320系列机组课程通风系统操作

航空

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航空

VENTILATION MENU System Operation 1/17
VENTILATION System Operation 2/17
There are two ventilation systems on the A320, the
lavatory and galley system , and the avionics ventilation
system.
MENU
VENTILATION System Operation 3/17
The lavatory and galley system is completely automatic.
Cabin Air is passed through the lavatory and galleys areas,
and is removed from these areas by an extraction fan. The
fan pulls air into an extraction duct and then releases it
overboard through the outflow valve.
Note: The extraction fan runs continuously provided electrical
power is available.
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CABIN AIR
MENU
EExxttrraaccttiioonn FFaann
VENTILATION System Operation 4/17
There are no controls or indications associated with the
lavatory and galley ventilation system.
Now let’s look at the Avionics Ventilation System.
MENU
EExxttrraaccttiioonn FFaann
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CABIN AIR
VENTILATION System Operation 5/17
Avionics
Equipment
The Avionics ventilation system provides cooling air for the
avionics equipment.
This equipment includes the avionics compartment, the
flight deck instruments, and the circuit breaker panels.
Let’s now look at how the system works.
Avionics
Compartment
Flight Deck
Instruments
Circuit Breaker
Panels
MENU
VENTILATION System Operation 6/17
Air is circulated by two fans, a blower and an extractor.
These fans operate continuously as long as the aircraft
electrical system is supplied.
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Avionics
Equipment
MENU
VENTILATION System Operation 7/17
On the ground, provided the ambient air temperature is
above a specified value, air is taken from outside the
aircraft via a skin air inlet valve.
Avionics
Equipment
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Skin Air
Inlet Valve
MENU
VENTILATION System Operation 8/17
Avionics
Equipment
The air is blown through the Avionics Equipment, extracted
and then discharged overboard via an Extract Valve.
This is known as OPEN CIRCUIT configuration.
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MENU
VENTILATION System Operation 9/17
If ,on the ground, the ambient air temperature is below a
specified value, the valves will be closed and air from within
the aircraft is used. A skin heat exchanger is used to cool
the circulated air.
This is known as CLOSED CIRCUIT configuration.
Avionics
Equipment
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MENU
Skin Heat
Exchanger
VENTILATION System Operation 10/17
The skin air inlet valve is located on the left side of the
aircraft, and the extract valve is located on the right.
Both of these valves are inspected during the pre-flight
walk around for damage or obstruction.
Skin Air
Inlet Valve
EExxttrraacctt VVaallvvee
MENU
VENTILATION System Operation 11/17
Normally, from the beginning of take off until landing, the
system is in a CLOSED CIRCUIT configuration.
In warm ambient conditions the system may go to an
intermediate configuration when the aircraft is airborne. A
small internal flap on the extract valve opens to exhaust
some of the heated air overboard.
Avionics
Equipment
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MENU
VENTILATION System Operation 12/17
A section of the ECAM CAB PRESS page displays
avionics ventilation system information.
MENU
VENTILATION System Operation 13/17
The VENT, INLET, and EXTRACT indications provide
information on the state of the inlet and extract systems.
Normally they remain white.
MENU
VENTILATION System Operation 14/17
The position of the Inlet and Extract valves can be seen.
In the example shown the valves are open. The avionics
ventilation system is in an OPEN configuration, and in most
cases this is the indication that you will see when the
aircraft is on the ground.
MENU
VENTILATION System Operation 15/17
In this example, the valves are closed and the avionics
ventilation system is in a CLOSED configuration.
This is the normal in-flight configuration.
MENU
VENTILATION System Operation 16/17
When the small internal flap on the extract valve is open the
extract valve indication is in an intermediate position. This
is the INTERMEDIATE configuration and this configuration
can only occur in flight.
MENU
VENTILATION System Operation 17/17
On the overhead panel there is a VENTILATION panel that
contains two pbs associated with the ventilation system.
During the pre-flight cockpit scan, you should confirm that
these switches are in their lights out position. The avionics
ventilation system will then operate automatically, and
require no pilot input.
MENU NEXT
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VENTILATION MENU System Operation 18/17
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EXIT
AUDIO GLOSSARY FCOM
RETURN
LAVATORY & GALLEY
VENTILATION
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EECCAAMMIINNDDIICCAATTIIOONNSS
VVEENNTTIILLAATTIIOONNCCOONNTTRROOLLPPAANNEELL

bocome

非正常操作

songsimple

谢谢分享 好东西拿去学习了

tissle

好资料，学习中。。。

diguo

恩。好东西。好好学习一下。