China's first 1 million kilowatt ultra-supercritical boiler produced by Harbin Boiler Factory Co., Ltd. was officially put into commercial operation last week. All operating parameters have reached design standards, marking the successful introduction and digestion of China's million kilowatt ultra-supercritical boiler technology. China's power industry technology and equipment level and manufacturing capacity have reached the international advanced level, and officially entered the ranks of international giants in boiler manufacturing.
A number of the country's most boilers were installed on Unit 1 of Huaneng Group Zhejiang Yuhuan Power Plant. As a supporting project for the introduction of ultra-supercritical unit technology in the National 863 Program, the planned installed capacity of Huaneng Yuhuan Power Plant is 4×1 million kilowatts ultra-supercritical coal-fired units. The boiler produced by Haguo has created many nationals: the main steam pressure reaches 26.25 MPa, and the main steam and reheat steam temperature reaches 600 degrees Celsius. It is the largest single coal turbine with the highest operating parameters in China. Generator set; in terms of unit performance, thermal efficiency is up to 45%, Bian critical unit is increased by 4%, 2% higher than supercritical unit, unit coal consumption is 272.9g per kWh, 7-11 times per kWh of supercritical unit克,bia critical (600,000 kW) unit is 18 grams per kWh; the unit is designed with low NOx burner and advanced combustion technology of Mitsubishi Corporation of Japan, with lower NOx emissions; the unit also has good starting operation and peak shaving performance. It can meet the peak load requirements of the grid load and operate under variable pressure within a large load range (30% to 100% of rated load).
Challenge the new material welding process Huaneng Yuhuan project represents the highest level of China's current equipment manufacturing and power generation industry. This project is an extremely severe test for the overall technical strength and manufacturing strength of China's boiler industry. New furnaces, new designs, and new processes, from technical preparation to manufacturing, can be said to be challenging everywhere. Among them, the four-stage superheater outlet header and the main steam pipeline SA-335P122 material are the first application in China, and the welding is very difficult. According to the welding materials and processes selected by the Japanese side, it is difficult to meet the requirements according to the equipment of the pot, and the welding efficiency is extremely low, which cannot meet the requirements of the production cycle. Based on independent innovation, Haguo established a research team to tackle the welding process qualification of P122 materials. The tackling team broke the limitations of the original welding process and welding materials of the Japanese side, boldly adopted the submerged arc automatic welding process and welding materials, and finally completed three key process evaluations, and the process evaluation results were all qualified. Harbin's innovation in the welding process of new materials has driven the development of related industries in China and promoted the localization of the production of millions of kilowatts of ultra-supercritical boilers.
The boiler of Yuhuan No. 1 unit was successfully put into operation, marking the first breakthrough of the domestic boiler in the field of domestic million-kilowatt ultra-supercritical unit boilers. It also indicates that the Ha-pot has completed the transformation from subcritical to supercritical and ultra-supercritical boiler production. With large-scale production capacity.
A number of the country's most boilers were installed on Unit 1 of Huaneng Group Zhejiang Yuhuan Power Plant. As a supporting project for the introduction of ultra-supercritical unit technology in the National 863 Program, the planned installed capacity of Huaneng Yuhuan Power Plant is 4×1 million kilowatts ultra-supercritical coal-fired units. The boiler produced by Haguo has created many nationals: the main steam pressure reaches 26.25 MPa, and the main steam and reheat steam temperature reaches 600 degrees Celsius. It is the largest single coal turbine with the highest operating parameters in China. Generator set; in terms of unit performance, thermal efficiency is up to 45%, Bian critical unit is increased by 4%, 2% higher than supercritical unit, unit coal consumption is 272.9g per kWh, 7-11 times per kWh of supercritical unit克,bia critical (600,000 kW) unit is 18 grams per kWh; the unit is designed with low NOx burner and advanced combustion technology of Mitsubishi Corporation of Japan, with lower NOx emissions; the unit also has good starting operation and peak shaving performance. It can meet the peak load requirements of the grid load and operate under variable pressure within a large load range (30% to 100% of rated load).
Challenge the new material welding process Huaneng Yuhuan project represents the highest level of China's current equipment manufacturing and power generation industry. This project is an extremely severe test for the overall technical strength and manufacturing strength of China's boiler industry. New furnaces, new designs, and new processes, from technical preparation to manufacturing, can be said to be challenging everywhere. Among them, the four-stage superheater outlet header and the main steam pipeline SA-335P122 material are the first application in China, and the welding is very difficult. According to the welding materials and processes selected by the Japanese side, it is difficult to meet the requirements according to the equipment of the pot, and the welding efficiency is extremely low, which cannot meet the requirements of the production cycle. Based on independent innovation, Haguo established a research team to tackle the welding process qualification of P122 materials. The tackling team broke the limitations of the original welding process and welding materials of the Japanese side, boldly adopted the submerged arc automatic welding process and welding materials, and finally completed three key process evaluations, and the process evaluation results were all qualified. Harbin's innovation in the welding process of new materials has driven the development of related industries in China and promoted the localization of the production of millions of kilowatts of ultra-supercritical boilers.
The boiler of Yuhuan No. 1 unit was successfully put into operation, marking the first breakthrough of the domestic boiler in the field of domestic million-kilowatt ultra-supercritical unit boilers. It also indicates that the Ha-pot has completed the transformation from subcritical to supercritical and ultra-supercritical boiler production. With large-scale production capacity.
Metal fabrication is the building of metal structures by cutting, bending, and assembling processes. It is a value added process that involves the construction of machines and structures from various raw materials. The standard raw materials used by metal fabricators are plate metal, formed and expanded metal, tube stock, welding wire and welding rod. Metal fabrication jobs usually start with engineering drawings including precise measurements then move to the fabrication stage and finally to the installation of the final project.
Sheet Fabrication Parts,Sheet Metal Fabrication,Oem Fabrication Parts,Precision Sheet Metal Fabrication
Ningbo Allytech Imp. & Exp. Co., Ltd. , http://www.allytechchina.com