托普索合成塔压力升高的原因分析及对策

发布时间：2018-04-22 20:21

本文选题：氨合成塔 + 压力升高　；参考：《西安石油大学》2015年硕士论文

【摘要】：新疆库尔勒塔里木大化肥项目合成氨设计生产能力45万t/a,采用丹麦托普索公司S一300径向合成氨生产工艺,是目前国内单套生产能力最大的化肥装置之一。为了降低能耗,提高氨的产量,达到设计产能。论文从各个方面分析了氨合成塔压力升高的原因,通过采取有效的方法消除了不利因素,控制了压力,提高了氨产量。论文对引起合成塔压力升高的各种因素做了全面的理论分析,并结合生产实际,提出了具体的消减措施。理论结合实际。通过一系列的验证手段,如氨压缩机出口冷凝器在线清洗;合成塔进出口换热器泄漏原因及工艺处置;液氨受槽至不凝气氨冷器,低压驰放气流量的最佳值确认等,提高了装置的生产能力,保证了装置的平稳运行。同时,还为国内同类装置类似问题,提供了有效的处置方案,具有极高的现实意义。本文对方案措施进行量化处理,具体体现在可执行性和可操作性。步骤清晰明确,是经过数次反复失败后,反复确认后的精确数据。如对压缩机转速、防喘阀的控制都是极为科学合理的。论文所涉及的经济效益是惊人的,问题的解决,每年可以为企业挽回1.9亿的经济损失,这相当于一个大型化工厂的效益总和。
[Abstract]:The design capacity of ammonia synthesis in Kuerle Tarim chemical fertilizer project in Xinjiang is 450000 t / a, and the production process of S-300 radial synthetic ammonia is adopted in Topso, Denmark. It is one of the largest single chemical fertilizer units in China at present. In order to reduce energy consumption, increase ammonia production, achieve design capacity. In this paper, the causes of pressure rise in ammonia converter are analyzed from various aspects. The unfavorable factors are eliminated, the pressure is controlled and the ammonia output is increased by adopting effective methods. This paper makes a comprehensive theoretical analysis of various factors that cause the pressure rise of the converter, and puts forward the concrete measures for reducing the pressure in combination with the production practice. Theory is combined with practice. Through a series of verification measures, such as on-line cleaning of the outlet condenser of ammonia compressor, leakage cause and process disposal of heat exchanger at the inlet and outlet of the converter, confirmation of the optimum value of the flow rate of low-pressure gallop through the ammonia condenser from the tank to the non-condensed gas, etc. The production capacity of the device is improved and the smooth operation of the device is ensured. At the same time, it also provides an effective disposal scheme for similar devices in China, which is of great practical significance. This article carries on the quantification processing to the plan measure, concretely manifests in the execution and the maneuverability. The steps are clear and clear, after several repeated failures, after repeated confirmation of accurate data. Such as compressor speed, anti-surge valve control is extremely scientific and reasonable. The economic benefit involved in the paper is amazing. The solution of the problem can save 190 million of the economic loss for the enterprise every year, which is equivalent to the sum of the benefits of a large chemical plant.
【学位授予单位】：西安石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ113.252

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