The invention relates to the field of solar water heaters, in particular to a pressurized vacuum tube solar water heater. Solve the pressure problem of vacuum tube solar hot water. Pressure-bearing vacuum tube solar water heater includes bracket, vacuum tube and heat preservation water tank. The heat preservation water tank is located at the top of the bracket. The heat preservation water tank is equipped with water inlet, water outlet and exhaust pipe. The vacuum tube is inclined to be installed on the heat preservation water tank. The connection between the heat preservation water tank and the vacuum pipe is sealed, and a group of water inlet and water outlet pipes are arranged at each connection, and the water inlet pipe is located below the water outlet pipe. The outlet pipe extends to the upper and middle part of the insulation water tank; the vacuum pipe is lined with U-shaped copper pipe, and the two ends of the U-shaped copper pipe are matched and connected with the inlet pipe and the outlet pipe respectively. The U-shaped copper pipe is equipped with a collector plate facing the upper end of the vacuum pipe towards the sunlight, and the collector plate wraps the U-shaped copper pipe. Under the same requirement, less number of vacuum tubes and lower requirement of vacuum tube technology can be used to produce hot water faster and meet the daily water demand of some industries.
【技术实现步骤摘要】
承压式真空管太阳能热水器
本专利技术涉及太阳能热水器领域,特别是承压式真空管太阳能热水器。
技术介绍
很多太阳能热水器都是以真空管作为集热元件,用真空管吸收的热量加热真空管内腔中的冷水,管内被加热的冷水水温升高,密度减小,热水向上运动,而比重大的冷水下降到管底,继续加热,确保热水不断自下而上流入水箱中。由于真空管为双层玻璃结构,其抗压能力较小,这种真空管抗冻性差,不能直接与外供水管路连接,不适合当水箱与出水口高度差在10米以内的房屋使用。目前,太阳能热水器的集热部件为双层玻璃真空管,其包括外玻璃管、内玻璃管,外玻璃管与内玻璃管之间为低压真空层,内玻璃管的外表面涂有吸热层,外玻璃管和内玻璃管的一端分别封口形成自由端,外玻璃管的另一端与内玻璃管的另一端密封。安装热水器时,双层玻璃真空管插入水箱内,水箱和内玻璃管连通,内玻璃管和水箱内的水循环将集热器吸收的热量传导入水箱内。但是集热部件与水箱之间的连接处不能承受自来水压,且水与内玻璃管接触也导致集热部件容易结水垢和在高温下炸管。目前市场上出现了如申请号CN201720996183.6承压式真空管太阳能热水器,该热水器的支 ...
【技术保护点】
1.承压式真空管太阳能热水器,包括支架、真空管和保温水箱,保温水箱位于支架顶部,保温水箱上设有进水口、出水口和排空管,真空管倾斜安装在保温水箱上,其特征在于:保温水箱与真空管的连接处密封,且每个连接处设有一组进水管和出水管,进水管位于出水管的下方,出水管向保温水箱内延伸到中上部;真空管内套有U形铜管,U形铜管两端分别对应与进水管和出水管匹配安装连通,U形铜管面向真空管上端朝向太阳光的方向设有集热板,集热板包裹住U形铜管。
【技术特征摘要】
1.承压式真空管太阳能热水器,包括支架、真空管和保温水箱,保温水箱位于支架顶部,保温水箱上设有进水口、出水口和排空管,真空管倾斜安装在保温水箱上,其特征在于:保温水箱与真空管的连接处密封,且每个连接处设有一组进水管和出水管,进水管位于出水管的下方,出水管向保温水箱内延伸到中上部;真空管内套有U形铜管,U形铜管两端分别对应与进水管和出水管匹配安装连通,U形铜管面向真空管上端朝向太阳光的方向设有集热板,集热板包裹住U形铜管。2.如权利要求1所述承压式真空管太阳能热水器,其特征在于:所述集热板以U形铜管为中心线对称弯曲。3.如权利要求1所述承压式真空管太阳能热水器,其特征在于:所述U形铜管直径3-30mm。4.如权利要求2所述承...
【专利技术属性】
技术研发人员:雷兴红,雷飞,王蕊,薛桂花,
申请(专利权)人:玉溪市兴红太阳能设备有限公司,雷飞,
类型:发明
国别省市:云南,53
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