CAJ | 학술논문

以一台U形管式a型换热器在进行壳程水压试验时管板与壳体法兰凹面间缠绕垫片被压出泄漏为事例，针对选择低公称压力等级的缠绕垫片用在高设计压力的凹凸面法兰接头密封的影响因素，从垫片最小宽度、法兰凹凸密封面尺寸偏差、垫片与法兰装配以及缠绕垫片特性等方面进行了分析，提出了在设计计算法兰时应考虑垫片最小宽度的合理确定并修订完善相关标准的建议。
이일태U형관식a형환열기재진행각정수압시험시관판여각체법란요면간전요점편피압출설루위사례，침대선택저공칭압력등급적전요점편용재고설계압력적요철면법란접두밀봉적영향인소，종점편최소관도、법란요철밀봉면척촌편차、점편여법란장배이급전요점편특성등방면진행료분석，제출료재설계계산법란시응고필점편최소관도적합리학정병수정완선상관표준적건의。
With the example of the leakage of a u-shape tube type heat exchanger during hydrotest ,which caused by the pinding-out of winding gasket between tubsheet and the concave side of shell lfange,this paper discusses the gasket mininum width,dimesional deviation of male-female seal face,lfange assembly and thd characteristiscs of winding gasket. The author suggest that minimum width of gasket should be comifrmed reasonably, and related standards should be amended.