High-frequency current heating and maintaining method for reinforced concrete component production

A reinforced concrete, high-frequency current technology, applied in ceramic molding machines, manufacturing tools, etc., can solve the problems of serious boiler combustion pollution, large maintenance bin area, large steam water consumption, etc., to shorten the concrete solidification cycle, improve Concrete setting speed and the effect of improving concrete strength

Inactive Publication Date: 2018-08-24
GUANGZHOU SUNTRANS MEASUREMENT & CONTROL SYST
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology is to put the reinforced concrete components into a curing warehouse or room after pouring and tamping the concrete, and pass the steam generated by the boiler into the high-temperature curing warehouse to realize the high-temperature curing of the reinforced concrete components, but the steam high-temperature curing process exists The following disadvantages: serious boiler combustion pollution, large maintenance warehouse area, large steam water consumption, high cost

Method used

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  • High-frequency current heating and maintaining method for reinforced concrete component production

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Comparison scheme
Effect test

Embodiment 1

[0032] For reinforced concrete members that meet the condition of "both ends have steel bar ends that pass through the concrete", based on the above-mentioned inventive concept, the method of this embodiment 1 can be used for concrete maintenance:

[0033] The two output terminals of the high-frequency current generating device are electrically connected to the ends of the steel bars at both ends of the reinforced concrete member, so that the high-frequency current output by the high-frequency current generating device flows through the steel bars in the reinforced concrete member, so that the steel bars in the reinforced concrete member Heat is generated on the steel bars, causing the heat to act on the concrete of the reinforced concrete member.

[0034] Therefore, by loading the high-frequency current on the steel bar of the reinforced concrete member, the high-frequency current is used to generate heat through the distributed resistance of the steel bar, and the converted h...

Embodiment 2

[0036] For all types of reinforced concrete members, including reinforced concrete members that meet the condition of "both ends have steel bar ends that penetrate the concrete" and reinforced concrete members that do not meet this condition, based on the above-mentioned inventive concept, this implementation method can be adopted. Carry out concrete curing in the way of Example 2:

[0037] The high-frequency current generated by the high-frequency current generator is converted into heat through the heating coil, that is, the two output terminals of the high-frequency current generator are electrically connected to the two ends of the heating coil, and the heating coil is installed inside a tubular curing body The tubular curing body can be a square tube or a round tube. The outer wall of the tubular curing body is covered with an insulating layer. A circulating fan is also installed inside, and when the two insulation doors of the tubular curing body are closed, the circulat...

Embodiment approach

[0041] As a preferred embodiment of the present invention: as figure 1 As shown, the high-frequency current generator is equipped with a rectifier circuit, a full-bridge inverter circuit, a multi-channel switching circuit, a high-frequency transformer, a microprocessor, and an output terminal of the generator; the rectifier circuit converts the AC input from the external power supply into DC, and the The direct current is input into the full-bridge inverter circuit, and the full-bridge inverter circuit converts the input direct current into high-frequency alternating current, and the microprocessor can control the frequency of the high-frequency alternating current output by the full-bridge inverter circuit, wherein the microprocessor preferably passes PWM The signal controls the frequency of the high-frequency alternating current output by the full-bridge inverter circuit, and the multi-way switching circuit has one input terminal and multiple output terminals, and the high-fr...

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Abstract

The invention discloses a high-frequency current heating and maintaining method for reinforced concrete component production. In the reinforced concrete component production process through the high-frequency current heating and maintaining method, when a reinforced concrete component needs to be subjected to concrete maintaining, a high-frequency current generation device is used for generating high-frequency current loaded to a steel bar or a heating coil, accordingly, the high-frequency current is converted into heat, and heat obtained through conversion acts on the concrete of the reinforced concrete component. The high-frequency current is converted into heat so that the whole reinforced concrete component can be heated, water contained in the concrete of the reinforced concrete component is vaporized through temperature rise, and therefore by means of the high-frequency current heating and maintaining method, the solidifying period of the concrete of the reinforced concrete component can be shortened, the concrete intensity of the reinforced concrete component is improved, and the reinforced concrete component production efficiency is improved. Meanwhile, compared with a high-temperature steam maintaining technology in the prior art, the high-frequency current heating and maintaining method is more environment-friendly, more energy is saved, cost is lower, and convenienceis higher.

Description

technical field [0001] The invention relates to a high-frequency current heating and curing method used in the production of reinforced concrete components. Background technique [0002] After the concrete is poured and tamped, the reason why it can gradually set and harden is mainly due to the hydration of the cement, and the hydration takes a long time. Therefore, in order to promote the concrete solidification, strengthen the hardness and increase the output of concrete products, it is usually necessary to Heat curing of concrete products. The existing technology is to put the reinforced concrete components into a curing warehouse or room after pouring and tamping the concrete, and pass the steam generated by the boiler into the high-temperature curing warehouse to realize the high-temperature curing of the reinforced concrete components, but the steam high-temperature curing process exists The following disadvantages: boiler combustion pollution is serious, the maintena...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B11/24
CPCB28B11/245
Inventor 郑贵林
Owner GUANGZHOU SUNTRANS MEASUREMENT & CONTROL SYST
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