Mass concrete temperature control device

Abstract

The utility model discloses a mass concrete temperature control device which comprises a mass concrete block and a water tank, a cooling pipe is laid in the mass concrete block, the two ends of the cooling pipe are communicated with a water inlet pipe and a water outlet pipe respectively, the water inlet pipe and the water outlet pipe are both communicated with the water tank, and the water tank is communicated with a cold water inlet pipe and a water tank water outlet pipe. A temperature measuring line is arranged in the mass concrete block, a water pump is fixedly installed in the middle of the water inlet pipe, a heater is installed in the water tank, and electric control valves are installed on the cold water inlet pipe and the water tank water outlet pipe. According to the mass concrete temperature control device, the temperature of water entering the cooling pipe is strictly controlled through the automatic control device, the difference between the temperature of the water and the temperature of the interior of the concrete is controlled, and therefore the situation that cracks are generated in the concrete due to the fact that the temperature of cooling water is too low is avoided; and the cooling effect cannot be achieved due to over-high temperature of cooling water.

Description

Technical Field

[0001] The utility model relates to the technical field of automation, in particular to a temperature control device for mass concrete. Background Art

[0002] With the development of various new sensors, microelectronics technology and network communication technology, various automated monitoring systems have been widely used in major buildings and environmental projects such as dams, levees, and high slopes. In addition, the technologies for monitoring items such as deformation, seepage, seepage pressure, temperature, stress, strain, etc. are becoming increasingly mature, with the characteristics of accurate and real-time data.

[0003] At present, the automated monitoring of large-volume concrete mainly includes the automation of data collection, data transmission, data management and data analysis, but it has not been fully integrated with the control system, and has not been able to achieve automated control and intelligent control of the internal temperature of concrete based on monitoring data.

[0004] The temperature control of large-volume concrete is currently mainly controlled by water cooling technology. The requirements for lowering the temperature of concrete at different times are different, and it is necessary to control it by changing the temperature, flow rate, pipe diameter, etc. of the incoming water. At present, the flow rate of the incoming water is basically fixed and cannot be adjusted and controlled. If the cooling water temperature is too low, cracks will appear inside the concrete. If the cooling water temperature is too high, the cooling effect cannot be achieved. Large-volume concrete will have various defects due to temperature. Utility Model Content

[0005] The purpose of the utility model is to provide a large volume concrete temperature control device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-volume concrete temperature control device, comprising a large-volume concrete block and a water tank, a cooling pipe is laid in the large-volume concrete block, and the two ends of the cooling pipe are respectively connected with a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are both connected with the water tank, the water tank is connected with a cold water inlet pipe and a water tank outlet pipe, a temperature measuring line is provided in the large-volume concrete block, a water pump is fixedly installed in the middle of the water inlet pipe, a heater is installed in the water tank, and electric control valves are installed on the cold water inlet pipe and the water tank outlet pipe;

[0007] The water pump, heater and two electrically controlled valves are all connected to a controller, an inlet pipe water temperature sensor is installed on the water inlet pipe, an outlet pipe water temperature sensor is installed on the water outlet pipe, a plurality of evenly distributed temperature sensors are installed in the temperature measuring line, a water temperature sensor is arranged in the water tank, and the water temperature sensor, the inlet pipe water temperature sensor, the outlet pipe water temperature sensor and a plurality of temperature sensors are all connected to a data transmitter.

[0008] Temperature measuring lines are installed inside large concrete blocks. According to the thickness of concrete, each temperature measuring line is equipped with (6~10) measuring points. The distance between temperature sensors is no more than 50cm. The temperature measuring points on the surface of concrete should be arranged at 50mm from the concrete surface. The temperature measuring points on the bottom layer should be arranged at 100mm above the bottom surface of the concrete casting. Cooling pipes are arranged in the middle of large concrete blocks. The cooling pipes are 1.5m away from the edge of concrete and the spacing is 1~2m. The total length of each set of cooling pipes shall not exceed 150m. When the thickness of concrete is greater than 3m, multiple layers of cooling pipes shall be arranged. The spacing between each layer of cooling pipes is 1~1.5m. Water pipes are placed in the water tank. The temperature sensor is used to monitor the water temperature in the water tank in real time. It controls two electrically controlled valves to displace the water inside the water tank when the water temperature in the water tank is too high, thereby lowering the water temperature inside the water tank. The inlet pipe water temperature sensor and the outlet pipe water temperature sensor, and the temperature measuring line monitor the internal temperature of the large-volume concrete block. When the internal temperature of the large-volume concrete block exceeds the set value, the water pump is started to circulate the water, and the water circulation is stopped when the stop condition is met. By monitoring the temperature of the inlet pipe and the outlet pipe, when the temperature of the inlet pipe and the outlet pipe is higher than 6°C, the water pump is controlled to increase the water flow rate. When the temperature of the inlet pipe and the outlet pipe is lower than 3°C, the water pump is controlled to reduce the water flow rate to better control the cooling effect.

[0009] Preferably, the connection points between the water outlet pipe and the cold water inlet pipe and the water tank are both located at the top of the water tank.

[0010] Preferably, the connection between the water tank outlet pipe and the water tank is located on one side of the water tank, and the connection between the water tank inlet pipe and the water tank is located on the other side of the water tank.

[0011] Preferably, the cooling pipe is continuously bent in the massive concrete block.

[0012] Preferably, the minimum distance between the two sides of the cooling pipe and the side surface of the large concrete block is 1.5 m.

[0013] Preferably, the minimum distance between the crest of the cooling pipe and the side of the large concrete block is 1.5 m.

[0014] Compared with the prior art, the beneficial effects of the utility model are: through the automatic control device, the water temperature entering the cooling pipe is strictly controlled, and the difference in temperature between water and the inside of the concrete is controlled, thereby avoiding cracks in the concrete due to too low a cooling water temperature, and failing to achieve a cooling effect due to too high a cooling water temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the utility model;

[0016] Figure 2 The cross section of the large volume concrete block of the utility model is Figure 1 ;

[0017] Figure 3 The cross section of the large volume concrete block of the utility model is Figure 2 .

[0018] In the figure: 1. Water tank; 2. Controller; 3. Water pump; 4. Water inlet pipe; 5. Cooling pipe; 6. Temperature measuring line; 7. Data transmitter; 8. Water outlet pipe; 9. Cold water inlet pipe; 10. Water tank outlet pipe; 11. Heater; 12. Water temperature sensor; 13. Water inlet pipe water temperature sensor; 14. Water outlet pipe water temperature sensor; 15. Large concrete block; 16. Electric control valve; 17. Temperature sensor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] See also Figure 1-3 The utility model provides a large-volume concrete temperature control device, including a large-volume concrete block 15 and a water tank 1. A cooling pipe 5 is laid in the large-volume concrete block 15. The two ends of the cooling pipe 5 are respectively connected with a water inlet pipe 4 and a water outlet pipe 8. The water inlet pipe 4 and the water outlet pipe 8 are both connected to the water tank 1. The water tank 1 is connected with a cold water inlet pipe 9 and a water tank outlet pipe 10. A temperature measuring line 6 is arranged in the large-volume concrete block 15. A water pump 3 is fixedly installed in the middle of the water inlet pipe 4. A heater 11 is installed in the water tank 1. The cold water inlet pipe 9 and the water tank outlet pipe 10 are connected to the water tank 1. The pipes 10 are each installed with an electrically controlled valve 16; the water pump 3, the heater 11 and the two electrically controlled valves 16 are each connected to a controller 2; an inlet pipe water temperature sensor 13 is installed on the inlet pipe 4; an outlet pipe water temperature sensor 14 is installed on the outlet pipe 8; a plurality of evenly distributed temperature sensors 17 are installed in the temperature measuring line 6; a water temperature sensor 12 is provided in the water tank 1; the water temperature sensor 12, the inlet pipe water temperature sensor 13, the outlet pipe water temperature sensor 14 and the plurality of temperature sensors 17 in the temperature measuring line 6 are each connected to a data transmitter 7.

[0021] When in use, the water temperature sensor 12, the water inlet pipe water temperature sensor 13, the water outlet pipe water temperature sensor 14 and multiple temperature sensors 17 are connected to the data transmitter 7 to upload data to the cloud platform. The cloud platform controls the water pump 3, the heater 11 and the two electrically controlled valves 16 through the controller 2. The water temperature sensor 12 monitors the temperature of the cooling water in the water tank 1 in real time. The heater 11 is used to heat the cooling water in the water tank 1 when the cooling water temperature is too low. The water inlet pipe water temperature sensor 13 and the water outlet pipe water temperature sensor 14 monitor the temperature of the water inlet pipe 4 and the water outlet pipe 8 in real time. When the temperature of the water inlet pipe 4 and the water outlet pipe 8 is higher than 6°C, the water pump 3 is controlled to increase the water flow rate. When the temperature of the water inlet pipe 4 and the water outlet pipe 8 is lower than 3°C, the water pump 3 is controlled to reduce the water flow rate to better control the cooling effect.

[0022] The connection points between the water outlet pipe 8 and the cold water inlet pipe 9 and the water tank 1 are both located at the top of the water tank 1 , the connection point between the water tank outlet pipe 10 and the water tank 1 is located at one side of the water tank 1 , and the connection point between the water inlet pipe 4 and the water tank 1 is located at the other side of the water tank 1 .

[0023] The cooling pipe 5 is continuously bent in the massive concrete block 15 , the minimum distance between the two sides of the cooling pipe 5 and the side surface of the massive concrete block 15 is 1.5 m, and the minimum distance between the wave crest of the cooling pipe 5 and the side surface of the massive concrete block 15 is 1.5 m.

[0024] When the embodiment of the present application is used: a temperature measuring line 6 is installed inside the large concrete block 15. According to the thickness of the concrete, each temperature measuring line 6 is arranged with (6-10) measuring points. The distance between the temperature sensors is not greater than 50 cm. The temperature measuring points of the concrete surface layer should be arranged at 50 mm from the concrete surface; the temperature measuring points of the bottom layer should be arranged 100 mm above the bottom surface of the concrete casting body.

[0025] The water temperature sensor 12, the water inlet pipe water temperature sensor 13, the water outlet pipe water temperature sensor 14 and the plurality of temperature sensors 17 are connected to the data transmitter 7 to upload data to the cloud platform;

[0026] Cooling pipes 5 are arranged in the middle of the large concrete block 15. The cooling pipes 5 are 1.5m away from the edge of the concrete and the spacing is 1-2m. The total length of each set of cooling pipes 5 does not exceed 150m. When the concrete thickness is greater than 3m, multiple layers of cooling pipes 5 should be arranged, and the spacing between each layer of cooling pipes 5 is 1-1.5m.

[0027] A water tank 1 is provided, and a water temperature sensor 12 is placed in the water tank 1 for real-time monitoring of the water temperature in the water tank 1; a heater 11 is installed to heat the water in the water tank 1 when the water temperature in the water tank 1 is too low; a cold water inlet pipe 9 and a water tank outlet pipe 10 are installed, and two electrically controlled valves 16 are controlled to replace the water in the water tank 1 when the water temperature in the water tank 1 is too high, thereby reducing the water temperature in the water tank 1;

[0028] Install a water pump 3, a water inlet pipe water temperature sensor 13 and a water outlet pipe water temperature sensor 14, monitor the internal temperature of the large-volume concrete block 15 through the temperature measuring line 6, start the water pump 3 to circulate water when the internal temperature of the large-volume concrete block 15 exceeds the set value, and stop the water circulation when the stop condition is reached, and monitor the temperature of the water inlet pipe 4 and the water outlet pipe 8. When the temperature of the water inlet pipe 4 and the water outlet pipe 8 is higher than 6°C, control the water pump 3 to increase the water flow rate, and when the temperature of the water inlet pipe 4 and the water outlet pipe 8 is lower than 3°C, control the water pump 3 to reduce the water flow rate to better control the cooling effect;

[0029] All sensors and controller 2 receive and send data through the cloud platform to achieve the purpose of fully automatic temperature measurement.

[0030] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mass concrete temperature control device, comprising a mass concrete block (15) and a water tank (1), characterized in that: A cooling pipe (5) is laid in the large-volume concrete block (15), and the two ends of the cooling pipe (5) are respectively connected to a water inlet pipe (4) and a water outlet pipe (8), and the water inlet pipe (4) and the water outlet pipe (8) are both connected to a water tank (1), and the water tank (1) is connected to a cold water inlet pipe (9) and a water tank outlet pipe (10), a temperature measuring line (6) is provided in the large-volume concrete block (15), a water pump (3) is fixedly installed in the middle of the water inlet pipe (4), a heater (11) is installed in the water tank (1), and an electric control valve (16) is installed on the cold water inlet pipe (9) and the water tank outlet pipe (10); The water pump (3), the heater (11) and the two electrically controlled valves (16) are all connected to a controller (2); a water inlet pipe water temperature sensor (13) is installed on the water inlet pipe (4); a water outlet pipe water temperature sensor (14) is installed on the water outlet pipe (8); a plurality of evenly distributed temperature sensors (17) are installed in the temperature measuring line (6); a water temperature sensor (12) is arranged in the water tank (1); and the water temperature sensor (12), the water inlet pipe water temperature sensor (13), the water outlet pipe water temperature sensor (14) and the plurality of temperature sensors (17) are all connected to a data transmitter (7).

2. A mass concrete temperature control device according to claim 1, characterized in that: The connection points between the water outlet pipe (8) and the cold water inlet pipe (9) and the water tank (1) are both located at the top of the water tank (1).

3. A mass concrete temperature control device according to claim 1, characterized in that: The connection point between the water tank outlet pipe (10) and the water tank (1) is located on one side of the water tank (1), and the connection point between the water inlet pipe (4) and the water tank (1) is located on the other side of the water tank (1).

4. A mass concrete temperature control device according to claim 1, characterized in that: The cooling pipe (5) is continuously bent inside the massive concrete block (15).

5. The mass concrete temperature control device according to claim 1, characterized in that: The minimum distance between the two sides of the cooling pipe (5) and the side of the large concrete block (15) is 1.5 m.

6. A mass concrete temperature control device according to claim 1, characterized in that: The minimum distance between the wave crest of the cooling pipe (5) and the side surface of the large-volume concrete block (15) is 1.5 m.

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