Balanced cooling module, temperature control system and temperature control method for large volume concrete

Abstract

The present application relates to the field of concrete pouring construction, and in particular to a balanced cooling module, temperature control system and temperature control method for large-volume concrete. Compare the first temperature near the first pair of joints of the cooling tube group and the second temperature near the second pair of joints of the cooling tube group. If the first temperature is greater than the second temperature, control the cooling medium to flow through the first control valve through the first main water outlet pipe and the first water outlet branch pipe and into the cooling tube group through the first pair of joints, and then pass through the second water outlet pipe group and the second control valve to be discharged from the drain pipe. If the first temperature is lower than the second temperature, control the cooling medium to flow through the first control valve through the second main water outlet pipe and the second water outlet branch pipe and into the cooling tube group through the second pair of joints, and then pass through the first water outlet pipe group and the drain pipe to be discharged from the second control valve through the drain pipe. When switching the direction of water flow, it is only necessary to control the first control valve and the second control valve, so that the water inlet pipe always inflows water and the drain pipe always drains water, thereby improving the reliability of the control of the balance of concrete cooling.

Description

Technical Field

[0001] The present application relates to the technical field of concrete pouring construction, and in particular to a balanced cooling module, a temperature control system and a temperature control method for large-volume concrete. Background Art

[0002] The continuous expansion of the scale of construction projects has promoted the widespread application of mass concrete in the construction industry. Since the structural section of mass concrete is thick and has a small surface coefficient, the hydration heat generated during the pouring process is difficult to dissipate in time and accumulates inside, causing the internal temperature of the concrete to be too high. When the external ambient temperature is too low, the temperature difference between the inside and outside of the concrete will increase, resulting in excessive stress, causing cracks, and affecting the stability and durability of the concrete structure.

[0003] Traditional temperature control measures for large-volume concrete generally involve passing cooling circulating water through the concrete during the construction of large-volume concrete structures, so that the cooling medium absorbs heat during the circulation process inside the concrete. Therefore, the temperature of the cooling medium when it enters the concrete structure will be lower than when it flows out of the concrete structure, causing the concrete temperature near the cooling medium inlet to be lower than the concrete temperature near the outlet. In order to cool the concrete structure more evenly, the flow direction of the cooling medium inside the concrete is generally changed by manually operating a manual valve or an electric valve at a certain time interval. Then, due to the continuous switching of the flow direction of the cooling medium, the direction of the water flow through the water storage equipment and the temperature control equipment is constantly switched, which places high requirements on the water storage equipment and the temperature control equipment, and is not conducive to the temperature control of the cooling medium, thereby affecting the cooling effect of the large-volume concrete structure. Summary of the invention

[0004] Based on this, it is necessary to provide a balanced cooling module, temperature control system and temperature control method for large volume concrete, which can improve the balance of concrete cooling, in order to solve the above problems.

[0005] A balanced cooling module for mass concrete, the balanced cooling module comprising a first water outlet pipe group, a second water outlet pipe group, a proportional distribution valve, at least two first water temperature sensors, at least two second water temperature sensors, a temperature control module, a first control valve, a drain pipe, a second control valve and a drain pipe, the first water outlet pipe group comprising a first main water outlet pipe and at least two first water outlet branches, one end of each of the first water outlet branches is connected to the first main water outlet pipe, and the other end is respectively connected to the first pair of joints of each cooling pipe group; the second water outlet pipe group comprises a second main water outlet pipe and at least two second water outlet branches, one end of each of the second water outlet branches is connected to the second main water outlet pipe, and the other end is respectively connected to the second pair of joints of each cooling pipe group; each of the first water outlet branches is connected to the first main water outlet pipe through the proportional distribution valve; each of the first water temperature sensors is respectively used to detect the temperature of the cooling medium at the first pair of joints of the cooling pipe group degree; each of the second water temperature sensors is used to detect the temperature of the cooling medium at the second joint of the cooling pipe group; the temperature control module is used to collect temperature data of each of the first water temperature sensors and each of the second water temperature sensors, and control the proportional distribution valve to adjust the flow of each of the first water outlet branches according to the collected results; one end of the first main water outlet pipe away from the first water outlet branch and one end of the second main water outlet pipe away from the second water outlet branch are both connected to the first control valve, and the first control valve is used to control the cooling medium to flow into the first main water outlet pipe or into the second main water outlet pipe; one end of the drain pipe is connected to the first water outlet pipe group; the drain pipe is connected to the second water outlet pipe group through the second control valve, and the other end of the drain pipe is connected to the second control valve, and the second control valve is used to control the second water outlet pipe group to be connected to the drain pipe or to control the drain pipe to be connected to the drain pipe.

[0006] In one embodiment, the first control valve is a three-way control valve, and the balanced cooling module further includes a water inlet pipe, and the water inlet pipe, the first main water outlet pipe and the second main water outlet pipe are respectively connected to three interfaces of the first control valve.

[0007] In one embodiment, the balanced cooling module also includes a first temperature sensor and a second temperature sensor. The first control valve, the first temperature sensor and the second temperature sensor are all electrically connected to the temperature control module. The first temperature sensor is used to be arranged at a position of the cooling pipe group close to the first pair of joints, and the second temperature sensor is used to be arranged at a position of the cooling pipe group close to the second pair of joints. The temperature control module is used to collect temperature data of the first temperature sensor and the second temperature sensor, and control the first control valve to connect the water inlet pipe with the first main water outlet pipe or connect the water inlet pipe with the second main water outlet pipe according to the collected results.

[0008] In one of the embodiments, at least two different temperature control areas are formed in the concrete to be measured, at least one cooling pipe group is arranged in each of the temperature control areas, and a regional temperature sensor is provided in each of the temperature control areas; each of the regional temperature sensors is electrically connected to the temperature control module, and the temperature control module is used to collect the temperature of each of the regional temperature sensors, and control the proportional distribution valve to adjust the flow of each of the first water outlet branches according to the collection results.

[0009] In one embodiment, the second control valve is a three-way control valve, the second main water outlet pipe, the drain pipe and the drain pipe are respectively connected to the three interfaces of the second control valve, the second control valve is controlled to connect the drain pipe and the drain pipe or the second main water outlet pipe and the drain pipe; and the connection position of the second water outlet branch pipe and the second main water outlet pipe is located between the first control valve and the second control valve.

[0010] In one embodiment, the balanced cooling module also includes a four-way control valve and a connecting pipe, the opposite ends of the connecting pipe are respectively connected to the second control valve and an interface of the four-way control valve, the number of the second water outlet branches is two, the two second water outlet branches and the second main water outlet pipe are respectively connected to the other three interfaces of the four-way control valve, and the four-way control valve is controlled to connect the second main water outlet pipe with the second water outlet branch and connect the second water outlet branch with the connecting pipe.

[0011] In one embodiment, the balanced cooling module also includes a water pump, a water storage assembly, a temperature control device and a drainage box; the end of the water inlet pipe away from the first control valve is connected to the water storage assembly, and the water pump is arranged on the water inlet pipe, and the water pump is used to pump the cooling medium in the water storage assembly to the first control valve; the temperature control device is connected to the water storage assembly, and the temperature control device is used to control the temperature of the cooling medium pumped to the first control valve; the end of the drainage pipe away from the second control valve is connected to the drainage box.

[0012] A temperature control system for mass concrete, the temperature control system comprising the balanced cooling module as described above and at least two cooling pipe groups, the opposite ends of the cooling pipe groups being a first pair of joints and a second pair of joints, the first pair of joints and the second pair of joints being spaced apart, the other end of each of the first water outlet branches being butt-jointed with the first pair of joints of each cooling pipe group, and the other end of each of the second water outlet branches being butt-jointed with the second pair of joints of each cooling pipe group.

[0013] In one of the embodiments, the first pair of joints of each cooling pipe group are close to each other and are located in the middle of the concrete to be measured or near the middle, the second pair of joints of each cooling pipe group are located near the edge of the concrete to be measured, a first temperature sensor is provided in the middle of the concrete to be measured or near the middle, and a second temperature sensor is provided near the edge of the concrete to be measured; at least two different temperature control areas are formed in the concrete to be measured, at least one cooling pipe group is arranged in each temperature control area, and a regional temperature sensor is provided in each temperature control area.

[0014] A temperature control method for mass concrete, the temperature control method is used to control the temperature control system as described above, the temperature control method comprising:

[0015] Acquire a first temperature of an area near a first pair of joints of the cooling tube assembly and a second temperature of an area near a second pair of joints of the cooling tube assembly;

[0016] comparing the first temperature and the second temperature;

[0017] If the first temperature is greater than the second temperature, the second control valve is controlled to connect the second water outlet pipe group and the drain pipe, and the first control valve is controlled to connect the first main water outlet pipe, so that the cooling medium flows into the cooling pipe group through the first main water outlet pipe and the first water outlet branch pipe and through the first joint, and is discharged from the drain pipe through the second water outlet pipe group and the second control valve;

[0018] If the first temperature is lower than the second temperature, the second control valve is controlled to connect the drain pipe and the water pipe, and the first control valve is controlled to connect the second main water outlet pipe, so that the cooling medium passes through the second main water outlet pipe and the second water outlet branch pipe and flows into the cooling pipe group through the second joint, and is discharged from the water pipe group and the drain pipe.

[0019] In one embodiment, the temperature control method further comprises:

[0020] Obtain the temperature difference between the outlet water temperature and the inlet water temperature of different cooling tube groups;

[0021] Determine the cooling tube group whose temperature difference is greater than or equal to the preset difference and the cooling tube group whose temperature difference is less than the preset difference;

[0022] Adjust to reduce the flow rate of the cooling tube group with a small temperature difference, and increase the flow rate of the cooling tube group with a large temperature difference.

[0023] The above-mentioned balanced cooling module, temperature control system and temperature control method for mass concrete have at least the following beneficial effects compared with the prior art:

[0024] Obtain the first temperature of the area near the first pair of joints of the cooling tube group and the second temperature of the area near the second pair of joints of the cooling tube group, and compare the first temperature and the second temperature. If the first temperature is greater than the second temperature, control the second control valve to connect the second water outlet pipe group and the drain pipe, and control the first control valve to connect the first main water outlet pipe, so that the cooling medium passes through the first main water outlet pipe and the first water outlet branch and flows into the cooling tube group through the first pair of joints, and then passes through the second water outlet pipe group and the second control valve to be discharged from the drain pipe. At this time, the cooling medium water first flows into the cooling tube group from the first pair of joints through the first water outlet pipe group, and first reduces the temperature near the first pair of joints. If the first temperature is less than the second temperature, control the second control valve to connect the drain pipe and the drain pipe, and control the first control valve to connect the second main water outlet pipe, so that the cooling medium passes through the second main water outlet pipe and the second water outlet branch and flows into the cooling tube group through the second pair of joints, and then passes through the first water outlet pipe group and the drain pipe to be discharged from the drain pipe. At this time, the cooling medium first enters the cooling tube group from the second pair of joints through the second water outlet pipe group, and reduces the temperature near the second pair of joints. When switching the water flow direction, the above-mentioned balanced cooling module only needs to control the first control valve and the second control valve, and keep the water inlet pipe always inletting water and the drain pipe always draining water. It will not change the temperature control method of the circulating water by the temperature control equipment, nor the circulation method of the circulating water in the water storage equipment, nor the connection control relationship between the water storage equipment and the temperature control equipment, thereby improving the reliability of the balanced control of concrete cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of the present application are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application.

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] In addition, the drawings are not drawn to a 1:1 scale, and the relative sizes of various elements are drawn only as examples in the drawings and are not necessarily drawn according to the true scale.

[0028] Figure 1 Schematic diagram of the structure of a temperature control system for mass concrete in one embodiment.

[0029] Figure 2 for Figure 1 The temperature control system shown is a partial schematic diagram in the first usage state.

[0030] Figure 3 for Figure 1 The temperature control system shown is a partial schematic diagram in the second usage state.

[0031] Figure 4 for Figure 1 The temperature control system shown is a partial schematic diagram in the third usage state.

[0032] Figure 5 for Figure 1 A cross-sectional view of the connecting hole of the water storage component in the covered state.

[0033] Figure 6 for Figure 5 A cross-sectional view of the water storage assembly with the communicating hole opened.

[0034] Description of reference numerals:

[0035] Temperature control system 1; balanced cooling module 10; first water outlet pipe group 100; first main water outlet pipe 110; first water outlet branch pipe 120; proportional distribution valve 130; second water outlet pipe group 200; second main water outlet pipe 210; second water outlet branch pipe 220; four-way control valve 230; connecting pipe 240; first control valve 300; water inlet pipe 310; water pump 320; water discharge pipe 400; second control valve 500; drainage pipe 600; water storage assembly 700; water storage chamber 710; matching part 712; drainage hole 720; water inlet hole 730; water return hole 740; water storage box body 750; water storage chamber 752; partition 760; connecting hole 762; switch unit 770; floating plug body 772; guide part 774; drainage box 800; water return control valve 810; refrigeration control valve 820; water outlet hole 830; refrigeration mechanism 910; heater 920; cooling pipe group 20; first pair of joints 202; second pair of joints 204. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0037] See also Figure 1The temperature control system 1 for mass concrete in one embodiment of the present application can at least improve the balance of cooling the concrete and improve the structural quality of the concrete after solidification. Specifically, the temperature control system 1 includes a balanced cooling module 10 and at least two cooling pipe groups 20. The balanced cooling module 10 includes a first water outlet pipe group 100, a second water outlet pipe group 200, a first control valve 300, a drain pipe 400, a second control valve 500 and a drain pipe 600. The first water outlet pipe group 100 includes a first main water outlet pipe 110 and at least two first water outlet branches 120. One end of each first water outlet branch 120 is connected to the first main water outlet pipe 110, and the other end is connected to the first joint 202 of each cooling pipe group 20. The second water outlet pipe group 200 includes a second main water outlet pipe 210 and at least two second water outlet branches 220. One end of each second water outlet branch 220 is connected to the second main water outlet pipe 210, and the other end is connected to the second joint 204 of each cooling pipe group 20. One end of the first main water outlet pipe 110 away from the first water outlet branch 120 and one end of the second main water outlet pipe 210 away from the second water outlet branch 220 are both connected to the first control valve 300. The first control valve 300 is used to control the cooling medium to flow into the first main water outlet pipe 110 or the second main water outlet pipe 210. One end of the drain pipe 400 is connected to the first water outlet pipe group 100; the drain pipe 600 is connected to the second water outlet pipe group 200 through the second control valve 500, and the other end of the drain pipe 400 is connected to the second control valve 500. The second control valve 500 is used to control the connection between the second water outlet pipe group 200 and the drain pipe 600 or to control the connection between the drain pipe 400 and the drain pipe 600.

[0038] During construction, a first temperature of an area near the first pair of joints 202 of the cooling tube group 20 and a second temperature of an area near the second pair of joints 204 of the cooling tube group 20 are obtained, and the first temperature and the second temperature are compared. Figure 2 As shown, in the first use state, if the first temperature is greater than the second temperature, the second control valve 500 is controlled to connect the second outlet pipe group 200 and the drain pipe 600, and the first control valve 300 is controlled to connect the first main outlet pipe 110, so that the cooling medium passes through the first main outlet pipe 110 and the first outlet branch pipe 120 and flows into the cooling pipe group 20 through the first joint 202, and is discharged from the drain pipe 600 through the second outlet pipe group 200 and the second control valve 500. At this time, the cooling medium water first flows into the cooling pipe group 20 through the first outlet pipe group 100 and the first joint 202, and first reduces the temperature near the first joint 202. Figure 3As shown, in the second use state, if the first temperature is lower than the second temperature, the second control valve 500 is controlled to connect the drain pipe 400 and the drain pipe 600, and the first control valve 300 is controlled to connect the second main water outlet pipe 210, so that the cooling medium flows into the cooling pipe group 20 through the second main water outlet pipe 210 and the second water outlet branch pipe 220 and the second joint 204, and is discharged from the drain pipe 600 through the first water outlet pipe group 100 and the drain pipe 400. At this time, the cooling medium first enters the cooling pipe group 20 through the second joint 204 through the second water outlet pipe group 200, and reduces the temperature near the second joint 204. When switching the water flow direction, the above-mentioned balanced cooling module 10 only needs to control the first control valve 300 and the second control valve 500, and keep the water inlet pipe always inletting water and the drain pipe 600 always draining water. It will not change the temperature control method of the circulating water by the temperature control device, nor the circulation method of the circulating water in the water storage device, nor the connection control relationship between the water storage device and the temperature control device, thereby improving the reliability of the balanced control of concrete cooling.

[0039] See also Figure 2 and Figure 3 In one embodiment, the first control valve 300 is a three-way control valve, and the balanced cooling module 10 further includes a water inlet pipe 310, and the water inlet pipe 310, the first main water outlet pipe 110, and the second main water outlet pipe 210 are respectively connected to the three interfaces of the first control valve 300. By setting the first control valve 300 as a three-way control valve, it is convenient to selectively control the water inlet pipe 310 to be connected to the first main water outlet pipe 110 or to control the water inlet pipe 310 to be connected to the second main water outlet pipe 210, so as to adjust the two circulation states of the system, and then switch the flow direction of the water in the cooling pipe group 20. In other embodiments, the first control valve 300 can also be other valve body structures, as long as it can selectively realize the water inlet pipe 310 to be connected to the first main water outlet pipe 110 or the water inlet pipe 310 to be connected to the second main water outlet pipe 210.

[0040] In one embodiment, the balanced cooling module 10 further includes a first temperature sensor, a second temperature sensor and a temperature control module. The first control valve 300, the first temperature sensor and the second temperature sensor are all electrically connected to the temperature control module. The first temperature sensor is used to be arranged at a position of the cooling tube group 20 close to the first pair of joints 202, and the second temperature sensor is used to be arranged at a position of the cooling tube group 20 close to the second pair of joints 204. The temperature control module is used to collect temperature data of the first temperature sensor and the second temperature sensor, and control the first control valve 300 to connect the water inlet pipe 310 with the first main water outlet pipe 110 or to connect the water inlet pipe 310 with the second main water outlet pipe 210 according to the collected results. The first temperature sensor is arranged to facilitate the detection of the temperature near the first pair of joints 202, and the second temperature sensor is used to facilitate the detection of the temperature near the second pair of joints 204, so as to facilitate the control of the first control valve 300 according to the temperature detection results.

[0041] In one embodiment, the first pair of joints 202 of each cooling tube group 20 are close to each other and are located at or near the middle of the concrete to be measured, and the second pair of joints 204 of each cooling tube group 20 are located near the edge of the concrete to be measured. A first temperature sensor is provided at or near the middle of the concrete to be measured, and a second temperature sensor is provided near the edge of the concrete to be measured. Since the first pair of joints 202 of each cooling tube group 20 are close to each other and are located at the middle of the concrete, and the second pair of joints 204 of each cooling tube group 20 are located at the edge, the temperature of the middle and edge positions of the concrete can be directly detected, and it can be determined whether to switch the circulation direction of the cooling medium in the cooling tube group 20, without having to determine the temperature near the first pair of joints 202 and the second pair of joints 204 of each cooling tube group 20 one by one, thereby reducing the detection and judgment requirements and the number of temperature sensors set.

[0042] In other embodiments, the positions of the first pair of joints 202 and the second pair of joints 204 of the cooling pipe group 20 may be arranged according to the heat generation characteristics of the concrete. For example, the first pair of joints 202 may be arranged in an area with high heat generation, and the second pair of joints 204 may be arranged in an area with low heat generation. Alternatively, the first pair of joints 202 and the second pair of joints 204 may be both located at the outer edge of the concrete structure to facilitate the connection to other pipes.

[0043] In one embodiment, the balanced cooling module 10 further includes a proportional distribution valve 130, and each first water outlet branch pipe 120 is connected to the first main water outlet pipe 110 through the proportional distribution valve 130. The balanced cooling module 10 further includes at least two first water temperature sensors and at least two second water temperature sensors, each first water temperature sensor is used to detect the temperature of the cooling medium at the first pair of joints 202 of the cooling pipe group 20, and each second water temperature sensor is used to detect the temperature of the cooling medium at the second pair of joints 204 of the cooling pipe group 20; the temperature control module is used to collect the temperature data of each of the first water temperature sensors and each of the second water temperature sensors, and control the proportional distribution valve 130 to adjust the flow of each of the first water outlet branch pipes 120 according to the collected results. In this embodiment, the first water temperature sensor can be the first temperature sensor in the above embodiment, and the second water temperature sensor can be the second temperature sensor in the above embodiment. In other embodiments, the first water temperature sensor and the first temperature sensor can be two independent sensors, and the second water temperature sensor and the second temperature sensor can be two independent sensors.

[0044] The temperature difference between the outlet water temperature and the inlet water temperature of different cooling tube groups 20 can be obtained by the first water temperature sensor and the second water temperature sensor, and the cooling tube group 20 with a temperature difference greater than or equal to the preset difference and the cooling tube group 20 with a temperature difference less than the preset difference can be judged. For example, when two cooling tube groups 20 are compared, the flow rate of the cooling tube group 20 with a small temperature difference is adjusted to reduce the flow rate of the cooling tube group 20 with a large temperature difference, and the flow rate of the cooling tube group 20 with a large temperature difference is increased to reduce the temperature difference of the cooling tube group 20 with a large temperature difference, thereby improving the temperature balance in the concrete. For example, when the difference between the outlet water temperature and the inlet water temperature of the two cooling tube groups 20 is greater than 10°C, such as the temperature difference of 5°C on one side and 16°C on the other side, the temperature difference on both sides is unbalanced, and the distribution ratio of the water entering the two sides is controlled to reduce the difference in temperature difference and improve the balance of cooling the concrete.

[0045] In another embodiment, at least two different temperature control areas are formed in the concrete to be tested, at least one cooling pipe group 20 is arranged in each temperature control area, and a regional temperature sensor is arranged in each temperature control area. Each of the regional temperature sensors is electrically connected to the temperature control module, and the temperature control module is used to collect the temperature of each of the regional temperature sensors, and control the proportional distribution valve 130 to adjust the flow of each first water outlet branch pipe 120 according to the collected results. By detecting the temperature of each temperature control area, when the temperature difference between the temperature control areas is large, it proves that the temperature reduction inside the concrete is uneven, and the flow of the cooling pipe group 20 in the high temperature area can be increased to improve the heat exchange efficiency and reduce the flow of the low temperature area.

[0046] In other embodiments, each second water outlet branch pipe 220 can also be connected to the second main water outlet pipe 210 through a proportional distribution valve 130, so that after switching the flow direction of the cooling medium in the cooling pipe group 20, the flow ratio entering each second water outlet branch pipe 220 can still be adjusted.

[0047] like Figure 4 As shown, in another embodiment, in the third usage state, the balanced cooling module 10 also includes a four-way control valve 230 and a connecting pipe 240, and the opposite ends of the connecting pipe 240 are respectively connected to the second control valve 500 and an interface of the four-way control valve 230, and the number of the second water outlet branch pipes 220 is two, and the two second water outlet branch pipes 220 and the second main water outlet pipe 210 are respectively connected to the other three interfaces of the four-way control valve 230, and the four-way control valve 230 is controlled to connect the second main water outlet pipe 210 with the second water outlet branch pipe 220 and connect the second water outlet branch pipe 220 with the connecting pipe 240. Taking two cooling tube groups 20 as an example, when the regional temperature of the area where one cooling tube group 20 is located is greater than the regional temperature of the area where the other cooling tube group 20 is located, the four-way control valve 230 can be controlled to connect the second main water outlet pipe 210 and a second water outlet branch pipe 220, and the second water outlet branch pipe 220 is connected to the second joint 204 of the cooling tube group 20 in the high temperature area, and the other second water outlet branch pipe 220 is connected to the connecting pipe 240, so that the low-temperature cooling medium first passes through the high temperature area for cooling and then enters the low temperature area for cooling, so as to balance the temperature difference between different areas.

[0048] In its embodiment, the four-way control valve 230 can also be other valve body structures, as long as it can achieve connecting the second water outlet pipe group 200 with the connecting pipe 240 in the first use state, connecting the second water outlet main pipe with each second water outlet branch pipe 220 in the second use state, and connecting the second water outlet main pipe with one of the second water outlet branch pipes 220 and the other second water outlet branch pipe 220 with the connecting pipe 240 in the third use state.

[0049] In one embodiment, the second control valve 500 is a three-way control valve, and the second main water outlet pipe 210, the drain pipe 400 and the drain pipe 600 are respectively connected to the three interfaces of the second control valve 500, and the second control valve 500 is controlled to connect the drain pipe 400 and the drain pipe 600 or the second main water outlet pipe 210 and the drain pipe 600; and the connection position of the second outlet branch pipe 220 and the second main water outlet pipe 210 is located between the first control valve 300 and the second control valve 500. By setting the second control valve 500 as a three-way control valve, it is convenient to control the opening and closing of the drain pipe 400, and then it can control the drainage to be effectively discharged through the drain pipe 600. In other embodiments, the second control valve 500 can be other valve body structures, as long as it can control the selection of the drain pipe 400 and the drain pipe 600 or the suspended connecting pipe 240 and the drain pipe 600.

[0050] In the above embodiment, in the process of adjusting the cooling medium flow direction to adjust the cooling balance of concrete, the temperature difference between the inlet temperature of the cooling medium and the maximum temperature of the concrete needs to be controlled within the safe temperature difference threshold. For example, the safe temperature difference threshold can be 25°C or 20°C to avoid excessive temperature difference between the inlet temperature and the maximum temperature of the concrete, which may cause fission of the concrete.

[0051] See also Figure 1 In one embodiment, the balanced cooling module 10 further includes a water pump 320, which is disposed on the water inlet pipe 310. The water pump 320 is used to pump the cooling medium to the first control valve 300 to provide power for the circulation of the cooling medium.

[0052] Specifically, the balanced cooling module 10 further includes a water storage component 700, a temperature control device and a drainage box 800; one end of the water inlet pipe 310 away from the first control valve 300 is connected to the water storage component 700, and the water pump 320 is used to pump the cooling medium in the water storage component 700 to the first control valve 300. The temperature control device is connected to the water storage component 700, and the temperature control device is used to control the temperature of the cooling medium pumped to the first control valve 300; one end of the drainage pipe 600 away from the second control valve 500 is connected to the drainage box 800.

[0053] Specifically, the balanced cooling module 10 further includes a return water control valve 810 and a refrigeration control valve 820, the temperature control device includes a refrigeration mechanism 910, a water storage chamber 710 is formed in the water storage assembly 700, a drainage hole 720 and a water inlet hole 730 communicating with the water storage chamber 710 are provided on the water storage assembly 700, and the water inlet pipe 310 is connected at the drainage hole 720. A return water hole 740 communicating with the water storage chamber 710 is also provided on the water storage assembly 700. The return water control valve 810 is arranged at the return water hole 740. A water outlet hole 830 is also provided on the drainage box 800, and a circulation pipe group is connected at the water outlet hole 830, and a first circulation channel and a second circulation channel are formed in the circulation pipe group, the first circulation channel connects the water outlet hole 830 and the return water hole 740; the second circulation channel is connected to the refrigeration mechanism 910, and the refrigeration outlet of the refrigeration mechanism 910 is connected to the return water hole 740; the refrigeration control valve 820 is used to control the on-off of the second circulation channel.

[0054] When in use, the current drainage temperature of the water in the drainage box 800 is obtained. If the current drainage temperature is less than or equal to the current temperature of normal temperature water, the refrigeration control valve 820 is controlled to open the second circulation channel so that the water in the drainage box 800 enters the water storage chamber 710 of the water storage assembly 700 through the refrigeration mechanism 910. If the current drainage temperature is greater than the current temperature of normal temperature water, the refrigeration control valve 820 is controlled to close the second circulation channel, and the normal temperature water is controlled to enter the water storage chamber 710 through the refrigeration mechanism 910. In the early stage of concrete pouring, the temperature inside the concrete is not very high. At this time, the refrigeration mechanism 910 can be used to quickly cool the cooling medium to achieve the purpose of rapid cooling. When the drainage temperature is lower than the normal temperature water, the water in the drainage box 800 can be recycled to reduce the consumption of refrigeration energy of the refrigeration mechanism 910 or improve the refrigeration effect.

[0055] Continue to obtain the current concrete temperature of the concrete and the current inlet water temperature of the water storage chamber 710, and determine whether the temperature difference between the current concrete temperature and the current inlet water temperature is greater than the safety temperature difference threshold; if so, control the refrigeration equipment to stop running, and control the water in the normal temperature and / or the water in the drainage box 800 to enter the water storage chamber 710, so that the temperature difference between the current concrete temperature and the current inlet water temperature is less than or equal to the safety temperature difference threshold. As the pouring and construction continue, the temperature of the concrete gradually increases, and the temperature difference between the current concrete temperature and the current inlet water temperature is greater than the safety temperature difference threshold. There is no need to refrigerate the circulating cooling medium, and by controlling part or all of the water in the drainage box 800 to enter the water storage chamber 710, it is convenient to recover the heat of the discharged cooling medium and maintain the temperature difference between the current inlet water temperature and the current concrete temperature. Through the arrangement and connection of the various components and pipelines in the above-mentioned balanced cooling module 10, it is convenient to reduce the energy consumption of the refrigeration mechanism 910, improve the efficiency of energy recovery and utilization, and improve the efficiency of temperature difference control.

[0056] In this embodiment, the temperature control device further includes a heater 920, which is disposed in the water storage chamber 710, and the heater 920 is used to heat the water in the water storage chamber 710. When pouring concrete in the middle and late stages, the temperature inside the concrete is relatively high, and the water entering the concrete needs to be heated to control the temperature difference. After turning on the heater 920, all the water in the drainage box 800 can be controlled to enter the water storage chamber 710, thereby reducing or even avoiding the addition of new water resources, and at the same time, the heat of the drained water can be effectively recovered to reduce energy consumption.

[0057] In one embodiment, the balanced cooling module 10 further includes a temperature detector, which is used to detect the temperature of the cooling medium in the drainage box 800, and the temperature control module is used to control the return water control valve 810 and the refrigeration control valve 820 according to the monitoring result of the temperature detector. By detecting the temperature in the drainage box 800 through the temperature detector, it is possible to easily realize and decide whether to recycle the water in the drainage box 800. For example, when the temperature in the drainage box 800 is lower than the normal temperature, the water in the drainage box 800 is controlled to enter the refrigeration mechanism 910. When the refrigeration mechanism 910 is turned off, the proportion of the water in the drainage box 800 entering the water storage chamber 710 is adjusted according to the water temperature in the drainage box 800 and the water temperature of the normal temperature water, so as to adjust the appropriate water outlet temperature. When the required water inlet temperature entering the cooling pipe group 20 is higher than the water temperature in the drainage box 800, the water in the drainage box 800 can be controlled to enter the water storage chamber 710, and the heater 920 is started for heating. Specifically, a flow meter is provided on the pipe connecting the drainage box 800 and the water storage chamber 710 , and a flow meter is provided at the water inlet hole 730 of the water storage assembly 700 .

[0058] In this embodiment, the cooling tube group 20 is provided with multiple layers, and a balanced cooling module 10 can be provided for each layer of the cooling tube group 20, or only one balanced cooling module 10 can be provided, or a balanced cooling module 10 can be provided for two or more layers.

[0059] See also Figure 1 In one embodiment, the temperature control system 1 further includes a first water distributor and a second water distributor, the number of cooling tube groups 20 is multiple, the multiple cooling tube groups 20 are divided into at least two layers and laid in the concrete, the cooling tube groups 20 of different layers are arranged with an upper and lower interval, the first pair of joints 202 of the cooling tube groups 20 of different layers are connected to the water inlet pipe 310 through the first water distributor, the second pair of joints 204 of the cooling tube groups 20 of different layers are connected to the drain pipe 600 through the second water distributor, and a water inlet control valve is arranged on each layer of the cooling tube groups 20. Since the concrete casting has a certain thickness, the cooling effect of the concrete can be improved by arranging at least two layers of cooling tube groups 20.

[0060] See also Figure 1 , Figure 5 and Figure 6In one embodiment, the water storage assembly 700 includes a water storage tank 750, a partition 760 and a switch unit 770. The water storage tank 750 is hollow. The partition 760 is disposed in the water storage tank 750 and divides the space in the water storage tank 750 to form a water storage chamber 710 and a water storage chamber 752. The water inlet 730 is connected to the water storage chamber 752. The partition 760 is provided with a connecting hole 762. The switch unit 770 is openably covered on the connecting hole 762, and the size of the connecting hole 762 is larger than the size of the water inlet 730. Since the cooling tube group 20 is provided with at least two layers, when another layer of the cooling tube group 20 is started, the water supply flow rate suddenly increases, and the water storage capacity in the water storage chamber 710 is limited, which will cause the water in the water storage chamber 710 to decrease rapidly. Therefore, some water can be stored in the water storage chamber 752 in advance. Since the size of the connecting hole 762 is larger than the size of the water inlet hole 730, when the water in the water storage chamber 710 decreases rapidly, the water in the water storage chamber 752 can be quickly replenished into the water storage chamber 710 through the connecting hole 762 to meet the sudden increase in flow requirement.

[0061] In this embodiment, the water storage chamber 752 is located above the water storage chamber 710. When the water in the water storage chamber 710 decreases, the water in the water storage chamber 752 can be automatically replenished into the water storage chamber 710 through the connecting hole 762 under the action of its own weight. Specifically, the space of the water storage chamber 752 is smaller than the space of the water storage chamber 710, and the depth of the water storage chamber 752 is smaller than the depth of the water storage chamber 710. Under the premise of meeting the requirement of rapid water replenishment, the volume of the water storage box 750 is prevented from being too large.

[0062] In one embodiment, the switch unit 770 includes a floating plug 772 and a guide portion 774. The floating plug 772 is located in the water storage chamber 710. The guide portion 774 is connected to the floating plug 772. A matching portion 712 is provided in the water storage chamber 710. The guide portion 774 and the matching portion 712 guide and match along the direction from the water storage chamber 710 to the water storage chamber 752. The floating plug 772 can float in the water storage chamber 710 and can be plugged into the connecting hole 762. When the water in the water storage chamber 710 is relatively full, under the guidance and cooperation of the guide portion 774 and the matching portion 712 and the buoyancy of the floating plug 772, the floating plug 772 floats up and can be plugged into the connecting hole 762, thereby separating the water storage chamber 752 from the water storage chamber 710. When the water level in the water storage chamber 710 drops, the buoyancy of the floating plug 772 decreases, and the floating plug 772 disengages from the connecting hole 762 to connect the water storage chamber 752 with the water storage chamber 710, so that the water in the water storage chamber 752 can be quickly replenished into the water storage chamber 710.

[0063] See also Figures 4 to 6In one embodiment, the upper surface of the floating plug body 772 is a spherical crown surface, and the upper surface of the floating plug body 772 can abut against the inner wall of the connecting hole 762. Specifically, the shape of the inner wall of the connecting hole 762 is adapted to the upper surface of the floating plug body 772, and the spherical crown surface can make the floating plug body 772 abut against the inner wall of the connecting hole 762 more reliably under the action of buoyancy.

[0064] In one embodiment, the number of the guide portions 774 is at least two, the number of the matching portions 712 is consistent with the number of the guide portions 774, each guide portion 774 corresponds to a matching portion 712 for guiding and matching, and each matching portion 712 is arranged at circumferential intervals along the inner wall of the water storage chamber 710.

[0065] See also Figures 1 to 3 In one embodiment, the present application further discloses a temperature control method for mass concrete, the temperature control method being used to control the temperature control system 1 in any of the above embodiments. Specifically, the temperature control method comprises:

[0066] Acquire a first temperature of an area near the first pair of joints 202 of the cooling tube assembly 20 and a second temperature of an area near the second pair of joints 204 of the cooling tube assembly 20;

[0067] comparing the first temperature and the second temperature;

[0068] If the first temperature is greater than the second temperature, the second control valve 500 is controlled to connect the second water outlet pipe group 200 and the drain pipe 600, and the first control valve 300 is controlled to connect the first main water outlet pipe 110, so that the cooling medium flows into the cooling pipe group 20 through the first main water outlet pipe 110 and the first water outlet branch pipe 120 and the first joint 202, and is discharged from the drain pipe 600 through the second water outlet pipe group 200 and the second control valve 500;

[0069] If the first temperature is lower than the second temperature, the second control valve 500 is controlled to connect the drain pipe 400 and the drainage pipe 600, and the first control valve 300 is controlled to connect the second main water outlet pipe 210, so that the cooling medium passes through the second main water outlet pipe 210 and the second water outlet branch pipe 220 and flows into the cooling pipe group 20 through the second joint 204, and is discharged from the drainage pipe 600 through the first water outlet pipe group 100 and the drain pipe 400.

[0070] In one embodiment, the temperature control method further includes:

[0071] Obtaining the temperature difference between the outlet water temperature and the inlet water temperature of different cooling tube groups 20;

[0072] Determine the cooling tube group 20 whose temperature difference is greater than or equal to the preset difference and the cooling tube group 20 whose temperature difference is less than the preset difference;

[0073] The flow rate of the cooling tube group 20 with a small temperature difference is adjusted to decrease, and the flow rate of the cooling tube group 20 with a large temperature difference is increased.

[0074] In one embodiment, the temperature control method further includes:

[0075] Obtain the current drainage temperature of the water in the drainage tank 800;

[0076] If the current drainage temperature is less than or equal to the current temperature of the normal temperature water, the refrigeration control valve 820 is controlled to open the second circulation channel, so that the water in the drainage box 800 passes through the refrigeration equipment 400 and enters the water storage chamber 710 of the water storage assembly 700, and the water pump 320 is controlled to pump the water in the water storage chamber 710 to the cooling pipe group 20;

[0077] If the current drainage temperature is greater than the current temperature of the normal temperature water, the refrigeration control valve 820 is controlled to close the second circulation channel, the normal temperature water is controlled to pass through the refrigeration equipment 400 into the water storage chamber 710 of the water storage assembly 700, and the water pump 320 is controlled to pump the water in the water storage chamber 710 to the cooling pipe group 20;

[0078] Obtaining the current concrete temperature of the concrete and the current water inlet temperature of the water storage chamber 710;

[0079] Determine whether the temperature difference between the current concrete temperature and the current water inlet temperature is greater than a safe temperature difference threshold;

[0080] If so, the refrigeration equipment 400 is controlled to stop running, and the normal temperature water and / or the water in the drainage box 800 are controlled to enter the water storage chamber 710, so that the temperature difference between the current concrete temperature and the current water inlet temperature is less than or equal to the safety temperature difference threshold.

[0081] In one embodiment, the temperature control cycle control method further includes:

[0082] Obtain the current water inlet temperature range based on the current concrete temperature and the safe temperature difference threshold;

[0083] If the current drainage temperature is within or lower than the current water inlet temperature range, the water in the drainage box 800 is controlled to enter the water storage chamber 710 .

[0084] The above-mentioned balanced cooling module 10, temperature control system 1 and temperature control method for large-volume concrete can realize temperature monitoring of large-volume concrete, ensure timely and effective adjustment of on-site temperature control measures, effectively prevent the generation of temperature cracks, thereby improving the durability of concrete and ensuring the quality of large-volume concrete construction. The balanced cooling module 10 is used to perform intelligent automatic control and management of the flow of the cooling pipe group 20, which not only realizes the automatic control of the cooling water temperature, but also saves a large amount of fresh water resources, realizes temperature monitoring of large-volume concrete, and effectively prevents the generation of temperature cracks through dynamic adjustment of temperature control measures during the construction of large-volume concrete, thereby improving the durability of concrete.

[0085] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0086] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0087] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0088] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0089] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. A temperature control system for mass concrete, characterized in that: The temperature control system includes a balanced cooling module and two cooling tube groups, the two opposite ends of the cooling tube group are respectively a first pair of joints and a second pair of joints, the first pair of joints and the second pair of joints are spaced apart, and the balanced cooling module includes: A first water outlet pipe group, comprising a first main water outlet pipe and two first water outlet branch pipes; A proportional distribution valve, one end of each of the two first water outlet branches is connected to the first main water outlet pipe through the proportional distribution valve, and the other end is connected to the first pair of joints of the two cooling pipe groups respectively; A second water outlet pipe group, including a second main water outlet pipe and two second water outlet branch pipes; A four-way control valve, one end of the two second water outlet branches and the second main water outlet pipe are respectively connected to the three interfaces of the four-way control valve, and the other ends of the two second water outlet branches are respectively connected to the second pairs of joints of the two cooling pipe groups; At least two first water temperature sensors, respectively used to detect the temperature of the cooling medium at the first pair of joints; At least two second water temperature sensors, respectively used to detect the temperature of the cooling medium at the second pair of joints; A first temperature sensor is disposed at a position of the cooling tube assembly close to the first pair of joints and is used to collect a first temperature; A second temperature sensor is disposed at a position of the cooling tube assembly close to the second pair of joints and is used to collect a second temperature; A temperature control module, used to collect temperature data from each first water temperature sensor and each second water temperature sensor, and control the proportional distribution valve to adjust the flow of each first water outlet branch pipe according to the collected results; A first control valve, a water inlet pipe, a second control valve, a connecting pipe, a drain pipe and a water discharge pipe, the first control valve and the second control valve are both three-way control valves, the water inlet pipe, one end of the first main water outlet pipe away from the first water outlet branch pipe and one end of the second main water outlet pipe away from the second water outlet branch pipe are respectively connected to the three interfaces of the first control valve; the connecting pipe, the drain pipe and the water discharge pipe are respectively connected to the three interfaces of the second control valve, the other end of the connecting pipe is connected to the other interface of the four-way control valve, and the other end of the drain pipe is connected to the first main water outlet pipe; two different temperature control areas are formed in the concrete to be measured, a cooling pipe group is arranged in each temperature control area, and a regional temperature sensor is provided in each temperature control area; the first control valve, the first temperature sensor, the second temperature sensor and the regional temperature sensor are all electrically connected to the temperature control module, and the temperature control module is used to obtain the first temperature of the first temperature sensor, the second temperature of the second temperature sensor and the temperature data of the regional temperature sensor.

2. The temperature control system according to claim 1, characterized in that: The balanced cooling module also includes a water pump, a water storage component, a temperature control device and a drainage box; one end of the water inlet pipe away from the first control valve is connected to the water storage component, and the water pump is arranged on the water inlet pipe. The water pump is used to pump the cooling medium in the water storage component to the first control valve; the temperature control device is connected to the water storage component, and the temperature control device is used to control the temperature of the cooling medium pumped to the first control valve; the end of the drainage pipe away from the second control valve is connected to the drainage box.

3. The temperature control system according to claim 1 or 2, characterized in that: The temperature control module is used to collect the temperature of each of the regional temperature sensors, and control the proportional distribution valve to adjust the flow of each of the first water outlet branches according to the collected results.

4. The temperature control system according to claim 1 or 2, characterized in that: The first pair of joints of each cooling pipe group are close to each other and are located in the middle of the concrete to be measured or near the middle, and the second pair of joints of each cooling pipe group are located near the edge of the concrete to be measured; two different temperature control areas are formed in the concrete to be measured, and a cooling pipe group is arranged in each temperature control area, and a regional temperature sensor is provided in each temperature control area.

5. A temperature control method for mass concrete, characterized in that: The temperature control method is used to control the temperature control system according to any one of claims 1 to 4, and the temperature control method comprises: Acquire a first temperature of an area near a first pair of joints of the cooling tube assembly and a second temperature of an area near a second pair of joints of the cooling tube assembly; comparing the first temperature and the second temperature; If the first temperature is greater than the second temperature, the second control valve is controlled to connect the connecting pipe with the drain pipe, and the first control valve is controlled to connect the water inlet pipe with the first main water outlet pipe, and the four-way control valve is controlled to connect the two second water outlet branches with the connecting pipe, so that the cooling medium passes through the first control valve, the first main water outlet pipe and the first water outlet branch pipe, and flows into the cooling pipe group through the first joint, and passes through the second water outlet branch pipe, and is discharged from the drain pipe by the four-way control valve through the connecting pipe and the second control valve; If the first temperature is lower than the second temperature, the second control valve is controlled to connect the drain pipe and the water discharge pipe, and the first control valve is controlled to connect the water inlet pipe and the second main water outlet pipe, and the four-way control valve is controlled to connect the second main water outlet pipe and the two second water outlet branches, so that the cooling medium passes through the first control valve and the second main water outlet pipe to the four-way control valve, and flows from the second water outlet branch pipe through the second joint into the cooling pipe group, and passes through the first water outlet pipe group and the drain pipe and is discharged from the second control valve through the water discharge pipe; If the regional temperature of the area where one of the cooling tube groups is located is higher than the regional temperature of the area where the other cooling tube group is located, the four-way control valve is controlled to connect the second main water outlet pipe and a second water outlet branch pipe, the second water outlet branch pipe is connected to the second pair of joints of the cooling tube group in the area with high temperature, and the other second water outlet branch pipe is connected to the connecting pipe through the four-way control valve, so that the low-temperature cooling medium first passes through the area with high temperature for cooling and then enters the area with low temperature for cooling.

6. The temperature control method for mass concrete according to claim 5, characterized in that: The temperature control method further comprises: Obtain the temperature difference between the outlet water temperature and the inlet water temperature of different cooling tube groups; Two cooling tube groups were compared; Adjust to reduce the flow rate of the cooling tube group with a small temperature difference, and increase the flow rate of the cooling tube group with a large temperature difference.

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