Unmanned ship device for stratified sampling of water sample of tidal riverway

Abstract

The invention discloses an unmanned ship device for stratified sampling of a water sample of a tidal riverway. The unmanned ship device comprises a ship body, a driving module arranged at the rear endpart of the ship body, and a sampling module; the sampling module comprises a sampling winding and unwinding mechanism, a sample liquid collection container, a rigid telescopic sampling pipeline anda sampling cable pipe; the rigid telescopic sampling pipeline is arranged at the bottom of the ship body and can freely stretch out and draw back in a first preset direction; the sampling cable pipe comprises a first end and a second end which are opposite to each other, the first end extends into the rigid telescopic sampling pipeline and is used for collecting a water sample, the first end is connected with a gravity hammer, the second end is wound on the sampling winding and unwinding mechanism and is communicated with the sample liquid collection container, and the sampling winding and unwinding mechanism realizes movement of the first end in a first preset direction by winding and unwinding the sampling cable pipe. Due to the fact that the rigid telescopic sampling pipeline has good rigidity and can freely stretch out and draw back in the first preset direction, it is guaranteed that the sampling cable pipe is kept in the vertical state all the time below the ship body, and even if water flow with the large flow speed exists, a sampling water layer can be accurately positioned.

Description

technical field [0001] The invention relates to the technical field of offshore water quality sampling, in particular to an unmanned ship device for layered sampling of tidal river water samples. Background technique [0002] There are two existing offshore water quality sampling methods: one is the traditional purely manual operation, where the ship arrives at the sampling location, and then manually sinks the sampler to the corresponding specified depth for water quality sampling. The disadvantages of this method are low efficiency and the inability to accurately locate the exact water layer (when the water velocity is high, the connection line between the sampler and the position of the person will have a certain deflection angle from the vertical direction, which makes it impossible for the site to be distributed according to the The length of the cable is used to calculate the water depth of the sampled water), and there are certain personal safety risks in the sampling...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide an unmanned ship device for layered sampling of water samples in tidal rivers, which can solve the problem of inaccurate vertical positioning of water body layered sampling

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