Home > Products > Solar Accessories > 47*1500mm/47*1800mm/58*1800mm solar water heating pipe
47*1500mm/47*1800mm/58*1800mm solar water heating pipe
- 100000 Piece / Pieces per Month
- shanghai/ningbo
- T/T
Product Details
Place of Origin: | Zhejiang, China | Brand Name: | Tonghua Solar | Model Number: | solar heat pipe vacuun tube |
Type: | Other, heat pipe for pressured collector |
Product Description
47*1500mm/47*1800mm/58*1800mm Solar Heat Pipe Vacuum Tube
Heat pipe vacuum tubes features:
Heat pipe vacuum tube consists of the glass vacuum tube and a copper heat pipe which is fixed by aluminium flake and silicon plu.A perfect combination of the vacuum tube and the heat pipe.
- Anti-high temperature and Anti-freeze vacuum tube. The vacuum tube can withstand 400 high temperature and 30 Celsius degree below zero.
- High efficiency and Good performance. The vacuum tube can heat up rapidly, and even work very well on cloudy days.
- Constant warm keeping. The air between inner tube and outer tube is evacuated, which enable the tube to preserve heat.
- Higher heat efficiency: advanced heat transferring style of the heat pipe, excellent selective absorb coating and perfect combination with high vacuum heat preservation.
Wide applicable range: as the heat pipe has less heat capacity, it can be started quickly even under cloudy fine day and collect heat effectively. It can work normally even-30 below degree. As no water in the vacuum tube, it can effectively prevent lowing of heat efficiency due to frost cracking or scaling.
Each individual tube can work independently, and the whole machine can still work if individual tube is damaged. The service life of the heat pipe can be longer than 15years.
The unique connection between the heat pipe and the vacuum tube can ensure both sealing and replace of damaged glass vacuum tube
Solar heat pipe vacuum tube Techinical Specifications | |
Item | Measured value |
Heat conduction coefficient | >99% |
Axial heat transition auantity | 0.93-2.49kw/cm² |
Heat conduction speed | >200mm/s |
Axial temperature difference | 1-2centi-degree/m |
Starting temperature | 20centi-degree |
Starting speed | 2min |
Working temperature range | 30centi-degree~300centi-degree |
Resistance to high temperature | No deformation in 48hours under 250C high temp condition |
Resistance to low temperature | -35C |
Life | 15 years |
Heat pipe :
Pipe condenser diameter: 14mm and 24mm
Pipe condenser length: 50-70mm (customised demension available)
Pipe total length: 1650-1780mm according to outer vacuum tube lengths
Pipe material:High purity TU1 oxygen-free copper material
Assembled with solar vacuum tube;AL fins and silicone sealing plug
Vauum tube technical data:
Structure | All-glass double-tube co-axial structure | |
Glass material | High borosilicate 3.3 glass | |
Extermal 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 –2100mm | |
Absorptive coating property
| Structure | Cu/SS-ALN/ALN |
Sediment absorption | three target magnertron sputtering plating | |
Specific absorption | as=0.93~0.96(AM1.5) | |
Emission ration | 0.04~0.06(80°C±1.5°C) | |
Vacuum tighterness | P≤5.0X10-3 Pa | |
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) |
For further more information , please feel free to contact:
Contact Us
- Haining Tonghua Import & Export Co., Ltd.
- Contact nameCindy Gao
- Phone86-573-87832229
- AddressNo. 307, Nanjie Road, Yuanhua Town
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