July 1981. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

When Li Feng came back.

Fengchao base is becoming the biggest engine for the development of science and technology in China!

Among them, the ultra-supercritical thermal power unit project has become a key project to organize manpower and material resources and tackle key problems. Because the economic benefits of this project are too obvious, just the saving of coal resources and the reduction of power generation costs are equivalent to greatly enhancing the national strength of the republic.

At the beginning, the national leaders did not realize the gap between the thermal power generation units here and the origin plane.

When the power expert told the leader: "At present, China's thermal power stations generate electricity once, and the average coal consumption is 419 grams!" ”

The No. 1 leader was silent for a long time and said, "Coal consumption is too high! ”

This level, let alone supercritical and ultra-supercritical, even if it is subcritical, it has definitely not been reached.

And then, the thermal power generation of this world has not heard of supercritical units and ultra-supercritical units.

Thermal power units are mainly divided into large-scale units, medium-sized units and small units. It is common sense that large units are more efficient and save coal resources. However, large-scale units have not yet developed in the direction of supercritical and ultra-supercritical units.

The level of the rest of the world, the level of developed countries, is a little ahead of China, but it is also as high as 380 grams of coal per kilowatt-hour.

The normal level of subcritical units should be 320 grams of coal per kilowatt-hour, and even 300 grams of coal per kilowatt-hour of electricity is not impossible, and some subcritical units with higher design levels are almost the same as supercritical units.

Normal supercritical units can basically achieve a coal consumption of 300 grams for generating one kilowatt-hour of electricity.

Then, the ultra-supercritical unit, under normal circumstances, the coal consumption of one kilowatt-hour is less than 280 grams.

Imagine how important this technology is, a little progress, even if it is 100 grams less than one kilowatt-hour of electricity, the country's current annual power generation of 200 billion kilowatt-hours is completed through thermal power generation, saving 20 million tons of standard coal a year. The total cost of coal mining and transportation per ton is 30 yuan per ton, which can save 600 million yuan a year.

Moreover, with the increase of industrial capacity and consumer market in the future, power generation will definitely continue to grow. Moreover, the price of coal will rise in the future, and there is also huge room for growth in electricity demand.

In the long run, ultra-supercritical thermal power technology has the potential to save hundreds of millions of tons of coal every year!

Moreover, only the cost of saving coal is calculated, and the increase in productivity brought to the country by the additional power generation is not calculated.

So, this technology is so necessary!

A large number of power experts are gathering in Beijing, and they are absorbing and digesting information related to supercritical and ultra-supercritical thermal power technology.

The origin world, in the 80s, was all high-tech.

In the world here, the technology and industrial base are very problematic, for example, thermal power stations are not developing in the direction of ultra-supercritical.

So...... On the surface, the black technology in the world here is very cool, but in fact, the level of technology and productivity, on the whole, is really inferior to the origin world.

It is precisely because the productive forces are underdeveloped that they can not do beta!

Science and technology can solve any problem, if it can't be solved, it can only mean that science and technology are not advanced enough, and the level of science and technology needs to be further improved.

The human beings of this world, I don't know why the technology tree is crooked, in terms of some materials and power, it is no less than the level of the origin plane in 2020. Aerospace and space technology is even more advanced than the Origin Plane in 2030.

However...... It's a bit technical, it's not like that!

In the case of the nuclear industry, the MUV World United States blew up Beta landing units in Canada with strategic nuclear warheads in the seventies, frustrating Beta's plans to build a nest in North America. The price is that half of Canada has been polluted, and until the 21st century, more than half of Canada's land is still polluted and uninhabitable.

Any traveler who knows the news is stunned, and it is not a nuclear power plant, but a nuclear warhead. After the bombing of normal nuclear warheads, a few years have passed, and the radiation has been greatly reduced, and twenty or thirty years have passed, which is not much different from the normal area.

So, the MUV world contaminated half of Canada's so-called nuclear weapons, and it is speculated that the cliff is not a real nuclear weapon. Not to mention the hydrogen bomb, even the level of the atomic bomb has not been reached, this thing is clearly a dirty bomb!

Again, there is a problem not only with nuclear weapons, but also with thermal power generation. Supercritical power stations have not appeared, let alone ultra-supercritical thermal power plants.

Why do we need ultra-supercritical thermal power plants? On the one hand, this is a relatively high-tech and high-efficiency power generation method.

In addition, ultra-supercritical thermal power plants, to some extent, are the precursor skills of nuclear power plants.

Unless they don't want to build nuclear power plants, or because of the cost problem and the profit is not enough, most of the power equipment companies that can build nuclear power plants have the ability to build ultra-supercritical thermal power stations.

The equipment company that can build an ultra-supercritical thermal power station actually has the foundation to build a nuclear power plant.

You know, the Middle East and other regions of the world that have a lot of oil reserves, after being occupied by beta, there is a big problem with oil supply. If something goes wrong with oil, it will definitely affect the capacity of other industries and manufacturing industries around the world.

In a sense, the world does not explode the traditional industrial capacity, not because it does not want to explode, but more importantly, because of the lack of energy supply!

……

Early July 1981.

Capital.

Power technology experts from dozens of universities, research institutes and power companies across the country gathered like primary school students, listening to a lecture by a young man under the age of 20.

"Supercritical units and ultra-supercritical units in thermal power plants refer to the pressure of the working fluid in the boiler. The working fluid in the boiler is water, the critical pressure of water is: 22.115MPa, the critical temperature is 374.15C; at this pressure and temperature, the density of water and steam is the same, it is called the critical point of water, the working fluid pressure in the furnace is lower than this pressure is called subcritical boiler, greater than this pressure is the supercritical boiler, the steam temperature in the furnace is not less than 593C or the steam pressure is not less than 31MPa is called ultra-supercritical. ”

"According to our division, thermal power plant units are divided into the following types - Low-temperature and low-voltage power plants (1.4MPa, 350 degrees), medium-temperature and medium-voltage power plants (3.92MPa, 450 degrees), high-temperature and high-pressure power plants (9.9MPa, 540 degrees), ultra-high pressure power plants (13.83MPa, 540 degrees), subcritical pressure power plants (16.77MPa, 540 degrees), supercritical pressure power plants (22.11MPa, 550 degrees), ultra-supercritical pressure power plants (31MPa, 600 degrees)! ”

"What are the benefits of thermal power plants reaching subcritical, supercritical and ultra-supercritical? First of all, the efficiency has been greatly improved, and less coal is consumed per kilowatt-hour of electricity. The original more than 400 grams of coal has gradually increased to 350 grams, 320 grams, 300 grams, 280 grams, and even 250 grams due to the improvement of generator sets. That is to say, one ton of standard coal, tapping the technical potential of thermal power units can achieve power generation of 4000 kWh! Now, because of our lack of technology, a lot of coal is wasted, and because of insufficient combustion, the pollution is also serious. The more advanced the unit, the more fully combusted, and the pollution to the atmosphere will also be reduced. ”

"Basically, many small thermal power stations in China even have low temperature and low pressure, medium temperature and medium pressure. Unless the factory uses waste heat to generate electricity, it should be eliminated immediately. ”

"The future plan is to focus on supercritical and ultra-supercritical units. Of course, subcriticality has not yet been achieved...... First of all, our first step is to get the subcritical unit out as soon as possible! ”

Zhang Xiaoping, who temporarily clung to his feet and acted as a master of thermal power technology, was responsible for tackling key problems in supercritical and ultra-supercritical. In fact, he is not an authority on thermal power, but he reads the materials of the parallel world according to the script, and distributes the materials to the experts present.

The experts present are basically the authorities of major domestic power plants and power research institutions, and they are the main force in tackling technical problems.