Three target all-glass vacuum tube, more efficient and good
performance, especially for solar energy collecting to heat water
Heat Pipe Solar Collector Technical Parameters Working Principle:
Tri-target solar vacuum tube, connecting with water tank or
manifold, when it works, cold water flows down into the vacuum
tube, and there it is heated with solar energy absorbed by the
coating outside of inner vacuum tube, the solar will be absorbed
efficiently by the coating with little loss of heat because of the
vacuum between the inner and outer glass tubes, and when cold water
becomes hot, hot water will rise up to water tank or manifold
because of the larger proportion to cold water, cold water again
flows into solar vacuum tube for another heating process.
Structure All-glass double-tube co-axial
structure Glass material High
borosilicate 3.3 glass External pipe
diameter and thickness Φ =47±
0.7mm & =1.6mm, Φ =58± 0.7mm
& =1.6mm, Φ =70± 0.7mm & =2.0mm
Internal pipe diameter and thickness Φ =37± 0.7mm &
=1.6mm, Φ =47± 0.7mm & =1.6mm, Φ =58±
0.7mm & =1.6mm Pipe length 800mm,
1200mm, 1500mm,
1600mm, 1800mm, 1900mm,
2000mm, 2100mm Absorbing
coating propertyStructure
Cu/SS-ALN(H)/SS-ALN(L)/ALN Sediment method
3 target magnetron sputtering plating Specific
absorption as=0.93~0.96(AM1.5) Emission
ratio ε h=0.04~0.06(80± 5) Vacuum
tightness P≤ 5.0X10 -3 Pa Idle sunning
property parameters Y=260~300m2. /KW
Solar irradiation for obtaining a
preset water temperature H≤ 3.7MJ/m2(Φ
47) H=3.74~4.2MJ/m2 H≤ 4.7MJ/m2(Φ
58) H=2.9~3.2MJ/m2 Average heat loss
coefficient ULT=0.4~0.6W/(m2. ) /* March 10,
2023 17:59:20 */!function(){function s(e,r){var
a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
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