Pressurized Solar Water Heater with Copper Coil
Our pressurized solar water heater with copper coil is split model, you can put the collector outside and put tank inside house. And there in copper coil inside the water tank, you can choose singe copper coil or double copper coil, if double copper coil you can connect the water tank with gas water heater or electric water heater to achieve auxiliary heating function, so in sunless day you also can enjoy hot water.
When the discrepant temperature of the solar collector and water tank reaches the set value, the controller shall start the circulation pump automatically. Vacuum tube is composed of inner and outer glass pipe, inspiratory layer, vacuum space, inspriatory membrane. The surface of inner and outer glass tube is plated with selective absorption layer. The layer absorb the solar energy and turn it into heat energy, aluminum fins pass the heat energy to the heat pipe, the liquid medium in the heat pipe is heated by the heat energy, then turns into the gas medium, the gas medium flows up to the top of the heat pipe (condenser) and transfer the energy to the copper manifold header heat pipe. At the same time the gas medium turns into the liquid when cooled, then flows down. Keep recycling. In case the temperature of the water tank does not reach Tmax, then start the auxiliary heating device.