CN115893552B - Groundwater normal position circulation prosthetic devices - Google Patents
Groundwater normal position circulation prosthetic devices Download PDFInfo
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- CN115893552B CN115893552B CN202310182056.2A CN202310182056A CN115893552B CN 115893552 B CN115893552 B CN 115893552B CN 202310182056 A CN202310182056 A CN 202310182056A CN 115893552 B CN115893552 B CN 115893552B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
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- Y02W10/10—Biological treatment of water, waste water, or sewage
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Abstract
The application relates to the technical field of in-situ restoration of groundwater pollution, in particular to an in-situ circulation restoration device of groundwater, 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 diaphragm pump, the pneumatic diaphragm 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 well aeration assembly 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 circulation repairing device has the advantages that integrated, modularized, skid-mounted and automatic underground water in-situ circulation repairing integrated equipment can be formed, and the integrated equipment is combined with an underground water circulation well to form an underground water in-situ circulation repairing device.
Description
Technical Field
The application relates to the technical field of in-situ restoration of groundwater pollution, in particular to an in-situ circulation restoration device for groundwater.
Background
Groundwater is a valuable fresh water resource for human beings, but with the continuous development of the social industrialization process, wastewater discharge, industrial waste residues, agricultural irrigation and the like are likely to cause groundwater pollution, so that the originally tense problem of water resource shortage is more serious, serious threat and challenge are formed in the aspects of human living health, food safety, drinking water safety and the like, and groundwater pollution remediation is an environmental problem which is currently attracting attention.
At present, the polluted groundwater repair technology is mainly divided into an ectopic repair technology and an in-situ repair technology. The ex-situ remediation technology is a technology in which contaminated groundwater is pumped to the surface and then treated. The technology has large treatment capacity and higher treatment efficiency in a short period, but the phenomena of tailing, rebounding and the like of pollutant concentration generally exist in long-term application, so that the treatment efficiency is finally reduced, and the treatment cost is increased. The in-situ repair technology is widely applied to the field of groundwater pollution repair at the brand-new corner by the advantages of thorough repair, various pollutant types, relatively short treatment time, relatively low cost and the like.
The in-situ remediation technology for the underground water circulating well is a multi-kind of remediation technology capable of coupling in-situ air disturbance, vapor extraction, biological remediation, chemical oxidation, electrochemical remediation and the like, and can simultaneously realize the in-situ remediation technology for removing volatile organic pollutants (VOCs), semi-volatile organic pollutants (SVOCs), non-aqueous liquid (NAPLs) and part of inorganic pollutants in an underground environment.
The underground water circulating well in-situ restoration technology recorded in the related technology is researched and started later in the technical field in China, and the good treatment effect of the technology is determined on the laboratory simulation research level, but the application restoration cases are fewer on the actual field engineering level, and the circulating well technology main body equipment is purchased abroad and lacks independent research and development circulating well integrated equipment.
Disclosure of Invention
In order to form integrated, modularized, skid-mounted and automatic underground water in-situ circulation repairing integrated equipment, and form an underground water in-situ circulation repairing device in combination with an underground water circulating well, the application provides an underground water in-situ circulation repairing device.
The application provides an groundwater normal position circulation prosthetic devices adopts following technical scheme:
an in-situ groundwater circulation repairing device comprises a circulation well, a power assembly, a water pumping and injecting assembly, a medicament conveying and distributing assembly, an in-well aeration assembly and an automatic control assembly; the power assembly is used for providing a power source and comprises an air storage tank and a screw air compressor, and a main air pipeline is communicated between the screw air compressor and the air 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-lowering pump for pumping water, the pneumatic water-lowering 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-lowering pump is positioned at the bottom of the circulating well; the medicament delivery assembly comprises a medicament tank for dissolving medicament, the medicament tank is communicated with the pneumatic diaphragm pump, and the pneumatic diaphragm pump can inject medicament into the circulating well; the in-well aeration assembly is used for adjusting the dissolved oxygen value in the circulating well and comprises an aeration pipe communicated with the air source distribution box, one end, close to the circulating well, of the aeration pipe 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 the air conditioner is used, high-pressure air generated by the screw air compressor is firstly stored into the air storage tank through the main air pipeline, and the air storage tank is connected with the air source distribution box and distributed to all components; the pumping and water injecting assembly can complete pumping and water injecting work, the chemical conveying and distributing assembly can convey the dissolved chemical into the injection well by the pneumatic diaphragm pump so as to realize groundwater decontamination treatment, the in-well aeration assembly can adjust the dissolved oxygen value of groundwater, each assembly can respectively complete required work according to work requirements, the automatic control assembly can tune the whole device and the system, thus, an in-situ circulating power system of the groundwater is realized, and the chemical oxidation-air disturbance-enhanced biological repair technology is coupled, integrated, modularized, skid-mounted and automatic in-situ circulating repair integrated equipment for the groundwater is formed, and the device and the system are multifunctional and high in practicability.
Optionally, the automatic control component includes a controller, a water injection flowmeter and a first electromagnetic valve for detecting flow are arranged on the water injection pipe, the water injection flowmeter and the first electromagnetic valve are both coupled with 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 be increased; when the flow rate in the water injection pipe is higher than the set flow rate value, the controller controls the opening of the first electromagnetic valve to be smaller.
By adopting the technical scheme, the specific running time and the flow are controlled in a time sequence mode by external setting or parameter presetting, and the opening of the electromagnetic valve can be adjusted by the controller to realize constant flow running if the water injection flow of the system is required to be adjusted in different time periods.
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 the set flow rate, the controller regulates down the running frequency of the frequency converter; when the flow is lower than the set flow value, the controller adjusts the running frequency of the frequency converter.
By adopting the technical scheme, the specific running time and flow are controlled in time sequence by external setting or parameter presetting, and the system pumping flow in different time periods can be adjusted by the controller to realize corresponding parameter change if needed.
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 with 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.
Through adopting above-mentioned technical scheme, set up the magnetism in the medicament jar and turn over the board level gauge, can show the in-tank liquid level height directly perceivedly accurately, through the teletransmission signal, automatic pump stopping when the in-tank medicament is in predetermineeing low liquid level realizes low liquid level protect function.
Optionally, the well aeration assembly further comprises an oxygen dissolving instrument, a second electromagnetic valve is arranged on the aeration pipe, the second electromagnetic valve and the oxygen dissolving instrument are both coupled with the controller, and when the oxygen dissolving value is higher than a predetermined oxygen dissolving 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 degree of the second electromagnetic valve to be increased.
By adopting the technical scheme, the opening of the air inlet second electromagnetic valve of the aeration system is adjusted according to the change of the dissolved oxygen value in the well when the system operates 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 the intense shaking caused by pointer vibration or impact-resistant action due to air pipeline vibration, the filling liquid can enable the measuring instrument to have buffering and anti-vibration performances, the loss of parts is reduced, and condensation can be prevented.
Optionally, an aeration flowmeter for metering aeration air flow is further arranged on the aeration pipe, and the pressure gauge is located between the aeration flowmeter and the second electromagnetic valve.
By adopting the technical scheme, the vortex shedding flowmeter is mainly used for measuring the flow of medium fluid in an industrial pipeline, and the piezoelectric stress sensor is adopted, so that the reliability is high.
Optionally, a return pipeline is arranged on the water injection pipe.
Through adopting above-mentioned technical scheme, the return line sets up on the water injection pipe and is located behind the pneumatic diaphragm pump, and the return line can be convenient for adjust medicament flow and reinforce 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 positioned between the return pipeline and the flowmeter.
By adopting the technical scheme, the back pressure valve is used for keeping the pressure of the pump outlet constant, and the back pressure valve is matched with the pulse damper, so that the damage of a water hammer to a system is reduced, the peak value of speed fluctuation is reduced, and the pipe fittings such as a pipeline, an elbow and a joint are protected, so that the drug injection pump can normally output flow.
Optionally, a check valve is disposed on the water injection pipe, and the check valve is located between the return line and the pneumatic diaphragm pump.
By adopting the technical scheme, the check valve is used for preventing liquid from flowing back so as to play a role in protection.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the application provides an integrated device comprising groundwater in-situ circulation power and coupling chemical-air disturbance-enhanced biological repair technology, which mainly comprises a power module, a water pumping and injecting module, a medicament delivery and distribution module and an in-well aeration module, and the integrated device is combined with a groundwater circulation well to form the groundwater in-situ circulation repair device, so that the groundwater pollution problem of various conditions can be solved, and the integrated device has the advantages of small environmental disturbance, high treatment efficiency, low repair cost and the like;
2. the automatic control module is arranged in the application, the programmable logic control device and the system are built through software and hardware, the on-site manual control, the remote single machine control and the remote on-line control are realized, the automatic control module can be used in cooperation with a pressure gauge, a liquid level meter, an electromagnetic flowmeter, an electromagnetic valve and the like along with the operation of equipment, the pumping device and the system can be operated simultaneously with the water injection device and the system, the operation time and the flow are required to be set externally or the parameter is required to be preset for time sequence control, the pumping and the water injection flow of the device and the system in different time periods are required to be changed, and the operation parameters of the automatic control module can be adjusted to realize automatic operation and improve the convenience.
Drawings
FIG. 1 is a schematic structural view of an in-situ groundwater circulation remediation device of the present application;
FIG. 2 is a top view of an in situ groundwater circulation remediation device of the present application;
fig. 3 is a schematic structural view of a stirring assembly of the groundwater in-situ circulation repair device in the present application.
Reference numerals illustrate: 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 assembly; 301. a pneumatic diaphragm pump; 302. pneumatic water dropping 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 in-well aeration assembly; 501. an aeration pipe; 502. an aerator; 503. an oxygen dissolving instrument; 7. an air source distribution box; 8. a control pipeline; 9. a water injection flowmeter; 10. a first electromagnetic valve; 11. a water outlet flowmeter; 12. a liquid level gauge; 13. a stirring assembly; 1301. a driving 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 electromagnetic valve; 19. a pressure gauge; 20. an aeration flowmeter.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-3.
The embodiment of the application discloses groundwater normal position circulation prosthetic devices, refer to fig. 1 and 2, groundwater normal position circulation prosthetic devices includes circulation well 1, be used for providing power supply's power component 2, be used for the water injection and draw water injection subassembly 3, be used for groundwater decontaminating medicament delivery and distribution subassembly 4, be used for adjusting groundwater dissolved oxygen value's well aeration component 5 and automatic control subassembly (not shown in the figure), automatic control subassembly can be tuned, control each subassembly.
The power assembly 2 can generate high-pressure gas for each assembly to use, the pumping and water injecting assembly 3 can complete the pumping and water injecting operation in the circulating well 1, the medicament delivery and distribution assembly 4 can realize the groundwater decontamination treatment, the in-well aeration assembly 5 can adjust the groundwater dissolved oxygen value, each assembly can respectively complete the required work according to the working requirement, the automatic control assembly constructs a programmable logic control system through software and hardware, thus, the power system of the in-situ circulation of the groundwater is realized, the chemical oxidation-air disturbance-enhanced biological repair technology is coupled, the integrated equipment of integration, modularization, skid-mounted and automatic in-situ circulation repair of the groundwater is formed, and the in-situ circulation repair system of the groundwater is formed by combining the underground water circulating well 1, so that the device and the system have multiple functions and strong practicability, and can solve various groundwater problems.
Specifically, referring to fig. 1 and 2, the power assembly 2 includes a screw air compressor 201 and an air storage tank 202 that generate high-pressure air, and a main air pipeline 203 is communicated between the screw air compressor 201 and the air storage tank 202, so that the high-pressure air generated by the screw air compressor 201 is stored in the air storage tank 202 through the main air pipeline 203, so as to be used by the water pumping and injecting assembly 3, the medicament delivery and distribution assembly 4 and the in-well aeration assembly 5 at any time. In order to facilitate the distribution of high-pressure gas to each component, the gas storage tank 202 is communicated with the gas source distribution box 7, and the gas source distribution box 7 can supply gas to the water pumping and injecting component 3, the medicament delivery and distribution component 4 and the in-well aeration component 5 respectively according to working requirements.
It can be appreciated that in this embodiment, high-pressure gas is used as a power source, so that on one hand, air is convenient to obtain and pollution-free, and the gas is used as the power source to operate quickly, and on the other hand, by combining the working characteristics of each component, the gas can be used as the power source with higher convenience.
Referring to fig. 1 and 2, the water pumping and injecting assembly 3 comprises a pneumatic diaphragm pump 301 for injecting water into the circulation well 1 and a pneumatic water-dropping pump 302 for pumping water out of the circulation well 1, wherein the pneumatic water-dropping pump 302 and the pneumatic diaphragm pump 301 are both communicated with the air source distribution box 7, a control pipeline 8 is communicated between the pneumatic diaphragm pump 301 and the air source distribution box 7, a water injection pipe 303 is communicated between the pneumatic diaphragm pump 301 and the circulation well 1, the pneumatic water-dropping pump 302 is positioned at the bottom of the circulation well 1, and the pneumatic water-dropping pump 302 is connected with a water outlet pipe 304. The pneumatic diaphragm pump 301 is filled with high-pressure gas to inject groundwater, the pneumatic water-dropping pump 302 is arranged at the bottom of the well, and the high-pressure gas is distributed to the pneumatic water-dropping pump 302 through the gas source distribution box 7 to pump out groundwater.
Of course, the circulating well 1 and the pneumatic water-lowering pump 302 can be provided in plurality, and the circulating well 1 and the pneumatic water-lowering pump 302 can be adjusted according to working requirements to meet the working requirements, and meanwhile, the in-situ circulating repair effect of the underground water is optimal.
Referring to fig. 1 and 2, the automatic control assembly mainly includes a controller (not shown in the drawings), in this embodiment, the controller may adopt a PLC controller, a water injection flowmeter 9 for detecting flow is disposed on a water injection pipe 303, a first electromagnetic valve 10 is disposed on a control pipeline 8, both the water injection flowmeter 9 and the first electromagnetic valve 10 are coupled with the controller, a water injection flow value is preset in the controller, and when the flow in the water injection pipe 303 is lower than the set water injection flow value, the opening of the first electromagnetic valve 10 is controlled to be larger by the controller; when the flow rate in the water injection pipe 303 is higher than the set water injection flow rate value, the controller controls the opening of the first electromagnetic valve 10 to become smaller, otherwise, the opening of the first electromagnetic valve 10 is unchanged. According to the different working time, the water injection flow in different time periods may need to be adjusted, and the water injection flow can be automatically adjusted by adjusting the water injection flow value in the controller and matching the water injection flow meter 9 with the first electromagnetic valve 10.
Referring to fig. 1 and 2, a water outlet flow meter 11 is arranged on a water outlet pipe 304, a frequency converter (not shown in the figure) is arranged in a pneumatic water dropping pump 302, the water outlet 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 the set water outlet flow, the controller regulates down the running frequency of the frequency converter; when the flow is lower than the set outlet flow value, the controller increases the operating frequency of the frequency converter. According to the difference of operating time, the pumping flow in different time periods may need to be adjusted, through adjusting the pumping flow value in the controller, the frequency converter can change the pumping flow of the pneumatic water pump 302 simultaneously, and through the cooperation of the pumping flowmeter and the frequency converter, the adjustment of the pumping amount can be automatically realized.
Referring to fig. 1 and 2, the medicament delivery and distribution assembly 4 comprises a medicament tank 401 for dissolving and distributing medicament, the medicament tank 401 is communicated with a pneumatic diaphragm pump 301, the pneumatic diaphragm pump 301 can inject medicament into the circulating well 1, the selected medicament is added into the medicament tank 401 for dissolving and distributing, the gas source distribution box 7 distributes part of gas to the pneumatic diaphragm pump 301, and the dissolved medicament is conveyed into the circulating well 1 by the pneumatic diaphragm pump 301 to realize groundwater decontamination treatment.
Referring to fig. 1 and 2, the liquid level gauge 12 is installed on the medicine tank 401, the medicine tank 401 is connected with the liquid inlet pipe 402, the liquid inlet pipe 402 is provided with two, is used for connecting clear water and medicine respectively, is provided with the medicine injection pump 403 on each liquid inlet pipe 402, and two medicine injection pumps 403 and the liquid level gauge 12 are all coupled with the controller, are provided with low liquid level value and high liquid level value in the controller, and when the liquid level in the medicine tank 401 is in low liquid level, the controller controls medicine injection pump 403 to operate, and when the liquid level in the medicine tank 401 is in high liquid level, the controller controls medicine injection pump 403 to stop. The liquid level gauge 12 can intuitively and accurately display the liquid level in the tank, and can control the liquid level in the medicament 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 injection of clean water and chemicals into the circulation well 1 through the air-operated diaphragm pump 301, respectively, in the present embodiment, two chemical tanks 401 are provided. Each medicine tank 401 is provided with a stirring assembly 13, each stirring assembly 13 comprises a driving motor 1301 fixed on the medicine tank 401, a rotating shaft 1302 is fixedly connected to an output shaft of the driving motor 1301, and a stirring wheel 1303 is fixedly connected to one end, away from the driving motor 1301, of the rotating shaft 1302. The driving motor 1301 drives the stirring wheel 1303 to rotate so as to achieve sufficient mixing of the medicines in the medicine tank 401.
Referring to fig. 1 and 2, a water injection pipe 303 is provided with a return line 14, and the return line 14 is located behind the air-operated diaphragm pump 301, and the return management facilitates adjusting the flow rate of the medicine and enhancing the stirring of the medicine. The water injection pipe 303 is provided with a check valve 15, the check valve 15 being located between the return line 14 and the pneumatic diaphragm pump 301, the check valve 15 being used to prevent liquid from flowing back. The water injection pipe 303 is further provided with a back pressure valve 16, the back pressure valve 16 is located between the return pipeline 14 and the water injection flowmeter 9, the back pressure valve 16 is matched with a pulse damper 17, the back pressure valve 16 is used for keeping the pressure of a pump outlet constant, the pulse damper 17 is matched, damage of a water hammer to a system is reduced, the peak value of speed fluctuation is reduced, and pipe fittings such as a pipeline, an elbow and a joint are protected, so that the normal output flow of the medicine injection pump 403 can be ensured.
Of course, in this embodiment, the water injection flowmeter 9 and the water outlet flowmeter 11 are both electromagnetic flowmeters, which will not cause pressure loss of the pipeline when measuring flow, the measured volume flow is not substantially affected by parameters such as density, temperature, pressure, etc., and can be used for corrosive fluid flow measurement.
Referring to fig. 1 and 2, the in-well aeration assembly 5 includes an aeration pipe 501 in communication with the gas source distribution box 7, one end of the aeration pipe 501 near the circulation well 1 extends into the circulation well 1, and one end of the aeration pipe 501 near the circulation well 1 is provided with an aerator 502. The air source distribution box 7 conveys high-pressure air to the aerator 502 through the aerator pipe 501 to realize aeration, so that the adjustment of the dissolved oxygen value of the underground water is realized. Of course, the aerator 502 can be selected according to actual conditions so as to meet different working requirements.
Referring to fig. 1 and 2, the in-well aeration assembly 5 further includes an oxygen dissolving device 503, the aeration pipe 501 is provided with a second electromagnetic valve 18, the second electromagnetic valve 18 and the oxygen dissolving device 503 are both coupled with a controller, a predetermined value of dissolved oxygen is provided in the controller, and when the dissolved oxygen value is higher than the predetermined value of dissolved oxygen, the controller controls the opening of the second electromagnetic valve 18 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 18 to be increased, otherwise, the opening of the second electromagnetic valve 18 is unchanged. According to real-time detection data of the oxygen dissolving instrument 503 in the circulation, the opening degree of the second electromagnetic valve 18 is adjusted by the automatic control group to realize the stability of the oxygen dissolving value in the well.
Referring to fig. 1 and 2, the pressure gauge 19 is installed on the aerator pipe 501, the pressure gauge 19 is an oil-filled pressure gauge 19, the oil-filled pressure gauge 19 can avoid intense shaking caused by pointer vibration or impact resistance action due to air pipeline vibration, and the filling liquid can enable the measuring instrument to have buffering and anti-vibration performances, reduce the loss of components and prevent condensation. An aeration flowmeter 20 is also mounted on the aeration pipe 501, and a pressure gauge 19 is positioned between the aeration flowmeter 20 and the second electromagnetic valve 18. The aeration flowmeter 20 is a vortex shedding flowmeter, which is mainly used for measuring the flow of industrial pipeline medium fluid, and adopts a piezoelectric stress sensor, so that the reliability is high, and the vortex shedding flowmeter can be matched with a PLC 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; the safety valve and the pressure reducing valve can be installed on the medicament tank 401, the air storage tank 202 and each pipeline to improve the safety of the whole device and the system, and in this embodiment, no specific description will be made.
In particular, the control modes of the automatic control system component are three, and the three modes are in an in-situ manual mode, a remote single machine mode and a remote online automatic mode from high to low. The on-site manual mode is to realize the on/off operation of equipment through a button on the on-site control box or the low-voltage control cabinet when the manual mode is selected on the on-site control box or the low-voltage control cabinet; when the automatic mode is selected on the site control box or the low-voltage control cabinet, an operator selects the manual mode through a monitoring picture of the upper computer and performs on/off operation on the equipment; the remote on-line automatic mode is that the on-site control box or the low-voltage control cabinet selects an automatic mode, and when the on-site control station is set to the automatic mode, the system runs completely 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 groundwater in-situ circulation repairing device provided by the embodiment of the application is as follows: when in use, high-pressure gas generated by the screw air compressor 201 is firstly stored into the gas storage tank 202 through the main gas pipeline 203, and the gas storage tank 202 is connected with the gas source distribution box 7 to be distributed to each component; the pneumatic diaphragm pump 301 is filled with high-pressure gas for groundwater injection, and the high-pressure gas is distributed to the pneumatic water-lowering pump 302 through the gas source distribution box 7 for groundwater extraction; the selected medicament is added into a medicament tank 401 for dissolution, the gas storage tank 202 distributes part of gas to the pneumatic diaphragm pump 301, and the pneumatic diaphragm pump 301 conveys the dissolved medicament into the circulating well 1 to realize groundwater decontamination treatment; after being distributed by the air source distribution box 7, the high-pressure air is connected into the aeration pipe 501, and then the aeration is carried out in the circulating well 1 to realize the adjustment of the dissolved oxygen value of the groundwater, meanwhile, the system is provided with an automatic control component, and an automatic control module builds a programmable logic control system through software and hardware to realize on-site manual control, remote single machine control and remote on-line control, so that a power system of the in-situ circulation of the groundwater is realized, a chemical oxidation-air disturbance-enhanced biological repair technology is coupled, integrated equipment for integrating, modularization, skid-mounted and automatic in-situ circulation repair of the groundwater is formed, and an in-situ circulation repair system of the groundwater is formed by combining the underground water circulating well 1, so that the device and the system have multiple functions and strong practicability, and can solve various problems of the groundwater.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (8)
1. An underground water normal position circulation prosthetic devices, its characterized in that: comprises a circulating well (1), a power assembly (2), a water pumping and injecting assembly (3), a medicament conveying and distributing assembly (4), an in-well aeration assembly (5) and an automatic control assembly;
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 injecting water and a pneumatic water dropping pump (302) for pumping water, the pneumatic water dropping 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 dropping pump (302) is positioned at the bottom of the circulating well (1);
the medicament delivery assembly (4) comprises a medicament tank (401) for dispensing medicament, the medicament tank (401) being in communication with the pneumatic diaphragm pump (301), the pneumatic diaphragm pump (301) being capable of injecting medicament into the circulation well (1);
the in-well aeration assembly (5) is used for adjusting the dissolved oxygen value in the circulating well (1), the in-well aeration assembly (5) comprises an aeration pipe (501) communicated with the air source distribution box (7), an aerator (502) is arranged at one end, close to the circulating well (1), of the aeration pipe (501), and the aerator (502) is positioned in the circulating well (1);
the automatic control assembly is used for overall tuning; the control modes of the automatic control assembly are three, and the levels of the three modes are in-situ manual mode, remote single-machine mode and remote on-line automatic mode from high to low in sequence;
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) 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 larger; when the flow rate in the water injection pipe (303) is higher than a set flow rate value, the controller controls the opening of the first electromagnetic valve (10) to be smaller;
the well aeration assembly (5) 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 oxygen dissolving value is higher than a predetermined oxygen dissolving value, the controller controls the opening of the second electromagnetic valve (18) to be smaller; when the dissolved oxygen value is lower than the dissolved oxygen preset value, the controller controls the opening degree of the second electromagnetic valve (18) to be increased.
2. The groundwater in situ circulation remediation device of claim 1, wherein: the pneumatic water dropping pump (302) is communicated with a water outlet pipe (304), a water outlet flowmeter (11) is arranged on the water outlet pipe (304), the pneumatic water dropping pump (302) is provided with a frequency converter, the water outlet flowmeter (11) and the frequency converter are both coupled with the controller, and when the flow rate is higher than the set flow rate, the controller regulates down the running frequency of the frequency converter; when the flow is lower than the set flow value, the controller adjusts the running frequency of the frequency converter.
3. The groundwater in situ circulation remediation device of claim 1, 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; the controller controls the drug infusion pump (403) to stop when the liquid level in the drug canister (401) is at a high liquid level.
4. The groundwater in situ circulation remediation device of claim 1, wherein: the aeration pipe (501) is provided with a pressure gauge (19), and the pressure gauge (19) is an oil-filled pressure gauge.
5. The groundwater in situ circulation remediation device of claim 4, wherein: an aeration flowmeter (20) for metering aeration air flow is further arranged on the aeration pipe (501), and the pressure gauge (19) is located between the aeration flowmeter (20) and the second electromagnetic valve (18).
6. The groundwater in situ circulation remediation device of claim 1, wherein: and a return pipeline (14) is arranged on the water injection pipe (303).
7. The groundwater in situ circulation remediation device of claim 6, wherein: the water injection pipe (303) is provided with a back pressure valve (16), the back pressure valve (16) is matched with a pulse damper (17), and the back pressure valve (16) is positioned between the return pipeline (14) and the flowmeter.
8. The groundwater in situ circulation remediation device of claim 6, wherein: the water injection pipe (303) is provided with a check valve (15), and the check valve (15) is positioned between the return pipeline (14) and the pneumatic diaphragm pump (301).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310182056.2A CN115893552B (en) | 2023-03-01 | 2023-03-01 | Groundwater normal position circulation prosthetic devices |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310182056.2A CN115893552B (en) | 2023-03-01 | 2023-03-01 | Groundwater normal position circulation prosthetic devices |
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| CN115893552B true CN115893552B (en) | 2023-05-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US5690173A (en) * | 1995-10-13 | 1997-11-25 | General Motors Corporation | Apparatus for enhanced bioremediation of underground contaminants |
| JP2006346567A (en) * | 2005-06-15 | 2006-12-28 | Kubota Corp | In-situ purification method of contaminated soil |
| CN108435765B (en) * | 2018-02-12 | 2024-05-28 | 内蒙古睿达鑫科技有限责任公司 | In-situ soil and groundwater integrated restoration system and restoration method |
| CN108773893A (en) * | 2018-04-09 | 2018-11-09 | 北京建工环境工程咨询有限责任公司 | A kind of underground water pollution in situ chemical oxidation processing method and system based on zonal control |
| CN111266396B (en) * | 2020-03-16 | 2021-05-04 | 湖南恒凯环保科技投资有限公司 | Continuous preparation and injection integrated equipment for in-situ remediation chemical agent |
| CN111420976A (en) * | 2020-04-21 | 2020-07-17 | 华南理工大学 | Underground water in-situ chemical remediation medicament optimized injection system |
| CN112645542A (en) * | 2020-12-29 | 2021-04-13 | 苏州精英环保有限公司 | Circulating well system for in-situ remediation of organic polluted underground water |
| CN115710039B (en) * | 2022-11-25 | 2024-03-19 | 吉林大学 | Circulating well repairing system and method |
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