For some relationships between different flows, we will divide the adjustment mode into several different practices, that is, the adjustment mode has little impact on the energy-saving effect, and even because of the existence of the adjustment device not only does not save energy, but consumes more work.The variable speed adjustment curve is close to the ideal curve. Therefore, frequency conversion speed regulation mode is superior, especially the energy-saving scheme using frequency conversion motor speed regulation is better, but the tunnel fan needs to increase frequency conversion device.

Adjust the fan is to make the tunnel fan wind pressure or air volume to meet the standard, and manual control of the fan. Through effective adjustment, the fan can not only meet the requirements of flow or pressure in production, but also save energy to a large extent when the fan can work stably. While users adopt different methods of adjustment, they all achieve the same goal, but with different results.

The choice of adjustment mode is not only related to the use effect of tunnel fan, but also has great influence on the energy saving of the fan. Therefore, choosing the appropriate adjustment mode can achieve the energy-saving effect under the premise of maintaining the same effect of the fan. Only in this way can we improve the use efficiency of the fan, achieve high efficiency and energy saving, better protect the tunnel fan and extend the use efficiency.