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Intelligent cooling water passage system for concrete

A concrete and cooling water pipe technology, which is applied in the field of concrete water cooling temperature control system, can solve the problems of regulation lag, limited detection data, and poor monitoring environment, and achieve the effects of reducing temperature gradient, preventing cracks, and reducing temperature tensile stress

Inactive Publication Date: 2012-10-03
HUBEI GEZHOUBA TESTING
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0004] The cooling water pipes and monitoring instruments of concrete dam blocks are usually introduced into the construction or traffic corridors. The monitoring environment is harsh, and the workload of monitoring and regulation is very heavy. At the same time, it is necessary to sort out and analyze the monitoring data, and then carry out regulation, resulting in lagging regulation and requiring a manual The detection of one data, the daily detection data is limited, the sudden change of temperature control and water supply cannot be timely fed back, and the unfavorable factors such as the sudden rise and fall of some concrete block temperature cannot be timely fed back and adjusted, and the spatial temperature field of the dam cannot be adjusted. Timely and effective monitoring of mutations will affect the quality of dam water cooling, which is not conducive to the control and management of project quality

Method used

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  • Intelligent cooling water passage system for concrete

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Take the structure of a control unit of the concrete intelligent cooling water system as an example:

[0024] 1) Install a temperature sensor in the concrete to measure the actual temperature of the concrete;

[0025] 2) An electric control valve and a flow sensor are installed on the cooling water pipe, and a temperature sensor is installed at the water inlet and outlet;

[0026] 3) A measurement and control device is installed near the electric control valve. The measurement and control device is connected to the sensor and the electric control valve through a cable, so as to obtain the temperature information of the concrete, the temperature of the cooling water pipe, the flow information and the opening degree information of the electric control valve, and give the electric control valve send control signals;

[0027] 4) Multiple measurement and control devices are connected to the industrial computer through the industrial bus. Each measurement and control device ...

Embodiment 2

[0030] It should be noted that different concrete blocks require cooling water of different temperatures to cool down, so in many projects, more than one cooling water pipe system will be arranged, usually two cooling water pipes with different water temperatures. As an optimized solution, compared with the previous embodiment, two or more electric control valves are installed at the water inlet or outlet of the cooling water pipe, which communicate with main water pipes with different water temperatures respectively.

[0031] Such as figure 1 Among them, taking a control unit structure as an example, the sensor data that needs to be collected include flow rate, water inlet temperature, water outlet temperature, and concrete temperature; what needs to be controlled is an electric control valve, and the collection and control signals are all passed through the measurement and control device, field bus and industrial computer. Connect to realize automatic data collection, and th...

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Abstract

The invention relates to an intelligent cooling water passage system for concrete, which is characterized in that (1) a temperature sensor is installed in the concrete and is used for measuring the temperature of the concrete; (2) a flow sensor, a temperature sensor and an electric control valve are installed on a cooling water pipe; (3) measurement and control devices are installed near the electric control valve and are connected with the sensors and the electric control valve through cables; (4) a plurality of the measurement and control devices are connected with an industrial control computer through an industrial bus; and (5) according to temperature, flow signals and opening information acquired by the measurement and control devices, a program in the industrial control computer sends control signals for controlling the electric control valve, and the measurement and control devices control the opening of the electric control valve and regulate the water passage flow and the water passage temperature, thereby realizing the purpose of reducing the temperature gradient to the maximum, reducing the tension stress of the temperature of the concrete, and achieving the effect on preventing cracks from occurring on the concrete.

Description

technical field [0001] The invention relates to a concrete water cooling temperature control system. Background technique [0002] The water cooling and cooling of mass concrete in water conservancy and hydropower projects is a technical measure that must be taken to solve the temperature stress caused by the heat of hydration of dam concrete in water conservancy and hydropower projects and to meet the design requirements for sealing arch grouting temperature. The water cooling technology of water conservancy and hydropower projects is complex, and it is an important part of engineering construction design and research. Currently, the monitoring of water cooling is manually recorded, and then manually adjusted according to the recorded data. [0003] Water cooling needs to be adopted according to the specific construction conditions in the early, middle and late stages, and the cooling water flow should be adjusted according to the temperature changes monitored by the instru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B40/00
Inventor 周厚贵谭恺炎陈军琪郭光文余英马金刚戴志清夏雨
Owner HUBEI GEZHOUBA TESTING
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