Intelligent temperature-control electrical tracing heat insulating formwork and electrical tracing method

Abstract

The invention relates to the technical field of engineering construction, in particular to an intelligent temperature-control electrical tracing heat insulating formwork for performing heating, heat insulating and curing on concrete intelligently. A heating cable and a polyurethane insulation coating are arranged in the intelligent temperature-control electrical tracing heat insulating formwork, heat emitted by the heating cable is directly transmitted to the concrete through a panel, the polyurethane insulation coating has good heat insulation performance, automatic operation control can be realized by an intelligent integrated electrical control device, and the intelligent temperature-control electrical tracing heat insulating formwork has the advantages of high heat energy utilization efficiency, good heat insulation performance and high intelligent control degree; a special structure of the electrical tracing heat insulating formwork replaces an electric heating wire and a heat insulating cotton curtain arranged in concrete, and material expenses are saved; the labor cost is saved through automatic operation control; electric heating is used for replacing a steam curing manner, and the environment protection effect is improved; accordingly, compared with a traditional heating curing method, the intelligent temperature-control electrical tracing heating insulating formwork has the advantages of reduction of construction costs, energy conservation, environmental protection and the like.

Description

technical field [0001] The invention relates to the technical field of engineering construction, in particular to an intelligent temperature-controlled electric heat-tracing and heat-preservation formwork, and more specifically, an electric heat-trace heat preservation formwork capable of intelligently heating, heat-preserving and curing concrete. Background technique [0002] At present, due to its own characteristics, the temperature of concrete during outdoor pouring in winter must not be lower than 5°C, otherwise insulation measures must be taken. The average daily temperature in winter in cold regions is below -19°C. At present, outdoor concrete construction generally adopts electric heating method and covers the insulation layer. Such as figure 1 As shown, before the concrete is poured on the high-speed railway bridge pier in the cold area, the electric heating wire 1' is tightly wound with the steel cage, and then the concrete is poured. The electric heating wire 1' ...

AI Technical Summary

Problems solved by technology

[0003] More specifically, combine figure 1 , first of all, a unit volume of concrete needs to place a sufficient length of electric heating wire 1' to ensure that the required temperature is reached. The electric heating wire 1' remains in the solidified concrete and cannot be reused, which increases construction costs

Secondly, the electric heating wire 1' is easily damaged or broken during the winding process or cement vibration, resulting in leakage or unusable

Again, the thermal insulation effect of the cotton curtain insulation layer 2' is poor, and it loses its thermal insulation function after soaking in water and freezing

[0004] combine figure 2 , because the electric heating wire 1 is wound around the periphery of the steel formwork, the back keel of the steel formwork reduces the contact area between the electric heating wire 1' and the formwork, thereby reducing the thermal conductivity of the formwork

Secondly, if the wooden formwork is used instead, the heat conduction effect of the formwork will be worse because of the good heat insulation effect of the wood material

Again, the thermal insulation effect of the cotton curtain insulation layer 2' is poor, and it loses its thermal insulation function after soaking in water and freezing

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