Industrial in-parallel water inlet two-stage disc filter

Abstract

The invention relates to an industrial in-parallel water inlet two-stage disc filter, and belongs to the field of water treatment equipment. The filer comprises an inner cylinder, the interior of theinner cylinder is provided with a filter element, the filter element comprises a primary filter element and a secondary filter element arranged from the top to the bottom, the secondary filter elementcomprises a lower flow-guiding disk and a flow guiding disk, a division flow-guiding disk is arranged between the primary filter element and the secondary filter element, and the division flow-guiding disk comprises an upper division flow-guiding disk and a lower division flow-guiding disk; and the lower end of the inner cylinder is provided with a sewage outlet, a purified water outlet and a rawwater inlet. The filter provided by the invention has the following beneficial effects: raw water is filtered twice, the purity is high, the effluent water quality is good, and electrical conductivity of the purified water subjected to two-stage filtration is less than 2 [mu]s / cm; a nano ultrafiltration membrane is adopted to ensure that mineral substances in water are retained while a purified water standard is achieved, and harmful substances can be filtered to achieve the purposes of safety and health; and the product realizes two-stage filtration of one filter element, and has a small occupied space.

Description

technical field [0001] The invention relates to an industrial parallel water inlet two-stage disc filter, which belongs to the field of water treatment equipment. Background technique [0002] Usually the filter element is filtered once (reverse osmosis or nanofiltration membrane or membrane), the quality of the purified water after filtration is not high, there are still impurities, and affected by the quality of the raw water, the quality of the purified water after filtration is often unstable. The conductivity of water is less than 450us / cn, and the conductivity of pure water filtered by a first-stage filter element is less than 10us / cm, which cannot meet the requirements for purified water, and the multi-stage filtration realized by two or more filter elements takes up more space. Big and expensive. Contents of the invention [0003] The present invention aims at the deficiencies in the above-mentioned prior art, and provides an industrial parallel water inlet two-st...

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Problems solved by technology

[0002] Usually the filter element is filtered once (reverse osmosis or nanofiltration membrane or membrane), the quality of the purified water after filtration is not high, there are still impurities, and affected by the quality of the raw water, the quality of the purified water after filtration is often unstable. The conductivity of water is less than 450us / cn, and the conductivity of pure water filtered by a first-stage filter element is less than 10us / cm, which cannot meet the requirements for purified water, and the multi-stage filtration realized by two or more filter elements takes up more space. large and expensive

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