Maintenance system for large inclined surface of boiler

Abstract

The utility model relates to the technical field of boiler maintenance equipment, and discloses a boiler large slope maintenance system which comprises a connecting base, a vertical rod, a horizontal rod, an assembled stair and a pedal, the connecting base comprises a bottom plate, a lead screw rotationally arranged on the bottom plate and a locking bolt for locking the connecting state between the bottom plate and the lead screw, and the vertical rod is arranged on the vertical rod; the bottom plates are distributed along positioning points of the vertical rods and attached to a large inclined face outside the top of the boiler, the lead screws are always kept in a vertical state, the included angles between the lead screws and the bottom plates are matched with the inclination angle of the large inclined face outside the top of the boiler, the vertical rods are rotationally arranged at the tops of the lead screws in a sleeving mode through threads, the vertical rods are distributed vertically, and the horizontal rods are located between every two adjacent vertical rods. The assembled staircase is located in the space defined by the vertical rods and the horizontal rods and assembled on the horizontal rods, and the pedals are laid on the horizontal rods at the entrance and exit of the assembled staircase. The maintenance operation platform has the effect of improving the building efficiency and the use safety of the maintenance operation platform.

Description

Technical Field

[0001] This application relates to the field of boiler maintenance equipment technology, and in particular to a boiler large inclined surface maintenance system. Background Technology

[0002] In modern industrial production, boilers, as crucial energy equipment, directly impact a company's production and economic benefits. Regular inspection and maintenance are essential to ensure the long-term stable operation of boilers. Currently, most domestic enterprises rely on traditional steel pipe and coupler-type scaffolding to construct operating platforms for boiler superheater maintenance. This type of scaffolding is widely used due to its simple structure, ease of assembly, and ability to quickly adapt to various construction environments, providing basic working conditions for workers. However, with the continuous development of industrial production and technological advancements, traditional steel pipe and coupler-type scaffolding has gradually revealed a series of problems, especially in complex construction environments where its limitations become increasingly apparent.

[0003] In boiler maintenance operations, to address the challenges of workers operating on steep slopes, two main methods are commonly used for erecting steel pipe and coupler scaffolding: one is using long poles, and the other is enhancing stability by adding support points. While long poles can effectively cover a large work area, their weight makes handling and installation difficult, and they are prone to slipping on slopes, affecting safety. Adding support points improves stability, but requires significant time and manpower, and is often impractical in the confined space inside a boiler. Furthermore, both methods require frequent adjustments and corrections during construction, reducing efficiency and increasing costs.

[0004] While the aforementioned methods have addressed some construction issues to a certain extent, they still have many shortcomings in practical application. For example, the components of steel pipe and coupler-type scaffolding are scattered, resulting in low erection efficiency. This is especially true for operating platforms on steep slopes, where the long material members not only limit the flexibility of construction operations but also lead to disorganized components, affecting project progress and construction safety, thus increasing construction costs. Particularly when building maintenance platforms inside boilers, the high cost of boiler shutdown necessitates that the maintenance platform be erected in one go. Using steel pipe and coupler-type scaffolding not only fails to meet this requirement but also further exacerbates construction costs. Therefore, how to efficiently and safely construct maintenance operating platforms on steep slopes of boilers has become a pressing technical challenge. Utility Model Content

[0005] To improve the efficiency of setting up and the safety of using the maintenance and repair operation platform, this application provides a maintenance system for a large inclined surface of a boiler.

[0006] The boiler large inclined surface maintenance system provided in this application adopts the following technical solution:

[0007] A boiler ramp maintenance system includes a connecting base, uprights, horizontal bars, an assembled staircase, and treads. The connecting base includes a base plate, a screw rod rotatably mounted on the base plate, and locking bolts that lock the connection between the base plate and the screw rod. The base plate is distributed along the positioning points of the uprights and fits against the ramp outside the boiler top. The screw rod remains vertical at all times. The angle between the screw rod and the base plate is set to match the inclination angle of the ramp outside the boiler top. The uprights are threaded and rotated onto the top of the screw rod. Multiple uprights are distributed vertically. The horizontal bars are located between two adjacent uprights and are connected to the uprights via disc fasteners. The assembled staircase is located within the space enclosed by the uprights and horizontal bars and is assembled on the horizontal bars. The treads serve as a working platform and are laid on the horizontal bars at the entrance and exit of the assembled staircase.

[0008] By adopting the above technical solutions, this boiler steep slope maintenance system significantly improves construction efficiency and safety. Firstly, the design of the connecting base ensures the base plate fits tightly against the steep slope of the boiler top, guaranteeing the stability of the entire system. Secondly, the uprights are connected to the threaded rods, allowing for flexible height adjustment according to site requirements, improving applicability and convenience. Furthermore, the horizontal bars and uprights are connected via disc fasteners, enhancing the overall structural stability and simplifying the assembly process, reducing construction time. The modular staircase and treads provide a convenient operating platform for construction personnel, making access to and from the work area safer and more reliable. In summary, this system overcomes many shortcomings of traditional scaffolding, achieving efficient and safe boiler steep slope maintenance operations.

[0009] Optionally, the disc fastener includes a plurality of connecting discs sleeved on the upright and a fastener head disposed at the end of the horizontal bar. The plurality of connecting discs are distributed along the length of the upright and welded to the upright. The connection between the fastener head and the connecting disc is provided with a wedge-shaped pin with a self-locking function. The fastener head of the horizontal bar is connected to the corresponding connecting disc through the wedge-shaped pin.

[0010] By adopting the above technical solution, during the construction process, the horizontal bar's coupling is simply inserted into the corresponding connecting plate, and then secured with a wedge pin, achieving a quick connection between the horizontal bar and the vertical bar. The disc-coupler design makes the connection between the horizontal bar and the vertical bar more stable and reliable, improving the stability and safety of the entire maintenance system. Specifically, the combined use of the connecting plate and coupling, along with the self-locking wedge pin, not only simplifies the connection process but also enhances the vibration resistance of the connection points, reducing the risk of loosening caused by vibration. At the same time, this design makes the installation and disassembly of the horizontal bar more convenient, improving construction efficiency and reducing construction time.

[0011] Optionally, a diagonal brace is also provided between the upright and the horizontal bar. The diagonal brace is connected to the horizontal bar at an angle parallel to the assembled staircase. Multiple diagonal braces are provided directly above each assembled staircase. A fastener is provided at the end of each diagonal brace. The fastener at the end of the diagonal brace is connected to the corresponding connecting plate by a wedge-shaped pin.

[0012] By adopting the above technical solution, multiple diagonal braces are installed directly above each assembled staircase. This not only enhances the rigidity and structural strength of the system but also provides handrails and guardrails for construction workers when assembling the staircase, thereby improving the safety of workers operating on steep inclines. Furthermore, the snap-fit ​​joints at the ends of the diagonal braces are connected to corresponding connecting plates via wedge-shaped pins, enabling quick and convenient assembly and disassembly, thus improving construction efficiency.

[0013] Optionally, a connecting sleeve is provided between the ends of two vertically distributed uprights, and an abutment ring is provided circumferentially on the inner ring sidewall of each connecting sleeve to abut the end wall of the upright.

[0014] By adopting the above technical solution, the connecting sleeve strengthens the connection between the uprights, improving the stability and reliability of the entire maintenance system. The abutment ring design ensures a tight contact between the end of the upright and the connecting sleeve, avoiding safety hazards caused by upright swaying or loosening, and further enhancing the safety of the maintenance system. At the same time, the use of the connecting sleeve simplifies the connection process between the uprights, improves erection efficiency, and reduces construction time and costs.

[0015] Optionally, the top and bottom of the assembled staircase are provided with door-shaped buckles, which are vertically fitted onto the horizontal bar and restrict the horizontal bar in the horizontal direction.

[0016] By adopting the above technical solution, the door-shaped buckles at the top and bottom of the prefabricated staircase can be vertically fitted onto the horizontal bar and horizontally restrained, thereby improving the overall stability and safety of the prefabricated staircase and preventing safety accidents caused by loosening of the horizontal bar during use. At the same time, this design simplifies the installation process of the prefabricated staircase, improves assembly efficiency, and reduces construction time and costs.

[0017] Optionally, the top wall of the end of the pedal is provided with a hook for hooking a horizontal bar, and the bottom wall of the end of the pedal is provided with a limiting pin, and the horizontal bar is limited between the hook and the limiting pin.

[0018] By adopting the above technical solution, a hook for engaging a horizontal bar is provided on the top wall of the end of the pedal, and a limiting pin is provided on the bottom wall of the end of the pedal. The horizontal bar is limited between the hook and the limiting pin, achieving a stable connection between the pedal and the horizontal bar, thus improving the safety and reliability of the work platform. At the same time, this design simplifies the pedal installation process, reduces the time and difficulty of manual operation, and improves construction efficiency.

[0019] Optionally, an anti-slip pad is provided on the bottom wall where the base plate contacts the large inclined surface outside the boiler top.

[0020] By adopting the above technical solution, the anti-slip pad effectively increases the friction between the base plate and the outer slope of the boiler top, preventing the base plate from sliding on the slope, improving the stability of the entire maintenance system, and ensuring the safety of construction personnel.

[0021] Optionally, a test ring containing half the volume of colored fluid in the inner cavity is threaded onto the lead screw, and the outer wall of the test ring is transparent. A base coil is arranged around the middle of the transparent outer wall of the test ring. When the lead screw is vertically arranged, the liquid level of the colored fluid in the test ring coincides with that of the base coil.

[0022] By adopting the above technical solution, the alignment of the colored fluid surface inside the test ring with the base coil allows for a direct visual indication of whether the lead screw is in a vertical position, ensuring accurate installation and improving the stability and safety of the maintenance system. Simultaneously, the transparent test ring design facilitates observation and adjustment, reducing errors during installation and improving construction efficiency.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. This boiler ramp maintenance system significantly improves construction efficiency and safety. Firstly, the base design ensures the base plate fits snugly against the ramp top of the boiler, guaranteeing the stability of the entire system. Secondly, the uprights are connected by threads and screws, allowing for flexible height adjustment according to site requirements, improving applicability and convenience. Furthermore, the horizontal bars and uprights are connected by disc fasteners, enhancing overall structural stability and simplifying the assembly process, reducing construction time. The modular staircase and treads provide a convenient operating platform for workers, making access to and from the work area safer and more reliable. In summary, this system overcomes many shortcomings of traditional scaffolding, enabling efficient and safe boiler ramp maintenance operations.

[0025] 2. During the setup process, simply insert the horizontal bar's coupling into the corresponding connecting plate and then secure it with wedge pins to achieve a quick connection between the horizontal bar and the vertical bar. The disc-coupler design makes the connection between the horizontal bar and the vertical bar more stable and reliable, improving the stability and safety of the entire maintenance system. Specifically, the combined use of the connecting plate and coupling, along with the self-locking wedge pins, not only simplifies the connection process but also enhances the vibration resistance of the connection points, reducing the risk of loosening due to vibration. At the same time, this design makes the installation and disassembly of the horizontal bar more convenient, improving construction efficiency and reducing construction time.

[0026] 3. Multiple diagonal braces are installed directly above each prefabricated staircase. These not only enhance the system's rigidity and structural strength but also provide handrails and guardrails for workers assembling the staircase, thus improving safety when operating on steep inclines. Furthermore, the buckle ends of the diagonal braces are connected to corresponding connecting plates via wedge-shaped pins, enabling quick and convenient assembly and disassembly, thereby improving construction efficiency. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0028] Figure 2 This is a schematic diagram illustrating the connection relationship between the lead screw and the base plate in the connecting base in Embodiment 1 of this application.

[0029] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0030] Figure 4 This is a cross-sectional view illustrating the connection relationship between the connecting sleeve and the upright in Embodiment 1 of this application.

[0031] Figure 5 This is a structural schematic diagram of the assembled staircase shown in Embodiment 1 of this application.

[0032] Figure 6 This is a schematic diagram illustrating the connection relationship between the lead screw and the test ring in the connecting base in Embodiment 2 of this application.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Connecting base; 11. Base plate; 111. Anti-slip pad; 12. Screw rod; 13. Locking bolt; 2. Upright pole; 3. Horizontal bar; 31. Connecting sleeve; 311. Abutment ring; 312. Mounting hole; 4. Assembled staircase; 41. Buckle; 5. Tread; 51. Hook; 52. Limiting pin; 6. Disc fastener; 61. Connecting disc; 62. Fastener connector; 7. Wedge pin; 8. Diagonal bar; 9. Test ring; 91. Base coil. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0036] This application discloses a maintenance system for a large inclined plane of a boiler.

[0037] Example 1

[0038] Reference Figure 1 A boiler ramp maintenance system includes a standard-sized connecting base 1, uprights 2, horizontal bars 3, an assembled staircase 4, and treads 5. The connecting base 1 is angle-adjustable, distributed along the positioning points of the uprights 2, and fitted onto the ramp outside the boiler top. The uprights 2 are always vertical, connected to the top of the connecting base 1. The remaining uprights 2 are assembled vertically in sequence via connecting sleeves 31. Multiple uprights 2 are distributed vertically. The horizontal bars 3 are located between adjacent uprights 2 and are connected to the uprights 2 via disc fasteners 6. The assembled staircase 4 is located within the space enclosed by the uprights 2 and horizontal bars 3 and is assembled on the horizontal bars 3. The treads 5 serve as a working platform, laid on the horizontal bars 3 at the entrance and exit of the assembled staircase 4.

[0039] Reference Figure 1 Based on the boiler design drawings, the specifications and lengths of each component were designed according to the spacing of the tube segments to ensure that the corresponding rod specifications were selected during the erection process. Then, the inspection and maintenance operating system was erected according to the design. The positioning points of the uprights 2 were determined on the large sloping surface outside the boiler top, and the connecting bases 1 were arranged outward from the positioning points. The uprights 2 were assembled vertically on the top of the connecting bases 1, and the uprights 2 and horizontal bars 3 of the sloping section were erected row by row to form a unit system. Finally, the assembled stairs 4 and treads 5 were installed in sequence.

[0040] Reference Figure 2The connecting base 1 includes a base plate 11, a lead screw 12, and a locking bolt 13. An anti-slip pad 111 is fixedly installed on the bottom wall of the base plate 11. The lead screw 12 is rotatably mounted on the base plate 11, and the locking bolt 13 rotates through both the lead screw 12 and the base plate 11. The lead screw 12 remains vertical at all times, and the angle between the lead screw 12 and the base plate 11 is set to match the inclination angle of the large inclined surface on the outer side of the boiler top. The locking nut is used to fix the relative position of the lead screw 12 and the base plate 11, and can be tightened manually or with a power tool to ensure the verticality of the lead screw 12.

[0041] Reference Figure 3 The fastener 6 includes several connecting discs 61 and fastener joints 62. The connecting discs 61 are sleeved on the upright 2, distributed along the length of the upright 2, and welded to the upright 2. The fastener joints 62 are welded to the ends of the horizontal bar 3. A wedge-shaped pin 7 with a self-locking function is provided at the connection between the fastener joint 62 and the connecting disc 61. The fastener joint 62 of the horizontal bar 3 is connected to the corresponding connecting disc 61 through the wedge-shaped pin 7. The diameter and thickness of the connecting disc 61 can be adjusted according to actual needs to accommodate horizontal bars 3 of different diameters. The design of the wedge-shaped pin 7 ensures a stable connection between the horizontal bar 3 and the upright 2, preventing loosening.

[0042] Reference Figure 3 and Figure 4 The connecting sleeves 31 are fitted onto the opposite ends of two adjacent uprights 2. Each connecting sleeve 31 has an integrally formed abutment ring 311 on its inner ring sidewall, which abuts against the end wall of the upright 2. The top end of the upright 2 is inserted into the connecting sleeve 31 and welded to it. The bottom end of the upright 2 is inserted into the connecting sleeve 31, and a mounting hole 312 for the connecting pin to pass through is formed between it and the connecting sleeve 31 along a direction perpendicular to the length of the upright 2. During field operation, the connecting pin (not shown in the figure) passes through the mounting hole 312 on both the connecting sleeve 31 and the upright 2, and the two ends of the connecting pin (not shown in the figure) extending out of the connecting sleeve 31 are locked using limiting rings (not shown in the figure).

[0043] Reference Figure 1 and Figure 5 The top and bottom of the assembled staircase 4 are both fixedly equipped with door-shaped buckles 41. The buckles 41 are vertically fitted onto the horizontal bar 3, and the buckles 41 also restrict the horizontal bar 3 in the horizontal direction. The design of the buckles 41 can ensure the stable connection of the assembled staircase 4 and prevent it from falling off due to vibration or other external factors.

[0044] Reference Figure 1 and Figure 3A diagonal brace 8 is also provided between the upright 2 and the horizontal bar 3. The diagonal brace 8 is connected to the horizontal bar 3 at an angle parallel to the inclination of the assembled staircase 4, and multiple diagonal braces 8 are provided directly above each assembled staircase 4. In this embodiment, two diagonal braces are provided parallel to each assembled staircase 4. A fastener 62 is also fixedly provided at the end of the diagonal brace 8 and connected to the corresponding connecting plate 61 by a wedge-shaped pin 7. This not only enhances the rigidity and structural strength of the system, but also serves as a handrail and guardrail for construction workers when assembling the staircase, thereby improving the safety of construction workers operating on steep slopes.

[0045] Reference Figure 3 A hook 51 for hooking the horizontal bar 3 is fixedly installed on the top wall of the end of the pedal 5, and a limit pin 52 is fixedly installed on the bottom wall of the end of the pedal 5, so that the horizontal bar 3 is limited between the hook 51 and the limit pin 52.

[0046] The implementation principle of the boiler steep slope maintenance system in this application embodiment is as follows: Through the rotation and lifting design of the connecting base 1, the height and inclination angle of the uprights 2 can be flexibly adjusted to adapt to steep slopes of varying gradients. The connection between the uprights 2 and the horizontal bars 3 is achieved through disc couplers 6, greatly reducing the problem of scattered materials in traditional steel pipe coupler scaffolding and significantly improving erection efficiency. The design of the assembled stairs 4 and treads 5 ensures the safety of workers and improves construction efficiency. The addition of diagonal braces 8 further enhances the stability of the system and the safety of workers. The entire system is simple and reliable in design, suitable for various complex construction environments, and particularly suitable for efficient maintenance operations on boiler steep slopes.

[0047] Example 2

[0048] Reference Figure 6 The difference between this embodiment and Embodiment 1 is that a test ring 9 for testing the verticality of the lead screw 12 is provided on the connecting base 1. The test ring 9 is screwed onto the lead screw 12. The inner cavity of the test ring 9 contains half a cavity volume of colored fluid, and its outer wall is transparent. A base coil 91 is arranged around the middle of the transparent outer wall of the test ring 9. When the lead screw 12 is vertically positioned, the liquid level of the colored fluid in the test ring 9 coincides with that of the base coil 91.

[0049] The implementation principle of Example 2 is as follows: The main function of the test ring 9 is to check whether the lead screw 12 is vertical during installation. When the lead screw 12 is set vertically, the colored fluid inside the test ring 9 will remain horizontal, and the liquid surface will coincide with the base coil 91, indicating that the lead screw 12 has been correctly installed. If the liquid surface deviates from the base coil 91, the angle of the lead screw 12 needs to be adjusted until the liquid surface coincides with the base coil 91. The design of the test ring 9 simplifies the installation process, improves installation accuracy, and ensures the stability and safety of the system.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A maintenance system for a boiler with a large inclined plane, characterized in that... The system includes a connecting base (1), a vertical pole (2), a horizontal pole (3), an assembled staircase (4), and a tread (5). The connecting base (1) includes a base plate (11), a screw rod (12) rotatably mounted on the base plate (11), and a locking bolt (13) that locks the connection between the base plate (11) and the screw rod (12). The base plate (11) is distributed along the positioning points of the vertical pole (2) and fits against the large inclined surface outside the boiler top. The screw rod (12) always remains vertical. The included angle between the screw rod (12) and the base plate (11) is... The inclined angle of the outer slope of the boiler top is set. The upright (2) is screwed onto the top of the screw (12) by a screw rotation. There are multiple uprights (2) distributed vertically. The horizontal bar (3) is located between two adjacent uprights (2) and is connected to the uprights (2) by a disc fastener (6). The assembled staircase (4) is located in the space enclosed by several uprights (2) and horizontal bars (3) and is assembled on the horizontal bar (3). The tread (5) is laid on the horizontal bar (3) at the entrance and exit of the assembled staircase (4) as a working platform.

2. The boiler large inclined surface maintenance system according to claim 1, characterized in that... The disc fastener (6) includes a plurality of connecting discs (61) sleeved on the upright (2) and a fastener (62) set at the end of the horizontal bar (3). The plurality of connecting discs (61) are distributed along the length of the upright (2) and welded to the upright (2). The connection between the fastener (62) and the connecting disc (61) is provided with a wedge-shaped pin (7) with a self-locking function. The fastener (62) of the horizontal bar (3) is connected to the corresponding connecting disc (61) through the wedge-shaped pin (7).

3. The boiler large inclined surface maintenance system according to claim 2, characterized in that... A diagonal brace (8) is also provided between the upright (2) and the horizontal bar (3). The diagonal brace (8) is connected to the horizontal bar (3) at an angle parallel to the assembled staircase (4). Multiple diagonal braces (8) are provided directly above each assembled staircase (4). A snap-fit ​​connector (62) is provided at the end of each diagonal brace (8). The snap-fit ​​connector (62) at the end of the diagonal brace (8) is connected to the corresponding connecting plate (61) by a wedge-shaped pin (7).

4. The boiler large inclined surface maintenance system according to claim 3, characterized in that, A connecting sleeve (31) is provided between the ends of the two vertically distributed uprights (2), and an abutment ring (311) is provided on the inner ring sidewall of each connecting sleeve (31) in the circumferential direction to abut the end wall of the upright (2).

5. A boiler large inclined surface maintenance system according to claim 1, characterized in that... The top and bottom of the assembled staircase (4) are provided with door-shaped buckles (41). The buckles (41) are sleeved on the horizontal bar (3) vertically, and the buckles (41) restrict the horizontal bar (3) in the horizontal direction.

6. The boiler large inclined surface maintenance system according to claim 1, characterized in that... The top wall of the end of the pedal (5) is provided with a hook (51) for hooking the horizontal bar (3), and the bottom wall of the end of the pedal (5) is provided with a limiting pin (52), and the horizontal bar (3) is limited between the hook (51) and the limiting pin (52).

7. The boiler large inclined surface maintenance system according to claim 1, characterized in that... The bottom plate (11) is provided with anti-slip pads on the bottom wall where it contacts the large inclined surface outside the boiler top.

8. A boiler large inclined surface maintenance system according to claim 1, characterized in that... The lead screw (12) is threaded with a test ring (9) that stores half the volume of colored fluid in its inner cavity. The outer wall of the test ring (9) is transparent. A base coil (91) is arranged around the middle of the transparent outer wall of the test ring (9). When the lead screw (12) is vertical, the liquid level of the colored fluid in the test ring (9) coincides with that of the base coil (91).

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