Lub tshuab nqus tsev iav khoom pawg

1. Vacuum laminated iav
Cov khoom lag luam tuaj yeem ua rau hauv ib qho khoom siv sandwich vaj huam sib luag los yog ob sab sandwich qauv. Lub thickness ntawm EVA zaj duab xis (tseem hu ua EN zaj duab xis) yog hais txog 0.4 thiab 0.7mm. Lub thickness ntawm polycarbonate yog hais txog 1.2 hli. Cov iav ntxiv yog xaiv ntawm 2.5mm thiab 5mm, thiab tempered iav kuj siv tau. Lwm txoj hauv kev los ua lub tshuab nqus tsev laminated iav yog nchuav cov kua nplaum ntawm ob txheej iav, thiab tom qab ntawd kub thiab ziab nws los ua lub tshuab nqus tsev laminated iav. Nws cov yam ntxwv yog kev nyab xeeb thiab tiv thaiv tub sab. Nyob rau tib lub sijhawm, nws cov coefficient hloov hluav taws xob, lub suab rwb thaiv tsev thiab cua siab kuj tseem zoo dua li cov iav lub tshuab nqus tsev qub, thiab tag nrho cov tuab kuj tseem nyias. Vim hais tias cov thermal conductivity ntawm iav thiab interlayer yog loj thiab kev koom tes rau thermal kuj yog me me, lub tshav kub hloov coefficient ntawm lub tshuab nqus tsev laminated iav tsuas yog me ntsis me dua li ntawm lub tshuab nqus tsev iav, tab sis lub suab rwb thaiv tsev kev ua tau zoo yuav zoo heev.
2. "Nqus + hollow" ua ke lub tshuab nqus tsev iav
Cov qauv no yog sib npaug rau kev kho lub tshuab nqus tsev vacuum ua ib daim iav thiab tom qab ntawd muab nws nrog ib qho ntxiv iav phaj los ua ib qho hollow. Lub thickness ntawm cov iav ntxiv feem ntau yog 5 lossis 6 hli tempered iav. Nws muab tso rau sab nraud ntawm lub tsev thiab tseem tuaj yeem ua rau hauv ob sab hollow ua ke ntawm "hollow + nqus + hollow".
Ntxiv nrog rau kev daws teeb meem kev nyab xeeb, qhov kev sib xyaw ua ke no kuj tseem txhim kho nws cov rwb thaiv tsev kub thiab lub suab rwb thaiv tsev. Tshwj xeeb, thaum lub iav phaj ntxiv kuj yog ua los ntawm Low-E tempered iav, lub tshav kub hloov coefficient yog ntxiv txo.
Thaum xam cov iav ua ke no, peb yuav tsum xub paub txog hauv paus ntsiab lus tias nyob rau hauv qhov kub thiab txias qhov sib txawv peb tab tom tham, lub wavelength ntawm thermal hluav taws xob nyob rau hauv qhov deb infrared 4-40μm band, thiab dej qab zib-lime iav yog Yeej opaque rau electromagnetic hluav taws xob nyob rau hauv lub band. Yog li ntawd, thaum xam cov hluav taws xob thermal tsis kam ntawm ntau tshaj peb daim iav, nws tsis tas yuav xav txog qhov cuam tshuam ntawm cov hluav taws xob dhau los ntawm thawj daim ntawm peb daim. Tsuas suav nws hauv ntu thiab tom qab ntawd ntxiv nws. Yog li yog tias tag nrho cov thermal tsis kam ntawm "nqus + hollow" ua ke yog R ua ke, nws tuaj yeem sau ua: R ua ke=R + R hollow
Qhov twg R yog qhov thermal tsis kam ntawm lub tshuab nqus tsev iav
R hollow yog lub thermal tsis kam ntawm hollow iav ua los ntawm ob daim iav nrog tib lub thickness raws li cov iav ntxiv
Kev suav R ua ke tsuas yog xam cov thermal kuj ntawm ib daim iav ntxiv, thiab qhov yuam kev me me heev.
3. "Nqus interlayer + hollow" qauv
Lub tshav kub hloov pauv coefficient ntawm cov qauv no zoo ib yam li cov lus hais saum toj no "nqus + hollow", tab sis qhov zoo ntawm cov qauv no yog tias ntxiv rau qhov tsis tshua muaj cua sov hloov coefficient thiab kev nyab xeeb, lub thickness yog thinner dua "hollow + nqus + hollow. ", thiab vim hais tias ob sab ntawm lub tshuab nqus tsev iav yog asymmetrical, lub resonance ntawm suab propagation yog txo, yog li lub suab rwb thaiv tsev kev ua tau zoo dua.
Ib qho piv txwv tau ua rau lub tsev qhia suab paj nruag hauv Beijing. Nws yog ib tug {{0}}.38EVA+4L+0.15V+4+12A+6 qauv nrog tag nrho thickness ntawm 32.5mm. Qhov hnyav lub suab rwb thaiv tsev ntsuas los ntawm Architectural Physics Laboratory ntawm Tsinghua University yog 42dB, uas tsuas yog 3dB deb ntawm qhov siab tshaj plaws ntawm cov suab rwb thaiv tsev ntawm lub teb chaws tus qauv rau iav ntaub thaiv phab ntsa. Lub tshav kub hloov coefficient tuaj yeem nyob nruab nrab ntawm 0.7-0.9Wm-2k{15}}, uas yog txiav txim los ntawm kev xaiv ntawm Low-E iav.
4. Muab ob npaug rau lub tshuab nqus tsev vacuum iav
Tag nrho cov thermal tsis kam ntawm cov qauv no tuaj yeem suav tias yog cov txiaj ntsig ntawm thermal resistance ntawm ob lub tshuab nqus tsev iav. Yog tias nws yog lub khob nqus tsev ntawm tib cov qauv, tag nrho cov thermal kuj yog ob zaug ntawm ib lub tshuab nqus tsev vacuum, uas yog, R ob lub tshuab nqus tsev=2R
Qhov twg R yog qhov thermal tsis kam ntawm ib lub tshuab nqus tsev iav
Nws yuav tsum raug sau tseg tias txoj haujlwm sib txawv ntawm Low-E zaj duab xis hauv cov qauv tsis cuam tshuam rau tus nqi K, tab sis tsuas yog cuam tshuam rau qhov kub thiab txias ntawm peb lub iav hauv kev siv tiag tiag.
Ob chav lub tshuab nqus tsev iav muaj qhov ua haujlwm siab thermal, qis K tus nqi, thiab nyias nyias, uas tuaj yeem yog li 9 hli tuab. Nws tseem tuaj yeem ua rau hauv ob chav nqus txheej laminated kev nyab xeeb iav, uas muaj peev xwm loj hlob zoo.