Intelligent control system and method for medium heat exchange

Abstract

The invention belongs to the technical field of intelligent medium heat exchange and temperature control construction of civil engineering, and provides an intelligent control system and method for medium heat exchange. The intelligent control system for the medium heat exchange comprises a heat exchange device, a heat exchange auxiliary device and control devices; a plurality of integrated flow temperature control devices are arranged in a flow temperature medium integrated control cabinet; the flow temperature medium integrated control cabinet and a data acquisition, analysis and feedback intelligent control cabinet are arranged in a heat exchange medium loop; the control devices are used for controlling heat exchange media to finish heat exchange with a target area through the loop, theheat exchange auxiliary device and the heat exchange device. The intelligent control system has the beneficial effects that, by adopting intelligent PID algorithm control, the maximum temperature control in the heat exchange process, coordinated gradient control over the spatial temperature variation rate in the whole process of heat exchange of the target area, and control over the abnormal temperature control conditions in the heat exchange process of the target area are performed through a gradient closed-loop intelligent learning control method, and various emergencies and abnormalities can be handled effectively.

Description

technical field [0001] The invention belongs to the technical field of civil engineering intelligent water flow temperature control construction, and in particular relates to a medium heat exchange intelligent control system and method. Background technique [0002] For extra-high arch dams, the focus of anti-cracking during the construction period is concrete temperature control. The temperature problem of arch dam concrete should be solved mainly from two aspects: controlling temperature and improving restraint. From the perspective of temperature control, the concrete pouring temperature, the maximum concrete temperature and the final stable temperature are three characteristic temperatures, and the maximum temperature is equal to the pouring temperature plus the temperature rise of the heat of hydration. The final stable temperature depends on the local climate conditions and the structural form of the dam body, so the main control in engineering is the pouring temperat...

AI Technical Summary

Problems solved by technology

[0006] (1) The wiring is messy and the functions are not concentrated, which cannot meet the complex construction environment on site, and the installation workload of the site equipment is heavy, there are many wirings, the equipment is easy to be damaged and stolen, and it is not easy to troubleshoot and maintain;

[0007] (2) The data accuracy of the existing system is poor, the data transmission efficiency is low, the collection time interval is long, and the information feedback is slow, which often leads to unsatisfactory concrete temperature control;

[0008] (3) The opening of the circuit cannot be pre-set in batches, which delays the construction progress;

[0009] (4) The data acquisition equipment is separated from the control equipment, the equipment is basically not interconnected, the scalability is poor, and a dedicated network and optical fiber are required, which brings difficulties and inconveniences to control the temperature of the dam concrete

[0010] (5) Basically adopt conventional data processing methods and means, without introducing new methods of current AI and deep learning

[0011] In addition to the construction occasions of arch dams, other large-volume concrete artificial buildings also have the need for water and heat exchange during the formation process, such as the foundation of large buildings and the caps of large bridges. At present, many places are relatively primitive. Extensive manual adjustment of water pipeline valves, supplemented by the management method of fixed-point temperature measurement, there is no complete system and control method

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