Hollow-fiber membrane module with flexible end
A fiber membrane and hollow technology, applied in the field of hollow fiber membrane modules, can solve the problems of easy breakage, brittle breakage of membrane filaments, and reduce the service life of hollow fiber membrane modules, and achieve the effect of preventing filament breakage and increasing flexibility.
Active Publication Date: 2010-01-13
BEIJING CRYSTEC TECH
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Problems solved by technology
[0004] In the process of making and using most hollow fiber membrane modules, it is found that no matter centrifugal casting or ultrasonic oscillation is adopted, it is encapsulated with a binder of epoxy resin. , crosslinking agent, toughening agent, diluent and filler, etc., and strive to form a kind of adhesive with good rigidity and good toughness, etc., but due to the brittleness of epoxy resin itself, The root of the membrane filament becomes a stress concentration point, which is easily broken during use or cleaning, resulting in brittle fracture of the membrane filament and greatly reducing the service life of the hollow fiber membrane module
Method used
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Embodiment Construction
[0011] The hollow fiber membrane module proposed by the present invention includes a shell with two water purification ports, a hollow fiber membrane tow installed in the shell, a head for fixing the hollow fiber membrane tow on the inner wall of the shell, and a The end cover of the water inlet or outlet, and the head has been cast twice or more times, and the inlet or outlet on the shell is used as the injection hole for the second package. The fiber is made of epoxy resin for the first time. Encapsulate and fix between the filaments and between the fiber tow and the shell, and inject the flexible adhesive for the second time from the inlet or outlet of the shell, so that the fiber filaments and the head form a tapered tough body. At the root of the protective film.
[0012] The present invention will be described in detail below in conjunction with the embodiments and accompanying drawings.
[0013] This example is a non-limiting example of the present invention.
[0014]...
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A hollow fiber membrane module with a flexible end belongs to the technical field of membrane filtration and separation and is characterized in that both ends of a module housing 5 are respectively provided with clear water outlets 4A and 4B; besides that the clear water outlets 4A and 4B serve as injection holes of epoxy resins during the first packaging to form first packaging layers 2A and 2B, clear water outlets 4A and 4B also serve as the injection holes during the second packaging and the following multiple packaging and flexible adhesives are injected so as to form a flexible tapered second packaging layer 3A or 3B between the end of a hollow fiber membrane tow 1 and the first packaging layer 2A or 2B to enhance the shock strength, prevent the hollow fiber membrane tow from suffering stress concentration in the root in the use process and prolong the service life of the hollow fiber membrane module. The module is suitable for being used in the process of liquor separation in the fields such as energy, environmental protection, bioengineering and the like.
Description
technical field [0001] The invention relates to a hollow fiber membrane module using a hollow fiber membrane to process liquid, in particular, the invention relates to a hollow fiber membrane module with a flexible end that can be used in liquid separation in the fields of energy, environmental protection, bioengineering and the like. Background technique [0002] Hollow fiber membrane is a very advanced filter material. It uses the osmosis of the hollow fiber membrane wall to separate, extract, purify, concentrate, enrich, etc., according to the pore size and selective permeation of the hollow fiber membrane. Different substances can be divided into: microfiltration membrane, ultrafiltration membrane, etc. The hollow fiber membrane module with hollow fiber membrane bundle has the characteristics of high packing density, large filtration area, low manufacturing cost per unit membrane area, and high pressure stability. It has been widely used in environmental protection, chem...
Claims
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Inventor 孟繁欣沈军彦高爱华黄卓孟繁明
Owner BEIJING CRYSTEC TECH