double heat exchange solar energy water heater

double heat exchange solar energy water heater system:

* Material
A) Inner water tank: SUS304-2B food grade stainless steel
B) Outer water tank: coating steel board
C) Bracket: color steel with electrostatic plastic coating

* Temperature insulation layer
A) Material: Imported polyurethane (from Bayer Germany)
B) Thickness: 50mm for maximum 72 hours conservation
C) Density: 42kgs / Cu

Advantages:

1.Highly efficient absorber of high performance with daily average

efficiency over 50%;

2.Start up quickly, heat pipe transfer the heat energy into the storage

tank in one direction.

3.Withstand pressure of 6 Bar, can be connected directly with city

water.

4.No water inside the evacuated tubes; the solar water heater can still

in service even with several tubes breakage;

5.Highly efficient insulation with polyurethane foam;

6.Simple structure, easy to assembly and install, diffuse flat plate

reflector can be assembled easily with its module structure;

7.Can be used all year round in the cold climate;

8.Can be used together with Auxiliary electric boost;

9.Long service life, can be used as long as 15 years;

Solar vacuum tube is the most important segment,the following are the detail introducement.

1) Absorptivity:0.94-0.96

because of the copper insulation,the absorption of stainless steel and the decline heat of Aluminium layer.

2) Endure bad weather

Our evacuated tube can endure temperature to 250^.C,even under -50^.C since the vacuum rate can reach less than 5.0×10^-3pa.

3) Structure stability

The tube prssure-endure ability can reach 1Mpa

4) Long life

Patented conducting substance is compatible with normal metal material that result in non-condensable gas and non-stop running within 15 years and long duration for the collector.

5) Advanced technology

Our company use 3 target magnetron sputtering plating technology,which introduce from Germany and also called interferometer coating technology.