330MW锅炉热力计算G1020 1858YM23锅炉文档格式.docx

1、53灰开始变形温度DT11301120灰软化温度ST11601150灰熔化温度FT12102、环境条件环境温度tAA20平均气压PhPa1016.7海拔标高m4.5第 3 页二、炉 膛 结 构 数 据炉膛宽度14.048炉膛深度12.468上层煤粉燃烧器中心至屏底距离18.5炉膛容积（按冷灰斗一半考虑）m37754辐射受热面（到分隔屏底）m22160辐射受热面（到后屏入口）3413辐射受热面（到炉膛出口）4514第 4页三、热 力 数 据单位MCRTRLTHA75%40%THA（滑压）高 加全 切校核煤主蒸汽流量t/h1020969919665362845主蒸汽出口压力MPa.g18.5818

2、.4918.4118.057.3718.29主蒸汽出口温度C543给水温度258.8255.8253.0235.3205.0185.9给水压力20.3520.1319.9118.988.1219.61再热蒸汽流量923.21877.5836.01610.46338.85840.98再热蒸汽出口压力4.1293.9203.7382.7181.4743.844再热蒸汽出口温度再热蒸汽进口压力4.3254.1063.9162.8471.5464.023再热蒸汽进口温度336.27330.9326.37299.85337334.24减温水喷水压力21.3821.0920.8019.568.45减温水喷

3、水温度187.46185.11183.31170.6148.38185.87过热器一级喷水量8.914.539.543.74.6第 5页过热器二级喷水量4.48.219.64.021.12再热器喷水量总燃煤量129.5124.2118.790.251.3121.3136.8总风量（到风箱）1191.81143.71093.9922.3469.91116.81199.6炉膛漏风62.760.257.648.524.758.863.1总风量1254.51203.91151.5970.8494.61175.61262.7下炉膛出口烟温1310130513031271109612851307炉膛出口烟

4、温10101008100796680010001005煤粉喷嘴投运层数层43顶层喷嘴No.5底层喷嘴No.1喷嘴摆动角度度-526-25-19炉膛截面热负荷103KW/m24.6374.4474.2503.2231.8264.3434.625炉膛容积热负荷KW/m3104.74100.4696.0172.8141.2498.11104.47干烟气热损失4.604.554.504.382.823.944.39第 6页燃料中的水分热损失1.561.541.521.552.03燃烧中氢的热损失3.583.573.543.463.523.63空气中水分热损失0.080.070.05未燃尽碳热损失0.8

5、1.01.4辐射热损失0.190.200.260.45不可测量热损失0.35总热损失11.1611.1111.0511.1410.0510.4311.46效率（按高位发热值）88.8488.8988.9588.8689.9589.5788.54效率（按低位发热值）93.4593.5093.5693.4794.6094.2193.65过量空气系数1.251.39第 7页四、磨 煤 机 性 能 计 算磨煤机型号HP863煤粉细度（R90）19磨煤机投运台数台总的磨煤机出口风量（不含煤粉、水分）281.8277.9274.1206.4131.2276.1295.1出口混合物温度7580磨煤机出口煤粉

6、水份5.5磨煤机进口风温242238234235219236293第 8页五、各级受热面计算特性1烟气出口温度（）过热器分隔屏113611271122106390111091131过热器后屏再热器前屏921911903852701898918后水冷壁吊挂管910900891841689887907末级再热器837827820776646817835水冷壁对流管束819810801758627末级过热器742733726692593725740过热器对流管束718684584717732立式低温过热器688681674645550676687转向室吊挂管673667638541668680转向室

7、666659652623522654水平低温过热器461458455444374省煤器3633593553382773272工质出口温度（）墙式辐射再热器395392390377415394450448449454436451第 9页510508512529532521过热器二级减温器505503520501488487486507489过热器一级减温器4124094084033654104134324164334014023964172892872852782413、烟气平均速度（m/s）7.97.57.25.72.67.38.58.17.76.22.77.88.610.510.08.03.

8、610.111.111.310.710.23.710.411.4过热器排管9.99.59.79.69.86.73.18.39.0第 10页六、回 转 式 空 气 预 热 器型式三分仓回转式空预器型号28-VI（T）-1983-SMR二次风机温升预热器二次风进口温度2342.2一次风机温升6预热器一次风进口温度出口一次风温度307.2305.6304.4292.2250.6276.7300.6出口二次风温度326.1323.9321.1306.1257.2294.4324.4排烟温度（修正前）132.8131.7130.6118.9102.8119.4127.8（修正后）128.3126.712

9、5.6113.395115123.3进口一次风量257.154251.716245.959207.122171.894270.29323.332第 11页进口二次风量915.361870.989825.174720.767344.133847.983909.499进口烟气量1367.9931312.5851255.5051048.914539.8141283.9891381.708出口一次风量195.465190.027184.724146.34112.472209.054260.736旁通风量60.5162.50664.41141.2777.00441.8227.838出口二次风量909.011864.639818.824714.417338.69841.633903.602出口烟气量1436.0331380.6251323.0911116.046604.6781351.5751450.201空气到烟气总漏风量68.0467.58667.13264.86468.493一次风到二次风侧的漏风量8.1657.7117.2588.618二次风到烟气侧的漏风量14.51514.06212.701一次风到烟气侧的漏风量53.52453.07152.16453.978