鍋爐低氮燃燒設(shè)計(jì)計(jì)算表

鍋爐低氮燃燒設(shè)計(jì)計(jì)算,,,,,,,,,

序號(hào),計(jì)算項(xiàng)目,符號(hào)表示,參數(shù)來(lái)源,計(jì)算公式,國(guó)際單位,計(jì)算結(jié)果,參數(shù)說(shuō)明,規(guī)范依據(jù),其他說(shuō)明

,一、設(shè)計(jì)基礎(chǔ)參數(shù)錄入,,,,,,,,

1,鍋爐額定蒸發(fā)量,D,設(shè)計(jì)值,-,t/h,130,鍋爐的額定蒸發(fā)量,DL/T1858-2018,典型130t/h煤粉鍋爐

2,鍋爐額定壓力,P,設(shè)計(jì)值,-,MPa,3.82,鍋爐的額定工作壓力,DL/T1858-2018,中壓鍋爐參數(shù)

3,鍋爐額定溫度,T,設(shè)計(jì)值,-,℃,450,鍋爐的額定蒸汽溫度,DL/T1858-2018,飽和蒸汽溫度

4,鍋爐額定熱功率,Q,計(jì)算值,Q=D×(h_s-h_w),MW,91.2,鍋爐的額定熱功率,GB10184-2015,熱功率計(jì)算

5,煤種類型,coal_type,選用值,-,-,煙煤,設(shè)計(jì)煤種的類型,DL/T1858-2018,煙煤，典型動(dòng)力煤

6,設(shè)計(jì)煤種收到基低位發(fā)熱量,"Q_net,ar",設(shè)計(jì)值,-,MJ/kg,22,設(shè)計(jì)煤種的收到基低位發(fā)熱量,GB10184-2015,煙煤典型發(fā)熱量

7,鍋爐設(shè)計(jì)燃料消耗量,B,計(jì)算值,"B=Q/(Q_net,ar×η)",t/h,12.8,鍋爐的設(shè)計(jì)燃料消耗量,GB10184-2015,燃料消耗量

8,爐膛容積,V_f,設(shè)計(jì)值,-,m3,450,鍋爐爐膛的總?cè)莘e,DL/T1858-2018,爐膛容積

9,爐膛橫截面積,A_f,設(shè)計(jì)值,-,m2,36,鍋爐爐膛的橫截面積,DL/T1858-2018,爐膛截面積

10,燃燒器數(shù)量,n_burner,設(shè)計(jì)值,-,-,4,低氮燃燒器的數(shù)量,JB/T10950-2010,四角布置燃燒器

11,過(guò)量空氣系數(shù),α,設(shè)計(jì)值,-,-,1.2,鍋爐的設(shè)計(jì)過(guò)量空氣系數(shù),GB10184-2015,低氮燃燒的過(guò)量空氣系數(shù)

12,爐膛出口過(guò)量空氣系數(shù),α_out,設(shè)計(jì)值,-,-,1.25,爐膛出口的過(guò)量空氣系數(shù),GB10184-2015,出口過(guò)量空氣系數(shù)

13,設(shè)計(jì)環(huán)境溫度,T0,設(shè)計(jì)值,-,℃,20,設(shè)計(jì)環(huán)境溫度,GB13271-2014,標(biāo)準(zhǔn)環(huán)境溫度

14,設(shè)計(jì)環(huán)境壓力,P0,設(shè)計(jì)值,-,kPa,101.325,設(shè)計(jì)環(huán)境壓力,GB13271-2014,標(biāo)準(zhǔn)大氣壓

15,低氮改造目標(biāo)NOx濃度,NOx_target,設(shè)計(jì)值,-,mg/m3,100,低氮改造的目標(biāo)NOx排放濃度,GB13271-2014,滿足特別排放限值

16,改造前NOx排放濃度,NOx_original,實(shí)測(cè)值,-,mg/m3,450,改造前的NOx排放濃度,實(shí)測(cè)報(bào)告,改造前的實(shí)測(cè)值

,二、煤質(zhì)特性參數(shù)計(jì)算,,,,,,,,

17,收到基碳含量,C_ar,設(shè)計(jì)值,-,%,55,收到基碳元素的含量,GB10184-2015,煙煤典型參數(shù)

18,收到基氫含量,H_ar,設(shè)計(jì)值,-,%,3.2,收到基氫元素的含量,GB10184-2015,同上

19,收到基氧含量,O_ar,設(shè)計(jì)值,-,%,8,收到基氧元素的含量,GB10184-2015,同上

20,收到基氮含量,N_ar,設(shè)計(jì)值,-,%,1,收到基氮元素的含量,GB10184-2015,燃料氮的含量

21,收到基硫含量,S_ar,設(shè)計(jì)值,-,%,0.8,收到基硫元素的含量,GB10184-2015,同上

22,收到基灰分含量,A_ar,設(shè)計(jì)值,-,%,20,收到基灰分的含量,GB10184-2015,同上

23,收到基水分含量,M_ar,設(shè)計(jì)值,-,%,12,收到基水分的含量,GB10184-2015,同上

24,干燥無(wú)灰基揮發(fā)分,V_daf,設(shè)計(jì)值,-,%,28,干燥無(wú)灰基揮發(fā)分的含量,GB10184-2015,煙煤的揮發(fā)分

25,煤的摩爾質(zhì)量,M_coal,計(jì)算值,M_coal=100/(C_ar/12+H_ar/1+O_ar/16+N_ar/14+S_ar/32),kg/kmol,18.5,煤的平均摩爾質(zhì)量,GB10184-2015,摩爾質(zhì)量計(jì)算

26,灰的變形溫度,DT,設(shè)計(jì)值,-,℃,1200,灰的變形溫度,GB10184-2015,灰熔點(diǎn)參數(shù)

27,灰的軟化溫度,ST,設(shè)計(jì)值,-,℃,1250,灰的軟化溫度,GB10184-2015,同上

28,灰的流動(dòng)溫度,FT,設(shè)計(jì)值,-,℃,1300,灰的流動(dòng)溫度,GB10184-2015,同上

29,煤的可磨性系數(shù),HGI,設(shè)計(jì)值,-,-,55,煤的可磨性系數(shù),GB10184-2015,可磨性

30,煤粉細(xì)度,R90,設(shè)計(jì)值,-,%,15,煤粉的細(xì)度，90μm篩的通過(guò)率,DL/T1858-2018,煤粉細(xì)度

,三、燃燒空氣量計(jì)算,,,,,,,,

31,理論空氣量(碳),V0_C,計(jì)算值,V0_C=1.866×C_ar/100,Nm3/kg,1.026,碳燃燒需要的理論空氣量,GB10184-2015,碳的燃燒空氣量

32,理論空氣量(氫),V0_H,計(jì)算值,V0_H=5.55×H_ar/100,Nm3/kg,0.178,氫燃燒需要的理論空氣量,GB10184-2015,氫的燃燒空氣量

33,理論空氣量(硫),V0_S,計(jì)算值,V0_S=0.7×S_ar/100,Nm3/kg,0.0056,硫燃燒需要的理論空氣量,GB10184-2015,硫的燃燒空氣量

34,理論空氣量(氧),V0_O,計(jì)算值,V0_O=0.7×O_ar/100,Nm3/kg,0.056,氧提供的空氣量,GB10184-2015,氧的貢獻(xiàn)

35,理論空氣量(干),V0_dry,計(jì)算值,V0=V0_C+V0_H+V0_S-V0_O,Nm3/kg,1.159,干基的理論空氣量,GB10184-2015,干空氣量

36,理論濕空氣量,V0_wet,計(jì)算值,V0_wet=V0_dry×(1+0.001293×d),Nm3/kg,1.168,濕基的理論空氣量,GB10184-2015,濕空氣量，d為濕度10g/kg

37,實(shí)際干空氣量,V_air_dry,計(jì)算值,V_air=α×V0_dry,Nm3/kg,1.391,實(shí)際的干空氣量,GB10184-2015,實(shí)際空氣量

38,實(shí)際濕空氣量,V_air_wet,計(jì)算值,V_air_wet=α×V0_wet,Nm3/kg,1.402,實(shí)際的濕空氣量,GB10184-2015,實(shí)際濕空氣量

39,總空氣流量,Q_air,計(jì)算值,Q_air=B×V_air_wet,Nm3/h,17945.6,鍋爐的總空氣流量,GB10184-2015,總空氣量

40,一次風(fēng)風(fēng)量,V_pa,設(shè)計(jì)值,-,%,20,一次風(fēng)占總風(fēng)量的比例,DL/T1858-2018,一次風(fēng)比例

41,一次風(fēng)流量,Q_pa,計(jì)算值,Q_pa=Q_air×V_pa/100,Nm3/h,3589.1,一次風(fēng)的總流量,DL/T1858-2018,一次風(fēng)流量

42,二次風(fēng)風(fēng)量,V_sa,設(shè)計(jì)值,-,%,50,二次風(fēng)占總風(fēng)量的比例,DL/T1858-2018,二次風(fēng)比例

43,二次風(fēng)流量,Q_sa,計(jì)算值,Q_sa=Q_air×V_sa/100,Nm3/h,8972.8,二次風(fēng)的總流量,DL/T1858-2018,二次風(fēng)流量

44,燃盡風(fēng)風(fēng)量,V_oa,設(shè)計(jì)值,-,%,30,燃盡風(fēng)占總風(fēng)量的比例,DL/T1858-2018,燃盡風(fēng)比例

45,燃盡風(fēng)流量,Q_oa,計(jì)算值,Q_oa=Q_air×V_oa/100,Nm3/h,5383.7,燃盡風(fēng)的總流量,DL/T1858-2018,燃盡風(fēng)流量

,四、燃燒產(chǎn)物量計(jì)算,,,,,,,,

46,CO2生成量,V_CO2,計(jì)算值,V_CO2=1.866×C_ar/100,Nm3/kg,1.026,燃燒生成的CO2的量,GB10184-2015,CO2的量

47,SO2生成量,V_SO2,計(jì)算值,V_SO2=0.7×S_ar/100,Nm3/kg,0.0056,燃燒生成的SO2的量,GB10184-2015,SO2的量

48,H2O生成量(氫),V_H2O_H,計(jì)算值,V_H2O_H=11.1×H_ar/100,Nm3/kg,0.355,氫燃燒生成的H2O的量,GB10184-2015,氫的燃燒產(chǎn)物

49,H2O生成量(水分),V_H2O_M,計(jì)算值,V_H2O_M=1.24×M_ar/100,Nm3/kg,0.149,煤中水分生成的H2O的量,GB10184-2015,水分的貢獻(xiàn)

50,H2O生成量(空氣),V_H2O_A,計(jì)算值,V_H2O_A=0.001293×d×V_air_dry,Nm3/kg,0.018,空氣中水分生成的H2O的量,GB10184-2015,空氣水分的貢獻(xiàn)

51,總H2O生成量,V_H2O,計(jì)算值,V_H2O=V_H2O_H+V_H2O_M+V_H2O_A,Nm3/kg,0.522,總H2O的生成量,GB10184-2015,總H2O

52,N2生成量,V_N2,計(jì)算值,V_N2=0.79×V_air_dry+0.8×N_ar/100,Nm3/kg,1.106,燃燒生成的N2的量,GB10184-2015,N2的量

53,O2剩余量,V_O2,計(jì)算值,V_O2=0.21×(α-1)×V0_dry,Nm3/kg,0.0487,剩余的O2的量,GB10184-2015,剩余氧

54,干煙氣量,V_gas_dry,計(jì)算值,V_gas_dry=V_CO2+V_SO2+V_N2+V_O2,Nm3/kg,2.186,干基的煙氣量,GB10184-2015,干煙氣量

55,濕煙氣量,V_gas_wet,計(jì)算值,V_gas_wet=V_gas_dry+V_H2O,Nm3/kg,2.708,濕基的煙氣量,GB10184-2015,濕煙氣量

56,總煙氣流量,Q_gas,計(jì)算值,Q_gas=B×V_gas_wet,Nm3/h,34662.4,鍋爐的總煙氣流量,GB10184-2015,總煙氣量

57,飛灰量,G_fly,計(jì)算值,G_fly=A_ar×α_fly/100,kg/kg,0.16,飛灰的生成量,GB10184-2015,飛灰，α_fly=0.8

58,底渣量,G_slag,計(jì)算值,G_slag=A_ar×(1-α_fly)/100,kg/kg,0.04,底渣的生成量,GB10184-2015,底渣

,五、熱力參數(shù)計(jì)算,,,,,,,,

59,理論燃燒溫度,T_ad,計(jì)算值,"T_ad=Q_net,ar/c_p_gas",℃,1950,理論絕熱燃燒溫度,GB10184-2015,絕熱火焰溫度

60,爐膛平均溫度,T_f_avg,計(jì)算值,T_f_avg=0.8×T_ad,℃,1560,爐膛的平均溫度,DL/T1858-2018,爐膛平均溫度

61,爐膛出口溫度,T_f_out,設(shè)計(jì)值,-,℃,950,爐膛的出口溫度,DL/T1858-2018,爐膛出口煙溫

62,一次風(fēng)溫度,T_pa,設(shè)計(jì)值,-,℃,250,一次風(fēng)的預(yù)熱溫度,DL/T1858-2018,一次風(fēng)溫

63,二次風(fēng)溫度,T_sa,設(shè)計(jì)值,-,℃,300,二次風(fēng)的預(yù)熱溫度,DL/T1858-2018,二次風(fēng)溫

64,燃盡風(fēng)溫度,T_oa,設(shè)計(jì)值,-,℃,300,燃盡風(fēng)的預(yù)熱溫度,DL/T1858-2018,燃盡風(fēng)溫

65,煙氣再循環(huán)溫度,T_rec,設(shè)計(jì)值,-,℃,150,煙氣再循環(huán)的溫度,DL/T1858-2018,再循環(huán)煙溫

66,爐膛容積熱負(fù)荷,q_v,計(jì)算值,"q_v=B×Q_net,ar/V_f",MW/m3,0.626,爐膛的容積熱負(fù)荷,DL/T1858-2018,容積熱負(fù)荷

67,爐膛截面熱負(fù)荷,q_A,計(jì)算值,"q_A=B×Q_net,ar/A_f",MW/m2,7.82,爐膛的截面熱負(fù)荷,DL/T1858-2018,截面熱負(fù)荷

68,燃燒器區(qū)域熱負(fù)荷,q_b,計(jì)算值,"q_b=B×Q_net,ar/(n_burner×A_burner)",MW/m2,15.6,燃燒器區(qū)域的熱負(fù)荷,DL/T1858-2018,燃燒器熱負(fù)荷

69,煙氣停留時(shí)間,τ,計(jì)算值,τ=V_f×T0/(Q_gas×T_f_avg),s,2.8,煙氣在爐膛的停留時(shí)間,DL/T1858-2018,停留時(shí)間

70,主燃區(qū)過(guò)量空氣系數(shù),α_main,計(jì)算值,α_main=α×(1-V_oa/100),-,0.84,主燃區(qū)的過(guò)量空氣系數(shù),DL/T1858-2018,分級(jí)配風(fēng)的主燃區(qū)系數(shù)

71,主燃區(qū)溫度,T_main,計(jì)算值,T_main=T_f_avg×0.95,℃,1482,主燃區(qū)的平均溫度,DL/T1858-2018,主燃區(qū)溫度

,六、低氮燃燒器參數(shù)計(jì)算,,,,,,,,

72,單個(gè)燃燒器功率,P_burner,計(jì)算值,P_burner=Q/n_burner,MW,22.8,單個(gè)低氮燃燒器的功率,JB/T10950-2010,單個(gè)燃燒器功率

73,燃燒器噴口直徑,d_burner,設(shè)計(jì)值,-,mm,600,燃燒器噴口的直徑,JB/T10950-2010,噴口尺寸

74,一次風(fēng)速,v_pa,設(shè)計(jì)值,-,m/s,25,一次風(fēng)的噴口風(fēng)速,DL/T1858-2018,一次風(fēng)速

75,二次風(fēng)速,v_sa,設(shè)計(jì)值,-,m/s,45,二次風(fēng)的噴口風(fēng)速,DL/T1858-2018,二次風(fēng)速

76,旋流強(qiáng)度,S,計(jì)算值,S=ω×r/v,-,1.5,燃燒器的旋流強(qiáng)度,JB/T10950-2010,旋流強(qiáng)度

77,回流區(qū)長(zhǎng)度,L_rec,計(jì)算值,L_rec=2.5×d_burner/1000,m,1.5,燃燒器的回流區(qū)長(zhǎng)度,JB/T10950-2010,回流區(qū)長(zhǎng)度

78,回流區(qū)直徑,d_rec,計(jì)算值,d_rec=0.8×d_burner/1000,m,0.48,燃燒器的回流區(qū)直徑,JB/T10950-2010,回流區(qū)直徑

79,煤粉停留時(shí)間,τ_p,計(jì)算值,τ_p=L_rec/v_pa,s,0.06,煤粉在回流區(qū)的停留時(shí)間,JB/T10950-2010,停留時(shí)間

80,濃淡比,R_cd,設(shè)計(jì)值,-,-,4,濃淡燃燒的濃淡比,DL/T1858-2018,濃淡比

81,濃相煤粉濃度,C_c,計(jì)算值,C_c=R_cd/(1+R_cd)×C_p,kg/Nm3,0.64,濃相的煤粉濃度,DL/T1858-2018,濃相濃度

82,淡相煤粉濃度,C_d,計(jì)算值,C_d=1/(1+R_cd)×C_p,kg/Nm3,0.16,淡相的煤粉濃度,DL/T1858-2018,淡相濃度

83,濃相過(guò)量空氣系數(shù),α_c,計(jì)算值,α_c=α/R_cd,-,0.3,濃相的過(guò)量空氣系數(shù),DL/T1858-2018,濃相的過(guò)量空氣系數(shù)

84,淡相過(guò)量空氣系數(shù),α_d,計(jì)算值,α_d=α×R_cd/(1+R_cd),-,0.96,淡相的過(guò)量空氣系數(shù),DL/T1858-2018,淡相的過(guò)量空氣系數(shù)

85,濃淡燃燒效率,η_cd,計(jì)算值,η_cd=0.98,-,0.98,濃淡燃燒的效率,DL/T1858-2018,濃淡燃燒效率

,七、分級(jí)配風(fēng)參數(shù)計(jì)算,,,,,,,,

86,燃盡風(fēng)噴口高度,h_oa,設(shè)計(jì)值,-,m,8,燃盡風(fēng)噴口距離主燃燒器的高度,DL/T1858-2018,燃盡風(fēng)高度

87,燃盡風(fēng)風(fēng)速,v_oa,設(shè)計(jì)值,-,m/s,50,燃盡風(fēng)的噴口風(fēng)速,DL/T1858-2018,燃盡風(fēng)風(fēng)速

88,燃盡風(fēng)穿透深度,L_oa,計(jì)算值,L_oa=v_oa/v_gas×h_oa,m,12,燃盡風(fēng)的穿透深度,DL/T1858-2018,穿透深度

89,燃盡風(fēng)混合時(shí)間,τ_oa,計(jì)算值,τ_oa=L_oa/v_gas,s,0.8,燃盡風(fēng)的混合時(shí)間,DL/T1858-2018,混合時(shí)間

90,主燃區(qū)還原時(shí)間,τ_red,計(jì)算值,τ_red=h_oa/v_gas,s,0.53,主燃區(qū)的還原停留時(shí)間,DL/T1858-2018,還原時(shí)間

91,燃料分級(jí)比例,R_fuel,設(shè)計(jì)值,-,%,15,燃料分級(jí)的燃料比例,DL/T1858-2018,燃料分級(jí)比例

92,分級(jí)燃料流量,B_fuel,計(jì)算值,B_fuel=B×R_fuel/100,t/h,1.92,分級(jí)燃料的流量,DL/T1858-2018,分級(jí)燃料流量

93,主燃區(qū)燃料流量,B_main,計(jì)算值,B_main=B×(1-R_fuel/100),t/h,10.88,主燃區(qū)的燃料流量,DL/T1858-2018,主燃區(qū)燃料流量

94,燃料分級(jí)效率,η_fuel,計(jì)算值,η_fuel=0.35,-,0.35,燃料分級(jí)的NOx脫除效率,DL/T1858-2018,分級(jí)效率

95,空氣分級(jí)效率,η_air,計(jì)算值,η_air=0.4,-,0.4,空氣分級(jí)的NOx脫除效率,DL/T1858-2018,空氣分級(jí)效率

96,分級(jí)配風(fēng)總效率,η_stage,計(jì)算值,η_stage=1-(1-η_air)×(1-η_fuel),-,0.61,分級(jí)配風(fēng)的總脫除效率,DL/T1858-2018,總分級(jí)效率

97,分級(jí)配風(fēng)后NOx濃度,NOx_stage,計(jì)算值,NOx_stage=NOx_original×(1-η_stage),mg/m3,175.5,分級(jí)配風(fēng)后的NOx濃度,DL/T1858-2018,分級(jí)后的NOx

98,分級(jí)配風(fēng)校核,check_stage,計(jì)算值,"IF(NOx_stage≤NOx_target,""滿足"",""不滿足"")",-,不滿足,分級(jí)配風(fēng)后的NOx是否滿足目標(biāo),DL/T1858-2018,分級(jí)配風(fēng)校核

,八、煙氣再循環(huán)參數(shù)計(jì)算,,,,,,,,

99,煙氣再循環(huán)比例,r_rec,設(shè)計(jì)值,-,%,20,煙氣再循環(huán)的比例,DL/T1858-2018,再循環(huán)比例

100,再循環(huán)煙氣流量,Q_rec,計(jì)算值,Q_rec=Q_gas×r_rec/100,Nm3/h,6932.5,再循環(huán)煙氣的流量,DL/T1858-2018,再循環(huán)流量

101,再循環(huán)后總空氣流量,Q_air_rec,計(jì)算值,Q_air_rec=Q_air+Q_rec,Nm3/h,24878.1,再循環(huán)后的總風(fēng)量,DL/T1858-2018,總風(fēng)量

102,再循環(huán)后爐膛溫度,T_f_rec,計(jì)算值,T_f_rec=T_f_avg×(1-0.1×r_rec/100),℃,1528.8,再循環(huán)后的爐膛平均溫度,DL/T1858-2018,爐膛溫度降低

103,再循環(huán)后主燃區(qū)溫度,T_main_rec,計(jì)算值,T_main_rec=T_main×(1-0.1×r_rec/100),℃,1452.4,再循環(huán)后的主燃區(qū)溫度,DL/T1858-2018,主燃區(qū)溫度降低

104,熱力型NOx降低比例,η_rec_T,計(jì)算值,η_rec_T=0.5×(1-exp(-0.02×(T_ad-T_f_rec))),-,0.25,熱力型NOx的降低比例,DL/T1858-2018,熱力型NOx降低

105,燃料型NOx降低比例,η_rec_F,計(jì)算值,η_rec_F=0.1×r_rec/100,-,0.02,燃料型NOx的降低比例,DL/T1858-2018,燃料型NOx降低

106,煙氣再循環(huán)總效率,η_rec,計(jì)算值,η_rec=1-(1-η_rec_T)×(1-η_rec_F),-,0.265,煙氣再循環(huán)的總脫除效率,DL/T1858-2018,總再循環(huán)效率

107,再循環(huán)后NOx濃度,NOx_rec,計(jì)算值,NOx_rec=NOx_stage×(1-η_rec),mg/m3,128.9,煙氣再循環(huán)后的NOx濃度,DL/T1858-2018,再循環(huán)后的NOx

108,再循環(huán)風(fēng)機(jī)壓頭,ΔP_rec,設(shè)計(jì)值,-,Pa,2500,再循環(huán)風(fēng)機(jī)的壓頭,DL/T1858-2018,風(fēng)機(jī)壓頭

109,再循環(huán)風(fēng)機(jī)功率,P_rec,計(jì)算值,P_rec=Q_rec×ΔP_rec/1000/η_fan,kW,216.6,再循環(huán)風(fēng)機(jī)的功率,DL/T1858-2018,風(fēng)機(jī)功率，η_fan=0.8

110,再循環(huán)效率校核,check_rec,計(jì)算值,"IF(NOx_rec≤NOx_target,""滿足"",""不滿足"")",-,不滿足,再循環(huán)后的NOx是否滿足目標(biāo),DL/T1858-2018,再循環(huán)校核

,九、氮氧化物生成量計(jì)算,,,,,,,,

111,熱力型NOx生成量,NOx_T,計(jì)算值,NOx_T=3.3×10^14×exp(-54200/T_main)×P^0.5×τ,mg/m3,180,熱力型NOx的生成量,DL/T1858-2018,熱力型NOx

112,燃料型NOx生成量,NOx_F,計(jì)算值,NOx_F=0.4×N_ar×10^6/V_gas_dry,mg/m3,183.5,燃料型NOx的生成量,DL/T1858-2018,燃料型NOx

113,快速型NOx生成量,NOx_P,計(jì)算值,NOx_P=0.05×NOx_T,mg/m3,9,快速型NOx的生成量,DL/T1858-2018,快速型NOx

114,總NOx生成量,NOx_total,計(jì)算值,NOx_total=NOx_T+NOx_F+NOx_P,mg/m3,372.5,總NOx的生成量,DL/T1858-2018,總NOx

115,熱力型NOx占比,r_T,計(jì)算值,r_T=NOx_T/NOx_total×100,%,48.3,熱力型NOx的占比,DL/T1858-2018,熱力型占比

116,燃料型NOx占比,r_F,計(jì)算值,r_F=NOx_F/NOx_total×100,%,49.3,燃料型NOx的占比,DL/T1858-2018,燃料型占比

117,快速型NOx占比,r_P,計(jì)算值,r_P=NOx_P/NOx_total×100,%,2.4,快速型NOx的占比,DL/T1858-2018,快速型占比

118,濃淡燃燒脫除效率,η_cd_nox,計(jì)算值,η_cd_nox=0.25,-,0.25,濃淡燃燒的NOx脫除效率,DL/T1858-2018,濃淡燃燒效率

119,濃淡燃燒后NOx,NOx_cd,計(jì)算值,NOx_cd=NOx_total×(1-η_cd_nox),mg/m3,279.4,濃淡燃燒后的NOx濃度,DL/T1858-2018,濃淡后的NOx

120,濃淡燃燒校核,check_cd,計(jì)算值,"IF(NOx_cd≤NOx_target,""滿足"",""不滿足"")",-,不滿足,濃淡燃燒后的NOx是否滿足目標(biāo),DL/T1858-2018,濃淡燃燒校核

121,熱力型NOx生成速率,r_T_rate,計(jì)算值,r_T_rate=NOx_T/τ,mg/(m3·s),64.3,熱力型NOx的生成速率,DL/T1858-2018,生成速率

122,燃料型NOx生成速率,r_F_rate,計(jì)算值,r_F_rate=NOx_F/τ,mg/(m3·s),65.5,燃料型NOx的生成速率,DL/T1858-2018,生成速率

,十、低氮燃燒效率計(jì)算,,,,,,,,

123,未燃盡碳損失,q4,計(jì)算值,"q4=32682×A_ar×(1-η_cd)/Q_net,ar",%,2.1,未燃盡碳的熱損失,GB10184-2015,未燃盡碳損失

124,排煙熱損失,q2,計(jì)算值,q2=(T_f_out-T0)×(0.36+0.00018×V_gas_wet),%,5.2,排煙的熱損失,GB10184-2015,排煙損失

125,散熱損失,q5,計(jì)算值,q5=0.5,%,0.5,散熱的熱損失,GB10184-2015,散熱損失

126,灰渣物理熱損失,q6,計(jì)算值,"q6=A_ar×(T_slag-T0)×c_slag/Q_net,ar",%,0.5,灰渣的物理熱損失,GB10184-2015,灰渣損失

127,氣體不完全燃燒損失,q3,計(jì)算值,q3=0.3,%,0.3,氣體不完全燃燒的熱損失,GB10184-2015,氣體不完全損失

128,總熱損失,q_total,計(jì)算值,q_total=q2+q3+q4+q5+q6,%,8.6,總的熱損失,GB10184-2015,總損失

129,鍋爐燃燒效率,η,計(jì)算值,η=100-q_total,%,91.4,鍋爐的燃燒效率,GB10184-2015,燃燒效率

130,低氮改造后效率,η_nox,計(jì)算值,η_nox=η-0.5,%,90.9,低氮改造后的燃燒效率,DL/T1858-2018,改造后的效率

131,效率限值,η_limit,選用值,-,%,90,燃燒效率的限值,GB13271-2014,效率限值

132,效率校核,check_eta,計(jì)算值,"IF(η_nox≥η_limit,""滿足"",""不滿足"")",-,滿足,燃燒效率是否滿足要求,GB10184-2015,效率校核

133,燃盡率,burnout_rate,計(jì)算值,"burnout_rate=100-q4/32682×Q_net,ar/A_ar",%,98.5,燃料的燃盡率,GB10184-2015,燃盡率

134,燃盡率校核,check_burnout,計(jì)算值,"IF(burnout_rate≥98,""滿足"",""不滿足"")",-,滿足,燃盡率是否滿足要求,GB10184-2015,燃盡率校核

,十一、爐膛出口NOx濃度計(jì)算,,,,,,,,

135,濃淡燃燒后NOx,NOx_cd,計(jì)算值,NOx_cd=NOx_total×(1-η_cd_nox),mg/m3,279.4,濃淡燃燒后的NOx濃度,DL/T1858-2018,濃淡后的NOx

136,分級(jí)配風(fēng)后NOx,NOx_stage,計(jì)算值,NOx_stage=NOx_cd×(1-η_stage),mg/m3,109,分級(jí)配風(fēng)后的NOx濃度,DL/T1858-2018,分級(jí)后的NOx

137,煙氣再循環(huán)后NOx,NOx_rec,計(jì)算值,NOx_rec=NOx_stage×(1-η_rec),mg/m3,80.1,煙氣再循環(huán)后的NOx濃度,DL/T1858-2018,再循環(huán)后的NOx

138,折算到6%氧的NOx,NOx_6O2,計(jì)算值,NOx_6O2=NOx_rec×(21-6)/(21-O2_out),mg/m3,88,折算到6%氧的NOx濃度,GB13271-2014,標(biāo)準(zhǔn)折算濃度

139,爐膛出口NOx濃度,NOx_out,計(jì)算值,NOx_out=NOx_6O2,mg/m3,88,爐膛出口的NOx濃度,DL/T1858-2018,出口NOx

140,NOx排放限值,NOx_limit,選用值,-,mg/m3,100,NOx的排放限值,GB13271-2014,特別排放限值

141,NOx排放校核,check_nox,計(jì)算值,"IF(NOx_out≤NOx_limit,""滿足"",""不滿足"")",-,滿足,NOx排放是否滿足要求,GB13271-2014,排放校核

142,NOx脫除總效率,η_nox_total,計(jì)算值,η_nox_total=(NOx_original-NOx_out)/NOx_original×100,%,80.4,低氮燃燒的總脫除效率,DL/T1858-2018,總脫除效率

143,脫除效率校核,check_eta_nox,計(jì)算值,"IF(η_nox_total≥75,""滿足"",""不滿足"")",-,滿足,脫除效率是否滿足要求,DL/T1858-2018,效率校核

,十二、低氮改造后參數(shù)校核,,,,,,,,

144,改造后蒸發(fā)量,D_nox,計(jì)算值,D_nox=D×η_nox/η,t/h,129.3,改造后的額定蒸發(fā)量,DL/T1858-2018,蒸發(fā)量

145,蒸發(fā)量校核,check_D,計(jì)算值,"IF(D_nox≥0.98×D,""滿足"",""不滿足"")",-,滿足,蒸發(fā)量是否滿足要求,DL/T1858-2018,蒸發(fā)量校核

146,改造后熱功率,Q_nox,計(jì)算值,Q_nox=Q×η_nox/η,MW,90.7,改造后的額定熱功率,DL/T1858-2018,熱功率

147,熱功率校核,check_Q,計(jì)算值,"IF(Q_nox≥0.98×Q,""滿足"",""不滿足"")",-,滿足,熱功率是否滿足要求,DL/T1858-2018,熱功率校核

148,改造后爐膛溫度,T_f_nox,計(jì)算值,T_f_nox=T_f_rec,℃,1528.8,改造后的爐膛平均溫度,DL/T1858-2018,爐膛溫度

149,爐膛溫度校核,check_T,計(jì)算值,"IF(T_f_nox≤1600,""滿足"",""不滿足"")",-,滿足,爐膛溫度是否滿足要求,DL/T1858-2018,溫度校核

150,改造后過(guò)量空氣系數(shù),α_nox,計(jì)算值,α_nox=α,-,1.2,改造后的過(guò)量空氣系數(shù),DL/T1858-2018,過(guò)量空氣系數(shù)

151,過(guò)量空氣系數(shù)校核,check_alpha,計(jì)算值,"IF(α_nox≤1.25,""滿足"",""不滿足"")",-,滿足,過(guò)量空氣系數(shù)是否滿足要求,GB10184-2015,過(guò)量空氣校核

152,改造后排煙溫度,T_out_nox,計(jì)算值,T_out_nox=T_f_out+5,℃,955,改造后的排煙溫度,DL/T1858-2018,排煙溫度

153,排煙溫度校核,check_T_out,計(jì)算值,"IF(T_out_nox≤160,""滿足"",""不滿足"")",-,不滿足,排煙溫度是否滿足要求,GB10184-2015,排煙溫度校核

154,改造后飛灰含碳量,C_fly,計(jì)算值,"C_fly=q4×Q_net,ar/(32682×A_ar×α_fly)",%,5.2,改造后的飛灰含碳量,GB10184-2015,飛灰含碳量

155,飛灰含碳量校核,check_C_fly,計(jì)算值,"IF(C_fly≤8,""滿足"",""不滿足"")",-,滿足,飛灰含碳量是否滿足要求,GB10184-2015,飛灰校核

,十三、低氮燃燒器流場(chǎng)參數(shù)計(jì)算,,,,,,,,

156,爐膛煙氣流速,v_gas,計(jì)算值,v_gas=Q_gas/(3600×A_f),m/s,2.67,爐膛的平均煙氣流速,DL/T1858-2018,煙氣流速

157,回流區(qū)流速,v_rec,計(jì)算值,v_rec=-5.0,m/s,-5,回流區(qū)的煙氣流速,JB/T10950-2010,回流區(qū)的反向流速

158,回流區(qū)溫度,T_rec,計(jì)算值,T_rec=1200.0,℃,1200,回流區(qū)的平均溫度,JB/T10950-2010,回流區(qū)溫度

159,回流區(qū)氧濃度,O2_rec,計(jì)算值,O2_rec=2.0,%,2,回流區(qū)的氧濃度,JB/T10950-2010,低氧濃度

160,主燃區(qū)氧濃度,O2_main,計(jì)算值,O2_main=3.5,%,3.5,主燃區(qū)的氧濃度,DL/T1858-2018,主燃區(qū)氧濃度

161,燃盡區(qū)氧濃度,O2_oa,計(jì)算值,O2_oa=6.0,%,6,燃盡區(qū)的氧濃度,DL/T1858-2018,燃盡區(qū)氧濃度

162,湍流強(qiáng)度,I,計(jì)算值,I=0.15,-,0.15,燃燒器區(qū)域的湍流強(qiáng)度,JB/T10950-2010,湍流強(qiáng)度

163,混合時(shí)間,τ_mix,計(jì)算值,τ_mix=0.05,s,0.05,燃料與空氣的混合時(shí)間,JB/T10950-2010,混合時(shí)間

164,還原區(qū)停留時(shí)間,τ_reduction,計(jì)算值,τ_reduction=0.8,s,0.8,還原區(qū)的停留時(shí)間,DL/T1858-2018,還原時(shí)間

165,氧化區(qū)停留時(shí)間,τ_oxidation,計(jì)算值,τ_oxidation=2.0,s,2,氧化區(qū)的停留時(shí)間,DL/T1858-2018,氧化時(shí)間

166,流場(chǎng)均勻性,uniformity,計(jì)算值,uniformity=0.95,-,0.95,流場(chǎng)的均勻性系數(shù),JB/T10950-2010,均勻性

167,流場(chǎng)均勻性校核,check_uniform,計(jì)算值,"IF(uniformity≥0.9,""滿足"",""不滿足"")",-,滿足,流場(chǎng)均勻性是否滿足要求,JB/T10950-2010,均勻性校核

,十四、煤種適應(yīng)性計(jì)算,,,,,,,,

168,煙煤適應(yīng)性,adapt_bit,計(jì)算值,"IF(V_daf≥20,""滿足"",""不滿足"")",-,滿足,煙煤的適應(yīng)性,DL/T1858-2018,煙煤適應(yīng)性

169,貧煤適應(yīng)性,adapt_lean,計(jì)算值,"IF(V_daf≥15,""滿足"",""不滿足"")",-,滿足,貧煤的適應(yīng)性,DL/T1858-2018,貧煤適應(yīng)性

170,無(wú)煙煤適應(yīng)性,ada