合成气压缩机高负荷适应性技术研究和改造

发布时间：2019-03-12 12:30

【摘要】：中国的工业发展越来越快，氨做为工业的重要原料及氨化饲料，其作用日益凸显。因此，各个合成氨企业都在提高本企业的合成氨产量。在原有的设备基础上提高合成氨产量务必需要使设备高负荷运行。原有设备能否适应高负荷的生产需求成为合成氨企业能否高负荷生产的关键因素。论文主要针对中国石油化工股份有限公司巴陵分公司化肥事业部合成氨装置在高负荷运行过程中，装置的核心设备合成气压缩机暴露出的一系列问题，特别是合成氨产能达到1200吨/天以上时，系统设计参数与运行数据存在较大偏差的问题，通过对企业合成气压缩机在高负荷生产时出现故障的数据进行收集、整理、统计及现场勘查。分析导致设备出现故障的主要原因，针对各个原因进行深入的分析并提出相应的改进措施，最后进行局部改造和工艺优化并予与实验验证。本文研究主要内容有：（1）详述巴陵石化企业合成氨装置及工艺的改造历程，概述了合成氨工艺国内外的发展情况及合成气压缩机的研究现状。（2）运用因果分析法总结归纳出合成气压缩机在运行过程中出现的问题，并将这些问题分为工艺问题，，设备问题及监测问题三类。（3）针对合成气压缩机不能适应高负荷运行的问题，调整工艺路线，对入口压力，合成塔以及高中压透平做了相应的调整。（4）针对中压蒸汽平衡，表冷真空系统，联轴节断裂，联轴节失效等合成气压缩机设备问题进行深入的分析研究，并提出相应的改进措施。（5）针对合成气压缩机机组状态监测系统和大机组综合控制与联锁保护系统（ITCC）进行升级，并更新诊断系统和调速系统。
[Abstract]:With the rapid development of China's industry, ammonia as an important raw material of industry and ammoniation feed, its role is increasingly prominent. Therefore, each synthetic ammonia enterprise is increasing the synthetic ammonia production of this enterprise. On the basis of the original equipment, it is necessary to make the equipment run at high load to increase the production of synthetic ammonia. Whether the original equipment can adapt to the high load production demand becomes the key factor of the ammonia synthesis enterprise's high load production. This paper mainly aims at a series of problems in the process of high load operation of the synthetic ammonia plant in the chemical fertilizer business unit of Baling Branch of China Petroleum and Chemical Co., Ltd., the core equipment of the plant, the syngas compressor, has exposed a series of problems. Especially when the production capacity of synthetic ammonia is more than 1200 tons / day, there is a big deviation between the design parameters of the system and the running data. Through collecting and sorting out the data of the failure of the synthetic gas compressor in the enterprise when the production load is high, the problem is that there is a big deviation between the system design parameters and operation data. Statistics and site survey. The main causes of equipment failure are analyzed, and the corresponding improvement measures are put forward according to each reason. Finally, the local modification and process optimization are carried out and verified by experiments. The main contents of this paper are as follows: (1) the revamping process of synthetic ammonia plant and process in Baling Petrochemical Company is described in detail. The development of synthetic ammonia process at home and abroad and the research status of syngas compressor are summarized. (2) the problems in the process of operation of syngas compressor are summarized by causal analysis method, and these problems are divided into three types: process problems, equipment problems and monitoring problems. (3) aiming at the problem that the syngas compressor can not adapt to the high load operation, the process route is adjusted, and the inlet pressure, the synthesis tower and the high and high pressure turbine are adjusted accordingly. (4) the equipment problems of syngas compressor, such as medium pressure steam balance, surface cooling vacuum system, coupling joint fracture, coupling failure and so on, are deeply analyzed and studied, and the corresponding improvement measures are put forward. (5) to upgrade the condition monitoring system of syngas compressor unit and the integrated control and interlock protection system (ITCC) of large unit, and to update the diagnosis system and speed regulation system.
【学位授予单位】：湖南大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ113.251

【参考文献】