Ship ballast water sampling device

Abstract

The invention provides a ship ballast water sampling device. The device comprises a base, a cover plate, a water taking plate, a water wheel and a rotating shaft, a water inlet and a water outlet are formed in the two ends of the base respectively, a rotating groove is formed in the cover plate, and the water taking plate is located in the rotating groove and can rotate in the rotating groove; a sliding groove is formed in the base, a water taking opening communicated with the sliding groove is formed in the side wall of the base, a sliding block and an elastic piece are arranged in the sliding groove, one end of the elastic piece is connected with the sliding block, the other end of the elastic piece is connected with the base, a magnetic block is arranged on the water wheel, and the magnetic block can drive the sliding block to move in the sliding groove through magnetism; a water storage tank is arranged on the cover plate, the water storage tank corresponds to the sliding groove and communicates with the sliding groove, an inlet check valve is arranged in the water storage tank and is arranged at the communicating position of the water storage tank and the sliding groove, and an outlet check valve is arranged at the water taking opening; a water taking groove is formed in the water taking plate, and a through hole is formed in the side wall of the base; and when the water taking plate rotates, the water taking groove can communicate with the through hole and the water storage groove at intervals.

Description

technical field [0001] The invention relates to the technical field of ballast water treatment, in particular to a ship ballast water sampling device. Background technique [0002] The electrolytic treatment of ship ballast water is a method of using dilute brine or seawater as raw material, generating sodium hypochlorite solution after direct current electrolysis, and using sodium hypochlorite solution to kill harmful aquatic organisms and pathogens in ballast water. In the process of ship ballast water treatment, in order to ensure that the concentration of residual chlorine in the treated seawater is within the acceptable range, it is necessary to use a residual chlorine analyzer to sample and test the seawater in the main pipeline. At present, the sampling device of the residual chlorine analyzer generally uses a pneumatic pump for sampling, but due to the excessive pressure of the main pipeline, the diaphragm of the pneumatic sampling pump is damaged and other failures ...

AI Technical Summary

Problems solved by technology

At present, the sampling device of the residual chlorine analyzer generally uses a pneumatic pump for sampling, but due to the excessive pressure of the main pipeline, the diaphragm of the pneumatic sampling pump is damaged and other failures occur from time to time. Currently, there are many restrictions on the use of pneumatic pumps for seawater sampling. The layout requirements are high, and it needs to be driven by air source

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