LNG工厂冷剂压缩机运行方案优化经验
Experience for Optimization of Refrigerant Compressor Operation in LNG Plant
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- 引用格式:
-
罗,斐.LNG工厂冷剂压缩机运行方案优化经验[J].天然气与石油,2016,34(4):0.doi:
Luo Fei.Experience for Optimization of Refrigerant Compressor Operation in LNG Plant[J].Natural Gas and Oil,2016,34(4):0.doi:
- DOI:
- 作者:
- 罗 斐
Luo Fei
- 作者单位:
- 昆仑能源湖北黄冈液化天然气有限公司
Kunlun Huanggang Hubei LNG Ltd.,
- 关键词:
- LNG;压缩机;振动;开车;情况分析
LNG; Compressor; Vibration; Start-up; Case analysis
- 摘要:
- 为了研究压缩机组开车失败的原因及其影响因素,结合某厂3台压缩机组多次现场开车记录,对开车方案、电力、工艺、设备、仪表等各方面现场情况进行综合对比和节点分析。在问题汇总的基础上提出建议,取得了压缩机一次开车成功的依据。研究得出，影响压缩机组开车失败的原因众多,其中振动控制是关键。在找到温度与振动平衡点后,合理控制温度让机体温度下降、出口温度上升,振动下降,形成良性循环。最后把握好升速时机,平稳操作,使启机成功。
In order to study the causes of the LNG refrigerant compressor start-up failure and its influencing factors, a node analysis has been done based on several on-site start-up records of three compressors and comprehensive comparison of start-up scheme, power, process, equipment, instrumentation and other aspects. Suggestions have been put forward based on the summary to obtain the basis for successful initial operation. The results showed that vibration control is the key among many influences on compressor start-up failure. The optimized scheme is to find an equilibrium point between temperature and vibration, and properly reduce the compressor body temperature. When the outlet temperature rises, the vibration can be declined, forming a virtuous circle system. Finally, compressor can be started successfully by catching the right time for speed rise through smooth operation.
