| 摘要 |
<p>PURPOSE:To eliminate unnecessary changeover and to prevent the reduction of dehumidification performance by synchronizing the changeover of dehumidification and regeneration of a dehumidifying cylinder with the actuation of an air compressor and performing timer control in such a case that operation time of the compressor is reached to the preset time or above. CONSTITUTION:In a double-cylinder changeover type dehumidifier, when a governor GO is turned on by sensing the pressure of an air reservoir MR and an air compressor CO is started, preset time T is started and a solenoid valve MV1 is changed over to a feed position (a) and a solenoid valve MV2 is changed over to an exhaust position (b), and dehumidification is performed in a dehumidifying cylinder DR1 and regeneration is performed in the dehumidifying cylinder DR2. When the preset time T elapses, the solenoid valves MV1, MV2 are changed over, and dehumidification is performed in the dehumidifying cylinder DR2 and regeneration is performed in the dehumidifying cylinder DR1. When the pressure of the air reservoir MR is reached to an upper limit value of pressure control, the governer GO is turned off and the compressor CO is stopped and the solenoid valves MV1, MV2 are held in a state just before the stop of the compressor. When the pressure of the air reservoir is reduced to the lower limit value of pressure control, the governor is turned on and the compressor is operated, and dehumidification is performed in the dehumidifying cylinder DR2 and regeneration is performed in the dehumidifying cylinder DR1.</p> |
