炼油技术与工程 ›› 2025, Vol. 55 ›› Issue (4): 42-46.

• 配管技术 • 上一篇    下一篇

成品油长输管道压力控制设计总结

徐兴文   

  1. 中石化广州工程有限公司，广东省广州市 510620
  • 收稿日期:2024-12-30 出版日期:2025-04-15 发布日期:2025-04-21
  • 作者简介:徐兴文，高级工程师，本科，1991年毕业于石油大学（华东）油气储运专业，公司技术副总监，从事石油天然气、LNG、氢能等领域储运工程设计及技术管理工作。联系电话：020-22192711，E-mail：xuxw.lpec@sinopec.com。

Summary of pressure control design for long-distance refined oil pipelines

Xu Xingwen   

  1. SINOPEC Guangzhou Engineering Co., Ltd., Guangzhou, Guangdong 510620
  • Received:2024-12-30 Online:2025-04-15 Published:2025-04-21

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摘要：

压力控制是成品油长输管道设计的关键点，直接关系到管道的本质安全。压力控制方案的确定应根据管道工艺特点及沿线高程情况，按全线一个完整、封闭的水力系统进行稳态及瞬态分析确定。文中结合成品油长输管道工程的特点，按首站、中间泵站、末站及各站间压力进行综合分析，同时考虑沿线各站机泵启停、站场阀门、站间线路切断阀关闭等工况下的瞬态压力变化，对全线各站进行可靠的等级选取、压力调节和控制、超压保护、全线水击保护设计等进行了系统总结，可为成品油管道的工艺设计、运行管理提供指导。

关键词: 长输管道, 压力控制, SCADA, 站控系统, 水击压力, 瞬态压力, 超前保护, 超压保护

Abstract:

Pressure control is a crucial aspect in the design of long-distance refined oil pipelines, directly related to the intrinsic safety of the pipelines. The pressure control scheme should be determined through steady-state and transient analysis based on the pipeline process characteristics and the elevation conditions along the pipeline, as a complete and closed hydraulic system along the entire line. Based on the characteristics of the long-distance refined oil pipeline project, a comprehensive analysis of the pressure between each station is conducted according to the initial station, intermediate pumping stations, and terminal station. Considering the transient pressure variations under various operating conditions such as the start and stop of pumps at each station, the opening and closing of station valves, and the closure of inter-station line isolation valves, a more systematic summary is presented on the reliable selection of pressure grades, pressure regulation and control, overpressure protection design, and water hammer protection design for all stations along the pipelines. It can provide guidance for the process design and operation management of refined oil pipelines.

Key words: long-distance pipeline, pressure control, SCADA, station control system, water hammer pressure, transient pressure, advance protection, overpressure protection