River water filtering device for ship and self-flushing method thereof

Abstract

The invention provides a river water filtering device for a ship and a self-flushing method thereof. The river water filtering device for the ship comprises a first filter, a second filter, a buffer tank, a filtrate pond and a gas source. A water return port of the first filter is connected to a water inlet of the second filter, a water outlet of the first filter communicates with a water outlet of the second filter, a water outlet of the second filter separately communicates with the buffer tank and the filtrate pond, a normally opened electromagnetic valve is also arranged between the filtrate pond and the second filter, and a drain pipe is arranged on the top of the buffer tank. According to the river water filtering device for the ship, provided by the invention, the buffer tank, a normally closed electromagnetic valve and the normally opened electromagnetic valve form a backflushing storage space. The first filter and the second filter can be flushed by adjusting the opening and closing states of the normally closed electromagnetic valve, the normally opened electromagnetic valve and the gas source.

Description

technical field [0001] The invention relates to the technical field of marine filters, in particular to a marine river water filtering device and a self-flushing method thereof. Background technique [0002] At present, the water pollution of rivers and lakes is becoming more and more serious. It is especially important to equip small and medium-sized ships with drinking water filters. Although the existing river water filters have a high degree of automation, they are large in size, heavy in weight, consume a lot of power, and are expensive, so they are not applicable. It is used in small boats; on the other hand, although the simple river water filter does not consume electricity, it is easy to block, difficult to clean, low in efficiency, and the quality of the effluent water cannot be guaranteed. [0003] Aiming at the above problems, people have invented a river water filter. The process of this river water filter is: raw water→filter→adding flocculant (chemical substan...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a small-sized, not easy to block and easy-to-operate marine river water filter device and its self-rinsing method to solve the existing technology of the existing marine river water filter device with complicated operation, large volume, easy blockage and the need for a large amount of fresh water flushing question

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