Large-volume concrete curing device with super-long structure

Abstract

The invention relates to the technical field of mass concrete curing, in particular to an ultra-long structure mass concrete curing device which comprises a curing shed and a steam spraying device, a reciprocating assembly is arranged at the top in the curing shed, a telescopic pipe is arranged on the reciprocating assembly, and an air spraying assembly is arranged at the telescopic end of the telescopic pipe; the steam spraying device communicates with the air spraying assembly through a telescopic pipe, lifting sliding rails are symmetrically arranged at the top in the curing shed, and the air spraying assembly moves up and down while reciprocating through the lifting sliding rails; the air injection assembly comprises an arc-shaped pipe matched with a to-be-cured concrete structure, the inner ring of the arc-shaped pipe communicates with a pressurizing pipe, and the pressurizing pipe is provided with an arc-shaped nozzle along the inner ring; by arranging the air injection assembly with the composite motion capacity and combining the optimally-designed nozzle structure and the rotary turbulent flow device, efficient, uniform and rapid distribution of high-temperature steam in the curing shed is achieved, and the heating uniformity and the curing efficiency of a concrete structure in the curing process are improved.

Description

Technical Field

[0001] This invention relates to the field of large-volume concrete curing technology, and more specifically, to a large-volume concrete curing device with an ultra-long structure. Background Technology

[0002] In large-scale infrastructure projects, in order to ensure the strength and durability of concrete, it is necessary to strictly control the temperature and humidity conditions during the hardening process. Steam curing is generally used to cure large concrete to prevent cracking.

[0003] In existing technologies, steam curing of large-volume concrete structures typically involves placing the components in a closed curing chamber and injecting high-temperature steam into the chamber through nozzles. However, this method has significant drawbacks: the steam mainly relies on natural diffusion to fill the entire curing chamber, resulting in a slow heating rate and low curing efficiency; at the same time, the poor steam flow within the chamber makes it difficult to form a uniform temperature and humidity field, leading to uneven heating of different parts of the concrete structure and affecting the curing effect and quality consistency.

[0004] Based on this, the present invention discloses a curing device for ultra-long, large-volume concrete structures. Summary of the Invention

[0005] To address the problems of slow heating, uneven temperature and humidity distribution, low curing efficiency, and poor results associated with steam curing methods that rely on natural steam diffusion, this invention provides an ultra-long, large-volume concrete curing device. The device includes a curing shed and a steam spraying system. The curing shed has a reciprocating assembly at the top, a telescopic pipe on the reciprocating assembly, and a jetting assembly at the telescopic end of the telescopic pipe. The steam spraying system is connected to the jetting assembly via the telescopic pipe. A symmetrically arranged lifting slide rail is located at the top of the curing shed, allowing the jetting assembly to move up and down simultaneously via the reciprocating motion of the lifting slide rail.

[0006] To increase the uniformity of spraying by the jet assembly within the curing shed, this invention employs a reciprocating motion of the jet assembly. The reciprocating assembly includes a drive motor fixed to the top of the curing shed, with a bevel gear transmission assembly at the output end of the drive motor. A reciprocating lead screw is rotatably mounted at the center of the top of the curing shed. The drive motor drives the reciprocating lead screw to rotate via the bevel gear transmission assembly. A slider is threaded onto the reciprocating lead screw, and the slider is slidably connected to the top of the curing shed. The fixed end of the telescopic tube is fixedly connected to the bottom of the slider.

[0007] Based on this, in order to achieve both reciprocating and vertical movement of the jet assembly, thereby improving the fluidity and spread rate of steam;

[0008] As a further improvement to this technical solution, slide rods are symmetrically fixed on both sides of the telescopic end of the telescopic tube. The slide rods are slidably connected in the lifting slide rail, which is located on both sides of the telescopic tube. Moreover, the lifting slide rail has a wave-like structure, and the telescopic length of the telescopic end of the telescopic tube is adapted to the height difference between the crest and trough of the lifting slide rail. The length of the lifting slide rail is adapted to the length of the reciprocating threaded area of ​​the reciprocating screw.

[0009] As a further improvement to this technical solution, a conveying pipe is provided on one side of the telescopic pipe, and a winding device is provided at the top of the curing shed. The conveying pipe is wound around the winding device, and the telescopic pipe is connected to the steam spray device through the conveying pipe. That is to say, when the slider drives the jet assembly to run through the telescopic pipe, the conveying pipe wound on the winding device will follow the telescopic pipe to ensure that the telescopic pipe is always connected to the steam spray device through the conveying pipe, thereby allowing the jet assembly to always be connected to the steam spray device.

[0010] In another approach, steam is injected in order to achieve a more uniform and closely conforming high-temperature steam to the concrete structure.

[0011] As a further improvement to this technical solution, the jetting assembly includes an arc-shaped pipe adapted to the concrete to be cured. A pressurizing pipe is connected to the inner circle of the arc-shaped pipe, and an arc-shaped nozzle is provided along the inner circle of the pressurizing pipe. The arc-shaped pipe is connected to the telescopic end of the telescopic pipe. The arc-shaped pipe has a circular structure, and the curvature of the arc-shaped pipe is between 60° and 300°. The cross-section of the pressurizing pipe has an inverted frustum structure, and the width of the arc-shaped nozzle is smaller than the width of the top end of the pressurizing pipe.

[0012] In order to make the steam jet from the arc nozzle have a larger range, improve the steam flow, and increase the coverage area;

[0013] As a further improvement to this technical solution, an installation rod adapted to the structure of the pressure tube is fixed on the pressure tube at the position of the arc-shaped nozzle. Several rotating plates are uniformly connected to the installation rod in a circumferential direction. The height of the rotating plates is adapted to half the width of the arc-shaped nozzle, and a direct injection channel is formed between two adjacent rotating plates.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. In this ultra-long, large-volume concrete curing device, by setting up a reciprocating motion mechanism and a lifting slide rail in a coordinated structure, the jetting component is driven to achieve a composite motion of horizontal reciprocating and vertical undulation during the steam injection process. This causes the steam to form a dynamic disturbance in the curing shed, which significantly improves the fluidity and diffusion speed of the steam. It effectively overcomes the problems of slow heating and uneven distribution caused by natural steam diffusion in the prior art, thereby improving the overall curing efficiency and temperature and humidity consistency.

[0016] 2. In this ultra-long, large-volume concrete curing device, the use of a telescopically connected conveying pipe and a winding device ensures that the jetting assembly remains connected to the steam supply end during movement. This helps to ensure a continuous and stable supply of steam, avoids the phenomenon of local overheating or insufficient steam supply that is easily caused by traditional fixed nozzles, and further improves the uniformity and stability of steam curing.

[0017] 3. In this ultra-long, large-volume concrete curing device, the design of combining an arc-shaped pipe structure with a pressurized pipe and an arc-shaped nozzle accelerates the steam before it enters the nozzle and sprays it evenly along the contour of the concrete surface. This enhances the adhesion and coverage of the steam to the concrete structure, thereby improving the curing effect and increasing the consistency of concrete strength development. Secondly, by setting a rotating plate structure at the arc-shaped nozzle, the high-speed steam drives the rotating plate to rotate, causing the steam to be sprayed out in a wave-like, multi-directional manner. Combined with the direct injection channel, this expands the coverage dimension of the steam and enhances the mixing effect of the steam in space, thus effectively solving the technical problems of poor fluidity and uneven temperature field in existing steam curing methods. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a structural cross-sectional view of the curing shed of the present invention;

[0020] Figure 3 This is a schematic diagram of the reciprocating lead screw of the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of the structure at point A in the middle;

[0022] Figure 5 for Figure 3 Enlarged view of the structure at point B;

[0023] Figure 6 This is a schematic diagram of the jet assembly of the present invention;

[0024] Figure 7 This is a side sectional view of the arc-shaped tube of the present invention;

[0025] Figure 8 for Figure 7 Enlarged view of the structure at point C;

[0026] Figure 9 for Figure 7 Enlarged view of the structure at point D;

[0027] Figure 10 This is a cross-sectional view of the arc-shaped tube of the present invention;

[0028] Figure 11 for Figure 10 Enlarged view of the structure at point E in the middle.

[0029] The meanings of the labels in the diagram are as follows:

[0030] 1. Curing shed; 2. Steam spraying device; 3. Winding device; 4. Conveying pipe; 5. Drive motor; 6. Bevel gear transmission assembly; 7. Reciprocating lead screw; 8. Slider; 9. Telescopic pipe; 10. Air jet assembly; 11. Lifting slide rail; 12. Slide rod;

[0031] 101. Arc-shaped pipe; 102. Pressurized pipe; 103. Arc-shaped nozzle; 104. Mounting rod; 105. Rotating plate; 106. Direct injection channel. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Existing steam curing methods rely on the natural diffusion of steam, resulting in slow heating, uneven temperature and humidity distribution, low curing efficiency, and poor effectiveness.

[0034] Therefore, this invention provides an ultra-long, large-volume concrete curing device. (See below) Figures 1-3 As shown, it includes a curing shed 1 and a steam spraying device 2. The curing shed 1 is equipped with a reciprocating assembly at the top, and a telescopic pipe 9 is installed on the reciprocating assembly. A jet spraying assembly 10 is installed on the telescopic end of the telescopic pipe 9. The steam spraying device 2 is connected to the jet spraying assembly 10 through the telescopic pipe 9. The top of the curing shed 1 is symmetrically equipped with lifting slide rails 11. The jet spraying assembly 10 moves up and down while reciprocating through the lifting slide rails 11.

[0035] During operation, high-temperature steam is sprayed into the curing shed 1 via the steam spray device 2 and the jet assembly 10. The jet assembly 10 reciprocates within the top of the curing shed 1 via a reciprocating assembly, spraying high-temperature steam into the shed 1. The lifting rail 11 adds vertical movement to the jet assembly 10 during its reciprocating motion, achieving multi-dimensional spraying of high-temperature steam. (Refer to...) Figure 2 It can be seen that the structure of the jet assembly 10 allows the steam to be sprayed more evenly, and the linear reciprocating motion plus the up-and-down motion of the jet assembly 10 can increase the fluctuation and fluidity of the high-temperature steam in the curing shed 1, allowing the high-temperature steam to spread more quickly.

[0036] For details, see Figures 3-5 As shown, in order to increase the uniformity of spraying of the jet assembly 10 in the curing shed 1, the present invention adopts the method of making the jet assembly 10 reciprocate. Specifically, the reciprocating assembly includes a drive motor 5 fixed to the top of the curing shed 1, a bevel gear transmission assembly 6 provided at the output end of the drive motor 5, a reciprocating screw 7 rotatably provided at the center position of the top of the curing shed 1, the drive motor 5 drives the reciprocating screw 7 to rotate through the bevel gear transmission assembly 6, a slider 8 is threadedly connected to the reciprocating screw 7, the slider 8 is slidably connected to the top of the curing shed 1, and the fixed end of the telescopic tube 9 is fixedly connected to the bottom of the slider 8.

[0037] When in operation, the drive motor 5 starts and drives the reciprocating screw 7 to rotate through the bevel gear transmission assembly 6. Since the slider 8 is slidably connected to the top of the curing shed 1, the slider 8 moves back and forth on the reciprocating screw 7, which in turn drives the jet assembly 10 to move back and forth.

[0038] Further, see Figures 2-5 As shown, in order to achieve up-and-down movement of the jet assembly 10 during reciprocating motion, thereby improving the fluidity and spread speed of steam, the present invention employs slide rods 12 symmetrically fixed on both sides of the telescopic end of the telescopic tube 9. The slide rods 12 are slidably connected in the lifting slide rail 11, which is located on both sides of the telescopic tube 9. Moreover, the lifting slide rail 11 has a wave-like structure, and the telescopic length of the telescopic end of the telescopic tube 9 is adapted to the height difference between the crests and troughs of the lifting slide rail 11. The length of the lifting slide rail 11 is adapted to the length of the reciprocating threaded area of ​​the reciprocating screw 7.

[0039] During operation, the slider 8 reciprocates on the reciprocating screw 7, which in turn drives the telescopic tube 9 to reciprocate. The telescopic end of the telescopic tube 9 is slidably connected to the lifting slide rail 11 via the slide rod 12. Therefore, the telescopic end of the telescopic tube 9 slides along the lifting slide rail 11. The lifting slide rail 11 has a wave-shaped structure with peaks and troughs, which causes the telescopic end of the telescopic tube 9 to extend and retract, thus driving the jet assembly 10 to reciprocate linearly while simultaneously achieving up-and-down reciprocating motion.

[0040] Furthermore, see Figures 1-2 and Figure 5As shown, in order to maintain communication with the steam spray device 2 during the reciprocating motion of the jet assembly 10 and the telescopic pipe 9, the present invention employs a conveying pipe 4 on one side of the telescopic pipe 9, and a winding device 3 is provided at the top of the curing shed 1. The conveying pipe 4 is wound around the winding device 3, and the telescopic pipe 9 is connected to the steam spray device 2 through the conveying pipe 4. That is to say, when the slider 8 drives the jet assembly 10 to run through the telescopic pipe 9, the conveying pipe 4 wound on the winding device 3 will follow the telescopic pipe 9 to ensure that the telescopic pipe 9 is always connected to the steam spray device 2 through the conveying pipe 4, thereby allowing the jet assembly 10 to always maintain communication with the steam spray device 2.

[0041] For details, see Figures 6-11 As shown, in order to achieve more uniform and closely conforming high-temperature steam injection into the concrete structure, the present invention employs a jet assembly 10 including an arc-shaped pipe 101 adapted to the concrete to be cured. The inner ring of the arc-shaped pipe 101 is connected to a pressurizing pipe 102, and the pressurizing pipe 102 has an arc-shaped nozzle 103 along its inner ring. The arc-shaped pipe 101 is connected to the telescopic end of the telescopic pipe 9. The arc-shaped pipe 101 has a circular structure, and the curvature of the arc-shaped pipe 101 is between 60° and 300°. The cross-section of the pressurizing pipe 102 has an inverted frustum structure, and the width of the arc-shaped nozzle 103 is smaller than the width of the top end of the pressurizing pipe 102.

[0042] During operation, the curvature of the arc-shaped pipe 101 can be selected according to the structure of the concrete, making the entire arc-shaped pipe 101 more adaptable to the concrete structure. After the steam enters the arc-shaped pipe 101, because the inner diameter of the arc-shaped pipe 101 is larger than that of the pressurizing pipe 102, and the arc-shaped nozzle 103 opened in the inner circle of the pressurizing pipe 102 is narrower, the steam will be sprayed faster when it passes through the inner circle of the arc-shaped nozzle 103. At the same time, the structure of the arc-shaped nozzle 103 opened along the inner circle of the pressurizing pipe 102 is adapted to that of the arc-shaped pipe 101, so it can be sprayed more evenly onto the concrete structure. In addition, the arc-shaped pipe 101 is driven by the telescopic pipe 9 to move in both horizontal and vertical dimensions, which allows the steam in the curing shed 1 to spread more quickly, improving the fluidity and uniformity of the steam in the curing shed 1. At the same time, the arc-shaped nozzle 103 is easier to fit into the concrete structure, making the curing efficiency higher.

[0043] It should be noted that, as Figure 8 As shown, the top of the arc-shaped tube 101 has a jacket, and the bottom of the jacket is also provided with several spray holes in a circumferential manner along the inner wall of the top of the arc-shaped tube 101. The telescopic tube 9 communicates with the jacket to evenly spray steam into the interior of the arc-shaped tube 101, and then sprays it out through the arc-shaped nozzle 103.

[0044] Further, see Figures 7-11As shown, in order to make the steam jet from the arc nozzle 103 have a larger jet range, improve the steam flow and coverage area, the present invention adopts a mounting rod 104 that is adapted to the structure of the pressure pipe 102 and fixed on the position of the arc nozzle 103. Several rotating plates 105 are uniformly rotatably connected to the mounting rod 104 in a circumferential direction. The height of the rotating plate 105 is adapted to half the width of the arc nozzle 103, and a direct injection channel 106 is formed between two adjacent rotating plates 105.

[0045] During operation, when high-temperature, high-speed steam is ejected through the arc-shaped nozzle 103, the rotating plate 105 causes the steam to rotate rapidly. This results in the steam being ejected through the arc-shaped nozzle 103 in a wave-like pattern, rather than the traditional direct injection method. This allows the steam ejected from the arc-shaped nozzle 103 to be sprayed in more dimensions and directions, thus expanding the coverage and flow of the steam ejected from the arc-shaped nozzle 103. Furthermore, the direct injection channel 106 between the rotating plates 105 allows some steam to be directly injected through the direct injection channel 106. This ensures that the steam is ejected over a wide area in a wave-like pattern while some steam directly contacts the concrete structure in a direct injection manner.

[0046] In summary, by setting up a jet assembly 10 with composite motion capabilities and its matching steam delivery system, combined with an optimized nozzle structure and rotating turbulence device, high-temperature steam is efficiently, uniformly, and rapidly distributed within the curing shed 1, significantly improving the heating uniformity and curing efficiency of large-volume concrete structures during steam curing. This effectively solves the problems of slow heating, uneven temperature and humidity distribution, low curing efficiency, and poor results associated with existing steam curing methods that rely on natural steam diffusion.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0048] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultra-long structure mass concrete curing device, comprising a curing shed (1) and a steam spraying device (2), characterized in that: The maintenance shed (1) is provided with a reciprocating assembly at the top, the reciprocating assembly is provided with a telescopic pipe (9), the telescopic end of the telescopic pipe (9) is provided with a jet assembly (10), the steam spraying device (2) is communicated with the jet assembly (10) through the telescopic pipe (9), the top of the maintenance shed (1) is symmetrically provided with a lifting slide rail (11), and the jet assembly (10) realizes reciprocating movement and upward and downward movement at the same time through the lifting slide rail (11); The jet assembly (10) comprises an arc-shaped pipe (101) matched with the concrete structure to be maintained, and the arc-shaped pipe (101) is communicated with a pressurizing pipe (102) in the inner ring, and the pressurizing pipe (102) is provided with an arc-shaped nozzle (103) along the inner ring.

2. The super-long structure mass concrete curing device according to claim 1, characterized in that: The reciprocating assembly comprises a driving motor (5) fixedly arranged at the top of the maintenance shed (1), a bevel gear transmission assembly (6) is arranged at the output end of the driving motor (5), a reciprocating screw rod (7) is rotatably arranged at the center position of the top of the maintenance shed (1), the driving motor (5) drives the reciprocating screw rod (7) to rotate through the bevel gear transmission assembly (6), a sliding block (8) is threadedly connected to the reciprocating screw rod (7), and the sliding block (8) is slidably connected to the top of the maintenance shed (1).

3. The super-long structure mass concrete curing apparatus according to claim 2, characterized in that: The fixed end of the telescopic pipe (9) is fixedly connected to the bottom of the sliding block (8), one side of the telescopic pipe (9) is provided with a conveying pipe (4), a winding device (3) is arranged at the top of the maintenance shed (1), the conveying pipe (4) is wound on the winding device (3), and the telescopic pipe (9) is communicated with the steam spraying device (2) through the conveying pipe (4).

4. The super-long structure mass concrete curing apparatus according to claim 3, characterized in that: The telescopic end of the telescopic pipe (9) is symmetrically fixed with a slide rod (12) at both sides of the end, the slide rod (12) is slidably connected in the lifting slide rail (11), and the lifting slide rail (11) is arranged on both sides of the telescopic pipe (9).

5. The super-long structure mass concrete curing apparatus according to claim 4, characterized in that: The lifting slide rail (11) has a wave shape structure, and the telescopic length of the telescopic end of the telescopic pipe (9) is matched with the height difference between the wave crest and the wave trough of the lifting slide rail (11).

6. The super-long structure mass concrete curing apparatus according to claim 5, characterized in that: The arc-shaped pipe (101) is communicated with the telescopic end of the telescopic pipe (9), the arc-shaped pipe (101) has a circular ring structure, the arc of the arc-shaped pipe (101) is between 60°-300°, the cross section of the pressurizing pipe (102) has an inverted circular table structure, and the width of the arc-shaped nozzle (103) is smaller than the width of the top end of the pressurizing pipe (102).

7. The super-long structure mass concrete curing apparatus according to claim 6, characterized in that: The pressurizing pipe (102) is fixedly provided with a mounting rod (104) matched with the structure of the pressurizing pipe (102) at the position of the arc-shaped nozzle (103), and a plurality of rotating plates (105) are uniformly and circumferentially rotatably connected to the mounting rod (104).

8. The super-long structure mass concrete curing apparatus according to claim 7, characterized in that: The height of the rotating plate (105) is matched with half of the width of the arc-shaped nozzle (103).

9. The super-long structure mass concrete curing apparatus according to claim 5, characterized in that: A straight jet channel (106) is formed between adjacent two rotating plates (105).

10. The super-long structure mass concrete curing apparatus according to claim 9, characterized in that: The length of the lifting slide rail (11) is matched with the length of the reciprocating screw thread area of the reciprocating screw rod (7).

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