公开(公告)号：US20150265979A1

公开(公告)日：2015-09-24

申请号：US14662499

申请日：2015-03-19

Applicant: Clearwater Controls Limited

Inventor： Graham McIvor

IPC: B01F3/04 ,  C02F1/74

CPC classification number: B01F3/04773 ,  B01F15/00019 ,  B01F15/00201 ,  B01F2015/00642 ,  C02F1/74 ,  C02F3/16 ,  C02F2209/006 ,  Y02W10/15

Abstract: 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.

Abstract translation: 曝气装置技术领域本发明涉及曝气装置。 它包括具有围绕中心轴线驱动的至少一个叶片的曝气器和耦合到所述至少一个叶片的马达，使得所述马达在第一或第二方向上的操作导致所述叶片在相应的第一 或第二方向。 曝气装置还包括控制装置，该控制装置包括用于监视由电动机吸取的电流的监测机构; 以及控制电机方向的控制机构。 监测机构检测由电动机吸取的电流的一定值，并且控制机构适于引导电动机并联接至少一个在第一方向上操作的叶片，以进行（i）停止和/或（ii）中的至少一个 ）在第二个方向上运行。 在优选实施例中，监控机构监测电动机相对于施加到电动机的电压和频率中的一个或多个所绘制的电流。 本发明的某些实施例的优点在于，它们为废水曝气器提供经济的解封装解决方案，其中控制装置检测由电动机吸取的电流的变化，并且指示电动机将曝气器引导至清洁循环以尝试 在正常流动期间，当充气器运行清洁时，排除积木。

公开(公告)号：US12212265B2

公开(公告)日：2025-01-28

申请号：US15017987

申请日：2016-02-08

Applicant: Clearwater Controls Limited

Inventor： Graham McIvor

IPC: H02P29/028 ,  F04B49/02 ,  F04D7/04 ,  F04D15/00 ,  G05D7/06 ,  H02P29/032

Abstract: This invention relates to programmable electronic device that prevents wastewater submersible and non-submersible pumps as well as viscous pumps from ragging therefore avoiding pump blockage. In one aspect the invention provides a pump apparatus comprising a pump and a control device for a pump, the pump being a mechanically switched pump such as a direct online/ star delta pump and capable of being operated in a forward and a reverse direction, the control device comprising: a monitoring mechanism to monitor the torque of the pump, a control mechanism to control the direction of the pump and being capable of selectively directing the pump to (i) stop, (ii) operate in a reverse and (iii) operate in a forward direction; wherein the control mechanism is adapted to control the pump to do at least one of (a) stop and (b) operate in a reverse direction when the monitoring mechanism detects a pre-determined value in the torque of the pump. The device is programmed to provide anti-ragging functionality whilst providing traditional electrical pump protections. The physical size of the device has been minimised which enables great use and, significantly, retro-fitting of the product.