Chapter 139 Ultra-supercritical Generator Sets
Chapter 139 Ultra-supercritical Generator Sets
Fang Nanbo carefully read the project application report written by Wang Haoran.
After reading it, he nodded and said, "This topic is so meaningful!"
"Comrade Haoran, what kind of support do you need?"
Wang Haoran smiled and said, "I need to inspect our power plant and study the current status of the generator sets. Then, I can develop and design more advanced thermal power generator sets in a more targeted manner."
Fang Nanbo waved his hand and said, "This is a trivial matter! Whichever power plant you want to go to, I will have someone accompany you and try to make the research more comprehensive and in-depth."
Wang Haoran said: "Let's go to the Guohua Thermal Power Plant."
This power plant is the earliest built and currently the largest thermal power plant in the Beijing area.
It mainly uses the technology provided by Daxiong. After its completion, it has made outstanding contributions to the power supply in the Beijing area.
Fang Nanbo smiled and nodded, saying, "Guohua is a very representative factory."
"If we can really develop advanced domestic thermal power units in the future, it is very likely that we will install them there first."
"Alas! Our country can only produce small thermal power units with a maximum capacity of 5 kilowatts! The power is too small. Moreover, the manufacturing process is also very slow."
In fact, Longguo has been researching and developing a thermal power generating unit with a capacity of about 30 kilowatts, but after decades of efforts, it has not been able to complete it.
The main reason is that the production equipment is relatively backward, which leads to the inherently low efficiency of manufacturing large equipment.
However, the production equipment of Beijing Machine Tool Factory has been greatly improved.
This is mainly because Wang Haoran has always cooperated with Beijing Machine Tool Factory.
In the process of working with them, Wang Haoran naturally had to help them upgrade their equipment.
Today, Beijing Machine Tool Factory already has a series of precision CNC machine tools, which can process more complex and sophisticated parts.
……
The next day, Wang Haoran went to Guohua Power Plant for investigation.
When he went there, he was taken there by a car sent by the Ministry of Electric Power Industry, and was personally accompanied by Meng Xiangfeng, a director in charge of the ministry.
When Wang Haoran arrived at the gate of the power plant, he saw a welcome banner hanging above the gate.
"Warmly welcome comrade Wang Haoran to visit our factory for guidance!"
Wow, it seems that this factory attaches great importance to Wang Haoran’s arrival.
However, when he arrived near the factory, Wang Haoran felt that the air was gray. If he took a measure, the pollution might have exceeded the limit.
The current thermal power plants in our country generally cause quite a lot of pollution.
Especially in the workshop, even wearing a gas mask is useless. One tenth of the air you breathe is dust.
It would be strange if you could maintain good health if you work in such an environment for a long time.
The car stopped at the gate of Guohua Factory.
Lin Zhijian, the director of Guohua Factory, personally came with some factory leaders to greet them.
Lin Zhijian is not tall, only about 1.6 meters tall, but he has a loud voice and is full of energy, giving people an uplifting feeling.
"Comrade Haoran, Comrade Xiangfeng, welcome!"
After exchanging a few pleasantries at the factory gate, Lin Zhijian took Wang Haoran to visit the power generation workshop of Guohua Factory.
Although he was wearing a mask, Wang Haoran could still feel the extreme turbidity of the air.
This power plant is too dirty.
There was a thick layer of coal dust everywhere.
During the visit, Lin Zhijian also introduced: "Yesterday, some important units in the Beijing area had a short power outage, mainly because one of our 10-kilowatt generators had a fault."
"Our generator set is overloaded!"
"According to regulations, production needs to be stopped for maintenance once a week."
"However, due to the high pressure on power supply, maintenance often has to be postponed."
“As a result, something went wrong.”
Lin Zhijian said with emotion.
Meng Xiangfeng said: "Comrade Haoran came to visit and investigate this time, mainly to see if he could help us improve the generator set and strive to increase efficiency. By the way, he is also doing research on a domestically produced large-scale ultra-high voltage generator set."
Lin Zhijian was very happy when he heard it: "Really? That's great!"
"Alas! Our current generators are too old and prone to various problems. It's really time to upgrade them."
"Comrade Haoran, if you want to know anything, I will fully cooperate."
Next, Wang Haoran conducted research at the Guohua Factory for two days.
He found a bunch of problems.
The generators at the Guohua Factory were all built in the 50s. They have been in use for more than 20 years and have long been overloaded.
Now it can be said that it is barely maintaining operations.
Wang Haoran made up his mind to come up with a design plan for the 60-kilowatt ultra-supercritical thermal power unit as soon as possible.
He can come up with a design plan and guide the power department in processing and production.
We will strive to install and debug the new ultra-supercritical unit by the end of this year and connect it to the grid for power generation.
After Wang Haoran returned from Guohua Factory, he began to retreat.
Every day I spread out the drawing paper in my office and start drawing design plans.
Because I already have the idea in my mind, the process is quite fast.
It took him 9 days to finish all the design drawings.
His set of drawings is very detailed, clearly marking the production size standards of each component.
These designs include: optimized design of the main plant, large floor-standing low-pressure inner cylinder, single-row configuration of the air preheater of the 60-kilowatt ultra-supercritical boiler, single-row arrangement of large axial flow fans with adjustable moving blades, etc.
This design project is huge.
The most important thing is that Wang Haoran has even written out the production formula of heat-resistant materials in his design.
The heat-resistant materials required for ultra-supercritical units are very important.
After all, the entire power generation unit, especially the ultra-supercritical boiler, needs to withstand very high steam temperatures and great pressures.
Generally speaking, ultra-supercritical thermal power units use nickel-based heat-resistant alloy materials, but the processing requirements of this alloy material are also extremely high.
Of course, there are also some new heat-resistant steels like T91, P91, T92, P92, etc. that can be used.
The development of new materials is also something that must be accelerated.
After the drawings came out, Wang Haoran led his colleagues from the Department of Materials and the Department of Mechanical Engineering of Beijing Institute of Technology and spent another half a month to develop the new material in the laboratory.
At the same time, they also built a small ultra-supercritical thermal power unit using a proportional scaling method.
Without the help of the research fund provided by the Ministry of Electric Power, it would not be easy to accomplish the above tasks on such a large scale.
After the research results came out, Wang Haoran immediately called Fang Nanbo, the head of the Ministry of Electric Power Industry.
When Fang Nanbo heard that Wang Haoran had achieved results in less than a month, he was a little skeptical.
"No way? It can be done so quickly? We have gathered scientific researchers from all over the country to tackle the 20-kilowatt thermal power unit for 15 years, but there is still no result!"
Meng Xiangfeng smiled and said, "Leader, we can't discourage the enthusiasm of young people. Go over and take a look. If the problem is serious, give some suggestions so that they can find a direction for improvement."
Fang Nanbo nodded and said, "Then let's ask the experts from the National Electric Power Design Institute to go and take a look."
The president of the State Electric Power Design Institute is Xiao Tiejun.
Xiao Tiejun is also the host of the scientific research project of 20-kilowatt thermal power units.
His project is still a subcritical unit. After 15 years of work, it has barely come to fruition. Recently, he plans to try to build a domestically-made 20-kilowatt subcritical thermal power unit for trial production.
Xiao Tiejun naturally already knew that Wang Haoran was planning to build a 60-kilowatt ultra-supercritical thermal power unit.
When he heard the news, he felt a little disdainful.
He thought the young man was a little too crazy.
He led the team for 15 years and finally made some progress in building a 20-kilowatt subcritical thermal power unit.
He was good. He wanted to build a 60-kilowatt unit right from the start, and it was an ultra-supercritical unit.
This courage is really too strong.
Xiao Tiejun felt that Wang Haoran was nothing, it was just that things had gone so smoothly for him before, so he thought he could handle everything!
The generator set is not that easy to deal with.
Fang Nanbo summoned Xiao Tiejun and a group of experts from the National Electric Power Design Institute to come to Beijing Institute of Technology. Xiao Tiejun was a little surprised that Wang Haoran's achievement had already produced a small-scale sample of the same proportion.
Accompanied by Wang Haoran, Fang Nanbo, Xiao Tiejun and others walked into the experimental workshop of Beijing Institute of Technology.
Now, in the open space of this huge workshop, there is a sample of an ultra-supercritical thermal power unit that has been reduced by 10 times.
As the saying goes, amateurs watch the fun, and experts watch the doorway.
When Xiao Tiejun and other experts from the Electric Power Design Institute saw this set of proportional samples, they were all shocked.
"There's something..." Xiao Tiejun thought to himself.
Wang Haoran has already started taking Fang Nanbo to visit the sample of the 60-kilowatt ultra-supercritical thermal power unit he built.
He introduced it to Fang Nanbo.
Wang Haoran talked about the various technical parameters, the difficulties in design and manufacturing, and the actual results that can be achieved during experiments.
Wang Haoran came up with all kinds of detailed data at will. He was very confident and professional.
Fang Nanbo nodded repeatedly and said with a smile: "Very good! It seems that your design plan can now enter the practical stage."
Fang Nanbo still had some doubts in his heart, but now he felt that Wang Haoran's design plan should be worth a try.
At this time, Xiao Tiejun said at the side: "Comrade Haoran, how is the sample you made? Can you try to run it?"
"It looks pretty realistic to me. It shouldn't be an unusable model, right?"
Wang Haoran smiled and said, "Teacher Xiao, the reason why I call it an equal-proportion sample of the 60-kilowatt ultra-supercritical unit is because it can actually be operated directly."
“We’ve actually tested it using it to generate electricity.”
Fang Nanbo was a little moved when he heard it: "Ah?! I thought it was just showing it to us."
“Does it really work?”
Wang Haoran said: "Of course it can be used."
"However, it consumes a lot of water and wastewater discharge is also a problem. We discharge it directly into the sewer."
"Comrade Minister, how about we test it again now?"
Fang Nanbo's interest was high now. He waved his hand and said, "Give it a try and see what happens."
"By the way, how do you deal with the electricity you generate?"
“We are directly connected to the grid,” Wang Haoran said.
“However, we also used special instruments to measure the amount of electricity generated when feeding it into the grid.”
Xiao Tiejun said: "Then give it a try and see if your design can meet the standards."
Xiao Tiejun was also a little confused at this moment.
He thought to himself, could it be that this young man really succeeded?
Wang Haoran and his colleagues began to operate the sample of this ultra-supercritical unit.
Soon, the machine began to roar.
Xiao Tiejun stared with eyes wide open and observed carefully. He found that although this unit was just a sample, it was indeed no different from a normal generator set.
Oh no! This unit has many features that are different from traditional units.
The most important thing is: it has an additional automatic control function, and the data on the equipment shows that the operation of this unit is controlled by a central control computer.
Moreover, when this unit is running, there is no smoke or dust, and there is no obvious air pollution in the workshop.
Soon, the unit generated electricity and the numbers on the ammeter changed rapidly.
The test light naturally lights up, and you can see that the current emitted is very stable.
Only at this moment was Fang Nanbo truly shocked.
He was even more surprised when Wang Haoran asked him to pay attention to the temperature of the steam inside his brain.
In the ultra-supercritical boiler, the steam temperature has reached as high as 600 degrees!
You can feel the strong hot steam rushing through the pipes towards the steam turbine.
The generator set was tested for one hour.
During this one hour, the entire test workshop was very quiet. No one spoke, only the roar of machines.
"Leader, our coal for power generation is almost used up, and we need to stop the generating set." Wang Haoran said to Fang Nanbo.
Fang Nanbo nodded and said, "Okay, okay! Stop!"
"Just the one hour of operation just now is enough to prove that you have come up with a groundbreaking invention! Haha!"
Fang Nanbo was extremely excited at this moment.
He didn't expect that Wang Haoran could actually solve the big problem of advanced generator sets!
You know, it is simply impossible for Longguo to import such advanced ultra-supercritical coal-fired power generation units from abroad now!
They will only sell you outdated generators and charge you a very high price.
Now, Wang Haoran's major invention has been verified and is indeed very advanced. The steam temperature of its steam boiler can reach 600 degrees, and its coal-fired power generation cost is very economical. According to the current data, only to grams of coal are needed to generate one kilowatt-hour of electricity.
But the price of coal nowadays is only about 1 cent per pound!
The old coal-fired power generation units used in the country require more than one pound of coal to generate one kilowatt-hour of electricity!
The effect of saving coal is too great.
Not only does it save coal, but the key is that it is also extremely clean. If it is promoted and used, the workshop will no longer be filled with dust.
The generator stopped.
Fang Nanbo took the lead in applauding.
There was warm applause in the workshop.
Fang Nanbo clapped and nodded, his heart was burning with excitement.
He really wanted the ultra-supercritical coal-fired power generation unit invented by Wang Haoran to be put into practice as soon as possible.
This is a 60-kilowatt unit!
It can generate up to 60 kWh of electricity in an hour, and up to 1440 million kWh of electricity per day!
The electricity generated by one unit is enough for daily use by nearly one million households in Beijing.
If two sets can be installed in the Guohua factory, the power shortage will disappear.
When the applause died down, Fang Nanbo strode to Wang Haoran, shook his hand tightly and said, "Comrade Haoran, thank you!"
"You have made a particularly great contribution to the development of the country's power industry this time!"
"We must reward your team handsomely! In addition, we must also announce the commendation within the system."
Wang Haoran smiled and said, "Thank you for your recognition!"
"I hope this generator set can be processed and produced as soon as possible, and strive to install more of it, so that the shortcomings in our country can be greatly reduced."
Fang Nanbo said, "I will arrange it right away after I get back. By the way, have you already got the complete set of process manufacturing design drawings?"
Wang Haoran nodded: "Yes, the leader can take the drawings back later."
"Besides, because I have other work, I will not fully participate in the production, installation and commissioning of this ultra-supercritical generator set. I will cooperate at any time if you need me."
Fang Nanbo smiled and nodded, saying, "I know you are a very busy man, but our power industry really needs people like you to pay more attention to it."
After chatting for a few minutes, Fang Nanbo left with the complete set of drawings compiled by Wang Haoran's team.
After Fang Nanbo returned, he immediately reported to the chief designer.
The designer was also very happy to hear this: "Comrade Haoran has made a great contribution again this time! Haha!"
"We will immediately organize a major campaign to promote this energy-efficient 60-kilowatt generator set across the country!"
"I hope that our power generation can quadruple in the next three years! More than 4000 billion kWh of power generation per year is really too little! We must reach an annual power generation of 2 trillion kWh to ensure production and living needs!"
Fang Nanbo originally planned to announce the commendation to Wang Haoran's team within the system, but later canceled it.
Because the designer also feels that it is better to be low-key at this time, and not to publicize every good thing, so as not to arouse the jealousy of others.
In the following period of time, the ultra-supercritical coal-fired power generation unit developed by Wang Haoran's team entered the processing and manufacturing stage.
Because the drawings are detailed enough and the equipment of the processing and manufacturing party, Beijing Machine Tool Factory, has been fully upgraded, the processing and manufacturing speed is still quite fast.
Of course, Wang Haoran has already put his main energy back into writing computer application software...
2nd update! More than 1.1 words updated today, please subscribe
(End of this chapter)