The Role Of Primary And Medium Efficiency Filters in Clean Room Air Conditioning Systems
I believe many people are not familiar with the roles of primary and intermediate filters in clean air conditioning systems, and how to choose filters in clean air conditioning plant systems.
Today we will talk about clean air conditioning systems, which are key equipment for ensuring air quality in clean factories. Primary and medium efficiency filters are important components of the air conditioning system. Primary filters are mainly used to filter large particles of dust, such as dust and dandruff, while medium filters are used to filter smaller particles of dust, such as bacteria. Cleanrooms are generally divided into: 100000 level, 10000 level, 1000 level, 100 level, and 10 level. The cleanliness requirements for each level are different, and the selection of cleanroom cleanliness is determined by different choices. The filtration of cleanrooms is generally carried out by air conditioning units to filter the air, which is then sent to the cleanroom through pipelines. The cleanroom cleanliness is determined based on the air volume, ventilation rate, exhaust rate, and indoor air circulation to meet the requirements.
Cleanroom air conditioning, as a key equipment to ensure a clean production environment, plays a crucial role in industrial production. As the core components of clean air conditioning systems, the pressure difference standards of primary and medium efficiency air conditioning filters directly affect the operating efficiency and cleanliness of the air conditioning system. The main function of primary and medium efficiency air conditioning filters is to filter out particulate matter and particles in the air, ensuring that the air supplied by the clean air conditioning system meets the requirements of the production environment. The initial pressure difference standard for primary and medium efficiency filters. The initial resistance of the primary efficiency filter is around 10-40Pa, and the final resistance is around 20-80Pa; The initial resistance of the medium efficiency filter is around 50-90Pa, and the final resistance is around 100-180Pa. The reasons and effects of increased pressure difference: As the operating time of the air conditioning system prolongs, the medium efficiency filter will be adhered by dust particles, the air permeability will gradually decrease, and the pressure difference will gradually increase. An increase in pressure difference can lead to a decrease in air supply volume, resulting in inadequate ventilation in the clean area and affecting the air quality of the cleanroom. Pressure difference refers to the static pressure difference on both sides of the filter, which is an important indicator for evaluating whether the filter needs to be replaced. Reasonable initial and intermediate pressure difference standards can control the replacement cycle of filters, reduce energy consumption costs, and extend the service life of air conditioning systems. The pressure difference standards for primary and medium filters in clean room air conditioning systems are usually specified by national standards or industry specifications. Under normal operating conditions, the initial pressure difference of the primary filter should not exceed 100Pa,
The initial pressure difference of the medium efficiency filter should not exceed 250Pa. In order to timely understand the pressure difference between the primary and medium efficiency filters, pressure difference monitoring instruments are usually installed in the air conditioning system. Once the pressure difference exceeds the standard, it will promptly remind relevant personnel to replace or clean it. Through the discussion of the initial and intermediate pressure difference standards for clean room air conditioning, we can clearly understand the importance of controlling the filter pressure difference reasonably. A reasonable pressure difference standard can ensure the operation of the air conditioning system, improve cleanliness, reduce energy consumption costs, and extend equipment life.
