They were all reborn and became firefighters again?

Chapter 462 Everything starts from the smoke curtain

"A comrade died as a result."

This sentence was shocking enough and won Fang Huai the silence of the religious officials and the solemnity of everyone.

Therefore, no one interrupted, and Fang Huai's voice continued.

"In modern building fires, the buildings are taller and more compact, and there are fewer bungalows with ventilation on all sides. Many buildings are not open around and have few ventilation doors and windows to the outside. Most of them are fire scenes with restricted ventilation, and the building materials and decoration materials contain The burning energy is far greater than before.

From the perspective of this development, it is time for our previous fire-fighting methods to change.

How to control the inflow of oxygen and control the air flow to change combustion conditions has become an increasingly important issue. "

As Fang Huai said, the scene of Xiao Hei's sacrifice kept flashing in his mind.

A small building with three floors and a mezzanine has a large interior space, but there are partitions and a total of three windows, which have not been fully opened.

Typical fire scene with restricted ventilation.

Thinking about it now, if the door is closed and the conditions for oxygen inflow are reduced, the fire will definitely burn smaller and smaller. Although the people inside will be in danger, a short period of hypoxia is not enough to cause death.

At least not more dangerous than a rapid rise in temperature.

But what were everyone doing that day?

When he arrived, the door was wide open, Xiao Hei was attacking from inside, and Hao Chengbin and Zhao Jincheng were standing at the door to control the temperature, with water guns firing.

Maintaining a cooling doorway for internal attackers is currently known as "gating."

No one thought it was wrong at the time, because everyone was taught that water cannons were used to cool people down and create safe passages.

But everyone, including Fang Huai, ignored why a fire with limited ventilation and obviously insufficient oxygen could burn more and more intensely without any signs of weakening.

It is precisely because of the open door and the two multi-functional water guns that they are constantly firing wildly at the big flowers, sending air in through water pressure!
They felt that it was leaving a door for Zhou Yong to escape, and they became the king of hell who wanted his life.

“In addition, in the past understanding, we thought that internal attack means breaking the door, and ventilation means opening the window.

In fact, any number of openings in a fire building structure will increase the heat release rate. Doors are also vents. The existence of a vent will change the path of smoke.

Especially when air with a certain pressure enters, the flow speed of the air will suddenly increase more than ten times!
The smoke surges out towards the door, and the firefighters enter through the door. What kind of high temperature and poisonous gas environment will the firefighters be in? How many degrees of baking will the combustible materials along the entire path experience?

Therefore, when ventilating and exhausting smoke, we must consider the strength of the first response force and cooperate with fire extinguishing instructions. Once ventilation is carried out without authorization, the fire will soon get out of control and people will be put in danger.

The door must be controllable. It needs to be opened briefly when entering and exiting, and then closed immediately. When smoke needs to be exhausted, only by opening the window to exhaust smoke in one direction can a stable one-way ventilation path be created. Otherwise, smoke cannot be controlled, and similarly, fire cannot be controlled.

This is true gated knowledge.

It's not a simple gate control, but a control of high-temperature flue gas and oxygen! "

Fang Huai said, almost wanting to slap himself twice.

Everyone said that after Zhou Yong entered, the cover team continued to spray water for cover, and the fire started to become fierce again, as if it was coming towards him.

This is probably because air is forced into the fire through the door again, causing internal pressure and causing the smoke to become disordered again.

In fact, I didn't have to fight hard to get in that day. I just had to get to the scene and close the door during Zhou Yong's first internal attack, leaving only the door crack where the water gun entered, and then cool down the entire second floor floor. Although the water vapor might briefly burn Zhou Yong. Brave, but with reduced oxygen and continued cooling, the fire will definitely develop in the other direction!
With this approach, when Zhou Yong enters the fire scene for the second time, the survival situation inside will have undergone a qualitative change. Maybe it will no longer be dangerous. Maybe, he does not need to retreat in a hurry at all, and can completely wait for his comrades to come to save him.

This obvious mistake caused by lack of knowledge made Fang Huai regretful.

Zhou Yong was very brave, but he did not die from bravery, but from ignorance.

The ignorance of comrades.

But comrades don't want to be ignorant, they lack correct knowledge and learning methods.

What Fang Huai said today was intended to be heard by the 46 commanders present, and even more so, by the commanders in the entire school.

The flow path of smoke has not yet been formulated in detail in any corner of the world. The religious officials naturally have no way to refute and can only be listeners, but the future commanders next to them are obviously more interested.

A curious student broke the silence.

"Then you mean you can't shoot flowers at the door?"

Fang Huai came to his senses after hearing the question and said:

"It's not that you can't shoot, it's that you can't use too much pressure, and you sweep the goal. The water pressure is high, the shooting area is wide, and you sweep the door. Is it pushing the air inside quickly?"

"But what we learn as recruits is to use two guns when entering the fire scene. The front one is blooming, and the rear one is direct current. The bloom covers the attack, prevents flame impact, and direct current ignites the fire source. It is like a hundred-meter ladder attack drill. After so long, It’s also very useful. If we don’t allow shooting at the door in the future, who will cover the internal attack?”

Everyone's thirst for knowledge brought a smile back to Fang Huai's face:
"When covering, you should use the door control method to tentatively enter. After the water gun enters the door and shoots water to cool down, you can go inside to operate. The door control method and the water injection method for transitional attacks should be based on the specific situation, and the religious instructor should be able to explain it.

All I can say is that with an unobstructed entrance, the nozzle should be as close to the inside of the fire scene as possible, and the water should be continuously adjusted at an angle to the ceiling. This is a method that can limit the entrainment of air by the jet and quickly cool down.

Moreover, the previous pattern of a group of guns covering and a group of guns attacking is not immutable. As long as a multi-functional water gun is designed that can spray flowers and spray simultaneously, it can bloom and spray directly. You can also set the nozzle to bloom on the edge and spray directly in the middle. , you can cover your own attack and enhance your mobility. "

"Well…"

It’s a great idea to add a DC belt to the multifunctional water gun.

If there is one more gun like this, if it is easy to use and has stable firing pressure, it will undoubtedly be good news for the under-strength squadron. Not to mention whether it will save people, whether it will be more flexible, and there will be one less cover gun to deal with a battle. After the fire, the hose can be saved by several dishes, right?

The discussion started to get louder and the thinking gradually became more active. Before the religious officials could control the situation, someone asked another question.

"If the door needs to be opened or closed, do we need a person to assist in opening and closing the door? We don't have enough manpower to begin with, so we have to add a security officer to close the door? And if the door is closed, what can we do if we can't see the inside?"

"You don't have to add people." Fang Huai shook his head and said:
"In Europe, there is a kind of smoke curtain, which is mounted on the door frame with a wide top pole. It is easy to hang and is fire-resistant. As long as it is hung, there is no need to repeat the operation of opening and closing the door.

After people pass by, the curtains will naturally hang down, and such blocking can give people the greatest sense of security and will not affect entry and exit.

As for what you said about not being able to see, adding a flashlight to the inside of the door can solve the problem. "

"Oh…"

They have thought about it comprehensively and have thought about all the relevant equipment.

No wonder it attracts the attention of upper-level leaders.

At this time, the religious officer smiled: "Comrade Fang Huai, ideas are ideas. They have to be implemented, but there is still a long way to go. I would like to ask, have you included the production line in your creative ideas? The fire station does not have a purchase order. Who Even if we purchase the equipment for you, if it doesn’t work during the testing phase, who will take care of it?”

When Fang Huai heard this, he couldn't help but let out a long sigh.

When he spoke, his words were ridiculed without a trace of respect.

"Religious minister, do you know what we should learn most from the Western thought you admire?

This smoke curtain is not promoted by the government. Its promoter is an insurance company. After research and exploration, the insurance company believes that it can better protect disaster-stricken houses, so it sponsors the government to purchase this smoke curtain and sponsors it. The smoke exhaust machine manufacturing company will equip each positive pressure smoke exhaust machine with such a smoke curtain.

The openness of the West lies in not being bound by ideas. It will create conditions to do things that are beneficial, rather than sitting here and imagining 10,000 reasons why it cannot be done. At the same time, by encouraging such ideas, it enriched the creativity of modern science and completed technological catch-up.

Of course, since I mentioned it, I have thought of a way. My father happens to have a company that is planning to acquire industrial production lines. I can guarantee that the gun I mentioned and the smoke curtain will be available in China within half a year. , As for whether the fire department will purchase it, that is not something I can decide.

In addition, I will also write a detailed report on today's discussion and give it to the leader. Starting from these two lectures and this smoke curtain, I will describe the need for fire protection scientific research, promote the private voluntary research market, and refuse some companies monopoly, allowing more self-research companies to profit. "

Fang Huai said, his tone gradually becoming firmer.

that's it.

The fire equipment company that I have been planning and the advice on the fire protection scientific research environment started with this gun and this smoke curtain.

The surrounding people were amazed one after another.

What a cruel person!
They also have a company at home, and if they don't agree, they will break up!
I also have to write a report to the leader!

What is the integration of theory and practice?
This is it!

The religious minister's face finally lost its expression.

What report are you writing on this matter? What report to write? You want to get my material?
Fang Huai opened his mouth to acquire industrial production lines, which finally made him realize: the strength behind this young man was amazing.

Yes, as a student, no matter how good he is, it will be too difficult for him to get in touch with the leadership. Maybe he has high-level connections in his own family!

"Comrade Fang Huai, there is something wrong with what you said. No one will sit idly by when faced with problems! To solve problems, we need to consider everything comprehensively and use reasonable methods!
...However, the original intention of developing social fire protection undertakings is good. You are a talented person. If you have any ideas, you can speak out. The school teaching and research group will support you. Come to the office later and we can talk. "

It is impossible to give in in public.

But the words of religious officials became softer and softer as they spoke, and even the exclamations gradually disappeared.

The people around are not just students. Recommended students must be recommended by the unit. Even if it doesn't matter, they must at least get along well with the unit leaders and have the ability to listen to music.

Who can’t see that the attitude of religious officials has changed?

Everyone is sighing in their hearts.

Boss, this is boss.

Fang Huai's thoughts are actually much simpler.

He definitely has the ability to make a report. He will definitely write the report, and he is not just pretending to be a bully.

It just depends on how to write it.

At this moment, he was just squinting and thinking about what value this religious minister had that was worth exploiting.

After a long while, Fang Huai said: "Teacher, I have an idea. I wonder if your teaching and research team will support it?"

The religious officer's heart trembled.

"Which aspect?"

"Kun refers to the Fire Research Institute." Fang Huai said concisely and comprehensively.

The religious ministers were filled with laughter.

If you can get indicators for this matter, who wouldn't?
But now there are three fire research institutes in the country, Shanghai, Chengdu, and Tianjin. They are established in public institutions and are units directly under the ministry and bureau. The leaders inside are experts who receive GWY subsidies. Do you think it is so easy?
"...If you can make it happen, it will definitely be a good thing. However, I hope your ideas are practical. Let's take some time and let's talk."

"Okay, teacher."

Fang Huaidan simply sat down after speaking.

In fact, he didn't plan to do anything big, and the religious officials probably didn't have the ability either.

He just needs a serious scientific research unit that can support his company's research, even a listed unit with only one office in Kunming. For Kunming, there are more activities and for him, there is an official cooperative research With its reputation, the equipment developed by the company in the future will be easier to enter the fire brigade and be accepted by the majority of officers and soldiers.

Moreover, it is best to have the signature of the school in the report related to scientific research, so that it will not be your own opinion along the way.

He now realizes the importance of "theory also needs a source".

School is undoubtedly a good place to create theories. If there is a scientific research unit here, then whatever you lack in the future can be made up for here.

As for cooperation, I believe the school will not refuse it. The development of a school very much needs these research results as the cornerstone.

I also have a theory of fire dynamics here. According to the information I have learned, many Western countries are still exploring it. I can slowly make conjectures based on the development of the theory. Within a year or two, a series of advanced results will be born.

It is difficult to get started, but you can start the company by yourself and build a laboratory to demonstrate part of it. As long as you are on the right track, the foundation of cooperation between the two parties will become stronger and stronger.

The religious leader continued to teach and no longer called Fang Huai by name.

Fang Huai was also quietly comparing the textbook published in the early 2000s, marking down some theories that needed to be revised and updated.

The classroom is harmonious.

Turning the table over is the prerequisite for harmony.

……

At noon, Fang Huai came out of the religious minister's office with a smile on his face.

The matter of fire theory is not mentioned for the time being. This thing will be fictitious until the results are put into practice. However, the production line is very specific. Fang Huai promised that as long as the school has a scientific research institute, the company's research results and R&D equipment will be in the future. It can be shared in the name of joint research between both parties, and 20% of the profits from the sales of equipment can be returned to the school.

Moreover, the company's initial investment in 09 alone will not be less than million.

The school is just a name, with zero investment. The only thing that needs to be done is to apply to the superiors for a research institute with a staff of ten people.

In this establishment, some outstanding teachers can still work part-time, and additional expert subsidies are enough, which costs almost nothing.

As long as the school reaches a consensus, Fang Huai promises to ask his father to come and sign an intention to cooperate before leaving.

This matter is basically zero-risk for the school. If it can be done, it will sit back and wait for the money.

The religious official didn't even hesitate, he agreed to ask for instructions and report, and hurried to find the leader.

After Fang Huai finished the work, he felt much more relaxed. What he had been thinking about for a long time was finally officially started.

In the future, I will have to spend some military merit points to exchange for some advanced equipment information. As "research results", it should be easier to get the procurement quota in the name of the school.

Thinking about it all the way back to the dormitory.

As soon as he opened the door, Yang Tao started making noises.

"Fang Huai, why did you come back just now? Someone from your corps is here and they want you to take a group photo! Damn, you are too proud. Everyone from your corps is waiting for you downstairs! Go quickly!"

(End of this chapter)