Chapter 288: Retrofit boiler

In the refuge of the municipal police station, in the room where the SWAT team installed the ground source heat pump, Chen Xin has taken off his power armor and is standing next to the ground source heat pump to check the condition of the equipment.
For the current SWAT team, the ground source heat pump is a very important piece of equipment. It is precisely because of the existence of the ground source heat pump that the SWAT team can still maintain a certain amount of heating and heating in this extremely cold weather. Hot water supply allows some people suffering from hypothermia and frostbite to take a hot bath to relieve the damage caused by long-term low temperature environment.
However, the heat supply of the ground source heat pump equipment is limited. If the heating is maintained, the bathroom cannot be open for a long time. Therefore, the bathroom of the SWAT team can only be opened once every time, and only people with severe frostbite can go in and wash hot water. Take a bath to relieve frostbite.
"Comrade Chen Xin, is there a way to increase the heat supply of the ground-source heat pump?" The political commissar stood beside Chen Xin, watching him check the equipment, and asked him with some expectation: "Thanks to your original sales. The equipment given to us has really played a big role! Can you think of a way to make the equipment produce more heat?
Now we really need more hot water! If you can do it, whatever you need, just speak up! Even if I threw two hundred jin in the boiler and burned it, I would jump in without you having to do it! "
Chen Xin heard the political commissar saying this, smiled and shook his head and said: "It's not so exaggerated! It is really burning coal. Burning a corpse is a waste of fuel, and the combustible content of the human body is too low! Besides, what is needed to rebuild the equipment is materials. Got to burn people?"
"Then Comrade Chen Xin, what materials do you need? I'll let people prepare it!" The political commissar saw from Chen Xin's attitude that he was already confident, and hurriedly asked him what materials are needed for the transformation. Chen Xinlai modified the ground source heat pump.
"I need to add two compressors, the evaporator needs to be enlarged, and new pipes are added..." Chen Xin casually said to the political commissar after counting, "Get two compressors for air conditioners. Then get some steel pipes and iron sheets. These things should be enough."
As soon as Chen Xin's voice fell, the political commissar hurriedly wanted to turn around to prepare materials, but was suddenly stopped by Chen Xin.
He patted his head as if thinking of something, and said to the political commissar: "Another person is sent to the polytechnic to inform the people of the scientific research institution, tell them that I am here, and let them send someone over."
"Okay, I'm going to make arrangements!" Seeing Chen Xin finished speaking, the political commissar confirmed that he had only trot all the way to arrange what Chen Xin said, while Chen Xin looked at the ground source heat pump in front of him, wondering if there was any Better ways to improve heating.
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While Chen Xin was thinking about the renovation of the ground source heat pump, Ding Shu also reported to the director of the boiler renovation. After obtaining permission, he returned to the SWAT team and found Chen Xin.
"The director has agreed to renovate the boiler. How do you plan to renovate Chen Xin? How long does it take to renovate? Does the boiler need to be shut down?" Uncle Ding approached Chen Xin, and did not treat him politely, so he directly asked Chen Xin what he cares about most. Things.
Chen Xin thought for a while and said, "I want to see the boiler first."
"Well, I'll let someone take you to inspect the boiler." Uncle Ding nodded and agreed directly.

He was led to the boiler room of the refuge of the municipal police station. Chen Xin walked to the boiler that was working, listening to the rumbling sound of the burning flame in the boiler, and feeling the heat wave emitted by the boiler. Nodded.
"It can be changed, there is no need to stop it." Chen Xin turned to look at Uncle Ding, who was with him, and answered his previous question: "But the transformation requires a lot of things. I will make a list later, and the relevant materials are ready. , You can start the transformation."
Hearing what Chen Xin said, Uncle Ding suddenly felt relieved.
How to improve the heating problem in the current extreme cold weather is a problem that plagues all refuges in the urban area. If Chen Xin can solve this problem, even if it is only temporarily solved, it can save many lives and it is letting go. The great thing about Dashi in my heart.
Uncle Ding, who was relieved, urged Chen Xin to list the materials needed for the transformation.
Chen Xin agreed. He didn't take a closer look around the boiler. For the system, just seeing the boiler is enough.
The coal-fired boiler used in the medium-sized refuges in the urban area is a layer-fired boiler. This boiler has the advantages of less auxiliary equipment, simple manufacture and installation, easy operation and operation, and is suitable for small and medium-sized boilers.
However, because its combustion form is to spread coal blocks on the chain grate for layered combustion, it has the disadvantages of incomplete combustion and high combustible content in and fly ash. The efficiency of the boiler is generally only 75- 85%, there is actually a lot of room for transformation.
Of course, this room for modification is for Chen Xin who owns the system, because he can completely change the combustion method without shutting down or dismantling the boiler equipment, and transform it from an inefficient stratified combustion type to a more efficient one. Chamber combustion or cyclone.
The difference between the two boilers and the layer-fired boiler is mainly in the combustion method, because both of them use the method of completely crushing the coal into pulverized coal and then fully burning the coal, so whether it is fully burned The degree of boiler efficiency is much higher than that of stratified combustion.
However, because the chamber-burning furnace needs to screen, crush and grind the raw coal into most of the pulverized coal with a particle size of less than 0.1 mm, and then blow it into the furnace through the burner for suspension combustion, the necessary supporting equipment is more than the layer-fired type There are many more boilers, and the requirements for automation level are also high.
Such a boiler is obviously not suitable for use in small and medium-sized shelters~EbookFREE.me~ But because the room-burning boiler can be made very large, it is more suitable for use in large-scale shelters.
Therefore, Chen Xin did not choose the room-burning furnace as the transformation direction, but chose the cyclone furnace.
Some of the boilers with this combustion method are between the layer-burning furnace and the chamber-burning furnace. The crushed coal particles or coarse coal particles with a particle diameter of less than 10 mm are first burned in a cyclone through a front-mounted cyclone, and high-temperature flue gas is generated. Then enter the main furnace for radiant heat exchange, so that the coal is fully burned to release heat.
Compared with the chamber furnace, the cyclone furnace can also be made smaller, so it is very suitable to be used as a transformation direction.
The only problem is that the applicable coal type of the cyclone furnace is limited by the ash melting point and the viscosity of the slag; the boiler load changes in a small range and cannot be quickly started and stopped.
And because the temperature in the furnace can reach about 2000°C, the harmful gas NOx emission is large, and the air pollution is serious.
But now it's extremely cold in the last days, and the boilers are always running, and now the sky is like this, air pollution and other things can only go back a little bit, let humans survive this catastrophe and survive.