CN115893552A - Groundwater normal position circulation prosthetic devices - Google Patents

Abstract

The application relates to the technical field of in-situ remediation of underground water pollution, in particular to an in-situ circulating remediation device for underground water, which comprises a power assembly, a water pumping and injecting assembly, a medicament delivery and distribution assembly, an in-well aeration assembly and an automatic control assembly; the power assembly comprises a screw air compressor and an air storage tank, the air storage tank is communicated with an air source distribution box, the water pumping and injecting assembly comprises a pneumatic diaphragm pump and a pneumatic precipitation pump, the pneumatic precipitation pump and the pneumatic diaphragm pump are both communicated with the air source distribution box, the medicament delivery and distribution assembly comprises a medicament tank, the medicament tank is communicated with the pneumatic diaphragm pump, and the pneumatic diaphragm pump can inject medicaments into the circulating well; the aeration component in the well comprises an aeration pipe communicated with the air source distribution box, and an aerator is arranged in the circulating well; the underground water in-situ circulating and repairing integrated device has the advantages that integrated, modularized, skid-mounted and automatic underground water in-situ circulating and repairing integrated equipment can be formed, and an underground water circulating well is combined to form an effect of the underground water in-situ circulating and repairing device.

Description

Groundwater normal position circulation prosthetic devices

Technical Field

The application relates to the technical field of underground water pollution in-situ remediation, in particular to an underground water in-situ circulating remediation device.

Background

Underground water is a precious fresh water resource for human beings, but with the continuous development of the social industrialization process, the underground water pollution is possibly caused by waste water discharge, industrial waste residues, agricultural irrigation and the like, so that the problem of water resource shortage which is originally short is more serious, and the serious threats and challenges are formed in the aspects of human living health, food safety, drinking water safety and the like, and the underground water pollution remediation is an environmental problem which is currently concerned.

The existing groundwater remediation technologies for pollution are mainly divided into ex-situ remediation technologies and in-situ remediation technologies. The ex-situ remediation technology is a technology for pumping polluted underground water to the surface for treatment. The technology has large treatment capacity and higher treatment efficiency in a short period, but the phenomena of pollutant concentration tailing, rebound and the like generally exist in long-term application, so that the treatment efficiency is finally reduced, and the treatment cost is increased. The in-situ remediation technology is widely applied to the field of groundwater pollution remediation today by virtue of the advantages of thorough remediation, multiple pollutant treatment types, relatively short time, relatively low cost and the like.

The in-situ remediation technology for the underground water circulating well is a multiple remediation technology which can be coupled with in-situ air disturbance, vapor extraction, biological remediation, chemical oxidation, electrochemical remediation and the like, can simultaneously realize the in-situ remediation technology for a polluted site for removing volatile organic pollutants (VOCs), semi-volatile organic pollutants (SVOCs), non-aqueous phase liquids (NAPLs) and partial inorganic pollutants in the underground environment, and has the remarkable advantages of small occupied area, wide application range, high efficiency, low cost and the like.

According to the underground water circulating well in-situ restoration technology recorded in the related technology, the research and the start of China in the technical field are late, the good treatment effect of the technology is determined on the laboratory simulation research level, but the application and the restoration cases on the actual site engineering level are few, the main equipment of the circulating well technology depends on foreign purchase, and the circulating well integrated equipment which is independently researched and developed is lacked.

Disclosure of Invention

In order to form integration, modularization, sled dress ization, automatic groundwater normal position circulation restoration integration equipment, and form a groundwater normal position circulation prosthetic devices in combination groundwater circulation well, this application provides a groundwater normal position circulation prosthetic devices.

The application provides an underground water normal position circulation prosthetic devices adopts following technical scheme:

an in-situ circulating repair device for underground water comprises a circulating well, a power assembly, a water pumping and injecting assembly, a medicament delivery and distribution assembly, an in-well aeration assembly and an automatic control assembly; the power assembly is used for providing a power source and comprises a gas storage tank and a screw air compressor, and a main gas pipeline is communicated between the screw air compressor and the gas storage tank; the gas storage tank is communicated with a gas source distribution box for distributing gas; the water pumping and injecting assembly comprises a pneumatic diaphragm pump for injecting water and a pneumatic water reducing pump for pumping water, the pneumatic water reducing pump and the pneumatic diaphragm pump are both communicated with the air source distribution box, a water injection pipe is communicated between the pneumatic diaphragm pump and the circulating well, and the pneumatic water reducing pump is positioned at the bottom of the circulating well; the medicament delivery and distribution assembly comprises a medicament tank for dissolving and distributing a medicament, the medicament tank is communicated with the pneumatic diaphragm pump, and the pneumatic diaphragm pump can inject the medicament into the circulating well; the aeration component in the well is used for adjusting the dissolved oxygen value in the circulating well, the aeration component in the well comprises an aeration pipe communicated with the air source distribution box, one end of the aeration pipe, which is close to the circulating well, is provided with an aerator, and the aerator is positioned in the circulating well; the automatic control assembly is used for overall tuning.

By adopting the technical scheme, when in use, high-pressure gas generated by the screw air compressor is firstly stored in the gas storage tank through the main gas pipeline, and the gas storage tank is connected with the gas source distribution box and distributed to each component; the pumping and injection assembly can complete pumping and injection work, the medicament delivery and distribution assembly can convey dissolved and distributed medicaments into an injection well through the pneumatic diaphragm pump so as to realize decontamination treatment of underground water, the aeration assembly in the well can adjust the dissolved oxygen value of the underground water, and each assembly can finish required work respectively according to work requirements.

Optionally, the automatic control assembly includes a controller, the water injection pipe is provided with a water injection flow meter and a first electromagnetic valve for detecting flow, the water injection flow meter and the first electromagnetic valve are both coupled to the controller, and when the flow in the water injection pipe is lower than a set flow value, the controller controls the opening of the first electromagnetic valve to increase; and when the flow in the water injection pipe is higher than a set flow value, the controller controls the opening degree of the first electromagnetic valve to be reduced.

By adopting the technical scheme, the specific operation time and the flow size need to be set externally or the parameters are preset for time sequence control, and the opening of the electromagnetic valve can be adjusted by the controller to realize constant flow operation if the water injection flow of the system in different time periods needs to be adjusted.

Optionally, the pneumatic precipitation pump is communicated with a water outlet pipe, a water outlet flowmeter is arranged on the water outlet pipe, the pneumatic precipitation pump is provided with a frequency converter, the water outlet flowmeter and the frequency converter are both coupled with the controller, and when the flow rate is higher than a set flow rate, the controller reduces the operating frequency of the frequency converter; and when the flow is lower than the set flow value, the controller increases the running frequency of the frequency converter.

By adopting the technical scheme, the specific running time and the flow size need to be set externally or the parameters are preset for sequential control, and the pumping flow of the system in different time periods can be adjusted as required, so that the frequency converter can be adjusted through the controller to realize the change of the corresponding parameters.

Optionally, a liquid level meter is arranged in the medicament tank, the medicament tank is communicated with a medicament injection pump, the liquid level meter and the medicament injection pump are both coupled to the controller, and when the liquid level in the medicament tank is at a low liquid level, the controller controls the medicament injection pump to operate; when the liquid level in the medicament tank is at a high liquid level, the controller controls the medicament injection pump to stop.

By adopting the technical scheme, the magnetic turning plate liquid level meter is arranged in the medicament tank, the liquid level height in the tank can be visually and accurately displayed, and the pump is automatically stopped when the medicament in the tank is at a preset low liquid level through a remote transmission signal, so that the low liquid level protection function is realized.

Optionally, the aeration assembly in the well further comprises an dissolved oxygen meter, a second electromagnetic valve is arranged on the aeration pipe, the second electromagnetic valve and the dissolved oxygen meter are both coupled to the controller, and when the dissolved oxygen value is higher than the dissolved oxygen preset value, the controller controls the opening of the second electromagnetic valve to be smaller; when the dissolved oxygen value is lower than the dissolved oxygen preset value, the controller controls the opening of the second electromagnetic valve to be increased.

By adopting the technical scheme, the opening of the second air inlet electromagnetic valve of the aeration system is adjusted according to the change of the dissolved oxygen value in the well during the operation of the system so as to realize the stability of the dissolved oxygen value in the well.

Optionally, a pressure gauge is arranged on the aerator pipe, and the pressure gauge is an oil-filled pressure gauge.

By adopting the technical scheme, the oil-filled pressure gauge can avoid pointer vibration or violent jitter caused by impact-resistant action due to vibration of an air pipeline, the filling liquid can enable the measuring instrument to have buffering and shock-resistant performances, loss of components is reduced, and condensation can be prevented.

Optionally, an aeration flow meter for metering the flow rate of aeration air is further arranged on the aeration pipe, and the pressure gauge is located between the aeration flow meter and the second electromagnetic valve.

By adopting the technical scheme, the vortex shedding flowmeter is mainly used for measuring the flow of the medium fluid of the industrial pipeline, adopts the piezoelectric stress sensor and has high reliability.

Optionally, a return line is arranged on the water injection pipe.

Through adopting above-mentioned technical scheme, return line sets up on the water injection pipe and is located pneumatic diaphragm pump after, return line can be convenient for adjust the medicament flow and strengthen the medicament stirring.

Optionally, a back pressure valve is arranged on the water injection pipe, the back pressure valve is matched with a pulse damper, and the back pressure valve is located between the return line and the flowmeter.

Through adopting above-mentioned technical scheme, the back pressure valve is used for keeping the pressure of pump export invariable, and cooperation pulse damper reduces the destruction of water hammer to the system, and the undulant peak value of reduction speed protects pipe fittings such as pipeline, elbow, joint, makes the normal output flow of injection pump.

Optionally, a check valve is arranged on the water injection pipe, and the check valve is located between the return line and the pneumatic diaphragm pump.

Through adopting above-mentioned technical scheme, the check valve is used for preventing the liquid backward flow to play the guard action.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the application provides an integrated device comprising underground water in-situ circulation power and a coupling chemistry-air disturbance-enhanced bioremediation technology, which mainly comprises a power module, a water pumping and injecting module, a medicament delivery and distribution module and an aeration module in a well, and is combined with an underground water circulation well to form the underground water in-situ circulation remediation device, so that the underground water pollution problem under various conditions can be solved, and the integrated device has the advantages of small environmental disturbance, high treatment efficiency, low remediation cost and the like;

2. be provided with automatic control module in this application, automatic control module passes through software and hardware and constructs programmable logic control device and system, realize manual control on the spot, long-range unit control, long-range online control, and can be along with equipment operation, upgrade optimization step by step, automatic control module and manometer, the level gauge, electromagnetic flowmeter, cooperation such as solenoid valve is used, pumping device and system can move with water injection device and system while, operating duration and flow need outside to set for or the parameter is preset and is carried out time sequence control, device and system pump in different time slots, the water injection flow is as required to change, the accessible is adjusted automatic control module operating parameter and is realized, in order to realize automatic operation, improve the convenience.

Drawings

FIG. 1 is a schematic structural diagram of an in-situ groundwater circulation remediation device according to the present application;

FIG. 2 is a top view of the groundwater in-situ circulation remediation device of the present application;

FIG. 3 is a schematic structural diagram of a stirring assembly of the groundwater in-situ circulation remediation device.

Description of the reference numerals: 1. a circulation well; 2. a power assembly; 201. a screw air compressor; 202. a gas storage tank; 203. a main gas line; 3. a water pumping and injecting component; 301. a pneumatic diaphragm pump; 302. a pneumatic precipitation pump; 303. a water injection pipe; 304. a water outlet pipe; 4. a medicament delivery assembly; 401. a medicament canister; 402. a liquid inlet pipe; 403. a drug injection pump; 5. an aeration assembly in the well; 501. an aeration pipe; 502. an aerator; 503. an oxygen dissolving instrument; 7. a gas source distribution box; 8. a control pipeline; 9. a water injection flow meter; 10. a first solenoid valve; 11. a water outlet flow meter; 12. a liquid level meter; 13. a stirring assembly; 1301. a drive motor; 1302. a rotating shaft; 1303. a stirring wheel; 14. a return line; 15. a check valve; 16. a back pressure valve; 17. a pulse damper; 18. a second solenoid valve; 19. a pressure gauge; 20. an aeration flow meter.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses groundwater normal position circulation prosthetic devices, refer to fig. 1 and fig. 2, groundwater normal position circulation prosthetic devices includes circulation well 1,power component 2 for providing the power supply, be used for the water injection and draw water pump water injection component 3, be used for the medicament delivery anddistribution subassembly 4 of groundwater decontamination, be used for adjusting groundwater dissolved oxygen value inaeration subassembly 5 and the automatic control subassembly (not shown in the figure), the automatic control subassembly can tune, control each subassembly.

Thepower assembly 2 can generate high-pressure gas for each assembly to use, the water pumping and injecting assembly 3 can complete the water pumping and injecting work in the circulating well 1, the reagent delivery anddistribution assembly 4 can realize the decontamination treatment of underground water, theaeration assembly 5 in the well can adjust the dissolved oxygen value of the underground water, according to the work requirement, each assembly can respectively complete the required work, the automatic control assembly constructs a programmable logic control system through software and hardware, thus, the power system of the underground water in-situ circulation is realized, the chemical oxidation-air disturbance-reinforced bioremediation technology is coupled, the integrated equipment of integration, modularization, skid-mounting and automatic underground water in-situ circulation restoration is formed, the underground water circulating well 1 is connected in parallel to form an underground water in-situ circulation restoration system, the device and the system have multiple functions and strong practicability, and the problems of various types of underground water can be solved.

Specifically, referring to fig. 1 and 2, thepower assembly 2 includes ascrew air compressor 201 and anair storage tank 202 for generating high-pressure gas, and amain gas pipeline 203 is communicated between thescrew air compressor 201 and theair storage tank 202, so that the high-pressure gas generated by thescrew air compressor 201 is stored in theair storage tank 202 through themain gas pipeline 203, so as to be used by the pumping and injecting assembly 3, the medicament delivery anddistribution assembly 4 and theaeration assembly 5 in the well at any time. In order to distribute high-pressure gas to each component, thegas storage tank 202 is communicated with a gassource distribution box 7, and the gassource distribution box 7 can respectively supply gas to the water pumping and injecting component 3, the medicament delivery anddistribution component 4 and theaeration component 5 in the well according to working requirements.

It can be understood that, in this embodiment, adopt high-pressure gas as the power supply, on the one hand, the air acquires convenience, pollution-free, and gas moves soon as the power supply operation moreover, and on the other hand combines each subassembly job features, and gas can have higher convenience as the power supply.

Referring to fig. 1 and 2, the water pumping and injecting assembly 3 includes apneumatic diaphragm pump 301 for injecting water into the circulation well 1 and a pneumaticwater descending pump 302 for pumping water out of the circulation well 1, the pneumaticwater descending pump 302 and thepneumatic diaphragm pump 301 are both communicated with an airsource distribution box 7, acontrol pipeline 8 is communicated between thepneumatic diaphragm pump 301 and the airsource distribution box 7, awater injection pipe 303 is communicated between thepneumatic diaphragm pump 301 and the circulation well 1, the pneumaticwater descending pump 302 is located at the bottom of the circulation well 1, and the pneumaticwater descending pump 302 is connected with awater outlet pipe 304. Thepneumatic diaphragm pump 301 is filled with high-pressure gas for groundwater injection, the pneumatic water-reducingpump 302 is arranged at the bottom of the well, and the high-pressure gas is distributed to the pneumatic water-reducingpump 302 through the gassource distribution box 7 for groundwater pumping.

Certainly, the circulating well 1 and the pneumatic water-loweringpump 302 can be provided with a plurality of pumps, and according to the working requirement, the circulating well 1 and the pneumatic water-loweringpump 302 can be adjusted to meet the working requirement, and meanwhile, the underground water in-situ circulating repair effect is optimal.

Referring to fig. 1 and 2, the automatic control assembly mainly includes a controller (not shown in the figure), in this embodiment, the controller may be a PLC controller, awater injection flowmeter 9 for detecting flow rate is disposed on thewater injection pipe 303, a firstelectromagnetic valve 10 is disposed on thecontrol pipeline 8, both thewater injection flowmeter 9 and the firstelectromagnetic valve 10 are coupled to the controller, a water injection flow rate value is preset in the controller, and when the flow rate in thewater injection pipe 303 is lower than a set water injection flow rate value, the controller controls the opening degree of the firstelectromagnetic valve 10 to increase; when the flow rate in thewater injection pipe 303 is higher than the set water injection flow rate value, the controller controls the opening degree of the firstelectromagnetic valve 10 to be smaller, otherwise, the opening degree of the firstelectromagnetic valve 10 is not changed. According to different working time, the water injection flow rate in different time periods may need to be adjusted, and the adjustment of the water injection flow rate can be automatically realized by adjusting the water injection flow rate value in the controller and by the cooperation of the waterinjection flow meter 9 and the firstelectromagnetic valve 10.

Referring to fig. 1 and 2, a wateroutlet flow meter 11 is arranged on awater outlet pipe 304, a frequency converter (not shown in the figure) is arranged in a pneumaticwater descending pump 302, the wateroutlet flow meter 11 and the frequency converter are both coupled with a controller, a water outlet flow value is arranged in the controller, and when the flow is higher than a set water outlet flow, the controller reduces the operation frequency of the frequency converter; when the flow is lower than the set effluent flow value, the controller increases the running frequency of the frequency converter. According to different working time, the water pumping flow in different time periods may need to be adjusted, the frequency converter can change the water pumping flow of the pneumaticdowncast pump 302 by adjusting the water pumping flow value in the controller, and the water pumping amount can be automatically adjusted by matching the water pumping flow meter with the frequency converter.

Referring to fig. 1 and 2, the agent delivery anddistribution assembly 4 comprises anagent tank 401 for dissolving and distributing the agent, theagent tank 401 is communicated with thepneumatic diaphragm pump 301, thepneumatic diaphragm pump 301 can inject the agent into the circulation well 1, the selected agent is added into theagent tank 401 for dissolving and distributing, the airsource distribution box 7 distributes part of air to thepneumatic diaphragm pump 301, and the dissolved and distributed agent is conveyed into the circulation well 1 by thepneumatic diaphragm pump 301 to realize groundwater decontamination treatment.

Referring to fig. 1 and 2, aliquid level meter 12 is installed on amedicament tank 401, themedicament tank 401 is connected with twoliquid inlet pipes 402, the twoliquid inlet pipes 402 are respectively used for connecting clear water and medicament, eachliquid inlet pipe 402 is provided with amedicament injection pump 403, the two medicament injection pumps 403 and theliquid level meter 12 are both coupled with a controller, a low liquid level value and a high liquid level value are arranged in the controller, when the liquid level in themedicament tank 401 is at the low liquid level, the controller controls the medicament injection pumps 403 to operate, and when the liquid level in themedicament tank 401 is at the high liquid level, the controller controls the medicament injection pumps 403 to stop. Theliquid level meter 12 can visually and accurately display the liquid level height in the tank, and can control the liquid level height in themedicament tank 401 through remote signal control so as to realize the low liquid level and high liquid level protection functions.

Referring to fig. 2 and 3, in order to facilitate the injection of clean water and chemicals into the circulation well 1 by thepneumatic diaphragm pump 301, respectively, twochemical tanks 401 are provided in the present embodiment. All be provided with stirringsubassembly 13 on everymedicament jar 401, stirringsubassembly 13 is including fixing the drivingmotor 1301 onmedicament jar 401, and the rigid coupling has apivot 1302 on the output shaft of drivingmotor 1301, and the one end rigid coupling that the drivingmotor 1301 was kept away from topivot 1302 has stirringwheel 1303. The drivingmotor 1301 drives thestirring wheel 1303 to rotate, so that the medicines in themedicine tank 401 are fully mixed.

Referring to fig. 1 and 2, areturn line 14 is provided on thewater injection pipe 303, and thereturn line 14 is located behind thepneumatic diaphragm pump 301, so that the return line facilitates adjusting the flow rate of the medicine and enhancing the stirring of the medicine. Acheck valve 15 is provided on thewater injection pipe 303, thecheck valve 15 being located between thereturn line 14 and thepneumatic diaphragm pump 301, thecheck valve 15 being for preventing the liquid from flowing backward. Thewater injection pipe 303 is further provided with aback pressure valve 16, theback pressure valve 16 is located between thereturn line 14 and thewater injection flowmeter 9, theback pressure valve 16 is matched with a pulse damper 17, theback pressure valve 16 is used for keeping the pressure of the outlet of the pump constant, the pulse damper 17 is matched, the damage of a water hammer to the system is reduced, the speed fluctuation peak value is reduced, pipe fittings such as pipelines, elbows and joints are protected, and the normal output flow of theinjection pump 403 can be guaranteed.

Of course, in this embodiment, thewater injection flowmeter 9 and thewater outlet flowmeter 11 are both electromagnetic flowmeters, which do not cause pressure loss of the pipeline when measuring the flow, and the measured volume flow is practically not significantly affected by parameters such as density, temperature, pressure, and the like, and can be used for measuring the corrosive fluid flow.

Referring to fig. 1 and 2, the in-well aeration assembly 5 comprises anaeration pipe 501 communicated with the airsource distribution box 7, one end of theaeration pipe 501 close to the circulation well 1 extends into the circulation well 1, and one end of theaeration pipe 501 close to the circulation well 1 is provided with anaerator 502. The airsource distribution box 7 conveys high-pressure air to theaerator 502 through theaerator pipe 501 to realize aeration, so that the adjustment of the dissolved oxygen value of the underground water is realized. Of course, the type of theaerator 502 can be selected according to actual conditions to meet different working requirements.

Referring to fig. 1 and fig. 2, thedownhole aeration assembly 5 further includes a dissolvedoxygen meter 503, theaeration pipe 501 is provided with a secondelectromagnetic valve 18, the secondelectromagnetic valve 18 and the dissolvedoxygen meter 503 are both coupled to a controller, a dissolved oxygen preset value is provided in the controller, and when the dissolved oxygen value is higher than the dissolved oxygen preset value, the controller controls the opening of the secondelectromagnetic valve 18 to decrease; when the dissolved oxygen value is lower than the dissolved oxygen preset value, the controller controls the opening of the secondelectromagnetic valve 18 to be increased, otherwise, the opening of the secondelectromagnetic valve 18 is not changed. According to real-time detection data of the circulating dissolvedoxygen instrument 503, the opening degree of the secondelectromagnetic valve 18 is adjusted through an automatic control group, so that the dissolved oxygen value in the well is stable.

Referring to fig. 1 and 2, apressure gauge 19 is installed on theaeration pipe 501, thepressure gauge 19 is an oil-filledpressure gauge 19, the oil-filledpressure gauge 19 can avoid the vibration of the pointer or the violent shake caused by the impact-resistant action due to the vibration of the air pipeline, and the filling liquid can enable the measuring instrument to have the performances of buffering and shock resistance, reduce the loss of components and prevent the occurrence of condensation. Theaeration pipe 501 is also provided with anaeration flow meter 20, and apressure gauge 19 is positioned between theaeration flow meter 20 and the secondelectromagnetic valve 18. Theaeration flowmeter 20 is a vortex flowmeter which is mainly used for measuring the flow of industrial pipeline medium fluid, adopts a piezoelectric stress sensor, has high reliability, and can be matched with a PLC (programmable logic controller) for use.

Of course, each pipeline can be provided with a manual ball valve, and the manual ball valve can cut off, distribute and change the flow direction of the medicament in the pipeline; safety valves and pressure reducing valves may be installed on thechemical tank 401, thegas storage tank 202 and each pipeline to improve the safety of the whole device and system, and in this embodiment, no specific description is given.

Particularly, the control modes of the automatic control system component are designed into three modes, wherein the three modes are an in-situ manual mode, a remote single-machine mode and a remote online automatic mode from high to low in sequence. When the local manual mode is a manual mode selected on the field control box or the low-voltage control cabinet, the on/off operation of the equipment is realized through a button on the field control box or the low-voltage control cabinet; when the field control box or the low-voltage control cabinet selects an 'automatic' mode, an operator selects a 'manual' mode through a monitoring picture of an upper computer and performs start/stop, on/off operations on equipment; the remote online automatic mode is that an 'automatic' mode is selected on a field control box or a low-voltage control cabinet, and when a field control station is set to the 'automatic' mode, the system runs completely and automatically. Therefore, the system can realize the switching of various control modes, and has high automation level and strong practicability.

The implementation principle of the underground water in-situ circulating repair device provided by the embodiment of the application is as follows: when the air compressor is used, high-pressure air generated by the screw compressor 201 is firstly stored in the air storage tank 202 through the main air pipeline 203, and the air storage tank 202 is connected with the air source distribution box 7 and distributed to all components; the pneumatic diaphragm pump 301 injects high-pressure gas into the ground water, and the high-pressure gas is distributed to the pneumatic dewatering pump 302 through the gas source distribution box 7 to pump the ground water out; adding the selected medicament into a medicament tank 401 for dissolving and distributing, distributing part of gas to a pneumatic diaphragm pump 301 by using a gas storage tank 202, and conveying the dissolved and distributed medicament into a circulating well 1 by using the pneumatic diaphragm pump 301 to realize underground water decontamination treatment; after being distributed by the air source distribution box 7, high-pressure air is connected into the aeration pipe 501, and then aeration is carried out in the circulating well 1 to realize adjustment of the dissolved oxygen value of underground water, meanwhile, the system is provided with an automatic control assembly, the automatic control assembly constructs a programmable logic control system through software and hardware to realize local manual control, remote single-machine control and remote online control, so that a power system for underground water in-situ circulation is realized, a chemical oxidation-air disturbance-reinforced bioremediation technology is coupled, integrated, modularized, skid-mounted and automatic underground water in-situ circulation remediation integrated equipment is formed, and an underground water in-situ circulation remediation system is formed by combining the underground water circulating well 1 in parallel, so that the device and the system have multiple functions and strong practicability, and can solve the problems of various types of underground water.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides an underground water normal position circulation prosthetic devices which characterized in that: comprises a circulating well (1), a power component (2), a water pumping and injecting component (3), a medicament delivery and distribution component (4), an in-well aeration component (5) and an automatic control component;

the power assembly (2) is used for providing a power source, the power assembly (2) comprises an air storage tank (202) and a screw air compressor (201), and a main air pipeline (203) is communicated between the screw air compressor (201) and the air storage tank (202);

the gas storage tank (202) is communicated with a gas source distribution box (7) for distributing gas;

the water pumping and injecting assembly (3) comprises a pneumatic diaphragm pump (301) for water injection and a pneumatic water reducing pump (302) for water pumping, the pneumatic water reducing pump (302) and the pneumatic diaphragm pump (301) are both communicated with the air source distribution box (7), a water injection pipe (303) is communicated between the pneumatic diaphragm pump (301) and the circulating well (1), and the pneumatic water reducing pump (302) is positioned at the bottom of the circulating well (1);

the medicament delivery and dispensing assembly (4) comprises a medicament tank (401) for dissolving medicament, the medicament tank (401) being in communication with the air operated diaphragm pump (301), the air operated diaphragm pump (301) being capable of injecting medicament into the circulation well (1);

the inner well aeration assembly (5) is used for adjusting the dissolved oxygen value in the circulation well (1), the inner well aeration assembly (5) comprises an aeration pipe (501) communicated with the air source distribution box (7), one end of the aeration pipe (501) close to the circulation well (1) is provided with an aerator (502), and the aerator (502) is positioned in the circulation well (1);

the automatic control assembly is used for overall tuning.

2. A groundwater in-situ circulation remediation device as claimed in claim 1, wherein: the automatic control assembly comprises a controller, a control pipeline (8) is communicated between the air source distribution box (7) and the pneumatic diaphragm pump (301), a water injection flowmeter (9) used for detecting flow is arranged on the water injection pipe (303), a first electromagnetic valve (10) is arranged on the control pipeline (8), the water injection flowmeter (9) and the first electromagnetic valve (10) are both coupled with the controller, and when the flow in the water injection pipe (303) is lower than a set flow value, the controller controls the opening of the first electromagnetic valve (10) to be increased; when the flow rate in the water injection pipe (303) is higher than a set flow rate value, the controller controls the opening degree of the first electromagnetic valve (10) to be reduced.

3. A groundwater in-situ circulation remediation device as claimed in claim 2, wherein: the pneumatic water reducing pump (302) is communicated with a water outlet pipe (304), a water outlet flow meter (11) is arranged on the water outlet pipe (304), the pneumatic water reducing pump (302) is provided with a frequency converter, the water outlet flow meter (11) and the frequency converter are both coupled with the controller, and when the flow is higher than a set flow, the controller reduces the running frequency of the frequency converter; and when the flow is lower than the set flow value, the controller increases the running frequency of the frequency converter.

4. The groundwater in-situ circulation remediation device of claim 2, wherein: a liquid level meter (12) is arranged in the medicament tank (401), the medicament tank (401) is communicated with a medicament injection pump (403), the liquid level meter (12) and the medicament injection pump (403) are both coupled with the controller, and when the liquid level in the medicament tank (401) is at a low liquid level, the controller controls the medicament injection pump (403) to operate; when the liquid level in the medicament tank (401) is at a high liquid level, the controller controls the injection pump (403) to stop.

5. A groundwater in-situ circulation remediation device as claimed in claim 2, wherein: the aeration assembly (5) in the well further comprises an oxygen dissolving instrument (503), a second electromagnetic valve (18) is arranged on the aeration pipe (501), the second electromagnetic valve (18) and the oxygen dissolving instrument (503) are both coupled with the controller, and when the dissolved oxygen value is higher than the dissolved oxygen preset value, the controller controls the opening degree of the second electromagnetic valve (18) to be reduced; when the dissolved oxygen value is lower than the predetermined dissolved oxygen value, the controller controls the opening of the second electromagnetic valve (18) to be increased.

6. A groundwater in-situ circulation remediation device as claimed in claim 5, wherein: and a pressure gauge (19) is arranged on the aeration pipe (501), and the pressure gauge (19) is an oil-filled pressure gauge.

7. The groundwater in-situ circulation remediation device of claim 6, wherein: an aeration flow meter (20) used for metering aeration air flow is further arranged on the aeration pipe (501), and the pressure gauge (19) is located between the aeration flow meter (20) and the second electromagnetic valve (18).

8. The groundwater in-situ circulation remediation device of claim 2, wherein: and a return pipeline (14) is arranged on the water injection pipe (303).

9. An in-situ groundwater circulation remediation device as claimed in claim 8, wherein: be provided with back pressure valve (16) on water injection pipe (303), back pressure valve (16) cooperation has pulse damper (17), back pressure valve (16) are located return line (14) with between the flowmeter.

10. An in-situ groundwater circulation remediation device as claimed in claim 8, wherein: be provided with check valve (15) on water injection pipe (303), check valve (15) are located return line (14) with between pneumatic diaphragm pump (301).

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