Otaku Engineer in Great Tang Dynasty

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"Hmm~! This mutton eats with energy! How can good meat be without good wine? Xiaoxuan, get someone to bring wine! I'll have a drink with your father and your grandfather~!"

Others said that Cheng Yaojin was killed halfway, but Li Zexuan ate half of the hot pot today, and he ate a Cheng Yaojin!

The old goblin came here to see how the greenhouse vegetables in Li's house are growing, because Zhuangzi in his family and Zhuangzi in Qin Qiong's family have recently introduced greenhouse vegetable cultivation technology.

The results of it! The old guy in the greenhouse didn't even look at it. As soon as he entered the house, his eyes were fixed on the mutton, fish and dipping sauce on the table.

Having been with Cheng Yaojin for so long, how could Li Zexuan not understand the old guy's mind? So he didn't say anything, just "interestedly" invited Cheng Yaojin to eat hot pot together! Anyway, in the identity of this old guy, after a while, you don't have to worry about Wuhou arresting him because of the curfew!

Cheng Yaojin gave Li Zexuan an approving look, then sat down unceremoniously and started eating together.

As the saying goes, eat meat in large pieces, drink in large bowls, and after eating for a while, Cheng Yaojin felt a little uncomfortable, so he shouted for Li Zexuan to get the wine!

Li Zexuan had no choice but to let Sanbao go to the wine cellar to hold a jar of immortals and get drunk.

After the wine came on stage, the atmosphere became more lively. Cheng Yaojin has a straightforward nature, and he has a good relationship with Father Li in the past year. Ye Guozhong has been in a high position for a long time, and he is also well-informed. The three still have a lot of common topics.

Li Zexuan felt that Cheng Yaojin's wine was not very good, and he only wanted to eat hot pot, but he didn't want to drink very much, so he didn't mix with them, and he didn't eat well with Laner, Mrs. Li, and Mrs. Ye. Also happy!

After he was full and full, Cheng Yaojin burped his stomach full of wine and returned with satisfaction. This hot pot at home, hiccup~, is so... so delicious! I will send my cook back later, hic~, you...you have to let someone teach... teach him! I haven't eaten it for a long time. So full, hiccup~, so refreshing to drink!"

The old guy's original intention of bringing him to Li's house was to forget everything, but he only remembered the hot pot thing. I have to say that in the absence of a battle, the desire for appetite is Lao Cheng's biggest pursuit now!

…………………………

On the second day, near noon, Li Mansion.

"Feiji, you send these blueprints to the workshop and give them to Uncle Fu, and let him make them in two days!"

Li Zexuan called Pang Feiji, took out two blueprints, handed them over, and ordered.

"Yes! Lord Hou~!"

Pang Feiji took the order and left.

Li Zexuan had someone carry a coal stove and a basket of briquettes onto the carriage. The coal stove was still burning, and then he rode the carriage towards the palace, where he was going to see Li Er.

As for the drawings that he just gave to Pang Feiji, they are the drawings of the radiator and heating pipes that he just drew in the morning. The structure is quite simple. He has already measured the size in the morning. The drawings of the other courtyards are all drawn by him, so naturally there is no need to measure them.

Li Zexuan intends to install self-made heating for both the mansion and the Yunshan Courtyard.

Anyway, there are briquettes and coal stoves now, just set up a pot and arrange some pipes, basically it's ok!

This is what he made by imitating some self-made heaters in the countryside in his previous life, and the principle is very simple:

A large boiler for boiling water, the furnace is double-layered, the top and bottom are closed, the top is connected to the steel pipe, the water layer is connected to the flue, and the heating water supply is connected. This point is the lowest point of the water supply pipe, and the heating end is set at the highest point. Exhaust valve, one percent gradient;

The bottom is flat and connected to the heating return water, and then the return pipe is connected to the water supply pipe next to the stove. The height is higher than the highest point of the water supply pipe, and the water supply tank is set up. The return pipe next to the stove is the lowest point.

The water in the furnace is heated to become steam and rises, and the heat is dissipated to the highest point through the water supply pipe to become a mixture of hot water and steam. After the hot water enters the radiator for heat dissipation, the temperature decreases, the density increases and the volume becomes smaller. Thus forming a circular loop.

The slope of the water pipe for self-made heating is very important. The downhill will cause no heat. The water layer of the furnace should be thin, 1-3 mm. Because the water layer is thick, it will cost coal. The high-point exhaust valve must be open, otherwise the whole system will be closed. , there will be an explosion!

The reason why Li Zexuan has only started heating now is mainly because there was no briquettes or coal stoves before, and it was very inconvenient to boil water, because the continuous combustion ability of charcoal is far less than that of briquettes! Now that he has come up with briquettes and coal stoves, of course he has to quickly install the heating at home!

. . . . . . . . . . .

In the palace, Li Er returned to the Lizheng Hall in Xiyuan as soon as he left the morning court, because there are charcoal basins and stoves here!

Although he is a horse emperor, he also has martial arts skills, but he is far from the point where the martial arts master can't invade the cold and heat. In this weather, he will also feel cold!

Li Er had just talked with Empress Zhangsun for a short while in Lizheng Hall, when a servant of the Huangmen came to report.

"Your Majesty, the Marquis of Yongan asks to see you!"

Li Er was stunned, and then laughed out loud, "Oh? When will this kid come to me? Did he say why?"

Since Li Zexuan entered the officialdom, most of them have only entered the palace after Li Er summoned him. It is extremely rare to take the initiative to enter the palace like today!

"Go back to your majesty, Yongan Hou said, he is here to present a treasure.

of! "

The waiter replied cautiously.

"Giving a treasure? Ha~! This new thing is really one after another! Let him wait at the Nectar Palace first, and I will come right away!"

Li Er became very curious, and he didn't care that it was freezing cold outside. He put on a fox fur coat and prepared to go to Ganlu Hall to meet Li Zexuan.

After all, this is the harem, and Li Zexuan is a normal man who has grown up and married. Of course, he cannot be allowed to come here! If Li Zexuan was not married at the beginning of the year, Li Er might meet him in the harem, but now it is absolutely impossible.

"Your Majesty, the concubine also wants to see what kind of treasure Yongan Marquis is offering. I wonder if I can go with Your Majesty?"

However, Empress Zhangsun was also interested, and she asked Li Er.

"Haha! Since Guanyin maid is interested, let's go together! But it's very cold outside, Guanyin maid, you need to add more clothes!"

Li Er laughed and agreed very readily.

"Thank you, Your Majesty, for your concern, my concubine will save it!"

Empress Zhangsun's heart warmed, and the palace maid put a mink fur jacket on her, and the husband and wife went out!

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