2000L Solar Heating Solution Solar Thermal Collector Glass Tube
Solar Collector
Specification
| Modle | PT-NC-15 | PT-NC-20 | PT-NC-25 | PT-NC-30 | PT-NC-40 | PT-NC-50 | PT-NC-60 |
| Quantity of Tubes | 15 | 20 | 25 | 30 | 40 | 50 | 60 |
| Contour aperture area | 1.94m2 | 2.58m2 | 3.22m2 | 3.88m2 | 5.16m2 | 6.44m2 | 7.76m2 |
| Manifold | Inner shell: 304 2B | Foaming: High pressure polyurethane |
| Three Target Vacuum Tube | Diameter/Length: φ58mm/1800mm; High boron and silicon content 3.3;
Structure:Gradual change SS-AL-Nx/Cu selective absorption coating;
Vacuum Degree:P<=5*10-3; |
| Anti-dust Ring | White Silicon Rubber |
| Work Pressure | 0.05Mpa |
| Bracket | Galvanized Steel with Plastic Coating in Black color - 0/20/30/45
degrees |
| Tailstock | ABS |
| OEM Service | Logo painting on products and package is for free (20FT,40FT,40HQ) |
Working principle
1. The design of this type solar collector use the all-glass three
targets vacuum tubes as the heat-absorb element.
2. The high vacuum degree of the clearance between the outer and
inner tube can reduce the heat emission which caused by convection
and conduction to a very low level.
3. All-glass evacuated tube transfers sun energy into heat energy
by the high absorption rate and low emittance rate of layer films
(Cu/Al/SS).
4. Depend on thermo-siphon principle, the different density between
the hot water and the cold water, a cycle can be created in the
tube which hot water ascending and cold water descending status.
5. Keeping natural circulation like this, the water in the manifold
will be heated hotter and hotter.
Solar project
1. The horizontal solar module. It is the mainstream collector that
used to supply plenty of hot water, it is a non-pressure solar
collector.
2. Due to place the vacuum tubes in the horizontal direction, the
central collector pipe is the channel in the up-and-down direction,
so it is very suitable for using for natural circulation.
3. Each unit have more vacuum tube, so when we need to use more
tubes and lack of area of structure, it is usually use this system.
4. Especially, on the long and wide roof, adopt series installation
in the up-and-down direction to place more tubes in the minimum
area and save the cost of the support.
5. The support adopt crane span structure design plan, it is easy
to installation and firm.
6. The diameter of water outlet is DN25, (nominal diameter) use the
silicone tube to connection.
Advantage
1. It is the system that can place most vacuum tube in unit area.
2. Adopt natural circulation, Without electricity, Reliable
operation, Low failure rate, Almost free maintenance.
3. Relatively speaking, the cost of the collector is less than
others.
4. Due to place the vacuum tubes in the horizontal direction, the
central collector pipe is the channel in the up-and-down direction,
Provided the possibility for empty the system.
So it can realize anti-freezing and provide lots of water. When the
system stop working, still have lots of hot water in vacuum tube,
using the empty technology can enjoy more water.
5. The distance between the bottom of tank and up end of the
collector should more than 0.5 m.
6. The up circulation pipe should lay in a third of tank.
Characteristics
1. Applicable to solar hot water supply/ swimming pool heating/
commercial water heating.
2. Operates automatically, telecommuting controlling.
3. The design allows for versatile architectonic integration.
4. Strong adaptability
5. Wide application occasions
6. Economical and practical
7. Environmental conservation and energy saving
8. In large-scale projects, we use many-tubes-connected solar
collecting system that is composed of solar collectors, storage
tank, auxiliary heating system, computerized controller and pipe
cycling system
9. with large heat collecting capacity and hot water output.
Water pipe connect
Manifold has two water connectors, water inlet and outlet.
Solar collector connect to water storage tank, when water
circulate, the hot water in the solar collector will flow to the
water tank, cold water will flow to solar collector and heating.
Maintenance
Maintenance of the system is very easy and includes the following
tasks:
1. Cleaning
Regular rain should keep the evacuated tubes clean, but if
particularly dirty they may be washed with a soft cloth and warm,
soapy water or glass cleaning solution. If the tubes are not easily
and safely accessible, high pressure water spray is also effective.
2. Leaves
During autumn, leaves may accumulate between or beneath the tubes.
Please remove these leaves regularly to ensure optimal performance.
3. Broken tube
If a tube is broken it should be replaced as soon as possible to
keep the system working. Any broken glass should be cleared away to
prevent injury.
PT-NC Non Pressure Solar Collector.pdf
