They were all reborn and became firefighters again?

Chapter 461 This is not gate control at all!
Fang Huai's words were very modest.

But the smile on his face has another meaning no matter how you look at it - I'm just being humble.

Religious officer Fang Huai's lesson just now was indeed a bit condescending. We are all old men in the army, so we can't help but hear it.

However, as the district captain, Jin Guotao saw that Fang Huai's face seemed unhappy, so he persuaded him with a big brother mentality:
"The professional courses for religious ministers are really good, and his ideas are also very advanced. I heard that he has done a lot of research on the firefighting model in the United States. He has taught many classes. Usually we want to ask him questions, but he may not be available yet... He is willing It’s a good thing to tell you more.”

Yang Tao immediately agreed: "Yes, the religious teacher has strong theoretical ability and has worked in the local area. We have benefited a lot from what he taught... He is just a bit arrogant, likes to train people, and all academics are like this. "

Fang Huai smiled noncommittally.

A little arrogant?
If I were willing to share my signature rights on the plan with him, he would probably smile at me right away.

"Okay, don't worry, you just said a few words to me. I'm not that stingy... However, I hope the religious minister won't be stingy for a while."

Fang Huai's words made Jin Guotao frown again.

"Fang Huai, if you have any objections, don't conflict with the teacher. Don't worry, if he really targets you again and again, I will definitely report it to the team."

He is the district captain. Although he can't understand the conflict between Fang Huai and the teacher, Fang Huai must have a strong background, and he is also a little unsure about Fang Huai's character. Hearing this, he is afraid that there will be a head-on conflict.

Maintaining teaching discipline is his job.

The student team and the academic administration are two sets of management systems. Students must respect the teacher. Of course, if the teacher has problems, he also has the right to respond upward.

However, the teacher level is generally higher, and students must not conflict with the teacher. This is discipline and the concept of superiority and inferiority.

Fang Huai touched his head, not wanting to make it difficult for Jin Guotao, and said:

"Don't worry, I won't target him."

Everyone around was a little confused.

Good guy.

Those who have a backstage speak differently.

You won't target him?

If the religious officials heard this, they would probably turn green with anger, right?
Jin Guotao and Yang Tao both wanted to remind Fang Huai that here were students from the national corps. If they contradicted the teachers here, no matter what the relationship was, it would not be good for their reputation.

"Fang Huai, you..."

When Jin Guotao spoke again, Fang Huai's eyes flashed, as if he thought of something, he raised his hand to stop him from talking, then took a pen and wrote and drew on a piece of paper.

It's like painting a floor.

Seeing him like this, everyone had no choice but to leave angrily.

A three-and-a-half-story building, with windows, doors, and air vents, slowly took shape in his paintings...

After finishing the painting, Fang Huai looked at the paper blankly.

After a long while, Fang Huai raised his head, took a long breath, slowly tightened his grip on the paper, and squeezed the paper tightly.

Regret slowly appeared in his eyes, and some tears welled up in his eyes.

"I should have changed it a long time ago, I should have changed it a long time ago, brother..."

...

The religious minister chatted with several teachers. When he re-entered the classroom, he blew on the hot tea cup with a smile on his face.

The other teachers didn't come in, they just stood at the door together, glanced at the last row where Fang Huai was sitting, and then left.

Fang Huai saw all this with keen eyes, but his mentality had changed somewhat from before.

There was more solemnity in his eyes.

If he just wanted to exchange knowledge just because he didn't want anyone to disturb his plan, and there were some disputes about face, then now, his mind is completely focused on another issue.

Wrong tactical thinking will cost many people.

Jin Guotao was about to stand up, but the religious leader had already spoken.

"No need to ask for instructions, let's continue what we just talked about, gate control technology."

The religious minister did have a resolute and resolute attitude of a soldier, and quickly erased the blackboard.

Some of the people below panicked. The things in the book were not explained in detail, and the class was unfamiliar and they had no notes. They really couldn’t understand what they were studying during the review.

"Teacher! Don't wipe! You haven't finished copying yet!"

The religious priest didn't stop moving his hands. He wiped the writing on the blackboard and said while writing:

"Taking notes is a matter of class, and I gave you ten minutes. What are you doing? Find other students to copy."

With that said, "Internal Attack on the Fire Ground - Gating Assisted Technology" has been written.

"Gate control, as the name suggests, control of doors."

The religious priest turned around and looked at everyone:

"Please listen attentively. I will ask questions by name later."

When he said this, the religious official glanced at Fang Huai intentionally or unintentionally.

The other students couldn't help but look at him. Some were already laughing. They just thought that this newcomer was too unlucky. I wonder if the man who met the religious minister was on his period. Why did he keep calling him?
Jin Guotao quickly gave Fang Huai a warning look.

Fang Huai just looked serious and stared at the religious leader intently.

The religious instructor noticed Fang Huai's direct gaze and felt the shock of the previous class. At least Fang Huai stopped staring at the book and listened carefully to what he said, with a smile on his lips again.

"Based on the content of the previous lecture, we completed the fire investigation and assessment, and obtained limited internal conditions. The next step is external attack and internal attack.

External attack is usually more risky, because the environment inside the fire scene is unknown. It is likely that the water injection will break the internal balance, generate a large amount of steam, and worsen the living environment of the trapped people. Therefore, it is often necessary to attack the fire after the fire has reached the outside. In relatively turbulent situations, external attack will be given priority. Otherwise, the external approach is generally handled by cooling the wall and isolating the fire.

Different arrangements must be made for external attacks and internal attacks according to the trapped persons. We will talk about this next, but the first step is to open the door.

How to open the door is the key for our firefighters to enter the fire scene. Even if they enter through the window or the top, the firefighters must arrive at the door immediately to open the passage for their teammates to enter the equipment and hoses.

I won’t talk about breaking down the door, this is practical content.

I will only talk about what information exists in a fire scene door and what you should do in front of the door.

First, the fire temperature.

To determine whether the fire has reached the vicinity of the door, first test it with gloves. In addition, if the fire is strong, feel it if you are close to it.

If you feel nothing, you can test it with the back of your hand. Remember, the back of your hand is used to detect the temperature and will naturally retract when stimulated.

Secondly, door control technology is a relatively new concept in Western firefighting and is in the exploratory stage. I learned some fire-fighting ideas in Hong Kong, including this door control. "

The religious minister said this with pride.

"The neutral surface of the fire field we mentioned before is the principle of the existence of this technology. Can anyone tell me what the neutral surface of the fire field is?"

The religious minister finally mentioned this important concept again, but in the form of a question.

"square…"

He barely spoke a word.

"report!"

Jin Guotao quickly raised his hand and reported loudly, without giving him a chance to question Fang Huai.

The religious officer was stunned for a moment, then turned his head and raised his hand:
"Okay, come on."

Jin Guotao was not too prepared and stumbled a little:

"The neutral plane... refers to an interface inside the fire scene... that does not allow air to enter or exhaust air!" "Hmm... not accurate. It is not a fire scene, but a closed fire scene, or the interface where hot and cold air meet in a building. It’s called the neutral plane, with the high-temperature smoke layer above and the cold air layer below.”

The religious minister shook his head, looked at Fang Huai again, and said:

"Fang Huai, do you know the meaning of neutral noodles?"

Here we go again, here we go again.

Everyone looked at Fang Huai.

This time, almost everyone felt that the religious minister was acting deliberately.

In fact, the religious officials just planned to embarrass Fang Huai for the last time.

In this way, if Fang Huai is unwilling to let them guide, he will proudly say in front of the leader: "This guy's theory is really average. I once asked him three questions in class, and he couldn't answer any of them."

Chinese people like "three". Once or twice may be a coincidence, but three times has a summary meaning.

This was the third time I asked him a question.

But this time, Fang Huai will not give him any chance.

The 1.82 meter tall figure stood up with a very tall and straight posture.

The voice no longer searched for answers in the temptation, and the tone of the words was much firmer than before.

"Report! The neutral plane of the fire scene is a concept proposed by the International Fire Protection Academy IFSTA. It is a concept derived from the principle of thermal stratification. Natural plane, literally translated as natural plane.

In the case of a building fire, due to the direct proportional relationship between air pressure and temperature, thick smoke will be emitted from any window. When the hot smoke reaches the back of the window and is discharged to the outside, it will escape upward, and cold air will enter from the lower edge of the window to supply the fire scene.

It means so much.

First, escape, artificially create a neutral surface.

We know that the high temperature and poisonous smoke in the fire scene are all in the smoke layer. Most people in the fire scene are not burned to death, but suffocated or smoked to death. The high temperature and thick smoke in the smoke layer are full of dangers. .

The wet towel we have been promoting to cover our eyes, ears, mouth and nose is actually wrong, because in the process of wetting the towel with water, escape time has been wasted, and it cannot effectively block carbon monoxide and thick smoke poisonous gases.

Therefore, in order to effectively increase the chance of survival and reduce the harm caused by thick smoke to the human body, in addition to low-profile escape, there is also an artificially created neutral surface.

If the trapped person picks up a sheet, curtain cloth, blanket, etc., raises his hands high, and puts the sheet above the head, the trapped person bends his upper body to create an artificial neutral zone, so that the head is below the neutral zone. The smoke will rise up from the sheets behind the trapped person, so that the trapped person can avoid the invasion of thick smoke, and even reduce the chance of being burned by the high heat in the smoke.

Second, determine the intensity of the internal fire.

The neutral zone is usually 10 centimeters above the bottom of the smoke layer. Observing the neutral zone is actually observing the smoke layer. Obvious information about the development of the fire situation can be obtained from the height of the neutral zone.

Smoke is produced by combustion, so when entering the fire scene, the neutral zone is higher and the smoke is thin, indicating that the fire is in the initial stage. The lower it is, the more dangerous it is, and backburning or flashover may occur; if the smoke layer rises sharply, If the smoke thickness decreases, it means that the ventilation conditions have been improved. If it decreases sharply, it means that flashover has occurred inside and the smoke has filled the entire room.

According to the latest research, when the smoke layer drops to about 1 meter above the ground, the fire is approaching flashover.

At this time, you cannot rush into the fire scene.

Third, control the smoke layer.

Entering the fire scene, by spraying water on the smoke layer to cool it, and with the height standard of the smoke layer, the risk of flashover and backlash can be firmly controlled.

Fourth, as the religious instructor said in the previous class, the location of the fire point can be determined by the flow of smoke.

Report, completed. "

Fang Huai finished speaking and the surroundings were quiet.

There was the sound of turning books.

It seems there is no such page?

Isn't the "neutral side" explained in the book just a principle?

The religious official was a little surprised and wanted to say something, but Fang Huai gave a very comprehensive explanation, and there was a "1-meter flashover line." He didn't even know where the research was.

Today, international firefighting is still in the research and development stage of the "neutral plane", let alone China, where the firefighting industry started very late, and it is only mentioned in teaching books.

"Young man, you have to be rigorous about the data. Whose research did flashover occur at a height of one meter in the smoke layer?" the religious official said with a frown.

Fang Huai's face did not change color.

"Teacher, information about foreign firefighting is not only available through training in Hong Kong. I asked my family to order dozens of the latest magazines for me. In addition, I also went online. This data, Australian firefighter Shan from cfbt-au.com Raffel, and American firefighter Ed Hartin of cfbt-us network have all mentioned it.”

As soon as these words came out, the air became even quieter.

Damn it.

Damn it.

Brother, if you remember the data, just remember the data. Do you also remember the names of people?
Dozens of foreign magazines... can you read them all?
It’s not Playboy!
The religious minister felt bad inside at this time.

He felt that he might have underestimated this No. 1.

In fact, if it is not about theory, whether it is the national competition, the squadron reform practice, or the plan that the leader he cares about has a good pattern, any achievement made by this No. 1 is beyond his reach in this life. of.

Now, Fang Huai can still divulge a large amount of data and sources at will, and when he has the ability to argue with him theoretically, the sense of oppression comes over him.

He decided to try the waters again.

"Then do you know how to judge the height of the internal neutral plane before opening the door?"

This is what he is going to talk about next. This is not from a book, but a new way of doing things in the United States.

He wanted to verify the authenticity of what Fang Huai just said.

Fang Huai chuckled lightly and asked:
"Teacher, is this the "gating technology" you want to talk about today? "

The religious minister was stunned for a moment when asked.

The people around him felt that the aura of "No. 1" was getting higher and higher, and they turned their heads to observe him again.

"Of course it's more than that. If you want to know, answer my question first."

The religious minister hated this kind of rhetorical question, and his expression became a little cold.

Fang Huai was too lazy to play riddles with him and said:
"This method is very simple. Just spray the whole door with blooming water and pay attention to the lowest position where the water vapor rises. Above the neutral layer, the door is at high temperature.

Unfortunately, this method is only applicable to doors with smoke layers and parts behind the door, such as wooden doors. The heat is not conducted to the outside, so this method is not applicable. "

There was a burst of "oh" in the classroom.

That's it.

The religious minister was a little embarrassed.

However, he still said with a strong aura: "Gate control technology is still in the development stage, and is gradually being coordinated with internal attacks. Of course, its practicality does not stop there. Doors are the most commonly used entrance and exit for personnel and equipment, and are also the most important channel for escape. , the front cover we talked about before, the internal attack on the floor, and even all the internal attack techniques must be coordinated with it!

Comrade Fang Huai, there is no end to learning. Regarding gate control technology, you are so frivolous, which shows that you still know very little. I hope you can correct your attitude and study hard.

Next, let’s talk about the meaning of gate control and the equipment required. "

In fact, the religious minister no longer wanted him to speak. He turned back a page of the book on the podium and prepared to explain the importance of gate control in response to his frivolity.

However, Fang Huai did not sit down.

The sound came next, as loud as thunder.

"Teacher, gate control is very important, even more important than the layout of the water cannon.

But that method should be taught by the coaches on the training ground, not you.

And, it’s not really gated at all!
The real gate control is the smoke control theory corresponding to gate control!
Moreover, I think we should stop teaching the method of covering flowers in front of the door as described in the book. This is wrong. One of my comrades has already died for this. "

(End of this chapter)