The gas volume per meter of microporous aeration tube is not a fixed value, but is influenced by various factors, as follows:
1、 Main influencing factors
1. Design parameters: The design parameters of the microporous aeration tube determine its basic air flow rate.
2. Pore size: The pore size of each micropore in the microporous aeration tube will affect its airflow rate. The larger the aperture, the greater the air flow rate usually; On the contrary, the smaller the aperture, the smaller the air flow rate.
3. Pore density: The number of micropores in the microporous exposure tube also affects its airflow rate. The higher the pore density, that is, the more micropores there are, the larger the air flow rate is usually.
4. Work pressure: Within the range, as the work pressure increases, the gas volume of the microporous aeration tube will gradually increase. However, when the working pressure is too high, gas will not be able to enter the interior of the microporous aeration tube, resulting in a decrease in gas volume.
5. Gas liquid ratio: The ratio of the volume of gas entering the microporous aeration tube to the volume of liquid per unit time, usually measured in Nm3/m3. Different gas-liquid ratios will have an impact on the gas volume of microporous aeration tubes. In general, the larger the gas-liquid ratio, the greater the gas volume in the microporous aeration tube.
2、 Gas volume range
According to different design parameters and working environments, the air volume per meter of microporous aeration tubes is usually between 0.20.4 cubic meters per hour (or 0.31.2 standard cubic meters per hour, Nm3/h). However, please note that this is only a rough range, and the specific values need to be calculated and determined based on the actual situation.
3、 Considerations in practical applications
In practical applications, it is necessary to comprehensively consider factors such as the water depth, oxygen demand, and airflow transmission distance of the aeration tank, and select appropriate aeration tube models, quantities, and spacing. In addition, it is necessary to regularly clean and maintain the aeration tube to ensure its normal operation and service life.
In summary, the gas volume per meter of microporous aeration tubes is a variable influenced by multiple factors. When selecting and using microporous aeration tubes, comprehensive consideration and calculation should be made based on specific application scenarios and requirements.
