Method for arranging cotton insulation material on heat supply pipeline

Abstract

The invention relates to a method for arranging a cotton insulation material on a heat supply pipeline. The method is an upper-thick-lower-thin arrangement manner. The cotton insulation material is of an upper-thick-lower-thin insulation cotton tubular shell structure. According to the method, the cotton insulation material is made into a non-concentric tubular shell, the upper part of the insulation cotton tubular shell is thicker, and the lower part of the insulation cotton tubular shell is thinner, so that a better insulation effect can be reached under the condition that the volume size of insulation cotton is not changed, e.g. under the condition that the diameter phi is 529, the medium temperature is 270 DEG C, and the outdoor temperature is 1 DEG C, shown by analysis, the upward heat conductivity is 1.9 times the horizontal heat conductivity, and the downward heat conductivity is 0.1 times the horizontal heat conductivity; and under the condition that the volume size of the insulation material is not increased, the heat loss of the pipeline can be reduced to the maximumminimum, and then, the aims of energy saving and consumption reducing are reached.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation materials for heating pipelines, and mainly relates to a method for arranging cotton thermal insulation materials on heating pipelines. Background technique [0002] Known thermal insulation materials are roughly divided into two categories: cotton and non-cotton. Currently widely used cotton insulation materials include rock wool, glass wool, aluminum silicate wool, asbestos, slag wool, etc.; non-cotton insulation materials include microporous calcium silicate products, polyurethane foam, rubber and plastic products, cement Perlite products, foam concrete products, polystyrene foam, etc. No matter what kind of insulation material, the thermal conductivity of the material itself is not small. For example, glass wool is composed of glass fibers, and the thermal conductivity of the glass is about 1. , the thermal conductivity of glass wool is about 0.06 , the thermal conductivity...

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Problems solved by technology

From the above analysis, it can be seen that the thermal conductivity of cotton insulation materials is closely related to the direction. Therefore, the traditional equal-thickness layout method not only causes large heat loss in the pipeline, affects the insulation effect, but also increases the cost of use.

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