An integrated tube bundle welding protection and auxiliary device and its production process

Abstract

The present invention discloses an integrated tube bundle welding protection and auxiliary device and its production process. The device comprises a welding protection device with a through-hole extending vertically therethrough. A water circulation pipeline, a fixed pipeline, and a channel to be inserted are symmetrically arranged within the welding protection device on either side of the through-hole, extending transversely therethrough. The water circulation pipeline, the fixed pipeline, and the channel to be inserted are sequentially arranged from top to bottom within one side of the welding protection device. The present invention achieves welding protection through water cooling, continuously changing positions, and the inherent heat resistance of the material.

Description

Technical Field

[0001] The present invention relates to the technical field of integrated tube bundle welding, in particular to an integrated tube bundle welding protection and auxiliary device and a production process thereof. Background Art

[0002] The existing integrated tube bundle welding method cannot enter the outer tube horizontally during welding due to the huge rigidity of the pipeline itself. Forcing the outer tube into the outer tube will cause the pipeline to expand the welding position of the outer tube due to its own arc shape, or the outer tube and the inner tube will be welded together during welding. Therefore, it is impossible to weld other devices such as pipes or cables into another tube. Summary of the Invention

[0003] The purpose of the present invention is to provide an integrated tube bundle welding protection and auxiliary device and a production process thereof to solve the above-mentioned problems existing in the prior art.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] An integrated tube bundle welding protection and auxiliary device of the present invention includes a welding protection device, wherein the welding protection device is vertically penetrated by a through hole, and water circulation pipelines, fixed pipelines and channels to be inserted that transversely penetrate the welding protection device are symmetrically arranged in the welding protection device on both sides of the through hole. The water circulation pipeline, the fixed pipeline and the channel to be inserted are sequentially arranged inside one side of the welding protection device from top to bottom.

[0006] Furthermore, the welding protection device is made of graphite material.

[0007] Furthermore, it also includes a front and rear drive device, which includes a drive motor, a screw, a fixed slide and a connecting rod. The drive motor is connected to the screw, and the fixed slide is installed on the screw. One end of the connecting rod is connected to the fixed slide, and the other end is connected to the fixed pipeline of the welding protection device.

[0008] Furthermore, the fixed pipeline is a threaded hole, the other end of the connecting rod is connected to a U-shaped connector, and the two ends of the U-shaped connector are respectively threadedly connected and fixed to the fixed pipeline.

[0009] Furthermore, a pipeline is provided in the channel to be inserted, and the pipeline enters the channel to be inserted after the tube body is straightened by the extrusion of a roller.

[0010] An integrated tube bundle welding production process comprises the following steps:

[0011] Step 1: straighten the pipeline by squeezing the rollers, and make the pipeline enter the outer tube in a straight line and horizontally by reversing the curvature;

[0012] Step 2: Enter the outer tube and weld the inside through the welding device;

[0013] Step 3: Cooling is performed by adding a water circulation pipeline inside the welding protection device;

[0014] Step 4: The front and rear driving devices provided outside the welding protection device can drive the welding device to perform welding at different positions.

[0015] Furthermore, the welding protection device is vertically penetrated by a through hole, and water circulation pipelines, fixed pipelines and channels to be inserted that pass through the welding protection device horizontally are symmetrically arranged in the welding protection device on both sides of the through hole. The water circulation pipelines, the fixed pipelines and the channels to be inserted are arranged in sequence from top to bottom inside one side of the welding protection device.

[0016] Furthermore, the welding protection device is made of graphite material.

[0017] Furthermore, the front and rear drive device includes a drive motor, a screw, a fixed slide and a connecting rod. The drive motor is connected to the screw, and the fixed slide is installed on the screw. One end of the connecting rod is connected to the fixed slide, and the other end is connected to the fixed pipeline of the welding protection device.

[0018] Furthermore, the fixed pipeline is a threaded hole, the other end of the connecting rod is connected to a U-shaped connector, and the two ends of the U-shaped connector are respectively threadedly connected and fixed to the fixed pipeline.

[0019] Compared with the prior art, the present invention has the following beneficial technical effects:

[0020] The integrated tube bundle welding protection and auxiliary device and its production process straighten the tubes through roller extrusion. Reverse extrusion of the curvature allows the inner tube to enter the outer tube in a straight and horizontal direction, reducing the risk of pinching. A welding device then enters the outer tube for welding. A hole is opened below the laser molten pool to allow weld spatter to enter the tube, effectively preventing adhesion. The welding protection device utilizes high-strength, heat-resistant graphite materials and incorporates internal piping for cooling. Furthermore, a front and rear drive mechanism is added to the device to prevent welding in a single position. The present invention achieves welding protection through water cooling, continuously changing positions, and the inherent heat resistance of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 A schematic diagram of the three-dimensional structure of the welding protection device of the integrated tube bundle welding protection and auxiliary device of the present invention;

[0023] Figure 2 This is a schematic diagram of the main structure of the welding protection device of the integrated tube bundle welding protection and auxiliary device of the present invention;

[0024] Figure 3 A schematic top view of the structure of the welding protection device of the integrated tube bundle welding protection and auxiliary device of the present invention;

[0025] Figure 4 It is a left side structural schematic diagram of the welding protection device of the integrated tube bundle welding protection and auxiliary device of the present invention;

[0026] Figure 5 This is a schematic structural diagram of the front and rear drive devices of the integrated tube bundle welding protection and auxiliary device of the present invention.

[0027] Explanation of the accompanying symbols: 1. Welding protection device; 2. Water circulation pipeline; 3. Fixed pipeline; 4. Channel to be inserted; 5. Driving motor; 6. Screw; 7. Fixed slide; 8. Connecting rod. DETAILED DESCRIPTION

[0028] Example 1

[0029] like Figures 1 to 4 As shown, an integrated tube bundle welding protection and auxiliary device includes a welding protection device 1, which is vertically penetrated by a through hole. A water circulation pipeline 2, a fixed pipeline 3 and a channel to be inserted 4 that transversely penetrate the welding protection device 1 are symmetrically arranged in the welding protection device 1 on both sides of the through hole. The water circulation pipeline 2, the fixed pipeline 3 and the channel to be inserted 4 are sequentially arranged inside one side of the welding protection device 1 from top to bottom.

[0030] Specifically, the welding protection device 1 is made of graphite material.

[0031] In this embodiment 1, the welding protection device 1 is made of graphite material. Due to the different materials, the splashing molten steel generated during laser welding will directly fall off and fall into the tube when it drips onto the graphite, thereby preventing the welding protection device 1 from being deformed due to adhesion and splashing. At the same time, a through hole is provided at the welding position, so that the welding molten pool will not adhere to the welding protection device 1.

[0032] The welding protection device 1 is made of a high-strength and temperature-resistant graphite material.

[0033] Specifically, it also includes a front and rear drive device, which includes a drive motor 5, a screw 6, a fixed slide 7 and a connecting rod 8. The drive motor 5 is connected to the screw 6, and the fixed slide 7 is installed on the screw 6. One end of the connecting rod 8 is connected to the fixed slide 7, and the other end is connected to the fixed pipeline 3 of the welding protection device 1.

[0034] In this embodiment 1, when in use, the front and rear drive devices move forward and backward, and the welding protector 1 also moves with it. The pipeline inside the welding protector 1 is fixed at the beginning of welding and passes through the welding protector 1. The movement of the welding protector 1 does not affect the advancement of the pipeline. The pipeline advances normally, and the welding protector 1 slides relative to the welding position, preventing damage to the welding protector 1. At the same time, damage to the welding protector 1 is avoided and the pipeline is protected. In this case, the provision of the front and rear drive devices can prevent welding in only one position during welding.

[0035] Specifically, the fixed pipeline 3 is a threaded hole, the other end of the connecting rod 8 is connected to a U-shaped connector, and the two ends of the U-shaped connector are respectively threadedly connected and fixed to the fixed pipeline 3.

[0036] Specifically, a pipeline is provided in the passage 4 to be inserted, and the pipeline enters the passage 4 to be inserted after the pipe body is straightened by the extrusion of a roller.

[0037] In this embodiment 1, due to the great rigidity of the pipeline itself, it cannot enter the outer tube horizontally during welding. Forcing the pipeline into the outer tube will cause the outer tube welding position to be stretched due to the pipeline's own arc shape, or the outer tube and the inner tube to be welded together during welding. Therefore, the tube is first straightened by extrusion with a roller, and the inner tube is made to enter the outer tube in a straight line and horizontally by reverse extrusion of the arc.

[0038] The integrated tube bundle welding protection and auxiliary device of Example 1 straightens the tubes through roller extrusion. Reverse extrusion of the curvature allows the inner tube to enter the outer tube in a straight and horizontal direction. The straightened tube is less likely to cause problems such as pinching. A welding device then enters the outer tube's weld interior, creating a hole at the most intense welding location to allow weld spatter to enter the tube body, effectively preventing adhesion. The welding protection device 1 is constructed of high-strength, heat-resistant graphite-based materials. Internal piping is added for cooling to prevent burns. Furthermore, front and rear drive devices are added to the device to prevent welding in a single location. The present invention achieves welding protection through water cooling, constantly changing positions, and the inherent heat resistance of the material.

[0039] Example 2

[0040] An integrated tube bundle welding production process comprises the following steps:

[0041] Step 1: straighten the pipeline by squeezing the rollers, and make the pipeline enter the outer tube in a straight line and horizontally by reversing the curvature;

[0042] Step 2: Enter the outer tube and weld the inside through the welding device;

[0043] Step 3: Cooling is performed by adding a water circulation pipeline 2 inside the welding protection device 1;

[0044] Step 4: The front and rear driving devices provided outside the welding protection device 1 can drive the welding device to perform welding at different positions.

[0045] Specifically, the welding protection device 1 is vertically penetrated by a through hole, and a water circulation pipeline 2, a fixed pipeline 3 and a channel to be inserted 4 are symmetrically arranged in the welding protection device 1 on both sides of the through hole, which pass through the welding protection device 1 horizontally. The water circulation pipeline 2, the fixed pipeline 3 and the channel to be inserted 4 are arranged in sequence from top to bottom inside one side of the welding protection device 1.

[0046] Specifically, the welding protection device 1 is made of graphite material.

[0047] Specifically, the front and rear drive device includes a drive motor 5, a screw 6, a fixed slide 7 and a connecting rod 8. The drive motor 5 is connected to the screw 6, and the fixed slide 7 is installed on the screw 6. One end of the connecting rod 8 is connected to the fixed slide 7, and the other end is connected to the fixed pipeline 3 of the welding protection device 1.

[0048] Specifically, the fixed pipeline 3 is a threaded hole, the other end of the connecting rod 8 is connected to a U-shaped connector, and the two ends of the U-shaped connector are respectively threadedly connected and fixed to the fixed pipeline 3.

[0049] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. An integrated tube bundle welding protection and auxiliary device, characterized in that: The welding protection device comprises a through hole vertically extending through the welding protection device, and a water circulation pipeline, a fixed pipeline, and a channel to be inserted that are symmetrically arranged in the welding protection device on both sides of the through hole and horizontally extending through the welding protection device. The water circulation pipeline, the fixed pipeline, and the channel to be inserted are sequentially arranged inside one side of the welding protection device from top to bottom; the welding protection device is made of graphite material; It also includes a front and rear drive device, which includes a drive motor, a screw, a fixed slide and a connecting rod. The drive motor is connected to the screw, and the fixed slide is installed on the screw. The connecting rod is L-shaped, one end of the connecting rod is connected to the fixed slide, and the other end is connected to the fixed pipeline of the welding protection device; the fixed pipeline is a threaded hole, and the other end of the connecting rod is connected to a U-shaped connector, and the two ends of the U-shaped connector are respectively threaded and fixed to the fixed pipeline.

2. The integrated tube bundle welding protection and auxiliary device according to claim 1, characterized in that: A pipeline is provided in the passage to be placed, and the pipeline enters the passage to be placed after the tube body is straightened by the extrusion of a roller.

3. An integrated tube bundle welding production process, characterized in that: The following steps are involved: Step 1: straighten the pipeline by squeezing the rollers, and make the pipeline enter the outer tube in a straight line and horizontally by reversing the curvature; Step 2: Enter the outer tube and weld the inside through the welding device; Step 3: Cooling the welding protection device by adding a water circulation pipeline inside the device; Step 4: The front and rear drive devices provided outside the welding protection device can drive the welding device to weld at different positions; The welding protection device is vertically penetrated by a through hole, and a water circulation pipeline, a fixed pipeline, and a channel to be inserted are symmetrically arranged in the welding protection device on both sides of the through hole and horizontally penetrate the welding protection device. The water circulation pipeline, the fixed pipeline, and the channel to be inserted are sequentially arranged inside one side of the welding protection device from top to bottom; The front and rear drive device includes a drive motor, a lead screw, a fixed slide and a connecting rod. The drive motor is connected to the lead screw, and the fixed slide is installed on the lead screw. The connecting rod is L-shaped, one end of the connecting rod is connected to the fixed slide, and the other end is connected to the fixed pipeline of the welding protection device; the fixed pipeline is a threaded hole, and the other end of the connecting rod is connected to a U-shaped connector, and the two ends of the U-shaped connector are respectively threaded and fixed to the fixed pipeline.

4. The integrated tube bundle welding production process according to claim 3, characterized in that: The welding protection device is made of graphite material.

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