A scientific research ship for continuous sampling of deep sea surface water

Abstract

The invention discloses a scientific research ship for continuous sampling of deep surface water. The scientific research ship comprises a hull, a device for continuous sampling of surface water belowthe water surface is arranged on a side of ship of the hull, and the device comprises a track component which is laid up and down along the side of ship and a rotating component arranged on one sideof the track component. A sampling rod capable of swinging up and down along the side of ship is arranged between the track component and the rotating component, the rotating component is rotatably connected with one end of the sampling rod, and the track component is slidably connected with the other end of the sampling rod. A sampling pipe extending into the surface water to extract the surfacewater for sampling is fixed to the sampling rod, and a buffer mechanism is arranged on the sampling pipe to prevent the sampling pipe from being damaged caused by the continuous resistance produced bysea water during voyage of the hull. According to the scientific research ship for continuous sampling of the deep surface water, it is effectively ensured that the surface water can be collected accurately, and continuous collection during the voyage of the scientific research ship can be realized.

Description

technical field [0001] The invention relates to the technical field of scientific research ships, in particular to a scientific research ship for continuously sampling deep-sea surface water. 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 often cannot follow th...

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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 the scientific research ship during the voyage 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 use the pumping equipment to pass the sampling tubes to the position. The surface seawater is collected on the ship, but there are some problems with this sampling method. First, the scientific research ship has a certain speed when sailing, and the hose will be continuously resisted by the seawater when collecting the surface seawater. Floating up, it is impossible to collect surface water; second, the traditional metal sampling tubes have continuous resistance to the seawater due to the long-term voyage of the scientific research ship, which will bend the sampling tubes and cause damage, and how to lower the metal sampling tubes to Underwater and fixed is a difficult problem to solve

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