New Opportunities for Modern Nano-silica Aerogel Insulation Materials
The new silica aerogel materials developed by oil companies and the Chinese Academy of Sciences have been used in the pipeline for transportation of heavy oil in Karamay Oilfield. Field tests show that compared to traditional materials, silica aerogel insulation layer thickness of only half, each year can save 250,000 yuan, quite economical.
The reason for using the industrial field of industrial income is better, and China's domestic high-quality crude oil resources less and less, major oil fields are in the exploitation of heavy oil. Silica aerogels materials are used in a wide range of applications, and industrial pipelines can be promoted in the civil sector as well.
New materials, energy-saving charm
The so-called heavy oil, generally speaking, is relatively sticky, in most cases the original state is hard as a stone. Mining process, the need to use high-temperature steam injection through the wellhead, after melting heavy oil out of the ground.
The high-temperature steam required for mining is generated centrally by boilers near the well head and transported to the site via pipelines. High temperature steam in the transport process to avoid loss caused by cooling, including economic losses and heat loss.
Traditionally, thicker silicate tiles were wrapped in shipping pipe, twice as thick as silica aerogel batts. The traditional material is a tile-like solid, very bulky, the junction of the link is not close, usually replaced every five years. Nano-silica aerogels insulation materials are more durable and superior in thermal insulation.
Nano-silica aerogel is not new, the field of foreign aviation as early as the 1930s has been the application, but the high cost. China's nano-silica aerogel technology previously subject to technology and technology, can not mass production. Tradematt and the Chinese Academy of Sciences to promote technology breakthrough in the field of insulation and ultra-supercritical carbon dioxide extraction and drying.
The use of these two technologies to open the aerogel insulation blanket and carbon dioxide supercritical extraction drying equipment that can promote the industrialization and large-scale production of silica aerogel insulation blanket. At present, China's nano-silica airgel has just started, annual production of hundreds of tons, the price of 400,000 to 700,000 yuan / ton, the import price of 150,000 US dollars / ton. The cost of raw materials using new technologies is only 10% to 15% of foreign prices, cost-effective.
Aerogel technology is the basic technical support of nanosilica aerogel insulation technology. Aerogel, also known as xerogel. When the gel is stripped of most of the solvent, the content of the liquid in the gel is much less than the solid content, or the medium filled in the spatial network of the gel is a gas which is solid in appearance, which is the xerogel and Called aerogel.
Aerogel unique structure determines its very low thermal conductivity, as low as 0.013W / (m · K) at room temperature, thermal conductivity than air is also low.
The breakthrough achieved by this study led to a new material made of nano-silica aerogel insulation blanket, which can be mid-200 degrees Celsius to 650 degrees Celsius middle insulation better performance. Supercritical extraction technology can also be used in medicine, cosmetics and many other fields.
Wide range of new technologies
The market scale of the industrial field is growing. Taking the heavy oil recovery in Karamay as an example, it invested 800 million yuan for heavy oil recovery and transformation equipment, of which nearly 200 million yuan was used for the reconstruction of thermal insulation materials for pipelines.
Insulation in the industrial field is a new market, an incremental space, and has little effect on the original interest chain, and the industrial market can prove the advanced nature of its materials.
At present, the cost of new nano-silica aerogel materials is only one-sixth of that of similar foreign products, and the high cost performance can help enterprises truly solve the problems. The cooperation prospect is very good.
Nano-silica aerogel products can be applied to civil wall insulation, glass insulation, pipe insulation for industrial use, special industries in the field of ultra-high thermal insulation, military and aerospace areas such as the special requirements of thermal insulation areas.
Building curtain wall is a huge market to Beijing, for example, there are about 100 million square meters of construction area, equivalent to 50 million square meters of area to be insulated to 180 yuan per square meter cost is 90 billion yuan of market space.
Adiabatic and fire-related, the use of nano-silica aerogel insulation materials can effectively prevent fire and improve building energy efficiency. Frequent large-scale construction fire can be effectively prevented.