Improve cooling tower gear drive reliability

摘要

Cooling tower applications can present a unique dilemma. Large cooling towers typically contain a number of cells; each cell contains a fan unit or fan "train" made up of a drive motor, gearbox and the actual cooling fan assembly (Fig. 1). Because they are identical, the motor-gearbox-fah trains in a given cooling tower are sometimes collectively viewed and treated as mass-produced "commodity" items. Suffice it to say that commodity items often differ from thoughtfully engineered and reliability-focused products.