There are several kinds of solar water heater
(2) flat type solar water heater can be divided into tube plate, wing tube, snake tube, flat box, round tube and heat pipe type. The utility model has the advantages of good integrity, long service life, less failure, safety, low pressure operation, safe and reliable, easy to heat absorption area, combined with the construction, resistance to water and air drying advantages, its thermal performance is stable. Because of the non vacuum in the cover plate, the insulation performance is poor, so the collector performance is poor when the ambient temperature is low. Low temperature or high water temperature required for low thermal efficiency. Such as the need to replace the whole set of frozen hot plate, suitable for the southern region of the winter is not frozen
1, from the heat collection part:(1) glass vacuum tube solar water heater: can be divided into all glass vacuum tube type, heat pipe vacuum tube type, U type tube vacuum tube type / vacuum tube heat collection, heat storage integration. The utility model relates to a full glass vacuum tube type, which has the advantages of safety, energy saving, environmental protection and economy. Especially the solar water heater with an auxiliary electric heating function, which by the solar energy, supplemented by the way of using energy to the solar water heater all-weather normal operation, the ambient temperature is low efficiency is still relatively high. The disadvantage is that the volume is relatively large, the glass tube is fragile, easy to scale the pipe scale, can not be operated under pressure.
(3) ceramic hollow plate type solar water heater: ceramic solar panel to ordinary ceramic matrix, three-dimensional mesh surface layer of V-Ti black ceramics hollow thin-walled flat box type solar collector. Ceramic solar panels for the whole ceramic material, waterproof, impermeable, high strength, good rigidity, no corrosion, not aging, do not fade, non-toxic, harmless, non radioactive, sunlight absorption rate does not decay, with long-term high photothermal conversion efficiency.
The types of solar water heater solar water heater can be divided into the following categories:
