Water filter and water filtering device

Abstract

The invention discloses a water filterer capable of improving water treatment efficiency and reducing use cost, and a water filtering device formed by connecting the water filters in a series. The water filter comprises a water pipe, wherein a purifying pipe is arranged in a top cover of the water pipe in a penetrating way; a water inlet is arranged at the lower part of the water pipe; a water outlet is arranged at the upper part of the water pipe; a purified water outlet is arranged at the upper part of the purifying pipe; the pipe wall of the purifying pipe is composed of osmotic membranes; an ultrasonic vibration rod is arranged on the top cover of the purifying pipe in a penetrating way, and an ultrasonic transducer is arranged at the top part of the ultrasonic vibration rod. According to the invention, the pipe wall of the purifying pipe is cleaned by adopting ultrasonic vibration, backflushing by using filtered purified water is avoided and a backflushing procedure is saved, so that the entire filtering process is continuous and the filtering efficiency is greatly improved. The filtering efficiency is about four times of the original efficiency generally. Besides, the pipe wall of the purifying pipe only adopts one-way permeating osmotic membranes so as to reduce production cost of the purifying pipe.

Description

technical field [0001] The invention relates to a device for filtering seawater and other solutions containing substances with a higher density than water by physical methods. Background technique [0002] The current water filtration device is usually formed by connecting several water filters in series. Each water filter has a structure including: a water pipe, a water purification pipe is pierced in the top cover of the water pipe, and a water inlet is provided at the bottom of the water pipe. The upper part of the water pipe is provided with a water outlet, the upper part of the water purification pipe is provided with a water purification outlet, and the pipe wall of the water purification pipe is formed by a reverse osmosis membrane. When in use, seawater continuously flows in from the water inlet at the lower part of the water pipe and flows out from the water outlet at the upper part of the water pipe. Outflow, and constantly have salt attached to the outer wall of ...

AI Technical Summary

Problems solved by technology

In this way, the whole water filtering device is in intermittent working mode, and at the same time, a large amount of collected purified water will be used for backwashing, and the water treatment efficiency of the whole water filtering device is relatively low.

In addition, the frequency of replacement of the reverse osmosis membrane is high, which increases the cost of use

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