A strength testing device for petrochemical machinery pipelines

Abstract

The invention discloses a pipeline strength detection device for petrochemical machinery, comprising a top plate and a bottom plate, a support rod fixed between the top plate and the bottom plate, a first spring sleeved on each of the support rods, a movable ring sleeved on two adjacent support rods, the movable ring arranged above the first spring, an arc plate placed between the two movable rings, middle parts of opposite sides of the two movable rings are rotatably connected with a rotating shaft, the rotating shaft is fixed to one end of one side of the arc plate, two symmetrical strip through holes are provided on one side of the movable ring close to the arc plate, a plurality of first telescopic rods are fixed on both sides of the arc plate, piston rods of the first telescopic rods penetrate adjacent strip through holes and abut against the inner wall of the movable ring, an extrusion mechanism is arranged on the top of the arc plate, and the invention can detect not only straight pipelines but also the strength of pipeline elbows by rotating the arc plate to make the arc plate match different pipelines.

Description

Technical Field

[0001] The invention relates to the technical field of pipeline detection, and in particular to a petrochemical machinery pipeline strength detection device. Background Art

[0002] In order to ensure construction safety and reliable operation, before using petrochemical machinery pipelines, various types of inspections are required for such pipelines, including pipeline strength inspections. If the pipeline strength does not meet the standards, oil leakage or even the entire pipeline breakage may easily occur, causing serious consequences. However, the existing pipeline strength detection device has a single function and can only detect straight pipelines, but not curved pipeline elbows. In view of this, we propose a petrochemical machinery pipeline strength detection device. Summary of the invention

[0003] In order to solve the above technical problems, the purpose of the present invention is to provide a petrochemical machinery pipeline strength detection device, which can not only detect the strength of straight pipelines, but also detect the strength of pipeline elbows.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A petrochemical mechanical pipeline strength detection device comprises a top plate 1 and a bottom plate 2, four support rods 3 are fixed at the four corners between the top plate 1 and the bottom plate 2, the support rods 3 are sleeved with first springs 4, two adjacent support rods 3 are sleeved with movable rings 7, and the movable rings 7 are arranged above the first springs 4; an arc plate 11 is placed between the two movable rings 7, and the two movable rings 7 are fixed to one side end of the arc plate 11 through a rotating shaft 10; two symmetrical strip through holes 8 are opened on the side of the movable ring 7 close to the arc plate 11, and multiple first telescopic rods 9 are fixed on both sides of the arc plate 11, and the piston rods of the first telescopic rods 9 pass through the adjacent strip through holes 8 and abut against the inner wall of the movable ring 7; the first telescopic rod 9 is controlled to be extended and retracted by a control switch 17, a squeezing mechanism is provided on the top of the arc plate 11, a detection mechanism is provided at the bottom of the arc plate 11, and a control switch 17 is fixed on the side wall of the bottom plate 2, and the control switch 17 is electrically connected to the squeezing mechanism and the detection mechanism.

[0006] The squeezing mechanism includes a pressing plate 12 and a plurality of second telescopic rods 13 . The second telescopic rods 13 are fixed to the bottom surface of the top plate 1 . The piston rod ends of the second telescopic rods 13 are fixed to the top surface of the pressing plate 12 . An elastic mechanism is fixed to the bottom surface of the pressing plate 12 .

[0007] The elastic mechanism includes a second spring 14 , an extrusion disk 15 and a connecting rod 16 . The connecting rod 16 is inserted and fixed inside the two ends of the second spring 14 . The top connecting rod 16 is fixed to the bottom surface of the pressure plate 12 , and the bottom connecting rod 16 is fixed to the top surface of the extrusion disk 15 .

[0008] The detection mechanism includes two pressure sensors 6 . A groove 5 is formed on the top surface of the bottom plate 2 . The two pressure sensors 6 are placed inside the groove 5 , and one of the pressure sensors 6 is placed below the arc plate 11 .

[0009] The model of the pressure sensor 6 is a GPB200 weighing sensor.

[0010] The movable ring 7 is a belt-shaped structure with a through hole in the middle, and is sleeved on the two support rods 3 .

[0011] The extrusion mechanism is used to push the pressing plate 12 downwards, and its function is to press the arc plate 11 downwards through the pressing plate 12, and to press the pipe downwards through the arc plate 11.

[0012] The detection mechanism is used to detect the pressure on the pipeline, and its function is to determine the strength of the pipeline by measuring the size of the pressure and the deformation of the pipeline.

[0013] The squeezing plate 15 is of a truncated cone structure, is hollow inside, and is made of elastic rubber.

[0014] The control switch 17 is a plc controller.

[0015] Beneficial effects of the present invention:

[0016] The present invention can detect not only straight pipes but also the strength of pipe elbows by rotating the curved plate to match the curved plate with different pipes. Compared with the prior art, the present invention has stronger functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 For the present invention Figure 1 Schematic diagram of the structure at point A in .

[0019] Figure 3 It is a schematic diagram of the overall structure of the present invention from another perspective.

[0020] Figure 4 For the present invention Figure 3 Schematic diagram of the structure at point B in the figure.

[0021] Figure 5 It is a schematic diagram of the overall structure (another state) of the present invention.

[0022] In the figure: top plate 1, bottom plate 2, support rod 3, first spring 4, groove 5, pressure sensor 6, movable ring 7, strip through hole 8, first telescopic rod 9, rotating shaft 10, arc plate 11, pressure plate 12, second telescopic rod 13, second spring 14, extrusion plate 15, connecting rod 16, control switch 17. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-4 A petrochemical mechanical pipeline strength detection device shown in the figure includes a square top plate 1 and a square bottom plate 2, four support rods 3 are fixed at the four corners between the top plate 1 and the bottom plate 2, and the support rods 3 are each provided with a first spring 4, and two adjacent support rods 3 are provided with a movable ring 7, and the movable ring 7 is arranged above the first spring 4.

[0025] An arc plate 11 is placed between the two movable rings 7 . The middle parts of the arc plate 11 and the opposite sides of the two movable rings 7 are rotatably connected with a rotating shaft 10 . The rotating shaft 10 is fixed to one end of the arc plate 11 .

[0026] The surface of the arc plate 11 is an arc-shaped structure, and the middle of the arc plate 11 and the two sides are at different levels.

[0027] Two symmetrical strip through holes 8 are provided on one side of the movable ring 7 close to the arc plate 11 . A plurality of first telescopic rods 9 are fixed on both sides of the arc plate 11 . The piston rods of the first telescopic rods 9 pass through adjacent strip through holes 8 and abut against the inner wall of the movable ring 7 .

[0028] An extrusion mechanism is provided on the top of the arc plate 11, which includes a pressing plate 12 and a plurality of second telescopic rods 13. The second telescopic rods 13 are fixed on the bottom surface of the top plate 1, the piston rod ends of the second telescopic rods 13 are fixed on the top surface of the pressing plate 12, and an elastic mechanism is fixed on the bottom surface of the pressing plate 12.

[0029] The elastic mechanism includes a second spring 14 , a squeeze disk 15 and a connecting rod 16 . The connecting rod 16 is inserted and fixed inside the two ends of the second spring 14 . The top connecting rod 16 is fixed to the bottom surface of the pressure plate 12 , and the bottom connecting rod 16 is fixed to the top surface of the squeeze disk 15 .

[0030] Working principle of the present invention:

[0031] When in use, first turn the raised side of the arc plate 11 upward, then insert the straight pipe under the arc plate 11 between the top plate 1 and the bottom plate 2, control the piston rod of the second telescopic rod 13 to extend by the control switch 17, and push the pressure plate 12 downward by the piston rod of the second telescopic rod 13, and the elastic mechanism moves downward with the pressure plate 12. Since the top surface of the arc plate 11 is an arc structure, when the extrusion plate 15 contacts the top surface of the arc plate 11, part of the extrusion plate 15 pushes the arc plate 11 downward, and at the same time, the second spring 14 contracts to generate elastic force. At this time, the two connecting rods 16 approach each other, and the remaining extrusion plates 15 continue to move downward until they are released to the arc plate 11. The extrusion plates 15 are provided with multiple, Through multiple squeezing disks 15, the downward squeezing force of the pressure plate 12 can be evenly applied to the top surface of the arc plate 11, and the straight pipe can be squeezed downward by the arc plate 11 to squeeze the pipe; according to the pipes with different outer diameters, the first telescopic rod 9 can be started, and the piston rod of the first telescopic rod 9 is extended and abutted against the inner wall of one side of the movable ring 7, so that under the reaction force, the two ends of the arc plate 11 are close to each other, so that the arc plate 11 clamps the two sides of the pipe, and the arc plate 11 can be made of elastic rubber material; when the arc plate 11 squeezes the pipe downward, the pipe squeezes the pressure sensor 6 downward, so that the pressure on the pipe is detected by the pressure sensor 6, and the strength of the pipe is calculated.

[0032] When it is necessary to detect the pipe elbow, the piston rod of the first telescopic rod 9 is retracted so that the piston rod is disengaged from the strip through hole 8, and then the arc plate 11 is rotated around the rotating shaft 10 so that the raised part in the middle of the arc plate 11 is downward, and then the pipe elbow is inserted so that the raised part at the bottom of the arc plate 11 matches the curved part of the pipe, and finally, the pressure on the pipe is detected by another pressure sensor 6.

Claims

1. A petrochemical mechanical pipeline strength detection device, characterized in that: The invention comprises a square top plate (1) and a bottom plate (2), wherein four support rods (3) are fixed at four corners between the top plate (1) and the bottom plate (2), each of the support rods (3) is sleeved with a first spring (4), and two adjacent support rods (3) are sleeved with a movable ring (7), wherein the movable ring (7) is arranged above the first spring (4); an arc-shaped plate (11) is placed between the two movable rings (7), and the two movable rings (7) are fixed to one end of the arc-shaped plate (11) through a rotating shaft (10); and the movable ring (7) is opened on one side close to the arc-shaped plate (11). Two symmetrical strip-shaped through holes (8) are provided, and a plurality of first telescopic rods (9) are fixed on both sides of the arc-shaped plate (11), and the piston rods of the first telescopic rods (9) penetrate the adjacent strip-shaped through holes (8) and abut against the inner wall of the movable ring (7); the first telescopic rods (9) are controlled to be extended and retracted by a control switch (17), a squeezing mechanism is provided on the top of the arc-shaped plate (11), a detection mechanism is provided on the bottom of the arc-shaped plate (11), and a control switch (17) is fixed on the side wall of the bottom plate (2), and the control switch (17) is electrically connected to the squeezing mechanism and the detection mechanism; When it is necessary to inspect the pipe elbow, the piston rod of the first telescopic rod (9) is retracted so that the piston rod is disengaged from the strip-shaped through hole (8), and then the arc plate (11) is rotated around the rotation axis (10) so that the raised portion in the middle of the arc plate (11) is facing downward; The squeezing mechanism comprises a pressing plate (12) and a plurality of second telescopic rods (13), wherein the second telescopic rods (13) are fixed on the bottom surface of the top plate (1), the piston rod ends of the second telescopic rods (13) are fixed on the top surface of the pressing plate (12), and an elastic mechanism is fixed on the bottom surface of the pressing plate (12); The elastic mechanism comprises a second spring (14), an extrusion disk (15) and a connecting rod (16), wherein the connecting rod (16) is inserted and fixed inside the two ends of the second spring (14), the top connecting rod (16) is fixed on the bottom surface of the pressure plate (12), and the bottom connecting rod (16) is fixed on the top surface of the extrusion disk (15); The detection mechanism comprises two pressure sensors (6). A groove 5 is provided on the top surface of the bottom plate (2). The two pressure sensors (6) are placed inside the groove (5), and one of the pressure sensors (6) is placed below the arc plate (11).

2. A petrochemical mechanical pipeline strength detection device according to claim 1, characterized in that: The model of the pressure sensor (6) is a GPB200 weighing sensor.

3. A petrochemical mechanical pipeline strength detection device according to claim 1, characterized in that: The movable ring (7) is a belt-shaped structure with a through hole in the middle, and is sleeved on the two support rods (3).

4. A petrochemical mechanical pipeline strength detection device according to claim 1, characterized in that: The extrusion mechanism is used to push the pressing plate (12) downwards, to press the arc-shaped plate (11) downwards through the pressing plate (12), and to press the pipeline downwards through the arc-shaped plate (11).

5. The petrochemical mechanical pipeline strength detection device according to claim 1 is characterized in that: The squeezing plate (15) is of a truncated cone structure, is hollow inside, and is made of elastic rubber material.

6. A petrochemical mechanical pipeline strength detection device according to claim 1, characterized in that: The control switch (17) is a PLC controller.

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