Diameter 47mm/58mm/70mm Three Target All Glass Evacuated Solar Vacuum Tube
Product Description
Three Target All Glass Evacuated Solar Vacuum Tube
Three Target Evacuated Vacuum Tube
Three Target Solar Vacuum Tube Price
1.Technical Parameters
Tube Series | Single targe tcoating solar vacuumtube | Three target coating solar vacuum tube | |
Tube structure | All-glass double-tube co-axial structure | ||
Glass material | Borosilicate 3.3glass | ||
Outer tube diameter and glass thickness | Φ=47±0.7mm &=1.6mm ±0.15mm | ||
Inter tube diameter and glass thickness | Φ=37±0.7mm &=1.6mm ±0.15mm | ||
Absorptive coating property | Structure | Glass/AL/AL-ALN(H)/AL-ALN(L)/ALN | Cu-SS-ALN |
Sediment method | 1 target magnetron sputtering | 3 Targets magnetron sputtering | |
Absorption ratio | α=0.90~0.92(AM1.5) | α=0.93~0.96(AM1.5) | |
Emission ratio | ε=0.09~0.1(80°C±5°C) | ε=0.05~0.075(80°C±5°C) | |
Vacuum tightness | 5.0×10-3 Pa | ||
Heat loss | 0.6-0.76W/(m2.°C) | 0.4 -0.6W/(m2.°C) | |
Resist cold | -20°C | -25°C | |
Resist high temperature | 220°C | 250°C | |
Service life | 12 Years | 15 Years | |
2. Product Advantages
<1> Best heating efficiency: Heat pipe as heat exchanger, good absorbent coating and best combination between them!
<2> Wide applicable range: As the heat pipe has less heat capacity, it works very quick even under cloudy days and collect heat effectively.
It can work normally even -30 degrees. As no water in the vacuum tube, it can effectively prevent low heat efficiency due to frost cracking or scaling!
<3> Each individual tube can work independently, and the whole system can still work if any one of them get damaged. The lifespan of our heat pipe is more than 15years.
<4> The connection between the heat pipe and vacuum tube is good and vacuum tube can be replaced if broken!
3.Product Features
1. No scaling
2. No blasting
3. Water-tight
4. Anti aging
5. Low temperature-resistant
6. High temperature-resistant
7. Resistant to high temperature
8. Fast heat transfer
9. High heat conductivity
10. Bearing pressure
4.Product Shows
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