Ship ballasting water sampling device

Abstract

The invention relates to a ship ballasting water sampling device which comprises an electric propelling module, a water sample storage unit, a control center and a cable. The electric propelling module is used for propelling the water sampling device to move underwater, the control center sends instructions to the electric propelling module and a piston motor through the cable, and the water sample storage unit comprises a water sampling tank, a piston, a piston rack, the piston motor, a screw rod and a two-way valve, wherein the piston motor is fixed to the outer side wall of the water sampling tank, and the screw rod is fixed to a rotating shaft of the piston motor and can be driven to rotate by the piston motor. The piston is located in the water sampling tank, the edge of the piston isattached to the inner wall so that the piston can slide along the inner wall, sealed spaces for storing water samples are formed by the piston and five side walls of the water sampling tank, and thetwo-way valve is mounted on the side wall opposite to the piston. The ship ballasting water sampling device realizes automatic searching of aquatic creatures, remotely controlled underwater advancing,automatic water sampling, automatic cruising and other functions, and the problems that in the prior art, ballasting water collection is difficult and collection data are not accurate are solved effectively.

Description

technical field [0001] The invention relates to a water sample collection device, in particular to a ship ballast water sample collection device. Background technique [0002] Ship ballast water is water specially injected to maintain the balance of the ship. Ballast water is an important guarantee for the safe navigation of a ship, especially for a ship that does not carry an appropriate amount of cargo. An appropriate amount of ballast water can ensure that the ship's propeller has sufficient draft, minimize the hull vibration caused by the ship's wake wave, and maintain propulsion efficiency. [0003] Ship ballast water contains a large number of organisms, including plankton, microorganisms, bacteria, and even small fish as well as eggs, larvae or spores of various species. Some of these organisms cannot adapt to temperature, salinity, etc. during the voyage of the ship. Due to the change of factors, some can survive and eventually discharge into the new environment wi...

AI Technical Summary

Problems solved by technology

[0006] In view of the above deficiencies, the present invention provides a ship ballast water sample collection device, which realizes functions such as automatic search for aquatic organisms, remote control underwater advancement, automatic collection of water samples, automatic cruise, etc., and effectively solves the problem of ballast water collection in the prior art. Difficulties, inaccurate data collection and other issues

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