Reverse osmosis membrane assembly, filter element and water purifier

Abstract

The invention discloses a reverse osmosis membrane assembly, a filter element and a water purifier. The reverse osmosis membrane assembly comprises a central pipe, a reverse osmosis membrane, an upper end cover and a lower end cover, wherein a plurality of water collection holes which are used for clean water to flow in are formed in the central pipe, a pipe orifice which is used for the clean water to flow out is formed in the upper end of the central pipe, and the lower end of the central pipe is closed; the reverse osmosis membrane sleeves the periphery of the central pipe, and the peripheral surface of the reverse osmosis membrane is a raw material infiltration surface which is used for infiltrating raw material; the upper end cover sleeves the upper end of the reverse osmosis membrane, the lower end cover is buckled at the lower end of the reverse osmosis membrane, and both the upper end cover and the lower end cover are matched with the peripheral surface of the reverse osmosis membrane in a sealing manner; and the upper end cover is provided with a through hole matched with the central pipe and a through groove which is disposed on the periphery of the central pipe and used for waste water to flow out. The reverse osmosis membrane is relatively high in filter efficiency and recovery rate.

Description

technical field [0001] The invention relates to the field of water purification equipment, in particular to a reverse osmosis membrane module, a filter element and a water purifier. Background technique [0002] The existing reverse osmosis membrane assembly of the filter element includes a central pipe, a reverse osmosis membrane wound on the central pipe along the circumferential direction of the central pipe, and a sealing film wound on the outer periphery of the reverse osmosis membrane. When working, the raw water enters from one end of the reverse osmosis membrane. During the axial flow process, part of the water is filtered by the reverse osmosis membrane and then enters the central pipe in the radial direction, and the other part flows into the wastewater from the other end of the reverse osmosis membrane in the axial direction. waterway. Since the water in the reverse osmosis membrane flows less in the radial direction, and more purified water will also mix with th...

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to propose a reverse osmosis membrane module, aiming to solve the technical problem of low filtration efficiency and recovery rate of the existing reverse osmosis membrane module

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