A scientific research ship that realizes continuous sampling of deep-sea surface water during sailing

Abstract

The invention discloses a scientific investigation vessel to implement continuous sampling for deep-sea superficial water in underway process, comprising a vessel body. The side of the vessel body isprovided with a device to perform continuous sampling on superficial water under the water surface; the device comprises a support that may elevate along the side; a sampling tube for sucking and sampling superficial water is fixed to the support, and a hydraulic cylinder to drive the support to elevate so as to extend the sampling tube to the superficial water position is also fixed to the support; a buffer mechanism to avoid damage to the sampling tube due to continuous resistance generated by sea water when the vessel body is in underway process is arranged on the support. A depth sensor, acontroller and the hydraulic cylinder help effectively ensure accurate collection of superficial water and provide continuous sampling during sailing of the scientific investigation vessel; the buffer mechanism can effectively avoid damage to the sampling tube due to continuous flow resistance acting axially and radially on the sampling tube, and can relieve the resistance so that the device haslonger service life.

Description

technical field [0001] The invention relates to the technical field of scientific research ships, in particular to a scientific research ship capable of continuously sampling deep-sea surface water during sailing. Background technique [0002] Microplastics, which are plastic particles with a diameter of less than 5 mm, are a major carrier of pollution. Microplastics include polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyurethane, polyamide, polyethylene terephthalate, etc. Microplastics are small in size, which means higher specific surface area (specific surface area refers to the surface area per unit mass of porous solid matter). The larger the specific surface area, the stronger the ability to adsorb pollutants. First of all, there are already a large number of persistent organic pollutants such as PCBs and bisphenol A in the environment (these organic pollutants are often hydrophobic, which means that they are not easily dissolved in water, so they ...

AI Technical Summary

Problems solved by technology

[0006] The box type is generally used in static sampling. In dynamic sampling, the position of the box body cannot be artificially fixed due to the resistance of the water, and it is easy to rub against the hull and cause damage due to impact. The method of trawling is easy to entangle with underwater objects, such as breeding area or some floating objects, it is also impossible to take stable samples for a long time

At present, the continuous sampling method of scientific research ships is generally to install one or more sampling tubes on the side of the ship, extend the sampling tubes into the seawater 20-30cm below the water surface, and collect the surface seawater at this position through the sampling tubes through the pumping equipment. to the ship, but there are some problems with this sampling method. First, the scientific research ship has a certain speed when sailing, and the sampling tube will be subjected to continuous resistance from seawater when collecting surface seawater, which will cause the upward buoyancy of the sampling tube, which will not only affect The position of the sampling tube is underwater, and it is difficult to fix the sampling tube on the ship's side; secondly, even if the traditional sampling tube is firmly fixed on the ship's side, due to the long-term continuous voyage of the scientific research ship, the seawater produces continuous resistance on the sampling tube. It will cause the sampling tube to bend and cause damage; thirdly, how to stably fix the sampling tube on the side of the ship is still a problem that needs to be solved

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