Rotary Heat Exchanger, Heat recovery wheel

Wheel Materials


The sensible heat wheel is made by aluminum foils of 0.05mm thickness.
And the total heat wheel is made by aluminum foils coated with 3A molecular sieve of 0.07mm thick- ness.

Laminar Flow Channels
The wave type structure of the wheel forms narrow chan- nels in the direction of air flow. The air flow forms a laminar flow inside the wheel when passing through it. When the wheel rotates, dust won’t accumulate on the channel since outdoor air and exhaust air respectively flow through the channels from two directions. This is called self-cleaning.



Double Sealing System
Unique double-sealing system is installed around the ro- tor periphery and along the central beam. The sealing materials are soft and dense of small friction and longer service life.


Purge Sector
Because of the structure of rotary heat exchanger, the outdoor air and exhaust air will mix. According to the air velocity, wheel rotating speed and direction, purge sector is installed to prevent the exhaust air from entering the outdoor air. The purge sector enables a small fraction of outdoor air to blow back the exhaust air in the alveolate holes to its side. A minimum pressure difference of
200Pa between the outdoor air side and the exhaust air side is required to ensure the cleaning effectiveness. With all conditions provided, the sector can ensure a leakage
below 0.3% from exhaust air to outdoor air.