Marine liquid depthkeeping sampling device

Abstract

The invention discloses a marine liquid depthkeeping sampling device for sampling in a liquid tank in a ship. The sampling device comprises a pump structure, an input structure, a first check valve and a second check valve. A first cavity is formed in the pump structure; a piston making linear reciprocating motion is arranged in the first cavity movably; one end of a connecting rod is fixedly connected to the piston; and the other end of the connecting rod protrudes from the pump structure through the pump structure. A second cavity is disposed in the input structure; the input structure is coupled to one end of a hose; and the hose is in communication with the second cavity. The sampling device has the following beneficial effects: actual needs of sampling of liquid in various ships can be met; and the device can be applied to various large-and-medium-sized container ships, LNG ships, LPG ships, chemical tankers, roll-on-roll-off ships, floating storage tanks, finished product tankers, crude oil tankers, bulk carriers, passenger ships, special work ships, warships and military auxiliary ships widely.

Description

technical field [0001] The invention belongs to the field of ships, and in particular relates to a ship-used liquid depth-fixed sampling device. Background technique [0002] A large part of the cabins on the ship are liquid tanks, and the composition testing of the liquid in the liquid tanks is often encountered during the construction and shipping process. The liquid compartments of ships are all closed, and the small hatches of the compartments need to be opened to take out the liquid from the compartments. Hatch covers are generally fixed by many screws and nuts, and are kept watertight to prevent liquid from flowing out. Therefore, it takes a lot of effort to open the hatch cover, and the workload is relatively large. Secondly, when the liquid tank is full, the small The hatch cover is generally arranged near the stern or side of the tank, and the ship generally has a stern tilt and a deck beam arch. In this case, once the hatch cover is opened, a large amount of liqui...

AI Technical Summary

Problems solved by technology

Hatch covers are generally fixed by many screws and nuts, and are kept watertight to prevent liquid from flowing out. Therefore, it takes a lot of effort to open the hatch cover, and the workload is relatively large. Secondly, when the liquid tank is full, the small The hatch cover is generally arranged near the stern or side of the tank, and the ship generally has a stern tilt and a deck beam arch. In this case, once the hatch cover is opened, a large amount of liquid will gush out. This is not only not conducive to liquid sampling, but also causes liquid waste and safety hazards. At the same time, it will increase the workload of ship staff. It is necessary to replenish the liquid after sampling and clean the hull of the gushing liquid. Also be aware of the safety issues caused by the slippery passageway caused by the liquid gushing out

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