Doomsday Bunker Upgrade Chapter 288: Renovation of the boiler

In the shelter of the city 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 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 level in the extremely cold weather. Provided heating and hot water supply, so that some people suffering from hypothermia and frostbite can take a hot bath to relieve the damage caused by long-term low temperature environment.

However, the heat supply of ground source heat pump equipment is limited. If the heating is maintained, the bathroom cannot be opened for a long time. Therefore, the bathroom of the SWAT team can only be opened once in a while, and only people with severe frostbite can enter to wash. Take a hot shower to soothe frostbite.

"Comrade Chen Xin, is there a way to improve the heat supply of the ground source heat pump?" The political commissar stood beside Chen Xin, watched him check the equipment, and asked him with some anticipation: "Thank you The equipment you sold to us at the beginning has really made a difference! 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 throw my 200 jins into the boiler and burn me, I will jump in without you needing to do anything! "

Chen Xin heard what the political commissar said, smiled and shook his head and said, "It's not that exaggerated! If you really want to burn it, it's also burning coal. Burning corpses is a waste of fuel. , what's the use of burning people?"

"Then, Comrade Chen Xin, what materials do you need? I'll let someone prepare it!" The political commissar saw from Chen Xin's attitude that he was well-informed, and hurriedly asked him about the materials needed for the transformation. It seemed that he couldn't wait. I want Chen Xin to transform the ground source heat pump.

"I need to add two compressors, the evaporation tank also needs to be enlarged, and new pipelines need to be added..." Chen Xin casually said nonsense, counted a pass, and then said to the political commissar: "Get the compression of the two air conditioners. Come here, and then get some steel pipes and iron sheets, which should be enough."

As soon as Chen Xin finished speaking, the political commissar hurriedly wanted to turn around to prepare materials, but was suddenly stopped by Chen Xin.

He patted his head as if remembering something, and said to the political commissar: "Another person will be sent to the Polytechnic Institute to inform the people in the scientific research institution, tell them that I am here, and let them send someone over." /

"Okay, I'll arrange it now!" The political commissar saw that Chen Xin finished speaking, and after confirming it, he trotted all the way to arrange what Chen Xin said, while Chen Xin looked at the ground source heat pump in front of him, thinking Is there a better way to increase the heating.

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When Chen Xin was thinking about the renovation of the ground source heat pump, Uncle Ding also reported to the director about the renovation of the boiler. After getting permission, he returned to the SWAT team and found Chen Xin.

"The director has already agreed to rebuild the boiler. Chen Xin, how do you plan to rebuild it? How long will the rebuild take, and does the boiler need to be shut down?" what you care about most.

Chen Xin thought about it and said, "I want to see the boiler first."

"Okay, I'll have someone take you to check the boiler." Uncle Ding nodded and agreed directly.

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Being led to the boiler room of the city police station shelter, Chen Xin walked to the working boiler, listening to the roar of the burning flame in the boiler, feeling the heat wave emanating from the boiler, Clearly nodded.

"It can be changed, no need to stop." Chen Xin turned to look at Uncle Ding, who came with him, and answered his previous question: "However, the transformation requires a lot of things, and I will make a list later. Once the materials are ready, the transformation can begin.”

Hearing Chen Xin say this, Uncle Ding felt a sigh of relief.

How to improve the heating problem in the current extreme cold weather is a problem that plagues all shelters in the urban area. If Chen Xin can solve this problem, even if it is only temporarily solved, it can save many lives. A great deed that makes people put down the big stone in their hearts.

Uncle Ding, who was relieved, hurriedly 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 was enough.

The coal-fired boilers used in medium-sized shelters in urban areas are layer-fired boilers. The advantages of this boiler are that it has less auxiliary equipment, is simple to manufacture and install, and is easy to operate. It is suitable for small and medium-capacity boilers.

However, because its combustion form is to spread the coal blocks on the chain grate for layered combustion, there will be the shortcomings of incomplete combustion and high content of combustibles in **** and fly ash, and the efficiency of the boiler is generally only limited to Reaching 75-85%, there is actually a lot of room for transformation.

Of course, this transformation room is for Chen Xin, who owns the system, because he can completely change the combustion method of the boiler equipment without shutting down and dismantling it, and transform it from an inefficient layer-fired type to one. More efficient chamber-fired or cyclone.

The difference between these two boilers and the layer-fired boiler is mainly in the way of combustion, 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 The degree of full combustion and the efficiency of the boiler are much higher than that of the stratified combustion type.

However, since the raw coal is to be screened, crushed and ground into most of the pulverized coal with a particle size of less than 0.1 mm, and then blown into the furnace for suspension combustion through the burner, the supporting equipment required is more than There are many more layer-fired boilers, and the requirements for the level of automation are also very high.

Such boilers are obviously not suitable for use in small and medium-sized shelters~IndoMTL.com~, but because the chamber-fired boiler can do very large, it is more suitable for use in large shelters.

Therefore, Chen Xin did not choose the chamber furnace as the transformation direction, but chose the cyclone furnace.

Some of the boilers with this combustion method are between the layer-fired furnace and the chamber-fired furnace. The crushed coal particles or coarse coal powder with a particle size of less than 10 mm are first cyclone-fired through a front-mounted cyclone to generate high temperature. After the flue gas enters the main furnace for radiation heat exchange, the coal is fully burned to release heat.

Compared to chamber furnaces, cyclone furnaces can also be made very small, so it is very suitable as a retrofit direction.

The only problem is that the applicable coal type of the cyclone furnace is limited by the melting point of ash and the viscosity of slag; the boiler load fluctuation range is small, and it cannot be started and stopped quickly.

And because the temperature in the furnace can reach about 2000 ℃, the harmful gas NOx emission is large, and the air pollution is serious.

But now it's the end of the extreme cold, boilers are running non-stop, and now the sky is like this, air pollution can only be a little later, let human beings get through this catastrophe first and survive Say it again.