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Large-sized concrete automatic temperature control and maintenance device and method

A large-volume concrete and automatic temperature control technology, which is applied in construction, infrastructure engineering, etc., can solve problems such as concrete cracks and achieve the effect of increasing the surface temperature

Active Publication Date: 2014-01-22
CHINA FIRST METALLURGICAL GROUP
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a large-volume concrete automatic temperature control and maintenance in view of the defect that the large-volume concrete temperature difference between the internal temperature and the external temperature is too large during the construction process in the prior art to cause cracks in the concrete. Temperature control and curing device and method

Method used

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  • Large-sized concrete automatic temperature control and maintenance device and method

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Embodiment approach

[0062] The main implementation method of mass concrete temperature control device of the present invention is as follows:

[0063] 1. During the construction of the blast furnace foundation, according to the label, volume, area and thickness of the concrete to be poured, the internal cooling pipe (that is, the heat dissipation water pipe and the cooling water pipe 14) (Dφ50 steel pipe) is pre-buried according to the actual needs, according to the vertical and horizontal distances The requirement that they are all less than 1m is evenly distributed inside the concrete, and connected in series with the φ219 main pipe outside the pouring body.

[0064] 2. Pre-embed the temperature measuring device inside the foundation. Starting from the center of the blast furnace, a total of 5 temperature monitoring stations are arranged in the horizontal direction, and each temperature monitoring station is equipped with 3 temperature monitoring point probes in the vertical direction (the embe...

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Abstract

The invention discloses a large-sized concrete automatic temperature control and maintenance device and method, wherein the temperature control device comprises a water circulation system, a temperature measuring device and a temperature control system. The water circulation system comprises a hot water cabin, a cold water cabin, a heat-preservation water tube and a cooling water tube, the cold water cabin is arranged outside a concrete foundation, the cooling water tube is buried inside the concrete, the hot water cabin is arranged at the top of the concrete foundation, and a heater is arranged in the hot water cabin. The heat preservation water tube is buried in the upper portion of the concrete foundation in advance and is respectively communicated with the hot water cabin and the cold water cabin, and a sprayer is arranged on the heat preservation water tube. The temperature measuring device is buried inside the concrete foundation in advance and is connected with the temperature control system. The temperature control system is connected with the water circulation system, and the water circulation of the water circulation system is controlled according to the temperature measured by the temperature measuring system. According to the large-sized concrete automatic temperature control and maintenance device and method, the monitoring and automatic adjustment of the temperature, the flowing speed and pressure of the cooling water and heat-preservation water are achieved through the temperature control system, and the timing automatic spraying and maintenance function can also be achieved.

Description

technical field [0001] The invention relates to the pouring and maintenance of large-volume concrete, in particular to an automatic temperature control and maintenance device and method for large-volume concrete. Background technique [0002] During the construction of large-volume concrete such as blast furnace foundations, due to the effect of heat of hydration, the temperature difference between the internal temperature of the concrete and the surface temperature is huge, resulting in uneven shrinkage of the concrete and harmful cracks. Under normal circumstances, the method of pre-buried circulating water pipes inside the concrete for cooling and surface insulation is used to reduce the temperature difference between inside and outside. Surface insulation methods include steam insulation method, greenhouse insulation method, covering insulation cotton insulation method, etc., but these insulation methods cannot be used under any conditions due to site and environmental c...

Claims

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Application Information

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IPC IPC(8): E02D15/02
Inventor 孙世喜邱国平
Owner CHINA FIRST METALLURGICAL GROUP
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