真空絕熱板的應(yīng)用

1、真空絕熱板(VIP)在建筑節(jié)能應(yīng)用方面的探索青島科瑞克環(huán)保材料有限公司H 1 真空絕熱板及熱傳遞理論a|2.VIP的組成及性能3.VIP工程案例4.VIP的發(fā)展前景'- : ； : b 真空絕熱板的發(fā)展:真空絕熱板，英文名稱：Voccum Insulation Pannel,簡(jiǎn)稱VIP。:國(guó)際上真空絕熱板的研究開(kāi)始于1972年，在歐洲最先廿始。:起初VIP主要應(yīng)用于冰箱，船舶，航空等領(lǐng)域，I本占據(jù)著50%VIP市場(chǎng)，每年 生產(chǎn)幾億塊VIP板。隨著VIP研究的不斷深入，VIP越來(lái)越多的被應(yīng)用在建筑領(lǐng) 域,包括地板、門窗、屋頂、內(nèi)墻、外墻保溫的各個(gè)方面。真空絕熱板VIP的組成Vacuum

2、Insulation Panel吸傳劑vip具有非常低的熱導(dǎo)率，被廣泛應(yīng)用與冰箱、 冷庫(kù)等，并逐步被應(yīng)用于建筑領(lǐng)域。芯材Core material阻氣層Gas barrier吸氣劑Getter熱傳遞理論熱傳導(dǎo)熱對(duì)流4- tL5 + Ag + &熱輻射Heat conductivity of conventional insulationmaterials6050403020gas (air)solid.radiation一一20804060100Density kg/m3Shirtliffel972VIP的保溫原理1、通過(guò)抽真空工藝，使板內(nèi)部形 成高真空，將空氣對(duì)熱傳遞的 影響降到最低

3、。2、選擇多孔材料做為芯材，降低 材料的熱傳導(dǎo)3、由鋁箔復(fù)合而成的高阻氣薄膜丄 t MH=18 里 L Ha)oua)o>AQal2eadlu3jj Moz10a)HmultMayer envelopefilmpressed silica core with opacifierwelded seamVIP具有極低的熱導(dǎo)率PSA = 40 mW/mKVIPA =4 mW/mK20 mm PS 200 mm PS20 mm VIP* vacuumRadiation20- 30 % conduction 5-10%Gas conduction and convection 65%以Si()2氣

4、凝膠為芯材的VIP,熱導(dǎo)率為0. 004W/ (m-K),而以特殊纖維為芯材的 VIP,熱導(dǎo)率更是低至0. 0012W/ (m>K).芯材的種類及低的熱導(dǎo)率c<B_>t)npuo。odiglass fibresPU foamPS foamprecipitated silica fumed silicaXIo0.01 0.1 1 10 100 1000gas pressure pgas mbar at 20°C,105Pa(N2)Permeation of Different Gases Through Foils used as Envelopes for Vacu

5、um Insulation Panels,HUBERT SCHWAB? ULRICH HEINEMANN, ANDREAS BECK,Journal of THERMAL ENV & BLDG SCI., Vol. 28, No. 4April 2005不同材料的熱阻值加(k)0.028100 10 200 Aluminium60 Steel15 Inox, Niro 2 Concrete0,2 - 1,5 BrickworkQ Q0,2 Synthetics, Caoutchouc-Q.4(hlXWDQd90 PS, CaSi0,01 40 PS, PU, min. Wool, Fo

6、amglass26 Air, non convective13 Aerogel, Nanogel >4 VIP0.0031.041.0E-031.0E-02 l.OEl 1.0EKJ01.0E-KJ11.OE*O21.0E03Qa16oQQ芯材為多孔材料，孔隙率大于90%,本身具有很低的熱導(dǎo)率，同時(shí)又有足夠的強(qiáng)度 支撐外部壓力.Si。?氣凝膠/纖維氣凝膠與纖維復(fù)合型芯材實(shí)用經(jīng)濟(jì)型芯材的研究Powder 甲Fiberboard：；.局”仏蠱尿.三 3.5 mme 3.5 mm齊= 3.5 mm4e3.5 mm亠W.UJ/M) A=>tsnpuo。-iOS8 7 6 5 4 e.0.0

7、.0.0 a a a a a0302 Mineral Oxide Fibre-Pumice Powder CompositeO High Density Glass Fibre-Pumice Powder Composite 心 Precipitated Silica- Nanogel1000 10000 100000 1000000Pressure (Pa) Log Scale9th International Vacuum Insulation Symposium 17th and 18th September 2009 at the Royal Institution阻氣層的構(gòu)成1234

8、5678910PET12 um1ALU30 nmPUR2 pmALU30 nmPP18 pmPUR2 pmALU30 nmPET12 jimPUR2 LimIPE-LD60 pm阻氣膜具有極低的氣體透過(guò)率，阻礙氣體進(jìn)入，保證 板內(nèi)始終維持高真空。阻氣層作用機(jī)理FoilFoil compositionOTR (cm3 (STP)/(m2d)WVTR (g/(m2d)AFaPET/8 pm Al/100 pm PE-LD<0.0005 (25 C/50% RH)<0.005 (20 C/50% RH)MF115 pm PPmet/12pmPETmet/50gm PE-LD0.07

9、76; (23 C/50% RH)0.1 (38 C/90% RH)MF220 pm PETmet/20 pmPETmet/25pm PE丄D0.00062 (23 C/75% RH)0.005 (23 C/75% RH)阻氣膜性能的不斷提高Tv鋁箔復(fù)合膜建筑上的應(yīng)用對(duì)VIP提出的要求邊緣對(duì)保溫效果的影響2005年E十卄£ Wk Z回2009年熱橋產(chǎn)生于氣體阻隔膜表面、板與板間的拼縫、板與基體的拼縫等VIP逐步被應(yīng)用建筑保溫IIIVIP被應(yīng)用于建筑外墻外保溫中20mm厚VIP保溫層，熱阻值達(dá)到0.147W/(m2-K)glassgasin.jJ ' <low-eooat

10、ing low-e-coating $您$12mm>scattere( light真空絕熱板應(yīng)用在建筑上的第一案例Prof. M. Volz/Obernburg,1999巴伐利亞州能源研究中心試驗(yàn)樓國(guó)外VIP建筑應(yīng)用實(shí)例va-Q-tec AG在德國(guó)慕尼黑栽茨街23號(hào)的商住樓，04年全部 用絕熱板做的保溫匚程，試驗(yàn)證明在使用相 同厚度得保溫材料的前提下，其能耗僅為慕 尼黑城市平均能耗的l/10o內(nèi)VIP建筑應(yīng)用工程示例上圖：青島海都大酒店下圖：萬(wàn)科金色城品VIP應(yīng)用性能的不斷提高# Characteristic123Determination of thermal resistanceLe

11、ngth and widthThickness4567891011EN 13501 (Swiss: VKF-Rili )EN 1606EN 12090Laminate lift offIEA Annex 39 STA Rep.(2005)在國(guó)外，VIP被更多的應(yīng)用于建筑領(lǐng)域中,相關(guān)的檢測(cè)標(biāo)準(zhǔn)也越來(lái)越完善VIP測(cè)試標(biāo)準(zhǔn)StandardEN 12667 EN 822EN 823 (reference method)(or with Calliper resolution 0.1 mm)RectangularityEN 824RvennessEN 825Bulk density (VIP: appa

12、rent density )EN1602Behavioat compression(10% compression) EN 826Behaviour at fireCreep behaviour under permanent loadCreep behaviour under shear loadInternal PressureGen3高性能不銹鋼箔真空絕熱板Aura®TR#:90550Date:7/2/2009OWENS CORNING SCIENCE & TECHNOLOGY CENTER 2790 Columbus RoadGranville, Ohio 43023

13、-1200740.321.5000Tester: Mark MantonyaMethod: ASTM C518Equipment: Fox 1,2,3 LaserComp Meter Area: 10Mx10"Material: Aura Panels from 1995No.Layers Tested: 1SampleI.D.Total Test Thick, in.Test Temp Hot, CFTest Temp Cold, °FTest Temp Mean, °FK-Value BTUdn f hrft2oFR-Value hrft2eF/ BTUMac

14、hineR/inAura Panel 11.1095.0355.0375.030.0155170.92Fox 164.47453Aura Panel 21.1195.0355.0375.030.009909112.02Fox 3100.9184Aura Panel 31.0995.0355.0375.030.009765111.21Fox 4102.4066Aura Panel 21.1095.0355.0375.030.0119791.81Fox 183.54219Aura Panel 11.1095.0355.0375.030.01039105.77Fox 396.24639AVERAGE 89.5176AGE14 years+R & D Lab Leader Quietflex Goodman Gloal, s. J. Rusek, Jr., PEVIP的發(fā)展前景120001000080006000400020000S 卜996 6(u!2e&