Ultra clean workbench primary filter

Ultra clean workbench primary filterIt is one of the ways in which the ambient air in the workbench is filtered by the primary filter. The ultra clean workbench must pass through the primary filter and high-efficiency filter, and then be pressurized into the static pressure box by the centrifugal fan. After being filtered by the primary filter and high-efficiency filter, it is blown out from the air outlet to form a clean airflow. The clean airflow flows through the work area that needs to be purified at a uniform cross-sectional wind speed, carrying away the dust in the area and creating a high cleanliness working environment. Ultra clean workbench primary filter filtration efficiency: 35% @ ≥ 5.0um;Ultra clean workbench high-efficiency filterFiltration efficiency: 99.99% @ ≥ 0.3um.

The ultra clean workbench consists of several parts, including metal inner and outer boxes made of steel plates and stainless steel, purification fans, primary and intermediate filters, filters, static pressure chambers, control appliances, lighting ultraviolet lamps, universal moving wheels, and fixed wheels. We have learned about the components of the ultra clean bench, and now let's understand its working principle. It sucks in air from the outside, passes through a medium to low efficiency filter for simple filtration, and reaches a filtration efficiency of about G45. Then, it is pressurized by a fan and a static pressure chamber, and passes through the initial efficiency filter. The initial efficiency filter of the ultra clean bench achieves an efficiency of 99.99% @ 0.5 microns of dust, which is evenly blown into the working area through the diffuser plate below the high-efficiency filter, and then discharged downwards or outward through the desktop to maintain positive pressure in the operating area, achieving a hundred level purification.There is no doubt that the initial efficiency filter of the ultra clean workbench is an external air inlet and directly in contact with the outside world. Its dirty air and impurities are easily adsorbed onto the filter. We should clean and wash the external initial efficiency filter, which is usually made of non-woven cotton material and can be cleaned about 4-5 times before it must be replaced. After the initial filter, it mainly blocks dust of about 0.3-0.5 microns, with fine impurities that are directly adsorbed onto the filter paper. Due to the fact that the material of the initial air filter for the ultra clean workbench is fiberglass paper, it cannot be cleaned and can only be replaced. The replacement frequency of the initial air filter for ultra clean workbenches generally depends on the external environment, usually every 2-3 years. Generally, pharmaceutical factories and operating rooms must replace it once a year.

So many customers may ask, how do we determine if our ultra clean workbench needs to replace the primary air filter and high-efficiency filter? Is there any instrument that can detect it? The editor will explain it to you. The initial air filter is generally based on experience and judgment. If the initial air filter turns black, it means that dirty air has blocked the initial air filter. There are several ways to judge this:
1. The equipment itself is equipped with a differential pressure gauge, which is usually mentioned to the manufacturer at the time of ordering. Guangzhou Zijing can provide a matching differential pressure gauge according to customer requirements;
2. Using a dust particle counter, this instrument can periodically inspect the interior of the ultra clean workbench. If its testing parameters exceed the standard allowable number of dust, the filter needs to be replaced. Due to the high price of dust particle counters and their infrequent use by customers, they are generally equipped with relatively few.
3. Using empirical observation method, feel the size of the wind. If the wind speed is significantly lower than before, you can adjust it. If you still feel that the wind speed is too low after using it for a period of time, you can only replace the filter.The air purification products and equipment provided by Guangzhou Zijing include air shower roomsCargo shower room, primary filter, medium efficiency filter, high-efficiency filter, ultra clean workbench, clean workbench, transfer window, air shower room accessories, air shower room controller, chemical filter, FFU fan filtration unit, air purifier, clean shed, laminar flow hood, fresh air cabinet, filter cabinet, fume hood, washbasin, dust-free shoe cabinet/dust-free wardrobe, clean sampling vehicle, air supply ceiling, high-efficiency air outlet and other cleanroom and supporting purification products. Cleanroom purification equipment is widely used in electronics, semiconductors, biopharmaceuticals, food processing, nuclear industry, automotive manufacturing, air conditioning and heating industries and fields.

Zijing specializes in purification equipment and engineering, cleanroom contractors, cleanroom engineering, cleanroom construction, cleanroom cleanliness testing, cleanroom solutions, cleanroom standards, cleanroom construction, cleanroom equipment, cleanroom design, cleanroom construction, and cleanroom maintenance. Cleanrooms are also known as cleanrooms or cleanrooms.Quality assurance of "Zijing" brand air purification equipment products:
1. Our company's "Zijing" brand air purification equipment and air filter products have been approved domestically;
2. To meet the high quality requirements of our customers for clean rooms, every air purification equipment produced by our company undergoes strict inspection by our quality inspectors and can only be shipped if it meets the product quality standards; Air filters are produced and tested in standard Class 10000 cleanrooms.
3. After the completion of product delivery and acceptance, our company will establish independent records for your company and the ordered products, in order to provide high-quality and timely services to your company in the long term.
4. Product packaging: wooden crate or cardboard box packaging;
5. Shipping method: freight;
6. Delivery time: Our company will complete production within 5 working days from the date of receipt of payment after the contract is signed, and the goods will arrive within 3 working days;
Service Objective:
7. The "Zijing" brand air purification equipment and air filters produced by the company can provide long-term support;
8. Fault acceptance: 48 hours outside the province, 24 hours within the province;