烟气焓温表
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。
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
0.1～0.15 0.2～0.4 0.5～0.6
3．根据各个过量空气系数下的烟气温度和焓， 绘制成焓－温表，将焓－温表中的温焓关系 画成曲线则成为焓温图，如图3-3所示。
1 2 3 H,kJ/kI 4
图3-3 焓－温图
，℃
表3-8 烟气焓－温表
y
H
0 y
H
0 k
H fh
（℃） kJ/kg kJ/kg kJ/kg
Hy
H
0 y
(
1)Hk0
Hfh
1
2
……
……
Hy Hy Hy
Hy Hy Hy
100
200
300
……
… …
Hy
H
0 y
(
1)Hk0
Hfh
（3-58）
H
0 y
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
在燃烧过程中，随着燃料种类和燃烧条件的变化，烟气焓与空气焓的 差异也会发生变化。
04
温焓表的应用
温焓表的结构和编制
结构
温焓表是一种表格，列出了不同温度 和湿度的空气或烟气的焓值。这些数 据通常按照温度和湿度的不同组合进 行排列，以便用户查找。
编制
温焓表通常由实验测定和计算得出。 在编制过程中，需要收集大量的实验 数据，并进行数据处理和误差分析， 以确保数据的准确性和可靠性。
空气、烟气焓的计算 及温焓表
目录
• 引言 • 空气焓的计算 • 烟气焓的计算 • 温焓表的应用 • 温焓表的局限性及改进方法 • 结论
01
引言
目的和背景
01
了解空气和烟气的焓计算方法， 对于能源利用、燃烧过程、热力 系统分析等具有重要意义。
02
随着工业和能源领域的快速发展 ，准确计算空气和烟气的焓值对 于提高能源利用效率、降低能耗 和减少环境污染具有重要意义。
焓的定义和意义
焓是一个热力学状态参数，表示物质所 含的热能。对于空气和烟气，焓的计算 可以帮助我们了解其热能含量，从而更 好地进行能源利用和热量回收。
焓的计算对于热力系统分析、热力循 环、热工控制等领域具有广泛应用， 是实现节能减排和可持续发展的重要 基础。
02
空气焓的计算
湿空气焓的计算
湿空气焓是指湿空气中含有的热量，包括显热和 潜热两部分。
温焓表的局限性
数据量庞大
温焓表包含了大量的温度、压力 和湿度的数据，使用时需要查找 对应的数据点，操作不便。
精度问题
由于测量技术和数据采集的限制， 温焓表中的数据可能存在一定的 误差和不确定性。
适用围有限
温焓表的数据主要适用于稳态条 件下的空气和烟气，对于非稳态 流动或复杂流动条件下的计算可 能不适用。
烟气焓温表
3792.341
3873.33 1324.222
3927.322778
5015.70975
5124.669 1332.327 5233.627 1360.297
6079.801
6217.397
6354.993316 1339.284 6492.59 1367.921 6630.186 1396.559
空预器 1.39
1321.208 1308.004 2674.105 1352.897 1342.501 4062.304 1388.199
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
温度12345678910111213141516171819202122理论烟气的焓100974961720019776913003009447340040714004500516249256006282216670074298868800860178969009792109810001100144711001222803011200134684736130014725035140015988212815001726268116001854696481700198415993180021138370219002244274682000237509222100250708143220026386646烟气焓温表顺序理论空气的焓1002729310317563106195311091092111197241114767021171902811903202120933721226583112404435125656141263177812744682128428381294634512967709130437661308175213198923131583178878107217856774426996337636319590445865416556257696655865728756962048859667328963565921069214256117550617612833132139188448150095856161089075217211447361831438944194337563220551782421679328162280459456差差飞灰的焓ro2n289786672913956329323252895458256976035369960803210109632102705281062919210857128109074081125266414325842998143467540163828812920599252541175853613602456154942471744632194320821382382411282785383311693432445936630183872232422860544537764680724893481700335746558817718899435122466146188170488195228220352458392716562976743239043