3-cavity heat pipe solar vacuum tube

3-cavity heat pipe solar vacuum tube
1.CE,ISO,CCC
2.30mm hail resistance
3.15 year's lifetime
4.OEM 5 years
3-cavity heat pipe solar vacuum tube,
solar
evacuated tube

1.The Borosilicate glass agrees with ISO3585:1991, with the advantage of higher sunshine darting rate.

2.Collector of a magnetron sputtering coating process.

3. Selective deposition gradual absorption coating, the coating on the sun with a high absorption rate and low emission rate, absorbing than the sun, the hemisphere than the launch, the temperature of air drying, vacuum dissection of air pressure, nausea drying explosive convergence of , The average coefficient of heat loss
4. Can withstand the impact of hail, even in cold winter areas can also use

5.High heat effect and Low heat loss :keeping high vacuum degree between interlayers of vacuum heat collecting tube to reduce the heat loss caused by heat exchange and heat convection as maximum as possible.

6.Longlife time free replacement

7.bear chiliness

8.High intensity :can bear diameter 25.00mm hailstones


Glass material
High borosilicate 3.3 glass
All-glass double-tube co-axial structure
External pipe diameter and thickness
Φ=47 add or subtract 7mm &=1.6mm
Φ=58 add or subtract 7mm &=1.6mm

Internal pipe diameter and thickness
Φ=37 add and subtract 7mm &=1.6mm
Φ=47 add or subtract 7mm &=1.6mm

Pipe length
800mm 1200mm 1500mm 1600mm
1800mm 1900mm 2000mm 2100mm

Structure
Cu/SS-ALN(H)/SS-ALN(L)/ALN
Absorbing coating property
Sediment method
3 target magnertron sputtering plation
Specific absorption
as=0.93~0.96(AM1.5)
Emission ratio
εh=0.04~0.06(80°C add or subtract 5°C)
Vacuum tightness
P≤5.0X10-3Pa
Idle sunning property parameters
Y=260~300m2.°C/KW
Solar irradiation for obtaining a preset water temperature
H≤4.7MJ/m2(Φ58)
H=3.7~4.2MJ/m2
H≤3.7MJ/m2(Φ47)
H=2.9~3.2MJ/m2
Average heat loss coefficient
ULT=0.4~0.6W/(m2.°C)
Structure
Glass material
High borosilicate 3.3 glass
External pipe diameter and thickness
Φ=47 add or subtract 7mm &=1.6mm
Φ=58 add or subtract 7mm &=1.6mm
Φ=70 add or subtract 7mm &=2.0mm
Internal pipe diameter and thickness
Φ=37 add or subtract 7mm &=1.6mm
Φ=47 add or subtract 7mm &=1.6mm
Φ=58 add or subtract 7mm &=1.6mm
Pipe length
800mm 1200mm 1500mm 1600mm
1800mm 1900mm 2000mm 2100mm
Absorbing coating property
Structure
AL/AL-CU-SS
ent method
Three targets magnertron sputtering plating
Spectific absorption
as=0.90~0.93(AM1.5)
Emission ratio
εh=0.05~0.075(80°C add or subtract 5°C)
Vacuum tightness
P≤5.0X10-3Pa
Idle sunning property parameters
Y=220~260m2.°C/KW
Solar irradiation for obtaining a preset water temperature
H≤4.7MJ/m2(Φ58)
H=4.1~4.4MJ/m2
H≤3.7MJ/m2(Φ47)
H=3.1~3.4MJ/m2
Average heat loss coefficient