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发酵罐热工设计计算

作者:发酵罐 时间:2018-04-11 08:40
发酵罐热工设计计算 一、计算依据 计采用A 3 刚作发酵罐材料,用8号槽钢做冷却夹套,分三段冷却,筒体二段,椎部一段,夹套工作压力为2.5kg/cm 2 冷媒为20%(V/V)酒精溶液,T 进 =-4℃,T 出 信息摘要:
发酵罐 热工设计计算 、计算依据 计采用A 3 刚作 发酵 罐材料,用8号槽钢做冷却夹套,分三段冷却,筒体二段,椎部段,夹套工作压力为2.5kg/cm 2 冷媒为20%(V/V)酒精溶液,T 进 =-4℃,T 出 为-2℃,麦汁发酵温度维持12℃(主要发酵

发酵罐热工设计计算

水果拉霸多人版 SHIYONGJUNYETIJUNZHONGJUYOUPEIYANGSHIJIANDUAN,ZAJUNWURANYUFOURONGYIYONGXIANWEIJISHUGUANCHA,JIEZHONGSUDUKUAI,JIEZHONGDAOZAIPEILIAOSHANGHOUMENGFAKUAI、CHILIAOKUAI、KANGZAJUNNENGLIQIANG、SHENGZHANGSUDUKUAI、PEIJUNSHIJIANDUAN、CHANLIANGGAODENGYOUDIAN。SUOYISHIYONGJUNJUNZHONGYETIFAJIAOJISHUCONG60NIANDAIKAISHIBIANYOURENKAISHITANSUO,ZHI80NIANDAIKAISHIYONGYUSHENGCHANSHIJIAN,DAOMUQIANWEIZHI,ZHUYAOHAISHISHIYONGDEZAIWEIMIEJUNQISHENGSHIFAJIAOGUAN,WOMENCHENGZHIWEIDAISHIYONGJUNYETIJUNZHONGFAJIAOSHEBEI。JINIANQIANYOUYUSHIYONGJUNGONGCHANGHUAZAIPEIDEFAZHAN,XIEYOUSHILIDECHANGJIACONGHANGUOYINJINSHIYONGJUNJUNZHONGYETIFAJIAOJISHU,ZHEISHIZHONGJIANGFAJIAOGUANZHENGTIFANGZHIYUDAXINGMIEJUNQIZHONGMIEJUN,RANHOUZAILENGQUEBINGYICHUMIEJUNQIZAIWUJUNCHENGDUHENGAODEHUANJINGZHONGJIEZHONG、PEIYANGDEFANGFA,WOMENCHENGZHIWEIDIERDAISHIYONGJUNYETIJUNZHONGFAJIAOSHEBEI。

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发酵罐热工设计计算

发酵罐热工设计计算

 

、JISUANYIJU

计采用A3刚作发酵罐材料,用8号槽钢做冷却夹套,分三段冷却,筒体二段,椎部段,夹套工作压力为2.5kg/cm2冷媒为20%(V/V)酒精溶液,T=-4℃,T为-2℃,麦汁发酵温度维持12℃(主要发酵5-6天,封头及筒体部分保温层厚度为200mm,椎底部分为98mm)

ER、ZONGFAJIAOREJISUAN

 

 

Q=q*v=119*70=8330kg/hr

 

 

水果拉霸多人版 qWEIMEILIFANGMIFAJIAOMAIZHIZAIZHUFAJIAOQIJIANMEIXIAOSHIDEFANGRELIANG;

 

 

vWEIFAJIAOMAIZHILIANG

1、LENGQUEJIATAOXINGHAOXUANZE

 

 

选取8号槽钢起截流面积为A=hb-截面积=8*4.3-10.24=24.16cm2

 

 

LENGQUEJILIULIANGWEI(SANDUANLENGQUE)

 

 

3*24.16*10-4*1=7.284*10-3m3/s

 

 

查得20%(V/V)酒精溶液Δt平=-3℃下的ρ=976kg/m3

 

 

Cρ水果拉霸多人版=1.04kcal/kg·℃

LENGQUEJIDELENGQUENENGLIWEI:

Q=7.248*103水果拉霸多人版*976*1.041*2*3400=49131.3kcal/hr

水果拉霸多人版 GUKEXUANQU8HAOGANGCAOWEILENGQUEJIATAO。

水果拉霸多人版 2、FAJIAOGUANLENGQUEMIANJIDEJISUAN

 

 

考虑生产过程中,随着技术的改进,工艺曲线可能更改,按目前我过工艺曲线看,日降温量较大的为13℃到5℃,为了将来工艺更改留下余量,设计取13-5=8℃为设计的日降温量,取0.6℃/hr为设计的小时降温量,则由Q=KAΔtm求得冷却面积。

水果拉霸多人版 2.1CHUANREXISHUKDEQUEDING

2.1.1醪液α1的计算

α1=0.64*C*=0.64*185*=185.3kcal/m2·h·℃

 

 

2.1.2冷却夹套的α2的计算

SHIRUNZHOUBIAN=80+(80+4*8.0)+2*(43-1)

de=(4*LIUTILIUDONGJIEMIANMIANJI)/SHIRUNZHOUBIAN

水果拉霸多人版 =204mm=20.4cm

de=4*24.16/20.4=4.74cm=0.0474m

水果拉霸多人版 20%(V/V)JIUJINGZAIDINGXINGWENDUt=(-4-2)/2=-3℃XIA

μ=5.05CP=5.05*103水果拉霸多人版Pa·s

λ=0.402kcal/hr·m·℃=0.468W/m·℃

Cp=1.041kcal/kg·℃=4.358*103J/kg℃

ρ=976kg/m2

水果拉霸多人版 μ=1m/s

Re=duρ/μ=9160=104

水果拉霸多人版 GUKESHIWEIQIANGZHITUANLIULIUDONGDEn=0.4

α2=0.023λ/d(Re)0.8(Cpμ/λ)0.4=1348.4kcal/hr·m·℃

水果拉霸多人版 YINWEIJISUANSHILENGQUEPANGUANWEIZHIGUANDE,XIANXIUZHENG:

α水果拉霸多人版=α(1+1.77d/R)

=1348.4*(1+12)*0.0474/1.829

水果拉霸多人版 =1410.3kcal/hr·m·℃

 

 

 

 

 

  1. 水果拉霸多人版  

    TONGTIBUFENCHUANREXISHUK

 

 

 

1/KA2=1/α1A1+Rs1/A1+b/λA2+1/α2A3+Rs2/A3

 

 

DAIRUSHUJUKEDE:

 

 

1/K=7.325*10-3

 

 

所以:K=136.5kcal/m2·℃

 

 

水果拉霸多人版 ZHU:hWEIJIASHEJIATAOGAODU(m)

水果拉霸多人版 3、ZHUIXINGGUANTONGTIXULENGQUEDERELIANG

1)醪液放热 Q=Q1 + Q2

Q1= 62110×0.055×146.6 = 4552.7kcal / hr

Q2水果拉霸多人版= 62110×0.9519×0.6 = 35473kcal / hr

所以,Q =Q1+Q2= 40026kcal / hr

2)WAIJIEYUGUANTIDECHUANRELIANG

a. 封头部分Q1= KF(t外平+t0附-t

DAIRUSHUJUDEKF=0L.2

Q1= KF(t外平+t0附-t

=2.02×(10%+1)×(32+8.5-5)

78.72kcal / hr

b. TONGTIBUFEN:

DAIRUSHUJU:

1/KF=1/αA1+ δ11A222A232A4+1/αA5

DE: KF = 15.67kcal/K·°C

Q2=KF(t外平+t0附-t

水果拉霸多人版 =1.1×15.6(32+8.5-5)

水果拉霸多人版 = 6119kcal/hr

4、TONGTILENGQUEMIANJIACHUDING

Q=KAΔtm

A=40716.8/136.5×11.3=26.4m2

ZELAOYEDELENGQUEFUHEWEI:

26.4/62110=0.425m2/T>0.3m3/T

水果拉霸多人版 GULENGQUEMIANJINENGGOUMANZUYAOQIU。

水果拉霸多人版 5、FAJIAOGUANLENGQUEMIANJIDEQUEDING

 

 

 

 

 

  1. 水果拉霸多人版  

    TONGTIBUFEN

 

由前面叙述可知,筒体部分相同的冷却段,选用8#槽钢筒体冷却段面积为26.4m2,则槽钢长=26.4/0.08=330

QUXIANGLINLIANGCAOGANGJIANJUWEI40mm

QUANCAOGANGZHANG:

l0=[(3.14×3.62)2+0.122]1/2= 11.367m

330mZHANGDECAOGANGKERAOQUANSHU330/11.367 ≈30QUAN

ZEERDUANGERAO15QUAN

LENGQUEDUANGAODUWEI:

水果拉霸多人版 15×(80+40)-40=1760mm

水果拉霸多人版 TONGTISHIJILENGQUEMIANJIWEI:

30×11.367×0.08=1.439m2/T

 

 

 

 

 

  1. 水果拉霸多人版  

    ZHUIDIBUFEN

 

ZHUITIBUFENLAOYELIANGWEI4.91×1.0484=5.32

水果拉霸多人版 ZHUITIBUFENLENGQUEMIANJIWEI

5.32×0.439=2.33m2

ZECAOGANGZHANGWEI2.33/0.08=29.1m

RAOZHIGAODUWEI1000mm

 

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文章标题:发酵罐热工设计计算

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