压力容器
壓力容器
압력용기
Pressure Vessel Technology
2015年
9期
47-51
,共5页
稳压器波动管%热分层%温度分布
穩壓器波動管%熱分層%溫度分佈
은압기파동관%열분층%온도분포
pressurizer surge line%thermal stratification%temperature distribution
采用全尺寸三维非稳态流固单向耦合传热的 CFD 方法，对 AP1000抽真空启动升温工况稳压器波动管热分层现象进行了计算，得到波动管整体和不同截面热分层瞬态。结果显示，AP1000波动管布置设计有效地消除或削弱了热分层现象，指出第2个弯头前直管段上的焊缝将是疲劳监测的重要部位。
採用全呎吋三維非穩態流固單嚮耦閤傳熱的 CFD 方法，對 AP1000抽真空啟動升溫工況穩壓器波動管熱分層現象進行瞭計算，得到波動管整體和不同截麵熱分層瞬態。結果顯示，AP1000波動管佈置設計有效地消除或削弱瞭熱分層現象，指齣第2箇彎頭前直管段上的銲縫將是疲勞鑑測的重要部位。
채용전척촌삼유비은태류고단향우합전열적 CFD 방법，대 AP1000추진공계동승온공황은압기파동관열분층현상진행료계산，득도파동관정체화불동절면열분층순태。결과현시，AP1000파동관포치설계유효지소제혹삭약료열분층현상，지출제2개만두전직관단상적한봉장시피로감측적중요부위。
By using the full-size three-dimensional unsteady fluid-solid one way coupled heat transfer CFD method,the thermal stratification phenomenon of the surge line of AP1000 pressurizer was calculated dur-ing the vacuum start up condition.And the thermal stratification transient of the overall and different sec-tions of pressurizer surge line was obtained.The analysis results show the layout of AP1000 surge line ef-fectively eliminates or impair thermal stratification phenomenon.It is also pointed out that the weld seam at the straight pipe before the second elbow will be an important part of fatigue monitoring.
