1.Low coefficient of heat loss 2.High absorption efficienc 3.ensure operation in winter 4.OEM is welcome 5.15years life
Ordinary solar collector:
Advantage:
In order to reduce energy loss through heat emission, the most efficient absorbers have a selective surface coating, which is rinsed by the water moved ion so that the selective coating can be adhere to the tubes firmly . It guarantees the efficiency and service life of the collector tube.
Perfect technology :
The patented technologies in circular sealing and annealing system make a solid linkage between the inner and outer tube and fully eliminate the internal stress,solving the problem of liable damage in sealing parts.
solar collector tube Parameter:
Configuration | ordinary solar collector tube |
Material | Borosillicate glass 3.3 |
Glass thermal expansion coefficient | 3.3×10-6 |
Diameter of cover tube | 47mm/58mm |
Diameter of inner tube | 37mm/47mm |
Thickness of glass | 1.6mm |
Transmittance of cover tube | 0.91 |
Length | 1200 / 1500 /1800mm |
Solar selective absorbing coating | Graded Al-N/Al selective surface, sputtering |
Solar absorptance(AM1.5) | 0.9 |
Emittance(80) | 0.08 |
Stagnation Temperature | ≥200 |
Heat loss coefficient | ≤0.80W |
Impact resistance | Withstand hailstone of 25 mm in diameter |
Strength(pressure tested) | 1MPa |
Vacuum tightness | P≤3×10-2PA |
Raw materials
The material is 3.3 high borosilicate glass
it is a kind of special type glass material with the features of low expansion coefficient,high temperature resistance,high intensity, high rigidity, transparency and chemical stability. It doesn't explode in high temperature, and can be forged and drawn to variety of formation when soften.
All these splendid features enable it to be widely used in the field of solar energy,chemical industry, pharmaceutical packaging, electric light source,artificial crystal, artificial craft decoration and so on.Compared with ordinary glass. It's non poisonous, and it has made the big progress in its mechanical property, thermal stability, hydrolytic resistance.acid resistance and alkali resistance glass
Production process
Packing
Standard export packig (corrugated paper with foam packing) :
1.usually packed as:8pcs/ctn,10pcs/ctn,12pcs/ctn,15pcs/ctn
2.can packed according to your requirements.
Service
1.OEM ( put your layser logo on tube .print logo on the carton )
2. arranging shipping for you . place the ship ,track the ship ,and inform the goods location. .
3.Track the goods production for you .
4. check the best quality for you .
Minimum order : 100 pcs
single target vacuum tube(single layer evacuated tubes)
