Petroleum pipeline weld joint flaw detection device

Abstract

The utility model discloses a petroleum pipeline welding seam flaw detection device, which relates to the field of nondestructive testing equipment, and adopts the technical scheme that the petroleum pipeline welding seam flaw detection device comprises a handheld frame with a U-shaped section, two traveling wheels are rotationally arranged at the opening end of the handheld frame, and the two traveling wheels are respectively positioned at the two end parts of the handheld frame; one end of the closed end of the handheld frame is rotatably provided with a chain, the other end is fixedly provided with a hook, one end of the chain is rotatably connected with the handheld frame, and the other end is connected with an adjuster which is detachably connected with the hook of the handheld frame; a detection probe is arranged in the middle of one side of the handheld frame. The pipeline inspection device has the beneficial effects that the structure is simple, the use is convenient, pipelines with different pipe diameters can be inspected, the stability in the detection process is improved, the detection precision is improved, the detection efficiency is improved, and the human input in the detection process is reduced.

Description

Technical Field

[0001] The utility model relates to the field of nondestructive testing equipment, in particular to a petroleum pipeline weld flaw detection device. Background Art

[0002] Pipelines are devices that continuously transport the energy (oil, water, etc.) we need for our daily lives or work. They are connected by pipes, pipe connectors, and valves. Welding is usually used to connect the turning points of the pipeline or the connection between two sections of the pipeline.

[0003] The quality of the weld has an important impact on the service life of the welded parts. Therefore, the defects in the weld should be discovered in time and effective measures should be taken to remove them. At present, the main method for inspecting weld defects is non-destructive testing.

[0004] Flaw detection refers to the detection of cracks or defects inside metal materials or parts. Generally, magnetic, ray, ultrasonic and other instruments are used. Commonly used flaw detection methods include X-ray flaw detection, ultrasonic flaw detection, magnetic particle flaw detection, penetrant flaw detection, eddy current flaw detection, gamma ray flaw detection and other methods.

[0005] When operating, the detection probe needs to slide along the extension direction of the weld. For pipelines, the weld is generally a circumferential circle, so it is necessary to repeatedly circle the pipeline along the weld for flaw detection. This operation is currently completed by staff holding a probe, which is difficult to operate. It is impossible to complete the circle continuously, and it is difficult to obtain a completely overlapping repeated route, resulting in low detection efficiency and high difficulty in locating and judging defects. Utility Model Content

[0006] In view of the above technical problems, the utility model provides a petroleum pipeline weld flaw detection device.

[0007] The technical solution is as follows: it comprises a hand-held frame with a "U"-shaped cross section, wherein two running wheels are rotatably arranged at the open end of the hand-held frame, and the two running wheels are respectively located at two ends of the hand-held frame;

[0008] A chain is rotatably arranged at one end of the closed end of the hand-held frame, and a hook is fixedly arranged at the other end; one end of the chain is rotatably connected to the hand-held frame, and the other end is connected to the regulator; the regulator is detachably connected to the hook of the hand-held frame;

[0009] A detection probe is arranged in the middle of one side of the handheld frame.

[0010] Preferably, the adjuster comprises two side plates arranged in parallel, the two side plates are fixedly connected by a fixing plate, a rotating shaft is rotatably arranged at one end of the two side plates, a sprocket is fixedly arranged in the middle of the rotating shaft, and the sprocket is engaged with the chain.

[0011] Preferably, a ratchet is coaxially fixedly disposed on both sides of the sprocket;

[0012] An inclined guide groove is provided in the middle of the two side plates, a limit plate is slidably arranged in the guide groove, and one end of the limit plate is matched with a tooth groove of the ratchet wheel.

[0013] Preferably, a baffle is fixedly arranged at the middle of one side of the fixing plate away from the rotating shaft, and a through slot is provided in the middle of the baffle;

[0014] The limiting plate is fixedly provided with an insertion rod on one side of the baffle plate, and the insertion rod slides in the slot.

[0015] Preferably, a spring is sleeved on the outer side of the insertion rod, and two ends of the spring are respectively fixedly connected to the baffle plate and the limit plate.

[0016] Preferably, a mounting plate is fixedly provided on one side of the two side plates away from the rotating shaft respectively, and a hanging rod is fixedly provided on the two mounting plates, and the hanging rod is detachably connected to the hook.

[0017] Preferably, two inclined vertical poles are fixedly provided on the plate body of the limiting plate, and a pull rod is fixedly provided on one end of the two vertical poles.

[0018] Preferably, a guide plate is fixedly provided on one side of each of the two side plates close to the rotating shaft, and a guide rod is fixedly provided on the two guide plates, and the guide rod is in contact with the chain.

[0019] Preferably, a handle is fixedly provided at each end of the closed end of the handheld frame.

[0020] The technical solution provided by the embodiment of the utility model has the following beneficial effects: simple structure, easy use, capable of inspecting pipes of different diameters, improving the stability during the inspection process, improving the inspection accuracy, improving the inspection efficiency, and reducing the manpower input during the inspection process. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the use status of an embodiment of the utility model.

[0022] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the utility model.

[0023] Figure 3 The figure is a schematic diagram of the overall structure of the regulator according to an embodiment of the utility model.

[0024] Figure 4 It is a partial structural schematic diagram of a regulator according to an embodiment of the utility model.

[0025] Among them, the figure markings are: 1. hand-held frame; 2. walking wheel; 3. chain; 4. hook; 5. detection probe; 6. adjuster; 7. side plate; 8. fixing plate; 9. rotating shaft; 10. sprocket; 11. ratchet; 12. guide groove; 13. limit plate; 14. baffle; 15. plug rod; 16. spring; 17. mounting plate; 18. hanging rod; 19. vertical rod; 20. pull rod; 21. guide plate; 22. guide rod; 23. handle; 24. pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. Of course, the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0028] In the description of the invention of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the invention of the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the invention of the utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the invention of the present utility model, unless otherwise specified, "multiple" means two or more.

[0029] In the description of the invention of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention of the utility model can be understood according to specific circumstances.

[0030] Example 1

[0031] See also Figures 1 to 4The utility model provides a petroleum pipeline weld flaw detection device, comprising a handheld frame 1 with a "U"-shaped cross section, two running wheels 2 are rotatably arranged at the open end of the handheld frame 1, and the two running wheels 2 are respectively located at the two ends of the handheld frame 1;

[0032] A chain 3 is rotatably arranged at one end of the closed end of the hand-held frame 1, and a hook 4 is fixedly arranged at the other end. One end of the chain 3 is rotatably connected to the hand-held frame 1, and one of the links of the chain 3 is detachably connected to the hook 4 of the hand-held frame 1;

[0033] A detection probe 5 is arranged in the middle of one side of the handheld frame 1 .

[0034] A handle 23 is fixedly disposed at each end of the closed end of the hand-held frame 1 .

[0035] The handle 23 facilitates the operator to move the handheld frame 1, thereby improving the convenience of using the device.

[0036] When the utility model is used, when it is necessary to perform flaw detection on the pipeline, the handheld frame 1 is placed on the surface of the pipeline 24, the walking wheel 2 is in contact with the surface of the pipeline 24, the chain 3 bypasses the pipeline 24, and a suitable chain link is selected according to the diameter of the pipeline 24 to connect with the hook 4, so that pipelines with different diameters can be inspected, thereby improving the use range of the device. The handheld frame 1 is firmly placed on the outside of the pipeline 24 through the chain 3, and the position of the detection probe 5 is adjusted so that the detection probe 5 can inspect the weld. The operator realizes flaw detection on the pipeline weld by rotating the handheld frame 1.

[0037] Example 2

[0038] On the basis of embodiment 1, the other end is connected to the regulator 6, and the regulator 6 is detachably connected to the hook 4 of the handheld frame 1;

[0039] The regulator 6 includes two parallel side plates 7, which are fixedly connected by a fixing plate 8. A rotating shaft 9 is rotatably arranged at one end of the two side plates 7, and a sprocket 10 is fixedly arranged in the middle of the rotating shaft 9, and the sprocket 10 is meshed with the chain 3.

[0040] The sprocket 10 is preferably a double-row sprocket 10, and the chain 3 is correspondingly a double-row chain 3. The width of the double-row chain 3 is wider, which can increase the contact area between the chain 3 and the pipe 24, and improve the top stability of the device when in use.

[0041] A mounting plate 17 is fixedly disposed on one side of the two side plates 7 away from the rotating shaft 9 , and a hanging rod 18 is fixedly disposed on the two mounting plates 17 . The hanging rod 18 is detachably connected to the hook 4 .

[0042] A guide plate 21 is fixedly disposed on one side of the two side plates 7 close to the rotating shaft 9 , and a guide rod 22 is fixedly disposed on the two guide plates 21 , and the guide rod 22 is in contact with the chain 3 .

[0043] The guide rod 22 is arranged on the outside of the chain 3 , and the guide rod 22 can ensure that the chain 3 is always meshed with the sprocket 10 .

[0044] At the same time, it can limit the chain 3. After the operator pulls the chain 3 to tighten it, without applying external force, the guide rod 22 can prevent the chain 3 from moving, and can always keep the handheld frame 1 in contact with the surface of the pipe 24.

[0045] When the device is used, after the chain 3 is passed around the pipe 24, the hanging rod 18 is first connected to the hook 4, and then the operator pulls the movable end of the chain 3 to tighten the chain 3, so that the surface of the chain 3 is in contact with the pipe 24, and the hand-held frame 1 is firmly placed on the outside of the pipe 24 through the chain 3. The position of the detection probe 5 is adjusted so that the detection probe 5 can inspect the weld. The operator realizes flaw detection of the pipe weld by rotating the hand-held frame 1.

[0046] Example 3

[0047] On the basis of Embodiment 2, a ratchet 11 is coaxially fixedly disposed on both sides of the sprocket 10;

[0048] An inclined guide groove 12 is formed in the middle of the two side plates 7 , and a limit plate 13 is slidably arranged in the guide groove 12 . One end of the limit plate 13 is matched with a tooth groove of the ratchet wheel 11 .

[0049] The limiting plate 13 can limit the ratchet 11 to prevent the chain 3 from moving, and can always keep the hand-held frame 1 in contact with the surface of the pipe 24.

[0050] A baffle plate 14 is fixedly disposed in the middle of one side of the fixed plate 8 away from the rotating shaft 9, and a through slot is provided in the middle of the baffle plate 14;

[0051] An insert rod 15 is fixedly arranged on one side of the limiting plate 13 facing the baffle plate 14 , and the insert rod 15 slides in the slot.

[0052] A spring 16 is sleeved on the outer side of the insertion rod 15 , and two ends of the spring 16 are fixedly connected to the baffle plate 14 and the limit plate 13 respectively.

[0053] Two inclined vertical rods 19 are fixedly arranged on the plate body of the limiting plate 13, and a pull rod 20 is fixedly arranged at one end of the two vertical rods 19. The outer side of the pull rod 20 is covered with a rubber sleeve.

[0054] When it is necessary to remove the hand-held frame 1, the operator first pulls the pull rod 20 to make the limit plate 13 cancel the limit on the ratchet 11, and the operator rotates the shaft 9 in the opposite direction to loosen the chain 3 to facilitate the operator to remove the adjuster 6, and then removes the adjuster 6 from the hook 4 to complete the separation of the hand-held frame 1 and the pipe 24.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A petroleum pipeline weld flaw detection device, characterized in that: It comprises a handheld frame (1) having a U-shaped cross section, wherein two running wheels (2) are rotatably arranged at an open end of the handheld frame (1), and the two running wheels (2) are respectively located at two ends of the handheld frame (1); A chain (3) is rotatably arranged at one end of the closed end of the handheld frame (1), and a hook (4) is fixedly arranged at the other end; one end of the chain (3) is rotatably connected to the handheld frame (1), and the other end is connected to an adjuster (6); the adjuster (6) is detachably connected to the hook (4) of the handheld frame (1); A detection probe (5) is provided in the middle of one side of the handheld frame (1).

2. The oil pipeline weld flaw detection device according to claim 1 is characterized in that: The regulator (6) comprises two side plates (7) arranged in parallel, the two side plates (7) being fixedly connected via a fixing plate (8), a rotating shaft (9) being rotatably arranged at one end of the two side plates (7), a sprocket (10) being fixedly arranged in the middle of the rotating shaft (9), and the sprocket (10) being meshed with the chain (3).

3. The oil pipeline weld flaw detection device according to claim 2 is characterized in that: A ratchet wheel (11) is coaxially fixedly disposed on each side of the sprocket wheel (10); An inclined guide groove (12) is provided in the middle of the two side plates (7), a limit plate (13) is slidably arranged in the guide groove (12), and one end of the limit plate (13) is matched with a tooth groove of the ratchet wheel (11).

4. The oil pipeline weld flaw detection device according to claim 3 is characterized in that: A baffle (14) is fixedly disposed in the middle of one side of the fixed plate (8) away from the rotating shaft (9), and a slot penetrating therethrough is provided in the middle of the baffle (14); An insertion rod (15) is fixedly arranged on one side of the limiting plate (13) towards the baffle plate (14), and the insertion rod (15) slides in the slot.

5. The oil pipeline weld flaw detection device according to claim 4 is characterized in that: A spring (16) is sleeved on the outer side of the insertion rod (15), and two ends of the spring (16) are respectively fixedly connected to the baffle plate (14) and the limit plate (13).

6. The oil pipeline weld flaw detection device according to claim 2, characterized in that: A mounting plate (17) is fixedly disposed on each side of the two side plates (7) away from the rotating shaft (9), and a hanging rod (18) is fixedly disposed on the two mounting plates (17). The hanging rod (18) is detachably connected to the hook (4).

7. The oil pipeline weld flaw detection device according to claim 3 is characterized in that: Two inclined vertical rods (19) are fixedly arranged on the plate body of the limiting plate (13), and a pull rod (20) is fixedly arranged at one end of the two vertical rods (19).

8. The oil pipeline weld flaw detection device according to claim 2, characterized in that: A guide plate (21) is fixedly disposed on each side of the two side plates (7) close to the rotating shaft (9), and a guide rod (22) is fixedly disposed on the two guide plates (21), and the guide rod (22) is in contact with the chain (3).

9. The oil pipeline weld flaw detection device according to claim 3, characterized in that: A handle (23) is fixedly disposed at each end of the closed end of the handheld frame (1).

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