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冷冻集装箱由于箱体隔热壁中存在金属构架

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冷冻集装箱由于箱体隔热壁中存在金属构架

发布日期:2015-04-14 17:50 来源:http://bch55.com 点击:

365竞彩     LENGDONGJIZHUANGXIANGYOUYUXIANGTIGEREBIZHONGCUNZAIJINSHUGOUJIA,SHISHUYUZUZHIBUJUNYUNDEJIEGOU,YINCIBUNENGZHIJIEYUNYONGSHANGSHUGONGSHI。ZHEISHI,YOUYOUYUCUNZAIZHESUOWEI“REQIAO”DEYINGXIANG,SUOYI,QICHUANREJISUANJIANGBISHANGSHUJISUANFUZADEDUO。DUIYUDUOCENGBUJUNYUNDEGEREBI,DANGQIZHONGYOUYIXIAOBUFENDEGEREXINGNENGJIAOQITABUFENCHADEHENDUOSHI,GEREBIDEZONGCHUANRELIANGJIUHUIDADATIGAO,ZHEIGEBUFENJIUCHENGWEI“REQIAO”(HUOLENGQIAO),LIRUXIANGTIDEGANGGUJIABUFEN。DANGGOUCHENG“REQIAO”DEJINSHUWUTICHUANGUOGEREBISHI,ZHEIZHONG“REQIAO”ZECHENGWEI“CHUANTOUREQIAO”。ZAICHUXIANREQIAOERXINGCHENGRELIUDUANLUDEQINGKUANGXIA,QIWENDUFENBUSHISANWEIKONGJIANHUOERWEIPINGMIANWENTI,BUNENGANYIWEIWENTAIWENDUCHANGLAIYANJIU。CONGSHUXUEDEGUANDIANLAIKAN,WENDUCHANGHEDIANCHANGYIYANG,DOUKEYIYONGLAPULASIFANGCHENGSHILAIMIAOSHU。RUZAIPINGMIANRELIUZHONG,RELIUHEDENGWENXIANGOUCHENGCHUIZHIDEWANG,ZHEISHI,LAPULASIFANGCHENGSHIKEYIXIECHENG:

 

SHIZHONG    t——WENDU;

        x、y——CHUIZHIPINGMIANZUOBIAO。

JIYUDUILAPULASIFANGCHENGSHIDEYANJIU,DUIREQIAOYINQIDERELIUDUANLU,KEYONGYIREDIANXIANGSIDESHIYANFANGFAWEIYIJUDEYUANRELIUFAJINXINGJISUAN。

365竞彩            

365竞彩YUANRELIUFAJISUANSHIJIYUXIALIEJIASHE:

365竞彩(1)QIANZAIYIXINGGANG、CAOGANGDENGYIBANNEIBUDEGERECAILIAODEREZUBUJI;

365竞彩(2)SUOYOUYUWAICENGGANGBANXIANGLIANDEJINSHU,QIWENDUYUGANGBANWENDUXIANGTONG,DANXIAOJINSHULINGJIANDEDAOREXINGBUYUKAOLV;

(3)RELIUPIANXIEHOUSUOTONGGUODELUJINGSHIYUANHU;

(4)BUTONGCAILIAOJIANXIANGHUMIJIE。

YISHANGJIADINGDOUKEYIZAOCHENGWUCHA,DANYOUYUQIZHONGYIXIEJIADINGZAOCHENGDEWUCHAPIANYUZENGJIAREZU,ERLINGYIXIEZEPIANYUJIANSHAOREZU,YINCI,ZONGHESHIYANJIEGUODAZHIXIANGFU。

JISUANSHI,JIANGJIEGOUFENCHENGRUOGANQUYU,DANDUYANJIUGEQUYUDECHUANREQINGKUANG。TU3.2WEIYIDIANXINGJIEGOUYONGYUANRELIUFADEJISUANJIANTU。

ZAIJISUANZHIQIAN,XIANYINRUKFZHIDEGAINIAN,SUOWEIKFZHI,JIZHILIANGCEMIANDEWENCHAWEI1℃SHI,TONGGUOFPINGFANGMIMIANJISHANGDERELIANG,YONG LAIBIAOSHI,JI 。BINGSHEGERECAILIAODEDAOREXISHUWEI ,GANGCAIDEDAOREXISHUWEI 。

DIⅠQU:KUANDUWEIYIXINGGANGDEKUANDUb,ANJIASHE1,ZEZHEIYIQUKEANGONGSHI(2—3b)LAIJISUAN,QIKFZHIYONG LAIBIAOSHI:

 

RUQUGEREBIDEZHANGDU(CHUIZHIYUJIEMIANDEZHANGDU)WEIYIMI,ZEDIⅠQUDEMIANJIF=b×1m2,YINCI:

                    

365竞彩DIⅡQU:ANJIASHE1,ZERELIUCONGYIXINGGANGDEBIANYUANXIANGYOUYANYUANHUFANGXIANGTONGGUOCAILIAODAODAA—AXIANSHANG,ZAICHUIZHIYUA—AXIANERZHIXIANLIUDONG。ZAIZHEIZHONGQINGKUANGXIA,RELIUDAXIAOSHIZAIBIANHUADE,QIECONGZUODAOYOUZHUJIANJIANXIAO。JIADINGZHEIYIQUDERELIUSHIXIANZHIZAIBENQUYOUBIANDEZHONGDIANYINEI,QIERELIULIUGUODELUXIAN——YUANHU,QIBANJINGWEIr,ZE

(1) 冷冻集装箱热流是在r=0至r= 的范围内流动。 是根据从隔热壁面传出的热流的热阻和从已型钢边缘沿圆弧线传出的热流的热阻相等的条件来确定的,即

                          

GU                       r= 

(2) 365竞彩热流在隔热材料中按圆弧通过时,其热阻随半径r的变化而变化,即

                          

(3) 365竞彩热阻在A—A线以下的热阻是不变的,即 

(4) 热流通过钢制内包板的热阻是固定的,即 

CIQUJIANDEKFZHIYONG BIAOSHI。

                    

JIFENHOUDE:           

365竞彩DIⅢQU:RELIUPINGXINGXIANGXIALIUDONG,ANSHI(2—3c),QIKFZHIYONG LAIBIAOSHI:

                     

 WEIBENQUKUANDU。

365竞彩DIⅣQU:RELIUYANZUOXIANGGANGLIANGLIUDONG,HEDIⅡQUTONGYANGDEFENXI。QIKFZHIYONG BIAOSHI,DE

 

365竞彩DIⅤQU:RELIUCONGYIXINGGANGXIANGZUOYANYUANHUFANGXIANGJINGGUOGANGLIANGHEGERECAILIAODAODAA—AXIAN,ZAICHUIZHIYUA—AXIANZAIGERECAILIAOZHONGLIUDONG。ZHEIYIQUDEQUJIANCONGcDAOg,QIKFZHIYONG LAIBIAOSHI:

 

 

RUTU3.3,QUYIWEIYUANRELIU,QIHOUDUWEIdr,ZEBDCHUANGUOGANGLIANGERABCHUANGUOGERECAILIAO,XIANRANKEYIZHAODAORUXIAGUANXI:

 

 

DAIRUDE         

ZHANKAI WEIJISHU,DE

 

 

365竞彩FENBIEQUQIANLIANGXIANGHEQIANYIXIANGDAIRUDE

 

DIⅥQU:ZHIYOUDANGg< SHICAICUNZAI。


相关标签:20GP集装箱

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