重力带压长距离输水系统瞬态分析
Transient Analysis on Long Distance Gravity Pressure Water Transfer System
浏览(1629) 下载(6)
- 引用格式:
-
何,化,曹,亮,张永红.重力带压长距离输水系统瞬态分析[J].天然气与石油,2016,34(5):0.doi:
He Hua, Cao Liang, Zhang Yonghong.Transient Analysis on Long Distance Gravity Pressure Water Transfer System[J].Natural Gas and Oil,2016,34(5):0.doi:
- DOI:
- 作者:
- 何 化 曹 亮 张永红
He Hua, Cao Liang, Zhang Yonghong
- 作者单位:
- 中国石油集团工程设计有限责任公司西南分公司
China Petroleum Engineering Co., Ltd.Southwest Company
- 关键词:
- 长距离输水；瞬态分析；水锤防护
Long distance water transfer; Transient analysis; Water hammer protection
- 摘要:
- 在地形条件允许的情况下，设计了1条长70 km，最大高差210 m的重力带压长距离输水管道，该输水管道起端高于末端，无泵等动力源，系统设计压力为2.5 MPa。为解决工程中无动力输水系统的可靠性问题，使用KYPIPE模拟分析了极端工况，发现整个系统末端节点出现了大幅升压，达355.34 m水柱(1 m水柱=9.8 kPa)，而最大负压出现在系统起端，达到了-10 m的水汽化压力。在末端设置了水击泄压阀，沿线安装31台空气阀来保护系统，实施后系统安全稳定运行。
A long distance gravity and pressure water transfer pipeline with the length of 70 km and maximum elevation difference of 210 m had been designed under allowable topographic condition. Without power source like pumps, the start joint is higher than the end joint of this system and the system design pressure is 2.5MPa. Due to the lack of power system for water lifting, and to keep the system operating at stable status, the worst operating situation had been analyzed by the software KYPIPE, the highest surge happened at the end joint of this system, which reached to the head of 355.34 m (1 m water head column = 9.8 kPa), while the lowest pressure happened at the start joint of this system, which reached to water evaporation pressure point of -10 m. A surge relief valve had been designed at the end joint of this system and 31 air valves were settled along with this pipeline to guarantee safe operation.
