Pipeline stress detection device

Abstract

The utility model relates to the technical field of pipeline stress detection, and discloses a pipeline stress detection device which comprises a fixing ring, a fixing notch is formed in one side of the fixing ring, a detection structure is arranged in the fixing ring, the detection structure comprises five stress pieces arranged in the fixing ring, and the five stress pieces are distributed at intervals. A plurality of fixing grooves are formed in the inner circle wall face of the fixing ring, and five fixing plates are arranged in the fixing ring. Through the arrangement of the detection structure, the inner circle wall face of the fixing ring is attached to the outer circle wall face of the pipeline, the first spring is extruded and contracted, the stress pieces on one side of the fixing plate are attached to the pipeline more tightly, the stress pieces detect the stress of the pipeline, and detection data are fed back to the PLC to be recorded; according to the device, the outer circle wall surface of the pipeline is fully detected, meanwhile, a worker can conveniently install the device at the elbow of the pipeline for stress detection in a mode that the pipeline is sleeved with the fixing ring, and the detection effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline stress detection, in particular to a pipeline stress detection device. Background Art

[0002] Oil and gas pipelines are subject to pressure, temperature, and environmental factors during the transportation process, which can cause damage to the pipeline structure. Stress concentration is easily generated in the damaged parts of the pipeline. When the damage accumulates to a certain extent, the pipeline may rupture or even break, leading to safety accidents in oil and gas transportation and economic losses. Therefore, pipeline stress detection devices are needed to detect pipeline stress.

[0003] An existing pipeline stress detection device (publication number: CN221325742U) has at least the following disadvantages: although the above device detects pipeline stress through stress probes in the shell, the nine stress probes are distributed in three rows and three columns, which cannot fully detect the pipeline. In addition, stress is easily concentrated at the pipeline elbow, and the shell is difficult to install and fix at the pipeline elbow. The stress is easily concentrated at the pipeline elbow, resulting in poor detection effect of the device. For this reason, we propose this utility model. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a pipeline stress detection device.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A pipeline stress detection device includes a fixed ring, a fixed notch is opened on one side of the fixed ring, a detection structure is arranged inside the fixed ring, the detection structure includes five stress sheets arranged inside the fixed ring, the five stress sheets are distributed at intervals, a plurality of fixed grooves are opened on the inner circular wall surface of the fixed ring, five fixed plates are arranged inside the fixed ring, the stress sheets are fixed to one side of the fixed plates, the fixed plates are slidably inserted into the inside of the fixed grooves, a detection box is fixed on the top surface of the fixed ring, and a PLC controller is fixed inside the detection box.

[0007] As a further solution of the present invention, a mounting groove is provided inside the fixing groove, a first spring is fixed to a side of the fixing plate close to the fixing groove, and the first spring is slidably arranged inside the mounting groove.

[0008] As a further solution of the present invention, limiting grooves are provided on both sides of the inner wall of the fixing groove, and limiting plates are provided on both sides of the fixing plate, and the limiting plates are slidably arranged with the inner wall of the limiting groove.

[0009] As a further solution of the present invention, movable notches are provided on both sides of the fixed plate, and movable blocks are slidably inserted into the inside of the two movable notches. The sides of the two movable blocks that are away from each other are fixed to the limiting plate, and a second spring is fixed inside the movable notch, and one end of the second spring is fixed to one side of the movable block.

[0010] As a further solution of the present invention, a plurality of anti-slip pads are fixed on the inner circle of the fixing ring, and the plurality of anti-slip pads are respectively located between the plurality of fixing grooves.

[0011] As a further solution of the present invention, two tightening plates are fixed to the outer circumferential wall of the fixing ring, a bolt is threadedly connected between the two tightening plates, and the fixing notch is located between the two tightening plates.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] The stress detection device, through the setting of the detection structure, the inner circular wall surface of the fixed ring fits with the outer circular wall surface of the pipeline. When the inner wall of the fixed ring contacts the outer wall of the pipeline, the fixed plate retracts into the fixed groove, and at the same time, the rebound force of the first spring pushes the fixed plate, so that the stress sheet on one side of the fixed plate fits more closely with the pipeline. Multiple stress sheets detect the stress of the pipeline and feed back the detection data to the PLC controller for recording, thereby achieving full detection of the outer circular wall surface of the pipeline. At the same time, by inserting the pipeline into the fixed ring, it is convenient for the staff to install the device at the pipeline elbow for stress detection, thereby improving the detection effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a pipeline stress detection device proposed by the utility model;

[0015] Figure 2 This is a schematic diagram of the disassembled structure of a pipeline stress detection device proposed by the utility model;

[0016] Figure 3 This is a schematic diagram of the split structure of the fixed plate of a pipeline stress detection device proposed by the present invention;

[0017] Figure 4 A pipeline stress detection device proposed by the utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0018] In the figure: 1. Fixed ring; 2. Fixed notch; 201. Stress plate; 202. Fixed groove; 203. Fixed plate; 204. Detection box; 205. Mounting groove; 206. First spring; 3. Limiting groove; 301. Limiting plate; 4. Movable notch; 401. Movable block; 402. Second spring; 5. Anti-slip pad; 6. Tightening plate. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean 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 an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0022] Reference Figures 1-4 A pipeline stress detection device includes a fixed ring 1, a fixed notch 2 is opened on one side of the fixed ring 1, a detection structure is arranged inside the fixed ring 1, the detection structure includes five stress sheets 201 arranged inside the fixed ring 1, the five stress sheets 201 are distributed at intervals, a plurality of fixed grooves 202 are opened on the inner circular wall surface of the fixed ring 1, five fixed plates 203 are arranged inside the fixed ring 1, the stress sheets 201 are fixed to one side of the fixed plates 203, the fixed plates 203 are slidably inserted into the inside of the fixed grooves 202, a detection box 204 is fixed on the top surface of the fixed ring 1, a PLC controller is fixed inside the detection box 204, the stress sheets 201 are electrically connected to the PLC controller, and the fixed ring 1 is made of stainless steel.

[0023] In this embodiment, a mounting groove 205 is provided inside the fixing groove 202, and a first spring 206 is fixed on one side of the fixing plate 203 close to the fixing groove 202. The first spring 206 is slidingly arranged inside the mounting groove 205. Through the setting of the detection structure, the staff fixes the notch 2 and inserts the pipe into the fixing ring 1, so that the inner circular wall surface of the fixing ring 1 fits with the outer circular wall surface of the pipe. When the inner wall of the fixing ring 1 contacts the outer wall of the pipe, the five stress sheets 201 arranged at intervals fit with the outer wall of the pipe, and the fixing plate 203 retracts into the fixing groove 202. The first spring 206 is squeezed and contracted. At the same time, the rebound force of the first spring 206 pushes the fixing plate 203, so that the stress sheet 201 on one side of the fixing plate 203 fits more closely with the pipe. Multiple stress sheets 201 detect the stress of the pipe and feed back the detection data to the PLC controller for recording, thereby achieving full detection of the outer circular wall surface of the pipe. At the same time, by inserting the pipe into the fixing ring 1, it is convenient for the staff to install the device at the pipe elbow for stress detection, thereby improving the detection effect of the device.

[0024] In this embodiment, limiting grooves 3 are provided on both sides of the inner wall of the fixing groove 202, and limiting plates 301 are provided on both sides of the fixing plate 203. The limiting plates 301 are slidingly arranged with the inner wall of the limiting groove 3. Through the coordinated arrangement of the limiting plates 301 and the limiting groove 3, the fixing plate 203 can be prevented from falling out of the fixing groove 202, thereby preventing the stress sheet 201 from falling from the inner wall of the fixing ring 1, and ensuring that the detection work is carried out stably.

[0025] When the cam 203 is in the closed position, the cam 203 is in the closed position, and the cam 203 is in the closed position, so that the cam 203 is in the closed position and the cam 203 is out of the closed position.

[0026] In this embodiment, a plurality of anti-skid pads 5 are fixed on the inner circle of the fixing ring 1. The anti-skid pads 5 are respectively located between the fixing grooves 202. The anti-skid pads 5 can prevent the fixing ring 1 and the pipeline from shifting after installation.

[0027] In this embodiment, two tightening plates 6 are fixed to the outer circular wall surface of the fixing ring 1, and bolts are threadedly connected between the two tightening plates 6. The fixing notch 2 is located between the two tightening plates 6. The fixing ring 1 can be fixed on the pipeline by the coordinated arrangement of the tightening plates 6 and the bolts, so that the inner circular wall surface of the fixing ring 1 fits tightly with the outer wall of pipelines of different diameters.

[0028] Working principle: During use, the staff fixes the notch 2 and puts the pipe into the fixing ring 1, so that the inner circular wall surface of the fixing ring 1 fits with the outer circular wall surface of the pipe. When the inner wall of the fixing ring 1 contacts the outer wall of the pipe, the five stress sheets 201 arranged at intervals fit with the outer wall of the pipe, and the fixing plate 203 retracts into the fixing groove 202. The first spring 206 is squeezed and contracts. At the same time, the rebound force of the first spring 206 pushes the fixing plate 203, so that the stress sheet 201 on one side of the fixing plate 203 fits more tightly with the pipe. Multiple stress sheets 201 detect the stress of the pipe and feed back the detection data to the PLC controller for recording. The matching setting of the limit plate 301 and the limit groove 3 can prevent the fixing plate 203 from falling out of the fixing groove 202, thereby preventing the stress sheet 201 from falling from the inner wall of the fixing ring 1, ensuring the stable detection work. When working When personnel need to change the position of the fixed plate 203 and the stress piece 201 inside the fixed ring 1, the staff can press the movable block 401 to make the limit plate 301 disengage from the limit groove 3 and retract into the movable notch 4 to remove the fixed plate 203 from the fixed groove 202, and then put the fixed plate 203 and the stress piece 201 into the fixed groove 202 at the specified position, release the pressure on the movable block 401, and the limit plate 301 pops out under the action of the second spring 402 and inserts into the limit groove 3 in the corresponding fixed groove 202, thereby realizing the adjustment of the position of the fixed plate 203 and the stress piece 201. The anti-slip pad 5 can prevent the fixed ring 1 from shifting after installation with the pipeline. The fixing ring 1 can be fixed on the pipeline by the matching setting of the tightening plate 6 and the bolt, so that the inner circular wall surface of the fixed ring 1 fits tightly with the outer wall of pipelines of different diameters.

[0029] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A pipeline stress detection device, comprising a fixing ring (1), characterized in that: A fixing notch (2) is provided on one side of the fixing ring (1), and a detection structure is provided inside the fixing ring (1). The detection structure comprises five stress sheets (201) provided inside the fixing ring (1), the five stress sheets (201) being spaced apart, a plurality of fixing grooves (202) being provided on the inner circular wall surface of the fixing ring (1), and five fixing plates (203) being provided inside the fixing ring (1), the stress sheets (201) being fixed to one side of the fixing plates (203), the fixing plates (203) being slidably inserted into the inside of the fixing grooves (202), a detection box (204) being fixed on the top surface of the fixing ring (1), and a PLC controller being fixed inside the detection box (204).

2. A pipeline stress detection device according to claim 1, characterized in that: The fixing groove (202) is provided with a mounting groove (205) therein, and a first spring (206) is fixed to one side of the fixing plate (203) close to the fixing groove (202), and the first spring (206) is slidably arranged inside the mounting groove (205).

3. A pipeline stress detection device according to claim 2, characterized in that: Limiting grooves (3) are provided on both sides of the inner wall of the fixing groove (202), and limiting plates (301) are provided on both sides of the fixing plate (203). The limiting plates (301) are slidably arranged with the inner wall of the limiting groove (3).

4. A pipeline stress detection device according to claim 3, characterized in that: Both sides of the fixed plate (203) are provided with movable notches (4), and movable blocks (401) are slidably inserted into the interiors of the two movable notches (4). The sides of the two movable blocks (401) that are away from each other are fixed to the limiting plate (301), and a second spring (402) is fixed inside the movable notch (4), and one end of the second spring (402) is fixed to one side of the movable block (401).

5. A pipeline stress detection device according to claim 4, characterized in that: The inner circle of the fixing ring (1) is fixed with a plurality of anti-slip pads (5), and the plurality of anti-slip pads (5) are respectively located between the plurality of fixing grooves (202).

6. A pipeline stress detection device according to claim 5, characterized in that: Two tightening plates (6) are fixed to the outer circumferential wall of the fixing ring (1), a bolt is threadedly connected between the two tightening plates (6), and the fixing notch (2) is located between the two tightening plates (6).

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