Mounting device for an adjustable pipeline corrosion monitoring sensor

Abstract

This utility model discloses a fixing device for an adjustable pipeline corrosion monitoring sensor, belonging to the field of pipeline monitoring. It includes a fixing mechanism with a connecting mechanism installed on its left side. The fixing mechanism includes a first snap-fit ​​plate, with an installation groove in the middle of its inner end. An extension block is fixedly installed above the upper end of the first snap-fit ​​plate, with a movable hole in its middle. A movable rod is movably installed inside the extension block through the movable hole, and a base is fixedly installed at the lower end of the movable rod. The key technical point is that the second snap-fit ​​plate and the first snap-fit ​​plate have an arc-shaped structure that matches the outer contour of the pipeline, allowing them to fit tightly against the pipeline surface. The inner ends of the second snap-fit ​​plate and the first snap-fit ​​plate have an internal groove for installing the fiber optic grating portion of the pipeline corrosion monitoring sensor, ensuring good contact between the fiber optic grating and the pipeline surface for accurate sensing of pipeline strain changes.

Description

Technical Field

[0001] This utility model relates to the field of pipeline monitoring, and in particular to a fixing device for an adjustable pipeline monitoring corrosion sensor. Background Technology

[0002] In industrial production, a large number of pipelines need to be covered with insulation layers to achieve energy saving and process insulation. These insulated pipelines are in complex working environments for a long time and are prone to corrosion. Pipeline corrosion not only reduces the service life of the pipeline, but may also lead to media leakage, causing serious consequences such as safety accidents and environmental pollution, resulting in huge economic losses to enterprises. At present, the commonly used methods for monitoring corrosion of insulated pipelines in engineering are: 1. Inductive corrosion probe monitoring method, which is not in situ monitoring; 2. Online thickness measurement to monitor the remaining wall thickness. However, these methods have obvious limitations. Inductive corrosion probe monitoring and online thickness measurement are both local area monitoring methods, which can only obtain corrosion information at the monitoring point and cannot comprehensively reflect the corrosion status of the entire pipeline. Due to the non-uniform and local characteristics of pipeline corrosion, these local monitoring methods may miss severely corroded areas, resulting in inaccurate monitoring results and failing to provide a reliable basis for the safe operation of pipelines. In order to overcome the limitations of the above-mentioned local monitoring methods, fiber optic sensor technology has been introduced into pipeline corrosion monitoring. Fiber optic sensors have the advantages of being able to achieve in situ monitoring and long-term monitoring, and can acquire pipeline corrosion information in real time and continuously, comprehensively reflecting the corrosion status of the pipeline.

[0003] While existing fiber optic technology is relatively mature, certain problems still exist in monitoring high-temperature pipelines with insulation layers. Corrosion under the insulation layer most commonly occurs between 50°C and 175°C. In environments below 80°C, fiber optic sensors are typically fixed with common adhesives. However, when the ambient temperature is between 80-175°C, the adhesive softens due to the high temperature, causing the connection between the fiber optic sensor and the pipeline surface to loosen. This affects the monitoring accuracy and effectiveness, failing to meet the needs of high-temperature pipeline corrosion monitoring with insulation layers. Therefore, developing a sensor that can be stably and reliably fixed to the surface of pipelines with insulation layers in environments between 80-175°C to accurately monitor pipeline corrosion has become an urgent problem to be solved in the field of pipeline corrosion monitoring. Utility Model Content

[0004] To overcome the shortcomings of the existing technology, the purpose of this utility model is to provide an adjustable fixing device for a pipeline corrosion monitoring sensor. The second and first buckle plates are arc-shaped and match the outer contour of the pipeline, so that they can fit tightly against the pipeline surface. The inner ends of the second and first buckle plates are provided with mounting slots for installing the fiber optic grating part of the pipeline corrosion monitoring sensor, ensuring that the fiber optic grating can make good contact with the pipeline surface so as to accurately sense the strain changes of the pipeline.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0006] A mounting device for an adjustable pipeline corrosion monitoring sensor includes a mounting mechanism, wherein a connecting mechanism is mounted on the left side of the mounting mechanism;

[0007] The fixing mechanism includes a snap-fit ​​plate, with an installation groove in the middle of the inner end of the snap-fit ​​plate. An extension block is fixedly installed above the upper end of the snap-fit ​​plate, with a movable hole in the middle of the extension block. A movable rod is movably installed inside the extension block through the movable hole, and a base is fixedly installed at the lower end of the movable rod. By setting the base, the device is directly connected to the pipeline by a welded structure. Then, the fiber optic grating part of the sensor used for pipeline corrosion monitoring is buried inside the installation groove, so that the sensor head can be tightly attached to the pipeline surface. The welded connection structure makes the connection between the device and the pipeline firm and prevents it from falling off.

[0008] Furthermore, the connecting mechanism includes a second snap-fit ​​plate, with an internal groove in the middle of the inner end of the second snap-fit ​​plate, and an extension block two fixedly provided on the side of the front end of the second snap-fit ​​plate. The extension block two has a connecting hole in the middle. The connection hole allows the second snap-fit ​​plate to maintain a movable structure during installation, thereby facilitating the opening of the second snap-fit ​​plate for maintenance of the internal fiber optic grating without disassembling the device.

[0009] Furthermore, the first buckle plate has an arc-shaped structure, and the movable rod has a T-shaped structure. The arc-shaped buckle plate fits tightly with the pipe, which is beneficial to the effective contact between the fiber optic grating and the pipe.

[0010] Furthermore, the second extension block and the first extension block have the same structure.

[0011] Furthermore, the second buckle plate is fixedly connected to the first buckle plate, and the second buckle plate and the first buckle plate have the same structure.

[0012] Furthermore, the built-in slot and the mounting slot have the same structure.

[0013] Furthermore, the connecting hole and the movable rod are adapted to each other, and the second buckle plate is movably installed in front of the movable rod through the second extension block.

[0014] Furthermore, the inner end of the base has an arc-shaped structure, and the buckle plate is movably mounted in front of the movable rod via an extension block.

[0015] In summary, this utility model has the following beneficial effects:

[0016] 1. The two clip plates are arc-shaped and match the outer contour of the pipe, so they can fit tightly to the pipe surface. The inner end of the clip plate and the clip plate is provided with a mounting box with a built-in groove for installing the fiber optic grating part of the sensor for monitoring pipe corrosion, so as to ensure that the fiber optic grating can make good contact with the pipe surface and accurately sense the strain changes of the pipe.

[0017] 2. The extension block 2 and extension block 1 are nested on the movable rod in sequence for fixation. The base is connected to the buckle plate 2 and buckle plate 1. The entire fixing device is then fixed to the pipe surface by welding to ensure the firmness and stability of the fixation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure in this embodiment;

[0019] Figure 2 This is a three-dimensional structural diagram of the fixing mechanism in this embodiment;

[0020] Figure 3 This is a three-dimensional structural diagram of the connecting mechanism in this embodiment;

[0021] Figure 4 This is a three-dimensional structural diagram of the movable rod in this embodiment.

[0022] In the diagram, 1 is the fixing mechanism; 101 is the buckle plate 1; 102 is the mounting slot; and 103 is the extension block 1.

[0023] 104. Movable hole; 105. Movable rod; 106. Base; 2. Connecting mechanism; 201. Buckle plate two; 202. Built-in groove; 203. Extension block two; 204. Connecting hole. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] Identical parts are indicated by the same reference numerals. It should be noted that the terms "front," "rear," "left," "right," "up," and "down" used in the following description refer to directions in the accompanying drawings, while the terms "bottom surface," "top surface," "inner," and "outer" refer to directions toward or away from the geometric center of a specific part, respectively.

[0026] Reference Figure 1-4As shown, this is a fixing device for an adjustable pipeline monitoring corrosion sensor in a preferred embodiment of the present invention, including a fixing mechanism 1, and a connecting mechanism 2 installed on the left side of the fixing mechanism 1.

[0027] The fixing mechanism 1 includes a snap-fit ​​plate 101. A mounting groove 102 is provided in the middle of the inner end of the snap-fit ​​plate 101. An extension block 103 is fixedly installed above the upper end of the snap-fit ​​plate 101. A movable hole 104 is provided in the middle of the extension block 103. A movable rod 105 is movably installed inside the extension block 103 through the movable hole 104. A base 106 is fixedly installed at the lower end of the movable rod 105. By setting the base 106, the device is directly connected to the pipeline by a welded structure. Then, the fiber optic grating part of the sensor used for pipeline corrosion monitoring is buried inside the mounting groove 102, so that the sensor head is tightly attached to the pipeline surface. The welded connection structure makes the connection between the device and the pipeline firm and prevents it from falling off.

[0028] The connecting mechanism 2 includes a second snap-fit ​​plate 201. The inner end of the second snap-fit ​​plate 201 has a built-in groove 202. An extension block 203 is fixedly installed on the side of the front end of the second snap-fit ​​plate 201. A connecting hole 204 is provided in the middle of the extension block 203, so that the second snap-fit ​​plate 201 can maintain a movable structure when installed. This makes it easy to open the second snap-fit ​​plate 201 for maintenance of the internal fiber optic grating without disassembling the device.

[0029] The buckle plate 101 has an arc-shaped structure, and the movable rod 105 has a T-shaped structure. The arc-shaped buckle plate 101 fits tightly with the pipe, which is beneficial to the effective contact between the fiber optic grating and the pipe.

[0030] The second snap-fit ​​plate 201 is fixedly connected to the first snap-fit ​​plate 101. The second snap-fit ​​plate 201 and the first snap-fit ​​plate 101 have the same structure. The second snap-fit ​​plate 201 and the first snap-fit ​​plate 101 with the same structure are snapped into the pipe from both sides, just enough to hold the pipe in place. The inner ends of the second snap-fit ​​plate 201 and the first snap-fit ​​plate 101 are attached to the outer wall of the pipe, and the fiber optic grating part installed in the middle of the inner end of the second snap-fit ​​plate 201 and the first snap-fit ​​plate 101 is fully attached to the pipe, ensuring that the fiber optic grating can make good contact with the pipe surface, so as to accurately sense the strain changes of the pipe.

[0031] The built-in slot 202 and the mounting slot 102 have the same structure, and the built-in slot 202 and the mounting slot 102 with the same structure are used to install the complete fiber Bragg grating.

[0032] Extension block 203 and extension block 103 have the same structure. The connecting hole 204 and the movable rod 105 are compatible. The buckle plate 201 is movably installed in front of the movable rod 105 through extension block 203. Buckle plate 101, buckle plate 201 and extension block 103 and movable rod 105 form a movable connection structure. After the device is welded to the pipe by the base 106, it can be adjusted without disassembling the device, making the device more versatile.

[0033] The inner end of the base 106 has an arc-shaped structure. The buckle plate 101 is movably installed in front of the movable rod 105 through the extension block 103. The arc-shaped structure of the inner end of the base 106 facilitates fitting with the pipe and makes the device and the pipe more secure after welding.

[0034] Specific implementation process: This utility model is a fixing device for an adjustable pipeline corrosion monitoring sensor. First, two arc-shaped snap-fit ​​plates, 101 and 201, are set up. These two plates are connected by an extension block 103, an extension block 203, and a movable rod 105. Then, a base 106 with an arc-shaped inner end is set at the lower end of the movable rod 105. The base 106 is fitted against the outer wall of the pipeline, and the base 106 is fixed to the pipeline using welding technology. Before fixing, the fiber optic grating portion of the sensor used for pipeline corrosion monitoring is embedded inside the mounting groove 102 and the built-in groove 202. Then, snap-fit ​​plates 201 and 101, with the same structure, are snapped into the pipeline from both sides, securing the pipeline. The inner ends of snap-fit ​​plates 201 and 101 fit against the outer wall of the pipeline, thus securing the sensor installed on snap-fit ​​plates 201 and 101. The fiber grating section in the middle of the inner end fits perfectly into the pipe, ensuring good contact between the fiber grating and the pipe surface, so as to accurately sense the strain changes of the pipe. The various components of the device complement each other, thereby adapting to pipes of different diameters.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustable fixture for a pipeline monitoring corrosion sensor, characterized by: It includes a fixing mechanism (1), and a connecting mechanism (2) is installed on the left side of the fixing mechanism (1); The fixing mechanism (1) includes a buckle plate (101), with an installation groove (102) in the middle of the inner end of the buckle plate (101), an extension block (103) fixedly installed above the upper end of the buckle plate (101), an movable hole (104) in the middle of the extension block (103), a movable rod (105) movably installed inside the extension block (103) through the movable hole (104), and a base (106) fixedly installed at the lower end of the movable rod (105).

2. An adjustable pipe monitoring corrosion sensor fixing device according to claim 1, characterized in that: The connecting mechanism (2) includes a second buckle plate (201), with an internal groove (202) in the middle of the inner end of the second buckle plate (201), and an extension block (203) fixedly provided on the side of the front end of the second buckle plate (201), with a connecting hole (204) in the middle of the extension block (203).

3. An adjustable pipe monitoring corrosion sensor fixture according to claim 1, wherein: The buckle plate (101) has an arc-shaped structure, and the movable rod (105) has a T-shaped structure.

4. The fixing device for an adjustable pipeline monitoring corrosion sensor according to claim 2, characterized in that: The second extension block (203) and the first extension block (103) have the same structure.

5. An adjustable pipe monitoring corrosion sensor fixture according to claim 2, wherein: The second buckle plate (201) is fixedly connected to the first buckle plate (101), and the second buckle plate (201) and the first buckle plate (101) have the same structure.

6. An adjustable pipe monitoring corrosion sensor fixture according to claim 2, wherein: The built-in slot (202) and the mounting slot (102) have the same structure.

7. An adjustable pipe monitoring corrosion sensor fixture according to claim 2, wherein: The connecting hole (204) and the movable rod (105) are adapted to each other, and the second buckle plate (201) is movably installed in front of the movable rod (105) through the second extension block (203).

8. An adjustable pipe monitoring corrosion sensor fixture according to claim 4, wherein: The inner end of the base (106) is an arc-shaped structure, and the buckle plate (101) is movably installed in front of the movable rod (105) through the extension block (103).

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