External pressure type hollow fiber film component and using method

Abstract

The invention provides an external pressure type hollow fiber membrane component. The upper end of the membrane component is provided with a first water inlet and a first epoxide resin body; the lower end of the membrane component is provided with a second water outlet and a second epoxide resin body; the upper end and the lower end of a hollow fiber membrane filament in the membrane component are respectively fixed and communicated with the first water outlet and the second water outlet; fluid distributing elements are embedded inside the second epoxide resin body; the fluid distributing elements are provided with fluid distribution holes exposed on the upper surface of the second epoxide resin body and are communicated with an outside fluid source. The membrane component can realize that two ends of the external pressure type hollow fiber membrane component discharge water, gas and liquid are uniformly distributed, mud can be discharged from the membrane component by low position, the production and the processing are easy to realize, and the requirements of large-sized film membranes are met. The invention also provides a using method of the hollow fiber membrane component, which can more thoroughly clean the membrane component and prolong the filter-clean cycle of the membrane component.

Description

technical field [0001] The invention relates to a structural design of a hollow fiber membrane module and a method for using it, in particular to a manufacturing method and a method for using a larger size external pressure type hollow fiber membrane module. Background technique [0002] Membrane technology is an interdisciplinary new technology field developed internationally in the 1960s. Due to its operation at room temperature, no phase change, obvious energy-saving effect, no pollution in the production process, and purified The medium can be reused and other characteristics, so it has been rapidly promoted and applied in various industrial fields. With the increasing application of membrane technology in various fields such as chemical industry, biochemical pharmacy, food and beverage, and environmental protection, the market demand for large-scale hollow fiber membrane modules is also increasing. However, for the external pressure hollow fiber membrane module, as the...

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Problems solved by technology

However, this method of single-end water outlet of the membrane filament has a great influence on the water production of the membrane module. The test results show that when the length of the membrane filament is greater than 1.5 meters, the effect of the length of the membrane filament is significant. For example, when the inner diameter of the membrane filament is 0.6mm and the length is At a height of 1.8 meters, the water production of the membrane module with water outlet at both ends is about 50-100% higher than that of the membrane module with water outlet at one end. Therefore, it is necessary to further develop large-scale external pressure hollow fiber membrane modules with water outlet at both ends and their corresponding method of use

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