烟气焓值表
Enthalpy of exhaust gas components（Btu/lb）
Gas temperature°F H2O O2N2CO2SO2 -60.00177.7287.48100.2363.9750.94 -40.00186.0991.59104.9567.8853.78 -20.00194.5295.73109.6971.8356.66
0.00203.0199.91114.4675.8159.56
20.00211.56104.12119.2579.8462.49
40.00220.70108.36124.0683.8965.45
60.00228.83112.63128.8987.9968.43
80.00237.54116.93133.7492.1271.44
100.00246.29121.25138.6096.3074.48 120.00255.10125.60143.48100.5177.54 140.00263.94129.97148.37104.7580.63 160.00272.83134.37153.28109.0483.75 180.00281.77138.79158.20113.3686.89 200.00290.74143.23163.13117.7390.05 220.00299.75147.69168.08122.1293.24 240.00308.80152.17173.04126.5696.45 260.00317.89156.67178.01131.0399.69 280.00327.02161.18183.00135.54102.95 300.00336.19165.72188.00140.09106.24 320.00345.39170.28193.00144.67109.54 340.00354.63174.85198.03149.29112.87 360.00363.90179.44203.06153.54116.22 380.00373.21184.05208.10158.63119.60 400.00382.56188.68213.15163.35122.99 420.00391.94193.32218.22168.11126.41 440.00401.35197.98223.30172.90129.85 460.00410.80202.66228.38177.73133.31 480.00420.29207.35233.48182.58136.79 500.00429.81212.06238.59187.48140.29 520.00439.36216.78243.71192.40143.80 540.00448.94221.51248.84197.36147.34 560.00458.56226.27253.98202.35150.90 580.00468.22231.03259.13207.37154.48 600.00477.90235.81264.29212.42158.08 620.00487.62240.61269.46217.50161.69 640.00497.37245.42274.64222.61165.33 660.00507.16250.24279.83227.76168.98 680.00516.98255.08285.04232.93172.65 700.00526.83259.93290.25238.13176.33 720.00536.71264.79295.47243.36180.04 740.00546.63269.67300.70248.62183.76 760.00556.58274.56305.95253.91187.49 780.00566.56279.46311.20259.22191.24 800.00576.58284.38316.47264.56195.01 820.00586.62289.31321.74269.93198.80 840.00596.70294.25327.02275.33202.60 860.00606.82299.20332.32280.75206.41 880.00616.96304.16337.62286.20210.24 900.00627.14309.14342.94291.67214.08 920.00637.35314.13348.26297.16217.94 940.00647.59319.13353.60302.69221.81 960.00657.87324.14358.94308.23225.70 980.00668.18329.16364.30313.80229.59 1000.00678.52334.19369.67319.39233.51 1020.00680.89339.23375.04325.01237.43 1040.00699.29344.29380.43330.64241.37 1060.00709.73349.35385.83336.30245.31 1080.00720.20354.43391.23341.98249.27 1100.00730.70359.51396.65347.68253.24 1120.00741.24364.61402.08353.40257.23 1140.00751.80369.71407.52359.15261.22 1160.00762.40374.83412.97364.91265.22 1180.00773.04379.95418.43370.69269.24 1200.00783.70385.09423.90376.49273.26 1220.00794.40390.23429.38382.31277.30 1240.00805.12395.38434.87388.15281.34 1260.00815.89400.55440.37394.00285.39 1280.00826.68405.72445.88399.88289.46 1300.00837.51410.90451.40405.77293.53 1320.00848.37416.09456.94411.67297.60 1340.00859.26421.29462.48417.59301.69 1360.00870.18426.49468.04423.53305.78 1380.00881.14431.71473.60429.49309.89 1400.00892.13436.93479.18435.45314.00 1420.00903.15442.16484.76441.44318.11 1440.00914.20447.40490.36447.43322.23
1460.00925.29452.64495.97453.44326.36 1480.00936.41457.90501.58459.47330.50 1500.00947.56463.16507.21465.50334.64 1520.00958.74468.43512.85471.55338.78 1540.00969.96473.70518.50477.61342.93 1560.00981.21478.98524.16483.68347.09 1580.00992.49484.27529.84489.77351.25 1600.001003.81489.57535.52495.86355.41 1620.001015.15494.87541.21501.97359.58 1640.001026.53500.18546.92508.08363.75 1660.001037.95505.50552.63514.20367.92 1680.001049.39510.82558.36520.34372.10 1700.001060.87516.15564.10526.48376.28
烟气焓值计算
烟气焓值计算 t C CO2t C N2t C H2O t C CO2t C N2t C H2O t C O2t t烟气焓值CO2N2H2O O2 o C KJ/m3KJ/m3KJ/m3KJ/m3KJ/m3KJ/m3KJ/m3o C Kcal/Nm30.08077140.733620.1210780.06453 100169.70129.60150.5040.6031.0036.0031.5610032.4230.2233 200357.00259.60303.9085.4162.1172.7064.0620065.4064.5533 300558.00391.30461.90133.4993.61110.5097.5030099.1399.4833 400770.80528.50625.30184.40126.44149.59131.74400134.26135.0133 500994.80663.00793.40237.99158.61189.81166.74500169.33171.1433 6001220.60802.60965.60292.01192.01231.00202.46600205.48207.8733 7001458.80944.701,145.30349.00226.00274.00238.79700242.57245.2033 8001701.301,091.001,333.40407.01261.00319.00275.67800280.77283.1333 9001947.901,241.501,521.50466.00297.01364.00313.04900319.80321.6633 10002198.701,391.901,722.20526.00332.99412.01350.851000359.30360.7933 11002453.701542.401922.80587.01369.00460.00388.971100398.91400.5233 12002712.801692.902127.60649.00405.00509.00427.411200438.75440.8533 13002972.001847.602340.80711.00442.01560.00466.031300479.57481.7833 14003235.302006.402554.00774.00480.00611.00511.041400521.61523.3133 15003498.702161.102775.50837.01517.01664.00552.181500562.92565.4433 16003762.002319.902997.10900.00555.00717.01593.921600604.99608.1733 17004029.502478.703222.80964.00592.99771.00636.261700647.30651.5033 18004297.002637.603452.701027.99631.00826.00679.201800689.79695.4333 19004564.602800.603682.601092.01670.00881.00722.741900733.04739.9633 20004836.302959.403920.801157.01707.99937.99766.882000775.90651785.0933
锅炉课程设计 焓值计算表格
烟气或空气温度RO2N2H2O hy0湿空气400771.88526.52626.163143.61028541.76 500994.35663.8794.853985.93835684.15 6001224.66804.12968.884850.57724829.74 7001461.88947.521148.845737.21036978.42 8001704.881093.61334.46643.047841129.12 9001952.281241.551526.047563.989431282.32 10002203.51391.71722.98500.24921437.3 11002458.391543.741925.119450.567391594.89 12002716.561697.162132.2810412.36041753.44 13002976.741852.762343.6411387.10041914.25 14003239.042008.722559.212367.81562076.2 15003503.121662779.0513357.96942238.9 16003768.82324.483001.7614356.08372402.88 17004036.312484.043229.3215363.1022567.34 18004304.72643.663458.3416372.07392731.86 19004574.062804.213690.3717387.44262898.83 20004844.229653925.618406.47223065.6 21005115.393127.534163.2519434.7493233.79 22005386.483289.224401.9820460.34983401.64
表1烟道中各受热面的过量空气系数及漏风系数
1、煤的收到基各组成成分之和为100%校核 9.42=ar C 9.42=ar C 7.5=ar O 9.0=ar N 5.0=ar S .43=ar H 15=ar M 8.29=ar A 47=daf V 100=++++++ar ar ar ar ar ar ar A M S N O H C 2、煤种判别及主要性质参数 2.1煤种判别 由煤的挥发份的百分比为47%知此煤种为烟煤。 2.2主要性质参数： 燃料特性系数：1373.0375.0038.0125.0* 37.2=++-=ar ar ar ar ar S C N O H β 64.41805065 .0121 121)(max 2=+=+= βRO 3、锅炉的基本结构 采用单锅筒∏型布置，上升烟道为燃烧室和凝渣管。水平烟道布置两级悬挂对流过热器，垂直下行烟道布置两级省煤器和两级管式空气预热器。 整个炉膛全部布满水冷壁，炉膛出口凝渣管束由锅炉后墙水冷壁延伸组成，在炉膛出口处采用由后墙水冷壁延伸构成的折焰角，以使烟气更好的充满炉膛。炉膛采用光管水冷壁布置。 对流过热器分两级布置，由悬挂式蛇形管束组成，在两级之间有锅炉自制冷凝水喷水减温装置，由进入锅炉的给水来冷却饱和蒸汽制成凝结水，回收凝结放热量后在进入省煤器。 省煤器和空气预热器采用两级配合布置，以节省受热面，减少钢材消耗。 锅炉采用四根集中下降管，分别供水给12组水冷壁系统。 燃烧方式采用四角布置的直流燃烧器。 根据煤种特性选取筒式钢球磨煤机的负压中储式系统。 4、辅助计算 4.1 理论空气量计算 kg m O S H C V ar ar ar ar /82.44)1007.01007.010056.5100886.1(21.01 30=-++= 4.2 实际空气量和过量空气系数 设计锅炉为固态排渣煤粉炉，燃用燃料为烟煤，故取过量空气系数为 2 .1=''l α kg m V V l k /3784.52.1*82.4430==?''=α 4.3 漏风系数和空气平衡
环评中的锅炉烟气与灰渍计算汇总
环评中的锅炉烟气与灰渣计算 一锅炉的表示方法 1■锅炉容量的表示方法 用功率表示：通常用MW 为0.7 1.4 2.8 7.0 等 用蒸发量（即产热量）表示：通常用t/h 为1.0 2.0 4.0 10.0等 两者表示方法之间的关系：0.7MW相当于1.0t/h 即MW数除以0.7即为锅炉的吨位数 2.锅炉型号的表示方法 蒸发量在20吨/时以下，工作压力在25公斤/厘米2（表压）以下的蒸汽锅炉属工业锅炉范围。我国规定工业锅炉产品型号由三部分组成，各部分之间用短横线隔开.其列示方式如下： 第一部分第二部分第三部分
如是快装锅炉，在型号的第一部分第一段用K（快）代替锅筒数量代号，组成KZ （快、纵）、KH （快、横）和KL（快、立）三个形式代号，对纵横锅筒式也用KZ （快、纵）形式代号,强制循环式用KQ （快快强）形式代号.
、锅炉耗煤量计算: 严-i) Q L 式中：B――锅炉耗煤量，kg/h ； D--- i" i 蒸汽量， 蒸汽热焓值，kJ/kg ；' 给水热焓值，kJ/kg ; Q L煤的低位发热值，kJ/kg ; n 锅炉热效率 水的比热为1kcal/kg °C 相当于4.186kJ/ kg C 水的汽化热（100度）539kcal/kg 相当于2256.3KJ/kg 这样,可由给水温度，计算出给水热焓值i '来,通常,锅炉蒸汽为饱和蒸汽，其热焓值i"按蒸汽压力和温度由下表选取
由于锅炉烟气和灰渣均有相当高的温度，携带热量外排，加上炉体放热等，热损失较大■一般锅炉的热效率维持在0.8左右，一般小型炉0.75?0.8，大型炉0.8?0.85 , 热效率很少超过0.9的。
锅炉烟气计算
以1t，1.25MPa燃煤蒸汽锅炉为例 1.25MPa下饱和蒸汽的焓值为2788KJ/kg，进水焓值(20度)为84 KJ/kg 产生1t蒸汽所需热量为： Q=1000x(2788-84)=2704000（KJ）=2704000÷4.18=646890（kcal） 二类标煤的热值为5500kcal/kg 1kcal=4.1868kJ 燃煤锅炉的热效率一般为78 % 产生1t蒸汽燃料耗量：646890÷5500÷78 %=150.1 kg 锅炉烟气计算：1 Kg煤产生10-11m3烟气； 蒸汽锅炉耗煤量计算：耗煤量=锅炉功率X3600/煤燃烧热/锅炉效率。0.7MW（1吨）锅炉标准煤（29MJ/KG，烟煤更低）耗煤量=0.7X3600/29/0.65=133公斤/小时，实际可能更高。 源强计算公式： 额定蒸汽压力是指蒸汽锅炉在规定的给水压力和负荷范围内长期连续运行所必须保证的锅炉出口的蒸汽压力，也就是锅炉铭牌上标明的压力。根据我国工业锅 根据GB3100-82《国际单位制及其应用》的规定，压力单位应用帕[斯卡]，单位符号为Pa，或帕的十进倍数，本标准中采用兆帕(MPa)，即1MPa=106Pa，这样1MPa=10.197kgf／cm2，因为锅炉压力参数要在锅炉铭牌中表示，为使锅炉铭牌不致出现过多的小数，本标准中的压力参数等级定为0.4；0.7；1.0；1.25；1.6； 2.5MPa六档 麻石除尘器主要由文丘里管、主筒、溢水槽、副筒等组成，其工作原理是：含尘气流通过烟道进入文丘里管，在喉部的入口将水均匀地喷入烟气中，高速的烟气将水溶化成细小的水滴。在这个过程烟气中的灰料被湿润，使它的重量加大而有利于离心分离，在高速呈紊流状态中，由于水滴与尘粒的差别较大，它们的速度差也较大，这样灰粒与水滴就发生了碰撞凝聚，尤其是粒经细小的灰尘料可以被水滴水容，这些都为灰料的分离做好充分准备，此后进入主筒。主筒是一个圆形筒体，水从除尘器上部的溢流槽进入主筒，使整个圆筒内壁形成一层水膜从上而下流动，烟气由筒体下部切向进入，在筒体旋转上升，含尘气体在离心力作用下始终与筒壁面的水膜发生摩擦，这样含尘气体被水膜湿润，尘粒随水流到除尘器底部，从排水口排走，在筒底部设有水封槽以防止烟气从底部排出，除尘后的废