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浅析太阳能采暖专用集热器之真空管集热器
来源:http://www.sdlntyn.com 发布时间:2018-9-13 14:56:25 浏览次数:388
全玻璃真空管集热器俗称为拉长的保温瓶,内胆外壁有太阳能吸收涂层,内胆装水,内外玻璃层为高真空度,起到保温隔热作用。利用玻璃管的冷热水分层的后热水上浮产生虹吸的原理,冷热水自然循环,将冷水逐步加热。
All-glass vacuum tube collector is commonly known as the elongated thermos flask, the outer wall of the inner liner solar absorption coating, the inner liner filled with water, the inner and outer glass layer for high vacuum, play a thermal insulation role. The siphon is produced by the floating of hot and cold water after the glass tube is divided into layers. The cold and hot water circulates naturally and the cold water is gradually heated.

它的工作原理是太阳能透过外玻璃照射到内管外表面吸热体上转换为热能,然后加热内玻璃管内的传热流体,由于夹层之间被抽真空,有效降低了向周围环境散失的热损失,使集热效率得以提高。 全玻璃真空管由内、外两根同心圆玻璃管构成,具有高吸收率和低发射率的选择性吸收腊沉积在内管外表面上构成吸热体,内外管夹层之间抽成高真空,其形状像一个细长的暖水瓶胆。

济南阳台壁挂太阳能

Its working principle is that the solar energy radiates through the outer glass to the endotherm on the outer surface of the inner tube and converts it into heat energy. Then the heat transfer fluid in the inner glass tube is heated. Because the interlayer is vacuumed, the heat loss to the surrounding environment is effectively reduced and the heat collection efficiency is improved. All-glass vacuum tube is composed of two concentric circular glass tubes with high absorption and low emissivity. Selective absorption wax is deposited on the outer surface of the tube to form an endotherm.
目前真空管的镀膜工艺有两种:渐变镀膜工艺和干涉镀膜工艺,过去常用的“晒乐”真空管就是采用渐变镀膜工艺,为真空管式太阳能热水器的推广和普及奠定了坚实的基础;
At present, there are two kinds of coating technology for vacuum tube: gradual coating technology and interference coating technology. In the past, the commonly used "sunray" vacuum tube is to use gradual coating technology, which lays a solid foundation for the popularization and popularization of vacuum tube solar water heater.
真空管内直接对水进行加热,吸热效率更高;寿命长;成本更低;适用范围广,可以在-30°的环境下正常运行。目前市面上的太阳能集中供水工程80%使用真空管集热器。真空管集热器对系统的设计、安装施工要求很高,如设计不当或安装不良会出现爆管现象。海纳德太阳能生产厂家专利产品递进式加热系统,不仅集热效果好,而且还防止炸管。
The vacuum tube heating water directly has the highest endothermic efficiency, long life, the lowest cost, a wide range of applications, and can operate normally in the environment of - 30 degrees. At present, solar concentrating water supply works on the market 80% use vacuum tube collectors. Vacuum tube collector has a high requirement for the design and installation of the system. If the design is improper or the installation is not good, the tube will burst. Progressive heating system, patented by Heinard Solar Energy Manufacturer, not only has good heat collection effect, but also prevents tube explosion.