电子舱通风中间状态必须在空中吗？地面能看到吗？

紫魔戒 · 发表于 2014-12-26 10:29:44

中间状态
见图在空中，当环境温度较高或舱内有烟雾，系统就工作在中间状态。即在闭环状态的基础上，将蒙皮出口活门上的小风门打开，将部分热空气或烟雾排出到机外。电子舱通风中间状态必须在空中吗？地面能看到吗？电子舱通风中间状态必须在空中吗？地面能看到吗？电子舱通风中间状态必须在空中吗？地面能看到吗？
捕获.JPG

zqking · 发表于 2014-12-26 14:43:03

地面貌似不能半开，我基本没有怎么见过，半开的话一般下面的喇叭会叫，我见过的半开是有故障的时候。手册里这样写的The skin air-outlet valve 22HQ is installed in the fuselage skin on the forward-lower right side. This valve is an electrically-operated single-flap valve that includes a second smaller flap. When the aircraft is on the ground, the valve is fully open. In flight, the valve is fully closed.
The smaller flap opens during the flight:
-    When the skin temperature is more than 34 deg.C (93.20 deg.F) (partially open circuit)

-    If there is smoke in the avionics ventilation system

-    If the Avionics Equipment Ventilation Computer (AEVC) 10HQ does not operate correctly

-    If the skin temperature sensor is incorrectly calibrated or does not operate.

On the ground, if the valve does not close after the take-off sequence signal, the ground crew can manually close it. Before the manual closing of the valve, the crew must operare toggle switch of the valve to isolate it electrically.