Large-volume concrete cooling device

Abstract

The utility model discloses a large-volume concrete cooling device which comprises a galvanized steel pipe which is connected through an internal-thread galvanized pipe connector and is at least provided with a water outlet and a water inlet. The water outlet and the water inlet are connected with the circulating water tank; the temperature monitoring system comprises a controller, a thermodetector arranged in the mass concrete, a temperature sensor arranged in the circulating water tank and a temperature adjusting device arranged between the circulating water tank and the water inlet, and the controller is connected with the thermodetector, the temperature sensor and the temperature adjusting device and used for adjusting the temperature of outlet water of the circulating water tank. A galvanized steel pipe with high heat exchange efficiency is adopted as a concrete internal circulating water pipe, and the temperature in mass concrete is reduced through the principle of water circulating circulation and heat transfer; the circulating water tank is arranged, water flows continuously, and the cooling rate in the concrete is effectively controlled; and through the temperature monitoring system, the temperature of the concrete can be monitored and controlled in real time, and stable cooling of the large-size concrete is ensured.

Description

Technical Field

[0001] The utility model relates to the technical fields of civil engineering, hydraulic engineering and application of large-volume concrete, and in particular to a large-volume concrete cooling device. Background Art

[0002] Mass concrete is widely used in large-scale civil engineering and hydraulic engineering projects. After pouring, the hydration of cement within the concrete generates a large amount of heat, which is difficult to dissipate, causing the concrete's internal temperature to rise. However, the heat from the exposed surface dissipates easily, which inevitably causes a temperature difference between the concrete's interior and surface. When the temperature difference between the interior and surface is too large, it will cause temperature stress and temperature deformation. In the construction of mass concrete, effective control of the internal and external temperature difference is the primary prerequisite for preventing the occurrence of cracks. Mass concrete is characterized by high concrete design strength, large concrete volume, and high internal temperature caused by hydration heat. Controlling the internal and external temperature difference and temperature deformation stress of concrete is key to improving the concrete's resistance to permeability, cracking, and erosion.

[0003] In current engineering practice, the conventional method for reducing the hydration heat during the construction of large-volume concrete foundation raft slabs is primarily the insulation method of film and sacks. However, due to discrepancies between calculated assumptions and actual conditions or sudden temperature fluctuations, the amount of insulation delivered to the site may not meet the required requirements. Furthermore, the application of insulation materials is often subject to human error, making it prone to omissions and under-laying. The existing film and sack method cannot fully and effectively control the temperature difference between the inside and outside of large-volume concrete, leading to cracks. Utility Model Content

[0004] In order to overcome the problem that the existing film plus sack method cannot fully and effectively control the temperature difference between the inside and outside of large-volume concrete, thereby causing cracks, the utility model provides a large-volume concrete cooling device.

[0005] The technical solution of this utility model is as follows:

[0006] A large volume concrete cooling device, comprising:

[0007] Galvanized steel pipes, which are connected by internal thread galvanized pipe joints and arranged in a "J" shape inside the large volume of concrete, and are provided with at least one water outlet and one water inlet;

[0008] A circulating water tank, wherein the water outlet and the water inlet are both connected to the circulating water tank;

[0009] The temperature monitoring system includes a controller, a temperature measuring instrument placed in the bulk concrete, a temperature sensor provided in the circulating water tank, and a temperature regulating device provided between the circulating water tank and the water inlet. The controller is respectively connected to the temperature measuring instrument, the temperature sensor, and the temperature regulating device to regulate the temperature of the water outlet from the circulating water tank so that the temperature difference between the water temperature at the water inlet and the temperature inside the bulk concrete is 15-20°C.

[0010] According to the above-mentioned solution of the present invention, a booster pump is provided between the circulating water tank and the water inlet.

[0011] According to the above-mentioned solution of the present invention, a valve for controlling the water flow rate is provided between the circulating water tank and the water inlet.

[0012] The utility model according to the above solution further comprises a switch control box, which is connected to the booster pump and the valve respectively.

[0013] Furthermore, the galvanized steel pipe and the inner-thread galvanized pipe joint are sealed by plastic tape.

[0014] Furthermore, the galvanized steel pipes are laid at intervals of 2m in the thickness direction of the large volume concrete.

[0015] According to the above solution of the present invention, the horizontal spacing of the galvanized steel pipes is 2m.

[0016] Furthermore, the wall thickness of the galvanized steel pipe is 3.25 mm, and the diameter of the galvanized steel pipe is 32 mm.

[0017] Furthermore, there are three temperature measuring instruments in the bulk concrete, which are respectively arranged above the bulk concrete, in the middle of the bulk concrete and below the bulk concrete.

[0018] The utility model according to the above scheme has the beneficial effect that the utility model adopts galvanized steel pipes with high heat exchange efficiency as the internal circulating water pipes of concrete, which are not easily damaged during the construction process. The galvanized steel pipes with large surface area and high heat exchange efficiency are reasonably buried inside the large-volume concrete, and the temperature inside the large-volume concrete is reduced through the principle of water circulation and heat transfer; a circulating water tank is set to reduce human influence factors, and the water flows continuously to effectively control the cooling rate inside the concrete; through the temperature monitoring system, the device can monitor and control the temperature of the concrete in real time, ensuring a stable cooling effect of the large-volume concrete; not only can the temperature of the large-volume concrete be effectively reduced, but also the circulating water tank can be used to realize the recycling of water, reducing the demand for new water, and reducing energy consumption and costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a flow chart of the utility model.

[0021] In the drawings, the reference numerals are as follows:

[0022] 1. Galvanized steel pipe; 2. Water outlet; 3. Water inlet; 4. Circulating water tank; 5. Controller; 6. Thermometer; 7. Temperature sensor; 8. Temperature control device; 9. Booster pump; 10. Valve; 11. Large volume concrete. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0024] It should be noted that the terms "including" and "having," as well as any variations thereof, in the specification and claims of the present invention are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units that are not listed, or may optionally include other steps or units that are inherent to the process, method, product, or device. Terms such as "disposed" should be interpreted broadly, for example, and may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, internal connections between two elements, or interactions between two elements, unless otherwise expressly defined. Terms such as "upper," "lower," "left," "right," "front," "back," and "bottom" indicate directions or positions based on those shown in the accompanying drawings. These are for ease of description only and should not be construed as limitations on the present invention.

[0025] like Figure 1-Figure 2 As shown, this embodiment discloses a cooling device for large-volume concrete 11, which uses a galvanized steel pipe 1 with high heat exchange efficiency as a circulating water pipe inside the concrete. It is not easy to be damaged during the construction process. The galvanized steel pipe 1 with a large specific surface area and high heat exchange efficiency is reasonably buried inside the large-volume concrete 11, and the temperature inside the large-volume concrete 11 is reduced by the principle of heat transfer through water circulation. A circulating water tank 4 is set to reduce human influence factors, and the water flows continuously, effectively controlling the cooling rate inside the concrete. Through the temperature monitoring system, the device can monitor and control the temperature of the concrete in real time, ensuring a stable cooling effect of the large-volume concrete 11. Not only can the temperature of the large-volume concrete 11 be effectively reduced, but the circulating water tank 4 can also realize the recycling of water, reducing the demand for new water, reducing energy consumption and costs.

[0026] Specifically, the system comprises a galvanized steel pipe 1, which is connected via internal galvanized pipe joints and arranged in a "J" shape within a large concrete volume 11. This arrangement ensures uniform distribution of water within the concrete, thereby achieving a better cooling effect. The system also includes at least one water outlet 2 and one water inlet 3, both of which are part of the galvanized steel pipe 1 and are used to connect to a circulating water tank 4.

[0027] Circulating water tank 4 is connected to both water outlet 2 and water inlet 3. Circulating water tank 4 is a water storage container used to store water flowing out of water outlet 2 before it flows back into galvanized steel pipe 1 through water inlet 3. In this way, water can be recycled in the system, thereby achieving continuous cooling of the large volume of concrete 11.

[0028] The temperature monitoring system is an intelligent system used to monitor and control the temperature of concrete. It includes a controller 5, a thermometer 6 placed inside the bulk concrete 11, a temperature sensor 7 located inside the circulating water tank 4, and a thermostat 8 located between the circulating water tank 4 and the water inlet 3. The controller 5 is connected to the thermometer 6, temperature sensor 7, and thermostat 8, respectively. The controller 5 is the core of the system, responsible for receiving and processing data from the thermometer 6 and temperature sensor 7, and adjusting the thermostat 8 accordingly. The thermostat 8, based on the instructions from the controller 5, adjusts the temperature of the water exiting the circulating water tank 4, ensuring that the temperature difference between the water at the water inlet 3 and the temperature inside the bulk concrete 11 is between 15-20°C.

[0029] like Figure 1 As shown, in one embodiment, a booster pump 9 is installed between the circulating water tank 4 and the water inlet 3. The primary function of the booster pump 9 is to increase the pressure of the water entering the galvanized steel pipe 1. Its introduction improves cooling efficiency. Due to the density and thickness of the large concrete 11, ordinary water flow may have difficulty penetrating its deep layers and achieving the desired cooling effect. The booster pump 9 ensures that even in the face of significant resistance, the water flow is evenly distributed to all parts of the concrete at sufficient pressure and velocity, significantly improving cooling efficiency.

[0030] like Figure 1 As shown, in one embodiment, a valve 10 for controlling the water flow rate is provided between the circulating water tank 4 and the water inlet 3. The function of this valve 10 is to adjust the water flow rate entering the galvanized steel pipe 1. By rotating the adjustment handle of the valve 10, the operator can easily control the speed of the water flow, thereby achieving precise water flow control and ensuring that the cooling rate of the large volume concrete 11 is not greater than 2.0°C / d. The use of the valve 10 allows the operator to flexibly adjust the water flow rate according to actual needs, thereby better balancing the cooling effect and the use of water resources. Preferably, the valve 10 is connected to the controller 5, and the valve 10 can be controlled by the controller 5 to control the water flow rate.

[0031] In one embodiment, a switch control box is further included, which is connected to the booster pump 9 and the valve 10 respectively to control the opening and closing of the booster pump 9 and the valve 10.

[0032] In one embodiment, galvanized steel pipes 1 are laid at intervals of 2 m in the thickness direction of the mass concrete 11. The horizontal spacing of the galvanized steel pipes 1 is 2 m. The wall thickness of the galvanized steel pipes 1 is 3.25 mm, and the diameter of the galvanized steel pipes 1 is 32 mm.

[0033] The construction process is as follows: according to the condenser pipe layout drawing, cut the galvanized steel pipe 1 according to size and configure the water inlet 3, water outlet 2 and circulating water tank 4; according to the position on the drawing, install and connect the galvanized steel pipe 1 in sequence.

[0034] The galvanized steel pipes 1 are arranged in a "J" shape, so that the bulk concrete 11 is evenly cooled. The horizontal spacing of the galvanized steel pipes 1 is 2m, and one layer is laid every 2m along the thickness direction of the bulk concrete 11. In order to ensure that the temperature of the bulk concrete 11 meets the specified specifications and design requirements, Φ32 galvanized steel pipes 1 with a wall thickness of 3.25mm are used as cooling water pipes to control the internal temperature of the concrete. The galvanized steel pipes 1 are connected with internal thread galvanized pipe joints, and the galvanized steel pipes 1 are tied and fixed to the adjacent columns with iron wire. After the fixing is completed, the joint position is sealed with plastic tape, and before the concrete is poured, a water flow test is carried out to ensure that there are no leakage points.

[0035] In one embodiment, three thermometers 6 are located within the bulk concrete 11, one above, one in the middle, and one below. By distributing thermometers 6 at different locations within the concrete, the device can more accurately monitor temperature changes in various areas of the concrete. Comprehensive temperature monitoring helps ensure that the overall temperature of the concrete remains within an appropriate range, preventing structural problems caused by local overheating or excessive temperature differences. This data is transmitted to the controller 5, which then adjusts the operating parameters of the thermostat 8 and valve 10 based on a preset algorithm and the current water temperature difference to ensure that the entire cooling process is both efficient and safe.

[0036] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

[0037] The above is an exemplary description of the present utility model patent in conjunction with the accompanying drawings. It is obvious that the implementation of the present utility model patent is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the present utility model patent, or the concept and technical solution of the present utility model patent are directly applied to other occasions without improvement, they are all within the scope of protection of the present utility model.

Claims

1. A large volume concrete cooling device, characterized in that: include: The galvanized steel pipes are connected by internal thread galvanized pipe joints and arranged in a "J" shape inside the large volume of concrete, and are provided with at least one water outlet and one water inlet; A circulating water tank, wherein the water outlet and the water inlet are both connected to the circulating water tank; The temperature monitoring system includes a controller, a temperature measuring instrument placed in the large volume concrete, a temperature sensor arranged in a circulating water tank, and a temperature regulating device arranged between the circulating water tank and the water inlet. The controller is respectively connected to the temperature measuring instrument, the temperature sensor and the temperature regulating device to adjust the temperature of the water outlet from the circulating water tank so that the temperature difference between the water temperature at the water inlet and the temperature in the large volume concrete is 15-20°C.

2. A large volume concrete cooling device according to claim 1, characterized in that: A booster pump is arranged between the circulating water tank and the water inlet.

3. A large volume concrete cooling device according to claim 2, characterized in that: A valve for controlling water flow rate is provided between the circulating water tank and the water inlet.

4. A large volume concrete cooling device according to claim 3, characterized in that: It also includes a switch control box, which is connected to the booster pump and the valve respectively.

5. A large volume concrete cooling device according to claim 1, characterized in that: The galvanized steel pipe and the inner-thread galvanized pipe joint are sealed by a plastic tape.

6. A large volume concrete cooling device according to claim 1, characterized in that: The galvanized steel pipes are laid at intervals of 2m in the thickness direction of the large volume concrete.

7. A large volume concrete cooling device according to claim 6, characterized in that: The horizontal spacing between the galvanized steel pipes is 2m.

8. The large volume concrete cooling device according to claim 1 is characterized in that: The wall thickness of the galvanized steel pipe is 3.25 mm, and the diameter of the galvanized steel pipe is 32 mm.

9. A large volume concrete cooling device according to claim 1, characterized in that: There are three temperature measuring instruments in the large volume concrete, which are respectively arranged above the large volume concrete, in the middle of the large volume concrete and below the large volume concrete.

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