| 摘要 |
PROBLEM TO BE SOLVED: To provide a ventilation device that is used for a container with a refrigeration machine for storing vegetables, fruits and flowering plants, and performs heat recovery.SOLUTION: In a container with refrigeration machine including a ventilation device 8 that inputs outside air at the time of ventilation or outputs inside air to perform ventilation, at least two ventilation ducts 3, 4 respectively have blower fans 5, 6 and heat reservoirs 1, 2. The container with a refrigeration machine controls the blower fans 5, 6 so that a step of inputting the outside air at one of the ventilation ducts 3, 4 and outputting the inside air at the other and a step of inputting the outside air at the other and outputting the inside air at the one are made inverse in a predetermined time interval Tn. |
