Liu Lang's question made Chen Chunsheng couldn't help laughing.
"You two, you don't know that Professor Chen turns out to be an expert in this field. No one in the domestic compressor field is better than him!"
Another person explained with a smile.
"Oh! So is Professor Chen still engaged in research in this field?"
Liu Lang asked again.
This time the other party fell silent.
"Oh, it's hard to explain in one sentence! What? Liu Lang, do you also know about compressors?"
This time Chen Chunsheng asked Liu Lang in turn.
"Haha, Liu Lang is a top student majoring in mechanical engineering at Hua Xia University. What can't he do? This... compressor of yours is nothing in his eyes!"
Sitting Mu Xiaohu also laughed and answered.
"Haha, really?"
Chen Chunsheng smiled. He knew that Liu Lang was an engineering student at Hua Xia University, but it was a joke to say that he was proficient in compressors.
"Professor Chen, what does your compressor look like? Can it be used to make a refrigerator or air conditioner?"
Liu Lang opened his mouth and said.
"Oh? You also know about refrigerators and air conditioners?"
Chen Chunsheng was a little surprised at this time. These two electrical appliances are now very rare products on the market. Ordinary people are equipped with sewing machines, bicycles and watches when they get married. These three items are collectively called the "three major items" that are necessary. Refrigerators are not
I can’t even afford necessities. The most ordinary refrigerator costs more than a thousand yuan, not to mention air conditioners. Many people have never heard of them. There is no factory in the country that can produce them. They are all imported. Only senior executives
Only leaders will be equipped.
The core component of these two electrical appliances is the compressor. If Liu Lang knows this level, he obviously knows the compressor very well.
"Our School of Mechanical Engineering has a lot of good things. Not to mention compressors for air conditioners and refrigerators, we even have car engines."
Liu Lang said with a smile.
"Well, it seems that I really underestimate you...Okay, I'll show you something good!"
After Chen Chunsheng finished speaking, he stood up and came to a bookcase. He took out a large roll of paper, placed it on the table, unfolded it, and spread it across the entire table.
"Do you know what this is?"
"Let me see...!"
Liu Lang took a closer look and recognized it immediately.
"This should be the Y-1959A strong wind compressor produced by our National Compressor Factory. It is completely imitated from the Soviet compressor. This model is still used in many mines in our country. It has a strong air extraction capacity, but the noise is too high.
It’s so big that no one can stand within five meters.”
The Mechanical Institute has one of these compressors, so Liu Lang couldn't be bothered at all.
"Oh! Okay! Not bad, I didn't expect you are really familiar with compressors!"
This was beyond Chen Chunsheng's expectation.
"Wait a minute, take a look at this drawing again!"
Chen Chunsheng became interested, took out a key, opened a locked cabinet, and took out another roll of drawings from inside.
"Let's see!"
Liu Lang looked at it carefully for a while.
"This compressor is much more advanced. At least it is much smaller in appearance, and it can cool down. It can be used to make a refrigerator. However, it is not small. If a refrigerator is made, it will probably take up two square meters of space.
Not applicable, not applicable!”
A refrigerator occupying two square meters should be called a cold storage.
"Awesome, awesome!"
Liu Lang's answer shocked everyone.
"Liu Lang, your mechanical college also studies this kind of thing?"
Another person asked curiously.
"Haha, Professor Xiong Huaizhi, the dean of our School of Mechanical Engineering, studied abroad and inspected abroad after the reform and opening up. He is very familiar with many machines in Western developed countries. After he came back, he drew many mechanical drawings, including one
In the drawings of Taipower refrigerators, their compressors are much smaller. Although the one you drew is very advanced domestically, it is very backward internationally and is not worth mentioning at all."
Liu Lang shook his head, obviously not interested in this thing.
"Xiong Huaizhi? I know him. He is indeed a capable person. It's just a pity... You are right. I developed this compressor seven years ago and won a national award that year... But
I also have a good thing, if you can recognize it, I will accept it!"
After Chen Chunsheng finished speaking, he went upstairs and came down a few minutes later with a roll of drawings in his arms.
"Haha, Lao Chen, have you taken out everything from the bottom of the box?"
Several other people said with a smile.
"This kid, Liu Lang, is an expert. It's okay to let experts take a look at our stuff. It's just that there are too few experts like him. These drawings have been there for two years. If I put them down again, they will be eaten by rats!"
"
Chen Chunsheng unfolded the drawings as he spoke.
"This is...!"
Liu Lang looked at it carefully. This should also be a compressor, but its structure was much more complicated, and Liu Lang didn't understand many parts.
"You don't know now, do you?"
Chen Chunsheng said with some pride.
"This compressor is very strange. This part should be... It should be an exchanger. What is exchange? Refrigeration? No, it is not just refrigeration. In theory, it should also be able to heat... Could it be an air conditioner compressor?
machine?"
Liu Lang guessed.
"Ah? You can actually guess that this is an air conditioner compressor?"
Chen Chunsheng looked at Liu Lang as if he were looking at a monster.
"Professor Chen, you actually invented an air-conditioning compressor?"
Liu Lang was also surprised. With air conditioning compressors, it is theoretically possible to manufacture air conditioners. You must know that currently no company in the country can manufacture air conditioners. It will take several years for air conditioning companies to appear. Among them, the most famous company
"Meide" brand, this company is the well-deserved overlord in the air-conditioning manufacturing industry in China.
"You're right. This is the air-conditioning compressor invented by us people. It took two years to develop it. The hard work... Oh, I won't go into details. Let me explain it to you.
This air conditioner can cool and heat. It is structurally divided into an indoor unit and an outdoor unit. The most important part of the outdoor unit is the compressor. When we start the "cooling mode", the gaseous refrigerant in the compressor enters the outdoor exchanger.
, turns into a liquid, then flows into the indoor exchanger through the pipe, and turns into a gas. The change from liquid to gas is a process of absorbing heat, which takes away the heat in the room, so the home becomes cooler - this is actually "
evaporation".
"Heating mode" is the opposite process. The gaseous refrigerant in the compressor enters the indoor exchanger, turns into liquid, and releases heat, so the room becomes hotter.
Where does the liquid refrigerant go? It flows to the outdoor exchanger through the pipe, turns into gas, and then enters the room... In short, this is a continuous cycle process, so the air conditioner can continuously deliver cold air to the room.
Or heat."
Chen Chunsheng couldn't stop talking about this compressor. He explained clearly the principles of refrigeration and heating.
"So that's it!"
Liu Lang suddenly realized at this time that he originally thought that the air conditioner used electric energy to heat the copper tubes to increase the temperature. It turned out that this was not the case. It was simply a control of the temperature difference.