Sampling device for underground water detection and sampling method thereof

Abstract

The invention discloses a sampling device for underground water detection. The sampling device comprises an air pump, an air valve and a sampler, wherein the output end of the air pump, the air valveand the input end of the sampler are sequentially connected; the air pump is connected with one end of the air valve through an air guide pipe, and the other end of the air valve is connected with theinput end of the sampler through a telescopic air guide pipe; the air guide pipe and the telescopic air guide pipe respectively comprise a plurality of branch air pipes which are correspondingly connected; gravity blocks for rope traction are arranged at the two sides of the sampler; a rope winder for controlling the length of a rope is arranged on the air guide pipe; the output end of the rope winder is connected with the end part of the rope; the sampler controls the descending depth through controlling the length of the rope by the rope winder and matching with the air output by the air pump; and in addition, the sampler is stretched to ascend through the rope winder. When the technical scheme is adopted, the accuracy of collected water samples is ensured, the collection efficiency isimproved, and the survey cost is reduced.

Description

technical field [0001] The invention belongs to the field of geological exploration, and more specifically, the invention relates to a sampling device for groundwater detection and a sampling method thereof. Background technique [0002] Groundwater quality sampling is one of the important contents of hydrogeological exploration. At present, most of the groundwater sampling methods are relatively simple, that is, put the sampler into the groundwater well, and the sampler sinks under the action of its own gravity to make the groundwater enter the sampler. The water quality components are different. This sampling method usually collects mixed water samples of shallow groundwater, and there are many impurities on the surface of the well water. During the lifting process of the sampling bottle, impurities are easy to enter the sampler, and the obtained water samples cannot reflect the groundwater in the well. The real situation of water quality. Therefore, stratified sampling ...

AI Technical Summary

Problems solved by technology

However, the existing groundwater layered sampling device has high cost and complex structure, and has the disadvantages of being difficult to operate or having poor stability.

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