Large-volume concrete temperature double-path water source cooling system

Abstract

The utility model relates to a large-volume concrete temperature double-path water source cooling system, which comprises a water supply device, a cooler, a water return device, a first three-way valve, a second three-way valve, a cooling pipe and a circulating pump, the water supply device and the cooler are respectively connected with the first three-way valve, and the first three-way valve, the circulating pump, the cooling pipe and the second three-way valve are sequentially connected; the second three-way valve is respectively connected with the water return device and the cooler, the water return device is connected with the water supply device, the water supply device is connected with the cooler, the cooling pipe is arranged in the concrete, the first three-way valve is switchably communicated with the water supply device and the cooler, and the second three-way valve is switchably communicated with the water return device and the cooler. The cooling system disclosed by the utility model can regulate and control the temperature in real time, improves the temperature control precision of the mass concrete, and achieves the purpose of improving the quality of the mass concrete; meanwhile, water in the cooling pipe is recycled, and water and energy are saved; in addition, cooling water and normal-temperature water can be used at the same time, and seamless switching of two paths of water sources is achieved according to the feedback condition of the temperature difference inside and outside the concrete.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete construction, and particularly relates to a large-volume concrete temperature dual-water-source cooling system. Background Art

[0002] After the concrete construction is completed, due to the different heat dissipation speeds inside and outside the concrete, the internal and external thermal expansion and contraction processes will correspondingly generate tensile stress on the concrete surface; when the temperature difference reaches a certain degree and the tensile stress on the concrete surface exceeds the ultimate tensile strength of the concrete at that time, harmful cracks will occur on the concrete surface, and sometimes even through cracks. Therefore, a large-volume concrete temperature control device is needed to control the internal and external temperatures of the concrete; the currently used large-volume concrete temperature control device usually embeds steel pipes in the concrete, supplies water through a water tank during the curing period after the concrete is poured, uses a water pump to pump water to make the water circulate in the water pipes, and takes away a certain amount of heat through the circulation of water in and out of the pipes to cool the inside of the concrete, so as to reduce the temperature of the large-volume concrete; however, the whole process is complicated to operate, has low efficiency, and cannot adjust the water circulation work at any time according to the actual temperature inside the concrete to achieve the purpose of saving resources. For example, Chinese Patent No. CN112360171A discloses a temperature reduction device for large-volume concrete pouring based on the Internet of Things, including a trailer, a cooling water mechanism, a water tank body, a water inlet pipe, a water outlet pipe, an ice delivery mechanism, a rotating seat, etc. 1. The ice delivery device used for cooling the water body in this device is relatively cumbersome and cannot monitor the temperature of the concrete at any time; therefore, it is a problem worthy of research to provide a large-volume concrete temperature control device that can monitor the temperature of large-volume concrete at any time and operate the concrete cooling according to the monitored temperature; 2. In addition, this device does not consider the hydration heat temperature curve, that is, when constructing in summer, the pouring temperature of the concrete is reduced, that is, during the concrete pouring process, the ice delivery cycle should be started according to the feedback of the temperature difference value between the formwork and the concrete, and the hydration heat of the already constructed concrete layer caused by the too high pouring temperature should be reduced as soon as possible, which is likely to cause concrete cracks; 3. During the whole process of curing after pouring, the ice delivery cycle is not started according to the temperature curve throughout the whole process, resulting in excessive energy consumption waste and easy to cause too large a temperature difference loss between the inside and outside and the external environment due to drastic temperature reduction, causing temperature cracks; in addition, when the temperature difference between the inside and outside of the concrete is not large or during winter construction, there is no need to circulate and cool with ice water.

[0003] Therefore, it is necessary to make further improvements. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a large-volume concrete temperature dual-water-source cooling system with simple structure, good cooling effect, energy saving, low cost and strong practicability, so as to overcome the deficiencies of the prior art.

[0005] A large-volume concrete temperature dual-water-source cooling system designed for this purpose is characterized in that it includes a water supply device, a cooler, a water return device, a first three-way valve, a second three-way valve, a cooling pipe and a circulation pump. The water supply device and the cooler are respectively connected to the first three-way valve. The first three-way valve, the circulation pump, the cooling pipe and the second three-way valve are connected in sequence. The second three-way valve is respectively connected to the water return device and the cooler. The water return device is connected to the water supply device, and the water supply device is connected to the cooler. The cooling pipe is arranged inside the concrete. The first three-way valve can be switched to connect the water supply device and the cooler. The second three-way valve can be switched to connect the water return device and the cooler. When the temperature difference between the inside and outside of the concrete is ≥ a specific temperature X, the water supply device, the cooler, the first three-way valve, the circulation pump, the cooling pipe, the second three-way valve and the cooler are connected in sequence to form an ice water cooling circulation water path. When the temperature difference between the inside and outside of the concrete is < a specific temperature X, the water supply device, the first three-way valve, the circulation pump, the cooling pipe, the second three-way valve, the water return device and the water supply device are connected in sequence to form a normal temperature water cooling circulation water path.

[0006] It further includes a control device, and the control device is electrically connected to the first three-way valve and the second three-way valve respectively. When the temperature difference between the inside and outside of the concrete is ≥ a specific temperature X, the control device controls the first three-way valve to switch and connect to the cooler, and the control device controls the second three-way valve to switch and connect to the cooler. When the temperature difference between the inside and outside of the concrete is < a specific temperature X, the control device controls the first three-way valve to switch and connect to the water supply device, and the control device controls the second three-way valve to switch and connect to the water return device.

[0007] A first temperature sensor for detecting the internal temperature of the concrete is arranged on the cooling pipe, and a second temperature sensor for detecting the external temperature of the concrete is arranged on the pipeline between the circulation pump and the cooling pipe. The control device is electrically connected to the first temperature sensor and the second temperature sensor respectively, and the temperature difference between the inside and outside of the concrete is the reading difference between the first temperature sensor and the second temperature sensor.

[0008] The water supply device and the cooler are connected through a two-way connecting pipe, and a first valve is arranged on the two-way connecting pipe. The control device is electrically connected to the first valve. When the temperature difference between the inside and outside of the concrete is ≥ a specific temperature X, the control device controls the first valve to open so that the water supply device is connected to the cooler. When the temperature difference between the inside and outside of the concrete is < a specific temperature X, the control device controls the first valve to close so that the water supply device and the cooler are not connected.

[0009] The water supply device and the water return device are connected through a first return pipe, and a second valve is arranged on the first return pipe. The control device is electrically connected to the second valve. When the temperature difference between the inside and outside of the concrete is ≥ a specific temperature X, the control device controls the second valve to close so that the water supply device and the water return device are not connected. When the temperature difference between the inside and outside of the concrete is < a specific temperature X, the control device controls the second valve to open so that the water return device is connected to the water supply device.

[0010] The water supply device and the first three-way valve are connected through a first water outlet pipe. A third valve is provided on the first water outlet pipe, and the control device is electrically connected to the third valve. When the temperature difference between the inside and outside of the concrete is ≥ a specific temperature X, the control device controls the third valve to close, so that the water supply device and the first three-way valve are not connected; when the temperature difference between the inside and outside of the concrete < the specific temperature X, the control device controls the third valve to open, so that the water supply device is connected to the first three-way valve.

[0011] The cooling pipes are arranged circuitously inside the concrete, and the cooling pipes are evenly distributed in the upper and lower layers inside the concrete.

[0012] The water supply device and the water return device are storage pools or water storage tanks.

[0013] The cooling pipes are made of high-strength and corrosion-resistant metal pipes.

[0014] The cooler and the first three-way valve are connected through a second water outlet pipe. The first three-way valve and the circulation pump, the circulation pump and the cooling pipes are connected through water inlet pipes. The cooling pipes and the second three-way valve, the second three-way valve and the water return device are connected through recycled water pipes. The second three-way valve and the cooler are connected through a second water return pipe.

[0015] The large-volume concrete temperature dual-source water cooling system of the present invention can regulate the temperature in real time, improve the accuracy of large-volume concrete temperature control, and achieve the purpose of improving the quality of large-volume concrete; at the same time, recycle the water in the cooling pipes to save water and energy; in addition, cooling water (ice water) and normal temperature water can be used simultaneously, and seamless switching of dual water sources can be realized according to the feedback of the temperature difference between the inside and outside of the concrete, so that the temperature difference between the inside and the surface of the concrete and the temperature difference between the outside and the atmospheric environment are basically within the controllable value, and cracks caused by too large instantaneous temperature difference due to single ice water can be avoided. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the cooling system in an embodiment of the present invention. Detailed Embodiments

[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] See Figure 1, this large-volume concrete temperature dual-source water cooling system includes a water supply device 1, a cooler 2, a water return device 3, a first three-way valve 4, a second three-way valve 5, a cooling pipe 6, and a circulation pump 7. The water supply device 1 and the cooler 2 are respectively connected to the first three-way valve 4. The first three-way valve 4, the circulation pump 7, the cooling pipe 6, and the second three-way valve 5 are connected in sequence. The second three-way valve 5 is respectively connected to the water return device 3 and the cooler 2. The water return device 3 is connected to the water supply device 1, and the water supply device 1 is connected to the cooler 2. The cooling pipe 6 is arranged inside the concrete 8. The first three-way valve 4 can be switched to connect the water supply device 1 and the cooler 2, and the second three-way valve 5 can be switched to connect the water return device 3 and the cooler 2. When the temperature difference between the inside and outside of the concrete 8 is ≥ a specific temperature X, the water supply device 1, the cooler 2, the first three-way valve 4, the circulation pump 7, the cooling pipe 6, the second three-way valve 5, and the cooler 2 are connected in sequence to form an ice water cooling circulation waterway. When the circulation pump 7 works, the water in the water supply device 1 flows into the cooler 2, then passes through the first three-way valve 4, the circulation pump 7, the cooling pipe 6, and the second three-way valve 5 in sequence and then returns to the cooler 2, and then continuously circulates according to the above flow direction to provide stable and appropriate cooling ice water, ensuring the continuous and effective circulation of the water flow in the cooling pipe 6, thereby efficiently taking away the transient peak hydration heat inside the concrete. It is generally applicable to high-temperature construction in summer. When constructing in high temperature in summer, the ice water cooling circulation is started before the concrete is put into the mold to reduce the pouring temperature of the concrete. When the temperature difference between the inside and outside of the concrete 8 is < a specific temperature X, the water supply device 1, the first three-way valve 4, the circulation pump 7, the cooling pipe 6, the second three-way valve 5, the water return device 3, and the water supply device 1 are connected in sequence to form a normal temperature cooling circulation waterway. When the circulation pump 7 works, the water in the water supply device 1 passes through the first three-way valve 4, the circulation pump 7, the cooling pipe 6, the second three-way valve 5, and the water return device 3 in sequence, and then returns to the water supply device 1, and then continuously circulates according to the above flow direction to provide stable and appropriate normal temperature water, ensuring the continuous and effective circulation of the water flow in the cooling pipe 6, thereby efficiently taking away the lower hydration heat inside the concrete. This cooling system controls the pouring temperature of the concrete during the concrete pouring process. After the concrete pouring is completed, it can monitor at any time the difference between the center temperature and the surface temperature of the large-volume concrete and the difference between the surface temperature of the concrete and the lowest outdoor air temperature, and feedback the monitored temperature difference data to the PLC control system to operate and select cooling water or normal temperature water to cool the concrete in real time, so as to reduce the generation of cracks caused by hydration heat after the concrete is poured.

[0019] The value of the specific temperature X is 30°C, and the specific temperature X can also be set by oneself.

[0020] It also includes a control device, which is electrically connected to the first three-way valve 4 and the second three-way valve 5 respectively. The first three-way valve 4 and the second three-way valve 5 are solenoid valves, and the control device is a PLC control system. When the temperature difference between the inside and outside of the concrete 8 is ≥ a specific temperature X, the control device controls the first three-way valve 4 to switch and connect to the cooler 2, and the control device controls the second three-way valve 5 to switch and connect to the cooler 2. When the temperature difference between the inside and outside of the concrete 8 < the specific temperature X, the control device controls the first three-way valve 4 to switch and connect to the water supply device 1, and the control device controls the second three-way valve 5 to switch and connect to the return water device 3.

[0021] The water outlet of the water supply device 1 is connected to the inlet end a of the first three-way valve 4, the water outlet of the cooler 2 is connected to the inlet end b of the first three-way valve 4, and the outlet end c of the first three-way valve 4 is connected to the circulation pump 7. The cooling pipe 6 is connected to the inlet end d of the second three-way valve 5, the outlet end e of the second three-way valve 5 is connected to the cooler 2, and the outlet end f of the second three-way valve 5 is connected to the return water device 3. The first three-way valve 4 and the second three-way valve 5 are T-shaped three-way ball valves.

[0022] A plurality of first temperature sensors 9 for detecting the internal temperature of the concrete 8 are arranged on the cooling pipe 6, and a second temperature sensor 10 for detecting the external temperature of the concrete 8 is arranged on the pipeline between the circulation pump 7 and the cooling pipe 6. The control device is electrically connected to the first temperature sensor 9 and the second temperature sensor 10 respectively. The temperature difference between the inside and outside of the concrete 8 is the reading difference between the first temperature sensor 9 and the second temperature sensor 10. The first temperature sensor 9 is located inside the concrete 8, and the second temperature sensor 10 is located outside the concrete 8. To realize the switching of the ice water and normal temperature water cooling systems, the PLC control system of this cooling system can make decisions according to the temperature difference between the external temperature sensor and the internal temperature sensor of the concrete set by the temperature monitoring system, and adjust the water outlet directions of the first three-way valve 4 and the second three-way valve 5 to realize the switching of the dual water sources (the first working condition supplies ice water; the second working condition supplies cooling water), and finally ensure that the temperature difference between the inside and outside of the concrete tends to be balanced.

[0023] The first temperature sensor 9, the second temperature sensor 10 and the control device constitute a temperature monitoring system, which is like the "eyes" of the system, measuring the temperatures at different positions inside and outside the concrete in real time and accurately. Through these monitoring data, we can dynamically adjust the flow rate and temperature of the circulating water to achieve precise control of the concrete temperature.

[0024] The PLC control system can interpret the temperature monitoring data in real time for logical processing, make decisions on working condition analysis, and control the selection of cooling water or normal temperature water in the double-loop circulating water path to improve efficiency and achieve precise and rapid cooling; during the construction process, this cooling system can significantly reduce the maximum temperature inside the mass concrete, reduce the temperature difference between the inside and outside, and effectively prevent the generation of temperature cracks; at the same time, it can also accelerate the heat dissipation rate of the concrete through the double-loop water source, shorten the construction period, and improve the project efficiency; the mass concrete cooling system is an important means to ensure the construction quality of mass concrete and provides reliable technical support for building a strong and durable concrete structure.

[0025] The water supply device 1 and the cooler 2 are connected through a two-way communication pipe 11, and a first valve 12 is provided on the two-way communication pipe 11, and the control device is electrically connected to the first valve 12; when the temperature difference between the inside and outside of the concrete 8 is ≥ specific temperature X, the control device controls the first valve 12 to open so that the water supply device 1 is connected to the cooler 2; when the temperature difference between the inside and outside of the concrete 8 is < specific temperature X, the control device controls the first valve 12 to close so that the water supply device 1 and the cooler 2 are not connected.

[0026] The water supply device 1 and the return water device 3 are connected through a first return water pipe 13, and a second valve 14 is provided on the first return water pipe 13, and the control device is electrically connected to the second valve 14; when the temperature difference between the inside and outside of the concrete 8 is ≥ specific temperature X, the control device controls the second valve 14 to close so that the water supply device 1 and the return water device 3 are not connected; when the temperature difference between the inside and outside of the concrete 8 is < specific temperature X, the control device controls the second valve 14 to open so that the return water device 3 is connected to the water supply device 1.

[0027] The water supply device 1 and the first three-way valve 4 are connected through a first water outlet pipe 15, and a third valve 16 is provided on the first water outlet pipe 15, and the control device is electrically connected to the third valve 16; when the temperature difference between the inside and outside of the concrete 8 is ≥ specific temperature X, the control device controls the third valve 16 to close so that the water supply device 1 and the first three-way valve 4 are not connected; when the temperature difference between the inside and outside of the concrete 8 is < specific temperature X, the control device controls the third valve 16 to open so that the water supply device 1 is connected to the first three-way valve 4.

[0028] The cooling pipe 6 is arranged circuitously inside the concrete 8, which can increase the flow path and time of water inside the concrete 8, improve the cooling effect, and the cooling pipe 6 is evenly distributed in the upper and lower layers inside the concrete 8. The cooling pipe 6 is fixed inside the concrete 8 with the pipe support and the vertical branch pipe to the steel bar mesh skeleton, and can maximize the heat exchange with the inside of the concrete and quickly take away the heat.

[0029] The water supply device 1 and the return water device 3 are a water storage tank or a water storage tank. In this embodiment, the water supply device 1 is a water supply pool, and the return water device 3 is a recycled water pool. For the convenience of transferring between multiple large-volume pouring parts, the water pool can be replaced by a large-capacity water storage tank.

[0030] The cooling pipe 6 is made of high-strength and corrosion-resistant metal pipe material (ordinary carbon steel), and the layout of the cooling pipe 6 is embedded inside the concrete 8.

[0031] The cooler 2 and the first three-way valve 4 are connected by a second outlet pipe 17. The first three-way valve 4 and the circulation pump 7, and the circulation pump 7 and the cooling pipe 6 are connected by an inlet pipe 18. The second temperature sensor 10 is arranged on the inlet pipe 18 between the circulation pump 7 and the cooling pipe 6. The cooling pipe 6 and the second three-way valve 5, and the second three-way valve 5 and the water return device 3 are connected by a recycled water pipe 19. The second three-way valve 5 and the cooler 2 are connected by a second water return pipe 20; the two-way communication pipe 11, the first water return pipe 13, the first outlet pipe 15, the second outlet pipe 17, the inlet pipe 18, the recycled water pipe 19 and the second water return pipe 20 (i.e., the pipes outside the concrete 8) are made of PE and PP pipes with lower cost.

[0032] The recycled water pipe 19, the second three-way valve 5, the second water return pipe 20, the cooler 2, the water return device 3 and the water supply device 1 constitute a recycled water system. The recycled water pipe 19 is led out from outside the concrete member and connected to the second water return pipe 20 through the second three-way valve 5 to realize connection with the cooler 2, and the recycled water pipe 19 is connected to the water return device 3 and the water supply device 1 to realize connection.

[0033] The circulation pump 7 is a booster pump and constitutes a power system. The circulation pump 7 transports the normal temperature water of the water supply device 1 and the cooled low-temperature water of the cooler 2 to the inlet pipe 18, transfers the heat of concrete hydration to the water in the cooling pipe 6, and adjusts the temperature in real time to realize the cooling of the concrete, avoiding a large temperature difference between the inside and outside of the concrete, so as to avoid the generation of stress or tension inside the concrete and damage the concrete structure, and achieve the purpose of improving the quality of mass concrete.

[0034] The mass concrete temperature dual-source water cooling system has the following advantages:

[0035] 1. Simple structure, reasonable design, and low input cost;

[0036] 2. Combining the existing concrete temperature control technology treatment measures, an excellent improvement method is proposed. Aiming at the untimely cooling effect and unsatisfactory cooling effect caused by the single supply of ice or normal temperature water for cooling in the past, this system proposes dual-source water supply for cooling in real time according to the temperature difference data, ensuring that the system can respond both in the period of rapid temperature rise and fall of the concrete and in the period of gentle temperature rise, and then achieving the best cooling effect, ensuring that the cooling effect reaches the best state and avoiding the generation of cracks inside and outside the concrete;

[0037] 3. Cooling pipes are respectively embedded in multiple concrete layers, and the cooling pipes embedded in adjacent concrete layers are connected through connecting pipes. On the one hand, the connection is convenient, realizing the circulation of low-temperature water and facilitating the recovery of water in the cooling pipes; on the other hand, it can realize the cooling of multiple concrete layers, and the temperature distribution inside and outside the concrete is uniform.

[0038] 4. Compared with similar temperature cooling devices, its outstanding advantage is that it can enable the circulation of low-temperature cooling water during the high-temperature construction period in summer to reduce the initial pouring temperature of concrete.

[0039] The above is the preferred solution of the present invention, showing and describing the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A large-volume concrete temperature dual-water-source cooling system, characterized in that: It includes a water supply device (1), a cooler (2), a water return device (3), a first three-way valve (4), a second three-way valve (5), a cooling pipe (6) and a circulation pump (7). The water supply device (1) and the cooler (2) are respectively connected to the first three-way valve (4). The first three-way valve (4), the circulation pump (7), the cooling pipe (6) and the second three-way valve (5) are connected in sequence. The second three-way valve (5) is respectively connected to the water return device (3) and the cooler (2). The water return device (3) is connected to the water supply device (1). The water supply device (1) is connected to the cooler (2). The cooling pipe (6) is arranged inside the concrete (8). The first three-way valve (4) is switchably connected to the water supply device (1) and the cooler (2). The second three-way valve (5) is switchably connected to the water return device (3) and the cooler (2). When the temperature difference between the inside and outside of the concrete (8) is ≥ a specific temperature X, the water supply device (1), the cooler (2), the first three-way valve (4), the circulation pump (7), the cooling pipe (6), the second three-way valve (5), and the cooler (2) are connected in sequence to form an ice water cooling circulation water path. When the temperature difference between the inside and outside of the concrete (8) is < a specific temperature X, the water supply device (1), the first three-way valve (4), the circulation pump (7), the cooling pipe (6), the second three-way valve (5), the water return device (3), and the water supply device (1) are connected in sequence to form a normal temperature cooling circulation water path.

2. The large-volume concrete temperature dual-source water cooling system according to claim 1, characterized in that: It further includes a control device, and the control device is respectively electrically connected to the first three-way valve (4) and the second three-way valve (5). When the temperature difference between the inside and outside of the concrete (8) is ≥ a specific temperature X, the control device controls the first three-way valve (4) to switch and connect to the cooler (2), and the control device controls the second three-way valve (5) to switch and connect to the cooler (2). When the temperature difference between the inside and outside of the concrete (8) is < a specific temperature X, the control device controls the first three-way valve (4) to switch and connect to the water supply device (1), and the control device controls the second three-way valve (5) to switch and connect to the water return device (3).

3. The large-volume concrete temperature dual-source water cooling system according to claim 2, wherein: A first temperature sensor (9) for detecting the internal temperature of the concrete (8) is arranged on the cooling pipe (6). A second temperature sensor (10) for detecting the external temperature of the concrete (8) is arranged on the pipeline between the circulation pump (7) and the cooling pipe (6). The control device is respectively electrically connected to the first temperature sensor (9) and the second temperature sensor (10). The temperature difference between the inside and outside of the concrete (8) is the reading difference between the first temperature sensor (9) and the second temperature sensor (10).

4. The large-volume concrete temperature dual-source water cooling system according to claim 2, characterized in that: The water supply device (1) and the cooler (2) are connected through a two-way connecting pipe (11). A first valve (12) is arranged on the two-way connecting pipe (11). The control device is electrically connected to the first valve (12). When the temperature difference between the inside and outside of the concrete (8) is ≥ a specific temperature X, the control device controls the first valve (12) to open so that the water supply device (1) is connected to the cooler (2). When the temperature difference between the inside and outside of the concrete (8) is < a specific temperature X, the control device controls the first valve (12) to close so that the water supply device (1) and the cooler (2) are not connected.

5. The large-volume concrete temperature dual-water-source cooling system according to claim 2, characterized in that: The water supply device (1) and the water return device (3) are connected by a first water return pipe (13). A second valve (14) is provided on the first water return pipe (13), and the control device is electrically connected to the second valve (14). When the temperature difference between the inside and outside of the concrete (8) is ≥ a specific temperature X, the control device controls the second valve (14) to close so that the water supply device (1) and the water return device (3) are not connected. When the temperature difference between the inside and outside of the concrete (8) is < the specific temperature X, the control device controls the second valve (14) to open so that the water return device (3) is connected to the water supply device (1).

6. The large-volume concrete temperature dual-source water cooling system according to claim 2, characterized in that: The water supply device (1) and the first three-way valve (4) are connected by a first water outlet pipe (15). A third valve (16) is provided on the first water outlet pipe (15), and the control device is electrically connected to the third valve (16). When the temperature difference between the inside and outside of the concrete (8) is ≥ a specific temperature X, the control device controls the third valve (16) to close so that the water supply device (1) and the first three-way valve (4) are not connected. When the temperature difference between the inside and outside of the concrete (8) is < the specific temperature X, the control device controls the third valve (16) to open so that the water supply device (1) is connected to the first three-way valve (4).

7. The large-volume concrete temperature dual-source water cooling system according to claim 1, characterized in that: The cooling pipes (6) are arranged circuitously inside the concrete (8), and the cooling pipes (6) are evenly distributed in the upper and lower layers inside the concrete (8).

8. The large-volume concrete temperature dual-source water cooling system according to claim 1, characterized in that: The water supply device (1) and the water return device (3) are storage pools or storage tanks.

9. The large-volume concrete temperature dual-water-source cooling system according to claim 1, wherein: The cooling pipes (6) are made of high-strength and corrosion-resistant metal pipes.

10. The large-volume concrete temperature dual-source water cooling system according to claim 1, wherein: The cooler (2) and the first three-way valve (4) are connected by a second water outlet pipe (17). The first three-way valve (4) and the circulation pump (7), and the circulation pump (7) and the cooling pipes (6) are connected by a water inlet pipe (18). The cooling pipes (6) and the second three-way valve (5), and the second three-way valve (5) and the water return device (3) are connected by a reclaimed water pipe (19). The second three-way valve (5) and the cooler (2) are connected by a second water return pipe (20).

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