CN217665396U - In-situ medicine injection influence radius test system - Google Patents
In-situ medicine injection influence radius test system Download PDFInfo
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- CN217665396U CN217665396U CN202221132095.9U CN202221132095U CN217665396U CN 217665396 U CN217665396 U CN 217665396U CN 202221132095 U CN202221132095 U CN 202221132095U CN 217665396 U CN217665396 U CN 217665396U
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Abstract
The utility model discloses an normal position injection influences radius test system, include: an injection well with a depth greater than the depth of the lowest soil layer to be monitored; a monitoring well located at a periphery of the injection well and having a depth coincident with the injection well; the injection part comprises an injection pipe extending into the injection well, a perforated pipe connected to the lower end of the injection pipe, and an upper barrier and a lower barrier which are respectively arranged at the upper end and the lower end of the perforated pipe, wherein the upper barrier and the lower barrier limit an injection layer so that the liquid medicine is diffused to a soil layer corresponding to the injection layer; the medicine supply mechanism is connected with the upper end of the medicine injection pipe and is used for supplying medicine liquid to the medicine injection pipe; and the liquid medicine detector extends into the monitoring well and is consistent with the depth of the injection layer, and the liquid medicine detector is used for monitoring the influence radius of liquid medicine on the soil layer where the injection layer is located.
Description
Technical Field
The utility model relates to an underground pollutant handles technical field, especially relates to a radius test system is influenced in normal position injection.
Background
The in-situ chemical oxidation/reduction technology is one of the commonly used technologies for repairing the polluted site, and has the advantages of high removal efficiency, short repair period, easy control of secondary pollution, capability of treating various pollutants without limitation of the concentration of pollutants and the like. The in-situ injection well is used as one of in-situ chemical oxidation/reduction repairing medicament adding modes and is widely applied to in-situ repair of polluted soil and underground water. The injection method of the in-situ injection well is to inject the medicament into the target soil and underground water polluted area through the fixed well, so that the medicament is diffused underground and contacts with the pollutants in the soil and the underground water, and the pollutants in the soil and the underground water are converted into substances which are nontoxic or have less toxicity to the surrounding environment or human bodies through the chemical oxidation/reduction action.
Because soil and groundwater pollution depth often covers different soil layers, and because different depth soil layer permeability makes the influence radius of medicament also have the difference, the experience method that often adopts in normal position injection well restoration design sets for the medicament diffusion radius, has great blindness.
In order to obtain more accurate medicament influence radiuses of different soil layers, in the prior art, the diffusion radiuses of medicaments in different soil layers are determined by using a field test, so that the local reaction in the repair implementation process is avoided, and the repair efficiency is improved.
However, in the prior art, the influence radius of the medicament on different soil layers is tested by adopting a mode of constructing injection wells with different depths and monitoring wells aiming at different target soil layers, which inevitably results in the increase of well construction cost.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned technical problem that exists among the prior art, the embodiment of the utility model provides an in situ annotates medicine influence radius test system.
For solving the technical problem, the embodiment of the utility model adopts the following technical scheme:
an in situ dose impact radius test system, comprising:
an injection well with a depth greater than the depth of the lowest soil layer to be monitored;
a monitoring well located at a periphery of the injection well and having a depth coincident with the injection well;
the injection part comprises an injection pipe extending into the injection well, a perforated pipe connected to the lower end of the injection pipe, and an upper barrier and a lower barrier which are respectively arranged at the upper end and the lower end of the perforated pipe, wherein the upper barrier and the lower barrier limit an injection layer so that the liquid medicine is diffused to a soil layer corresponding to the injection layer;
the medicine supply mechanism is connected with the upper end of the medicine injection pipe and used for providing liquid medicine for the medicine injection pipe;
and the liquid medicine detector extends into the monitoring well and is consistent with the depth of the injection layer, and the liquid medicine detector is used for monitoring the influence radius of liquid medicine on the soil layer where the injection layer is located.
Preferably, the first and second liquid crystal display panels are,
the upper blocking device and the lower blocking device respectively comprise a disc-shaped main body and an annular hollow rubber ring positioned on the periphery of the disc-shaped main body;
the in-situ chemical injection influence radius test system further comprises an air supply mechanism, and the air supply mechanism is used for inflating and deflating the annular hollow rubber ring;
when the medicine injection depth needs to be adjusted, the annular hollow rubber ring is deflated, so that the medicine injection pipe drives the flower tube to lift;
when the adjusted corresponding soil layer is required to be injected with the pesticide, the gas supply mechanism inflates the annular hollow rubber ring, and the annular hollow rubber ring expands to seal and position the upper blocker and the lower blocker with the injection well.
Preferably, the filter material layer, the water stopping layer and the backfill layer are sequentially constructed from bottom to top in the injection well and the well wall of the monitoring well, and the filter material layer, the water stopping layer and the backfill layer of the injection well are consistent with the filter material layer, the water stopping layer and the backfill layer of the monitoring well in layer height.
Preferably, the well wall of the injection well and the well wall of the monitoring well are both provided with a screen.
Preferably, the liquid medicine detector is a conductivity electrode.
Preferably, the medicine supply mechanism includes a medicine tank, a medicine injection pump, a flow meter, a pressure gauge and a valve, the medicine injection pump supplies the medicine liquid to the medicine injection pipe by pumping the medicine liquid to the medicine tank, the flow meter is used for metering the flow of the medicine liquid supplied to the medicine injection pipe, the pressure gauge is used for monitoring the pressure of the medicine liquid supplied to the medicine injection pipe, and the valve is used for controlling the medicine supply to the medicine injection pipe.
Preferably, the gas supply mechanism comprises a gas storage tank, a gas injection pipe, a gas pressure detector and a valve; the gas injection pipe stretches into in the injection well and with go up the baffler with the annular cavity rubber ring intercommunication of baffler down, the gas holder is used for to gas injection pipe confession gas, the atmospheric pressure detector is used for monitoring the pressure of injected gas, the valve is used for control to the gas injection pipe air feed.
Preferably, the air supply mechanism further comprises an air compressor for supplying pressure air to the air storage tank.
Preferably, a graduated scale is further arranged on the outer pipe wall of the medicine injection pipe to define the depth of the medicine injection layer.
Preferably, a stirrer is installed in the medicament tank, and the stirrer is used for mixing the liquid medicament in the medicament tank.
Compared with the prior art, the embodiment of the utility model provides an in situ injection influences radius test system's beneficial effect is:
1. the system can utilize the same injection well to complete the radius test of the influence of the medicament on different soil layers, and further save the well construction cost.
2. This test system uses sodium chloride solution as the tracer, injects the influence scope through detecting groundwater conductivity reaction, and injects the diffusion range of the different degree of depth of test in the well into at same mouth, effectively avoids not having the pertinence ground in polluting the degree of depth within range and injects the medicament, does benefit to accurate restoration contaminated soil and groundwater.
Drawings
Fig. 1 is a schematic diagram of an in-situ injection radius influence testing system according to an embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is a view from a-a of fig. 2.
In the figure:
1-a medicament can; 2-a stirrer; 3-a first valve; 4-a drug injection pump; 5-a second valve; 6-pressure gauge; 7-a flow meter; 8-a medicine injection tube; 9-floral tube; 10-a graduated scale; 11-an injection well; 12-an injection well screen; 13-an air compressor; 14-a third valve; 15-a gas storage tank; 16-a fourth valve; 17-air pressure detector; 18-a gas injection pipe; 19 a-upper blocker; 19 b-lower barrier; 20-ring-shaped hollow rubber ring; 21-a monitoring well; 22-monitor well screen; 23-a conductivity electrode; 24-a controller; 25-ground; 26-a filter material layer; 27-water stop layer; 28-backfill layer.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1-3, the embodiment of the utility model discloses an in situ injection influences radius test system, and this in situ injection influences radius test system includes: injection well 11, monitoring well 21, injection part, medicine supply mechanism, medicine liquid detector, air feed mechanism.
Establishing an injection well 11 and a plurality of monitoring wells 21 positioned within a preset range of the injection well 11 on the ground 25 of a polluted site; the depth of the injection well 11 is larger than the depth of the lowest soil layer to be monitored, the depth of the monitoring well 21 is consistent with the depth of the injection well 11, and the aperture of the monitoring well 21 is smaller than that of the injection well 11; the filter material layer 26, the water stop layer 27 and the backfill layer 28 are sequentially constructed on the well walls of the injection well 11 and the monitoring well 21 from bottom to top, and the filter material layer 26, the water stop layer 27 and the backfill layer 28 of the injection well 11 are consistent with the filter material layer 26, the water stop layer 27 and the backfill layer 28 of the monitoring well 21 in layer height. The wall of the injection well 11 is provided with an injection well screen 12, the wall of the monitoring well 21 is provided with a monitoring well screen 22, and both the injection well screen 12 and the monitoring well screen 22 are used for preventing the packing from collapsing.
The medicine injection part comprises a medicine injection pipe 8, a flower tube 9, an upper blocking device 19a and a lower blocking device 19b. The injection pipe 8 extends into the injection well 11 for feeding into the injection well 11 a chemical solution (which may be a sodium chloride solution) which acts as a tracer for detecting the soil layer influence radius. The perforated pipe 9 is connected to the lower extreme of annotating the pencil 8, goes up separation ware 19a and installs respectively in the upper end and the lower extreme of perforated pipe 9 with lower separation ware 19b, goes up separation ware 19a and lower separation ware 19b and is used for implementing location and sealed with the wall of a well of injection well 11, and then makes and inject the medicine layer (or being called the injection space) to inject between separation ware 19a and the lower separation ware 19b, and like this, the liquid medicine flows out from perforated pipe 9 to the soil layer that the medicine layer that upper separation ware 19a and lower separation ware 19b inject corresponds.
The liquid medicine required by the medicine injection tube 8 is provided by a medicine supply mechanism, which comprises: the device comprises a medicament tank 1, a medicament injection pump 4, a first valve 3, a second valve 5, a pressure gauge 6 and a flowmeter 7. The liquid medicine has been stored among the medicament jar 1, this liquid medicine carries out the intensive mixing through the agitator 2 of installing in medicament jar 1, injection pump 4 is arranged in drawing the liquid medicine and supplying the liquid medicine to injection pipe 8 in medicament jar 1, first valve 3 sets up on the pipeline between medicament jar 1 and injection pump 4 with the liquid medicine flow direction injection pump 4 that is arranged in controlling medicament jar 1, second valve 5 sets up on the pipeline between injection pump 4 and injection pipe 8 with being arranged in controlling the liquid medicine and flowing to injection pipe 8 from injection pump 4, manometer 6 is used for monitoring the pressure of the liquid medicine of flow direction injection pipe 8, flowmeter 7 is used for detecting the flow that flows in the liquid medicine that will inject pipe 8.
Go up separation ware 19a and lower separation ware 19b and constitute by disc main part and the annular cavity rubber ring 20 that is located disc main part periphery, make annular cavity rubber ring 20 inflation through ventilating to annular cavity rubber ring 20, and then make separation ware and injection well 11 sealed location, in order to inject the injection layer, and through making annular cavity rubber ring 20 gassing and relieve with injection well 11 sealed and location, make injection pipe 8 drive floral tube 9 can adjust the degree of depth, and then realize the purpose of injecting the liquid medicine to the soil layer of the different degree of depth.
The gas supply mechanism is used to provide gas to the baffle for inflating the annular hollow rubber ring 20 of the baffle. The air supply mechanism comprises an air compressor 13, an air storage tank 15, an air injection pipe 18, an air pressure detector 17, a third valve 14 and a fourth valve 16; the air compressor 13 is used for providing pressure gas to the gas storage tank 15, the gas injection pipe 18 extends into the injection well 11 and is communicated with the annular hollow rubber ring 20 of the upper blocker 19a and the lower blocker 19b, the gas storage tank 15 is used for supplying gas to the gas injection pipe 18, the third valve 14 is arranged on a pipeline between the air compressor 13 and the gas storage tank 15 and used for controlling the air compressor 13 to supply gas to the gas storage tank 15, the fourth valve 16 is arranged on a pipeline between the gas storage tank 15 and the gas injection pipe 18 and used for controlling the gas storage tank 15 to supply gas to the gas injection pipe 18, and the gas pressure detector 17 is used for monitoring the pressure of the injected gas.
The conductivity electrode 23 is used as a liquid medicine detector, is arranged in the monitoring well 21 and is consistent with the depth of the floral tube 9, is used for monitoring the diffusion radius of the liquid medicine and further obtaining the data of the influence radius of the soil layer, and is electrically connected with the controller 24 on the ground 25 for data exchange.
Preferably, a graduated scale 10 is arranged on the outer tube wall of the drug injection tube 8 for obtaining the depth of the flower tube 9, and further, the soil layer for the test is determined.
The following describes the test procedures for performing the tests using the present system.
(1) Information such as pollution types, pollution areas, pollution depths, pollution depth ranges, soil layer distribution, groundwater levels and the like of polluted land blocks are obtained through data investigation and site exploration, a test system area is arranged in the pollution range, the injection well 11 and the injection well screen pipe 12 thereof, the monitoring well 21 and the monitoring well screen pipe 22 thereof are designed, after the injection well 11 and the monitoring well 21 are installed, the well wall external filler is filled from bottom to top, the filter material layer 26 is made of quartz sand which is good in sphericity and roundness and free of pollution, the water stop layer 27 is made of dry bentonite, and the backfill layer 28 is made of concrete slurry as a backfill material. And a plurality of monitoring wells 21 with different intervals with the injection well 11 are arranged, the wells are washed after the wells are built, and the conductivity electrodes 23 in the monitoring wells 21 are installed one day after the wells are washed and are connected with a controller 24.
(2) According to the soil layer or pollution depth test range, a flower tube 9 is arranged at the lower end of a pesticide injection tube 8, an upper separator 19a is arranged at the top of the flower tube 9, a lower separator 19b is arranged at the bottom of the flower tube 9, and an annular hollow rubber ring 20 is arranged outside the separators; the upper barrier 19a and the lower barrier 19b are connected with the gas injection pipe 18; after the medicament tank 1, the stirrer 2, the first valve 3, the medicament injection pump 4, the second valve 5, the pressure gauge 6 and the flow meter 7 are connected, the mixture is installed and fixed on the ground 25 and is connected with the medicament injection pipe 8; after the air compressor 13, the third valve 14, the air storage tank 15 and the fourth valve 16 are connected in sequence, the air compressor is fixedly installed on the ground 25 and connected with the air injection pipe 18, and the air pressure detector 17 is also connected with the air injection pipe 18.
(3) Through observing graduated scale 10 on the injection pipe 8, will connect and the injection pipe 8 and the gas injection pipe 18 that the equipment was accomplished are perpendicularly arranged in injection well 11 target degree of depth department, open air compressor machine 13, to the gas injection in annular hollow rubber ring 20, injection pipe 8 accomplishes the fixed of injection well 11 after the gas injection inflation, and the floral tube 9 and last baffler 19a, lower baffler 19b of injection pipe 8 lower extreme form the injection layer.
(4) Sodium chloride and tap water are added into the agent tank 1, a sodium chloride solution is formed after the sodium chloride and the tap water are stirred by the stirrer 2, each component of the testing system is started, the sodium chloride solution is injected into the injection well 11 under fixed pressure, the conductivity change of each monitoring well 21 is observed, and the change is compared and analyzed with the conductivity background value of underground water in a testing area, so that the influence radius of the agent in the testing depth range is obtained.
(5) After the test of the influence radius of the medicament in a certain test depth is completed, the annular hollow rubber ring 20 can be deflated, each monitoring well 21 is washed again, after the water level and the conductivity are stable, the depth of the medicament injection pipe 8 in the injection well 11 is continuously adjusted, the previous steps are repeated to carry out the test, and further the medicament diffusion radius data in different soil layers (or called pollution depths) are obtained.
The utility model provides an in-situ injection influences radius test system advantage lies in:
1. the system can utilize the same injection well 11 to complete the radius test of the influence of the medicament on different soil layers, and further save the well construction cost.
2. This test system uses sodium chloride solution as the tracer, injects influence scope through detecting groundwater conductivity reaction, and injects the diffusion range of the different degree of depth of test in same mouthful of injection well 11, effectively avoids not having the pertinence ground in polluting the depth range and injects the medicament, does benefit to accurate restoration contaminated soil and groundwater.
The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the protection scope of the present invention is defined by the claims. Various modifications and equivalents of the invention can be made by those skilled in the art within the spirit and scope of the invention, and such modifications and equivalents should also be considered as falling within the scope of the invention.
Claims (10)
1. An in-situ bolus impact radius test system, comprising:
an injection well with a depth greater than the depth of the lowest soil layer to be monitored;
a monitoring well located at a periphery of the injection well and having a depth coincident with the injection well;
the injection part comprises an injection pipe extending into the injection well, a flower pipe connected to the lower end of the injection pipe, and an upper separator and a lower separator which are respectively arranged at the upper end and the lower end of the flower pipe, wherein the upper separator and the lower separator define an injection layer so that liquid medicine is diffused to a soil layer corresponding to the injection layer;
the medicine supply mechanism is connected with the upper end of the medicine injection pipe and used for providing liquid medicine for the medicine injection pipe;
and the liquid medicine detector extends into the monitoring well and is consistent with the depth of the injection layer, and the liquid medicine detector is used for monitoring the influence radius of liquid medicine on the soil layer where the injection layer is located.
2. The in situ dose radius of influence test system of claim 1,
the upper blocking device and the lower blocking device respectively comprise a disc-shaped main body and an annular hollow rubber ring positioned on the periphery of the disc-shaped main body;
the in-situ chemical injection influence radius test system further comprises an air supply mechanism, wherein the air supply mechanism is used for inflating and deflating the annular hollow rubber ring;
when the medicine injection depth needs to be adjusted, the annular hollow rubber ring is deflated, so that the medicine injection tube drives the floral tube to lift;
when the adjusted soil layer is required to be injected with the chemicals, the air supply mechanism inflates the annular hollow rubber ring, and the annular hollow rubber ring expands to seal and position the upper barrier and the lower barrier with the injection well.
3. The in-situ chemical injection influence radius test system according to claim 1, wherein a filter material layer, a water stop layer and a backfill layer are sequentially constructed on the well walls of the injection well and the monitoring well from bottom to top, and the filter material layer, the water stop layer and the backfill layer of the injection well are consistent with the filter material layer, the water stop layer and the backfill layer of the monitoring well in layer height.
4. The in situ dose impact radius test system of claim 1, wherein the walls of the injection well and the monitoring well are each provided with a screen.
5. The in situ dose impact radius test system of claim 1, wherein the drug solution detector is a conductivity electrode.
6. The in-situ chemical injection radius-of-influence test system of claim 1, wherein the chemical supply mechanism comprises a chemical tank, a chemical injection pump, a flow meter, a pressure gauge and a valve, the chemical injection pump pumps chemical to the chemical tank and supplies the chemical to the chemical injection tube, the flow meter is used for measuring the flow rate of the chemical supplied to the chemical injection tube, the pressure gauge is used for monitoring the pressure of the chemical supplied to the chemical injection tube, and the valve is used for controlling the chemical supply to the chemical injection tube.
7. The in-situ chemical injection radius of influence test system of claim 2, wherein the gas supply mechanism comprises a gas storage tank, a gas injection pipe, a gas pressure detector and a valve; the gas injection pipe stretch into to in the injection well and with go up the baffler with the annular cavity rubber ring intercommunication of baffler down, the gas holder is used for to gas injection pipe confession gas, the pressure detector is used for monitoring the pressure of injected gas, the valve is used for control to the gas injection pipe air feed.
8. The in-situ chemical injection radius of influence test system of claim 7, wherein the gas supply mechanism further comprises an air compressor for providing pressurized gas to the gas storage tank.
9. The in-situ chemical injection influence radius test system of claim 1, wherein a graduated scale is further arranged on the outer tube wall of the chemical injection tube to determine the depth of the chemical injection layer.
10. The system for testing influence radius of in-situ chemical injection according to claim 6, wherein an agitator is provided in the chemical tank for mixing the chemical solution in the chemical tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202221132095.9U CN217665396U (en) | 2022-05-11 | 2022-05-11 | In-situ medicine injection influence radius test system |
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| CN202221132095.9U CN217665396U (en) | 2022-05-11 | 2022-05-11 | In-situ medicine injection influence radius test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117102223A (en) * | 2023-08-28 | 2023-11-24 | 中南大学 | Injection, monitoring and detection integrated repairing equipment and method for heavy metal pollution site |
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2022
- 2022-05-11 CN CN202221132095.9U patent/CN217665396U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117102223A (en) * | 2023-08-28 | 2023-11-24 | 中南大学 | Injection, monitoring and detection integrated repairing equipment and method for heavy metal pollution site |
| CN117102223B (en) * | 2023-08-28 | 2024-04-30 | 中南大学 | Injection, monitoring and detection integrated repairing equipment and method for heavy metal pollution site |
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