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大容量机组采用小汽轮机作动力拖动给水泵的机组,使用复合凝结水真空除氧热力系统可使小汽轮机乏汽加热除凝结水,小汽轮机效率可达100％,而且便于汇集疏水、降低疏水逐级自流至凝汽器的热损失。复合凝结水真空除氧器设置在凝结器内,除氧效果高于压力式除氧器,汽轮机变工况运行时,调整更方便。加热器集中在同一平台,降低了材料的消耗,减少了设备及基建的投资。将变频凝结泵与汽动给水泵联合使用,降低了厂用电,提高了机组效率。
Large-capacity units using small turbines as the power drag pump unit, the use of composite condensate vacuum oxygen system can make steam turbine steam condensate less steam heating, small steam turbine efficiency up to 100%, and to facilitate the convergence of hydrophobic, reduce hydrophobic Progressively self-flowing to the condenser heat loss. Compound decontamination vacuum deaerator set in the condenser, the deaerator effect is higher than the pressure deaerator, steam turbine working conditions, adjust more convenient. Heaters are concentrated on the same platform, reducing material consumption and reducing equipment and infrastructure investment. The frequency conversion coagulation pump and steam feed pump used in conjunction, reducing the plant power consumption and improve the unit efficiency.