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9H级燃机水汽系统化学控制和监测设计与优化

Design and Optimization of Chemical Control and Monitoring System for Class 9H Unit

    摘要
  • 摘要:
      目的  国内燃气蒸汽联合循环机组电厂建设已呈现井喷状态，其中9H级机组的建设近年来更是日益增加，有必要对这些机组水汽系统化学控制和监测设计与优化进行研究。
      方法  以某9H级联合循环电厂为例，根据机组水汽质量控制标准和化学监督技术导则的要求，对水汽系统化学控制和监测设计与优化进行研究。
      结果  通过选择高严密性的凝汽器、可靠的凝结水精处理和锅炉补给水处理工艺，采用氧化性全挥发给水处理AVT(O)和炉水磷酸盐处理，水汽取样系统配置完善的在线监测仪表，可保证机组安全、可靠和经济运行。
      结论  旨在为将来9H级燃气蒸汽联合循环机组水汽系统化学控制和监测设计提供可借鉴的优化方案。

     

    Abstract: Introduction The construction of combined cycle unit power plants has been in a blowout state, among which the construction of class 9H unit has been increasing in recent years. It is necessary to study the design and optimization of chemical control and monitoring system.
      Method  Taking a class 9H combined cycle power plant as an example, the design and optimization of chemical control and monitoring system were studied according to water and steam quality criterion and guideline of chemical supervision.
      Result  Through the selection of high tightness condenser, reliable condensate polishing and boiler make-up water treatment process, feed water adopts oxidizing total volatilization treatment AVT(O), boiler water adopts phosphate treatment, the sampling system sets up with perfect on-line monitoring instruments, can ensure the safety, reliability and economic operation of the unit.
      Conclusion  This paper aims to provide an optimization scheme for the design of chemical control and monitoring system of class 9H combined cycle unit in the futur.

     

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