Internal and external multiple-phase-change thermal insulation building block

Abstract

The invention provides an internal and external multiple-phase-change thermal insulation building block. The internal and external multiple-phase-change thermal insulation building block comprises an intermediate insulating layer, an external phase change layer, an internal phase change layer, intermediate insulating layer ribs, external phase change layer ribs, internal phase change layer ribs and a building block protective layer, wherein the intermediate insulating layer is arranged inside a building block and is separated by one or two intermediate insulating layer ribs; the external phase change layer and the internal phase change layer are respectively arranged on the two sides of the intermediate insulating layer; the external phase change layer and the internal phase change layer are separated by multiple external phase change layer ribs and multiple internal phase change layer ribs respectively; the internal phase change layer adopts paraffin microcapsule, n-hexadecane microcapsule and n-octadecane microcapsule as a phase change thermal insulation material; the external phase change layer adopts the paraffin microcapsule, the n-hexadecane microcapsule, the n-octadecane microcapsule, n-tetracosane microcapsule and stearic acid microcapsule as a phase change thermal insulation material. The internal and external multiple-phase-change thermal insulation building block has the beneficial effects and advantages that a phase change material still can bring the superiority of phase change energy storage to fully play under the condition that an outdoor temperature is greatly changed, energy is saved, thermal insulation is realized, and an indoor temperature is stable and comfortable.

Description

technical field [0001] The invention relates to a thermal insulation raw soil block in the technical field of construction, in particular to a thermal insulation block with internal and external multi-phase changes. Background technique [0002] With the large-scale construction of cities and towns, the problems of high consumption, high investment and low income in the construction industry have become increasingly prominent. At present, China is already the largest producer and consumer of building materials in the world. The output of major building materials such as cement, flat glass, building sanitary ceramics, stone and wall materials ranks first in the world for many years. Although the external wall insulation and interior wall insulation technologies widely used at present can reduce energy consumption, due to the limited heat capacity of the material itself, energy cannot be fully stored and utilized, thus limiting the ability of buildings to save energy. Due to ...

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Problems solved by technology

The melting point of n-alkanes is close to the comfortable temperature of the human body, and its phase change enthalpy is large, but the price of n-alkanes is high, and it will frost on the surface of the material when mixed into building materials; the price of fatty acids is low, and the phase change enthalpy is small, and it takes a long time Only a large amount can achieve the temperature adjustment effect; polyol is a solid-solid phase change material with fixed phase transition temperature and phase transition enthalpy, but its price is high

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