黑龙江电力
黑龍江電力
흑룡강전력
Heilongjiang Electric Power
2015年
5期
433-435,440
,共4页
350WM级%抽水蓄能机组%可倾瓦导轴承%流体动力润滑
350WM級%抽水蓄能機組%可傾瓦導軸承%流體動力潤滑
350WM급%추수축능궤조%가경와도축승%류체동력윤활
350 WM%pumped-storage unit%tilting pad guide bearing%hydrodynamic lubrication
为了解决大型抽水蓄能机组可倾瓦导轴承性能计算的问题,笔者根据流体润滑理论,建立了大型可倾瓦导轴承的流体动力润滑数学模型,设计了计算程序,并以此程序对某350 MW级抽水蓄能机组的导轴承润滑性能进行了计算分析和研究.其结果表明,大型可倾瓦导轴承的流体动力润滑计算程序运行稳定可靠,导轴承的动力润滑性能会受到轴承负荷、机组转速、油槽进油温度等因素的影响,最高油膜温度、最小油膜厚度是制约轴承运行工况参数变化范围的关键因素.
為瞭解決大型抽水蓄能機組可傾瓦導軸承性能計算的問題,筆者根據流體潤滑理論,建立瞭大型可傾瓦導軸承的流體動力潤滑數學模型,設計瞭計算程序,併以此程序對某350 MW級抽水蓄能機組的導軸承潤滑性能進行瞭計算分析和研究.其結果錶明,大型可傾瓦導軸承的流體動力潤滑計算程序運行穩定可靠,導軸承的動力潤滑性能會受到軸承負荷、機組轉速、油槽進油溫度等因素的影響,最高油膜溫度、最小油膜厚度是製約軸承運行工況參數變化範圍的關鍵因素.
위료해결대형추수축능궤조가경와도축승성능계산적문제,필자근거류체윤활이론,건립료대형가경와도축승적류체동력윤활수학모형,설계료계산정서,병이차정서대모350 MW급추수축능궤조적도축승윤활성능진행료계산분석화연구.기결과표명,대형가경와도축승적류체동력윤활계산정서운행은정가고,도축승적동력윤활성능회수도축승부하、궤조전속、유조진유온도등인소적영향,최고유막온도、최소유막후도시제약축승운행공황삼수변화범위적관건인소.
In order to solve the calculation problem of the tilting pad guide bearing for large pumped-storage u-nits, according to hydro lubricating theory, the author established the hydrodynamic lubricating mathematical model of the tilting pad guide bearing and analyzed and studies the hydrodynamic lubrication of a 350 MW pumped-stor-age unit by the designed calculation program. The result shows that the calculation program operates stably and reli-ably. Besides, the lubricating character of guide bearing is affected by factors including bearing load, unit speed and inlet oil temperature of oil tank. The maximum oil film temperature and the minimum oil film thickness become the critical factor restricting the variation range of operating parameters.
