sealing ring 28 is fixed on the inner wall of the second sieve pore outer well 17, the middle part of the second mesh outer well 17 is wrapped with a sealing film 29, the fourth circulating pipe 25 is connected with the lower end of the second connecting pipe 24 in a sliding way, the closed end of the fourth circulating pipe 25 is higher than the lower end of the sealing film 29, one end of the air inlet pipe 6 is connected with the aeration pump 5, the other end of the air inlet pipe 6 is connected with the fourth circulating pipe 25, and the aeration pump 5 is electrically connected with the second flow regulator 3.
The first plug 21 is longer than the first circulation pipe 18, and the second plug 22 is longer than the second circulation pipe 20.
The third plug 26 is longer than the third circulation pipe 23, and the fourth plug 27 is longer than the fourth circulation pipe 25.
The sampling tube 9 comprises a hard tube section 30 and a flexible tube section 31, the flexible tube section 31 is connected to the hard tube section 30, and the valve 12 is fixed to the flexible tube section 31.
The vertical scales 10 are bonded on the front face of the transparent box body 1, the vertical scales 10 are evenly arranged, the sampling tubes 9 are perpendicularly embedded into the transparent box body 1, the sampling tubes 9 are evenly arranged, and the spacing distance between any two rows of adjacent sampling tubes 9 is 8 cm.
The horizontal scale 11 is adhered to the lower part of the transparent box 1.
The bottom of the transparent box body 1 is provided with a steel frame support 32 for placing the transparent box body 1, and the steel frame support 32 is provided with universal wheels 33.
The pressure measuring pipes 13 are communicated with the transparent box body 1, and the pressure measuring pipes 13 are evenly arranged on the back face of the transparent box body 1.
In this embodiment, a steel frame support 32 for placing the transparent box 1 is disposed at the bottom of the transparent box 1, a universal wheel 33 is mounted on the steel frame support 32, the steel frame support 32 can provide a good support for the transparent box 1, and the whole test device can be conveniently moved by the universal wheel 33.
The pressure measuring pipes 13 are communicated with the transparent box body 1, and the pressure measuring pipes 13 are uniformly arranged on the back face of the transparent box body 1, so that water head values of different positions can be measured and obtained, and the influence of the water head rule of the circulation well on the pollutant removing effect of the circulation well and the influence of the water head rule of the aeration well on the pollutant removing effect of the aeration well can be conveniently and subsequently explored.
Example 6
Referring to fig. 1-4, a multifunctional test device for repairing heterogeneous soil groundwater comprises a transparent box 1, a first flow regulator 2, a second flow regulator 3, a centrifugal pump 4, an aeration pump 5, an air inlet pipe 6, an water inlet pipe 7 and a water outlet pipe 8, wherein the front of the transparent box 1 is provided with a plurality of sampling pipes 9, a plurality of vertical scales 10 and a horizontal scale 11, the sampling pipes 9 are fixed with valves 12, the back of the transparent box 1 is provided with a plurality of pressure measuring pipes 13, one side of the transparent box 1 is provided with a first tank 14 provided with a water inlet, the other side of the transparent box 1 is provided with a second tank 15 provided with a water outlet, the side wall of the transparent box 1 is provided with through holes, the transparent box 1 is respectively communicated with the first tank 14 and the second tank 15, the transparent box 1 is internally fixed with a first sieve mesh external well 16 and a second sieve mesh external well 17 which are communicated with the atmosphere, a circulation well is fixed in the first sieve pore outer well 16 and comprises a first circulation pipe 18, a first connecting pipe 19 and a second circulation pipe 20, the upper end of the first circulation pipe 18 is a closed end, a first plug 21 is embedded at the lower end, the lower end of the second circulation pipe 20 is a closed end, a second plug 22 is embedded at the upper end, a plurality of small holes are uniformly distributed on the first circulation pipe 18 and the second circulation pipe 20, the first circulation pipe 18 is in sliding connection with the upper end of the first connecting pipe 19, the second circulation pipe 20 is in sliding connection with the lower end of the first connecting pipe 19, one end of the water inlet pipe 7 is connected with a centrifugal pump 4, the other end of the water inlet pipe 7 is connected with the first circulation pipe 18, one end of the water outlet pipe 8 is connected with a centrifugal pump 4, the other end of the water outlet pipe 8 is connected with the second circulation pipe 20, the centrifugal pump 4 is electrically connected with a first flow regulator 2, an aeration well is arranged in the second sieve pore outer well 17, the aeration well comprises a third circulating pipe 23, a second connecting pipe 24 and a fourth circulating pipe 25, the upper end of the third circulating pipe 23 is a closed end, the lower end is embedded with a third plug 26, the lower end of the fourth circulating pipe 25 is a closed end, the upper end is embedded with a fourth choke plug 27, a plurality of small holes are distributed on the third circulating pipe 23 and the fourth circulating pipe 25, the third circulating pipe 23 is connected with the upper end of the second connecting pipe 24 in a sliding way, a sealing ring 28 is sleeved on the third circulating pipe 23, the sealing ring 28 is fixed on the inner wall of the second sieve pore outer well 17, the middle part of the second sieve pore outer well 17 is wrapped with a sealing film 29, the fourth circulating pipe 25 is connected with the lower end of the second connecting pipe 24 in a sliding way, the closed end of the fourth circulating pipe 25 is higher than the lower end of the sealing film 29, one end of the air inlet pipe 6 is connected with the aeration pump 5, the other end of the air inlet pipe 6 is connected with the fourth circulating pipe 25, and the aeration pump 5 is electrically connected with the second flow regulator 3.
The first plug 21 is longer than the first circulation pipe 18, and the second plug 22 is longer than the second circulation pipe 20.
The third plug 26 is longer than the third circulation pipe 23, and the fourth plug 27 is longer than the fourth circulation pipe 25.
The sampling tube 9 comprises a hard tube section 30 and a flexible tube section 31, the flexible tube section 31 is connected to the hard tube section 30, and the valve 12 is fixed to the flexible tube section 31.
The vertical scales 10 are bonded on the front face of the transparent box body 1, the vertical scales 10 are evenly arranged, the sampling tubes 9 are perpendicularly embedded into the transparent box body 1, the sampling tubes 9 are evenly arranged, and the spacing distance between any two rows of adjacent sampling tubes 9 is 8 cm.
The horizontal scale 11 is adhered to the lower part of the transparent box 1.
The bottom of the transparent box body 1 is provided with a steel frame support 32 for placing the transparent box body 1, and the steel frame support 32 is provided with universal wheels 33.
The pressure measuring pipes 13 are communicated with the transparent box body 1, and the pressure measuring pipes 13 are evenly arranged on the back face of the transparent box body 1.
The first sieve mesh outer well 16 and the second sieve mesh outer well 17 are both open-pore pipelines, the diameter of the first sieve mesh outer well 16 is 12cm, and the diameter of the second sieve mesh outer well 17 is 10 cm.
A vertical frame 34 with an I-shaped cross section is arranged on one side of the front face of the transparent box body 1, and a camera 35 used for recording the test process is mounted on the vertical frame 34.
This embodiment is best mode, and first outer well 16 of sieve mesh and second outer well 17 of sieve mesh are the trompil pipeline, and the diameter of first outer well 16 of sieve mesh is 12cm, and the diameter of second outer well 17 of sieve mesh is 10cm, is convenient for study the influence of wall of a well effect to the restoration.
The vertical frame 34 with the cross section shaped like the Chinese character 'I' is arranged on one side of the front face of the transparent box body 1, the camera 35 used for recording the test process is installed on the vertical frame 34, the whole test process can be recorded by arranging the camera 35, when the numerical value at a certain moment needs to be read, the water head value, the numerical value of the solute transverse diffusion distance, the numerical value of the longitudinal diffusion distance and the non-aqueous phase movement distance at the moment can be obtained by temporarily stopping recording and corresponding the numerical values of the transverse scale 11 and the vertical scale 10 to the picture recorded by shooting.
The working principle of the circulation well is as follows:
the method comprises the steps of installing a waterproof material in a transparent box body 1, separating the transparent box body 1 into a waterproof layer and a water-bearing layer, opening a centrifugal pump 4, then pumping water through a first circulating pipe 18 to generate suction force, pumping the water in the transparent box body 1 into a first sieve mesh outer well 16, entering the first circulating pipe 18, passing through the centrifugal pump 4, entering a second circulating pipe 20 through a water outlet pipe 8, finally discharging the water out of the first sieve mesh outer well 16, and entering the transparent box body 1, so that circulation is formed in the water-bearing layer.
The working principle of the aeration well is as follows:
install water barrier in transparent box 1, separate transparent box 1 into water barrier and aquifer, aeration pump 5 opens the back, gaseous through intake pipe 6 entering fourth circulation pipe 25, produce a large amount of gas in second sieve mesh outer well 17, after fourth circulation pipe 25 produced a large amount of gas, can have density difference with the outside aquifer of second sieve mesh outer well 17, second sieve mesh outer well 17 is inside to produce the negative pressure, and then make the water in the outside aquifer of second sieve mesh outer well 17 get into in second sieve mesh outer well 17, then water and gas mixture rise to sealing washer 28 position, reentry the aquifer through the sieve mesh on the second sieve mesh outer well 17 below sealing washer 28, form the hydrologic cycle in the aquifer from this, and after the gas in the aquifer gathers in the aquifer top in a large number, can get into second sieve mesh outer well 17 through the sieve mesh on the second sieve mesh outer well 17 above sealing washer 28, since the top of the second mesh outer well 17 is open to the atmosphere, eventually the gas escapes into the atmosphere.
The process of simulating contaminant leakage is as follows:
the leakage position: selecting a corresponding sampling tube 9 or the top of the heterogeneous soil groundwater as required, and injecting the medicament into the transparent box body 1 through the sampling tube 9 by an injector; leakage mode: in the process of injecting the pollutants, the injection frequency is adjusted, and continuous injection is adopted for a long time; or instantaneous, one-time short-time injection; or interval type, and injection mode of injecting once at intervals.
The sampling tube 9 can simulate the leakage of pollutants at different positions in the groundwater of the heterogeneous soil in different forms of continuous pollution sources, instantaneous pollution sources or discontinuous pollution sources.
Claims (10)
1. The utility model provides a repair multifunctional test equipment of inhomogeneous soil groundwater, includes transparent box (1), its characterized in that: the device is characterized by further comprising a first flow regulator (2), a second flow regulator (3), a centrifugal pump (4), an aeration pump (5), an air inlet pipe (6), an water inlet pipe (7) and a water outlet pipe (8), wherein a plurality of sampling pipes (9), a plurality of vertical scales (10) and a transverse scale (11) are arranged on the front surface of the transparent box body (1), valves (12) are fixed on the sampling pipes (9), a plurality of pressure measuring pipes (13) are arranged on the back surface of the transparent box body (1), a first groove body (14) provided with a water inlet is arranged on one side of the transparent box body (1), a second groove body (15) provided with a water outlet is arranged on the other side of the transparent box body (1), through holes are formed in the side wall of the transparent box body (1), the transparent box body (1) is respectively communicated with the first groove body (14) and the second groove body (15), a first sieve mesh outer well (16) and a second sieve mesh outer well (17) communicated with the atmosphere are fixed in the transparent box body (1), a circulation well is fixed in a first sieve pore outer well (16) and comprises a first circulation pipe (18), a first connecting pipe (19) and a second circulation pipe (20), the upper end of the first circulation pipe (18) is a closed end, a first plug (21) is embedded at the lower end of the first circulation pipe (18), the lower end of the second circulation pipe (20) is a closed end, a second plug (22) is embedded at the upper end of the second circulation pipe (20), a plurality of small holes are uniformly distributed on the first circulation pipe (18) and the second circulation pipe (20), the first circulation pipe (18) is in sliding connection with the upper end of the first connecting pipe (19), the second circulation pipe (20) is in sliding connection with the lower end of the first connecting pipe (19), one end of a water inlet pipe (7) is connected with a centrifugal pump (4), the other end of the water inlet pipe (7) is connected with the first circulation pipe (18), one end of a water outlet pipe (8) is connected with the centrifugal pump (4), and the other end of the water outlet pipe (8) is connected with the second circulation pipe (20), the centrifugal pump (4) is electrically connected with the first flow regulator (2), an aeration well is arranged in the second sieve mesh outer well (17), the aeration well comprises a third circulating pipe (23), a second connecting pipe (24) and a fourth circulating pipe (25), the upper end of the third circulating pipe (23) is a closed end, a third plug (26) is embedded at the lower end, the lower end of the fourth circulating pipe (25) is a closed end, a fourth plug (27) is embedded at the upper end, a plurality of small holes are distributed on the third circulating pipe (23) and the fourth circulating pipe (25), the third circulating pipe (23) is in sliding connection with the upper end of the second connecting pipe (24), a sealing ring (28) is sleeved on the third circulating pipe (23), the sealing ring (28) is fixed on the inner wall of the second sieve mesh outer well (17), a sealing film (29) is wrapped at the middle part of the second sieve mesh outer well (17), the fourth circulating pipe (25) is in sliding connection with the lower end of the second circulating pipe (24), the closed end of the fourth circulating pipe (25) is higher than the lower end of the sealing film (29), one end of the air inlet pipe (6) is connected with the aeration pump (5), the other end of the air inlet pipe (6) is connected with the fourth circulating pipe (25), and the aeration pump (5) is electrically connected with the second flow regulator (3).
2. The multifunctional experimental testing apparatus for remediation of heterogeneous soil groundwater of claim 1, wherein: the length of the first plug (21) is longer than that of the first circulating pipe (18), and the length of the second plug (22) is longer than that of the second circulating pipe (20).
3. The multifunctional experimental testing apparatus for remediation of heterogeneous soil groundwater of claim 1, wherein: the third plug (26) is longer than the third circulating pipe (23), and the fourth plug (27) is longer than the fourth circulating pipe (25).
4. The multifunctional experimental test equipment for repairing heterogeneous soil groundwater according to claim 1, wherein: the sampling tube (9) comprises a hard tube section (30) and a hose section (31), the hose section (31) is connected with the hard tube section (30), and the valve (12) is fixed on the hose section (31).
5. The multifunctional experimental testing apparatus for remediation of heterogeneous soil groundwater of claim 1, wherein: vertical scale (10) bond on the front of transparent box (1), and many vertical scales (10) are evenly arranged, and in sampling tube (9) embedded transparent box (1) perpendicularly, many sampling tubes (9) evenly arranged, the interval distance of two arbitrary rows of adjacent sampling tubes (9) was 8 cm.
6. The multifunctional experimental testing apparatus for remediation of heterogeneous soil groundwater of claim 1, wherein: the transverse scale (11) is adhered to the lower part of the transparent box body (1).
7. The multifunctional experimental testing apparatus for remediation of heterogeneous soil groundwater of claim 1, wherein: the bottom of the transparent box body (1) is provided with a steel frame support (32) for placing the transparent box body (1), and the steel frame support (32) is provided with universal wheels (33).
8. The multifunctional experimental test equipment for repairing heterogeneous soil groundwater according to claim 1, wherein: the pressure measuring pipes (13) are communicated with the transparent box body (1), and the pressure measuring pipes (13) are uniformly arranged on the back surface of the transparent box body (1).
9. The multifunctional experimental testing apparatus for remediation of heterogeneous soil groundwater of claim 1, wherein: the first sieve mesh outer well (16) and the second sieve mesh outer well (17) are both open pore pipelines, the diameter of the first sieve mesh outer well (16) is 12cm, and the diameter of the second sieve mesh outer well (17) is 10 cm.
10. The multifunctional experimental test equipment for repairing heterogeneous soil groundwater according to claim 1, wherein: a vertical frame (34) with an I-shaped cross section is arranged on one side of the front face of the transparent box body (1), and a camera (35) used for recording the test process is mounted on the vertical frame (34).
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