200L Domestic Compact Powered High Efficiency Coil Heat Exchanger
Pre Heated Solar Water Heater
Feature:
1. Glass vacuum tube solar collector, high temperature, antifreeze,
vacuum insulation.
2. Food-grade stainless-steel SUS304 2B inner tank, full-automatic
welding technology, under the protection of magnesium rod, it can
increase of service life.
3. High pressure polyurethane foaming insulation, as the prefect
density and the thermal conductivity coefficient is small, so it
can provide effective heat preservation
4. The outer tank adopt color steel plate, and it has good double
anti-corrosion function.
5. The assistant tank can supply water automatically so that the
water in the tank can always be full, it not only can save time but
also very convenience.
Working principle:
The vacuum tubes absorb the sunlight and turn it into the heat
energy, heating the water in the tubes. Depend on the thermo siphon
principle, the hot water from the tubes goes into water tank, while
the cold water from the tank goes down to the tubes.
People do not use the water from the water tank directly. The cold
water comes into the copper exchanger, be heated, then goes out
from other side for people use.
1. It takes the advantage of the tap water’s pressure.
2. Completely automatic operation.
3. The water can be heated rapidly.
4. Use the copper coil as the heat exchanger, simply install and
use.
5. No risk for corrosion or scale deposit, best option for
inferiority water area.
6. Easy to install for flat roof and pitched roof, auxiliary
heating by electrical heater.
7. High pressure polyurethane foaming with thickness 55mm.
Good water quality
It use tap water directly, live water but not sedimentary water.
Pressure endurance
The thick of coil is 0.8mm, which can withstand 6-12 bar.
Working automatically
A feed tank on the top, it will supply water automatically. What
you need is just to open tap and have a wash.
No scale, high efficiency
Water in the tank wouldn't be used just to heat the coil, the water
in the tank will keep hot and no scale. The vacuum tubes will be
kept clean, and system has a higher efficiency than normal system.
Simple structure
Total 3 valves in whole system only, very simple and safety,
maintenance free.
Anti-freezing
Because of all hot water in main tank, the feed tank won't be
frozen. It can be working well in -10deg.C. - good performance in
rainy & cloudy days
When tap water comes in and out, it will be just 3deg.C less than
water in tank. Viz. if 90deg.C in tank, the outlet water will be at
87deg.C after exchanging.
If tank water is 90deg.C, and you catch rainy days, no problem, if
you use 50L 40deg.C water per day, you can keep getting such hot
water for 15 days!!
The electric heater is only backup, we don't use it anytime
practically, except in winter.
More capacity
Because the water in tank doesn't be used, in fact the circulation
is not only water in the tank but also water in the tube. So for
example 300L, actually it has 400L in whole system.
| Heat-transferring coil | |
| Coil material | TP2/SUS304 stainless steel | TP2/SUS304 stainless steel | TP2/SUS304 stainless steel | TP2/SUS304 stainless steel | TP2/SUS304 stainless steel | TP2/SUS304 stainless steel |
| Coil diameter(㎜) | φ12/φ20 | φ12/φ20 | φ12/φ20 | φ12/φ20 | φ12/φ20 | φ12/φ20 |
| Coil length(㎜) | 20 | 30 | 30 | 35 | 35 | 35 |
| Heat transfer area(㎡) | 0.75/1.50 | 1.13/2.26 | 1.13/2.26 | 1.32/2.64 | 1.32/2.64 | 1.32/2.64 |
