近海F级燃机电站循环水系统的选择与优化

Selection And Optimization On Circulating Water System In Offshore F-class Gas Turbine Power Plant

近海F级燃机电站采用直流供水系统还是循环供水系统,难以通过定性方法进行确定。以某近海F级燃机电站为例,对采用海水直流供水系统与采用机械通风冷却塔的循环供水方案进行了技术经济对比。结果表明海水直流供水方案具有机组运行受天气影响小、凝汽器背压低、发电效率高、厂区噪音小、淡水资源消耗少的优点,可以作为本工程循环冷却供水推荐方案。

It is difficult to determine whether the offshore F-class gas turbine power plant adopts Once-through cooling water system or circulating cooling water system by qualitative method.Taking an offshore F-class gas turbine power plant as an example,the technical and economic comparison is made between the Once-through cooling water system and circulating cooling water system with mechanical ventilation cooling tower.The results show that seawater oncethrough cooling water system has the advantages of small weather influence,low condenser back pressure,high power generation efficiency,low noise in the plant area,and less consumption of fresh water resources,and can be used as the recommended solution for circulating cooling water supply of this project.