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制冷機的選型方式

一、通過冷卻水(油)進、出口溫差來計算發熱量

Q = SH x De x F x DT / 60 

Q:FARELIANGKW

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

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

乐彩网F:LIULIANGLPM (L/minSHENG/FENZHONG)

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

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

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

例2:冷卻油進口為18度,出油26度,流量15升/分鐘 發熱量Q = 1.97x 0.88xl5x(26-18) /60 = 2.6KW 選擇冷水(油)機冷量時可適當加大20%-50%

二、通過設備的功率、發熱量估算

乐彩网a、RUYONGYUZHUZHOULENGQUE,KEGENJUZHUZHOUDIANJIGONGLVDE30%GUSUANSUOXUZHILENGJIZUDELENGLIANG。

LI:15KWDIANJI,KEXUANPEI4.5kwHUO5.8kwLENGLIANGDEZHILENGJIZU;

b、注塑機可按每安士0.6KW冷量估算或每80噸3KW的制冷量來核算;

三、通過水(油)箱的溫升來計算發熱量 

Q = SH x De x V x DT / 60

Q:FARELIANGKW

乐彩网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)

V: SHUIRONGLIANGL (SHENG)BAOKUOSHUIXIANGJIGUANLUZHONGDEZONGSHUIRONGLIANG

乐彩网DT:SHUI(YOU)ZAIYIFENZHONGNEIDEZUIDAWENSHENG

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

乐彩网ZHUYI:CELIANGSHI,SHUI(YOU)XIANGDEWENDUXULVEDIYUHUANJINGWENDU;BINGQIESHEBEICHUYUZUIDADEFUHEXIAGONGZUO。

LI:SHUIXIANGRONGJI3000LZUIDADESHUIWEN0.6DU/FENZHONG 

FARELIANGQ = 4.2 x 1 x 3000 x 0.6 / 60 = 126KW

選擇冷水機冷量時可適當加大20%-50% ;

補充說明:

乐彩网1、LENGSHUIJIDEZHILENGLIANGYUHUANJINGWENDUJICHUSHUIWENDUBUTONGERBIANHUA;

2、SHEBEISHIJIFARELIANGYIHUIYINWEIBUTONGDEGONGJIAN、MOJU、CANSHUDENGFASHENGBIANHUA;

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

4、ZAIGONGYELENGQUEDESHIJIYINGYONGZHONGHENDUOQINGKUANGSHIWUFAZHUNQUELIYONGYISHANGFANGFAJISUANDE,ZHESHIZHINENGTONGGUOJINGYANSHUJU、TONGLEISHEBEILEIBIDENGFANGFAGUSUAN。

乐彩网5、RENHEDEJISUANFANGFADOUYOUKENENGHUICHUXIANPIANCHA,YIZHISHIJIXUANYONGDEZHILENGJIZUGUODAHUOGUOSHAO,SUOYISHANGMIANDEFANGFAJINZUOCANKAO;


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