As we all know, the thermal power plant is nothing more than furnace, machine, electricity three parts, the furnace is the boiler, the machine is the steam turbine, the electricity is the motor, each set of furnace, machine, electricity constitutes a unit, the boiler produces steam to drive the steam turbine to drive the motor electricity, and the electricity from each unit will eventually converge in the only booster station and be sent to the power grid in a unified manner. The so-called booster station is to upgrade the electricity of each unit of the whole plant to the voltage that meets the requirements of the power grid, and then integrate it into the bus and supply it to the power grid.

In this era, except for a few power plants like Jiutan, most power plants are still on duty separately, and the boilers must be watched, the steam turbines must be watched, and the electrical and booster stations must also be watched. With the development of automation and the improvement of management, the power plant is on duty by each unit separately, and gradually progresses to centralized monitoring, in a monitoring room, monitoring the power plant, that is, what Zhang Yifu did in his previous life, sitting in front of the computer screen, staring at various parameters at all times, drinking tea and yawning. Naturally, this kind of operation duty personnel require much more knowledge and experience than they do now. You not only have to look at the boiler temperature and pressure, but also understand the turbine rotation, and you have to figure out the voltage frequency of the grid.

As Wang Xiaohua and others who are now on duty in the electric, they obviously don't have to know so much, as long as the indicators of the electrical part are guaranteed, and the other parts are naturally handled by the furnace and machine attendant.

Since electricity is the key, it is responsible for contacting with the dispatcher, reporting the operation of the power plant equipment to the dispatcher at any time, accepting the dispatching instructions to start and stop the unit and add or decrease the power. Wang Xiaohua and Ye Qingqing can drink tea in the duty room to tease the poor.

Zhang Yifu inspected the work and temporarily joined the group, and he followed Wang Xiaohua to sweep the traditional instruments and electronic monitoring equipment. I just think that there are too many places in this power plant, and in the future, it will be automated, and these things will all be updated and transformed, which are millions of high-level equipment, and there is not too much oil and water in it.

Thinking about this stage, most of the oil and water will be caught by Lao Mei Xiaori. was snatched away by ABB Mitsubishi, and Zhang Yifu was inevitably unwilling. It's just that he is alone, and the work is so full, it's really hard to work hard in that direction, and he pointed to Hengdian to build it. I don't know what year or month.

"How about it, is it still safer to have this kind of instrument?" After Wang Xiaohua showed a lot of equipment in his duty room, she waved the duty record sheet in her hand and smiled a little angrily, "Look at Jiutan, shouting automation and automation, in the end, it wasn't an accident." Americans' things are not so perfect, half of the equipment in our factory is domestic, not just safe. ”

Zhang Yifu shook his head. Casually said: "Automation is the general direction, these domestic pure manual operation equipment is outdated, to catch up with the pace of automation is to hurry up." ”

Wang Xiaohua naturally couldn't understand such a far-sightedness. However, Ye Qingqing had read a lot of related books, and then asked: "Yifu, you mean, in the future, our duty room will be like Jiutan, a bunch of computers and screens." ”

"Definitely, it will be like that in five years. Zhang Yifu stretched. He pouted at the record sheet in the hands of the two, "You will be comfortable then." You don't have to run around regularly to read the dial, you just need to sit on the chair and look at the screen, the computer will automatically record, and there will be an alarm if something happens, which is a lot more comfortable. ”

"Cut~ It's good to go around like this, or if you sit all the time, your ass will be fat. Wang Xiaohua stuck out her tongue as she spoke, looked at the nearest monitoring dashboard, and said while recording on the table, "You see, how intuitive it is now, you can know at a glance that the frequency of the power grid has passed 5o." ”

"Huh?" Zhang Yifu was stunned for a moment, looking at the frequency pointer dial.

The unified standard frequency of China's power grid is 5ohz, and in the general regional power grid, this number will be controlled a little bit up at 5o,,, in order to have a backup and make up for it.

For example, the power grid where the Jibei Power Plant is located is mainly for the power in the Beijing-Tianjin-Hebei region, in order to ensure the quality of power supply and stabilize the frequency voltage, it is necessary for more than a dozen power plants of all sizes to coordinate together, and adjust it uniformly according to the dispatching instructions to achieve the frequency and voltage stability.

This frequency is very strict, if it is high, it will trip, if it is low, it will stop,,, there is a huge crisis lurking.

It's still within the safe range, but it's a little high.

"Usually like this?" Zhang Yifu asked vigilantly.

"Occasionally. Ye Qingqing stared at the dial and replied, "Most of the time is around 5o, sometimes there is a start and stop operation in the system, or a large load suddenly goes down, and it is normal for it to be higher than 5o instantaneously, and it will be adjusted down soon, and there is a dispatch from the power authority." ”

She was talking.

"Look, it's okay. Wang Xiaohua said with a smile, "I've been on duty for so long, I haven't seen anything, it's all a little wind and waves, look at you nervous." ”

As soon as the words fell,.

"It's weird. Wang Xiaohua looked at the violently shaking watch hand and was also a little panicked.

Zhang Yifu only stared at the dial intently, his heart was not so coincidental, he came to the duty room casually and encountered strange things, but fortunately, this range is still within the safe range, and he will not call the police.

The three of them stared at the dial for a long time, and the analog clock fluctuated in a small range, but it was just fluctuating, and it did not lose control.

Suddenly, Zhang Yifu's ears shook, and he heard a "buzzing" sound in a trance, a very ominous motor restless sound.

He quickly shook his head, only to think that he had been staring at the little pointer for a long time, and he was dizzy.

"Ah!" At this moment, Ye Qingqing shouted in shock, "Don't look at this, look at something else!"

Zhang Yifu froze when he heard this, and immediately turned his head to look at the other dashboards.

When he was concentrating on monitoring the frequency, he didn't know when it started, and the power meter and voltmeter pointers next to him had begun to swing sharply from side to side. And it's getting worse.

This swing is far more violent than the frequency of turbulence, and Zhang Yifu himself has never encountered it.

At this time, it feels like a plane about to crash in a movie. All the dashboards are oscillating in a way that is unsettling and despairing.

Zhang Yifu felt his brain swell, and the rumbling vibration in his ears intensified, as if an earthquake had been born.

Is that the sound of a motor vibrating?

Damn, did you really catch up with the accident?

There can't be an accident, absolutely no accident.

"Do you hear? The sound of vibration?" Zhang Yifu looked at Ye Qingqing and Wang Xiaohua, who had not had time to be surprised.

"Like...... A little. Ye Qing Qingmu said, "It won't be our power plant......

Zhang Yifu didn't have time to think about it. Hurried towards the console, which was full of button dials.

Electricity is light, and an accident is also dangerous, and the lightning and flint will explode between the lightning and flint, and if you have a second more, you will have a less chance of a second.

Father's admonition again and again. The factory director's warnings echoed in his ears one after another.

It's not good, it's not good, it's raining and wet today, and I asked Zhao Hongqi and them to go to the steam turbine for construction......

And now, all the motors have produced an inexplicable vibration, which is a silent accusation, the resistance of the unit's frontal frequency operation, and the sound is like a high-end low warning from a manual transmission car, a reminder that the motive is going to strike.

The car engine stalled. Just click it again, and the power plant will shut down, but it's not that simple.

Zhang Yifu didn't dare to think about it anymore. rushed to the front of the control platform and yelled at the shift leader who was sitting upright in peace: "Crew monitoring! Unit 1 is still there?"

The attendant who monitored the place obviously didn't know anything about Yiqiē, looked at the monitoring panel and replied in horror: "No problem...... Unit 1 is operating normally, and the other units are fine. ”

"Is the frequency down?" "Is the swing still there?" Zhang Yifu turned his head and yelled at Wang Xiaohua again.

Zhang Yifu's sudden change of face and madness directly scared Wang Xiaohua stupidly, and he stayed where he was and didn't dare to say more. Naturally, she couldn't understand where Zhang Yifu's nervousness and sense of crisis came from.

However, Ye Qingqing was quite sensible, and after glancing at the dashboard, he hurriedly replied: ". The power and voltage are shaking violently."

Since the unit is fine, it is not the problem of its own power plant, it must be that there is an accident in other power plants in the network, and there is a problem with the voltage in the network, and the machine in northern Hebei begins to shake.

It's too sudden, what should I do?

The squad leader on duty next to him was also well-trained, and hurriedly said: "Team Leader Zhang, wait for the dispatch to order, let's ensure that our crew is normal." ”

"No, no. Zhang Yifu immediately waved his arm and said, "Everyone, call the steam turbine duty room of each unit separately to make sure that there is no problem! Wang Xiaohua, you immediately go to the No. 1 unit plant, let Niu Xiaozhuang stop work, and everyone will come out for me!"

Wang Xiaohua is still frozen.

". Zhang Yifu turned his head and said, "Qingqing, you go, you have to hurry." ”

"Good. Ye Qingqing didn't have time to pay attention to Wang Xiaohua, so she ran out, she obviously realized the severity of the problem.

"You guys, call quickly!" Zhang Yifu turned his head and scolded the others, "What's the matter! Something is going to happen in our factory, not to mention meeting the standard, this year is in vain!!"

Only then did everyone realize the severity of the problem.

Most people, who are on duty all their lives, have not encountered a few accidents, so naturally they don't know how to deal with them. Most of the people on duty this time were young people, who had no experience in this area at all, and they really had an accident, and they couldn't remember all kinds of rules and regulations.

"Unit 1 is running, the vibration sound is increasing, and the power meter is swinging sharply!"

"Unit 2 didn't jump, but the power was unstable!"

"Three, too. ”

"Number Four ......"

This is good news and bad news at the same time.

The good news is that all seven units of the Jibei Power Plant are running without problems.

The bad news is that all the crews at the same time had a large swing, just like the car motive, and began to be dissatisfied.

This means......

"Oscillation. Zhang Yifu propped his arms on the table and told this terrible truth. (To be continued)

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