CN201227581Y - Improved filter film - Google Patents

Abstract

The utility model discloses an improved filter membrane, which comprises a filter membrane body, and the filter membrane body is provided with three through holes along its length direction. In the utility model, the filter membrane body is provided with three through holes along its length direction. The filter channel not only includes the hole wall between each hole and the outside world, but also includes the hole wall between adjacent holes. The area of the filter channel is relatively large, so that The filtering effect is better. And in the utility model, the diameter of the filter membrane body is 2.5-6.5mm, and the inner diameter of the three through holes is 0.5-1.2mm, which greatly enhances its structural strength and pressure resistance, and is not easy to break during use.

Description

An Improved Filtration Membrane

technical field

The utility model relates to the technical field of membrane separation, in particular to a filter membrane.

Background technique

Membrane separation technology is to selectively separate substances through the microporous structure on the surface of the membrane. When the liquid mixture flows through the surface of the membrane under a certain pressure, small molecular solutes pass through the membrane (called reverse osmosis solution), while macromolecular substances are intercepted, so that the concentration of macromolecules in the original solution gradually increases (called concentrated solution), thus To achieve the separation, concentration and purification of large and small molecules. Membrane separation technology is widely welcomed by users for its remarkable energy-saving effect, simple equipment, convenient operation and easy control.

Now commonly used filter membrane is hollow fiber membrane, because it is a single hole structure, the filter channel only has the hole wall of this single hole, the filter channel area is small, and the filter effect is not very ideal. Moreover, the hollow fiber membrane with such a single-hole structure has a small diameter (diameter<0.5mm), low structural strength, weak pressure resistance, and broken filaments often occur during use.

Utility model content

The purpose of the utility model is to provide an improved filter membrane with better filtering effect, higher structural strength and stronger pressure resistance.

The technical solution of the utility model is as follows: an improved filter membrane, including a filter membrane body, and three through holes are opened through the filter membrane body along its length direction.

The diameter of the filter membrane body is ^2.5-6.5mm , and the inner diameters of the three through holes are ^0.5-1.2mm .

The above-mentioned three through-holes are distributed at three corners of an equilateral triangle on the cross-section of the above-mentioned filter membrane body.

After adopting the above scheme, in the improved filter membrane of the present invention, the diameter of the filter membrane body is ^2.5-6.5mm , and the inner diameters of the three through holes are ^0.5-1.2mm , which greatly enhances its structural strength and pressure resistance. It is not easy to break the wire. And in the utility model, the filter membrane body is provided with three through holes along its length direction. The filter channel not only includes the hole wall between each hole and the outside world, but also includes the hole wall between adjacent holes. The area of the filter channel is relatively large. Thus the filtering effect is better.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Detailed ways

An improved filter membrane of the present invention, as shown in Figure 1, includes a filter membrane body 1, and the filter membrane body 1 is provided with three through holes 11, 12, 13 along its length direction, and the through holes 11, 12, 13 On the cross-section of the filter membrane body 1 , the positions of the three corners of an equilateral triangle are distributed.

Wherein, the diameter of the filter membrane body 1 is 2.5mm, and the inner diameters of the through holes 11, 12, 13 are 0.5mm. Or, the diameter of the filter membrane body 1 is 3.2mm, and the inner diameters of the through holes 11, 12, 13 are 0.7mm. Or, the diameter of the filter membrane body 1 is 4.5mm, and the inner diameters of the through holes 11, 12, 13 are 0.9mm. Or, the diameter of the filter membrane body 1 is 6.5mm, and the inner diameters of the through holes 11, 12, 13 are 1.2mm.

Claims (3)

1. An improved filter membrane, comprising a filter membrane body, characterized in that: the filter membrane body is provided with three through holes along its length direction. 2. An improved filter membrane according to claim 1, characterized in that: the diameter of the filter membrane body is ^2.5-6.5mm , and the inner diameter of the three through holes is ^0.5-1.2mm . 3. An improved filter membrane according to claim 1, characterized in that the three through-holes are distributed at three corners of an equilateral triangle on the cross-section of the filter membrane body.

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