高压加热器运行方式对机组热经济性的影响  

Influence of High Pressure Heater Operation Mode on the Unit Heat Economy

作　　者：黄伟岗[1] 

机构地区：[1]神华神东电力有限责任公司新疆米东热电厂,乌鲁木齐831400

出　　处：《能源研究与管理》2013年第1期99-103,共5页Energy Research and Management

摘　　要：高压加热器的运行对机组的热经济性具有重要影响。以300MW凝汽式机组的热力系统为例,结合高加的端差、抽汽压力损失和散热损失3个方面,得出了高加运行与机组热经济性的具体关系和影响机组热经济性的强度系数,并绘制出了强度系数、得出煤耗率与机组负荷的关系曲线。得到了机组的运行中需要重点监测的参数和系统的改造方案,为机组的最优运行和改造工作提供了理论基础。The operation of the high pressure heater has important influence to unit efficiency. With 300 MW steam turbine thermal system as an example, combined with the high pressure heater end difference, extraction steam pressure loss and radiation loss, concluded the relationship between unit thermal efficiency and the operation of high pressure heater. The intensity coefficients of unit efficiency were calculated, the intensity coefficients was drawn out, and the curve between coal consumption rate and unit load was concluded. Get the important monitoring parameters of unit operation and the retrofit scheme of system. Theoretical foundation was provided for unit optimal operation and modification work.

关 键 词：端差 抽汽压损 散热损失 强度系数 热经济性 

分 类 号：TK621.3[动力工程及工程热物理—生物能]