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It is understood that insulation energy savings can typically reduce energy loss by 90% and help ensure proper steam pressure for plant equipment. Any surface above 50 ° C should be insulated, including boiler surfaces, steam and condensate return lines and fittings.
Since the general temperature of the steam pipeline is about 200-600 ° C, the high-temperature insulation material should be selected when selecting the steam pipeline insulation material. Although there are many insulation materials, there are few high-temperature insulation materials, of which rock wool, glass wool and gas gel belong to high temperature resistant materials, and the fire rating belongs to Class A non-combustible materials. They all have the effect of high temperature resistance, heat insulation, sound absorption and noise reduction.
1, high temperature rock wool
High temperature resistance rock wool has the characteristics of higher fire resistance temperature, higher melting point, longer fire aging and smaller high temperature shrinkage, and high temperature resistance up to 800℃.
2, high temperature glass wool
High temperature glass wool is widely used in electric power, 冾 gold, petroleum refining and chemical industries, such as boiler, flue, hot air duct, dust collector, reactor and other equipment thermal insulation, heat insulation and noise reduction, because of its light weight, durability and superior thermal insulation performance.
3. Aerogel
An aerogel is a solid derived from a gel whose liquid component is replaced by air, making it dry and porous. Their tightly distributed particle size is particularly suitable for adiabatic applications because of their extremely low thermal conductivity, high shear resistance and high temperature resistance. Compared with rock wool and glass wool, aerogel is relatively high in price.
In addition, rock wool, glass wool and air gel can be sized according to the size of the steam pipe. For small steam pipes, rock wool pipes, glass wool pipes, etc., can be used. For large steam pipe surface area, thermal insulation roll felt shape can be used for thermal insulation wrap.