To be simple, the electric circulating pump electric circulating pump is a vessel that is used to reserve the hot water. The hot water collected by the heat collector must be preserved in the heat preservation tank of the solar geyser to prevent from the heat loss. The capacity of the low pressure solar geyser refers to the water volume that can be used in the solar geyser, and the volume that cannot be used in vacuum tube is not included.
The solar geyser tank consists of liner, insulating layer as well as the outer shell of the vacuum tubes solar geysersvacuum tubes solar geysers. The liner of the water tank is important component that is used to preserve the hot water. Therefore, the material of the water tank requires high strength as well as high corrosion resistance. And there are stainless steel and enamel on the market. The quality of the thermal insulating material of the heat preservation layer directly decides the heat preservation effect of the low pressure solar geyser, especially in cold season. The better heat preservation method is to use the PU entire foaming technique to preserve the heat. And its outer shell is generally color plate, aluminizing sheet zinc or corrosion resistant plate. And the whole requirements of the solar geyser tank are good solar heater preservation effect, corrosion resistance as well as clean water quality.
And the kind of the vacuum tube solar geyservacuum tube solar geyser can be divided into square, flat, cylinder as well as sphere in the terms of appearance. And there are upright and horizontal two place methods. And as for the withstand voltage, the solar geyser tank has open tank with ordinary pressure and closed tank with proof pressure. And it can be divided into ordinary tank and tank with supplementary heat source. And as for the methods of heat transfer, the solar geyser tank can be divided into direct heat transfer tank and indirect heat exchange tank.
What's more, the quality of the material of the water tank of the low pressure solar geyser has great effect on the withstand voltage, temperature resistance, leakage proof as well as water quality. At present, the domestic material that is used for water tank is steel plate that is antiseptic or enamel, galvanized steel sheet, rust protection aluminium sheet as well as stainless steel plate. The features of the water tank include exothermic character, heat character and heat preservation character. The exothermic character refers to that the hot water inside of the water tank can come out to be used. The family-used solar water heater tank uses vertical type, and the cold water push the hot water to come out from the upper part. The heat character heat most of the water inside of the water tank. As for the heat preservation character, the speed of the decrease of the water temperature is lined to the seal, heat insulating material, and environment temperature as well as water volume.- See more about solar water heater products at: http://en.micoe.com/waterheater/Low-pres...er-heater.shtml
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