| 摘要 |
PURPOSE: A waste heat collecting ventilation device is provided to collect hot air during ventilation and blow the hot air to the indoor space. CONSTITUTION: A waste heat collecting ventilation device comprises a fan(1), an air flowing space(11), a fan supporting frame(2), a fan protection case front panel(3), a fan protection case back panel(6), an air inflow blocking member(7), and an air discharge blocking member(8). The fan blade increase heat exchanging efficiency for collecting waste heat by being operated repeatedly. The front portion and the rear portion of a fan protection case are blocked to prevent the inflow or the outflow of the air. |
