GE水煤浆气化装置氧气系统出现的问题及应对措施
中国石油化工股份有限公司九江分公司, 江西九江 332004
| 摘 要： | GE水煤浆气化装置高压氧气系统在运行过程的安全性，至关重要！高压和高浓度对氧气管道和阀门都构成了极大的运行风险。重点介绍煤制氢装置投入正常生产运行后，先后出现的几起氧气事故及事件（管线燃爆、泄漏、煤浆污染等）问题，从源头进行原因分析，提出改进优化应对措施，从而有效确保氧气系统有效安全运行。本文主要针对历年运行过程中，发生的典型案例进行回顾分析，总结以往事故及事件处置过程的应急判断、操作调整、停工处理和事故及事件应对分析改进措施。氧气系统的管线、阀门及相关附件，在生产运行过程中本身就存在一定的潜在危险性。氧气系统在施工作业之初，管线焊接安装、脱脂钝化、化学清洗、分析检测等全面监控。并且氧气系统验收标准极为苛刻和严格：要求焊接氧化物彻底剥离；紫光照射无蓝点；樟脑片及密闭性测试合格。同时，运行期间的密闭性和巡回检查都十分重要。只有从严把控氧气系统的安全性，才能在源头及时控制异常及隐患的发生。 |
| 关 键 词： | 燃爆; 污染; 多硫酸; 腐蚀; 密闭性; 反窜; 限流孔板 |
| DOI： | 10.57237/j.cse.2023.04.001 |
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收稿日期: 2023-08-24
接受日期: 2023-09-14
在线出版日期: 2023-10-09
Problems and Countermeasures in the Oxygen System of GE Coal Water Slurry Gasification Plant
China Petroleum and Chemical Corporation Jiujiang Branch, Jiujiang 332004, China
| Abstract: | The safety of the high-pressure oxygen system in the operation of GE coal water slurry gasification device is crucial! High pressure and concentration pose significant operational risks to both oxygen pipelines and valves. This article focuses on several oxygen accidents and events (such as pipeline explosion, leakage, coal slurry pollution, etc.) that occurred after the coal hydrogen production unit was put into normal production and operation. The root causes were analyzed, and improvement and optimization measures were proposed to effectively ensure the effective and safe operation of the oxygen system. This article mainly reviews and analyzes typical cases that have occurred during the operation process over the years, and summarizes the emergency judgment, operation adjustment, shutdown handling, and accident and event response analysis and improvement measures for past accidents and event handling processes. The pipelines, valves, and related accessories of the oxygen system inherently pose certain potential hazards during production and operation. At the beginning of construction operations, the oxygen system comprehensively monitors pipeline welding and installation, degreasing and passivation, chemical cleaning, analysis and testing, etc. And the acceptance standards for the oxygen system are extremely strict and demanding: it requires the welding oxide to be completely peeled off; Purple light irradiation without blue spots; Camphor slices and sealing test are qualified. At the same time, airtightness and patrol inspection during operation are very important. Only by strictly controlling the safety of the oxygen system can we timely control the occurrence of anomalies and hidden dangers at the source. |
| Keywords: | Explosion; Pollution; Polysulfuric Acid; Corrosion; Tightness; Anti Channeling; Restriction Orifice Plate |
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