Groove alignment guide structure for welding header of once-through boiler

Abstract

The utility model relates to the production technical field of once-through boiler, concretely to the bevel alignment guide structure of once-through boiler header welding, including two pipe body clamping pieces, two pipe body clamping pieces are connected through angle adjusting spare, and pipe body clamping piece includes U shaped board, and the bottom of U shaped board inner wall is equipped with V shaped fixed clamping plate, and the top of U shaped board is connected with threaded compression rod, and the bottom end of threaded compression rod is rotatably connected with U shaped connecting block, and the both ends of U shaped connecting block are commonly connected with V shaped movable clamping plate, and angle adjusting spare includes first strip board, and the right end of first strip board is rotatably connected with U shaped rotating plate through threaded column, and the right side of U shaped rotating plate is equipped with second strip board, and the outside of second strip board is sleeved with U shaped seat, and the back side of U shaped seat is connected with compression bolt, this bevel alignment guide structure of once-through boiler header welding, through the combination design of pipe body clamping piece and angle adjusting spare, can adapt to different specifications header.

Description

Technical Field

[0001] This utility model relates to the field of once-through boiler manufacturing technology, specifically to a bevel alignment guide structure for welding the header of a once-through boiler. Background Technology

[0002] Once-through boilers are highly efficient and compact thermal energy conversion devices widely used in industrial production and power generation. Their working principle involves heating water into steam through pipes inside the boiler, thus converting thermal energy into mechanical energy. Due to their compact structure, high thermal efficiency, and fast response speed, once-through boilers have become the mainstream choice in modern boiler design and are increasingly favored by enterprises and industries.

[0003] In the manufacturing process of once-through boilers, the header, as a key component, is responsible for connecting multiple pipes and collecting water and steam. Its welding process is crucial to the overall performance and safety of the boiler. However, there are many difficulties in aligning the bevels during the welding process of the header. First, because headers usually have complex geometries and multiple bevel designs, aligning the bevels between components during welding is more difficult, easily leading to positional misalignment and inconsistent angles, thus affecting the quality of the weld.

[0004] Furthermore, existing welding equipment is often general-purpose, lacking specificity and precision. Operators find it difficult to achieve accurate bevel alignment using traditional tools, which not only affects welding results but may also pose potential risks for subsequent use and increase maintenance costs. To address these issues, this invention proposes a bevel alignment guide structure for welding headers in once-through boilers. The aim is to provide an efficient and precise bevel alignment solution through structural optimization, thereby improving welding quality and ensuring the safety and reliability of once-through boilers. Utility Model Content

[0005] The purpose of this invention is to provide a bevel alignment guide structure for welding headers of once-through boilers, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The bevel alignment guide structure for welding headers in a once-through boiler includes two pipe clamping components for clamping the header pipes to be welded. The two pipe clamping components are connected by an angle adjustment component, which can adjust the relative angle and relative distance between the two pipe clamping components to adapt to welding pipes of different shapes. Each pipe clamping component includes a U-shaped plate, and a V-shaped fixing clamp is provided at the bottom of the inner wall of the U-shaped plate. The V-shaped concave surface adapts to the outer wall of the pipe to enhance clamping stability. A threaded clamping rod is threadedly connected to the top of the U-shaped plate, and the clamping force can be controlled by rotation adjustment. A U-shaped connecting block is rotatably connected to the bottom end of the threaded clamping rod. Both ends of the U-shaped connecting block are connected to a V-shaped movable clamp, which cooperates with the V-shaped fixed clamp to form a bidirectional clamping effect to prevent the pipe from sliding.

[0008] The angle adjustment component includes a first strip plate, the right end of which is rotatably connected to a U-shaped rotating plate via a threaded post. The threaded post serves as a rotating shaft, and the right end of the first strip plate is located between the front and rear sides of the inner wall of the U-shaped rotating plate. The front end of the threaded post is provided with a polygonal positioning block, and the rear end of the threaded post is threadedly connected to an internal thread pressure block.

[0009] The right side of the U-shaped rotating plate is provided with a second strip plate, and a U-shaped seat is sleeved on the outer side of the second strip plate. The U-shaped seat adjusts the distance between the two tube clamping parts by slidingly engaging with the second strip plate. A clamping bolt is threaded on the rear side of the U-shaped seat, and the clamping bolt is used to lock the relative position of the U-shaped seat and the second strip plate.

[0010] Preferably, the V-shaped movable clamp is located directly above the V-shaped fixed clamp, and both the V-shaped movable clamp and the V-shaped fixed clamp have rubber pads on their concave surfaces to increase friction and protect the pipe surface.

[0011] Preferably, the top of the U-shaped connecting block is provided with a positioning rod, the top end of which penetrates through the top of the inner wall of the U-shaped plate to the outside. The positioning rod restricts the rotational freedom of the U-shaped connecting block to ensure vertical downward pressure.

[0012] Preferably, the first strip plate is bolted to the rear side of the U-shaped plate of the left tube clamping member, and the U-shaped seat is bolted to the rear side of the U-shaped plate of the right tube clamping member.

[0013] Preferably, the first strip plate has a circular hole on its front side and near its right end for the threaded post to pass through, and the U-shaped rotating plate has a mounting hole on its side and near its left end for the threaded post to pass through.

[0014] Preferably, the front side of the U-shaped rotating plate is provided with a polygonal positioning frame, and the polygonal positioning block is located inside the polygonal positioning frame. The angular structure prevents the threaded column from rotating, which is conducive to the internal thread pressure block locking the threaded column and fixing the relative position of the first strip plate and the U-shaped rotating plate.

[0015] Preferably, the front side of the internal threaded pressure block abuts against the rear side of the U-shaped rotating plate, and the outer wall of the internal threaded pressure block is provided with multiple operating rods for easy manual rotation operation.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. The bevel alignment guide structure for welding the header of the once-through boiler, through the combination design of the tube clamping parts and the angle adjustment parts, can adjust the distance and angle between the two tube clamping parts, which can adapt to headers of different specifications, solve the problem of poor versatility of traditional equipment, and significantly improve the welding application range.

[0018] 2. The bevel alignment guide structure of the header welding of this once-through boiler utilizes the bidirectional clamping effect of the V-shaped fixed clamp and the V-shaped movable clamp, combined with the anti-slip protection function of the rubber pad, to ensure stable pipe clamping without damaging the surface, effectively preventing the pipe body from sliding or shifting during the welding process.

[0019] 3. The bevel alignment guide structure of the header welding of the once-through boiler adopts a sliding U-shaped seat that cooperates with the second strip plate, as well as a quick-locking design for the clamping bolts, which facilitates flexible adjustment of the spacing between the two sets of tube clamping parts. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the overall usage structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the tube clamping component structure in this utility model;

[0023] Figure 4 This is a schematic diagram of the angle adjustment component in this utility model;

[0024] Figure 5 This is a partial assembly structure diagram of the angle adjustment component in this utility model;

[0025] In the diagram: 100, pipe clamping component; 110, U-shaped plate; 120, V-shaped fixing clamping plate; 130, threaded clamping rod; 140, U-shaped connecting block; 150, V-shaped movable clamping plate; 160, rubber pad; 170, positioning rod; 200, angle adjusting component; 210, first strip plate; 211, round hole; 220, U-shaped rotating plate; 221, mounting hole; 222, polygonal positioning frame; 230, second strip plate; 240, U-shaped seat; 250, clamping bolt; 260, threaded post; 261, polygonal positioning block; 270, internal threaded pressure block; 271, operating rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Please see Figures 1-5 This utility model provides a technical solution:

[0029] The bevel alignment guide structure for welding headers of a once-through boiler includes two pipe clamping parts 100 for clamping the header pipes to be welded. The two pipe clamping parts 100 are connected by an angle adjusting part 200, which can adjust the relative angle and relative distance between the two pipe clamping parts 100 to adapt to welding pipes of different shapes. The pipe clamping part 100 includes a U-shaped plate 110. The bottom of the inner wall of the U-shaped plate 110 is provided with a V-shaped fixed clamping plate 120. The V-shaped concave surface adapts to the outer wall of the pipe to enhance clamping stability. The top of the U-shaped plate 110 is threadedly connected to a threaded clamping rod 130. The clamping force can be controlled by rotation adjustment. The bottom end of the threaded clamping rod 130 is rotatably connected to a U-shaped connecting block 140. Both ends of the U-shaped connecting block 140 are connected to a V-shaped movable clamping plate 150, which cooperates with the V-shaped fixed clamping plate 120 to form a bidirectional clamping effect to prevent the pipe from sliding.

[0030] The angle adjustment component 200 includes a first strip plate 210. The right end of the first strip plate 210 is rotatably connected to a U-shaped rotating plate 220 via a threaded post 260. The threaded post 260 serves as a rotation axis. The right end of the first strip plate 210 is located between the front and rear sides of the inner wall of the U-shaped rotating plate 220. A polygonal positioning block 261 is provided at the front end of the threaded post 260, and an internal thread pressure block 270 is threadedly connected to the rear end of the threaded post 260.

[0031] A second strip plate 230 is provided on the right side of the U-shaped rotating plate 220. A U-shaped seat 240 is sleeved on the outer side of the second strip plate 230. The U-shaped seat 240 adjusts the distance between the two tube clamping parts 100 by slidingly engaging with the second strip plate 230. A clamping bolt 250 is threaded on the rear side of the U-shaped seat 240. The clamping bolt 250 is used to lock the relative position of the U-shaped seat 240 and the second strip plate 230.

[0032] In this embodiment, the V-shaped movable clamp 150 is located directly above the V-shaped fixed clamp 120. Both the V-shaped movable clamp 150 and the V-shaped fixed clamp 120 have rubber pads 160 on their concave surfaces to increase friction and protect the pipe surface.

[0033] Specifically, the top of the U-shaped connecting block 140 is provided with a positioning rod 170. The top of the positioning rod 170 penetrates through the top of the inner wall of the U-shaped plate 110 to the outside. The positioning rod 170 restricts the rotational freedom of the U-shaped connecting block 140 to ensure vertical downward pressure.

[0034] Furthermore, the first strip plate 210 is bolted to the rear side of the U-shaped plate 110 of the left tube clamp 100, and the U-shaped seat 240 is bolted to the rear side of the U-shaped plate 110 of the right tube clamp 100.

[0035] Furthermore, a circular hole 211 for the threaded post 260 to pass through is provided on the front side and near the right end of the first strip plate 210, and a mounting hole 221 for the threaded post 260 to pass through is provided on the side and near the left end of the U-shaped rotating plate 220.

[0036] Furthermore, a polygonal positioning frame 222 is provided on the front side of the U-shaped rotating plate 220, and a polygonal positioning block 261 is located inside the polygonal positioning frame 222. The angular structure prevents the threaded column 260 from rotating, which is conducive to the internal thread pressure block 270 locking the threaded column 260 and fixing the relative position of the first strip plate 210 and the U-shaped rotating plate 220.

[0037] Furthermore, the front side of the internal threaded pressure block 270 abuts against the rear side of the U-shaped rotating plate 220, and the outer wall of the internal threaded pressure block 270 is provided with multiple operating rods 271 for easy manual rotation operation.

[0038] In this embodiment, the bevel alignment guide structure for welding the header of the once-through boiler is used by installing two pipe clamping parts 100 on the pipe to be welded and the header pipe respectively. By rotating the threaded clamping rod 130 of the pipe clamping part 100, the U-shaped connecting block 140 is driven to move, which drives the V-shaped movable clamping plate 150 and the V-shaped fixed clamping plate 120 to clamp the pipe. Then, the relative angle and spacing of the two pipe clamping parts 100 are adjusted by the angle adjusting part 200. The internal threaded pressure block 270 is loosened, so that the first strip plate 210 and the U-shaped rotating plate 220 rotate around the threaded column 260. At the same time, the second strip plate 230 is slid to adjust the spacing. When the angle and spacing are adjusted, the bevels of the two pipes are aligned. At this time, the internal threaded pressure block 270 is tightened to fix the angle, and then the clamping bolt 250 is tightened to lock the relative position, ensuring that the bevel alignment accuracy is stable during the welding process.

[0039] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A bevel alignment guide structure for welding headers of a once-through boiler, comprising two pipe clamping components (100), characterized in that: Two tube clamping components (100) are connected by an angle adjusting component (200). Each tube clamping component (100) includes a U-shaped plate (110). The bottom of the inner wall of the U-shaped plate (110) is provided with a V-shaped fixing clamp (120). A threaded clamping rod (130) is threadedly connected to the top of the U-shaped plate (110). A U-shaped connecting block (140) is rotatably connected to the bottom end of the threaded clamping rod (130). Both ends of the U-shaped connecting block (140) are connected to a V-shaped movable clamp (150). The angle adjusting component (200) includes a first... A strip plate (210) is provided. The right end of the first strip plate (210) is rotatably connected to a U-shaped rotating plate (220) via a threaded post (260). The front end of the threaded post (260) is provided with a polygonal positioning block (261). The rear end of the threaded post (260) is threadedly connected to an internal thread pressure block (270). The right side of the U-shaped rotating plate (220) is provided with a second strip plate (230). The outer side of the second strip plate (230) is sleeved with a U-shaped seat (240). The rear side of the U-shaped seat (240) is threadedly connected to a clamping bolt (250).

2. The bevel alignment guide structure for welding the header of a once-through boiler according to claim 1, characterized in that: The V-shaped movable clamp (150) is located directly above the V-shaped fixed clamp (120), and the concave surfaces of both the V-shaped movable clamp (150) and the V-shaped fixed clamp (120) are provided with rubber pads (160).

3. The bevel alignment guide structure for welding the header of a once-through boiler according to claim 1, characterized in that: The top of the U-shaped connecting block (140) is provided with a positioning rod (170), and the top end of the positioning rod (170) penetrates through the top of the inner wall of the U-shaped plate (110) to the outside.

4. The bevel alignment guide structure for welding the header of a once-through boiler according to claim 1, characterized in that: The first strip plate (210) is bolted to the rear side of the U-shaped plate (110) of the left tube clamp (100), and the U-shaped seat (240) is bolted to the rear side of the U-shaped plate (110) of the right tube clamp (100).

5. The bevel alignment guide structure for welding the header of a once-through boiler according to claim 1, characterized in that: The first strip plate (210) has a circular hole (211) on its front side and near the right end for the threaded post (260) to pass through, and the U-shaped rotating plate (220) has a mounting hole (221) on its side and near the left end for the threaded post (260) to pass through.

6. The bevel alignment guide structure for welding the header of a once-through boiler according to claim 1, characterized in that: The front side of the U-shaped rotating plate (220) is provided with a polygonal positioning frame (222), and the polygonal positioning block (261) is located inside the polygonal positioning frame (222).

7. The bevel alignment guide structure for welding the header of a once-through boiler according to claim 1, characterized in that: The front side of the internal threaded pressure block (270) abuts against the rear side of the U-shaped rotating plate (220), and the outer wall of the internal threaded pressure block (270) is provided with a plurality of operating rods (271).

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