Automatic control device for extraction and injection

Abstract

The utility model relates to the technical field of soil and groundwater remediation, in particular to an automatic control device for extracting and injecting chemicals, which comprises an automatic extracting and injecting component, the automatic extracting and injecting component comprises bentonite, filter sand, a shaft, a precipitation pipe, an extracting well and a monitoring well, the filter sand is fixedly connected with the bentonite and is positioned below the bentonite, the shaft is fixedly connected with the filter sand, and the precipitation pipe is positioned below the extracting well. The bentonite is arranged in the well and located below the filter sand, the precipitation pipe is fixedly connected with the well and located below the well, the extraction well is arranged above the bentonite, the monitoring well is arranged above the bentonite, and the monitoring well is arranged on one side of the extraction well. Therefore, on the premise that the remediation effect is guaranteed, the problems that underground water in the phreatic bed is poor in liquidity, pollution distribution is not uniform, and the labor cost is too high in the actual remediation process are effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to soil and groundwater remediation technical field especially, relate to a kind of automatic control device of extraction injection. BACKGROUND

[0002] The commonly used technology of contaminated groundwater remediation includes extraction treatment technology and in-situ chemical oxidation / reduction technology, due to poor groundwater mobility in phreatic aquifer, uneven pollution distribution, in practical application, usually two technologies are combined, i.e. extraction well and injection well are constructed simultaneously, contaminated groundwater is continuously extracted through extraction well, groundwater flow field is changed, groundwater mobility is increased, and remediation reagent is injected through injection well, remediation reagent diffuses to the whole remediation area through changed flow, so as to achieve the purpose of remediation of contaminated groundwater.

[0003] During the operation of groundwater extraction+injection system, groundwater level, pollutant types in groundwater and pollutant concentration are constantly changing, which requires continuous adjustment of operating parameters of system equipment, including extraction time, injection time of reagent, concentration and quantity of injected reagent, so that high requirements are put forward for operators of on-site system operation, water level and pollutant concentration need to be measured continuously, and then equipment operating parameters are adjusted according to test results, which is complicated, complex, error-prone and high in labor cost.

[0004] To solve the above problems, an automatic control device for extraction and injection is provided. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing an automatic control device for extraction and injection, which solves the problem of high labor cost in actual remediation process due to poor groundwater mobility in phreatic aquifer and uneven pollution distribution.

[0006] To achieve the above purpose, an automatic control device for extraction and injection provided by the utility model includes an automatic extraction and injection assembly, the automatic extraction and injection assembly includes bentonite, sand filter, well shaft, sedimentation pipe, extraction well and monitoring well, the sand filter is fixedly connected with the bentonite and located below the bentonite, the well shaft is fixedly connected with the sand filter and located below the sand filter, the sedimentation pipe is fixedly connected with the well shaft and located below the well shaft, the extraction well is arranged above the bentonite, the monitoring well is arranged above the bentonite, and the monitoring well is arranged on one side of the extraction well.

[0007] The automatic extraction and injection assembly further includes a water extraction well and an injection well, the water extraction well is fixedly connected with the extraction well and located below the extraction well, the injection well is arranged above the bentonite, and the injection well is arranged on the side of the monitoring well away from the extraction well.

[0008] The water pumping well further comprises a water pumping pipe, a water pumping cable and a water pumping deep well pump, the water pumping pipe is arranged inside the shaft through the bentonite and the sand filter, the water pumping deep well pump is fixedly connected with the water pumping pipe and located below the water pumping pipe, and the water pumping deep well pump is arranged between the shaft and the sedimentation pipe, the water pumping cable is arranged on one side of the water pumping pipe, and the lower end of the water pumping cable is fixedly connected with the water pumping deep well pump and located above the water pumping deep well pump.

[0009] The water pumping well further comprises a water pumping liquid level meter, a water pumping starting point and a water pumping stopping point, the water pumping liquid level meter is arranged on the side, away from the water pumping cable, of the water pumping pipe, the water pumping starting point is fixedly connected with the water pumping liquid level meter and located above the water pumping liquid level meter, and the water pumping stopping point is fixedly connected with the water pumping liquid level meter and located below the water pumping liquid level meter.

[0010] The injection well comprises an injection pipe, an injection cable and an injection deep well pump, the injection pipe is arranged inside the shaft through the bentonite and the sand filter, the injection deep well pump is fixedly connected with the injection pipe and located below the injection pipe, and the injection deep well pump is arranged between the shaft and the sedimentation pipe, the injection cable is arranged on one side of the injection pipe, and the lower end of the injection cable is fixedly connected with the injection deep well pump and located above the injection deep well pump.

[0011] The injection well further comprises an injection liquid level meter, an injection starting point and an injection stopping point, the injection liquid level meter is arranged on the side, away from the injection cable, of the injection pipe, the injection starting point is fixedly connected with the injection liquid level meter and located above the injection liquid level meter, and the injection stopping point is fixedly connected with the injection liquid level meter and located below the injection liquid level meter.

[0012] The automatic control device for pumping and injecting medicine comprises an automatic pumping and injecting assembly, the automatic pumping and injecting assembly comprises bentonite, sand filter, shaft, sedimentation pipe, pumping well and monitoring well, the sand filter is fixedly connected with the bentonite and located below the bentonite, the shaft is fixedly connected with the sand filter and located below the sand filter, the sedimentation pipe is fixedly connected with the shaft and located below the shaft, the pumping well is arranged above the bentonite, the monitoring well is arranged above the bentonite, and the monitoring well is arranged on one side of the pumping well, since the automatic pumping and injecting assembly is additionally arranged, the problem that the artificial cost is too high due to poor flowability of underground water in the phreatic zone and uneven pollution distribution in the actual repair process can be effectively solved under the premise of ensuring the repair effect. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0014] Figure 1 is the well site map of the whole present application.

[0015] Figure 2 is the well site pipeline map of the whole present application.

[0016] Figure 3 is the sectional view of the pumping well of the present application.

[0017] Figure 4 is the sectional view of the injection well of the present application.

[0018] 1-extraction well, 2-monitoring well, 3-pumping well, 301-pumping water pipe, 302-pumping cable, 303-pumping deep well pump, 304-pumping liquid level meter, 305-pumping starting point, 306-pumping stopping point, 4-injection well, 401-injection water pipe, 402-injection cable, 403-injection deep well pump, 404-injection liquid level meter, 405-injection starting point, 406-injection stopping point, 5-bentonite, 6-sand filter, 7-well, 8-settling pipe. DETAILED DESCRIPTION

[0019] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0020] Please refer to Figures 1-4 , Figure 1 is the well site map of the whole present application, Figure 2 is the well site pipeline map of the whole present application, Figure 3 is the sectional view of the pumping well of the present application, Figure 4 is the sectional view of the injection well of the present application.

[0021] The utility model provides an automatic control device of extraction injection medicine includes automatic injection component, the automatic injection component includes bentonite 5, filter sand 6, shaft 7, sedimentation tube 8, extraction well 1, monitoring well 2, pumping well 3 and injection well 4, the pumping well 3 still includes pumping water pipe 301, pumping cable 302 line, pumping deep well pump 303, pumping level meter 304, pumping start point 305 and pumping stop point 306, the injection well 4 includes injection water pipe 401, injection cable line 402, injection deep well pump 403, injection level meter 404, injection start point 405 and injection stop point 406, through preceding scheme, the problem of high labor cost in actual repair process because of poor groundwater mobility in phreatic aquifer and uneven pollution distribution is solved, and it can be understood that, preceding scheme can be used in soil or groundwater repair, the extraction well 1, the injection well 4, the monitoring well 2 and the reagent configuration system, the extraction well 1 and the injection well 4, one pumping level meter 304 and injection level meter 404 are arranged in each well respectively, the start and stop of pumping pump and reagent injection pump are controlled by pumping level meter 304 and injection level meter 404, the monitoring well 2 is provided with automatic detection system, the type and concentration of pollutants in groundwater are monitored in real time, the monitoring result is directly uploaded to the central computer through the monitoring well 2, after the computer carries out summary analysis to the detection result, corresponding injection reagent type, concentration, injection rate and other parameters are calculated, the reagent concentration and injection rate in the reagent barrel are automatically adjusted by the reagent configuration system according to the calculated system operation parameters, thereby realizing the automatic repair of polluted groundwater extraction injection medicine.The pollution is unevenly distributed, and the labor cost is too high in the actual remediation process.

[0022] For this specific embodiment, the sand filter 6 is fixedly connected with the bentonite 5 and located below the bentonite 5, the shaft 7 is fixedly connected with the sand filter 6 and located below the sand filter 6, the sedimentation pipe 8 is fixedly connected with the shaft 7 and located below the shaft 7, the extraction well 1 is arranged above the bentonite 5, the monitoring well 2 is arranged above the bentonite 5, and the monitoring well 2 is arranged on one side of the extraction well 1, when the soil or groundwater is remediated, the extraction well 1, the injection well 4, the monitoring well 2 and the reagent configuration system, the extraction well 1 and the injection well 4, one extraction water level meter 304 and one injection water level meter 404 are arranged in each well respectively, the start and stop of the water extraction pump and the reagent injection pump are controlled by the extraction water level meter 304 and the injection water level meter 404, the automatic detection system is arranged in the monitoring well 2, and the types and concentrations of pollutants in the groundwater are monitored in real time.

[0023] In the specific embodiment, the extraction well 3 is fixedly connected with the extraction well 1 and located below the inside of the extraction well 1, the injection well 4 is arranged above the bentonite 5, and the injection well 4 is arranged on the side of the monitoring well 2 away from the extraction well 1, after the corresponding injection reagent type, concentration, injection rate and other parameters are calculated, the reagent amount in the reagent barrel is automatically adjusted by the reagent configuration system according to the calculated system operation parameters, the concentration and injection rate of the injection reagent are adjusted, so as to realize the automatic remediation of the extraction and injection of the contaminated groundwater.

[0024] Secondly, the water extraction pipe 301 is arranged inside the shaft 7 through the bentonite 5 and the sand filter 6, the water extraction deep well pump 303 is fixedly connected with the water extraction pipe 301 and located below the water extraction pipe 301, and the water extraction deep well pump 303 is arranged between the shaft 7 and the sedimentation pipe 8, the water extraction cable 302 is arranged on one side of the water extraction pipe 301, and the lower end of the water extraction cable 302 is fixedly connected with the water extraction deep well pump 303 and located above the water extraction deep well pump, after the preparation of the medicament is completed, the water extraction deep well pump 303 in the water extraction well 3 in the extraction well 1 is started, with the proceeding of the extraction, the water level continuously decreases, when the water level decreases to the set position of the water extraction level gauge 304, the water extraction deep well pump 303 is automatically stopped, the injection deep well pump 403 starts to operate, when the liquid level in the injection well 4 rises to the set position, the injection pump is automatically stopped, when the liquid level in the extraction well 1 also rises to the set position, the liquid level switch automatically starts the injection deep well pump to start water extraction, and the cycle is repeated until the detection data in the monitoring well 2 reaches the design requirement.

[0025] Meanwhile, the water extraction level gauge 304 is arranged on the side of the water extraction pipe 301 away from the water extraction cable 302, the water extraction starting point 305 is fixedly connected with the water extraction level gauge 304 and located above the water extraction level gauge 304, and the water extraction stopping point 306 is fixedly connected with the water extraction level gauge 304 and located below the water extraction level gauge 304.

[0026] In addition, the injection water pipe 401 is arranged inside the shaft 7 through the bentonite 5 and the sand filter 6, the injection deep well pump 403 is fixedly connected with the injection water pipe 401 and located below the injection water pipe 401, and the injection deep well pump 403 is arranged between the shaft 7 and the sedimentation pipe 8, the injection cable 402 is arranged on one side of the injection water pipe 401, and the lower end of the injection cable 402 is fixedly connected with the injection deep well pump 403 and located above the injection deep well pump, after the preparation of the medicament is completed, the water extraction deep well pump 303 in the water extraction well 3 in the extraction well 1 is started, with the proceeding of the extraction, the water level continuously decreases, when the water level decreases to the set position of the water extraction level gauge 304, the water extraction deep well pump 303 is automatically stopped, the injection deep well pump 403 starts to operate, when the liquid level in the injection well 4 rises to the set position, the injection pump is automatically stopped, when the liquid level in the extraction well 1 also rises to the set position, the liquid level switch automatically starts the injection deep well pump to start water extraction, and the cycle is repeated until the detection data in the monitoring well 2 reaches the design requirement.

[0027] The injection liquid level meter 404 is arranged on the side of the injection water pipe 401 away from the injection cable 402, the injection starting point 405 is fixedly connected with the injection liquid level meter 404 and is arranged above the injection liquid level meter 404, and the injection stopping point 406 is fixedly connected with the injection liquid level meter 404 and is arranged below the injection liquid level meter 404.

[0028] When the soil or groundwater is repaired by using the utility model, the extraction well 1, the injection well 4, the monitoring well 2 and the medicament configuration system, the extraction well 1 and the injection well 4, one extraction liquid level meter 304 and one injection liquid level meter 404 are arranged in each well respectively, the starting and stopping of the water extraction pump and the medicament injection pump are controlled by the extraction liquid level meter 304 and the injection liquid level meter 404, the automatic detection system is arranged in the monitoring well 2, the types and the concentration of the pollutants in the groundwater are monitored in real time, the monitoring result is directly uploaded to the central computer through the monitoring well 2, the corresponding injection medicament type, concentration, injection rate and other parameters are calculated after the computer analyzes the detection result, the injection medicament concentration and the injection rate are adjusted by automatically adjusting the medicament concentration in the medicament barrel according to the calculated system operation parameters, so that the automatic repair of the polluted groundwater extraction and injection is realized. First, according to the early investigation result and the technical scheme design requirement, the range of the polluted groundwater repair area and the positions of the extraction well 3, the injection well 4, the monitoring well 2 and the medicament configuration device are determined, the construction work of the extraction well 3, the injection well 4, the monitoring well 2 and the medicament configuration device is started, the extraction liquid level meter 304 and the injection liquid level meter 404, the signal transmission system, the PLC and the central computer control system are started to be installed, before the system is formally operated, the monitoring equipment in the monitoring well 2 and the medicament configuration system are first operated, the initial parameters of the system are set according to the monitoring result, the medicament type, the concentration, the injection rate and other parameters start to configure the injection medicament, after the medicament configuration is completed, the extraction deep well pump 303 in the extraction well 1 is started, with the extraction proceeding, the water level continuously decreases, when the water level decreases to the set position of the extraction liquid level meter 304, the extraction deep well pump 303 is automatically stopped, the injection deep well pump 403 starts to operate, when the liquid level in the injection well 4 rises to the set position, the injection pump is automatically stopped, when the liquid level in the extraction well 1 also rises to the set position, the liquid level switch automatically starts the injection deep well pump to start the water extraction, the cycle is repeated until the detection data in the monitoring well 2 reaches the design requirement, so that the problem that the artificial cost is too high in the actual repair process due to the poor flowability of the groundwater in the phreatic aquifer and the uneven pollution distribution is effectively solved.

[0029] The above disclosed is only a preferred embodiment of the utility model, of course, cannot with this to limit the utility model right scope, the person skilled in the art can understand that the whole or part processes of the above-mentioned embodiment are realized, and the equivalent change made according to the utility model claim still belongs to the range covered by the utility model.

Claims

1. An automatic control device for extraction of injection, characterized in that, it comprises an automatic extraction and injection assembly, the automatic extraction and injection assembly comprises a bentonite, a filter sand, a well, a sedimentation pipe, an extraction well and a monitoring well, the filter sand is fixedly connected with the bentonite and is located below the bentonite, the well is fixedly connected with the filter sand and is located below the filter sand, the sedimentation pipe is fixedly connected with the well and is located below the well, the extraction well is arranged above the bentonite, the monitoring well is arranged above the bentonite, and the monitoring well is arranged on one side of the extraction well.

2. The automatic control device for extraction of injection according to claim 1, characterized in that, the automatic extraction and injection assembly further comprises a water extraction well and an injection well, the water extraction well is fixedly connected with the extraction well and is located below the inside of the extraction well, the injection well is arranged above the bentonite, and the injection well is arranged on the side of the monitoring well away from the extraction well.

3. The automatic control device for extraction of injection according to claim 2, characterized in that, the water extraction well further comprises a water extraction pipe, a water extraction cable and a water extraction deep well pump, the water extraction pipe is arranged in the inside of the well through the bentonite and the filter sand, the water extraction deep well pump is fixedly connected with the water extraction pipe and is located below the water extraction pipe, and the water extraction deep well pump is arranged between the well and the sedimentation pipe, the water extraction cable is arranged on one side of the water extraction pipe, and the lower end of the water extraction cable is fixedly connected with the water extraction deep well pump and is located above the water extraction deep well pump.

4. The automatic control device for extraction of injection according to claim 3, characterized in that, the water extraction well further comprises a water extraction liquid level meter, a water extraction starting point and a water extraction stopping point, the water extraction liquid level meter is arranged on the side of the water extraction pipe away from the water extraction cable, the water extraction starting point is fixedly connected with the water extraction liquid level meter and is located above the water extraction liquid level meter, and the water extraction stopping point is fixedly connected with the water extraction liquid level meter and is located below the water extraction liquid level meter.

5. The automatic control device for extraction of injection according to claim 4, characterized in that, the injection well comprises an injection water pipe, an injection cable and an injection deep well pump, the injection water pipe is arranged in the inside of the well through the bentonite and the filter sand, the injection deep well pump is fixedly connected with the injection water pipe and is located below the injection water pipe, and the injection deep well pump is arranged between the well and the sedimentation pipe, the injection cable is arranged on one side of the injection water pipe, and the lower end of the injection cable is fixedly connected with the injection deep well pump and is located above the injection deep well pump.

6. The automatic control device for extraction of injection according to claim 5, characterized in that, The injection well further comprises an injection liquid level meter, an injection start point and an injection stop point, the injection liquid level meter is arranged on the side of the injection water pipe far away from the injection cable, the injection start point is fixedly connected with the injection liquid level meter and located above the injection liquid level meter, and the injection stop point is fixedly connected with the injection liquid level meter and located below the injection liquid level meter.

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