Aerogel gel thermal insulation felt is a new type of thermal insulation material. Aerogel gel thermal insulation felt product is a flexible thermal insulation felt made of nano silica aerogel and inorganic fiber materials by special process. Aerogel is the solid material with the lowest thermal conductivity known at present. Due to its special structure, it is also solving the four major problems of steam pipeline insulation: good insulation effect, waterproof, fireproof and anti settlement. At the same time, environmental protection is harmless to human health. Aerogel originally originated in the United States and was used in space suits to protect astronauts in space. It was also used in the military aerospace field later. China's aerogel materials are also originated from aerospace, and are used in China's aerospace military field. The aerogel products produced in the civil market are silica aerogel gel thermal insulation blankets with a temperature range of (-200 ° C-800 ° C).
The main defects of traditional insulation materials on steam pipelines are:
1. Due to the high thermal conductivity of insulation materials, a thick insulation layer is required to ensure the insulation effect. The thickness of the insulation layer is large, resulting in a large amount of civil engineering work.
2. Traditional insulation materials have poor high-temperature stability, natural pulverization, and performance degradation and damage after 2-3 years of use, resulting in significant energy waste.
3. Traditional insulation materials have poor compressive and tensile properties, are prone to deformation under pressure and vibration, and steam pipelines may disintegrate and settle due to moisture and vibration, resulting in severe heat loss exceeding the standard.
4. Traditional insulation materials have poor waterproof performance and corrosion after absorbing water and moisture, posing certain safety hazards.
5. Poor insulation effect leads to significant heat loss. Rock wool and aluminum silicate fiber are harmful to the human body.
Use aerogel insulation blanket on steam pipeline
1. The thermal conductivity of aerogel thermal insulation material is low, 0.018 W/(m.k) at room temperature. The thickness used at the same temperature is 1/3-1/5 of that of traditional materials, which is convenient for construction.
2. The insulation performance is 3-5 times that of traditional materials, and the insulation heat loss is small. Its special structure has waterproof and compressive properties, and its insulation performance can last up to 20 years at high temperatures.
3. The unique nano three-dimensional network structure provides extraordinary high-temperature stability, avoiding deformation accumulation and sharp decline in insulation performance caused by vibration.
4. It has excellent overall waterproof performance, with a hydrophobicity rate of ≥ 99%, isolates liquid water, allows water vapor to pass through, does not get damp, absorbs water and corrodes pipelines, making it the best choice for thermal pipeline insulation materials.
5. It has flexible compressive strength, can resist rough construction, does not settle or deform after long-term use, and does not contain harmful substances to the human body.