Holding and positioning auxiliary device for CT detection of GIL pipeline
By designing a GIL pipeline CT detection and tight positioning auxiliary device including a fixing ring, a fixing seat, a tongue block and a locking component, the problems of inconvenient adjustment and unstable tightening of existing devices are solved, and the firm tightening of pipes of different diameters is achieved, and the accuracy and efficiency of CT detection are improved.
Patent Information
- Application Number
- CN202421406518.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-19
AI Technical Summary
The existing GIL pipeline tightening device is inconvenient to adjust and is unstable to hold it, which causes the pipeline to be displaced during the detection process, affecting the accuracy and efficiency of CT detection.
A GIL pipeline CT detection and tight positioning auxiliary device is designed, including a fixing ring, multiple fixing seats, sliding tongue blocks and locking components. By adjusting the position of the tongue block and locking it to adapt to pipes of different diameters, a stable tightness is achieved.
The device is easy to adjust and firmly hold, avoids pipe displacement, improves the accuracy and efficiency of CT detection, and reduces detection errors caused by deformation of the fixed ring.
Smart Images
Figure CN222735668U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixing and positioning of ultra-high voltage power transmission equipment, in particular to a GIL pipeline CT detection clamping and positioning auxiliary device. Background Art
[0002] GIL (gas insulated metal enclosed transmission lines), that is, gas insulated metal transmission lines, have the characteristics of large transmission capacity, flexible spatial distribution, and small environmental impact. They have been widely used in the field of large-capacity and long-distance power transmission. In the process of using CT to detect defects in ultra-high voltage GIL pipelines, the GIL pipeline needs to be stably clamped to ensure the safety and accuracy of the detection operation. Most of the existing clamping devices have problems such as inconvenient adjustment and unstable clamping, which causes the GIL pipeline to move during the detection operation, affecting the CT detection accuracy and detection efficiency. Utility Model Content
[0003] The technical problem to be solved by the utility model is that the existing clamping devices are often inconvenient to adjust and the clamping is unstable, which causes the GIL pipeline to be displaced during the detection operation, affecting the CT detection accuracy and detection efficiency.
[0004] In order to solve the above problems, the utility model provides a GIL pipeline CT detection clamping positioning auxiliary device, including a fixed ring installed outside the GIL pipeline, a plurality of fixed seats are evenly fixed on the fixed ring along its circumference, a tongue block is slidably provided in the fixed seat, the end of the tongue block can abut against the outer wall of the GIL pipeline, and a locking assembly is provided on the fixed seat for limiting the tongue block from sliding along the fixed seat.
[0005] The GIL pipeline CT detection and positioning auxiliary device provided by the utility model also has the following technical features:
[0006] The fixing seat is provided with a sliding groove, and the tongue block is arranged in the sliding groove and slides along the sliding groove.
[0007] The sliding groove is arranged along the radial direction of the fixing ring.
[0008] The cross sections of the tongue block and the slide groove are matched T-shaped or dovetail-shaped.
[0009] The locking assembly includes locking bolts and locking nuts. Multiple locking bolts are fixed on the fixing seat along the direction of the slide groove. The tongue block is provided with a sliding hole that slides with the locking bolt. The locking bolt is sleeved with a gasket and is threadedly connected with the locking nut.
[0010] An arc-shaped pad is fixed to the end of the tongue block, and the arc-shaped pad can fit with the outer wall of the GIL pipe.
[0011] The utility model has the following beneficial effects: by adjusting the position of the tongue block in the fixing seat and locking it through the locking assembly, it can adapt to GIL pipes of different diameters, and the adjustment is convenient and the clamping is firm, so as to avoid displacement of the GIL pipe during the detection operation and avoid affecting the CT detection accuracy and detection efficiency; at the same time, the tongue block can provide a stable supporting force for the fixing ring, realize the clamping of the GIL pipe and improve the stability of the fixing ring, reduce the detection error caused by the deformation of the fixing ring during the defect detection process, and improve the accuracy of CT imaging and the reliability of the detection result. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the working state of the utility model;
[0013] Figure 2 It is a schematic diagram of the tongue block retracted state;
[0014] Figure 3 This is a schematic diagram of the tongue extending state. DETAILED DESCRIPTION
[0015] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.
[0016] like Figures 1 to 3 As shown, the GIL pipeline CT detection clamping positioning auxiliary device of the utility model includes a fixing ring 11 installed outside the GIL pipeline 10, and a plurality of fixing seats 21 are evenly fixed on the fixing ring 11 along its circumference. A tongue block 22 is slidably provided in the fixing seat 21, and the end of the tongue block 22 can abut against the outer wall of the GIL pipeline 10. A locking assembly 30 is provided on the fixing seat 21 for limiting the tongue block 22 from sliding along the fixing seat 21.
[0017] The utility model adjusts the position of the tongue block 22 in the fixing seat 21 and locks it through the locking assembly 30 to adapt to GIL pipes 10 of different diameters. The adjustment is convenient and the clamping is firm, so as to avoid displacement of the GIL pipe 10 during the detection operation and avoid affecting the CT detection accuracy and detection efficiency. At the same time, the tongue block 22 can provide a stable supporting force for the fixing ring 11, so as to clamp the GIL pipe 10 and improve the stability of the fixing ring 11, reduce the detection error caused by the deformation of the fixing ring 11 during the defect detection process, and improve the accuracy of CT imaging and the reliability of the detection results.
[0018] The fixing ring 11 is provided with a CT detection device, which includes a ray source and an imaging plate, and is used to detect defects in the GIL pipeline 10 . The ray source and the imaging plate can be arranged on the same side or different sides of the fixing ring 11 .
[0019] Preferably, a slide groove 23 is formed on the fixing seat 21 , and the tongue block 22 is disposed in the slide groove 23 and slides along the slide groove 23 .
[0020] Preferably, the sliding groove 23 is arranged along the radial direction of the fixing ring 11 .
[0021] Preferably, the GIL pipeline CT detection clamping and positioning auxiliary device is characterized in that the cross-sections of the tongue block 22 and the slide groove 23 are matched T-shaped or dovetail-shaped to avoid failure of the connection between the fixing seat 21 and the tongue block 22, while realizing fast and stable clamping and positioning of the GIL pipeline 10.
[0022] Preferably, the locking assembly 30 includes a locking bolt 31 and a locking nut 32. Multiple locking bolts 31 are fixed on the fixing seat 21 along the direction of the slide groove 23. A sliding hole 33 that slides with the locking bolt 31 is opened on the tongue block 22. A gasket 34 is sleeved on the locking bolt 31 and is threadedly connected to the locking nut 32.
[0023] First, loosen the locking nut 32, slide and adjust the position of the locking tongue block 22 in the slide groove 23, so that the ends of multiple tongue blocks 22 are in contact with the outer wall of the GIL pipe 10, and then tighten the locking nut 32 to lock the position of the tongue block 22 in the slide groove 23 to achieve a tight hold on the GIL pipe 10.
[0024] Preferably, an arc-shaped pad 12 is fixed to the end of the tongue block 22 , and the arc-shaped pad 12 can fit with the outer wall of the GIL pipe 10 to increase the contact area between the tongue block 42 and the outer wall of the GIL pipe 10 .
[0025] The arc pad 12 is made of a soft material, such as rubber, polyethylene or silicone, to avoid pinching the painted surface of the GIL pipe 10 .
[0026] The working principle of the utility model is as follows:
[0027] First, loosen the locking nut 32, slide and adjust the position of the locking tongue block 22 in the slide groove 23, so that the arc pads 12 at the ends of multiple tongue blocks 22 are all in contact with the outer wall of the GIL pipe 10, and then tighten the locking nut 32 to lock the position of the tongue block 22 in the slide groove 23 to achieve the clamping of the GIL pipe 10. It is suitable for GIL pipes 10 of different diameters, easy to adjust and firmly clamped, avoiding displacement of the GIL pipe 10 during the detection operation, avoiding affecting the CT detection accuracy and detection efficiency; at the same time, the tongue block 22 can provide a stable supporting force for the fixing ring 11, achieve the clamping of the GIL pipe 10 and improve the stability of the fixing ring 11, reduce the detection error caused by the deformation of the fixing ring 11 during the defect detection process, and improve the accuracy of CT imaging and the reliability of the detection results.
[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.
Claims
1. A GIL pipeline CT detection clamping positioning auxiliary device, comprising a fixing ring (11) installed outside the GIL pipeline (10), characterized in that: A plurality of fixing seats (21) are evenly fixed on the fixing ring (11) along its circumference, a tongue block (22) is slidably provided inside the fixing seat (21), an end of the tongue block (22) can abut against an outer wall of the GIL pipe (10), and a locking assembly (30) is provided on the fixing seat (21) for limiting the tongue block (22) from sliding along the fixing seat (21).
2. The GIL pipeline CT detection holding and positioning auxiliary device according to claim 1 is characterized in that: The fixing seat (21) is provided with a sliding groove (23), and the tongue block (22) is arranged in the sliding groove (23) and slides along the sliding groove (23).
3. The GIL pipeline CT detection holding and positioning auxiliary device according to claim 2 is characterized in that: The sliding groove (23) is arranged along the radial direction of the fixing ring (11).
4. The GIL pipeline CT detection holding and positioning auxiliary device according to claim 2 is characterized in that: The cross-sections of the tongue block (22) and the slide groove (23) are matched T-shaped or dovetail-shaped.
5. The GIL pipeline CT detection holding and positioning auxiliary device according to claim 2 is characterized in that: The locking assembly (30) comprises locking bolts (31) and locking nuts (32). The plurality of locking bolts (31) are fixed to the fixing seat (21) along the direction of the sliding grooves (23). The tongue block (22) is provided with sliding holes (33) that are slidably matched with the locking bolts (31). The locking bolts (31) are sleeved with gaskets (34) and are threadedly connected to the locking nuts (32).
6. The GIL pipeline CT detection holding and positioning auxiliary device according to claim 1 is characterized in that: An arc-shaped pad (12) is fixed to the end of the tongue block (22), and the arc-shaped pad (12) can fit with the outer wall of the GIL pipe (10).