| 浮顶罐中央排水管泄漏油气扩散激光检测研究 |
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| 引用本文： | 李栋,郭曦,王迪,马鹏博,孙伟栋,王明吉.浮顶罐中央排水管泄漏油气扩散激光检测研究[J].应用光学,2021,42(5):913-918. |
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| 作者姓名： | 李栋 郭曦 王迪 马鹏博 孙伟栋 王明吉 |
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| 作者单位： | 1.东北石油大学 土木建筑工程学院，黑龙江 大庆 163318 |
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| 基金项目： | 提高油气采收率教育部重点实验室开放课题（NEPU-EOR-2019-14);博士后研究人员落户黑龙江科研启动资助项目（BHL-Q20101);（东北石油大学优秀中青年科研创新团队项目（KYCXTD201901） |
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| 摘 要： | 浮顶罐中央排水管油气泄漏研究对及时制定合理的应急措施、预防重大事故发生有重要意义。介绍了一种判断中央排水管泄漏的方法。通过数值模拟分析了不同泄漏位置对中央排水管泄漏后报警时间的影响，模拟发现3个泄漏位置的报警时间最大相差1 308 s，说明泄漏位置对报警时间的影响较大。采用浓度为10%的甲烷代替油气进行了中央排水管油气泄漏激光检测可行性的实验验证。结果表明:TDLAS技术可用于中央排水管泄漏报警系统中油气浓度的检测, 对浮顶罐中央排水管泄漏报警系统的设计有一定的参考意义。
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| 关 键 词： | 浮顶罐 中央排水管 泄漏 数值模拟 激光检测 |
| 收稿时间： | 2021-04-14 |
Laser detection of oil-gas diffusion in central drain pipe of floating-roof tank |
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| Affiliation: | 1.School of Civil Engineering and Architecture, Northeast Petroleum University, Daqing 163318, China2.School of Physics and Electronic Engineering, Northeast Petroleum University, Daqing 163318, China3.SINOPEC Pipeline Storage and Transportation Co., Ltd., Xuzhou 221008, China |
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| Abstract: | The research on oil-gas leak from the central drain pipe of floating-roof tank is of great significance for the timely formulation of reasonable emergency measures and the prevention of major accidents. A method for judging the leak of the central drain pipe was introduced. The influence of different leak locations on the alarm time after the leak of central drain pipe was analyzed through the numerical simulation. The simulation showed that the maximum difference between alarm times of the three leak locations was 1 308 s, which meant that the leak location had a greater impact on the alarm time. The feasibility of laser detection of oil-gas leak in central drain pipe was verified by using CH4 with a concentration of 10% instead of the oil-gas. The results show that the tunable diode laser absorption spectroscopy (TDLAS) technology can be used to detect the oil-gas concentration in the leak alarm system of central drain pipe, which provides a certain reference meaning for the design of the leak alarm system of central drain pipe of floating-roof tank. |
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