A kind of temperature insulation layer material for thermoelectric power generation circuit surface, preparation method and application

Abstract

The invention provides a thermal insulating course material for a thermoelectric power generation pavement, a preparation method and an application. The material is prepared from materials as follows: matrix asphalt, diabase aggregate, calcined bauxite particles, expanded perlite ore sand, expanded vermiculite particles, potassium hexatitanate whisker powder, aluminum silicate fiber and a high-viscosity asphalt modifier. The material is used for a thermal insulating course during laying of the thermoelectric power generation pavement. After being laid in a structural layer of the thermoelectric power generation pavement, the thermal insulating course material can effectively prevent heat on the surface of the pavement from being further conducted to the depth of the pavement, so that heat on the pavement is concentrated in a heat collection area of a thermoelectric power generation system, and the heat collection efficiency and the thermoelectric power generation efficiency of the pavement in the thermoelectric power generation system are improved.

Description

technical field [0001] The invention belongs to the field of pavement materials, and relates to a temperature-insulating layer material, in particular to a temperature-insulating layer material used for a thermoelectric generating circuit surface, a preparation method and an application thereof. Background technique [0002] Asphalt pavement has the advantages of smoothness and comfort, and is the main type of pavement for highways and urban roads. More than 90% of highways use asphalt pavement. In asphalt pavement, the content of asphalt is about 4-6% (mass ratio). Black asphalt makes the overall color of the pavement dark gray. This dark asphalt pavement is easy to absorb heat under the action of solar radiation. Rutting disease on the pavement affects the performance and durability of the pavement; on the other hand, this kind of pavement material that absorbs heat during the day and releases heat at night also aggravates the urban heat island effect, making the urban te...

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Problems solved by technology

[0006] In view of the fact that the range of heat conduction on the road surface is too wide in the current thermoelectric power generation system, the heat cannot be concentrated in the energy collection area of ​​the thermoelectric power generation system, resulting in low energy acquisition efficiency at the hot end of the thermoelectric power generation system, which in turn affects the efficiency of thermoelectric power generation and other issues , the object of the present invention is to provide a kind of temperature insulation layer material, preparation method and application for the temperature difference generating circuit surface, and the temperature insulation layer material is arranged on a reasonable road surface layer, so as to effectively block the heat of the road surface and further extend to the depth range of the road surface The internal conduction makes the heat of the road surface concentrated in the heat collection area of ​​the thermoelectric power generation system, thereby improving the heat collection efficiency of the road surface in the thermoelectric power generation system, and further improving the thermal power generation efficiency of the road surface

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