Detachable hollow-fibre membrane component

Abstract

The invention discloses a detachable hollow-fibre membrane component comprising a catchwater channel, a water outlet pipe, a connecting piece and a hollow-fibre membrane, wherein one end of the connecting piece is provided with a connecting plate, 2 to 1000 connecting holes are arranged on the connecting plate, each connecting hole is moveably connected with a connecting pipe, and the end of the hollow-fibre membrane is fixedly connected with the inner surface of the connecting pipe by an adhesive. The hollow fibre-membrane bundle of the invention is convenient to wash, the cost of maintenance is low, the problem of low strength of the connecting piece due to integral bonding of the adhesive in the prior art is overcome, and the problems of easy adhesive failure and crack are solved.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a hollow fiber membrane module. Background technique [0002] At present, water source pollution is quite common and serious. Even in remote areas, water sources are often polluted by pesticides, fertilizers, livestock and poultry manure, industrial wastewater, residential areas and hospital sewage. In addition, when various sudden natural disasters such as earthquakes, floods, and mudslides occur, water pollution is even more inevitable. Therefore, the application of hollow fiber membrane technology in water treatment has emerged at the historic moment, and more and more. [0003] In the past, the hollow fiber membrane module included connectors, water collection tanks and hollow fiber membranes. One or both ends of the whole bundle of hollow fiber membranes were glued into the interior of the connectors as a whole through an adhesive. The water is collected into the...

AI Technical Summary

Problems solved by technology

[0004] First, high maintenance costs

When a broken wire occurs inside the hollow fiber membrane bundle near the connector, it is difficult to locate the broken wire. Even if the broken wire is found, the broken wire cannot be repaired. The membrane module has to be replaced as a whole, which increases the maintenance cost.

[0005] Second, easy to degumming and cracking

In the prior art, the joints formed by integral glue injection of the adhesive have low strength

In addition, the adhesive body and the water collection tank formed by the adhesive body and the membrane module are two different materials, and the amount of deformation caused by the temperature change is different, and because the water collection tank is generally very long (often above 45cm) or very thick ( Its diameter is more than 15cm), plus the vibration and stretching phenomenon caused by the impact of air and water on the hollow fiber membrane during the water production process, the cumulative effect of this deformation will be enlarged, and it will often increase with the extension of the running time. Partial cracking or overall degumming occurs, making the effluent water quality worse

[0006] Third, it is inconvenient to clean

The hollow fiber membrane filaments inside the hollow fiber membrane bundle after the overall glue injection are relatively dense, and a large amount of dirt is easy to accumulate, which is inconvenient to clean and restore, resulting in a decrease in the water production of the membrane

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