北京体彩网

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制冷机的选型方式

一、通过冷却水(油)进、出口温差来计算发热量

北京体彩网Q = SH x De x F x DT / 60 

Q:FARELIANGKW

北京体彩网SH:BIRESHUIDEBIREWEI4.2KJ/Kg*C (4.2QIANJIAOER/QIANKE*SHESHIDU)YOUDEBIREWEI1.97KJ/Kg*C (1.97QIANJIAOER/QIANKE *SHESHIDU)

北京体彩网De:BIZHONGSHUIDEBIZHONGlKg/L (1QIANKE/SHENG)YOUDEBIZHONG0.88Kg/L (0.88QIANKE/SHENG)

北京体彩网F:LIULIANGLPM (L/minSHENG/FENZHONG)

DT:LENGQUESHUI(YOU)JINCHUKOUWENCHA(CHUKOUWENDU-JINKOUWENDU)

ZHU:"/ 60"SHIYONGYUJIANGLIULIANGSHENG/FENBIANWEISHENG/MIAO;lkW = lkJ/s ;

LI1:LENGQUESHUIJINSHUIWEI15DU,CHUSHUI20DU,LIULIANG20SHENG/FENZHONG FARELIANGQ = 4.2 xl x 20 x (20-15) / 60 = 7KW XUANZELENGSHUIJILENGLIANGSHIKESHIDANGJIADA20%-50%

例2:冷却油进口为18度,出油26度,流量15升/分钟 发热量Q = 1.97x 0.88xl5x(26-18) /60 = 2.6KW 选择冷水(油)机冷量时可适当加大20%-50%

二、通过设备的功率、发热量估算

北京体彩网a、RUYONGYUZHUZHOULENGQUE,KEGENJUZHUZHOUDIANJIGONGLVDE30%GUSUANSUOXUZHILENGJIZUDELENGLIANG。

北京体彩网LI:15KWDIANJI,KEXUANPEI4.5kwHUO5.8kwLENGLIANGDEZHILENGJIZU;

b、注塑机可按每安士0.6KW冷量估算或每80吨3KW的制冷量来核算;

三、通过水(油)箱的温升来计算发热量 

Q = SH x De x V x DT / 60

Q:FARELIANGKW

北京体彩网SH:BIRESHUIDEBIREWEI4.2KJ/Kg*C (4.2QIANJIAOER/QIANKE*SHESHIDU)YOUDEBIREWEI1.97IO/Kg*C (1.97QIANJIAOER/QIANKE *SHESHIDU)

De:BIZHONGSHUIDEBIZHONGlKg/L (1QIANKE/SHENG)YOUDEBIZHONG0.88Kg/L (0.88QIANKE/SHENG)

北京体彩网V: SHUIRONGLIANGL (SHENG)BAOKUOSHUIXIANGJIGUANLUZHONGDEZONGSHUIRONGLIANG

北京体彩网DT:SHUI(YOU)ZAIYIFENZHONGNEIDEZUIDAWENSHENG

ZHU:60"SHIYONGYUJIANGWENSHENGSHESHIDU/FENBIANWEISHESHIDU/MIAO;lkW = lkJ/s;

北京体彩网ZHUYI:CELIANGSHI,SHUI(YOU)XIANGDEWENDUXULVEDIYUHUANJINGWENDU;BINGQIESHEBEICHUYUZUIDADEFUHEXIAGONGZUO。

北京体彩网LI:SHUIXIANGRONGJI3000LZUIDADESHUIWEN0.6DU/FENZHONG 

北京体彩网FARELIANGQ = 4.2 x 1 x 3000 x 0.6 / 60 = 126KW

选择冷水机冷量时可适当加大20%-50% ;

补充说明:

北京体彩网1、LENGSHUIJIDEZHILENGLIANGYUHUANJINGWENDUJICHUSHUIWENDUBUTONGERBIANHUA;

2、SHEBEISHIJIFARELIANGYIHUIYINWEIBUTONGDEGONGJIAN、MOJU、CANSHUDENGFASHENGBIANHUA;

3、SHIYONGLENGSHUIJIHOUWENDUXIAJIANG,LIANJIEGUANLU、SHUIXIANG、YOUXIANG、MOJU、ZHUZHOU、SHEBEIBIAOMIANWENDUHUIDIYUHUANJINGWENDU,YINCIHUIXI SHOURELIANGDAOZHIFUHEZENGDA;

4、ZAIGONGYELENGQUEDESHIJIYINGYONGZHONGHENDUOQINGKUANGSHIWUFAZHUNQUELIYONGYISHANGFANGFAJISUANDE,ZHEISHIZHINENGTONGGUOJINGYANSHUJU、TONGLEISHEBEILEIBIDENGFANGFAGUSUAN。

5、RENHEDEJISUANFANGFADOUYOUKENENGHUICHUXIANPIANCHA,YIZHISHIJIXUANYONGDEZHILENGJIZUGUODAHUOGUOSHAO,SUOYISHANGMIANDEFANGFAJINZUOCANKAO;


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