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选购优质太阳能热水器的条件
来源:http://www.sdlntyn.com 发布时间:2016-1-6 13:31:56 浏览次数:745
1. 热性能指标中,平均日效率越高越好,平均热损系数越低越好。
1 thermal performance, the average daily efficiency is good, the average heat loss coefficient is as low as possible.
2. 家用太阳能热水器的关键部件就是全玻璃真空太阳能集热管(简称真空管),真空管质量的好坏直接影响到整个家用太阳能热水器的性能。选购时应仔细观察真空管内玻璃管上的涂层,这层涂层叫太阳能选择性吸收涂层,由于各厂家制作工艺不同,涂层颜色会有所区别,但一般都是黑色、深蓝色或深灰色,质量好的涂层颜色均匀,膜层无划痕、无起皮或脱落现象,玻璃上也没有结石或节瘤现象,支撑内玻璃管的支撑件放置端正、不松动。
The key components of the 2 - household solar water heater is a full glass vacuum solar heat collecting pipe (referred to as vacuum tubes), the vacuum tube quality directly affects the performance of the entire household solar water heater. Purchase should be carefully observed the vacuum tube in the glass pipe coating, which coating layer called solar selective absorbing coating, due to the different manufacturing process of various manufacturers, color coating will differ, but are generally black, dark blue or dark gray color, good quality of coating color uniformity, film no scratches, no peeling or shedding phenomenon, no glass or stone section of tumor, support within the glass tube support the correct place, not loose.
3. 选购时还应注意真空管之间的管间距,一般两管的中心距在70mm左右为宜。
3 when the purchase should also pay attention to the pipe spacing between the vacuum tube, the average length of the center of the two tube is suitable for 70mm.
4. 家用太阳能热水器的支架设计应合理,应有足够的强度和刚度(补充下:还有耐腐蚀性,别用两年支架倒了)才能确保有足够的承重能力。在一些日常风力较大的地区,尤其是沿海地区,在选购家用太阳能热水器时还应注意该产品在设计上是否有抗风能力。
4 domestic solar water heater bracket design should be reasonable, should have enough strength and stiffness (added: there is corrosion resistance, do not use two years of support) in order to ensure enough bearing capacity. In some areas, especially in the coastal areas, in the purchase of domestic solar water heater should pay attention to the design of the product whether there is wind resistance.
5. 目前市场上,家用太阳能热水器的反光板形式多种多样,有平面反光板、曲面反光板、压花铝板等等,在选购时应注意产品的反光板设计是否能充分利用到真空管的吸热面,真空管能否更大程度上受光。(补充:现在大部分都没有反光板了,商家节约了成本,用户产品提高了抗风能力,不要也罢)
5. Currently on the market, the domestic solar water heater has many forms of reflector diversity, flat reflectors, reflective surface plate, embossed aluminum sheet and so on, at the time of purchase should pay attention to product design of reflectors that can make full use of the vacuum tube of the heat absorbing surface of the vacuum tube, can the greatest degree of light. (added: most of them do not have a reflective plate, and businesses save costs, improve the ability of the user to wind the wind, not worth mentioning
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This article is contributed by Jinan solar after-sales service center friendship. More knowledge about please click: http://www.sdlntyn.com we will with the most sincere attitude. To provide you with the most comprehensive services. More relevant knowledge and we will continue to everyone dedication. Stay tuned.