给水旁路调节下高压加热器的瞬态应力分析
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王建华,范佩佩,石峰,种道彤
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Transient Stress Analysis of High Pressure Heater During Feedwater Bypass Regulations
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Jianhua WANG,Peipei FAN,Feng SHI,Daotong CHONG
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| 表2 高压加热器材料物性参数 |
| Tab. 2 Physical properties of materials for high pressure heating equipment |
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| 参数 | 材料部位 | | 管板本体 | 半球形水室 | 换热管 | 壳程筒体 | 蒸汽入口 | 疏水出口 | 给水进出口 | | 材料牌号 | 20MnMoIV | SA516Gr70 | SA556GrC2 | SA516Gr70 | 15CrMn | 16MnR | 15NiCuMoNb5 | | 弹性模量/MPa | 194 800 | 194 000 | 188 700 | 194 000 | 197 000 | 193 000 | 192 000 | | 泊松比 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | | 密度/(kg·m-3) | 7 850 | 7 850 | 7 850 | 7 850 | 7 880 | 7 850 | 7 850 | | 导热系数/(W·m-1·℃-1) | 37.14 | 42.17 | 51.52 | 42.17 | 43.5 | 36.6 | 44.8 | | 比热/(J·kg-1·℃-1) | 460 | 460 | 460 | 460 | 460 | 460 | 460 | | 线膨胀系数/(10-6℃-1) | 12.6 | 13.2 | 13.2 | 13.2 | 13.7 | 13.5 | 13.4 |
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