Water purification membrane structure for desalinating seawater

Abstract

The invention discloses a water purification membrane structure for desalinating seawater. The water purification membrane structure comprises a fixing ring and a water purification membrane, whereinthe fixing ring is movably connected with the water purification membrane; the water purification membrane comprises a filtration membrane, a reverse osmosis membrane and an ultrafiltration membrane;the filtration membrane is located on the innermost side of the water purification membrane; the reverse osmosis membrane is located on the outer side of the filtration membrane; the reverse osmosis membrane is located between the filtration membrane and the ultrafiltration membrane; the ultrafiltration membrane is located on the outer side of the reverse osmosis membrane; the fixing ring comprises a pressurization device, a first magnet and a second magnet; the first magnet is located at the top of the second magnet; the pole N of the first magnet is laminated with the pole S of the second magnet; the pole N of the first magnet is downward and the pole S of the first magnet is upward; the pole S of the second magnet is upward and the pole N of the second magnet is downward; the pole N, which is laminated with the second magnet, of the first magnet is provided with multiple arc-shaped grooves and arc-shaped bulges. The water purification membrane structure for desalinating the seawaternot only can be used for filtering sewage to form purified water, but also can be used for filtering the seawater to form fresh water through the reverse osmosis membrane.

Description

technical field [0001] The invention relates to the technical field of water purification membranes, in particular to a seawater desalination water purification membrane structure. Background technique [0002] At present, most of the nanofiltration membranes or reverse osmosis membranes on the market are roll-type, compact in structure, and the effective area can be well utilized. It is suitable for use in situations where it is convenient to pressurize, but it is not good in an environment where it is inconvenient to pressurize. In use, the cleaning of the roll-type membrane is difficult, and the dirt should be cleaned with a cleaning agent. It is difficult to clean under the condition of pressurization, which exposes the use defects of this type of water purification membrane. A kind of easy-to-clean water purification membrane is mentioned in Chinese patent CN204911245U , although it solves the problem of being difficult to clean, there is a problem of single function. I...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a seawater desalination water purification membrane structure, which has the advantages of convenient cleaning and seawater desalination, and solves the problem of single function and limited application range

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