The invention discloses an
airflow accelerator for a
compressed air dryer, and relates to the technical field of
airflow adjusting.The
airflow accelerator comprises an outer shell, a motor is assembled outside the outer shell, an air conveying
pipe is arranged in the outer shell in a penetrating mode, a driving shaft of the motor is in transmission connection with an
impeller located outside the air conveying
pipe, and the airflow accelerator further comprises a reducing mechanism; the reducing mechanism comprises an accelerating
pipe a slidably connected to the interior of the air conveying pipe, a telescopic
assembly and a flow guide mechanism are arranged at the top of the accelerating pipe a, the flow guide mechanism comprises a top plate fixed between the inner wall of the outer shell and the outer wall of the air conveying pipe, and a plurality of accelerating pipes b communicating with the interior of the air conveying pipe are fixedly connected to the air conveying pipe; the length of the telescopic
assembly can be adaptively adjusted along with the change of the flow velocity of the airflow, so that the device is suitable for the airflow at different flow velocities, the flow velocity of the airflow and
energy loss in the acceleration process are balanced, unnecessary
energy loss is avoided, and the acceleration effect of the airflow is guaranteed.