CN212843828U - Monitoring and extracting equipment for repairing non-aqueous phase liquid polluted underground water - Google Patents
Monitoring and extracting equipment for repairing non-aqueous phase liquid polluted underground water Download PDFInfo
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- CN212843828U CN212843828U CN202021396880.6U CN202021396880U CN212843828U CN 212843828 U CN212843828 U CN 212843828U CN 202021396880 U CN202021396880 U CN 202021396880U CN 212843828 U CN212843828 U CN 212843828U
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Abstract
The utility model provides a monitoring extraction device for repairing non-aqueous phase liquid polluted groundwater, which comprises a pipe well, wherein extraction pipes inserted into different pollution layers are arranged in the pipe well, and a packer is arranged on the outer wall of each extraction pipe; the pipe well is provided with water-oil interface monitoring probes at the highest positions of different pollution layers; the air compressor is connected with all the packers through air pipes, and the water pump is connected with the extraction pipe. The utility model discloses a beneficial effect is: the system has the functions of monitoring the water level, monitoring the positions of different pollution layers in the non-aqueous phase liquid polluted underground water and recording data, and facilitates a site responsibility unit to know the underground water condition in the site in time; by setting the water-oil interface monitoring probe, extraction is realized after the water-oil interface monitoring probe is positioned.
Description
Technical Field
The utility model relates to a pollute groundwater restoration and management and control technical field, especially relate to a monitoring extraction equipment for repairing non-aqueous phase liquid pollutes groundwater.
Background
Along with the updating and releasing of the national environmental protection regulations, the treatment mode of the polluted land is changed, and the treatment of the polluted land can be divided into two modes of repair and risk management and control according to the land requirement and the pollution degree; in projects related to groundwater remediation and risk control, the judgment on pollution in an extraction well is very critical when the water level of groundwater changes and the concentration of pollutants in water changes, particularly under the conditions of LNAPL and DNAPL, and how to record the pollution condition with nonlinear change trend and timely discover abnormal conditions and take countermeasures in the project implementation process is a great test for constructors.
For projects of pollution underground water risk management and control, not too many technicians observe underground water pollution changes on site during management and control, but the changes of the polluted underground water need to be accurately recorded; how to accurately know the changes of the LNAPL and the DNAPL in the pipe well and respectively pump out the polluted underground water, the LNAPL and the DNAPL is a difficult problem in the treatment process of the polluted underground water.
SUMMERY OF THE UTILITY MODEL
In the light of the above-mentioned problem, the utility model provides a monitoring extraction equipment for restoreing non-aqueous phase liquid pollution groundwater has saved manpower resources and cost under the corresponding condition of accurate data and quick action of acquisition, facilitates for the implementation of secret sewage management and control project.
In order to achieve the above object, the technical solution of the present invention is that:
a monitoring extraction equipment for repairing groundwater polluted by non-aqueous phase liquid comprises:
the pipe well is internally provided with extraction pipes inserted into different pollution layers, and the outer wall of each extraction pipe is provided with a packer; the pipe well is provided with water-oil interface monitoring probes at the highest positions of different pollution layers;
the air compressor is connected with all the packers through air pipes, and the water pump is connected with the extraction pipe.
In the above technical scheme, preferably, the contaminated layer in the pipe well includes an LNAPL layer, a contaminated groundwater layer, and a DNAPL layer from top to bottom, the extraction pipes are a first extraction pipe, a second extraction pipe, and a third extraction pipe, respectively, and the first extraction pipe, the second extraction pipe, and the third extraction pipe are all connected to the water pumping port of the water pump through a four-way pipe joint.
In the above technical solution, preferably, the water-oil interface monitoring probe includes a first water-oil interface monitoring probe, a second water-oil interface monitoring probe, and a third water-oil interface monitoring probe, which are disposed at the highest positions of the LNAPL layer, the polluted groundwater layer, and the DNAPL layer.
In the above technical solution, preferably, a first packer, a second packer, and a third packer are respectively installed outside the first extraction pipe, the second extraction pipe, and the third extraction pipe.
In the above technical solution, preferably, a valve assembly for controlling the opening and closing of one or more packers is arranged on an air pipe of the air compressor.
In the above technical solution, preferably, the valve assembly includes a first electromagnetic valve, a second electromagnetic valve, and a third electromagnetic valve installed on an air pipe through which the air compressor communicates with the first packer, the second packer, and the third packer.
In the above technical solution, preferably, the system further comprises a control system and a controller;
the input end of the control system is connected with all the water-oil interface monitoring probes;
the output end of the control system is connected with the input end of the controller;
the output end of the controller is connected with the air compressor, the water pump, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve.
In the above technical solution, preferably, a container is disposed at a water outlet end of the water pump.
In the above technical solution, preferably, the packer is an annular air bag structure with an inflation port, and the air compressor is connected with the inflation port of the packer through an air pipe; the annular air bag seals the extraction pipe after being inflated.
In the above technical solution, preferably, the extraction tube is a hose made of silica gel.
Compared with the prior art, the beneficial effects of the utility model are that: the system has the functions of monitoring the water level, monitoring the positions of different pollution layers in the non-aqueous phase liquid polluted underground water and recording data, and facilitates a site responsibility unit to know the underground water condition in the site in time; by setting the water-oil interface monitoring probe, extraction is realized after the water-oil interface monitoring probe is positioned.
Drawings
FIG. 1 is a schematic view of the embodiment of the present invention showing the structure of the pipe diameter and the steel cable;
FIG. 2 is a schematic view of the structure of the pipe diameter, the extraction pipe and the packer in the embodiment of the present invention;
fig. 3 is a schematic diagram of the connection of the whole device in the embodiment of the present invention;
fig. 4 is the embodiment of the present invention, wherein the extraction pipe is connected to the packer and the effect is schematically shown.
Description of reference numerals:
1-a steel cord; 2-a first water-oil interface monitoring probe; 3-a second water-oil interface monitoring probe; 4-a third water-oil interface monitoring probe; 5-a pipe well; 6-a first extraction tube; 7-a first packer; 8-a second extraction tube; 9-a second packer; 10-a third extraction tube; 11-a third packer; 12-a water pump; 13-a container; 14-a controller; 15-an air compressor; 16-control system.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1 to 4, the utility model provides a monitoring extraction equipment for repairing non-aqueous phase liquid polluted groundwater, which comprises:
the pipe well 5 is a cement pipe or a PE corrugated pipe, the side wall of the pipe well 5 is wrapped by a nylon net, the side wall is uniformly screened, and a flat-head plug or a conical plug is arranged at the bottom of the pipe well, so that polluted underground water permeates into the pipe well 5 from the side wall; a first extraction pipe 6, a second extraction pipe 8 and a third extraction pipe 10 are arranged in the pipe well 5, and the lower ends of the first extraction pipe, the second extraction pipe and the third extraction pipe are respectively inserted into an LNAPL layer, a polluted underground water layer and a DNAPL layer;
the first extraction pipe 6, the second extraction pipe 8 and the third extraction pipe 10 are all made of silica gel hoses, and the outer walls of the first extraction pipe, the second extraction pipe and the third extraction pipe are respectively provided with a first packer 7, a second packer 9 and a third packer 11;
the pipe well 5 is provided with a first water-oil interface monitoring probe 2, a second water-oil interface monitoring probe 3 and a third water-oil interface monitoring probe 4 in series through a steel cable 1 at the highest positions of an LNAPL layer, a polluted underground water layer and a DNAPL layer respectively.
The air compressor 15 is connected with the first packer 7, the second packer 9 and the third packer 11 through air pipes, and a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve for controlling the opening and closing of the first packer 7, the second packer 9 and the third packer 11 are respectively arranged on the air pipes communicated with the first packer 7, the second packer 9 and the third packer 11 of the air compressor 15;
the first packer 7, the second packer 9 and the third packer 11 are all annular air bag structures with inflation ports, and the air compressor 15 is connected with the inflation ports of the packers through air pipes; the first extraction pipe 6, the second extraction pipe 8 and the third extraction pipe 10 are completely sealed in the inflated state of the first packer 7, the second packer 9 and the third packer 11.
The water pump 12, the first extraction pipe 6, the second extraction pipe 8 and the third extraction pipe 10 are all connected with a water pumping port of the water pump 12 through four-way pipe joints, and a container 13 is arranged at a water outlet of the water pump 12 and can adopt a ton barrel; the water pump 12 is a self-priming pump or a slow speed pump.
The input end of the controller 14 is connected with the first water-oil interface monitoring probe 2, the second water-oil interface monitoring probe 3 and the third water-oil interface monitoring probe 4; the output end of the controller 14 is connected with the air compressor 15, the water pump 12, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve.
The control system 16 is connected with the first water-oil interface monitoring probe 2, the second water-oil interface monitoring probe 3 and the third water-oil interface monitoring probe 4 through signal lines, and transmits monitoring data of the LNAPL layer, the polluted underground water layer and the DNAPL layer to the control system 16; the control system 16 records the monitoring data transmitted by the water-oil interface monitoring probe and issues an extraction command; the controller 14 is connected to the control system 16 through a signal line and receives the extraction command sent by the control system 16.
The three water-oil interface monitoring probes used in the embodiment can be MOSYE oil-water interface analyzer, JDR oil-water interface analyzer or Solinst122 oil-water interface analyzer; the air compressor 15 is a movable small air compressor, the capacity of an air cylinder is more than 20L, and the power is 300W or more; the slow pump is a peristaltic pump with 2-3 channels, and the flow is required to be adjustable at 0.009-120 mL/min; the self-priming pump is a small-sized electric self-priming pump, the suction stroke is 5-10m, the flow is 8-15L/min and is adjustable, and the use process is as follows:
when the device is used for automatic detection, recording and extraction of a management and control mode and an extraction and restoration method of non-aqueous phase liquid polluted groundwater, firstly, a hole is spirally drilled downwards in a to-be-detected ground, a sieve is opened on the side wall of a tube well 5, a flat-head plug is installed at the bottom of the tube well 5, the tube well 5 is vertically placed into a spiral hole after two layers of 80-mesh nylon nets are wrapped outside the outer wall of the tube well 5, groundwater is filtered by the nylon nets, and then enters the tube well 5 through sieve holes opened on the side wall;
a steel cable 1 extends downwards into a pipe well 5, the upper end of the steel cable 1 is fixed on the ground, three first water-oil interface monitoring probes 2, second water-oil interface monitoring probes 3 and third water-oil interface monitoring probes 4 which are positioned at different heights are connected in series on the steel cable 1 according to the water level requirements of the monitoring place on an LNAPL layer, an underground polluted water layer and a DNAPL layer, the heights of the first water-oil interface monitoring probes 2, the second water-oil interface monitoring probes 3 and the third water-oil interface monitoring probes 4 are respectively the highest position of the LNAPL layer, the highest position of the polluted underground water layer and the highest position of the DNAPL layer, which are required by the monitoring place, the first water-oil interface monitoring probes 2, the second water-oil interface monitoring probes 3 and the third water-oil interface monitoring probes 4 are connected with a control system 16 through signal lines, and the positions of the.
When the second water-oil interface monitoring probe 3 and the third water-oil interface monitoring probe 4 work normally and the LNAPL layer is slowly increased by a small amount, so that the first water-oil interface monitoring probe 2 contacts the LNAPL layer, indicating that the water levels of the polluted underground water layer and the DNAPL layer are normal, the height of the LNAPL layer exceeds the standard, the first water-oil interface monitoring probe 2 gives out an alarm sound, and sends the monitored information to the control system 16, the control system 16 records the information, and sends a command for extracting the LNAPL layer to the controller 14, the controller 14 controls the first electromagnetic valve between the air compressor 15 and the first packer 7 to be closed, the second electromagnetic valve and the third electromagnetic valve between the air compressor 15 and the second packer 9 and the third packer 11 to be opened, further controlling the air compressor 15 to inflate the second packer 9 and the third packer 11, so that the second packer 9 and the third packer 11 are inflated, and the second extraction pipe 8 and the third extraction pipe 10 are tightly pressed to achieve sealing; and the controller 14 controls the water pump 12 to work again, the excessive liquid in the LNAPL layer corresponding to the first extraction pipe 6 is extracted into the ton barrel until the first water-oil interface monitoring probe 2 does not contact the LNAPL, the control system 16 issues an extraction stopping command to the controller 14, and the sewage monitoring, recording, extraction and repair processing is completed this time.
When the first water-oil interface monitoring probe 2 and the third water-oil interface monitoring probe 4 work normally and the liquid of the polluted underground water layer slowly increases a little, so that the second water-oil interface monitoring probe 3 contacts with the LNAPL layer and the polluted underground water layer, the second water-oil interface monitoring probe 3 sends out an alarm sound, the control system 16 issues an extraction command, the controller 14 controls the air compressor 15 and the water pump 12 to extract the polluted underground water layer until the second water-oil interface monitoring probe 3 does not contact with the polluted underground water layer, and the sewage monitoring, recording, extraction and restoration processing is finished;
when the first water-oil interface monitoring probe 2 and the second water-oil interface monitoring probe 3 work normally and the liquid in the DNAPL layer slowly increases by a small amount, so that the third water-oil interface monitoring probe 4 contacts with the polluted underground water layer and the DNAPL layer, the third water-oil interface monitoring probe 4 sends out an alarm sound, the control system 16 issues an extraction command, the controller 14 controls the air compressor 15 and the water pump 12 to extract the DNAPL layer until the third water-oil interface monitoring probe 4 does not contact with the DNAPL layer, and the sewage monitoring, recording, extraction and repair treatment is completed.
When the liquid of the polluted underground water layer is increased rapidly, the second water-oil interface monitoring probe 3 is firstly contacted with an LNAPL layer and the contact surface of the polluted underground water layer to send out an alarm sound, the control system 16 controls to send a command of extracting the polluted underground water layer to the controller 14, the controller 14 controls the second electromagnetic valve between the air compressor 15 and the second packer 9 to be closed, the first electromagnetic valve and the third electromagnetic valve between the air compressor 15 and the first packer 7 as well as the third packer 11 to be opened, and further controls the air compressor 15 to inflate the first packer 7 and the third packer 11 to enable the first packer 7 and the third packer 11 to be expanded, and the first extraction pipe 6 and the third extraction pipe 10 are compressed to be sealed; the controller 14 controls the water pump 12 to work again, and excess liquid in the LNAPL layer corresponding to the second extraction pipe 8 is extracted into the ton barrel; however, the liquid in the polluted underground water layer is increased too fast, the extraction speed is slower than the increase speed, the polluted underground water layer is still in an increase state, the liquid level of the LNAPL layer is promoted to rise, the first water-oil interface monitoring probe 2 contacts the LNAPL layer, an alarm sound is given, the control system 16 sends a command of extracting the LNAPL layer to the controller 14, the controller 14 controls the air compressor 15 to pump back the gas in the first packer 7, the first extraction pipe 6 is unsealed, the first extraction pipe 6 and the second extraction pipe 8 connected with the water pump 12 simultaneously extract the liquid in the LNAPL layer and the polluted underground water layer, the first extraction pipe 6 stops working when the first water-oil interface monitoring probe 2 does not contact the LNAPL layer, and the second water-oil interface monitoring probe 3 stops working when the second water-oil interface monitoring probe 3 does not contact the contact surface of the LNAPL layer and the polluted underground water layer.
Similarly, when the liquid in the heavy oil layer increases rapidly, the third extraction pipe 10 works first, if the extraction speed is lower than the liquid level increase speed, the interface position on the polluted underground water layer rises, the second extraction pipe 8 and the third drawer pipe 10 work simultaneously, and if the extraction speeds of the second extraction pipe 8 and the third drawer pipe 10 are still lower than the liquid increase speed of the heavy oil layer, so that the LNAPL layer also rises, the first extraction pipe 6, the second extraction pipe 8 and the third drawer pipe 10 work simultaneously until the first water-oil interface monitoring probe 2 does not contact the LNAPL layer, the second water-oil interface monitoring probe 3 does not contact the contact surface of the LNAPL layer and the polluted underground water layer, and the third water-oil interface monitoring probe 4 does not contact the contact surface of the polluted underground water layer and the DNAPL layer.
The utility model has the advantages that: monitoring and recording the changes of high and low water levels of underground water and non-aqueous phase liquid in the pipe well, and taking linkage extraction measures or early warning through data comparison and analysis; the method is suitable for polluted underground water remediation projects and risk management and control projects; the system is simple to maintain; the automatic extraction control system has the characteristics of low cost, high precision, accurate data recording, alarm reminding and the like for automatically controlling the extraction of polluted underground water and non-aqueous phase liquid, does not need to be attended by personnel, and saves a large amount of labor force.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A monitoring extraction equipment for repairing groundwater polluted by non-aqueous phase liquid is characterized by comprising:
the pipe well is internally provided with extraction pipes inserted into different pollution layers, and the outer wall of each extraction pipe is provided with a packer; the pipe well is provided with water-oil interface monitoring probes at the highest positions of different pollution layers;
the air compressor is connected with all the packers through air pipes, and the water pump is connected with the extraction pipe.
2. The monitoring and extraction equipment for repairing the groundwater polluted by the non-aqueous phase liquid as claimed in claim 1, wherein:
the pollution layer in the pipe well comprises an LNAPL layer, a polluted underground water layer and a DNAPL layer from top to bottom, the first extraction pipe, the second extraction pipe and the third extraction pipe correspond to the extraction pipes respectively, and the first extraction pipe, the second extraction pipe and the third extraction pipe are connected with the water pumping port of the water pump through four-way pipe joints.
3. The monitoring and extraction equipment for repairing the groundwater polluted by the non-aqueous phase liquid as claimed in claim 2, wherein:
the water-oil interface monitoring probe comprises a first water-oil interface monitoring probe, a second water-oil interface monitoring probe and a third water-oil interface monitoring probe which are arranged at the highest positions of an LNAPL layer, a polluted underground water layer and a DNAPL layer.
4. The monitoring and extraction equipment for repairing the groundwater polluted by the non-aqueous phase liquid as claimed in claim 2, wherein:
and a first packer, a second packer and a third packer are respectively arranged on the outer sides of the first extraction pipe, the second extraction pipe and the third extraction pipe.
5. The monitoring and extraction equipment for repairing the groundwater polluted by the non-aqueous phase liquid as claimed in claim 1, wherein:
and a valve assembly for controlling the opening and closing of one or more packers is arranged on an air pipe of the air compressor.
6. The monitoring and extraction equipment for repairing the groundwater polluted by the non-aqueous phase liquid as claimed in claim 5, wherein:
the valve component comprises a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve which are arranged on an air pipe communicated with the air compressor, the first packer, the second packer and the third packer.
7. The monitoring and extraction equipment for repairing the groundwater polluted by the non-aqueous phase liquid as claimed in claim 6, wherein:
the system also comprises a control system and a controller;
the input end of the control system is connected with all the water-oil interface monitoring probes;
the output end of the control system is connected with the input end of the controller;
the output end of the controller is connected with the air compressor, the water pump, the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve.
8. The monitoring and extraction equipment for repairing the groundwater polluted by the non-aqueous phase liquid as claimed in claim 1, wherein:
and a container is arranged at the water outlet end of the water pump.
9. The monitoring and extraction equipment for repairing the groundwater polluted by the non-aqueous phase liquid as claimed in claim 1, wherein:
the packer is of an annular air bag structure with an inflation inlet, and the air compressor is connected with the inflation inlet of the packer through an air pipe; the annular air bag seals the extraction pipe after being inflated.
10. The monitoring and extraction equipment for repairing the groundwater polluted by the non-aqueous phase liquid as claimed in claim 1, wherein:
the extraction pipe is a hose made of silica gel.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021396880.6U CN212843828U (en) | 2020-07-15 | 2020-07-15 | Monitoring and extracting equipment for repairing non-aqueous phase liquid polluted underground water |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021396880.6U CN212843828U (en) | 2020-07-15 | 2020-07-15 | Monitoring and extracting equipment for repairing non-aqueous phase liquid polluted underground water |
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| CN212843828U true CN212843828U (en) | 2021-03-30 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113087043A (en) * | 2021-04-25 | 2021-07-09 | 清华大学 | Device and method for repairing underground water polluted by LNAPL (Low noise alkaline peroxide solution) |
| CN115921511A (en) * | 2023-02-27 | 2023-04-07 | 宝航环境修复有限公司 | Method for accurately detecting, extracting and repairing LNAPL pollution source in underground water |
-
2020
- 2020-07-15 CN CN202021396880.6U patent/CN212843828U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113087043A (en) * | 2021-04-25 | 2021-07-09 | 清华大学 | Device and method for repairing underground water polluted by LNAPL (Low noise alkaline peroxide solution) |
| CN115921511A (en) * | 2023-02-27 | 2023-04-07 | 宝航环境修复有限公司 | Method for accurately detecting, extracting and repairing LNAPL pollution source in underground water |
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