Global wind power industry usher in new opportunities for development

In recent years, the development of “blowout” in the global wind power industry, including China, has made the market demand for wind power equipment grow rapidly, which has also led to the development of wind turbine supporting bearings. In the face of such a new market opportunity, not only the bearing enterprises such as Zhaxi, Luoxi, Tianma, and Daye's shafts are more powerful in investment, technological transformation, and the production capacity and level of wind power bearings, but also some small and medium-sized enterprises Joining them, want to share a share in the wind power bearing market, a wave of investment in wind power bearings has set off in China's bearing industry.

In the face of this “heat wave”, senior experts in the bearing industry, such as He Jiaqun, reminded companies to remain calm and carefully analyze market demand and business reality. While seizing opportunities, they must guard against the various risks implied therein, especially when there is no research and development. The ability and lack of technical reserves of the company must be cautious when entering the field of wind power bearings.

Wind power equipment ushered in opportunities for development He Jiaqun introduced to reporters that the relative scarcity of traditional energy sources and the growing pressure on the environment have led countries to spare no effort in developing renewable energy sources including wind power. At present, the wind power industry has spread over all continents of the world and has experienced rapid growth.

According to statistics from related parties, by the end of 2006, the installed capacity of wind power in the world had reached 74.423 million kilowatts, an increase of 25.6% over the previous year, and this accounted for only 1.19% of the world's total electricity generation. The future wind power industry still has tremendous development. space. The European Wind Energy Association predicts that before 2020, the annual installed capacity of wind power in the wind power industry in the world will remain at more than 15 million kilowatts.

Looking at the development trend of China's wind power industry in recent years, the total amount of wind energy that can be developed in China is about 1 billion kilowatts. By the end of 2006, the installed capacity of wind turbines in China was 2.6 million kilowatts, which was less than 3% of the total amount of wind energy that could be developed. Great potential for development. According to China's energy development strategy, the country will substantially increase the proportion of renewable energy such as wind power and solar energy in the total energy consumption.

The rapid growth of the wind power industry has provided strong support for the development of wind power equipment. In the past 10 years, the manufacturing of large-scale wind turbines in China has started from scratch and has begun to take shape. The state has also introduced some specific industrialization support policies, among which the localization rate of wind power equipment is required to reach more than 70%, and wind farms that do not meet the requirements for equipment localization rate are not allowed to build. Under the guidance of this policy, some large domestic enterprises have entered the field of wind power equipment one after another. In 2006, there were 30 companies engaged in wind power equipment manufacturing. In 2007, a large number of enterprises entered the industry. The localization rate of wind power equipment has also been continuously rising, with 25% in 2004, nearly 30% in 2005 and 40% in 2006, and it is expected to reach over 70% by the end of the “Eleventh Five-Year Plan” period.

From the current situation that many Chinese enterprises have invested heavily in the wind power industry and the top ten international wind power equipment companies have entered China in succession, industry insiders expect that China will become the world's manufacturing center for wind power equipment in the near future.

The wind bearing market can not be underestimated when it comes to the demand for bearings from wind turbines. He Jiaqun calculated the accounts for the reporter.

He took the example of a traditional asynchronous Generator Set with gearbox, which has the largest number of bearings, to measure the bearing capacity of the wind turbine: 1 set of yaw bearing (slewing) and 3 sets of pitch bearing (slewing), to generate electricity. Machine bearings (deep groove ball bearings, cylindrical roller bearings) 3 sets of spindle bearings (Spherical roller bearings) 2 sets, a total of 9 sets. There are also transmission bearings, and the transmission has three structural forms. The first form requires 15 sets of bearings, the second form requires 18 sets of bearings, and the third form requires 23 sets of bearings. In this way, the average number of bearings for wind turbines is 26 sets.

After calculating the average number of bearings required for each wind turbine, He Jiaqun predicted the demand for domestic wind turbine bearings in 2010 and 2015. He Jiaqun said that according to China's "renewable energy medium and long-term development plan" proposed wind power development goals: the total installed capacity of wind power in China should reach 5 million kilowatts cumulatively in 2010; in 2015 the cumulative installed capacity of wind power in China reached 15 million kilowatts; the national wind power installation in 2020 Capacity has reached 30 million kilowatts. From the current development situation, the above planning goals will greatly exceed. Some industry experts also made two predictions about the installed capacity of wind power in China: The first is 8 million kilowatts in 2010 and 20 million kilowatts in 2015; the second is 10 million kilowatts in 2010 and 30 million kilowatts in 2015.

If you set the average capacity of each unit: 1 MW from 2007 to 2010, 1.5 MW from 2011 to 2015. The localization rate of wind turbines is 50% from 2007 to 2010 and 70% from 2011 to 2015. With 26 sets of bearings per machine assembly (including 4 sets of slewing bearings), sales of 700,000 yuan are estimated. Then, if the first forecast target of the experts is realized, the installed capacity of wind power in the country will increase by 5.4 million from 2007 to 2010. In the case of kilowatts, 5,400 new wind turbines of 1 MW are to be built, with an average of 1,350 per year, of which 675 use domestically produced bearings, which will require 17,550 domestically-made bearings (of which 2,700 are slewing bearings), with annual sales of 470 million yuan; 2011 In 2015, the newly installed capacity of wind power in China was 12 million kilowatts, and 8,000 new 1.5-megawatt wind turbine generators were needed. The average annual number is 1,600, of which 1,120 use domestically-made bearings, which require 29,120 domestically-made bearings (4,480 sets of slewing bearings). Annual sales of 780 million yuan.

If the second forecast target of experts is achieved, the installed capacity of wind power in China will increase by 7.40 million kilowatts from 2007 to 2010, requiring the addition of 14,000 megawatts of wind turbine generators, with an average of 1,850 per year, of which 925 will use domestically-made bearings. The domestically-manufactured bearings will require 24,050 sets (including 3,700 sets of slewing bearings), with an annual sales of 650 million yuan. From 2011 to 2015, the new installed capacity of wind power in China will be 20 million kilowatts, and an additional 1.5 megawatts of wind turbine generators will be needed, averaging 13,333 units per year. 2667 sets, of which 1867 sets use domestically-made bearings, they need domestically-made bearings 48542 sets (of which 7468 sets are slewing bearings), with an annual sales of 1.31 billion yuan.