Layered sampling device for water quality monitoring

Abstract

The invention relates to a layered sampling device for water quality monitoring, which effectively solves the problem that multiple operations are required for layered sampling of water bodies, and the water samples are easily mixed; the technical solution includes an outer shell and an inner shell, and the inner shell is installed in the outer shell and It can slide up and down in the outer shell. A first pressure spring is installed between the inner shell and the bottom of the outer shell. There is a first water inlet on the left side wall of the outer shell. The clapboard is divided into multiple water storage chambers, and a second water inlet is opened on the top of the left wall of each water storage chamber, and a spring block that can be ejected inward is installed on the right side wall of the outer shell, and each storage chamber There is a vertical chute on the right side wall of the water chamber, the depth of the multiple chute decreases from top to bottom according to the arithmetic sequence, and the inner end of the bullet can extend into the chute; the present invention greatly reduces the The number of sampling operations does not need to be controlled by a solenoid valve, and it can be sealed in time after sampling, which solves the problem of mixing water samples of different depths.

Description

technical field [0001] The invention relates to the field of water quality monitoring, in particular to a layered sampling device for water quality monitoring. Background technique [0002] Water quality sampling is an important part of water quality monitoring, and it is required to accurately extract water samples at specific time and spatial locations; when sampling deep water, it is often necessary to sample multiple depths according to the depth gradient. Currently, when performing stratified sampling, Generally, a water intake container is lowered to a designated depth, and the water intake container is provided with a cover plate that can be opened and closed in one direction, which is opened during the lowering process and closed during the lifting process, so as to realize the sampling work. There are many disadvantages in this method: First, every Only one depth sample can be taken at a time, and the container needs to be lowered multiple times for sampling when la...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a water quality monitoring layered sampling device, which effectively solves the problem that the water body layered sampling needs multiple operations and the water samples are easily mixed

[0005] The invention greatly reduces the number of sampling operations, does not need electromagnetic valve control, can seal in time after sampling, and solves the problem of mixing water samples of different depths

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