A positioning and detection device for hardness measurement points of elbows in high-temperature and high-pressure steam pipelines

Abstract

The present invention discloses a positioning detection device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines, belonging to the technical field of hardness detection of pipeline elbows. The device includes a first slide rail, a second slide rail and a pipeline elbow. A T-shaped chute is provided on one side of the first slide rail away from the pipeline elbow, and a first chute is provided on one side of the second slide rail away from the first slide rail. By adjusting the positions of the first slide rail and the second slide rail, and then adjusting and positioning the position of the sliding mechanism, the hardness detection points can be accurately positioned. Since the detection positions are the same each time after accurate positioning, the hardness values detected each time are traceable, and the detected values can be compared with the previous detected values. In this way, the hardness values of the elbows of high-temperature and high-pressure steam pipelines can be supervised for a long time, so as to understand the change of the hardness values of the elbows and master their operating conditions.

Description

Technical Field

[0001] The present invention belongs to the technical field of hardness detection of pipeline elbows, and specifically relates to a positioning detection device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines. Background Art

[0002] Hardness is one of the most commonly used indicators for evaluating the mechanical properties of metal materials. The on-site hardness detection value is of great significance for the safety status evaluation of high-temperature and high-pressure steam pipelines. Therefore, extremely high accuracy is required for the hardness detection of high-temperature and high-pressure steam pipelines. However, due to the uneven hardness phenomenon during the preparation process of elbows / bends of high-temperature and high-pressure steam pipelines, there will be certain differences in the hardness values at different positions when the elbows / bends leave the factory. And each time during on-site inspection, due to various reasons, the positioning of the hardness measurement points is inaccurate, resulting in more or less changes in the positions of the hardness measurement points during each (different maintenance) detection, making it impossible to track the on-site hardness detection values each time, and the measured values cannot play a role in comparison and supervision. Therefore, a positioning detection device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines needs to be proposed to detect the above problems. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a positioning detection device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines, which has the advantages of being able to accurately locate the hardness detection points and having the same detection position each time after accurate positioning, solving the problem that during each detection, the positions of the hardness measurement points change more or less, resulting in the inability to track the on-site hardness detection values each time, and the measured values cannot play a role in comparison and supervision.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A positioning detection device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines includes a first slide rail, a second slide rail, and a pipeline elbow;

[0006] The side surface of the first slide rail is lapped with the side surface of the pipeline elbow, and the opposite sides of the first slide rail and the second slide rail are lapped with each other. A T-shaped chute is opened on the side of the first slide rail away from the pipeline elbow, a first chute is opened on the side of the second slide rail away from the first slide rail, a second chute is opened on one side of the inner wall of the first chute, and a sliding mechanism is arranged inside the first chute. The sliding mechanism includes a slider, one side of the slider is fixedly connected with a connecting column, the end of the connecting column away from the slider is fixedly connected with a T-shaped slider, and the side of the slider away from the connecting column is fixedly connected with a moving column.

[0007] The present invention is further improved in that the number of both the first slide rail and the second slide rail is three.

[0008] A further improvement of the present invention lies in that the number of sliding mechanisms is nine.

[0009] A further improvement of the present invention lies in that threaded holes penetrating up and down are provided inside the moving column, the slider, the connecting column and the T-shaped slider, a threaded rod is threadedly connected inside the threaded hole, a movable groove is provided at one end of the T-shaped slider away from the connecting column, and one end of the threaded rod is movably connected with a sealing block.

[0010] A further improvement of the present invention lies in that the inside of the threaded hole communicates with the inside of the movable groove, the sealing block is located inside the movable groove, and the sealing block is movably connected with the inside of the movable groove.

[0011] A further improvement of the present invention lies in that the connecting column is movably connected with the inside of the first chute, the first chute communicates with one side of the second slide rail close to the first slide rail, and the first chute communicates with the T-shaped chute.

[0012] A further improvement of the present invention lies in that the T-shaped slider is adapted to the T-shaped chute, and the T-shaped slider is movably connected with the inside of the T-shaped chute.

[0013] Compared with the prior art, the present invention provides a positioning detection device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines, and has the following beneficial effects:

[0014] 1. For the positioning detection device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines, through the mutual cooperation among the first slide rail, the second slide rail, the T-shaped chute, the first chute, the second chute, the slider, the connecting column, the T-shaped slider and the moving column, the positions of the first slide rail and the second slide rail can be adjusted, and then the positions of the sliding mechanisms can be adjusted and positioned, so that the hardness detection points can be accurately positioned. Since the detection positions are the same each time after accurate positioning, the hardness values detected each time are traceable, and the detected values can be compared with the previous detected values, so that the hardness values of the elbows of high-temperature and high-pressure steam pipelines can be supervised for a long time, thereby understanding the change of the hardness values of the elbows and mastering their operating conditions.

[0015] 2. For the positioning detection device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines, through the mutual cooperation among the threaded hole, the threaded rod, the movable groove and the sealing block, the threaded rod can be rotated, and the threaded rod can move inside the threaded hole, and the sealing block can be driven to move inside the movable groove. When the sealing block moves towards the T-shaped chute, the side of the sealing block away from the threaded rod closely abuts against one side of the inner wall of the T-shaped chute, so that the T-shaped slider can be fixed inside the T-shaped chute, and the sliding mechanism can be prevented from sliding inside the first slide rail and the second slide rail, realizing the positioning of the hardness measurement points of the pipeline elbow. Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the present invention;

[0017] Figure 2 It is a schematic structural diagram of the first slide rail and the second slide rail of the present invention;

[0018] Figure 3 It is a partial structural cross-sectional view of the first slide rail and the second slide rail of the present invention.

[0019] Explanation of reference numerals in the drawings:

[0020] 1. First slide rail; 2. Second slide rail; 3. Pipe elbow; 4. T-shaped chute; 5. First chute; 6. Second chute; 7. Slide block; 8. Connecting column; 9. T-shaped slider; 10. Moving column; 11. Threaded hole; 12. Threaded rod; 13. Movable slot; 14. Sealing block. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Please refer to Figures 1-3, a positioning and detection device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines provided by the present invention, includes a first slide rail 1, a second slide rail 2 and a pipeline elbow 3. The number of both the first slide rail 1 and the second slide rail 2 is three. The side surface of the first slide rail 1 is lapped with the side surface of the pipeline elbow 3. One side of the first slide rail 1 opposite to the second slide rail 2 is mutually lapped. A T-shaped chute 4 is opened on the side of the first slide rail 1 away from the pipeline elbow 3. A first chute 5 is opened on the side of the second slide rail 2 away from the first slide rail 1. A second chute 6 is opened on one side of the inner wall of the first chute 5. A sliding mechanism is arranged inside the first chute 5. The number of the sliding mechanisms is nine. The sliding mechanism includes a slider 7. One side of the slider 7 is fixedly connected with a connecting column 8. The connecting column 8 is movably connected with the inside of the first chute 5. The first chute 5 communicates with the side of the second slide rail 2 close to the first slide rail 1. The first chute 5 communicates with the T-shaped chute 4. One end of the connecting column 8 away from the slider 7 is fixedly connected with a T-shaped slider 9. Under the action of the connecting column 8, the slider 7 moves inside the first chute 5, which can drive the T-shaped slider 9 to slide inside the T-shaped chute 4. The T-shaped slider 9 is adapted to the T-shaped chute 4 and is movably connected with the inside of the T-shaped chute 4. One side of the slider 7 away from the connecting column 8 is fixedly connected with a moving column 10. One end of the moving column 10 away from the slider 7 is located outside the second slide rail 2, so as to facilitate the movement of the moving column 10. And by moving the moving column 10, the slider 7, the connecting column 8 and the T-shaped slider 9 can be moved together, so that the distance between the three first slide rails 1 can be adjusted, and the distance between the three second slide rails 2 can also be adjusted. Furthermore, the position of the sliding mechanism can be adjusted.

[0023] Threaded holes 11 penetrating up and down are provided inside the moving column 10, the slider 7, the connecting column 8, and the T-shaped slider 9. The threaded holes 11 inside the moving column 10, the slider 7, the connecting column 8, and the T-shaped slider 9 communicate with each other, and the lengths of the four threaded holes 11 are different. A threaded rod 12 is threadedly connected inside the threaded hole 11. The threaded rod 12 is sequentially threadedly connected to the threaded holes 11 inside the moving column 10, the slider 7, the connecting column 8, and the T-shaped slider 9. An activity groove 13 is provided at one end of the T-shaped slider 9 away from the connecting column 8. One end of the threaded rod 12 is movably connected to a sealing block 14. The threaded hole 11 communicates with the inside of the activity groove 13. The sealing block 14 is located inside the activity groove 13, and the sealing block 14 is movably connected to the inside of the activity groove 13. By rotating the threaded rod 12, the threaded rod 12 can move inside the threaded hole 11. The threaded rod 12 is rotationally connected to the sealing block 14, and the sealing block 14 can be driven to move together by the threaded rod 12, so that the sealing block 14 moves inside the activity groove 13. When the sealing block 14 abuts against the inner side wall of the T-shaped sliding groove 4, by tightening the threaded rod 12, the sealing block 14 tightly abuts against the inside of the T-shaped sliding groove 4, and the sealing block 14 can be prevented from moving. Furthermore, the T-shaped slider 9 can be fixed inside the T-shaped sliding groove 4, thereby fixing the nine sliding mechanisms, and realizing the positioning of the hardness measurement points of the pipe elbow 3.

[0024] During use, first, calculate according to the bending radius of the pipe elbow 3 and adjust the distance between the three first sliding rails 1 so that the distance between the three first sliding rails 1 is equal to one-sixteenth of the circumference of the circle with the bending radius of the pipe elbow 3; secondly, calculate according to the circumference of the circle with the distance from the center of the pipe elbow 3 to the side surface of the pipe elbow 3 as the radius and adjust the distance between the three second sliding rails 2 so that the distance between the three second sliding rails 2 is equal to one-fourth of the circumference of the circle with the distance from the center of the pipe elbow 3 to the side surface of the pipe elbow 3 as the radius; finally, when the positions of the three first sliding rails 1 and the three second sliding rails 2 are determined, by rotating the threaded rod 12 clockwise, the threaded rod 12 can be driven to move inside the threaded hole 11, and the threaded rod 12 moves towards the direction of the activity groove 13, driving the sealing block 14 to move inside the activity groove 13 towards the inside of the T-shaped sliding groove 4, and making the sealing block 14 abut against the inner wall of the T-shaped sliding groove 4 to prevent the sealing block 14 from moving. Furthermore, the T-shaped slider 9 and the slider 7 can be fixed, thereby fixing the sliding mechanism on the first sliding rail 1 and the second sliding rail 2, and completely determining the positions of the nine sliding mechanisms, so that the positions of the nine sliding devices are the hardness measurement points.

[0025] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art will appreciate that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A positioning and detecting device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines, characterized in that: it includes a first slide rail (1), a second slide rail (2) and an elbow (3); The side surface of the first slide rail (1) is lapped with the side surface of the elbow (3), and one side of the first slide rail (1) opposite to the second slide rail (2) is lapped with each other. A T-shaped chute (4) is opened on the side of the first slide rail (1) away from the elbow (3). A first chute (5) is opened on the side of the second slide rail (2) away from the first slide rail (1). A second chute (6) is opened on one side of the inner wall of the first chute (5). A sliding mechanism is arranged inside the first chute (5). The sliding mechanism includes a slider (7). One side of the slider (7) is fixedly connected with a connecting column (8). One end of the connecting column (8) away from the slider (7) is fixedly connected with a T-shaped slider (9). One side of the slider (7) away from the connecting column (8) is fixedly connected with a moving column (10); The number of the first slide rail (1) and the second slide rail (2) is three each; The connecting column (8) is movably connected with the inside of the first chute (5), and the first chute (5) communicates with one side of the second slide rail (2) close to the first slide rail (1); The first chute (5) communicates with the T-shaped chute (4); The T-shaped slider (9) is adapted to the T-shaped chute (4), and the T-shaped slider (9) is movably connected with the inside of the T-shaped chute (4).

2. The positioning and detecting device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines according to claim 1, characterized in that: The number of the sliding mechanisms is nine.

3. The positioning and detecting device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines according to claim 1, characterized in that: Threaded holes (11) penetrating up and down are opened inside the moving column (10), the slider (7), the connecting column (8) and the T-shaped slider (9). A threaded rod (12) is threadedly connected inside the threaded hole (11). An activity groove (13) is opened at one end of the T-shaped slider (9) away from the connecting column (8). One end of the threaded rod (12) is movably connected with a sealing block (14).

4. The positioning and detecting device for hardness measurement points of elbows of high-temperature and high-pressure steam pipelines according to claim 3, characterized in that: The threaded hole (11) communicates with the inside of the activity groove (13). The sealing block (14) is located inside the activity groove (13), and the sealing block (14) is movably connected with the inside of the activity groove (13).

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