化工设备与管道
化工設備與管道
화공설비여관도
PROCESS EQUIPMENT DESIGN
2015年
3期
1-6
,共6页
薛明德%李世玉%朱国栋%吴坚%徐锋%黄克智
薛明德%李世玉%硃國棟%吳堅%徐鋒%黃剋智
설명덕%리세옥%주국동%오견%서봉%황극지
浮头式换热器%管板%设计规范%应力分析
浮頭式換熱器%管闆%設計規範%應力分析
부두식환열기%관판%설계규범%응력분석
floating head Heat exchanger%tubesheet%design code%stress analysis
阐述了国家标准GB 151中浮头式换热器设计方法的理论依据。在此基础上，进一步给出了如何应用GB 151中浮头式换热器对应于最小管板设计厚度的公式与曲线，计算实际管板厚度下的管板应力和换热管应力的方法。通过一个实际算例，说明当管板的实际厚度与其最小设计厚度相差较多时，换热管中的应力可以大大降低。
闡述瞭國傢標準GB 151中浮頭式換熱器設計方法的理論依據。在此基礎上，進一步給齣瞭如何應用GB 151中浮頭式換熱器對應于最小管闆設計厚度的公式與麯線，計算實際管闆厚度下的管闆應力和換熱管應力的方法。通過一箇實際算例，說明噹管闆的實際厚度與其最小設計厚度相差較多時，換熱管中的應力可以大大降低。
천술료국가표준GB 151중부두식환열기설계방법적이론의거。재차기출상，진일보급출료여하응용GB 151중부두식환열기대응우최소관판설계후도적공식여곡선，계산실제관판후도하적관판응력화환열관응력적방법。통과일개실제산례，설명당관판적실제후도여기최소설계후도상차교다시，환열관중적응력가이대대강저。
In this paper, the theory for the method used in national standard GB 151 for designing floating head heat exchanger was expounded. Then, on this theoretical basis, the methods of applying the formula and curves in GB 151 for obtaining the minimum design thickness of tubesheet in floating head heat exchanger, and calculating the stresses in tubesheet with actual thickness of tubesheet and the stress in heat transfer tube were provided. One practical example was used in the paper to demonstrated that when the actual thickness of tubesheet is largely different from the minimum design thickness of tubesheet, the stress in tube will have a great reduction.
