Double-toothed-ring guide rail for CT detection of GIL pipeline

Abstract

The utility model relates to a double-toothed-ring guide rail for GIL pipeline CT detection, which comprises an annular guide rail (10), a radiation source (21) and a detection plate (22) are arranged on the annular guide rail (10) in a sliding manner, and the radiation source (21) and the detection plate (22) are oppositely arranged along the radial direction of the annular guide rail (10); the annular guide rail (10) is composed of two semi-ring guide rails (23), and the two semi-ring guide rails (23) can be oppositely arranged and fixed to form an annular structure. The annular guide rail (10) is divided into two semi-annular guide rails (23) to be assembled and disassembled, so that the device can be conveniently moved away from or enter an operation space between the GIL pipelines (13), the device can be quickly assembled or disassembled, the use is flexible and convenient, the device is suitable for defect detection of the GIL pipelines (13) in a field service state, and the field operation efficiency is improved; and meanwhile, the stable relative movement of the radiation source (21) and the detection plate (22) can be ensured, the imaging precision is not influenced, and the weight of the whole device can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of detection of ultra-high voltage power transmission equipment, in particular to a double-toothed ring guide rail for GIL pipeline CT detection. 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 UHV power transmission system, CT is needed to perform early defect detection and early warning on the GIL pipeline. Traditional GIL pipeline inspection devices are usually large in size and weight, and are not suitable for the inspection of GIL pipelines in service on site. Disassembling the GIL pipeline for inspection affects its use and is time-consuming and labor-intensive. Utility Model Content

[0003] The technical problem to be solved by the utility model is that the existing GIL pipeline detection device is usually large in size and weight, and is not suitable for detecting GIL pipelines in service on site. Disassembling the GIL pipeline for detection affects its use and is time-consuming and labor-intensive.

[0004] In order to solve the above problems, the utility model provides a double-toothed ring guide for GIL pipeline CT detection, including an annular guide, on which a ray source and a detection plate are slidably provided, and the ray source and the detection plate are relatively arranged along the radial direction of the annular guide; the annular guide is composed of two semi-annular guides, and the two semi-annular guides can be relatively arranged and fixed to form an annular structure.

[0005] The double toothed ring guide rail for GIL pipeline CT detection provided by the utility model also has the following technical features:

[0006] It also includes a gear ring assembly, which is fixed to the end face of the annular guide rail. The ray source and the detection plate are slidably installed on the annular guide rail through a slide plate. The slide plate is provided with a driving gear, which meshes with the gear ring assembly to make the slide plate slide along the annular guide rail.

[0007] The gear ring assembly is composed of two half gear rings, and the two half gear rings can be arranged opposite to each other and fixed to form a ring structure.

[0008] The semi-ring guide rail is fixed to the end surface of the semi-toothed ring, and a butt joint notch is formed at the end of the semi-ring guide rail and the semi-toothed ring.

[0009] The ends of the semi-ring guide rail and the semi-gear ring are jointly provided with a plurality of threaded holes along their circumferential direction, and bolts are arranged in the threaded holes.

[0010] Reinforcement linings are fixed to both half gear rings by bolts.

[0011] The utility model has the following beneficial effects: the annular guide rail is divided into two semi-annular guide rails for assembly and disassembly, which is convenient for the device to be removed from or enter the working space between the GIL pipelines, thereby realizing rapid assembly or disassembly of the device, and is flexible and convenient to use, suitable for defect detection of GIL pipelines in service on site, thereby improving on-site operation efficiency; at the same time, it can ensure the smooth relative movement of the ray source and the detection plate, does not affect the imaging accuracy, and can reduce the weight of the entire device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the utility model;

[0013] Figure 2 It is a schematic diagram of the structure of a single half-ring guide rail and a half-gear ring;

[0014] Figure 3 It is a schematic diagram of the structure of two half-ring guide rails and half gear ring. 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 double-toothed ring guide for GIL pipeline CT detection of the utility model includes an annular guide 10, on which a ray source 21 and a detection plate 22 are slidably provided, and the ray source 21 and the detection plate 22 are relatively arranged along the radial direction of the annular guide 10; the annular guide 10 is composed of two semi-annular guides 23, and the two semi-annular guides 23 can be relatively arranged and fixed to form an annular structure.

[0017] The utility model divides the annular guide rail 10 into two semi-annular guide rails 23 for assembly and disassembly, which is convenient for the device to be removed from or enter the working space between the GIL pipes 13, thereby realizing rapid assembly or disassembly of the device. The utility model is flexible and convenient to use, and is suitable for defect detection of the GIL pipes 13 in service on site, thereby improving on-site operation efficiency. At the same time, the utility model can ensure the smooth relative movement of the ray source 21 and the detection plate 22, does not affect the imaging accuracy, and can reduce the weight of the entire device.

[0018] The annular guide rail 10 is arranged outside the GIL pipe 13 , and a fixing device having a supporting function is provided on the annular guide rail 10 .

[0019] The ray source 21 and the detection plate 22 may be arranged on one side or both sides of the annular guide rail 10 according to actual applications.

[0020] Preferably, it also includes a gear ring assembly 24, which is fixed to the end face of the annular guide rail 10. The radiation source 21 and the detection plate 22 are slidably installed on the annular guide rail 10 through a slide plate 25. The slide plate 25 is provided with a driving gear 26, which meshes with the gear ring assembly 24 to make the slide plate 25 slide along the annular guide rail 10.

[0021] The driving gear 26 is driven to rotate by a driving motor, and the driving motor is disposed on the slide plate 25 .

[0022] Preferably, the gear ring assembly 24 is composed of two half gear rings 27, and the two half gear rings 27 can be arranged opposite to each other and fixed to form a ring structure.

[0023] In the utility model, the annular guide rail 10 is divided into two semi-annular guide rails 23, and the gear ring assembly 24 is divided into two semi-gear rings 27 for assembly and disassembly, so as to realize the rapid assembly or disassembly of the device.

[0024] Preferably, the half-ring guide rail 23 is fixed to the end surface of the half-toothed ring 27, and a docking notch 28 is formed at the ends of the half-ring guide rail 23 and the half-toothed ring 27, so that the fixation between the two half-ring guide rails 23 and the two half-toothed rings 27 is more compact and stable.

[0025] Among them, the corresponding central angles of the semi-ring guide rail 23 and the semi-toothed ring 27 are both 180°, and the two are rotated and fixed alternately at a certain angle, so as to form a docking notch 28 at their common end; the angle is set according to the number of bolts set at the docking notch 28, preferably 1°-10°.

[0026] Preferably, the ends of the semi-ring guide rail 23 and the semi-gear ring 27 are provided with a plurality of threaded holes 29 along their circumferences, and bolts are provided in the threaded holes 29 .

[0027] Preferably, a reinforcement lining plate 30 is fixed to each of the two half gear rings 27 by bolts.

[0028] During assembly, the utility model first fixes the two semi-ring guide rails 23 and the two semi-toothed rings 27 through the threaded holes 29 and the corresponding bolts to form a ring structure, and then fixes the ring guide rail 10 and the toothed ring assembly 24 on the reinforcement lining plate 30 through the corresponding bolts, thereby fixing the CT detection device; during disassembly, first remove the bolts corresponding to the threaded holes 29 to separate the two semi-ring guide rails 23 and the two semi-toothed rings 27, then remove the corresponding bolts on the reinforcement lining plate 30, and remove the two semi-ring guide rails 23 and the two semi-toothed rings 27 from the reinforcement lining plate 30, thereby facilitating the device to be removed from or enter the working space between the GIL pipelines 13, thereby realizing rapid assembly or disassembly of the CT detection device and improving on-site operation efficiency.

[0029] Of course, the reinforcement lining plate 30 can also be fixed on the two semi-ring guide rails 23 by corresponding bolts.

[0030] The working principle of the utility model is as follows:

[0031] During assembly, the ray source 21 and the detection plate 22 are first installed on the corresponding semi-ring guide rail 23 and the semi-gear ring 27 through the slide plate 25, and the semi-ring guide rail 23 and the semi-gear ring 27 are placed outside the predetermined GIL pipe 13; the two semi-ring guide rails 23 and the two semi-gear rings 27 are fixed through the threaded holes 29 and the corresponding bolts to form an annular structure, and then the annular guide rail 10 and the gear ring assembly 24 are fixed on the reinforcement liner 30 through the corresponding bolts, so as to fix the CT detection device;

[0032] During disassembly, first remove the bolts corresponding to the threaded holes 29 to separate the two semi-ring guide rails 23 and the two semi-toothed rings 27, then remove the corresponding bolts on the reinforcement lining plate 30, and remove the two semi-ring guide rails 23 and the two semi-toothed rings 27 from the reinforcement lining plate 30, so as to facilitate the removal of the device from or entry into the working space between the GIL pipes 13, thereby realizing rapid assembly or disassembly of the CT detection device, being flexible and convenient to use, and being suitable for defect detection of the GIL pipes 13 in service on site, thereby improving on-site operation efficiency; at the same time, it can ensure the smooth relative movement of the ray source 21 and the detection plate 22, without affecting the imaging accuracy, and can reduce the weight of the entire device.

[0033] 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 double-toothed ring guide rail for GIL pipeline CT detection, comprising an annular guide rail (10), characterized in that: A ray source (21) and a detection plate (22) are slidably disposed on the annular guide rail (10), and the ray source (21) and the detection plate (22) are arranged opposite to each other along the radial direction of the annular guide rail (10); the annular guide rail (10) is composed of two semi-annular guide rails (23), and the two semi-annular guide rails (23) can be arranged opposite to each other and fixed to form an annular structure.

2. The double-toothed ring guide rail for GIL pipeline CT detection according to claim 1, characterized in that: It also includes a gear ring assembly (24) fixed to the end surface of the annular guide rail (10), and the radiation source (21) and the detection plate (22) are slidably mounted on the annular guide rail (10) via a slide plate (25). The slide plate (25) is provided with a driving gear (26), and the driving gear (26) is meshed with the gear ring assembly (24), so that the slide plate (25) slides along the annular guide rail (10).

3. The double-toothed ring guide rail for GIL pipeline CT detection according to claim 2, characterized in that: The gear ring assembly (24) is composed of two half gear rings (27), and the two half gear rings (27) can be arranged relatively and fixed to form a ring structure.

4. The double-toothed ring guide rail for GIL pipeline CT detection according to claim 3, characterized in that: The semi-ring guide rail (23) is fixed to the end surface of the semi-toothed ring (27), and a butt joint notch (28) is formed at the end of the semi-ring guide rail (23) and the semi-toothed ring (27).

5. The double-toothed ring guide rail for GIL pipeline CT detection according to claim 3, characterized in that: The ends of the semi-ring guide rail (23) and the semi-gear ring (27) are jointly provided with a plurality of threaded holes (29), and bolts are arranged in the threaded holes (29).

6. The double-toothed ring guide rail for GIL pipeline CT detection according to claim 3, characterized in that: A reinforcement lining plate (30) is fixed to each of the two half gear rings (27) by means of bolts.

Images