Aerator

摘要

The present invention relates to an aerator apparatus. It comprises an aerator with at least one blade driven around a central axis, and a motor coupled to the at least one blade such that the operation of the motor in a first or a second direction results in the operation of the blade in a corresponding first or second direction. The aerator apparatus further comprises a control device comprising a monitoring mechanism to monitor the current drawn by the motor; and a control mechanism to control the direction of the motor. The monitoring mechanism detects a certain value of the current drawn by the motor and the control mechanism is adapted to direct the motor and coupled at least one blade operating in the first direction to do at least one of (i) stop and/or (ii) operate in the second direction. In preferred embodiments, the monitoring mechanism monitors the current drawn by the motor in relation to one or more of the voltage and frequency applied to the motor. An advantage of certain embodiments of the present invention is that they provide an economical unblocking solution for wastewater aerators where the control device detects a change in the current drawn by the motor, and instructs the motor to direct the aerator into a clean cycle to try to dislodge debris built up during normal flow, when the aerator is running clean.

主权项

1. An aerator apparatus comprising:
an aerator with at least one blade driven around a central axis, and a motor coupled to the at least one blade such that operation of the motor in a first or a second direction results in operation of the blade in a corresponding first or second direction; a control device comprising a monitoring mechanism to monitor the current drawn by the motor; and a control mechanism to control the direction of the motor; wherein when the monitoring mechanism detects a certain value of the current drawn by the motor, the control mechanism is adapted to direct the motor and coupled at least one blade operating in the first direction to do at least one of (i) stop and/or (ii) operate in the second direction.