Phase change heat storage curing device for concrete structure in cold environment and implementation method of phase change heat storage curing device

Abstract

The phase-change heat-storage curing device for the concrete structure in the cold environment and the implementation method of the phase-change heat-storage curing device are suitable for curing concrete under the low-temperature environment of construction in autumn and winter and construction in alpine regions, and by means of the device, solar energy can be efficiently utilized for curing the concrete, heat preservation is conducted on equipment, and the service life of the equipment is prolonged. Therefore, normal development of concrete strength in a low-temperature environment is ensured, low-temperature damage of equipment is prevented, and normal promotion of a construction process in the low-temperature environment is facilitated. The maintenance method can effectively evaluate the effect and the like of the phase-change energy storage material in combination with regions, provides a selection standard for the types of phase-change materials required by construction in different regions, can also judge whether local photo-thermal conditions are suitable for the maintenance device or not, and provides a method for judging whether solar energy is enough for phase change of the phase-change energy storage material or not. The application and design problems of the phase-change material can be guided by proposing related formulas under the solar energy condition and the direct guidance of the phase-change material to obtain what effect under the solar energy condition.

Description

technical field [0001] The invention belongs to the technical field of civil engineering, and in particular relates to a phase change heat storage maintenance device for concrete structures in a cold environment and a realization method thereof. Background technique [0002] When construction is carried out in the alpine region or in winter, due to the low temperature environment, the hydration rate of the cement in the concrete decreases or even stops, resulting in the inability of the concrete strength to continue to increase. Especially when the temperature is below 0°C, the moisture in the concrete freezes, and the concrete is easy to Brittle cracking occurs, resulting in the phenomenon of "crisp". Therefore, in a low temperature environment, it is very important to take insulation and heating measures for concrete; at present, on-site heating mainly uses electric heating or fuel to heat up the site. However, these two methods consume a lot of energy. When using electri...

AI Technical Summary

Problems solved by technology

However, solar resources vary greatly in time and space

Phase change materials can store a large amount of energy through the transition of phase state, and the use of phase change materials for solar energy storage can overcome the uneven distribution of solar energy in time; however, due to the differences in solar energy resources in different regions, it is difficult to judge the solar energy resources in this region with existing methods Whether it meets the energy requirements of the phase change of the phase change material, and there are few methods to guide how to design the phase change material according to the solar energy resources in the corresponding area, so as to maximize the utilization of the phase change material in the local solar environment

[0004] Therefore, the present invention provides a phase-change heat storage maintenance device for concrete structures in cold environments and its implementation method. The concrete is cured by using sunlight and heat, and the phase-change materials are designed for different solar-light-thermal conditions, which solves the problem of solar time and space. In the case of uneven distribution, it provides a set of solutions suitable for solar energy in different regions for photothermal phase change conservation

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