煤电升级改造背景下烟气余热利用节能效益对比评估
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王华霆, 陈衡, 徐钢, 安吉振
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Comparative Evaluation of Energy-Saving Benefits of Flue Gas Waste Heat Utilization Under the Background of Coal Power Upgrading
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Huating WANG, Heng CHEN, Gang XU, Jizhen AN
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表2 案例机组THA工况模型检验
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Tab. 2 Condition model test of case unit THA
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| 参数 | THA | 模型 | 误差 |
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| 主汽温度/℃ | 538 | 538 | 0.00 | | 主汽压力/MPa | 16.7 | 16.7 | 0.00 | | 主汽流量/(t/h) | 1 872.5 | 1 872.5 | 0.00 | | 再热蒸汽流量/(t/h) | 1 569.6 | 1 569.6 | 0.00 | | 小汽机进汽流量/(t/h) | 65.201 | 65.62 | -0.419 | | 一抽压力/MPa | 6.108 | 6.108 | 0.00 | | 二抽压力/MPa | 3.692 | 3.725 | -0.033 | | 三抽压力/MPa | 1.668 | 1.668 | 0.00 | | 四抽压力/MPa | 0.766 | 0.765 | 0.001 | | 五抽压力/MPa | 0.315 | 0.315 | 0.00 | | 六抽压力/MPa | 0.124 | 0.124 | 0.00 | | 七抽压力/MPa | 0.055 | 0.055 | 0.00 | | 八抽压力/MPa | 0.019 | 0.019 | 0.00 | | 一抽流量/(t/h) | 141.587 | 140.042 | 1.545 | | 二抽流量/(t/h) | 153.056 | 155.377 | -2.321 | | 三抽流量/(t/h) | 76.307 | 76.294 | 0.013 | | 四抽流量/(t/h) | 77.183 | 78.984 | -1.801 | | 五抽流量/(t/h) | 70.600 | 70.509 | 0.091 | | 六抽流量/(t/h) | 51.171 | 51.453 | -0.282 | | 七抽流量/(t/h) | 56.902 | 56.025 | 0.877 | | 八抽流量/(t/h) | 55.803 | 57.341 | -1.538 | | 排汽压力/MPa | 0.004 | 0.004 | 0.00 | | 发电功率/MW | 630 | 630.102 | -0.102 | | 热耗/[kJ/(kW⋅h)] | 7 775 | 7 767.48 | 7.52 |
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