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Underground water sampling pipe and underground water sampling device

A technology for sampling devices and sampling tubes, applied in sampling devices, measuring devices, sampling, etc., can solve the problems of inability to collect multi-level groundwater at the same time, easy gas ingress, etc., to increase the length, improve the sealing performance, and improve the collection efficiency Effect

Active Publication Date: 2021-12-07
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that in the prior art, the groundwater sampling tube cannot simultaneously collect multi-level groundwater, and the groundwater sampling device used in conjunction with the sampling tube, when the sampling tube is pumped, the gas in the air is easy to enter the sampling tube and other issues, and proposed a groundwater sampling pipe and its groundwater sampling device

Method used

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  • Underground water sampling pipe and underground water sampling device
  • Underground water sampling pipe and underground water sampling device
  • Underground water sampling pipe and underground water sampling device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] refer to Figure 1-2 , a groundwater sampling pipe, comprising a sampling pipe body 1 and an air extraction pipe 103, the sampling pipe body 1 is provided with a water storage area 101 and an exhaust area 102, and the water storage area 101 and the exhaust area 102 pass through a second water baffle 201 Separated from each other; the water storage area 101 is provided with multi-layer first water baffles 2, through which the first water baffles 2 are separated into mutually independent water storage chambers; it also includes: a through hole 3, located on the side wall of the sampling tube body 1 , the through hole 3 is provided with a water seepage assembly that collects groundwater into each water storage chamber; the second water baffle 201 is provided with an exhaust nozzle 202, and the exhaust nozzle 202 is used to communicate with the water storage chamber and the exhaust area 102; wherein , the exhaust pipe 103 is fixedly connected to the sampling pipe body 1 and...

Embodiment 2

[0036] refer to Figure 1-2 , on the basis of Example 1, further,

[0037] The water seepage assembly includes a slide plate 302 and a water seepage plate 303. The sampling pipe body 1 is provided with a chute 301. The slide plate 302 is slidably connected in the chute 301. The water seepage plate 303 is located on the slide plate 302. When the slide plate 302 is inserted into the chute 301, water seepage The plate 303 is right inside the through hole 3 .

[0038] The slide plate 302 is inserted in the chute 301, and after filtering through the seepage plate 303, groundwater enters the water storage chamber.

[0039] After the collection is completed, when it is necessary to take out the groundwater in each water storage chamber, the slide plate 302 can be pulled out one by one through a needle tube, or a slide plate 302 without a water seepage plate 303 can be inserted into the chute 301, and then the slide plate 302 is pulled upwards , from bottom to top, lead through hole 3...

Embodiment 3

[0041] refer to Figure 1-2 , on the basis of Example 2, further,

[0042] The bottom of the sampling tube body 1 is provided with a connecting thread 4 , the top of the sampling tube body 1 is provided with a threaded sleeve 401 corresponding to the connecting thread 4 , and the bottom of the exhaust area 102 is provided with a suction nozzle 203 .

[0043] According to the actual collection needs, the number of sampling tube bodies 1 can be flexibly increased through the cooperation of the connecting thread 4 and the threaded sleeve 401. Through the suction nozzle 203, each of the increased sampling tube bodies 1 can be connected to each other, and through the suction tube 103, making each added sampling tube body 1 have a negative pressure effect.

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Abstract

The invention discloses an underground water sampling pipe and an underground water sampling device, and belongs to the technical field of water quality sampling. The underground water sampling pipe comprises a sampling pipe body and an exhaust pipe, wherein the sampling pipe body is internally provided with a water storage area and an exhaust area, and the water storage area and the exhaust area are separated by a second water stop plate. According to the underground water sampling device, the sampling pipe body is inserted into a sampling hole. The underground water sampling device further comprises a bottom plate located above the sampling hole, and a box body connected to the bottom plate, wherein an air exhaust mechanism is arranged in the box body, and the air exhaust mechanism is communicated with an air exhaust pipe. According to the underground water sampling device, negative pressure is formed in the sampling pipe body through the air exhaust mechanism, the sampling efficiency is improved, meanwhile, the pressing rod is pushed to press the pressing plate downwards by the exhausted air, the sealing performance is improved, external air is prevented from entering the sampling pipe through a gap between the sampling pipe and the sampling hole, and the sampling efficiency of underground water is improved.

Description

technical field [0001] The invention relates to the technical field of water quality sampling, in particular to a groundwater sampling pipe and a groundwater sampling device. Background technique [0002] Shallow groundwater is formed by atmospheric precipitation and surface runoff. The quality and quantity of water are affected by precipitation and runoff. The burial is generally between a few meters and more than ten meters. It is greatly affected by the soil environment and soil hygiene conditions. It is the research site for non-point source pollution. Important reference. [0003] Due to the rapid renewal of shallow groundwater and large changes in water quality, intensive sampling is often required to study shallow groundwater. However, the existing groundwater sampling tubes on the market can only collect groundwater at a single level, and cannot flexibly increase the length according to the actual situation. Simultaneous collection The multi-level groundwater and th...

Claims

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Application Information

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IPC IPC(8): G01N1/16G01N1/14
CPCG01N1/16G01N1/14G01N2001/1418
Inventor 杨晨晨廖思远刘志超张雷秦延文
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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