Membrane device for water purifier and encapsulation method of membrane device

Abstract

The invention relates to a membrane water treatment technology, and aims to provide a membrane device for a water purifier and an encapsulation method of the membrane device. The product comprises a membrane shell and a total membrane bundle which is cast in the membrane shell with a packaging adhesive, and consists of 4 to 16 side-by-side middle membrane bundles, wherein each middle membrane bundle has the following structure: small bundles are formed by mixing 20 to 200 side-by-side filter hollow fiber membrane filaments and a plurality of activated carbon fibers, and 1 to 5 equal-length exhaust hollow fiber membrane filaments are arranged between every 2 to 20 small bundles; after being folded in a U shape, the small bundles and the exhaust hollow fiber membrane filaments are wrapped by separating nets to form middle membrane bundles. The U-shaped encapsulation allows more membrane filaments to be exposed, the chance of splicing between the filament and the filament is minimized, and the practical effective membrane filtration area is increased. The microorganisms and other protein secondary pollutants produced by retention are adsorbed by activated carbon fibers, so that the service life of the membrane filaments is prolonged. The hydrophobic exhaust hollow fiber membrane filaments are encapsulated between the membrane filaments of the small bundles to well play an exhaust role.

Description

technical field [0001] The invention belongs to membrane water treatment technology, in particular to the field of household water purifiers, and relates to a membrane device for a water purifier and a packaging method thereof. Background technique [0002] The so-called household water purifier is a drinking water device that performs advanced treatment of tap water. Household water purifiers began in the 1950s, became popular in the 1970s, and continue to this day. In today's daily life, the problem of household water pollution has plagued many people and caused a lot of trouble for household water. With the improvement of living standards, the demand for household water purifiers is increasing, and membrane devices, as the core filter components of household water purifiers, have been continuously improved and optimized by membrane water treatment technicians, and there are still the following problems. [0003] At present, the packaging of membrane devices is inserted ...

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Problems solved by technology

[0003] At present, the packaging of membrane devices is inserted into the membrane shell by U-shaped folding of a large bundle of membrane filaments. This folding has disadvantages: the length of the outer and inner membrane filaments of the U-shaped fold of the large membrane bundle is very different. Severely overlap the outer surfaces of the membrane filaments to reduce the actual membrane filtration area

The above two methods have similar disadvantages: the phenomenon of membrane filament aggregation, the actual effective membrane area does not increase correspondingly, but increases the cost of the membrane filament of the device

[0006] Fourth, the membrane device used in the water purifier adopts the dead-end filtration method. It is difficult to completely remove the gas in the membrane shell when it is used for the first time, and an air resistance is formed in the membrane device, making it difficult for some membrane filaments to be completely submerged in water, affecting Utilization of membrane filtration area

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