Pressure vessel welding device

Abstract

The utility model discloses a pressure vessel welding device which comprises a pressure vessel welding inner supporting mechanism, the pressure vessel welding inner supporting mechanism comprises a long beam rod, and a plurality of pressure vessel inner supporting assemblies are assembled and connected to the long beam rod; the pressure vessel inner supporting assembly comprises an annular base installed on the long beam rod in a sliding mode, a plurality of inner supporting wheel assemblies are fixedly connected to the outer side wall of the annular base, each inner supporting wheel assembly comprises a long adjusting pipe fixedly connected to the annular base, and long adjusting rods with the adjustable intervals are connected to the long adjusting pipes in a threaded mode. A supporting wheel is mounted at the outer end part of the adjusting long rod; the inner supporting wheel assembly further comprises a plurality of side supporting wheels fixedly connected to the adjusting long rod, the side supporting wheels are obliquely arranged, and the distance between the side supporting wheels can be adjusted. According to the device structure, the interior of the pressure container is fully supported in the pressure container welding process, and the technical problem of deformation of the pressure container is effectively solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure vessel welding, and particularly relates to a pressure vessel welding device. Background Art

[0002] A pressure vessel is a container with high pressure resistance, which is widely used in the chemical industry, such as a pressure kettle for chemical reactions. Specifically, in the process of chemical reactions, materials are added to the pressure vessel, and chemical reactions are carried out under a certain high-pressure environment.

[0003] In the production and processing of pressure vessels, the pressure vessel is welded by welding each component on the pressure vessel, such as pipes, vessel segments, etc., to the cylindrical container main body structure in a sealed welding manner.

[0004] Due to the large size and heavy weight of the pressure vessel, during the welding process, such as during sealed welding, the pressure vessel needs to be turned over to expose the welding position. The current relatively conventional turning method is: placing the pressure vessel on a supporting wheel structure, and using the friction force between the rotating supporting wheel and the container to turn the container.

[0005] However, due to the large size and large internal hollow structure of the pressure vessel, during the turning and welding process, due to the large internal cavity and no supporting structure, the pressure vessel is prone to deformation during the turning and welding process, and the deformation causes the welding position of the pressure vessel to be misaligned with the fittings, resulting in the inability to ensure the sealing and high-pressure resistance of the welding after welding.

[0006] Therefore, in the actual processing process, the operator prevents deformation by supporting a support rod inside the container. However, due to too few supporting points of the support rod, the supporting effect is not obvious, and the container is still prone to deformation during welding. Moreover, since the welding position is constantly changing during welding, the support position of the support rod needs to be continuously adjusted. However, when the support rod located in the internal cavity repeatedly adjusts the support position, the operation is too cumbersome, resulting in too low welding processing efficiency. Summary of the Utility Model

[0007] Based on the above background, the purpose of the utility model is to provide a pressure vessel welding device.

[0008] To achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A pressure vessel welding device includes a pressure vessel welding internal support mechanism, and the pressure vessel welding internal support mechanism includes a long beam rod, and a plurality of pressure vessel internal support components are assembled and connected on the long beam rod;

[0010] The internal support assembly of the pressure vessel includes an annular seat slidably mounted on a long beam rod. A plurality of internal support wheel assemblies are fixedly connected to the outer side wall of the annular seat. Each internal support wheel assembly includes an adjusting long tube fixedly connected to the annular seat. An adjusting long rod with an adjustable spacing is threadedly connected to the adjusting long tube. A supporting top wheel is installed at the outer end of the adjusting long rod.

[0011] Each internal support wheel assembly further includes a plurality of side supporting top wheels fixedly connected to the adjusting long rod. The side supporting top wheels are inclined, and the spacing between the side supporting top wheels can be adjusted.

[0012] Preferably, the supporting top wheel includes a wheel frame and a supporting wheel rotatably connected inside the wheel frame.

[0013] An adjusting screw rod is fixedly connected to the wheel frame, and the adjusting screw rod is threadedly connected to the adjusting long rod.

[0014] Preferably, the side supporting top wheel includes a side wheel frame, and an inner top wheel is rotatably connected inside the side wheel frame.

[0015] An inclined fixed screw tube is fixedly connected to the adjusting long rod, and a screw rod threadedly connected to the inclined fixed screw tube is fixedly connected to the side wheel frame.

[0016] Preferably, an internal thread structure is provided in the lumen of the adjusting long tube.

[0017] An outer thread structure adapted thereto is provided on the adjusting long rod, and a hexagonal body convex rib is integrally formed on the adjusting long rod.

[0018] Preferably, a plurality of end support assemblies are respectively fixedly connected to the two ends of the long beam rod.

[0019] The end support assemblies are fixedly connected to the long beam rod.

[0020] Preferably, each end support assembly includes a fixed connection tube fixedly connected to the long beam rod. A support rod is threadedly connected to the fixed connection tube, and a hexagonal body convex seat is integrally formed on the support rod.

[0021] Preferably, a plurality of support plate assemblies are respectively fixedly connected to the left and right side walls of the annular seat.

[0022] Preferably, each support plate assembly includes a fixed seat plate fixedly connected to the annular seat. An adjusting rod sleeve is fixedly connected to the fixed seat plate. An adjusting support rod is slidably connected to the adjusting rod sleeve, and a support top plate is fixedly connected to the adjusting support rod.

[0023] Preferably, the adjusting support rod and the adjusting rod sleeve are locked by a locking structure.

[0024] The locking structure includes a plurality of locking bolts threadedly connected to the adjusting rod sleeve, and the locking bolts are abutted and locked on the adjusting support rod.

[0025] The utility model has the following beneficial effects:

[0026] 1. A supporting top wheel is installed at the outer end of the adjusting long rod. The inner supporting wheel assembly further includes two side supporting top wheels fixedly connected to the adjusting long rod. The side supporting top wheel includes a side wheel frame, and an inner top wheel is rotatably connected inside the side wheel frame; an inclined fixed screw tube is fixedly connected to the adjusting long rod, and a screw rod threadedly connected to the inclined fixed screw tube is fixedly connected to the side wheel frame. The side wheel frame-inner top wheel structure is adjusted to abut and support against the inner side wall of the pressure vessel. By this method, during the welding and turning processes of the pressure vessel, the pressure vessel can be fully supported. Moreover, since the supporting top wheel and inner top wheel structures are used for support, it is convenient to push the inner supporting wheel assembly to adjust the supporting position after support. At the same time, this method adopts an annular supporting method and multi-segment and multi-point support. After support, there is no need to frequently adjust the supporting points, which greatly simplifies the supporting steps and improves the welding efficiency.

[0027] 2. The supporting plate assembly includes a fixed seat plate fixedly connected to the annular seat. An adjusting rod sleeve is fixedly connected to the fixed seat plate. An adjusting support rod is slidably connected to the adjusting rod sleeve, and a supporting top plate is fixedly connected to the adjusting support rod. The adjusting support rod and the adjusting rod sleeve are locked by a locking structure. During the working process, after loosening the locking bolt, the adjusting support rod is slid until the adjusting support rod-supporting top plate fully abuts against the inner side wall of the pressure vessel. By means of the supporting top plate, the supporting surface is increased and the supporting effect is improved, so as to further avoid the technical defect of container deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0029] Figure 1 It is a schematic diagram of the overall structure in the embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of the structure of the end support assembly in the embodiment of the present invention;

[0031] Figure 3 It is a schematic diagram of the structure of the supporting top wheel in the embodiment of the present invention;

[0032] Figure 4 For the embodiment of the present inventionFigure 1 The right view in

[0033] Figure 5 This is an embodiment of the present utility model Figure 1 The top view in

[0034] The realization of the object, functional features and advantages of the present utility model will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0036] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present utility model are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0037] In addition, in the present utility model, descriptions such as "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

[0038] Embodiment 1

[0039] As Figure 1-5 shown, a pressure vessel welding device includes a pressure vessel welding inner support mechanism. The pressure vessel welding inner support mechanism includes a long beam rod 1, and a plurality of pressure vessel inner support components are assembled and connected to the long beam rod 1.

[0040] The segmented support of the pressure vessel main body with a cylindrical structure is realized through the pressure vessel inner support components. The full support of the large-sized pressure vessel is realized through the segmented support method, so as to protect the pressure vessel and avoid flipping and deformation during the welding process.

[0041] Specifically, the inner support assembly of the pressure vessel includes an annular seat 3 slidably mounted on the long beam rod 1. Specifically, an inner beam rod is fixedly connected to the diameter part of the annular seat 3, and the long beam rod 1 is slidably connected to the inner beam rod.

[0042] A number of inner support wheel assemblies 4 are fixedly connected to the outer side wall of the annular seat 3. The inner support wheel assembly 4 includes an adjusting long tube 41 fixedly connected to the annular seat 3. An adjusting long rod 42 with adjustable spacing is threadedly connected to the adjusting long tube 41. Specifically, an internal thread structure is provided in the lumen of the adjusting long tube 41; an external thread structure adapted thereto is provided on the adjusting long rod 42, and a hexagonal body rib is integrally formed on the adjusting long rod 42. By this means, after the adjusting long rod 42 is screwed, the spacing of the adjusting long rod 42 extending out of the adjusting long tube 41 can be adjusted.

[0043] At the same time, a supporting wheel is installed at the outer end of the adjusting long rod 42. Specifically, the supporting wheel includes a wheel frame 431 and a supporting wheel 43 rotatably connected within the wheel frame 431.

[0044] During the working process, by adjusting the spacing of the adjusting long rod 42, the supporting wheel is supported against the inner side wall of the pressure vessel. At the same time, an adjusting screw rod is fixedly connected to the above-mentioned wheel frame 431, and the adjusting screw rod is threadedly connected to the adjusting long rod 42. By rotating the wheel frame 431, the structure of the wheel frame 431 - supporting wheel 43 can be further adjusted to ensure that the wheel frame 431 - supporting wheel 43 can fully abut against the inner side wall of the pressure vessel, achieving full abutment of the pressure vessel and avoiding deformation during the turning process.

[0045] To improve the supporting effect, the above-mentioned inner support wheel 43 assembly further includes two side supporting wheels fixedly connected to the adjusting long rod 42 (the supporting wheels are symmetrically distributed on both sides with the adjusting long rod 42 as the symmetry position). The side supporting wheels are inclined, and the spacing of the side supporting wheels can be adjusted. Similarly, the side supporting wheel includes a side wheel frame, and an inner top wheel 441 is rotatably connected within the side wheel frame; an inclined fixed screw tube 44 is fixedly connected to the adjusting long rod 42, and a screw rod threadedly connected to the inclined fixed screw tube 44 is fixedly connected to the side wheel frame.

[0046] Adjust the structure of the side wheel frame - inner top wheel 441 to abut and support against the inner side wall of the pressure vessel.

[0047] By this means, during the welding and turning of the pressure vessel, the pressure vessel can be fully supported, and since the supporting wheel and the inner top wheel 441 structures are used for support, it is convenient to push the inner support wheel 43 assembly after support to facilitate adjustment of the support position.

[0048] When the entire device is placed inside the pressure vessel, the spacing position of the inner support wheel 43 assembly is pre-slidably adjusted to facilitate uniform support.

[0049] Embodiment 2

[0050] As Figure 1-5 shown, on the basis of the structure of Embodiment 1, several end support components are respectively fixedly connected to the two ends of the long beam rod 1 in this embodiment; the end support components are fixedly connected to the long beam rod 1.

[0051] Each end support component includes a fixed connection pipe 21 fixedly connected to the long beam rod 1. A support rod 22 is threadedly connected to the fixed connection pipe 21, and a hexagonal convex seat 221 is integrally formed on the support rod 22. After adjusting the extension distance of the support rod 22, the support rod 22 is supported against the inner side wall of the pressure vessel to achieve sufficient support.

[0052] Embodiment 3

[0053] As Figure 1-5 shown, on the basis of the structure of Embodiment 2, several support plate components are respectively fixedly connected to the left and right side walls of the above-mentioned annular seat 3 in this embodiment, and the support plate components are distributed in a circular array. When the support surface of the support wheel and the support wheel 43 is too narrow and the support effect is too poor.

[0054] Specifically, the support plate component includes a fixed seat plate 511 fixedly connected to the annular seat 3. An adjusting rod sleeve 51 is fixedly connected to the fixed seat plate 511. An adjusting support rod is slidably connected to the adjusting rod sleeve 51, and a support top plate 52 is fixedly connected to the adjusting support rod. The adjusting support rod and the adjusting rod sleeve 51 are locked by a locking structure.

[0055] The locking structure includes several locking bolts threadedly connected to the adjusting rod sleeve 51, and the locking bolts are abutted and locked on the adjusting support rod. During the working process, after loosening the locking bolts, the adjusting support rod is slid to the adjusting support rod - the support top plate 52 is fully supported against the inner side wall of the pressure vessel, and the support surface is increased by the support top plate 52 to improve the support effect, so as to further avoid the technical defect of container deformation.

[0056] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the scope of the essence of the present invention should also belong to the protection scope of the present invention.

Claims

1. A pressure vessel welding device, characterized in that: It comprises a pressure vessel welding internal support mechanism, the pressure vessel welding internal support mechanism comprises a long beam rod, and a plurality of pressure vessel internal support assemblies are assembled and connected to the long beam rod; The inner support assembly of the pressure vessel comprises an annular seat slidably mounted on the long beam rod, a plurality of inner support wheel assemblies are fixedly connected to the outer side wall of the annular seat, the inner support wheel assembly comprises an adjustable long tube fixedly connected to the annular seat, an adjustable long rod with adjustable spacing is threadedly connected to the adjustable long tube, and a support top wheel is installed at the outer end of the adjustable long rod; The inner support wheel assembly also includes a plurality of side support top wheels fixedly connected to the adjustment long rod, the side support top wheels are arranged at an angle, and the spacing between the side support top wheels can be adjusted.

2. The pressure vessel welding device according to claim 1, characterized in that: The supporting top wheel comprises a wheel frame and a supporting wheel rotatably connected in the wheel frame; An adjusting screw is fixedly connected to the wheel frame, and the adjusting screw is threadedly connected to the adjusting long rod.

3. The pressure vessel welding device according to claim 1, characterized in that: The side support top wheel comprises a side wheel frame, and an inner top wheel is rotatably connected in the side wheel frame; The adjusting long rod is fixedly connected with an obliquely arranged oblique fixing screw tube, and the side wheel frame is fixedly connected with a screw rod which is threadedly connected to the oblique fixing screw tube.

4. The pressure vessel welding device according to claim 1, characterized in that: An internal thread structure is provided in the tube cavity of the adjusting long tube; The adjusting long rod is provided with an adaptable external thread structure, and the adjusting long rod is integrally formed with hexagonal convex ridges.

5. The pressure vessel welding device according to claim 1, characterized in that: The ends of both ends of the long beam are respectively fixedly connected with a plurality of end support assemblies; The end support assembly is fixedly connected to the long beam rod.

6. The pressure vessel welding device according to claim 5, characterized in that: The end support components all include a fixed connection pipe fixedly connected to the long beam rod, the fixed connection pipe is threadedly connected to a support rod, and the support rod is integrally formed with a hexagonal boss.

7. The pressure vessel welding device according to claim 1, characterized in that: A plurality of support plate assemblies are fixedly connected to the left and right side walls of the annular seat respectively.

8. The pressure vessel welding device according to claim 7, characterized in that: The support plate assembly comprises a fixed seat plate fixedly connected to the annular seat, an adjusting rod sleeve fixedly connected to the fixed seat plate, an adjusting support rod slidably connected to the adjusting rod sleeve, and a supporting top plate fixedly connected to the adjusting support rod.

9. The pressure vessel welding device according to claim 8, characterized in that: The adjusting support rod and the adjusting rod sleeve are locked by a locking structure; The locking structure comprises a plurality of locking bolts which are threadedly connected to the adjusting rod sleeve, and the locking bolts are abutted and locked on the adjusting support rod.

Images