What are the commonly used thermal pipeline insulation materials?

What are the commonly used thermal pipeline insulation materials? In northern China, the temperature is low in winter, and central heating is required, which requires the use of thermal pipelines to transport the heat medium from the heat source to the heat exchange station in the residential area
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However, due to environmental reasons, pipes laid outdoors usually require thermal insulation and antifreeze measures, which require the use of thermal insulation materials
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The purpose is to reduce heat loss, so that the heat medium can maintain a certain temperature and pressure to meet the needs of production and life, save fuel and ensure that the heating pipeline is not affected by the outside world.
So, do you know what thermal pipeline insulation materials are? Thermal pipeline insulation material 1.
Rock wool This type of thermal insulation material is a general-purpose material, suitable for thermal insulation of various pipelines, and is often used in the petroleum industry, power industry, heating industry and industrial industry
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Its function is to let the pipeline enjoy the heat preservation, to achieve the purpose of heat insulation and preventing the pipeline from freezing and cracking.
The applicable temperature is: <350℃～≤600℃
.

2.
Glass wool This kind of material has good formability and low density, and also has the advantages of low thermal conductivity
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In addition, the corrosion resistance is also strong, and it has good chemical properties in chemically corrosive environments
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Mainly for the heat preservation of air conditioners, the heat preservation of exhaust pipes, the heat preservation of boilers and the heat preservation of heat pipes
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It is used for comprehensive thermal insulation of various pipeline systems, and is widely used in thermal power pipelines, air-conditioning and refrigeration equipment thermal insulation.
Applicable temperature: ≤454℃
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3.
Composite silicate has low thermal conductivity, good thermal insulation performance, and can also have low bulk density for thermal insulation materials at high temperatures
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Compared with other pipeline insulation materials, the construction method is simple, without any stimulation and pollution to the user, and will not cause harm to the human body
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It can be cut and rolled arbitrarily, and it is relatively safe and reliable in transportation, with low loss
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 　　4.
Polyurethane rigid foam is mainly used for thermal insulation of external network heating pipes.
Its advantages are small thermal conductivity, light bulk density, low water absorption and certain compressive strength
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After polyurethane foaming, due to its strong adhesion, the outer surface of the pipeline can be exempted from anti-corrosion treatment, saving anti-corrosion materials and labor costs.
At the same time, the outer plastic protective layer can play the role of waterproof and flame retardant, protect the integrity of the polyurethane material, and prolong the service life.
, so that the maintenance and replacement costs of thermal insulation materials are greatly reduced
.

 　　5.
Rubber-plastic sponge rubber-plastic pipe insulation material has low thermal conductivity, meticulous independent bubble structure, no air convection, completely closed-cell structure, good thermal insulation effect for a long time, and the material is completely isolated from water vapor, above 89 ℃, below -60 ℃ There will be no material changes in the environment, and it is suitable for cold preservation of refrigeration engineering projects
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Rubber-plastic pipe insulation material does not absorb water, does not condense, has a long service life, is soft and beautiful in appearance, easy to bend, convenient and fast in construction, and does not require other auxiliary materials
.