Science and technology field:
The energy-saving and environmentally friendly desulfurization, denitrification and induced draft air combined fan for supercritical coal-fired units of 600MW and above in this project is advanced manufacturing and major equipment, involving the scientific and technological fields of energy conservation and emission reduction.
Project background and existing problems and difficulties:
Low carbon, energy conservation, and emission reduction have become the blessing options for countries and industries to adjust their energy structure, improve energy utilization, and develop green power. Developing a sustainable circular economy marked by low energy consumption, low emissions, and low pollution has gained recognition from the whole society. Relying on the digestion and absorption of introduced technology, adhering to independent design and production, secondary development and innovation, Shanggu Company has formed the independent design, manufacturing and development capabilities of power station movable blade adjustable axial flow fan products. Based on this, it supports 300MW, 600MW, and 1000MW thermal power unit boilers with adjustable movable blade primary, supply, induced draft fans and other products, and has become a professional enterprise supporting fans for large-scale thermal power station units. It has the market expression power of supporting fans for large-scale thermal power unit desulfurization and denitrification devices. It has considerable market competitiveness in terms of supporting desulfurization equipment systems for thermal power units.
On the basis of the successful development of RAF desulfurization booster fans, Shanggu Company adapts to changing market needs and faces difficulties. It develops energy-saving and environmentally friendly desulfurization and denitrification induced draft combined fans for supercritical coal-fired units of 600MW and above (induced draft, desulfurization and denitrification functions are integrated). It is not only the correct choice under the adjustment of the national industrial strategy and the market situation, but also the development direction for enterprises to participate in protecting the ecological environment and embark on the path of sustainable and healthy development.
The promotion and application of project technology is subject to the implementation of policy mechanisms and environmental protection responsibilities, and there are still problems of unbalanced development.
Main research contents and results achieved
The project has carried out technological innovation and technical research in terms of improving product structure and performance and improving overall functions. It aims to improve the excellent aerodynamic performance of fans; improve the patented professional sealing technology of fans; improve the special process technology of fan blades for corrosion resistance, high temperature resistance and wear resistance; Mechanical design technology for large steel structural parts to improve the safe operation of fans under hot conditions; Research has been carried out on the own design and manufacturing technology of large-scale hydraulic adjusting devices to improve blade adjustment functions, and the results of successful application of prototypes in supercritical coal-fired units of 600MW and above have been achieved.
Technical and economic indicators and scientific values
After several years of key technology research, prototype trial production, mature technology and customization, large-scale batch production has been formed. During the period from 2010 to 2012, the project's energy-saving and environmentally friendly desulfurization, denitrification and induced air combined fan output value reached 118.012 million yuan; domestically produced fans also replaced imports and obtained export orders; The project products not only meet the functional technical requirements for use, but are recognized by desulfurization, denitrification and environmental protection companies and users, and basically maintain a corresponding market share.
Published papers and patents, domestic and foreign evaluations, citations, or promotion and application, and economic and social benefits. Talent cultivation, promotion of discipline development, industry scientific and technological progress, etc.
Through the implementation of the project, on the basis of obtaining four patents including "Thin Oil Lubricating Device for Leaf Bearings of Adjustable Fans with Moving Blades for Power Stations"(invention), we successfully applied for invention on the design and processing technology of moving blades of desulfurized, denitrification and induced draft combined fans. Patent "Supersonic Spraying Process for Composite Coating on Fan Blade Surface"(201110450098.7);
Through the implementation of the project, three papers were published, including "Selection of Mixed Fan Schemes for Induced Air, Desulfurization, and Denitration Fans with Adjustable Moving-Blade Axial Fan", which discussed the development and application of combined fans for desulfurization, denitrification and induced air for energy-saving and emission reduction transformation of thermal power units; The independent design ability of scientific and technological personnel has been improved, and their skills have been gained to a higher level. Two graduate students and 4 engineers have become training targets for scientific and technological leaders, laying the foundation for improving the technological level of enterprises and scientific and technological progress in the industry.