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Judging the life of the filter bag usually requires the following factors:
Voltage difference: During the use of the filter bag, with the accumulation of particles, the resistance will gradually increase the resistance and form pressure difference. Monitor the pressure difference between the filter bag is an important indicator of judgment life. When the pressure difference reaches the setting of the set or the predetermined pressure difference, the filter bag is usually required.
Changes in liquid flow: Monitoring of liquid flow is also a way to judge the life of the filter bag. When the liquid flow decreases significantly and has no other abnormal reasons, it may indicate that the filter bag has reached a saturated state.
Decreased purification effect: The life of the filter bag is judged by monitoring the purification effect of the export liquid. If the suspension, particulate matter, or other pollutants in the export liquid increase significantly, to reach or exceed the standard limit value, then it may mean that the filter bag has failed and needs to be replaced.
Visual inspection: regularly check the filter bag to check whether there are obvious damage, scaling or color changes. If the physical state of the filter bag is found to change significantly, it may need to be replaced.
Experience and historical data: Filter bag manufacturers understand the general life range of filter bags based on previous experience and historical data. According to the past usage, formulate a reasonable replacement cycle or life forecast.
It should be noted that the life of the filter bag is affected by various factors, such as bag material, bag type, particulate matter properties, and operating conditions. Therefore, the above judgments are for reference only. In practical applications, it is recommended to formulate suitable life judgment criteria and replacement strategies based on the specific filtering systems and operating conditions, combine the manufacturer's advice and experimental data.
