汽机节能课件

1、 1高压缸效率2中压缸效率3低压缸效率4主蒸汽压力5主蒸汽温度6再热蒸汽温度7再热蒸汽压损8最终给水温度9凝汽器压力10 再热器减温水流量11 锅炉吹灰蒸汽流量12 小汽轮机进汽流量13机组补水率14调节阀运行法是及开度15给水泵焓升16凝结水泵焓升17轴封漏汽量18加热器给水端差19加热器疏水端差20凝汽器端差21凝汽器过冷度22阀门内漏23设备散热损失242阀4阀影响的热耗比% 流量比%排汽绝对压力(KPa)1.70 3.30 4.90 5.40 6.80 8.40 10.20 11.90 13.50 15.20 17.20 18.60 vwo-0.84 -0.39 0.00 0.24 1

2、.26 2.91 4.59 6.03 7.45 8.96 10.58 11.66 100-1.10 -0.60 0.00 0.37 1.83 3.54 5.31 6.71 8.50 10.06 11.73 12.87 80-2.03 -1.35 0.00 0.76 2.58 4.48 6.63 8.58 10.27 11.94 13.72 14.89 60-3.74 -2.66 0.00 0.82 3.01 5.37 7.98 10.12 11.94 13.69 15.57 16.79 50-4.88 -3.13 0.00 0.88 3.39 5.97 8.80 11.05 12.92 14.

3、74 16.69 17.84 30-8.61 -4.18 0.00 1.26 4.42 7.46 10.34 12.60 14.82 16.94 19.26 20.30 图太复杂，将图还原成表格。日常计算均以75%负荷率时采用插值计算以基准项目项目参数变化量参数变化量影响煤耗影响煤耗(g/kwh(g/kwh) )设计值设计值8 8月实际月实际值值影响煤耗影响煤耗(g/kwh(g/kwh) )主汽压力主汽压力每每0.1MPa0.1MPa0.07530.075324.224.223.8723.870.250.25主汽温度主汽温度每每110.08170.0817566566564.81564.810

4、.10.1再热汽温再热汽温每每110.0730.073566566561.86561.860.30.3负荷每10MW0.410.41600522.973.16背压背压每每1KPa1KPa3.213.214.94.96.926.926.516.51给水温度给水温度每每110.050.05282282275.38275.380.3310.331补水率补水率每每1 10.980.981 10.650.65-0.343-0.343高压缸效率高压缸效率每每0.50.50.250.25中压缸效率中压缸效率每每0.50.50.170.17低压缸效率低压缸效率每每0.50.50.580.58治理阀门内漏治理阀

5、门内漏项目名项目名称称单单位位THA设计工设计工况况3VWO工况工况4VWO工况工况600MW590MW450MW300MW高压缸效率%87.3881.9783.0681.8681.9679.4778.96中压缸效率%93.1194.4993.9093.9694.1695.7399.52低压缸效率%89.5482.5884.8985.1784.7782.0674.64疏水位置热耗率增量折合煤耗率kJ/(kWh)g/(kWh)主蒸汽9.50.36再热蒸汽8.60.32高压缸排汽6.90.261段抽汽7.70.292段抽汽6.90.263段抽汽7.10.274段抽汽5.70.215段抽汽4.20.166段抽汽3.00.117段抽汽2.20.098段抽汽1.10.04疏水每泄漏疏水每泄漏1t/h1t