Building enclosure wall capable of playing role in energy saving throughout year

Abstract

The invention discloses a phase-change enclosure wall capable of playing a role in energy saving throughout the year. The wall structure comprises an outer decorative finish layer, a base layer wall,an interface treating mortar layer, a heat preservation layer, a first phase-change mortar layer, a second phase-change mortar layer, a third phase-change mortar layer, a plastering layer and an innerdecorative finish layer from outside to inside; and the heat preservation layer, the first phase-change mortar layer, the second phase-change mortar layer and the third phase-change mortar layer arecombined together to form an inner heat preservation structure. According to the phase-change enclosure wall capable of playing the role in energy saving throughout the year, the indoor thermal comfort can be effectively improved, the annual energy consumption of a building is reduced, the power supply pressure during peak electricity utilization is reduced, and the effect of peak load shifting isachieved.

Description

technical field [0001] The invention belongs to the related field of passive energy-saving building equipment, and in particular relates to a building enclosure wall body which contains three layers of phase-change mortar layers and can save energy throughout the year. Background technique [0002] Building energy consumption accounts for 40% of global energy consumption, and with the continuous development of society, building energy consumption is still rising. The International Energy Agency (IEA) predicts that according to the current growth rate, the energy demand of the construction industry will rise to 160EJ in 2060, which will put a huge pressure on the primary energy supply. Therefore, governments of all countries regard building energy conservation as extremely important. At present, the commonly used building energy-saving measures include the following: wall thermal insulation technology, door and window energy-saving technology and roof energy-saving technolog...

AI Technical Summary

Problems solved by technology

[0004] The patent with the application number 201811016240.5 describes a prefabricated combined energy-saving wall with replaceable phase change materials and its production and installation method. In this method, the energy-saving wall panels containing phase change materials are fixed on the surface of the load-bearing components of the building structure by splicing. , can achieve the effect of replacing the phase change material without dismantling the wall, but this method is cumbersome and difficult to operate

[0005] The patent application No. 201710756579.8 describes an energy storage building wall structure containing double-layer phase change material panels. The thermal performance is not good, and the phase change material board needs to be bonded into the cavity of the aluminum veneer through structural glue, which is a complicated process

[0006] As mentioned above, most of the existing technologies combine a single phase change material with the building envelope, so it can only play a significant role in energy saving and temperature regulation in one season, and has little effect in the whole year

In addition, two layers of shaped phase-change wall panels are used, and the outer layer of the wall and the inner layer of the wall are arranged respectively. The wall arranged in this way can play the role of energy storage in summer and winter, but the effect is not ideal. In addition, because the temperature is along the direction of heat transfer is gradually reduced, and due to the characteristics of the phase change material itself, there will be a serious temperature control hysteresis problem, so it will be limited in practical applications

Images