| 摘要 |
PROBLEM TO BE SOLVED: To reduce the entering amount of mist or powdery material from the inside of a reserving warehouse into a duct by a method wherein a net is driven to shake down the mist adhered to the net for removing the mist entering a suction duct for the air conditioning of the inside of the reserving warehouse. SOLUTION: When an air conditioner is used to obtain a condition suitable for snow making or snow reserving in the temperature, humidity atmosphere or the like of the internal space 1A of a reserving warehouse 1, air in the internal space 1A is sucked into a suction duct 3. In this case, the front surface of inlet port of the suction duct 3 is covered by a net 4 whereby mist or powder body, flying in the internal space 1A, is adhered to the net 4 and the entering of the same into the suction duct 3 can be precluded. When the mist or the powder body is adhered to the net 4 in some degree, the suction of air through the suction duct 3 is stopped and a winch 54 for a shake down means 5 is driven to move a regulating unit 51 downward through a wire 53 and shake down the mist or the like, adhered to the net 4. |
