Multi-layer sampling equipment for water quality monitoring

Abstract

The invention relates to the technical field of water quality monitoring, and discloses a multi-layer sampling device for water quality monitoring, the multi-layer sampling device comprises a sampling assembly and a fixing seat, the sampling assembly comprises a top plate, a plurality of layering plates are arranged at the bottom of the top plate, the top plate and the layering plates are connected through a first elastic layer, and every two adjacent layering plates are connected through a second elastic layer; deformation assemblies are arranged between the top plate and the layering plates and between every two adjacent layering plates; a round hole is formed in the layering plate, and an annular elastic layer is arranged in the round hole; after sampling is completed, the fourth electric telescopic rod corresponding to each layer above the bottom layer is controlled again to extend until the bottom surface of the sealing block corresponding to each layer is parallel to the bottom surface of the sealing block at the bottommost layer, so that the solution in each chamber is not in contact with the inner walls of other chambers when the sampling solution is discharged, and the problem of mutual pollution of layered sampling solutions is avoided; the accuracy of water sample detection is improved, and fidelity is realized.

Description

technical field [0001] The invention belongs to the technical field of water quality monitoring, in particular to a multilayer sampling device for water quality monitoring. Background technique [0002] Water quality monitoring is to monitor and measure the types of pollutants in the water body, the concentration of various pollutants and the trend of change. Generally, when sampling, the whole is divided into non-intersecting layers, and then according to a certain proportion, the water is collected independently from each layer. Take a certain number of individuals, combine the individuals taken from each layer as samples, and drive the sampling components to move to the designated positions, and then sample different positions. The stability of the sampling components in the existing multi-layer sampling equipment is average. , which is not convenient for practical use. [0003] The existing technology adopts fixed volume or quantitative sampling, but sometimes the gas o...

AI Technical Summary

Problems solved by technology

[0002] Water quality monitoring is to monitor and measure the types of pollutants in the water body, the concentration of various pollutants and the trend of change. Generally, when sampling, the whole is divided into non-intersecting layers, and then according to a certain proportion, the water is collected independently from each layer. Take a certain number of individuals, combine the individuals taken from each layer as samples, and drive the sampling components to move to the designated positions, and then sample different positions. The stability of the sampling components in the existing multi-layer sampling equipment is average. , not convenient for practical use

[0003] The existing technology adopts fixed volume or quantitative sampling, but sometimes the gas or substance with important research value is ejected from the change of the bottom material, and the existing gas with important research value cannot be instantaneously produced by the change of the bottom material by using fixed volume or quantitative sampling. Or the substance collects more sample liquid according to the demand. At the same time, the existing layered sampler uses the same delivery pipeline to store the external solution to the corresponding dissolution chambers to achieve layered sampling. However, due to the different depths of the water sample layers The composition of the water samples is different, and the same delivery pipeline has been polluted by the deep layer solution collected first, resulting in deviations in the later detection and analysis of the water samples; at the same time, the through holes of the existing sampling equipment cannot change the caliber according to the type of water sample collected to adapt to different water samples. Sampling of waters

Images