Heat supply equipment for precast beam steam curing

Abstract

The utility model discloses heat supply equipment for precast beam steam curing, which belongs to the technical field of precast beam curing and comprises a heat supply chamber, a bottom plate is arranged at the bottom of the heat supply chamber, two steam generators are mounted at the top of the bottom plate and positioned on two sides of the heat supply chamber, and the two steam generators are mounted on the bottom plate. The steam generator is arranged in the heat supply chamber, a uniform heat supply mechanism is arranged in the heat supply chamber, and a flow dividing mechanism is arranged between the uniform heat supply mechanism and the steam generator. Through the arrangement of the heat supply nozzles, steam sprayed by the heat supply nozzles can be uniformly dispersed in the heat supply chamber, so that the steam is uniformly contacted with the precast beams, the uniformity of steam coverage is improved, the efficiency of steam curing of the precast beams is improved, and meanwhile, the mounting angles of the heat supply nozzles can be adjusted, so that the heat supply nozzles can adapt to the precast beams of various sizes; and the steam curing effect on the precast beam is improved.

Description

Technical Field

[0001] This utility model relates to the field of precast beam curing technology, and in particular to a heating device for steam curing of precast beams. Background Technology

[0002] In the construction industry, especially in bridge, road and water conservancy projects, precast beams are important structural components whose quality and performance directly affect the safety and durability of the overall project. Traditional precast beam curing methods mainly rely on natural curing, which involves slow hardening by relying on ambient temperature and humidity. This method is greatly affected by weather conditions, has a long curing cycle, and makes it difficult to guarantee the quality stability and performance consistency of precast beams. In order to improve the curing efficiency and quality of precast beams, steam curing technology introduces high-temperature steam to heat and moisturize the precast beams, which can significantly accelerate the hardening process of concrete and improve the strength and durability of precast beams.

[0003] Existing precast beam curing methods typically employ passive insulation curing with wrapping and covering, which has poor insulation and moisture retention effects and is only suitable for precast beam curing when the average temperature over 3 days is above 5°C. When the temperature is lower, construction cannot be carried out, which seriously affects the construction period.

[0004] The existing patent (publication number: CN209665764U) discloses a heat-insulating and moisture-retaining curing shed for precast beam construction in winter. It includes a frame with a movable top plate covering the top, heat-insulating side plates installed on both sides, heat-insulating curtains hanging at both ends of the frame, and a steam generator located outside one end of the frame, through which steam is circulated into the frame via pipes. This utility model covers the precast beams requiring curing within the frame, maintaining the temperature and humidity inside, allowing for curing of the precast beams even in winter and ensuring normal construction during winter.

[0005] To address the aforementioned issues, existing patents have provided solutions, but these solutions cannot ensure that steam is delivered evenly to the precast beams. Existing patents use a steam exhaust pipe to deliver steam at a fixed position, which limits the range of steam delivery and prevents the steam from being delivered evenly to the precast beams. Additionally, the angle of the delivered steam cannot be adjusted.

[0006] Therefore, a heating device for steam curing of precast beams is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide a heating device for steam curing of precast beams, which can solve the problem that existing precast beam curing sheds cannot deliver steam evenly to the precast beams. Existing patents use steam exhaust pipes to deliver steam at fixed positions, which results in a limited range of steam delivery and cannot deliver steam evenly to the precast beams. At the same time, there is a problem that the angle of steam delivery cannot be adjusted.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a heating device for steam curing of precast beams, comprising a heating chamber, a bottom plate at the bottom of the heating chamber, two steam generators installed on the top of the bottom plate, the two steam generators located on both sides of the heating chamber, a uniform heating mechanism inside the heating chamber, and a flow diversion mechanism between the uniform heating mechanism and the steam generators.

[0009] The uniform heating mechanism includes multiple mounting plates installed on the inner walls of both sides of the heating chamber. A drive plate is provided on the top of the mounting plate, and one end of the drive plate is hinged to the mounting plate. A drive groove is provided in the middle of the mounting plate, and a drive motor is bolted to the bottom of the mounting plate. A turntable is fixedly connected to the output end of the drive motor. A drive rod is fixedly connected to the top of the turntable and is movably disposed inside the drive groove. The drive rod is eccentrically disposed on the turntable. A heating nozzle is provided at one end of the drive plate, and an adjustable mounting assembly is provided at the other end of the drive plate.

[0010] Preferably, the adjustable mounting assembly includes a U-shaped frame fixedly connected to one end of the drive plate, a mounting cylinder is provided in the middle of the U-shaped frame, and adjusting screws are fixedly connected to both ends of the mounting cylinder. The adjusting screws pass through the U-shaped frame, and a locking nut is threaded to one end of the adjusting screw. The side wall of the locking nut contacts the U-shaped frame.

[0011] Preferably, the diversion mechanism includes a diversion hood fixedly connected to the output end of the steam generator. Three diversion plates are fixedly connected inside the diversion hood. Three diversion pipes are provided through the side wall of the diversion hood. The diversion plates and diversion pipes are arranged alternately. A telescopic corrugated pipe is provided at the other end of the diversion pipe. The other end of the telescopic corrugated pipe is connected through the heating nozzle.

[0012] Preferably, the top of the mounting cylinder is threaded with a locking screw, and the output end of the locking screw contacts the heating nozzle.

[0013] Preferably, a rotating ring is sleeved on the side wall of the drive rod, and the side wall of the rotating ring contacts the drive groove.

[0014] Preferably, a reinforcing angle is installed at the bottom of the mounting plate, and the side wall of the reinforcing angle is fixedly connected to the heating chamber.

[0015] Preferably, multiple sets of thermometers and hygrometers are installed on the top of the heating chamber, with the hygrometers located on both sides of the thermometers.

[0016] Preferably, the top of the base plate is fixedly connected to two limiting frames, and the limiting frames are provided with multiple rollers inside.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application incorporates a uniform heating mechanism. This process involves driving the heating nozzles to reciprocate in the left and right directions, ensuring that the steam emitted from the heating nozzles is evenly dispersed within the heating chamber. This allows the steam to uniformly contact the precast beams, improving the uniformity of steam coverage and increasing the efficiency of steam curing for the precast beams. Furthermore, the installation angle of the heating nozzles can be adjusted to accommodate precast beams of various sizes, further enhancing the effectiveness of steam curing for the precast beams.

[0019] 2. This application incorporates a diversion mechanism. Through the cooperation of the diversion hood and the diversion plate, the steam delivered by the steam generator to the inside of the diversion hood is evenly diverted, allowing the steam to enter the three diversion pipes evenly and ensuring that the amount of steam delivered by the multiple heating nozzles is uniform, thereby improving the uniformity of precast beam curing. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is an overall structural view of the present invention;

[0022] Figure 2 This is the left view of the present invention;

[0023] Figure 3 This utility model Figure 2 A three-dimensional cross-sectional view at point AA;

[0024] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is the uniform heating mechanism in this utility model.

[0026] Explanation of reference numerals in the attached figures:

[0027] 1. Heating chamber; 2. Base plate; 3. Steam generator; 4. Uniform heating mechanism; 5. Diverting mechanism; 41. Mounting plate; 42. Drive plate; 43. Drive slot; 44. Drive motor; 45. Turntable; 46. Drive rod; 47. Heating nozzle; 48. Adjustable mounting assembly; 481. U-shaped frame; 482. Mounting cylinder; 483. Adjusting screw; 484. Locking nut; 51. Diverting hood; 52. Diverting plate; 53. Diverting pipe; 54. Telescopic corrugated pipe; 6. Locking screw; 7. Rotary ring; 8. Reinforcing angle; 9. Thermometer; 10. Hygrometer; 11. Limiting frame; 12. Roller. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figures 1 to 5 This utility model provides a technical solution:

[0030] A heating device for steam curing of precast beams includes a heating chamber 1, a bottom plate 2 at the bottom of the heating chamber 1, two steam generators 3 installed on the top of the bottom plate 2, the two steam generators 3 located on both sides of the heating chamber 1, a uniform heating mechanism 4 inside the heating chamber 1, and a diversion mechanism 5 between the uniform heating mechanism 4 and the steam generators 3.

[0031] The uniform heating mechanism 4 includes multiple mounting plates 41 installed on the inner walls of both sides of the heating chamber 1. A drive plate 42 is provided on the top of the mounting plate 41. One end of the drive plate 42 is hinged to the mounting plate 41. A drive groove 43 is provided in the middle of the mounting plate 41. A drive motor 44 is bolted to the bottom of the mounting plate 41. A turntable 45 is fixedly connected to the output end of the drive motor 44. A drive rod 46 is movably provided inside the drive groove 43 and fixedly connected to the top of the turntable 45. The drive rod 46 is eccentrically positioned on the turntable 45. A heating nozzle 47 is provided at one end of the drive plate 42. An adjustable mounting assembly 48 is provided at the other end of the drive plate 42.

[0032] Specifically, such as Figure 5 As shown, the adjustable mounting assembly 48 includes a U-shaped frame 481 fixedly connected to one end of the drive plate 42. A mounting cylinder 482 is provided in the middle of the U-shaped frame 481. Adjusting screws 483 are fixedly connected to both ends of the mounting cylinder 482. The adjusting screws 483 pass through the U-shaped frame 481. A locking nut 484 is threadedly connected to one end of the adjusting screw 483. The side wall of the locking nut 484 contacts the U-shaped frame 481.

[0033] Specifically, such as Figure 5 As shown, a locking screw 6 is threadedly connected to the top of the mounting cylinder 482, and the output end of the locking screw 6 contacts the heating nozzle 47.

[0034] Specifically, such as Figure 5 As shown, a rotating ring 7 is sleeved on the side wall of the drive rod 46, and the side wall of the rotating ring 7 is in contact with the drive groove 43.

[0035] Specifically, such as Figure 5 As shown, a reinforcing angle 8 is installed at the bottom of the mounting plate 41, and the side wall of the reinforcing angle 8 is fixedly connected to the heating chamber 1.

[0036] Specifically, such as Figure 3 As shown, multiple sets of thermometers 9 and hygrometers 10 are installed on the top of the heating chamber 1, with the hygrometers 10 located on both sides of the thermometers 9.

[0037] Inside the heating chamber 1, two steam generators 3 are located on either side of the heating chamber 1, responsible for generating steam. The steam is evenly distributed into the interior of the heating chamber 1 through a distribution mechanism 5. The core of the heating mechanism lies in the drive plates 42 on multiple mounting plates 41. These drive plates 42 are connected to the mounting plates 41 by hinges, and each drive plate 42 is equipped with a heating nozzle 47 at one end to evenly spray steam onto the precast beam. The start of the drive motor 44 causes the turntable 45 to rotate. Since the drive rod 46 is eccentrically set on the turntable 45, it reciprocates within the drive groove 43 as the turntable 45 rotates. This reciprocating motion is transmitted to the drive plates 42 through the hinge point, causing the drive plates 42 to swing around the hinge point as an axis, thereby driving the heating nozzles 47 to oscillate and spray steam. This oscillating spraying method ensures a more uniform distribution of steam within the heating chamber 1, avoiding localized areas of steam distribution. In case of overheating or overcooling, the adjustable mounting assembly 48 allows for fine-tuning of the position and angle of the heating nozzle 47. By rotating the adjusting screw 483, the position of the mounting cylinder 482 in the U-shaped frame 481 can be changed, thereby adjusting the horizontal position of the heating nozzle 47. The locking nut 484 is used to fix the adjusting screw 483 to ensure the stability of the adjusted position, while the locking screw 6 can adjust the vertical position of the heating nozzle 47 on the mounting cylinder 482 to achieve more precise spray angle adjustment. Multiple sets of thermometers 9 and hygrometers 10 installed on the top of the heating chamber 1 can monitor the temperature and humidity in the heating chamber 1 in real time. The setting of the reinforcing angle 8 enhances the stability of the mounting plate 41, improves the uniform distribution of steam in the heating chamber 1, and ensures that the precast beams can be uniformly and fully steam-cured. Fine-tuning of the position and angle of the heating nozzle 47 can adapt to precast beams of different sizes and shapes, improving the applicability and flexibility of the equipment.

[0038] Specifically, such as Figure 4 As shown, the diversion mechanism 5 includes a diversion hood 51 fixedly connected to the output end of the steam generator 3. Three diversion plates 52 are fixedly connected inside the diversion hood 51. Three diversion pipes 53 are provided through the side wall of the diversion hood 51. The diversion plates 52 and the diversion pipes 53 are arranged alternately. A telescopic corrugated pipe 54 is provided at the other end of the diversion pipe 53. The other end of the telescopic corrugated pipe 54 is connected through the heating nozzle 47.

[0039] Specifically, such as Figure 3 As shown, two limiting frames 11 are fixedly connected to the top of the base plate 2, and multiple rollers 12 are arranged inside the limiting frames 11.

[0040] The steam generated by the steam generator 3 first enters the distribution hood 51. The three distribution plates 52 inside the distribution hood 51 divide the steam evenly into three parts and discharge it through the three distribution pipes 53 arranged in a staggered manner with the distribution plates 52, ensuring the uniform distribution of steam and avoiding uneven heating caused by uneven steam flow. The other end of the distribution pipe 53 is connected to the telescopic corrugated pipe 54. The telescopic corrugated pipe 54 has a certain degree of flexibility and extensibility, which can adapt to the position change of the heating nozzle 47 during the swing process, ensuring that the steam can be stably and continuously delivered to the heating nozzle 47. The roller 12 and the limiting frame 11 guide the movement of the precast beam.

[0041] By adopting the above technical solution, the problem that existing precast beam curing sheds cannot deliver steam evenly to the precast beams has been solved. Existing patents use steam exhaust pipes to deliver steam at fixed positions, which results in a limited range of steam delivery and cannot deliver steam evenly to the precast beams. At the same time, there is a problem that the angle of steam delivery cannot be adjusted.

[0042] Working principle: In use, the steam generated by the steam generator 3 first enters the distribution hood 51. Three distribution plates 52 inside the distribution hood 51 evenly divide the steam into three parts, which are then discharged through three distribution pipes 53 staggered with the distribution plates 52, ensuring uniform steam distribution. The other end of each distribution pipe 53 is connected to a telescopic bellows 54, which has a certain degree of flexibility and extensibility to adapt to the positional changes of the heating nozzle 47 during its oscillation. The start of the drive motor 44 causes the turntable 45 to rotate. Since the drive rod 46 is eccentrically positioned on the turntable 45, it reciprocates within the drive groove 43 as the turntable 45 rotates. This reciprocating motion is transmitted to the drive plate 42 through the hinge point, causing the drive plate 42 to swing around the hinge point as the axis, thereby driving the heating nozzle 47 to swing and spray steam. This swinging spray method can ensure that the steam is more evenly distributed in the heating chamber 1, avoiding local overheating or overcooling. By rotating the adjusting screw 483, the position of the mounting cylinder 482 in the U-shaped frame 481 can be changed, thereby adjusting the horizontal position of the heating nozzle 47. The locking nut 484 is used to fix the adjusting screw 483 to ensure that the adjusted position is stable, while the locking screw 6 can adjust the vertical position of the heating nozzle 47 on the mounting cylinder 482 to achieve more precise spray angle adjustment.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A heating device for steam curing of precast beams, comprising a heating chamber (1), characterized in that: The bottom of the heating chamber (1) is provided with a bottom plate (2), the top of the bottom plate (2) is provided with two steam generators (3), the two steam generators (3) are located on both sides of the heating chamber (1), the inside of the heating chamber (1) is provided with a uniform heating mechanism (4), and the uniform heating mechanism (4) is provided with a flow distribution mechanism (5) between the steam generator (3). The uniform heating mechanism (4) comprises a plurality of mounting plates (41) mounted on the inner walls of the two sides of the heating chamber (1), the top of the mounting plate (41) is provided with a driving plate (42), one end of the driving plate (42) is hingedly connected with the mounting plate (41), the middle of the mounting plate (41) is provided with a driving groove (43), the bottom of the mounting plate (41) is bolted with a driving motor (44), the output end of the driving motor (44) is fixedly connected with a rotating disc (45), the top of the rotating disc (45) is fixedly connected with a driving rod (46) movably arranged in the driving groove (43), the driving rod (46) is eccentrically arranged on the rotating disc (45), one end of the driving plate (42) is provided with a heating nozzle (47), and one end of the driving plate (42) is provided with an adjustable mounting assembly (48).

2. The heating device for steam curing of precast beams according to claim 1, characterized in that: The adjustable mounting assembly (48) comprises a U-shaped frame (481) fixedly connected to one end of the driving plate (42), a mounting cylinder (482) is arranged in the middle of the U-shaped frame (481), and adjusting screws (483) are fixedly connected to both ends of the mounting cylinder (482).

3. The heating device for steam curing of precast beams according to claim 1, characterized in that: The flow distribution mechanism (5) comprises a flow distribution cover (51) fixedly connected to the output end of the steam generator (3), three flow distribution plates (52) are fixedly connected in the flow distribution cover (51), three flow distribution pipes (53) are throughly arranged on the side wall of the flow distribution cover (51), the flow distribution plates (52) and the flow distribution pipes (53) are arranged alternately, the other end of the flow distribution pipe (53) is provided with a telescopic bellows (54), and the other end of the telescopic bellows (54) is connected with the heating nozzle (47) in a penetrating manner.

4. The heating device for steam curing of precast beams according to claim 2, characterized in that: The top of the mounting cylinder (482) is threadedly connected with a locking screw (6), and the output end of the locking screw (6) is in contact with the heating nozzle (47).

5. The heating device for steam curing of precast beams according to claim 1, characterized in that: A rotating ring (7) is sleeved on the side wall of the driving rod (46), and the side wall of the rotating ring (7) is in contact with the driving groove (43).

6. The heating device for steam curing of precast beams according to claim 1, characterized in that: The bottom of the mounting plate (41) is provided with a reinforcing angle (8), and the side wall of the reinforcing angle (8) is fixedly connected with the heating chamber (1).

7. The heating device for steam curing of precast beams according to claim 1, characterized in that: A plurality of thermometers (9) and hygrometers (10) are mounted on the top of the heating chamber (1), and the hygrometers (10) are located on both sides of the thermometers (9).

8. The heating device for steam curing of precast beams according to claim 1, characterized in that: The top of the bottom plate (2) is fixedly connected with two limiting frames, and a plurality of rollers (12) are arranged in the limiting frames.

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