【Ten Years of Great Development in Chemical Equipment】A decade of progress from 2011 to 2021! Develop China’s first 30-megawatt gas-driven compression unit
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Witnessing the decade-long rapid development of chemical processing equipment, I admire the prosperity and strength of modern China. Wishing everyone a happy New Year, and may their families enjoy peace and good health. I hope this contribution will inspire further participation from others; with everyone’s involvement, the forum becomes even more vibrant. HaiChuan is better with you all, and I invite everyone to participate more actively in discussions on this forum. ------------------------------------------------------------------ In natural gas transmission pipelines, compression stations consisting of multiple combustion-driven compressors are installed every 150 to 200 kilometers, and they provide the necessary pressure to enable long-distance transportation of gas. On China’s nearly 80,000 kilometers of long-distance pipelines, the gas-driven compression units that are crucial for ensuring the safety of these energy arteries were for a long time monopolized by foreign companies; their products were expensive, and the costs associated with maintenance later on were even higher. To promote the transformation and upgrading of the energy equipment manufacturing industry, the **Energy Bureau organized the development of a plan for the localization of 30-megawatt gas-driven compressor units, with Institute 703 responsible for addressing the technical challenges related to these products. In November 2009, the **Energy Bureau decided to pursue the localization of three key equipment types for long-distance natural gas pipelines: 20-megawatt electric-driven compressors, 30-megawatt diesel-driven compressors, and high-pressure large-diameter fully welded ball valves. It is planned to produce 7 sets of 20MW-class electric drive compression units, with two of them to be shipped first to Huangpi Station and Gaoling Station on Line 2 West for industrial application tests at those stations. The remaining 5 units will be installed, 1 each at Pengyang Station and Lushan Station, with 3 more to be installed at Gaoling Station. It is planned to produce two 30MW gas-driven compressor units, which will initially be installed at the Yandun Station on Line 3 of the Western Pipeline and at the Quzhou Station on the Shanghai branch of Line 2. Under the leadership and promotion of the **Energy Administration, China National Petroleum Corporation’s West-East Gas Pipeline Company, on behalf of CNPC, signed development contracts with the main contractor, the 703rd Research Institute of China State Shipbuilding Corporation, as well as other participating enterprises such as Harbin Turbine Factory Co., Ltd. of Harbin Electric Group and Shenyang Blower Group Co., Ltd.
During the 7-year development process of domestic gas-driven engines, the 703rd Research Institute took full account of the situation regarding the development and production of domestic marine gas turbines. By making use of existing conditions and resources, and by combining imports with domestic production, it adopted a step-by-step approach to reduce technical risks.
Research and development is divided into two key phases: In the first phase, imported gas turbines are integrated with domestic compressors and auxiliary systems, achieving a localization rate of 52%, resulting in the prototype \"Product 1\". In the second phase, domestic gas turbines are integrated with domestic compressors and auxiliary systems to create Prototype \"Product 2\", resulting in a 30-megawatt class gas-driven compression unit with a domestic content of over 96%. Currently, Units 2 and 3 at Yandun Station belong to “Product 1”, while Unit 1 compressor belongs to “Product 2”. Unit 703 is responsible for the design and integration of this type of gas turbine, with the core component—the turbine itself—being developed by Harbin Engine Corporation. After nearly 3 years of hard work, in August 2014, Harbin Motor Company successfully delivered the first 30-megawatt gas-fired turbine unit. The first domestically produced 30-megawatt gas-driven compressor unit – Unit 1 at Yandun Station on Line 3 West – achieved its first successful ignition on December 26, 2015. Through the development of domesticization projects, foreign monopolies have been broken, and self-developed 30-megawatt class gas-fired compression units have been created, marking a breakthrough from scratch and establishing independent intellectual property rights. This holds great strategic significance for the innovative development of energy equipment in China. On April 24, 2021, China’s first 30-megawatt-class gas turbine-driven compressor unit, developed under the leadership of the 703rd Research Institute of China State Shipbuilding Corporation, successfully passed the **acceptance test in Quzhou City, Zhejiang Province.
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