A cooling device for mass concrete placement

Abstract

The utility model provides a kind of cooling device of mass concrete pouring.The utility model includes the pipeline being arranged in wall and the water tank being arranged in one side of wall, and the opening is formed in one side and the other side of wall, one end of pipeline is communicated with one opening, the other end is communicated with the other opening, one side of water tank is communicated with one opening by inlet pipe, and the other opening is communicated with the other side of water tank by outlet pipe, and the pipe reducing device is arranged between inlet pipe and opening and between outlet pipe and opening.The utility model can extend the pipe penetrating out of wall when cooling, and it is convenient to seal, and the pipe penetrating can be hidden in wall after cooling, and it is convenient to seal.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete cooling, and in particular to a cooling device for large-volume concrete pouring. Background Technology

[0002] Large-volume concrete, due to its high cement content, releases a significant amount of heat of hydration during the hydration process. This heat accumulates inside the concrete, causing a rapid rise in internal temperature. For several days after pouring, the heat of hydration can make the internal temperature of the concrete tens of degrees Celsius higher than the ambient temperature. If this heat cannot be effectively dissipated, a large temperature gradient will form inside the concrete. When the temperature stress exceeds the tensile strength of the concrete, temperature cracks are likely to occur. To prevent cracking due to temperature stress, strict temperature control of the concrete is necessary. This includes measures to reduce the maximum internal temperature of the concrete, such as using cement with low heat of hydration, reducing the amount of cement used, and installing cooling water pipes, typically made of metal or plastic.

[0003] When installing cooling water pipes, some manufacturers conceal the ends of the pipes within the wall, then connect external pipes through the wall to the pipes for cooling. This method is very inconvenient when connecting pipes and is prone to leaks at the connections. Another common method is to extend a portion of the pipes out of the wall to connect to external pipes for cooling. While this is more convenient when connecting external pipes, the exposed pipes after cooling can cause significant problems, even injuries if pedestrians touch them. Utility Model Content

[0004] In view of this, the present invention aims to provide a cooling device for large-volume concrete pouring, in which the through-pipe extends out of the wall during cooling and is easy to seal, and after cooling, the through-pipe is concealed inside the wall and is easy to seal.

[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0006] A cooling device for large-volume concrete pouring includes pipes installed in a wall and a water tank located on one side of the wall, with openings on both one and the other side of the wall.

[0007] One end of the pipeline is connected to one of the openings, and the other end is connected to another opening. One side of the water tank is connected to one of the openings via an inlet pipe, and the other opening is connected to the other side of the water tank via an outlet pipe. A pipe shrinking device is provided between the inlet pipe and the opening, and between the outlet pipe and the opening.

[0008] The tube shrinking device includes an annular seat whose outer wall is fixedly connected to the inner wall of the opening, a tube passing through the center of the annular seat, and a sealing element sleeved between the tube and the inner surface of the annular seat. The tube has a through hole in the center along the axial direction, the through hole is connected to the opening, and a retaining ring is fixedly sleeved on one end of the tube.

[0009] Furthermore, the sealing element includes a mechanical oil seal and a limiting ring detachably connected to the other end of the through pipe. The sealing ring of the mechanical oil seal is disposed between the outer surface of the through pipe and the inner surface of the ring seat. When the limiting ring is fixed on the through pipe, the limiting ring compresses the spring of the mechanical oil seal, and the spring stores energy.

[0010] Furthermore, a sleeve is fixedly connected to the end of the ring seat near the retaining ring, a bolt ring is threaded to the outer surface of the sleeve, and a clamping ring is fixedly connected to the end of the bolt ring away from the ring seat. There is a clamping space between the inner surface of the clamping ring and the outer surface of the sleeve, and the water inlet pipe or the water outlet pipe is connected to the clamping space.

[0011] Furthermore, a spiral pressure bar is fixedly connected circumferentially inside the clamping ring, and the inner diameter of the pressure bar decreases sequentially from away from the sleeve to near the sleeve.

[0012] Furthermore, it also includes an end cap, the outer diameter of which is the same as the inner diameter of the opening, and the end of the end cap is provided with a connecting post that is adapted to the perforation.

[0013] Furthermore, it also includes a pressure stabilizing device and a water pump. The water tank is connected to the inlet of the pressure stabilizing device through a connecting pipe. The end of the inlet pipe away from the wall is connected to the outlet of the pressure stabilizing device. The water pump is connected between the water tank and the pressure stabilizing device.

[0014] Furthermore, it also includes a processor with a temperature acquisition unit, a heating rod located in the water tank, and a temperature control switch for controlling the heating of the heating rod. The pressure stabilizing device and the water outlet pipe are both equipped with thermometers. The temperature acquisition unit is used to acquire the temperature of the thermometers, and the processor controls the temperature control switch to open / close.

[0015] Furthermore, the wall is provided with multiple pipes equipped with the shrinking device, one end of which is connected to the outlet of the pressure stabilizing device, and the other end is connected to the water tank.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This invention allows for easy cooling of walls by extending the pipe outside the wall and connecting it to external pipelines. After cooling, the pipe can be retracted into the wall, and the opening can be sealed with cement. After the pipe is extended, a sealing element seals the gap between the outer surface of the pipe and the inner surface of the ring seat to prevent water leakage. After tightening the limiting ring on the pipe, the mechanical oil seal's sealing ring is pressed against the ring seat by the spring, and oil sealing is achieved through grease, resulting in a very good sealing effect. Attached Figure Description

[0018] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of this utility model. The illustrative embodiments and descriptions of this utility model are used to explain this utility model. The directional terms such as front / back, up / down, etc., used therein are only used to indicate relative positional relationships and do not constitute an improper limitation of this utility model. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a structural schematic diagram of the present invention from another perspective;

[0021] Figure 3 This is a schematic diagram of the tube shrinking device of this utility model;

[0022] Figure 4 This is an exploded view of the tube shrinking device of this utility model;

[0023] Figure 5 This is an exploded view of the mechanical oil seal and the upper structure of the sleeve of this utility model;

[0024] Figure 6 This is a simplified structural diagram of the present invention from a top view.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Wall; 2. Pipeline; 3. Water tank; 4. Opening; 5. Inlet pipe; 6. Outlet pipe; 7. Ring seat; 8. Through pipe; 9. Through hole; 10. Retaining ring; 11. Mechanical oil seal; 12. Limiting ring; 13. Sealing ring; 14. Spring; 15. Connecting seat; 16. Sleeve; 17. Bolt ring; 18. Compression ring; 19. Compression space; 20. Pressure strip; 21. End cap; 22. Connecting column; 23. Pressure stabilizing device; 24. Water pump; 25. Processor; 26. Heating rod; 27. Temperature control switch; 28. Thermometer. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0028] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "back" appear, indicating orientation or positional relationship, they are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model; if terms such as "first" or "second" appear, they are also used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] Furthermore, in the description of this utility model, unless otherwise explicitly defined, the terms "installation," "connection," "joining," and "connector" should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral 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, or it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model in light of the specific circumstances.

[0030] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0031] This embodiment relates to a cooling device for large-volume concrete pouring, one exemplary structure of which is as follows: Figure 1-6 As shown.

[0032] Overall, such as Figure 1-2 As shown, the cooling device for the large-volume concrete pouring includes pipes 2 installed inside the wall 1 and a water tank 3 located on one side of the wall 1. Openings 4 are provided on both sides of the wall 1. The openings 4 are drilled after the wall 1 is poured, and the pipes 2 are pre-embedded within the pouring frame during the pouring process. One end of the pipe 2 is connected to one opening 4, and the other end is connected to another opening 4. One side of the water tank 3 is connected to one opening 4 via an inlet pipe 5, and the other opening 4 is connected to the other side of the water tank 3 via an outlet pipe 6. Tube shrinking devices are provided between the inlet pipe 5 and the opening 4, and between the outlet pipe 6 and the opening 4.

[0033] As an example structure of a tube shrinking device, such as Figure 3-4As shown, it includes a ring seat 7 whose outer wall is fixedly connected to the inner wall of the opening 4, a through pipe 8 passing through the center of the ring seat 7, and a sealing element fitted between the through pipe 8 and the inner surface of the ring seat 7. The through pipe 8 has an axially oriented through hole 9 that communicates with the opening 4, and a retaining ring 10 is fixedly fitted at one end of the through pipe 8. The shrinking device is installed with the pipe 2 after the opening is made. After the ring seat 7 of the shrinking device is inserted into the opening 4, cement is applied to seal the outer wall of the ring seat 7 and the inner wall of the opening 4. During cooling, the through pipe 8 of the shrinking device is pulled directly out of the wall 1, and the through pipe 8 and the ring seat 7 are sealed with the sealing element before cooling. After cooling, the sealing element is removed, and the through pipe 8 is pushed back into the wall 1, hiding it within the wall 1. Cement is then applied to seal the opening 4. This design facilitates the connection of the pipe 2 to external water pipes and allows the through pipe 8 to be hidden after cooling, ensuring the aesthetics of the exterior of the wall 1 and preventing obstruction of pedestrians. The seals can also be reused.

[0034] Among them, such as Figure 5 As shown, the sealing element includes a mechanical oil seal 11 and a limiting ring 12 detachably connected to the other end of the through-tube 8. The sealing ring 13 of the mechanical oil seal 11 is located between the outer surface of the through-tube 8 and the inner surface of the ring seat 7. When the limiting ring 12 is fixed on the through-tube 8, the limiting ring 12 compresses the spring 14 of the mechanical oil seal 11, and the spring 14 stores energy. The spring 14 of the mechanical oil seal 11 is sleeved on the through-tube 8. Grease is applied to the sealing ring 13 of the mechanical oil seal 11, and the spring 14 is sleeved on the through-tube 8. One end of the spring 14 is pressed against the limiting ring 12 after it is tightened. After the spring 14 stores energy, the other end of the spring 14 presses the sealing ring 13 against the ring seat 7 through the connecting seat 15, thereby sealing the gap between the through-tube 8 and the ring seat 7 with oil through the sealing element. When the limiting ring 12 stores energy in the spring 14, the other end of the tube 8 is pressed against the other end face of the ring seat 7 due to the presence of the retaining ring 10, thus enabling the spring 14 to store energy and thereby achieve a good sealing effect.

[0035] In this embodiment, a sleeve 16 is fixedly connected to the end of the ring seat 7 near the retaining ring 10. A bolt ring 17 is threadedly connected to the outer surface of the sleeve 16. A clamping ring 18 is fixedly connected to the end of the bolt ring 17 away from the ring seat 7. A clamping space 19 is formed between the inner surface of the clamping ring 18 and the outer surface of the sleeve 16. The inlet pipe 5 or the outlet pipe 6 is connected within the clamping space 19. The inner diameter of the sleeve 16 is larger than the outer diameter of the retaining ring 10. When installing the pipe shrinking device and the pipe 2, the end of the pipe 2 is first placed into the clamping space 19. Then, by rotating the bolt ring 17, the bolt ring 17 moves towards the pipe 2 while being tightened. As the bolt ring 17 rotates, the inner surface of the bolt ring 17 presses the pipe 2 against the sleeve 16.

[0036] Preferably, a spiral pressure strip 20 is fixedly connected circumferentially inside the clamping ring 18, and the inner diameter of the pressure strip 20 decreases sequentially from away from the sleeve 16 to near the sleeve 16. The pressure strip 20 presses the pipe 2 against the outer surface of the sleeve 16. As the bolt ring 17 is continuously tightened, the distance between the inner surface of the pressure strip 20 and the outer surface of the pipe 2 becomes smaller and smaller, thus accommodating pipes 2 of different thicknesses and pressing pipes 2 of different thicknesses against the outer surface of the sleeve 16.

[0037] In addition, this embodiment also includes an end cap 21, the outer diameter of which is the same as the inner diameter of the opening 4, and the end of the end cap 21 is provided with a connecting post 22 that matches the through hole 9. After cooling is complete, the seal is removed and the through pipe 8 is pushed back into the opening 4, the connecting post 22 of the end cap 21 is inserted into the through hole 9, and the end cap 21 is inserted into the opening 4. Thus, the through hole 9 is sealed by the connecting post 22, and the opening 4 is sealed by the end cap 21. After sealing the through hole 9 and the opening 4, excessive air is prevented from entering the opening 4 and the inside of the pipe 2, reducing the occurrence of oxidation reaction, thereby reducing rusting of the pipe 2 and the pipe shrinking device, preventing damage to the wall 1 from the opening 4, and improving service life. Furthermore, after sealing the opening 4 with the end cap 21, it is convenient to apply cement for sealing.

[0038] In this embodiment, as Figure 6 As shown, it also includes a pressure stabilizing device 23 and a water pump 24. The water tank 3 is connected to the inlet of the pressure stabilizing device 23 via a connecting pipe, and the end of the inlet pipe 5 away from the wall 1 is connected to the outlet of the pressure stabilizing device 23. The water pump 24 is connected between the water tank 3 and the pressure stabilizing device 23. The structure of the pressure stabilizing device 23 is existing technology, and any structure that can achieve stable water pressure entering the wall 1 is acceptable. The specific structure of the pressure stabilizing device 23 will not be described in detail here.

[0039] In addition, this embodiment also includes a processor 25 with a temperature acquisition unit, a heating rod 26 located in the water tank 3, and a temperature control switch 27 for controlling the heating of the heating rod 26. The pressure stabilizing device 23 and the outlet pipe 6 are both equipped with thermometers 28. The temperature acquisition unit is used to acquire the temperature of the thermometers 28, and the processor 25 controls the temperature control switch 27 to open / close. The processor 25 is also existing technology, capable of processing temperature signals and controlling the temperature control switch 27. By acquiring the water temperature flowing out of the water tank 3 and the water temperature flowing into the water tank 3, the processor 25 controls the opening / closing of the temperature control switch 27 according to preset values, thereby controlling the heating rod 26 to operate, so that the water temperature in the water tank 3 reaches a reasonable value. This reasonable value ensures that the difference between the inlet water temperature and the highest temperature inside the wall 1 is 15℃~25℃, and the difference between the outlet water temperature and the inlet water temperature is 3℃~6℃. By adjusting parameters such as the flow rate, temperature, and water circulation time of the circulating water, the temperature change inside the concrete can be precisely controlled, keeping it within a reasonable range. It can effectively solve the problem of low water temperature under natural conditions during winter construction, and automatically adjust the water temperature. The overall structure is simple and the manufacturing process is simple, reducing on-site processing difficulty and cost, and it is suitable for cooling operations in different construction environments.

[0040] In addition, the wall 1 is equipped with multiple pipes 2 with shrinking devices. One end of the pipe 2 is connected to the outlet of the pressure stabilizing device 23, and the other end is connected to the water tank 3.

[0041] Preferably, when the concrete thickness of wall 1 is no more than 3.0m, a single-layer multi-loop water cooling system is adopted. The length of the water pipe in each loop unit is 150-200m, and the width of the cooling unit is 5-10m. The cooling water pipes are arranged in the middle of the concrete. Furthermore, when arranging a single-loop cooling system, it is not necessary to install a cooling water pressure stabilizing device 23 at the water inlet.

[0042] Finally, pipe 2 is preferably a metal pipe or a plastic pipe. For steel pipes, the diameter is 20-50mm, the pipe spacing is 1-2m, and the water flow velocity is 0.8-1m / s. For plastic pipes, the diameter is 20-40mm, the pipe spacing is 0.8-1.5m, and the water flow velocity is 0.8-1m / s.

[0043] The working process of this embodiment is as follows:

[0044] When preparing to cool the inside of the wall 1, pull the through pipe 8 out of the wall 1. When pulling the through pipe 8 outward, the through pipe 8 moves outward in the inner ring of the ring seat 7. When the retaining ring 10 on the through pipe 8 abuts against the end face of the ring seat 7, apply grease to the sealing ring 13 of the mechanical oil seal 11, pass it through the through pipe 8 and contact the other end face of the ring seat 7. Then put on the spring 14 and the limiting ring 12, screw the limiting ring 12 into the through pipe 8 and press it against the spring 14, so that the spring 14 stores energy, so that the spring 14 presses the sealing ring 13 against the ring seat 7 to seal the gap between the through pipe 8 and the ring seat 7.

[0045] Then connect the external water pipe to the through pipe 8. The external water pipe can be directly screwed onto the thread of the through pipe 8. After cooling, remove the seal in the reverse order mentioned above, then push the through pipe 8 into the opening 4 and hide it in the wall 1. Finally, insert the connecting post 22 of the end cap 21 into the through hole 9, insert the end cap 21 into the opening 4, and use cement or other materials to seal it.

[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cooling device for large-volume concrete pouring, characterized in that: It includes pipes (2) installed in the wall (1) and a water tank (3) installed on one side of the wall (1), with openings (4) on both one side and the other side of the wall (1). One end of the pipeline (2) is connected to one of the openings (4), and the other end is connected to another opening (4). One side of the water tank (3) is connected to one of the openings (4) through the inlet pipe (5), and the other opening (4) is connected to the other side of the water tank (3) through the outlet pipe (6). A pipe shrinking device is provided between the inlet pipe (5) and the opening (4), and between the outlet pipe (6) and the opening (4). The tube shrinking device includes an annular seat (7) whose outer wall is fixedly connected to the inner wall of the opening (4), a tube (8) passing through the center of the annular seat (7), and a sealing element sleeved between the inner surface of the tube (8) and the annular seat (7). The tube (8) has a through hole (9) axially opened in the center, and the through hole (9) communicates with the opening (4). A retaining ring (10) is fixedly sleeved on one end of the tube (8).

2. The cooling device for large-volume concrete pouring according to claim 1, characterized in that: The sealing element includes a mechanical oil seal (11) and a limiting ring (12) detachably connected to the other end of the through tube (8). The sealing ring (13) of the mechanical oil seal (11) is located between the outer surface of the through tube (8) and the inner surface of the ring seat (7). When the limiting ring (12) is fixed on the through tube (8), the limiting ring (12) compresses the spring (14) of the mechanical oil seal (11), and the spring (14) stores energy.

3. The cooling device for large-volume concrete pouring according to claim 1 or 2, characterized in that: A sleeve (16) is fixedly connected to the end of the ring seat (7) near the retaining ring (10). A bolt ring (17) is threadedly connected to the outer surface of the sleeve (16). A clamping ring (18) is fixedly connected to the end of the bolt ring (17) away from the ring seat (7). A clamping space (19) is formed between the inner surface of the clamping ring (18) and the outer surface of the sleeve (16). The water inlet pipe (5) or the water outlet pipe (6) is connected to the clamping space (19).

4. The cooling device for large-volume concrete pouring according to claim 3, characterized in that: The clamping ring (18) has a spiral pressure strip (20) fixedly connected in the circumferential direction inside. The inner diameter of the pressure strip (20) decreases sequentially from away from the sleeve (16) to close to the sleeve (16).

5. The cooling device for large-volume concrete pouring according to any one of claims 1-4, characterized in that: It also includes an end cap (21), the outer diameter of which is the same as the inner diameter of the opening (4), and the end of the end cap (21) is provided with a connecting post (22) that is adapted to the through hole (9).

6. The cooling device for large-volume concrete pouring according to claim 5, characterized in that: It also includes a pressure stabilizing device (23) and a water pump (24). The water tank (3) is connected to the inlet of the pressure stabilizing device (23) through a connecting pipe. The end of the inlet pipe (5) away from the wall (1) is connected to the outlet of the pressure stabilizing device (23). The water pump (24) is connected between the water tank (3) and the pressure stabilizing device (23).

7. The cooling device for large-volume concrete pouring according to claim 6, characterized in that: It also includes a processor (25) with a temperature acquisition unit, a heating rod (26) located in the water tank (3), and a temperature control switch (27) for controlling the heating of the heating rod (26). The pressure stabilizing device (23) and the water outlet pipe (6) are both equipped with thermometers (28). The temperature acquisition unit is used to acquire the temperature of the thermometer (28), and the processor (25) controls the temperature control switch (27) to open / close.

8. The cooling device for large-volume concrete pouring according to claim 6 or 7, characterized in that: The wall (1) is provided with multiple pipes (2) with the shrinking device. One end of the pipe (2) is connected to the outlet of the pressure stabilizing device (23), and the other end is connected to the water tank (3).

Images