Liquid sampler with adjustable sampling depth

Abstract

The invention discloses a liquid sampler with adjustable sampling depth, and the liquid sampler comprises a booster (1), wherein the tail of the booster (1) is connected to the upper nozzle of a firstthree-way stopcock (2), the lower nozzle of the first three-way stopcock (2) is connected to the upper tube connector of a sample liquid storage tank (3), the lower tube connector of the sample liquid storage tank (3) is connected to the upper nozzle of a second three-way stopcock (4), the upper nozzle of the three-way stopcock (4) is connected to the upper port of a liquid collection pipe (5), the outer wall of the liquid collection pipe (5) is sleeved with a depth positioning buoy (6), and the lower port of the liquid collection pipe (5) is equipped with a round sphere air plug (7). The liquid sampler provided by the invention has the advantages of realizing that the bottom sediments are not stirred during sampling, and having adjustable sampling depth, accurate sampling, simple, noveland unique structure, convenient manufacture, high performance cost ratio, convenient carrying and placing, simple operation and good use effect.

Description

technical field [0001] The invention belongs to the technical field of water pollution treatment and detection equipment, and in particular relates to a liquid sampler with adjustable sampling depth. Background technique [0002] In recent years, water resources and water pollution have become one of the key issues that have been highly studied by scholars and paid close attention to by the masses. Among them, water sample collection is a crucial and indispensable first link in the process of water quality testing and research. Only by accurately taking representative water samples corresponding to the requirements can the follow-up research link be carried out better. [0003] "HJ / T 91-2002 Surface Water and Sewage Monitoring Technical Specifications" also stipulates a series of sampling requirements, indicating that the depth of the sampling point is determined according to the water depth, and specifically requires that the sediment on the bottom of the water should not b...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the operation of the liquid sampler is more complicated, and it requires higher technical and knowledge reserve ability of the staff, and it is easy to cause the error of the sampling depth due to the error of the theoretical pressure and the actual pressure; and the general liquid sampler only It can satisfy the sampling of shallower depth; or the sampler is long and inconvenient to carry; resulting in certain limitations

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