Flat panel solar water heater: After decades of development, the technology of flat panel solar water heaters has become more mature and perfect, and has advantages and characteristics than other types of solar energy. don't have.
1. Particularly suitable for integration requirements in buildings. Due to its planar structural characteristics, the flat panel solar water heater has flexible and arbitrary shape and structure in the application of building integrated solar energy. It is not limited by shape or size when designing, and it is easy to integrate. building components. In addition, its heat collecting plate is made of metal and can be easily connected by metal knotting, welding and other connection methods, making installation, maintenance and use easier.
2. Has high thermal efficiency. Since the vacuum tube solar collector is composedof several vacuum tubes, there are spaces between the tubes. When illuminated by sunlight, some of the solar energy is not accepted by the sensor. The flat solar collector is a continuous plane and the entire surface of the collector can receive sunlight. Therefore, under the same lighting area and sunshine intensity, the average daily efficiency of flat panel solar water heaters is generally more than 6% higher than the average daily efficiency of solar water heaters with vacuum tubes.
3. Has good pressure resistance performance. Since the heat absorbing plate of the flat solar collector is made of metal materials, and the connection between the collector and the water storage tank also uses metal parts, it can withstand the pressure of tap water and circulation pumps. Fourth, the performance is stable when formation of a large system. For some large places, such as hotels, swimming pools, factories and other places, when using solar water heaters, many solar collectors are often required to form a large-scale water supply system.
4. Stable performance when training a large system. For some large places, such as hotels, swimming pools, factories and other places, when using solar water heaters, many solar collectors are often required to form a large-scale water supply system.
Therefore, when establishing large-scale solar water heating systems, flat panel solar heat collection is often used.
Evacuated tube solar power:
Advantages: safety, energy saving, environmental protection and economy. Especially solar water heaters with electric heating functionauxiliary heater, which use solar energy as the main energy source and use electrical energy in addition to allow the solar water heater to operate normally all year round.
Disadvantages: Complex installation, if installed incorrectly, it will affect the appearance of the house. Maintenance is more troublesome because it is installed outdoors.
Solar water heaters are composed of vacuum collector tubes, insulated stainless steel water tanks, brackets, connecting pipes, etc.
1. Vacuum collector tube?
The collector is the heat collecting element of the system. Its function is equivalent to the electric heating tube of the electric water heater. Unlike electric water heaters and gas water heaters, solar collectors use radiant heat from the sun, so the heating time can only be when the sun is shining. “ All-glass solar collector vacuum tubes are currently popular in the Chinese market. The structure is divided into outer tube, inner tube, selective absorption coating, getter, stainless steel card underneath, vacuum sandwich and other parts.
2. Insulated water tank
An insulated water tank is a container for storing hot water. Since solar water heaters can only work during the day and people usually use hot water at night, the hot water produced by the collector during the day must be stored in an insulated water tank. The volume is the total amount of hot water used each night.
3. Bracket
The solar water heater bracket is the supporting member of the solar water tank and an important part of the solar water heater.
4. Connection pipes
The pipes that transportcarry hot water from the collector to the insulated water tank and carry cold water from the insulated water tank to the Manifolds connect the pipes so that the whole system forms a closed loop