Stress detection device for high-temperature pressure pipeline

Abstract

The invention provides a stress detection device for a high-temperature pressure pipeline, which structurally comprises a detection main body, fixed frames, an operation platform, a base, a track, a controller and a movable seat, after the fixed frames are further improved, the two fixed frames are matched with the track and the movable seat to axially move the pipeline above the operation platform; the clamping claws and the adjusting assembly of the fixing frame and the detection probe are matched outside the pipeline in the circular ring in a crossed mode, the fixed part to be detected of the pipeline can be surrounded and supported in a four-claw fixed-point extending mode, then the pipeline is axially rotated by means of the adjusting assembly, and the pipeline is adjusted to the position suitable for the detection probe to detect the part to be detected of the pipeline; the detection probe is further close to the fixed to-be-detected part of the pipeline for effective detection, accurate data of stress change of the high-temperature pressure pipeline are obtained more quickly and transmitted to the detection main body for data analysis, and the stress detection accuracy of the device on the high-temperature pressure pipeline is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline detection, in particular to a stress detection device for high-temperature pressure pipeline. BACKGROUND

[0002] The high-temperature pressure pipeline refers to a tubular device for conveying gas or liquid by using certain pressure, the scope of which is defined as the pipeline with the maximum working pressure greater than or equal to 0.1 MPa (gauge pressure), the medium being gas, liquefied gas, steam or flammable, explosive, toxic, corrosive liquid with the maximum working temperature higher than or equal to the standard boiling point, and the nominal diameter being greater than or equal to 50 mm. The internal stress of the high-temperature pressure pipeline is generated due to the internal or external load and temperature change. When the high-temperature pressure pipeline is subjected to high temperature, the internal stress of the pipeline changes, resulting in thermal expansion and thermal deformation. Therefore, it is particularly important to obtain the stress parameters of each position of the high-temperature pressure pipeline by using the stress detection device, which can effectively prevent the pipe burst accident of the high-temperature pressure pipeline.

[0003] As mentioned above, the present inventor found that the existing stress detection device mainly has the following defects: generally, the stress detection device is fixed on the pipeline before detection, so that the stress detection device can detect the fixed measurement position of the high-temperature pressure pipeline. The clamping jaws around the outside of the pipeline can only be fixed and seized on the outside of the pipeline, which will press the fixed measurement position of the pipeline with a certain coverage area, so that the internal stress of the measurement position of the pipeline changes, resulting in thermal expansion and thermal deformation. At the same time, the clamping jaws will have a reverse pressing force on the measurement position, even offset outside the measurement position, and press a large area of the pipeline of other segments, resulting in further deformation of the measurement position of the fixed segment of the pipeline, so that the stress detection device loses accuracy in detecting the stress of the segment of the high-temperature pressure pipeline, and damages the surface of the measurement position of the pipeline. SUMMARY

[0004] The technical solution adopted by the present application to achieve the technical purpose is: a stress detection device for high-temperature pressure pipeline, which comprises a detection main body, a fixing frame, an operation platform, a base, a track, a controller and a moving seat. The detection main body is installed between the fixing frames and electrically connected between the operation platform and the controller. The controller is arranged outside the base, and the track is formed in the upper part of the operation platform. The fixing frame is characterized in that: As a further improvement of the present application, the fixing frame is provided with a circular ring, the circular ring and the sleeve ring are fitted together, and the circular ring is provided with a clamping jaw, an adjusting assembly and a detection probe inside. Two clamping jaws are vertically arranged inside the circular ring through the lifting rod. As a further improvement of the application, the clamping jaw is further provided with an extension handle which is slidingly fitted in the slide rail through a bracket, the slide rail and the connecting block have a vertical rod movably arranged in the middle part, and the bracket is rotatably fitted between the extension handle and the vertical rod; As a further improvement of the application, the clamping jaw and the adjusting assembly and the detection probe are staggered arranged in the ring, so that the ring can be fully and omnidirectionally arranged around the pipeline, and the extension handle of the clamping jaw is gap-fitted outside the fixed section of the pipeline, so that the extension handle can walk outside the fixed section of the pipeline.

[0005] As a further improvement of the application, the detection main body is electrically connected between the fixing frames, and the fixing frames are provided with a moving seat at the bottom, and the moving seat is left-right slidingly arranged above the operation platform through the control of the controller.

[0006] As a further improvement of the application, the bottom of the ring is fixed with the moving seat, and the middle part of the ring is symmetrically arranged with two lifting rods, and the clamping jaw is arranged at the end of the lifting rod, and the adjusting assembly and the detection probe are gap-fitted outside the pipeline.

[0007] As a further improvement of the application, the end of the extension handle is rotatably fitted at one end of the bracket, the other end of the bracket is hingedly arranged at the end of the vertical rod, the connecting block is fixedly arranged on the surface of the ring, and the middle part of the slide rail is provided with two lifting rods and a vertical rod, and three-point one-line stable reinforcement support is arranged on the arc-shaped outer part of the slide rail.

[0008] As a further improvement of the application, the extension handle is further provided with an external strip, the external strip is arranged outside the arch strip, the arch strip is arranged outside the adhering layer through a movable clamp, and the adhering layer is arranged inside the handle; As a further improvement of the application, one end of the handle is connected with one end of the bracket, and the handle is slidingly arranged in the slide rail through the bracket, and the movable clamp on the other end of the handle is gap-fitted outside the pipeline.

[0009] As a further improvement of the application, the external strip is further provided with a protruding strip, the protruding strip is provided with two or more than two, and is cross-fixed above the rubber strip, and the rubber strip is arranged inside the sleeve frame; As a further improvement of the application, the rubber strip has stretchability, and is gap-fitted outside the pipeline through the protruding strip and the central shaft, and the sleeve frame at the bottom of the rubber strip is fixedly arranged outside the arch strip.

[0010] As a further improvement of the application, the adjusting assembly is provided with a sleeve block, the sleeve block is a square structure, one side of the sleeve block is sleeved and arranged in the sleeve, the other side of the sleeve block is connected with a connecting rod, and the connecting rod is provided with a fixed point piece through a mounting handle; As a further improvement of the application, the sleeve is vertically inserted into the ring, and a square structure sleeve block is movably sleeved in the middle of the sleeve, which can provide an effective activity space for the crawling movement of the fixed point part.

[0011] As a further improvement of the application, the fixed point part is further provided with a support rod, which is rotatably arranged between the top block and the moving ring, the top block is arranged outside the spacer and the folding pad, and a straight fork is vertically rotatably arranged in the middle of the folding pad, and the moving ring is arranged in the middle of the straight fork. As a further improvement of the application, the straight fork is vertically rotatably arranged between the mounting handle and the folding pad, and the spacer and the folding pad are movably arranged outside the pipeline with the top block, and the gap between the spacer and the folding pad is movably arranged between the mounting handle and the connecting rod.

[0012] Compared with the prior art, the application has the following beneficial effects: 1. After the further improvement of the fixed frame, the pipeline is axially moved above the operation platform through the cooperation of the two fixed frames, the rails and the moving seat, and the fixed frame clamping jaw and the adjusting assembly and the detection probe are cross-connected inside the ring and outside the pipeline, which can be four-claw fixed-point extended to surround and support the fixed detection part of the pipeline, and then the adjusting assembly is used to axially rotate the pipeline to adjust the pipeline to a position suitable for the detection probe to detect the fixed detection part of the pipeline, so that the detection probe can be further close to the fixed detection part of the pipeline for effective detection, and the accurate data of the stress change of the high-temperature pressure pipeline can be obtained faster, and the accurate data can be transmitted to the detection main body for data analysis, thereby improving the stress detection accuracy of the device for the high-temperature pressure pipeline.

[0013] 2. After the further improvement of the clamping jaw, the fixed detection part of the pipeline axially moved into the space between the two rings is expanded outward, which will pull the support and the connecting block downward along the outer circumference of the pipeline and surround the outside of the pipeline, thereby expanding the contact surface to support the pipeline and maintaining the stability of the ring around the fixed detection part of the pipeline, so as to avoid the deviation of the detection main body from the detection part.

[0014] 3. After the further improvement of the adjusting assembly, the fixed detection part of the pipeline is axially rotated and adjusted between the detection probes by the deformation of the adjusting assembly and the fixed point part under the extrusion of the mounting handle and the fixed point part, so as to better detect the stress change of the high-temperature pressure pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure diagram of a volatile organic compound monitoring device for atmospheric environment monitoring.

[0016] Figure 2This is a front view schematic diagram of an improved fixing frame.

[0017] Figure 3 This is a frontal view of a modified gripper structure.

[0018] Figure 4 This is an extended and improved structural diagram viewed from the front.

[0019] Figure 5 This is a side view schematic diagram of the improved external strip structure.

[0020] Figure 6 This is a schematic diagram of the structure after the components have been adjusted and improved, viewed from the front.

[0021] Figure 7 This is a frontal structural diagram of an improved fixed-point component.

[0022] In the diagram: Detection body-1, Fixture-2, Operating platform-3, Base-4, Track-5, Controller-6, Moving seat-7; Circular ring-21, clamping claw-22, lifting rod-23, collar-24, adjusting assembly-25, detection probe-26; Extension handle-221, slide rail-222, vertical rod-223, connecting block-224, bracket-225; External strip-2211, arch strip-2212, movable clip-2213, bonding layer-2214, handle-2215; Raised strip-111, central axis-112, adhesive strip-113, frame-114; Sleeve block-251, mounting handle-252, connecting rod-253, fixing part-254, sleeve-255; Support rod-2541, top block-2542, spacer-2543, straight fork-2544, folding pad-2545, moving ring-2546. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings: Example 1: Figures 1 to 5 As shown: This invention provides a stress detection device for high-temperature pressure pipelines. Its structure includes a detection body 1, a fixed frame 2, an operating platform 3, a base 4, a track 5, a controller 6, and a movable seat 7. The detection body 1 is installed between the fixed frames 2, and the detection body 1 is electrically connected to the controller 6 through the operating platform 3. The controller 6 is located outside the base 4, and the track 5 is provided above the operating platform 3. Its distinguishing feature is: The fixed frame 2 is provided with a circular ring 21, the circular ring 21 is sleeved with a sleeve ring 24, and the inside of the circular ring 21 is provided with a clamping jaw 22, an adjusting assembly 25 and a detection probe 26, and the two clamping jaws 22 are vertically arranged in the inside of the circular ring 21 through the lifting rods 23.

[0024] The clamping jaw 22 is further provided with an extension handle 221, the extension handle 221 is slidingly fitted in the inside of the slide rail 222 through the support 225, the slide rail 222 and the connecting block 224 are vertically movably provided with the vertical rod 223 in the middle part, and the support 225 is rotationally fitted between the extension handle 221 and the vertical rod 223.

[0025] The clamping jaw 22 and the adjusting assembly 25 and the detection probe 26 are staggered and arranged in the inside of the circular ring 21, so that the pipe can be completely surrounded in the inside of the circular ring 21, and the extension handle 221 of the clamping jaw 22 is gap-fitted outside the fixed section of the pipe with the adjusting assembly 25, so that it can walk outside the fixed section of the pipe.

[0026] The detection main body 1 is electrically connected and matched between the fixed frames 2, and the bottom of the fixed frame 2 is provided with a moving seat 7 which is controlled to slide left and right above the operation platform 3 by the controller 6.

[0027] The bottom of the circular ring 21 is fixed with the top of the moving seat 7, and the middle part of the circular ring 21 is vertically inserted with two lifting rods 23 with the clamping jaw 22 as the axis, the end of the lifting rod 23 is provided with the clamping jaw 22, the adjusting assembly 25 and the detection probe 26 are gap-fitted outside the pipe.

[0028] The end of the extension handle 221 is rotationally fitted at one end of the support 225, the other end of the support 225 is hingedly installed at the end of the vertical rod 223, the connecting block 224 is fixedly arranged on the surface of the circular ring 21, the middle part of the slide rail 222 is inserted with two lifting rods 23 and vertical rods 223, and three-point line stable reinforcement support is arranged on the arc-shaped outside of the slide rail 222.

[0029] The extension handle 221 is further provided with an external strip 2211, the external strip 2211 is installed outside the arch strip 2212, the arch strip 2212 is arranged outside the adhering layer 2214 through the movable clamp 2213, and the adhering layer 2214 is arranged inside the handle 2215.

[0030] One end of the handle 2215 is connected with one end of the support 225, and the handle 2215 is slidingly arranged in the inside of the slide rail 222 through the support 225, and the movable clamp 2213 on the other end of the handle 2215 is gap-fitted outside the pipe.

[0031] The outer strip 2211 is further provided with a raised strip 111, which is fixed above the rubber strip 113 by crossing the middle shaft 112, and the rubber strip 113 is arranged inside the frame 114.

[0032] The rubber strip 113 is stretchable, and is matched with the gap between the raised strip 111 and the middle shaft 112 outside the pipeline, and the frame 114 at the bottom of the rubber strip 113 is fixed outside the arch strip 2212.

[0033] The specific functions and operation processes of the embodiment are as follows: In the application, the controller 6 starts the moving seat 7 on the operation platform 3 to drive the fixed frame 2 to move horizontally in the middle of the base 4, and the axial movement of the pipeline is inserted between the two annular rings 21 of the fixed frame 2, so that the handle 2215 at the top of the extension 221 of the clamping jaw 22 can press the arc-shaped structure of the movable clamp 2213 on the outer surface of the fitting layer 2214 to the outside of the pipeline, and the raised strip 111 and the middle shaft 112 in the frame 114 on the outer surface of the movable clamp 2213 can be synchronously stretched on the surface of the rubber strip 113 from the middle to the two ends, so as to change the contact area and pressing force of the rubber strip 113 and the arch strip 2212 with the outer surface of the pipeline, so that the arch strip 2212 can be synchronously stretched on the fitting layer 2214 through the movable clamp 2213 and be pressed on the outside of the pipeline, so that the handle 2215 can be pulled out from the inside of the slide rail 222, and the vertical rod 223 can be pulled out downward along the outer surface of the pipeline, and the two lifting rods 23 and the vertical rod 223 arranged in the middle of the slide rail 222 can be used to support the arc-shaped outer surface of the slide rail 222, so that the handle 2215 can be extended along the outer circumference of the pipeline in the form of four claws, and the upper and lower fixed points can be arranged around the outside of the fixed measurement position of the pipeline, so as to expand the contact surface, support the fixed measurement position of the pipeline, maintain the stable state of the annular ring 21 around the fixed measurement position of the pipeline, and facilitate the subsequent detection between the detection main body 1, and avoid the deviation of the detection main body 1 from the measurement position during stress detection.

[0034] Embodiment 2: Figures 6 to 7 As shown: The application provides a stress detection device for a high-temperature and high-pressure pipeline, The structure comprises an adjusting assembly 25, wherein the adjusting assembly 25 is provided with a square-shaped sleeve block 251, one side of the sleeve block 251 is arranged in the inside of a sleeve 255, the other side of the sleeve block 251 is connected with a connecting rod 253, and the connecting rod 253 is provided with a fixed point 254 through a mounting handle 252.

[0035] The sleeve 255 is vertically inserted and mounted inside the ring 21, and a square structure sleeve block 251 is movably sleeved in the middle of the sleeve 255, which can provide an effective moving space for the crawling movement of the fixed point 254.

[0036] The fixed point 254 is further provided with a support rod 2541, which is rotatably arranged between a top block 2542 and a moving ring 2546, the top block 2542 is arranged outside a spacer 2543 and a folding pad 2545, and the folding pad 2545 is vertically rotatably provided with a straight fork 2544, and the moving ring 2546 is arranged in the middle of the straight fork 2544.

[0037] The straight fork 2544 is vertically rotatable between the mounting handle 252 and the folding pad 2545, the spacer 2543 and the folding pad 2545 are movably matched with the top block 2542 outside the pipe, and the spacer 2543 and the folding pad 2545 are gap matched between the mounting handle 252 and the connecting rod 253.

[0038] The specific functions and operation processes of the embodiment are as follows: In the present application, the fixed to-be-measured part of the pipeline moves axially between the rings 21, which will press the top block 2542 of the support rod 2541 pressed between the mounting handles 252, so that the top block 2542 will rotate reversely with the spacer 2543 and the folding pad 2545 as the fulcrum outside the straight fork 2544, so that the spacer 2543 and the folding pad 2545 will be squeezed and narrowed transversely, and will be longitudinally stretched to a certain limit, which will press the support rod 2541 to support the moving ring 2546 to move upward along the straight fork 2544 and press against the inside of the mounting handle 252, and will also assist the clamping jaw 22 to limit and control the to-be-measured part of the pipeline, and during the squeezing and longitudinal stretching of the spacer 2543 and the folding pad 2545 to a certain limit, the spacer 2543 and the top block 2542 will be attached to the outside of the to-be-measured part of the pipeline, and will be synchronously ground to drive the pipeline to rotate axially between the rings 21, so as to rotate and adjust the to-be-measured part of the pipeline axially between the detection probes 26, so that the detection probes 26 can further approach the to-be-measured part of the pipeline for detection, and better detect the stress change of the high-temperature pressure pipeline, so as to obtain accurate data of the stress change of the high-temperature pressure pipeline, and transmit the accurate data to the detection main body 1 for data analysis, and ensure the accuracy of the stress detection of the device on the high-temperature pressure pipeline.

[0039] The technical solutions of the present application or the technical solutions of the present application are used as inspiration by those skilled in the art to design similar technical solutions to achieve the above technical effects, which are within the protection scope of the present application.

Claims

1. A stress detection apparatus for high temperature pressure piping, the apparatus comprising: The utility model provides a kind of detection main body (1), fixed frame (2), operating platform (3), pedestal (4), track (5), controller (6), moving seat (7), the detection main body (1) is installed between fixed frame (2), and detection main body (1) is electrically connected between operating platform (3) and controller (6), controller (6) is located outside pedestal (4), operating platform (3) is equipped with track (5) above, it is characterized by: The fixed frame (2) is equipped with a circular ring (21), the circular ring (21) is fitted together with a sleeve ring (24), and the circular ring (21) is internally provided with a clamping jaw (22), an adjusting assembly (25) and a detection probe (26), two clamping jaws (22) are vertically arranged inside the circular ring (21) by a lifting rod (23) up and down; The clamping jaw (22) is also provided with an extension handle (221), the extension handle (221) is slidingly fitted inside the slide rail (222) through a support (225), the slide rail (222) and the connecting block (224) are vertically penetrated by a vertical rod (223) in the middle, and the support (225) is rotatably fitted between the extension handle (221) and the vertical rod (223); By the staggered arrangement of the clamping jaw (22), the adjusting assembly (25) and the detection probe (26) inside the circular ring (21), the pipe can be fully surrounded inside the circular ring (21), and the extension handle (221) of the clamping jaw (22) and the adjusting assembly (25) are gap-fitted outside the fixed section of the pipe, so that they can walk outside the fixed section of the pipe.

2. A stress detection device for high temperature pressure piping according to claim 1, characterized by: The detection main body (1) is electrically connected between the fixed frame (2), the fixed frame (2) is provided with a moving seat (7) at the bottom, and the moving seat (7) slides left and right on the operating platform (3) under the control of the controller (6).

3. A stress detection apparatus for high temperature pressure piping according to claim 1, characterized by: The bottom of the circular ring (21) is fixed with the top of the moving seat (7), and the circular ring (21) is symmetrically penetrated by two lifting rods (23) with the clamping jaw (22) as the axis in the middle, the end of the lifting rod (23) is provided with the clamping jaw (22), and the adjusting assembly (25) and the detection probe (26) are gap-fitted outside the pipe.

4. The apparatus for detecting stress of a high-temperature pressure pipe according to claim 1, characterized by: The end of the extension handle (221) is rotatably fitted to one end of the support (225), the other end of the support (225) is hingedly installed at the end of the vertical rod (223), the connecting block (224) is fixedly arranged on the surface of the circular ring (21), and the slide rail (222) is penetrated by two lifting rods (23) and vertical rods (223) in the middle, and three-point line stable reinforcement support is provided on the arc-shaped outer portion of the slide rail (222).

5. The stress detection apparatus for high temperature pressure piping according to claim 1, characterized by: The extension handle (221) is also provided with an external strip (2211), the external strip (2211) is installed outside the arch strip (2212), the arch strip (2212) is provided outside the adhering layer (2214) through the movable clamp (2213), and the adhering layer (2214) is arranged inside the handle (2215); One end of the handle (2215) is connected with one end of the support (225), and the handle (2215) is slidingly arranged inside the slide rail (222) through the support (225), and the movable clamp (2213) on the other end of the handle (2215) is gap-fitted outside the pipe.

6. A stress detection apparatus for high temperature pressure piping according to claim 5, characterized by: The external strip (2211) is also provided with a convex strip (111), which is provided with two or more than two and is fixed above the rubber strip (113) by crossing the central shaft (112), and the rubber strip (113) is arranged inside the frame (114); The rubber strip (113) is matched with the gap between the convex strip (111) and the central shaft (112) outside the pipeline, and the frame (114) at the bottom of the rubber strip (113) is fixed outside the arch strip (2212).

7. The stress detection apparatus for high temperature pressure piping according to claim 1, characterized by: The adjusting assembly (25) is provided with a sleeve block (251), which is a square structure, one side of which is arranged inside the sleeve (255), and the other side of the sleeve block (251) is connected with the connecting rod (253), and the connecting rod (253) is provided with a fixed point piece (254) through the installation handle (252); The sleeve (255) is vertically inserted and embedded in the inside of the circular ring (21), and the sleeve (255) movably sleeves the square structure of the sleeve block (251) in the middle, which can provide an effective moving space for the fixed point piece (254) between them.

8. A stress detection apparatus for high temperature pressure piping according to claim 7, characterized by: The fixed point piece (254) is also provided with a support rod (2541), which is rotatably arranged between the top block (2542) and the moving circular ring (2546), and the top block (2542) is installed outside the spacer (2543) and the folding pad (2545), and the folding pad (2545) is vertically rotatably provided with a straight fork (2544) in the middle, and the straight fork (2544) is installed with the moving circular ring (2546) in the middle; The straight fork (2544) is vertically rotatable between the installation handle (252) and the folding pad (2545), and the spacer (2543) and the folding pad (2545) are movably matched with the top block (2542) outside the pipeline, and the spacer (2543) and the folding pad (2545) are matched with the gap between the installation handle (252) and the connecting rod (253).

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