German
French
Italian
Portuguese
Japanese
Korrean
Russian
How to reduce the resistance of folded combined air filters?
How to reduce the resistance of folded combined air filters?There are many ways to reduce the resistance of folding combined air filters, and the following are some common measures:Choose the right filter material Material optimization: According to the filtration requirements, select the filter material with low resistance. For example, in the case of filtration efficiency requirements are not extremely high, synthetic fiber filters can be used to replace glass fiber filters because the fiber diameter of synthetic fiber filters is relatively thick, the pores are large, and the resistance of air passing is small. Optimize the filter structure: Select a filter with a loose, porous structure that allows air to pass through more smoothly. At the same time, specially treated filter materials can be selected, such as the filter material with hydrophobic treatment on the surface, which can reduce the condensation of water vapor on the surface of the filter material and reduce the increase of resistance caused by moisture. Optimized folding structure design Adjusting depth and spacing: Determine the optimal folding depth and spacing through experiments and simulations. Generally speaking, appropriately increasing the folding depth and expanding the folding spacing is conducive to reducing the resistance. For example, increasing the fold depth by 20% and expanding the fold spacing from 5 mm to 8 mm allows air to flow more smoothly through the filter and reduces drag. Folding with variable spacing: At the inlet and outlet of the filter, different folding spacing is used. The inlet air has a high dust content, and the folding interval can be appropriately increased to reduce the influence of dust accumulation on airflow. To ensure the filtering effect, a smaller folding spacing can be used at the exit, but it is necessary to ensure that too much resistance will not be increased due to too small spacing. Controlled airflow Reasonable selection: According to the actual use scenario and ventilation needs, choose the appropriate specifications of the filter, so that the rated air volume of the filter matches the actual airflow, to avoid excessive airflow resulting in high resistance. For example, in an air conditioning system with a new air volume of 1000 cubic meters/hour, a folded combined air filter with a rated air volume of 1200-1500 cubic meters/hour should be selected to ensure that the filter operates in a state of high efficiency and low resistance. Install flow control devices: Install flow control devices such as air volume regulating valves in the ventilation system to accurately adjust the airflow according to actual needs to avoid instability of filter resistance due to flow fluctuations. Regular maintenance and cleaning Replace the filter regularly: Replace the filter regularly according to the filter instructions and actual operation. In general, when the resistance of the filter reaches 1.5-2 times the initial resistance, it should be replaced in time to ensure the filtration effect and reduce the resistance. Clean the filter: For washable filters, clean them regularly. Dust and impurities on the surface of the filter material can be removed by compressed air back blowing and washing. For example, the filter is back blown with compressed air every 1-2 weeks, and washed every 1-2 months, which can effectively restore the performance of the filter and reduce the resistance. Optimized installation and system design Correctly install the filter: Install the filter according to the installation instructions, ensure that the filter is installed smoothly and sealed well, avoid air leakage or air short circuit, ensure that the air passes through the filter evenly, and reduce the problem of excessive local resistance. Optimize the design of the ventilation system: rationally design the layout and direction of the ventilation pipe, reduce the use of elbows, tees, and other pipe fittings, and reduce the flow resistance of air in the pipe, so that the air can enter the filter at a more stable flow rate, thereby reducing the resistance of the filter. |
