A kind of water purification equipment with multi-layer nanofiltration membrane

Abstract

The invention discloses a water purification device with a multi-layer nano-filtration membrane, which comprises a water purification tank, a No. 1 filter mechanism, a No. 2 filter mechanism and a water inlet mechanism. One end of the upper surface is provided with a water inlet mechanism. The water inlet mechanism consists of a water inlet pipe, a connecting plate, a T-shaped connecting ring and a filter screen. One end of the upper surface of the clean water tank is provided with a through hole, and a T-shaped connecting ring is inserted inside the through hole. The bottom surface of the T-shaped connecting ring is fixedly connected with a filter screen, and a connecting plate is inserted inside the T-shaped connecting ring. The present invention can filter the sewage more completely by setting a plurality of filter elements and a filter cartridge with multi-layer nano-filtration membranes. At the same time, a T Type driving arm, using back and forth pumping pressure to make the treated water squeezed out from the nanofiltration membrane, so as to prevent the treated water from flowing too slowly in the No. 2 filter cartridge and affect the filtration progress. The drive is replaced to avoid excessive accumulation of garbage and affect the water flow rate, and the overall efficiency of sewage treatment can be accelerated.

Description

technical field [0001] The invention relates to a water purification device, in particular to a water purification device with a multi-layer nano-filtration membrane, belonging to the technical field of water purification devices. Background technique [0002] Nanofiltration membranes are divided into granular membranes and dense membranes. Granular membranes are films in which nanoparticles stick together with extremely small gaps in the middle. For sewage purification, traditional purification equipment is slowed down by simple filter elements and nanofiltration membranes. Slow drop filtration achieves purification. Due to the high density of the nanofiltration membrane, it is difficult for the treated water to permeate through the nanofiltration membrane quickly. If it is not forced to squeeze, it is easy to cause blockage in the purification equipment of the treated water and affect the filtration rate. At the same time, the filter element and After the filter is filtere...

AI Technical Summary

Problems solved by technology

[0002] Nanofiltration membranes are divided into granular membranes and dense membranes. Granular membranes are films in which nanoparticles stick together with extremely small gaps in the middle. For sewage purification, traditional purification equipment is slowed down by simple filter elements and nanofiltration membranes. Slow drop filtration achieves purification. Due to the high density of the nanofiltration membrane, it is difficult for the treated water to permeate through the nanofiltration membrane quickly. If it is not forced to squeeze, it is easy to cause blockage in the purification equipment of the treated water and affect the filtration rate. At the same time, the filter element and After the filter is filtered, a large amount of garbage will remain. If it is not cleaned in time, it will also affect the filtration rate of the treated water, and the purification box is prone to leakage

[0003] In addition, although the pressurization of filtered water is achieved through pressure twitching in the prior art, such as CN102070257A and CN102432129A, they are all provided with a single piston mechanism, and the single function can only realize pressurization, and cannot be well integrated into the entire filter. mechanism, thus making the overall volume of the filter equipment bloated

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