当前位置:首页 >> 电力/水利 >>

Fire Protection


CAFUC
Fire Protection

J. Long

Contents

2/49

? ? ? ? ? ? ?

General Fire detection system Overheat detection system Smoke detection

system Fire extinguishing system Lavatory fire extinguishing system Control and indication of built in fire extinguisher system

Fire Protection

General

3/49

? Aircraft fire zones

Fire Protection

General

4/49

? Fire classification of aircraft

Fire Protection

General

5/49

? Fire extinguishing agent used in aircraft
Fire classification Suitable fire extinguishing agent A B C Water, Freon, Powder Freon, CO2, Powder Freon, CO2, Powder

D

Powder

Fire Protection

General

6/49

? Aircraft fire protection systems

Fire Protection

General

7/49

? Fire warning indications
– Warning lights + Warning bell

Fire Protection

General

8/49

? According to FAR25
– Engine nacelles, APU compartments and Fuel burning heaters must be provided with fire detection systems and built in fire extinguisher systems.

? Hand fire extinguishers are necessary in the cockpit, cabin, class A and B cargo compartment. ? Other installation (refer to P135)

Fire Protection

Fire detection system
– Wire type sensor (electrical sensor element) – Gaseous sensor/ responder tubes – Infrared ray sensor

9/49

? Three types of sensor and fire detection system

Fire Protection

Fire detection system

10/49

? Wire type sensor
– Consists of an inconel tube where one or two inner conductors are placed in semiconductor material.

FENWAL

KIDDE

Fire Protection

Fire detection system

11/49

? Wire type sensor
– The semiconductor has characteristic of negative temperature coefficient.

FENWAL

KIDDE

Fire Protection

Fire detection system

12/49

? Wire type sensor
– Sometimes the sensors are protected against mechanical damage by a perforated cover tube.

Fire Protection

Fire detection system

13/49

? Wire type sensor
– Schematic of wire type warning system

Fire Protection

Fire detection system

14/49

? Wire type sensor
– For even more reliability the engine fire warning system is equipped with dual loop detectors.

Fire Protection

Fire detection system

15/49

? Gaseous sensor/ responder tube

Fire Protection

Fire detection system

16/49

? Gaseous sensor/ responder tube
– Average section overheat detection
? The helium by which the tube is filled expands when the average section of the sensor is heated and activated the fire warning.

– Spot section overheat detection
? Spiral “discrete element” ties down hydrogen when the temperature is low and disengages the hydrogen when the temperature of a spot section of the sensor increases.

Fire Protection

Fire detection system

17/49

? Fire sensors used in civil transport aircraft

Fire Protection

Overheat detection system

18/49

? The wire type and the gaseous sensor/ responder tube fire warning systems are also used as overheat detection systems. ? The differences to fire warnings are
– Lower onset temperature level – No warning bell – No fault warning

Fire Protection

Overheat detection system

19/49

? Sometimes bimetallic switches are used as overheat detectors.

Fire Protection

Smoke detection system

20/49

? Mostly used in cargo and E/E compartment
– Photoelectric smoke detector

Fire Protection

Smoke detection system

21/49

? Mostly used in cargo and E/E compartment
– Ionization smoke detector

Fire Protection

Smoke detection system

22/49

? Mostly used in cargo and E/E compartment
– Ionization smoke detector

Fire Protection

Fire extinguishing system

23/49

? Built in fire extinguishing system
– According to FAR 25
? One fire extinguisher required for APU. ? Two fire extinguisher required for any main engine.

Fire Protection

Fire extinguishing system

24/49

? Built in fire extinguishing system
– Fixed fire extinguisher uses freon gas as the extinguishing agent with nitrogen gas used to pressurize the bottles.

Fire Protection

Fire extinguishing system

25/49

? Built in fire extinguishing system
– Overpressuer indicator (red) – Discharge indicator (yellow)

Fire Protection

Fire extinguishing system

26/49

? Built in fire extinguishing system
– Discharge squibs

Fire Protection

Fire extinguishing system

27/49

? Built in fire extinguishing system
– Pulling out the fire switch/ handle

Fire Protection

Fire extinguishing system

28/49

? Built in fire extinguishing system
– Preparing for discharging the extinguishing agent

Fire Protection

Fire extinguishing system

29/49

? Built in fire extinguishing system
– Turing the fire switch/ handle to discharge the extinguishing agent, bottle discharged lights on.

Fire Protection

Fire extinguishing system

30/49

? Built in fire extinguishing system
– Freon gas has the following extinguishing effects
? Anticatalytic effect
– Lower the velocity of the chemical reaction (burning).

? Cooling effect
– Expansion of freon.

? Suffocation effect
– Supplant the oxygen since freon is heavier than air.

Fire Protection

Fire extinguishing system

31/49

? Built in fire extinguishing system
– Cautions: In order to prevent poisoning
? Avoid contact with the agent. ? Do not breathe the agent. ? Ventilate areas before entering.

Fire Protection

Fire extinguishing system

32/49

? Hand fire extinguishers
– Freon/ halon fire extinguishers are usually used in aircraft. – There might be also water, carbondioxide or dry chemical fire extinguisher.

Fire Protection

Fire extinguishing system

33/49

? Hand fire extinguishers

Fire Protection

Fire extinguishing system

34/49

? Hand fire extinguishers

Fire Protection

Fire extinguishing system

35/49

? Hand fire extinguishers

Fire Protection

Fire extinguishing system

36/49

? Hand fire extinguishers

Fire Protection

Fire extinguishing system

37/49

? Hand fire extinguishers

Fire Protection

Fire extinguishing system

38/49

? Hand fire extinguishers

Fire Protection

Fire extinguishing system

39/49

? Hand fire extinguishers

Fire Protection

Fire extinguishing system

40/49

? Hand fire extinguishers

Fire Protection

Lavatory fire extinguishing system

41/49

Fire Protection

Lavatory fire extinguishing system

42/49

Fire Protection

Lavatory fire extinguishing system

43/49

Fire Protection

Lavatory fire extinguishing system

44/49

Fire Protection

Lavatory fire extinguishing system

45/49

Fire Protection

Control and indication of fire extinguisher system

46/49

Fire Protection

Example of Fire Protection System

47/49

? B737-800 fire protection system

Fire Protection

48/49

? Please translate the following pages into Chinese:
– – – – – 134、135、136、137 (Team 1) 138、139、140、141 (Team 2、3) 142、143、144、145、146 (Team 4) 148、149、150、151 (Team 5、6) 152、153、154、156 (Team 7)

Fire Protection

49/49

END OF THIS CHAPTER

CAFUC
Fire Protection


相关文章:
PR-00-SIJ-SE-0010 Fire Protection Management
PR-00-SIJ-SE-0010 Fire Protection Management_军事/政治_人文社科_专业资料...The fire extinguishers should be: 灭火器是任何消防大纲的重要组成部分。要求...
Fire Protection Conference Presentation
Fire Protection Conference Presentation_英语学习_外语学习_教育专区。Fire Protection Conference PresentationHello everybody! On behalf of Fire Protection ...
Lecture 3 Fire-Protection Systems
Lecture 3 Fire-Protection Systems_计算机软件及应用_IT/计算机_专业资料。Professional English on Water Supply and Sewerage Engineering Text Lecture 3 Fire-...
Campus fire safety
Campus fire safety_英语_高中教育_教育专区。Campus fire safety Campus is supposed to be a safety, harmonious place,Unfortunately, a succession oCampus ...
Hierarchical fire protection responsibility system Ver.0.2 ...
Hierarchical fire protection responsibility system Ver.0.2 - Baidu uploading_机械/仪表_工程科技_专业资料。中英文对照工厂消防安全逐级责任制 ...
DT-ENG-SOP01 Fire Protection P.M
a. The program will be implemented as per the Fire Protection Maintenance schedule 根据防火保护计划执行防 火程序。 b. The completed Fire Protection ...
Socierty of fire protection engineering
Socierty of fire protection engineering_法律资料_人文社科_专业资料。Socierty of fire protection engineering The Society of Fire Protection Engineers was ...
2. Fire safety test 相关法规介绍及差异比较(含API607...
2. Fire safety test 相关法规介绍及差异比较(含API607第五版重点之说明)_机械/仪表_工程科技_专业资料。Fire safety test 相關法規介紹及差異比較 1. 簡介 ...
Final-Fire Safety Plan--消防安全计划
? Train all Staff on how to operate fire extinguishers, fire blankets and fire hoses. 举行灭火器、消防毯及消防软管操作使用方面的员工培训。 ·Contact ...
fire safety management regulation
implement working policy of prevention the first as well as combination of prevention and protection, fulfill the fire safety duty and safeguard fire ...
更多相关标签: