rotary heat recovery - Industrial purification heat recovery

Principle of rotary heat recovery fresh air unit

The main component of the rotary heat recovery fresh air unit is a disc-shaped heat storage wheel, which is made of aluminum foil wound into a honeycomb shape as the heat storage body. During operation, fresh air passes through one half circle of the heat exchanger, while exhaust air flows in the opposite direction through the other half circle. The heat storage wheel rotates continuously at a speed of about 10 revolutions per minute under the action of the power mechanism, and the heat storage body is constantly heated on the high-temperature half circle side, absorbing heat; When rotating to the low-temperature semicircle side, it is cooled and releases heat. This process repeats itself, recovering some of the energy (cold and heat) from the exhaust air into the fresh air. A moisture absorbing material is coated on the surface of the aluminum foil to create a fully heated rotor. The moisture in the airflow enters the moisture absorbing coating and is released when the rotor reaches another airflow. The composition of the rotor type heat recovery fresh air fan is to use the exchange of sensible and latent heat between the fresh air and exhaust air to recover energy, achieving energy conservation and maintaining good ventilation. In summer, the fresh air can be pre cooled and dehumidified, and in winter, it can be preheated and humidified.

Rotary/Wheel Energy Recovery Heat Exchanger

There are two types of rotary energy recovery heat exchangers:full heat type and sensible heat type.As a heat storage core,the fresh air passes through a semicircle of the wheel,while the exhaust air passes through another semicircle of the wheel,and the fresh air and exhaust air pass through the wheel alternately in this way.
in winter,the wheel regenerative body absorbs heat from the exhaust(wet),when moved to fresh air side,due to reasons of the poor temperature(wet),regenerative core body would release quantity of heat(wet),when to exhaust side,and continue to absorb the heat in exhaust quantity(wet).The energy recovery is achieved by such a repeated cycle,and the working principle is shown in the figure.During the summer cooling operation,the process is reversed.
When the full heat wheel runs,water molecules in the air are absorbed into the molecular sieve coating on the surface of the honeycomb,and when they are transferred to the other side,they are released due to the pressure difference between the water molecules.

The all-heat type runner USES the fresh air to exchange sensible heat and latent heat,so as to save energy and keep good ventilation in the room.The fresh air can be pre-cooled and dehumidified in summer and preheated and humidified in winter.

Industrial purification heat recovery

Tag Archive rotary heat recovery

Principle of rotary heat recovery fresh air unit

Rotary/Wheel Energy Recovery Heat Exchanger

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