Chapter 158: Fire extinguishing is possible, but explosion suppression is still a bit difficult (3k)

When Gao Zhendong said this, Liu Wenwu was very happy. Look, this is what an original designer means. In his hands, he can easily find several solutions to a problem.

"I estimate that if all the methods I mentioned above are used, the reaction time can be compressed to the order of 10 milliseconds."

10毫秒量级，不是10毫秒，10~90毫秒都能称得上10毫秒量级。

This made Liu Wenwu overjoyed, and this was enough.

"This speed is fine, Director Gao, can you be more specific?"

Gao Zhendong smiled and said, "In fact, our factory can produce the electrode materials and give them to you, and you can configure the protective sleeve. These are the ways, you can try them one by one."

"The most convenient material for the protective sleeve is copper. Among metals, its thermal conductivity is second only to silver, but it is only about 5% lower. From a comprehensive perspective of price and mechanical properties, copper is a good substitute."

"As for the specific thickness, you can experiment on your own and come up with a comprehensive value that meets your requirements."

Liu Wenwu nodded repeatedly and took note of Gao Zhendong's suggestions.

Gao Zhendong thought about it and pointed out another way, although the conditions were not yet mature.

"In fact, using thermocouples is not the best method, but other methods are not very mature now, and are not as good as thermocouples. If you want to use thermocouples, it is recommended to arrange multiple sensors in a dispersed manner or use cable-type thermocouples, because strictly speaking, thermocouples can only work when they 'touch' heat, that is, they must have contact. If there are too few, it is impossible to fully monitor the temperature distribution in the protective space."

Liu Wenwu thought about it and felt that what Director Gao said made a lot of sense.

Thermocouples need to be in direct contact with heat in order to drive their own temperature up and then initiate the spraying of fire extinguishing agent when the temperature reaches the threshold. If the number is small, the situation that Director Gao mentioned will definitely occur.

After writing down the words "systematic arrangement, decentralized arrangement", he suddenly realized that Director Gao seemed to be saying that he had a better way. No matter whether it was mature or not, it would always be a good idea to listen to it first.

Was he being too aggressive? With a little trepidation, Liu Wenwu said, "Director Gao, you just mentioned a better way."

Gao Zhendong nodded. "I was just about to tell you this. If we use thermocouples, the reaction speed is fast enough to automatically extinguish fires, but explosion suppression is still a little bit behind. Engineer Liu, what do you think is the fastest way for us humans to receive information?"

Liu Wenwu was thinking about the metaphor Gao Zhendong had used when he talked about the disadvantages of thermocouples, "touch".

Touch, smell, listen. That’s right! He immediately understood: the fastest way is to “see”!

Liu Wenwu said immediately: "Director Gao, look! Look, it's the fastest."

But then, he was a little frustrated. The price of a sensor that can "see" is very high at this time: "Director Gao, is it inappropriate to use a camera or something like that here?"

Gao Zhendong smiled: "It's called 'seeing', but the core principle is actually the detection of electromagnetic waves, which is the fastest. You don't have to use visible light, you have to know that flames emit infrared rays of a special wavelength, and they also reflect, illuminating every inch of the space they are in."

Liu Wenwu suddenly realized: "Install an eye inside the protected target to detect infrared rays of a special wavelength! This is a great idea!"

As long as there is fire, the fire extinguishing and explosion suppression system will be activated without waiting for the temperature to reach the target.

You know, when a tank is penetrated, the speed from fire to explosion is very fast. If the action is delayed by 10 milliseconds, the situation may be out of control.

Liu Wenwu suddenly felt that the world was wide open, and he felt refreshed. What is a master? This is a master. You want to solve the problem, right? Okay, okay, I'll give you a better one.

Gao Zhendong shook his head: "Don't be too happy yet. This technology is still not very mature, the false alarm rate is relatively high, and it is also greatly affected by external light sources. But we can use thermocouples first. This technology will develop slowly. Once it is well developed, it will just be a matter of replacing a sensor. It is simple and the cost is not high."

Liu Wenwu nodded repeatedly: "Director Gao is right. We should first solve the problem of whether there is a problem or not based on the existing technology, and at the same time study better technology to solve the problem of whether it is good or not."

Gao Zhendong gave him another suggestion: "Regarding the eye problem, you can try to communicate with the people in the Institute of Advanced Studies, maybe you will get something. I can't tell you about their affairs, you can only try your luck, or see if you can get help through coordination with your superiors."

Liu Wenwu still understood the confidentiality regulations. Being able to obtain this information was already the maximum he could get. Director Gao said there would be gains, and there would definitely be gains!
Liu Wenwu is a little superstitious about Gao Zhendong.

Liu Wenwu thought of another thing: "Director Gao, we have another question."

He felt embarrassed for saying this and felt that he was being a little greedy.

Gao Zhendong smiled: "Go ahead, but let me make it clear first, I don't know everything, and you may be disappointed."

Liu Wenwu felt even more ashamed. Liu Wenwu, oh Liu Wenwu, you are treating Director Gao as a wishing well.

But since he had said it, he still asked, "This is it, Director Gao, your factory has been dealing with fire sources for a long time, so fire prevention and fire fighting must be put first. I'd like to inquire about whether there is any fire extinguishing agent that is highly efficient, erupts quickly, has low residue, does little harm to people when directly inhaled, and basically does not cause long-term harm. Oh, yes, the fire extinguishing type has to match our use." As soon as Liu Wenwu finished speaking, he almost slapped himself in the face. Look at what you asked, with so many restrictions. Do you think Director Gao is here to serve you specifically?

Unexpectedly, Gao Zhendong thought about it and actually answered him.

"You can use halogenated fire extinguishers. This type of fire extinguisher is different from the suffocation, cooling, and isolation methods of general fire extinguishers. It directly participates in the combustion reaction, eliminates free radicals in the combustion, and destroys the combustion reaction. From the principle of fire extinguishing, it is the most suitable for your needs. Moreover, it does not cause much harm to people, and there is no subsequent harm."

"Haloalkanes?" This was completely beyond Liu Wenwu's knowledge.

"Well, it's a product of halogen elements replacing hydrogen atoms in alkane organic molecules. You can use bromochlorodifluoromethane, bromotrifluoromethane, dibromotetrafluoroethane, etc."

Gao Zhendong was very considerate and did not use Halon-1211, 1301, and 2402 to introduce these halogenated fire extinguishing agents, but directly stated their chemical names.

This is because the structures of these halogenated alkanes are very simple. Anyone with a little knowledge of organic chemistry can tell what they are at a glance. Otherwise, you would have no idea what they are just by looking at their chemical names.

Those who have studied organic chemistry in college know that the naming of organic compounds is not a big difficulty in the exam, but it is also a bit torturous.

However, these fire extinguishing agents are not all good. For example, they all cause great damage to the ozone layer. However, this is obviously not a point that needs to be considered in the tank fire extinguishing and explosion suppression system.

Liu Wenwu was astonished by Director Gao’s knowledge. He even knew chemistry. Is this the realm of a big shot?
In fact, Gao Zhendong knows nothing about chemistry. As I said before, it is all the accumulation of being an internet troll in his previous life, plus his enhanced brain is super good.

Who said keyboard warriors are not heroes?

Liu Wenwu felt that this trip was really fruitful. It can be said that after this trip, the automatic fire extinguishing and explosion suppression system he was responsible for was basically completed.

Seeing that Liu Wenwu had almost finished talking about his affairs, Gao Zhendong looked at his watch and said with a smile, "Mr. Liu, it's already noon. You've come all the way here. Let's go. I'll treat you to a meal."

After saying that, he called the people in the single crystal furnace research group, treated them to a meal and wished the single crystal furnace research group a good start to their work.

On the way to the cafeteria, Liu Wenwu remembered what Mr. He had asked him to do: "By the way, Director Gao, Mr. He asked me to tell him when the food will be ready."

When Gao Zhendong heard this, he laughed, Mr. He is thinking about the stability of the tank artillery. The progress is almost there.

He smiled at Liu Wenwu and said, "Haha, go back and tell Mr. He that it will be done soon."

In fact, it’s almost done, but this thing cannot be taken back by Liu Wenwu.

Mr. Luo took it back last time. Firstly, it only had a few pages of catalogue, and secondly, Mr. Luo’s rank was high enough, so it was acceptable.

But this time it's a complete item, so it would be inappropriate to ask Liu Wenwu to take it back. It's better to go through the secret channel.

Liu Wenwu didn't know what the two of them were talking about, but when he heard Gao Zhendong say it would be soon, it meant that what Mr. He wanted should have a good result, and it would be easy to report to Mr. He when he returned.

As for the stupid stuff like helping to bring the things back, he didn't even mention it.

After Liu Wenwu finished his meal and left the Third Steel Rolling Mill, he turned around and headed towards the Guidance and Research Institute. Director Gao said that there would be gains here, and there would definitely be gains. If there were no gains, then it was because I was not doing it in the right way.

The people at the Institute of Guidance and Research were very enthusiastic about them. At this time, what they said was that everyone was of one mind and the whole country was working as one, which was still quite realistic, and there were not so many taboos between them.

When hearing Liu Wenwu's request, the Institute of Guidance and Research was a little embarrassed: "Comrade, I need to ask for instructions on the situation you mentioned."

Then the matter was reported to the vice president of the Institute of Missile Research, who was also the chief designer of the infrared air-to-air missile.

"Did they tell us specifically what kind of support they want?" the chief model designer pondered.

"No, they just told us about their situation and asked if we could provide support. They didn't say what they wanted specifically."

"It seems that the person who gave him the information was very cautious and did not reveal too much."

"According to him, they just came here after receiving technical support from the Third Steel Rolling Mill."

The chief model designer suddenly became alert: "Hmm? Beijing No. 3 Steel Rolling Mill? Director Gao Zhendong?"

"It should be Director Gao. Apart from him, it is unlikely that anyone else from the Third Rolling Mill will be there."

(End of this chapter)