Solar water heater Trust is not new to everyone, often seen in Central Africa. It has the characteristics of energy saving, environmental protection, safety and health. So how to choose a suitable solar water heater for you? Take a look with Career Knowledge.
Pay attention to six scales when purchasing solar water heater
One is the durability scale: the material, technology, technology difference of solar water heater, service life is also different, there are 3 years, 5 years, there are more than 10 years. As a hot water supply facility on the roof, the old and new silk of the solar water heater will not affect the elegant level of the living room, do not melancholy the problem of upgrading. To buy time to think long, performance, specifications, efficacy should want to be comprehensive. Otherwise, three years later, the solar water heater will not heat up, effect outdated and other problems, change it, not cost-effective, not change, use not quiet. So the first time to buy a comprehensive balance, to prevent the purchase of a short time to hate the situation.
The second is the heat collection scale: vacuum tube is the heart of the solar water heater, the strength of vacuum tube heat collection capacity is the main sign of weighing the performance of the water heater, but also the main factor affecting the heat supply of the water heater.
Now on the market three high vacuum tube application patent three high coating technology, the vacuum degree reached 10-4pa, more than ten years after the performance almost does not decay. Poor vacuum tube used as the scale of insulation bottle to do, vacuum degree is only 10-1-10-2pa, three or five years later neither heat absorption nor insulation, only the role of water.
Three is the heat preservation scale: the water storage tank is the solar water heater “hot water inn”, its performance is mainly reflected in the insulation effect: good insulation layer to accept the entrance raw material, automatic constant temperature and high pressure quantitative foam insulation process, and high temperature curing treatment, insulation performance is high and stable and lasting. Poor quality insulation layer foaming uneven, two or three years after the performance sharply decreased.
Good solar thermal insulation materials and advanced thermal insulation technology can ensure superior thermal insulation effect, hot water temperature drops less overnight, still have hot water overnight.
Fourth, scale: popular water heaters cannot meet the hot water needs of modern families in hot water quantity, intelligent control level, operating consumption, water safety and other aspects. The ideal water heater should not only solve the problems that popular solar water heaters, gas water heaters and electric water heaters cannot solve, but also meet the needs of people for flood volume, intelligent and free hot water.
Five is the scale of cold resistance: the winter solar light is weak, the light time is short, the temperature is low, the temperature difference is large, the hot water demand is larger, is the key period to hone the solar energy.
Previous products due to the limitations of the craft, winter, rainy days are not much to use. Now with the discovery of the coating technology, the heat collection performance of the three high vacuum tube is greatly improved, coupled with the application of automatic constant temperature and high pressure quantitative foam insulation process (must be processed by high temperature curing), comprehensive outdoor pipe insulation and anti-freezing measures, solar energy in winter, rainy days can be used, good use has become a reality. The “hot is hard principle” became the gold standard for judging solar power.
In fact, the demand for hot water is more significant in winter, when it is rare to have enough economical hot water is the dream of many families, and this dream is completely achievable. The time to choose solar water heater in addition to pay attention to the product of its own heat collection performance, insulation capacity, but also to see whether the installation is standardized, service is perfect.
Six is the scale of accessories: solar water heater is a heating water system, a good host also needs a good auxiliary machine and accessories to cooperate with the use of superior results. The quality of the original parts of the solar water heater should be matched with the host, which can not only guarantee the use effect and life, but also provide real-time and useful solutions to problems. Some businesses or users in order to figure cheap and save trouble, randomly select accessories to use, the effect of small error, some also caused great losses, people can not find. A user in northeast China lost more than 100, 000 yuan due to the use of inferior accessories, water leakage formed by a large icicle smashed his neighbor’s leap car.
Three key points of using solar water heater in summer
First, pay attention to the water time, never at noon water. Due to the strong summer light, vacuum tube in the sun irradiation, tube air drying temperature as high as 270℃~400℃, then the water is easy to cause vacuum tube burst. So when it comes to water, be sure to choose morning or evening.
Two to voucher the weather situation, the resolution of the water, to ensure that the appropriate temperature of the bath. Look at the water in the sky: proof of the weather forecast to determine the amount of water, you can get a control of the water temperature. If it is sunny tomorrow, the water can be full; If the day is cloudy or cloudy, the upper half of the tank of water; Rain all day long, keep the original water not cold water.
Three to regularly check the water heater pipe, vent and other components are normal things. Check the vent regularly to ensure the flow, so as not to swell or drain the tank; When washing the vacuum tube, pay attention not to damage the lower tip of the vacuum tube; Solar water heaters with auxiliary electric heating devices should pay special attention to water, to prevent dry burning without water. Summer replacement of solar water heater water pipe users rare, experts remind users, check the solar water heater water pipe insulation layer has no aging, cracking, if the upper and lower water pipe exposed, in the sun exposure, easy to become hard and brittle, cracking water leakage. Users had better install insulation layer and anti-UV tape in advance, considerate cherish water pipes.
Advantages of solar water heater
1. From the appearance, it is very consistent with the appearance characteristics of the construction, not disturbed by the construction form, and the components can be easily assembled and maintained.
2, flat panel solar water heater has high thermal efficiency, flat panel solar water heater is the whole face contact with the sun irradiation, can maximize the absorption of direct sunlight.
3, the key component of the flat solar water heater heat absorption plate, is made of metal, whether in the process of transportation and installation, still in use by the pressure of water, can suffer better.
4. In a large place, the contact combination of large solar heating system is more stable, and the stability of the whole system will be greatly improved.
Solar water heaters are flawed
1, flat panel solar water heater is not suitable for use in cold areas easy to freeze, freezing problem can not be well solved, to accept secondary heating.
2, the solar panel core of the flat solar water heater is not a vacuum, the heat insulation effect is not very good, in the outdoor time, the heat dissipation control is fast, the temperature is low.
3, in winter, although the flat panel solar water heater through the secondary heating, but the increase of the central link, there is a certain heat loss.
