Chapter 136: Electricity is not exhausted
"What's the problem?" asked Ge Jiaming. Pen, fun, and www.biquge.info
Feng Xiaochen said: "I heard from the Japanese people that the reason why our unit has such a wide range of anti-corrosion cracks is mainly due to the repeated start and stop of the unit, which Chief Engineer Zhao also confirmed when he was below. I've heard that thermal power units are taboo to start and stop repeatedly, why do we have this happening?"
"You just ask this?" Ge Jiaming was a little confused, what is this going on, weren't you still talking about the electricity consumption index just now? Could it be that you and Lao Yan are not in the same group?
Yan Fusheng was also dumbfounded, he was trying to take advantage of the strength of the wine to find Ge Jiaming to implement the electricity consumption index, Ge Jiaming's words have already been said halfway, what kind of situation is Feng Xiaochen here to stir up? Even if you like to study business, you know a little bit about stone, you also know a little bit about power generation, and even inexplicably hang the title of the deputy director of Linbei Heavy Machinery, won't you come to Ge Jiaming to discuss it at another time?
Could it be that Feng Xiaochen felt that Lengshui Mine did not clearly attribute the credit to him, and he wanted to come forward to grab the credit? Nima, everyone can see your credit, can others snatch it, are you so anxious?
Feng Xiaochen didn't know what the two of them were thinking, but he still smiled and said to Ge Jiaming: "I don't know much about the situation of the power system, so I want to ask Chief Engineer Ge for advice." ”
"Oh, I don't dare to ask for advice. Ge Jiaming put away his suspicions, since Feng Xiaochen wanted to ask, he said that it was okay, anyway, it was not a secret.
Director Xiao Feng is right, the repeated start and stop of the unit is indeed a taboo in the power plant, this start and stop waste of energy consumption not to say, the most important thing is the damage to the steam turbine and motor. Sudden increases and decreases in steam pressure can damage the blades, valves, etc., and under normal circumstances, we try to avoid this happening.
But it's useless for us to think like this, and users won't consider our ideas. During the day, workers go to work and consume a lot of electricity, so we need to run at full capacity to generate electricity. At night, when workers get off work and use less electricity, we have to turn off some generators, which is called peak shaving. Because electricity cannot be stored, if the power generated is not used up, it will be wasted.
If we have several large hydropower stations in our power grid, it is of course best to use hydropower stations for peak shaving, because it is much easier to start and stop a water turbine than a steam turbine, and the damage will not be so great. However, our Northern Electric Power Authority does not have a large-scale hydropower station, and can only rely on the start and stop of the steam turbine to achieve peak regulation. ”
The situation that Ge Jiaming said was very common in those days. Because the power grid is divided into several parts, it is difficult to coordinate between hydropower and thermal power, which is one of the reasons why the state later devoted itself to the construction of a unified national power grid. One of the important roles of the Three Gorges Project is to become an important peak-shaving power station of the national power grid, the Three Gorges is located in the hinterland of China, and the distance from the major power grids in South China, East China, and Northwest China is within the economic transmission radius, and the installed capacity is extremely large, so it can play a good role in peak regulation.
In later generations, in order to peak regulate wind power and solar power stations with unstable power supply, people also need to build pumped storage power stations, which use excess electric energy to pump water to high places when electricity consumption is low, and then release water to generate electricity when electricity consumption peaks, so as to achieve peak regulation.
In the early 80s, the state did not have the power to integrate the power grid and build pumped storage power stations, and frequent start-up and shutdown of generator sets was inevitable.
In fact, this situation does not exist in China, and the Chiga power plant in Japan that Feng Xiaochen said also has daily starts and stops because of peak shaving. Jiulin did not foresee that the unit would operate under such conditions, and there was no margin in the design, which led to this situation at the Qianhe power plant and the Pinghe power plant.
Feng Xiaochen actually understands this truth, so he wants to pretend to be stupid, just to lure out Ge Jiaming's words. Hearing Ge Jiaming's explanation, he said with a smile: "This is strange, on the one hand, the Yan Mine Chief and they can't produce because of the lack of electricity, and on the other hand, Chief Engineer Ge said that you can't run out of electricity, what is the reason?"
"This is because ......" Ge Jiaming was about to explain again, when he suddenly noticed that Feng Xiaochen's words were full of mystery, and his heart moved, and he asked: "Director Feng means that the cold water mine can use electricity at staggered peaks?"
"Is there any benefit to staggering peak electricity?" Feng Xiaochen asked rhetorically.
"If the coldwater mine can consider off-peak power consumption, we can ask the power authority to give you an approval of 600,000 kWh. Ge Jiaming said without hesitation.
The so-called off-peak electricity consumption is not to use electricity when the peak of electricity is used, and you will not start to use it until others do not use electricity after work, so as to avoid grabbing electricity with other people, and at the same time, it can also increase the electricity load at the trough. If there are more units that can choose off-peak power consumption, the Pinghe power plant will not need to turn off some motors at night.
It can be said that if the cold-water mine is willing to choose off-peak power consumption, it will not only cause trouble to Pinghe, but will help the Pinghe power plant cut the peak and fill the valley, which is something that Ge Jiaming is happy to see. So as soon as Feng Xiaochen asked, he readily increased the 300,000 kilowatt-hours of electricity he was originally going to promise to 600,000 kilowatt-hours at once.
In fact, many countries have measures to encourage off-peak electricity consumption, such as stipulating that the price of electricity after midnight and before dawn is lower than during the day, so as to attract high-energy-consuming industries to adjust their production hours to the evening. Of course, even so, many companies still do not choose to use electricity off-peak this way, because it means that workers have to work night shifts, and the wage standard for night shifts will be higher than during the day.
Feng Xiaochen was not blinded by Ge Jiaming's generosity, he shook his head and said: "There is no pressure on off-peak electricity consumption, but it is still good for the power grid, you are just increasing the electricity consumption index for the cold water mine, this is not a cooperative attitude." ”
Ge Jiaming said with a smile: "Director Xiao Feng, listen to what you mean, we still have to give a bonus to the cold water mine?"
Feng Xiaochen said: "It doesn't matter if the bonus is paid or not, at the very least, there should be a discount in the electricity price, right?"
"We really can't call the shots about this. Ge Jiaming said honestly, "Actually, we have proposed this to the Ministry of Electric Power, hoping to adopt differential electricity prices." It is a little more expensive during the day and a little cheaper at night, leading enterprises to turn to production in the second half of the night. But to do this, you need to install another meter for the enterprise, take one line during the day, and take another line at night, otherwise there is no way to distinguish. The Ministry of Electricity also has this idea, but it is a little difficult to know how to do it. ”
"Then if the stone factory of the Lengshui mine can take a separate line, pull the gate during the day and close it in the second half of the night, can it enjoy the differential electricity price?" Feng Xiaochen asked.
Ge Jiaming had a bitter face and said: "Director Xiao Feng, this matter is really not something we can say, it really can't be done, you go to the Ministry of Electric Power to discuss, if the ministry agrees, we don't have any opinions, anyway, the electricity bill is not collected by us." However, if the coldwater mine agrees to produce only in the second half of the night, we can do help them coordinate more electricity consumption targets. The electricity in the second half of the night is already redundant, and we can't wait for someone to use it. ”
"Mine Chief Yan, what do you see?" Feng Xiaochen turned his head to Yan Fusheng and asked.
Yan Fusheng listened to the conversation between the two of them, and his admiration for Feng Xiaochen increased a lot. The request for 300,000 kilowatt-hours of electricity, he put it forward with courage, and he was ready to let Ge Jiaming cut it. You know, they have been begging the Provincial Planning Commission and the Provincial Economic Commission, and the Provincial Electric Power Bureau has only given them 30,000 kilowatt-hours of electricity, and he proposed to ask for 300,000 kilowatt-hours at once.
In addition, the matter of electricity consumption is not a one-shot deal, and it will reach 300,000 kilowatt-hours this year, so what will we do next year? Feng Xiaochen has done the power plant a favor, and people can just return the favor once and return the favor every year?
But Feng Xiaochen actually came up with such a trick as staggering peak electricity, and suddenly found Ge Jiaming's weakness, so that he did not hesitate to double the 300,000-degree index.
Off-peak electricity consumption is to use electricity in the second half of the night, and it can be used for about 6 hours a day. If a few pieces of equipment can be added to the cold water mine, six hours a day will be enough to complete the export task. As for going to work in the second half of the night, it is nothing for the cold water mine, and the workers in the stope are also the norm, these unemployed young people are all big girls and young men, they are young, and there is no family drag, what is wrong with the last night shift?
If you can really get the target of 600,000 degrees a year, then in addition to completing the German order, the stone factory still has the spare power to open up the market of Japan, the United States and other countries, how gratifying is this?
Hearing Feng Xiaochen ask for his opinion, Yan Fusheng took a step forward and said briskly: "No problem, if Chief Engineer Ge can help us reach the target of 600,000 degrees, we will move the production to the second half of the night, and we can't make trouble for Chief Engineer Ge." ”
"If it's troublesome, I don't need to say it. Ge Jiaming said, he thought about it, and said: "Otherwise, I'll be the master first, and strive for a daytime electricity consumption target of 150,000 kWh for you, and then a second-half electricity consumption target of 600,000 kWh, you can move the production of large electricity consumption to the second half of the night, and the daytime production can also be carried out as usual, Director Feng, Director Yan, what do you think?"
"Of course it's good!" Yan Fusheng was overjoyed, there was a daytime indicator of 150,000 degrees, as long as he saved a little, it was enough to use it for a year. As Ge Jiaming suggested, move the production that consumes a lot of electricity to the evening, and use the 600,000 second-half of the night target. In this way, the production will not be delayed during the day, and more people can be arranged at night to increase the intensity, which is a wonderful thing.
Of course, he knew that Ge Jiaming did not let them only use the night indicator as he said at the beginning, but gave another 150,000 degrees of daytime index, which was completely for Feng Xiaochen's sake.
This Xiao Feng, alas, Lengshui Mine owes him a favor again.
Yan Fusheng thought helplessly in his heart. (To be continued.) )