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111 Oscillation

As we all know, thermal power plants have only three parts: furnace, machine and electricity. The furnace is a boiler, a steam turbine, and electricity is a generator. Each set of furnace, machine and electricity forms a unit. The boiler generates steam to drive the steam turbine to drive the generator to generate electricity. The electricity emitted by each unit must eventually be merged into the only boost station and sent to the power grid. The so-called boost station is to increase the electricity from each unit of the factory to a voltage that meets the requirements of the power grid, and then merge it into the busbar and supply it to the power grid.

In this era, except for a few power plants like Jiudan, most power plants still have to be on duty separately. Boilers need to be viewed, steam turbines need to be viewed, electrical and booster stations need to be viewed. With the development of automation and the improvement of management, the power plants later have gradually improved from various units to centralized monitoring. In a monitoring room, everything about the power plants is what Zhang Yifu did in his previous life. He sat in front of the computer screen, stared at various parameters at all times, and yawned. Naturally, the knowledge and experience required by the personnel on duty in this kind of operation are much higher than that now. You have to look at the boiler temperature and steam pressure, and you also have to understand the speed of the turbine, and you also have to figure out the network voltage frequency.

As Wang Xiaohua and others who are on duty at the current electrical duty, obviously there is no need to know that much. Just ensure the indicators of the electrical part. The other parts will naturally have furnaces and the machine duty staff will do it.

Since electrical is the key, it is responsible for contacting the dispatcher and reporting the operation of the power plant equipment to the dispatcher at any time. It accepts dispatching instructions to start and shut down the unit and add or subtract the power. A total of 10 people were arranged in one shift, and four people were inspected regularly. Wang Xiaohua and Ye Qingqing could drink tea in the duty room to make the poor.

Zhang Yifu visited the work and temporarily joined this group. He followed Wang Xiaohua to scan the traditional instruments and electronic monitoring equipment. He only felt that there were too many places in this power plant that had great potential. In the future, it would be automated. All these things would need to be updated and renovated. They would be high-end equipment worth millions of millions of yuan, and there would not be too much oil and water in it.

Thinking that at this stage, most of the oil and water will be caught by the American Xiaori. Zhang Yifu was snatched away by ABB Mitsubishi. However, he was alone and had a lot of work. It was really hard to work hard in that direction. He pointed to Heng Electric and started building it. I don’t know what year or month it will take.

"How is it? Is this kind of instrument safer?" After displaying many equipment in his duty room, Wang Xiaohua waved the duty record table in her hand and smiled proudly, "Look at Jiutan, shouting about automation, nothing happened in the end. American things are not that perfect. Half of the equipment in our factory is made in China, so it is not safe."

Zhang Yifu shook his head and said casually: "Automation is the general direction. These domestic purely manual operating equipment are outdated. You must hurry up and catch up with the pace of automation."

Wang Xiaohua naturally couldn't understand such a far-sighted vision. Ye Qingqing had read a lot of related books and asked immediately: "Yifu, what do you mean is that in the future, our duty room will be like nine stalls, with a bunch of computers and screens."

"Absolutely, it will be like that within five years." Zhang Yifu stretched and whispered to the record table in the hands of the two. "You will feel comfortable at that time. You don't have to run around and read the dial data regularly. You just need to sit in a chair and look at the screen. The computer will record automatically. If something happens, it will be much more comfortable."

"Tsk~ It's great to be so roaming like this. If you sit for a long time, your butt will be fat." Wang Xiaohua said as she stuck out her tongue, looked at the nearest monitoring dashboard, and said while recording on the table, "Look, it's so intuitive now that you can tell at a glance that the frequency of the power grid has exceeded 50."

"Hmm?" Zhang Yifu was stunned and looked at the frequency pointer dial.

The unified standard frequency of my country's power grid is 50hz. Generally, in regional power grids, this number will be controlled at 50 a little higher, so that there will be backup and room for compensation when something happens.

Of course, this parameter cannot be easily controlled. It can only be achieved by the coordination of power plants in the entire region. For example, the power grid where the Hebei Power Plant is located mainly supplies electricity in the Beijing-Tianjin-Hebei area. In order to ensure the power supply quality and stabilize the frequency voltage, more than a dozen power plants of all sizes need to coordinate together and adjust uniformly according to the dispatching instructions to achieve a stable frequency voltage.

This frequency is very strict. It will trip if it is high and shut down when it is low. It will have huge crises.

, still within the safe range, but it is a bit high.

"It's the same usually?" Zhang Yifu asked vigilantly.

"I will do it occasionally." Ye Qingqing stared at the dial and replied, "Most of the time it is around 50. Sometimes there is a start-and-down operation in the system, or a large load suddenly goes down. It is normal to have a moment of higher than 50. It will be adjusted soon, and the dispatch of the power management bureau is there."

She was talking,.

"Look, it's okay." Wang Xiaohua smiled, "I've been on duty for so long, I haven't seen anything before. It's all a little wind and a little wave. Look, it makes you nervous."

Just as the words were finished,.

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

Zhang Yifu stared at the dial without turning his eyes, thinking that it was not such a coincidence. He encountered strange things when he came to the duty room casually. Fortunately, this range is still within the safe range and he still won’t call the police.

The three of them stared at the dial for a long time. The pointer clock fluctuated in a small range, but the movement was erratic and did not lose control.

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

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

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

Zhang Yifu stopped hearing this and immediately turned his head to look at other dashboards.

While he was focusing on monitoring the video rate, he didn't know when it started, and the power meter and voltmeter pointers next to him had already begun to sway left and right, and became more and more intense.

This sway is much more intense than the frequency of turmoil, and Zhang Yifu himself has never encountered it.

The feeling at this moment is like a plane that is about to crash in the movie. All the instrument panels are oscillating rapidly, which makes people uneasy and despair.

Zhang Yifu felt his mind swelling, and the rumbling and vibration sound in his ears became more and more intense, as if an earthquake had occurred.

Is that the generator vibrating?

Damn, what happened?

Nothing can happen, absolutely nothing can happen.

"Did you hear the vibrating sound?" Zhang Yifu looked at Ye Qingqing and Wang Xiaohua who were not too surprised.

"It seems...a little." Ye Qingqingmumu said, "It won't be our power plant..."

Zhang Yifu didn't think too much and rushed towards the console full of button dials.

Electricity is the speed of light, and all accidents are dangerous. If you are stunned for a second, you will lose one second chance.

My father's warnings and the factory manager's warnings echoed in his ears.

No, no, it happened to rain and wet today, so Zhao Hongqi and the others were asked to go to the steam turbine to construct...

And now, all generators have an inexplicable vibration, which is a silent accusation, the unit's overclocking resistance to overclocking, and the sound is like a high-end low-speed warning issued by a manual transmission car, and the reminder that the engine is about to strike.

The car engine is turned off. Just click again, but the power plant is shut down, but it is not that simple.

Zhang Yifu didn't dare to think further. He rushed to the console and shouted at the duty monitor who was sitting upright: "Crew monitoring! Crew monitoring! Is Unit 1 still there?"

The on-duty officer who monitored here was obviously not aware of everything. He looked at the monitoring disk and replied in a panic: "No problem... Unit 1 is operating normally, and other units are fine."

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

Zhang Yifu's sudden change of face and went crazy, frightened Wang Xiaohua silly, staying there and not daring to say more. She naturally couldn't understand where Zhang Yifu's nervousness and sense of crisis came from.

Ye Qingqing was quite rational. After looking at the instrument panel, he quickly replied: "The power and voltage are shaking violently."

Since the unit is fine, it is not a problem with our own power plant. It must be that something happened to other power plants in the network, and there was a problem with the voltage in the network, and the machine in northern Hebei began to shake.

It's too sudden, what should I do?

The on-duty squad leader next to him was well trained and said hurriedly: "Team Leader Zhang, wait for the dispatcher to order, and we can ensure that our crew is normal."

"No, no." Zhang Yifu immediately waved his arms and said, "Everyone, call the steam turbine duty room of each unit to ensure that there is no problem! Wang Xiaohua, go to the factory of Unit 1 immediately and ask Niu Xiaozhuang to stop work, and everyone comes out for me!"

Wang Xiaohua was still stunned.

"Damn it." Zhang Yifu turned his head and said, "Qingqing, go quickly."

"Okay." Ye Qingqing didn't have time to pay attention to Wang Xiaohua and ran out like this. She obviously realized the seriousness of the problem.

"You guys, call!" Zhang Yifu turned around and scolded the others, "Why are you stunned! Something is going to happen in our factory, let alone meeting the standards, it will be useless for this year!"

Only then did everyone realize the seriousness of the problem.

Most people are on duty for a lifetime and have not encountered several accidents, so they naturally don’t know what to do. Most of the people on duty this time are young people, who have no experience in this area at all. If something really happens, they can’t remember all the rules and regulations. Only after Zhang Yifu’s angrily scolded him, he finally picked up the phone and contacted the crew quickly and reported immediately.

"Unit No. 1 is operating, the vibration sound is increased, and the power meter swings sharply!"

"The second unit did not jump, but its power was unstable!"

“There are also numbers three.”

“No. 4…”

This is good news and bad news.

The good news is that all seven units of the Jibei Power Plant are operating, and there is no problem.

The bad news is that all units swing significantly at the same time, just like a car engine, they are beginning to be dissatisfied.

This means...
Chapter completed!
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