烟气焓值表
烟气的物性参数
t/℃
比热容
烟气焓（c0yty）/kJ•m-3
kJ/m3•℃
kCal/m3•℃
kJ/m3•℃
kCal/m3•℃
100
1.3811
0。3299
138。11
1200
1。5884
0.3794
1906。08
200
1。4003
0.3345
280。06
1300
1。6032
0。3829
2084。15
1700
1.6531
0.3948
2810.21
700
1.5018
0。3587
1051.27
1800
1。6636
0.3973
2994。55
800
1。5210
0。3633
1216.80
1900
1。6735
0。3997
3179.73
900
1.5396
0.3677
1385。67
2000
1。6832
0.4020
0。59
1000
0。275
1。306
39.230
109。21
4。930
174。3
0。58
1100
0.257
1.323
42。287
124.37
5。169
197.1
0。57
1200
0。240
1。340
45.427
141.27
5。402
221。0
0。56
通用烟气焓
当缺乏燃料元素分析成分时，可通过燃料收到基的低位发热量按经验公式计算出理论空气量L0和理论烟气量V0后，按下式计算烟气焓：
锅炉烟气焓温表
100170.03129.58150.52200357.46259.92304.46300558.81392.01462.72400771.88526.52626.16500994.35663.8794.856001224.66804.12968.887001461.88947.521148.848001704.881093.61334.49001952.281241.551526.0410002203.51391.71722.911002458.391543.741925.1112002716.561697.162132.2813002976.741852.762343.6414003239.042008.722559.215003503.121662779.0516003768.82324.483001.7617004036.312484.043229.3218004304.72643.663458.3419004574.062804.213690.3720004844.229653925.621005115.393127.534163.2522005386.483289.224401.98温度CO2N2H2O理论空气量 6.053理论氮容积 4.787ＲＯ２容积 1.151理论干烟气容积0.4631理论水蒸气容积0.4631项目名称炉膛、后屏、凝渣管高温过热器低过烟道进口过量空气系数 1.2 1.23 1.26烟道出口过量空气系数 1.2 1.2 1.23烟道平均过量空气系数 1.2 1.215 1.245干烟气容积 1.6737 1.764495 1.946085水蒸气容积0.482590660.484052460.486976059烟气总容积 2.15629066 2.24854746 2.433061059 Ro2气体占烟气容积份额0.5337870360.5118860160.473066632水蒸气占烟气容积份额0.2238059410.2152734010.200149543三原子气体和水蒸气占烟气0.7575929770.7271594170.673216175容积飞灰浓度146.0842018140.0904387129.4665413烟气质量10.136261610.2548398710.49199641质量飞灰浓度0.0310765460.0307172030.030022885885.709802132.43801.5987925.452130.04 1796.668926266.361612.2770853.2665261.42 2734.027812402.692437.4825783.0655395.16 3698.859816541.763279.27328113.4531.56 4690.202485684.154141.15995144.4275671.35 5707.594428829.745022.41622176.337813.9 6750.429924978.325921.77096208.908959.56 7815.340721129.126834.56336241.6681107.36 8897.0832541282.327761.88296275.27851257.84 9996.171391437.38699.9769309.961409.7 11111.008711594.899653.86917345.241563.54 12238.524351753.4410613.57232379.891719.24 13380.729541914.2511586.95525428.41876.16 14529.04322076.212567.2386494.8652033.92 15687.688162238.913552.0617553.772193 16855.289622402.8814544.63264576.452353.28 18032.390382567.3415540.10902650.792513.96 19211.467372731.8616535.94858687.962676.06 20397.506682898.8317546.61799742.772838.41 21587.074563065.618556.0768791.283002 22787.301083233.7919574.13087831.63165.33 23983.891563401.6420590.12692869.43329.7理论烟气焓湿空气理论空气焓飞灰的焓干空气高温省煤器高温空气预热器低温省煤器低温空气预热器1.28 1.31 1.31 1.331.26 1.28 1.33 1.361.27 1.295 1.32 1.3452.09741 2.248735 2.40006 2.5513850.4894123910.4918487240.4942850560.4967213892.586822391 2.7405837242.8943450563.0481063890.444947440.419983520.3976720040.3776114920.1891944310.17946860.1707761330.1629606470.6341418710.599452120.5684481370.540572138121.7710196114.9390173108.8329117103.342849610.6896268610.8872573111.0848877611.282518210.029467820.028*******.028*******.027919299130.1780.81071.481561100.909282910.959124 261.42169.12172.3908421132.198984937.358886 395.01263.73304.5898261163.524646964.832004 531.563604468.1144721194.747503991.342669 671.35458.55662.8619751225.5526971017.391943 814.44559.86888.4146721255.2774441042.835496 960.4663.28143.6921161280.2292761064.910796 1108.96767.29423.9213921300.8169541081.742534 1259.64873.910724.738351321.3884241099.088136 1412.698412046.126771340.8957751114.837321 1567.28109613387.022551354.1062671127.515637 1723.32120614741.128811385.3917821142.205196 1880.45136016126.520591410.8353261148.313656 2038.4157117537.355921414.5145751158.644955 2198.7175818951.87051388.7956491167.601461 2359.36183020340.666141450.5360421177.100766 2520.25206621791.202191415.4149041179.076992 2682.182********.617091442.9831851186.039303 2844.68235824649.600281439.9696451189.567883 3007.8251226089.569921444.1573291200.226515 3171.42264027533.727251437.5896931196.590483 3335.2276028971.31694#VALUE!#VALUE!CO飞灰、炉渣Hy焓增理论烟气焓增a”= 1.2炉膛、屏、凝渣管1095.5295241125.2296311119.5774871149.551135.6094631165.76355 2220.7591541156.9551492269.1274671181.7112301.3730081198.21542 3377.7143031188.7783673450.838781214.0323499.5884321230.8679 4566.492671220.6041034664.8708691246.4614730.4563341263.69844 5787.0967741251.9903855911.3315721278.4285994.1547711296.0532 7039.0871591282.2580867189.7596451309.2397290.207971327.22582 8321.3452451307.6130488498.9983741334.9978617.4337931353.25267 9628.9582931328.6365429833.9951941356.4569970.6864611375.00252 10957.594831349.53124211190.451321377.67411345.688981396.43594 12307.126081369.51254312568.125381398.12912742.124921417.20716 13676.638621382.89736213966.25471411.68814159.332081430.88252 15059.535981414.5932715377.943151443.79515590.21461463.26242 16474.129251440.24382716821.737911469.65217053.477011489.25799 17914.373081444.0592*******.390241473.60418542.735011493.30042 19358.432351418.57277719764.99421448.3520036.035431468.20132 20777.005121480.40033321213.34411510.26521504.236761530.17415 22257.405461445.29009122723.608731475.16523034.410911495.08207 23702.695551473.30326724198.7741503.62324529.492981523.83674 25175.998811470.25340925702.397351500.53726053.329711520.72635 26646.252221474.69895127202.934531505.24127574.056061525.60165 28120.951181468.06957528708.17511498.54929099.657721518.86938 29589.02075#VALUE!30206.72456#VALUE!30618.5271#VALUE! Hy焓增Hy焓增Hy焓增a”= 1.23a”= 1.26a”= 1.28高温过热器低温过热器高温省煤器1159.6574271190.0842349.7413211222.9723572.7129091256.1224828.8345331289.5556118.389571322.4917440.8804561354.2068795.0869221380.63610175.723361402.82211578.545471424.57913003.124231445.82414448.948151459.67415908.621771492.46417401.085671518.66618919.752171522.84520442.597281497.97821940.575731560.03823500.614181524.95725025.571431554.15726579.728251551.0128130.738371556.14329686.881641549.34931236.2309#VALUE! Hy焓增a” 1.31高温空气预热器。
烟气焓温表
烟气焓温表 烟气（或空气）温度（℃)
理论烟气的焓
100 200 300 400 500 600 700 800 900 1000
单位
炉膛
后屛过热器
1.15 1.2 1.175 7.7432 0.49888852 8.24208852 0.154087158 0.060529381 0.21461654 21.51153795 11.084485 4.12155E-05
空预器 1.39
1321.208 1308.004 2674.105 1352.897 1342.501 4062.304 1388.199
1.2 1.2 1.2 7.9108 0.50158688 8.41238688 0.150967855 0.059624799 0.210592654 21.07606349 11.30324 4.04179E-05
974.9617 1977.691 3009.4473 4071.4004 5162.4925 6282.2166 7429.8868 8601.7896 9792.1098 11001.447
19.86937102 19.06874 18.59201
12.222011
11.696999
11.959505 12.44077 12.74702
3.73795E-05 3.90573E-05
3.82E-05 3.67E-05 3.58E-05
N2
170.03 357.46 558.81 771.88 994.35 1224.66 1461.88 1704.88 1952.28 2203.5
897.86672 913.95632 932.32528 954.58256 976.03536 996.08032 1010.9632 1027.0528 1038.98592
空气、烟气焓的计算及温焓表
Hy
H
0 y
(
1)Hk0
Hfh
（3-58）
H
0 y
VRO2 (c )RO2
V0 N2
(c )N2
V0 H2O
(c
)H2O
（3-59）
式中 (c )RO2 、（c )N2 及（c )H2O －各成分在温
度C时的焓值。
烟气中飞灰的焓:
H fh
Aar 100
fh
炉子型式
链条炉 抛煤机炉 振动炉排炉 往复炉排炉
手烧炉
fh
0.1～0.2 0.25～0.4 0.15～0.25 0.1～0.2 0.2～0.3
三、烟气焓－温表及焓－温图
烟气焓—温表的编制步骤如下：
1．计算出烟道各处的过量空气系数。
2．对应于度，分别求得假定温度 下的焓。
§3-4 空气、烟气焓的计算及温焓表
锅炉热平衡计算、热力计算中，均用 到空气焓和烟气焓。
空气焓或烟气焓：定压（通常为大气 压力，0.1MPa）条件下，将1kg燃料燃烧 所需的空气量或所产生的烟气量从0C加热
到t C (空气)或C（烟气）时所需的热量，
焓以符号H表示，单位为 kJ/kg。
一、空气焓的计算
(c
)h
(c )h－1kg灰在C时的焓值，查表3-5；
Aa r 100
f
h
－1kg燃料中的飞灰质量，单位为
kg/kg。
表3-6
烟气携带飞灰的质量份额 fh
炉子型式
固态排渣煤粉 炉
液态排渣煤粉 炉
卧式旋风炉 立式前置炉 鼓泡流化床炉
fh
0.9～0.95
0.7～0.85