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How to teach people to choose air filters
How to teach people to choose air filtersAir filters are air filtration devices, generally used in clean workshops, clean plants, clean operating rooms, laboratories, and clean rooms, or used for dust prevention of electronic machinery and communication equipment. There are five types of filters: primary filter, intermediate filter, high-efficiency filter, sub-high efficiency filter, and high-efficiency filter. Various models have different standards and efficiency.Air Filter In pneumatic technology, air filters, pressure-reducing valves, and oil misters are known as the three major components of pneumatics. To obtain a variety of functions, these three air source processing components are often assembled in sequence, called the pneumatic triplex. Used for air purification and filtration, pressure reduction, and provide lubrication. Three big pieces of the installation order according to the direction of air intake for the air filter, pressure-reducing valve, and oil mist. The three pieces are most of the pneumatic system in the indispensable air source device, installed in the air equipment near the compressed air quality assurance, its design, and installation, in addition, to ensure that the three pieces of their quality, but also consider space-saving, easy to operate and install, can be arbitrarily combined and other factors. Do you know how to buy air filters? Below, the primary filter manufacturer Qinglin Industry teaches you to buy air filters of the six major skills: 1. The main control parameters for the selection of high-efficiency air filters are filtration efficiency, rated air volume, initial resistance under the rated air volume, dust holding capacity, etc., which should be based on your specific use of the environment to see whether these parameters are appropriate and whether they are in line with the relevant norms. 2. The commonly used filter materials for HEPA filters include ultrafine glass fiber, etc. You can make a judgment on the advantages and disadvantages of the products after you have a specific understanding of ultrafine glass fiber. 3. According to GB/T6165-1985 "High-efficiency Air Filter Performance Test Methods Transmission Rate and Resistance", the filter is a high-efficiency air filter with a transmission rate of ≤0.1% (i.e., efficiency ≥99.9%) or a counting transmission rate of ≥0.1μm particles of ≤0.001% (i.e., efficiency ≥99.999%). 4. When designing, the initial resistance can be two times the final resistance as the calculated resistance of the filter. The initial resistance of a high-efficiency air filter shall not exceed 10% of the resistance of the product sample. High-efficiency air filters should not be used alone, high-efficiency air filters should be set in the purification of the air-conditioning system at the end. 5. The air filter should meet the requirements of fire protection, high-efficiency air filters are divided into three levels according to the degree of fire resistance: Level 1 filter, all the filter materials are non-combustible, non-combustible materials should be in line with GB8624-1997 A. Level 2 filter, filter media should be in line with the non-combustible materials of GB8624-1997 A. The divider, frame can be used in line with the GB8624-1997 B2 level of combustible materials. Grade 3 filter, all the filter materials can be used by GB8624-1997 B3 grade. 6. Dust capacity manufacturers should provide high-efficiency filter factory leakage test materials, in general, non-parallel flow clean air-conditioning systems using a combination of filters and more air. |
