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[align=center]引进型300MW机组高压加热器零水位调整与改进
[align=center]大坝发电厂(青铜峡 751607)陈祥 沈建龙
[align=center]表2:调整改造前、后试验数据汇总见表
[align=center]项 目
[align=center]单
[align=center]位
[align=center]240MW
[align=center]300MW
[align=center]改造后
[align=center]与设计差
[align=center]改造前
[align=center]变化量
[align=center]设计值
[align=center]#1
[align=center]高加
[align=center]上端差
[align=center]℃
[align=center]-3.365
[align=center]-2.093
[align=center]1.272
[align=center]-1.5
[align=center]-1.300
[align=center]-1.700
[align=center]-0.400
[align=center]-0.200
[align=center]下端差
[align=center]5.893
[align=center]5.201
[align=center]-0.692
[align=center]5.6
[align=center]6.992
[align=center]6.857
[align=center]-0.135
[align=center]1.257
[align=center]#2
[align=center]-1.411
[align=center]-1.105
[align=center]0.306
[align=center]0
[align=center]0.654
[align=center]0.494
[align=center]-0.160
[align=center]5.917
[align=center]5.741
[align=center]-0.176
[align=center]5.303
[align=center]4.972
[align=center]-0.331
[align=center]-0.628
[align=center]#3
[align=center]-2.103
[align=center]-1.445
[align=center]0.658
[align=center]0.602
[align=center]0.558
[align=center]-0.344
[align=center]18.926
[align=center]8.111
[align=center]-10.815
[align=center]21.245
[align=center]7.029
[align=center]1.429
[align=center]给水温度
[align=center]265.156
[align=center]267.677
[align=center]2.521
[align=center]278.8
[align=center]278.993
[align=center]281.772
[align=center]2.779
[align=center]2.972
[align=center]进汽压力
[align=center]MPa
[align=center]4.808
[align=center]4.821
[align=center]0.013
[align=center]6.16
[align=center]6.007
[align=center]6.144
[align=center]0.137
[align=center]-0.016
[align=center]进汽温度
[align=center]387.896
[align=center]388.207
[align=center]0.311
[align=center]388
[align=center]399.409
[align=center]402.051
[align=center]2.642
[align=center]14.051
[align=center]给水温升
[align=center]30.987
[align=center]31.165
[align=center]0.178
[align=center]32.7
[align=center]32.888
[align=center]33.364
[align=center]0.476
[align=center]0.644
[align=center]2.830
[align=center]2.890
[align=center]0.070
[align=center]3.73
[align=center]3.594
[align=center]3.614
[align=center]0.02
[align=center]-0.116
[align=center]320.786
[align=center]321.914
[align=center]1.128
[align=center]318
[align=center]330.757
[align=center]332.349
[align=center]1.592
[align=center]14.349
[align=center]37.018
[align=center]35.966
[align=center]-1.052
[align=center]41.9
[align=center]40.56
[align=center]39.21
[align=center]-1.350
[align=center]-2.69
[align=center]1.362
[align=center]1.341
[align=center]-0.021
[align=center]1.7
[align=center]1.735
[align=center]1.692
[align=center]-0.043
[align=center]-0.008
[align=center]435.873
[align=center]435.272
[align=center]-0.601
[align=center]437
[align=center]445.741
[align=center]444.798
[align=center]-0.943
[align=center]7.798
[align=center]30.875
[align=center]33.266
[align=center]2.391
[align=center]29.9
[align=center]30.187
[align=center]35.661
[align=center]5.474
[align=center]5.761
[align=center]
[align=center]0.135
[align=center]0.0092
[align=center]0.3112
[align=center]1.3096
[align=center]1964.4
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