Water purifier or water purifying plant with circulating filtration function of filter elements and manufacturing method

Abstract

The invention relates to a water purifier or water purifying plant with a circulating filtration function of filter elements; the water purifier or water purifying plant comprises a raw water inlet (1), an electromagnetic valve or an intelligent valve A (2), a zero-stage or one-stage or above than one-stage preposed filter element (3), a one-stage or above than one-stage filter element (4), a pump, an RO (Reverse Osmosis) membrane or a nanofiltration membrane or an ultrafiltration membrane or a microfiltration filter element, a concentrated water pipeline, a connecting pipeline 6B, a tee joint 6B1, zero or one or more than one pressure water storage barrels, zero or one or more than one postposed filter elements with air pressure or without air pressure or pressure water storage cavities or barrels or connecting pipes, a purified water outlet or a next-stage filter element interface, an electromagnetic valve or an intelligent valve and the like; the raw water inlet is communicated with the electromagnetic valve or the intelligent valve A, a connecting pipeline 2A, the zero-stage or one-stage or higher than one-stage preposed filter element, a connecting pipeline 2B, the one-stage or above than one-stage filter element, a connecting pipeline 2C, a tee joint 5A, the pump, and the RO membrane or the nanofiltration membrane or the ultrafiltration membrane or the microfiltration filter element; and the tee joint 5A is communicated with the pump, the RO membrane or the nanofiltration membrane or the ultrafiltration membrane or the microfiltration filter element, a connecting pipeline 2E, the zero or one or more than one postposed filter elements with air pressure or without air pressure or the pressure water storage cavities or the barrels or the connecting pipes, a connecting pipeline 2D and the tee joint 5A in a circulation manner.

Description

Technical field: [0001] ---The present invention relates to water quality and liquid purification treatment technology, specifically a water purifier or water purification equipment and a preparation method for circulating filtration with a filter element. technical background: [0002] ---At present, each filter element of microfiltration, ultrafiltration, nanofiltration or RO membrane water purifiers at home and abroad can only achieve one filtration and then reach the water purification outlet, especially for pure water machines because the pure water produced by the pure water machine lacks minerals and trace elements, because domestic studies have pointed out that drinking pure water for a long time may have the risk of cardiovascular and cerebrovascular and arteriosclerosis, in general, because pure water lacks natural minerals and trace elements, and humans have been All drinking water contains natural minerals and trace elements. Therefore, pure water is not the best...

AI Technical Summary

Problems solved by technology

There are two major defects in the prior art: one is the limitation of the number of filter elements, and there is also the defect that the drinking water faucet can be purified after only one filtration, resulting in the taste of purified water, especially purified water, w

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