A large volume concrete curing and supporting device and its installation method and curing method

Abstract

The present invention discloses a large-volume concrete curing and supporting device and its installation method and curing method, which belong to the technical field of concrete curing and supporting technology. Specifically, it is a large-volume concrete curing and supporting device and method. The curing and supporting device of the present invention includes: a supporting aluminum mold, a cooling pipe, a reversing component, a temperature measuring element and a control system. A plurality of groups of cooling pipes are staggered up and down along the height direction of the concrete, and the two ends of each group of cooling pipes are connected to the water reservoir through a reversing component. According to the monitoring results of temperature measuring element one and temperature measuring element two, the water supply pump is controlled to increase the water supply, or the inlet and outlet water directions of the cooling pipe are reversed, thereby effectively improving the cooling effect of the concrete and ensuring the uniformity of the concrete cooling without the need for additional cooling equipment to perform special cooling on the inlet and outlet water temperatures. It is energy-saving and low-cost, and is conducive to wide promotion and implementation.

Description

Technical Field

[0001] The present invention belongs to the technical field of concrete curing and supporting technology, and more specifically, relates to a large-volume concrete curing and supporting device and an installation method and a curing method thereof. Background Art

[0002] Mass concrete refers to a large volume of concrete with a minimum geometric dimension of no less than 1m. Mass concrete is often used in modern buildings. Due to its large structural size and low thermal conductivity, the hydration heat generated by the hydration of the cementitious material cannot be dissipated quickly, which will cause the internal temperature of the concrete to be too high and increase the temperature difference between the inside and outside of the concrete, causing cracks in the concrete and affecting the strength and durability of the structure.

[0003] Existing large-volume concrete curing generally arranges cooling pipes inside the poured concrete, and supplies cooling liquid for cooling the large-volume concrete during curing through the cooling pipes, and uses a water cooling device to supply cooling water for cooling. However, since the existing cooling pipe arrangement is mostly simple and uniform, and the water temperature and flow of the cooling pipes need to be adjusted every 30 to 60 minutes according to the temperature measurement data, the water temperature and flow of the cooling pipes cannot be adjusted in time according to the temperature changes of the concrete, the cooling effect is not ideal, the operation is cumbersome and the cooling efficiency is low; and each cooling circuit is only provided with one water inlet and outlet, and the cooling water must pass through the entire cooling circuit, which results in the concrete near the water inlet port being effectively cooled, but the concrete far from the water inlet end, especially the concrete in the middle and tail areas, has an unsatisfactory cooling effect, resulting in low cooling accuracy and poor cooling effect. Summary of the Invention

[0004] The present invention aims to provide a large-volume concrete curing and support device, its installation method, and concrete pouring and curing methods, thereby addressing the relatively poor cooling effect of existing large-volume concrete curing techniques. The curing and support device of the present invention can effectively improve the cooling effect of large-volume concrete and ensure uniform cooling within the concrete.

[0005] In order to achieve the above object, the technical solution provided by the present invention is:

[0006] The present invention provides a large-volume concrete curing and supporting device, comprising:

[0007] The supporting aluminum formwork is installed on the periphery of the concrete, forming a space for pouring and curing concrete;

[0008] There are multiple groups of cooling pipes staggered along the height direction of the concrete. Both ends of each group of cooling pipes are supported on the corresponding supporting aluminum formwork and connected to the water reservoir;

[0009] The reversing assembly is installed on the connecting pipes between the two ends of each cooling pipe and the water reservoir, and is used to reverse the cooling water inlet direction of the cooling pipe, and the water inlet pipe of the reversing assembly is connected to a water pump;

[0010] Temperature measuring elements, including temperature measuring element 1 and temperature measuring element 2, where temperature measuring element 1 is pre-buried in the concrete and is used to monitor the temperature inside the concrete, and temperature measuring element 2 is installed at both ends of each cooling pipe group and is used to monitor the inlet and outlet water temperatures of the cooling pipes; and

[0011] The control system is connected with the temperature measuring element 1, the temperature measuring element 2, the water supply pump and the reversing component, and is used to control the water supply amount of the water supply pump and the reversing of the reversing component.

[0012] Furthermore, each set of cooling pipes includes:

[0013] The cooling main pipe is composed of several heat exchange bellows distributed in parallel and at intervals inside the concrete, and both ends of the heat exchange bellows are inserted and supported on the supporting aluminum formwork.

[0014] The branch pipe is located outside the supporting aluminum mold and is connected to the end of the heat exchange bellows. One end of the branch pipe is closed and the other end is connected to the reversing assembly.

[0015] One end of the cooling tube is installed inside the branch pipe, and the other end is inserted into the inside of the heat exchange bellows and close to the top of the heat exchange bellows. Both ends of the cooling tube are provided with a one-way diaphragm to allow the internal water flow of the cooling tube to flow in one direction from the end connected to the branch pipe to the inside of the heat exchange bellows.

[0016] Furthermore, both ends of the heat exchange bellows are connected to the branch pipe through a connecting component, and the connecting component includes an external threaded joint. A through hole matching the external threaded joint is processed on the supporting aluminum mold, and the external threaded joint is installed in the through hole, and its two ends are respectively threadedly connected to the branch pipe and the heat exchange bellows; a groove surrounding the external threaded joint is formed on the external threaded joint corresponding to the outer side wall of the supporting aluminum mold, and an airbag is installed in the groove.

[0017] Furthermore, the cooling tube is inserted into the 1 / 4 to 1 / 2 position inside the heat exchange bellows, the middle height of the heat exchange bellows is lower than the height of its two ends or the whole is arranged horizontally, and the middle part of the heat exchange bellows is connected to an upwardly arranged sealing tube, and the top of the sealing tube is removably installed with a sealing plug that seals with the sealing tube.

[0018] Furthermore, the top aperture of the blocking tube is smaller than the lower aperture, the sealing plug is threadedly installed on the top of the inner hole of the blocking tube, the bottom of the sealing plug is connected to an elastic spherical thin-walled part, and the side wall of the lower inner hole of the blocking tube is processed with multiple water-stop ring grooves that are compatible with the elastic spherical thin-walled part;

[0019] A sealing part is provided inside the sealing pipe below the water-stop ring groove. The sealing part includes two PE films. One end of the two PE films are fixedly installed on the two opposite inner walls of the sealing pipe, and the other ends of the two PE films are electrostatically adsorbed together.

[0020] Furthermore, the outlet pipe and water pump of the reversing assembly are installed inside the water reservoir, and a cooling box is also provided in the water reservoir, a water inlet is provided on one side of the top of the cooling box, the water inlet is correspondingly located below the outlet pipe, a water outlet is provided on the other side of the bottom of the cooling box opposite to the water inlet, and a stepped cooling plate extending from the bottom of the water inlet to the side of the water outlet is provided inside the cooling box, and an air cooling assembly is installed at the bottom of the stepped cooling plate; the height of each horizontal section of the stepped cooling plate close to the water inlet is lower than the height of the side close to the water outlet.

[0021] Furthermore, the outside of the joints of adjacent supporting aluminum molds are provided with anti-hemp surface components, which include a mounting plate, an adjusting screw, a rubber and an extruded piece. The mounting plate is fixedly mounted on the outside of the joint angles of the adjacent supporting aluminum molds, the adjusting screw passes through and is threadedly mounted on the mounting plate, and a screw sleeve is installed on the outside of the screw; the rubber is mounted on the side of the mounting plate close to the supporting aluminum mold, one end of the extruded piece is rotatably mounted on the outside of the screw sleeve, and the other end is adapted to the rubber for pressing the rubber to fit the outside of the joint of the supporting aluminum mold.

[0022] Furthermore, two groups of extrusion parts are installed on the outside of the screw sleeve, and each group of extrusion parts includes extrusion rod 1 and extrusion rod 2. One end of extrusion rod 1 and extrusion rod 2 is rotatably installed on the outside of the screw sleeve, and the other end is rotatably installed with an extrusion body that matches the rubber, and an elastomer is connected between the two extrusion bodies. The movement of the screw sleeve along the adjusting screw is used to drive the extrusion parts to press the rubber tightly against the outside of the supporting aluminum mold and extrude the concrete on the outside of the rubber.

[0023] The present invention also provides a method for installing the above-mentioned large-volume concrete curing and supporting device, comprising the following steps:

[0024] Lay the concrete pad inside the foundation pit and level it;

[0025] Tie the steel mesh of the massive concrete cap structure, install the cooling main pipe on it while tying the steel mesh, install the second temperature measuring element at the end of the cooling main pipe, install the first temperature measuring element on the steel mesh according to the preset point after finite element analysis, and tie the blocking pipe to the steel mesh and fix it at the preset point;

[0026] Install the supporting aluminum formwork on the concrete cushion layer, fix the mounting plate on the outside of the joint of two adjacent supporting aluminum formworks, and adjust the adjusting screw so that the extrusion body presses the rubber to the side end of the supporting aluminum formwork;

[0027] The cooling main pipe is connected to the branch pipe through a connecting assembly, and then the through holes on the supporting aluminum mold are sealed by inflating air into the airbag. Finally, the branch pipe is connected to the water tank through a pipeline.

[0028] The present invention also provides a forming and curing method of a large-volume concrete curing and supporting device, which uses the above-mentioned curing and supporting device and specifically includes the following steps:

[0029] Pour concrete into the inner area enclosed by the supporting aluminum formwork;

[0030] After pouring is completed, the screw sleeve is driven gradually closer to the joint of the supporting aluminum formwork by adjusting the adjusting screw rod, and the concrete on the outside of the rubber is squeezed back into the inner area of ​​the supporting aluminum formwork through the extrusion piece;

[0031] After the concrete has initially set, the water pump is started. The temperature inside the concrete is monitored by temperature measuring element 1, and the inlet and outlet water temperatures inside the cooling pipe are monitored by temperature measuring element 2. When the difference between the temperature inside the concrete and the inlet water temperature of the cooling pipe exceeds a threshold, the control system controls the water pump to increase the water inlet. When the difference between the inlet and outlet water temperatures inside the cooling pipe exceeds a threshold, the reversing component switches the inlet and outlet water directions. During the reversal, the cooling water inside the branch pipe passes through the one-way diaphragm at the end of the cooling capillary tube and reaches the middle of the concrete before the cooling water inside the branch pipe.

[0032] After the concrete curing is completed, the control system, branch pipe, reversing assembly and supporting aluminum mold are removed, and the inside of the cooling main pipe is grouting treated by grouting equipment, and the sealing plug is sealed on the top of the sealing pipe.

[0033] Compared with the prior art, the technical solution provided by the present invention can achieve the following beneficial effects:

[0034] (1) The present invention arranges multiple groups of cooling pipes in an alternating manner along the height direction of the concrete, and both ends of each group of cooling pipes are connected to the water reservoir through a reversing component. According to the monitoring results of the temperature measuring element 1 and the temperature measuring element 2, the water pump is controlled to increase the water supply, or the inlet and outlet water directions of the cooling pipes are reversed, thereby effectively improving the cooling effect of the concrete and ensuring the uniformity of the concrete cooling. There is no need to use additional cooling equipment to perform special cooling on the inlet and outlet water temperatures, which is energy-saving and low-cost, and is conducive to wide promotion and implementation.

[0035] (2) The present invention optimizes the structure of the cooling pipe and adds a cooling tube inside the heat exchange bellows. Both ends of the cooling tube are provided with a one-way diaphragm, so that the water flow inside the cooling tube can only flow in one direction from the end connected to the branch pipe to the inside of the heat exchange bellows. Therefore, when the water flow is reversed, it can preferentially enter the inside of the heat exchange bellows, which is convenient for timely and effective cooling of the middle space of the concrete.

[0036] (3) In the present invention, both ends of the heat exchange bellows are connected to the branch pipe through a connecting assembly, and the connecting assembly includes an external threaded joint, and the two ends of the external threaded joint are respectively threadedly connected to the branch pipe and the heat exchange bellows, and a groove surrounding the external threaded joint is formed on the external threaded joint corresponding to the outer wall of the supporting aluminum mold, and an air bag is installed in the groove, so that on the one hand, it is convenient for the installation and connection of the heat exchange bellows and the branch pipe, and on the other hand, it can effectively improve the air tightness of the installation through hole between the external threaded joint and the supporting aluminum mold, avoiding the leakage of slurry at this location.

[0037] (4) In the present invention, an upwardly directed plugging pipe is connected to the middle of the heat exchange bellows. After the curing work is completed, the heat exchange bellows and the plugging pipe are grouting-treated by grouting equipment, thereby effectively avoiding hollowing and preventing subsequent shrinkage of the cooling pipe that affects the service strength of the concrete. The present invention further improves the waterproof sealing effect by providing a plugging piece.

[0038] (5) The present invention sets a cooling box inside the water reservoir, and a stepped cooling plate extending from the lower side of the water inlet to the side of the water outlet is provided inside the cooling box. An air cooling component is installed at the bottom of the stepped cooling plate. The cooling water discharged from the cooling pipe flows slowly downward through the stepped cooling plate, and the stepped cooling plate is cooled by the air cooling component (fan), so that the water flowing in from the water inlet is gradually cooled and diluted by the cooling water, so that the water discharged from the cooling pipe is effectively cooled, thereby reducing the temperature difference between the cooling water temperature after heat exchange with the concrete and the water inside the water reservoir, ensuring the consistency of the water temperature inside the water reservoir, and helping to further improve the maintenance cooling effect.

[0039] (6) The present application adopts a supporting aluminum mold, which is used to effectively dissipate heat from the sides of the concrete. At the same time, anti-pitting components are provided on the outside of the joints of adjacent supporting aluminum molds, that is, at the four corners of the supporting aluminum molds. By adjusting the screw, the extrusion body can be gradually moved closer to the joints, so that the concrete is re-extruded to the inside of the area enclosed by the supporting aluminum mold to prevent the pitting phenomenon. Once the pitting phenomenon occurs, stress concentration is likely to occur at that location (during the concrete curing period), which can easily cause cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1This is a schematic diagram of the overall structure of a large-volume concrete curing and supporting device according to an embodiment of the present invention;

[0041] Figure 2 This is a schematic diagram of the installation structure of a heat exchange bellows according to an embodiment of the present invention;

[0042] Figure 3 for Figure 2 A partial enlarged view of point B in the middle;

[0043] Figure 4 for Figure 2 A schematic diagram of the top enlarged structure of the middle plugging tube;

[0044] Figure 5 for Figure 2 A top view of the middle sealing plug;

[0045] Figure 6 This is a schematic diagram of the structure after the plugging pipe is sealed in one embodiment of the present invention;

[0046] Figure 7 This is a schematic diagram of the structure of the plugging tube during plugging in one embodiment of the present invention;

[0047] Figure 8 This is a schematic diagram of the internal structure of a cooling box according to an embodiment of the present invention;

[0048] Figure 9 for Figure 1 A partial enlarged view of point A in the middle;

[0049] Figure 10 for Figure 9 A magnified view of the structure of the middle anti-numbing surface component;

[0050] Figure 11 1 is a control principle diagram of a control system in one embodiment of the present invention.

[0051] In the figure: 1. Supporting aluminum mold; 2. Water reservoir; 3. Cooling pipe; 31. Cooling main pipe; 32. Branch pipe; 33. Cooling capillary; 34. One-way diaphragm; 4. Connecting assembly; 41. External threaded joint; 42. Air bag; 43. Groove; 5. Sealing pipe; 51. Sealing plug; 52. Elastic spherical thin-walled part; 53. Water stop ring groove; 54. Sealing part; 6. Solenoid four-way valve; 7. Water supply pump; 8. Water outlet pipe; 9. Cooling box; 91. Water inlet; 92. Step cooling plate; 93. Water outlet; 94. Air cooling assembly; 10. Mounting plate; 101. Fixing plate; 102. Adjusting screw; 103. Sleeve; 104. Extrusion part; 105. Extrusion rod one; 106. Extrusion rod two; 107. Rubber; 108. Elastomer; 109. Extrusion body. DETAILED DESCRIPTION

[0052] In order to further understand the content of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and embodiments. Among them, the structure, proportion, size, etc. illustrated in the drawings of this specification are only used to match the content disclosed in the specification, so that people familiar with this technology can understand and read, and are not used to limit the limiting conditions that the present invention can implement, so they have no technical substantive significance. Any modification of the structure, change of the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effect that the present invention can produce and the purpose that can be achieved. At the same time, the terms such as "upper", "lower", "left", "right", "middle" etc. quoted in this specification are also only for the convenience of narration, and are not used to limit the scope that can be implemented. The change or adjustment of its relative relationship should also be regarded as the scope that the present invention can implement without substantially changing the technical content.

[0053] like Figure 1 、 Figure 11 As shown, one embodiment of the present invention provides a large-volume concrete curing and supporting device, which can be used for pouring, shaping and curing concrete at the same time, specifically including:

[0054] The supporting aluminum formwork 1 is installed on the periphery of the concrete, which surrounds the concrete pouring and curing space. At the same time, the supporting aluminum formwork 1 can also perform preliminary cooling treatment on the side of the concrete;

[0055] There are multiple groups of cooling pipes 3 staggered up and down along the height direction of the concrete. Both ends of each group of cooling pipes 3 are inserted and supported on the corresponding supporting aluminum formwork 1 and connected to the water reservoir 2. Cooling water is introduced into the cooling pipes 3 through the water reservoir 2 to cool the concrete.

[0056] Temperature measuring elements, including temperature measuring element 1 and temperature measuring element 2. Temperature measuring element 1 is pre-buried in the concrete to monitor the temperature inside the concrete. Temperature measuring element 2 is installed at both ends of each cooling pipe 3 to monitor the inlet and outlet water temperatures of the cooling pipe 3.

[0057] A reversing assembly is installed on the connecting pipes between the two ends of each cooling pipe 3 and the water reservoir 2, and is used to reverse the cooling water inlet direction of the cooling pipe 3. Furthermore, the reversing assembly in one embodiment of the present invention includes an electromagnetic four-way valve 6, and the four reversing ports of the electromagnetic four-way valve 6 are respectively connected to the two end ports of the cooling pipe 3 and the water supply pump 7 and the water outlet pipe 8 through pipes, and the water supply pump 7 and the water outlet pipe 8 are installed in the water reservoir 2 or connected to the water reservoir 2.

[0058] The control system is connected to the temperature measuring element 1, the temperature measuring element 2, the water pump 7 and the reversing component. The temperature measuring element 1 is used to monitor the internal temperature of the concrete, and the temperature measuring element 2 is used to monitor the inlet and outlet water temperature difference of the cooling pipe 3. The temperature values ​​monitored by the temperature measuring elements are fed back to the control system to control the water supply volume of the water pump 7 and the inlet and outlet water directions of the cooling pipe 3, thereby realizing automatic temperature control processing.

[0059] Specifically, when the difference between the temperature inside the concrete monitored by temperature measuring element 1 and the temperature at the water inlet end of the cooling pipe 3 monitored by temperature measuring element 2 is greater than a set threshold, for example, when the temperature difference is greater than 15°C, the control system controls the water pump 7 to increase the water supply; when the difference between the inlet and outlet water temperatures at both ends of the cooling pipe 3 monitored by temperature measuring element 2 is greater than a set threshold, for example, greater than 3°C, the control system controls the electromagnetic four-way valve 6 to switch the inlet and outlet directions of the cooling pipe 3. Due to the threshold setting of the inlet and outlet water temperatures, it is easy to accurately control the cooling accuracy. By automatically switching the inlet and outlet water directions, it is possible to effectively dissipate heat in the middle of the large volume of concrete, preventing the problem of cracks in the large volume of concrete caused by untimely heat dissipation.

[0060] As a further improvement of the embodiment of the present invention, in order to reduce the influence of the water temperature after cooling the concrete on the water temperature inside the reservoir 2, Figure 1 、 Figure 8 A cooling box 9 is also provided in the water reservoir 2. A water inlet 91 is provided on one side of the top of the cooling box 9 (a top plate is provided on the top, and a water inlet 91 is provided on one side of the top plate). The water inlet 91 is located correspondingly below the outlet pipe 8. A water outlet 93 is provided on the other side of the bottom of the cooling box 9 opposite to the water inlet 91. A stepped cooling plate 92 is provided inside the cooling box 9, extending from the bottom of the water inlet 91 to the side of the water outlet 93. An air cooling component 94 is installed at the bottom of the stepped cooling plate 92. After cooling the concrete, the cooling water is discharged through the outlet pipe 8. After entering the cooling box 9 through the water inlet 91, it flows slowly downward along the stepped cooling plate 92. Under the action of the air cooling component 94, the stepped cooling plate 92 and the water flow above it can be gradually diluted and cooled, and then flow into the water reservoir 2 through the water outlet 93 for recycling. As a further improvement, the height of each horizontal section of the stepped cooling plate 92 near the water inlet 91 is lower than the height of the side near the water outlet 93, thereby reducing the water flow rate and further ensuring the cooling effect of the cooling water.

[0061] As a further improvement of the embodiment of the present invention, Figure 2 、 Figure 3 As shown, each group of cooling pipes 3 includes:

[0062] The cooling main pipe 31 is composed of a number of heat exchange corrugated pipes spaced parallel to each other inside the concrete, and both ends of the heat exchange corrugated pipes are inserted and supported on the supporting aluminum mold 1;

[0063] The branch pipe 32 is located outside the supporting aluminum mold 1 and is connected to the ends of each heat exchange bellows. One end of the branch pipe 32 is closed and the other end is connected to the reversing assembly.

[0064] One end of the cooling tube 33 is installed inside the branch tube 32, and the other end is inserted into the interior of the heat exchange bellows and close to the top of the heat exchange bellows. Both ends of the cooling tube 33 are provided with a one-way diaphragm 34, which is used to allow the internal water flow of the cooling tube 33 to flow in one direction from the end connected to the branch tube 32 to the interior of the heat exchange bellows.

[0065] By pre-embedding the heat exchange bellows within the concrete, cooling water is delivered by the water pump 7 after the concrete initially sets to remove heat from the concrete. When the direction is switched, the one-way diaphragm 34 on the cooling capillary 33 provides unidirectional flow, allowing the cooling water inside the cooling capillary 33, which is in the water-inflowing state, to enter the central area of ​​the concrete at a low resistance and relatively fast speed, achieving a highly efficient cooling and curing effect, thereby improving cooling accuracy and curing effectiveness. Furthermore, the cooling capillary 33 is inserted and socketed within the heat exchange bellows at a position 1 / 4 to 1 / 2 of the way through.

[0066] As a further improvement of the embodiment of the present invention, Figure 2 As shown, both ends of the heat exchange bellows are connected to the branch pipe 32 through a connecting assembly 4. As one embodiment of the present invention, the connecting assembly 4 includes an external threaded joint 41. A through hole matching the external threaded joint 41 is processed on the supporting aluminum mold 1. The external threaded joint 41 is installed in the through hole, and its two ends are respectively threadedly connected to the branch pipe 32 and the heat exchange bellows, thereby facilitating the threaded installation and connection of the branch pipe 32 and the heat exchange bellows. In order to further prevent leakage at the connection between the supporting aluminum mold 1 and the external threaded joint 41, a groove 43 surrounding the external threaded joint 41 is formed on the external threaded joint 41 corresponding to the outer wall of the supporting aluminum mold 1, and an air bag 42 is installed in the groove 43. Before pouring concrete, air is supplied to the inside of the air bag 12 so that the air bag 12 is sealed to the outside of the through hole, thereby sealing the through hole on the supporting aluminum mold 1 to prevent leakage of slurry.

[0067] After the curing work is completed, the cooling pipe 31 inside the concrete cannot be removed and usually needs to be grouting. In the past, hollowing phenomenon was prone to occur during grouting, resulting in poor grouting density. In the later stage, it is easy to cause internal pipe shrinkage, affecting the strength of the concrete structure. Figure 2As shown, as a further improvement of the embodiment of the present invention, the middle part of the heat exchange bellows is connected to a plugging pipe 5 arranged upward, and a sealing plug 51 that is sealed with the plugging pipe 5 is detachably installed on the top of the plugging pipe 5, and slurry is introduced into the heat exchange bellows and the plugging pipe 5 at the same time through both ends of the heat exchange bellows. The provision of the plugging pipe 5 can, on the one hand, improve the sealing effect of the bellows and prevent the subsequent hollowing phenomenon; on the other hand, it can also effectively improve the cooling effect of the vertical middle concrete. The middle height of the above-mentioned heat exchange bellows is lower than the height of its two ends or the overall horizontal layout (the overall horizontal layout in the figure). When a structure with high ends and low middle is adopted, it is convenient to carry out the plugging grouting treatment.

[0068] As a specific embodiment of the present invention, Figure 4 、 Figure 5 As shown, the inner hole of the blocking tube 5 is processed into a stepped hole structure, the top hole diameter of which is smaller than the bottom hole diameter, and the sealing plug 51 is threadedly installed on the top of the inner hole of the blocking tube 5 (the hole diameter of the sealing plug 51 is adapted to the top hole diameter of the blocking tube 5), and the bottom is connected by a thin sheet ( Figure 5 The sealing plug 51 is connected to the sealing tube 5 (as shown by the dotted circular line in the figure), and the side wall of the lower inner hole of the sealing tube 5 is processed with a water-stop ring groove 53 that is compatible with the elastic spherical thin-walled part 52. The cooperation between the elastic spherical thin-walled part 52 and the water-stop ring groove 53 can ensure the sealing performance of the sealing plug 51 and the sealing tube 5. During maintenance, the sealing plug 51 is installed inside the sealing tube 5 through internal and external threads, and the elastic spherical thin-walled part 52 is located above the water-stop ring groove 53. Furthermore, the outer surfaces of the heat exchange bellows and the sealing tube 5 are provided with a soft silicone heat-conducting layer, and the friction force thereof is used to overcome the friction force of the pipeline caused by the temperature difference.

[0069] As a further improvement of the embodiment of the present invention, a sealing member 54 is provided inside the sealing tube 5 below the water-stop ring groove 53. The sealing member 54 is used to further improve the waterproof effect. It includes two pieces of PE films. One end of the two pieces of PE films are fixedly installed on the two opposite inner walls of the sealing tube, and the other ends of the two pieces of PE films are electrostatically adsorbed together. Figure 6 、 Figure 7When in use, first connect the two ends of the heat exchange bellows to the grouting equipment and perform grouting treatment at the same time until the slurry is discharged from the sealing piece, clean the slurry on the inside of the PE film, and clean the outside. By utilizing the unidirectional conduction effect of the sealing piece, it can be reversed to the inside of the sealing pipe 5, and under the action of the slurry, the PE film is forced to be in a multi-channel twisted structure to form a vertical upward waterproof structure. After the slurry is initially solidified, the micro-expansion mortar is filled from the top of the sealing pipe 5. By first tightening the sealing plug 51 downward and then screwing it upward, the sealing plug 51 can be sealed to the top of the sealing pipe 5. The micro-expansion mortar will push up the elastic spherical thin-walled part 52, thereby further improving the fitting strength of the water-stop ring groove 53 and the elastic spherical thin-walled part 52, completing the waterproof and dense sealing effect, and preventing the heat exchange bellows from thermal expansion and contraction inside the concrete to damage the concrete structure.

[0070] As a further improvement of the embodiment of the present invention, Figure 1 、 Figure 9 、 Figure 10 As shown, the outer sides of the joints of adjacent supporting aluminum molds 1 are provided with anti-hemp surface components, which include a mounting plate 10, an adjusting screw 102, a rubber 107 and an extrusion 104. The mounting plate 10 is fixedly installed on the outer sides of the joint angles of the adjacent supporting aluminum molds 1, and the adjusting screw 102 passes through and is threadedly installed on the mounting plate 10, and a screw sleeve 103 is installed on the outside of the screw; the rubber 107 is installed on the side of the mounting plate 10 close to the supporting aluminum mold 1, and one end of the extrusion 104 is rotatably installed on the outer side of the screw sleeve 103, and the other end thereof is adapted to the rubber 107. When the screw sleeve 103 is driven by the adjusting screw 102 to move close to the direction of the concrete, the rubber 107 is pressed to fit the outer side of the joint of the supporting aluminum mold 1 under the action of the extrusion 104, and the concrete on the outer side of the rubber 107 is pressed back into the casting area enclosed by the supporting aluminum mold 1.

[0071] As a further improvement of the embodiment of the present invention, two groups of extrusion parts 104 are installed on the outside of the screw sleeve 103, and each group of extrusion parts 104 includes an extrusion rod 105 and an extrusion rod 106. One end of the extrusion rod 105 and the extrusion rod 106 are rotatably installed on the outside of the screw sleeve 103, and the other end thereof is rotatably installed with an extrusion body 109 that fits the rubber 107, and an elastomer 108 is connected between the two extrusion bodies 109. The movement of the screw sleeve 103 along the adjusting screw 102 can drive the extrusion body 109 to press the rubber 107 tightly against the outer end of the supporting aluminum mold 1, and extrude the concrete on the outside of the rubber 107.

[0072] Specifically, by adjusting the rotation of the adjusting screw, the screw sleeve 103 can be driven close to the splicing seam, thereby increasing the angle between each group of extrusion rod 1 105 and extrusion rod 2 106. At the same time, the extrusion rod 105 gradually approaches the splicing seam, and then the concrete on the outside of the rubber 107 is squeezed back into the area enclosed by the supporting aluminum plate 1. The extrusion body 109 will press the rubber 107 to the end face of the supporting aluminum plate 1. At the same time, the extrusion body 109 on the extrusion rod 105 will squeeze the concrete on the outside of the rubber inward to prevent leakage of slurry at the splicing.

[0073] Another embodiment of the present invention provides a method for installing the above-mentioned large-volume concrete curing and supporting device, comprising the following steps:

[0074] Lay the concrete pad inside the foundation pit and level it;

[0075] Tie the steel mesh of the massive concrete cap structure, install the cooling main pipe 31 on it while tying the steel mesh, install the second temperature measuring element at the end of the cooling main pipe 31, install the first temperature measuring element on the steel mesh according to the preset point after finite element analysis, and tie the blocking pipe 35 to the steel mesh and fix it at the preset point;

[0076] Pop up the installation edge line of the supporting aluminum formwork 1 on the concrete cushion layer, install the supporting aluminum formwork 1 and fix it with galvanized steel pipe support, fix the installation plate 10 on the outside of the joint of two adjacent supporting aluminum formworks 1, and adjust the adjusting screw 102 so that the extrusion body 109 presses the rubber 107 on the side end of the supporting aluminum formwork 1;

[0077] The cooling main pipe 31 is connected to the branch pipe 32 through the connecting component 4, and then the air bag 12 is inflated to complete the sealing of the through hole on the supporting aluminum mold 1. Finally, the water reservoir 2 is installed and the water pump 7 and the water outlet pipe 8 are installed in the water reservoir 2. The branch pipe 32, the electromagnetic four-way valve, the water pump 7 and the water outlet pipe 8 are connected through the pipeline, and the cooling box 9 is installed inside the water reservoir 2 and below the water outlet pipe 8.

[0078] An anti-seepage membrane is laid on the top of the concrete cushion and the inner side of the water reservoir 2, and the anti-seepage membrane is partially pressed onto the bottom of the supporting aluminum formwork 1 through a foam strip.

[0079] Another embodiment of the present invention provides a method for forming and curing a large-volume concrete curing and supporting device, which uses the curing and supporting device and specifically includes the following steps:

[0080] Pour concrete into the inner area enclosed by the supporting aluminum formwork 1, vibrating while pouring;

[0081] After pouring is completed, the screw sleeve 103 is driven gradually closer to the joint of the supporting aluminum form 1 by adjusting the adjusting screw 102, and the concrete on the outside of the rubber 107 is squeezed back into the inner area of ​​the supporting aluminum form 1 through the extrusion piece 104;

[0082] Connect the circuits of the control system, water supply pump 7, electromagnetic four-way valve 6, temperature measuring element 1, temperature measuring element 2, and air cooling assembly 94; a sealing plug 51 can be temporarily installed on the top of the sealing tube 5 to complete the temporary sealing process, and the elastic spherical thin-walled part 52 is located above the water stop ring groove 53 or is installed on the top internal thread of the sealing tube 5 using a rubber plug or bolt.

[0083] After the concrete has initially set, the water pump 7 is started. Temperature measuring element 1 monitors the temperature inside the concrete, and temperature measuring element 2 monitors the inlet and outlet temperatures inside the cooling pipe 3. When the temperature difference between the concrete's internal temperature and the inlet temperature of the cooling pipe 3 exceeds a threshold, the control system controls the water pump 7 to increase the water flow. When the temperature difference between the inlet and outlet temperatures inside the cooling pipe 3 exceeds a threshold, the reversing assembly switches the inlet and outlet directions. During the reversal, the cooling water inside the branch pipe 32 passes through the one-way diaphragm 34 at the end of the cooling capillary 33 and reaches the middle of the concrete before the cooling water inside the branch pipe 32. The water discharged from the outlet pipe 8 passes through the water inlet 91 of the cooling box 9 and reaches the stepped cooling plate 92. The water flowing through the stepped cooling plate 92 is cooled by the air cooling assembly 94 and then re-enters the water reservoir 2 after treatment.

[0084] After the concrete curing is completed, the control system, branch pipe 32 , reversing assembly and supporting aluminum mold 1 are removed, and the interior of the cooling main pipe 31 is grouting treated by grouting equipment, and the sealing plug 36 is sealed on the top of the blocking pipe 35 .

[0085] Remove the control system, branch pipe 32, water pump 7, electromagnetic four-way valve, water reservoir 2 and supporting aluminum mold 1, and remove the sealed part on the top of the sealing pipe 5. Use grouting equipment to grout the inside of the internal heat exchange bellows, fill the internal threaded hole with micro-expansion mortar, and first tighten the sealing plug downward and then screw it upward so that the sealing plug blocks the water stop ring groove and the elastic spherical thin-walled part is sealed on the top inner side of the sealing pipe.

[0086] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A large volume concrete curing and supporting device, characterized in that: include: A supporting aluminum formwork (1) is installed on the periphery of the concrete to form a concrete pouring and curing space; A plurality of cooling pipes (3) are staggeredly arranged along the height direction of the concrete, and both ends of each cooling pipe (3) are inserted and supported on the corresponding supporting aluminum mold (1) and are connected to the water reservoir (2); A reversing assembly is installed on the connecting pipes between the two ends of each cooling pipe (3) and the water reservoir (2), and is used to reverse the inlet direction of the cooling water of the cooling pipe (3), and a water supply pump (7) is connected to the inlet pipe of the reversing assembly; The temperature measuring element comprises a first temperature measuring element and a second temperature measuring element, wherein the first temperature measuring element is embedded in the concrete and is used to monitor the temperature inside the concrete, and the second temperature measuring element is installed at both ends of each cooling pipe (3) and is used to monitor the inlet and outlet water temperatures of the cooling pipe (3); and A control system is connected to the first temperature measuring element, the second temperature measuring element, the water supply pump (7) and the reversing component, and is used to control the water supply amount of the water supply pump (7) and the reversing of the reversing component; Wherein, each group of cooling pipes (3) comprises: The cooling main pipe (31) is composed of a plurality of heat exchange corrugated pipes distributed in parallel and spaced apart inside the concrete, and both ends of the heat exchange corrugated pipes are inserted and supported and installed on the supporting aluminum mold (1). A branch pipe (32) is located outside the supporting aluminum mold (1) and is in corresponding communication with the end of the heat exchange bellows, and one end of the branch pipe (32) is closed, and the other end is connected to the reversing assembly; The cooling tube (33) has one end installed inside the branch tube (32) and the other end inserted into the interior of the heat exchange bellows and close to the top of the heat exchange bellows. Both ends of the cooling tube (33) are provided with a one-way diaphragm (34) for allowing the internal water flow of the cooling tube (33) to flow in one direction from the end connected to the branch tube (32) to the interior of the heat exchange bellows.

2. The large volume concrete curing and supporting device according to claim 1, characterized in that: Both ends of the heat exchange bellows are connected to the branch pipe (32) through a connecting assembly (4); the connecting assembly (4) includes an external threaded joint (41); a through hole matching the external threaded joint (41) is processed on the supporting aluminum mold (1); the external threaded joint (41) is installed in the through hole, and its two ends are respectively threadedly connected to the branch pipe (32) and the heat exchange bellows; a groove (43) surrounding the external threaded joint (41) is formed on the external threaded joint (41) corresponding to the outer side wall of the supporting aluminum mold (1), and an air bag (42) is installed in the groove (43).

3. The mass concrete curing and supporting device according to claim 2, characterized in that: The cooling capillary tube (33) is inserted into the 1 / 4 to 1 / 2 position of the inner portion of the heat exchange bellows. The middle portion of the heat exchange bellows is lower than the height of both ends or is arranged horizontally as a whole. The middle portion of the heat exchange bellows is connected to a sealing tube (5) arranged upward. The top of the sealing tube (5) is detachably installed with a sealing plug (51) that seals with the sealing tube (5).

4. The mass concrete curing and supporting device according to claim 3, characterized in that: The top aperture of the blocking tube (5) is smaller than the bottom aperture, the sealing plug (51) is threadedly mounted on the top of the inner hole of the blocking tube (5), the bottom of which is connected to an elastic spherical thin-walled part (52), and the side wall of the lower inner hole of the blocking tube (5) is processed with a water-stop ring groove (53) adapted to the elastic spherical thin-walled part (52); A sealing member (54) is further provided inside the sealing tube (5) below the water-stop ring groove (53). The sealing member (54) comprises two PE films, one end of each of which is fixedly mounted on two opposite inner side walls of the sealing tube, and the other ends of each of the two PE films are electrostatically adsorbed together.

5. The mass concrete curing and supporting device according to any one of claims 1 to 4, characterized in that: The outlet pipe (8) and the water pump (7) of the reversing assembly are both installed inside the water reservoir (2), and a cooling box (9) is also provided inside the water reservoir (2). A water inlet (91) is provided on one side of the top of the cooling box (9), and the water inlet (91) is located correspondingly below the outlet pipe (8). A water outlet (93) is provided on the other side of the bottom of the cooling box (9) opposite to the water inlet (91). A stepped cooling plate (92) extending from the lower side of the water inlet (91) to the side of the water outlet (93) is provided inside the cooling box (9), and an air cooling assembly (94) is installed at the bottom of the stepped cooling plate (92); the height of each horizontal section of the stepped cooling plate (92) close to the water inlet (91) is lower than the height of the side close to the water outlet (93).

6. The mass concrete curing and supporting device according to any one of claims 1 to 4, characterized in that: The outer sides of the joints of adjacent supporting aluminum molds (1) are each provided with an anti-hemp surface assembly, the anti-hemp surface assembly comprising a mounting plate (10), an adjusting screw (102), a rubber (107) and an extrusion piece (104), the mounting plate (10) being fixedly mounted on the outer sides of the joint angles of the adjacent supporting aluminum molds (1), the adjusting screw (102) passing through and being threadedly mounted on the mounting plate (10), and a screw sleeve (103) being mounted on the outer side of the screw; the rubber (107) being mounted on a side of the mounting plate (10) close to the supporting aluminum mold (1), one end of the extrusion piece (104) being rotatably mounted on the outer side of the screw sleeve (103), and the other end of the extrusion piece (104) being adapted to the rubber (107) for pressing the rubber (107) to fit the outer side of the joints of the supporting aluminum mold (1).

7. The mass concrete curing and supporting device according to claim 6, characterized in that: Two groups of extrusion pieces (104) are installed on the outside of the screw sleeve (103), and each group of extrusion pieces (104) includes an extrusion rod 1 (105) and an extrusion rod 2 (106). One end of the extrusion rod 1 (105) and the extrusion rod 2 (106) are both rotatably installed on the outside of the screw sleeve (103), and the other end thereof is rotatably installed with an extrusion body (109) that fits the rubber (107). An elastic body (108) is connected between the two extrusion bodies (109). The movement of the screw sleeve (103) along the adjusting screw (102) is used to drive the extrusion piece (104) to press the rubber (107) tightly against the outside of the supporting aluminum mold (1) and extrude the concrete on the outside of the rubber (107).

8. A method for installing a mass concrete curing and supporting device according to any one of claims 1 to 7, characterized in that: The following steps are involved: Lay the concrete pad inside the foundation pit and level it; Tie the steel mesh of the large-volume concrete foundation structure, install the cooling main pipe (31) on it while the steel mesh is tied, install the second temperature measuring element at the end of the cooling main pipe (31), install the first temperature measuring element on the steel mesh according to the preset point after finite element analysis, and tie the blocking pipe (5) to the steel mesh and fix it at the preset point; A supporting aluminum mold (1) is installed on the concrete cushion layer, a mounting plate (10) is fixed on the outer side of the joint of two adjacent supporting aluminum molds (1), and an adjusting screw (102) is adjusted so that the extrusion body (109) presses the rubber (107) to the side end of the supporting aluminum mold (1); The cooling main pipe (31) is connected to the branch pipe (32) through a connecting assembly (4), and then the through hole on the supporting aluminum mold (1) is sealed by inflating the air bag (42). Finally, the branch pipe (32) is connected to the water reservoir (2) through a pipeline.

9. A forming and curing method of a large volume concrete curing and supporting device, characterized in that: The maintenance and support device according to claim 1 specifically comprises the following steps: pouring concrete into the inner area enclosed by the supporting aluminum formwork (1); After the pouring is completed, the screw sleeve (103) is driven to gradually approach the joint of the supporting aluminum mold (1) by adjusting the adjusting screw (102), and the concrete on the outside of the rubber (107) is squeezed back into the interior of the enclosed area of ​​the supporting aluminum mold (1) through the extrusion piece (104); After the concrete has initially set, the water pump (7) is started, the temperature inside the concrete is monitored by the first temperature measuring element, and the inlet and outlet water temperatures inside the cooling pipe (3) are monitored by the second temperature measuring element. When the difference between the temperature inside the concrete and the inlet water temperature of the cooling pipe (3) exceeds a threshold value, the water pump (7) is controlled by the control system to increase the water inlet amount. When the difference between the inlet and outlet water temperatures inside the cooling pipe (3) exceeds a threshold value, the inlet and outlet water directions are switched by the reversing component. During the reversal, the cooling water inside the branch pipe (32) reaches the middle of the concrete before the cooling water inside the branch pipe (32) via the one-way diaphragm (34) at the end of the cooling capillary (33). After the concrete curing is completed, the control system, branch pipe (32), reversing assembly and supporting aluminum mold (1) are removed, and the interior of the cooling main pipe (31) is grouting treated by grouting equipment, and the sealing plug (36) is sealed on the top of the sealing pipe (35).

Images