High Efficiency Tile Roof Vacuum Tube U Pipe Solar Collector Black Aluminium Alloy Frame

Specifications

Three-high Solar collector tube
1. advance technology.
2. solar vacuum tube
3. high efficient.

Work principle

Evacuated tubes convert solar energy into heat energy, that is transferred to U pipe by an aluminum fin with high solar energy absorption and low heat radiance loss, Liquid (antifreezing liquid or water) in the U pipe heats up, and the U pipe conducts thermal energy to the water inside the storage tank directly (or through internal copper coil), With a testing pressure of 1.2 MPa, Working pressure is 0.6MPa.

Specification of three-high all-glass vacuum heat collection tube:

Structure: All-glass double-tube co-axial structure;
1. Glass material:

High borosilicate 3.3 glass.

2. External pipe diameter and thickness:

Φ=47±0.7mm &=1.6mm;Φ=58±0.7mm &=1.6mm;Φ=70±0.7mm &=2.0mm.

3. Internal pipe diameter and thickness:

Φ=37±0.7mm &=1.6mm;Φ=47±0.7mm &=1.6mm;Φ=58±0.7mm &=2.0mm.

4. Pipe length:

800mm;1200mm;1500mm;1600mm;1800mm;1900mm;2000mm;2100mm.

5. Absorptive coating property:

Structure: Cu/SS-ALN(H)/SS-ALN(L)/ALN.
Deposition Method: 3 high magnetron sputtering plating.
Absorption than: As=0.93~0.96(AM1.5).
Emission ratio: 0.04~0.06(80±5).

6. Vacuum tightness:

P≤50x10-3 (Pa).

7. Idle sunning property parameters:

Y=260~300m2 . /KW.

8. Solar irradiation for obtaining a preset water temperature:
H≤4.7MJ/m2 (Φ58) H=3.7~4.2 MJ/m2
H≤3.7MJ/m2 (Φ47) H=2.9~3.2 MJ/m2

9. Average heat loss coefficient:

ULT=0.4~0.6W/(m2.).

Thermosyphon

In each vacuum tube there is a U pipe with direct flow-through that is connected to the header pipe inside manifold.

This U pipe is seamed in an aluminum heat transfer fin in the interior of vacuum tube that transmits the heat from the interior tube to the U pipe.

Solar radiation permeates the outer glass tube and is captured on the outside of inner glass tube by highly selective sputter layer.

The captured solar radiation is transmitted to flush-contact aluminum shield and then copper pipe filled with heat transfer fluid.

The 360° Aluminum heat transfer fin assures the fastest energy transfer.

Quality Guarantee

1.We provide 5years warranty of products and shipment with 1% spare parts

2.We can send the parts free on condition that there is any breakdown with convincing evidence

1% spare parts include:

- Wiper scraper seal

- Tube holder

- Screws & screw caps

Contact

We will reply your email or fax within 24hours

You can call us at any time if there is any question on our production