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Soil gas stratified sampler and sampling and well washing method

A technology of soil gas and sampler, which is applied in the direction of soil drilling, instrumentation, sampling, etc., can solve the problems of unsatisfactory investigation and evaluation of polluted sites, poor repeatability, data distortion, etc., and is suitable for popularization and use, simple to operate, Versatile Effects

Pending Publication Date: 2020-07-31
青岛崂山电子仪器总厂有限公司
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AI Technical Summary

Problems solved by technology

[0003] Traditional sampling instruments cannot determine the best sampling time at this point when collecting VOCs. The data is seriously distorted and cannot truly reflect the real soil conditions. Although the existing soil gas sampler is economical in price, it is far from meeting the current investigation and evaluation of polluted sites.

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  • Soil gas stratified sampler and sampling and well washing method
  • Soil gas stratified sampler and sampling and well washing method
  • Soil gas stratified sampler and sampling and well washing method

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Embodiment Construction

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0041] refer to Figure 1 to Figure 3 , a kind of soil gas stratified sampler described in the present embodiment, comprises sampling mechanism, by the extension bar of sampling main body 1, sampling probe rod 2, sampling probe 19, several connecting mechanisms 20, twice as many as described connecting mechanism 20 21 composition for stratified sampling of soil and determination of optimal sampling time;

[0042] The well-flushing mechanism is used to inject the well-flushing medium from the sampling device 23, and carry the medium in the wellbore to the ground, thereby changing the properties of the medium in the wellbore to meet the operation requirements;

[0043...

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Abstract

The invention provides a soil gas stratified sampler and a sampling and well washing method. The sampler comprises a sampling mechanism, well washing mechanism, a filter mechanism and a medium conveying hose, wherein the sampling mechanism is composed of a sampling main body, a sampling probe rod, a sampling probe, a plurality of connecting mechanisms and extension rods of which the number is twice that of the connecting mechanisms, the sampling mechanism is used for performing stratified sampling of soil and determining the optimal sampling time, the well washing mechanism is used for injecting a well washing medium from a sampling device, a medium in a shaft is carried to the ground, so that the process that the medium property in the wellbore meets the operation requirement is changed,the filter mechanism is arranged on one side in the sampling main body and is used for filtering the medium obtained by sampling, the filtered medium is conveyed into an analyzer to be analyzed and treated, the medium conveying hose is arranged between the sampling mechanism and the filter mechanism and used for conveying the obtained medium. The sampler is advantaged in that the sampler can be used for rapidly detecting concentrations of various gases in soil in a layered manner and can be used for carrying out water removal and dust removal on the gases, so subsequent analysis on the sampledgases is facilitated.

Description

technical field [0001] The invention relates to the technical field of soil quality evaluation, in particular to a soil gas layered sampler and a method for sampling and cleaning wells. Background technique [0002] Today, soil gas analysis is mainly used for the assessment of contaminated sites and the remediation of contaminated sites. On the one hand, it is used for pre-identification and preliminary investigation to determine the focus of pollution. On the other hand, it is used for soil gas monitoring during the implementation of remediation measures, and finally after the completion of remediation measures, it can also be used for final inspection through soil gas analysis. Another focus of soil gas analysis is to control landfills. Traditional The soil gas sampling methods are very simple, some just put a hose into the sampling well. [0003] Traditional sampling instruments cannot determine the best sampling time at this point when collecting VOCs. The data is seri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/22G01N1/24G01N1/34G01N33/00E21B37/00
CPCE21B37/00G01N1/2205G01N1/2294G01N1/24G01N1/34G01N33/0011G01N33/0047
Inventor 曲国利刘富栋张伟
Owner 青岛崂山电子仪器总厂有限公司
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