焦化廠脫硫塔設(shè)計(jì)計(jì)算,,,,,,,,,

序號(hào),計(jì)算項(xiàng)目,符號(hào)表示,參數(shù)來源,計(jì)算公式,國際單位,計(jì)算結(jié)果,參數(shù)說明,規(guī)范依據(jù),其他說明

一、煙氣參數(shù)計(jì)算,,,,,,,,,

1,煙氣流量,Q,設(shè)計(jì)值,150000,Nm3/h,150000.00,標(biāo)準(zhǔn)狀態(tài)下煙氣流量,工藝設(shè)計(jì),130萬噸焦化廠

2,SO?入口濃度,C_in,設(shè)計(jì)值,3000,mg/Nm3,3000.00,標(biāo)準(zhǔn)狀態(tài)下SO?濃度,環(huán)保要求,需脫硫處理

3,煙氣溫度,T,設(shè)計(jì)值,120,℃,120.00,入口煙氣溫度,工藝參數(shù),焦?fàn)t煙氣溫度

4,煙氣壓力,P,設(shè)計(jì)值,-200,Pa,-200.00,入口煙氣壓力,系統(tǒng)設(shè)計(jì),負(fù)壓運(yùn)行

5,煙氣密度,ρ_g,計(jì)算值,1.293×(273/(273+T)),kg/m3,0.90,煙氣密度,理想氣體,標(biāo)準(zhǔn)狀態(tài)修正

6,煙氣流量,Q_s,計(jì)算值,Q/3600,m3/s,41.67,煙氣流量,單位換算,立方米/秒

7,SO?質(zhì)量流量,m_SO2,計(jì)算值,C_in×Q/1000000,kg/h,450.00,SO?質(zhì)量流量,質(zhì)量計(jì)算,濃度×流量

8,SO?摩爾流量,n_SO2,計(jì)算值,m_SO2/64.06,kmol/h,7.02,SO?摩爾流量,摩爾計(jì)算,質(zhì)量/摩爾質(zhì)量

9,煙氣濕度,H,設(shè)計(jì)值,8,%,8.00,煙氣相對(duì)濕度,環(huán)境參數(shù),焦?fàn)t煙氣特性

10,煙氣含塵量,C_dust,設(shè)計(jì)值,50,mg/Nm3,50.00,煙氣含塵濃度,除塵效果,預(yù)處理后

二、脫硫塔尺寸計(jì)算,,,,,,,,,

11,空塔流速,u,設(shè)計(jì)值,3.5,m/s,3.50,塔內(nèi)煙氣流速,流體力學(xué),推薦值3.5m/s

12,塔體直徑,D,設(shè)計(jì)值,4.0,m,4.00,脫硫塔內(nèi)徑,結(jié)構(gòu)設(shè)計(jì),標(biāo)準(zhǔn)系列

13,塔體高度,H_total,設(shè)計(jì)值,25.0,m,25.00,脫硫塔總高度,結(jié)構(gòu)設(shè)計(jì),含基礎(chǔ)

14,填料層高度,H_packing,設(shè)計(jì)值,12.0,m,12.00,填料層總高度,傳質(zhì)設(shè)計(jì),分段布置

15,噴淋層數(shù),n_spray,設(shè)計(jì)值,4,層,4.00,噴淋系統(tǒng)層數(shù),噴淋設(shè)計(jì),雙向螺旋噴嘴

16,噴淋層間距,S_spray,設(shè)計(jì)值,2.0,m,2.00,噴淋層間距,結(jié)構(gòu)設(shè)計(jì),均勻分布

17,塔體橫截面積,A_tower,計(jì)算值,π×(D/2)2,m2,12.57,塔體橫截面積,幾何計(jì)算,圓形面積

18,實(shí)際煙氣流速,u_actual,計(jì)算值,Q_s/A_tower,m/s,3.32,實(shí)際煙氣流速,流速計(jì)算,流量/面積

19,氣體停留時(shí)間,t_residence,計(jì)算值,H_packing/u_actual,s,3.62,氣體停留時(shí)間,停留時(shí)間,高度/流速

20,噴淋系統(tǒng)高度,H_spray,計(jì)算值,(n_spray-1)×S_spray,m,6.00,噴淋系統(tǒng)高度,高度計(jì)算,間距總和

21,塔體容積,V_tower,計(jì)算值,A_tower×H_total,m3,314.16,塔體總?cè)莘e,容積計(jì)算,面積×高度

22,填料段容積,V_packing,計(jì)算值,A_tower×H_packing,m3,150.80,填料段容積,容積計(jì)算,面積×高度

23,流速偏差,Δu,計(jì)算值,|u_actual-u|/u×100,%,5.26,流速偏差,偏差計(jì)算,控制≤5%

24,流速判斷,J_velocity,判斷值,"IF(Δu≤5,""滿足"",""不滿足"")",,不滿足,流速是否滿足,流速校核,偏差≤5%

三、脫硫效率計(jì)算,,,,,,,,,

25,設(shè)計(jì)脫硫效率,η_design,設(shè)計(jì)值,95,%,95.00,設(shè)計(jì)脫硫效率,環(huán)保要求,≥95%

26,SO?出口濃度,C_out,計(jì)算值,C_in×(1-η),mg/Nm3,150.00,SO?出口濃度,濃度計(jì)算,排放標(biāo)準(zhǔn)≤150mg/Nm3

27,SO?脫除量,m_remove,計(jì)算值,m_SO2×η,kg/h,427.50,SO?脫除量,質(zhì)量計(jì)算,入口×效率

28,鈣硫比,Ca/S,設(shè)計(jì)值,1.1,,1.10,鈣硫比,工藝設(shè)計(jì),1.05~1.15

29,石灰石消耗量,m_limestone,計(jì)算值,m_SO2×Ca/S×100/64,kg/h,773.44,石灰石消耗量,質(zhì)量計(jì)算,100/64為摩爾質(zhì)量比

30,液氣比,L/G,設(shè)計(jì)值,10,L/m3,10.00,液氣比,工藝設(shè)計(jì),8~12L/m3

31,漿液循環(huán)量,Q_slurry,計(jì)算值,L/G×Q/1000,m3/h,1500.00,漿液循環(huán)量,流量計(jì)算,液氣比×煙氣量

32,pH值,pH,設(shè)計(jì)值,5.5,,5.50,漿液pH值,工藝控制,5.2~5.8

33,氧化空氣量,Q_air,設(shè)計(jì)值,1500,Nm3/h,1500.00,氧化空氣量,氧化設(shè)計(jì),過量系數(shù)1.5

34,濃度偏差,ΔC,計(jì)算值,|C_out-150|/150×100,%,0.00,濃度偏差,偏差計(jì)算,排放標(biāo)準(zhǔn)

35,濃度判斷,J_concentration,判斷值,"IF(C_out≤150,""滿足"",""不滿足"")",,不滿足,濃度是否滿足,排放校核,≤150mg/Nm3

四、填料層設(shè)計(jì)計(jì)算,,,,,,,,,

36,填料類型,Type,設(shè)計(jì)值,鮑爾環(huán),,鮑爾環(huán),填料類型,傳質(zhì)設(shè)計(jì),高效填料

37,填料尺寸,d_packing,設(shè)計(jì)值,50,mm,50.00,填料尺寸,結(jié)構(gòu)設(shè)計(jì),標(biāo)準(zhǔn)系列

38,比表面積,a,查表值,110,m2/m3,110.00,填料比表面積,填料性能,廠家提供

39,空隙率,ε,查表值,0.95,,0.95,填料空隙率,填料性能,體積空隙率

40,傳質(zhì)系數(shù),K_ya,查表值,0.03,kmol/(m3·h),0.03,體積傳質(zhì)系數(shù),傳質(zhì)性能,經(jīng)驗(yàn)值

41,傳質(zhì)單元數(shù),NOG,計(jì)算值,3.5,,3.50,傳質(zhì)單元數(shù),傳質(zhì)計(jì)算,理論計(jì)算

42,傳質(zhì)單元高度,HOG,計(jì)算值,3.4,m,3.40,傳質(zhì)單元高度,傳質(zhì)計(jì)算,經(jīng)驗(yàn)公式

43,安全系數(shù),SF,設(shè)計(jì)值,1.1,,1.10,安全系數(shù),安全設(shè)計(jì),考慮老化

44,實(shí)際填料層高度,H_actual,計(jì)算值,HOG×NOG×SF,m,13.09,實(shí)際填料層高度,高度計(jì)算,安全系數(shù)修正

45,填料段數(shù),n_segments,計(jì)算值,ceil(H_actual/4),段,4.00,填料段數(shù),結(jié)構(gòu)設(shè)計(jì),每段≤4m

46,每米壓力損失,ΔP/m,查表值,150,Pa/m,150.00,每米填料壓力損失,流體力學(xué),廠家提供

47,總壓力損失,ΔP_total,計(jì)算值,H_actual×ΔP/m,Pa,1963.50,填料層總壓力損失,壓力計(jì)算,高度×單位損失

48,壓力損失判斷,J_pressure,判斷值,"IF(ΔP_total≤1000,""滿足"",""不滿足"")",,不滿足,壓力損失是否滿足,阻力校核,≤1000Pa

五、噴淋系統(tǒng)設(shè)計(jì)計(jì)算,,,,,,,,,

49,噴嘴類型,Type,設(shè)計(jì)值,雙向螺旋噴嘴,,雙向螺旋噴嘴,噴嘴類型,噴淋設(shè)計(jì),高效霧化

50,單噴嘴流量,Q_nozzle,設(shè)計(jì)值,30,m3/h,30.00,單噴嘴流量,噴嘴設(shè)計(jì),標(biāo)準(zhǔn)系列

51,噴嘴工作壓力,P_nozzle,設(shè)計(jì)值,0.2,MPa,0.20,噴嘴工作壓力,壓力設(shè)計(jì),0.15~0.25MPa

52,噴嘴密度,D_nozzle,設(shè)計(jì)值,15,個(gè)/m2,15.00,噴嘴密度,噴淋設(shè)計(jì),均勻覆蓋

53,霧化粒徑,d_droplet,設(shè)計(jì)值,100,μm,100.00,霧化粒徑,霧化性能,50~200μm

54,噴淋覆蓋率,Coverage,設(shè)計(jì)值,220,%,220.00,噴淋覆蓋率,覆蓋設(shè)計(jì),≥200%

55,每層噴嘴數(shù)量,n_nozzle_per,計(jì)算值,ceil(A_tower×D_nozzle),個(gè),189.00,每層噴嘴數(shù)量,數(shù)量計(jì)算,向上取整

56,總噴嘴數(shù)量,n_nozzle_total,計(jì)算值,n_nozzle_per×n_spray,個(gè),756.00,總噴嘴數(shù)量,數(shù)量計(jì)算,層數(shù)×每層數(shù)量

57,所需泵流量,Q_pump,計(jì)算值,n_nozzle_total×Q_nozzle,m3/h,22680.00,所需泵流量,流量計(jì)算,噴嘴總流量

58,噴嘴直徑,d_nozzle,計(jì)算值,√(4×Q_nozzle/(π×v))×1000,mm,1954.41,噴嘴出口直徑,直徑計(jì)算,v為出口流速

59,覆蓋率判斷,J_coverage,判斷值,"IF(Coverage≥200,""滿足"",""不滿足"")",,滿足,覆蓋率是否滿足,覆蓋校核,≥200%

六、鋼結(jié)構(gòu)強(qiáng)度計(jì)算,,,,,,,,,

60,鋼材密度,ρ_steel,查表值,7850,kg/m3,7850.00,碳素結(jié)構(gòu)鋼密度,材料性能,GB/T700-2006

61,屈服強(qiáng)度,σ_s,查表值,235,MPa,235.00,Q235鋼屈服強(qiáng)度,材料性能,常溫屈服強(qiáng)度

62,許用應(yīng)力,σ_allow,選用值,170,MPa,170.00,鋼結(jié)構(gòu)許用應(yīng)力,強(qiáng)度設(shè)計(jì),安全系數(shù)1.38

63,設(shè)計(jì)風(fēng)速,v_wind,設(shè)計(jì)值,25,m/s,25.00,設(shè)計(jì)風(fēng)速,荷載設(shè)計(jì),50年一遇

64,地震烈度,Seismic,設(shè)計(jì)值,8,度,8.00,設(shè)計(jì)地震烈度,抗震設(shè)計(jì),8度設(shè)防

65,塔體重量,W_tower,設(shè)計(jì)值,45,t,45.00,塔體鋼結(jié)構(gòu)重量,重量計(jì)算,不含填料

66,填料重量,W_packing,設(shè)計(jì)值,15,t,15.00,填料層重量,重量計(jì)算,干重

67,漿液重量,W_liquid,設(shè)計(jì)值,20,t,20.00,漿液重量,重量計(jì)算,運(yùn)行狀態(tài)

68,總重量,W_total,計(jì)算值,W_tower+W_packing+W_liquid,t,80.00,設(shè)備總重量,重量計(jì)算,自重+載荷

69,風(fēng)力,F_wind,計(jì)算值,0.613×v_wind2×H×D,N,38312.50,水平風(fēng)力,風(fēng)荷載,體型系數(shù)1.2

70,地震力,F_seismic,計(jì)算值,W_total×g×0.2,N,156.96,水平地震力,地震荷載,加速度0.2g

71,最大彎矩,M_max,計(jì)算值,"max(F_wind,F_seismic)×H/2",N·m,478906.25,基礎(chǔ)彎矩,彎矩計(jì)算,最大水平力×力臂

72,所需截面模量,W_req,計(jì)算值,M_max/σ_allow,m3,0.00,所需截面模量,強(qiáng)度計(jì)算,彎矩/許用應(yīng)力

73,強(qiáng)度判斷,J_strength,判斷值,"IF(M_max≤W_actual×σ_allow,""滿足"",""不滿足"")",,滿足,強(qiáng)度是否滿足,強(qiáng)度校核,≤許用應(yīng)力

七、系統(tǒng)壓力損失計(jì)算,,,,,,,,,

74,入口壓力損失,ΔP_inlet,設(shè)計(jì)值,150,Pa,150.00,入口壓力損失,流體力學(xué),局部阻力

75,出口壓力損失,ΔP_outlet,設(shè)計(jì)值,100,Pa,100.00,出口壓力損失,流體力學(xué),局部阻力

76,填料層壓力損失,ΔP_packing,設(shè)計(jì)值,1200,Pa,1200.00,填料層壓力損失,流體力學(xué),主要阻力

77,噴淋層壓力損失,ΔP_spray,設(shè)計(jì)值,200,Pa,200.00,噴淋層壓力損失,流體力學(xué),4層總和

78,除霧器壓力損失,ΔP_demister,設(shè)計(jì)值,150,Pa,150.00,除霧器壓力損失,流體力學(xué),兩級(jí)除霧

79,煙道壓力損失,ΔP_duct,設(shè)計(jì)值,300,Pa,300.00,煙道壓力損失,流體力學(xué),總煙道損失

80,系統(tǒng)總壓力損失,ΔP_system,計(jì)算值,Σ各部分損失,Pa,2100.00,系統(tǒng)總壓力損失,壓力計(jì)算,所有損失總和

81,壓力損失判斷,J_system,判斷值,"IF(ΔP_system≤1500,""滿足"",""不滿足"")",,不滿足,系統(tǒng)壓力損失是否滿足,阻力校核,≤1500Pa

八、綜合判斷,,,,,,,,,

82,流速要求,J_velocity,判斷值,,,不滿足,流速是否符合要求,流體設(shè)計(jì),偏差≤5%

83,濃度要求,J_concentration,判斷值,,,不滿足,排放濃度是否符合要求,環(huán)保要求,≤150mg/Nm3

84,填料壓力損失要求,J_pressure,判斷值,,,不滿足,填料壓力損失是否符合要求,