en.Wedoany.com Reported - Today (April 1), two compressor units at the Quzhou Compressor Station of the West-to-East Gas Pipeline Phase II completed a 72-hour trial operation after converting from gas turbines to electric motors. All performance indicators met the design specification requirements, marking the successful completion of China's first compressor unit "gas-to-electric" conversion in the long-distance pipeline sector.
The pipeline compressor unit "gas-to-electric" conversion project replaces traditional gas power systems with efficient electric motor drive systems. The units no longer consume natural gas as fuel, which not only reduces emissions but also improves operational efficiency and lowers maintenance costs. This newly commissioned project involved the installation of two 18-megawatt electric motors and frequency converters, along with related auxiliary systems. The design pressure is 10 MPa, and all equipment is domestically produced. The core components of the compressors were also simultaneously updated, further enhancing the unit's operational efficiency, stability, and maintenance convenience.
Shang Fei, Deputy Manager of Zhejiang Gas Transmission Branch, Zhejiang Provincial Natural Gas Pipeline Network Company, PipeChina: The commissioning of the compressor unit gas-to-electric conversion project can increase the pipeline transportation capacity of the Nanchang-Shanghai branch line of the West-to-East Gas Pipeline Phase II by 25%. This is of great significance for further enhancing the pipeline network's supply security and emergency peak-shaving capabilities in the Yangtze River Delta region.
Compressor units are the key power equipment for long-distance natural gas pipelines. If natural gas pipelines are likened to the "arteries" of a nation's energy system, then compressor units are the "heart" that ensures the continuous natural gas transmission. In long-distance transportation, a compressor station is typically needed every 150-200 kilometers. The compressor units pressurize the natural gas to overcome pipeline resistance and ensure the smooth flow of gas.
Shang Fei: After converting the gas-driven units to electric-driven units, the project is expected to reduce annual natural gas consumption by approximately 35 million cubic meters and cut carbon dioxide emissions by about 76,000 tons.
The Quzhou Station is the first station and an important hub station in Zhejiang Province for the Nanchang-Shanghai branch line of the West-to-East Gas Pipeline Phase II. Its downstream pipelines cover areas including Jinhua, Zhuji, Xiaoshan, Jiaxing, and Jinshan in Shanghai. It also undertakes the important task of transferring natural gas to Jiangsu Province. Currently, the West-to-East Gas Pipeline Phase I and II supply over 5 billion cubic meters of gas to Zhejiang Province annually, providing strong support for economic and social development and meeting the energy needs of people's livelihoods.
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