Electrothermal heating maintenance device inside concrete

A technology of concrete and electric heating, applied in the direction of ceramic molding machines, manufacturing tools, etc., can solve the problems of unfavorable protection of human living environment, low thermal efficiency, slow construction, etc., and achieve the effects of avoiding defect repair costs, improving thermal efficiency, and reducing engineering costs

Inactive Publication Date: 2009-11-18
CHINA CONSTR FIRST BUILDING GRP CORP LTD +2
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  • Abstract
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Problems solved by technology

[0003] In order to overcome the deficiencies of the prior art, the present invention provides an electric heating curing device inside concrete to solve the technical problems of low thermal efficiency, serious waste, slow construction and extremely unfavorable protection of human living environment in traditional concrete curing methods

Method used

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  • Electrothermal heating maintenance device inside concrete
  • Electrothermal heating maintenance device inside concrete
  • Electrothermal heating maintenance device inside concrete

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Embodiment Construction

[0031] Examples see figure 1 As shown, this concrete internal electric heating maintenance device includes a closed greenhouse 1 on the top of the building under construction, a lifting protective frame 2 on the side of the building under construction and a preheating heater 3 inside the building under construction, It is characterized in that: the structural steel bars inside the concrete 7 of the building during construction are bound with heating resistance wires 4 , and the heating resistance wires 4 are connected to the power supply through the low-voltage power supply cables 5 outside the concrete 7 . see Figure 11 , The heating resistance wire 4 is connected to the low-voltage power supply cable 5 outside the concrete. In this embodiment, the low-voltage power supply cable 5 is a three-phase main cable.

[0032] see Figure 2-9 , the lifting protective frame 2 includes a frame body and a safety net 2.3 attached to the frame body, the frame body is formed by cross-con...

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Abstract

The invention provides an electrothermal heating maintenance device inside concrete, wherein a heating resistance wire is bundled on the structural reinforcing steel bar inside concrete of buildings in construction, the heating resistance wire is connected with a power supply via a low-voltage power supply cable outside the concrete, a lifting protective frame comprises a frame body and a safety net attached to the frame body, the frame body is formed by cross connection of a vertical main keel with transverse sub-keels, the left side and the right side of the frame body are connected with vertical edge steel tubes, the vertical main keel is connected with the floor of building via a wall-attached hanging part, the frame body is a steel-wood structure, the top of the vertical main keel is provided with H-shaped steel provided with lifting holes, and the vertical main keel is also used as vertical guide rail. By using the manner of internal heating, the device has high heat efficiency and low thermal loss, and can save a great deal of energy; the heating speed of concrete can be reliably guaranteed, and the temperature is easily controlled; the maintenance conditions of concrete are good, and the construction quality can be guaranteed; the early strength of concrete is high, thereby creating favorable conditions for continuous upper construction and shortening the construction period.

Description

technical field [0001] The invention relates to a concrete maintenance device, in particular to a concrete maintenance device for construction of reinforced concrete structure engineering in cold regions. Background technique [0002] When constructing reinforced concrete structures in cold regions, when the components to be constructed have small sections and large surface coefficients, the heat of hydration generated by the concrete itself is far from being able to meet the temperature required for curing. In order to meet the requirements of concrete curing conditions and construction period, and improve the early strength of concrete, the traditional method generally adopts surface insulation and external heating methods. However, the traditional method has the disadvantages of large heat loss and low thermal efficiency, and the quality of the cured concrete is low, which will affect the construction speed; and the traditional method is not only economically wasteful, bu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28B11/24
Inventor 李洪海黄勇徐巍王江任庆新赵向前杨波吴月华欧亚明冯世伟高俊峰
Owner CHINA CONSTR FIRST BUILDING GRP CORP LTD
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