蓄热器开孔补强分析.pdfVIP

蓄热器开孔补强分析 1 2 胡长庆 陈 凌 ∗ (1. 中冶赛迪工程技术股份有限公司动力研究室，重庆 400013 ； 2. 中冶赛迪工程技术股份有限公司炼铁研究室，重庆 400013) 摘 要 蓄热器作为一种典型的压力容器，广泛应用于电力、冶金等行业。为了满足使用需要，蓄热器上通常需要 开孔接管，造成罐体的不连续和局部应力集中。本文通过 Ansys11.0 ，对蓄热器的开孔补强进行了深入分析，指出 了等面积补强法的不足，并详细比较了不同补强宽度下的补强效果。计算发现，接管在罐体内适当延长，对降低大 开孔处的高应力，效果较为明显。 关键词 蓄热器 接管 等面积补强 压力容器 Analysis of Intensity Reinforcing for Thermal Accumulators Hu Changqing 1 Chen Ling 2 (1. Power research department of CISDI Engineering Co., Ltd., MCC, Chongqing, 400013; 2. Iron-making research department of CISDI Engineering Co.,Ltd., MCC, Chongqing, 400013 ) Abstract As the typical pressure vessel, thermal accumulators have been widely used in the electrical power and metallurgical industries. In general using condition, the connecting pipes are often needed in thermal accumulators, which results in the discontinuity and stress concentration of the tanks. In this paper, the stress analysis for the thermal accumulator has been made by the finite element analysis software Ansys11.0. Based on the detailed analysis, the equivalence-area reinforcing method for the thermal accumulator has been proved too wasted. According to the above presentation, this paper compares several reinforcing widths with the corresponding effects and the preferable widths are suggested. The calculation also clues on, being propriety extended with the take-over inside the thermal accumulator, the attenuation of high stress area is obvious. Key words thermal accumulator, take-over, equivalence-area reinforcing, press-vessel 0 引言 蓄热器作为一种典型的压力容器，广泛应用于电力、冶金等行业。为了满足使用需要，蓄热器上通常需 要开孔接管，这样就造成罐体的不连续，局部存在应力集中。 工程中，对于蓄热器的大