| 摘要 |
PROBLEM TO BE SOLVED: To operate stably in all patterns of operation by reducing the physical quantities of ventilation and air-conditioning installations for a turbine building in a nuclear power plant adopting a boiling water reactor. SOLUTION: In the ventilation and air-conditioning installations which has a structure where air is introduced from the outdoors of the turbine building 1 into a space 25 on an operation floor where a turbine 2 and a generator are installed by opening louvers 5a and 5b, the atmosphere in the space 25 on the operation floor is exhausted to the outdoors of the turbine building 1 by exhaust fans 6a, 6b and 6c, outside air is supplied by air blowers 16a, 16b and 16c for the ventilation below the operation floor and the atmosphere below it is exhausted from an exhaust stack 23 through a filter 20 by air-exhaust ventilators 22a, 22b and 22c, a duct 19 which partially exhausts the atmosphere in the space 25 on the operation floor from the exhaust stack 23 by the air-exhaust ventilators 22a, 22b and 22c that exhausts the whole turbine building 1 through the filter 20 during normal operation, under abnormal conditions and during periodical inspections is placed. COPYRIGHT: (C)2004,JPO&NCIPI
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