给水加热器布置形式研究

Discussion on the Arrangement of Feedwater Heater

电站汽轮机回热系统中,高、低压加热器布置形式有多种组合,高、低压加热器的给水端差和疏水端差大小的设置,直接影响机组的高效率和运行的安全性。文中提出不同的高、低压加热器布置适应于不同传热区段组合,探讨了高、低压加热器传热区段布置时的局限性。

There are many kinds of the arrangements for HP and LP heaters in the extraction steam system of power station turbine. The efficiency and operational sefety of power unit will directly be affected because of the termind temperature difference and settings of drain subcooler approach. Different arrangements of HP ＆ LP heaters applied to different heat transferred zones have been put forward and the limitation of different arrangements for the heat transferred zones has been discussed in the paper.