How to confirm the high efficiency air filter replacement cycle
How to confirm the high efficiency air filter replacement cycle Shanghai Sujing Industrial Co., Ltd. Antimicrobial Hemodialysis Catheter Hemodialysis Catheter,dialysis Catheter,powertrialysis dialysis catheter,peritoneal dialysis catheter,dialysis catheter kit Anesthesia Medical Co., Ltd. , https://www.jssinoanesthesia.com
The clean room has strict regulations on the humidity, temperature, fresh air volume, state, and illumination of the environment, ensuring the production quality of the product and the comfort of the working environment of the personnel. The entire clean room system is equipped with an air purification system using a three-stage filter with primary effect, medium efficiency and high efficiency filter to control the number of dust particles in the clean area and the number of settled bacteria and floating bacteria. The operation of the entire purification system is determined, so it is very important to grasp the replacement time of the high-efficiency filter .
*, we start with a high-efficiency air filter . In a clean clean room, whether it is a high-efficiency air filter installed at the end of the clean air conditioning unit or a high-efficiency air filter installed at the high- efficiency air supply port , these must be accurate. Sexual running time record and cleanliness and air volume are used as replacement basis. For normal use , the service life of high efficiency filter can be more than one year. For example, the front end protection can be used for a long time. There is no problem for more than two years. Of course, this depends on the quality of the high efficiency air filter, and may be longer;
Second, if the high-efficiency air filter installed in the purification equipment, such as the high-efficiency filter in the automatic air shower chamber, such as the front-end primary filter protection, the high-efficiency filter can last for more than two years; the high efficiency filter purification work table, we can purify pressure table workbench prompt to replace the high efficiency filter, high efficiency filter clean booth on the air filter can be determined by detecting the wind speed of the HEPA filter The ideal time for replacement, such as the high-efficiency air filter replacement on the FFU fan filter unit, is to replace the high-efficiency air filter with the prompt in the PLC control system or the prompt of the differential pressure gauge.
Third, some of our experienced air filter installers have summed up valuable experience. I would like to introduce you here. I hope that you can help you to get more accurate time in the air filter replacement. It is shown that when the air filter resistance reaches 2 to 3 times the initial resistance, the maintenance or replacement of the air filter should be stopped.
In the absence of a differential pressure gauge, you can choose whether you need to change according to the following simple double-body pattern:
1) Check the color of the filter on the up and down side of the air filter. If the color of the filter material on the wind side is black, it is ready to be changed.
2) Touch the air filter on the air outlet surface filter by hand. If there is more dust on the hand, you should prepare to change it.
3) Record the change status of the air and air filter multiple times, and summarize the change cycle;
4) Under the premise that the high-efficiency air filter does not reach the final resistance, the pressure difference between the clean room and the adjacent room is significantly reduced, and it may be that the primary and medium-effect filter resistance is too large, and it is necessary to prepare for replacement;
5) The cleanliness in the clean room is not up to the design request, or the negative pressure is present. When the air-conditioning filter has not arrived at the time of the change, it may be that the high-efficiency air filter has too much resistance and should be prepared to change.
　　
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