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Underground water high-fidelity sampling system and sampling method

A sampling system and groundwater technology, applied in the field of sampling systems, can solve the problems of cross-contamination of samples, easy distortion of water samples, etc., to achieve the effects of improving fidelity, reducing the probability of spillage, and avoiding instantaneous changes

Active Publication Date: 2020-03-24
BEIJING RES INST OF CHEM ENG & METALLURGY
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] One of the purposes of the present invention is to provide a high-fidelity groundwater sampling system to solve the problem that water samples collected in deep water wells are easily distorted and cross-contaminated between samples using existing sampling techniques

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  • Underground water high-fidelity sampling system and sampling method

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Embodiment Construction

[0037] Such as figure 1 , figure 2 As shown, the groundwater high-fidelity sampling system of the present invention includes a deep-water well sampling device 5 near the liquid surface, a mass stabilizer 3 , a laminar flow sampler 2 and a sampling bottle 1 .

[0038] The deep water well sampling device 5 facing the liquid surface includes a submersible pump 52 , a drainage body 54 , a drainage cover 53 , a water inlet pipe 58 and a flower net pipe pendant 59 and the like.

[0039] The submersible pump 52 is a vertical cylindrical pump body, and the water outlet 51 on the top of the pump body is connected with a water outlet pipe 57 for transporting the collected water to the ground. The length of the tick marks.

[0040] The upper part of the drainage body 54 is a cylindrical pipe body, and the lower part is a cone structure with the tip facing downwards. It is installed on the lower end of the submersible pump 52. The centerlines of the upper cylindrical body of 54 and th...

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Abstract

The invention provides an underground water high-fidelity sampling system and a sampling method. According to the underground water high-fidelity sampling system, a near-liquid-level deep well sampling device used for pumping underground water is arranged below the liquid level in a well pipe, and a water outlet pipe installed at the top of the near-liquid-level deep well sampling device is sequentially communicated with a quality stabilizer, a laminar flow sampler and a sampling bottle which are arranged on the ground. Based on the underground water high-fidelity sampling system, in the sampling process, a water sample enters from the screen pipe pendant at the lower end of the near-liquid-level deep well sampling device and finally flows into the sampling bottle, and the water pumping flow rate is controlled by adjusting the flow regulator, so that the sampled water flow is stable, micro-disturbance water pumping is realized, the probability of overflow and loss of volatile substances in water can be effectively reduced, and the fidelity of the water sample is improved. The near-liquid-level deep well sampling device placed in water is simple in structure and low in energy consumption, and can solve the problems that conventional sampling equipment is high in energy consumption, the depth of sampling points is limited and the like.

Description

technical field [0001] The invention relates to a sampling system for sampling groundwater, in particular to a high-fidelity groundwater sampling system and a sampling method. Background technique [0002] In-situ leaching mining is a relatively advanced and environment-friendly mining technology at present. Its basic principle is to arrange technical drilling holes according to a certain mesh within the range of ore-bearing layers that can be mined by in-situ leaching, and inject the leaching solution from the injection holes into the ore-bearing layer. The leaching solution mainly reacts with the target minerals in the ore-bearing layer, dissolves to form a leaching solution, and the leaching solution is brought to the surface through the pumping hole. After the target minerals are extracted in the surface factory, the leaching agent is added to the discharged tail liquid to form a leaching solution. The process of re-injecting the liquid through the injection hole into th...

Claims

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Application Information

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IPC IPC(8): G01N1/14
CPCG01N1/14G01N2001/1031
Inventor 温吉利刘向国
Owner BEIJING RES INST OF CHEM ENG & METALLURGY
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