Large-volume concrete hydration heat control system

Abstract

The utility model belongs to the technical field of building construction, and discloses a mass concrete hydration heat control system which comprises a temperature adjusting assembly, a water supply assembly and a cooling water pipe, the temperature adjusting assembly comprises a temperature adjusting water tank and a spraying pipe, and the spraying pipe can spray water into the temperature adjusting water tank; the water supply assembly is connected with the spraying pipe; the plurality of cooling water pipes are pre-buried in the mass concrete, an inlet of each cooling water pipe is connected with the temperature adjusting water tank through the flow divider, and an outlet of each cooling water pipe is connected with the water supply assembly through the water return pipes in one-to-one correspondence to form circulation. According to the mass concrete hydration heat control system, the cyclic utilization time of cooling water is remarkably prolonged, and the total use amount of the cooling water is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to building construction technical field especially, relate to a mass concrete hydration heat control system. BACKGROUND

[0002] The mass concrete of concrete structure object entity minimum geometric size not less than 1m, or the concrete that is expected to cause harmful crack to produce because of the temperature change and shrinkage of cementitious material hydration in concrete, is called mass concrete.

[0003] In order to solve the problem of mass concrete hydration heat and the volume deformation caused thereby, to minimize cracking, the method of embedding cooling water pipe in mass concrete and circulating cooling water into cooling water pipe is usually used to cool the inside of mass concrete. In fact, with the circulation of cooling water in the inside of mass concrete, the temperature of cooling water rises, and its cooling efficiency for mass concrete decreases, so new cooling water with lower temperature needs to be continuously circulated, resulting in waste of water resources. SUMMARY

[0004] The utility model discloses a mass concrete hydration heat control system, which solves the problem of large amount of cooling water in the process of cooling mass concrete.

[0005] To achieve this purpose, the utility model adopts the following technical scheme:

[0006] The mass concrete hydration heat control system comprises a temperature adjusting assembly, a water supply assembly and cooling water pipes, the temperature adjusting assembly comprises a temperature adjusting water tank and a spraying pipe, the spraying pipe can spray water into the temperature adjusting water tank, the water supply assembly is connected with the spraying pipe, a plurality of cooling water pipes are embedded in mass concrete, the inlets of the cooling water pipes are connected with the temperature adjusting water tank through a flow divider, and the outlets of the cooling water pipes are connected with the water supply assembly through one-to-one return water pipes to form a circulation.

[0007] Optionally, the water supply assembly comprises a first water pump and a storage water tank, the return water pipes are connected to the storage water tank, and the first water pump is connected with the storage water tank and the spraying pipe.

[0008] Optionally, the water supply assembly further comprises a first temperature sensor, and the first temperature sensor is arranged in the storage water tank.

[0009] Optionally, the water supply assembly further comprises a second water pump connected with an external water source, and the second water pump is connected with the temperature adjusting water tank.

[0010] Optionally, the second water pump is connected with the storage water tank through a water changing valve 22, and a liquid level sensor is arranged in the storage water tank.

[0011] Optionally, the temperature regulating assembly further comprises a heating element, and the heating element is arranged in the temperature regulating water tank.

[0012] Optionally, the outlet of the second water pump and the outlet of the temperature regulating water tank are respectively provided with a second temperature sensor and a third temperature sensor.

[0013] Optionally, the storage water tank is further provided with a turbidimeter.

[0014] Optionally, the first water pump and the spray pipe are connected through a three-way regulating valve.

[0015] Optionally, the shunt and the temperature regulating water tank are connected with a third water pump.

[0016] The beneficial effects of the present application are as follows: the concrete hydration heat control system utilizes the temperature regulating assembly to regulate and control the temperature of the cooling water flowing into the mass concrete, prolongs the recyclable time of the cooling water, reduces the total amount of the cooling water, and the temperature regulating assembly increases the contact area of the cooling water and the external environment by means of spraying, so as to realize the cooling of the cooling water, and the energy consumption is small. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of the mass concrete hydration heat control system in the embodiment of the present application.

[0018] In the drawings:

[0019] 1, temperature regulating water tank; 2, shunt; 3, first water pump; 4, storage water tank; 5, second water pump; 6, first flow regulating valve; 7, second flow regulating valve; 8, first temperature sensor; 9, second temperature sensor; 10, third temperature sensor; 11, first flow meter; 12, second flow meter; 13, third flow meter; 14, three-way regulating valve; 15, third water pump; 16, turbidimeter; 17, liquid level sensor; 18, drain valve; 19, frequency converter; 20, cloud; 21, controller; 22, water changing valve;

[0020] 100, mass concrete. DETAILED DESCRIPTION

[0021] The present application will be further described in detail below in combination with the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present application, and not to limit the present application. In addition, it should be noted that, in order to facilitate the description, only the parts related to the present application are shown in the drawings, not all the structures.

[0022] In the description of the utility model, unless another definite provision and limitation, the term "connect", "connection", "fixed" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrated;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's interaction relationship.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0023] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the first and second features direct contact, also can include the first and second features are not direct contact but contact through the additional features between them.Moreover, the first feature is "on", "above" and "on" the second feature includes the first feature is directly above and obliquely above the second feature, or just indicates that the first feature horizontal height is higher than the second feature.The first feature is "under", "below" and "under" the second feature includes the first feature is directly below and obliquely below the second feature, or just indicates that the first feature horizontal height is less than the second feature.

[0024] In the description of the embodiment, the terms "on", "under", "left", "right" and other orientation or position relationship are based on the orientation or position relationship shown in the drawing, only for the convenience of description and simplification operation, and not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore cannot be understood as a limitation on the utility model.In addition, the terms "first", "second" are only used to distinguish in the description, and have no special meaning.

[0025] Reference Figure 1 As shown in the description of the utility model, a mass concrete hydration heat control system is provided, which comprises a water supply assembly, a temperature adjusting assembly, a flow divider 2, a cooling water pipe and a return water pipe, wherein the temperature adjusting assembly comprises a temperature adjusting water tank 1 and a spray pipe (not shown in the figure), the spray pipe can spray water into the temperature adjusting water tank 1, and the water supply assembly is connected with the spray pipe to supply cooling water to the temperature adjusting water tank 1 through the spray pipe.The temperature adjusting water tank 1 is connected with a plurality of cooling water pipes embedded in the mass concrete 100 through the flow divider 2, the outlet of each cooling water pipe is connected with the water supply assembly through a one-to-one corresponding return water pipe, forming a circulation.

[0026] When the cooling water is circulated in the above-mentioned mass concrete hydration heat control system, it can enter the temperature adjusting water tank 1 in the form of spraying through the spray pipe, so as to realize cooling, so that the cooling water can keep a low temperature in the circulation process, thereby being able to circulate in the mass concrete 100 for a long time, reducing the amount of cooling water required, saving water resources.

[0027] Specifically, the top of the temperature-adjusting water tank 1 is open, and the spray pipe sprays the cooling water into the temperature-adjusting water tank 1 in a spraying manner, so that the heat exchange efficiency between the cooling water and the external environment is increased, and the temperature of the cooling water is effectively reduced.

[0028] In this embodiment, the water supply assembly includes a first water pump 3 and a storage water tank 4, the return water pipe is connected to the storage water tank 4, and the first water pump 3 is connected to the storage water tank 4 and the spray pipe to pump the water in the storage water tank 4 to the spray pipe.

[0029] Specifically, the water supply assembly further includes a first temperature sensor 8 arranged in the storage water tank 4 to monitor the temperature of the cooling water flowing back into the storage water tank 4.

[0030] With the circulating flow of the cooling water, the heat absorbed by the cooling water gradually increases, and it is difficult to reduce the cooling water to the preset temperature threshold range required by the mass concrete 100 in a spraying cooling manner. On this basis, the water supply assembly further includes a second water pump 5 connected to an external water source, which can be a tap water pipeline or a stream; the second water pump 5 is connected to the temperature-adjusting water tank 1 to supply water to the temperature-adjusting water tank 1, so as to mix with the cooling water supplied by the first water pump 3 and reduce the temperature of the cooling water in the original circulation.

[0031] Since the cooling water is in a circulating flow, when the first water pump 3 and the second water pump 5 simultaneously deliver cooling water to the cooling water pipe in the mass concrete 100, the amount of cooling water flowing back into the storage water tank 4 must be greater than the initial amount of cooling water in the storage water tank 4. On this basis, an overflow port is further arranged on the storage water tank 4 for the cooling water to overflow.

[0032] In this embodiment, the second water pump 5 is connected to the storage water tank 4 through a water changing valve 22, and before the construction of the mass concrete 100, the water changing valve 22 can be opened and the second water pump 5 can be used to deliver water to the storage water tank 4. At the same time, in order to realize the quantitative delivery of cooling water to the storage water tank 4, a liquid level sensor 17 is further arranged in the storage water tank 4 to monitor the temperature in the storage water tank 4.

[0033] A drain valve 18 is further arranged at the bottom of the storage water tank 4 to drain the cooling water from the storage water tank 4 after the construction of the mass concrete 100 is completed.

[0034] The cooling water in the storage water tank 4 carries impurities after long-term circulation, which may block the water pipe. In order to avoid the above situation, a turbidity meter 16 is further arranged in the storage water tank 4, and when the water turbidity in the storage water tank 4 exceeds the preset turbidity range, the water in the storage water tank 4 is drained. During this period, the second water pump 5 alone delivers cooling water to the temperature-adjusting water tank 1 to avoid affecting the cooling effect of the mass concrete 100.

[0035] Specifically, the first water pump 3 is connected to the spray pipe via a three-way regulating valve 14. When the turbidity of the cooling water in the storage tank 4 exceeds a preset turbidity range, the three-way regulating valve 14 controls the spray pipe to disconnect from the first water pump 3, and the cooling water in the storage tank 4 is discharged through the three-way regulating valve 14. At this time, the first water pump 3 remains connected to the storage tank 4, which increases the speed at which the cooling water is discharged from the storage tank 4 compared to being discharged through the drain valve 18.

[0036] According to the "Standard for Construction of Mass Concrete", the temperature difference between the inlet temperature of the cooling water and the maximum temperature of the mass concrete 100 should not exceed 25°C. Due to the influence of the ambient temperature, there is a possibility that the temperature of the cooling water supplied by the second water pump 5 is lower than the preset temperature threshold of the mass concrete 100. Therefore, the temperature control component also includes a heating element (not shown in the figure). The heating element is set in the temperature control water tank 1 to heat the cooling water when the cooling water temperature is too low.

[0037] Specifically, the outlet of the second water pump 5 and the outlet of the temperature regulating water tank 1 are respectively equipped with a second temperature sensor 9 and a third temperature sensor 10. When the second temperature sensor 9 detects that the temperature of the cooling water entering the temperature regulating water tank 1 is lower than the preset temperature threshold of the large volume concrete 100, the heating element is activated. The third temperature sensor 10 is used to monitor whether the temperature of the cooling water after passing through the temperature regulating water tank 1 is within the preset temperature threshold of the large volume concrete 100, so as to realize closed-loop control.

[0038] The water supply assembly also includes a first flow meter 11 and a second flow meter 12. The first flow meter 11 is used to monitor the flow rate of cooling water pumped by the first water pump 3 to the temperature control assembly, and the second flow meter 12 is used to monitor the flow rate of cooling water pumped by the second water pump 5 to the temperature control assembly. Simultaneously, a second flow regulating valve 7 is connected between the second water pump 5 and the temperature control tank 1 to regulate the flow rate of cooling water pumped by the second water pump 5 into the temperature control tank 1.

[0039] In order to make the water in the temperature-regulating water tank 1 flow quickly to the distributor 2 and increase the cooling water circulation efficiency, the large-volume concrete hydration heat control system also includes a third water pump 15, which is connected to the temperature-regulating water tank 1 and the distributor 2.

[0040] In this embodiment, a first flow regulating valve 6 is connected between the flow divider 2 and the cooling water pipe. Multiple first flow regulating valves 6 are connected one-to-one with multiple cooling water pipes to adjust the flow rate of cooling water entering each cooling water pipe according to the temperature feedback from the temperature measuring devices embedded in each measuring point within the large-volume concrete 100. Simultaneously, a third flow meter 13 is also installed between the first flow regulating valve 6 and the cooling water pipe to monitor flow rate changes.

[0041] In the embodiment, the mass concrete hydration heat control system control module comprises a plurality of controllers 21 in communication connection with the water supply assembly and the temperature adjusting assembly, the controllers 21 are interconnected in a network, the obtained data can be transmitted to the cloud 20, and parameters are issued downward through the cloud 20 to set the actual water inflow and the temperature, so as to ensure the communication of the field data, and to help machine learning data in the later period, to make trend prediction, to issue flow distribution relationship, and to adjust the actual water inflow. The first water pump 3, the second water pump 5 and the third water pump 15 are all controlled through the frequency converter 19, so that the actual water inflow is realized through the adjustment of the frequency converter 19.

[0042] Obviously, the above embodiments of the utility model are only examples for clearly illustrating the utility model, and are not the limitation of the embodiments of the utility model. For ordinary skilled in the art, various obvious changes, readjustment and replacement can be made without departing from the protection scope of the utility model. Here, all the embodiments need not and cannot be exhausted. Any modification, equivalent replacement and improvement within the spirit and principle of the utility model should be included in the protection scope of the utility model claim.

Claims

1. A system for controlling the heat of hydration of mass concrete, characterized in that, The mass concrete hydration heat control system comprises: a temperature adjusting assembly comprising a temperature adjusting water tank (1) and a spraying pipe capable of spraying water into the temperature adjusting water tank (1); a water supply assembly connected with the spraying pipe; cooling water pipes embedded in mass concrete (100), the inlets of the cooling water pipes being connected with the temperature adjusting water tank (1) through a flow divider (2), and the outlets of the cooling water pipes being connected with the water supply assembly through one-to-one return water pipes to form a circulation.

2. The mass concrete hydration heat control system of claim 1, wherein, The water supply assembly comprises a first water pump (3) and a storage water tank (4), the return water pipes being connected with the storage water tank (4), and the first water pump (3) being connected with the storage water tank (4) and the spraying pipe.

3. The mass concrete hydration heat control system of claim 2, wherein, The water supply assembly further comprises a first temperature sensor (8) arranged in the storage water tank (4).

4. The mass concrete hydration heat control system of claim 2, wherein, The water supply assembly further comprises a second water pump (5) connected with an external water source, the second water pump (5) being connected with the temperature adjusting water tank (1).

5. The mass concrete hydration heat control system of claim 4, wherein, The second water pump (5) is connected with the storage water tank (4) through a water changing valve (22), and a liquid level sensor (17) is arranged in the storage water tank (4).

6. The mass concrete hydration heat control system of claim 4, wherein, The temperature adjusting assembly further comprises a heating element arranged in the temperature adjusting water tank (1).

7. The mass concrete hydration heat control system of claim 4, wherein, The outlet of the second water pump (5) and the outlet of the temperature adjusting water tank (1) are respectively provided with a second temperature sensor (9) and a third temperature sensor (10).

8. The mass concrete system of claim 2, wherein, A turbidimeter (16) is further arranged in the storage water tank (4).

9. The mass concrete system of claim 6, wherein, The first water pump (3) and the spraying pipe are connected through a three-way regulating valve (14).

10. The mass concrete system of any one of claims 1-9, wherein, The flow divider (2) and the temperature adjusting water tank (1) are connected with a third water pump (15).

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