Intermittent on-off type mass concrete cooling water supply control system

Abstract

The invention provides an intermittent on-off type mass concrete cooling water supply control system which comprises a concrete temperature acquisition system, a control terminal, a wireless control switch, an electric valve and a wireless hot point, wherein the control terminal consists of a computer provided with control software; the control terminal is used for automatically acquiring the temperature data of the concrete temperature acquisition system through a network, comparing the temperature data with set control object temperature and then sending out a control signal; the control signal is sent to the wireless control switch through the wireless hot point; the wireless control switch is used for controlling the on-off or opening and closing of the electric valve, so as to realize the following functions: i.e., when the concrete temperature is greater than the set control object temperature, the electric valve is opened, and water supply and cooling are carried out; and when the concrete temperature is less than the set control objective temperature, the electric valve is closed. The system has the advantage that by virtue of setting the control object temperature and utilizing the concrete real-time measured temperature as reference for cooling water supply control, a cooling water flow and temperature sensor is not required to be additionally arranged.

Description

technical field [0001] The invention relates to a large-volume concrete cooling water flow control system, in particular to an intermittent on-off large-volume concrete cooling water flow control system. Background technique [0002] Due to the slow heat transfer of concrete materials, low tensile strength, and the heat generated by the hydration of the internal cement, the large-volume concrete will crack due to the excessive temperature difference between the inside and the outside, resulting in structural damage and reduced durability. For cooling water, that is, to bury water pipes inside the large-volume concrete, and to circulate water with a lower temperature, which can take away heat and reduce the occurrence of concrete cracking. The existing cooling water control method is to manually or automatically adjust the opening of the water valve to control the flow of water, and then achieve the cooling target. This method needs to monitor the flow of water. In the manua...

AI Technical Summary

Problems solved by technology

This method needs to monitor the flow of water. In the manual way, the flow rate needs to be tested manually. In the automated way, flow sensors and flow collection facilities need to be installed, which increases manpower and equipment investment and increases costs.

In the automatic mode, the flow monitoring link is also added, which leads to system instability

[0003] Chinese patent 201010219769.4, publication number: CN 101871266 B, discloses an automatic concrete cooling water data acquisition system, which can automatically identify the position information of the cooling water pipe, and realizes automatic testing and data transmission of the flow rate and water temperature of the concrete cooling water , to solve the shortcomings of manual test records that require a lot of labor, slow information feedback and low accuracy, save time and effort, high measurement accuracy and rapid feedback, can timely adjust concrete temperature control measures, avoid concrete cracks, and realize timely adjustment of concrete construction measures , Guarantee the quality and progress of the project

[0006] However, the above-mentioned control methods and methods all require the data of the water flow rate, that is, a flow sensor must be installed, and the environment of the water flow site is usually harsh, and the water quality is poor, so that the flow sensor cannot work normally.

Images