In the 60 years since the founding of New China, China's power equipment industry has achieved a step-by-step leap. These gradually advanced equipment guarantee the smooth development of the national economy and carry the glory and dream of the revitalization of the power industry,Let us turn our attention to TBEA Shenyang Transformer Group Co., Ltd.
Breaking the factory building, the old machine tool makes a large transformer
In 1952, China's first large-capacity transformer “Five-Kinth” was launched in Shenyang Transformer Factory, ending the history of China's inability to manufacture large transformers. On September 24, the reporter dialed the telephone number of the old party secretary of the Shenyang Transformer Factory, Liu Fengzhou.the reporter dialed the telephone number of the old party secretary of the Shenyang Transformer Factory, Liu Fengzhou.
Liu Fengzhou, 80 years old, still has a clear idea: "On November 2, 1948, after the liberation of Shenyang, the military representatives entered the factory and settled in the ruins. After three years of hard work, the production of the company was basically stable. In 1951, the factory Accepted the task of the country to manufacture China's first 5,000 kVA large transformer."
However, this task is not easy to accomplish. The sinking at that time could only produce railroad accessories and small transformers.
Poor conditions are a bigger challenge. Song Caifei, a famous Chinese die-casting expert, worked in the early days of the founding of New China. He said: "At the time, the equipment left over from the factory during the pseudo-manchurian period was very old. The factory area was large and there was a railway.but there was no decent building. Later, the office building and the large transformer workshop were built one after another, but the living facilities were pitiful. On the edge of the factory, there is a two-story small group dormitory, all of which are reserved for technicians from the south. This is a special care." In 1950, Song Caifei crowded a house in a house. The workers’ dormitory is a simple cottage with poor conditions. The life of the workers in the factory is very difficult, and the large stoves are all sorghum rice.
Liu Fengzhou said that the conditions were indeed difficult at the time, but everyone took the factory as their home, worked overtime, and even slept in the workshop, and many heroes emerged.
Wang Fengen's name is closely related to the 5000 kVA transformer. He entered the factory in 1948, starting from a broken factory building, several old machine tools, and a hundred workers to promote the leap of China's transformer technology and become a famous model worker in the country.
There is no precedent, and it is hard to imagine the difficulty of manufacturing a 5000 kVA transformer. The first process was stuck: no one would do the insulation of the transformer - the previous insulation cylinders were foreign. The insulating paper was rolled into a package and the machine was used. The party branch asked him to think of a solution. When Wang Fengen, the chief of the large transformer workshop, repaired the electric motor, he was the "big man" (the most authoritative person in one aspect). The crane was also good, but he did not build the machine, but the responsibility made him decide to complete the task. Later, after a test, the insulated cylinders that were rolled out were covered with pleats. This special insulation material was not available in China at the time and was supported by the Soviet Union. Looking at the piles of scrap, he was in a hurry. Once, he went home with a puzzle and saw his wife ironing, and he sat on the side. When he came and went, he suddenly got up and grabbed the iron and ran out. His wife shouted at him and he didn't look back. When he came to the factory, he used the iron to push and push on the insulating paper, which solved the foaming problem of the insulation paper that had plagued the factory for many years.
In order to "treat" the transformer, Wang Fengen also had a trip to the machine for three days and three nights. Like the doctor, he listened to the sound of the machine and finally solved the problem. In the absence of the conditions for the production of large transformers, we have been manufacturing machines such as reeling machines, reeling machines, welding machines, neck-type large table punching machines, coiling machines, pipe stripping machines, and insulation tubes.
Through the joint efforts of the whole factory staff, the 5,000 kVA large transformer that represented the highest production level of the year was finally successfully rolled off the line, and was kindly called “Five Thousand” by the workers. The capacity of the “Five Thousand” is 100 times larger than the capacity of the products before liberation, and the voltage level is 44 kV to 66 kV, which means that China's transformer manufacturing technology has entered a new milestone.
"At that time, everyone was happy, broke the drums and opened the commendation meeting. The large transformers such as 'Five Thousand' continued to support the construction of factories, mines, power stations and rural areas in more than 20 provinces and cities in China, and became the Guanting Reservoir. Dandong Power Grid, Jilin Power Grid and supporting equipment for national key projects such as Anshan Iron and Steel, Baotou Steel and Wuhan Iron and Steel also support the production and construction of countries such as North Korea, Vietnam, Mongolia and Yugoslavia.” Liu Fengzhou recalled.
500 kV transformer outperforms foreign products
Newcomers change from generation to generation. In the late 1970s, after graduating from Wang Jing University, he entered the Shenyang Transformer Factory to work as a technician. "I studied magnetics at the university. When I came to the transformer factory, I was assigned to a high-voltage laboratory. The main job was the design of the transformer." In an interview with reporters, Wang Jing was always proud of the job.
At that time, the world transformer market was monopolized by large companies such as Siemens and Westinghouse. The production technology of 500 kV transformers is only in the hands of a few countries such as Canada. The transformer technology in China still stays at the level of 220 kV.
Is it expensive to buy abroad, or to overcome difficulties? Shen changed to choose the latter. “Design is not an easy task. At that time, engineers led us to do some work, find information, and make molds. It’s really a slap in the face. After tens of thousands of experiments, it took several years for the 500 kV transformer to be successfully manufactured.” Wang Jing said. When large foreign companies have strong technical and financial support, the labs of the factory can only rely on simple equipment and as little as a few pages. They have achieved success and they have reason to be proud.
In 1980, the state approved the “Shenchang 50,000-volt transmission and transformation measures” project, which aims to make the Shenchang fully equipped with environmental conditions for the production of 500 kV transformers and transformers. At the end of 1983, the project was completed, and the Shenbian has the ability to mass produce 500 kV transformers and transformers.
The former Shen Jian Chief Engineer and Academician of the Chinese Academy of Engineering Zhu Yinghao has been insisting on the localization of 500 kV transformers. In September 1985, Gezhouba Power Plant needed a 360,000 kVA 500 kV autotransformer. After signing a formal technical agreement with Shenchang, it was still not at ease. At the same time, it ordered a factory in Japan and decided to produce it. As a spare part. In June 1986, after the Shenbian product was shipped to Gezhouba Power Plant for successful commissioning, Japan has not yet been built. When it is built, it will be broken down in less than 10 minutes after the test run on the system, and it can't be used. At that time, Japanese products cost several million dollars, and the Shenbian products only used several million yuan.
Zhu Yinghao also said: "There was once a user who imported an outdoor reactor from abroad and was afraid of damage, so he asked to design a spare reactor of similar model. He traveled all over the country and no one dared to take over. Finally I found us, I set up a 'military order' with him: do it according to his requirements, 'try and buy first'. The condition is that I dare to do it, you have to dare to use it. Analysis, research, data, experiment, two years later The goods have fully met the required standards. He is very satisfied, our products have good after-sales service and save money."
"You dare to use, I dare to do it, believe me, and we can do the complicated transformer products that are difficult to do. The two 'dare' together, our national industry will develop. Always spend foreign exchange to buy Chinese companies will never advance." Zhu Yinghao has always believed in this.
The reporter learned that Shenneng participated in the "Jinliao 500 kV test line segment and complete sets of power transmission and transformation equipment" project won the first prize of the National Science and Technology Progress Award, "360,000 kVA 500 kV autotransformer used in Gezhouba Power Plant" and " The National Standards Project of Power Transformers won the second prize of National Science and Technology Progress Award.
On June 16, 1995, President Jiang Zemin pointed out during the inspection of Shen Shen: "I have been to Shenchang many times. I used to be familiar with the old leaders. At first, Shen Shen could only produce some small transformers, but gradually developed to 110 kV, 220 kV, 500 kV, there are many employees' efforts, which is the result of your hard work."
On January 6, 2009, the Jindongnan-Nanyang-Jingmen 1000 kV UHV AC pilot demonstration project was officially put into operation. In many reports since then, many media have said that in this project, the whole machine equipment of foreign trademarks is not seen. Behind this, there are more than 100 domestic electrician equipment companies involved, and the same has not missed this opportunity.
On July 17, 2009, the reporter saw in the final assembly workshop of Shenchang that there is no difference between day and night. Since the beginning of July, 12 employees have worked day and night to successfully assemble the second Chinese-oriented ±800 kV UHV converter transformer.
"In the world's UHV field technology 'curve', we are temporarily leading the competition with international giants." Chang Chang, executive deputy general manager of the company, said proudly. Since the beginning of 2009, Shen has built 6 million-volt ultra-high voltage transformers, and its independent innovation capability has reached the peak of the international industry.
In fact, after the State Grid Corporation proposed the construction of UHV, some people believe that there is no mature commercial UHV equipment in the world. There are gaps between domestic enterprises and similar international enterprises, and the development of key equipment such as transformers and controllable reactors. On the basis of the severe test, the UHV equipment will be directly developed and used for commercial operation. The technology span is very large.
“UHV has no obvious insurmountable technical obstacles.” State Grid Corporation has drawn this scientific conclusion based on a large number of investigations.
Inspired by the State Grid Corporation, on October 12, 2007, TBEA Shenken officially launched the construction of the world's largest power transmission and transformation industrial park in Shenyang Economic and Technological Development Zone. The project is to use ultra-high voltage and ultra-high voltage AC and DC transformers. With the development of products as the core, the company has developed high-tech products such as high-voltage transformers, casings, high-voltage switches and international complete sets of engineering, and built a factory with the largest one-time investment, the largest production capacity and the highest voltage level in the world.
On September 12, 2008, the National Development and Reform Commission officially authorized the implementation of the “National Engineering Laboratory Construction Project for UHV Transformer Technology” by TBEA. This is the only national engineering laboratory in China's transformer industry. On December 19, 2008, the TBEA was renamed a national high-tech enterprise.
For decades, the ability to innovate has long been recognized by the world's peers. The steep changes in the new era are propping up the backbone of China's electric power “highway” with its own unique technology, creating an ultra-high-pressure “broadband network” for the next round of rapid development of the Chinese economy.
People not only have to ask, but the company with its impressive history and technological heritage is not a family. Why is there so many “first set” in its focus and can continue to achieve outstanding performance in the UHV field?
The reporter learned that the development of the first UHV AC 1 million kVA/1000 kV transformer was not started from scratch. As early as 1998, it produced a transformer prototype of 150,000 kVA. A strong technical reserve.
"The support of the national policy for UHV and the support of the State Grid Corporation for the localization of equipment have effectively promoted the localization of UHV transmission and transformation equipment," said Zhang Xin, chairman of TBEA.
It is changing today and is still improving. "Compared to the output value of 4.5 billion yuan, 365 days a year is really not long, 24 hours a day is really not enough." On July 8, 2009, in an interview, the sublimation of the Department of Manufacturing changed the color to express the sudden change. The concept of time of man. Today, it has changed, more than 10,000 workers have "three shifts", and the machines in the three large equipment workshops have been running for 24 hours, and they are working hard for the electric power industry of the great motherland.