Portable nondestructive testing device for pipeline detection

Abstract

The utility model relates to the technical field of pipeline detection, and discloses a portable nondestructive testing device for pipeline detection, which comprises a shell I and a shell II, accommodating shells are fixed on the left side and the right side of the shell I, cavities are formed in the two accommodating shells, fixing rods are fixedly connected in the two cavities, and the fixing rods are fixedly connected with the shell II. The two fixing rods are sleeved with first springs correspondingly, pulling plates are slidably connected to the outer portions of the two fixing rods correspondingly, and clamping assemblies used for connecting the first shell and the second shell are fixedly connected to the left side and the right side of the second shell correspondingly. According to the utility model, the pulling plate can move under the reset acting force of the spring I, and then the pulling plate can be clamped with the interior of the clamping hole, so that the clamping plate can be fixed, and the shell I and the shell II can be mounted by fixing the clamping plate; and then the device is convenient to carry through the detachable installation placement.

Description

Technical Field

[0001] This utility model relates to the field of pipeline inspection technology, and in particular to a portable non-destructive testing device for pipeline inspection. Background Technology

[0002] Non-destructive testing (NDT) equipment for pipeline inspection is commonly used to inspect pipelines transporting crude oil, refined oil, and chemical raw materials. It can detect internal defects such as corrosion, cracks, and pinholes, ensuring the safe operation of pipelines under harsh conditions such as high pressure, high temperature, and strong corrosion. This helps prevent accidents such as fires, explosions, and environmental pollution caused by leaks. It can also inspect steam pipelines in thermal power plants and coolant pipelines in nuclear power plants, promptly detecting damage caused by thermal stress, creep, and other factors. This ensures the stability and reliability of power transmission systems and prevents power outages caused by pipeline failures.

[0003] However, some existing portable pipeline inspection non-destructive testing devices are usually fixed to the outside of the pipeline during use, allowing the device to inspect the pipeline. However, they do not take into account that the large size of the device makes it inconvenient to carry.

[0004] Therefore, a portable non-destructive testing device for pipeline inspection is proposed to address the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a portable non-destructive testing device for pipeline inspection, which aims to improve the problem that the existing devices cannot be disassembled, making them inconvenient to carry.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A portable pipeline inspection non-destructive testing device includes a housing 1 and a housing 2. The housing 1 has receiving shells fixed on both its left and right sides. Each of the two receiving shells has a cavity inside. Each of the two cavities has a fixing rod fixedly connected inside. Each of the two fixing rods has a spring 1 sleeved on its outside. Each of the two fixing rods has a pull plate slidably connected to its outside. The housing 2 has locking components fixedly connected on both its left and right sides for connecting the housing 1 and the housing 2.

[0008] As a further description of the above technical solution:

[0009] The engaging assembly includes two engaging plates, with adjacent sides of the two engaging plates fixedly connected to the left and right sides of the housing 2, respectively, and engaging holes are provided on the top of the engaging plates;

[0010] As a further description of the above technical solution:

[0011] Both the first and second housings have receiving grooves on their front and rear sides. Multiple dampers are fixedly connected to the inner wall of the receiving grooves. Springs are fitted on the outside of each of the multiple dampers. Limiting plates are fixedly connected to the outside of the multiple dampers. Brushes are fixedly connected to the outside of the limiting plates.

[0012] As a further description of the above technical solution:

[0013] One end of the spring is fixedly connected to the inner wall of the cavity, and the other end of the spring is fixedly connected to the outside of the pull plate.

[0014] As a further description of the above technical solution:

[0015] The pull plate is slidably connected to the inside of the cavity, and the bottom of the pull plate engages with the inside of the engaging hole;

[0016] As a further description of the above technical solution:

[0017] One end of the second spring is fixedly connected to the inner wall of the receiving groove, and the other end of the second spring is fixedly connected to the outside of the limiting plate.

[0018] As a further description of the above technical solution:

[0019] The limiting plate is externally slidably connected to the inside of the receiving groove, and the brush is externally slidably connected to the inside of the receiving groove;

[0020] As a further description of the above technical solution:

[0021] Both housing one and housing two are equipped with pneumatic pumps on their exteriors, and both housing one and housing two are equipped with filter plates inside their interiors.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, by placing housing one on top of the pipe to be inspected and housing two on bottom of the pipe, the top of the locking plate will enter the interior of the housing. Then, pulling the pulling plate will cause it to slide outside the fixing rod, thereby compressing spring one and allowing the locking plate to fully enter the cavity. Then, releasing the pulling plate will cause it to move under the restoring force of spring one, and then the pulling plate will engage with the interior of the locking hole, thereby fixing the locking plate. By fixing the locking plate, housing one and housing two are installed. This disassembled installation method makes the device easy to carry.

[0024] 2. In this utility model, when both housing one and housing two are installed outside the pipe, the pipe will press down on multiple brushes, which in turn will press down on the limiting plate. The limiting plate will then press down on the spring two and the damper. Under the restoring force of the damper and spring two, the brushes will make closer contact with the outside of the pipe. At this time, the pneumatic pump will be started, and the pneumatic pump will evacuate the inside of housing one and housing two. The evacuated air will enter the inside of the pneumatic pump through the filter plate. In this way, it is possible to detect whether there are cracks or leaks in the pipe. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of a portable non-destructive testing device for pipeline inspection proposed in this utility model;

[0026] Figure 2 This is a schematic diagram of the structure of the limiting plate of a portable pipeline inspection non-destructive testing device proposed in this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of point A;

[0028] Figure 4 This is a schematic diagram of the cavity structure of a portable pipeline inspection non-destructive testing device proposed in this utility model.

[0029] Legend:

[0030] 1. Shell 1; 2. Shell 2; 3. Receiving shell; 4. Cavity; 5. Fixing rod; 6. Spring 1; 7. Pulling plate; 8. Locking plate; 9. Locking hole; 10. Pneumatic pump; 11. Filter plate; 12. Receiving groove; 13. Damper; 14. Spring 2; 15. Limiting plate; 16. Brush. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 and Figure 4This utility model provides an embodiment of a portable non-destructive testing device for pipeline inspection, comprising a housing 1 and a housing 2. Housing 3 is fixed to both sides of housing 1, thus providing support for housing 3. Each housing 3 has an interior cavity 4, and a fixing rod 5 is fixedly connected inside each cavity 4, thus fixing the fixing rod 5 inside the housing 3. A spring 6 is sleeved on the outside of each fixing rod 5, and a pulling plate 7 is slidably connected to the outside of each fixing rod 5. The fixing rod 5 limits the movement of the pulling plate 7. One end of the spring 6 is fixedly connected to the cavity. The inner wall of body 4 has the other end of spring 6 fixedly connected to the outside of pull plate 7, so that when pull plate 7 moves, spring 6 will be compressed. The outside of pull plate 7 is slidably connected to the inside of cavity 4. Both sides of housing 2 are fixedly connected with locking components for connecting housing 1 and housing 2. The locking components include two locking plates 8. The adjacent sides of the two locking plates 8 are fixedly connected to the left and right sides of housing 2 respectively. The top of the locking plate 8 is provided with a locking hole 9. The bottom of pull plate 7 is locked with the inside of the locking hole 9. By controlling the locking of pull plate 7 with locking hole 9, the fixing or disassembly of housing 1 and housing 2 can be realized.

[0033] Reference Figures 1 to 3 Both the front and rear sides of the inner sides of housing 1 and housing 2 have receiving grooves 12. Multiple dampers 13 are fixedly connected to the inner walls of the receiving grooves 12, thus providing support for the dampers 13. Springs 14 are fitted around the outside of each damper 13. Limiting plates 15 are fixedly connected to the outside of the dampers 13. When the limiting plates 15 move, they compress the dampers 13 and springs 14. One end of each spring 14 is fixedly connected to the inner wall of the receiving groove 12, and the other end is fixedly connected to the outside of the limiting plates 15. When the limiting plate 15 moves, it will compress the second spring 14. The outside of the limiting plate 15 is slidably connected to the inside of the receiving groove 12. A brush 16 is fixedly connected to the outside of the limiting plate 15. When the brush 16 is under force, it will press the limiting plate 15. The outside of the brush 16 is slidably connected to the inside of the receiving groove 12. Both the outer shell 1 and the outer shell 2 are equipped with pneumatic pumps 10. Both the outer shell 1 and the inner shell 2 are equipped with filter plates 11. Thus, the pneumatic pump 10 can draw air, and the filter plates 11 can filter the drawn air.

[0034] Working Principle: When pipeline inspection is required, housing 1 and housing 2 are separated and placed at the top and bottom of the pipeline to be inspected, respectively. At this time, attention must be paid to the relative position of the locking plate 8 and the receiving shell 3, ensuring that the top of the locking plate 8 can smoothly insert into the cavity 4 of the receiving shell 3. The operator must hold housing 1 and housing 2 with both hands, keeping their central axes perpendicularly aligned with the pipeline axis. Simultaneously, the operator pulls the left and right pull plates 7, causing them to slide along the fixed rod 5 into the cavity 4. At this time, spring 6 is compressed, generating elastic potential energy. Once the locking plate 8 is fully inserted into the cavity 4, the pull plate 7 is released. Under the reset action of spring 6, the protruding structure at the bottom of the pull plate 7 will engage with the locking hole 9 at the top of the locking plate 8, completing the mechanical locking of housing 1 and housing 2.

[0035] After the device is fixed, the brush 16 begins to contact the pipe surface. Under the weight of housing 1 and housing 2, the brush 16 is compressed and deformed, pushing the limiting plate 15 into the receiving groove 12. The limiting plate 15 compresses the spring 14 and the damper 13. Under the elastic restoring force of the spring 14 and the buffering effect of the damper 13, the brush 16 forms a uniform contact pressure with the pipe surface.

[0036] After completing mechanical fixing and contact pressure adjustment, start the pneumatic pump 10. The pneumatic pump 10 begins to draw air from inside housing 1 and housing 2, creating a localized negative pressure environment. If cracks or pores exist on the pipe surface, external air will enter the housing through the cracks and be drawn in by the pneumatic pump 10. As the airflow passes through the filter plate 11, impurities in the air are filtered out, and clean airflow enters the pneumatic pump 10. The operator needs to observe the operating parameters of the pneumatic pump 10 and record data such as airflow rate and pressure.

[0037] During continuous operation of the pneumatic pump 10, system pressure changes need to be monitored in real time. If a leak exists in the pipeline, the pneumatic pump 10 needs to continuously work to maintain negative pressure, resulting in increased current or power consumption. Simultaneously, abnormal airflow fluctuations can be detected by a flow meter. When a pressure value is detected below a set threshold or an abnormal flow pulse occurs, it indicates a leak in the pipeline.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A portable non-destructive testing device for pipeline inspection, comprising a housing one (1) and a housing two (2), characterized in that: The first housing (1) has a receiving shell (3) fixed on both the left and right sides. The two receiving shells (3) each have a cavity (4) inside. The two cavities (4) each have a fixed rod (5) fixedly connected inside. The two fixed rods (5) each have a spring (6) sleeved on the outside. The two fixed rods (5) each have a pull plate (7) slidably connected to the outside. The second housing (2) each has a locking assembly fixedly connected on both the left and right sides for connecting the first housing (1) and the second housing (2).

2. The portable non-destructive testing device for pipeline inspection according to claim 1, characterized in that: The engaging assembly includes two engaging plates (8), with the adjacent sides of the two engaging plates (8) fixedly connected to the left and right sides of the housing (2), and engaging holes (9) are provided on the top of the engaging plates (8).

3. The portable non-destructive testing device for pipeline inspection according to claim 1, characterized in that: Both the front and rear sides of the housing 1 (1) and the housing 2 (2) are provided with receiving grooves (12). Multiple dampers (13) are fixedly connected to the inner wall of the receiving groove (12). Spring 2 (14) is sleeved on the outside of the multiple dampers (13). Limiting plates (15) are fixedly connected to the outside of the multiple dampers (13). Brushes (16) are fixedly connected to the outside of the limiting plates (15).

4. The portable non-destructive testing device for pipeline inspection according to claim 1, characterized in that: One end of the spring (6) is fixedly connected to the inner wall of the cavity (4), and the other end of the spring (6) is fixedly connected to the outside of the pull plate (7).

5. A portable non-destructive testing device for pipeline inspection according to claim 2, characterized in that: The pull plate (7) is externally slidably connected to the inside of the cavity (4), and the bottom of the pull plate (7) engages with the inside of the engagement hole (9).

6. The portable non-destructive testing device for pipeline inspection according to claim 3, characterized in that: One end of the second spring (14) is fixedly connected to the inner wall of the receiving groove (12), and the other end of the second spring (14) is fixedly connected to the outside of the limiting plate (15).

7. A portable non-destructive testing device for pipeline inspection according to claim 3, characterized in that: The limiting plate (15) is externally slidably connected to the inside of the receiving groove (12), and the brush (16) is externally slidably connected to the inside of the receiving groove (12).

8. The portable non-destructive testing device for pipeline inspection according to claim 1, characterized in that: A pneumatic pump (10) is provided on the outside of both the first housing (1) and the second housing (2), and a filter plate (11) is provided inside both the first housing (1) and the second housing (2).

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