The buildings in the Tang Dynasty were mainly civil and wood, with wood accounting for the main part, which was flammable and easily caught fire.

In terms of architectural style, the Tang people advocated high quality, with large houses and high floors, which were difficult to climb, and it was very difficult to rescue a fire.

In order to save building materials, houses rely on each other to form continuous buildings, and together they will be a large area.

As a fire brigade, Wuhou was equipped with only brooms, hooks, axes and buckets. He had to take water from the well. The efficiency was very low and the fire was slightly larger, so there was basically no way.

In fact, due to Li You's arrival, coal has begun to be used, and the cost of firing bricks and tiles has been reduced a lot, and there is also cement. If bricks and tiles are used, fire prevention will be relatively easier.

However, people in the Tang Dynasty did not like to use building materials such as bricks, tiles and cement. This has nothing to do with the cost, it is fashion.

For example, when women go to a formal banquet, even though they feel uncomfortable wearing high heels, no one wants to wear a pair of sneakers for comfort.

Wei Zheng said: Responsible for the country, fire is a big problem. Winter is coming soon, so we should pay more attention to this matter.

I suggest that today we will focus on this issue and we must come up with a proper solution.

Li Chengqian nodded and said: Lord Wei’s words are reasonable. Dear Lords, who can put forward any good opinions? Even immature ideas do not matter. You can put them up for your reference.

Buzzing, there was a lot of discussion in the hall.

Li Chengqian waited patiently for a long time and asked: Who has any good opinions? Please come forward!

Everyone shook their heads, and no one could give any better opinions.

It’s no wonder that this problem does not exist today. Not to mention the distant past, who can solve this problem from the Han Dynasty to the present? No one.

At this time, Chu Suiliang came out and said, "You have an idea to report to the country."

Li Chengqian said: Please speak with Lord Chu.

Chu Suiliang said: Among the ministers in our dynasty, His Highness the King of Qi must be the one who is in charge of wisdom. If this matter is left to the King of Qi, he will definitely be able to come up with a proper solution.

Chu Suiliang believes that no one can solve this problem for thousands of years, so he doesn't believe that Li You can solve this problem. He recommended Li You in public just to see Li You's jokes.

If Li You cannot solve this problem, his prestige will be greatly affected.

Yes, yes. The ministers said one after another.

Among the ministers, most people believe in Li You, and some of them are accomplices of Changsun Wuji and Chu Suiliang. They will naturally agree with Chu Suiliang's proposal.

Therefore, the ministers in the hall formed a consensus and recommended Li You to solve this problem.

Li Chengqian has made a lot of progress now, and he will never follow the crowd. He is not sure whether Li You can really solve this problem. He wants to communicate with Li You first.

Therefore, although almost all ministers recommended Li You, Li Chengqian did not make any statement.

He said: Apart from this method, what other methods do you have?

The ministers shook their heads one after another, saying that they had no other opinions.

Li Chengqian said: Since that's the case, I'll just end up with this matter today.

After saying that, he proposed to discuss the issue of water conservancy construction in winter.

After the dynasty was dispersed, Li Chengqian sent someone to invite Li You.

Liangyi Hall, side hall.

After Li Chengqian became the governor, his office was in the side hall near Li Shimin's study.

When he saw Li You, Li Chengqian talked about the fire and the ministers' recommendation of Li You today. He said: Fifth brother, you don't have to make things difficult for this matter. If you have a way, let's solve this matter. After all, this is a major event that concerns the national economy and people's livelihood.

If you have no choice for the moment, it doesn't matter. I won't mention this matter anymore.

Li You woke up this morning and also heard about the fire in Yongpingfang. He was thinking about the matter seriously. It happened that he stayed in Chang'an and had the time and conditions to solve this problem.

He said: Brother is right. The fire prevention problem in Chang'an City is a big deal, so let me solve this problem.

Li Chengqian was very happy, but he cared about Li You and didn't want to make things difficult for him. He said: Are you really sure? If you are not sure, you can turn it off.

Li You smiled and said: Brother, the same old saying: What a big deal. Don’t worry.

Li Chengqian smiled and said: Fifth brother, I actually thought you could do it for a long time. Before I could recommend it to you, I would recommend you directly without waiting for the ministers to recommend it. Haha.

Li You smiled and said: Brother, I was in Baekje this time and got the recipes of their delicious food. Why not call my chef over here? Let's have a drink for the two of us at noon today.

OK, I was just about to have a good talk with you. Li Chengqian said happily.

Li You ordered Baihu to send someone back to the Qi Palace to call Gao Zhiming over to prepare lunch.

Research Institute.

On this day, Li You presided over a fire equipment development seminar.

The meeting was attended by the representatives of Wuhou, the Minister of Works, Huangfu Rui, General of Jinwu Guard, Yuchi Gong, who was in charge of fire fighting and the representatives of craftsmen.

Li You wrote on the blackboard: The organization of Chang'an Firefighting.

He first talked about the construction issues of the entire Chang'an District urban fire protection organization from a macro perspective.

According to the construction standards of urban fire brigade (station), 8 first-level fire stations should be set up in Chang'an City, and 710 fire trucks should be equipped.

Each market has a secondary station, which should be equipped with 45 fire trucks and a special service station, which should be equipped with 58 fire trucks; equipment and personal protective equipment should be equipped according to the level of the fire brigade (station) and the staffing status.

Specifically for the organization of the Jinwu Guard, a fire brigade, 4 fire brigades, 32 fire squadrons, and 120 fire brigades.

The basic equipment for firefighters is divided into three parts: vehicle equipment and equipment and personal protective equipment.

Yuchi Gong said: Your Highness, the problem of setting up a firefighting agency is easy to solve. What kind of equipment is this fire truck?

Everyone also looked at Li You curiously.

Li You drew a fire truck on the blackboard and explained it to everyone.

The fire truck he designed was to set up a 1500-liter water tank on the chassis of the four-wheeled carriage, and an artificially powered high-pressure water pump was installed on it to drive a spray gun.

Then, he drew a structural diagram of the high-pressure water pump.

The high-pressure water pump is completed by the reciprocating movement of the plunger in the plunger sleeve. When the plunger is in the lower position, the two water holes on the plunger sleeve are opened, and the inner cavity of the plunger sleeve is connected to the water channel in the pump body, and water quickly fills the water chamber. When the cam is pushed to the roller of the roller body, the plunger rises. From the beginning of the plunger, until the water hole is blocked by the upper end surface of the plunger. During this period, due to the movement of the plunger, the water is squeezed out from the water chamber and flows to the water channel. Therefore, this lift is called the pre-stroke. When the plunger blocks the water hole, the pressurization process begins. The plunger goes upward and the water pressure in the water chamber increases sharply. When the pressure exceeds the elastic force of the outlet valve and the upper water pressure, the outlet valve is pushed open, and the water is pressured into the water pipe and sent to the water sprayer.

Li You explained the high-pressure water pump carefully. He said: The power of the high-pressure water pump comes from a double-operated pressing arm. The water column sprayed by the spray gun can reach more than 80 feet in height.

Among these people, except Yuchi Gong, everyone understood it and couldn't help but become excited. A representative of Wuhou said: That's great. If there is such a fire truck, it would be too convenient to extinguish the fire.
Chapter completed!