220MW机组低压加热器疏水不畅分析及改造  

Analysis and Modification of Drain in Block for LP Heater in 220MW Units

作　　者：廖军林[1] 党小建[1] 

机构地区：[1]西安热工研究院有限公司,西安市710043

出　　处：《电力建设》2012年第11期46-48,共3页Electric Power Construction

摘　　要：针对越南某电厂220 MW机组在启动调试阶段3号低压加热器疏水不畅的问题进行分析。在所采集实时运行数据的基础上,结合原设计参数及现场情况,通过对2、3号低压加热器疏水系统进行改造及对冷渣器冷却水量进行调整,消除了3号低压加热器疏水不畅问题。就冷渣器冷却水回水温度对3号低压加热器疏水的影响提出了解决办法。This paper analyzed the reason of drain in block in No. 3 low pressure （LP） heater in 220 MW units during the startup and debugging stage. Based on the real-time data, the original design parameters and the site situation, the drainage systems in No. 2, No. 3 LP heaters were modified, and the cooling water of slag cooler was adjusted, in order to solve the drain in block in No. 3 LP heater. Finally, this paper suggested the solution for the influence of cooling water＇s backwater temperature in slag cooler on the No. 3 LP heater＇s drain.

关 键 词：火电厂 低压加热器 疏水 改造 

分 类 号：TK284.1[动力工程及工程热物理—动力机械及工程]