A mounting bracket for a small diameter tube ray flaw detector
By designing a mounting bracket for a small-diameter tube X-ray flaw detector, the problems of fixing the X-ray machine and controlling the focal length eccentricity were solved, thus achieving stability and adjustability of the X-ray imaging effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING JIANFENG IND TECH SERVICE CO LTD
- Filing Date
- 2025-08-14
- Publication Date
- 2026-06-02
AI Technical Summary
In current radiographic inspection of small-diameter pipe welds, it is difficult to fix the X-ray machine and accurately control the focal length and eccentricity, resulting in poor imaging quality and difficulty in taking qualified radiographic films.
Design a mounting bracket for a small-diameter pipe X-ray flaw detector, including a small-diameter pipe connection part, a X-ray flaw detector connection part, and a strap. By binding with the strap, the X-ray flaw detector can be detached and installed, and the focus and eccentricity can be adjusted to ensure imaging effect.
Stable installation of the X-ray flaw detector and adjustable focus and offset were achieved, ensuring high-quality X-ray imaging.
Smart Images
Figure CN224315832U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of equipment maintenance, and in particular to a mounting bracket for a small-diameter pipe X-ray flaw detector. Background Technology
[0002] Small-diameter pipes refer to pipes with an outer diameter ≤ 100mm. In chemical plants, small-diameter pipe welds account for nearly 80% of the total number of welds. Currently, the weld seams of small-diameter pipes are generally radiographed using the double-wall double-image method to examine their butt joint circumferential seams. Based on the image characteristics of the inspected weld seam on the film, it is further divided into elliptical imaging and superimposed imaging. When performing radiographic inspection on small-diameter pipes, for elliptical imaging, the X-ray machine must be 500-600mm away from the weld seam; if in the air, it is difficult to fix the X-ray machine and achieve a focal length accurate to 500-600mm; simultaneously, the X-ray machine must be rotated 90° or 60° around the small-diameter pipe in the air to take the film, while also controlling the X-ray machine to be offset along its length by approximately one weld seam width. If the eccentricity is too large and the elliptical opening width is too large, narrow root defects (cracks, incomplete penetration, etc.) may be missed, or the image distortion may be too great to judge. If the eccentricity is too small and the elliptical opening width is too small, it will be difficult to separate the root defects of the source side weld and the film side weld. Therefore, the eccentricity between the X-ray machine and the weld must be controlled in the air. Only when the eccentricity and focal length are appropriate and X-ray imaging with a certain energy is used can qualified X-ray films be produced.
[0003] Therefore, it is necessary to design an auxiliary device for installing a radiographic flaw detector that is simple in structure and easy to use. Summary of the Invention
[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a mounting bracket for a small-diameter pipe X-ray flaw detector. This bracket has a simple structure and low modification cost, allowing maintenance personnel to easily install the X-ray flaw detector around the small-diameter section. It also facilitates the adjustment of the radial distance and offset distance between the X-ray flaw detector and the weld seam of the small-diameter pipe, ensuring the X-ray imaging effect.
[0005] The technical solution of this utility model is: a mounting bracket for a small-diameter pipe X-ray flaw detector, including a small-diameter pipe connecting part, a X-ray flaw detector connecting part, and several straps. The small-diameter pipe connecting part includes a connecting rod, and mounting sections and connecting sections respectively fixed to both ends of the connecting rod. The mounting sections and connecting sections are arranged in parallel and are perpendicular to the connecting rod. The mounting sections are angle steel sections and the connecting sections are arc-shaped sections. The outer surface of the mounting sections and the outer arc surface of the connecting sections face the connecting rod. The X-ray flaw detector connecting parts are arc-shaped sections, and there are one or more of them. The outer arc surface of the arc-shaped X-ray flaw detector connecting parts faces the connecting sections and overlaps the inner arc surface of the connecting sections. The mounting section of the small-diameter pipe connecting part is snapped onto the small-diameter pipe and bound by at least two straps. The inner arc surface of the outer X-ray flaw detector connecting part forms the binding surface of the X-ray flaw detector.
[0006] The outer arc surface of the connecting section and the outer arc surface of the X-ray flaw detector connecting part both face the connecting rod.
[0007] The connecting rod is made of a round tube with a notch at one end, which is snapped onto the outer side of the mounting section and fixed by welding.
[0008] The binding strap is a cable tie.
[0009] The cross-section of the connecting part of the X-ray flaw detector is a minor arc segment, and it is adapted to the circumference of the X-ray flaw detector.
[0010] The above technical solution has the following beneficial effects:
[0011] 1. The mounting bracket for the small-diameter pipe X-ray flaw detector includes a small-diameter pipe connecting part, a X-ray flaw detector connecting part, and several binding straps. The small-diameter pipe connecting part includes a connecting rod, and mounting sections and connecting sections respectively fixed to both ends of the connecting rod. The mounting sections are used to bind to the small-diameter section by the binding straps to form a detachable connection, and the connecting sections are used to connect to the X-ray flaw detector connecting part and are also bound by binding straps to form a detachable connection. The mounting sections and connecting sections are arranged in parallel and perpendicular to the connecting rod, that is, the entire small-diameter pipe connecting part has an "I"-shaped structure. The mounting sections are angle steel sections, and the connecting sections are arc-shaped sections, with the outer surfaces of the mounting sections and the outer arc surfaces of the connecting sections facing the connecting rod. The radiographic testing machine connection part is an arc-shaped segment, and there are one or more of them. The outer arc surface of the arc-shaped radiographic testing machine connection part faces the connecting section and overlaps the inner arc surface of the connecting section. Since the connecting section and the radiographic testing machine connection part have the same orientation, the stability of the overlapping radiographic testing machine connection parts can be ensured. By adjusting the number of radiographic testing machine connection parts, the distance between the outer layer radiographic testing machine connection parts and the installation section can be adjusted. The installation section of the small-diameter pipe connection part is snapped onto the small-diameter pipe and bound by at least two straps, allowing the small-diameter pipe connection part to rotate around the circumference of the small-diameter pipe. The inner arc surface of the outer layer radiographic testing machine connection part forms the binding surface of the radiographic testing machine. The radiographic testing machine is positioned on the inner arc surface of the outer layer radiographic testing machine connection part and bound to the connecting section by straps. This allows the radial distance (focal length) of the radiographic testing machine from the small-diameter pipe and the offset distance (eccentricity) from the weld to be adjusted and adapted, ensuring the radiographic imaging effect.
[0012] 2. The connecting rod is made of round tube with a notch at one end. It is snapped onto the outer side of the installation section and fixed by welding. This reduces the overall weight while ensuring the connection strength between the connecting rod and the installation section.
[0013] 3. The cross-section of the connecting part of the X-ray flaw detector is a minor arc segment, which is adapted to the circumference of the X-ray flaw detector to ensure the connection stability of the X-ray flaw detector at the connecting part of the outer X-ray flaw detector.
[0014] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 for Figure 1 View from direction A;
[0017] Figure 3 This is a schematic diagram showing the connection between this utility model and a small-diameter pipe.
[0018] In the attached diagram, 1 is the small-diameter pipe connection part, 11 is the connecting rod, 12 is the installation section, 13 is the connecting section, 2 is the X-ray flaw detector connection part, and 3 is the binding strap. Detailed Implementation
[0019] See Figures 1 to 3 This is a specific embodiment of a mounting bracket for a small-diameter pipe X-ray flaw detector. The mounting bracket includes a small-diameter pipe connecting part 1, a X-ray flaw detector connecting part 2, and several straps 3, specifically, cable ties are used. The small-diameter pipe connecting part 1 includes a connecting rod 11, and mounting sections 12 and connecting sections 13 respectively fixed to both ends of the connecting rod. The mounting sections 12 and connecting sections 13 are arranged in parallel and perpendicular to the connecting rod 11. The mounting section 12 is an angle steel section, and the connecting section 13 is an arc-shaped section. The outer surface of the mounting section and the outer arc surface of the connecting section both face the connecting rod. In this embodiment, the connecting rod 11 is a round tube with a notch at one end, which is snapped onto the outer surface of the mounting section 12 and fixed by welding. Similarly, the other end of the round tube is welded to the outer arc surface of the connecting section. The X-ray flaw detector connecting part 2 is an arc-shaped segment, and there are one or more of them. The outer arc surface of the X-ray flaw detector connecting part 2 faces the connecting section 13 and overlaps the inner arc surface of the connecting section 13. That is, the outer arc surface of the connecting section 13 and the outer arc surface of the X-ray flaw detector connecting part 2 both face the connecting rod 11. In order to ensure the binding stability of the X-ray flaw detector, the cross-section of the X-ray flaw detector connecting part is a minor arc segment and is adapted to the circumferential surface of the X-ray flaw detector. The mounting section 12 of the small-diameter pipe connecting part is snapped onto the small-diameter pipe and bound by at least two straps 3. The inner arc surface of the outer X-ray flaw detector connecting part forms the binding surface of the X-ray flaw detector.
[0020] The working principle of this invention is as follows: Based on the focal length, the number of X-ray inspection machine connecting parts is determined. This number of connecting parts is then overlapped on the inner arc surface of the connecting section of the small-diameter pipe connecting part. The X-ray inspection machine is then supported on the inner arc surface of the outer connecting part. Multiple cable ties are used to bind the X-ray inspection machine and its connecting parts to the inner arc surface of the connecting section of the small-diameter pipe connecting part. Obviously, the X-ray source of the X-ray inspection machine needs to extend beyond the connecting part and the connecting section of the small-diameter pipe connecting part, facing the mounting section of the small-diameter pipe connecting part. The mounting section is then snapped onto the surface of the small-diameter pipe. After adjusting the length offset of the X-ray source from the weld, it is bound with at least two cable ties. This determines the focal length and eccentricity between the X-ray inspection machine and the weld, allowing it to rotate circumferentially around the small-diameter pipe.
Claims
1. A mounting bracket for a small-diameter pipe X-ray flaw detector, characterized in that: It includes a small-diameter pipe connection (1), a radiographic flaw detector connection (2), and several straps (3). The small-diameter pipe connection part (1) includes a connecting rod (11), and an installation section (12) and a connecting section (13) respectively fixed to both ends of the connecting rod. The installation section (12) and the connecting section (13) are arranged in parallel and are perpendicular to the connecting rod (11). The installation section (12) is an angle steel section and the connecting section (13) is an arc-shaped section. The outer surface of the installation section and the outer arc surface of the connecting section both face the connecting rod. The X-ray flaw detector connecting part (2) is an arc-shaped segment, and there are one or more of them. The outer arc surface of the X-ray flaw detector connecting part (2) faces the connecting section (13) and overlaps the inner arc surface of the connecting section (13). The mounting section (12) of the small-diameter pipe connection is snapped onto the small-diameter pipe and bound by at least two straps (3). The inner arc surface of the outer layer of the X-ray flaw detector connection forms the binding surface of the X-ray flaw detector.
2. The mounting bracket for the small-diameter pipe X-ray flaw detector according to claim 1, characterized in that: The outer arc surface of the connecting section (13) and the outer arc surface of the X-ray flaw detector connecting part (2) both face the connecting rod (11).
3. The mounting bracket for the small-diameter pipe X-ray flaw detector according to claim 1, characterized in that: The connecting rod (11) is made of a round tube with a notch at one end, which is snapped onto the outer side of the mounting section (12) and fixed by welding.
4. The mounting bracket for the small-diameter pipe X-ray flaw detector according to claim 1, characterized in that: The binding strap (3) is a cable tie.
5. The mounting bracket for the small-diameter pipe X-ray flaw detector according to claim 1, characterized in that: The cross-section of the connecting part of the X-ray flaw detector is a minor arc segment, and it is adapted to the circumference of the X-ray flaw detector.