In order to make a steam engine, Chen Chen led the workers to Shengzhou, originally planned to make it in Kyoto, but after all, Shengzhou as an industrial base, all the construction and facilities are relatively complete, and at the same time, the natural resources are relatively rich, and there are related personnel and equipment, so they had to go to Shengzhou to start construction, and the financial and material resources of the whole country are also concentrated here. (8) (1) Chinese Network ┡.81.

Looking at the drawings, Chen Chen began to think about the working principle of the steam engine, the working principle of the steam engine, which is mainly to use the power of steam to promote the operation of machinery, so the power of water vapor must be strong enough.

If the power of water vapor is strong enough, then the pressure must be increased, and as soon as the pressure is mentioned, Chen Chen immediately thought of the principle of the pressure cooker.

The principle of pressure cooker: generally speaking, the higher the pressure, the higher the boiling point of water, and the boiling point of water is 1oo degrees Celsius under standard atmospheric pressure. The pressure cooker is highly sealed to make the air pressure in the pot higher than one atmosphere of standard pressure, so that the water temperature can exceed 1oo degrees Celsius, so as to achieve the purpose of shortening the cooking time and saving energy.

Then the principle of the steam engine and the principle of the pressure cooker, there is a little similarity, and it is no exaggeration to say that to a certain extent, the steam engine is an enlarged version of the pressure cooker, using strong air pressure to produce strong power.

After several days, Chenchen finally figured out the principle of the steam engine, and according to his own ideas and knowledge, he designed his own routine with reference to the existing technology, although I don't know how effective it is, but I have to try it.

Under Chen Chen's command, the workers quickly made the parts using steel: a cauldron about one meter high, its upper end is a cauldron, and the bottom of the pot is a cylindrical channel, and the bottom of the channel is a groove.

The bottom groove is used to hold burning items such as coals, the inside of the pot is filled with water, and the upper part of the pot is a sealed lid with two metal pipes on top of the lid and a valve on the top of the pipe to detect the power of the water vapor.

The production of parts is not difficult, the main thing that is difficult is assembly and improvement.

In order to ensure the strength of the air pressure, Chen Chen asked the workers to seal the machine tightly, and at the same time, some places even used gold to Watanabe, in order to ensure that the steam engine would not explode due to high temperature and high pressure.

Although the structure of this steam engine is relatively simple, and even a little different from Watt's steam engine, fortunately, the working principle is basically the same, and at the same time, in order to calculate the pressure, Chen Chen also carried out rigorous calculations, and the structural design of individual places also took a lot of thought.

The length of each material, the width of each material, and the thickness of each material are carefully selected, so Chen Chen also hopes to succeed.

It took several days to finally build the steam engine. But its efficacy really needs to be investigated.

This morning, Chen Chen and everyone completed the final finishing work and began to test the steam engine.

The soldier quickly filled the pot with water, and looking at the muddy water, Chen Chen couldn't help but be stunned: "Where did all this water come from?" Why is it so turbid, if the sediment hinders the operation of the machine, then it will kill people, change the water immediately. ”

"Your Majesty spares your life, Your Majesty spares your life, the minister thought it was water, but he didn't expect that water was also particular, so the minister changed it." When the relevant personnel in charge of the work saw it, they were so frightened that they kowtowed again and again, and immediately moved out new clear water according to Chen Chen's instructions.

"Cover the pot." Chen Chen said to everyone.

The crowd nodded, and quickly knocked the lid off the pot and put it on the pot, and then made a fire in the groove underneath, and the wood and coal were quickly thrown into it.

After doing all this, everyone watched intently at the movement of this steam engine.

Time passed little by little, and the sound of burning flames could be heard in his ears, but there was no movement in the pot, and Chen Chen couldn't hold it back.

"Why hasn't there been any movement yet?" Chen Chen was stunned for a moment, with such a large sealing strength, there should be a reaction at this point in time.

Chen Chen stretched out his hand and touched it, the bottom of the steam engine was particularly hot, but the upper part was particularly cold, and it seemed that the heat was not transferred to the pot at all.

"Extinguish the fire and cool down." Chen Chen immediately commanded his entourage, and the entourage immediately stopped putting fuel, and quickly got out the fuel that had not been burned out, and everyone poured water on the hot bottom to cool down.

After the temperature cooled down, Chen Chen reached out and touched inside: "Who did this?" How to seal the bottom of the passage mouth, how to go up so that the heat goes up, and immediately remove the seal. ”

When the other workers heard this, they hurriedly stepped forward to deal with it, and half a day passed for this treatment.

In the afternoon, the workers had finally finished their work, and they had added wood and coal to the bottom, and began to wait for the movement.

This time, Chen Chen touched it with his hands from time to time to make sure that there was temperature on it before he could relax his heart.

After waiting for a long time, the machine finally changed, and a buzzing sound came out, as if the water was boiling, and then the valve at the pipe mouth on the top of the pot lid was about to vibrate.

"Quickly add stones to the valve and see how strong it is." Seeing the simple steam engine reacting, Chen Chen was also happy, and hurriedly asked people to add weight.

Everyone quickly added the stone, and as soon as the stone went up, it suppressed the beating valve, Chen Chen looked a little deflated, is this a failure?

But before he could come back to his senses, the valve slammed and shook the stone out.

"It's successful, it's successful, it seems to be a success, if the time comes to add a piston to the pipe mouth, and the water vapor Cui Dong piston moves, then the ship or locomotive can run with the help of a steam engine, and Dongshui can be regarded as officially stepping into the mechanical age, quickly, historian, write it down." Looking at the scene in front of him, Chen Chen's excited words did not reach his senses.

Seeing Chen Chen so happy, although everyone didn't know why His Majesty was happy, as a minister, he still had the ability to observe words and feelings, and immediately cheered loudly with His Majesty.

After Chen Chen was happy, he quickly came back to his senses, after all, this steam engine was only a semi-finished product and there were still too many parts.

A complete steam engine has a large number of structural parts, mainly composed of cylinders, bases, pistons, crank connecting rod mechanism, slide valve distribution mechanism, adjusting mechanism and flywheel.

In a steam boiler, water is boiled into steam through the combustion process, and steam is sent to a cylinder through a pipeline. The valve controls the time when the steam arrives at the cylinder, enters the slide valve chamber through the main steam valve and the throttle valve, and is controlled by the slide valve to alternately enter the left or right side of the cylinder to push the piston to move. The steam pushes the piston inside the cylinder to do work, and the cooled steam is introduced through the pipe into the condenser to recondense into water, a process that is repeated as the steam engine moves.

The general steam engine has three cylinders to form a group, the steam engine directly converts the up and down movement of the piston into the rotary motion of the ship's shaft, and the machine must also contain a small turbine, the steam from the cylinder can use its waste heat to drive the turbine to improve the efficiency of the entire driving device, and the turbine is also connected with the ship's propeller shaft, and then realize the operation.

Therefore, there is still a long way to go in the renovation work, and now we have to suppress our mood and continue to study. (To be continued.) )