320系列机组课程增压系统

航空发表于 2011-3-20 08:37:52

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航空发表于 2011-3-20 08:38:31

PRESSURIZATION MENU System Presentation 1/32 PRESSURIZATION System Presentation 2/32 The pressurization system on the A320 normally operates automatically to adjust the cabin altitude and rate of change of altitude to ensure maximum passenger comfort and safety. MENU PRESSURIZATION MENU System Presentation 3/32 PRESSURIZATION MENU System Presentation 4/32 PRESSURIZATION MENU System Presentation 5/32 PRESSURIZATION System Presentation 6/32 The pressurized areas are; • the cockpit • the avionics bay • the cabin • and the cargo compartments. MENU PRESSURIZATION System Presentation 7/32 Pack 1 Pack 2 The Pressurized Areas The concept of the system is simple. Air is supplied from the Air Conditioning Packs to the pressurized areas. MENU PRESSURIZATION System Presentation 8/32 The Pressurized Areas Outflow Valve An Outflow valve is used to regulate the amount of air allowed to escape from the pressurized areas. Pack 1 Pack 2 MENU PRESSURIZATION System Presentation 9/32 CCaabbiinnPPrreessssuurreeCCoonnttrroolllleerrss Automatic control of the outflow valve is provided by two Cabin Pressure Controllers. Each controller has an electric motor to move the outflow valve. CPC 1 CPC 2 Electric Motor Electric Motor Pack 1 Pack 2 MENU PRESSURIZATION System Presentation 10/32 SYS 1 SYS 2 A controller/ motor combination is known as a system . Only one system will operate at any one time with the other system acting as backup. CPC 1 CPC 2 Pack 1 Pack 2 MENU PRESSURIZATION System Presentation 11/32 A third motor is installed for use in the event of both automatic systems failing and requires a manual input to open or close the outflow valve. Manually Controlled Motor MAN Pack 1 Pack 2 MENU PRESSURIZATION System Presentation 12/32 SYS 1 SSaaffeettyyVVaallvveess To avoid excessive cabin differential pressure safety valves are installed. Pack 1 Pack 2 MENU PRESSURIZATION System Presentation 13/32 Cabin Differential Pressure Let us look at the operation of the outflow valve for an aircraft in cruise and what happens to cabin differential pressure, cabin altitude, and Cabin Vertical speed. We will start with Cabin Differential Pressure. If the outflow valve is closed, or only allowing a small amount of air to escape, then the cabin differential pressure will increase. SYS 1 Pack 1 Pack 2 MENU PRESSURIZATION System Presentation 14/32 Now let’s look at what happens to Cabin Altitude . If the outflow valve is closed, or only allowing a small amount of air to escape, then the Cabin Altitude will descend. SYS 1 Pack 1 Pack 2 Cabin Altitude MENU PRESSURIZATION System Presentation 15/32 Cabin Altitude We can also see what the cabin is doing by reference to vertical speed. When the outflow valve closes the cabin altitude will decrease with a Vertical Speed. SYS 1 Cabin Vertical Speed Pack 1 Pack 2 MENU PRESSURIZATION System Presentation 16/32 SYS 1 If the outflow valve is fully open, a lot of air is allowed to escape, the cabin pressure will decrease, the cabin altitude will climb with a Vertical Speed. Pack 1 Pack 2 Cabin Altitude Cabin Vertical Speed Cabin Differential Pressure MENU PRESSURIZATION System Presentation 17/32 Pack 1 Pack 2 SYS 1 The crew can monitor all cabin pressure functions on the ECAM CAB PRESS Page. MENU PRESSURIZATION System Presentation 18/32 Let’s look at the information, associated with the pressurization system, that is presented on the CAB PRESS page. The pack indication is displayed green when the associated pack is on. MENU PRESSURIZATION System Presentation 19/32 The Outflow valve position can be monitored, and the system controller in use is shown. MENU PRESSURIZATION System Presentation 20/32 There is a single indication for the safety valves. We will look at how this indication changes in the Abnormal operation module. MENU PRESSURIZATION System Presentation 21/32 The Cabin Differential Pressure, or Delta P, shows the difference, in PSI, between the cabin pressure and external pressure. This differential pressure will be at zero on the ground and increase as the aircraft climbs. MENU PRESSURIZATION System Presentation 22/32 The Cabin Vertical Speed shows the rate of change, in Ft/Min, of cabin altitude. For passenger comfort the pressurization system will aim to keep this rate of change as small as possible. MENU PRESSURIZATION System Presentation 23/32 The Cabin Altitude is also shown. MENU PRESSURIZATION System Presentation 24/32 The Vent, Inlet and Extract indications are associated with the Avionics Ventilation System and will be discussed in a separate module. MENU PRESSURIZATION System Presentation 25/32 ECAM CRUISE Page On the ECAM Cruise Page there are indications of; • Cabin Differential pressure • Cabin vertical speed • Cabin altitude MENU PRESSURIZATION System Presentation 26/32 There is also an indication of cabin vertical speed on the ECAM Door page. Note that this indication is only displayed when the aircraft is airborne. ECAM DOOR/OXY Page MENU PRESSURIZATION System Presentation 27/32 On the overhead panel there is a CABIN PRESS panel containing controls to operate the Pressurization system. Under normal conditions no pilot action is required on this panel during flight. MENU PRESSURIZATION System Presentation 28/32 The Pressurization MODE Select switch has two settings: Automatic and Manual. MENU PRESSURIZATION System Presentation 29/32 The normal position for this switch is, lights out. In this position the pressurization system is in Automatic mode. MENU PRESSURIZATION System Presentation 30/32 MAN The use of Manual Mode and the Manual Vertical Speed control will be discussed in the abnormal operation module. MENU PRESSURIZATION System Presentation 31/32 The Landing Elevation selector normally remains in the Auto position. Landing elevation, which is required by the Pressurization system, is then provided by the FMGS based upon elevation of the destination airport. If the landing elevation is not available from the FMGS, then it can be set manually using this selector. You will use this selector in the abnormal operation modules. MENU PRESSURIZATION System Presentation 32/32 The guarded Ditching switch is provided to close all valves below the waterline so that the aircraft can be sealed in the unlikely event of a ditching. MENU NEXT MMoodduullee ccoommpplleetteedd PRESSURIZATION MENU System Presentation 33/32 LLIISSTTOOFFSSUUBBJJEECCTTSS EXIT AUDIO GLOSSARY FCOM RETURN SSYYSSTTEEMMCCOONNCCEEPPTT EECCAAMMIINNDDIICCAATTIIOONNSS PRESSURIZATION CONTROL PANEL

bocome 发表于 2011-7-31 10:06:57

非正常操作

tissle 发表于 2014-4-17 11:05:16

好资料，学习中。。。

diguo 发表于 2017-3-10 14:37:29

好东西。好好学习一下

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320系列机组课程增压系统