Internal cooling and external spraying maintenance device for mass concrete

Abstract

The utility model discloses an internal-cooling external-spraying curing device for mass concrete, which relates to the field of anti-cracking temperature control of mass concrete and comprises a concrete body, a pipeline embedded in the concrete body, a cooling water circulating unit, a temperature monitoring component and a controller. The cooling water circulation unit and the temperature monitoring assembly are both electrically connected with the controller. The concrete cooling system is characterized by further comprising a spraying mechanism acting on the outer surface of the concrete body; the whole system realizes circulating flow of cooling water through the pipeline pre-embedded in the concrete, so that the internal temperature of the concrete can be reduced, the surface of the concrete can be cured through the spraying mechanism, cracks and surface defects are prevented, the quality and durability of a concrete structure are ensured, and the service life of the concrete is prolonged. And the spraying mechanism can adjust the spraying speed and the spraying range of the spraying head, so that the practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of temperature control for crack prevention in large-volume concrete, specifically to a device for internal cooling and external spray curing of large-volume concrete. Background Technology

[0002] Large-volume, high-strength concrete dissipates heat slowly naturally. After pouring, the heat of cement hydration is concentrated, and the internal temperature of the concrete rises rapidly and significantly. To prevent excessive temperature differences between the inside and outside of the concrete, existing technologies often use water spraying on the concrete to achieve temperature control.

[0003] However, some existing concrete temperature control devices control the temperature by spraying water onto the concrete. Since the nozzle position is relatively fixed, the water can only be sprayed on certain parts of the concrete for temperature control. This can easily lead to uneven water spraying, insignificant cooling effect, and may cause localized drying of the concrete surface, resulting in cracks and affecting the strength of the concrete. Utility Model Content

[0004] The purpose of this invention is to provide a device for internal cooling and external spraying curing of large-volume concrete, which aims to solve the problem of uneven spraying of the outer surface of concrete during the temperature control process in the above-mentioned background technology.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a large-volume concrete internal cooling and external spray curing device, comprising a concrete body, a pipeline embedded inside the concrete body, a cooling water circulation unit, a temperature monitoring component, and a controller. The cooling water circulation unit and the temperature monitoring component are both electrically connected to the controller. It also includes a spraying mechanism acting on the outer surface of the concrete body. The cooling water circulation unit includes a base, and a water tank, a cooling tower, and a chiller mounted on the base. The output end of the cooling tower is connected to the input end of the chiller, and the output end of the chiller is connected to the water tank. The outlet of the built-in pump of the water tank is connected to the inlet of the pipeline through an outlet pipe, and the outlet of the pipeline is connected to the input end of the cooling tower through a return pipe.

[0006] Furthermore, the spraying mechanism includes mounting plates on the base and located on both sides of the concrete body. The mounting plates are provided with multiple sets of spraying components. Each spraying component includes a support plate hinged to one side of the mounting plate and an electric telescopic rod, as well as a water distribution pipe fixedly installed at one end opposite to the hinged end of the support plate. Multiple sets of electric telescopic rods are provided, and the output ends of the multiple sets of electric telescopic rods are hinged to the support plate. The water distribution pipe is connected to the water outlet pipe through a flexible hose.

[0007] Furthermore, a plurality of connecting pipes arranged at equal intervals are fixedly connected to one side of the water distribution pipe, a nozzle is fixedly connected to one side of the connecting pipe, and an adjusting valve is provided at the top of the connecting pipe.

[0008] Furthermore, the temperature monitoring unit includes a concrete temperature sensor, an outlet pipe temperature sensor, a recycled hot water temperature sensor, and a water tank temperature sensor. The concrete temperature sensor is used to monitor the internal and external temperatures of the large-volume concrete, the outlet pipe temperature sensor is used to monitor the cooling water temperature in the outlet pipe, and the recycled hot water temperature sensor is used to monitor the temperature of the recycled hot water in the return pipe.

[0009] This utility model has the following beneficial effects:

[0010] This invention provides a device for internal cooling and external spray curing of large-volume concrete. A cooling water circulation unit provides cooling water at the required temperature, allowing it to enter the interior of the large-volume concrete structure for heat exchange. The high-temperature water after heat exchange is then cooled by a cooling tower and a chiller, and this cycle is repeated to achieve temperature control within the large-volume concrete. By adjusting the spray volume and spray range, the outer surface of the concrete structure is cured, resulting in a wider spray range, avoiding cooling dead zones, preventing cracks and surface defects, and ensuring the quality and durability of the concrete structure. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a side view of the spraying mechanism in this utility model;

[0013] In the diagram: 1. Concrete body; 2. Pipeline; 3. Base; 4. Water tank; 5. Cooling tower; 6. Chiller; 7. Outlet pipe; 8. Return pipe; 9. Mounting plate; 10. Support plate; 11. Electric telescopic rod; 12. Distribution pipe; 13. Flexible hose; 14. Connecting pipe; 15. Nozzle; 16. Regulating valve. Detailed Implementation

[0014] like Figures 1 to 2As shown, a large-volume concrete internal cooling and external spray curing device includes a concrete body 1, pipes 2 embedded inside the concrete body 1, a cooling water circulation unit, a temperature monitoring component, and a controller. The cooling water circulation unit and the temperature monitoring component are both electrically connected to the controller. It also includes a spraying mechanism acting on the outer surface of the concrete body 1. The cooling water circulation unit includes a base 3, and a water tank 4, a cooling tower 5, and a chiller 6 mounted on the base 3. The output end of the cooling tower 5 is connected to the input end of the chiller 6, and the output end of the chiller 6 is connected to the water tank 4. The water tank 4... The outlet of the built-in pump is connected to the inlet of pipe 2 via outlet pipe 7, and the outlet of pipe 2 is connected to the input of cooling tower 5 via return pipe 8. Cooling tower 5 is connected to chiller 6. Cooling tower 5 reduces the temperature of circulating water through natural air or forced ventilation. After absorbing heat from the concrete body 1, the circulating water enters cooling tower 5 through return pipe 8. In cooling tower 5, water and air exchange heat. After the water temperature is reduced, it flows into chiller 6. Chiller 6 further reduces the temperature of cooling water by compressing refrigerant to ensure that the water temperature is within the set range.

[0015] The spraying mechanism includes mounting plates 9 mounted on the base 3 and located on both sides of the concrete body 1. Multiple sets of spraying components are provided on the mounting plates 9. Each spraying component includes a support plate 10 hinged to one side of the mounting plate 9 and an electric telescopic rod 11, as well as a water distribution pipe 12 fixedly installed at one end opposite to the hinged end of the support plate 10. Multiple sets of electric telescopic rods 11 are provided, and the output ends of the multiple sets of electric telescopic rods 11 are hinged to the support plate 10. The water distribution pipe 12 is connected to the water outlet pipe 7 through a flexible hose 13. The extension and retraction of the electric telescopic rod 11 can drive the water distribution pipe 12 on the mounting plate 9 to rotate.

[0016] A plurality of connecting pipes 14 arranged at equal intervals are fixedly connected to one side of the water distribution pipe 12. A nozzle 15 is fixedly connected to one side of the connecting pipe 14, and a regulating valve 16 is provided at the top of the connecting pipe 14.

[0017] The temperature monitoring unit includes a concrete temperature sensor, an outlet pipe temperature sensor, a recycled hot water temperature sensor, and a water tank temperature sensor. The concrete temperature sensor monitors the internal and external temperatures of the large-volume concrete, the outlet pipe temperature sensor monitors the cooling water temperature in the outlet pipe, and the recycled hot water temperature sensor monitors the temperature of the recycled hot water in the return pipe. After the sensors monitoring the internal and external temperatures of the large-volume concrete detect the temperature, the processor calculates and compares the temperature difference between the inside and outside of the large-volume concrete. The inlet and outlet sensors monitor the water temperature and flow rate in real time, and the data is transmitted to the controller for analysis. The controller automatically adjusts the opening and closing of the valves according to the temperature changes to ensure that the cooling water flow rate and temperature are within the optimal range.

[0018] The specific operation process of this utility model is as follows:

[0019] External water enters the cooling tower 5, is cooled by the chiller 6, and then the flow rate of the cooling water is controlled by the water tank 4, allowing the cooling water to enter the large-volume concrete body 1 for heat exchange. The high-temperature water after heat exchange returns to the cooling tower 5 and is cooled again by the chiller 6, thus creating a cycle. The water tank 4 supplies cooling water to the distribution pipe 12 through the hose 13. During use, the controller activates the electric telescopic rod 11 to extend and retract synchronously, thereby driving the support plate 10 to rotate. The support plate 10 drives the distribution pipe 12 to rotate. During the rotation, the distribution pipe 12 adjusts the orientation of the nozzles 15 to adjust the spray position and spray range, making the spray effect more uniform and avoiding cooling dead zones. The spray volume can be adjusted manually by adjusting the regulating valve 16 to avoid water waste and achieve good water-saving effect. During this process, through the intelligent joint control of the temperature monitoring unit, the controller can adjust the flow rate or velocity of the cooling water supplied from the water tank 4 to the pipe 2, as well as adjust the working frequency of the chiller 6, thereby ensuring that the monitored internal and external temperatures of the concrete do not exceed the set concrete temperature threshold.

Claims

1. A large-volume concrete internal cooling and external spray curing device, comprising a concrete body (1), a pipeline (2) embedded inside the concrete body (1), a cooling water circulation unit, a temperature monitoring component, and a controller, wherein the cooling water circulation unit and the temperature monitoring component are electrically connected to the controller, characterized in that: It also includes a spraying mechanism that acts on the outer surface of the concrete body (1). The cooling water circulation unit includes a base (3), a water tank (4), a cooling tower (5) and a chiller (6) installed on the base (3). The output end of the cooling tower (5) is connected to the input end of the chiller (6). The output end of the chiller (6) is connected to the water tank (4). The outlet of the built-in pump of the water tank (4) is connected to the inlet of the pipeline (2) through the outlet pipe (7). The outlet of the pipeline (2) is connected to the input end of the cooling tower (5) through the return pipe (8).

2. The large-volume concrete internal cooling and external spray curing device according to claim 1, characterized in that, The spraying mechanism includes a mounting plate (9) on the base (3) and located on both sides of the concrete body (1). The mounting plate (9) is provided with multiple sets of spraying components. The spraying components include a support plate (10) hinged to one side of the mounting plate (9) and an electric telescopic rod (11), as well as a water distribution pipe (12) fixedly installed at one end opposite to the hinge end of the support plate (10). The electric telescopic rod (11) is provided with multiple sets, and the output end of the multiple sets of electric telescopic rods (11) is hinged to the support plate (10). The water distribution pipe (12) is connected to the water outlet pipe (7) through a hose (13).

3. The large-volume concrete internal cooling and external spray curing device according to claim 2, characterized in that, The water distribution pipe (12) is fixedly connected to a plurality of connecting pipes (14) arranged at equal intervals on one side. A nozzle (15) is fixedly connected to one side of the connecting pipe (14). A regulating valve (16) is provided at the top of the connecting pipe (14).

4. The large-volume concrete internal cooling and external spray curing device according to claim 1, characterized in that, The temperature monitoring component includes a concrete temperature sensor, an outlet pipe temperature sensor, a recycled hot water temperature sensor, and a water tank temperature sensor. The concrete temperature sensor is used to monitor the internal and external temperatures of the large-volume concrete. The outlet pipe temperature sensor is used to monitor the cooling water temperature in the outlet pipe. The recycled hot water temperature sensor is used to monitor the temperature of the recycled hot water in the return pipe.

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