Air Preheater Solutions
Renold Gears designs, manufactures and services standard and customised Air Preheater drives.
Design options include:
Renold designs options for centrally driven Air Preheaters, including worm and helical gearing configurations, which can be designed as drop-in replacements for originally supplied units, or designed to the OEM's specification for new applications. A central design has a solid output shaft and mounts directly on to the main rotor shaft of the APH, secured by means of a shrink disc.
Helical Worm Gear Drives
Renold offers a multiple input helical-worm-worm with hollow bore output for direct mount to the drive shaft or it can be supplied with an optional Renold Hi-Tec coupling. It can be direct mounted to multiple prime movers including AC, DC or air motors. The drives can be manufactured in a range of sizes to suit power stations from 200 to 1200 MW. Different torque requirements are dependant on the size of the power station.
|Peripheral Drives |
Renold supplies options for peripherally driven air preheaters. A peripheral drive is mounted onto the extremity of the APH. It is supplied with a solid output shaft onto which a spur gear is mounted, which drives the APH via an externally mounted girth ring gear.
Bevel Helical Gear Drives
Renold's bevel helical solution is a multi stage design with the option of a solid output shaft, either vertically up or down, and with provision for multiple inputs and integrated holdbacks. The drives include a self-contained lubrication system. They can be either gear pump or electric motor driven and can be supplied with separately mounted gear motors for barring. The main motor is driven by a fluid coupling for soft starts. The drives can be manufactured in a range of sizes to suit power stations from 200 to 1200 MW.