How to quickly calculate the aeration rate and Roots blower model for sewage treatment
Quickly calculating the aeration rate for sewage treatment and selecting the Roots blower model involves multiple steps and parameter considerations. Here is a simplified method to guide this process:
1、 Quickly calculate the aeration rate for sewage treatment
The calculation formula for aeration rate is usually:
Aeration rate (Q)=aeration frequency (n) × total aeration time (T) × single aeration rate (Qa)
Among them:
1. Aeration frequency (n): The frequency of aeration per minute of the aeration device needs to be determined based on the wastewater quality, sewage load, and the type and performance of the aeration device.
2. Total aeration time (T): The total working time of the aeration device, usually consistent with the operating time of the wastewater treatment equipment.
3. Single aeration rate (Qa): The amount of air supplied by a single aeration device for each aeration needs to be calculated based on the performance parameters of the aeration equipment.
For example, assuming that the aeration frequency of the wastewater treatment equipment is 100 times/minute, the total aeration time is 60 minutes, and the single aeration amount is 10m3/time, the calculation of aeration amount is as follows:
Aeration rate (Q)=100 times/minute x 60 minutes x 10m3/time=60000m3
2、 Quickly select Roots blower model
1. Determine air volume and pressure:
Based on the calculated aeration rate (i.e. required air volume) and the system's requirements for air pressure (usually related to factors such as aeration tank and pipeline resistance), determine the required air volume and pressure for the Roots blower.
2. Check the performance parameters of the fan:
Refer to the performance parameter table of Roots blower and find the fan model that meets the required air volume and pressure.
3. Consider energy efficiency and conservation:
On the premise of meeting the requirements of air volume and pressure, choose a fan model with high energy efficiency and good energy-saving effect to reduce operating costs.
4. Choose manufacturer and service:
Choose manufacturers with good reputation and service for purchasing and technical guidance, ensuring that the selection and use of fans meet actual needs, and receive timely and effective maintenance and upkeep during use.
5. Calculation and verification:
Based on the performance parameters of the selected fan, calculate its actual energy consumption, efficiency, etc. during operation, and compare and verify it with the expected target to ensure a reasonable selection.
matters needing attention
1. When calculating the aeration rate, factors such as wastewater quality, sewage load, and the performance of the aeration device should be fully considered to ensure the accuracy of the calculation results.
2. When choosing a Roots blower model, in addition to considering air volume and pressure requirements, attention should also be paid to performance indicators such as energy efficiency, noise, vibration, as well as the manufacturer's after-sales service and technical support capabilities.
In summary, the rapid calculation of sewage treatment aeration rate and the selection of Roots blower models require comprehensive consideration of multiple factors, and the accuracy and rationality of the selection can be ensured through reasonable calculations, consulting parameter tables, considering energy efficiency and conservation, and selecting reputable manufacturers.
