Can solar water heaters be used in winter —— Solar energy technology and climate pk

Whether solar water heaters can be used in winter is a concern of many people. If solar energy cannot be used in winter, it means that the utilization rate of solar energy is only half, which will greatly increase the installation cost of solar water heaters and force consumers to choose other water heater systems. In fact, with the current solar water heater technology, using solar energy in winter is not a problem at all. As long as it doesn't snow, solar energy will always work and bring us free domestic hot water at any time. Solar energy technology has been developed in China for more than 20 years, and the technological breakthrough is changing with each passing day. Users of solar water heaters in China can see how big the solar energy market is. Now, in addition to the traditional vacuum tube solar water heater, there is a more energy-saving and stable flat solar energy, which can provide hot water even in rainy days, but the utilization rate of flat solar water heater is not very extensive in China, so we still take vacuum tube solar water heater as an example to see how solar water heater technology pk climate environment. Can the solar water heater be used in winter? -Photoelectric dual energy, continuous rain and snow resistance. Good vacuum tubes and heat preservation water tanks only solve the relative weather conditions, so can solar water heaters still be used in rainy and snowy weather for more than 2 consecutive days? Although continuous rain and snow weather is not the mainstream of China's climate, it will also affect the normal use of hot water. In order to solve this problem, electric heating can be added to the water tank to realize the photoelectric dual energy of the solar water heater. When the temperature can't meet the requirements of continuous rainy days, you can turn on the electric heating for a period of time, and you can take a bath normally with very little electricity, so that the solar water heater can be unaffected by the weather-the same is true for continuous rainy and snowy weather. Can the solar water heater be used in winter? -The vacuum tube with strong heat collection ability and insufficient light resistance is the heat collection power of solar energy and the premise and foundation for good utilization of solar energy. A good vacuum tube can absorb heat to the maximum during the day and produce hot water in cold winter. Of course, in some areas, it is necessary to clear the snow on the vacuum tube after it snows in winter to ensure the heat collection ability of the vacuum tube. Can the solar water heater be used in winter? -Excellent thermal insulation and low-temperature weather resistance. Water tank is the thermal insulation power of solar energy, and thermal insulation layer is the key and guarantee to make good use of solar energy. If the quality of insulation layer is not up to standard, no matter how good the heat collection performance is, no matter how high the water temperature in the tank is, it will turn into cold water overnight. A good insulation layer is like "thermal underwear", which can keep the heat from losing and can be used in winter. Can the solar water heater be used in winter? -Intelligent control to avoid overflow and icing In order to avoid the problem that the water level is invisible and the spilled water is easy to freeze, the dealer can install a special solar controller according to the needs of users, which can realize automatic water supply, water temperature and water level display, automatic electric heating, worry-free and convenient, the water level is visible, the spilled water is accurately guaranteed, and naturally it will not freeze. Can the solar water heater be used in winter? -Standardized installation and strict anti-freezing measures. The above three aspects only solve the hot water problem of solar water heaters, but can not fundamentally solve the problem of "discharge" and use of hot water. Because some pipes and interfaces of solar water heaters are exposed, measures should be taken to prevent freezing and keep warm in winter. By installing anti-freezing electric heating belt and insulation pipe on the pipeline, the problems of "arthritis" and "poor road" caused by pipeline icing in winter can be effectively solved, and hot water can be safely transported home. If there is no problem with the solar water heater technology and the product quality is excellent, it is believed that the solar water heater can be used in winter. Of course, if you install a flat solar water heater, it is even more important. Flat solar water heaters will usher in a new era of solar energy. Wuhan suffers from a rare natural gas shortage, and solar water heaters have become the main purchase targets of consumers.