CN106830117B - Underground water layered sampling and layered repairing device - Google Patents
Underground water layered sampling and layered repairing device Download PDFInfo
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- CN106830117B CN106830117B CN201710093782.1A CN201710093782A CN106830117B CN 106830117 B CN106830117 B CN 106830117B CN 201710093782 A CN201710093782 A CN 201710093782A CN 106830117 B CN106830117 B CN 106830117B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/06—Contaminated groundwater or leachate
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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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Chemical & Material Sciences (AREA)
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Abstract
The invention relates to a device for layered sampling and layered repairing of underground water, and belongs to the technical field of environmental science and engineering. The underground water layered sampling and layered repairing device consists of a well body, a sampling and repairing unit and a rotary lifting device. The sampling and repairing bin arranged in the well pipe can move up and down to any position in the well pipe along the axial direction of the well pipe, and layered sampling or layered repairing of the underground water at any depth is realized by controlling the sampling and repairing bin to the position to be sampled or repaired. The device integrates the functions of underground water sampling and underground water in-situ remediation into a whole, and can respectively realize the functions of underground water sampling monitoring, underground water multiphase extraction remediation, extraction treatment remediation, aeration remediation, chemical injection remediation and the like by connecting ground water pumping equipment, air extraction equipment, air injection equipment or chemical injection equipment. The invention has the advantages of reasonable structure, simple operation, convenient use and multiple functions of groundwater sampling and multiple technology restoration.
Description
Technical Field
The invention relates to a device for layered sampling and layered repairing of underground water, which is mainly used for sampling and in-situ repairing of an underground water sample with a specified depth and belongs to the technical field of environmental science and engineering.
Background
According to the 'Chinese environmental condition bulletin' in 2013, the proportion of monitoring points with poor water quality and extreme difference water quality in 4778 underground water environmental quality monitoring points in China is 43.91 percent and 15.7 percent respectively. The deterioration of the quality of the underground water causes that the originally relatively short available amount of underground water resources is less and less, and along with the acceleration of the urbanization and industrialization process of China, the problem of underground water pollution in partial areas is more and more prominent, thereby causing serious influence on the production and life of people. The work of protecting the groundwater environment is highly valued, and the work of protecting the groundwater environment and controlling pollution is continuously strengthened.
Due to the heterogeneity of underground aquifers and the like, underground water pollution often has layering, namely, strata at different depths have different pollution characteristics, and therefore layered sampling investigation and layered remediation are needed. At present, the device research of fixed depth hierarchical sampling and repairing is available. However, once the sampling or recovery Regenada is made, most samples or repairs can only be carried out at a fixed depth, and the sampling position and the recovery position cannot be flexibly changed in the implementation process. For example, the invention is named as a multifunctional layered well for sampling and repairing underground water as published in Chinese patent No. CN 205035094U, published in 2016 (2, 17) and named as a multifunctional layered well for sampling and repairing underground water, the multifunctional layered well provided by the application can be used for sampling and monitoring underground water at different vertical depths of a contaminated site, and can also be used for layered injection, layered air extraction or aeration of underground water. However, once the layered well is completed, the depth of layered sampling or repairing is fixed, and the sampling or repairing depth cannot be flexibly changed.
Disclosure of Invention
In view of the existing problems, the invention aims to provide a stratified sampling and stratified repair device for underground water.
In order to achieve the purpose, the technical scheme is as follows: the underground water layered sampling and layered repairing device comprises a well body, a sampling and repairing unit and a rotary lifting device, wherein the well body comprises a well pipe, filter cloth, filler, a connecting seat, a base and a sealing well cover, the well pipe is a cylindrical pipe, four rows of cutting seam areas with uniformly distributed cutting seams are symmetrically arranged on the pipe wall of the well pipe along the axial direction of the well pipe, the cutting seam direction is the horizontal direction, the width of each cutting seam area is 45-degree arc length, the edge interval of each two rows of cutting seam areas is 50-degree arc length, the outer wall of the well pipe is wrapped with the filter cloth, the filler is wrapped outside the filter cloth, the connecting seat is fixedly arranged at the upper end of the well pipe, the sealing well cover is connected with the connecting seat through bolts, the sealing well cover is provided with a first through hole, a second through hole and a first pumping hole, the first through hole is connected with a first guide pipe, the base is fixed at the bottom of the well pipe, and the upper surface of the base is provided with a positioning hole.
The sampling and repairing unit comprises a sampling and repairing bin, a guide pipe and a pumping and injecting hose, wherein the sampling and repairing bin is in an annular cylinder sandwich shape, a third through hole and a second pumping and injecting hole are formed in the top of the sampling and repairing bin, a fourth through hole is formed in the bottom of the sampling and repairing bin, a second guide pipe is connected between the third through hole and the fourth through hole, a third guide pipe is connected to the upper end of the second guide pipe, the upper end of the first pumping and injecting hose is connected with the second pumping and injecting hole, the lower end of the first pumping and injecting hose is located at the bottom of the sampling and repairing bin, the second pumping and injecting hole is further connected with the second pumping and injecting hose, four rows of cutting seams which are uniformly distributed in a staggered mode are symmetrically formed in the axial direction of the sampling and repairing bin on the outer cylindrical surface of the sampling and repairing bin, the cutting seams are in the vertical direction, the width of the cutting seams is 45-degree arc length, the edge distance of each two rows of cutting seams is 50-degree, and threads in the axial direction of the sampling and repairing bin are formed on the outer wall of the inner cylindrical surface of the sampling and repairing bin.
The rotary lifting device consists of a rotating shaft, a motor and a support, wherein the rotating shaft is provided with threads, the upper end of the rotating shaft is connected to the motor, and the motor is fixed above the underground water layered sampling and layered repairing device through the support.
The sampling and repairing bin is movably arranged in the well pipe, the rotating shaft is movably inserted into the sampling and repairing bin, threads on the rotating shaft are matched and connected with threads on the outer wall of the inner cylindrical surface of the sampling and repairing bin, the lower end of the rotating shaft is movably inserted into the positioning hole in the base, the third conduit is led out through the second through hole, the second pumping and injecting hose is led out through the first pumping and injecting hole, and a leading-out end of the third conduit, a leading-out end of the second pumping and injecting hose and the first conduit are respectively provided with a valve.
The well pipe and the sampling and repairing bin are made of PVC materials or stainless steel materials subjected to anti-corrosion treatment.
Due to the adoption of the technical scheme, the underground water layered sampling and layered repairing device has the following technical characteristics and advantages:
1. the sampling and repairing bin arranged in the well pipe can move up and down to any position in the well pipe along the axial direction of the well pipe under the driving of the rotation of the rotating shaft, and the layered sampling or layered repairing of the groundwater at any depth can be realized by controlling the sampling and repairing bin to the position to be sampled or repaired.
2. The underground water sampling and repairing device is provided with a sampling and repairing bin integrating underground water sampling and underground water in-situ repairing functions, and multiple functions of underground water sampling monitoring, underground water multiphase extraction repairing, extraction treatment repairing, aeration repairing, chemical injection repairing and the like can be realized by connecting ground pumping equipment, air extraction equipment, air injection equipment or chemical injection equipment.
3. The well pipe and the sampling and repairing bin are respectively provided with a slotting region with the same width and different slotting directions. When the two slotted areas are completely overlapped, a pore area which enables the sampling and repairing bin to be communicated with underground water can be formed, and water collection or air suction and medicine injection are carried out through pores. When the two slot areas are completely staggered, the underground water is isolated from the sampling and repairing bin, so that staggered water stop is realized.
The underground water layered sampling and layered repairing device is reasonable in structure, simple to operate and convenient to use, has the multifunctionality of underground water sampling and multiple-technology repairing, realizes layered sampling and layered repairing of underground water at any specified depth, and has wide application prospect and practical value.
Drawings
FIG. 1 is a schematic structural diagram of a layered groundwater sampling and layered remediation device.
FIG. 2 is a schematic representation of a well casing slot.
FIG. 3 is a schematic diagram of a cylindrical surface slotting outside a sampling and repairing bin.
Detailed Description
The invention is described in further detail below with reference to the attached drawing figures.
The device for layered sampling and layered repairing of underground water consists of a well body, a sampling and repairing unit and a rotary lifting device. The well body comprises well casing 1, filter cloth 2, filler 3, connecting seat 4, sealed well lid 5 and base 6. The well pipe 1 is a cylindrical pipe, and four rows of cutting seam regions with uniformly distributed cutting seams are symmetrically arranged on the pipe wall of the well pipe 1 along the axial direction of the well pipe 1. The cutting direction is horizontal, the width of the cutting area is 40 degrees of arc length, and the edge distance of every two rows of cutting areas is 50 degrees of arc length. The outer wall of the well pipe 1 is wrapped with filter cloth 2. The filter cloth 2 is wrapped by filler 3. The filler 3 can be backfill soil of excavated soil of a well, and the permeability is equal to or slightly less than that of an original soil layer so as to avoid the flow of underground water, medicament or injected gas along the direction of a well wall. The upper end of the well pipe 1 is fixedly provided with a connecting seat 4. The sealing well cover 5 is connected with the connecting seat 4 through bolts. The sealed well lid 5 is provided with a first through hole 7, a second through hole 8 and a first pumping hole 9. The first through hole 7 is connected with a first conduit 10. A first conduit 10 connects the cavity above the sampling and repair chamber 11 to the atmosphere. When the sampling and repairing chamber 11 moves up and down, the pressure in the cavity above the sampling and repairing chamber 11 is released or supplemented through the first conduit 10. The base 6 is fixed at the bottom of the well pipe 1, and the upper surface of the base 6 is provided with a positioning hole.
The sampling and repairing unit consists of a sampling and repairing cabin 11, a conduit and a pumping and injecting hose. The sampling and repairing bin 11 is in a shape of an annular cylinder and a sandwich layer. The sampling and repairing bin 11 is provided with a third through hole 12 and a second pumping hole 13 at the top and a fourth through hole 14 at the bottom. A second conduit 15 is connected between the third through hole 12 and the fourth through hole 14. The upper end of the second conduit 15 is connected with a third conduit 16. The upper end of the first pumping hose 17 is connected to the second pumping hole 13. The lower end is located at the bottom of the sampling and repair chamber 11. A second suction/injection hose 18 is also connected to the second suction/injection hole 13. On the outer cylindrical surface of the sampling and repairing bin 11, four rows of slotting regions which are staggered and uniformly distributed are symmetrically arranged along the axial direction of the sampling and repairing bin 11. The slotting is in the vertical direction, the width of the slotting area is 40 degrees of arc length, and the edge distance of every two rows of slotting areas is 50 degrees of arc length. The outer wall of the inner cylindrical surface of the sampling and repairing bin 11 is provided with threads along the axial direction of the sampling and repairing bin 11.
The rotary lifting device is composed of a rotating shaft 19, a motor 20 and a bracket 21. The rotating shaft 19 is provided with threads. The upper end of the rotating shaft 19 is connected to a motor 20. The motor 20 is fixed above the underground water layered sampling and layered repairing device through a bracket 21.
The sampling and repairing bin 11 is movably arranged in the well pipe 1. The rotating shaft 19 is movably inserted into the sampling and repair chamber 11. The thread on the rotating shaft 19 is matched and connected with the thread on the outer wall of the inner cylindrical surface of the sampling and repairing bin 11. The lower end of the rotating shaft 19 is movably inserted into a positioning hole on the base 6. The support 21 and the base 6 ensure the stability of the rotating shaft without tilting. The third conduit 16 leads out through the second through hole 8. The second suction hose 18 leads out through the first suction opening 9. Valves are respectively arranged on the leading-out end of the third conduit 16, the leading-out end of the second pumping hose 18 and the first conduit 10.
The well pipe 1 and the sampling and repairing bin 11 are made of PVC materials or stainless steel materials subjected to anti-corrosion treatment, so that long-term underground water immersion corrosion or corrosion of corrosive agents is ensured.
The invention relates to a working principle of a device for layered sampling and layered repairing of underground water, which comprises the following steps:
when the device is adopted to carry out underground water layered sampling, the sampling method comprises the following steps:
1) Opening a valve on the leading-out end of the third conduit, the leading-out end of the second pumping and injecting hose and the first conduit;
2) Turning on a motor to enable a rotating shaft to rotate slowly, driving the sampling and repairing bin to move up and down to a specified position in the well pipe, enabling a slotted zone on the well pipe to be completely staggered with a slotted zone on the outer cylindrical surface of the sampling and repairing bin, and turning off the motor;
3) The ground pumping device is used for pumping the underground water in the sampling and repairing bin through the first pumping and injecting hose and the second pumping and injecting hose;
4) Turning on a motor, enabling a rotating shaft to slowly rotate until a slotting area on a well pipe is completely overlapped with a slotting area on a cylindrical surface outside the sampling and repairing bin, and turning off the motor;
5) After the sampling and repairing bin is filled with the underground water, the underground water in the sampling and repairing bin is pumped to a ground collecting device through a first pumping and injecting hose and a second pumping and injecting hose;
6) Turning on a motor, enabling the rotating shaft to slowly rotate for 45 degrees, enabling a slotted zone on the well pipe to be completely staggered with a slotted zone on the outer cylindrical surface of the sampling and repairing bin, and turning off the motor;
7) And (4) extracting and cleaning the sampling and repairing bin by using the ground extraction device, and preparing for next use.
When the device is adopted to carry out groundwater layered remediation, the remediation method comprises the following steps:
1) Opening a valve on the leading-out end of the third conduit, the leading-out end of the second pumping and injecting hose and the first conduit;
2) Turning on a motor to enable a rotating shaft to rotate slowly, driving the sampling and repairing bin to move up and down to a specified position in the well pipe, enabling a slotted zone on the well pipe to be completely staggered with a slotted zone on the outer cylindrical surface of the sampling and repairing bin, and turning off the motor;
3) The ground extraction device is used for completely extracting the underground water in the sampling and repairing bin through the first pumping and injecting hose and the second pumping and injecting hose, and valves on the leading-out end of the third conduit and the leading-out end of the second pumping and injecting hose are closed;
4) Turning on a motor, enabling a rotating shaft to slowly rotate until a slotting area on a well pipe is completely overlapped with a slotting area on a cylindrical surface outside the sampling and repairing bin, and turning off the motor;
5) Injecting a repairing medicament or gas into the sampling and repairing bin through the first pumping and injecting hose and the second pumping and injecting hose to carry out chemical repairing or aeration repairing; or extracting and sampling and repairing underground water in the bin to perform extraction treatment and repair.
Claims (2)
1. Groundwater stratified sampling and layering prosthetic devices, its characterized in that: the device comprises a well body, a sampling and repairing unit and a rotary lifting device, wherein the well body comprises a well pipe (1), filter cloth (2), a filler (3), a connecting seat (4), a sealing well cover (5) and a base (6), the well pipe (1) is a cylindrical pipe, four rows of cutting seam regions with uniformly distributed cutting seams are symmetrically formed in the pipe wall of the well pipe (1) along the axis direction of the well pipe (1), the cutting seam direction is the horizontal direction, the width of each cutting seam region is 40 degrees of arc length, the edge distance between every two rows of cutting seam regions is 50 degrees of arc length, the filter cloth (2) wraps the outer wall of the well pipe (1), the filler (3) wraps the outer side of the filter cloth (2), the connecting seat (4) is fixedly arranged at the upper end of the well pipe (1), the sealing well cover (5) is connected with the connecting seat (4) through bolts, a first through hole (7), a second through hole (8) and a first pumping hole (9) are formed in the sealing well cover (5), a first guide pipe (10) is connected with the base (6) fixed at the bottom of the well pipe (1), and a positioning hole (9) is formed in the upper surface of the base (6);
the sampling and repairing unit comprises a sampling and repairing bin (11), a guide pipe and a pumping and injecting hose, the sampling and repairing bin (11) is in an annular cylinder interlayer shape, a third through hole (12) and a second pumping and injecting hole (13) are formed in the top of the sampling and repairing bin (11), a fourth through hole (14) is formed in the bottom of the sampling and repairing bin, a second guide pipe (15) is connected between the third through hole (12) and the fourth through hole (14), a third guide pipe (16) is connected to the upper end of the second guide pipe (15), the upper end of a first pumping and injecting hose (17) is connected with the second pumping and injecting hole (13), the lower end of the first pumping and injecting hose is located at the bottom of the sampling and repairing bin (11), a second pumping and injecting hose (18) is further connected to the second pumping and injecting hose (13), four rows of cutting seams are symmetrically formed in the axial direction of the sampling and repairing bin (11), the cutting seams are distributed in a staggered mode and uniform mode and are formed in the axial direction of the sampling and repairing bin (11), the cutting seams are in the vertical direction, the width of the cutting seams is 40 degrees, the distance between every two rows of the cutting seams is 50 degrees, and repairing bin, and the sampling and repairing bin is arranged on the axial direction of the sampling and repairing bin outer wall of the sampling and repairing bin (11);
the rotary lifting device consists of a rotating shaft (19), a motor (20) and a support (21), wherein the rotating shaft (19) is provided with threads, the upper end of the rotating shaft (19) is connected to the motor (20), and the motor (20) is fixed above the underground water layered sampling and layered repairing device through the support (21);
the sampling and repairing bin (11) is movably arranged in the well pipe (1), the rotating shaft (19) is movably inserted into the sampling and repairing bin (11), threads on the rotating shaft (19) are matched and connected with threads on the outer wall of the inner cylindrical surface of the sampling and repairing bin (11), the lower end of the rotating shaft (19) is movably inserted into a positioning hole in the base (6), the third conduit (16) is led out through the second through hole (8), the second pumping and injecting hose (18) is led out through the first pumping and injecting hole (9), and valves are respectively arranged on the leading-out end of the third conduit (16), the leading-out end of the second pumping and injecting hose (18) and the first conduit (10).
2. The groundwater layered sampling and layered remediation device of claim 1, wherein: the well pipe (1) and the sampling and repairing bin (11) are made of PVC materials or stainless steel materials subjected to anti-corrosion treatment.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710093782.1A CN106830117B (en) | 2017-02-21 | 2017-02-21 | Underground water layered sampling and layered repairing device |
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| CN201710093782.1A CN106830117B (en) | 2017-02-21 | 2017-02-21 | Underground water layered sampling and layered repairing device |
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| CN106830117A CN106830117A (en) | 2017-06-13 |
| CN106830117B true CN106830117B (en) | 2023-02-28 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107462442B (en) * | 2017-09-04 | 2024-02-27 | 珠海云洲无人船科技有限公司 | Layered sampling device and ship |
| CN108188161A (en) * | 2018-02-11 | 2018-06-22 | 中国科学院武汉岩土力学研究所 | It is a kind of for soil and underground water in-situ immobilization can control multifunctional pumping vertical shaft device |
| CN109297767B (en) * | 2018-11-13 | 2024-02-23 | 江苏省环境科学研究院 | Well pipe device and method for groundwater layered sampling |
| CN116242667B (en) * | 2023-05-12 | 2023-07-21 | 北京沃太斯环保科技发展有限公司 | Underground water layered sampling and layered repairing device |
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| CN106830117A (en) | 2017-06-13 |
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