The air volume of Roots blower can be adjusted according to the user's needs, and the adjustment methods can be divided into three categories: adjusting the motor speed, adjusting the frequency converter, and adjusting the bypass valve. Although many users know the adjustment methods, they are still prone to problems in actual operation. In addition, the adjustment of the valve must pay attention to the bypass valve, the outlet valve, or other pipes, If the adjustment is wrong, it will not adjust the air volume, but will also lead to motor damage.
The best way is to adjust the speed by frequency conversion, reduce the motor speed, which can not only reduce the air volume, but also save energy. It is particularly noted that if the Roots blower control cabinet is installed, it is better to purchase it from the Roots blower manufacturer. The control cabinet of Roots blower is different from the frequency converter of centrifugal fan and pump. The fan pump type frequency converter is equipped with Roots blower, which may fail to start when the pipeline is under pressure. Not recommended. It is recommended to purchase the inverter directly from the fan manufacturer. These Roots fan manufacturers, Beside and Kingo, can directly deliver the inverter. If no frequency converter is installed, one side of the air duct can be opened to let off some air volume. This is a bit wasteful, but you can adjust the required air volume.
Incorrect adjustment of air volume posture
1. Regulating outlet valve or pipeline
After the roots blower is installed, the air volume cannot be adjusted by adjusting the outlet valve and pipeline. The reason is that when the outlet pipeline or valve is adjusted, the negative pressure of the roots blower will change, affecting the normal use of the blower. Excessive overpressure may cause damage to the blower.
2. Adjust fan "blade"
In Roots blower industry, the "blade" of the fan is called "impeller", and the word of the blade is mostly used in the centrifugal fan industry. As long as the blade is mentioned in Roots blower industry, the content of the article mostly comes from the technical data of the centrifugal fan. The reason is that the working principle and structure of the centrifugal fan and Roots fan are different, The leaves of the centrifugal fan are in sheet shape, while the rotor of Roots fan is in the form of wheel.
3. Intake air flow regulation
For air inlet flow regulation, someone proposed to adjust the air volume by changing the air inlet, but if the air volume of Roots blower is reduced, how to adjust the inlet silencer if the air volume is increased? The Roots blower can increase the air volume through two-stage series connection, which is completely feasible. However, the structure of single-stage Roots blower is very different from that of two-stage Roots blower. Adjusting the inlet air volume to reduce the air volume will cause waste of resources. Therefore, it is unreasonable to adjust the air volume at the inlet of Roots blower. If it is reasonable, only replace the blower.
I believe that after reading the above, you should also know how to adjust the excessive air volume of Roots blower. I hope it will help you.
Text label: Roots blower
Link to this article: //wuhanzhcs.com/html/news/n02/631.html
