Cylinder type membrane assembly prepared from multi-inner-hole membrane

Abstract

The invention provides a cylinder type hollow fibrous membrane assembly. The cylinder type hollow fibrous membrane assembly comprises a multi-inner-hole hollow fibrous membrane wire, a ring-shaped resin sealed end, a cylinder type membrane assembly shell, a flange end closure and a plurality of stream guidance aerating devices, wherein the inner holes of the hollow fibrous membrane are communicated with a ring-shaped dipping area; the axial direction of the hollow fibrous membrane wire is vertical to the axial direction of the membrane shell. The plurality of stream guidance aerating devices are arranged sequentially on the front end of a membrane filter area, the raw water scours the surface of the membrane from bottom to top like a spiral flow, the membrane wire damage caused by high-strength direct aerating of the lower end aerating to the membrane is avoided, the service life of the membrane is prolonged, the flow regime is stable, the collection of water is uniform, and a dead angle is avoided. The cylinder type membrane assembly can be used for a pipeline system online without additionally providing a large-area membrane pond or membrane filter area, so that the cylinder type membrane assembly has high economy and practicability.

Description

technical field [0001] The invention relates to a membrane module for treating organic waste water such as sewage, in particular to a tubular module prepared by adopting a multi-hole hollow fiber membrane, which can be directly installed in an engineering pipeline system online. Background technique [0002] A porous membrane, especially a separation membrane, the membrane is composed of at least one outer surface and one inner surface, including at least two longitudinally extending inner surfaces, forming an inner channel, and the outer surface of the inner channel is covered with the outer surface of the membrane. The surface, outer surface, and inner surface constitute their own independent separation layers, and the above membranes have been reported in related literature. [0003] The multi-inner porous membrane involved in the present invention has independent membrane outer surface and membrane inner surface, and the median pore diameter of the micropores on the oute...

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Problems solved by technology

However, due to the complex design of the device in the prior art, it not only increases the energy consumption of aeration, but also increases the space area requirement for aeration.

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