A kind of selectively filtered reverse osmosis membrane module

By designing a selective filtration reverse osmosis membrane module, and using filtration control components and pre-filtration components to control pre-filtration according to water quality conditions, the problem of poor anti-fouling performance of reverse osmosis membranes is solved, thereby improving the utilization rate and performance of reverse osmosis membranes.

CN117531370BActive Publication Date: 2026-07-03HEFEI XILI ELECTRIC CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
HEFEI XILI ELECTRIC CO LTD
Filing Date
2023-11-28
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing reverse osmosis membranes have poor anti-fouling performance, which leads to the fouling of reverse osmosis membranes by water of poor quality during the treatment process, reducing their utilization rate.

Method used

Design a reverse osmosis membrane module with selective filtration. Through a filtration control module and a pre-filtration module, determine whether pre-filtration is needed based on water quality conditions to prevent poor-quality water from directly entering the reverse osmosis membrane and reduce contamination.

Benefits of technology

It improves the utilization rate and performance of reverse osmosis membranes, reduces the fouling of reverse osmosis membranes by poor-quality water, and enhances the anti-fouling performance of reverse osmosis membranes.

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Abstract

This invention discloses a selective filtration reverse osmosis membrane module, relating to the field of water filtration equipment technology. The invention includes a filtration control component, a pre-filtration component, and a reverse osmosis membrane. The filtration control component internally includes an inlet, a pre-filtration channel for water flowing to the pre-filtration component, and a reverse osmosis membrane channel for water flowing directly to the reverse osmosis membrane. The pre-filtration channel is fixedly connected to the pre-filtration component; the reverse osmosis membrane channel is fixedly connected to the reverse osmosis membrane. The filtration control component includes a sleeve and a piston rod, with the piston rod movably fitted to the top of the sleeve. The position of the piston rod within the sleeve controls the activation and deactivation of the pre-filtration channel and the reverse osmosis membrane channel. Through the functions of the filtration control component and the pre-filtration component, this invention can determine whether pre-filtration is necessary based on the water quality, thereby improving the water quality environment for the reverse osmosis membrane, reducing water contamination of the reverse osmosis membrane, and improving the utilization rate and effectiveness of the reverse osmosis membrane.
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