Water filtration device and method of its manufacture

A technology of water filtration and filtration membrane, applied in chemical instruments and methods, ultrafiltration, osmotic/dialysis water/sewage treatment, etc. Improved filtration performance, effectiveness and improved usability

Inactive Publication Date: 2003-10-01
韦斯特高弗兰德森股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There may also be problems with the fact that in many regions, especially in developing countries, there is simply no reliable source of drinking water
The disadvantages of these devices are, on the one hand, the low capacity of filtering liquid per unit capillary membrane surface area and unit time expressed in "liters", on the other hand, the filter device requires a high pressure difference to obtain the filtration effect

Method used

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  • Water filtration device and method of its manufacture
  • Water filtration device and method of its manufacture

Examples

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Embodiment Construction

[0015] The filter housing is indicated by reference 10 in the figures. The filter housing 10 is provided with an inlet connection 11 and an outlet connection 12 . A group of capillary filter membranes 20 are arranged in the filter housing 10 , and the first ends 21 of which are embedded in the membrane holder 30 . At a first end 21 the capillary membrane is open and at the other end 22 the capillary membrane is closed. The filter housing 10 can be made of a hard material such as polysulphone, PVC or metal, but can also be made of a flexible material. In the latter case, the water filter device can be used in a bent state. In the illustrated embodiment, filter housing 10 comprises a cylindrical element.

[0016] In the illustrated embodiment, the first end 21 of the membrane 20 is embedded in a resin, such as epoxy or polyurethane, which acts as the membrane holder 30 . At the other end 22, the capillary membrane 20 is closed by heat sealing, ie heating while clamping. Thi...

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Abstract

The invention relates to a water filter device for local disinfection of domestic water and/or drinking water, the water filter device comprises a filter housing (10), which is provided with an inlet joint (11) and an outlet joint (12) , several capillary membranes (20) are arranged in the filter housing (10), the first end (21) of the capillary membrane is open, and the other end (22) is closed, and the capillary membrane (20) The first end (21) is molded into a membrane holder which closes the space between the capillary membrane (20) and the filter housing. The membrane is a microfiltration or ultrafiltration membrane with an asymmetric pore structure, the pore structure is asymmetric, and the diameter of the pores decreases gradually along the flow direction of the liquid through the membrane wall. The membrane is made of polyethersulfone/polyvinylpyrrolidone polymer (PES/PVP polymer). Depending on the practical application, the minimum diameter of a hole with an asymmetric structure is 0.01 to 0.3 μm on one side.

Description

technical field [0001] The present invention relates to a water filter device for local disinfection of daily water and / or drinking water. The water filter device includes a filter housing with an inlet joint and an outlet joint. A capillary membrane, the first end of the capillary membrane is open, the other end is closed, the first end of the capillary membrane is embedded in the membrane holder, and the membrane holder closes the capillary membrane and the filter housing space between. Background technique [0002] Devices for the purification of liquids, in particular for the purification of drinking water and the removal of live microorganisms from said drinking water, are well known in the prior art. Generally, the existing devices for purifying drinking water are very large and occupy a large area. Often outdated technology and obsolete equipment are used that do not allow for proper purification of drinking water. Subsequently, germs or other contaminants may be p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D63/02B01D61/18C02F1/44B01D69/08B01D65/08
CPCB01D61/18B01D63/024B01D65/08B01D69/08B01D2315/06B01D2321/04B01D2321/08B01D2321/2016
Inventor 约翰·J·沙尔施图尔
Owner 韦斯特高弗兰德森股份公司
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