An automatic welding device for membrane water-cooled wall fins

Abstract

The application discloses a kind of membrane water-cooled wall fin automatic welding device, also includes: base;Welding structure, welding structure is set to base;Multiple lower fixed parts, multiple lower fixed parts are spaced apart to be set to base, and lower fixed part part extends into water-cooled wall pipe, to realize the fixation to water-cooled wall pipe;Lower fixed seat, the bottom of lower fixed part is provided with lower fixed seat, and lower fixed seat is set to base;Ceramic gasket, ceramic gasket is set between two adjacent water-cooled wall pipes.In the process that multiple water-cooled wall pipes are welded to form tube row, multiple water-cooled wall pipes are installed on multiple lower fixed parts one by one, and one side of two adjacent flat steel fins is bonded to form a whole by ceramic gasket, and welding structure is used for welding the other side of two adjacent flat steel fins, so that the weld root of two adjacent flat steel fins can form good penetration and forming effect under the condition of single-sided welding.The welding of water-cooled wall pipe is automatically completed by the above structure, and the welding efficiency is high.

Description

Technical Field

[0001] This application relates to the field of water-cooled wall fin welding technology, and in particular to an automated welding device for membrane water-cooled wall fins. Background Technology

[0002] Membrane water-cooled walls refer to water-cooled walls composed of airtight tube panels welded together from water-cooled wall tubes. Each water-cooled wall tube consists of a tube and flat steel fins on both sides. Membrane water-cooled walls ensure good airtightness of the furnace, significantly reducing the air leakage coefficient in negative pressure boilers and improving combustion conditions within the furnace.

[0003] Membrane water-cooled walls, as one of the main heating surfaces of large boilers, have been widely used in China due to their advantages such as improving furnace sealing performance, increasing radiant heating surface, and improving boiler thermal efficiency.

[0004] In existing technologies, the assembly and welding of membrane water-cooled walls mostly rely on manual double-sided welding, which is inefficient.

[0005] Therefore, it is necessary to propose an automated welding device for membrane water-cooled wall fins to perform automated welding of membrane water-cooled walls, which has become an important technical problem that urgently needs to be solved. Utility Model Content

[0006] This application provides an automated welding device for membrane water-cooled wall fins, which aims to solve the problem that in the prior art, the assembly and welding of membrane water-cooled walls mostly relies on manual double-sided welding, which is inefficient.

[0007] To achieve the above objectives, this application proposes an automated welding device for membrane water-cooled wall fins, which further includes: a base; a welding structure disposed on the base; multiple lower fixing members disposed at intervals on the base, with portions of the lower fixing members extending into the water-cooled wall tubes to fix the water-cooled wall tubes; a lower fixing seat disposed at the bottom of the lower fixing members and disposed on the base; and a ceramic gasket disposed between adjacent water-cooled wall tubes.

[0008] In some embodiments, the system further includes: a support plate disposed on the base; a mounting plate disposed on the top of the support plate; a plurality of upper fixing members movably disposed on the mounting plate, with portions of the upper fixing members extending into the water-cooled wall tube; and an upper fixing seat disposed on the upper fixing members.

[0009] In some embodiments, the system further includes a plurality of clearance slots, which are spaced apart on the support plate.

[0010] In some embodiments, the welding structure includes: a support disposed on a base; a transverse platform disposed on the support; a transverse seat movably disposed on the transverse platform; a longitudinal platform disposed on the transverse seat; a longitudinal seat movably disposed on the longitudinal platform; a vertical rod movably disposed on the longitudinal seat; and a welding head disposed on the vertical rod.

[0011] In some embodiments, the welding structure further includes: a transverse drive, the transverse drive being disposed on a transverse seat; a first rack, the first rack being disposed on the transverse table; a first gear, the first gear being connected to the transverse drive, the output end of the first gear being connected to the transverse drive, and the first gear being meshed with the first rack.

[0012] In some embodiments, the welding structure further includes: a longitudinal drive, the longitudinal drive being disposed on a longitudinal seat; a second rack, the second rack being disposed on a longitudinal stage; and a second gear, the second gear being connected to the longitudinal drive and meshing with the second rack.

[0013] In some embodiments, the welding structure further includes: a vertical movement drive disposed on a longitudinal movement seat; a third rack disposed on a vertical movement rod; and a third gear connected to the vertical movement drive and meshing with the third rack.

[0014] This application proposes an automated welding device for membrane water-cooled wall fins, comprising: a base; a welding structure disposed on the base; multiple lower fixing members spaced apart on the base, with portions of the lower fixing members extending into the water-cooled wall tubes to fix them; a lower fixing seat disposed at the bottom of the lower fixing members and disposed on the base; and a ceramic gasket placed between adjacent water-cooled wall tubes. During the welding of multiple water-cooled wall tubes to form a tube bank, the tubes are sequentially installed onto the multiple lower fixing members, and one side of two adjacent flat steel fins is bonded together using the ceramic gasket to form a single unit. The welding structure is used to weld the other side of the two adjacent flat steel fins, enabling good penetration and forming effect at the weld root of the two adjacent flat steel fins under single-sided welding conditions. This structure automates the welding of the water-cooled wall tubes, resulting in high welding efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, wherein: Figure 1This is a schematic diagram of the structure of an automated welding device for membrane water-cooled wall fins from one perspective in one embodiment of this application; Figure 2 for Figure 1 Enlarged view of part A in the middle; Figure 3 for Figure 1 Enlarged view of part B in the middle; Figure 4 for Figure 1 Enlarged view of a section in the middle C; Figure 5 This is a schematic diagram of the structure of an automated welding device for membrane water-cooled wall fins from one perspective in one embodiment of this application.

[0016] In the diagram: 1. Base; 2. Counterweight platform; 3. Protective cover; 4. Vertical moving rod; 5. Longitudinal moving platform; 6. Mounting plate; 7. Upper fixing component; 8. Upper fixing seat; 9. Support plate; 10. Welding head; 11. Support; 12. Auxiliary support arm; 13. Horizontal moving platform; 14. Vertical moving drive; 15. Second dovetail slider; 16. Longitudinal moving seat; 17. Longitudinal moving drive; 18. Horizontal moving drive; 19. First dovetail slide rail; 20. First rack; 21. Horizontal moving seat; 22. Second rack; 23. Second dovetail slide rail; 24. Lower fixing seat; 25. Lower fixing component; 26. Water-cooled wall pipe; 261. Bevel; 27. Reinforcing rib; 28. Leaving groove. Detailed Implementation

[0017] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0018] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0019] It should also be noted that when a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component present. When a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component present.

[0020] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0021] See Figure 1 , Figure 3 and Figure 5 As shown, this application proposes an automated welding device for membrane water-cooled wall fins, which further includes: a base 1; a welding structure disposed on the base 1; multiple lower fixing members 25, which are spaced apart on the base 1, with a portion of the lower fixing members 25 extending into the water-cooled wall tube 26 to fix the water-cooled wall tube 26; a lower fixing seat 24, which is disposed at the bottom of the lower fixing members 25 and is disposed on the base 1; and a ceramic gasket, which is disposed between two adjacent water-cooled wall tubes 26.

[0022] The base 1 is the structural foundation of an automated welding device for membrane water-cooled wall fins. All other structures on the automated welding device are directly or indirectly mounted on the base 1. The water-cooled wall tube 26 includes a tube and flat steel fins on both sides of the tube. The flat steel fins of adjacent water-cooled wall tubes 26 are connected by welding to form a tube bank composed of multiple water-cooled wall tubes 26. Through holes are provided inside the tubes for water flow. During the assembly of the membrane water-cooled wall, multiple tube banks are connected together to form the membrane water-cooled wall.

[0023] The lower fixing member 25 is columnar, with an outer diameter equal to the diameter of the through hole inside the tube. The tube is fixed by extending the lower fixing member 25 into the tube. The gap between two adjacent fixing members is equal to the gap between two adjacent water-cooled wall tubes 26. The lower fixing seat 24 is detachably connected to the base 1 by screws. In actual use, the gap between two adjacent fixing members can be adjusted according to the specifications of the membrane water-cooled wall to match the gap between two adjacent water-cooled wall tubes 26.

[0024] In this design, two adjacent flat steel fins are bonded together on one side using a ceramic backing to form a single unit, while the other side is welded together using a welded structure. The backing material is a ceramic material with high thermal stability, low friction, and good chemical stability, along with heat-absorbing pressure-sensitive aluminum foil tape. Before welding, the ceramic material is precisely bonded to the back of the weld between the two adjacent flat steel fins using the heat-absorbing pressure-sensitive aluminum foil tape. The flat steel fins are equipped with bevels 261 to accommodate the ceramic backing, ensuring a tight fit between the ceramic material and the bevels 261, without gaps or misalignment. As a backing material on the back of the weld, the ceramic material naturally blocks molten iron from penetrating and forming a weld when it reaches the backing. Thus, the ceramic backing not only prevents molten iron penetration but also improves the sealing performance of the weld, making the welding of the bottom layer easier and reducing defects.

[0025] In this embodiment, a water-cooled wall tube 26 can be fixed by multiple lower fixing members 25 and ceramic gaskets. Alternatively, an anti-rotation protrusion can be provided on the lower fixing base 24, and a matching anti-rotation groove can be provided on the bottom of the flat steel fin to prevent the water-cooled wall tube 26 from rotating. When the through-hole cross-section of the tube is elliptical, the lower fixing member 25 is set as a matching elliptical cylinder, and in this case, the anti-rotation protrusion and anti-rotation groove are not required.

[0026] Specifically, during the welding of multiple water-cooled wall tubes 26 to form a tube bank, the multiple water-cooled wall tubes 26 are installed one by one onto multiple lower fixing components 25, and one side of two adjacent flat steel fins is bonded together with a ceramic gasket to form a whole. The welding structure is used to weld the other side of the two adjacent flat steel fins, so that the root of the weld between the two adjacent flat steel fins can form a good penetration and forming effect when welded on one side. The welding of the water-cooled wall tubes 26 is automatically completed through the above structure, resulting in high welding efficiency.

[0027] See Figure 1 , Figure 4 and Figure 5 As shown, in some embodiments, the system further includes: a support plate 9, which is disposed on the base 1 and mounted to the base 1 by fasteners; a mounting plate 6, which is disposed on top of the support plate 9 and has guide holes for the upper fixing members 7 to pass through; multiple upper fixing members 7, which are movably disposed on the mounting plate 6 and partially extend into the water-cooled wall tube 26; and an upper fixing seat 8, which is disposed on the upper fixing members 7 and connected to the mounting plate 6 by screws. After the upper fixing members 7 extend into the tube, the tube is fixed by the upper fixing seat 8. The multiple upper fixing members 7 extending into the tube provide multiple fixation for the tube, improving the stability of the water-cooled wall tube 26 during welding.

[0028] In this embodiment, the support plate 9 is further provided with reinforcing ribs 27 to enhance its strength. The mounting plate 6 is movably mounted on the support plate 9, and a corresponding linear drive is provided on the support plate 9. The linear drive can be a hydraulic cylinder, pneumatic cylinder, or electric cylinder, etc., to drive the mounting plate 6 to lift or lower. This automatic multiple fixing of the pipe further improves processing efficiency.

[0029] See Figure 1 , Figure 3 , Figure 4 and Figure 5 As shown, in some embodiments, it further includes a plurality of relief grooves 28, which are spaced apart on the support plate 9. The plurality of relief grooves 28 facilitate the bonding of ceramic gaskets to one side of two adjacent flat steel fins.

[0030] See Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments, the welding structure includes: a support 11, which is disposed on a base 1; preferably, two supports 11 are provided, and an auxiliary support arm 12 is also provided on the support 11, one end of the auxiliary support arm 12 being connected to the support 11 and the other end of the auxiliary support arm 12 being connected to the base 1; a transverse shift stage 13, which is disposed on the support 11; protective covers 3 are provided on both sides of the transverse shift stage 13, and displacement sensors are provided inside the protective covers 3, which are used to identify the position of the transverse shift seat 21; and a transverse shift seat 21, which is movably disposed on the transverse shift stage 13; the transverse shift seat 21 can move laterally back and forth on the transverse shift stage 13 to adjust the lateral position of the welding head 10. A longitudinal moving platform 5 is mounted on a transverse moving base 21 using screws or other fasteners. A longitudinal moving base 16 is movably mounted on the longitudinal moving platform 5 and can reciprocate longitudinally on the platform to change the longitudinal position of the welding head 10. A vertical moving rod 4 is movably mounted on the longitudinal moving base 16 and can reciprocate vertically on the base to change the vertical position of the welding head 10. The welding head 10 is mounted on the vertical moving rod 4. By adjusting the transverse, longitudinal, and vertical positions of the welding head 10, the welding of adjacent water-cooled wall tubes 26 is automatically completed, improving welding efficiency.

[0031] The welding head 10 includes at least a welding power source, a welding torch, a wire feeding structure, and an auxiliary structure. Since the welding head 10 is a mature existing technology and is not the core improvement point of this application, the specific structure of the welding head 10 is not limited here.

[0032] The horizontal moving platform 13 is equipped with a first dovetail slide rail 19, and the horizontal moving base 21 is equipped with a first dovetail slider adapted to the first dovetail slide rail 19. The cooperation between the first dovetail slide rail 19 and the first dovetail slider improves the stability and accuracy of the movement direction of the horizontal moving base 21. The vertical moving platform 5 is equipped with a second dovetail slide rail 23, and the vertical moving base 16 is equipped with a second dovetail slider 15 adapted to the second dovetail slide rail 23. The cooperation between the second dovetail slide rail 23 and the second dovetail slider 15 improves the stability and accuracy of the movement direction of the vertical moving base 16. The vertical moving rod 4 is equipped with a third dovetail slide rail, and the vertical moving base 16 is equipped with a third dovetail slider adapted to the third dovetail slide rail. The cooperation between the third dovetail slide rail and the third dovetail slider improves the stability and accuracy of the movement direction of the vertical moving rod 4.

[0033] Wherein, the horizontal direction is the length direction of the base 1, the vertical direction is the width direction of the base 1, and the vertical direction is the height direction of the base 1. A counterweight platform 2 is provided at the end of the longitudinal moving platform 5, and counterweight blocks can be installed on the counterweight platform 2 to balance the load at both ends of the longitudinal moving platform 5.

[0034] See Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments, the welding structure further includes: a transverse drive 18, which is disposed on the transverse base 21; a first rack 20, which is disposed on the transverse stage 13; and a first gear, which is connected to the transverse drive 18, with its output end connected to the transverse drive 18 and meshing with the first rack 20. The transverse drive 18 is a motor, and its output end is connected to a first gear shaft via a coupling. The first gear is disposed on the first gear shaft, and the first gear is driven to rotate by the transverse drive 18, thereby driving the transverse base 21 to move laterally.

[0035] See Figure 1 , Figure 2 and Figure 5 As shown, in some embodiments, the welding structure further includes: a longitudinal drive 17, which is disposed on the longitudinal support 16; a second rack 22, which is disposed on the longitudinal stage 5; and a second gear, which is connected to the longitudinal drive 17 and meshes with the second rack 22. The longitudinal drive 17 is a motor, and its output end is connected to a second gear shaft via a coupling. The second gear is disposed on the second gear shaft. The longitudinal drive 17 drives the second gear to rotate, thereby driving the longitudinal support 16 to move longitudinally.

[0036] See Figure 1 , Figure 2 and Figure 5As shown, in some embodiments, the welding structure further includes: a vertical movement drive 14, which is disposed on the longitudinal movement seat 16; a third rack, which is disposed on the vertical movement rod 4; and a third gear, which is connected to the vertical movement drive 14 and meshes with the third rack. The vertical movement drive 14 is a motor, and its output end is connected to a third gear shaft via a coupling. A third gear is disposed on the third gear shaft. The vertical movement drive 14 drives the third gear to rotate, thereby driving the vertical movement rod 4 to move vertically.

[0037] The above description is only a part or preferred embodiment of this application. Neither the text nor the drawings should limit the scope of protection of this application. All equivalent structural transformations made using the content of this application's specification and drawings under the overall concept of this application, or direct / indirect applications in other related technical fields, are included within the scope of protection of this application.

Claims

1. An automated welding device for membrane water-cooled wall fins, characterized in that, Also includes: Base (1); A welding structure is disposed on the base (1). Multiple lower fixing members (25) are spaced apart on the base (1). The lower fixing members (25) extend into the water-cooled wall tube (26) to fix the water-cooled wall tube (26). The lower fixing seat (24) is provided at the bottom of the lower fixing member (25) and the lower fixing seat (24) is provided on the base (1); A ceramic gasket is provided between two adjacent water-cooled wall tubes (26).

2. The automated welding device for membrane water-cooled wall fins according to claim 1, characterized in that, Also includes: Support plate (9), the support plate (9) is disposed on the base (1); Mounting plate (6), which is disposed on top of the support plate (9); Multiple upper fixing members (7) are movably disposed on the mounting plate (6), and the upper fixing members (7) partially extend into the water-cooled wall tube (26). Upper fixing seat (8) is disposed on the upper fixing member (7).

3. The automated welding device for membrane water-cooled wall fins according to claim 2, characterized in that, Also includes: Multiple clearance slots (28) are spaced apart on the support plate (9).

4. The automated welding device for membrane water-cooled wall fins according to claim 1, characterized in that, The welded structure includes: Support (11), the support (11) is disposed on the base (1); A transverse moving platform (13) is provided on the support (11); A transverse sliding seat (21) is movably disposed on the transverse sliding stage (13); The longitudinal shifting stage (5) is disposed on the transverse shifting seat (21); The longitudinal shift seat (16) is movably disposed on the longitudinal shift stage (5); Vertical moving rod (4), which is movably disposed on the longitudinal moving seat (16); Welding head (10), the welding head (10) is disposed on the vertical moving rod (4).

5. The automated welding device for membrane water-cooled wall fins according to claim 4, characterized in that, The welded structure also includes: A transverse drive (18) is disposed on the transverse base (21); The first rack (20) is provided on the transverse stage (13); The first gear is connected to the transverse drive (18), the output end of the first gear is connected to the transverse drive (18), and the first gear meshes with the first rack (20).

6. The automated welding device for membrane water-cooled wall fins according to claim 4, characterized in that, The welded structure also includes: A longitudinal traverse drive (17) is disposed on the longitudinal traverse seat (16); The second rack (22) is disposed on the longitudinal moving platform (5); The second gear is connected to the longitudinal drive (17) and meshes with the second rack (22).

7. The automated welding device for membrane water-cooled wall fins according to claim 4, characterized in that, The welded structure also includes: Vertical movement drive (14), the vertical movement drive (14) is disposed on the longitudinal movement seat (16); The third rack is disposed on the vertical moving rod (4). The third gear is connected to the vertical drive (14) and meshes with the third rack.

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