Technical parameters and maintenance of microporous filters

About Us

Wenzhou Yuanao Fluid Equipment Technology Co., Ltd

E-mail
2575861551@qq.com
Phone
18858782525,18958906543
Address
No. 12, Building 3, Bajiaxin Street, Shacheng Town, Longwan District, Wenzhou City

Date: 2022-04-11Read: 6

1Introduction

Micro porous filter is a new type of filtration equipment developed domestically and internationally. It can filter out particles and bacteria above 0.1um in liquids and gases. It has the advantages of high filtration accuracy, fast transition speed, minimal adsorption, no medium detachment, acid and alkali corrosion resistance, and easy operation. It is now widely used as an essential equipment in industries such as pharmaceuticals, chemicals, electronics, beverages, fruit wine, biochemical water treatment, and environmental protection.

2Technical Specifications

Filtration capacity T/H: 0.05-20

Filter usage pressure mpa: 0.1-0.6

Filter specifications: 1, 3, 5, 7, 9, 11, 13, 15 cores

Filter operating temperature ° C: 5-55

Filtering accuracy (um): 0.1, 0.2, 0.45, 1-60

Filtration capacity (t/h): 0.5-100

Filter cartridge length (m/m): 250-1000

Work pressure (Mpa): 0.1-0.6

The filter cartridge has 1 core, 3 cores, 5 cores, 7 cores, 9 cores, 11 cores, 13 cores, 15 cores, 21 cores, and 32 cores

The folding filter cartridge has lengths of 10, 20, 30, and 40

The filter material includes polypropylene, polytetrafluoroethylene, acetate fiber, polyether sulfone folding filter, etc

过滤孔径有： 0.1um 、 0.22um 、 0.45um、1um 、 3um 、 5um 、 10um 等

3Instructions for use

1. Clean the filter and its connecting components, and install the filter element and housing correctly.

2. Before starting up, first check whether the booster pump is running smoothly, whether the connection is tight, and whether all valves are closed.

3. Before starting up, slowly open the inlet valve and exhaust it, then open the outlet valve for normal filtration.

4. If the filter pressure difference is found to be greater than 0.1Mpa or the flow rate significantly decreases, it indicates that most of the filter holes are blocked. It is recommended that the customer clean or replace the filter element.

4structural function

The stainless steel microporous filter consists of a foldable microporous membrane filter element and a stainless steel outer cylinder, with single or multi-core filter elements assembled inside. The filter cylinder body is connected by quick installation clamps or quick opening ring head bolts, making it very convenient to install, remove, and clean the filter element. The inner surface of the filter is polished with a mirror finish (roughness Ra ≤ 0.28 μ m), without any hygiene blind spots, and meets the requirements of "FDA" and "GMP" specifications

Micro porous filters are divided into chemical grade and food grade. Food grade filters must be manufactured according to FDA standards. The filter material is high-quality stainless steel (304/316L), and both the inside and outside are finely polished. Its characteristics are small size, light weight, easy use, large filtration area, low blockage rate, fast filtration speed, no pollution, good thermal and chemical stability.

This series of stainless steel microporous filters can filter out the vast majority of particles, making them widely used in precision filtration and sterilization processes.

The filter cartridge has 1 core, 3 cores, 5 cores, 7 cores, 9 cores, 11 cores, 13 cores, and 15 cores

The folding filter cartridge has lengths of 10, 20, 30, and 40

The filter material includes polypropylene, polytetrafluoroethylene, and acetate fiber

过滤孔径有： 0.1um 、 0.22um 、 1um 、 3um 、 5um 、 10um

Filter cartridges with hydrophobicity (suitable for gases) and hydrophilicity (suitable for liquids) can be selected according to needs

5feature

Microporous filter cartridge: polypropylene membrane (PP) filter cartridge, polytetrafluoroethylene membrane (PTFE) filter cartridge, acetate fiber membrane (CN-CA) filter cartridge, with a filtration accuracy ranging from 0.1-60um and a length of 10; 20 ； There are four types of filters, 30 and 40 inches (i.e. 250; 500; 750; 1000mm), with a pressure resistance of 0.42mpa and the ability to backwash. There are two interface methods: plug-in (222 and 226 seats) and flat mouth.

Quick open high-efficiency filter

When the microporous filter leaves the factory, users must use different forms and materials of filter cartridges according to the filtering purpose, medium conditions, and configuration before use. For pharmaceutical water in GMP factories, it can be used in series with two sets of 5um and 1.0um folded membrane simple filter cartridges. In the fermentation industry, air filtration, as shown in the figure, can be used to remove bacteria and bacteriophages from the incoming air. It can also be used to treat the exhaust gas and meet the HIM standard for bacterial filtration in the United States.

6Maintenance and repair

Micro porous filters are now widely used as essential equipment in industries such as pharmaceuticals, chemicals, electronics, beverages, fruit wine, biochemical water treatment, and environmental protection. So its maintenance is very necessary, not only to improve the filtration accuracy, but also to extend the service life of the microporous filter. How can we do a good job of maintaining the microporous filter?

There are two types of maintenance for microporous filters, namely precision microporous filters and coarse microporous filters.

1. Precision microporous filter

① The core part of a precision microporous filter is the filter element, which is composed of special materials and is a consumable component that requires special protection.

② After the precision microporous filter works for a period of time, the filter element blocks a certain amount of impurities. At this time, the pressure drop increases and the flow rate decreases. It is necessary to remove the impurities in the filter in a timely manner and clean the filter element.

③ When removing impurities, special attention should be paid to the precision filter element, which must not be deformed or damaged. Otherwise, if the filter element is installed again, the purity of the filtered medium will not meet the design requirements.

④ Some precision filters cannot be reused multiple times, such as bag filters, polypropylene filters, etc.

⑤ If the filter element is found to be deformed or damaged, it needs to be replaced immediately.

2. Micro porous filter for coarse filtration

① The core part of the microporous filter for coarse filtration is the filter core, which is composed of a filter frame and stainless steel wire mesh. The stainless steel wire mesh is a vulnerable component and requires special protection.

② After the filter has been working for a period of time, a certain amount of impurities settle in the filter core. At this time, the pressure drop increases and the flow rate decreases. It is necessary to remove the impurities in the filter core in a timely manner.

③ When cleaning impurities, special attention should be paid to ensure that the stainless steel wire mesh on the filter element is not deformed or damaged. Otherwise, if the filter is installed again, the purity of the filtered medium will not meet the design requirements, and equipment such as compressors, pumps, and instruments will be damaged.

④ If the stainless steel wire mesh is found to be deformed or damaged, it needs to be replaced immediately.

The microporous filter has high filtration accuracy, fast transition speed, low adsorption, no medium detachment, acid and alkali corrosion resistance, easy operation, and a wide range of applications. Its role is becoming increasingly important.

Last Article: Characteristics of stainless steel sanitary grade filters

Next Article: Health grade safety valve parameters