| 气阻致输油泵机械密封过热失效分析与对策 |
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| 引用本文： | 陈俊琪,杜伟,王园园.气阻致输油泵机械密封过热失效分析与对策[J].油气储运,2014(2):226-228. |
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| 作者姓名： | 陈俊琪 杜伟 王园园 |
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| 作者单位： | [1]中国石油天然气管道局东北石油管道公司西部管道项目部,辽宁沈阳110031 [2]中国石油西部管道乌鲁木齐输油气分公司,新疆乌鲁木齐830000 [3]中国石油新疆油田公司采油一厂,新疆克拉玛依834000 |
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| 摘 要： | 西部管道乌鲁木齐输油首站成品油主泵启输及运行中多次出现机械密封泄漏油气油烟的过热失效现象。针对该问题，通过对机械密封失效现象的观察、气阻机理的探讨以及对气阻和杂质堵塞致机械密封失效的现象和原因进行对比分析，确定了气阻是导致机械密封过热失效泄漏油气油烟的主因。同时，提出了机械密封过热失效的解决方法，包括：启泵前需要反复多次对泵腔灌泵以充分排气；运行过程中若发现机械密封压盖及冲洗冷却循环管路快速升温发烫，则应立即在不停泵的状态下缓开泵腔排气阀排气。相关经验可为输油站现场避免发生此类问题提供实践依据。（图2，参6）
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| 关 键 词： | 输油泵 机械密封 冲洗管路 浮力 气阻 过热失效 油气油烟 排气 |
Failure analysis on mechanical seal superheat of oil pump caused by air blockage and countermeasures |
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| CHEN Junqi,DU Wei,WANG Yuanyuan.Failure analysis on mechanical seal superheat of oil pump caused by air blockage and countermeasures[J].Oil & Gas Storage and Transportation,2014(2):226-228. |
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| Authors: | CHEN Junqi DU Wei WANG Yuanyuan |
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| Institution: | 1. West Pipeline Project Dept, Northeast Petroleum Pipeline Company, CPP, Shenyang, Liaoning, 110031; 2. Urttmqi Oil ＆ Gas Transmission Sub-company, PetroChina West Pipeline Company, Urumqi, Xinjiang, 830000; 3. No. 1 Oil Production Plant, PetroChina Xinjiang Oilfield Company, Karamay, Xinjiang, 834000 |
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| Abstract: | During the pumps＇ startup and operation in Urumqi Initial Station of Western Pipeline, mechanical seal superheat failure caused by oil and gas fumes leakage has happened for several times. In view of this problem, by observing the phenomenon of mechanical seal failure, studying the air blockage mechanism, comparing and analyzing the phenomenon and reasons of mechanical seal failure caused by air blockage and impurity blockage, the main reason for mechanical seal superheat failure and oil and gas leakage is identified as air blockage. At the same time, approaches to the mechanical seal superheat failure are proposed, including fluid filling repeatedly to fully discharge air before starting the pump, and during running, slowly opening the valve to vent air immediately when the temperature at the mechanical seal cover and flushing/ cooling circulation tube are in a rising range. It is considered that the relative experiences in preventing the mechanical seal＇s superheat can be taken as a foundation in avoiding this problem in pump stations. （2 Figures, 6 References） |
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| Keywords: | oil pump mechanical seal pipeline flushing buoyancy air blockage superheat failure oil and gas fumes discharge |
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