Mass concrete temperature control device

Abstract

The utility model relates to the technical field of temperature control devices, and discloses a mass concrete temperature control device which comprises a refrigeration water storage tank and a cooling pipe, a water pump water outlet pipe and a water return pipe are installed on the refrigeration water storage tank, the two ends of the cooling pipe are communicated with an adjusting pipe, and the adjusting pipe is communicated with a water inlet pipe communicated with the water pump water outlet pipe. The adjusting pipes are installed at the two ends of the cooling pipe, when water is output from the refrigeration water storage tank, the water is adjusted to enter the cooling pipe from the adjusting pipes or directly conveyed back to the refrigeration water storage tank from the adjusting pipes through the adjusting valves, and when water in the cooling pipe needs to be discharged, the water can be adjusted through the adjusting valves, so that cold water does not pass through the cooling pipe; cold water passes through the venturi tube, the venturi tube compresses and releases water, negative pressure is formed in the cooling tube, and therefore the water in the cooling tube is pumped into the adjusting tube and then discharged into the refrigeration water storage tank, the problem that the water in the cooling tube cannot be discharged is avoided, the structure is simple, driving equipment does not need to be additionally arranged, and the manufacturing cost is low.

Description

Technical Field

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

[0002] After the concrete construction is completed, due to the different heat dissipation speeds inside and outside the concrete, the internal and external thermal expansion and contraction processes will generate tensile stress on the concrete surface. When the temperature difference is large enough and the tensile stress on the concrete surface exceeds the ultimate tensile strength of the concrete at that time, harmful cracks will appear on the concrete surface, and sometimes even penetrate the cracks. Therefore, a volume concrete temperature control device is needed to control the temperature inside and outside the concrete. The large-volume concrete temperature control device currently used usually uses a pre-buried steel pipe in the concrete, and then supplies water through a water tank, and uses a water pump to circulate water in the water pipe to cool the inside of the concrete.

[0003] Prior art, such as the patent with publication number CN216387877U, discloses a temperature control device for the construction process of large-volume concrete, including large-volume concrete, an environmental cooling device and a temperature monitoring device, wherein the environmental cooling device is connected to the temperature monitoring device, and the environmental cooling device includes a refrigeration device, a low-temperature resistant conduit, thermal insulation cotton, a cooling pipe and a cable tie, wherein the cooling pipe is coiled inside the large-volume concrete, and both ends of the cooling pipe longitudinally penetrate the outer wall of the large-volume concrete, one end of the cooling pipe is connected to the liquid outlet of the refrigeration device through the low-temperature resistant conduit, and the other end of the cooling pipe is connected to the liquid inlet of the refrigeration device, and the thermal insulation cotton is coated on the outer wall of the low-temperature resistant conduit. The utility model realizes cooling of the interior of the large-volume concrete through the circulation of coolant between the cooling pipe built into the large-volume concrete and the external refrigeration device, and can effectively solve the problem of the development of temperature cracks in the large-volume concrete.

[0004] The existing technology still has shortcomings:

[0005] The refrigeration equipment in the above-mentioned prior art pumps cold water into a cooling pipe pre-buried in concrete, and then circulates it from the cooling pipe to the refrigeration equipment for cooling. However, in actual use, there is a lack of a structure for extracting water from the cooling pipe. If the water in the cooling pipe is retained, it is easy to freeze and expand in cold weather, causing damage to the concrete. The cost of providing a separate water pump is relatively high. Therefore, a large-volume concrete temperature control device is proposed. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a large-volume concrete temperature control device, which can discharge water in a water pipe in the temperature control device to ensure the strength of the concrete.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large-volume concrete temperature control device, including a refrigerated water storage tank and a cooling pipe, a water pump outlet pipe and a water return pipe are installed on the refrigerated water storage tank, both ends of the cooling pipe are connected with regulating pipes, the regulating pipe is connected with a water inlet pipe connected with the water pump outlet pipe, one end of the regulating pipe is connected with the return pipe, a temperature sensor is installed on the cooling pipe, a venturi tube is installed in the regulating pipe, a water inlet connected with the cooling pipe is opened on the venturi tube, and a regulating valve for regulating the direction of water flow after entering from the cooling pipe is installed in the regulating pipe.

[0008] Preferably, the end of the regulating pipe away from the return pipe is an open structure, and the regulating valve includes a connecting sleeve, which is installed on the outer wall of the open end of the regulating pipe. The middle part of the connecting sleeve is rotatably connected to a threaded rod, one end of the threaded rod is fixedly connected to a turning handle, and the other end of the threaded rod is threadedly connected to a valve column. One side of the connecting sleeve is fixedly connected to a limiting rod, and the valve column is slidably connected to the outer wall of the limiting rod. The outer wall of the valve column is provided with a first water hole corresponding to the water inlet pipe and a second water hole connected to the first water hole, and the second water hole is distributed corresponding to the Venturi tube.

[0009] Preferably, the end diameter of the threaded rod is smaller than the inner diameter of the second water hole, and the distance between the water inlet pipe and the connecting sleeve is smaller than the distance between the water inlet pipe and the Venturi tube.

[0010] Preferably, the regulating valve further comprises a filter mesh tube, one end of which is fixedly connected to the inner wall of the connecting sleeve, and the filter mesh tube filters the connecting port at one end of the regulating pipe and the cooling pipe.

[0011] Preferably, the connecting sleeve is threadedly connected to the outer wall of the adjusting tube, and a sealing ring is installed at the connection between the connecting sleeve and the adjusting tube.

[0012] Preferably, the regulating pipe is connected to the cooling pipe through a flange and bolts, and the water inlet pipe and the regulating pipe are respectively connected to the water outlet pipe and the return pipe of the water pump through flanges.

[0013] Preferably, the minimum inner diameter of the water inlet is equal to the minimum inner diameter of the venturi tube.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The utility model installs regulating pipes at both ends of the cooling pipe. When the output water of the refrigeration water storage tank is adjusted by the regulating valve, the water enters the cooling pipe from the regulating pipe or is directly transported back to the refrigeration water storage tank from the regulating pipe. When the water in the cooling pipe needs to be discharged, the regulating valve can be used to adjust so that the cold water does not pass through the cooling pipe. The cold water passes through the venturi tube, and the venturi tube compresses and releases the water to form a negative pressure in the cooling pipe, so that the water in the cooling pipe is pumped into the regulating pipe and then discharged into the refrigeration water storage tank, thereby avoiding the problem of being unable to discharge the water in the cooling pipe. The utility model has a simple structure, does not need to set up a separate driving device, and has a low manufacturing cost.

[0016] 2. The utility model installs a filter screen at the connection point between the cooling pipe and one end of the regulating pipe, and the filter screen can filter impurities in the water to avoid clogging of the Venturi tube.

[0017] 3. In the utility model, after the cold water passes through the cold water pipe, it is discharged into the Venturi tube in the regulating pipe. The Venturi tube can compress the water and spray it out. The sprayed water is fully released, thereby improving the heat dissipation of the cooling water.

[0018] Other features and advantages of the utility model will be described in the following description, and partly become apparent from the description, or understood by implementing the utility model. The purpose and other advantages of the utility model can be realized and obtained by the structures indicated in the description, claims and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross-sectional structure of the cooling pipe and the regulating pipe of the utility model;

[0021] Figure 3 for Figure 2 A partial enlarged view of the middle A;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the filter mesh tube and valve column of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the refrigeration water storage tank of the utility model.

[0024] In the figure: 1. refrigeration water storage tank; 2. cooling pipe; 3. regulating pipe; 4. water inlet pipe; 5. regulating valve; 51. connecting sleeve; 52. threaded rod; 53. valve column; 54. first water hole; 55. second water hole; 56. turning handle; 57. limit rod; 58. filter mesh tube; 6. temperature sensor; 7. water inlet; 8. venturi tube; 9. return pipe; 10. water pump outlet pipe. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this technical field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-5The mass concrete temperature control device of this embodiment includes a refrigeration water storage tank 1 and a cooling pipe 2. A water pump outlet pipe 10 and a water return pipe 9 are installed on the refrigeration water storage tank 1. Both ends of the cooling pipe 2 are connected with a regulating pipe 3. The regulating pipe 3 is connected with a water inlet pipe 4 connected with the water pump outlet pipe 10. One end of the regulating pipe 3 is connected with the water return pipe 9. A temperature sensor 6 is installed on the cooling pipe 2. A venturi tube 8 is installed in the regulating pipe 3. The venturi tube 8 is provided with a water inlet 7 connected with the cooling pipe 2. A regulating valve 5 for regulating the direction of water flow after entering the cooling pipe 2 is installed in the regulating pipe 3.

[0027] like Figure 1 , 2 As shown in Figures 3 and 5, the structure of the temperature control device in the present invention is similar to that of the existing temperature control device, such as the temperature control device for the construction process of large-volume concrete disclosed in the patent with publication number CN216387877U. The main improvement of the present invention is that the water in the water pipe in the temperature control device can be discharged to ensure the strength of the concrete. When the temperature of large-volume concrete needs to be controlled, the cooling pipe 2 is pre-buried in the concrete, and the regulating pipe 3 is connected to both ends of the cooling pipe 2. At this time, the refrigeration water storage tank 1 is started to work, and the water in the refrigeration water storage tank 1 is discharged into the water inlet pipe 4 along the water pump outlet pipe 10 through the internal water pump, and the water enters the regulating pipe 3 along the water inlet pipe 4. The regulating valve 5 is used to limit the water so that the water will not move laterally along the regulating pipe 3, but directly enter the cooling pipe 2 to inlet the concrete. The water in the cooling pipe 2 is cooled, and the water in the cooling pipe 2 is discharged into the venturi tube 8 along the other end thereof in conjunction with the water inlet 7. The venturi tube 8 compresses the water and then releases it, thereby improving the heat dissipation of the water. The released water then enters the refrigeration water storage tank 1 along the regulating pipe 3 and the water inlet 7 for cooling and circulation. When the concrete temperature does not need to be controlled and the water in the cooling pipe 2 needs to be discharged, the regulating valve 5 is controlled to make the water entering the regulating pipe 3 move laterally along the regulating pipe 3, thereby not passing through the cooling pipe 2, and entering the venturi tube 8. The venturi tube 8 compresses and releases the water, and utilizes the venturi principle to realize negative pressure in the cooling pipe 2, thereby pumping the water in the cooling pipe 2 into the regulating pipe 3 and then discharging it into the refrigeration water storage tank 1 for storage, thereby avoiding the problem of being unable to discharge the water in the cooling pipe 2. The structure is simple, no additional driving equipment is required, and the manufacturing cost is low.

[0028] The temperature detection and control layer is used to realize temperature collection and circulating water regulation. The temperature sensor 6 collects temperature information and transmits the data to the on-site monitoring and transmission end; the electronically controlled valves, liquid level gauges, etc. regulate the circulating water; the on-site monitoring and transmission layer receives the signal from the temperature sensor 6 and converts it into temperature data, completing the communication configuration, control execution and management of the entire intelligent temperature control equipment; the Internet transmission layer uses the network built by the Internet operator to collect and upload the on-site monitoring data to the cloud for storage. In addition, the remote monitoring layer issues instructions that will be transmitted to the on-site monitoring equipment through the Internet transmission layer for execution; the remote monitoring layer can display various temperature data and analyze the data.

[0029] An intelligent temperature control system for large-volume concrete based on BIM technology is adopted. Through the four-layer structure of temperature detection and control layer, on-site monitoring and transmission layer, Internet transmission layer, and remote monitoring layer, the management needs of three-dimensional visualization, dynamic data and intelligent control of large-volume concrete temperature are realized, which effectively controls the internal temperature rise and temperature stress of large-volume concrete, reduces or avoids the occurrence of temperature cracks, and improves the quality and safety of large-volume concrete projects.

[0030] like Figure 1 , 2As shown in Figures 4 and 5, the end of the regulating pipe 3 away from the return pipe 9 is an open structure, and the regulating valve 5 includes a connecting sleeve 51, which is installed on the outer wall of the open end of the regulating pipe 3. The middle part of the connecting sleeve 51 is rotatably connected with a threaded rod 52, one end of the threaded rod 52 is fixedly connected with a turning handle 56, and the other end of the threaded rod 52 is threadedly connected with a valve column 53. One side of the connecting sleeve 51 is fixedly connected with a limiting rod 57, and the valve column 53 is slidably connected with the outer wall of the limiting rod 57. The outer wall of the valve column 53 is provided with a first water hole 54 corresponding to the water inlet pipe 4 and a second water hole 55 connected with the first water hole 54, and the second water hole 55 is distributed corresponding to the venturi tube 8; when it is necessary to make cold water pass through the cooling pipe 2, the turning handle 56 is turned, and the turning handle 56 drives the threaded rod 52 to rotate, and the threaded rod 52 drives the valve column 53 to move in the regulating pipe 3, and the valve column 53 slides with the outer wall of the limiting rod 57, and the limiting rod 57 limits the valve column 53 so that the valve column 53 does not rotate until the valve The column 53 does not block the water inlet pipe 4. At this time, the valve column 53 blocks the lateral movement of the cold water in the regulating pipe 3, so that the cold water entering the water inlet pipe 4 enters the cooling pipe 2 along the regulating pipe 3; when the cold water in the cooling pipe 2 needs to be extracted, the valve column 53 is moved back to make the first water hole 54 on the valve column 53 turn to be connected with the water inlet pipe 4, so that the valve column 53 blocks the water flow from the regulating pipe 3 to the cooling pipe 2, and the cold water flows horizontally in the regulating pipe 3 through the first water hole 54 and the second water hole 55. The cold water passes through the Venturi tube 8, and the Venturi tube 8 compresses the cold water and releases it into the regulating pipe 3. Based on the Venturi principle, the cooling pipe 2 connected with the inside of the Venturi tube 8 through the water inlet 7 generates a negative pressure, so that the water in the cooling pipe 2 enters the Venturi tube 8 through the water inlet 7 and is transported along the regulating pipe 3 to the refrigeration water storage tank 1 for storage. A single valve column 53 is used to realize two-way water supply of cold water. The structure is simple, easy to use and the manufacturing cost is low.

[0031] like Figure 4 As shown, the end face diameter of the threaded rod 52 is smaller than the inner diameter of the second water hole 55, and the distance between the water inlet pipe 4 and the connecting sleeve 51 is smaller than the distance between the water inlet pipe 4 and the venturi tube 8; the threaded rod 52 occupies a small space when water flows through the second water hole 55, thereby ensuring the smooth flow of cold water; the water inlet pipe 4 is close to the connecting sleeve 51, and the length of the threaded rod 52 does not need to be too long, thereby improving the stability of use.

[0032] like Figure 2 , 4 As shown, the regulating valve 5 also includes a filter mesh tube 58, one end of which is fixedly connected to the inner wall of the connecting sleeve 51, and the filter mesh tube 58 filters the connecting port between the regulating pipe 3 and one end of the cooling pipe 2; the water entering the cooling pipe 2 from the regulating pipe 3 is first filtered through the filter mesh tube 58 to improve the water quality, avoid clogging the Venturi pipe 8, and improve practicality.

[0033] like Figure 4As shown, the connecting sleeve 51 is threadedly connected to the outer wall of the regulating tube 3, and a sealing ring is installed at the connection between the connecting sleeve 51 and the regulating tube 3; the connecting sleeve 51 and the regulating tube 3 are detachable, so that the impurities filtered out by the filter mesh tube 58 can be pulled out from the regulating tube 3, which is convenient for use.

[0034] like Figure 1-5 As shown, the regulating pipe 3 is connected to the cooling pipe 2 through a flange with bolts, and the water inlet pipe 4 and the regulating pipe 3 are respectively connected to the water pump outlet pipe 10 and the return pipe 9 through flanges; using flanges to connect multiple pipes is easy to assemble, convenient for temperature control of concrete, and improves practicality.

[0035] like Figure 3 As shown, the minimum inner diameter of the water inlet 7 is equal to the minimum inner diameter of the venturi tube 8; the cold water entering the venturi tube 8 from the cooling pipe 2 through the water inlet 7 will not be compressed or released again, ensuring the stability of the water flow and ensuring the stable compression and release of the water flow by the venturi tube 8.

[0036] Implementation steps in this embodiment: when it is necessary to control the temperature of a large volume of concrete, the cooling pipe 2 is pre-buried in the concrete, the regulating pipe 3 is connected to both ends of the cooling pipe 2, the turning handle 56 is turned, the turning handle 56 drives the threaded rod 52 to rotate, the threaded rod 52 drives the valve column 53 to move in the regulating pipe 3, the valve column 53 slides with the outer wall of the limiting rod 57, the limiting rod 57 limits the valve column 53, so that the valve column 53 does not rotate, until the valve column 53 does not block the water inlet pipe 4, at this time the valve column 53 in the regulating pipe 3 blocks the lateral movement of the cold water, so that the cold water entering the water inlet pipe 4 enters the cooling pipe 2 along the regulating pipe 3, at this time the refrigeration water storage tank 1 is started to work, the water in the refrigeration water storage tank 1 is discharged to the water inlet pipe 4 along the water pump outlet pipe 10 through the internal water pump, the water enters the regulating pipe 3 along the water inlet pipe 4, the water enters the regulating pipe 3 along the water inlet pipe 4, the water is restricted by the regulating valve 5 so that the water does not move laterally along the regulating pipe 3, so as to directly enter The water in the cooling pipe 2 is discharged into the venturi tube 8 along the other end thereof in conjunction with the water inlet 7. The venturi tube 8 compresses the water and then releases it to improve the heat dissipation of the water. The released water then enters the refrigeration water storage tank 1 along the regulating pipe 3 and the water inlet 7 to be cooled and circulated; the valve column 53 is moved back, so that the first water hole 54 on the valve column 53 is turned to be connected with the water inlet pipe 4, so that the valve column 53 blocks the water flow from the regulating pipe 3 to the cooling pipe 2, and the cold water flows horizontally in the regulating pipe 3 through the first water hole 54 and the second water hole 55. The cold water passes through the venturi tube 8, and the venturi tube 8 compresses the cold water and releases it into the regulating pipe 3. Based on the Venturi principle, the cooling pipe 2 connected with the inside of the venturi tube 8 through the water inlet 7 generates a negative pressure, so that the water in the cooling pipe 2 enters the venturi tube 8 through the water inlet 7 and is transported along the regulating pipe 3 to the refrigeration water storage tank 1 for storage.

[0037] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A mass concrete temperature control device, comprising a refrigeration water storage tank (1) and a cooling pipe (2), wherein a water pump outlet pipe (10) and a water return pipe (9) are installed on the refrigeration water storage tank (1), characterized in that: The two ends of the cooling pipe (2) are connected to a regulating pipe (3), the regulating pipe (3) is connected to a water inlet pipe (4) connected to a water pump outlet pipe (10), one end of the regulating pipe (3) is connected to a water return pipe (9), a temperature sensor (6) is installed on the cooling pipe (2), a venturi pipe (8) is installed in the regulating pipe (3), a water inlet (7) connected to the cooling pipe (2) is provided on the venturi pipe (8), and a regulating valve (5) for regulating the direction of water flow after entering the cooling pipe (2) is installed in the regulating pipe (3).

2. A mass concrete temperature control device according to claim 1, characterized in that: One end of the regulating pipe (3) away from the return pipe (9) is an open structure. The regulating valve (5) comprises a connecting sleeve (51). The connecting sleeve (51) is mounted on the outer wall of the open end of the regulating pipe (3). A threaded rod (52) is rotatably connected to the middle of the connecting sleeve (51). A turning handle (56) is fixedly connected to one end of the threaded rod (52). A valve column (53) is threadedly connected to the other end of the threaded rod (52). A limiting rod (57) is fixedly connected to one side of the connecting sleeve (51). The valve column (53) is slidably connected to the outer wall of the limiting rod (57). A first water hole (54) corresponding to the water inlet pipe (4) and a second water hole (55) connected to the first water hole (54) are formed on the outer wall of the valve column (53). The second water hole (55) is distributed corresponding to the venturi tube (8).

3. A mass concrete temperature control device according to claim 2, characterized in that: The end diameter of the threaded rod (52) is smaller than the inner diameter of the second water hole (55), and the distance between the water inlet pipe (4) and the connecting sleeve (51) is smaller than the distance between the water inlet pipe (4) and the venturi tube (8).

4. A mass concrete temperature control device according to claim 2, characterized in that: The regulating valve (5) also includes a filter mesh tube (58), one end of which is fixedly connected to the inner wall of the connecting sleeve (51), and the filter mesh tube (58) filters the connecting port at one end of the regulating pipe (3) and the cooling pipe (2).

5. A mass concrete temperature control device according to claim 3, characterized in that: The connecting sleeve (51) is threadedly connected to the outer wall of the regulating tube (3), and a sealing ring is installed at the connection between the connecting sleeve (51) and the regulating tube (3).

6. A mass concrete temperature control device according to claim 1, characterized in that: The regulating pipe (3) is connected to the cooling pipe (2) through flange matching bolts, and the water inlet pipe (4) and the regulating pipe (3) are respectively connected to the water pump outlet pipe (10) and the water return pipe (9) through flanges.

7. A mass concrete temperature control device according to claim 1, characterized in that: The minimum inner diameter of the water inlet (7) is equal to the minimum inner diameter of the venturi tube (8).

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