Fully automatic cleaning system for rotors of rotary heat exchangers intended for use in highly contaminated environment. During rotary heat exchangers operation, the rotor channels are subject to gradual clogging by dust, dirt, grease, sticky aerosols etc., even if good quality filtration is used. This not only limits RHE performance, but also contributes to increasing pressure loss in the device. In extreme cases clogging may even damage the rotor. For operations, such as paint shops, rubber or heavy industries, where the level of contamination is very high, Kastt offers fully automatic cleaning function for rotors.

Cleaning cycle control

The cleaning device may be supplied without any control system or fitted with an independent automatic control unit.

No control – this option is especially suitable for integrating the cleaning device into air-handling system controls that will be used to control the cleaning functions.

Automatic control – the device is started either manually (operator starts the cleaning cycle by pressing the button on the control panel) or the device may be incorporated into a complex measurement and regulation system. The RHE is fitted with pressure sensors that will – upon reaching the predefined level of pressure loss – initiate the rotor cleaning process. Valves with compressed air and water open automatically. With every rotor revolution the nozzle unit is shifted by the width of the cleaning path. At the same time the control unit slows down the rotor speed in order to achieve the optimum perimeter speed for cleaning the relevant area. As soon as the whole travel length is passed, the valve with water is closed and compressed air is used to dry the rotor completely (for a preset duration of time). Then, as soon as the end position is achieved, the compressed air valve is closed and the device returns to “ready” mode. The KASTT control unit is placed in a separate plastic distribution box.

Main benefits

  • Rotor cleaning during air-handling system operation
  • Fully automatic cleaning process
  • Activation with no intervention by operator
  • Variability of cleaning device location
  • Adjustable rotor cleaning intensity

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