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China, Chinese All Glass Three Target Vacuum Tube1 Industrial Products Supplier Manufacturer Details, price list catalog:
China Industrial Products Supplier Manufacturer List Catalog
Solar Renewable EnergySolar Vacuum TubeVacuum TubeSolar Glass Vacuum Tube
Inlight New Energy (Zhejiang) Co., Ltd.
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Product DescriptionFeaturesThree-target glass vacuum tube, high efficiency and good performance, especially for solar energy collecting to heat hot water .SpecificationStructureAll-glass double-tube co-axial structureGlass materialHigh borosilicate 3.3 glassExternal pipe diameter and thicknessΦ=47±0.7mm &=1.6mm, Φ=58±0.7mm &=1.6mm, Φ=70±0.7mm &=2.0mmInternal pipe diameter and thicknessΦ=37±0.7mm &=1.6mm, Φ=47 ±0.7mm &=1.6mm, Φ=58±0.7mm &=1.6mmPipe length1500mm,1800mm, 1900mm, 2000mm, 2100mmAbsorbing coating propertyStructureAL/AL-ALN(H)/AL-ALN(L)/ALNSediment methodSingle target magnetron sputtering platingSpecific absorptionas=0.90~0.93(AM1.5)Emission ratioεh=0.05~0.075(80±5)Vacuum tightnessP≤5.0X10 -3 PaIdle sunning property parametersY=220~260m2./KWSolar irradiation for obtaining a presetwater temperatureH≤3.7MJ/m2(Φ47)H=4.1~4.4MJ/m2H≤4.7MJ/m2(Φ58)H=3.1~3.4MJ/m2Average heat loss coefficientULT=0.6~0.7W/(m2.)Working PrincipleAll-glass solar vacuum tube, connecting with water tank or manifold, when it works, cold water flows down into the vacuum tube, and there it is heated with solar energy absorbed by the coating outside of inner vacuum tube, the solar will be absorbed efficiently by the coating with little loss of heat because of the vacuum between the inner and outer glass tubes, and when cold water becomes hot, hot water will rise up to water tank or manifold because of the larger proportion to cold water, cold water again flows into solar vacuum tube for another heating process.
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