Port water sampler and use method thereof

Abstract

The invention discloses a port water sampler and a use method thereof. The port water sampler is totally of a cylindrical shape and comprises a cylinder body, a shield cover, an inner cover and an operation line, wherein one end of the cylinder body is opened, the other end of the cylinder is sealed, the shield cover is rotationally covered at an opening end of the cylinder body, the center part of the shield cover is provided with a through hole with a regular shape, the inner cover at least comprises a disk part which can seal and block the through hole with the regular shape, the diameter of the disk part is larger than a biggest distance between two optional points on the through hole and is less than the inner diameter of the cylinder body, the center part of the inner cover is provided with a structure for fastening the operation line, and the inner cover is arranged in the cylinder body through the operation line which is fastened on the inner cover and penetrates through the through hole with the regular shape. The port water sampler disclosed by the invention solves the problem that the port water density value cannot be accurately measured as the traditional port water sample cannot sample standard water sample, the contentions and the disputes caused by the situation that the port water density value cannot be accurately measured can be feasibly avoided, and the port water sampler disclosed by the invention has the advantages of simple structure, convenience in use and standard and efficient sample.

Description

technical field [0001] The invention relates to a port water density measuring auxiliary tool for reuse of a water gauge, in particular to a port water sampling device. Background technique [0002] The fundamental principle of water gauge weight measurement is "Archimedes' law", that is, the displacement volume of a ship multiplied by the water density of the port where it is located is equal to the total weight of the ship. After the ship load is constant, the displacement volume of the ship is basically a fixed value. Therefore, whether the port water density value used in the weighing is true or not is directly related to the accuracy of the weighing results of the draft gauge. Due to the differences in the port water density between the bow and stern and between the surface layer and the bottom layer, in order to measure a more accurate port water density value, the industry technical standards of various countries in the world stipulate that the density of the port wa...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a harbor water sampling device to solve the problem that the existing harbor water sampling device cannot take a standard water sample, thus the density value of the harbor water cannot be accurately measured

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