The frequency conversion speed is widely used in energy saving of corrosion -resistant water pumps and fans. However, in practical applications, it is often not considered due to factors that affect their energy -saving effects. As a result, there is a greater blindness in choosing and use. Play. Taking the pump as an example, the symptomatic analysis and discussion are performed for some major factors that affect the speed regulation range and energy conservation effects. Based on this, it points out the scope of the transition speed regulation.

1 Variable frequency speed adjustment and water pump energy saving energy

The water pump energy saving cannot be separated from the reasonable adjustment of the starting point. Its adjustment method is nothing more than the following two: the adjustment of the tube characteristics curve, such as adjustment of the valve control; the adjustment of the pump characteristic curve, such as water pump speed adjustment, impeller cutting, etc. In terms of energy -saving effects, the method of changing the performance curve of the pump is much significant than changing the tube characteristic curve.

Therefore, changing the performance curve of water pumps has become the main way to save energy pump energy. The variable frequency speed adjustment has obvious advantages in changing the performance curve of the water pump and automatic control, so it is widely used. But at the same time, it should be noted that there are many factors that affect the energy saving effect of the frequency frequency speed regulation.

2 Factors affecting the range of frequency frequency speed adjustment

The adjustment of corrosion -resistant water pumps is generally a problem of deceleration. When the speed adjustment is used, the operating parameters of the original pump and the motor designed according to the industrial frequency state have changed greatly. In addition, factors such as the tube characteristic curve and the fixed speed pump running with the speed regulating pump will be right. The range of speed adjustment has a certain impact. Super -range speed regulation is difficult to achieve energy saving.