"Since there is no physical reference, I dare not say that supercritical and ultra-supercritical units can be done. Pen ~ fun ~ pavilion www.biquge.info" Ma Shengli, an engineer of BJ Shijingshan Power Plant, raised his hand and said, "However, our factory has greatly improved the power generation efficiency through technological transformation. I can responsibly say that the unit may have reached a subcritical state - originally our plant was 400 grams of standard thermal coal per kilowatt-hour, but after the technical transformation, it was greatly reduced to 340 grams of coal per kilowatt-hour of electricity. ”

"What, 340 grams of coal for one kilowatt-hour? How did Shijingshan Power Plant have such a technical level? ”

"It's not scientific!"

"Even the USSR and the United States, such an advanced level does not possess universal ****!"

After Ma Shengli, an engineer of Shijingshan Power Plant, pretended to be forced back, all of a sudden, many experts on the scene seemed to explode!

The Shijingshan Power Plant is a century-old power plant in the capital, and it has begun to generate electricity at the end of the Qing Dynasty. Today, it is still one of the main power plants in Beijing. In the beginning, the local coal in the capital alone could supply the power plant for power generation, but with the development of the years, it has been necessary to buy a large amount of coal from other places to meet its power generation needs.

As a large-scale power plant, Shijingshan Power Plant consumes more than 10,000 tons of coal every day, and more than 3 million tons of coal a year. Although it is a large-scale thermal power station, it only achieves high temperature and high pressure, and does not reach the critical level!

Because the coal is not burned sufficiently, the air around Shijingshan is blackened.

Therefore, its technological transformation, if successful, is very meaningful.

Environmental significance aside, ordinary coal-fired power plants can save a lot of coal by upgrading to a subcritical state and burning more fully.

"Are you sure?" Zhang Xiaoping asked.

"Sure!" Ma Shengli said, "I guarantee with party spirit and character that 340 grams of coal is one kilowatt-hour of electricity!" Just try to change according to the technical data, the cost is negligible! ”

In fact, there is also a difference between subcritical, supercritical, and ultra-supercritical units.

Some subcritical units are better and can reach the level of supercritical units. There are also some supercritical units that are more water-based, and their power generation efficiency is only equivalent to subcritical. There are also some supercritical units, which are more efficient than some ultra-supercritical units.

But this is not absolute, generally speaking, the challenge of skipping is not an opponent of a level, it is a small probability to win, and it is a high probability to lose.

Generally, ultra-supercritical units are normally 300 grams of coal per kilowatt-hour of electricity, and even can continue to tap the potential, reaching 280 grams, 270 grams, 260 grams and even 250 grams.

The ultra-supercritical thermal power station in the origin world is already 220 grams of coal per kilowatt-hour, of course, it is related to supercritical and ultra-supercritical for decades. After the ultra-supercritical thermal power station reaches 270 grams of coal per kilowatt-hour, the difficulty of technical improvement needs to increase exponentially for every additional gram saved.

Of course, the development of China's supercritical and ultra-supercritical in the origin world is actually relatively late. It's just that after others have given up, China is still engaged in it, and it continues to break the world record.

In the history of the origin plane, supercritical units were introduced on a large scale, because RB and other countries felt that they wanted to build nuclear power plants, so they began to sell a number of old supercritical units to China in the 80s.

Subsequently, China began to vigorously develop supercritical units in the 90s, and supercritical units were definitely advanced in the 90s. However, at the beginning of the 21st century, China has been on a large scale to supersupercritical.

Moreover, many supercritical units are more supercritical than the international ultra-supercritical, of course, because there is no academic ultra-supercritical statement, so those ultra-supercritical units with higher efficiency are still called ultra-supercritical units.

In other words, underestimating the bias of this world's tech tree.

Obviously, they have all entered space, and the thermal power station is so inefficient. Moreover, it is not a single thermal power station in China. The United States is not good, the data reality of American thermal power plants in the world here, their level is also in a subcritical state, which is similar to the efficiency of thermal power plants during World War II.

After the war, they patronized space, and as a result, they neglected to develop the productive forces on the earth, and the United States, which originally vigorously engaged in supercritical and ultra-supercritical, actually did not engage in it. Although its coal-fired power plants consume a little less coal than China's, their large-scale coal-fired power plants generally consume about 350 grams of coal per kilowatt-hour of electricity.

Next, a large number of technical experts went to the technical transformation unit of Shijingshan Power Plant to conduct real tests. In order to prevent fraud and misrepresentation of the results of the power plant, the coal was procured by the expert group separately. In addition, the crew of the crew was also replaced by specialists.

The expert group then counted the energy meter on the one hand and the coal consumption on the other.

After three days and three nights of continuous testing, the unit kept generating electricity and statistics.

"The lowest is 325 grams per kilowatt-hour, and the highest is 345 grams per kilowatt-hour. The average data is stable at about 332 grams per kilowatt-hour, so it can be said that the unit is running stably, and the electricity per kilowatt-hour does not exceed 340 grams of coal. An electric power expert from the Chinese Academy of Sciences said excitedly, "In other words, the technical transformation of the Shijingshan plant is completely deceptive, and it should meet the standard of subcritical units!" ”

Next, the scene was shocked and cheered.

Zhang Xiaoping asked: "Which workers have made major contributions and outstanding contributions to the technical transformation of the unit?" ”

"Chen Dabang has a flexible mind and has thoroughly eaten a certain technical drawing, which means that the unit of our factory can meet the standard with a little transformation." The factory director said proudly, "There are more than 30 skilled workers in the factory, all of whom took the risk to cooperate with him to fool around, and it turned out to be true!" ”

"For meritorious personnel, should they be rewarded?" Zhang Xiaoping asked.

"Yes, definitely, our factory will not treat meritorious workers badly, and will hold a commendation meeting for them, and each person will be given an extra 50 yuan!" The director said.

"Wait, more than 30 people have 50 yuan each, and it's only 2,000 yuan, so what's going on?" Zhang Xiaoping said, "The reward is very merit mismatch, so let's do it, the main credit of the worker Chen Gong, I think 1 million is less, but considering that the average salary in our country is not high, such a reward will definitely not work, so, 100,000 or a set of commercial housing in Beijing." Other workers involved in technical improvement, 30,000 yuan each! ”

At present, the Shijingshan power plant consumes 10,000 tons of coal per day. A quarter of the units have obtained higher benefits through technological transformation. It is conservatively estimated that 300 tons of coal will be saved per day.

According to the price of 20 yuan a ton of purchase cost of the power plant, the cost of the power plant will be saved by 6,000 yuan a day, and the benefit of saving coal in a year can be increased by 2 million yuan.

This is still a unit transformation, conservative estimates, there is another unit that can be technically transformed. It can also save 4 million yuan for the power plant in one year.

In fact, excluding the depreciation of machinery, power grid transmission loss, labor, warehousing, logistics, taxation and other expenses, only the largest expenditure of thermal power plants is calculated by the power generation per ton of coal, electricity price, and coal price. The current electricity price of BJ is 7 cents per kilowatt-hour, and after the technical transformation, 3,000 kilowatt-hours of electricity can be generated per ton of coal, and the price is 210 yuan. The coal purchased by the power plant is currently only 20 yuan a tonne.

In other words, 20 yuan of coal, after being processed into electricity by the power plant, can actually create a benefit of 210 yuan.

Of course, if you take into account all kinds of other costs, before the technical transformation, the power plant is only at a small profit. After all, power plants can bear a large number of workers' wages and benefits, such as education, medical care, housing, etc., and the costs of birth, old age, sickness and death are borne by the factory.

However, after the technological transformation, the efficiency of the power plant is already good, and it can't be better!

A power plant that nets millions of dollars a year is not bad even in the 21st century.

What's more, in the 80s, when the GDP was not very high, a factory that made millions a year could be regarded as rich!

In addition, this is only the Shijingshan power plant, if the technology is promoted. A large number of power plants across the country have been gradually transformed into technology, which can greatly save costs and increase efficiency.