| 电驱离心式压缩机组冷态对中的影响因素 |
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| 引用本文： | 蒲斌.电驱离心式压缩机组冷态对中的影响因素[J].油气储运,2021(3):319-325,351. |
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| 作者姓名： | 蒲斌 |
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| 作者单位： | 国家管网西部管道新疆输油气分公司 |
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| 摘 要： | 电驱离心式压缩机组联轴器处的对中会影响机组的运行稳定性,因此需要在现场进行校验,并修正压缩机生产厂家的冷态对中数据,以确保冷态对中的准确性,提升对中质量。根据离心式压缩机组的结构及运行特点,分析机组冷态与正常运行状态时的差异,得出冷态对中的影响因素,并提出了计算和修正冷态对中数据的公式。从热膨胀、轴上升高度、顶升高度、工具挠度4个方面分析其对离心式压缩机组冷态对中的影响。在计算材料热膨胀数值的过程中,发现其具有明显的线性关系,据此简化了热膨胀数值的计算方式。通过状态监测工具得出转子轴中心的上升高度,并对冷态对中过程中的转子顶升高度进行修正,最终得出修正的冷态对中数据,对指导压缩机组开展冷态对中具有一定借鉴意义。
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| 关 键 词： | 电驱压缩机组 冷态对中 热膨胀 轴中心 挠度 |
Influencing factors for cold alignment of motor-driven centrifugal compressor unit |
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| PU Bin.Influencing factors for cold alignment of motor-driven centrifugal compressor unit[J].Oil & Gas Storage and Transportation,2021(3):319-325,351. |
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| Authors: | PU Bin |
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| Institution: | (Xinjiang Oil&Gas Transportation Sub-Company,PipeChina West Pipeline Company) |
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| Abstract: | Coupling alignment of the motor-driven centrifugal compressor unit will affect the operation stability of the unit.Therefore,it is necessary to verify and correct the cold alignment data of the compressor manufacturer on site to ensure the accuracy of cold alignment,thus improving the quality of cold alignment of the unit.According to the structure and operation characteristics of centrifugal compressor unit,the differences of the unit in cold state and normal operation state were analyzed,the factors affecting the cold alignment were obtained,and the formula for calculating and correcting the cold alignment data was proposed.The effect of cold alignment was analyzed from the four aspects of material thermal expansion,rising height of shaft and deflection of alignment tool.In the calculation process of thermal expansion values,an obvious linear relationship was found,which simplified the numerical calculation of thermal expansion.The rising height of the rotor shaft center was obtained from the condition monitoring tool,the jacking height of rotor in the process of cold alignment was corrected,and the corrected cold alignment data was obtained finally,which is of reference significance to guide the cold alignment of compressor. |
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| Keywords: | motor-driven compressor unit cold alignment thermal expansion shaft center deflection |
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