【Ten Years of Rapid Development in Chemical Engineering Equipment】Over 450 tons of DN6350 ultra-large turbine inlet butterfly valves from 1965 to 2022
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This post was last edited by Desert Fish on 2022-12-12 at 23:00. Watch the decade-long development of chemical processing equipment; praise the prosperity and strength of modern China. Replies are rewarded; discussions are welcome. ------------------------------------------- After a year of production, the DN6350 super-large turbine inlet butterfly valve manufactured by Hubei Hongcheng General Machinery Co., Ltd. has recently passed the acceptance tests. With a weight of over 450 tons and a diameter of 6.35 meters, this valve has set a new record for the company in terms of manufacturing the largest DN6000 turbine inlet butterfly valve in the domestic industry; it is now the butterfly valve with the largest diameter in the country. The butterfly valve, about three stories tall, is installed in the company’s self-developed super-large valve testing center. An on-site inspection team composed of China Dongfang Electric Corporation and Bureau Veritas is conducting tests on technical parameters such as sealing pressure. They are in video connection with the on-line inspection team from the Tanzania **Electricity Company to jointly evaluate various numerical indicators. Luo Xiaonan, an on-site inspector from Bureau Veritas, said that the inspection team conducted a thorough assessment of technologies such as the working seal of the butterfly valve; all quality indicators were excellent, and it passed the assembly test on the first attempt. Soon after, this butterfly valve will be shipped to the Julino Hydropower Station project in Tanzania to ensure the safe operation of the station’s turbines.
It is said that the Julino Hydropower Project in Tanzania is known as Tanzania’s \"Three Gorges Project\". In 2021, the project purchased 9 vertical mixed-flow turbines in China, resulting in a total installed capacity of 2,115 megawatts. Thanks to its advanced production technologies, Hongcheng General Machinery Company won the bid for 5 sets of super-large turbine inlet butterfly valves at one time. To ensure the smooth production and assembly of its products, the company invested 30 million yuan in technical upgrades, upgrading production equipment such as annealing furnaces and sandblasting rooms, purchasing new large-scale lifting equipment, and introducing intelligent manufacturing machinery such as welding robots, thereby overcoming various technical challenges related to the welding, processing, and final assembly of large butterfly valves. At present, the other 4 butterfly valves have entered the production and processing stage, and all products will be delivered for use by next year.
Founded in 1956, Hongcheng General Machinery is a **-level high-tech enterprise as well as a **-level key specialized and innovative “little giant” enterprise. Adhering to a product strategy focused on large-scale, high-tech, specialized, and innovative solutions, it possesses core technologies with independent intellectual property rights in the design and manufacturing of ultra-large high-end valves. It has the capability to mass-produce butterfly valves with a diameter of 8 meters and ball valves with a diameter of 3.5 meters, making it the largest manufacturer of large-scale high-end valves in China. This year, the company’s sales orders amounted to 500 million yuan, of which approximately 20 million dollars came from foreign trade orders. Next year, the company will invest 100 million yuan in technological upgrades to undertake orders for the production of ultra-large valves with a diameter of up to 7.5 meters. It will focus its efforts on research and development in order to meet the demands for manufacturing products related to green energy, such as ball valves for pump-storage power units. The goal is to become the world’s leading manufacturer of valves and to contribute to the development of key domestic technologies.
The quality of this butterfly valve seems to be substandard; let’s put a label on it and see how it performs in a few years!
Butterfly valves, also known as flap valves, are one of the most common valves used for flow control; they are named so because the internal flap flips over like butterfly wings when the valve is opened or closed. Previously, the largest butterfly valve in China had an inner diameter of 6 meters; it was manufactured by Hubei Hongcheng General Machinery Co., Ltd. located in Jingzhou City, and was delivered to the Lu’antan Hydropower Station in Fujian in 2016. Today, with the installation of the butterfly valve with an inner diameter of 6.35 meters, Hongcheng Company has successfully broken its own record. Founded in 1956, Hubei Jingzhou Hongcheng General Machinery is a **-level high-tech enterprise as well as a **-level key specialized and innovative “little giant” enterprise. Adhering to a product strategy focused on large-scale, high-quality, specialized, and innovative products, it possesses core technologies with independent intellectual property rights in the design and manufacturing of ultra-large high-end valves. It has the capability to mass-produce butterfly valves with a diameter of 8 meters and ball valves with a diameter of 3.5 meters, making it the largest manufacturing base for large-scale high-end valves in China. In 2022, the company’s sales orders amounted to 500 million yuan, of which approximately 20 million dollars came from foreign trade orders. Next year, the company will invest 100 million yuan in technological upgrades to undertake orders for the production of ultra-large valves with a diameter of up to 7.5 meters. It will focus its efforts on research and development in order to meet the demands for manufacturing products related to green energy, such as ball valves for pump-storage power units. The goal is to become the world’s leading manufacturer of valves and to contribute to the development of key domestic technologies.