货舱加温热空气到底来自哪儿？

1931

空客手册真是受不了了，看了半天也没个结论，有没有知道的，后货舱加温系统的热空气来自哪儿？组件FCV下游还是上游，或者直接来自引气混合总管？

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waxt1330

引气总管，低于10度自动加温。

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1931

waxt1330 发表于 2020-04-02 14:06
引气总管，低于10度自动加温。

也就是不用开组件是吧，我看测试工卡要求先开组件。10度自动工作不对吧，还得看客舱过去的问题和选择的货舱温度之差，按需打开trim air valve.

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_中程

FCV上游，货仓加温系统有自己的压力调节活门、隔离活门，配平活门。。和空调完全不相干。。调压的低温空气来自于飞机内部。。

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奋斗的萧君

来自客舱，并不是直接吹到货舱里面，而是通过客舱地板格栅对货舱侧壁和地板加热，然后被再循环风扇抽吸，再利用，循环到空调系统里面

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1931

奋斗的萧君 发表于 2020-04-03 19:09
来自客舱，并不是直接吹到货舱里面，而是通过客舱地板格栅对货舱侧壁和地板加热，然后被再循环风扇抽吸，再利用，循环到空调系统里面

你说的是波音，对于空客你说的气是冷气路的，还有一路热气呢，我是问热气来自哪儿？

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oooo

1931 发表于 2020-04-03 20:04
你说的是波音，对于空客你说的气是冷气路的，还有一路热气呢，我是问热气来自哪儿？

前后货舱热引气都来自发动机热引气（组件上游） 只不过后货舱有单独的hot air控制电门 ，前货舱控制器用的是驾驶舱和客舱那个hot air控制电门

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1931

oooo 发表于 2020-04-19 13:25
前后货舱热引气都来自发动机热引气（组件上游） 只不过后货舱有单独的hot air控制电门 ，前货舱控制器用的是驾驶舱和客舱那个hot air控制电门

怎么会呢，驾驶舱和客舱的hot air电门和前货舱加温没关系，是空调区域温度控制系统的，前货舱加温是选装的，我们公司就没有。

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17732137307

D:\新建文件夹\360截图20200510175640681.jpg

17732137307

来自于气源总管，前后货仓的热气来源不一样，前货舱与客舱共用一个PRV，后货仓有专用的PRV,你可以看一下36章，就明白了，希望能帮助你

supermaxisme

不同构型的飞机不一样的。
看AMM 21-43-00-00 system D/O

Hot bleed-air from the APU bleed-air duct goes through the pressure regulating valve 11HC and the trim-air valve 12HC. It then mixes with air from the cabin before going to the AFT cargo compartment. This air enters the supply duct upstream of the inlet isolation-valve 34HN.
Proximity switches are installed at the AFT cargo-compartment door and at the bulk cargo-compartment door. These switches will inhibit the AFT cargo-compartment heating system if one of the doors is open. Both doors must be closed to enable the heating system to function.
The temperature control system regulates the amount of hot air added, to give the preselected temperature in the AFT cargo compartment. The heating controller 10HC, which gets information from the temperature sensors 13HC and 14HC, controls the system. These sensors are installed in the inlet duct (13HC) and at the extraction duct of the Cargo Compartment (14HC). The temperature of the air, which enters the supply duct, is controlled to a maximum of 70 DEG.C (158.00 DEG.F) by the trim-air valve 12HC.
When the duct temperature goes above 88 DEG.C (190.40 DEG.F), the FAULT light on the HOT AIR switch 16HC comes on and the pressure regulating-valve 11HC closes. This overheat condition is latched by the heating controller. When the duct temperature decreases to 70 DEG.C (158.00 DEG.F) the system can be reset. To do this you must push the HOT AIR switch 16HC OFF and then ON again.

前cargo用的是cabin air 和 trim air

xswimh

如图

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youyou_1

接楼上