SOLAR-HEAT-COLLECTING PIPE

• Main Authors: KUROYAMA TOMOHIRO, TSUTSUI TAKUHITO, NORITAKE KAZUTO, IGIMI DAISUKE, OKUHARA YOSHIKI
• Format: Patent
• Language: Chinese; English
• Published: 09.04.2021
• Subjects: BLASTING; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS; VENTILATING; WEAPONS

The present invention provides a solar-heat-collecting pipe that includes, in the stated order from the inner side on the outer surface of a ferrous metal pipe through the interior of which a heat transfer medium can flow, at least a first diffusion-preventing layer, a second diffusion-preventing layer, an infrared-reflecting layer, a sunlight-to-heat conversion layer, and a reflection-preventing layer. The first diffusion-preventing layer includes at least one selected from the group consisting of silicon oxide, aluminum oxide, and chromium oxide. The second diffusion-preventing layer includes at least one selected from the group consisting of tantalum nitride, tantalum oxynitride, titanium nitride, titanium oxynitride, niobium nitride, and niobium oxynitride. 本发明提供一种太阳能集热管，在能够供热介质在内部流通的铁系材料制管的外侧表面上从内侧起至少依次包含第1防扩散层、第2防扩散层、红外线反射层、太阳光－热转换层和防反射层，上述第1防扩散层含有选自氧化硅、氧化铝和氧化铬中的至少1种，上述第2防扩散层含有选自钽氮化物、钽氧氮化物、钛氮化物、钛氧氮化物、铌氮化物和铌氧氮化物中的至少1种。