A pipe expansion detection device

Abstract

The application provides a pipeline expansion detection device, and relates to the technical field of pipeline detection equipment.The pipeline expansion detection device comprises a pipeline body assembly, a mounting mechanism, a clamping and fitting mechanism, a rolling walking mechanism, a first detection mechanism, a second detection mechanism and a wireless controller, a plurality of groups of mounting mechanisms are fixedly installed on the pipeline body assembly at equal intervals along the front-back direction, a plurality of groups of clamping and fitting mechanisms are arranged on each group of mounting mechanisms, a rolling walking mechanism is fixedly arranged at the bottom of each group of clamping and fitting mechanisms, a first detection mechanism is fixedly arranged on the clamping and fitting mechanism, a second detection mechanism is fixedly arranged on the mounting mechanism, and the clamping and fitting mechanism, the rolling walking mechanism, the first detection mechanism and the second detection mechanism are electrically connected with the wireless controller. The application has high adaptability, the clamping and fitting mechanism can be self-adaptively adjusted according to the shape of the pipeline, and the universality and accuracy of detection are improved. The rolling walking mechanism enables the detection device to move along the pipeline, and ensures comprehensive detection of the whole pipeline.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipeline detection equipment, and in particular to a pipeline expansion detection device. BACKGROUND

[0002] In the industrial field, pipelines are often used for the transportation of various fluids, such as oil, steam, water, and gas in the power field. Since the high-temperature and high-pressure flowing medium in the pipeline will transfer its heat to the pipeline, causing it to expand, it is necessary to monitor the expansion of the pipeline. The traditional monitoring method usually uses an expansion indicator, especially in power plants, the expansion indicator is used to monitor the expansion of the back wall pressure vessel and the pipeline during the ignition and pressure increase process. Through the expansion indicator, the deformation of the evaporation equipment caused by improper ignition and pressure increase or poor installation and maintenance can be found in time, thereby preventing cracks and leaks caused by uneven expansion.

[0003] However, with the development of industrial technology and the improvement of safety requirements, the traditional expansion indicator and its monitoring method have been difficult to meet the accuracy and efficiency requirements of modern industry for pipeline expansion monitoring.

[0004] The traditional expansion indicator usually adopts a mechanical structure, and the pointer is prone to jamming and deformation, thereby affecting the accuracy of measurement. The existing scheme usually requires manual inspection and data recording, which is labor-intensive and prone to errors. The amount of pipeline expansion and contraction needs to be determined by experience, increasing the subjectivity and uncertainty of judgment. Maintenance is inconvenient, the traditional expansion indicator is arranged dispersedly, and the measurement point position of the corresponding pipeline needs to be found during recording, increasing the difficulty and cost of maintenance. The existing detection device is fixed for monitoring and cannot be used for mobile detection of pipelines. SUMMARY

[0005] The present application provides a pipeline expansion detection device to solve at least one of the technical problems in the background art.

[0006] To solve the above technical problems, the present application provides a pipeline expansion detection device, comprising: a pipeline body assembly, a mounting mechanism, a clamping and fitting mechanism, a rolling walking mechanism, a first detection mechanism, a second detection mechanism, and a wireless controller. The pipeline body assembly is fixedly installed with a plurality of groups of mounting mechanisms at equal intervals in the front-rear direction. Each group of mounting mechanisms is fixedly installed with a plurality of groups of clamping and fitting mechanisms. Each group of clamping and fitting mechanisms is fixedly provided with a rolling walking mechanism at the bottom. The clamping and fitting mechanism is fixedly provided with a first detection mechanism. The mounting mechanism is fixedly provided with a second detection mechanism. The clamping and fitting mechanism, the rolling walking mechanism, the first detection mechanism, and the second detection mechanism are electrically connected with the wireless controller.

[0007] Preferably, the pipeline body assembly comprises: a bottom plate and pipeline supports, the bottom plate is fixedly installed with a plurality of pipeline supports in front and back intervals on the top, and the pipeline supports are fixedly installed with the pipeline to be tested in the front and back directions.

[0008] Preferably, the mounting mechanism comprises: an upper semicircular mounting assembly and a lower semicircular mounting assembly.

[0009] The upper semicircular mounting assembly comprises: a pair of mounting plates I which are symmetrically arranged on the left and right sides of the pipeline to be tested in the front and back directions, a semicircular support I which is fixedly connected to the top of the left and right mounting plates I, and an installation hole which is fixedly provided on the semicircular support I along the direction of the semicircular support I.

[0010] The lower semicircular mounting assembly is symmetrically arranged above the upper semicircular mounting assembly, and the lower semicircular mounting assembly is fixedly connected to the upper semicircular mounting assembly through mounting bolts.

[0011] Preferably, three sets of clamping and fitting mechanisms are fixedly arranged on the semicircular support I in three equal parts, and the clamping and fitting mechanism on the top comprises: a sleeve I which is fixedly installed on the vertical sleeve I on the installation hole on the top of the semicircular support I, a box I which is fixedly installed on the top of the sleeve I, a bottom wall of the sleeve I which is fixedly penetrated through the box I, a vertical rod I which is slidingly connected inside the sleeve I, a vertical servo motor I which is fixedly installed on the top of the box I, a lead screw I which is rotatably connected inside the box I, an output shaft end of the servo motor I which is fixedly connected to the top end of the lead screw I, the servo motor I which is electrically connected to the storage battery, and an inner threaded sleeve which is threadedly connected to the lead screw I, and the inner threaded sleeve is fixedly connected to the right end of the top of the vertical rod I.

[0012] Preferably, the rolling walking mechanism comprises: a rolling support which is fixedly installed on the bottom of the vertical rod I, a rotating roller which is rotatably connected to the rolling support, the bottom of the rotating roller which is tightly pressed against the surface of the pipeline to be tested, a belt pulley I which is fixedly connected to the right end of the rotating roller, a walking motor which is fixedly installed on the rolling support, a belt pulley II which is fixedly connected to the output shaft end of the walking motor, and the belt pulley II and the belt pulley I are connected through a belt I.

[0013] Preferably, the first detection mechanism comprises: a limiting plate which is fixedly connected to the middle part of the vertical rod I, a horizontal plate I which is slidingly connected to the vertical rod I below the limiting plate, a spring I which is sleeved outside the vertical rod I between the limiting plate and the horizontal plate I, a pair of strip hole plates which are hingedly connected to the top of the horizontal plate I and symmetrically arranged on the left and right sides, the strip hole plates are fixedly installed in the strip holes through fixed bolts, vertical sleeves II which are fixedly installed on the left and right ends of the horizontal plate I, and a micrometer scale which is slidingly connected inside the vertical sleeve II.

[0014] Preferably, the top of the micrometer scale is fixedly connected to the counterweight, the strip orifice plate is fixedly installed with motor 2, the output shaft end of motor 2 is fixedly connected to the winding roller, the winding roller is fixedly wound with a traction rope, the other end of the traction rope is fixedly connected to the top of the counterweight, and a number of pan-tilt cameras are fixedly installed on the semicircular bracket 1, and the pan-tilt cameras are used to record and monitor image information of the micrometer scale and the pipeline to be tested.

[0015] Preferably, the second detection mechanism includes: a laser sensor, a pair of laser sensors are fixedly installed on the left and right ends of the semicircular bracket one, the laser sensor is used to detect and record the size information of the pipeline in the horizontal direction, a pair of ranging sensors are fixedly installed symmetrically on the left and right front ends of each horizontal plate one, the ranging sensor is used to detect the radial size of the pipeline to be tested, and a height sensor is fixedly installed on the middle end of the mounting plate one away from the semicircular bracket one, the height sensor is used to detect and record the height information of the mounting plate one from the bottom plate.

[0016] Preferably, an intelligent monitoring abnormality alarm module is also provided, and the intelligent monitoring abnormality alarm module includes:

[0017] Temperature detection unit 1, used to detect the working temperature of the surface of the pipeline to be tested;

[0018] Temperature detection unit 2, used for dynamically detecting and recording the ambient temperature when the pipeline expansion detection device is in operation;

[0019] The first calculation unit is used to calculate the stress state coefficient of the pipe wall in the expansion area of ​​the pipeline to be tested;

[0020] The second calculation unit is used to calculate the pipeline expansion abnormality assessment coefficient;

[0021] Intelligent identification and judgment unit, used to identify and compare the pipeline expansion abnormality assessment coefficient and the theoretical expansion normal threshold;

[0022] Alarm, used to respond to abnormal situations;

[0023] The control unit is used to centrally collect data from the temperature detection unit 1, the temperature detection unit 2, the alarm, the pan-tilt camera and the laser sensor, and control the first calculation unit and the second calculation unit to calculate.

[0024] Preferably, the steps of intelligent monitoring abnormality alarm include:

[0025] Step 1: The control unit calculates the stress state coefficient of the pipe wall in the expansion area of ​​the pipeline to be tested according to the following formula (1) through the first calculation unit;

[0026] (1); among them, is the stress state coefficient of the pipe wall in the expansion area of ​​the tested pipe, is the theoretical material yield strength of the pipeline to be tested, is half the length of the crack in the expansion area of ​​the pipe, is the longitudinal elastic modulus of the pipeline to be tested, is the value of pi, which is 3.14. is a logarithmic function, is the secant function, The value of the natural constant is 2.72, is the length of the pipe expansion zone detected during time period t, is the detection time period, is the equivalent diameter of the pipe to be measured, is the wall thickness of the pipe to be measured, is the maximum operating temperature of the surface of the pipeline to be tested detected by the temperature detection unit 1, is the minimum operating temperature of the surface of the pipeline to be tested detected by the temperature detection unit 1, The average ambient temperature value of the pipeline expansion detection device during operation detected by the temperature detection unit 2, The temperature detection unit 1 detects the initial temperature value of the surface of the pipeline to be tested;

[0027] Step 2: The control unit calculates the pipeline expansion abnormality assessment coefficient according to the following formula (2) through the second calculation unit;

[0028] (2); in which: is the pipeline expansion anomaly assessment coefficient, n is the number of pipeline expansion areas to be tested, is the theoretical burst failure pressure of the pipeline to be tested, is the ultimate tensile strength of the pipe to be tested, is the ultimate internal pressure load of the pipeline to be tested, is the first length value of the expansion area, , is the second length value of the expansion area, ; The distance change value detected by the laser sensor;

[0029] Step 3: The intelligent identification and judgment unit compares the pipeline expansion abnormality assessment coefficient with the theoretical expansion normal threshold. When the maximum value of the theoretical expansion threshold is exceeded, the control unit controls the alarm to sound an alarm. When it is lower than the theoretical expansion normal threshold, the control unit only needs to record the position of the expansion area and the alarm will not respond.

[0030] Compared with the prior art, the beneficial effects of the present application are: the present application provides a pipeline expansion detection device, through the installation mechanism, the clamping and fitting mechanism, the rolling walking mechanism, the first detection mechanism, the second detection mechanism and other components are fixed on the pipeline body assembly. As the core, the wireless controller receives and processes signals from various detection mechanisms, realizing real-time monitoring of pipeline expansion. The clamping and fitting mechanism can be adjusted according to the actual situation of the pipeline through servo motor and other driving components, ensuring the accuracy of detection. The rolling walking mechanism enables the detection device to move along the pipeline surface, realizing detection of the entire pipeline.

[0031] Beneficial effects:

[0032] High degree of automation: through the centralized control of the wireless controller, the automatic detection of pipeline expansion is realized.

[0033] Strong adaptability: the clamping and fitting mechanism can be self-adapted according to the shape of the pipeline, improving the universality and accuracy of detection.

[0034] Comprehensive detection: the rolling walking mechanism enables the detection device to move along the pipeline, ensuring comprehensive detection of the entire pipeline. BRIEF DESCRIPTION OF DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0036] Figure 1 is a front view of a pipeline expansion detection device of the present application;

[0037] Figure 2 is a left side view of a pipeline expansion detection device of the present application;

[0038] Figure 3 is a front view of the clamping and fitting mechanism and the first detection mechanism at the top of the present application.

[0039] Reference signs:

[0040] 1, pipeline body assembly; 2, mounting mechanism; 3, clamping and fitting mechanism; 4, rolling walking mechanism; 5, first detection mechanism; 6, second detection mechanism; 7, wireless controller; 8, bottom plate; 9, pipeline support; 10, pipeline to be detected; 11, upper semicircle mounting assembly; 12, lower semicircle mounting assembly; 13, mounting plate one; 14, semicircle support one; 15, mounting hole; 16, mounting bolt; 17, sleeve one; 18, box one; 19, vertical rod one; 20, servo motor one; 21, lead screw one; 22, internal thread sleeve; 23, storage battery; 24, rolling support; 25, rotating roller; 26, pulley one; 27, walking motor; 28, pulley two; 29, belt one; 30, limiting plate; 31, horizontal plate one; 32, spring one; 33, strip-shaped hole plate; 34, fixing bolt; 35, sleeve two; 36, micrometer scale; 37, counterweight; 38, motor two; 39, winding roller; 40, traction rope; 41, pan-tilt camera; 42, laser sensor; 43, distance measuring sensor; 44, height sensor. DETAILED DESCRIPTION

[0041] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0042] The preferred embodiments of the present application will be described below with reference to the drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0043] In addition, the description such as "first", "second" and the like in the present application is only for the purpose of description, and does not mean to specially indicate the order or sequence, nor to limit the present application. It is only to distinguish the components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features of various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope of the present application.

[0044] The present application provides the following embodiments

[0045] Embodiment 1

[0046] The embodiment of the present invention provides a pipeline expansion detection device, such as Figure 1 As shown, it includes: a pipe body component 1, a mounting mechanism 2, a clamping and fitting mechanism 3, a rolling walking mechanism 4, a first detection mechanism 5, a second detection mechanism 6 and a wireless controller 7. The pipe body component 1 is fixed with several groups of mounting mechanisms 2 at equal intervals in the front-to-back direction on the outer edge. Each group of mounting mechanisms 2 has several groups of clamping and fitting mechanisms 3. A rolling walking mechanism 4 is fixed at the bottom of each group of clamping and fitting mechanisms 3. The first detection mechanism 5 is fixed on the clamping and fitting mechanism 3. The second detection mechanism 6 is fixed on the mounting mechanism 2. The clamping and fitting mechanism 3, the rolling walking mechanism 4, the first detection mechanism 5 and the second detection mechanism 6 are electrically connected to the wireless controller 7 respectively.

[0047] The working principle and beneficial effects of the above technical solution are:

[0048] Working Principle: The pipeline expansion detection device provided by the present invention secures components, including a clamping mechanism 3, a rolling mechanism 4, a first detection mechanism 5, and a second detection mechanism 6, to a pipeline body assembly 1 via a mounting mechanism 2. A wireless controller 7 serves as the core, receiving and processing signals from each detection mechanism to enable real-time monitoring of pipeline expansion. The clamping mechanism 3, driven by servo motors and other components, adjusts the fit based on the actual pipeline conditions, ensuring accurate detection. The rolling mechanism 4 enables the detection device to move along the pipeline surface, enabling inspection of the entire pipeline.

[0049] Pipeline body component 1: As the detection object, several groups of installation mechanisms 2 are installed at equal intervals on its outer edge.

[0050] Mounting mechanism 2: used to fix the clamping and fitting mechanism 3, rolling travel mechanism 4 and other components to ensure that they can act stably on the pipe surface.

[0051] Clamping and fitting mechanism 3: Through driving devices such as servo motors, it achieves tight fitting of the pipe to adapt to pipes of different diameters and shapes.

[0052] Rolling travel mechanism 4: enables the detection device to move smoothly along the surface of the pipeline to achieve continuous detection of the entire pipeline.

[0053] The first detection mechanism 5 and the second detection mechanism 6 are respectively used to measure the expansion of the pipeline and other relevant parameters.

[0054] Wireless controller 7: As the core of the entire device, it is responsible for receiving and processing signals from various detection agencies, performing data analysis and making corresponding decisions.

[0055] Beneficial effects:

[0056] High automation: through the centralized control of the wireless controller 7, the automatic monitoring of the pipe expansion is realized, the manual intervention is reduced, and the detection efficiency is improved.

[0057] Strong adaptability: the clamping and fitting mechanism 3 can adapt to pipes of different diameters and shapes, improving the versatility and practicality of the device.

[0058] Comprehensive detection: the rolling walking mechanism 4 enables the detection device to move along the pipe, ensuring comprehensive detection of the entire pipe and avoiding missed and false detections.

[0059] Embodiment 2

[0060] Based on embodiment 1, as shown in Figures 1-3 The pipe body assembly 1 includes a bottom plate 8 and pipe supports 9, the bottom plate 8 has a plurality of pipe supports 9 fixedly installed on the top in front and back, and the pipe supports 9 have a to-be-detected pipe 10 fixedly installed in the front and back direction.

[0061] The mounting mechanism 2 includes an upper semicircular mounting assembly 11 and a lower semicircular mounting assembly 12.

[0062] The upper semicircular mounting assembly 11 includes a pair of mounting plates one 13 symmetrically arranged on the left and right of the to-be-detected pipe 10 in the front and back direction, and a semicircular support one 14 fixedly connected to the top of the left and right mounting plates one 13, and an installation hole 15 is fixedly provided on the semicircular support one 14 along the direction thereof.

[0063] The lower semicircular mounting assembly 12 is symmetrically arranged above the upper semicircular mounting assembly 11, and the lower semicircular mounting assembly 12 is fixedly connected to the upper semicircular mounting assembly 11 through mounting bolts 16.

[0064] The semicircular support one 14 is fixedly provided with three sets of clamping and fitting mechanisms 3 at three equal parts, and the clamping and fitting mechanism 3 at the top includes a sleeve one 17, a box one 18, a vertical rod one 19, a servo motor one 20, a lead screw one 21, an internal thread sleeve 22, and a battery 23.

[0065] The working principle and beneficial effects of the above technical solution are as follows:

[0066] Working principle:

[0067] Based on Example 1, this embodiment further optimizes the mounting mechanism 2 and the clamping and fitting mechanism 3. The mounting mechanism 2 utilizes upper and lower semicircular mounting assemblies 12, which are fixed together by mounting bolts 16 to form a complete mounting frame. The clamping and fitting mechanism 3 uses a servo motor to drive a lead screw to achieve a tight fit with the pipe 10 to be tested.

[0068] The upper and lower semicircular mounting components 12 improve the stability of the mounting frame and facilitate precise adjustment of the clamping and fitting mechanism 3.

[0069] Servo motor drives the lead screw: it realizes precise control of the clamping and fitting mechanism 3, and can make adaptive adjustments according to the actual situation of the pipeline to ensure the accuracy of the detection.

[0070] Beneficial effects:

[0071] More stable installation: The design of the upper and lower semicircular mounting components 12 improves the stability of the mounting frame and reduces errors caused by vibration or external interference.

[0072] More precise adjustment: The design of the servo motor driving the lead screw enables the clamping and fitting mechanism 3 to perform adaptive adjustment according to the actual situation of the pipeline, thereby improving the accuracy and reliability of the detection.

[0073] Example 3

[0074] On the basis of Example 2, Figures 1-3 As shown, the rolling walking mechanism 4 includes: a rolling bracket 24, a rolling bracket 24 is fixedly installed at the bottom of the vertical rod 19, the rolling bracket 24 is rotatably connected to the rotating roller 25, the bottom of the rotating roller 25 is pressed against the surface of the pipeline 10 to be measured, and the right end of the rotating roller 25 is fixedly connected to the pulley 1 26, and a walking motor 27 is fixedly installed on the rolling bracket 24, and the output shaft end of the walking motor 27 is fixedly connected to the pulley 2 28, and the pulley 28 is connected to the pulley 1 26 through a belt 1 29.

[0075] The first detection mechanism 5 includes: a limit plate 30, the middle part of the vertical rod 19 is fixedly connected to the limit plate 30, the vertical rod 19 is slidably connected to a horizontal plate 31 below the limit plate 30, the vertical rod 19 between the horizontal plate 31 and the limit plate 30 is sleeved with a spring 32 on the outside, the top of the horizontal plate 31 is symmetrically hinged to a pair of strip orifice plates 33, the top of the strip orifice plates 33 is fixedly installed in the strip holes by fixing bolts 34, the left and right ends of the horizontal plate 31 are symmetrically fixed with vertical sleeves 35, and the sleeves 35 are slidably connected to a micrometer scale 36 up and down.

[0076] The top end of the micrometer scale 36 is fixedly connected with the counterweight 37, the bar-shaped hole plate 33 is fixedly installed with the motor two 38, the output shaft end of the motor two 38 is fixedly connected with the winding roller 39, the winding roller 39 is fixedly wound with the traction rope 40, the other end of the traction rope 40 is fixedly connected with the top end of the counterweight 37, the semicircular support one 14 is fixedly installed with a plurality of gimbal cameras 41, and the gimbal cameras 41 are used to record the image information of the micrometer scale 36 and the pipeline 10 to be detected.

[0077] The working principle and beneficial effects of the above technical solution are as follows:

[0078] Working principle:

[0079] The embodiment is further improved on the rolling walking mechanism 4 and the first detection mechanism 5. The rolling walking mechanism 4 realizes the stable movement of the detection device along the surface of the pipeline through the design of the rotating roller 25 and the walking motor 27. The first detection mechanism 5 can accurately measure the expansion of the pipeline through the design of the micrometer scale 36 and the counterweight 37.

[0080] Rotating roller 25 and walking motor 27: make the detection device move smoothly along the surface of the pipeline, avoid errors caused by friction or jamming.

[0081] Micrometer scale 36 and counterweight 37: through the weight of the counterweight 37, the micrometer scale 36 can accurately measure the expansion of the pipeline.

[0082] Beneficial effects:

[0083] More stable movement: the design of the rotating roller 25 and the walking motor 27 makes the detection device move smoothly along the surface of the pipeline, improves the continuity and accuracy of detection.

[0084] More accurate measurement: the design of the micrometer scale 36 and the counterweight 37 improves the accuracy and stability of measurement, provides reliable data support for subsequent data analysis.

[0085] Example 4

[0086] On the basis of example 2, such as Figure 1 , Figure 3As shown, the second detection mechanism 6 includes: a pair of laser sensors 42 fixedly installed on the left and right ends of the semicircular bracket one 14, which are used to detect the size information of the pipeline in the horizontal direction; a pair of distance measuring sensors 43 fixedly installed on the front end of each horizontal plate one 31 symmetrically, which are used to detect the radial size of the pipeline 10; and a height sensor 44 fixedly installed on the middle of the mounting plate one 13 away from the semicircular bracket one 14, which is used to detect the height information of the mounting plate one 13 from the bottom plate 8.

[0087] The working principle and beneficial effects of the above technical solution are as follows:

[0088] Working principle:

[0089] This embodiment introduces the second detection mechanism 6, which realizes real-time detection of the size information of the pipeline in the horizontal and radial directions through components such as laser sensors 42 and distance measuring sensors 43. At the same time, the height sensor 44 is used to detect the height information of the mounting plate one 13 from the bottom plate 8, providing comprehensive data support for the expansion of the pipeline.

[0090] Laser sensors 42 and distance measuring sensors 43: can real-time detect the size change of the pipeline in the horizontal and radial directions, providing an important basis for evaluating the expansion of the pipeline.

[0091] Height sensor 44: used to detect the height information of the mounting plate one 13 from the bottom plate 8, providing a reference for judging the deformation degree of the pipeline.

[0092] Beneficial effects:

[0093] More comprehensive data: the introduction of the second detection mechanism 6 makes the detection data more comprehensive, providing more information support for subsequent data analysis and processing.

[0094] More accurate evaluation: through the comprehensive action of laser sensors 42, distance measuring sensors 43 and height sensors 44, the expansion of the pipeline can be more accurately evaluated, improving the accuracy and reliability of the detection.

[0095] Embodiment 5

[0096] On the basis of embodiment 2, an intelligent monitoring abnormal alarm module is further provided, which includes:

[0097] Temperature detection unit one for detecting the working temperature of the surface of the pipeline 10;

[0098] Temperature detection unit two for dynamically detecting the environmental temperature when the pipeline expansion detection device is running;

[0099] The first calculation unit is used to calculate the stress state coefficient of the pipe wall in the expansion area of ​​the pipe to be tested 10;

[0100] The second calculation unit is used to calculate the pipeline expansion abnormality assessment coefficient;

[0101] Intelligent identification and judgment unit, used to identify and compare the pipeline expansion abnormality assessment coefficient and the theoretical expansion normal threshold;

[0102] Alarm, used to respond to abnormal situations;

[0103] The control unit is used to centrally collect data from the temperature detection unit 1, the temperature detection unit 2, the alarm, the pan-tilt camera 41 and the laser sensor 42, and control the first calculation unit and the first calculation unit to calculate.

[0104] Preferably, the steps of intelligent monitoring abnormality alarm include:

[0105] Step 1: The control unit calculates the stress state coefficient of the pipe wall in the expansion area of ​​the pipe to be tested 10 according to the following formula (1) through the first calculation unit;

[0106] (1); among them, is the stress state coefficient of the pipe wall in the expansion area of ​​the tested pipe 10, is the theoretical material yield strength of the pipeline 10 to be tested, is half the length of the crack in the expansion area of ​​the pipe, is the longitudinal elastic modulus of the pipeline 10 to be tested, is the value of pi, which is 3.14. is a logarithmic function, is the secant function, The value of the natural constant is 2.72, is the length of the pipe expansion zone detected during time period t, is the detection time period, is the equivalent diameter of the pipe 10 to be tested, is the wall thickness of the pipe 10 to be tested, is the maximum operating temperature of the surface of the pipeline 10 to be tested detected by the temperature detection unit 1, is the minimum operating temperature of the surface of the pipe 10 to be tested detected by the temperature detection unit 1, The average ambient temperature value of the pipeline expansion detection device during operation detected by the temperature detection unit 2, The temperature detection unit 1 detects the initial temperature value of the surface of the pipeline 10 to be tested;

[0107] Step 2: The control unit calculates the pipeline expansion abnormality assessment coefficient according to the following formula (2) through the second calculation unit;

[0108] (2); wherein: is the pipeline expansion anomaly evaluation coefficient, n is the number of expansion regions of the pipeline 10 to be tested, is the theoretical burst failure pressure of the pipeline 10 to be tested, is the ultimate tensile strength of the pipeline 10 to be tested, is the ultimate internal pressure load of the pipeline 10 to be tested, is the first length value of the expansion region, , is the second length value of the expansion region, ; is the distance change value detected by the laser sensor 42;

[0109] Step 3: The intelligent recognition and judgment unit compares the pipeline expansion anomaly evaluation coefficient with the theoretical expansion normal threshold value. When the maximum value exceeds the theoretical expansion normal threshold value, the control unit controls the alarm to alarm, and when is lower than the theoretical expansion normal threshold value, the control unit only needs to record the expansion region position, and the alarm does not respond.

[0110] The working principle and beneficial effects of the above technical solution are as follows:

[0111] Working principle:

[0112] Based on the foregoing, the embodiment integrates an intelligent monitoring and abnormal alarm module. The module realizes real-time monitoring and early warning of pipeline expansion through temperature detection unit, calculation unit, intelligent recognition and judgment unit, alarm and other components.

[0113] Temperature detection unit: used for detecting the working temperature and environmental temperature of the pipeline and providing data support for the calculation unit.

[0114] Calculation unit: according to the preset algorithm and formula, the pipeline expansion anomaly evaluation coefficient and other parameters are calculated.

[0115] Intelligent recognition and judgment unit: compare the calculated evaluation coefficient with the theoretical expansion normal threshold value to determine whether the pipeline has abnormal expansion.

[0116] Alarm: when detecting abnormal expansion, timely issue a warning signal to remind relevant personnel to handle.

[0117] Beneficial effects:

[0118] Early warning is more timely: the intelligent monitoring and abnormal alarm module can monitor the expansion of the pipeline in real time, and timely issue a warning signal when detecting abnormality, improving safety.

[0119] The evaluation is more intelligent: through the comprehensive action of the calculation unit and the intelligent identification judgment unit, the expansion condition of the pipeline can be more accurately evaluated, and the accuracy and reliability of the evaluation are improved.

[0120] The operation is more simple: the wireless controller 7 centrally collects and processes data, simplifies the operation process, and reduces the technical requirements for the operator.

[0121] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit it; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A pipeline expansion detection device, characterized in that: include: A pipe body component (1), a mounting mechanism (2), a clamping and fitting mechanism (3), a rolling mechanism (4), a first detection mechanism (5), and a second detection mechanism (6); a plurality of mounting mechanisms (2) are fixedly mounted on the outer edge of the pipe body component (1) at equal intervals in the front-to-back direction; a plurality of clamping and fitting mechanisms (3) are mounted on each mounting mechanism (2); a rolling mechanism (4) is fixedly mounted on the bottom of each clamping and fitting mechanism (3); a first detection mechanism (5) is fixedly mounted on the clamping and fitting mechanism (3); and a second detection mechanism (6) is fixedly mounted on the mounting mechanism (2); The mounting mechanism (2) includes: an upper semicircular mounting assembly (11) and a lower semicircular mounting assembly (12); the upper semicircular mounting assembly (11) includes: a pair of mounting plates (13) symmetrically arranged along the front-back direction on the left and right sides of the pipe to be tested (10); the tops of the left and right mounting plates (13) are fixedly connected to a semicircular bracket (14); the semicircular bracket (14) is fixedly provided with a mounting hole (15) along its direction; The semicircular bracket (14) is fixedly provided with three sets of clamping and fitting mechanisms (3) in three equal parts, and the clamping and fitting mechanism (3) at the top includes: a sleeve (17), a vertical sleeve (17) is fixedly installed on the mounting hole (15) at the top of the semicircular bracket (14), a box (18) is fixedly installed on the top of the sleeve (17), the sleeve (17) is fixedly passed through the bottom wall of the box (18), and the sleeve (17) is slidably connected to a vertical rod (19) in the upper and lower parts; The first detection mechanism (5) includes: a limit plate (30), the middle part of the vertical rod (19) is fixedly connected to the limit plate (30), the vertical rod (19) is located below the limit plate (30) and is slidably connected to the horizontal plate (31), the vertical rod (19) between the horizontal plate (31) and the limit plate (30) is provided with a spring (32) on the outside, the top of the horizontal plate (31) is symmetrically hinged to a pair of strip hole plates (33), the top of the strip hole plates (33) is fixedly installed in the strip hole by fixing bolts (34), the left and right ends of the horizontal plate (31) are symmetrically fixed with vertical sleeves (35), and the sleeves (35) are slidably connected to the micrometer scale (36) up and down; A plurality of pan-tilt cameras (41) are fixedly mounted on the semicircular bracket (14), and the pan-tilt cameras (41) are used to record and monitor image information of the micrometer scale (36) and the pipeline (10) to be measured; The second detection mechanism (6) comprises: a laser sensor (42), a pair of laser sensors (42) are fixedly mounted on the left and right ends of the semicircular bracket (14), the laser sensor (42) is used to detect and record the size information of the pipeline in the horizontal direction, a pair of distance sensors (43) are fixedly mounted symmetrically on the left and right front ends of each horizontal plate (31), the distance sensors (43) are used to detect the radial size of the pipeline (10) to be detected, and a height sensor (44) is fixed on the middle of the mounting plate (13) away from the end of the semicircular bracket (14), the height sensor (44) is used to detect and record the height information of the mounting plate (13) from the bottom plate (8); The steps of intelligent monitoring abnormal alarm include: Step 1: The control unit calculates the stress state coefficient of the pipe wall in the expansion area of ​​the pipe to be tested (10) through the first calculation unit according to the following formula (1); （1）； in, is the stress state coefficient of the pipe wall in the expansion area of ​​the pipe to be tested (10), is the theoretical material yield strength of the pipeline (10) to be tested, is half the length of the crack in the expansion area of ​​the pipe, is the longitudinal elastic modulus of the pipeline (10) to be tested, is the value of pi, which is 3.

14. is a logarithmic function, is the secant function, The value of the natural constant is 2.72, is the length of the pipe expansion zone detected during time period t, is the detection time period, is the equivalent diameter of the pipe to be tested (10), is the wall thickness of the pipe (10) to be tested, is the maximum operating temperature of the surface of the test pipe (10) detected by the temperature detection unit 1, is the minimum operating temperature of the surface of the test pipe (10) detected by the temperature detection unit 1, The average ambient temperature value of the pipeline expansion detection device during operation detected by the temperature detection unit 2, The temperature detection unit 1 detects the initial temperature value of the surface of the pipeline (10) to be tested; Step 2: The control unit calculates the pipeline expansion abnormality assessment coefficient according to the following formula (2) through the second calculation unit; （2）； in: is the pipeline expansion anomaly assessment coefficient, n is the number of expansion areas of the pipeline to be tested (10), is the theoretical burst failure pressure of the pipeline (10) to be tested, is the ultimate tensile strength of the pipeline (10) to be tested, is the ultimate internal pressure load of the pipeline (10) to be tested, is the first length value of the expansion area, , is the second length value of the expansion area, ; A distance change value detected by a laser sensor (42); Step 3: The intelligent identification and judgment unit compares the pipeline expansion abnormality assessment coefficient with the theoretical expansion normal threshold. When the maximum value of the theoretical expansion threshold is exceeded, the control unit controls the alarm to sound an alarm. When the theoretical expansion threshold is not exceeded, the control unit only needs to record the position of the expansion area, and the alarm will not respond.

2. A pipeline expansion detection device according to claim 1, characterized in that: The detection device further comprises a wireless controller (7); the clamping and fitting mechanism (3), the rolling walking mechanism (4), the first detection mechanism (5), and the second detection mechanism (6) are respectively electrically connected to the wireless controller (7); the pipeline body component (1) comprises: a base plate (8) and a pipeline bracket (9); a plurality of pipeline brackets (9) are fixedly installed at intervals in front and back on the top of the base plate (8); and a pipeline (10) to be detected is fixedly installed on the pipeline bracket (9) along the front and back directions.

3. A pipeline expansion detection device according to claim 2, characterized in that: The structures of the lower semicircular mounting assembly (12) and the upper semicircular mounting assembly (11) are symmetrical in vertical direction, and the lower semicircular mounting assembly (12) and the upper semicircular mounting assembly (11) are fixedly connected via mounting bolts (16).

4. A pipeline expansion detection device according to claim 3, characterized in that: The clamping mechanism at the top also includes: a vertical servo motor (20) is fixedly installed on the top of the box body (18), a screw (21) is rotatably connected inside the box body (18), the top end of the screw (21) is fixedly connected to the output shaft end of the servo motor (20), the servo motor (20) is electrically connected to the storage battery (23), the screw (21) is threadedly connected to the internal threaded sleeve (22), and the internal threaded sleeve (22) is fixedly connected to the right end of the top of the vertical rod (19).

5. A pipeline expansion detection device according to claim 4, characterized in that: The rolling walking mechanism (4) comprises: a rolling bracket (24), a rolling bracket (24) fixedly mounted on the bottom of a vertical rod (19), the rolling bracket (24) rotatably connected to a rotating roller (25), the bottom of the rotating roller (25) pressing against the surface of the pipeline (10) to be measured, the right end of the rotating roller (25) fixedly connected to a pulley (26), a walking motor (27) fixedly mounted on the rolling bracket (24), the output shaft end of the walking motor (27) fixedly connected to a pulley (28), and the pulley (28) and the pulley (26) are connected via a belt (29).

6. A pipeline expansion detection device according to claim 5, characterized in that: The top end of the micrometer scale (36) is fixedly connected to a counterweight (37), a second motor (38) is fixedly installed on the strip orifice plate (33), an output shaft end of the second motor (38) is fixedly connected to a winding roller (39), a traction rope (40) is fixedly wound on the winding roller (39), and the other end of the traction rope (40) is fixedly connected to the top end of the counterweight (37).

7. A pipeline expansion detection device according to claim 4, characterized in that: There is also an intelligent monitoring abnormality alarm module, which includes: Temperature detection unit 1, used for detecting the operating temperature of the surface of the pipeline (10) to be tested; Temperature detection unit 2, used for dynamically detecting and recording the ambient temperature when the pipeline expansion detection device is in operation; A first calculation unit is used to calculate a stress state coefficient of a pipe wall in an expansion region of a pipe to be tested (10); The second calculation unit is used to calculate the pipeline expansion abnormality assessment coefficient; Intelligent identification and judgment unit, used to identify and compare the pipeline expansion abnormality assessment coefficient and the theoretical expansion normal threshold; Alarm, used to respond to abnormal situations; The control unit is used for centrally collecting data from the first temperature detection unit, the second temperature detection unit, the alarm, the pan-tilt camera (41) and the laser sensor (42), and controlling the first calculation unit and the second calculation unit to perform calculations.

Images