《苹果冷藏库设计方案 》
苹果冷藏库设计方案苹果冷藏库设计方案- 1 -目录目录一、设计基本资料1.设计目 的································· ·························22.设计项 目································· ·························23.冷库室内外设计参 数································· ···············2二、冷库热工负荷计算1.冷库整体设计要 求································· ·················22.冷库尺寸计 算································· ·····················23. 冷库的长宽计 算································· ·················34. 库板厚度计 算································· ···················3三、库房冷负荷的计算1.计算围护结构耗冷量 Q1································· ···········3 2.计算货物耗冷量 Q2································· ···············4四、设备选型的依据1. 压缩机组的选 型································· ·················42. 冷风机的选- 2 -型································· ····················73. 膨胀阀的选 型································· ····················94. 冷库电控箱的选 型································· ···············105. 库门选 型································· ·······················116.库灯的选 择································· ······················12五、备材料明细 表······························· ···················13六、图纸1. 冷库房模 型································· ·····················14 2. 冷库平面 图································· ·····················143. 制冷原理 图································· ·····················15 4. 电气控制 图································· ·····················15七、结 论································· ·························16八、参考文献 ·································· ···················16- 3 -一、设计基本资料一、设计基本资料1.设计目的：通过本设计初步了解建筑与设备工程的设计内容，了解设计计算的步骤和方法，懂得识图和制图，学会查找设计规范和设计手册。通过设计掌握有关冷库制冷工艺设计的内容、程序及基本原则和制冷工艺设计计算方法并提高绘制设计图纸的能力。2.设计项目：30t 苹果冷库设计3 .冷库室内外设计参数库房名称 相对湿度 温度苹果冷库 85%0 柳州室外 84%30.3 地坪85%25 二、冷库热工负荷计算二、冷库热工负荷计算1.冷库的整体设计要求设计一个水果冷库，产品为晚熟苹果，进库温度 25，库温0，库容为 40%，每天的进货量是 10t/24h，采用组拼装式冷库，制冷系统为氟利昂制冷系统。苹果的冷藏条件：贮藏温度 1相对湿度为 85%-90%O2的含量为 1.5%CO2的含量为 1%贮藏期为 120 天- 4 -2.冷库尺寸计算根据公式：吨位=冷库容积×库容率×食品比重 式中 G冷库计算吨位（t） ；V1冷库的容积（m3） ；库容率；s食品的比重（t/ m3）根据冷库设计规范表 3.0.5 查得水果的密度为 s=230 kg/m3根据冷库设计规范表 3.0.3 初步估计其 =0.4 得到冷库的公称体积 V=326 m3冷库高度的确定：净高为 3.0m。 3.冷库的长宽计算因冷库库板采用彩钢板，维护库板的尺寸为1000×100×4000（mm） ，屋顶和地面库板尺寸为1000×100×7000（mm） ，因此，冷库的长为：22m，宽为 5m。三、三、 库房冷负荷计算库房冷负荷计算总耗冷量=（围护结构耗冷量 Q1+货物耗冷量 Q2）×1.21.围护结构耗冷量 Q1其中，聚苯乙烯的 =0.036W/m·c =100mm冷库库顶的面积为 Fa，库体四周的面积为 Fb，地坪的面积为 Fc库顶耗冷量 Qa=1.6××Fa×（twtn）- 5 -=1.6×0.036/100mm×(25×5) ×(26-0)=1647.36W库体四周耗冷量 Qb=1.3××Fb×(tw-tn)=1.3×0.36×(2×25×3+2×5×3) ×26=2190.24W冷库地坪耗冷量 Qc=×Fc×(tw-tn) = 0.36×（25×5）×26=1029.6W围护结构耗冷量 Q1=QaQbQc=4867.2W=4.87KW2. 货物耗冷量 Q2苹果的耗冷量=每次的进货量×焓差÷每次冷加工时间+降温过程呼吸热+冷藏时呼吸热式中，每天的进货量为 10t，进出货的温度为 26和 0，冷加工的时间为 24h,查表 A-3 食品的比焓和 A-4 水果与蔬菜的呼吸热可得苹果的 26的焓值为 373kJ，0焓值为 279.5 kJ;26的呼吸热为 96Wt，0的呼吸热为 10 Wt。货物耗冷量 Q2= ×30%×(373 kJ-279.5 kJ)÷(24×3600)s ×30%×(96 Wt10 Wt) 2 ×70%×10 Wt =10.87 KW0.53KW0.2 KW=11.62 KW总耗冷量 Q=(围护结构耗冷量 Q1货物耗冷量 Q2) ×1.2=(4.87KW11.62 KW) ×1.2=19.79KW四、设备的选型四、设备的选型1.压缩机组的选型比泽尔压缩机制冷量大、可以多种制冷剂、能量调节广泛有效- 6 -的减少运行费用、使用寿命长等优点。库房的制冷量为 19.79kw,所以选择比泽尔风冷冷凝压缩机组HM-4TCS-8.2/FL（图 1），制冷量为 20.21kw。比泽尔风冷冷凝压缩机组技术数据 (表 1)表表 1 1 比泽尔风冷冷凝压缩机组技术数据（比泽尔风冷冷凝压缩机组技术数据（C4C4 系列）系列）冷凝机组型号HM-4TCS-8.2/FL HM-4VCS-10.2/FL HM-4NCS-12.2/FLHM-4PCS-15.2/FL HM-4NCS-20.2/FL (相对匹数)8HP 低温10HP 中高温12HP 低温15HP 中高温20HP 中高温冷凝机组名义输入 KW6.58101220 电 源380V 50Hz380V 50Hz380V 50Hz380V 50Hz380V 50Hz 最大工作电流 A1923283434 工 质R22R22R22R22R22型 号4TCS-8.24VCS-10.24NCS-12.24PCS-15.24NCS-20.2 压 名义输入 HP/KW7.5/5.510/7.512.5/9.215/1120/15排气管径11/8 (28)7/8 (22) 11/8 (28) 11/8 (28) 11/8 (28) 缩 吸气管径13/8 (35)11/8 (28)13/8 (35)15/8 (42)15/8 (42)冷 冻 油 量 L2.62.62.62.62.6 机 PTC 曲轴箱加热120W/220V120W/220V120W/220V120W/220V120W/220V冷却方式风冷风冷风冷风冷缸顶风机 尺寸 A×B×C mm631×306×385631×306×385631×306×385652×305×385652×305×385型 号FN-80FN-100FN-130FN-130FN-150 冷 名义换热量 W2440024400382003820047200风机类型外转子外转子外转子外转子外转子凝 输 出 N0×W4×150W4×150W4×180W4×180W4×250W电机极数/电压4 极/380V4 极/380V4 极/380V4 极/380V4 极/380V器 风扇直径 mm350400400400450长×宽×高 mm1250×200×930 1250×200×1130 1250×200×1380 1250×200×13801250×250×1330 储液器 L1919232323 汽液分离器1 3/81 1/81 3/81 5/81 5/8 油分1 1/87/81 1/81 1/81 1/8 保 高低压压力开关DNS-D306XMDNS-D306XMDNS-D306XMDNS-D306XMDNS-D306XM机头电机保护开 关INT69VSINT69VSINT69VSINT69VSINT69VS护 储液器易熔塞7575757575 附 视液镜干燥过滤器电磁阀5 分螺口5 分螺口5 分螺口5 分螺口5 分螺口件 高低压力表- 7 -接液体出口inch(mm)5/8 (16)5/8 (16)5/8 (16)5/8 (16)5/8 (16)管气体入口inch(mm)13/8 (35)11/8 (28)13/8 (35)15/8 (42)15/8 (42)外形尺寸 长×宽× 高 mm1300×925×1030 1300×925×1030 1300×1100×1480 1400×1100×1480 1400×1150×1430冷凝温度 40制冷量 W/功率消耗 KW蒸发温度4TCS-8.24VCS-10.24NCS-12.24PCS-15.24NCS-20.212.5/42200/7.41/60900/10.6570600/13.15 压7.5/35500/7.32/51100/10.4559300/12.85 缩0/27000/6.97/38850/9.8845000/12.06 机- 527100/8.3922250/6.6136650/3665031950/9.3537000/11.34 性- 1022100/7.7718110/6.1729950/10.6025950/8.7230050/10.51 能- 1517840/7.1114530/5.6624150/9.6620800/8.0024050/9.58 参- 2014150/6.4211440/5.1019160/8.6616350/7.2118910/8.59 数- 2510900/5.768790/4.4814700/7.6612550/6.3614500/7.54- 308200/5.066540/3.8411040/6.669320/5.4910750/6.48
