How to choose insulation for high-temperature pipelines?Aerogel vs Aluminum Silicate Wool,Is the viral claim of "90 million yuan energy savings in 10 years for 1km pipeline" true? Based on a real case of 1km DN300, 400℃ high-temperature steam pipeline, this article compares Aerogel Insulation Blanket with traditional Aluminum Silicate Wool, and calculates the actual 10-year energy-saving benefits with real data. A must-read for industrial energy conservation and steam pipeline renovation!
This FAQ guide unpacks silica aerogel, the flagship thermal insulation material known as "solid smoke"—a nanoporous, non-toxic solid with ultra-low density and thermal conductivity, dubbed the ultimate insulation for blocking all heat transfer modes. Pure aerogel is brittle, so practical options are composites like flexible blankets and rigid boards, mass-produced for civil use across -200℃ to 1500℃ applications (industrial insulation, construction, EV battery thermal management, etc.). It boasts superior insulation, waterproofing, Class A flame retardancy and easy installation, yet costs more than traditional materials (prices halved in China over a decade) and has dust-shedding challenges, now largely solved by proprietary tech. Key selection factors include thermal conductivity, operating temperature and dust rate; insulation effect improves with thicker layers or lower conductivity.
Jiashao Bridge has successfully developed a high-performance fire-resistant cable protection system, which has been formally put into large-scale application on the actual bridge. This landmark achievement not only solves the long-standing industry challenge of protecting cables under fire threats but also elevates China’s bridge safety protection to an unprecedented new height.Combining Al₂O₃-SiO₂ aerogel composite material with high-silica fiberglass cloth, this layer achieves extraordinary heat insulation performance. As the first application of this ultra-light, ultra-low thermal conductivity material in bridge engineering, it can keep the temperature of internal steel wires below the critical failure threshold even after 90 minutes of continuous exposure to 1100℃ high-temperature flames — realizing the remarkable effect of "charred exterior with cool interior".
