电力勘测设计
電力勘測設計
전력감측설계
ELECTRIC POWER SURVEY
2014年
1期
31-34
,共4页
内压直管%最小壁厚%弯管
內壓直管%最小壁厚%彎管
내압직관%최소벽후%만관
straight pipe under internal pressure%the minimum wall thickness%elbow
本文介绍了内压直管最小壁厚计算公式及适用条件，分析了工程设计中内压直管最小壁厚计算公式，指出了GB 50764、DL/T 5054、DL/T 5366标准中内压直管最小壁厚计算公式与ASME B31.1不同处；说明超超临界机组仪表导管壁厚计算依据应是ASME B31.1，且仪表导管应选用接近的较厚壁厚。
本文介紹瞭內壓直管最小壁厚計算公式及適用條件，分析瞭工程設計中內壓直管最小壁厚計算公式，指齣瞭GB 50764、DL/T 5054、DL/T 5366標準中內壓直管最小壁厚計算公式與ASME B31.1不同處；說明超超臨界機組儀錶導管壁厚計算依據應是ASME B31.1，且儀錶導管應選用接近的較厚壁厚。
본문개소료내압직관최소벽후계산공식급괄용조건，분석료공정설계중내압직관최소벽후계산공식，지출료GB 50764、DL/T 5054、DL/T 5366표준중내압직관최소벽후계산공식여ASME B31.1불동처；설명초초림계궤조의표도관벽후계산의거응시ASME B31.1，차의표도관응선용접근적교후벽후。
This paper introduces the minimum wall thickness calculation equation of the straight pipe under internal pressure and its application condition, analyses the minimum wall thickness calculation equation of the straight pipe under internal pressure for the project design, and points out the difference of the minimum wall thickness equations between GB 50764, DL/T 5054, DL/T 5366 and ASME B31.1;Calculation of Ultra-supercritical unit impulse pipe wall thickness should be based on the ASME B31.1, and the next heavier commercial wall thickness of the impulse pipe should be selected.
