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Beijing Huaye Solar Energy Co., Ltd.
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2018 New Type Graded Al-N-Al Solar Evacuated Tube
OverviewQuick DetailsPlace of Origin:China (Mainland)Brand Name:OEMModel Number:58*1800mmType:Vacuum Solar CollectorApplication:Solar Therma
$2 /Piece
Product Details
Transaction Comments
All-glass Heat Pipe Technical Parameter:
MODELS | Model I | Model II | Model III | ||
Name | SL-I-1500 | SL-I-1200 | SL-II-1500 | SL-II-1800 | SL-III-1600 |
Configuration | two concentric borosilicate glass tubes | triple concentric borosilicate glass tubes | |||
Diameter of cover tube | 47 mm | 47 mm | 58 mm | ||
Diameter of absorber tube | 37 mm | 37 mm | 47 mm | ||
Length | 1500 mm | 1200 mm | 1500 mm | 1800 mm | 1600 mm |
Coating technology | sputtered graded Al-N/Al solar selective absorbing coating | ||||
Solar absorptance (AM1.5) | 0.9 | 0.943 | 0.943 | ||
Emittance (80℃) | 0.08 | 0.05 | 0.05 | ||
Heat loss coeffiecient | 0.80 W/m2℃ | 0.65 W/m2℃ | 0.65W/m2℃ | ||
Transmittance of cover tube | 0.91 | 0.91 | 0.91 | ||
Glass thermal expansion coeffiecient | 3.3*10-6/℃ | 3.3*10-6/℃ | 3.3*10-6/℃ | ||
Strength of glass | 0.8 MPa | 0.8 MPa | 0.8 MPa | ||
Impact resistance | withstand hailstones of 25mm in diameter | ||||
Warranty | 5 years | 5 years | 5 years | ||
The structure and Character of All-glass Heat Pipe:
1. Inner glass tube
2. Solar selective coating: graded Al-N/Al, absorptance reach up to 93%, emittance
less than 6%.
3. Vacuum: with the pressure 5*10-2pa, sustained by the barium getter, the vacuum
degree will maintain 15 years.
4. Outer tube:Borosilcate glass 3.3 with good mechanism and good flexibility. In
the tube factory the raw glass tubes is controlled strictly and eliminate those with
bubbles.
5. metal Supporter
6. Keep vacuum material.
7. Evaporator
8. Shockproof ring:Protect the tubes during the transport.
9. Condensation part:Put into the tank,and transfer the heat into the water in the
tank.
10. Special working medium liquid:High efficiency heat transfer liquid,very low
frozen point.
Advantage of All-glass Heat Pipe:
1. Anti-freezing: Start quickly and anti-freeze even at -40℃.
2. Anti-cracking: Anti-crack even at 300℃.
3. Anti-leaking: Circulate without water, far away from leaking problem.
4. Anti-depositing: Transmit heat by Thsolar patent material.
Why Choose Us?
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All-glass Vacuum Tube Processing:
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Technical Parameter:
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