What are the requirements of domestic solar water heater? What are the advantages and disadvantages of solar water heater
Advantages and disadvantages of solar water heater:Advantage：1 high tech products, copper aluminum anode polarization composite plate core or all purple copper core, high surface treatment process, good heat transfer performance, strong absorption capacity, water production;2 the system has good heat preservation performance, large heat storage energy, and the heat preservation water tank has the function of water storage. The utility model can meet the requirement of large quantities of personnel to use hot water, and can also be used as an emergency water source for water supply without water supply;3 solar water heater system for automatic static operation, without special care, no noise, no pollution, no leakage, poisoning, fire danger, safety, environmental protection and energy saving benefits;4 with sewage purification function, clean water pollution;5 vacuum tube solar water heater with good thermal insulation performance, strong frost resistance.
(3) when installed on the roof, the weight of the water tank, the heat collecting plate and the water shall be taken into account, and the load on the floor shall be increased. The influence of wind should be considered when the building is high.
Installation position of solar water heater:(1) the water heater is usually installed on the roof of the building. When it is used in summer, the angle between the heat collecting plate and the ground should be less than about 10 degrees.(2) collector installation direction, to receive the best plate towards the south, such as the actual installation conditions are difficult, but also can be installed 15 degrees east or west.
Shortcomings:1 large area on the floor of the installation of insulation;2 hot water pipeline for more than ten meters, each use to waste a lot of water;3 the need for a full day of sunshine in order to heat the water, when the weather is good can only ensure that there is hot water at night, during the day and at night there is little hot water available, can not guarantee the user 24 hours hot water supply, poor comfort;4 solar water heater lighting board must be installed on the roof, both large and heavy, but also affect the construction of the beautiful (the more obvious the more high-end residential areas), but also easy to damage the roof waterproof layer;5 photoelectric complementary, in fact, can not be properly implemented.6 now more than 99% of the market are very backward, non pressure type, commonly known as the water". The water, the water is only a water pipe, the use is very inconvenient, simply can not talk about comfort.
