Hollow fiber membrane encapsulation technology

A packaging process and fiber membrane technology, applied in the field of membrane separation, can solve the problems of high cost, time-consuming and labor-consuming, and unguaranteed packaging quality, and achieve the effects of low cost, reduced cutting difficulty, and low production cost

Inactive Publication Date: 2014-09-10
HANGZHOU CREFLUX MEMBRANE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the defects of time-consuming, labor-intensive, high cost and unguaranteed packaging quality in the prior art hollow fiber membrane packaging process, the present invention provides a hollow fiber membrane packaging process with simple process, low cost and good packaging effect

Method used

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  • Hollow fiber membrane encapsulation technology

Examples

Experimental program
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Effect test

Embodiment 1

[0022] A hollow fiber membrane encapsulation process, as shown in Figure 1, a bundle of 330 hollow fiber membrane filaments 1 with a length of 1.7m, an outer diameter of 1.1mm, and an inner diameter of 0.55mm is fastened with ropes at both ends, The lower end is cut evenly without a coating head, and it is put into the packaging membrane shell 2. The lower end of the membrane wire 1 protrudes from the lower end surface of the packaging membrane shell 2, and the upper end is lifted so that the lower end part hangs down neatly. In a prepared open container 3 Pour some protection liquid 4, the density of the protection liquid 4 is 1.26g / cm 3 Insert the membrane filament 1 vertically into the liquid, add some pure glycerin in an appropriate amount, so that the liquid level of the pure glycerin is just flush with the lower end of the packaging membrane shell 2, and the pure glycerin fills the inner hole of the membrane filament 1 and the membrane filament 1 On the outer side of the...

Embodiment 2

[0024] A hollow fiber membrane encapsulation process schematic diagram and processing steps are the same as in Example 1, the difference is that the encapsulation glue 5 uses polyurethane, the protective liquid 4 uses pure glycerin, and the opening container 2 is filled with the encapsulation glue 5 about 4 cm, which is also conveniently obtained. Prepackaged membrane bundles with a height of 4 cm.

Embodiment 3

[0026] A hollow fiber membrane encapsulation process schematic diagram and processing steps are the same as in Example 1, the difference is that the encapsulation glue 5 uses polyurethane, and the protection liquid 4 uses liquid paraffin, because liquid paraffin will also solidify, so after the paraffin solidifies, proceed to step 3 ), after curing in step 4), take out the consolidated membrane bundle, packaging membrane shell, and solid paraffin from the open container together, and then neatly glue the excess membrane wire 1 along the glue surface of the end surface of the packaging membrane shell 2 After cutting off, a bundle of encapsulated membrane bundles is obtained. Because the paraffin is very soft, it is very easy to cut.

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Abstract

The invention relates to the technical field of membrane separation and particularly relates to and discloses a hollow fiber membrane encapsulation technology. The encapsulation technology comprises the following steps: pretreating hollow fiber membrane yarns and vertically putting the hollow fiber membrane yarns into an opened container which is hermetically connected with an encapsulation membrane shell; pouring a protective liquid into the opened container, wherein the liquid level is flush with the lower end surface of the encapsulation membrane shell, the density of the protective liquid is greater than that of encapsulation glue and the protective liquid and the encapsulation glue do not dissolve in each other; pouring encapsulation glue into the opened container according to pre-encapsulation height; standing until the encapsulation glue is solidified; taking out a membrane bundle and the encapsulation membrane shell which are consolidated together; and cutting off membrane yarns along the glue surface at the end surface of the encapsulation membrane shell. According to the encapsulation technology, the glue is prevented from entering a membrane yarn hole by virtue of the protective liquid which neither dissolves in the encapsulation glue, nor affects the membrane yarns, and has density greater than that of the encapsulation glue, and the glue does not need to cut after solidification; the encapsulation technology has the advantages of being simple and feasible, being low in production cost and suitable for large-batched production and having a good encapsulation effect.

Description

technical field [0001] The invention relates to the technical field of membrane separation, in particular to a hollow fiber membrane encapsulation process. Background technique [0002] The encapsulation of hollow fiber membranes refers to the process of pouring the end of a single hollow fiber membrane through an adhesive to form a hollow fiber membrane bundle, and cutting out the end surface that exposes the inner hole of the membrane. [0003] At present, the cutting process of hollow fiber membrane packaging is mostly to cut off part of the end membrane filament together with the adhesive after the adhesive is cured, so as to achieve the purpose of cutting out the inner hole of the membrane filament. However, in order to ensure the airtightness and pressure resistance of the hollow fiber membrane bundle, the adhesive usually has a high hardness after curing, and some operations are cut off together with the packaging mold, and a cutter is generally used for cutting the h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D63/02
Inventor 童威洋付源洪海云赵辉张星星
Owner HANGZHOU CREFLUX MEMBRANE TECH
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