Underground water quality detection sampling device with air pressure fixed-ejection mechanism

Abstract

The invention discloses an underground water quality detection sampling device with an air pressure fixed-ejection mechanism. The device comprises a storage cavity, a fixed body, a sealing plate, a U-shaped liquid outlet pipe, a liquid storage cavity and an air pressure quantitative ejection mechanism. During sampling collection working of underground water, by means of the storage cavity, a circular push disc, the liquid storage cavity, a first air pressure cavity and the air pressure quantitative ejection mechanism, the function of quantitatively collecting sample water by pushing and discharging the sample water through air pressure can be achieved, so when equivalent sampling and comparison work of multiple sets of detection need to be conducted, the device can be well applied, equivalent sampling operation is simple and accurate, convenience is provided for workers, the working efficiency is improved, then the working accuracy of water quality detection is improved, and the detection working quality is improved.

Description

technical field [0001] The invention relates to the technical field of water quality detection, in particular to a groundwater quality detection and sampling device with an air pressure fixed outlet mechanism. Background technique [0002] Groundwater can be divided into three categories: upper stagnant water, phreatic water and artesian water; according to burial conditions, it can be divided into vadose zone water, phreatic water and confined water; according to burial medium, it can be divided into pore water, fissure water and karst water; groundwater is An important part of water resources, due to the stable water quantity and good water quality, it is one of the important water sources for agricultural irrigation, industrial mines and cities; groundwater plays a very important role in people's lives. For the detection of groundwater, monitoring and determination of harmful substances in groundwater The types and concentrations of substances, and the work of mastering g...

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Problems solved by technology

[0003] Under the existing technology, for the detection of groundwater, it is first necessary to sample it. Usually, the water of different water quality layers is collected into the storage chamber, and then it can be taken out as a sample for detection. During the sample collection process, sometimes it is necessary to Sampling of the same amount of water in the same water quality layer is used to compare multiple groups of detections, thereby improving the accuracy of detection. The efficiency is low, and it is impossible to carry out good quantitative settings. Today, it may affect the water quality experiment and reduce the quality of the detection work. Therefore, the present invention proposes a groundwater quality detection and sampling device with an air pressure setting mechanism to solve the above problems. question

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