Phase change thermal storage curing device for concrete structure in cold environment and its realization method

Abstract

The invention is a phase-change thermal storage maintenance device for concrete structures in cold environments and a realization method thereof, which is suitable for the maintenance of concrete in low-temperature environments during construction in autumn and winter and construction in alpine regions. Through the device, solar energy can be used to maintain concrete and equipment efficiently. Insulation is carried out to ensure the normal development of concrete strength in low-temperature environments and to prevent low-temperature damage to equipment, which is conducive to the normal advancement of the construction process in low-temperature environments. This maintenance method can effectively evaluate the effect of phase change energy storage materials in combination with regions, and provides selection criteria for the types of phase change materials required for construction in different regions. This method can also be used to judge whether the local photothermal conditions are suitable for maintenance devices. It gives the direct guidance for judging whether the solar energy is enough for the phase change energy storage material phase change, and what effect the phase change material will achieve under the solar energy condition. By proposing related formulas, the application and design of phase change materials guide.

Description

Phase change heat storage and curing device for concrete structure in cold environment and its realization method technical field The invention belongs to the technical field of civil engineering, be specifically related to a kind of phase change heat storage conservation of cold environment concrete structure Apparatus and method for implementing the same. Background technique When carrying out construction in alpine regions or in winter, due to the lower temperature environment, the cement hydration rate in the concrete decreases. Low or even terminated, causing the concrete strength to not continue to increase, especially when the temperature is below 0 °C, the water in the concrete will be distributed When frozen, the concrete is prone to brittle cracking, resulting in the phenomenon of "crisp". Therefore, in a low temperature environment, the insulation of concrete is Thermal measures are very important; at present, on-site heating is mainly through electric he...

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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