Tool for changing welding position of cylinder body and flange

Abstract

The utility model relates to a tool for changing the welding position of a cylinder body and a flange, which comprises a supporting part and a welding support, the supporting part comprises a cylinder and supports, the cylinder is located in the center of the cylinder body to be welded, the supports are radially arranged on the wall of the cylinder outwards and are connected to the inner wall of the cylinder body to be welded, and two ends of the cylinder exceed the end face of the cylinder body. Welding brackets are arranged at two ends of the cylinder; the welding support comprises a rotating shaft, a supporting frame and a stand column, the rotating shaft is supported on the supporting frame through supporting plates at the two ends of the rotating shaft, and the supporting frame is erected on a foundation through the stand column. The barrel can rotate under the cooperation of the supporting barrel and the welding support, welding is assisted, the welding progress is accelerated, the welding quality is improved, the supporting frame supports the barrel, the barrel is prevented from deforming in the welding process, and the service life of the reactor barrel is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of reactor cylinder welding, in particular to a tool for changing the welding position of a cylinder body and a flange. Background Art

[0002] The working temperature inside the cylinder of the distillation reactor is 20-1300℃, and the working temperature outside the cylinder is 950℃. The reactor is cooled with water immediately after operation. In this extremely cold and hot working environment, the welds on the reactor are required to be extremely strict. If cracks or breaks occur in the welds during the production process, the substances in the entire reactor will leak.

[0003] At present, the welding speed and welding quality of the reactor are the most important in the production of the entire reactor. After the lower cylinder of the reactor and the skirt flange are assembled, the horizontal welding position (such as Figure 7 ), the horizontal welding speed is slow and the welding difficulty is greater, and it is easy to have many welding defects such as porosity, slag inclusion, incomplete penetration, incomplete fusion, cracks, pits, undercuts, weld nodules, etc. Secondary welding repair will affect the toughness of the weld and weaken the weld strength, thereby affecting the normal use of the reactor. Summary of the Invention

[0004] In order to solve the technical problem of difficulty in welding the cylinder body and the skirt flange group, the utility model provides a tool for changing the welding position of the cylinder body and the flange, and adopts a support and a cylinder to be arranged in the cylinder body, and cooperates with the welding brackets arranged on both sides to change the original horizontal welding position between the cylinder body and the skirt flange into a flat welding position. The cylinder body can be rotated with the cooperation of the cylinder and the welding bracket to assist welding, speed up welding progress, reduce welding time, reduce welding defects, improve welding quality, ensure that the reactor cylinder body is not affected by welding, and increase the service life of the reactor cylinder body.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A tool for changing the welding position of a cylinder body and a flange, comprising a support part and a welding bracket, wherein the support part comprises a cylinder and a support, the cylinder is located at the center of the cylinder to be welded, a plurality of supports are radially arranged outward from the cylinder wall, the supports are connected to the inner wall of the cylinder to be welded, the two ends of the cylinder extend beyond the end face of the cylinder, and welding brackets are arranged at both ends of the cylinder; the welding bracket comprises a rotating shaft, a support frame and a column, the rotating shaft is supported on the support frame by support plates at both ends; the support frame is erected on a foundation through the columns, an oblique support is arranged between the columns and the support frame, and transverse ribs are arranged between the columns.

[0007] Furthermore, the cylindrical surface of the cylinder is tangentially connected to the axial surface of the rotating shaft.

[0008] Furthermore, a semi-circular baffle is provided at the end of the rotating shaft.

[0009] Furthermore, the support frame is a rectangular frame composed of brackets and intermediate supports.

[0010] Furthermore, a baffle is provided at the bottom of the column.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0012] 1. The horizontal welding position between the original cylinder body and the skirt flange is changed to a flat welding position. The cylinder body can rotate under the cooperation of the cylinder and the welding bracket to assist welding, accelerate the welding progress, reduce the welding time, reduce welding defects, improve the welding quality, ensure that the reactor cylinder body is not affected by welding, and improve the service life of the reactor cylinder body.

[0013] 2. Support the cylindrical body during the welding process to ensure the cylindricity of the cylinder body during welding, prevent the cylinder body from deforming during welding, and not affect the subsequent use of the cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of a tooling for changing the welding position between the cylinder body and the flange according to the present utility model.

[0015] Figure 2 is a schematic view of the cylinder and the support structure according to the present utility model.

[0016] Figure 3 is a side view of the cylinder and the support shaft according to the present utility model.

[0017] Figure 4 is a schematic structural view of the welding bracket according to the present utility model.

[0018] Figure 5 is a left view of the welding bracket according to the present utility model.

[0019] Figure 6 is a top view of the welding bracket according to the present utility model.

[0020] Figure 7 is a schematic view of the cylinder body and the skirt flange structure according to the present utility model.

[0021] In the figure: 1. Cylinder; 2. Support; 3. Rotating shaft; 4. Support plate; 5. Support frame; 51. Bracket; 52. Intermediate support; 6. Column; 7. Inclined support; 8. Horizontal rib; 9. Baffle; 10. Semi-circular baffle; 11. Cylinder body to be welded; 12. Skirt flange; 13. Foundation. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] The following further describes the specific embodiments of the present utility model with reference to the accompanying drawings:

[0023] As Figures 1 - 7 shown, the working principle of a tooling for changing the welding position between the barrel body and the flange is as follows: The support 2 and the cylinder 1 hold the barrel body 11 to be welded of the reactor. The barrel body 11 to be welded is flipped to place the cylinder 1 on the welding brackets on both sides. At this time, the barrel body 11 to be welded and the skirt flange 12 are changed from the original horizontal placement to vertical suspension placement. The horizontal welding between the barrel body 11 to be welded and the skirt flange 12 is changed to flat welding, making the welding easier, reducing the welding time, reducing the welding difficulty, reducing welding defects, improving the welding quality, and the cylindrical surface of the cylinder 1 is in tangential contact with the two rotation axes 3 of the welding brackets. The cylinder 1 can roll on the rotation axis 3 surface. The welder does not need to move the welding position. Just by rotating the barrel body 11 to be welded, the barrel body 11 to be welded can be rotated around the axis of the cylinder 1, and other positions of the barrel body 11 to be welded that need to be welded can be turned to the welder's welding position.

[0024] As Figures 1 - 7As shown in the figure, a tooling for changing the welding position between the cylinder body and the flange includes a support part and a welding bracket. The support part includes a cylinder 1 and supports 2. The cylinder 1 is located at the center of the cylinder to be welded 11. A number of supports 2 are radially arranged outward on the cylinder wall of the cylinder 1, and the supports 2 are connected to the inner wall of the cylinder to be welded 11. One end of the support 2 that supports on the inner wall of the cylinder to be welded 11 is not welded to the inner wall of the cylinder to be welded 11, but only supports on the inner wall of the cylinder to be welded 11, without affecting the roughness of the inner wall of the cylinder to be welded 11. When welding the cylinder to be welded 11 and the skirt flange 12, the support 2 supports on the inner wall of the cylinder to be welded 11, which can prevent the cylinder to be welded 11 from deforming during welding and ensure the coaxiality of the cylinder to be welded 11. Both ends of the cylinder 1 extend beyond the end face of the cylinder to be welded 11. Welding brackets are provided at both ends of the cylinder 1. There are 2 pairs of welding brackets, and there is a certain distance between the two welding brackets. The parts of the cylinder 1 that extend beyond the cylinder to be welded 11 at both ends are placed on the rotating shafts 3 on both sides of the welding brackets, and the cylinder to be welded 11 stands between the welding brackets. The welding bracket includes a rotating shaft 3, a support frame 5 and a column 6. The rotating shaft 3 is supported on the support frame 5 through the support plates 4 at both ends. There are 2 rotating shafts 3 at the top of the welding bracket, and the two rotating shafts 3 are arranged in parallel on the upper surface of the support frame 5. The cylinder 1 is placed between the two rotating shafts 3, and the cylindrical surface of the cylinder 1 is in tangential contact with the axial surface of the rotating shaft 3. The rotating shaft 3 can rotate, and the cylinder 1 rolls on the rotating shaft 3. When welding the skirt flange 12 and the cylinder to be welded 11, the welder stands on one side of the cylinder to be welded 11. After welding to the limit position that can be welded by himself, there is no need to walk to the next welding location. As long as the cylinder to be welded 11 is pushed to rotate, the cylinder 1 inside the cylinder to be welded 11 will roll on the rotating shaft 3. The rolling friction resistance is small, and it is easy to turn the cylinder to be welded 11 to the next position that needs to be welded. By analogy, the welder can easily weld the entire cylinder to be welded 11 without walking back and forth. The support frame 5 stands on the foundation 13 through the column 6. An inclined support 7 is provided between the column 6 and the support frame 5, and a horizontal bar 8 is provided between the columns 6. The inclined support 7 and the horizontal bar 8 improve the structural strength of the welding bracket.

[0025] Further, the cylindrical surface of the cylinder 1 is in tangential contact with the axial surface of the rotating shaft 3, and the cylindrical surface of the cylinder 1 rolls on the axial surface of the rotating shaft 3, which can reduce the friction force.

[0026] Further, a semi-circular baffle 10 is provided outside the position of the rotating shaft 3 on the support plate 4, and the semi-circular baffle limits the position to prevent the rotating shaft 3 from moving back and forth.

[0027] Further, the support frame 5 is a rectangular frame composed of a bracket 51 and an intermediate support 52.

[0028] Further, a baffle 9 is provided at the bottom of the column 6 to prevent the cylinder to be welded 11 from being overstressed and prevent the welding bracket from toppling.

[0029] The above are only the preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its concept of the present utility model, makes equivalent substitutions or changes, and should be covered within the protection scope of the present utility model.

Claims

1. A tooling for changing the welding position between the cylinder body and the flange, comprising a support part and a welding bracket, characterized in that, The supporting part includes a cylinder and supports. The cylinder is located at the center of the cylinder to be welded. A number of supports are arranged radially outward on the cylinder wall of the cylinder and are connected to the inner wall of the cylinder to be welded. Both ends of the cylinder extend beyond the end faces of the cylinder, and welding brackets are arranged at both ends of the cylinder. The welding bracket includes a rotating shaft, a support frame and columns. The rotating shaft is supported on the support frame through the support plates at both ends. The support frame stands on the foundation through the columns, diagonal braces are arranged between the columns and the support frame, and horizontal ribs are arranged between the columns.

2. The tooling for changing the welding position between the cylinder body and the flange according to claim 1, characterized in that, The cylinder surface of the cylinder is in tangential contact connection with the axial surface of the rotating shaft.

3. A tool for changing the welding position between the cylinder body and the flange according to claim 1, characterized in that, A semi-circular baffle is arranged at the end of the rotating shaft.

4. A tool for changing the welding position between the cylinder body and the flange according to claim 1, characterized in that, The support frame is a rectangular frame composed of brackets and intermediate supports.

5. A tool for changing the welding position between the cylinder body and the flange according to claim 1, characterized in that A baffle is arranged at the bottom of the column.

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