What do you mean, four in and five out?

"Four entrances" means that natural gas enters Zhongwei Station from West Line 1, West Line 2, West Line 3 and Gui Zhong Line; "Five ports" means that natural gas is exported to Zhongwei Station from West Line 1, West Line 2, Zhongjing tie line of West Line 2, Zhongjing tie line and Gui Zhong line of West Line 3 respectively.

Zhongwei Station's unique "four entrances and five places" has realized the connection between the northwest energy channel of natural gas supply and the south-north energy channel, where domestic gas sources, central Asian gas sources and China-Myanmar gas sources can be deployed, realizing the flexible deployment of gas sources during the supply of natural gas in the north in winter, further ensuring the safety of gas supply in the north in winter.

Extended data:

Zhongwei Station has the functions of pigging, separation, metering, pressure regulation, distribution, pressurization and gas analysis. However, in June 2004, 5438+ 10 was put into operation as a pigging station. After two gas-driven compressor units were put into operation in June 2005 and June 2006, they were upgraded from pigging station to compressor station. 201010 After the Zhongwei Liaison Station of the West Second Line was put into operation, the natural gas increased from "one in and one out" to "two in and three out", realizing the interconnection between the West Second Line and the West First Line. 20 12 7 After the first Zhongwei station of Qianzhong Railway was put into operation, Zhongwei Station began to supply gas to Qianzhong Railway.

On October 20 14, 165438+ 10, the Zhongwei Liaison Station of the West Third Line was put into operation, and Zhongwei Station began to receive gas from the West Third Line and transport it to the West Second Line, Gui Zhong Line and Zhongjing Liaison Line of the West Second Line. On February 20 16, 16, the west first line project of China-Guizhou line was completed and put into operation, which realized the south-to-north gas transfer project and had the function of transporting the natural gas imported from China-Myanmar pipeline back to Zhongwei station and then to Beijing-Tianjin-Hebei region.

After the Zhongjing connecting line of the West Third Line was put into operation in October 20 1 17 10, Zhongwei Station added another gas supply channel to Beijing-Tianjin-Hebei, and added "one exit" (from the West Third Line to Jingbian), which realized the gas transmission function of "four in and five out" and added another guarantee for Beijing-Tianjin-Hebei gas supply.

China Petroleum News-"four in and five out" has a daily average of 200 million cubic meters to ensure a stable supply.