For the first time, China's long-distance pipeline compressor stations have switched their compressor units from combustion to electricity

    The reporter learned from the National Pipeline Network that two compressor units at Quzhou Compressor Station on the West East Gas Pipeline 2 have completed a 72 hour trial run of gas turbine to electric motor conversion, and all performance indicators meet the design specifications, marking the successful completion of the first compressor unit "gas to electric conversion" in China's long-distance pipeline field.

    The pipeline compressor unit "gas to electricity" project replaces the traditional gas power system with an efficient electric motor drive system. The unit no longer consumes natural gas as power fuel, which reduces emissions, improves operational efficiency, and reduces maintenance costs. This project involves the construction of two new 18 MW motors, frequency converters, and related ancillary systems with a designed pressure of 10 MPa. All of them will use domestically produced equipment, and the core components of the compressor will be updated simultaneously, further improving the operational efficiency, stability, and ease of operation and maintenance of the unit.

    Shang Fei, Deputy Manager of Zhejiang Gas Transmission Branch of Zhejiang Provincial Natural Gas Pipeline Network Company of National Pipeline Network Group: After the operation of the compressor unit combustion to electricity project, it can increase the pipeline transmission capacity of the Nanchang Shanghai branch of the West East Gas Pipeline 2 by 25%, which is of great significance for further improving the pipeline network's supply guarantee and emergency peak adjustment capabilities in the Yangtze River Delta region.

    The compressor unit is a key power equipment for long-distance natural gas pipelines. If natural gas pipelines are compared to the "main artery" of national energy, then the compressor unit is the "heart" that ensures the continuous transmission of natural gas. In long-distance transportation, it is generally necessary to build a compressor station every 150-200 kilometers to pressurize natural gas through a compressor unit, overcome pipeline resistance, and ensure smooth airflow.

    After converting the combustion driven unit to an electric driven unit, the project will reduce natural gas consumption by about 35 million cubic meters annually and reduce carbon dioxide emissions by about 76000 tons.

    Quzhou Station is the first and important hub station of the Nanchang Shanghai branch of the West East Gas Pipeline 2 entering Zhejiang Province. The downstream pipeline covers Jinhua, Zhuji, Xiaoshan, Jiaxing, and Jinshan in Shanghai, and also undertakes the important task of supplying natural gas to Jiangsu. At present, the first and second lines of the West East Gas Pipeline supply over 5 billion cubic meters of gas to Zhejiang Province annually, effectively ensuring the economic and social development as well as the energy needs of people's livelihoods.