Super Weapon Swap System

"Coming, coming!" just then, a van with gas cylinders started. It was an ordinary van. The door at the back turned over and exposed the gas cylinders at the back. Less than half of the two sky blue gas cylinders were exposed outside. The engine of the car roared and came here quickly.

In the development of national economy, it is inseparable from the transportation industry. In the transportation industry, various vehicles perform their respective duties. High-powered heavy trucks mainly run on long-distance transportation lines, while light vehicles are used for short-distance transportation. In short-distance transportation, vans are the best, which can pull people and goods, It is definitely a good helper to get rich and run towards a well-off society.

The rear steel plate suspension and rear wheel drive give it strong carrying capacity. Although the car is small, it can even pull two tons of goods when needed.

Qin Guan looked at the car coming. The words from Haihe in front of the car were quite dazzling. This kind of car was produced by his own Haihe automobile factory. It sold a lot. The Yellow shell is a beautiful scenery.

Here comes the car!

Several people started together, carried the heavy helium cylinder and put it into the cabin of the airship.

If it is a hard shell airship, there will always be a big guy on it, which is quite inconvenient. Now it is soft. The air bag on the airship is deflated before it is inflated. This first test flight is directly stacked into the upper end of the cabin. Therefore, it seems that the airship is just a device like a mini bus.

Qin Guan watched them install helium cylinders with great interest and asked, "why not prepare this in advance?"

Prepare in advance? After hearing Qin Guan's question, the person in charge had a guilty face: "it's not that we didn't advance. The test flight of our helium airship has been waiting for the helium. We didn't have a chance to get it until today, so we set the test flight today."

"Is it difficult to get this thing today?" Qin Guan asked.

Qin Guan is the master of all kinds of strategic weapons in the macro command field. When talking about contracts, it is often measured in billions. Therefore, Qin Guan did not expect that this small helium would be difficult to manufacture?

"Yes, there is very little helium industry in China. Now the main helium is imported," said the person in charge.

A small gas cylinder came from across the sea, which aroused Qin Guan's interest: "what's the matter? Does it require high technology? Can it be extracted from the air?"

Liquid nitrogen and liquid oxygen known to Qin Guan are extracted from the air. When the air is pressurized and cooled, it can be liquefied. It is easy to extract them according to the liquefaction temperature of different gases. This is how the liquid oxygen needed in rockets and oxygen needed in industry are done.

As for helium, it is an inert gas and contains very little in the air. It is estimated that it can not be used in this way?

"Refining from the air is inefficient. If it is used in industry, it is extracted from natural gas." of course, the person in charge knows a lot about this. Now Qin Guan began to explain it when he asked.

"At present, this low-temperature condensation method is commonly used in the world. Natural gas is used as the gas source. First, hydrogen sulfide, carbon dioxide, water, even mercury and other impurities in the gas source are purified by chemical methods before entering the low-temperature device. Then, after secondary condensation, crude helium with a helium content of about 60% is prepared. The main magazine contained in this crude helium is hydrogen, This gas needs to be further removed. After several times of purification, helium with a purity of more than 99% is finally obtained. "

This method is indeed complicated enough. Qin Guan nodded seriously: "so, is there little production of helium in our country?"

"There is a part of crude helium, high-purity helium, and we all rely on imports," the person in charge said.

Qin Guan nodded and looked at the cylinder. He also knew how much pressure was on his shoulder.

The industry is all encompassing, and it is not easy to take every part into account. If you don't come here and don't know the industrial production of helium, it will also be a difficult problem in China.

It seems that I have to push myself.

After all, in addition to being used in airships, helium can also be used in many places, even in the military.

For example, the infrared missile seeker is cooled with helium. Many metal materials are welded under the protection of helium. If the oxygen and nitrogen gas inside the submarine is neutralized with a certain amount of helium, it can effectively avoid nitrogen poisoning due to excessive nitrogen; The closed launch boxes of strategic missiles need to be filled with helium to neutralize oxygen, maintain and prevent fire and explosion

The domestic helium industry is quite backward, so it will be restricted in case of special circumstances.

"In the past, our helium demand was not delayed, and we could import a large amount of helium from Eagle country at any time. However, since last year, Eagle country has imposed sanctions on us in terms of helium export, and they strictly prevent these helium from being used in other aspects. Therefore, our helium was imported from bear country at a high price," the person in charge continued.

Like the electronic technology of kimchi country, it looks very advanced, but when the island country cuts off several of the raw materials, the production line of kimchi country immediately falls into the crisis of shutdown. Although the Han country has vast territory, abundant resources and complete industry, it still has a short board. If this short board is not supplemented, it is easy to be stuck by others.

No wonder they have been waiting for helium. Helium imported from foreign countries is very expensive and small. Under the condition of giving priority to military, very few can be used in their civilian projects.

It seems that China should quickly establish enough helium refining plants! This matter will be arranged recently!

"Start filling!" the person in charge shouted loudly after the installation of the gas cylinder. Finally, it was the most exciting time!

In the cylinder, helium looks very small. Now, helium is flowing into the air bag at the top through the pressure reducing valve. The air bag begins to expand and expand. Soon, there is a shape of elongated water droplets!

The first bottle of helium had been filled in, and then the second bottle, the airship's air bag was completely inflated, the rudder surface at the tail was opened, and the ropes tied to the ground were tightened. The airship was ready to go!

"Loosen the cable!"

One by one, the cables were slowly released. With the release of the cables, the airship began to float upward slowly, and it flew up!