| 摘要 |
PURPOSE:To enable the uniform cooling of an air duct system to be performed even in case that an operating fan is exchanged by a method wherein a plurality of dampers are arranged on an air feeding ring duct in the air conditioning duct system for use in cooling an equipment for storing nuclear reactor and then these dampers are controlled. CONSTITUTION:A total volume of air at a plurality of blowing outlets between the two fans is taken to control the dampers 15-20 in such a way that three air blowing values between the fans 9 and 10, fans 10 and 11, and fans 11 and 9, respectively. In this way, a complete uniform air volume at each of all the blowing-out ports may not be performed. However, an object of performing a uniform cooling can be attained sufficiently under a rough control operation described above. |
