KR20160000236A - Monitoring device for muilti-level groundwater - Google Patents

Monitoring device for muilti-level groundwater Download PDF

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Publication number
KR20160000236A
KR20160000236A KR1020140077376A KR20140077376A KR20160000236A KR 20160000236 A KR20160000236 A KR 20160000236A KR 1020140077376 A KR1020140077376 A KR 1020140077376A KR 20140077376 A KR20140077376 A KR 20140077376A KR 20160000236 A KR20160000236 A KR 20160000236A
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South Korea
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groundwater
sampling
pipe
ground
sample
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KR1020140077376A
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Korean (ko)
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고용권
박경우
권장순
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한국원자력연구원
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Priority to KR1020140077376A priority Critical patent/KR20160000236A/en
Publication of KR20160000236A publication Critical patent/KR20160000236A/en

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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/08—Obtaining fluid samples or testing fluids, in boreholes or wells
    • 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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  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Fluid Mechanics (AREA)
  • Health & Medical Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Sampling And Sample Adjustment (AREA)

Abstract

The present invention relates to a multi-level groundwater monitoring apparatus, and more particularly, it relates to a multi-level groundwater monitoring apparatus, in which a groundwater sampling pipe connected to each packing section is selectively connected to a sampling chamber Only the groundwater sampling pipes connecting the respective packing sections within the diameter of the center induction pipe limited according to the size of the borehole by simplifying the construction so as to connect them and continuously collect them by pumping them to the ground using a single underwater motor installed in the sampling chamber So that it is possible to set more depth packing intervals and to collect groundwater samples of each depth from the ground more easily and continuously.

Description

[0001] MONITORING DEVICE FOR MUILTI-LEVEL GROUNDWATER [0002]

The present invention relates to a multi-level groundwater monitoring apparatus, more particularly, to simplify the configuration of a multi-level groundwater monitoring apparatus, and to set more packing intervals for each depth, and to continuously monitor groundwater samples Level groundwater monitoring device.

As is well known, groundwater flows from a high altitude to a low altitude of the groundwater surface, and groundwater has different inherent characteristics depending on the depth of the ground.

Groundwater is inspected by excavation of the borehole. In some cases, it is investigated in the pore state. However, the double packer method for detecting the groundwater characteristics at a specific depth, and the multi-packer type groundwater monitoring devices for detecting and monitoring the groundwater characteristics by depth Is used.

The double packer system consists of an upper packer, a lower packer, a center induction tube and a packer pressure tube, and the packer is configured to be connected to the packer pressure tube as a rubber material.

Therefore, when the double packer system is installed at the desired depth in the borehole, air pressure is applied from the ground through the packer pressure tube, the upper and lower packers are expanded and closely contact with the borehole wall surface to isolate groundwater of a certain depth from groundwater of different depth, Inspect the isolated groundwater between the upper and lower packers through the port and central guide tube.

However, the double packer method has a disadvantage in that groundwater is partially investigated only for groundwater of a specific depth.

The multi-packer method is a method in which a plurality of packers are installed on the borehole after the survey on the borehole is completed, the water temperature and water pressure of the isolated groundwater between each packer is measured, and groundwater samples are collected and monitored by depth.

The multi-packer system uses the Westbay method, in which the measuring device and the sampler are moved between several packers installed in the borehole, and the water temperature and the water pressure of the groundwater are measured and sampled. Solexperts method is used to measure water temperature and water pressure and to collect groundwater.

The Westbay method consists of a packer, a measuring port, a pumping port, a central guide pipe, a connecting pipe, a sample measuring device and a sampling container. Based on the borehole survey data, A port, a positive port, a center induction pipe and a connection pipe are installed. A sample analyzer and a sample collection container are placed in the measurement port and the positive port through the center induction pipe to measure the water temperature and water pressure of the groundwater, .

Particularly, the sample analyzer and the sample collection container are inserted from the ground using the wire containing the wire, and the opening and closing operation of the sample analyzer and the sample collection container is made possible on the ground. The sample collection container is vacuum- Use the vacuum pressure at the port location to ensure that uncontaminated groundwater can be collected.

The induction tube is equipped with a magnetic sensor for precisely positioning the sampler and the sample collecting container in each measuring port and the positive port. The method of expanding the packer uses a separate high pressure liquid injecting device and a check valve Respectively.

Therefore, in order to confirm whether the internal pressure of the packer is maintained, it is troublesome to check the reduced packer pressure or to compensate the pressure by reconnecting the liquid injection device, and the sample measuring device and the sample collecting container In order to measure each of the packer intervals, the sample analyzer and the sampling container are moved to the respective measurement ports and the positive port positions repeatedly without being restricted by the number of the packers installed in the borehole. In order to collect the groundwater in each packer section, it is necessary to repeat the complicated processes of vacuuming the sample collection vessel again. Therefore, it takes a lot of manpower and time to monitor the groundwater by depth.

The Solexperts system consists of a packer, a center induction pipe, a double valve pump, a packer pressure pipe, a ground water sampling pipe, a ground water pressure pipe, a groundwater pressure measurement pipe, a sampling port and a measurement port. Although the same number of packers are installed, each packer can be directly connected to the ground and the packer pressure tube as in the double packer method, and the packer can be inflated, and the pressure inside the packer can always be confirmed for each packer. In addition, groundwater sampling pipes are directly connected to the central guide pipe between the packer and the packer, and a double valve pump is provided to collect ground water from the ground.

However, the Solexperts method has the advantage that groundwater in each packer section can be easily taken from the ground by using a built-in small double valve pump by directly connecting each packer section to the induction pipe, Since the four guide pipes (ground water pressure pipe, ground water sampling pipe, packer pressure pipe, ground water pressure pipe) are connected to the ground, the number of induction pipes increases proportionally as the number of the packer sections increases. In particular, although the depth of the borehole having a deep depth is required to be monitored in many sections separately from the depth of the borehole, there is a problem in that it is impossible to install a packer, and groundwater monitoring can not be performed as many times as desired.

European Patent Application No. 99942665.3 (filed on September 08, 1999) European Patent Application No. 01300142.5 (filed December 13, 1996)

It is an object of the present invention to solve the above-mentioned problems, and more particularly, to simplify the construction of the system so that more packing intervals can be set up, and the groundwater samples of each depth can be continuously collected and monitored Level groundwater monitoring device.

According to another aspect of the present invention, there is provided a multi-level groundwater monitoring apparatus including a plurality of groundwater inflow ports formed in a borehole, tube; The inner air pressure is adjusted through a packer pressure tube installed along the central induction pipe and is closely contacted with the borehole wall surface. A plurality of packers expanding to isolate groundwater of different depths; A plurality of groundwater sampling tubes each extending in the central guide pipe and connecting the respective groundwater inflow ports so as to collect groundwater samples per depth of each packing section isolated by the packers; A plurality of groundwater sampling pipes connected to the groundwater sample transporting pipe, the groundwater sampling pipe being rotatably installed on the upper side of the central guide pipe and selectively connecting one of the groundwater sampling pipes to the ground, And a men's folder.

A sampling chamber provided above the rotary manifold and filled with a groundwater sample introduced through the groundwater sample pooling pipe alternatively connected by the rotary manifold; And an underwater pump installed in the sampling chamber and pumping the groundwater sample selectively filled in the sampling chamber to the ground through the groundwater sample transfer pipe.

The rotary manifold is fixed on the central induction pipe and has a plurality of first through holes for connecting the groundwater sampling pipes along the circumferential direction. And a second connecting through hole for connecting to the sampling chamber through a groundwater sample connecting tube, each of the first connecting through holes being rotatable about the stationary disc and being rotatably coupled by a stepping motor, And a rotating disk which is formed so as to be connected to the rotating disk.

In addition, a measuring instrument accommodating pipe for accommodating a measuring instrument may be further provided at an upper end of each of the ground water sampling pipes connected to the first connection holes of the fixed disk.

In addition, the measuring instrument installed in the measuring instrument accommodating tube may be at least one selected from a ground water pressure measuring instrument, a ground water temperature measuring instrument, and a groundwater electrical conductivity measuring instrument.

According to the above-described multi-level groundwater monitoring apparatus of the present invention, groundwater sampling pipes connected to each packing section are selectively connected to sampling chambers provided on the upper side of the central induction pipe, Only the groundwater sampling pipes connecting the respective packing sections within the diameter of the center induction pipe limited according to the size of the borehole by simplifying the construction so as to connect them and continuously collect them by pumping them to the ground using a single underwater motor installed in the sampling chamber So that it is possible to set more depth packing intervals and to collect groundwater samples of each depth from the ground more easily and continuously.

FIG. 1 is a schematic view showing groundwater collection statuses at various depths of a borehole using a multi-level groundwater monitoring apparatus according to an embodiment of the present invention.
2 is a partially cutaway perspective view of the borehole provided with the multi-level groundwater monitoring apparatus of FIG.
3 is an enlarged perspective view of the multi-level groundwater monitoring apparatus of FIG.
Figure 4 is a side view of the multi-level groundwater monitoring apparatus of Figure 3;
5 is a partial side cross-sectional schematic view of a center induction tube showing a groundwater sampling tube installed in the multilevel groundwater monitoring apparatus of FIG.
6 is a principal perspective view showing the operating state of the rotary manifold of Fig.
FIG. 7 is a partial side sectional view showing a process of sampling depth-wise groundwater using the multi-level groundwater monitoring apparatus of FIG.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. In order to clearly illustrate the present invention, parts not related to the description are omitted, and the same or similar components are denoted by the same reference numerals throughout the specification.

FIG. 1 is a schematic view showing a groundwater collection state at each depth of a borehole using a multi-level groundwater monitoring apparatus according to an embodiment of the present invention. FIG. 2 is a partial cutaway perspective view of a borehole equipped with the multi- to be.

Referring to FIGS. 1 and 2, the multi-level groundwater monitoring apparatus 1 of the present embodiment inserts a groundwater sample into the borehole drilled down to the ground surface from the ground surface, It enables continuous monitoring of groundwater characteristics through various types of analysis devices on the ground.

FIG. 3 is an enlarged perspective view of the multi-level groundwater monitoring apparatus of FIG. 2, and FIG. 4 is a side view of the multi-level groundwater monitoring apparatus of FIG.

3 and 4, the multi-level groundwater monitoring apparatus 1 of the present embodiment includes a central induction pipe 10, a packer 20, a packer pressure pipe 30, a groundwater sampling pipe 40, (80), a stepping motor (70), a rotary manifold (60), and an underwater pump (90).

The center induction pipe 10 has a length of pipe shape and a plurality of groundwater inflow ports 11 are formed at predetermined intervals so as to collect groundwater at each depth set along the length direction.

The packers 20 are installed on the outer circumferential surface of the central induction pipe 10 so as to be able to contract and expand along the longitudinal direction with the respective groundwater inflow ports 11 interposed therebetween.

The packer pressure tube 30 is installed to connect the packers 20 along the longitudinal direction at one side of the central induction pipe 10 and adjust the internal air pressure so that the packers 20 20 are expanded so that groundwater can be isolated without being mixed with each other at packing depths L1 to L8 (see FIG. 5) of each depth formed between the respective packers 20.

The groundwater sampling pipes 40 are provided inside the central induction pipe 10 so as to collect groundwater samples at respective depths of the packing sections L1 to L8 isolated by the packers 20 So that the groundwater inflow ports 11 are connected.

5 is a partial side cross-sectional schematic view of a center induction tube showing a groundwater sampling tube installed in the multilevel groundwater monitoring apparatus of FIG.

5, the present embodiment uses eight groundwater sampling tubes 40 (40 (a) to 40 (h)) to define eight packing intervals L1 The groundwater inflow ports 11 of the central induction pipe 10 formed in the first through the fourth through L8 may be connected to collect groundwater samples at respective depths.

However, the present invention is not limited to this, and the number of packers 20 and the groundwater sampling pipe 40 installed in the central induction pipe 10 may be increased to collect groundwater samples at different depths of the packing section. It is natural that it can be done.

In particular, in the case of the multi-level groundwater monitoring apparatus 1 of the present embodiment, in addition to the groundwater sampling pipe 40 for collecting groundwater samples at each depth in the central guide pipe 10, And connecting lines for connecting various measuring instruments, it is possible to further increase the number of groundwater sampling pipes 40 and to further divide the packing intervals for collecting groundwater samples at each depth.

3 and 4, the sampling chamber 80 is provided on the upper side of the central induction pipe 10 so that the groundwater sampling pipes 40 (40 (a) to 40 (h)) Thereby selectively storing the groundwater sample that has been selectively introduced.

The rotary manifold 60 is connected between the central induction pipe 10 and the sampling chamber 80 so as to be rotatable by a stepping motor 70 so that the groundwater sampling pipes 40, ) To 40 (h) are alternatively connected to the sampling chamber 80 so that the groundwater sample flowing through the groundwater sampling pipe 40 of selected depth is pumped to the ground using an underwater motor 90 So as to be filled in the sampling chamber 80.

FIG. 6 is a perspective view showing the operation of the rotary manifold of FIG. 3, and FIG. 7 is a partial cross-sectional view illustrating a process of sampling groundwater by depth using the multi-level groundwater monitoring apparatus of FIG.

6 and 7, the rotary manifold 60 includes a fixed disk 65 and a rotating disk 61. [

The fixed disk 65 is fixed on the central induction pipe 10 and has a plurality of first connections for connecting the groundwater sampling pipes 40 (40 (a) to 40 (h)) along the circumferential direction, Through holes 67: 67 (a) to 67 (h) are formed.

The rotating disk 61 is rotatably coupled to the fixed disk 65 by the stepping motor 70 and connected to the sampling chamber 80 via the groundwater sample connection pipe 85. [ And the second connection through-hole 63 is formed through.

Therefore, the rotary disk 61 of the rotary manifold 60 is rotated by a predetermined angle by using the stepping motor 70 so that the second connection through-hole 63 formed in the rotary disk 61 is fixed to the fixed disk 65, (L 1 to L 8) of the selected depth as described above by alternatively connecting the first connection holes (67: 67 (a) to 67 (h) The groundwater sample supplied through the sampling chambers 40: 40 (a) to 40 (h) is filled in the sampling chamber 80.

40 (a) to 40 (h)) connected to the first connection holes 67 (67 (a) to 67 (h) of the fixed disk 65) And a measuring instrument accommodating pipe 55 for accommodating the measuring instrument 50 is provided at the upper end.

In this embodiment, the measuring instrument 50 installed inside each measuring instrument accommodating pipe 55 is connected to the groundwater of each depth water introduced through the respective ground water sampling pipes 40 (40 (a) to 40 (h) And an underground water pressure gauge for measuring the pressure.

However, the present invention is not limited to this. The measuring instrument 50 provided inside the measuring instrument housing pipe 55 may further include a groundwater temperature measuring instrument for measuring the ground water temperature, a groundwater temperature measuring instrument for measuring groundwater temperature, It may be made of measuring instruments capable of measuring groundwater characteristics in various forms including an electric conductivity meter and it is natural that one or more of them can be installed together if necessary.

The connection lines connecting the measuring device 50 are not shown in the figure but may be drawn out through the measuring instrument accommodating pipe 55 and grounded along the packer pressure tube 30 or the ground water sample conveying pipe 95 have.

Therefore, according to the type of the measuring instrument 50 installed in the measuring instrument storage pipe 55, groundwater characteristics such as ground water pressure, ground water temperature and groundwater electrical conductivity of each groundwater can be directly measured and monitored underground.

The underwater pump 90 is installed in the sampling chamber 80 so that the groundwater sample having a specific depth selectively filled in the sampling chamber 80 can be pumped to the ground through the groundwater sample transfer pipe 95.

Hereinafter, a process of continuously sampling the groundwater samples at each depth using the multi-level groundwater monitoring apparatus 1 of the present embodiment will be described in detail.

First, after the completion of the borehole survey, if the groundwater is selected in the interval to be monitored, the multi-level monitoring apparatus 1 of the embodiment described above is assembled and inserted so as to be installed in the borehole considering the depth of each packer installation from the ground.

When the assembled multilevel monitoring apparatus 1 is inserted into the depth of the borehole of the borehole, the air pressure is applied through the packer pressure tube 30 on the ground to inflate the respective packers 20 in close contact with the borehole wall surface.

Therefore, the groundwater between the expanded packers is isolated in depth so as not to be mixed with the groundwater at different depths, and the groundwater according to the depth of each of the packing sections L1 to L8 flows into the groundwater inflow port 11 Through the operation of the rotary manifold 60 by the aerator stepping motor 70 toward the rotary manifold 60 via the ground water sampling pipes 40 (40 (a) - 40 (h) Ensure that continuous sampling of groundwater samples at each depth is possible.

At this time, groundwater according to the depths of the packing sections L1 to L8 is connected to the fixed disk 65 of the rotation manifold 60 while maintaining groundwater characteristics such as ground water pressure, ground water temperature and groundwater electrical conductivity as they are It is possible to measure and monitor the groundwater underground in real time through measuring instruments such as groundwater pressure measuring instrument, groundwater temperature measuring instrument and groundwater electrical conductivity measuring instrument installed in the measuring instrument accommodating pipe 55.

For example, when the groundwater sample of the first packing section L1 is to be taken to the ground among the first to eighth packing sections L1 to L8, The rotary disk 61 is rotated at a predetermined angle so that the second connection hole 67 of the rotary disk 61 is connected to the first connection holes 67 (67 (a) to 67 (h) Through the first groundwater sampling pipe 40 (a) in the first packing section L1 and the first connection hole 67 (a) connected to the groundwater inlet port 11 of the first packing section L1, The groundwater in the depth of the first packing section L1 is selectively filled into the sampling chamber 80 through the groundwater sample connection pipe 85 connected to the second connection through hole 63, And the groundwater sample is sampled at a depth of the first packing section (L1).

When the groundwater samples of different packing sections (L2 to L8) are to be collected on the ground, the rotary disk 61 of the rotary manifold 60 is rotated using the stepping motor 70 in the same manner, And the second connection hole formed in the first connection hole 61 is aligned with the corresponding first connection hole 67 (67 (b) to 67 (h) formed in the fixed disk 65) The sample shall be pumped to the ground so that it can be collected.

 The above steps are repeated while rotating the rotary disk 61 of the rotary manifold 60 by the stepping motor 70 at predetermined intervals to form the first to eighth packing sections L1 to L8, It is also possible to sequentially take samples of the ground water continuously.

The groundwater samples of the respective depth packing sections (L1 to L8) pumped to the ground are filled in the analysis tank of the ground-based analysis apparatus 100 (see FIG. 1) It is possible to carry out monitoring by performing chemical analysis and chemical analysis such as pH, Eh, EC, DO and temperature which can not be attained.

Accordingly, the multi-level groundwater monitoring apparatus 1 of the present embodiment can use the above-described rotary manifold 60 to selectively supply the groundwater sampling pipes 40 to the neutral induction pipe (not shown) 10 by using a single submersible motor 90 provided in the sampling chamber 80 to simplify the construction of the borehole so that the borehole can be continuously collected by pumping it to the ground. Only the groundwater sampling pipes 40 connecting the respective packing sections within the diameter of the central induction pipe 10 are installed so as to enable setting of packing sections with a greater depth, So that it can be easily collected from the ground and monitored.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but many variations and modifications may be made without departing from the spirit and scope of the invention. And it goes without saying that they belong to the scope of the present invention.

1: Multi-level groundwater monitoring device 10: Central induction pipe
11: groundwater inflow port 20: packer
30: Packer pressure tube 40: Ground water sampling tube
50: measuring instrument 55: measuring instrument storage tube
60: rotation manifold folder 61: rotating disk
62: shaft fixing hole 63: second connection hole
65: fixed disk 67: first connection hole
70: Stepping motor 80: Sampling chamber
85: Groundwater sample connector 90: Submerged pump
95: groundwater sample transfer tube

Claims (5)

A center induction pipe through which a plurality of groundwater inflow ports are formed through the borehole at predetermined intervals along the longitudinal direction so as to collect groundwater at each depth;
The inner air pressure is adjusted through a packer pressure tube installed along the central induction pipe and is closely contacted with the borehole wall surface. A plurality of packers expanding to isolate groundwater of different depths;
A plurality of groundwater sampling tubes each extending in the central guide pipe and connecting the respective groundwater inflow ports so as to collect groundwater samples per depth of each packing section isolated by the packers; And
A rotating mechanism for rotatably installing the groundwater sample on the upper side of the central guide pipe and connecting one of the groundwater sampling pipes to a groundwater sample transporting pipe extending to the ground, Folder; a multi-level groundwater monitoring device.
The method of claim 1,
A sampling chamber provided above the rotary manifold and filled with a groundwater sample introduced through the groundwater sample pooling pipe alternatively connected by the rotary manifold; And
And an underwater pump installed within the sampling chamber to pump the groundwater sample selectively filled into the sampling chamber to the ground via the groundwater sample transfer tube.
3. The method of claim 2,
Wherein the rotation manifold includes:
A plurality of first connection holes formed on the center induction pipe to connect the groundwater sampling pipes along a circumferential direction; And
A second connection through hole for connecting to the sampling chamber through a groundwater sample connection tube is rotatably mounted on the fixed disk and is rotatably coupled to the first connection through holes by a stepping motor, And a rotating disk penetratingly connected to the ground.
4. The method of claim 3,
And a measuring instrument accommodating tube for accommodating a measuring instrument at an upper end of each of the ground water sampling tubes connected to the first connection holes of the fixed disk.
5. The method of claim 4,
The measuring instrument installed in the measuring instrument housing tube,
A groundwater pressure meter, a groundwater temperature meter, and a groundwater electrical conductivity meter.
KR1020140077376A 2014-06-24 2014-06-24 Monitoring device for muilti-level groundwater KR20160000236A (en)

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KR101940407B1 (en) 2017-07-14 2019-01-22 주식회사 지오엑스퍼츠 groundwater multi depth monitoring system
US10208585B2 (en) 2015-08-11 2019-02-19 Intrasen, LLC Groundwater monitoring system and method
CN109596498A (en) * 2018-12-25 2019-04-09 核工业北京地质研究院 A kind of field lixiviation experimental method suitable for Gobi deserf area
WO2019071357A1 (en) * 2017-10-12 2019-04-18 Beth Louise Parker Depth discrete multi-level downhole system for groundwater testing and management
KR102236035B1 (en) * 2021-01-12 2021-04-06 (주)인텔리지오 Packer apparatus using heavy body in the borehole and construction method thereof
KR102279806B1 (en) * 2021-01-12 2021-07-20 (주)인텔리지오 Apparatus for measuring in-situ water pressure in the borehole
CN113310743A (en) * 2021-04-24 2021-08-27 安徽民安检验检测技术有限公司 Food detects uses sampling subassembly
CN113588343A (en) * 2021-08-04 2021-11-02 山东恒诚检测科技有限公司 Sewage cross section sampling device for water quality environment detection
CN114509306A (en) * 2022-02-06 2022-05-17 张锦霞 Groundwater detects with extraction element to quality of water periodic monitoring
CN114720193A (en) * 2022-04-08 2022-07-08 云南省热带作物科学研究所 Sampling device for detecting plant nutrient solution
KR102518022B1 (en) * 2021-11-08 2023-04-05 (주)지오룩스 Complex sensor system for detcting underground contamination
CN116593665A (en) * 2023-05-29 2023-08-15 山东省地质矿产勘查开发局第七地质大队（山东省第七地质矿产勘查院） Hydrogeology investigation water source sampling detection device
CN110274657B (en) * 2019-07-31 2023-11-28 山东省地质调查院(山东省自然资源厅矿产勘查技术指导中心) Mobile equipment system for real-time monitoring of groundwater level and water quantity
CN117129283A (en) * 2023-10-26 2023-11-28 长岛国家海洋公园管理中心(庙岛群岛海豹省级自然保护区管理中心) Underwater sampling device based on marine ecological restoration
CN118294216A (en) * 2024-06-03 2024-07-05 四川省第六地质大队 Water sample collection device in drilling for hydrogeology

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US10208585B2 (en) 2015-08-11 2019-02-19 Intrasen, LLC Groundwater monitoring system and method
KR101940407B1 (en) 2017-07-14 2019-01-22 주식회사 지오엑스퍼츠 groundwater multi depth monitoring system
WO2019071357A1 (en) * 2017-10-12 2019-04-18 Beth Louise Parker Depth discrete multi-level downhole system for groundwater testing and management
CN109596498A (en) * 2018-12-25 2019-04-09 核工业北京地质研究院 A kind of field lixiviation experimental method suitable for Gobi deserf area
CN110274657B (en) * 2019-07-31 2023-11-28 山东省地质调查院(山东省自然资源厅矿产勘查技术指导中心) Mobile equipment system for real-time monitoring of groundwater level and water quantity
KR102236035B1 (en) * 2021-01-12 2021-04-06 (주)인텔리지오 Packer apparatus using heavy body in the borehole and construction method thereof
KR102279806B1 (en) * 2021-01-12 2021-07-20 (주)인텔리지오 Apparatus for measuring in-situ water pressure in the borehole
CN113310743A (en) * 2021-04-24 2021-08-27 安徽民安检验检测技术有限公司 Food detects uses sampling subassembly
CN113310743B (en) * 2021-04-24 2024-05-14 鲁甸兰跃农业开发有限公司 Sampling assembly for food detection
CN113588343A (en) * 2021-08-04 2021-11-02 山东恒诚检测科技有限公司 Sewage cross section sampling device for water quality environment detection
KR102518022B1 (en) * 2021-11-08 2023-04-05 (주)지오룩스 Complex sensor system for detcting underground contamination
CN114509306A (en) * 2022-02-06 2022-05-17 张锦霞 Groundwater detects with extraction element to quality of water periodic monitoring
CN114720193A (en) * 2022-04-08 2022-07-08 云南省热带作物科学研究所 Sampling device for detecting plant nutrient solution
CN116593665B (en) * 2023-05-29 2023-10-20 山东省地质矿产勘查开发局第七地质大队（山东省第七地质矿产勘查院） Hydrogeology investigation water source sampling detection device
CN116593665A (en) * 2023-05-29 2023-08-15 山东省地质矿产勘查开发局第七地质大队（山东省第七地质矿产勘查院） Hydrogeology investigation water source sampling detection device
CN117129283A (en) * 2023-10-26 2023-11-28 长岛国家海洋公园管理中心(庙岛群岛海豹省级自然保护区管理中心) Underwater sampling device based on marine ecological restoration
CN117129283B (en) * 2023-10-26 2023-12-26 长岛国家海洋公园管理中心(庙岛群岛海豹省级自然保护区管理中心) Underwater sampling device based on marine ecological restoration
CN118294216A (en) * 2024-06-03 2024-07-05 四川省第六地质大队 Water sample collection device in drilling for hydrogeology

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