Intelligent control device for mass concrete cooling circulation pipe

Abstract

The utility model provides an intelligent control device for a mass concrete cooling circulating pipe, which comprises a main pipe, the main pipe is used for being connected with a water inlet device, the main pipe is connected with a plurality of water inlet branch pipes, and each water inlet branch pipe is provided with a flow regulating valve, a first temperature sensor and a controller. The controller is used for being connected with a second temperature sensor arranged in the mass concrete so as to receive the temperature in the mass concrete and sending out an instruction for controlling the flow regulating valve according to the temperature; communication equipment is further arranged and used for receiving and transmitting data and instructions in a wireless mode. By arranging the temperature sensor and the adjustable flow valve and combining an automatic control system and a wireless communication technology, real-time monitoring and automatic adjustment of the internal temperature of concrete are achieved, the temperature difference is effectively controlled, and cracks are prevented. The device is simple, easy to use and convenient to maintain, the strength of manual action is reduced, the production efficiency is improved, and meanwhile the product quality is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of concrete equipment, and in particular to an intelligent control device for a large-volume concrete cooling circulation pipe. Background Technology

[0002] In large-volume concrete construction projects, the hydration reaction after concrete pouring is a crucial process for enhancing concrete strength. The hydration reaction releases a significant amount of heat, causing varying degrees of temperature increases both inside and outside the concrete, resulting in a temperature difference. Because the exterior of the concrete is in contact with air, its temperature rises relatively slowly, while the interior experiences a more pronounced temperature increase due to the hydration reaction. This internal and external temperature difference can gradually increase in the early stages, making the concrete more prone to cracking and negatively impacting its structural performance and service life.

[0003] To effectively control the temperature difference between the inside and outside of the concrete and prevent excessively high internal temperatures, it is common practice to pre-install cooling pipes in the concrete structure and then circulate cooling water after pouring. The circulating flow of cooling water effectively removes heat from the concrete, lowering the temperature and reducing the temperature difference between the inner and outer surfaces. However, in the later stages, as the hydration reaction slows down, the temperature rise gradually plateaus, and the temperature eventually begins to decrease. At this stage, how to rationally and automatically adjust the flow rate and volume of the cooling water to control the cooling rate remains a technical challenge. Traditional methods for adjusting the process parameters of the cooling water pipes mainly rely on manual monitoring and on-site data collection and control. This approach has many drawbacks, such as poor accuracy of monitoring data, low temperature control efficiency, and significant susceptibility to human factors. Alternatively, using fiber optic sensors can result in inaccurate data and susceptibility to damage. This not only increases construction difficulty and cost but may also negatively impact the temperature control of the concrete. Utility Model Content

[0004] The main purpose of this utility model is to provide an intelligent control device for cooling circulation pipes of large-volume concrete, which solves the problem of how to achieve more precise, efficient and automated temperature control during the construction of large-volume concrete. It can sense the dynamic temperature of concrete in real time, control the water flow rate, and realize intelligent and precise control of the concrete temperature process.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A smart control device for cooling circulation pipe of large volume concrete, including a main pipe for connecting to a water inlet device, the main pipe for connecting to multiple water inlet branch pipes, a flow regulating valve and a first temperature sensor on each water inlet branch pipe, and a controller for connecting to a second temperature sensor installed in the large volume concrete to receive the temperature in the large volume concrete and issue a command to control the flow regulating valve according to the temperature.

[0006] It is also equipped with communication devices for wirelessly sending and receiving data and instructions.

[0007] In the preferred embodiment, the main pipe is divided into two groups, and the corresponding water inlet branch pipes are also divided into two groups. The two groups of water inlet branch pipes are used to connect the outer ring cooling pipe group and the inner ring cooling pipe group, respectively, in order to control the temperature difference between the inside and outside of the large-volume concrete.

[0008] In the preferred embodiment, each main pipe is used to connect to a water distributor, wherein the water distributor supplying water to the inner ring cooling pipe assembly is equipped with a cooling device.

[0009] In the preferred embodiment, a flow meter is also installed on the inlet branch pipe, and the flow meter is electrically connected to the controller.

[0010] In the preferred embodiment, the controller is a PLC.

[0011] In the preferred embodiment, the communication device is an integrated DUT.

[0012] In the preferred embodiment, the flow regulating valve is a wireless flow regulating valve.

[0013] In the preferred embodiment, the flow meter is a wireless flow meter.

[0014] In the preferred embodiment, a second main pipe is also provided, which is connected to the main pipe through the main valve for flushing the main pipe.

[0015] In the preferred embodiment, a housing is also provided, in which the main pipe, inlet branch pipe, flow regulating valve, controller and communication equipment are all housed. The outer wall of the housing is provided with an inlet through hole for the main pipe and a branch pipe through hole for the inlet branch pipe, which are housed in a separate electrical control box, which is equipped with a ventilation fan.

[0016] This invention provides an intelligent control device for cooling circulation pipes in large-volume concrete. When using this device, cooling water is first supplied to the main pipe via an inlet device, and then distributed to different areas inside the concrete via multiple inlet branch pipes. A flow regulating valve and a first temperature sensor on each inlet branch pipe monitor and regulate the flow rate and temperature of the cooling water. Simultaneously, a second temperature sensor located inside the concrete detects the internal temperature in real time and transmits the data to the controller.

[0017] Based on this temperature data, the controller sends commands to the flow regulating valve via wireless communication equipment, automatically adjusting the valve opening to control the cooling water flow and ensure that the internal temperature of the concrete remains within the set range. The system is also equipped with auxiliary facilities such as a water distributor, water pump, and return water storage tank to maintain cooling water circulation and to keep the water clean through a filtration device. Flow meters are used to collect flow data from the inlet branch pipes to further ensure consistent cooling performance.

[0018] This device uses a PLC as the controller, offering excellent anti-interference capabilities and flexibility, making it suitable for industrial environments. Wireless flow control valves and flow meters simplify installation, reduce maintenance workload, and improve system reliability and safety. The display screen inside the enclosure shows key parameters such as cooling water flow and temperature in real time, facilitating operator monitoring of the system status. Therefore, this device effectively controls temperature distribution during large-volume concrete pouring, ensuring construction quality. Attached Figure Description

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0020] Figure 1 This is an overall structural diagram of the intelligent circulating pipe cooling control system device in an embodiment of the present invention;

[0021] Figure 2 This is a structural diagram of the intelligent circulating pipe cooling control device in an embodiment of the present invention;

[0022] Figure 3 This is a front view of the housing of the intelligent circulating pipe cooling control device in an embodiment of the present invention;

[0023] Figure 4 This is a left view of the housing of the intelligent circulating pipe cooling control device in an embodiment of the present invention;

[0024] Figure 5 This is a right view of the housing of the intelligent circulating pipe cooling control device in an embodiment of the present invention;

[0025] Figure 6 This is a cross-sectional view of the intelligent circulating pipe cooling control device in an embodiment of the present invention;

[0026] Figure 7 This is a diagram of the internal piping of the intelligent circulating pipe cooling control device in an embodiment of the present invention;

[0027] In the diagram: 1. Box body; 101. First through hole; 102. Second through hole; 103. Branch pipe through hole; 2. Electrical control box; 3. Display screen; 4. Ventilation fan; 5. Main pipe; 51. First main pipe; 52. Second main pipe; 6. Water level gauge; 7. Inlet branch pipe; 701. Outer ring inlet branch pipe; 702. Inner ring inlet branch pipe; 8. Flow regulating valve; 9. Flow meter; 10. First temperature sensor; 11. Main valve; 12. Quick connector; 13. Cooling device; 14. Water distributor; 141. Second water distributor; 142. Water pump; 15. Return water storage tank; 16. Large volume concrete; 17. Outer ring cooling pipe assembly; 18. Inner ring cooling pipe assembly; 19. Network platform; 20. Communication equipment; 21. Filter device; 22. Second temperature sensor; 23. Third temperature sensor; 24. Detailed Implementation

[0028] Example 1

[0029] like Figures 1-7 As shown, an intelligent control device for a large-volume concrete cooling circulation pipe includes a main pipe 5, which is used to connect to a water inlet device. The main pipe 5 is connected to multiple water inlet branch pipes 7. Each water inlet branch pipe 7 is equipped with a flow regulating valve 8 and a first temperature sensor 10. A controller is also provided. The controller is used to connect to a second temperature sensor 23 installed inside the large-volume concrete 17 to receive the temperature inside the large-volume concrete 17 and issue a command to control the flow regulating valve 8 according to the temperature.

[0030] It is also equipped with communication equipment 21 for wirelessly sending and receiving data and instructions.

[0031] The controller is preferably a PLC, and the communication equipment 21 is preferably a LoRaWAN base station from Four-Faith Technology. All sensors are low-power sensors based on the LoRa protocol.

[0032] This invention provides an intelligent control device for a large-volume concrete cooling circulation pipe. Cooling water is introduced into the main pipe 5 through a water inlet device and into each branch pipe 7. The inlet water temperature is controlled by a first temperature sensor 10 and the temperature inside the large-volume concrete 17 is monitored by a second temperature sensor 23. The flow regulating valve 8 is remotely controlled by a controller. The controller sends a control command to the flow regulating valve 8 based on the temperature using a communication device 21. The controller can input the encoding of the wireless temperature sensor and the wireless flow regulating valve, control the time interval, set the temperature gradient, and switch between manual and automatic valve adjustment modes.

[0033] In the preferred embodiment, the main pipe 5 is divided into two groups, including the first main pipe 51 and the second main pipe 52, and the corresponding water inlet branch pipe 7 is divided into two groups, including the outer ring water inlet branch pipe 701 and the inner ring water inlet branch pipe 702. The two groups of water inlet branch pipes 7 are respectively used to connect the outer ring cooling pipe group 18 and the inner ring cooling pipe group 19 to control the temperature difference between the inside and outside of the large volume concrete 17.

[0034] The first main pipe 51 and the second main pipe 52 extend out of the housing 1 through the first through hole 101 and the second through hole 102, respectively, for connecting the water inlet device. By setting the outer ring water inlet branch pipe 701 and the inner ring water inlet branch pipe 702, one end of the outer ring water inlet branch pipe 701 and the inner ring water inlet branch pipe 702 extends out of the housing 1 through the branch pipe through hole 103 and connects to the internal condensation pipe of the concrete, and the other end connects to the outer ring cooling pipe group 18 and the inner ring cooling pipe group 19, the flow rate and temperature of the cooling water entering the inner and outer ring concrete can be precisely controlled to control the temperature difference between the inside and outside of the large volume concrete 17.

[0035] In the preferred embodiment, a third temperature sensor 24 is installed at the inlet and outlet of the outer ring cooling pipe assembly 18 and the inner ring cooling pipe assembly 19. This sensor can measure the inlet and outlet temperatures of the pipes entering the inner ring concrete and the outer ring concrete pipes.

[0036] In a preferred embodiment, the main pipe 5 is used to connect to a water distributor 14, wherein the water distributor 14 supplying water to the inner ring cooling pipe assembly 19 is equipped with a cooling device 13. The water distributor 14 includes a first water distributor 141 and a second water distributor 142.

[0037] The first main pipe 51 and the second main pipe 52 are respectively used to connect the first water distributor 141 and the second water distributor 142. The first water distributor 141 and the second water distributor 142 are respectively connected to the outer ring cooling pipe group 18 and the inner ring cooling pipe group 19. The second water distributor 142 connected to the inner ring cooling pipe group 19 is provided with a cooling device 13 for controlling the temperature of the cooling water entering the inner ring cooling pipe group 19.

[0038] In a preferred embodiment, the other end of the water distributor 14 can be connected to a water pump 15 for controlling the inlet and outlet of water. The water pump 15 can be connected to a return water storage tank 16, which is equipped with a water level gauge 6 and a filter device 22 for obtaining the current water level and filtering the cooling water entering the device.

[0039] In the preferred embodiment, a flow meter 9 is also installed on the inlet branch pipe, and the flow meter 9 is electrically connected to the controller.

[0040] Flow meter 9 is used to collect flow data from the inlet branch pipe 7.

[0041] In the preferred embodiment, the communication device 21 integrates the device under test (DUT) with the testing system, reducing external connections, avoiding signal attenuation and noise interference, and ensuring the accuracy and consistency of monitoring results. Simultaneously, the integrated design makes the device more compact, reduces costs, and enhances its adaptability to different working environments. It communicates with the backend monitoring software, displaying real-time temperature and water flow rate data from each measuring point, as well as temperature curves, temperature difference curves, and flow rate curves to the user.

[0042] In the preferred embodiment, the flow regulating valve 8 is a wireless flow regulating valve. Using a wireless flow regulating valve enables remote control and monitoring, improving production efficiency and safety, while simplifying installation, reducing maintenance costs, and making system expansion more flexible and convenient.

[0043] The wireless flow regulating valve 8 has 10 adjustable opening levels and supports two-way wireless communication. The communication device transmits commands to the wireless flow regulating valve 8, and by adjusting the opening of the valve 8, the water flow in the corresponding branch pipe is controlled. Different regulating valves are relatively independent and can execute different control commands, thereby achieving precise control of the flow in different branch pipes. Heaters can be added to the inlet and outlet water tanks, and their opening and closing can be controlled remotely to adjust the water temperature in the tank, thus controlling the inlet and outlet water temperatures. The flow rate changes caused by the adjustment of the flow valve opening can be collected by the wireless flow meter 9 and sent to the wireless data receiving and communication terminal. The wireless data receiving and communication terminal communicates with the background monitoring software via a GPRS DTU.

[0044] In the preferred embodiment, the flow meter 9 is a wireless flow meter. Using a wireless flow meter enables remote data acquisition and monitoring, improving operational efficiency and accuracy while reducing wiring costs and maintenance workload, and enhancing system flexibility and security. It features wireless two-way communication, low power consumption, battery power, real-time display, and a compact structure. Compared to traditional flow meters with wired power supply and wired signal output, it is more suitable for use on concrete engineering sites, eliminating the need for power and communication cables, making installation easier, more reliable, and easier to maintain.

[0045] In a preferred embodiment, a second main pipe 52 is also provided, which is connected to the inlet branch pipe 7 via the main valve 11 for flushing the main pipe 5 and controlling the inflow of cooling water. The second main pipe 52 is also provided with a quick-connect fitting 12 for easy connection to external pipes or pipe replacement.

[0046] In the preferred embodiment, a housing 1 is also provided. The main pipe 5, the inlet branch pipe 7, the flow regulating valve 8, the controller and the communication equipment 21 are all installed inside the housing 1. The outer wall of the housing 1 is provided with an inlet through hole for the main pipe 5 and a branch pipe through hole 103 for the inlet branch pipe 7. They are installed in an independent electrical control box 2. A ventilation fan 4 is provided in the electrical control box 2.

[0047] The housing 1 is also equipped with a display screen 3, which is used to display the device status and data such as the flow rate and temperature of the cooling water inside the device in real time.

[0048] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. An intelligent control device for large-volume concrete cooling circulation pipes, characterized in that: Includes a main pipe (5), which is used to connect to the water inlet device. The main pipe (5) is connected to multiple water inlet branch pipes (7). Each water inlet branch pipe (7) is equipped with a flow regulating valve (8) and a first temperature sensor (10). It is also equipped with a controller, which is used to connect to a second temperature sensor (23) installed in the large volume concrete (17) to receive the temperature in the large volume concrete (17) and issue a command to control the flow regulating valve (8) according to the temperature. It also includes communication equipment (21) for wirelessly sending and receiving data and instructions.

2. The intelligent control device for a large-volume concrete cooling circulation pipe according to claim 1, characterized in that: The main pipe (5) is divided into two groups, and the corresponding water inlet branch pipes (7) are divided into two groups. The two groups of water inlet branch pipes (7) are used to connect the outer ring cooling pipe group (18) and the inner ring cooling pipe group (19) respectively, so as to control the temperature difference between the inside and outside of the large volume concrete (17).

3. The intelligent control device for a large-volume concrete cooling circulation pipe according to claim 1, characterized in that: The main pipe (5) is used to connect to a water distributor (14), wherein the water distributor (14) that supplies water to the inner ring cooling pipe assembly (19) is equipped with a cooling device (13).

4. The intelligent control device for a large-volume concrete cooling circulation pipe according to claim 1, characterized in that: A flow meter (9) is also installed on the water inlet branch pipe, and the flow meter (9) is electrically connected to the controller.

5. The intelligent control device for a large-volume concrete cooling circulation pipe according to claim 4, characterized in that: The controller is a PLC.

6. The intelligent control device for a large-volume concrete cooling circulation pipe according to claim 1, characterized in that: The communication device (21) is an integrated DUT.

7. The intelligent control device for a large-volume concrete cooling circulation pipe according to claim 1, characterized in that: The flow regulating valve (8) is a wireless flow regulating valve.

8. The intelligent control device for a large-volume concrete cooling circulation pipe according to claim 4, characterized in that: The flow meter (9) is a wireless flow meter.

9. The intelligent control device for a large-volume concrete cooling circulation pipe according to claim 1, characterized in that: A second main pipe (52) is also provided, which is connected to the main pipe (5) via the main valve (11) for flushing the main pipe (5).

10. The intelligent control device for a large-volume concrete cooling circulation pipe according to claim 1, characterized in that: It is also equipped with a box (1), and the main pipe (5), the inlet branch pipe (7), the flow regulating valve (8), the controller and the communication equipment (21) are all installed in the box (1). The outer wall of the box (1) is provided with an inlet through hole for the main pipe (5) and a branch pipe through hole (103) for the inlet branch pipe (7), which are installed in an independent electrical control box (2). A ventilation fan (4) is provided in the electrical control box (2).

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