Water purification ultrafiltration membrane assembly

Abstract

The invention discloses a water purification ultrafiltration membrane component which comprises a fixing ring, a plurality of external pressure type hollow fibers which are not communicated with one another are clamped by the fixing ring, the upper ends of the external pressure type hollow fibers are clamped and tightly fixed in the fixing ring, and the lower end of a single external pressure typehollow fiber freely floats. A water outlet is formed in the top of the single external pressure type hollow fiber, the bottom of the single external pressure type hollow fiber is sealed, water permeable micropores are formed in the side wall of the single external pressure type hollow fiber in a penetrating mode, the water purification principle is the same as that in the prior art, but due to the fact that each external pressure type hollow fiber is in a free state in water and moves along with water flow, impurities in water cannot be accumulated among the plurality of external pressure type hollow fibers; during backwashing, purified water flows downwards from the water outlet through the permeable micropores and permeates out to wash impurities attached to the surface of the externalpressure type hollow fiber, so that the external pressure type hollow fiber is convenient to wash, the washing difficulty is greatly reduced compared with the prior art, and the washing cost is saved.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to a water purification ultrafiltration membrane module. Background technique [0002] With the development of society, water purification equipment has entered thousands of households and is popular among the public. The ultrafiltration membrane installed in the water purifier is the main water purification device, and most of them are composed of internal pressure or external pressure fiber bundles. The water purification effect is good, and the surface of the fiber bundle has a filter hole of 0.01mm, but the existing ultrafiltration membrane is generally bundled into a columnar fiber bundle for filtration, so after a long time of use, impurities are mixed in a , The filter hole is easy to be blocked, so it needs to be disassembled and cleaned manually, and sometimes it is necessary to add an acid solution, which is costly and dangerous to clean. [0003] Therefore, those...

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Problems solved by technology

[0002] With the development of society, water purification equipment has entered thousands of households and is popular among the public. The ultrafiltration membrane installed in the water purifier is the main water purification device, and most of them are composed of internal pressure or external pressure fiber bundles. The water purification effect is good, and the surface of the fiber bundle has a filter hole of 0.01mm, but the existing ultrafiltration membrane is generally bundled into a columnar fiber bundle for filtration, so after a long time of use, impurities are mixed in a , easy to block the filter hole, so it needs to be manually disassembled and cleaned, and sometimes it is necessary to add an acid solution, the cleaning cost is high and dangerous

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