To solve a problem that a conventional closed module can adjust the volume of air flowing in the module but can not change the direction of the air flow.
This closed experimental facility is characterized by disposing an air supply or exhaust duct 11 and an air exhaust or supply duct 11 on a suction side and a discharge side at mutually faced positions in the closed module 1, allowing the air supply or exhaust duct 11 and the air exhaust or supply duct 11 to communicate with a blower chamber 2A having a blower 2 through flow ducts 12, 13 on discharge side and suction side, disposing check valves 51, 52, 71, 72 in the flow ducts on the suction side and the discharge side, and switching the operation of the check valves 51, 72 on one side and the operation of the check valves 52, 71 on the other side so that air flows circulated in the closed module are directed in opposite directions, respectively.
SUGAWARA SATOSHI
KOAKUTSU YUJI
SHIMIZU SATOSHI
NITTA KEIJI
NITTA KEIJI