HRW

Wooden Pallet

Working Principle

Features

Wheel materials: the sensible rotary heat exchanger is made by aluminum foils of 0.05mm thickness. The total hygroscopic enthalpy heat recovery wheel  is made by aluminum foils coated with 3A molecular sieve of 0.04mm thickness. Molecuar sieve selectively absorbs moisture and expels odor by molecular lattice. .

Wheel construction: The mass of rotary heat exchanger is made of alternating layers of flat and corrugated aluminum foil to form the alveolate shape. Various height of corrugation is available. Flat surface ensures minimum leakage. Interior spokes are used to mechanically bond the rotor's laminations. These are threaded at the hub and welded at the periphery.

Laminar flow channels with self-cleaning, Double sealing sysem around rotor periphery and central beam.

Purge sector: ensures the cleaning effectiveness and ensures a leakage below 0.3% from exhaust air to outdoor air.

Bearing and lubrication: life-time lubricated ball bearing or roller bearing, and with covers at both sides. No maintenance needed under normal usage.

Driving system: The drive system is composed of motor, turbine-worm reducer, belt pulley and V belt. The motor is installed on the special bracket tensioning by the spring, it can ensure the gradually loose of V-belt in case of sudden stop.

Operation control: optional.

Application

Air to air rotary heat exchanger can be built in air handling unit(AHU) as a main part of heat recovery section. Usually side panel of the exchanger casing is unnecessary, except that bypass has been set in AHU.

It can also be installed in the ducts of ventilation system as a main part of the heat recovery section, connected by flanges. In this case, side panel of the exchanger is necessary to prevent leakage.

AHU on CRH 

Project Cases

Certification

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