Beining Province, Hezhou Power Plant.

Next to a huge power turbine, a group of officials, technicians and workers looked at each other, with all kinds of expressions on their faces. Among them, Duan Zhengwei, the director of Longshan Motor Factory, had the most desolate expression. A man, who was tall and strong, had a layer of tears in his eyes.

"What's the matter with this special meow! Even if something goes wrong in the evening for another week!"

Duan Zhengwei complained to Feng Xiaochen beside him in a hoarse voice.

When Duan Zhengwei and Feng Xiaochen, who were waiting in the capital to fight wits and courage with the Dingnan Planning Commission, were stunned. Tan Guoliang and others could think of things, and Feng Xiaochen and others could naturally think of them. They pulled the flag of self-reliance and put pressure on Tan Guoliang and others, and gained a moral advantage. Some of the rumors that Zhu Julan and others heard were spread by Feng Xiaochen arranged for people to spread, and more were made up by people in various circles based on their imagination. Feng Xiaochen was naturally happy to see such rumors circulating, because this would bring endless trouble to the southern province.

Just as the dawn was ahead and Dingnan Province was about to surrender, his backyard suddenly caught fire. The accident at Hezhou Power Plant steadily slapped Feng Xiaochen, Duan Zhengwei and others on the face, making the flag they held high unable to hold up. Feng Xiaochen himself is a person who is good at conspiracy and open conspiracy. How could Dingnan have used his power to build momentum at this time? At least, everyone mentioned the matter to the State Planning Commission, and the Planning Commission could no longer help Longshan Motor Factory. Feng Xiaochen's previous operations were wasted.

After hearing the news, Wang Zhenbin called Feng Xiaochen immediately to ask about his attitude. Wang Zhenbin had previously made harsh words to Wang Jinsheng, and was entrusted by Feng Xiaochen. However, Wang Zhenbin's words were not wrong, because Dingnan Province was indeed wrong first, and Wang Zhenbin's words were completely in line with national policies. Even if Feng Xiaochen did not entrust him, he would say this, but his attitude might be more gentle.

Now the wind is turning sharply and there is a problem with domestic equipment. Wang Zhenbin's previous tough attitude has become a handle, and he may be snatched by Dingnan. Wang Zhenbin felt a little regretful, feeling that he shouldn't have flowed into this muddy water out of classmate's affection, but things have happened, so what's the use of regret?

"Big brother, this matter is still unclear. I plan to go to the scene with the people from Longshan Electric Factory immediately to learn about the specific situation. The policy of self-reliance is correct at any time and will never be denied because of one or two accidents. In Dingnan, you should try your best to hold on and not let them get away with it. I think they are just taking advantage of this incident, but they will never dare to say that the foreign moon is rounder than that of China, unless they don't want to do it, don't you?" Feng Xiaochen comforted Wang Zhenbin on the phone.

"That's true." Wang Zhenbin felt a little more at ease. It was not a big deal about the domestic equipment in Hezhou Power Plant. There was no problem with it. There was no equipment that would never be a problem? The troublesome thing about this is that it happened too coincidental. It happened to be at the peak of the bidding incident of Shating Power Plant, which made Dingnan find a statement. But to think deeper, can you deny self-reliance because of a failure of the domestic equipment? I'm afraid no one dares to say that? Wang Zhenbin represents political correctness and there is no need to worry about talking to any occasion.

Feng Xiaochen comforted Wang Zhenbin and asked Duan Zhengwei to contact the people from the Ministry of Finance to tell them not to surrender to Dingnan's pressure easily, and to wait until the matter is clear before talking about it. Then, he and Duan Zhengwei took a plane to Beining Province and arrived at Hezhou Power Plant.

Hezhou Power Plant is no stranger to Feng Xiaochen. He and Du Xiaodi first met because there was a transportation accident on the way to the 600,000-kilowatt motor stator transported to the Hezhou Power Plant, which was a major camp repair. Later, Feng Xiaochen had been to Hezhou Power Plant several times, and the most recent time was to participate in the grid-connected power generation celebration of the domestic 600,000-kilowatt unit of Hezhou Power Plant.

The 600,000-kilowatt unit of Hezhou Power Plant is not the one that was repaired by Daying. At that time, it was said to be a domestic unit, but 70% of the components were from the United States, and it belonged to a unit made in the United States and assembled in China. Of course, the experience of that assembly is also valuable for Chinese companies. The engineers and workers of Longshan Electric Factory learned a lot of knowledge from it.

This time the unit is the second 600,000 kilowatt unit manufactured by Longshan Electric Factory. The unit adopts the design drawings of Xiyi Company. Most of the components are made in China. Only a few parts with particularly high technical requirements still use imported parts. The domestic production rate has met the expected requirements. After the equipment was manufactured, it was transported to Hezhou Power Plant for installation and conducted a low-load trial operation. The effect was good and was commended by the Machinery Commission, the Ministry of Water and Power and other departments.

This time Duan Zhengwei went to Beijing to bid for the Shating Power Plant project. His introduction materials also included the content of Hezhou's 600,000-kilowatt unit, and it was a very heavy part. Who knew that it was this unit that had dropped the chain.

"We started a 100% load test two weeks ago, and found that the thrust bearing tile temperature was too high, reaching 120 degrees Celsius, and the axial thrust reached 52 tons, which were far exceeding the design allowable value, so we conducted a shutdown inspection." Zhai Shaohua, chief engineer of Hezhou Power Plant, introduced the situation to everyone.

It turned out that the news Wang Jinsheng got was somewhat distorted. It was not the motor spindle that was causing the problem, but the thrust bearing of the steam turbine. The nature of the problem was not as serious as he said, at least not to the extent of causing a fire. Of course, the temperature of 120 degrees Celsius is enough to make the lubricant smoke. Everyone spread rumors and it was like this.

"This steam turbine was designed by Xiyi Company in the United States. As soon as we found a problem, we sent a fax to Xiyi Company and asked them to analyze the cause of the accident. They believed that there would be no problem in design. The problem should be in manufacturing and installation, and proposed some possible situations, including the leaking installation of the steam pipe piston, the unopened balance hole of the adjustment stage, and the leakage of steam in the nozzle chamber, etc.." Quan Jiancai, chief engineer of Longshan Motor Factory, interjected the conversation and continued to introduce.

"Does these situations exist?" asked Yang Le, director of the Ministry of Water and Electricity.

Quan Jiancai said: "We urgently reviewed the records of equipment manufacturing and installation, repeatedly checked it many times, and asked the operators, thinking that these situations are unlikely to occur. In recent years, we have implemented comprehensive quality management, and each process has strict quality inspection requirements. The possibility of such a large error is very small."

"If it weren't for these problems, then what other problems might be?" Yang Le asked.

Quan Jiancai turned his head to see Duan Zhengwei, hesitating and didn't know what to say. Duan Zhengwei hesitated for a moment, and then whispered: "Director Yang, we have a guess that the problem may not be with us, but with the design of Xiyi Company."

Yang Le was a little surprised, and then his face sank and said, "Director Duan, as the head of a factory, you must be responsible for saying this. Xiyi Company is a world-renowned large enterprise. It has made more power generation equipment than all of our entire China. Can such a 600,000 kilowatt unit still have problems? I can understand your mood. No one wants to see such a thing. But this kind of shirks off responsibility is very inappropriate."

As soon as this said, Duan Zhengwei couldn't hold his face. He wanted to argue for a few words, but he didn't know how to say it. He knew a little about the motor, but he was not a professional and technical staff, so he couldn't explain some principles. He turned around and said to Quan Jiancai: "Lao Quan, tell me what you are considering and let Director Yang refer to it. Also, isn't Assistant Feng here too? He is also a technical person, so maybe he can give some advice."

Quan Jiancai nodded, pointed to the thrust bearing on the turbine, and said to Yang Le and Feng Xiaochen:

"Director Yang, Assistant Feng, you can see that the problem this time is first manifested as overheating of the thrust bearing. We analyzed that the reason should be that the thrust bearings exceeded the design requirements. With this consideration, we measured the axial thrust bearings and found that the axial thrust is nearly 2 times higher than the design value, so we determined that the cause of the fault is that the axial thrust is too high.

In the past few days, we have concentrated the technical force of the entire factory and made a very comprehensive causal analysis diagram based on the reasons for possible problems during design, manufacturing, installation and operation, and then calculated one by one to eliminate various unreal possibilities and eliminate some unimportant factors. Finally, we found that there is only one reason for excessive thrust, that is, there is a problem with Xiyi Company's design method.

When we introduced Xiyi Company technology, the Americans taught us a complete set of calculation methods, and their steam turbines were calculated using this method. We used the same method to calculate this turbine, and the result was that the axial thrust would not exceed 28 tons, while the actual measurement result was 52 tons, which means that their calculation method must have defects."

"What, the calculation method is flawed?" Yang Le was a little confused. He was not a technical cadre and could not understand what the calculation method was. Quanjian is the chief engineer of Longdian, and he is very technically awesome. He could firmly believe that there was something wrong with the calculation method, and Yang Le was really hard to refute him.
Chapter completed!