English
中文简体Air purifier filters refers to an air filter device, which is generally used in clean workshops, clean workshops, clean operating rooms, laboratories and clean rooms, or for dustproofing of electronic mechanical communication equipment. There are five types of primary filters, medium efficiency filters, HEPA filters, and sub-high efficiency filters. Various models have different standards and performance.
In pneumatic technology, Air purifier filters, pressure reducing valves and lubricators are called the three major pneumatic components. In order to obtain multiple functions, these three air source treatment components are often assembled together in sequence, which is called a pneumatic triplet. It is used for air purification and filtration, decompression and lubrication.
The installation sequence of the three parts is air filter, pressure reducing valve and lubricator according to the air intake direction. The three major pieces are indispensable air source devices in most pneumatic systems. They are installed near the gas equipment and are the final guarantee for the quality of compressed air. In addition to ensuring the quality of the three major pieces themselves, space saving should also be considered in their design and installation. , Easy to operate and install, can be combined arbitrarily and other factors.
1. The main control parameters selected by HEPA filters manufacturers include filtration efficiency, rated air volume, initial resistance at rated air volume, dust holding capacity, etc. It depends on your specific use environment to see whether these parameters are suitable and whether they conform to relevant specifications.
2. The commonly used filter materials for high-efficiency air filters are ultra-fine glass fiber, etc. You can make a judgment on the pros and cons of the product after understanding the ultra-fine glass fiber.
3. According to the method specified in GB/T6165-1985 "High-efficiency air filter performance test method transmittance and resistance", the transmittance is less than or equal to 0.1% (ie efficiency is greater than or equal to 99.9%) or the count of particles with a particle size greater than or equal to 0.1μm The filter with transmittance ≤0.001% (ie efficiency ≥99.999%) is a high-efficiency air filter.
4. When designing, double the initial resistance can be used as the final resistance as the calculated resistance of the filter. The initial resistance of the high-efficiency air filter shall not exceed 10% of the resistance of the product sample. The high-efficiency air filter should not be used alone, and the high-efficiency air filter should be set at the end of the purification air conditioning system.
5. The air filter should meet the fire protection requirements. The high-efficiency air filter is divided into three levels according to the degree of fire resistance: the first-level filter, all the materials of the filter are non-combustible, and the non-combustible material should meet the GB8624-1997 grade A. Class 2 filter, the filter material should be non-combustible material that conforms to GB8624-1997 Grade A, and the partition plate and frame can be made of combustible material that conforms to GB8624-1997 Grade B2. 3-stage filter, all the materials of the filter can meet the GB8624-1997 B3 level.
6. Air purifier filters manufacturers should provide high-efficiency filters with leak detection proof materials when they leave the factory. In general non-parallel flow clean air-conditioning systems, combined filter air outlets are often used.
