CN218149942U - Automatic temperature control system for mass concrete - Google Patents
Automatic temperature control system for mass concrete Download PDFInfo
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- CN218149942U CN218149942U CN202221697985.4U CN202221697985U CN218149942U CN 218149942 U CN218149942 U CN 218149942U CN 202221697985 U CN202221697985 U CN 202221697985U CN 218149942 U CN218149942 U CN 218149942U
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Abstract
The application provides an automatic temperature control system for mass concrete, which comprises a cooling water pipe, a cooling water tank, a detection device and a background cloud monitoring device, wherein the cooling water pipe is buried in the concrete, the cooling water pipe is communicated with the cooling water tank, an adjusting device for controlling the flow speed and flow of cooling water is arranged between the cooling water pipe and the cooling water tank, the detection device is used for collecting the temperature and the flow speed and flow of the cooling water and feeding back the flow speed and flow to the background cloud monitoring device through wireless transmission, and the background cloud monitoring device controls the adjusting device to adjust the flow speed and flow of the cooling water according to data fed back by the detection device; the cooling water pipe is communicated with a return water tank, a water tank communicating pipe is arranged between the return water tank and the cooling water tank, and a valve connected with the background cloud monitoring device is arranged on the water tank communicating pipe. The cloud platform data transmission and control are applied to concrete temperature control, on-site parameter monitoring and remote control are achieved, reaction is rapid, and construction is convenient.
Description
Technical Field
The application relates to the technical field of mass concrete construction, in particular to an automatic mass concrete temperature control system.
Background
After concrete pouring, hydration reaction can release a large amount of heat, lead to the inside and outside not equidimension temperature rise of concrete, and outside and air contact rate of rise of temperature itself are slower, and inside intensification is obvious, consequently can cause the internal surface difference in temperature grow trend earlier, arranges the metal pipe in advance, and water cooling is led to after pouring can control the internal surface difference in temperature on the one hand, can prevent simultaneously that the internal temperature is too high. In the middle and later period, the temperature rising trend gradually becomes gentle until the temperature begins to drop, and the temperature reduction speed needs to be controlled.
At present, a large-volume concrete temperature control system is formed by embedding a cooling pipe and a temperature measuring element in concrete, when the concrete begins to be poured, a temperature measuring instrument is held by a person to measure temperature, whether the cooling pipe needs to be adjusted or not is judged, a water inlet of the cooling pipe is connected with a tap water pipe, the flow speed and the flow are controlled by a valve in the middle, a specially-assigned person is needed to measure the internal temperature of the concrete in the process, the measurement record is analyzed in time, and then the valve is used for adjusting the flow speed and the flow of the cooling water pipe, so that the control effect is achieved. When the system is adopted to cool the concrete, the automation degree is low, and manual on-site adjustment is needed; the response is slow, and the work efficiency is reduced by the processes of concrete temperature rise → manual measurement → manual adjustment and the like; the workload is large, and if a plurality of large-volume concretes are poured at the same time, the pouring is difficult to control only by manpower.
SUMMERY OF THE UTILITY MODEL
The main objective of this application aims at providing one kind and reaches the automatic temperature control system of bulky concrete of automatically regulated condenser tube velocity of flow, flow through wireless transmission control, and it can effectively control the temperature of bulky concrete at the in-process of pouring.
In order to achieve the above object, the present application provides the following technical solutions:
a mass concrete automatic temperature control system comprises a cooling water pipe, a cooling water tank, a detection device and a background cloud monitoring device, wherein the cooling water pipe is embedded in concrete in a waveform mode, the cooling water pipe is communicated with the cooling water tank, an adjusting device used for controlling the flow speed and flow of cooling water is arranged between the cooling water pipe and the cooling water tank, the detection device is used for collecting the temperature of the concrete and the flow speed and flow of the cooling water flowing to the cooling water pipe from the cooling water tank and feeding back the flow speed and flow to the background cloud monitoring device through wireless transmission, and the background cloud monitoring device controls the adjusting device to adjust the flow speed and flow of the cooling water according to data fed back by the detection device;
the water outlet of the cooling water pipe is communicated with a return water tank used for storing high-temperature return water, a water tank communicating pipe for communicating the return water tank and the cooling water tank is arranged between the return water tank and the cooling water tank, and a valve which is wirelessly connected with the background cloud monitoring device is arranged on the water tank communicating pipe.
Further setting: the detection device comprises a temperature sensor arranged on the concrete and a flowmeter arranged between the cooling water pipe and the cooling water tank.
Further setting: the temperature sensor and the flow meter are both connected with a wireless data collector, and the wireless data collector sends collected temperature information, flow velocity and flow information to the background cloud monitoring system in a wireless transmission mode.
Further setting: the background cloud monitoring device comprises a temperature monitoring module and a flow monitoring and adjusting module, the temperature monitoring module is used for receiving temperature information collected by the temperature sensor, and the flow monitoring and adjusting module is used for receiving flow speed and flow information collected by the flow meter and adjusting the flow speed and flow of cooling water through the adjusting device.
Further setting: the cooling water pipe sets up many along the high layering of concrete, the flowmeter is taken into account adjusting device one-to-one and is corresponded to many cooling water pipe sets up many sets, and many cooling water pipe with be equipped with the water inlet water knockout drum between the coolant tank.
Further setting: and a water outlet flow closing device is arranged between the water outlets of the cooling water pipes and the return water tank.
Compared with the prior art, the scheme of the application has the following advantages:
1. in the automatic temperature control system of bulky concrete of this application, realize on-the-spot parameter monitoring and remote control with cloud platform data transmission and control application to concrete temperature control, the reaction is rapid, construction convenience, and the velocity of flow and the flow that cooperate wireless flow control valve, wireless flowmeter to realize automatically regulated cooling water simultaneously have improved labor efficiency. And through the reasonable regulation, storage, transportation and distribution of cooling water and high-temperature backflow water, the water circulation cooling in the concrete can be realized, the utilization rate of water resources is improved, and the quality and efficiency of engineering construction are ensured, so that the civilized construction requirements of energy conservation and environmental protection are met.
2. In the automatic temperature control system of bulky concrete of this application, realize the reposition of redundant personnel to the cooling water through coolant tank and water inlet water knockout drum, then correspond and set up detection device and adjusting device on every condenser tube, realize the regulation respectively of each layer of concrete, can adjust to the concrete position of different positions, ensure the uniformity of concrete cooling in-process then.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of an embodiment of an automatic bulk concrete temperature control system according to the present application;
fig. 2 is a process flow chart of the temperature control method of the automatic temperature control system for mass concrete according to the present application.
In the figure, 1, a cooling water pipe; 2. a cooling water tank; 21. a water inlet water separator; 3. a temperature sensor; 4. a flow meter; 5. a wireless data acquisition unit; 6. a background cloud monitoring device; 61. a temperature monitoring module; 62. a flow monitoring and adjusting module; 7. a wireless flow regulating valve; 8. a return water tank; 81. a water collector at the water outlet; 9. a water tank communicating pipe; 91. and (4) a valve.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present application and are not construed as limiting the present application.
The utility model provides a need the manual work to hold the temperature measurement instrument and judge whether it needs the cooling tube to the temperature measurement of present concrete, and whole degree of automation is low, the response is slow, the problem that work load is big, and this application provides a bulky concrete automatic temperature control system, please combine figure 1, cooperate controller and water tank through each temperature measurement component, realize the automatic regulation cooling tube 1 flow velocity of flow to reach the purpose of the temperature of control bulky concrete in the process of pouring.
The automatic temperature control system for the large-volume concrete comprises a cooling water pipe 1, a cooling water tank 2, a detection device and a background cloud monitoring device 6, wherein the cooling water pipe 1 is embedded in the concrete in a waveform mode, the cooling water pipe 1 is communicated with the cooling water tank 2, cooling water is stored in the cooling water tank 2 and flows to the cooling water pipe 1 from the cooling water tank 2 so as to cool the interior of the concrete through heat exchange, an adjusting device used for controlling the flow speed and flow of the cooling water is arranged between the cooling water pipe 1 and the cooling water tank 2, the detection device is used for collecting the temperature of the concrete and the flow speed and flow of the cooling water flowing from the cooling water tank 2 to the cooling water pipe 1 and simultaneously transmitting the collected data to the background cloud monitoring device 6 in a wireless mode, and the background cloud monitoring device 6 controls the adjusting device according to the data fed back by the detection device so as to adjust the flow speed and flow of the cooling water. In addition, backstage cloud monitoring device 6 also monitors the temperature of cooling water in cooling water tank 2 in step, the delivery port intercommunication of condenser tube 1 has the return water tank 8 of storing the high temperature water after the heat exchange, return water tank 8 with be equipped with water tank communicating pipe 9 between cooling water tank 2, be equipped with on the water tank runner pipe and be used for controlling the high temperature backward flow in the return water tank 8 flows into valve 91 in cooling water tank 2.
Specifically, the detection device comprises a temperature sensor 3 and a flowmeter 4, wherein a plurality of temperature measuring points are arranged in a template of the mass concrete structure in a decibel manner by the temperature sensor 3, so that real-time temperature information of the temperature measuring points is transmitted to the background cloud monitoring device 6 in a wireless information transmission manner; the flow meter 4 is arranged between the cooling water tank 2 and the cooling water pipe 1 and used for collecting the flow and the flow speed of cooling water flowing to the cooling water pipe 1 from the cooling water tank 2 and sending collected corresponding data to the background cloud monitoring device 6 through a wireless information transmission method.
Backstage cloud monitoring device 6 is including being used for receiving including temperature monitoring module 61 and flow monitoring and adjusting module 62, temperature monitoring module 61 is used for receiving the temperature information that temperature sensor 3 gathered, flow monitoring and adjusting module 62 are used for receiving velocity of flow, the flow information that flowmeter 4 gathered and pass through adjusting device adjusts the velocity of flow, the flow of cooling water, backstage cloud monitoring device 6 can combine the real-time temperature information of concrete and the velocity of flow, the flow of cooling water to control adjusting device is with further flow and the velocity of flow of adjusting the cooling water to reach the purpose of accurate regulation concrete temperature.
In addition, backstage cloud monitoring device 6 with all connect through wireless transmission between detection device, the adjusting device, be located concrete department and be provided with wireless data collection station 5, detection device with wireless data collection station 5's input is connected in order to carry out the input of data and gathers, through wireless data collection station 5 sends wireless signal to the backstage cloud monitored control system, by after backstage cloud monitored control system receives corresponding signal, and make corresponding regulation control signal feedback to adjusting device is in order to accomplish the regulation of cooling water velocity of flow, flow. The application can realize quick response and adjust the flow and the flow speed of cooling water by applying the cloud platform data transmission and control mode to the temperature control of concrete. Meanwhile, a wireless transmission mode is adopted, real-time monitoring and remote control of field parameters can be achieved, the reaction speed is high, construction is convenient, labor efficiency is improved, and the adjusting precision of the manual control valve 91 is higher than that of a traditional manual control valve.
Furthermore, the concrete pouring of this embodiment adopts the layering pouring method, and every layer of pouring thickness is no more than 30cm, and the concrete of layering is in order to increase concrete surface coefficient, is favorable to the inside heat dissipation of concrete. In order to ensure the temperature control of each layer of concrete, one cooling water pipe 1 may be disposed corresponding to each layer of concrete, that is, in this embodiment, a plurality of cooling water pipes 1 are disposed along the height direction of the concrete, and each cooling water pipe 1 is disposed in a wave shape in the corresponding concrete layer, so as to enlarge the cooling area of the cooling water pipe 1.
Because one cooling water pipe 1 is buried in the concrete of each layer, a flowmeter 4 and the adjusting device are arranged on each corresponding cooling water pipe 1, the adjusting device comprises a wireless flow adjusting valve 7, and the wireless flow adjusting valve 7 can receive a control signal sent by the background cloud monitoring device 6 and adjust the flow and the flow speed of the cooling water pipe 1 according to the control signal. In addition, the adjusting device can also be set to other flow modes for adjusting the flow of the water pump.
It should be noted that the above embodiment is only an example in which one cooling water pipe 1 is provided in one concrete horizontal layer, and those skilled in the art can provide a plurality of cooling water pipes 1 in the same concrete horizontal layer according to the above technical contents and actual construction requirements.
Simultaneously, many condenser tube 1 with be equipped with water inlet water knockout drum 21 between cooling water tank 2, through water inlet water knockout drum 21 realizes the reposition of redundant personnel operation of single tube multichannel, can reduce the leak in management field, practices thrift pipeline material and time, has promoted efficiency.
The high-temperature water reflows through the heat exchange in the concrete and flows out from the water outlet of the cooling water pipe 1 and flows back to the backflow water tank 8 for storage, because the temperature of the backflow high-temperature water is higher, when the cooling water with the too low temperature is introduced into the cooling water pipe 1 for heat exchange, the low temperature easily causes serious hydration of the concrete, even can cause a pseudo-coagulation phenomenon to influence the pouring construction of the concrete, and then the high-temperature backflow high-temperature water in the backflow water tank 8 can be added into the cooling water in the cooling water tank 2 for mixing so as to adjust the temperature of the cooling water. The cooling water tank 2 is also provided with a wireless temperature sensor 3 which can be used for detecting the temperature of cooling water in the cooling water tank 2 in real time and sending temperature data to the background cloud monitoring device 6 in a wireless transmission mode. The water tank communication pipe 9 is used for controlling backflow high-temperature water in the backflow water tank 8 to flow into the wireless valve 91 in the cooling water tank 2, the wireless valve 91 can receive a control signal sent by the background cloud monitoring device 6, and opening and closing of the wireless valve 91 and adjustment of the flow and the flow speed of the backflow high-temperature water are completed according to the control signal.
Furthermore, a water outlet water collector 81 is arranged between the water outlets of the cooling water pipes 1 and the return water tank 8, and the return high-temperature water flowing out of the cooling water pipes 1 can be converged and then returned to the return water tank 8 for storage through the water outlet water collector 81, so that the high-temperature return water is recycled, and the energy-saving effect is achieved.
In conclusion, the automatic temperature control system of bulky concrete of this application realizes on-the-spot parameter monitoring and remote control with cloud platform data transmission and control application to concrete control by temperature change, and the reaction is rapid, and construction convenience cooperates wireless flow control valve 7, wireless flowmeter 4 to realize automatically regulated cooling water's velocity of flow and flow simultaneously, has improved labor efficiency. And through the reasonable regulation, storage, transportation and distribution of cooling water and high-temperature backflow water, the water circulation cooling in the concrete can be realized, the utilization rate of water resources is improved, and the quality and efficiency of engineering construction are ensured, so that the energy-saving and environment-friendly civilized construction requirement is met.
The application also relates to a temperature control method using the automatic temperature control system for mass concrete, which specifically comprises the following steps with reference to fig. 2:
first, during concrete construction, a cold water pipe of the bulk concrete automatic temperature control system is buried in concrete, and the cooling water pipe 1 is communicated with the cooling water tank 2, and cooling water is stored in the cooling water tank 2 to circulate and pass through the cooling water pipe 1.
When the concrete is constructed, the mold-entering temperature of the concrete is required to be controlled to be not higher than 30 ℃, the concrete adopts a layered pouring method, the cooling water pipe 1 is correspondingly embedded in each layer of concrete in the process of pouring each layer of concrete, and the pouring of the upper layer of concrete is completed before the initial setting of the lower layer of concrete or on the basis that the previous pouring of concrete can be remolded. Concrete cover buries underground condenser tube 1 after, is connected cold water pipe and cooling water tank 2, and many condenser tube 1 passes through water inlet water knockout drum 21 and is connected with cooling water tank 2, can realize that a container falls into several ways of output, optimizes the pipeline arrangement of this application, makes things convenient for pipeline control.
The cooling water tank 2 stores cooling water, and the cooling water can utilize natural water resources around the concrete construction, so that the investment of water supply equipment can be reduced. Meanwhile, a temperature sensor 3 for monitoring the temperature of cooling water inside the cooling water tank 2 in real time is arranged in the cooling water tank 2, and the temperature sensor 3 collects the temperature of the cooling water and sends the temperature to a background cloud monitoring system before the cooling water in the cooling water tank 2 is taken to enter a cooling water pipe 1 for circulation. When the temperature of the cooling water is higher than the third temperature threshold, the cooling water tank 2 is connected to an external water resource for cooling, such as a river, a reservoir, a lake, etc. near the location of the concrete structure. And when cooling water temperature was less than the fourth temperature threshold value, valve 91 on backstage cloud monitored control system control water tank communicating pipe 9 was opened, made the high temperature backward flow water of storage in backward flow water tank 8 enter into cooling water tank 2, mixed with microthermal cooling water in order to improve the temperature of cooling water, avoided getting into the cooling water temperature in condenser tube 1 too high, can't play the effect of cooling, or the temperature is crossed lowly, caused the condition of concrete setting process fracture. Preferably, the third temperature threshold of the present embodiment is 25 ℃ and the fourth temperature threshold is 10 ℃.
Furthermore, in addition to the influence of the hydration heat of the concrete, the temperature difference between the concrete and the inside is generated due to the outside temperature, and in order to reduce the temperature difference between the inside and the outside as much as possible, the concrete is circularly maintained by using cooling water before the hydration heat peak value in the concrete appears, and at the moment, the temperature difference between the temperature of the cooling water and the temperature in the concrete is controlled not to exceed 25 ℃.
And then, the temperature sensors 3 are used for monitoring the temperature inside and on the surface of the concrete in real time, when the internal temperature of the concrete reaches a preset first temperature threshold value, cooling water in the cooling water tank 2 is taken as circulating cooling water, and the flow speed of the cooling water are regulated according to the temperature values acquired by the temperature sensors 3 until the internal temperature of the concrete is lower than a preset second temperature threshold value.
The first temperature threshold may be a concrete hydration heat peak value or a certain temperature value close to the concrete hydration heat peak value, and since the concrete hydration heat peak value is affected by cement variety, usage amount, concrete mold-entering temperature, and the like, the preset first temperature threshold may be set according to actual construction requirements, which is not limited herein. The second temperature threshold is 40 ℃, and the temperature difference value between the concrete internal temperature removal temperature and the surface temperature is lower than 25 ℃.
When the flow and the flow speed of cooling water are regulated and controlled according to temperature values acquired by the temperature sensors 3, firstly, the temperature change rule of each temperature measuring point is calculated and obtained based on a pre-established finite element analysis model of the large-volume concrete structure, then, the water flow of the cooling water pipe 1 in each time period is calculated based on the temperature change rule of each temperature measuring point and the actually measured temperature value, and then, the water flow speed in the cooling water pipe 1 is controlled according to the water flow. According to the method, the large-volume concrete structure finite element analysis model is established, grid division is carried out, hydrothermal analysis is carried out to obtain the highest temperature and the temperature distribution rule of each temperature measurement point, and then the highest temperature and the temperature gradient are judged; according to the heat energy exchange principle, the purpose of effectively controlling the temperature gradient is achieved, the water flow of the cooling water pipe 1 in each time period is calculated by combining the actually-measured temperature value of each temperature measuring point, and the water flow speed in the cooling water pipe 1 is effectively controlled according to the water flow, so that the temperature difference in the large-volume concrete structure is reduced, and the purpose of effectively and uniformly controlling the temperature is achieved.
In addition, the temperature control method of the automatic temperature control system for mass concrete adopts a wireless communication mode, and the data monitored by the detection device in real time is wirelessly transmitted to the background cloud monitoring device 6 by the wireless data acquisition device 5, so that the monitoring of field parameters is realized, the remote control of workers is facilitated, the reaction is rapid, and the construction is convenient. Simultaneously, this application adopts wireless flow control valve 7, wireless flowmeter 4 to realize the regulation of the velocity of flow, the flow of cooling water, compares traditional artifical temperature measurement and carries out the mode of adjusting, has promoted labor efficiency greatly, has effectively solved the problem that manual regulation was not recorded an event and is extravagant the manpower. The automatic temperature control system and the temperature control method for the mass concrete are used for construction, the highest temperature peak in the mass concrete can be basically controlled within the range of 65-70 ℃, the inner surface temperature difference of the concrete is within 25 ℃, the cooling rate meets the requirement of 2 ℃/d, the inlet and outlet temperature of cooling water is less than or equal to 10 ℃, and the like, and all the indexes meet the concrete construction requirement.
It should be noted that, as will be understood by those skilled in the art, all or part of the processes in the methods of the above embodiments may be implemented by a computer program, which may be stored in a computer-readable storage medium, and when executed, may include the processes of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), or the like.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, and the order of execution is not necessarily sequential, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The foregoing is only a few embodiments of the present application and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present application, and that these improvements and modifications should also be considered as the protection scope of the present application.
Claims (6)
1. The automatic temperature control system for the mass concrete is characterized by comprising a cooling water pipe, a cooling water tank, a detection device and a background cloud monitoring device, wherein the cooling water pipe is embedded in the concrete in a waveform manner, the cooling water pipe is communicated with the cooling water tank, an adjusting device for controlling the flow speed and flow of the cooling water is arranged between the cooling water pipe and the cooling water tank, the detection device is used for acquiring the temperature of the concrete and the flow speed and flow of the cooling water flowing to the cooling water pipe from the cooling water tank and feeding the flow speed and flow back to the background cloud monitoring device through wireless transmission, and the background cloud monitoring device controls the adjusting device to adjust the flow speed and flow of the cooling water according to data fed back by the detection device;
the water outlet of the cooling water pipe is communicated with a return water tank used for storing high-temperature return water, a water tank communicating pipe for communicating the return water tank and the cooling water tank is arranged between the return water tank and the cooling water tank, and a valve which is wirelessly connected with the background cloud monitoring device is arranged on the water tank communicating pipe.
2. The automatic temperature control system for mass concrete according to claim 1, wherein the detection device comprises a temperature sensor disposed on the concrete and a flow meter disposed between the cooling water pipe and the cooling water tank.
3. The automatic temperature control system for mass concrete according to claim 2, wherein the temperature sensor and the flow meter are both connected with a wireless data collector, and the wireless data collector sends collected temperature information, flow velocity and flow information to the background cloud monitoring system in a wireless transmission mode.
4. The automatic temperature control system for mass concrete according to claim 2, wherein the background cloud monitoring device comprises a temperature monitoring module and a flow monitoring and adjusting module, the temperature monitoring module is used for receiving temperature information acquired by the temperature sensor, and the flow monitoring and adjusting module is used for receiving flow speed and flow information acquired by the flow meter and adjusting the flow speed and flow of cooling water through the adjusting device.
5. The automatic temperature control system for mass concrete according to claim 2, wherein a plurality of cooling water pipes are arranged along the height of the concrete in layers, a plurality of sets of flow meters and adjusting devices are arranged corresponding to the plurality of cooling water pipes one by one, and a water inlet separator is arranged between the plurality of cooling water pipes and the cooling water tank.
6. The automatic temperature control system for mass concrete according to claim 5, wherein a water outlet flow combiner is arranged between the water outlets of the cooling water pipes and the return water tank.
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| CN202221697985.4U CN218149942U (en) | 2022-07-01 | 2022-07-01 | Automatic temperature control system for mass concrete |
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| CN202221697985.4U CN218149942U (en) | 2022-07-01 | 2022-07-01 | Automatic temperature control system for mass concrete |
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