The solar energy water- heater makes the sun light converting into the thermal energy can, heat to°from the low temperature degree water the heat degree is living by satisfying people, production in of hot water usage.The solar energy water- heater presses the structure form to is divided into a peaceful the vacuum tube type solar energy water- heater the plank type solar energy water- heater, the vacuum tube type solar energy water- heater is a lord currently and occupy 95% local market quotas.The vacuum tube type household-use solar energy water- heater from gather a hot tube and keep water tank and related enclosure to constitute,solar cell convert solar energy into thermal energy to be mainly depend on gathering a hot tube.Gather a hot tube to make use of hot water to up float the cold underwater sinks of principle, make the marine products livinged tiny circulation but attain the hot water needed.The vacuum tube works principle diagram:
Gather hot principle
A, absorb hot process
The sun radiation through the outside of the vacuum tube tube, is gathered heat to follow after plating the film absorption inside tube the wall deliver tube inside of water.Water inside the tube absorbs hot empress the temperature go up, the specific weight lets up but rises, forms upward motive and constitutes a hot Hong to absorb system.Continuously and up move along with the hot water and is stored keeping water tank upper part, the temperature lower water follows another side of tube continuously and adds thus and circularly in the meantime back and forth, end whole case water all goes up to certain temperature.solar waterBut flat panel type water- heater, generally in order to divide a body type water- heater, lie quality at gather and absorbs naturally and radiates the sun circularly because of the hot Hong inside the hot plank at gather the hot knothole calories delivers water tank in time and delivers the calories to cold water through a hot commutation(clip set or dish tube) inside the water tank.Lying the quality can also pass a pump to circularly carry out calories to deliver.
Two, circulating tube road
The household-use solar energy water- heater usually presses naturally circularly the way work, there is no outside motive.In order to keep put type structure the vacuum tube type solar energy water- heater, the hot water provides motive through a gravity function.The flat panel type solar energy water- heater provides motive through the pressure(be called water) of tap water.But the solar energy concentration provide hot system to all adopt pump circulation.Because the solar energy water- heater gathers hot area not and greatly, in consideration of the thermal energy loses, generally don't adopt piping circulation.
Three, crest the water type use process
The flat panel type solar energy water- heater works for a waters method, the vacuum tube solar energy water- heater can also practice the way of a water work, can adopt to clip set or dish tube way inside the water tank.Crest water the advantage of the work supply water the pressure as tap water pressure, compare natural gravity type the pressure is big and particularly install height not Gao, its characteristics is to use the water temperature in the process first Gao Hou Di, easily control, the user easily adapts to,solar ingot but requests tap water to keep water supply ability.The solar energy water- heater specific weight dint type water- heater of crest water work method contains great cost, the price is high.