Raetts Reitz centrifugal fan has a lot of air volume adjustment methods, including inlet and outlet damper adjustment, vortex damper adjustment, inlet blade adjustment, wing adjustment, and number adjustment. Flap Wheels
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Raetts Reitz centrifugal fan has a lot of air volume adjustment methods, including inlet and outlet damper adjustment, vortex damper adjustment, inlet blade adjustment, wing adjustment, and number adjustment. For various types of fans, the energy saving effects vary greatly due to different adjustment methods. Below, Dongguan Ruitian Electromechanical "target=_blank> Electromechanical Technology Co., Ltd. introduces the air volume adjustment mode of the raetts Reitz centrifugal fan.
The air volume adjustment mode of the raetts Reitz centrifugal fan:
1, damper adjustment
The adjustment of the outlet damper of the Reitz centrifugal fan is to change the characteristics of the pipe network, rather than changing the characteristics of the fan. The air volume adjustment range is usually in all operating conditions below the fan's rated performance curve. Since the pipe network characteristics are changed by artificially increasing the pipe network resistance, the pressure drop consumes additional resistance generated when the small damper is closed, and the economical adjustment is poor. The inlet damper is adjusted. When the piping is installed on the suction side of the fan, the adjustment principle is the same as that of the outlet damper; but when the piping is installed on the exhaust side of the fan, it changes the inlet pressure of the fan to change the temperature of the inlet. The performance curve, so the adjustment economy is good; and the vortex damper adjustment is to change the characteristics of the Leitz fan by changing the outlet area of ​​the fan. Compared with the reduction of the air volume, the power variation is small and the energy saving is not significant. These two adjustments can, in principle, be used in all operating conditions under the rated curve to shift the surge point to a small flow direction and, therefore, are widely used on a Reitz fan which generally has a fixed rotational speed.
2, imported blade adjustment
Imported blade adjustment is to change the airflow direction of the suction impeller by adjusting the blade to change the performance curve of the fan. The positive swirling adjustment of the inlet airflow of the fan can realize all the working conditions below the performance curve when the inlet guide vane angle is zero. The negative winding adjustment of the inlet airflow can increase the pressure and flow of the Leitz blower, but the adjustment range has certain limits. . Since the inlet blade adjustment has a wide adjustment range and high economy, and can be automatically adjusted, it is widely used for fans.
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