Electric water sampling device

Abstract

A water collecting device driven by motor consists of solenoid valve connected and controlled by sealed cable at top, controlled water collecting unit being connected by bolts at bottom of solenoid valve and sampling bottle under water collecting unit. It features that said water collecting device is a water collecting sealed device of normally closed structure and sampling bottle is opened by mode of two - stage pressure reduction.

Description

technical field [0001] The invention relates to an electric water sampling device for collecting water samples. Background technique [0002] Water sample collection is an important basic work in the field of scientific research and engineering design in the ocean and water conservancy industry, especially the water sample data on the surface of the sediment, which is extremely important for the scientific research of the material exchange process between water and sediment of. At present, relevant departments at home and abroad have developed a variety of artificial water collectors and electric water collectors, but they are all normally open water collectors, which mainly have the following technical defects: [0003] 1. For the normally open artificial water collector, the hammering method is often used to close the water collector. This form is not only limited by sea conditions, but also in the case of high flow velocity, due to the relatively large inclination angle...

AI Technical Summary

Problems solved by technology

This form of water collection is often unstable, and often misoperation occurs due to equipment vibration, violent swing, etc., so the success rate of its action is relatively low, and the accuracy of sampling is difficult to guarantee;

[0005] If the above two are used for a long time of water collection (such as a set of devices working underwater for more than 15 days), in the season when the biological reproduction is relatively fast, the release mechanism, water collection bottle and sealing parts are often due to the appearance of A large number of organisms adhere to the normal sampling action and sample sealing, and the water sample is inevitably polluted

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