My largest thermal power unit high pressure pipe is completed in Bohai Heavy Industry

On December 13, at present, China's largest thermal power unit Tianjin Beijiang 2×1000 MW ultra-supercritical thermal power plant high-pressure pipe fittings completed production in Bohai Heavy Industry Pipeline Co., Ltd., opening up domestic high-pressure pipe fittings into a million kilowatt ultra-supercritical power plant. precedent.
It is understood that Tianjin Beijiang 2×1000 MW thermal power plant is currently the largest thermal power unit in the world, and the required high-pressure pipe fittings are extremely demanding. The materials of Bohai Heavy Industry are A335P92, P22 and 106C, which can withstand the pressure of 39Mpa and the high temperature of 610°C. The wall thickness of the pipe fittings is 167mm, and the wall thickness of the three-way shoulder is 201mm. The experimental pressure of this product broke through 60Mpa, and all the inspection data were all qualified, which broke the monopoly of foreign manufacturers.
According to Liu Shangci, Chairman of Bohai Heavy Industry, Bohai Heavy Industry Pipeline Co., Ltd. was formerly known as Bozhou Bohai Pipe Fittings Co., Ltd., and was renamed as Bohai Heavy Industry on December 1, 2007. Before the high-pressure pipe fittings of our million-kilowatt units all rely on imports. In order to realize the localization of large-scale equipment, Shanghai Boiler Factory has undertaken the inspection of a number of domestic manufacturers by the relevant experts and technicians after undertaking the 2×1000 MW ultra-supercritical project in Tianjin, and finally selected Bohai Heavy Industry. .
After several months of careful planning, Bohai Company successfully completed the production of this high-pressure pipe fittings from the careful calculation of material selection, mold manufacturing and process flow. It is understood that the successful production of this product has aroused widespread concern in the same industry in China, and many power plants and boiler factories have sent technicians to visit. Especially in Harbin Boiler Factory, they quickly dispatched professional technicians such as crafts and materials to find reference data for the millions of kilowatt units that Bohai Company contracted.
With the implementation of the large-scale and small-scale planning in the national electricity market, the proportion of large-scale power plants has gradually increased. As early as two years ago, Bohai Heavy Industries began preparations for the second phase of the expansion project to produce high-pressure pipes instead of imported ones. Now the project has been listed as a key project in Hebei Province and is gradually being put into production. It is reported that Bohai Heavy Industry will build a complete industrial chain of high-pressure pipelines.

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