Tooling support for assembling boiler flue barrel on ground

Abstract

This utility model discloses a tooling support for assembling boiler flue gas duct bodies on the ground, realizing the reusability of the support; it includes a "well"-shaped I-beam base (1), with a first diagonal support rod (6) and a first telescopic horizontal support rod (11) respectively hinged on the right longitudinal support shaft (5), and a first longitudinal U-shaped locking block (8) connected to the top of the first diagonal support rod (6); a first transverse U-shaped locking block (18) is connected to the left end of the first telescopic horizontal support rod (11), and a first vertical channel steel reinforcing rib (10) is locked between the first transverse U-shaped locking block (18) and the first longitudinal U-shaped locking block (8), and a right vertical plate (12) of the flue gas duct is provided on the inner side of the first vertical channel steel reinforcing rib (10); the bottom end of the right vertical plate (12) of the flue gas duct is welded to the right end of the bottom plate (9) of the flue gas duct body; the flue gas duct combination support of this utility model is simple to assemble and disassemble, and can be recycled multiple times.

Description

Technical Field

[0001] This utility model relates to a power plant flue gas duct, and more particularly to an assembly tooling frame used when assembling a boiler flue gas duct cylinder on the ground. Background Technology

[0002] As the main channel for flue gas flow, the assembly quality of the boiler flue gas duct directly affects the flow state of the flue gas and the combustion efficiency of the boiler, and directly impacts the operational stability of the boiler. During the assembly process, it is crucial to ensure smooth flue gas flow within the duct, minimizing resistance and eddies. Damage to the base material during assembly may lead to problems such as poor flue gas flow and pressure fluctuations, thus affecting the stable operation of the boiler. In on-site construction, the assembly of the boiler flue gas duct is carried out on the ground. Assembly fixtures are designed on the ground according to the dimensions of the flue gas duct to be assembled. One section of the flue gas duct is fixed to one fixture, and another section is fixed to another fixture. The two sections are then joined together and welded. Finally, the welded flue gas duct is hoisted and assembled to the tail end of the boiler. Because different flue gas ducts have different dimensions, different fixtures need to be designed, resulting in time-consuming and labor-intensive work, high material costs for the fixtures, and the inability to reuse the fixtures. How can a suitable fixture be designed? The need for easily disassembled, modular tooling supports that can be reused has become a problem that needs to be solved on site. Summary of the Invention

[0003] This utility model provides a tooling support for assembling boiler flue gas duct bodies on the ground, realizing the reusability of the support.

[0004] This utility model solves the above technical problems through the following technical solution: A tooling support for assembling boiler flue gas duct bodies on the ground includes a "well"-shaped I-beam base. A pair of left longitudinal support shaft through holes are provided at the left ends of the two parallel crossbeams of the "well"-shaped I-beam base, and a pair of right longitudinal support shaft through holes are provided at the right ends of the two parallel crossbeams of the "well"-shaped I-beam base. A left longitudinal support shaft is installed in the pair of left longitudinal support shaft through holes, and a right longitudinal support shaft is installed in the pair of right longitudinal support shaft through holes. The flue gas duct body is mounted on the "well"-shaped I-beam base. The bottom plate has a first diagonal brace and a first telescopic horizontal brace hinged to the right longitudinal support shaft. A first longitudinal U-shaped locking block is connected to the top of the first diagonal brace. A first transverse U-shaped locking block is connected to the left end of the first telescopic horizontal brace. A first vertical channel steel reinforcing rib is locked between the first transverse U-shaped locking block and the first longitudinal U-shaped locking block. A vertical plate on the right side of the flue is provided inside the first vertical channel steel reinforcing rib. The bottom end of the vertical plate on the right side of the flue is welded to the right end of the bottom plate of the flue body.

[0005] On the right side of the front crossbeam of the "well"-shaped I-beam base in front of the first diagonal brace, a first movable angle steel bracket and a second movable angle steel bracket are respectively provided. A first fixing screw is provided between the first movable angle steel bracket and the front crossbeam of the "well"-shaped I-beam base, and a second fixing screw is provided between the second movable angle steel bracket and the front crossbeam of the "well"-shaped I-beam base. A second diagonal brace is connected to the first movable angle steel bracket. A second longitudinal U-shaped bracket is provided at the top of the second diagonal brace. A second transverse U-shaped bracket is provided on the second movable angle steel bracket. A second vertical channel steel reinforcing rib is provided between the second transverse U-shaped bracket and the second longitudinal U-shaped bracket. The second vertical channel steel reinforcing rib is welded to the vertical plate on the right side of the flue.

[0006] A lower end shaft hole is provided at the bottom of the first diagonal brace, and the first diagonal brace is movably connected to the right longitudinal support shaft through the lower end shaft hole; the first longitudinal U-shaped locking block is hinged to the top of the first diagonal brace.

[0007] The first telescopic horizontal support is composed of a horizontal channel steel telescopic frame and embedded channel steel strips. A through hole for the tail support shaft of the embedded channel steel strip is provided at the outer end of the embedded channel steel strip. The right end of the embedded channel steel strip is movably connected to the right longitudinal support shaft through the through hole of the tail support shaft. An adjustable lifting support leg is provided at the lower left end of the horizontal channel steel telescopic frame. A second transverse U-shaped locking block hinge seat is provided at the upper left end of the horizontal channel steel telescopic frame. A second transverse U-shaped locking block is hinged on the second transverse U-shaped locking block hinge seat. A telescopic fixing screw is provided between the horizontal channel steel telescopic frame and the embedded channel steel strips.

[0008] The flue gas duct assembly bracket provided by this utility model can avoid damage to the base material during assembly, providing convenience for the assembly process and eliminating the need for welding and support. At the same time, the bottom, supports, and slots of this utility model are all adjustable, which can better adapt to flue gas ducts of different sizes. The flue gas duct assembly bracket of this utility model is simple to assemble and disassemble, can be reused multiple times, and can adapt to the assembly work of various types of flue gas ducts. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the "well"-shaped I-beam base 1 of this utility model; Figure 3 This is a schematic diagram of the overall support structure of this utility model; Figure 4 This is a schematic diagram of the structure of the first inclined support rod 6 of this utility model; Figure 5 This is a schematic diagram of the structure of the first longitudinal U-shaped card block 8 of this utility model; Figure 6 This is a structural schematic diagram of the first retractable horizontal support rod 11 of this utility model; Figure 7 This is a schematic diagram of the structure of the first transverse U-shaped card block 18 of this utility model. Detailed Implementation

[0010] The present invention will now be described in detail with reference to the accompanying drawings: A tooling support for assembling boiler flue gas duct bodies on the ground includes a "well"-shaped I-beam base 1. The "well"-shaped I-beam base 1 is composed of several I-beam segments spliced ​​together, facilitating disassembly and assembly, and ensuring that the top surface of the "well"-shaped I-beam base 1 is a horizontal plane. A pair of left longitudinal support shaft through holes 2 are provided at the left ends of the two parallel crossbeams of the "well"-shaped I-beam base 1, and a pair of right longitudinal support shaft through holes 3 are provided at the right ends of the two parallel crossbeams of the "well"-shaped I-beam base 1. A left longitudinal support shaft 4 is movably threaded through the pair of left longitudinal support shaft through holes 2, and a right longitudinal support shaft 5 is movably threaded through the pair of right longitudinal support shaft through holes 3. The "well"-shaped I-beam base 1 is equipped with... The bottom plate 9 of the flue gas duct body is hinged to the right longitudinal support shaft 5 with a first diagonal bracing rod 6 and a first telescopic horizontal bracing rod 11 respectively. A first longitudinal U-shaped locking block 8 is connected to the top of the first diagonal bracing rod 6. A first transverse U-shaped locking block 18 is connected to the left end of the first telescopic horizontal bracing rod 11. A first vertical channel steel reinforcing rib 10 is locked between the first transverse U-shaped locking block 18 and the first longitudinal U-shaped locking block 8. During on-site assembly, the first vertical channel steel reinforcing rib 10 is first positioned and fixed, and then the right vertical plate 12 of the flue gas duct is positioned and welded against the inner vertical surface of the first vertical channel steel reinforcing rib 10. The bottom end of the right vertical plate 12 of the flue gas duct is welded to the right end of the bottom plate 9 of the flue gas duct body.

[0011] On the right side of the front crossbeam of the "well"-shaped I-beam base 1 in front of the first diagonal brace 6, a first movable angle steel bracket 20 and a second movable angle steel bracket 24 are respectively provided. A first fixing screw 21 is provided between the first movable angle steel bracket 20 and the front crossbeam of the "well"-shaped I-beam base 1, and a second fixing screw 25 is provided between the second movable angle steel bracket 24 and the front crossbeam of the "well"-shaped I-beam base 1. A second diagonal brace 22 is connected to the first movable angle steel bracket 20. A second longitudinal U-shaped bracket 23 is provided at the top of the second diagonal brace 22. A second transverse U-shaped bracket 26 is provided on the second movable angle steel bracket 24. A second vertical channel steel reinforcing rib 27 is provided between the second transverse U-shaped bracket 26 and the second longitudinal U-shaped bracket 23. The second vertical channel steel reinforcing rib 27 is welded to the vertical plate 12 on the right side of the flue. Adjust the positions of the first movable angle steel bracket 20 and the second movable angle steel bracket 24 respectively to accurately position the second vertical channel steel reinforcing rib 27 that is engaged with the second longitudinal U-shaped bracket 23 and the second transverse U-shaped bracket 26. During on-site construction, first position the second vertical channel steel reinforcing rib 27 and the first vertical channel steel reinforcing rib 10, then abut the right vertical plate 12 of the flue between the inner side of the second vertical channel steel reinforcing rib 27 and the inner side of the first vertical channel steel reinforcing rib 10 to ensure accurate positioning of the right vertical plate 12 of the flue. Finally, weld the bottom end of the right vertical plate 12 of the flue to the right end of the bottom plate 9 of the flue cylinder. The U-shaped groove of the second longitudinal U-shaped bracket 23 is longitudinally engaged with the outer plate of the second vertical channel steel reinforcing rib 27, while the second transverse U-shaped bracket 26 is transversely engaged with the entire second vertical channel steel reinforcing rib 27 in its U-shaped opening.

[0012] A lower end shaft hole 7 is provided at the bottom end of the first diagonal support rod 6, and the first diagonal support rod 6 is movably connected to the right longitudinal support shaft 5 through the lower end shaft hole 7; the first longitudinal U-shaped locking block 8 is hinged to the top end of the first diagonal support rod 6; bolt through holes are provided at equal intervals on the first diagonal support rod 6, so that two first diagonal support rods 6 can be overlapped together, and the length of the first diagonal support rod 6 can be adjusted by corresponding different sets of bolt through holes.

[0013] The first telescopic horizontal support rod 11 is composed of a horizontal channel steel telescopic frame 13 and an embedded channel steel strip 14. A through hole 15 for the tail support shaft of the embedded channel steel strip is provided at the outer end of the embedded channel steel strip 14. The right end of the embedded channel steel strip 14 is movably connected to the right longitudinal support shaft 5 through the through hole 15 for the tail support shaft. An adjustable lifting support leg 19 is provided at the lower left end of the horizontal channel steel telescopic frame 13. A second transverse U-shaped locking block hinge seat 17 is provided at the upper left end of the horizontal channel steel telescopic frame 13. A second transverse U-shaped locking block is hinged on the second transverse U-shaped locking block hinge seat 17. A telescopic fixing screw 16 is provided between the horizontal channel steel telescopic frame 13 and the embedded channel steel strip 14. This adjustable length structure greatly facilitates the adjustment of the on-site flue gas duct docking accuracy.

[0014] Two or more first diagonal bracing rods 6 with the same structure can be set on the right longitudinal support shaft 5, which can be determined according to the length of the flue; second diagonal bracing rods 22 with the same structure are set on the right side of the front and rear crossbeams of the "well" shaped I-beam base 1; the first diagonal bracing rods 6, the first telescopic horizontal support rod 11, the second diagonal bracing rods 22 and the second transverse U-shaped bracket 26 together complete the positioning of the vertical plate 12 on the right side of the flue; the same diagonal bracing positioning mechanism is set on the left side of the "well" shaped I-beam base 1, which completes the positioning of the vertical plate on the left side of the flue, thereby realizing the positioning and assembly of the four welding surfaces of the flue cylinder.

Claims

1. A tooling support for assembling boiler flue gas duct bodies on the ground, comprising a "well"-shaped I-beam base (1), a pair of left longitudinal support shaft through holes (2) provided at the left ends of the two parallel crossbeams of the "well"-shaped I-beam base (1), a pair of right longitudinal support shaft through holes (3) provided at the right ends of the two parallel crossbeams of the "well"-shaped I-beam base (1), a left longitudinal support shaft (4) provided in the pair of left longitudinal support shaft through holes (2), a right longitudinal support shaft (5) provided in the pair of right longitudinal support shaft through holes (3), and a flue gas duct body bottom plate (9) provided on the "well"-shaped I-beam base (1), characterized in that, A first diagonal bracing rod (6) and a first telescopic horizontal bracing rod (11) are respectively hinged on the right longitudinal support shaft (5). A first longitudinal U-shaped locking block (8) is connected to the top of the first diagonal bracing rod (6). A first transverse U-shaped locking block (18) is connected to the left end of the first telescopic horizontal bracing rod (11). A first vertical channel steel reinforcing rib (10) is locked between the first transverse U-shaped locking block (18) and the first longitudinal U-shaped locking block (8). A right vertical plate (12) of the flue is provided on the inner side of the first vertical channel steel reinforcing rib (10). The bottom end of the right vertical plate (12) of the flue is welded to the right end of the bottom plate (9) of the flue cylinder.

2. The tooling support for assembling boiler flue gas duct bodies on the ground according to claim 1, characterized in that, On the right side of the front crossbeam of the "well"-shaped I-beam base (1) in front of the first diagonal bracing rod (6), a first movable angle steel bracket (20) and a second movable angle steel bracket (24) are respectively provided. A first fixed set screw (21) is provided between the first movable angle steel bracket (20) and the front crossbeam of the "well"-shaped I-beam base (1), and a second fixed set screw (25) is provided between the second movable angle steel bracket (24) and the front crossbeam of the "well"-shaped I-beam base (1); A second diagonal brace (22) is connected to the movable angle steel bracket (20). A second longitudinal U-shaped bracket (23) is provided at the top of the second diagonal brace (22). A second transverse U-shaped bracket (26) is provided on the second movable angle steel bracket (24). A second vertical channel steel reinforcing rib (27) is provided between the second transverse U-shaped bracket (26) and the second longitudinal U-shaped bracket (23). The second vertical channel steel reinforcing rib (27) is welded to the vertical plate (12) on the right side of the flue.

3. The tooling support for assembling boiler flue gas duct bodies on the ground according to claim 1, characterized in that, The first inclined support rod (6) has a lower end shaft hole (7) at its bottom end. The first inclined support rod (6) is movably connected to the right longitudinal support shaft (5) through the lower end shaft hole (7). The first longitudinal U-shaped locking block (8) is hinged to the top of the first inclined support rod (6).

4. The tooling support for assembling boiler flue gas duct shells on the ground according to claim 1, characterized in that, The first telescopic horizontal support rod (11) is composed of a horizontal channel steel telescopic frame (13) and an embedded channel steel strip (14). An embedded channel steel strip tail support shaft through hole (15) is provided at the outer end of the embedded channel steel strip (14). The right end of the embedded channel steel strip (14) is movably connected to the right longitudinal support shaft (5) through the tail support shaft through hole (15). An adjustable lifting support leg (19) is provided at the lower left end of the horizontal channel steel telescopic frame (13). A second transverse U-shaped locking block hinge seat (17) is provided at the upper left end of the horizontal channel steel telescopic frame (13). A second transverse U-shaped locking block is hinged on the second transverse U-shaped locking block hinge seat (17). A telescopic fixing screw (16) is provided between the horizontal channel steel telescopic frame (13) and the embedded channel steel strip (14).

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