1 all glass tube, coated SS/Al-N-Al/Cu layer 247*1500mm, normal capacity 6L/T 3 eco-friendly 4 certification ISO9001-2000
STRUCTURE
The all-glass vacuum tube is made up with the inside glass tube sun selective absorption coating vacuum sandwich cover glass tube, provide support (spring), getter.
MAIN PROCESS
incision coated
exhausting packing
specification
Structure | All-Glass Double Tube Co-Axial Structure | ||
Glass Material | High Borosilicate 3.3 Glass | ||
External Pipe Diameter & Thickness | dia.=47±0.5mm &=1.6mm, dia.=58±0.5mm &=1.6mm, | ||
Internal Pipe Diameter & Thickness | dia.=37±0.5mm &=1.6mm, dia.=47±0.5mm &=1.6mm, | ||
Pipe Length | 1500mm,1800mm | ||
Absorptive Coating Property | Structure | Cu/SS-ALN(H)/SS-ALN(L)/ALN | |
Sediment Method | Three Layer Magnetron Sputtering Plating | ||
Specific Absorption | as=0.92~0.96(AM1.5) | ||
Emission Ratio | 0.01~0.03(80°C±5°C) | ||
Vacuum | P≤2.0×10-3Pa | ||
Idle Sunning Property | Y= 260 ~ 300m²°C/KW | ||
Solar Irradiation for Obtaining a Preset Water Temperature | H≤4.7 MJ/ m²(dia.58) | Solar Irradiation for Obtaining a Preset Water Temperature | |
H≤3.7 MJ/ m²(dia.47) | |||
Average Heat Loss Coefficient | Ult=0.4~0.6W/( m².°C) | ||
Pressure-Endure Ability | 1.0Mpa | ||
Hail-Endure Ability | 30mm | ||
Lifetime | 15years | ||
FEATURE: a perfect combination of the vacuum tube and the heat pipe
1. higher heating efficiency:
Heat transferring can be started quickly even under cloudy day. It can work normally even -30 below degree. As no water in the vacuum tube, it can effectively prevent the lowering of heating efficiency due to frost cracking or scaling
2. Each individual tube can work independently, and the whole machine can still work if individual tube is damaged. The service life of the heat pipe can be longer than 15 years
3. The unique connection between the heat pipe and the vacuum tube can ensure both sealing and replace of the damaged glass vacuum tube.
high efficiency three layer vacuum tube
