Roots blower shall minimize pipeline pressure loss and other pressure losses

The Roots blower shall try to reduce the pipeline pressure loss and other pressure losses as much as possible. After the Roots blower gas flows through the throttling device, the pressure of the air flow decreases accordingly, that is, they lose the useful work of the fan. Because all this happens in the process of fan conveying gas, the energy of the fan is wasted.

The working point of the fan is the intersection of the performance curve of the fan at speed and the resistance characteristic line of the pipe network. When the fan is actually running, it will not stay at the design working point forever. It will change with the change of user demand or external conditions, that is, the fan actually works under different conditions.

In order to reach the target value of fan air pressure or air volume, it is necessary to manually control the fan or pipe network, which is also called regulation. Through adjustment, the fan can operate under stable conditions, which can not only meet the flow or pressure requirements of production, but also save energy.

In a word, the purpose of adjustment is to meet the performance requirements, expand the working conditions, make the fan energy saving and prevent surge. Fans can achieve the same goal through different adjustment methods, but the energy-saving effect is different.

How to cool Roots blower

1. If the fan is installed indoors. Conditional air conditioners can be installed. Don't worry about air conditioning and electricity. As the motor temperature rises by 10 degrees, the expected life is much lower. Therefore, it can reduce the life of indoor air conditioners, that is, equipment, and reduce the outlet temperature.

2. In some places, there are noise requirements. If the acoustic enclosure is installed, the door of the acoustic enclosure must be opened in summer. The acoustic enclosure forms a limited space, which increases the ambient temperature, which results in high temperature of the inhaled air and high outlet temperature. The inlet temperature of many Roots blowers with sound insulation covers exceeds 45 ℃ in summer.

3. Reduce pipeline bending, etc., and minimize pipeline pressure loss and other pressure losses.

4. Empirical formula: outlet temperature of Roots blower=inlet temperature (10-12) * pressure

The unit of pressure here is the meter column. For example, the water level is 6 meters. The pressure loss of the pipeline and the loss of the diaphragm (membrane of the aeration pipe of the sewage treatment plant) are 1 m. The ambient temperature is 30 ℃, and the outlet temperature is 100-114. academic degree. According to this formula, we can understand the significance of reducing the inlet temperature and outlet pressure.

5. There is also a soil method. The water tank (especially suitable for aquaculture, sewage treatment, etc.) can be installed at a distance of about 5 to 10 meters from the pipe outlet to reduce the outlet water temperature.