Dehumidifying system

A dehumidifying system that feeds process air to a sorbent rotor to cause moisture within the process air to be adsorbed onto a sorbent of the sorbent rotor to dehumidify the process air, and causes regenerating air to flow onto the sorbent of the sorbent rotor which has adsorbed moisture to regenerate the sorbent, the dehumidifying system comprising:

• a sorbent rotor for a first processing step that dehumidifies the process air;
• a sorbent rotor for a second processing step that receives processed air which has been dehumidified by the sorbent rotor for the first processing step and dehumidifies the processed air as the process air;
• a circulating purging channel;
• and
• a regenerating air channel, wherein
• the sorbent rotor for the second processing step comprises a sorbent rotor having a rotational passage region that is sectioned into four regions including a processing region where the process air is dehumidified, a regenerating region where the sorbent is regenerated, a first purging region provided between the regenerating region and the processing region upstream from the regenerating region with respect to a rotational direction of the sorbent rotor, and a second purging region provided between the regenerating region and the processing region downstream from the regenerating region in the rotational direction of the sorbent rotor,
• the circulating purging channel circulates air such that the air alternately passes through the first purging region and the second purging region, and
• the regenerating air channel feeds at least a portion of the processed air which is processed by the sorbent rotor for the first processing step to the regenerating region of the sorbent rotor for the second processing step as regenerating air.

A dehumidifying system that feeds process air to a sorbent rotor to cause moisture within the process air to be adsorbed onto a sorbent of the sorbent rotor to dehumidify the process air, and causes regenerating air to flow onto the sorbent of the sorbent rotor which has adsorbed moisture to regenerate the sorbent, the dehumidifying system comprising:

• a sorbent rotor for a first processing step that dehumidifies the process air;
• a sorbent rotor for a second processing step that receives processed air which has been dehumidified by the sorbent rotor for the first processing step and dehumidifies the processed air as the process air;
• a circulating purging channel;
• and
• a regenerating air channel, wherein
• the sorbent rotor for the second processing step comprises a sorbent rotor having a rotational passage region that is sectioned into four regions including a processing region where the process air is dehumidified, a regenerating region where the sorbent is regenerated, a first purging region provided between the regenerating region and the processing region upstream from the regenerating region with respect to a rotational direction of the sorbent rotor, and a second purging region provided between the regenerating region and the processing region downstream from the regenerating region with respect to the rotational direction of the sorbent rotor,
• the circulating purging channel circulates air such that the air alternately passes through the first purging region and the second purging region,
• the sorbent rotor for the first processing step comprises a sorbent rotor having a rotational passage region that is sectioned into a processing region where the process air is dehumidified, a regenerating region where the sorbent is regenerated, and a purging region provided between the regenerating region and the processing region where the sorbent is precooled prior to entering the processing region, and
• the regenerating air channel feeds at least a portion of air at a purge outlet which has passed through the purging region of the sorbent rotor for the first processing step to the regenerating region of the sorbent rotor for the second processing step as regenerating air.