Characteristics of the advantages of flat panel solar water heater
Flat panel solar water heater after decades of development, technology has become more mature and complete, and have the other types do not have the advantages of solar features.
One particularly suitable for integration with the building requirements. Flat plate solar water heater because of its structural characteristics, in the building integration of solar energy applications, flexible free form structure, form or size of the design constraints are not easy to achieve with a combination of building components. Along with its collector plate of metal, wire knot can be easily used, welding connections for installation, maintenance and use facilitated.
Second, high thermal efficiency. Because the vacuum tube solar collector is composed by a number of vacuum tubes, there is a gap between the tube, was too much sunlight, some solar collectors are not accepted. Flat plate solar collectors is a continuous plane, the entire collector surface can receive sunlight. Therefore, in the same area and sunlight intensity lighting, flat panel solar water heater is generally higher than the daily average efficiency efficiency of 6% on average.
Third, the pressure with good performance. As the flat panel solar collector absorber plate is made of metal materials, the collector and the storage tank is also used to connect metal parts, therefore, from the water and can withstand the pressure of the circulating pump.
Currently, water is generally a centralized water supply systems, water pressure is high, which requires out of hot water from have a certain pressure, thus, reducing the water heater outlet and the pressure difference between outlet for user convenience and comfort. Fourth, the formation of large system performance and stability. For some large places such as hotels, swimming pool, factories and other places, the use of solar water heaters, they often need a lot of blocks composed of large-scale solar collector water supply system. If the use of flat plate solar collectors, the collector and the metal connection between the systems, and vacuum tube solar water heater, rather than as connected with the rubber parts, we can ensure the stability of the entire system. Therefore, the establishment of large-scale s, they often use flat solar collectors.
In addition, the structure of flat-panel solar water heater is simple, convenient and easy processing of large-scale production, but also makes it a low manufacturing costs, installation costs and long service life Province. Of course, the existence of flat plate solar collector heat loss and high antifreeze and other issues, also need to be resolved through further technological innovation. In order to actively participate in international competition, to develop the domestic high-end market, we must attach importance to research and development of flat panel solar water heater, a more open mind, improve our level of solar thermal technology and international level.