Glass metallic sealing -in part and solar vacuum heat collection tube

• Main Authors: YANG XING, WANG JING, AN DEJI, ZHANG LEI, FAN BING, CAO MINGGANG
• Format: Patent
• Language: Chinese; English
• Published: 17.11.2017
• Subjects: BLASTING; CHEMISTRY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GLASS; HEATING; LIGHTING; MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES; MECHANICAL ENGINEERING; METALLURGY; MINERAL OR SLAG WOOL; RANGES; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; VENTILATING; WEAPONS

The utility model discloses a solar vacuum heat collection tube glass metal seal structure who belongs to glass and metal technical field. The sealing -in method adopts hot melt sealing technology, and becket one end is inlayed at glass intraductally and concentric with the glass pipe, and the coefficient of expansion of glass pipe and becket is similar, and direct hot melt seals. Seal structure under the prerequisite that can guarantee sealing -in intensity and cold -resistant thermal shock, reduction in production cost by a wide margin. 本实用新型公开了属于玻璃与金属技术领域的种太阳能真空集热管玻璃金属封接结构。所述封接法采用热熔封技术，金属环端嵌在玻璃管内并与玻璃管同心，玻璃管和金属环的膨胀系数相似，直接热熔封。所述封接结构在可以保证封接强度和耐冷热冲击的前提下，大幅降低生产成本。