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Question:

What are the types of solar water heaters? What advantage

What are the types of solar water heaters? What advantage

Answer:

From the heat collecting partGlass vacuum heat collecting heat efficiency: is the highest part, the advantages of the heat collecting part does not need to increase in the thermal insulation layer, the vacuum glass tube now in high temperature, anti crack and thermal insulation performance, are the best, most manufacturers are using. The disadvantages of large volume, easy to scale pipe scale. Metal plate: excellent heat transfer performance of the metal sheet, covered with heat absorbing coating, the use of metal heat transfer, the heat absorbed in the tank. The utility model has the advantages of beautiful appearance and convenient installation, can be made into a flat plate, and is not easy to be damaged. Disadvantages: insulation to spend a high price, high cost, indirect is to increase the burden on consumers;
Pressure from the water tankBearing type: no matter what kind of split water heater, there is a fatal disadvantage, must use the pressure water tank, all the basic idea is to split water heater, a direct test of the heat collecting part of the sealing performance; manufacturing cost is high pressure water, security problems, demands a pressure of 7 atmospheric circulation; the effect is not very ideal. To solve the water cycle and water convenience. Non pressure type: currently installed in the roof are non pressure type water heater, it has a water tank and the atmosphere of the atmosphere, the use of the roof and the height of the gap, the use of water pressure. Safety cost, service life is much more significant than the bearing type. Limited roof
Classification from structureThe utility model is characterized in that the vacuum glass tube is directly inserted into the water tank, and the water temperature of the water tank is increased by using the heating water circulation. Is also the most popular. Only the top layer can be used to change the type of water heater, unless the top user and the relationship between your downstairs special iron, and the roof area is limited. Split type water heater: split type: the solution is not the top users can also use solar water heaters. Split cycle 2, a water on the natural circulation, the heat exchange efficiency is low, can not meet the requirements of water; a pump circulation heat exchange, to solve the problem of low efficiency of natural circulation, pump circulation, can significantly improve the water heat exchange

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