As of the beginning of July, 16 stations along the West-East Gas Pipeline, which involved adaptation, all passed pre-acceptance. At this point, since the commercial operation of the West-East Gas Pipeline, the construction of the largest number of station reconstruction and expansion projects has been completed.
The adaptation projects mainly include pressure tapping operations, addition of filter separators, metering skids, and pressure regulating skids, as well as the addition of relevant equipment, odorant equipment bases, and pipes for supplying gas to users at the original pipeline reservations in the station yard. There are a series of operations such as the valve pier foundation and the related facilities for reconstructing the newly added gas consumption. The construction period varies from 4 months to 6 months. The adaptive reconstruction project has heavy tasks and tight schedules. In particular, reconstruction and expansion work is carried out in the production area. The safety risks are high and the construction is difficult.
According to the plan, at the end of May 2010, the first batch of 16 stations in the adaptation project completed bidding. In July 2010, the construction started one after another. By the end of December, the construction of machinery was basically completed. In the first quarter of 2011, the completion of pressure drying, hot-headed connection, and system commissioning was completed. After the completion of the 16 station expansion and expansion project, the West-East Gas Transmission Pipeline and Suining Pipeline will increase their natural gas transmission and sales capacity by more than 3 billion cubic meters.
The 16 stations involved in the first batch of adaptation projects were: Shanxi Puxian Station, Yuxi Boai Station, Lixin Station, Hefei Station, Yanzhou Station, Suzhou-Zhejiang Huqingshan Station, Wujin Station, and Dongqiao Station. Maanshan Station, Shanghai Station, Wuxi Station, Changzhou Station, Jilu Hengshui Station, Dezhou Station, Tai'an Station, and Jiangbei Station in Northern Jiangsu. At present, except at Puxian Station and Jiangdu Station, all stations and stations have rectified the problems found in the pre-acceptance, have the conditions for commissioning, and are ready to accept and accept.
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