Composite end cover, split mounting type filtering membrane group, membrane filtering unit and system

Abstract

The invention discloses a composite end cover. The composite end cover comprises an outer sleeve pipe and a central pipe, wherein the outer sleeve pipe is provided with an outer sleeve pipe inner cavity; the central pipe is arranged in the outer sleeve pipe and arranged in the axial direction of the outer sleeve pipe inner cavity; the outer sleeve pipe is provided with at least two side connectors; the central pipe is provided with vertical three-way openings corresponding to the positions of the side connectors; the number of the vertical three-way openings is equal to that of the side connectors. The invention further discloses a split mounting type filtering membrane group. The split mounting type filtering membrane group comprises at least two composite end covers and a filtering membrane component arranged between the two composite end covers, wherein the filtering membrane medium open end face of the filtering membrane component is communicated with an inner ring cavity; a central hole of the filtering membrane component is communicated with the central pipe. The invention further discloses a membrane filtering unit and a membrane filtering system formed on the basis of the split mounting type filtering membrane group. Manufacturing of the membrane filtering unit and the membrane filtering system can be finished through simple split mounting of the composite end covers and the split mounting type filtering membrane group, so tedious and complicated pipeline connection between a plurality of membrane assemblies or membrane components is eliminated, and flexible and modularized standardized production is realized.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a composite end cover, an assembled filter membrane group, a membrane filter unit and a system. Background technique [0002] Membrane separation technology has been widely used in the fields of water purification or liquid filtration and separation. In practical applications, the smallest filter body, membrane module or membrane element, needs to pass through many pipes, pipe connectors and supporting frames to form the basic membrane. Filtration unit, according to the different water filtration requirements of the project, the size of each membrane filtration unit is different, and the number of membrane modules or membrane modules included is also different. Generally, these pipeline connections, fixing and supporting need to be completed at the factory or project construction site The making of the frame. Many of these pipeline connections and other opera...

AI Technical Summary

Problems solved by technology

Irregular and complex pipes and pipe connections make a lot of space not fully utilized, reducing the space utilization rate of the installation site, which is not conducive to improving the filling density of membrane modules in the installation space, and is not conducive to reducing costs

[0005] Due to the limitations of the manufacturing process, some structural parts inside the membrane filtration system cannot be manufactured through one-time molding, and need to be manufactured separately and then assembled in general. The overall assembly involves the connection between parts, sealing and other operations; if the membrane If the filter system is relatively large, there will be more parts involved. If the manufacturing and assembly methods are not selected properly, the connection and sealing between these parts will add up to a considerable amount of work, which will also lead to a decrease in work efficiency and quality control. Increased difficulty, increased costs, etc.

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