mortal train conductor

Chapter 154 The train catches fire
Fire refers to the disaster caused by burning out of control in time or space. Among all kinds of disasters, fire is one of the main disasters that most often and most commonly threaten public safety and social development.

The ability of humans to use and control fire is an important symbol of the progress of civilization. Therefore, the history of human use of fire and the history of fighting against fire go hand in hand. When people use fire, they constantly summarize the law of fire occurrence. To reduce the harm caused by fire as much as possible, when encountering fire, people need to escape safely and as soon as possible.

Railway passenger trains are cheap and have a large passenger capacity, and are currently the most important means of public transportation suitable for my country's national conditions.However, the train is in a high-speed moving state. Once a fire breaks out, it is likely to cause a large number of casualties, huge economic losses, and bad social impact.

"Che Liu, on the right side of the direction of travel in carriage 5, smoke has been emitted from the wall panel at the ceiling in the middle of the carriage." A call from conductor Li Mang came from Liu Qun's walkie-talkie.

Liu Qun responded: "Quickly rush to the fire site with a fire extinguisher, appease the passengers and organize the evacuation."

Li Mang said: "Got it, Liu Che, the smoke inside the wall panel is probably caused by an electrical problem, and it seems to be okay."

Liu Qun said: "Hurry up, follow the command and evacuate the passengers."

Then Liu Qun used the walkie-talkie to call Sergeant Zhang and the train inspector on duty: "Members of the K18 fire emergency team quickly assembled and rushed to the No. 5 compartment. It's an emergency! Quickly activate the No. 3 train fire emergency plan.

Camping cars, please quickly mobilize off-duty conductors to get up!

The staff in other posts are on their respective positions to appease the passengers, and it is very likely that emergency braking will be applied. Passengers are requested not to walk back and forth as much as possible, and sit in their seats!

Loudspeakers (train announcers) do a good job of broadcasting publicity to appease passengers.

Li Mang will see if there is any change in the smoking situation! "

Li Mang yelled on the intercom: "Liu Che, the smoke is getting bigger and bigger!"

Liu Qun said on the intercom: "Please pay attention to all positions, the K18 train will use the emergency brake valve to stop!"

After speaking, he walked quickly to the emergency brake valve at one end of the No. 14 car, first observed the pressure gauge of the brake supervisor, and found that the pointer of the pressure gauge pointed to 600 kPa, which proved that he was not on the downhill slope at this time. .And Liu Qun also knows that the line between Station C and Station D is very gentle, without long tunnels, long bridges, and long downhills.

Liu Qun broke the plastic cover of the emergency brake valve with the car door key.Quickly pull the emergency brake valve handle to the fully open position.

And in one go, without pauses and shutdowns.Liu Qun felt an upward elastic force after pulling down the emergency brake valve. He knew that he had encountered the emergency brake valve of the spring handle. The special spring handle will automatically reset once you let go, so that the train can be released again after braking, and the purpose of emergency stop cannot be achieved.Liu Qun checked the pointer of the pressure gauge while pulling the emergency brake valve, and it quickly dropped to zero kilopascals and did not rise again.

Among the 4 situations where the emergency brake valve is explicitly used, there is a train fire.

After the train stopped, Liu Qun quickly ran to the No. 5 carriage, and at the same time, in the intercom, arranged for the train speaker (announcer): "Quickly broadcast to the passengers and tell them not to panic. Passengers in the No. 5 carriage are working on the train. Leave quickly under the guidance of the staff, don't take your own luggage, leave quickly, passengers in other compartments, sit in your seat and wait, don't walk around at will."

The vehicle crew chief and Sergeant Zhang rushed to the fire site quickly.The on-duty conductor of the camping car also called all relevant personnel to prepare for fire fighting.

Type 25 buses have power distribution lines with three voltages of 48V, 220V and 380V, as well as lighting fixtures, air-conditioning systems, electric tea stoves and other living power facilities. The accident probability value of the electrical system and electrical facilities and equipment has also increased accordingly, and the smoke in the wall panel is likely to be caused by the aging of electrical equipment.

The special structure and space form of passenger trains make passenger train fires have the characteristics of violent combustion and rapid spread. If they are not stopped to deal with them, it is likely to cause greater losses.After parking, at least the vehicle will not move anymore. If the exhaust volume of the train is too large and the oxygen supply is sufficient, the wind from the train and the hot and cold air from the fire will form a hallway effect and diffusion effect during the intersection.

When the speed is 100 kilometers per hour, the wind force on the outer edge of the window reaches about six or seven levels. If the end doors at both ends are double opened, the flame will be more violent.Passenger trains burn at a very high rate during operation. According to incomplete statistics, if a fire breaks out while the train is running, the flames can reach the ceiling within half a minute, and the amount of smoke can reach 2% of the volume of the car within 100 minutes. 8/1 of the carriages will be overfired directly within 2 minute, the car body will be completely burned within 15 minutes, and will be completely burned within 18 minutes, so the speed of disposal is often slower than the speed of flame spread.

The train conductor is fully responsible for the fire prevention work of the train, and establishes a fire prevention leading group with the train conductor as the team leader, the police chief and the vehicle crew chief. Fire Safety Responsibility System.

After a train catches fire, it is difficult to rescue along the line, because there are no outdoor fire water supply systems, fire water sources, and fire truck passages for fire fighting train fires along the line and stations, especially stations below the third class. Closed, the reduction of existing level crossings makes it difficult for fire trucks to quickly approach the fire vehicle and delay the firefighting aircraft.

Moreover, most of the fires in passenger cars are hidden places, such as above the luggage rack, below the seats, behind the switchboard, on the ceiling or the inner layer of the end panel. Due to the limitations of the use conditions, it is difficult for the fire extinguishing agent sprayed by the fire extinguisher to reach the fire point deeply, and it is difficult to find the source of the fire. .

However, it is difficult for flight attendants to deliver fire-fighting equipment. Camping cars are generally arranged and hung at both ends of the train, and rescue forces cannot reach the fire site in time. Once the passengers are eager to escape, it will cause congestion and cannot evacuate in time, which will easily cause accidents of mass death and injury. What is more serious is the dense smoke produced by the train burning, which increases the difficulty of escape.

The car body of the passenger train uses more polymer compounds, and the combustion causes these substances to produce toxic gases such as carbon monoxide, ammonia, nitrogen monoxide, nitrogen dioxide, etc., and the windows of the train are all closed, so that the toxic gases cannot be discharged. It is easy to cause poisoning or smoky coma of passengers in the compartment.However, if the glass on both sides of the compartment is opened or smashed, the air will quickly enter the combustion area, which will easily cause the fire to spread rapidly, making it difficult to fight the fire.

(End of this chapter)