Temperature control system for mass concrete pouring

Abstract

The utility model relates to the technical field of concrete pouring temperature control, and discloses a temperature control system for large-volume concrete pouring, which comprises a pair of templates in mirror symmetry, a plurality of supporting overflowing pipes, a plurality of radiating pipes and a plurality of temperature sensors, a through hole in one vertical face of each template extends outwards to form a protruding positioning short pipe, the temperature sensor is placed between the two templates, the supporting overflowing pipe is characterized in that the supporting overflowing pipe comprises two main pipe bodies and an auxiliary pipe body connected between the two main pipe bodies in a screwed mode through threads, the main pipe bodies are arranged on the corresponding positioning short pipes, and the auxiliary pipe body is connected with the main pipe bodies in a screwed mode through threads. The two ends of the auxiliary pipe body are limited in the two main pipe bodies through limiting mechanisms correspondingly. By adopting the design of the supporting overflowing pipe in threaded connection with the main pipe body and the auxiliary pipe body, the overall length can be flexibly adjusted by rotating the position of the main pipe body on the outer side of the auxiliary pipe body, concrete walls with different thicknesses can be adapted, and the limitation of a traditional fixed pipe length on a construction scene is broken through.

Description

Technical Field

[0001] This utility model relates to the field of temperature control technology for concrete pouring, and in particular to a temperature control system for large-volume concrete pouring. Background Technology

[0002] Currently, the casting of large-volume concrete walls (especially large-volume walls such as aqueduct webs and side walls) mostly uses ordinary steel or wooden formwork. In summer, the high temperature makes it difficult to cool the concrete, and in winter, the low temperature makes it impossible to cast concrete. In areas with large temperature differences between day and night, it is even more difficult to control the concrete casting temperature. Therefore, when casting large-volume concrete walls, it is necessary to set up a temperature control unit to control the temperature of the concrete wall in order to cure the concrete according to the expected temperature control standards and adapt to the changing ambient temperature of the construction site.

[0003] Chinese patent CN 109372254 B discloses a temperature-controlled template assembly for pouring large-volume concrete walls. The assembly includes a pair of mirror-symmetrical templates, multiple supporting flow pipes, multiple flat-head tie rods, multiple heat dissipation pipes, and multiple temperature sensors. The template is a hollow, flat box-shaped body. Multiple opposing through holes are provided on two sides of the template. The through holes on one side of the template extend outwards to form protruding positioning short pipes. Multiple through holes are also provided on the template side on the same side as the positioning short pipes, also extending outwards to form protruding water inlets. The supporting flow pipes are fitted onto the pair of positioning short pipes. The flat-head tie rods pass through the through holes and are tightened to seal and fix the two templates. The heat dissipation pipes are sealed and inserted into a pair of opposing water inlets. Inlet and outlet water outlets are provided on the top surface of the template. This invention allows for the integrated assembly and disassembly of the concrete pouring template and temperature control system. By controlling the temperature, flow rate, and flow volume of the injected water in real time, it ensures that the concrete is cured according to the expected temperature control standards to adapt to varying construction site temperatures.

[0004] However, when in use, the template size and the layout of the support pipes and heat dissipation pipes are fixed, which makes it less adaptable to concrete walls of different thicknesses or shapes and lacks flexibility. Utility Model Content

[0005] The purpose of this utility model is to solve the problems of fixed template size and layout of support pipes and heat dissipation pipes in the existing technology, which have poor adaptability and insufficient flexibility to concrete walls of different thicknesses or shapes. The proposed temperature control system for large-volume concrete pouring adopts a support flow pipe design with threaded connection between main and auxiliary pipes. The overall length can be flexibly adjusted by rotating the position of the main pipe on the outside of the auxiliary pipe to adapt to concrete walls of different thicknesses, breaking through the limitations of traditional fixed pipe length on construction scenarios.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A temperature control system for large-volume concrete pouring includes a pair of mirror-symmetrical templates, multiple supporting flow pipes, multiple heat dissipation pipes, and multiple temperature sensors. Multiple opposing through holes are provided on two facades of the templates. The through holes on one facade of the templates extend outward to form protruding positioning short pipes. The temperature sensors are placed between the two templates. The supporting flow pipes include two main pipes and a secondary pipe connected to the two main pipes by threads. The main pipes are set on the corresponding positioning short pipes. Both ends of the secondary pipes are respectively limited inside the two main pipes by limiting mechanisms. The heat dissipation pipes are corrugated pipes.

[0008] The heat dissipation pipe is located inside the supporting flow pipe.

[0009] Preferably, the limiting mechanism includes a limiting ring installed at the end of the secondary tube body, the outer diameter of the limiting ring being adapted to the inner diameter of the main tube body, and a sealing ring being provided on the inner circumference of the end of the main tube body near the secondary tube body, the sealing ring being used to seal the gap between the secondary tube body and the main tube body.

[0010] Preferably, the heat dissipation pipe is disposed inside the main pipe body, and both ends of the heat dissipation pipe extend to the side of the two main pipe bodies away from the secondary pipe body. Both ends of the heat dissipation pipe are detachably connected to the end of the corresponding support flow pipe by means of flanges and bolts.

[0011] Preferably, the flange has a Teflon coating on its surface and a sealing ring is provided on the side of the flange closest to the main body.

[0012] Preferably, both the main tube and the auxiliary tube are provided with two cavities, and the heat dissipation pipe is provided in one of the cavities, while a flat-headed pull rod is provided in the other cavity.

[0013] Preferably, the corrugated pipe includes a corrugated stainless steel pipe and a heat storage layer disposed on the outside of the corrugated stainless steel pipe.

[0014] Preferably, the heat storage layer is integrally molded from paraffin material and is set on the outside of the corrugated stainless steel pipe through an aluminum-plastic film.

[0015] Preferably, the main tube has two branches at the end furthest from the secondary tube, and the positioning short tube has two cavities, with one branch at the end closest to the main tube having two ends. One end of the corresponding flat-head pull rod of the main tube is inserted on the outside of one end of the positioning short tube, and the other end of the corresponding heat dissipation tube is inserted on the inside of the other end of the positioning short tube.

[0016] Preferably, the two cavities of the main body are parallel to each other.

[0017] Preferably, the two cavities of the positioning short tube are parallel to each other.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] In this utility model, by adopting a support flow pipe design with threaded connection between the main and auxiliary pipe bodies, the overall length can be flexibly adjusted by rotating the position of the main pipe body on the outside of the auxiliary pipe body, adapting to concrete walls of different thicknesses and breaking through the limitations of traditional fixed pipe length on construction scenarios.

[0020] This utility model realizes a modular quick-release structure for heat dissipation pipes, which can achieve non-destructive replacement. When a single heat dissipation pipe is damaged, it can be pulled out and replaced simply by removing the corresponding flange bolts, without damaging the overall template, thus shortening the maintenance time. The corrugated pipe design can also compensate for construction and installation errors. After demolding, the entire heat dissipation pipe can be pulled out for subsequent reuse.

[0021] A heat storage layer is added inside the heat dissipation pipe to compensate for fluctuations in the inlet water temperature and the concrete temperature. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a temperature control system for large-volume concrete pouring proposed in this utility model.

[0023] Figure 2 This is a side perspective view of a temperature control system for large-volume concrete pouring proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the template surface of a temperature control system for large-volume concrete pouring proposed in this utility model.

[0025] Figure 4 This is a schematic diagram of the support flow pipe for a temperature control system for large-volume concrete pouring proposed in this utility model.

[0026] Figure 5 This is a schematic diagram showing the installation position of the heat dissipation pipe in a temperature control system for large-volume concrete pouring proposed in this utility model.

[0027] Figure 6 This utility model provides a cross-sectional view of the support flow pipe for a temperature control system used in large-volume concrete pouring.

[0028] Figure 7 This is a top-view (axial) sectional view of the support flow pipe of a temperature control system for large-volume concrete pouring proposed in this utility model.

[0029] In the diagram: 1. Template; 2. Supporting flow pipe; 3. Heat dissipation pipe; 4. Through hole; 5. Positioning short pipe; 6. Limiting ring; 7. Sealing ring; 8. Flange; 9. Corrugated stainless steel pipe; 10. Cavity; 11. Heat storage layer; 12. Flat-head tie rod; 13. Temperature sensor; 14. Main pipe body; 15. Secondary pipe body. Detailed Implementation

[0030] To make the technical means and objectives and effects of this utility model easier to understand, the embodiments of this utility model will be described in detail below with reference to specific figures.

[0031] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0032] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0034] Reference Figures 1-7A temperature control system for large-volume concrete pouring comprises a pair of mirror-symmetrical templates 1, multiple supporting flow pipes 2, multiple heat dissipation pipes 3, and multiple temperature sensors 13 for real-time feedback of temperature data in the large-volume concrete pouring area. Multiple opposing through holes 4 are provided on the two facades of the templates 1. The through holes 4 on one facade of the template 1 extend outward to form protruding positioning short pipes 5. Temperature sensors are placed between the two templates 1. The number of temperature sensors 13 can be selected appropriately and arranged on the concrete contact surface between the two templates 1, or they can be arranged inside the positioning short pipes 5. The supporting flow pipes 2 include two main pipes 14 and a secondary pipe 15 threadedly connected between the two main pipes 14. The main pipes 14 are mounted on the corresponding positioning short pipes 5. Both ends of the secondary pipe 15 are respectively limited inside the two main pipes 14 by limiting mechanisms. The heat dissipation pipes 3 are corrugated pipes installed inside the supporting flow pipes 2, supplied with water through external pipelines (one end connected to water, the other end discharging water), thereby controlling the temperature during concrete pouring.

[0035] This device adopts a support flow pipe 2 design with threaded connection between the main and auxiliary pipe bodies. The overall length can be flexibly adjusted by rotating the main pipe body 14 to the outside of the auxiliary pipe body 15, adapting to concrete walls of different thicknesses and breaking through the limitations of traditional fixed pipe length on construction scenarios.

[0036] As a preferred example of this application, the limiting mechanism includes a limiting ring 6 installed at the end of the secondary tube 15. The outer diameter of the limiting ring 6 is adapted to the inner diameter of the main tube 14. A sealing ring 7 is provided on the inner circumference of the end of the main tube 414 near the secondary tube 15. The inner ring of the sealing ring 7 abuts against the outer side of the secondary tube 15 to seal the gap between the secondary tube 15 and the main tube 14.

[0037] The outer diameter of the limiting ring 6 is precisely matched with the inner diameter of the main tube 14. When the secondary tube 15 is screwed into the set position, the limiting ring 6 can form a rigid abutment with the inner wall of the main tube 14 to prevent the secondary tube 15 from axially dislodging.

[0038] The sealing ring 7 is made of fluororubber, and the inner ring is interference-fitted with the outer wall of the secondary pipe body 15. Even if the pipeline undergoes slight deformation due to thermal expansion and contraction, the sealing surface can still be tightly fitted to prevent concrete from seeping in.

[0039] As a preferred example of this application, the heat dissipation pipe 3 is disposed inside the main pipe body 14. The main pipe body 14 and the secondary pipe body 15 are also made of a high thermal conductivity material, such as copper. The two ends of the heat dissipation pipe 3 extend to the side of the two main pipe bodies 14 away from the secondary pipe body 15. Both ends of the heat dissipation pipe 3 are detachably connected to the threaded interface opened on the side of the corresponding support flow pipe 2 through the flange 8 and bolts.

[0040] In the existing technology, the heat dissipation pipe 3 is often directly set between the two templates 1. During use, it has been found that the heat dissipation pipe 3 is easily firmly adhered to the concrete due to the solidification of the concrete, resulting in the waste of the heat dissipation pipe 3 and making it unusable.

[0041] In this invention, the modular quick-release structure of the heat dissipation pipe 3 is achieved through the aforementioned structure, enabling non-destructive replacement of the heat dissipation pipe 3. When a single heat dissipation pipe 3 is damaged, it can be removed and replaced simply by disassembling the corresponding flange bolts, without damaging the overall template 1, thus shortening maintenance time. The corrugated pipe structure design can also compensate for construction and installation errors. After demolding, the entire heat dissipation pipe 3 can be extracted for subsequent reuse, while the supporting flow pipe 2 is permanently retained. Thus, although this invention has slightly higher initial structural design and production costs than existing technologies, the reusability of the heat dissipation pipe 3 amortizes the costs, resulting in a reduction in the overall cost.

[0042] As a preferred example of this application, the surface of the flange 8 is provided with a Teflon coating, which can prevent concrete slurry from seeping in and causing disassembly difficulties, and a sealing ring 7 is provided on the side of the flange 8 near the main body 14 to further prevent concrete from seeping in.

[0043] As a preferred example of this application, both the main tube 14 and the secondary tube 15 are provided with two cavities, and the heat dissipation pipe 3 is provided in one of the cavities. The other cavity is provided with a flat-headed pull rod 12. The two cavities are connected together at the part of the inner cavity of the main tube 14 near the secondary tube 15, which facilitates the movement of the end of the secondary tube 15 within it.

[0044] In the above structural design, one cavity is dedicated to arranging the heat dissipation pipe 3; another cavity has a built-in flat-head tie rod 12, which is in direct contact with the concrete side pressure to avoid the tie rod being affected by thermal expansion and contraction; and the partition between the two cavities can be made of heat insulation board (ceramic fiber) to block the heat dissipation pipe 3 from transferring heat to the flat-head tie rod 12.

[0045] As a preferred example of this application, the corrugated pipe includes a corrugated stainless steel pipe 9 and a heat storage layer 11 disposed on the outside of the corrugated stainless steel pipe 9. The heat storage layer 11 is integrally formed of paraffin material and disposed on the outside of the corrugated stainless steel pipe 9 through an aluminum-plastic film.

[0046] Cooling water can directly pass through the inner corrugated stainless steel pipe 9 (inlet chamber), utilizing the high thermal conductivity of stainless steel and the high-temperature zone of the concrete core to achieve heat transfer. Meanwhile, the heat storage layer 11 can achieve the following when the inlet water temperature and concrete temperature fluctuate:

[0047] When the incoming water is too cold, the paraffin wax solidifies and releases heat to compensate for the sudden change in stress on the concrete surface caused by the low temperature.

[0048] When the water intake is insufficient, the paraffin wax melts and absorbs heat, thus buffering the accumulation of heat.

[0049] During the concrete temperature rise period: heat of hydration of concrete → transferred to heat storage layer 11 → heat storage layer 11 absorbs heat and melts (solid → liquid), thus slowing down the rate of concrete temperature rise;

[0050] Low temperature period:

[0051] Heat return: As the ambient temperature drops, the heat storage layer 11 solidifies and releases heat. The heat is then transferred to the circulating water through the corrugated stainless steel pipe 9 to maintain the concrete curing temperature. In conjunction with the water circulation system, the water pump is activated as needed to assist in heat dissipation or heating.

[0052] As a preferred example of this application, the main tube 14 is branched at one end away from the secondary tube 15, and the positioning short tube 5 has two cavities, with one end near the main tube 14 branching at one end. One end of the corresponding flat-headed tie rod 12 of the main tube 14 is inserted on the outside of one end of the positioning short tube 5, and one end of the corresponding heat dissipation pipe 3 (the heat dissipation pipe 3 is connected to this end of the main tube 14 via a flange 8 and bolts) is inserted on the inside of the other end of the positioning short tube 5. The two cavities of the main tube 14 are parallel to each other, and the two cavities of the positioning short tube 5 are parallel to each other.

[0053] One cavity of the positioning short tube 5 is dedicated to inserting the flat-headed tie rod 12, forming a purely mechanical force transmission path;

[0054] Another cavity is inserted into the heat dissipation tube 3. The heat dissipation tube 3 is axially positioned by pressing it with the flange face. This method makes it easy to pull the heat dissipation tube 3 out of the cavity of the positioning short tube 5 after subsequent demolding.

[0055] Compared to existing technologies, this device first adopts a support flow pipe 2 design with threaded connection between the main and auxiliary pipe bodies. The overall length can be flexibly adjusted by rotating the main pipe 14 to the outside of the auxiliary pipe 15, adapting to concrete walls of different thicknesses and breaking through the limitations of traditional fixed pipe length on construction scenarios. In addition, the heat dissipation pipe 3 is built into the support flow pipe 2, realizing a modular quick-release structure for the heat dissipation pipe 3. This allows for non-destructive replacement of the heat dissipation pipe 3. When a single heat dissipation pipe 3 is damaged, it can be pulled out and replaced simply by removing the corresponding flange bolts, without damaging the overall template 1, thus shortening maintenance time. The corrugated pipe design can also compensate for construction and installation errors. After demolding, the heat dissipation pipe 3 can be pulled out as a whole for subsequent reuse. At the same time, a heat storage layer 11 is added inside the heat dissipation pipe 3 to compensate for fluctuations in inlet water temperature and concrete temperature, resulting in excellent performance.

[0056] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A temperature control system for large-volume concrete pouring, comprising a pair of mirror-symmetrical templates (1), multiple supporting flow pipes (2), multiple heat dissipation pipes (3), and at least one temperature sensor (13), wherein multiple opposing through holes (4) are provided on two vertical surfaces of the templates (1), and the through holes (4) on one vertical surface of the templates (1) extend outward to form protruding positioning short pipes (5), and the temperature sensor (13) is placed between the two templates (1), characterized in that: The supporting flow pipe (2) includes two main pipe bodies (14) and a secondary pipe body (15) screwed between the two main pipe bodies (14). The main pipe bodies (14) are set on the corresponding positioning short pipes (5). Both ends of the secondary pipe body (15) are respectively limited inside the two main pipe bodies (14) by limiting mechanisms. The heat dissipation pipe (3) is located inside the supporting flow pipe (2).

2. The temperature control system for large-volume concrete pouring according to claim 1, characterized in that: The limiting mechanism includes a limiting ring (6) installed at the end of the secondary tube (15). The outer diameter of the limiting ring (6) is adapted to the inner diameter of the main tube (14). A sealing ring (7) is provided on the inner circumference of the end of the main tube (14) near the secondary tube (15). The sealing ring (7) is used to seal the gap between the secondary tube (15) and the main tube (14).

3. The temperature control system for large-volume concrete pouring according to claim 2, characterized in that: The heat dissipation pipe (3) is a corrugated pipe. Both ends of the heat dissipation pipe (3) extend to the side of the two main pipe bodies (14) away from the secondary pipe body (15). Both ends of the heat dissipation pipe (3) are detachably connected to the end of the corresponding support flow pipe (2) through flanges (8) and bolts.

4. The temperature control system for large-volume concrete pouring according to claim 3, characterized in that: The flange (8) has a Teflon coating on its surface and a sealing ring (7) is provided on the side of it near the main body (14).

5. The temperature control system for large-volume concrete pouring according to claim 4, characterized in that: Both the main tube (14) and the secondary tube (15) are provided with two cavities, and the heat dissipation pipe (3) is provided in one of the cavities, while the other cavity is provided with a flat-headed pull rod (12).

6. The temperature control system for large-volume concrete pouring according to claim 5, characterized in that: The corrugated pipe includes a corrugated stainless steel pipe (9) and a heat storage layer (11) disposed on the outside of the corrugated stainless steel pipe (9).

7. A temperature control system for large-volume concrete pouring according to claim 6, characterized in that: The heat storage layer (11) is integrally molded from paraffin material and is set outside the corrugated stainless steel pipe (9) by an aluminum-plastic film.

8. A temperature control system for large-volume concrete pouring according to claim 7, characterized in that: The main tube (14) has two branches at one end away from the secondary tube (15). The positioning short tube (5) has two cavities, and its end closer to the main tube (14) has two branches. One end of the corresponding flat-head pull rod (12) of the main tube (14) is inserted on the outside of one end of the positioning short tube (5), and one end of the corresponding heat dissipation tube (3) is inserted on the inside of the other end of the positioning short tube (5).

9. A temperature control system for large-volume concrete pouring according to claim 8, characterized in that: The two cavities of the main body (14) are parallel to each other.

10. A temperature control system for large-volume concrete pouring according to claim 9, characterized in that: The two cavities of the positioning short tube (5) are parallel to each other.

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