压力容器
壓力容器
압력용기
2014年
11期
32-38
,共7页
低温液体罐车外壳%加强圈%临界压力%常规设计
低溫液體罐車外殼%加彊圈%臨界壓力%常規設計
저온액체관차외각%가강권%림계압력%상규설계
outer jacket of road tankers for cryogenic liquid%reinforcement ring%critical pressure%design by rules
低温液体罐车的外壳（也即外筒体）为真空容器，外设多个加强圈以增强其抗失稳能力，但为了提高装载量并且不突破罐车的宽度限制，往往对加强圈两侧进行削边处理。由于削边后结构不规则，无法再按照 GB 150—2011《压力容器》进行失稳临界压力或许用外压计算。为此，提出了加强圈刚度削弱系数的概念，并在有限元分析的基础上，拟合出了加强圈刚度削弱系数表达式。有了该系数，就可以在按照 GB 150—2011进行常规设计的基础上，解决低温液体罐车外壳加强圈削边后的失稳临界压力计算问题。
低溫液體罐車的外殼（也即外筒體）為真空容器，外設多箇加彊圈以增彊其抗失穩能力，但為瞭提高裝載量併且不突破罐車的寬度限製，往往對加彊圈兩側進行削邊處理。由于削邊後結構不規則，無法再按照 GB 150—2011《壓力容器》進行失穩臨界壓力或許用外壓計算。為此，提齣瞭加彊圈剛度削弱繫數的概唸，併在有限元分析的基礎上，擬閤齣瞭加彊圈剛度削弱繫數錶達式。有瞭該繫數，就可以在按照 GB 150—2011進行常規設計的基礎上，解決低溫液體罐車外殼加彊圈削邊後的失穩臨界壓力計算問題。
저온액체관차적외각（야즉외통체）위진공용기，외설다개가강권이증강기항실은능력，단위료제고장재량병차불돌파관차적관도한제，왕왕대가강권량측진행삭변처리。유우삭변후결구불규칙，무법재안조 GB 150—2011《압력용기》진행실은림계압력혹허용외압계산。위차，제출료가강권강도삭약계수적개념，병재유한원분석적기출상，의합출료가강권강도삭약계수표체식。유료해계수，취가이재안조 GB 150—2011진행상규설계적기출상，해결저온액체관차외각가강권삭변후적실은림계압력계산문제。
The outer jacket of road tankers for cryogenic liquid is a vacuum pressure vessel.Multiple rein-forcement rings are required to enhance its capability of anti -instability.However,in order to increase the geometrical volume of the inner vessel without exceeding the width limitation on the vehicle,the rein-forcement rings are usually cut -off on both sides of the jacket.Thus,the reinforcement rings are no lon-ger regular in structure and the code of GB 150—2011 can not be directly applied to calculate the critical pressure or the allowable outside pressure.A so -called stiffness weakening coefficient of the reinforce-ment ring is defined and expressed based on the numerical calculations of the critical pressure of the outer jacket with the reinforcement rings partly cut -off.With the stiffness weakening coefficient,the stability of the outer jacket with partly cut -off reinforcement rings may be calculated according to GB 150—2011, and thus,the design of the road tankers for cryogenic liquid can be greatly simplified.
