| 摘要 |
<p>PURPOSE:To contrive the temperature control of the air for cooling use by a method wherein the title device is provided with a tank for introducing the external cooling air and the warmed outside air to adjust the introducing flow rates of the cooling air and the outside air. CONSTITUTION:Signals from temperature sensors 9 to 11 are sent to a control part 15 through a comparator 14. For warming the air for cooling use in a tank 3 for cooling air feeding use, an exhaust valve 12 is opened to its full width by a command from the control part 15 to an actuator 16 for exhaust valve use. Reversely, for driving flow rate control fins 8 in an OFF-state so as to restrain the flow rate of the external cooling air, a command is issued to an actuator 17 for fin drive use as well from the control part 15. The temperature of the air for cooling use in the tank 3 rises and with its proximity to a setting temperature, a command is issued to the actuators 16 and 17 from the control part 15 so as to drive the valve 12 in its turned-OFF direction and the fins 8 in their turned-ON direction. If the temperature of the external cooling air reaches the setting temperature, the valve 12 is turned-OFF to prevent an evacuation from being fed back. By such a way, the temperature control of the air for cooling use can be conducted effectively.</p> |
