Maintenance system for double bucket surfaces of boiler
By using a maintenance system with beams and fixings on the double bucket surface of the boiler, the problems of difficult and high cost installation in traditional maintenance are solved, and a fast, stable and low-cost maintenance effect is achieved.
Patent Information
- Application Number
- CN202423015781.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In the traditional double-bucket boiler maintenance, setting up scaffolding is difficult, time-consuming, and costly, and there is also the problem of unstable footing of the steel pipe uprights.
An inspection system consisting of scaffolding and beams is used. The bottom plates at both ends of the beams abut against the double bucket surfaces of the boiler and are fixed by the beams' own weight. Multiple beams are arranged along the length and scaffolding is erected. Fixings and adjustable bases and vertical pole structures are used to improve stability and adaptability, and the height difference of the beams is adjusted using liquid level columns.
It reduces the difficulty and time of scaffolding erection, improves stability and adaptability, shortens maintenance period and reduces maintenance costs.
Smart Images
Figure CN223482228U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of boiler maintenance technology, and in particular to a maintenance system for a double-bucket boiler. Background Technology
[0002] The double-bucket surface of a boiler typically refers to the bottom slope of the boiler furnace. The bottom slope is a bucket-shaped furnace bottom structure formed by water-cooled walls at a certain angle (generally 50° to 55°), mainly used for cooling and collecting ash and slag, allowing it to be discharged in solid form.
[0003] As the equipment is used for a longer period of time, a large amount of ash and slag will accumulate inside the cold ash hopper at the bottom of the boiler furnace, which will seriously affect the cooling effect. Therefore, regular maintenance is required. The traditional maintenance method is to use a steel pipe and fastener operating platform.
[0004] However, in practice, erecting scaffolding on a bucket-shaped surface can lead to instability in the steel pipe uprights, and diagonal bracing is usually required for reinforcement. This results in greater difficulty and longer construction period for scaffolding, significantly increasing maintenance costs and presenting shortcomings. Utility Model Content
[0005] To address the issue of increased maintenance costs due to the inconvenience of erecting scaffolding inside the cold ash hopper at the bottom of the boiler furnace, this application provides a maintenance system for the double-hopper side of a boiler.
[0006] The present application provides a maintenance system for a double-bucket boiler, which adopts the following technical solution:
[0007] A maintenance system for a double-bucket boiler includes scaffolding and crossbeams. The crossbeams are arranged along the length of the double-bucket boiler. Both ends of the crossbeams are rotatably equipped with base plates, and the base plates at both ends of the crossbeams are used to abut against the double-bucket boiler. Fixing members are provided between the scaffolding and the crossbeams for fixing.
[0008] By adopting the above technical solution, maintenance personnel first place the crossbeam inside the boiler and make the bottom plates at both ends of the crossbeam abut against the double bucket surface inside the boiler. The weight of the crossbeam itself makes the bottom plates press tightly against the double bucket surface of the boiler. Then, the operation is repeated to evenly arrange multiple crossbeams along the length of the double bucket surface of the boiler. Then, scaffolding is erected on the crossbeam and fixed to the crossbeam with fasteners. In this process, there is no need to erect scaffolding on the double bucket surface of the boiler, which reduces the difficulty of scaffolding erection, locks in the time for scaffolding erection, and thus reduces maintenance costs.
[0009] Optionally, the scaffolding includes uprights, horizontal bars, and footboards. The uprights are provided with multiple connecting plates along their axial direction. The horizontal bars are detachably mounted on the connecting plates. The footboards are provided with hooks at both ends for hanging on the horizontal bars.
[0010] By adopting the above technical solutions, scaffolding can be erected simply, conveniently, and quickly, which helps to further reduce the difficulty and time required for maintenance personnel to erect scaffolding, shorten the maintenance period, and thus reduce maintenance costs.
[0011] Optionally, the fastener includes a bracket detachably mounted on the crossbeam, a fixing bolt being bolted to the bracket, a plurality of fixing holes for bolting the fixing bolt being formed along the length of the crossbeam, a vertical rod being mounted on the bracket, an end block being threaded onto the vertical rod, the upright being slidably mounted on the vertical rod, and the end block being used to abut against the end of the upright.
[0012] By adopting the above technical solution, maintenance personnel adjust the position of the card holder, then fix the card holder to the crossbeam with fixing bolts, then put the upright on the vertical bar, and turn the end block so that the upright abuts against the end block, thereby making the uprights on multiple card holders at the same height, which helps to improve the stability of the scaffold.
[0013] Optionally, ear plates are provided on the base plate and on both sides of the crossbeam, and a bolt rod is passed between the two ear plates. The bolt rod rotates through the crossbeam, and a stiffening plate is provided between the ear plates and the base plate.
[0014] By adopting the above technical solution, the base plate can rotate to any angle around the axis of the bolt rod, thereby adapting to the double hopper of the boiler with different inclination angles, which is beneficial to improving the versatility of the crossbeam installation.
[0015] Optionally, the crossbeam includes a middle beam tube and end beam tubes, the end beam tubes are slidably disposed at both ends of the middle beam tube, the base plate is rotatably disposed on the end beam tubes, and the middle beam tube is provided with a driving assembly for driving the end beam tubes to slide.
[0016] By adopting the above technical solution, when the distance between the two boiler buckets is too large, maintenance personnel can use the drive assembly to make the end beams at both ends of the middle beam slide back to back, thereby enabling it to adapt to the large-spacing boiler buckets and improving the adaptability of the crossbeam to boiler buckets of different sizes.
[0017] Optionally, the drive assembly includes a drive shaft rotatably mounted on the intermediate beam tube, a gear coaxially mounted on the drive shaft, racks meshing with the gears on both end beam tubes, the racks on the two end beam tubes being symmetrically arranged about the axis of the drive shaft, and a locking element for locking the drive shaft on the intermediate beam tube.
[0018] By adopting the above technical solution, the maintenance personnel rotate the drive shaft in the forward direction, and the drive shaft drives the gear to rotate synchronously. Since the racks on the two end beam tubes are arranged symmetrically about the axis of the drive shaft, the two end beam tubes slide in opposite directions, so that the bottom plate can abut against the boiler double bucket surface with a larger distance. Then, the end beam tubes are fixed on the middle beam tube by the locking device, which helps to reduce the possibility of the end beam tubes accidentally retracting.
[0019] Optionally, the locking element includes a ratchet coaxially mounted on the drive shaft, a thorn rotatably mounted on the intermediate beam tube that meshes with the ratchet, a stop block mounted on the intermediate beam tube, and a compression spring supporting the stop block and the thorn.
[0020] By adopting the above technical solution, when the drive shaft drives the ratchet to rotate, the compression spring always presses the thorn tightly against the ratchet, thereby preventing the drive shaft from rotating in the opposite direction and reducing the possibility of the end beam tube retracting.
[0021] Optionally, a liquid level column is provided on the intermediate beam tube, and several scales are provided on the liquid level column along its axial direction. A flexible tube connects the liquid level columns on two adjacent intermediate beam tubes.
[0022] By adopting the above technical solution, after multiple crossbeams are installed along the length of the boiler's double hopper surface, maintenance personnel connect the liquid level columns on two adjacent intermediate beam pipes through flexible hoses and inject liquid into the liquid level columns. Then, by observing the liquid level columns on different intermediate beam pipes, maintenance personnel can adjust the height between multiple crossbeams. This helps to reduce the height difference between different crossbeams caused by the deformation of the boiler's double hopper surface, and also helps to reduce the difficulty of leveling by maintenance personnel, thus improving the stability of scaffolding installation.
[0023] In summary, this application includes at least one of the following beneficial technical effects:
[0024] 1. The maintenance personnel first place the crossbeam inside the boiler and make the bottom plates at both ends of the crossbeam abut against the double bucket surface inside the boiler. The weight of the crossbeam itself makes the bottom plates press tightly against the double bucket surface of the boiler. Then, the operation is repeated to evenly distribute multiple crossbeams along the length of the double bucket surface of the boiler. Then, scaffolding is erected on the crossbeam and fixed to the crossbeam with fasteners. In this process, there is no need to erect scaffolding on the double bucket surface of the boiler, which reduces the difficulty of scaffolding erection, locks in the time for scaffolding erection, and thus reduces maintenance costs.
[0025] 2. The maintenance personnel adjust the position of the brackets, and then fix the brackets to the crossbeams with fixing bolts. After that, the uprights are put on the vertical poles and the end blocks are turned so that the uprights abut against the end blocks, so that the uprights on multiple brackets are at the same height, which helps to improve the stability of the scaffolding.
[0026] 3. When the maintenance personnel rotate the drive shaft forward, the drive shaft drives the gear to rotate synchronously. Since the racks on the two end beam tubes are arranged symmetrically about the axis of the drive shaft, the two end beam tubes slide in opposite directions, so that the bottom plate can abut against the boiler double bucket surface with a greater distance. Then, the end beam tubes are fixed on the middle beam tube by the locking device, which helps to reduce the possibility of the end beam tubes accidentally retracting.
[0027] 4. After multiple crossbeams are installed along the length of the boiler's double hopper surface, maintenance personnel connect the liquid level columns on two adjacent intermediate beam pipes through flexible hoses and inject liquid into the liquid level columns. Then, by observing the liquid level columns on different intermediate beam pipes, maintenance personnel adjust the height between multiple crossbeams. This helps to reduce the height difference between different crossbeams caused by the deformation of the boiler's double hopper surface, and also helps to reduce the difficulty of leveling by maintenance personnel, thus improving the stability of the scaffolding installation. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this application.
[0029] Figure 2 yes Figure 1 Enlarged view of section A.
[0030] Figure 3 This is a structural schematic diagram showing the positional relationship between the end beam pipe, the middle beam pipe, and the flexible hose in Embodiment 2 of this application.
[0031] Figure 4 yes Figure 3 Enlarged view of section B.
[0032] Figure 5 This is a cross-sectional view showing the positional relationship between the gear, rack, and intermediate beam tube in Embodiment 2 of this application.
[0033] Explanation of reference numerals in the attached drawings: 1. Boiler double hopper; 2. Scaffold; 21. Upright; 22. Horizontal bar; 23. Step; 24. Connecting plate; 25. Hook; 3. Crossbeam; 31. Intermediate beam tube; 32. End beam tube; 4. Base plate; 5. Fixing component; 51. Card seat; 52. Fixing bolt; 53. Fixing hole; 54. Vertical bar; 55. End block; 6. Ear plate; 7. Bolt rod; 8. Rib plate; 9. Drive assembly; 91. Drive shaft; 92. Gear; 93. Rack; 94. Locking component; 941. Ratchet; 942. Spike; 943. Stop block; 944. Compression spring; 10. Liquid level column; 11. Scale; 12. Hose; 13. Wedge pin; 14. Guide bar; 15. Rotating handle. Detailed Implementation
[0034] The following is combined with Figure 1-5 This application is described in further detail.
[0035] This application discloses a maintenance system for a double-bucket boiler.
[0036] Example 1
[0037] Reference Figure 1 A maintenance system for a double-bucket boiler includes scaffolding 2 and crossbeams 3. The scaffolding 2 includes uprights 21, crossbeams 22 and footboards 23. Multiple connecting discs 24 are welded to the uprights 21 along their axial direction. Wedge-shaped pins 13 are inserted into both ends of the crossbeams 22 and are inserted into the connecting discs 24. Hooks 25 are welded to both ends of the footboards 23 and are used to hang on the crossbeams 22.
[0038] Reference Figure 1 and Figure 2 The crossbeam 3 is arranged along the length of the boiler double hopper surface 1. Both ends of the crossbeam 3 are rotatably connected to the bottom plate 4. Ear plates 6 are welded on the bottom plate 4 and on both sides of the crossbeam 3. A bolt rod 7 is inserted between the two ear plates 6. The bolt rod 7 rotates through the crossbeam 3. Multiple stiffening plates 8 are welded between the ear plates 6 and the bottom plate 4. The bottom plates 4 at both ends of the crossbeam 3 are used to abut against the boiler double hopper surface 1. Fixing parts 5 are arranged between the scaffold 2 and the crossbeam 3 for fixing.
[0039] Reference Figure 1 and Figure 2 The fastener 5 includes a bracket 51 bolted to the crossbeam 3. The crossbeam 51 has a U-shaped cross section and a fixing bolt 52 is bolted to the bracket 51. The crossbeam 3 has multiple fixing holes 53 along its length for bolting the fixing bolt 52. A vertical rod 54 is welded to the bracket 51. An end block 55 is threaded onto the vertical rod 54. The upright 21 is slidably sleeved on the vertical rod 54. The end block 55 is used to abut the end of the upright 21.
[0040] The implementation principle of Example 1 is as follows: The maintenance personnel first design the length of the crossbeam 3 according to the location where the scaffolding 2 needs to be erected on the bottom slope of the boiler. Then, the crossbeam 3 is erected between the double bucket surfaces 1 of the boiler, and the bottom plates 4 at both ends of the crossbeam 3 abut against the double bucket surfaces 1 of the boiler. Under the action of the crossbeam 3's own weight, the bottom plates 4 are pressed tightly against the double bucket surfaces 1 of the boiler. After that, the horizontality of the crossbeam 3 is adjusted, and the operation is repeated to place multiple crossbeams 3.
[0041] Place the card holder 51 on the crossbeam 3 and adjust the card holder 51 according to the position of the scaffold 2 as needed. Then fix the card holder 51 on the crossbeam 3 with the fixing bolts 52. Next, put the upright 21 on the vertical bar 54 and rotate the end block 55 so that the upright 21 on the same crossbeam 3 is at the same height. Finally, erect the horizontal bar 22 and the board 23 to complete the erection process of the scaffold 2.
[0042] Example 2
[0043] refer to Figure 3 , Figure 4 and Figure 5 The difference between this embodiment and embodiment 1 is that: the crossbeam 3 includes a middle beam tube 31 and an end beam tube 32, both of which have polygonal cross sections. A liquid level column 10 is bolted to the middle beam tube 31. Several scales 11 are opened on the liquid level column 10 along its axial direction. A flexible hose 12 connects the liquid level columns 10 on two adjacent middle beam tubes 31. The end beam tube 32 is slidably connected to both ends of the middle beam tube 31. The bottom plate 4 is rotatably connected to the end beam tube 32.
[0044] refer to Figure 3 , Figure 4 and Figure 5 A drive assembly 9 for driving the sliding of the end beam tubes 32 is arranged on the intermediate beam tube 31. The drive assembly 9 includes a drive shaft 91 rotatably connected to the intermediate beam tube 31. A gear 92 is coaxially welded on the drive shaft 91. A rack 93 that meshes with the gear 92 is welded on both end beam tubes 32. The racks 93 on the two end beam tubes 32 are arranged symmetrically about the axis of the drive shaft 91. A guide bar 14 with a cross-section of T is welded on the end beam tube 32. The rack 93 and the guide bar 14 slide in engagement.
[0045] refer to Figure 3 , Figure 4 and Figure 5 The intermediate beam tube 31 is provided with a locking element 94 for locking the drive shaft 91. The locking element 94 includes a ratchet 941 coaxially welded to the drive shaft 91, a thorn 942 rotatably connected to the intermediate beam tube 31 and meshing with the ratchet 941, a stop block 943 welded to the intermediate beam tube 31, a compression spring 944 supporting the stop block 943 and the thorn 942, and a rotating handle 15 welded to the drive shaft 91.
[0046] The implementation principle of Example 2 is as follows: According to the location where scaffolding 2 needs to be erected on the slope of the boiler bottom, the maintenance personnel rotate the drive shaft 91 in the forward direction by turning the handle 15. The drive shaft 91 drives the gear 92 to rotate synchronously. Since the racks 93 on the two end beam tubes 32 are arranged symmetrically about the axis of the drive shaft 91, the two end beam tubes 32 slide in opposite directions. During this process, the racks 93 slide relative to the guide bar 14. The guide bar 14 plays a limiting role on the racks 93, reducing the possibility of the racks 93 disengaging from the gear 92.
[0047] The bottom plate 4 on the end beam pipe 32 is made to abut against the double bucket surface 1 of the boiler. When the drive shaft 91 drives the ratchet 941 to rotate, the compression spring 944 always presses the thorn 942 against the ratchet 941 to prevent the drive shaft 91 from rotating in the opposite direction. Then, the maintenance personnel connect the liquid level columns 10 on the two adjacent intermediate beam pipes 31 through the hose 12 and inject liquid into the liquid level columns 10. Then, the maintenance personnel adjust the height difference between the multiple crossbeams 3 by observing the liquid level columns 10 on the different intermediate beam pipes 31 and rotating the drive shaft 91.
[0048] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A maintenance system for a double-bucket boiler, characterized in that: The system includes scaffolding (2) and crossbeams (3). The crossbeams (3) are arranged along the length of the double-bucket surface (1) of the boiler. Both ends of the crossbeams (3) are rotatably equipped with base plates (4). The base plates (4) at both ends of the crossbeams (3) are used to abut against the double-bucket surface (1) of the boiler. Fixing members (5) are provided between the scaffolding (2) and the crossbeams (3) for fixing.
2. The maintenance system for a double-bucket boiler according to claim 1, characterized in that: The scaffold (2) includes uprights (21), horizontal bars (22) and footboards (23). The uprights (21) are provided with multiple connecting plates (24) along their axial direction. The horizontal bars (22) are detachably mounted on the connecting plates (24). The footboards (23) are provided with hooks (25) at both ends. The hooks (25) are used to hang on the horizontal bars (22).
3. The maintenance system for a double-bucket boiler according to claim 2, characterized in that: The fastener (5) includes a detachable bracket (51) mounted on the crossbeam (3), a fixing bolt (52) is bolted to the bracket (51), and a plurality of fixing holes (53) for bolting the fixing bolt (52) are provided on the crossbeam (3) along its length direction. A vertical rod (54) is provided on the bracket (51), and an end block (55) is threaded onto the vertical rod (54). The upright rod (21) is slidably sleeved on the vertical rod (54), and the end block (55) is used to abut against the end of the upright rod (21).
4. The maintenance system for a double-bucket boiler according to claim 1, characterized in that: Ear plates (6) are provided on the bottom plate (4) and on both sides of the crossbeam (3). A bolt rod (7) is passed between the two ear plates (6). The bolt rod (7) rotates through the crossbeam (3). A stiffening plate (8) is provided between the ear plate (6) and the bottom plate (4).
5. A maintenance system for a double-bucket boiler according to claim 1, characterized in that: The crossbeam (3) includes a middle beam tube (31) and an end beam tube (32). The end beam tube (32) is slidably disposed at both ends of the middle beam tube (31). The base plate (4) is rotatably disposed on the end beam tube (32). The middle beam tube (31) is provided with a driving assembly (9) for driving the end beam tube (32) to slide.
6. A maintenance system for a double-bucket boiler according to claim 5, characterized in that: The drive assembly (9) includes a drive shaft (91) rotatably mounted on the intermediate beam tube (31), a gear (92) coaxially mounted on the drive shaft (91), and racks (93) meshing with the gears (92) on both end beam tubes (32). The racks (93) on the two end beam tubes (32) are arranged symmetrically about the axis of the drive shaft (91). A locking member (94) for locking the drive shaft (91) is provided on the intermediate beam tube (31).
7. A maintenance system for a double-bucket boiler according to claim 6, characterized in that: The locking member (94) includes a ratchet (941) coaxially mounted on the drive shaft (91), a thorn (942) rotatably mounted on the intermediate beam tube (31) and meshing with the ratchet (941), a stop (943) mounted on the intermediate beam tube (31), and a compression spring (944) supporting the stop (943) and the thorn (942).
8. A maintenance system for a double-bucket boiler according to claim 7, characterized in that: A liquid level column (10) is provided on the intermediate beam tube (31), and several scales (11) are provided on the liquid level column (10) along its axial direction. A flexible tube (12) is connected between the liquid level columns (10) on two adjacent intermediate beam tubes (31).