Sampling system for water filtrated by unattended shipborne multichannel film

Abstract

The invention provides a sampling system of unattended shipborne multichannel film filtering water samples, relates to a sampling device of water samples and provides a sampling system of unattended shipborne multichannel film filtering water samples capable of automatically taking water, washing, filtering and water sampling. The sampling system is provided with a constant flow pump, a multi-channel switch valve, a shunt valve, a filtering device, a three-way valve, a vacuum bottle, a washing bottle, a sampling bottle, a multi-channel negative pressure control valve, a vacuum system, a control system and a computer. An injection port of the multi-channel switch valve is connected with the constant flow pump; the shunt valve is connected with a discharge port of the multi-channel switch valve; the filtering device is connected with the discharge port of the multi-channel switch valve; the three-way valve is connected with the filtering device, the washing bottle and a sampling bottle;the vacuum bottle is connected with the vacuum system; air inlets of the multi-channel negative pressure control valve are connected with the vacuum bottle, wherein one of the air inlets is connectedwith the atmosphere and an air outlet is connected with the vacuum system; and the control system is connected with the computer. The sampling system has the advantages of simultaneous implementationof sampling and filtering of water samples, short filtering period, high degree of automation and stable performance and the like.

Description

technical field [0001] The invention relates to a water sample collection device, in particular to an unattended ship-mounted multi-channel membrane filtration water sample sampling system for marine environment monitoring. Background technique [0002] Membrane filtration technology is an important branch in the field of modern separation technology. Its main function is to remove trapped colloids, bacteria and solid particulate matter from fluids to achieve purification, separation and concentration. Compared with conventional filtration, membrane filtration has many advantages such as high filtration precision, less adsorption filtrate, fast filtration speed, and low energy consumption. It has been widely used in environmental protection, chemical industry, food, medicine and other fields. [0003] Survey ships that conduct surveys of water bodies such as oceans or lakes need to collect water samples on-site for detection and analysis to monitor the distribution and chang...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a solution for the separation of water sample collection and membrane filtration process in the existing water sample sampling device, as well as the disadvantages of cumbersome manual operation, low degree of automation, long filtration cycle, difficult transfer of filtered water samples and easy contamination. An unattended ship-mounted multi-channel membrane filtration water sample sampling system that can automatically perform water intake, cleaning, filtration, and water sample collection

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