“Four things to look at” when purchasing solar energy
Take a look at the concentrating heat effect. The strength of concentrating heat collection ability is an important symbol to measure the performance of water heaters, and it is also an important factor affecting the heat gain of water heaters. The vacuum tube is the heat-collecting “heart” of solar energy. It converts light energy into heat energy and heats the water in the water tank. Therefore, the amount of heat obtained by the vacuum tube under the same external conditions directly affects the water temperature. At present, there are two types of vacuum tubes on the market, one is a vacuum tube manufactured by the traditional gradient film process, and the other is manufactured by using the international leading patented interference film technology, which has the characteristics of “high temperature resistance, high cold resistance, and higher efficiency”. High vacuum tube, the latter is a substitute for the former, it increases the heat gain of the water heater by 30%, which completely solves the problem that the water temperature of the traditional vacuum tube is not high when the light is insufficient in rainy days, and the solar energy is not easy to use when the temperature is too low in winter.
Second, look at the thermal insulation performance. The water storage tank is the “hot water warehouse” of the water heater, and its performance is mainly reflected in the thermal insulation effect. A good insulation water tank depends not only on the thickness of the insulation layer, but also on the insulation material and process. The thickness and material of the thermal insulation layer of the water tank are important parameters that affect the thermal insulation capacity of the water tank. Especially in the area north of the Great Wall, it is recommended to buy a brand solar water heater with a thickness of more than 60mm of insulation layer.
Third, look at the strength of the bearing. The support of solar energy is like the “skeleton” of a human being, of course it will not work if it is too weak. At present, the streamlined tower bearing is widely used. It adopts a reinforced and super high base, which overcomes the shortcomings of the traditional thin-rod bracket that is thin and does not resist wind. It has better wind resistance, rain and snow resistance, hail resistance and corrosion resistance. powerful.
Fourth, look at the brand and service. The host of the solar water heater is outdoors and has been subjected to wind and rain all year round, and needs to be repaired and maintained by professionals. At present, there are thousands of solar water heater manufacturers in China. Since the country has not yet unified the testing standards for solar water heaters, the quality of some products is not good enough, and the installation services are not in place, which brings trouble to users. Relevant experts believe that buying solar energy is not only a product, but more importantly, a service. Therefore, you should choose the products of powerful famous brand professional manufacturers. The installation service personnel of such manufacturers have generally undergone professional technical training and have thoughtful service, so that consumers can have no worries and obtain the best guarantee.
Post time: Oct-26-2022