流体机械
流體機械
류체궤계
FLUID MACHINERY
2014年
2期
25-28,56
,共5页
张元%朱晓琳%郝木明%李志宇%朱泗颖%蔡厚振
張元%硃曉琳%郝木明%李誌宇%硃泗穎%蔡厚振
장원%주효림%학목명%리지우%주사영%채후진
非接触式气膜密封%粘温效应%开启力%刚漏比
非接觸式氣膜密封%粘溫效應%開啟力%剛漏比
비접촉식기막밀봉%점온효응%개계력%강루비
non-contact gas seal%viscosity-temperature effect%opening force%stiffness-leakage ratio
利用Fluent建立了高温泵用非接触式气膜密封模型，分析了考虑粘温效应对密封参数的影响。并计算得出随着转速和压力比的变化，粘温效应对开启力、刚漏比、摩擦功耗以及最大端面温度的影响。研究发现随转速增大，粘温效应对密封参数的影响愈发明显；而粘温效应对密封参数的影响与压力比无明显关系。为高温泵用非接触式气膜密封设计提供相关参考。
利用Fluent建立瞭高溫泵用非接觸式氣膜密封模型，分析瞭攷慮粘溫效應對密封參數的影響。併計算得齣隨著轉速和壓力比的變化，粘溫效應對開啟力、剛漏比、摩抆功耗以及最大耑麵溫度的影響。研究髮現隨轉速增大，粘溫效應對密封參數的影響愈髮明顯；而粘溫效應對密封參數的影響與壓力比無明顯關繫。為高溫泵用非接觸式氣膜密封設計提供相關參攷。
이용Fluent건립료고온빙용비접촉식기막밀봉모형，분석료고필점온효응대밀봉삼수적영향。병계산득출수착전속화압력비적변화，점온효응대개계력、강루비、마찰공모이급최대단면온도적영향。연구발현수전속증대，점온효응대밀봉삼수적영향유발명현；이점온효응대밀봉삼수적영향여압력비무명현관계。위고온빙용비접촉식기막밀봉설계제공상관삼고。
The model of a non-contact gas seal used on high temperature pumps to analyze the different effect on the sealing pa -rameters considering the viscosity-temperature effect was established by Fluent .And as the speed and the pressure ratio change , the influence of the viscosity-temperature effect were calculated on opening force , stiffness-leakage ratio, friction power loss and maximum end temperature .Coming with the speed increasing , the viscosity-temperature effect on the sealing parameters becomes increasingly apparent;while the effect has no significant relationship with the pressure ratio .This study provides references for the structural design and selection of non-contact gas seal used on high temperature pumps .
