Pipe fitting butt weld single-wall external penetration method piece distribution device

Abstract

The utility model discloses a pipe fitting butt weld single-wall external penetration method piece distribution device which comprises an arc-shaped supporting piece, a containing area is arranged on the side wall of the arc-shaped supporting piece, a film is placed in the containing area, one side, far away from the containing area, of an arc-shaped supporting plate is further connected with an elastic supporting assembly, and the elastic supporting assembly is connected with the arc-shaped supporting piece. The side wall of the arc-shaped supporting piece abuts against one side of the inner wall of the pipe fitting weld joint, and the elastic supporting assembly abuts against the other side of the inner wall of the pipe fitting weld joint so that the film can be tightly attached to the pipe fitting weld joint. The pipe fitting butt weld single-wall external penetration method piece distribution device effectively solves the problems that the internal space of a pipe fitting is narrow and small, and the piece pasting operation cannot be completed by one hand or two hands, and can rapidly complete the piece pasting operation, improve the working efficiency, realize single-wall external penetration, improve the radiographic detection sensitivity, reduce the missing detection of product weld defects and guarantee the product quality.

Description

Technical Field

[0001] The utility model belongs to the technical field of single-wall external penetration method for butt welds, and particularly relates to a film placement device for single-wall external penetration method of pipe fitting butt welds. Background Art

[0002] In the pipeline welds in the field of ocean engineering, especially in the butt welds of pipe fittings with diameters ranging from 4 inches to 12 inches, due to the small pipe diameter and the lack of a suitable film placement device, it is impossible to place the film inside the pipe fitting, and thus the single-wall external penetration method cannot be realized. Therefore, the double-wall single-image radiography is mostly preferred. However, there are problems with the double-wall single-image radiography method, such as incomplete detection of the heat-affected zone and the inability of the film to closely adhere to the weld at some weld positions. After actual investigation, such welds can only be detected by the single-wall external penetration method. But for the single-wall external penetration method, the film needs to be pasted on the inner side of the pipe fitting weld. Due to the narrow internal space of the pipe fitting, it is impossible to complete the film placement operation with one hand, which increases the detection difficulty and reduces the detection efficiency.

[0003] Therefore, there is an urgent need to design a film placement device for single-wall external penetration method of pipe fitting butt welds to solve the problems mentioned above, such as the inability to complete the film placement operation with one hand for single-wall external penetration, which increases the detection difficulty and reduces the detection efficiency. Summary of the Utility Model

[0004] To solve the technical problems mentioned in the background art, such as the inability to complete the film placement operation with one hand for single-wall external penetration, which increases the detection difficulty and reduces the detection efficiency, a film placement device for single-wall external penetration method of pipe fitting butt welds is provided to solve the above problems.

[0005] To achieve the above purpose, the specific technical solution of the film placement device for single-wall external penetration method of pipe fitting butt welds of the present utility model is as follows:

[0006] A film placement device for single-wall external penetration method of pipe fitting butt welds includes an arc-shaped support member. An accommodation area is provided on the side wall of the arc-shaped support member, and a film is placed in the accommodation area. On the side of the arc-shaped support plate away from the accommodation area, an elastic support assembly is further connected. The side wall of the arc-shaped support member abuts against one side of the inner wall of the pipe fitting weld, and the elastic support assembly abuts against the other side of the inner wall of the pipe fitting weld to tightly attach the film to the pipe fitting weld.

[0007] Further, the accommodation area includes a first accommodation area and a second accommodation area. The first accommodation area and the second accommodation area are stacked on the side wall of the arc-shaped support member, and the second accommodation area is arranged between the first accommodation area and the side wall of the arc-shaped support member.

[0008] Further, the film is arranged in the first accommodation area, and a lead plate is placed in the second accommodation area.

[0009] Further, a support plate is provided on the arc-shaped support member, and the elastic support assembly is arranged on the support plate.

[0010] Further, the elastic support assembly includes a support rod. A limiting member is provided on the support plate, and a through hole is formed in the limiting member. The support rod is slidably arranged in the through hole.

[0011] Further, the elastic support assembly further includes a spring. The spring is sleeved outside the support rod. A first abutting member is provided at one end of the support rod away from the limiting member. One end of the spring abuts against the first abutting member, and the other end of the spring abuts against the limiting member.

[0012] Further, a second abutting member is provided at one end of the support rod away from the first abutting member. The second abutting member abuts against or separates from the limiting member.

[0013] Further, it further includes a first long rod handle. A first connecting seat is arranged along the axial direction of the arc-shaped support member. The first connecting seat is used to connect the first long rod handle.

[0014] Further, it further includes a second long rod handle. A second connecting seat is arranged along the axial direction of the arc-shaped support member on the first abutting member. The second connecting seat is used to connect the second long rod handle.

[0015] Further, the first long rod handle and / or the second long rod handle are both provided with scales along the length direction.

[0016] The device for arranging films by single-wall external penetration method for butt welds of pipe fittings of the present utility model has the following advantages:

[0017] By providing a receiving area on the side wall of the arc-shaped support member, a film is placed in the receiving area. An elastic support assembly is also connected to the side of the arc-shaped support plate away from the receiving area. The side wall of the arc-shaped support member abuts against one side of the inner wall of the pipe fitting weld, and the elastic support assembly abuts against the other side of the inner wall of the pipe fitting weld to tightly attach the film to the pipe fitting weld. It effectively solves the problem that the internal space of the pipe fitting is narrow and the film pasting operation cannot be completed with one hand or both hands, can quickly complete the film pasting work, improves work efficiency, realizes single-wall external penetration, improves the sensitivity of ray detection, reduces the missed detection of product weld defects, and guarantees product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is the top view of the device for arranging films by single-wall external penetration method for butt welds of pipe fittings of the present utility model;

[0019] Figure 2 is the side view of the device for arranging films by single-wall external penetration method for butt welds of pipe fittings of the present utility model;

[0020] Figure 3 is the structural schematic diagram of the receiving area of the present utility model.

[0021] Explanation of the marks in the figures:

[0022] 1. Arc-shaped support member; 11. Accommodating area; 111. First accommodating area; 1111. First limiting arm; 1112. Second limiting arm; 112. Second accommodating area; 2. Elastic support assembly; 21. Support rod; 22. Spring; 23. First abutting member; 24. Second abutting member; 3. Support plate; 4. Limiting member; 5. First long rod handle; 6. First connecting seat; 7. Second connecting seat. Detailed implementation manners

[0023] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. 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.

[0024] Those skilled in the art can understand that although some embodiments herein include some features included in other embodiments but not other features, the combination of the features of different embodiments means within the scope of the present utility model and forms different embodiments. For example, in the claims, any one of the claimed embodiments can be used in any combination.

[0025] Next, refer to the attached Figure 1 to the attached Figure 3 Describe the single-wall external penetration method film laying device for the butt weld of pipe fittings of the present utility model.

[0026] When welding special pipe fittings and pipe fittings, it is necessary to detect the weld seam. Use a camera to take pictures of the weld seam to detect whether there are welding defects. When detecting the weld seam, it is necessary to paste a film at the inner wall weld of the pipe fitting. The film is closely attached to the weld seam, and a camera outside the pipe fitting takes pictures for detection. In the prior art, when using single-wall external penetration, the film needs to be pasted on the inner side of the pipe fitting weld. Due to the narrow internal space of the pipe fitting, the film pasting operation cannot be completed with one hand, resulting in detection difficulties and reducing the detection efficiency. Therefore, it is urgent to design a single-wall external penetration method film laying device for the butt weld of pipe fittings to solve the above-mentioned problems.

[0027] As Figure 1 and Figure 2As shown in the figure, the film placement device for single-wall external penetration of the butt weld of pipe fittings in the present utility model includes an arc-shaped support member 1. A receiving area 11 is provided on the side wall of the arc-shaped support member 1, and a film is placed in the receiving area 11. An elastic support assembly 2 is further connected to the side of the arc-shaped support plate 3 away from the receiving area 11. The side wall of the arc-shaped support member 1 abuts against one side of the inner wall of the pipe fitting weld, and the elastic support assembly 2 abuts against the other side of the inner wall of the pipe fitting weld to press the film tightly against the pipe fitting weld. In this embodiment, the arc-shaped support member 1 is a semi-circular support member. In this embodiment, the material of the arc-shaped support member 1 can be selected as a material with strong magnetic suction force, which can be adsorbed on the inner wall of the pipe fitting to enhance the fixing force of the arc-shaped support member 1. Moreover, the arc-shaped support member 1 adopts a hollow structure, which can reduce the mass of the entire device and save materials at the same time.

[0028] By providing a receiving area 11 on the side wall of the arc-shaped support member 1, placing a film in the receiving area 11, connecting an elastic support assembly 2 to the side of the arc-shaped support plate 3 away from the receiving area 11, making the side wall of the arc-shaped support member 1 abut against one side of the inner wall of the pipe fitting weld, and the elastic support assembly 2 abut against the other side of the inner wall of the pipe fitting weld to press the film tightly against the pipe fitting weld. It effectively solves the problem that the internal space of the pipe fitting is narrow and the film placement operation cannot be completed with one hand or both hands. During use, only need to pre-place the film in the receiving area 11, place the film placement device for single-wall external penetration of the butt weld of pipe fittings in the weld inside the pipe fitting, make the film close to the weld, and take a camera photo to detect whether there are defects in the weld, which can quickly complete the film placement work, improve work efficiency, achieve single-wall external penetration, improve the sensitivity of ray detection, reduce the missed detection of weld defects of products, and ensure product quality.

[0029] Further, as Figure 1 and Figure 3 shown, the receiving area 11 includes a first receiving area 111 and a second receiving area 112. The first receiving area 111 and the second receiving area 112 are stacked on the side wall of the arc-shaped support member 1, and the second receiving area 112 is provided between the first receiving area 111 and the side wall of the arc-shaped support member 1. The film is arranged in the first receiving area 111, and a lead plate is placed in the second receiving area 112 to block the emission line for protection of the emission line.

[0030] The first receiving area 111 is an open structure. An opening is provided in the first receiving area 111 to facilitate the exposure of the film and the fitting of the film and the weld. First limiting arms 1111 and second limiting arms 1112 are provided on both sides of the first receiving area 111. The film is limited in the first receiving area 111 by the first limiting arms 1111 and the second limiting arms 1112. When placing the film in the first receiving area 111, insert the film into the first receiving area 111 from one end of the arc-shaped support plate 3, and the film can also be inserted at the other end of the arc-shaped support plate 3 to adjust the position of the film in the first receiving area 111 according to actual needs.

[0031] Furthermore, as Figure 1 shown, a support plate 3 is provided on the arc-shaped support member 1, and the elastic support assembly 2 is arranged on the support plate 3. One end of the support plate 3 is connected to one end of the arc-shaped support member 1, and the other end of the support plate 3 is connected to the other end of the arc-shaped support member 1. The arc-shaped support plate 3 is supported by the support plate 3. The support plate 3 is provided on the one hand to enhance the strength of the arc-shaped support member 1, making the arc-shaped support member 1 not easily deformed, and on the other hand, by providing the support plate 3, the arc-shaped support member 1 and the elastic support assembly 2 are connected.

[0032] Furthermore, as Figure 1 shown, the elastic support assembly 2 includes a support rod 21. A limiting member 4 is provided on the support plate 3. A through hole is formed in the limiting member 4, and the support rod 21 is slidably arranged in the through hole. The limiting member 4 plays a role in guiding and supporting the support rod 21. The elastic support assembly 2 further includes a spring 22. The spring 22 is sleeved outside the support rod 21. A first abutting member 23 is arranged at one end of the support rod 21 away from the limiting member 4. One end of the spring 22 abuts against the first abutting member 23, and the other end of the spring 22 abuts against the limiting member 4. A second abutting member 24 is arranged at one end of the support rod 21 away from the first abutting member 23. The second abutting member 24 abuts against or separates from the limiting member 4. By providing the elastic support assembly 2, according to the inner diameter size of different pipe fittings, the length of the elastic support pipe fitting extending out of the support plate 3 can be automatically adjusted through the spring 22, and then the inner diameter of different sizes of pipe fittings can be adapted, achieving the effect of being reusable. By providing the first abutting member 23 and the second abutting member 24, it is ensured that the support rod 21 can be slidably arranged in the limiting member 4 without detaching from the limiting member 4.

[0033] Furthermore, as Figure 1 shown, the device for arranging single-wall external penetration method cloth pieces for the butt weld of pipe fittings in the present utility model further includes a first long rod handle 5. A first connecting seat 6 is arranged on the arc-shaped support member 1 along the axial direction of the arc-shaped support member 1. The first connecting seat 6 is used to connect the first long rod handle 5. The device for arranging single-wall external penetration method cloth pieces for the butt weld of pipe fittings in the present utility model further includes a second long rod handle. A second connecting seat 7 is arranged on the first abutting member 23 along the axial direction of the arc-shaped support member 1. The second connecting seat 7 is used to connect the second long rod handle.

[0034] The first long rod handle 5 and the second long rod handle are arranged in parallel. The first long rod handle 5 is threadedly connected to the first connecting seat 6, and the second long rod handle is threadedly connected to the second connecting seat 7. By providing the first long rod handle 5 and the second long rod handle, it is used to pick up the device for single-wall external penetration film placement of the pipe fitting butt weld. Place the device for single-wall external penetration film placement of the pipe fitting butt weld into the pipe fitting, make the film adhere to the weld, and at the same time, the first long rod handle 5 and the second long rod handle can be held, rotate the arc-shaped support 1, move along the inner wall of the weld, and arrange the film at multiple positions to avoid missing the detection positions. When the detection is completed, hold the first long rod handle 5 and the second long rod handle, and take out the device for single-wall external penetration film placement of the pipe fitting butt weld from the pipe fitting.

[0035] Further, as Figure 1 and Figure 2 shown, scales are arranged along the length direction of the first long rod handle 5 and / or the second long rod handle. By providing the scales, the height of the weld in the vertical direction can be determined according to the actual size, and then the depth of the first long rod handle 5 and the second long rod handle extending into the pipe fitting can be controlled, and then the film can be accurately placed at the weld, improving the detection efficiency.

[0036] Further, as Figure 1 and Figure 2 shown, there are multiple first connecting seats 6, and the multiple first connecting seats 6 are evenly distributed along the circumferential direction of the arc-shaped support 1. Each first connecting seat 6 can be connected to the first long rod handle 5, or the first long rod handle 5 can be arranged on one of the multiple first connecting seats 6 according to the actual situation, as long as it is convenient to pick up the device for single-wall external penetration film placement of the pipe fitting butt weld through the first long rod handle 5 and the second long rod handle. At the same time, by evenly distributing the multiple first connecting seats 6 on the arc-shaped support 1, the position of the film on the arc-shaped support 1 can be placed with reference to the position of the first support seat, playing a role of marking.

[0037] The usage steps of the device for single-wall external penetration film placement of the pipe fitting butt weld in the present utility model are as follows:

[0038] First, calculate the required number of penetrations according to the radiographic process and wall thickness of the pipe fitting, and secondly, arrange the positioning marks for the entire circumference of the weld on the outer surface of the weld;

[0039] Then, place the cassette loaded with the film into the first accommodation area 111, thread the first long rod handle 5 onto the first connecting seat 6, thread the second long rod handle onto the second connecting seat 7, and then measure the distance value from the center of the weld on the outside of the pipe fitting to the end of the pipe fitting;

[0040] Use the first long rod handle 5 and observe the scale on it. Send the cassette to a position where the distance from the center of the outer weld of the pipe fitting to the end of the pipe fitting is the same. The support rod 21 extends under the action of the spring 22, so that the arc-shaped support member 1 and the first abutting member 23 abut against the weld on the inner wall of the pipe fitting, and fix the single-wall external penetration film laying device for the butt weld of the pipe fitting at the weld on the inner wall of the pipe fitting;

[0041] Finally, the ray exposure process of the workpiece to be inspected can be carried out.

[0042] Obviously, the above embodiments of the present invention are only examples for clearly explaining the present invention, and are not intended to limit the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A single-wall outer-penetration method sheeting device for butt welds of pipe fittings, characterized in that: It includes an arc-shaped support member, a side wall of the arc-shaped support member is provided with a accommodating area, a film is placed in the accommodating area, and an elastic support component is connected to the side of the arc-shaped support plate away from the accommodating area. The side wall of the arc-shaped support member abuts against one side of the inner wall of the pipe weld, and the elastic support component abuts against the other side of the inner wall of the pipe weld to stick the film tightly to the pipe weld.

2. The single-wall outer-penetration method sheeting device for pipe butt welds according to claim 1 is characterized in that: The accommodating area includes a first accommodating area and a second accommodating area. The first accommodating area and the second accommodating area are stacked on the side wall of the arc-shaped support member, and the second accommodating area is arranged between the first accommodating area and the side wall of the arc-shaped support member.

3. The single-wall outer-penetration method sheeting device for pipe butt welds according to claim 2 is characterized in that: The film is arranged in the first accommodating area, and the lead plate is placed in the second accommodating area.

4. The single-wall outer-penetration method sheeting device for pipe butt welds according to claim 1 is characterized in that: A support plate is arranged on the arc-shaped support member, and the elastic support component is arranged on the support plate.

5. The single-wall outer-penetration method sheeting device for pipe butt welds according to claim 4 is characterized in that: The elastic support component comprises a support rod, a limiting piece is arranged on the support plate, a through hole is opened on the limiting piece, and the support rod is slidably arranged in the through hole.

6. The single-wall outer-penetration method sheeting device for pipe butt welds according to claim 5 is characterized in that: The elastic support assembly also includes a spring, which is sleeved outside the support rod. A first abutment is provided at one end of the support rod away from the limiting member. One end of the spring abuts against the first abutment, and the other end of the spring abuts against the limiting member.

7. The single-wall outer-penetration method sheeting device for pipe butt welds according to claim 4 is characterized in that: A second abutment member is arranged at one end of the support rod away from the first abutment member, and the second abutment member abuts against or is separated from the limiting member.

8. The single-wall outer-penetration method sheeting device for pipe butt welds according to claim 1 is characterized in that: It also includes a first long pole handle. The arc-shaped support member is provided with a first connecting seat along the axial direction of the arc-shaped support member. The first connecting seat is used to connect the first long pole handle.

9. The single-wall outer-penetration method sheeting device for pipe butt welds according to claim 6 is characterized in that: It also includes a second long pole handle. The first abutment member is provided with a second connecting seat along the axial direction of the arc-shaped support member. The second connecting seat is used to connect the second long pole handle.

10. The single-wall outer-penetration method sheeting device for pipe butt welds according to claim 9 is characterized in that: The first long pole handle and / or the second long pole handle are both provided with scales along the length direction.

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