A water-cooling control system for temperature control of large-volume concrete

Abstract

This utility model provides a water-cooling control system for temperature control of large-volume concrete. The large-volume concrete is cooled by water through water pipes, which include a first loop and a second loop. The outlet of the first loop is connected to a water tank, and the outlet of the second loop is connected to a cooling pool. The water tank is equipped with a water level sensor and a temperature sensor to monitor the water tank temperature and water level. The water-cooling control system is used to trigger the water pump to work or stop working based on the water tank temperature and water level. Through the water-cooling control system, the water tank temperature can be effectively controlled, and the cooling water flow can be regulated to achieve reasonable and optimized cooling water temperature regulation and control.

Description

Technical Field

[0001] This utility model relates to the field of concrete construction, specifically to a water cooling control system for temperature control of large-volume concrete. Background Technology

[0002] Large-volume concrete pours have a large volume and poor thermal conductivity. During the pouring process, the cement hydration reaction generates a significant amount of heat. This heat cannot be effectively dissipated from the concrete in a timely manner, resulting in a high internal temperature and a low surface temperature. This temperature difference leads to thermal stress on the concrete surface. Once the thermal stress exceeds the tensile strength of the concrete, thermal cracks will appear on the concrete surface, affecting the performance of the concrete.

[0003] When cooling a concrete pour with water, it is an effective way to reduce the temperature difference between the inside and outside of the pour. Considering the overall benefits of water cooling, a circulating water cooling system is generally set up. During the circulating water cooling process, the water that has been heated inside the concrete will return to the water tank, which will prevent the water tank temperature from being effectively reduced. If the water tank temperature is not properly controlled, the water entering the concrete will become overheated and will not be able to achieve its cooling effect. Summary of the Invention

[0004] This invention addresses the problems of existing technologies by providing a water-cooling control system for temperature control of large-volume concrete, thereby achieving effective control of cooling water flow.

[0005] This utility model provides a water-cooling control system for temperature control of large-volume concrete. The large-volume concrete is temperature-controlled by water pipes. The water pipes are connected to a water tank via a water pump. The system is characterized by: the water pipes comprising a first loop and a second loop; a first outlet at the end of the first loop and a second outlet at the end of the second loop; the first outlet being connected to the water tank to allow water to flow into the tank; and the second outlet being connected to a cooling pool; an inlet pump in the cooling pool connected to an inlet pipe connected to the water tank; and a water level sensor and a temperature sensor in the water tank for monitoring the water level and temperature. The water-cooling control system is used to trigger the inlet pump to operate or stop based on the water level and temperature. When the inlet pump operates, the inlet pipe draws water from the cooling pool into the water tank.

[0006] Preferably, the first circuit is arranged on the upper layer of the large-volume concrete, and the second circuit is arranged on the lower layer of the large-volume concrete. The water inlet ends of both the first circuit and the second circuit are connected to the water pipe connected to the water pump through a T-joint.

[0007] Preferably, the water cooling control system uses a microcontroller, which is connected to a relay, and the relay controls the opening or closing of the water inlet pump.

[0008] Preferably, the cooling pool is set up in the open air to naturally cool the water flowing out of the second outlet. The water volume of the cooling pool is more than 10 times the water volume of the water tank. The cooling pool is provided with an overflow outlet, which overflows when the water volume of the cooling pool is greater than the elevation of the overflow outlet.

[0009] The working principle of this utility model is as follows:

[0010] For large-volume concrete, during the heating stage, if the water entering the concrete from the water tank is not treated and flows directly back into the water tank, the water temperature in the tank will be too high, which is not conducive to temperature control. This utility model addresses this problem by setting up a cooling pool. One return water path flows directly into the water tank to ensure the basic water source for water circulation in the tank. The other return water path connects to the cooling pool, where it is cooled before entering the water tank. Since the cooling pool is set up outdoors, it can use the water temperature of the concrete to cool the water that has been heated inside the concrete, thereby ensuring the temperature control of the water in the water tank.

[0011] Because one channel of water in the tank no longer circulates back to the tank, the water level will continuously decrease. A water level sensor monitors the tank's capacity. When the water level is too low, the inlet pump is activated to replenish water; when the water level is too high, the inlet pump is shut off, and the water level is allowed to drop. Simultaneously, a temperature sensor activates the inlet pump to replenish cold water when the water temperature exceeds a set value; when the water temperature falls below the set value, the inlet pump is shut off, stopping replenishment. Through intelligent decision-making, the effective control of the water temperature during the flow of water through large-volume concrete is improved.

[0012] The technical solution of this utility model is applicable to situations where the return water temperature is higher than a set value during the heating stage of large-volume concrete, and is used to reduce the temperature value of the concrete.

[0013] The advantages of this utility model are:

[0014] (1) Designing a cooling water system with upper and lower loops can effectively reduce the layout length of a single loop and reduce the temperature rise of water in the concrete pipes.

[0015] (2) Water returning to the water tank through one loop can reduce the heat rise of the water in the tank. Water entering the cooling pool can ensure reasonable temperature control of the water in the tank. Water entering the cooling pool through the other loop can be naturally cooled, increasing the heat diffusion loss.

[0016] (3) By using the temperature sensor and water level sensor installed in the water tank, the water volume and water temperature in the water tank can be guaranteed. When the threshold is exceeded, the water pump will be turned off or on, so as to carry out reasonable optimization control and realize intelligent control of the water in the water tank. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a connection diagram for the control system.

[0019] Figure 3 This is the logic diagram of the control system. Detailed Implementation

[0020] The following provides a detailed explanation of the limitations of this utility model.

[0021] This utility model provides a water-cooling control system for temperature control of large-volume concrete. The large-volume concrete is temperature-controlled by water pipes. The water pipes are connected to water in a water tank 1 via a water pump. The water pipes include a first loop 2 and a second loop 3. The first loop 2 has a first outlet 4 at its end, and the second loop 3 has a second outlet 5 at its end. The first outlet 4 is connected to the water tank 1 to allow water to flow into the water tank 1. The second outlet 5 is connected to a cooling pool 6. A water pump 14 is installed in the cooling pool 6. The water pump 14 is connected to an inlet pipe 7, which is connected to the water tank 1. A water level sensor 11 and a temperature sensor 12 are installed in the water tank 1 to monitor the water level and water temperature. The water-cooling control system 13 is used to trigger the water pump 14 to work or stop working based on the water level and water temperature of the water tank 1. When the water pump 14 works, the inlet pipe 7 pumps water from the cooling pool 6 to the water tank 1.

[0022] Preferably, the first circuit 2 is arranged on the upper layer of the large-volume concrete, and the second circuit 3 is arranged on the lower layer of the large-volume concrete. The water inlet ends of both the first circuit 2 and the second circuit 3 are connected to the water pipe connected to the water pump through a T-joint. The T-joint should be properly sealed to prevent water leakage, and if necessary, it should be secured with Teflon tape and steel wire.

[0023] Preferably, the water cooling control system 13 employs a microcontroller, which is connected to a relay. The relay controls the opening and closing of the water inlet pump 14. The water inlet pump 14 uses a 220V circuit system, an industrial microcontroller, and the relay controls the on / off state of the water inlet pump 14 circuit.

[0024] The water cooling control system 13 adopts programmable control logic. Its control logic is as follows: when the water level of the water tank 1 monitored by the water level sensor 11 is lower than the minimum value, the water inlet pump 14 is turned on; when the water level of the water tank 1 is higher than the maximum value, the water inlet pump 14 is turned off to prevent the water tank 1 from overflowing. Through water level control, the water in the water tank 1 is controlled to be kept between the highest and lowest water levels.

[0025] When the water temperature in water tank 1 exceeds the set maximum temperature, the inlet pump 14 is activated, allowing water from cooling pool 6 to enter water tank 1. When the water temperature in water tank 1 falls below the set minimum temperature, the inlet pump 14 is deactivated, allowing only water from the first loop 2 to enter water tank 1, thus raising the temperature of water tank 1. For water level control in water tank 1, water level control takes precedence over water temperature control. Specifically, when the water level is between the highest and lowest levels, a water temperature check is performed in water tank 1. The check interval can be selected as 1 minute, 5 minutes, or other time periods, depending on the control requirements. Shorter intervals result in lower control accuracy but do not lead to frequent equipment operation. A certain safety margin can be reserved when setting the highest and lowest water levels.

[0026] Preferably, the cooling pool 6 is located in the open air to naturally cool the water flowing out of the second outlet 5. The water volume of the cooling pool 6 is more than 10 times that of the water tank 1. The cooling pool 6 is equipped with an overflow outlet, which overflows when the water volume of the cooling pool 6 exceeds the elevation of the overflow outlet. The cooling pool 6 is used for cooling in low-temperature seasons. In high-temperature seasons, a water-cooling device can be added. When using a water-cooling device, the water volume of the cooling pool 6 should be appropriately reduced to ensure cooling efficiency.

[0027] The above embodiments are merely preferred embodiments of the present utility model. The protection scope of the present utility model should not be considered as limited to the specific forms described in the embodiments. The protection scope of the present utility model also includes equivalent technical means that can be conceived by those skilled in the art based on the concept of the present utility model.

Claims

1. A water-cooling control system for temperature control of large-volume concrete, wherein the large-volume concrete is temperature-controlled by water pipes, the water pipes being connected to a water tank via a water pump, characterized in that: The water pipe includes a first loop and a second loop. The first loop has a first outlet at its end, and the second loop has a second outlet at its end. The first outlet is connected to a water tank to allow water to flow into the tank. The second outlet is connected to a cooling pool. A water pump is installed in the cooling pool, and the water pump is connected to an inlet pipe, which is connected to the water tank. A water level sensor and a temperature sensor are installed in the water tank to monitor the water level and temperature. The water cooling control system is used to trigger the water pump to work or stop working based on the water level and temperature. When the water pump works, the inlet pipe draws water from the cooling pool to the water tank.

2. The water-cooling control system for temperature control of large-volume concrete as described in claim 1, characterized in that: The first circuit is arranged on the upper layer of the large-volume concrete, and the second circuit is arranged on the lower layer of the large-volume concrete. The water inlet ends of both the first circuit and the second circuit are connected to the water pipe connected to the water pump through a T-joint.

3. The water-cooling control system for temperature control of large-volume concrete as described in claim 1, characterized in that: The water cooling control system uses a microcontroller, which is connected to a relay. The relay controls the opening and closing of the water inlet pump.

4. The water-cooling control system for temperature control of large-volume concrete as described in claim 1, characterized in that: The cooling pool is set up in the open air to naturally cool the water flowing out of the second outlet. The water volume of the cooling pool is more than 10 times that of the water tank. The cooling pool is equipped with an overflow outlet, which overflows when the water volume of the cooling pool is greater than the elevation of the overflow outlet.

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