神华科技
神華科技
신화과기
NORTHWEST COAL
2014年
4期
56-58
,共3页
赵利军%卓钢%杨明喜%任伟
趙利軍%卓鋼%楊明喜%任偉
조리군%탁강%양명희%임위
汽轮发电机组%自激振动%轴承安装%阀序优化%动平衡
汽輪髮電機組%自激振動%軸承安裝%閥序優化%動平衡
기륜발전궤조%자격진동%축승안장%벌서우화%동평형
Turbine Generator Unit%Vibration%Bearing%Valve Ordinal Optimization%Dynamic Balance
神华亿利能源有限责任公司电厂#1机组切换顺序阀时，高中压转子承受了较大的蒸汽托起力，一方面减轻了轴承的承载力，使得轴承稳定性下降；另一方面使得转子生产较大偏心，引起径向通流间隙的不均匀，激发了较大的汽流激振力，最终引发了高中压转子自激振动。现场通过轴承安装调整、阀序优化，以及现场动平衡有效消除了该振动故障。
神華億利能源有限責任公司電廠#1機組切換順序閥時，高中壓轉子承受瞭較大的蒸汽託起力，一方麵減輕瞭軸承的承載力，使得軸承穩定性下降；另一方麵使得轉子生產較大偏心，引起徑嚮通流間隙的不均勻，激髮瞭較大的汽流激振力，最終引髮瞭高中壓轉子自激振動。現場通過軸承安裝調整、閥序優化，以及現場動平衡有效消除瞭該振動故障。
신화억리능원유한책임공사전엄#1궤조절환순서벌시，고중압전자승수료교대적증기탁기력，일방면감경료축승적승재력，사득축승은정성하강；령일방면사득전자생산교대편심，인기경향통류간극적불균균，격발료교대적기류격진력，최종인발료고중압전자자격진동。현장통과축승안장조정、벌서우화，이급현장동평형유효소제료해진동고장。
Unit 1, Yili Shenhua Energy Co. Ltd. plant switching sequence valve, high pressure rotor bearing a large steam up force, it can reduce the capacity of bearing, the bearing stability decreased; on the other hand, the production of large rotor ec-centric, nonuniform induced radial clearance, stimulate large steam exciting force, eventually caused the high pressure rotor self-excited vibration. The scene through the bearing installation and adjustment, valve sequence optimization, and field dynamic bal-ance effectively eliminates the vibration fault.
