Pipeline expansion detection device

Abstract

The invention 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, mounting mechanisms, a clamping and fitting mechanism, a rolling walking mechanism, a first detection mechanism, a second detection mechanism and a wireless controller, and a plurality of groups of mounting mechanisms are fixedly mounted on the outer edge of the pipeline body assembly at equal intervals in the front-back direction; a plurality of groups of clamping and laminating mechanisms are arranged on each group of mounting mechanism, a rolling walking mechanism is fixedly arranged at the bottom of each group of clamping and laminating mechanism, a first detection mechanism is fixedly arranged on each clamping and laminating mechanism, and a second detection mechanism is fixedly arranged on each mounting mechanism; the clamping and attaching mechanism, the rolling walking mechanism, the first detection mechanism and the second detection mechanism are electrically connected with the wireless controller, the adaptability is high, the clamping and attaching mechanism can conduct self-adaptive adjustment according to the shape of a pipeline, and the universality and accuracy of detection are improved. And the rolling walking mechanism enables the detection device to move along the pipeline, so that comprehensive detection of the whole pipeline is ensured.

Description

Technical Field

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

[0002] Pipelines are commonly used in the industrial field to transport 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 own heat to the pipeline, causing it to expand due to heat, it is necessary to monitor the expansion of the pipeline. Traditional monitoring methods usually use expansion indicators, especially in power plants, where expansion indicators are used to monitor the expansion of the pressure vessel and pipeline on the rear wall of the boiler during ignition and pressure increase. Through the expansion indicator, deformation of the evaporation equipment caused by improper ignition and pressure increase or poor installation and maintenance can be discovered 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, traditional expansion indicators and their monitoring methods can no longer meet the requirements of modern industry for the accuracy and efficiency of pipeline expansion monitoring.

[0004] Traditional expansion indicators usually adopt mechanical structures, and their pointers are prone to jamming and deformation, which affects the accuracy of measurement. Existing solutions usually require manual inspection and data recording, which is labor-intensive and error-prone. The values ​​of pipeline expansion and contraction need to be judged manually based on experience, which increases the subjectivity and uncertainty of judgment. Maintenance is inconvenient. Traditional expansion indicators are scattered, and it is necessary to find the measurement point location of the corresponding pipeline when recording, which increases the difficulty and cost of maintenance. Existing detection devices are all fixed monitoring and cannot perform mobile detection pipelines. Summary of the invention

[0005] The present invention provides a pipeline expansion detection device, which is used to solve at least one of the technical problems raised by the above background technology.

[0006] In order to solve the above technical problems, the present invention provides a pipeline expansion detection device, comprising: a pipeline body component, a mounting mechanism, a clamping and fitting mechanism, a rolling walking mechanism, a first detection mechanism, a second detection mechanism and a wireless controller, wherein a plurality of groups of mounting mechanisms are fixedly installed at equal intervals along the outer edge of the pipeline body component in the front-to-back direction, a plurality of groups of clamping and fitting mechanisms are mounted 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 to the wireless controller respectively.

[0007] Preferably, the pipeline body assembly comprises: a base plate and a pipeline bracket, a plurality of pipeline brackets are fixedly installed at intervals in the front and rear on the top of the base plate, and the pipeline to be tested along the front and rear direction is fixedly installed on the pipeline bracket.

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

[0009] The upper semicircular mounting mechanism comprises: a pair of mounting plates 1 are symmetrically arranged along the front-back direction on the pipeline to be tested, the tops of the mounting plates 1 on the left and right sides are fixedly connected to a semicircular bracket 1, and the semicircular bracket 1 is fixedly opened with a mounting hole along its direction;

[0010] The structures of the lower semicircular mounting mechanism and the upper semicircular mounting mechanism are symmetrical in vertical direction, and the lower semicircular mounting mechanism and the upper semicircular mounting mechanism are fixedly connected by mounting bolts.

[0011] Preferably, the semicircular bracket is fixedly provided with three sets of clamping and fitting mechanisms in three equal parts, and the clamping mechanism at the top comprises: a sleeve, a vertical sleeve is fixedly installed on the mounting hole at the top of the semicircular bracket, a box body is fixedly installed on the top of the sleeve, the sleeve is fixedly passed through the bottom wall of the box body, a vertical rod is connected by sliding up and down inside the sleeve, a vertical servo motor is fixedly installed on the top of the box body, a lead screw is rotatably connected inside the box body, the top of the lead screw is fixedly connected to the output shaft end of the servo motor, the servo motor is electrically connected to a storage battery, the lead screw is threadedly connected to an internal threaded sleeve, and the internal threaded sleeve is fixedly connected to the right end of the top of the vertical rod.

[0012] Preferably, the rolling walking mechanism includes: a rolling bracket, a rolling bracket fixedly installed at the bottom of a vertical rod, the rolling bracket is rotatably connected to a rotating roller, the bottom of the rotating roller is pressed against the surface of the pipeline to be measured, the right end of the rotating roller is fixedly connected to pulley one, a walking motor is fixedly installed on the rolling bracket, the output shaft end of the walking motor is fixedly connected to pulley two, and pulley two is connected to pulley one through belt one.

[0013] Preferably, the first detection mechanism includes: a limit plate, the middle part of the vertical rod one is fixedly connected to the limit plate, the vertical rod one is located below the limit plate and is slidably connected to a horizontal plate, the horizontal plate and the vertical rod one of the limit plate are sleeved with a spring on the outside, the top of the horizontal plate one is symmetrically hinged to a pair of strip hole plates, the top of the strip hole plates is fixedly installed in the strip holes by fixing bolts, and vertical sleeves two are symmetrically fixedly installed on the left and right ends of the horizontal plate, and a micrometer scale is slidably connected inside the sleeve two.

[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 a winding roller, a traction rope is fixedly wound on the winding roller, the other end of the traction rope is fixedly connected to the top of the counterweight, and a plurality of pan-tilt cameras are fixedly installed on the semicircular bracket 1, and the pan-tilt cameras are used to record and monitor the 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 distance measuring sensors are symmetrically fixedly installed on the front end of each horizontal plate one, the distance measuring sensor is used to detect the radial size of the pipeline to be tested, and a height sensor is fixedly pressed on the end of the middle part of the mounting plate one away from the semicircular bracket one, and 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 abnormal 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 through the first calculation unit according to the following formula (1);

[0026]

[0027] Among them, δ is the stress state coefficient of the pipe wall in the expansion area of ​​the tested pipe, σl is the theoretical material yield strength of the pipeline to be tested, C is the half length of the crack in the expansion area of ​​the pipeline, E is the longitudinal elastic modulus of the pipeline to be tested, π is the pi, the value is 3.14, ln is the logarithmic function, sec is the secant function, e is a natural constant with a value of 2.72, L is the length of the expansion area of ​​the pipeline detected in the t time period, t is the detection time period, D is the equivalent diameter of the pipeline to be tested, H is the wall thickness of the pipeline to be tested, T max is the maximum operating temperature of the pipeline surface detected by the temperature detection unit 1, T min is the minimum operating temperature of the pipeline surface detected by the temperature detection unit 1, T c is the average ambient temperature value when the pipeline expansion detection device is in operation detected by the temperature detection unit 2, and T0 is the initial temperature value of the surface of the pipeline to be tested detected by the temperature detection unit 1;

[0028] Step 2: The control unit calculates the pipeline expansion abnormality assessment coefficient through the second calculation unit according to the following formula (2);

[0029]

[0030] Where: M is the pipeline expansion anomaly assessment coefficient, n is the number of pipeline expansion areas to be tested, P T is the theoretical burst failure pressure of the pipeline to be tested, σ max is the ultimate tensile strength of the pipe to be tested, is the limit internal pressure load of the pipeline to be tested, L1 is the first length value of the expansion area, L2 is the second length value of the expansion area, d is the distance change value detected by the laser sensor;

[0031] Step 3: The intelligent identification and judgment unit compares the pipeline expansion abnormality assessment coefficient with the theoretical expansion normal threshold. When M exceeds the maximum value of the theoretical expansion normal threshold, the control unit controls the alarm to sound an alarm. xun When it is lower than the theoretical normal expansion threshold, the control unit only needs to record the position of the expansion area and the alarm will not respond.

[0032] Compared with the prior art, the beneficial effects of the present invention are as follows: the present invention provides a pipeline expansion detection device, which fixes the clamping and fitting mechanism, the rolling travel mechanism, the first detection mechanism, the second detection mechanism and other components on the pipeline body component through the installation mechanism. The wireless controller serves as the core, receives and processes the signals from each detection mechanism, and realizes real-time monitoring of the expansion of the pipeline. The clamping and fitting mechanism can adjust the fitting according to the actual situation of the pipeline through driving components such as servo motors to ensure the accuracy of the detection. The rolling travel mechanism enables the detection device to move along the surface of the pipeline to realize the detection of the entire pipeline.

[0033] Beneficial effects:

[0034] High degree of automation: centralized control by wireless controller realizes automatic detection of pipeline expansion.

[0035] Strong adaptability: The clamping and fitting mechanism can be adaptively adjusted according to the shape of the pipe, which improves the versatility and accuracy of detection.

[0036] Comprehensive detection: The rolling travel mechanism enables the detection device to move along the pipeline, ensuring comprehensive detection of the entire pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0038] Figure 1 It is a front cross-sectional schematic diagram of a pipeline expansion detection device of the present invention;

[0039] Figure 2 It is a left schematic diagram of a pipeline expansion detection device of the present invention;

[0040] Figure 3 It is a front view schematic diagram of the clamping and fitting mechanism at the top and the first detection mechanism of the present invention.

[0041] Reference numerals:

[0042] 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 bracket; 10. Pipeline to be tested; 11. Upper semicircle mounting assembly; 12. Lower semicircle mounting assembly; 13. Mounting plate 1; 14. Semicircular bracket 1; 15. Mounting hole; 16. Mounting bolt; 17. Casing 1; 18. Box 1; 19. Vertical rod 1; 20. Servo motor 1; 21. Lead screw 1; 22 , internal threaded sleeve; 23, storage battery; 24, rolling bracket; 25, rotating roller; 26, pulley one; 27, walking motor; 28, pulley two; 29, belt one; 30, limit plate; 31, horizontal plate one; 32, spring one; 33, strip 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 sensor; 44, height sensor. DETAILED DESCRIPTION

[0043] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0045] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0046] The present invention provides the following embodiments

[0047] Example 1

[0048] The embodiment of the present invention provides a pipeline expansion detection device, such as Figure 1 As shown, it includes: a pipeline 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 pipeline body component 1 has several groups of mounting mechanisms 2 fixedly installed at equal intervals in the front-to-back direction on the outer edge, and each group of mounting mechanisms 2 has several groups of clamping and fitting mechanisms 3. A rolling walking mechanism 4 is fixedly arranged at the bottom of each group of clamping and fitting mechanisms 3. The clamping and fitting mechanisms 3 are fixedly provided with a first detection mechanism 5, and the mounting mechanisms 2 are fixedly provided with a second detection mechanism 6. The clamping and fitting mechanisms 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.

[0049] The working principle and beneficial effects of the above technical solution are:

[0050] Working principle: The pipeline expansion detection device provided by the present invention fixes the clamping and fitting mechanism 3, the rolling mechanism 4, the first detection mechanism 5, the second detection mechanism 6 and other components on the pipeline body component 1 through the installation mechanism 2. The wireless controller 7 serves as the core, receives and processes the signals from each detection mechanism, and realizes real-time monitoring of the expansion of the pipeline. The clamping and fitting mechanism 3 can adjust the fitting according to the actual situation of the pipeline through driving components such as servo motors to ensure the accuracy of the detection. The rolling mechanism 4 enables the detection device to move along the surface of the pipeline to realize the detection of the entire pipeline.

[0051] Pipeline body component 1: as the detection object, several groups of installation mechanisms 2 are installed at equal intervals on its outer edge.

[0052] The mounting mechanism 2 is used to fix the clamping and fitting mechanism 3, the rolling travel mechanism 4 and other components to ensure that they can act stably on the pipe surface.

[0053] Clamping and fitting mechanism 3: Through a driving device such as a servo motor, a close fit of the pipe is achieved to adapt to pipes of different diameters and shapes.

[0054] Rolling walking mechanism 4: enables the detection device to move smoothly along the pipeline surface to achieve continuous detection of the entire pipeline.

[0055] 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.

[0056] 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.

[0057] Beneficial effects:

[0058] High degree of automation: centralized control by wireless controller 7 realizes automatic monitoring of pipeline expansion, reduces manual intervention and improves detection efficiency.

[0059] Strong adaptability: The clamping and fitting mechanism 3 can adapt to pipes of different diameters and shapes, thereby improving the versatility and practicality of the device.

[0060] Comprehensive detection: The rolling travel mechanism 4 enables the detection device to move along the pipeline, ensuring comprehensive detection of the entire pipeline and avoiding missed detection and false detection.

[0061] Example 2

[0062] On the basis of Example 1, Figure 1-Figure 3As shown, the pipeline body assembly 1 includes: a bottom plate 8 and a pipeline support 9, a plurality of pipeline supports 9 are fixedly installed at intervals on the top of the bottom plate 8, and a pipeline 10 to be tested along the front-to-back direction is fixedly installed on the pipeline support 9.

[0063] The mounting mechanism 2 comprises: an upper semicircular mounting assembly 11 and a lower semicircular mounting assembly 12;

[0064] The upper semicircular mounting mechanism 2 comprises: the pipeline to be tested 10 is symmetrically provided with a pair of mounting plates 13 along the front-back direction, the tops of the left and right mounting plates 13 are fixedly connected to a semicircular bracket 14, and the semicircular bracket 14 is fixedly provided with a mounting hole 15 along its direction;

[0065] The structures of the lower semicircular mounting mechanism 2 and the upper semicircular mounting mechanism 2 are symmetrical in vertical direction, and the lower semicircular mounting mechanism 2 and the upper semicircular mounting mechanism 2 are fixedly connected by mounting bolts 16 .

[0066] The semicircular bracket 14 is fixedly provided with three sets of clamping and fitting mechanisms 3 in three equal parts, and the clamping mechanism 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 penetrated through the bottom wall of the box 18, a vertical rod 19 is connected to the sleeve 17 for sliding up and down, a vertical servo motor 20 is fixedly installed on the top of the box 18, a screw 21 is rotatably connected inside the box 18, the top 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.

[0067] The working principle and beneficial effects of the above technical solution are:

[0068] Working principle:

[0069] On the basis of Example 1, this embodiment further optimizes the mounting mechanism 2 and the clamping and fitting mechanism 3. The mounting mechanism 2 adopts the design of the upper and lower semicircular mounting components 12, which are fixedly connected by mounting bolts 16 to form a complete mounting frame. The clamping and fitting mechanism 3 drives the lead screw through a servo motor to achieve a close fit with the pipe 10 to be tested.

[0070] 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.

[0071] 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.

[0072] Beneficial effects:

[0073] 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.

[0074] More precise adjustment: The design of the servo motor driving the lead screw enables the clamping and fitting mechanism 3 to be adaptively adjusted according to the actual situation of the pipeline, thereby improving the accuracy and reliability of the detection.

[0075] Example 3

[0076] On the basis of Example 2, Figure 1-Figure 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 a rotating roller 25, the bottom of the rotating roller 25 is pressed against the surface of the pipeline 10 to be tested, the right end of the rotating roller 25 is fixedly connected to a pulley 26, a walking motor 27 is fixedly installed on the rolling bracket 24, the output shaft end of the walking motor 27 is fixedly connected to a pulley 28, and the pulley 28 is connected to the pulley 26 through a belt 29.

[0077] 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 horizontal plate and the vertical rod 19 of the limit plate 30 are sleeved 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 holes by fixing bolts 34, the left and right ends of the horizontal plate are symmetrically fixed with vertical sleeves 35, and the sleeves 35 are slidably connected to a micrometer scale 36 up and down.

[0078] The top of the micrometer scale 36 is fixedly connected to the counterweight 37, the strip orifice plate 33 is fixedly installed with a motor 2 38, the output shaft end of the motor 2 38 is fixedly connected to a winding roller 39, the winding roller 39 is fixedly wound with a traction rope 40, and the other end of the traction rope 40 is fixedly connected to the top of the counterweight 37, and a plurality of pan-tilt cameras 41 are fixedly installed on the semicircular bracket 14, and the pan-tilt cameras 41 are used to record and monitor the image information of the micrometer scale 36 and the pipeline 10 to be tested.

[0079] The working principle and beneficial effects of the above technical solution are:

[0080] Working principle:

[0081] This embodiment further improves the rolling travel mechanism 4 and the first detection mechanism 5. The rolling travel mechanism 4 realizes the smooth movement of the detection device along the surface of the pipeline through the design of the rotating roller 25 and the travel 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 block 37.

[0082] Rotating roller 25 and travel motor 27: enable the detection device to move smoothly along the pipeline surface, avoiding errors caused by friction or jamming.

[0083] Micrometer scale 36 and counterweight block 37: Through the weight effect of the counterweight block 37, the micrometer scale 36 can accurately measure the expansion of the pipeline.

[0084] Beneficial effects:

[0085] More stable movement: The design of the rotating roller 25 and the travel motor 27 enables the detection device to move smoothly along the pipeline surface, thereby improving the continuity and accuracy of the detection.

[0086] More accurate measurement: The design of the micrometer scale 36 and the counterweight block 37 improves the accuracy and stability of the measurement, providing reliable data support for subsequent data analysis.

[0087] Example 4

[0088] On the basis of Example 2, Figure 1 , Figure 3 As shown, the second detection mechanism 6 includes: a laser sensor 42, a pair of laser sensors 42 are fixedly installed 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 symmetrically fixedly installed on the front end of each horizontal plate 31, the distance sensor 43 is used to detect the radial size of the pipeline 10 to be tested, and a height sensor 44 is fixedly pressed on the end of the middle part of the mounting plate 13 away from the semicircular bracket 14, and the height sensor 44 is used to detect and record the height information of the mounting plate 13 from the bottom plate 8.

[0089] The working principle and beneficial effects of the above technical solution are:

[0090] Working principle:

[0091] This embodiment introduces a 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 a laser sensor 42 and a distance sensor 43. At the same time, a height sensor 44 is used to detect the height information of the mounting plate 13 from the bottom plate 8, providing comprehensive data support for the expansion of the pipeline.

[0092] Laser sensor 42 and distance sensor 43: can detect the dimensional changes of the pipeline in the horizontal and radial directions in real time, providing an important basis for evaluating the expansion of the pipeline.

[0093] Height sensor 44: used to detect the height information of the mounting plate 13 from the bottom plate 8, providing a reference for determining the degree of deformation of the pipeline.

[0094] Beneficial effects:

[0095] The data is more comprehensive: the introduction of the second detection mechanism 6 makes the detection data more comprehensive, providing more information support for subsequent data analysis and processing.

[0096] More accurate assessment: Through the combined effect of the laser sensor 42, the distance sensor 43 and the height sensor 44, the expansion of the pipeline can be assessed more accurately, thereby improving the accuracy and reliability of the detection.

[0097] Example 5

[0098] On the basis of Example 2, an intelligent monitoring abnormality alarm module is further provided, and the intelligent monitoring abnormality alarm module includes:

[0099] Temperature detection unit 1, used to detect the working temperature of the surface of the pipeline 10 to be tested;

[0100] Temperature detection unit 2, used for dynamically detecting and recording the ambient temperature when the pipeline expansion detection device is in operation;

[0101] The first calculation unit is used to calculate the stress state coefficient of the pipe wall in the expansion area of ​​the pipe 10 to be tested;

[0102] The second calculation unit is used to calculate the pipeline expansion abnormality assessment coefficient;

[0103] Intelligent identification and judgment unit, used to identify and compare the pipeline expansion abnormality assessment coefficient and the theoretical expansion normal threshold;

[0104] Alarm, used to respond to abnormal situations;

[0105] 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 second calculation unit to calculate.

[0106] Preferably, the steps of intelligent monitoring abnormal alarm include:

[0107] 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);

[0108] Wherein, δ is the stress state coefficient of the pipe wall in the expansion area of ​​the tested pipe 10, σ l is the theoretical material yield strength of the pipeline 10 to be tested, C is the half length of the crack in the expansion area of ​​the pipeline, E is the longitudinal elastic modulus of the pipeline 10 to be tested, π is the pi ratio, which is 3.14, ln is the logarithmic function, sec is the secant function, e is a natural constant with a value of 2.72, L is the length of the expansion area of ​​the pipeline detected in the time period t, t is the detection time period, D is the equivalent diameter of the pipeline 10 to be tested, H is the wall thickness of the pipeline 10 to be tested, T max is the maximum operating temperature of the surface of the pipeline 10 to be tested detected by the temperature detection unit 1, T min is the minimum operating temperature of the surface of the pipeline 10 to be tested detected by the temperature detection unit 1, T c is the average ambient temperature value of the pipeline expansion detection device when it is in operation detected by the temperature detection unit 2, and T0 is the initial temperature value of the surface of the pipeline 10 to be tested detected by the temperature detection unit 1;

[0109] Step 2: The control unit calculates the pipeline expansion abnormality assessment coefficient through the second calculation unit according to the following formula (2);

[0110]

[0111] Where: M is the pipeline expansion anomaly assessment coefficient, n is the number of expansion areas of the pipeline to be tested, P T is the theoretical burst failure pressure of the pipeline 10 to be tested, σ max is the ultimate tensile strength of the pipeline 10 to be tested, is the limit internal pressure load of the pipeline 10 to be tested, L1 is the first length value of the expansion area, L2 is the second length value of the expansion area, d is the distance change value detected by the laser sensor 42;

[0112] Step 3: The intelligent identification and judgment unit compares the pipeline expansion abnormality assessment coefficient with the theoretical expansion normal threshold. When M exceeds the maximum value of the theoretical expansion normal threshold, the control unit controls the alarm to sound an alarm. xun When it is lower than the theoretical normal expansion threshold, the control unit only needs to record the position of the expansion area and the alarm will not respond.

[0113] The working principle and beneficial effects of the above technical solution are:

[0114] Working principle:

[0115] Based on the above, this embodiment integrates an intelligent monitoring abnormal alarm module. The module realizes real-time monitoring and early warning of pipeline expansion through components such as a temperature detection unit, a calculation unit, an intelligent identification and judgment unit, and an alarm.

[0116] Temperature detection unit: used to detect the working temperature and ambient temperature of the pipeline and other information, providing data support for the calculation unit.

[0117] Calculation unit: Calculates parameters such as pipeline expansion anomaly assessment coefficient according to preset algorithms and formulas.

[0118] Intelligent identification and judgment unit: compares the calculated evaluation coefficient with the theoretical normal expansion threshold to determine whether there is abnormal expansion in the pipeline.

[0119] Alarm: When abnormal expansion is detected, a warning signal will be issued in time to remind relevant personnel to deal with it.

[0120] Beneficial effects:

[0121] Early warning is more timely: The intelligent monitoring abnormal alarm module can monitor the expansion of the pipeline in real time and issue early warning signals in time when an abnormality is detected, thereby improving safety.

[0122] More intelligent assessment: Through the combined effect of the calculation unit and the intelligent identification and judgment unit, the expansion of the pipeline can be assessed more accurately, improving the accuracy and reliability of the assessment.

[0123] Easier operation: The wireless controller 7 collects and processes data in a centralized manner, which simplifies the operation process and reduces the technical requirements for operators.

[0124] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A pipeline expansion detection device, characterized in that: include: A pipeline body component (1), a mounting mechanism (2), a clamping and fitting mechanism (3), a rolling mechanism (4), a first detection mechanism (5), a second detection mechanism (6) and a wireless controller (7); a plurality of groups of mounting mechanisms (2) are fixedly mounted on the outer edge of the pipeline body component (1) at equal intervals in the front-to-back direction; a plurality of groups of clamping and fitting mechanisms (3) are mounted on each group of mounting mechanisms (2); a rolling mechanism (4) is fixedly arranged at the bottom of each group of clamping and fitting mechanisms (3); a first detection mechanism (5) is fixedly arranged on the clamping and fitting mechanism (3); a second detection mechanism (6) is fixedly arranged on the mounting mechanism (2); and the clamping and fitting mechanism (3), the rolling mechanism (4), the first detection mechanism (5) and the second detection mechanism (6) are respectively electrically connected to the wireless controller (7).

2. A pipeline expansion detection device according to claim 1, characterized in that: The pipeline body component (1) comprises: a base plate (8) and a pipeline support (9); a plurality of pipeline supports (9) are fixedly installed at intervals on the top of the base plate (8); and a pipeline (10) to be tested is fixedly installed on the pipeline support (9) along the front-to-back direction.

3. A pipeline expansion detection device according to claim 2, characterized in that: The mounting mechanism (2) comprises: an upper semicircular mounting assembly (11) and a lower semicircular mounting assembly (12); The upper semicircular mounting mechanism (2) comprises: the pipeline to be tested (10) is symmetrically provided with a pair of mounting plates (13) along the front-back direction, the tops of the mounting plates (13) on the left and right sides are fixedly connected to a semicircular bracket (14), and the semicircular bracket (14) is fixedly provided with a mounting hole (15) along its direction; The structures of the lower semicircular mounting mechanism (2) and the upper semicircular mounting mechanism (2) are symmetrical in vertical direction, and the lower semicircular mounting mechanism (2) and the upper semicircular mounting mechanism (2) are fixedly connected via mounting bolts (16).

4. A pipeline expansion detection device according to claim 3, characterized in that: The semicircular bracket (14) is fixedly provided with three sets of clamping and fitting mechanisms (3) in three equal parts, and the clamping mechanism at the top comprises: 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. ), 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 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), the rolling bracket (24) is fixedly mounted on the bottom of the vertical rod (19), the rolling bracket (24) is rotatably connected to a rotating roller (25), the bottom of the rotating roller (25) is pressed against the surface of the pipeline (10) to be tested, the right end of the rotating roller (25) is fixedly connected to a pulley (26), a walking motor (27) is fixedly mounted on the rolling bracket (24), the output shaft end of the walking motor (27) is fixedly connected to a pulley (28), and the pulley (28) is connected to the pulley (26) through a belt (29).

6. A pipeline expansion detection device according to claim 4, characterized in that: The first detection mechanism (5) comprises: 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) of the horizontal plate 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 hole plates (33), the top of the strip hole plates (33) is fixedly installed in the strip holes by fixing bolts (34), the left and right ends of the horizontal plate are symmetrically fixedly installed with vertical sleeves (35), and the sleeves (35) are slidably connected to a micrometer scale (36) up and down.

7. A pipeline expansion detection device according to claim 6, characterized in that: The top end of the micrometer scale (36) is fixedly connected to a counterweight (37); a second motor (38) is fixedly mounted 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); the other end of the traction rope (40) is fixedly connected to the top end of the counterweight (37); and a plurality of pan-tilt cameras (41) are fixedly mounted on the first semicircular bracket (14); the pan-tilt cameras (41) are used to record and monitor image information of the micrometer scale (36) and the pipeline (10) to be tested.

8. A pipeline expansion detection device according to claim 3, characterized in that: 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 symmetrically fixedly mounted on the front end of each horizontal plate (31); the distance sensors (43) are used to detect the radial size of the pipeline (10) to be detected; a height sensor (44) is fixedly mounted on the middle end of the mounting plate (13) away from 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).

9. A pipeline expansion detection device according to claim 4, characterized in that: There is also an intelligent monitoring abnormal alarm module, which includes: A temperature detection unit 1, used to detect the working 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 to centrally collect 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 control the first calculation unit and the second calculation unit to calculate.

10. A pipeline expansion detection device according to claim 9, characterized in that: 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); Wherein, δ is the stress state coefficient of the pipe wall in the expansion area of ​​the tested pipe (10), σ l is the theoretical material yield strength of the pipeline (10) to be tested, C is half the length of the crack in the expansion area of ​​the pipeline, E is the longitudinal elastic modulus of the pipeline (10) to be tested, π is the circumference of a circle and has a value of 3.14, ln is a logarithmic function, sec is a secant function, e is a natural constant and has a value of 2.72, L is the length of the expansion area of ​​the pipeline tested in the time period t, t is the detection time period, D is the equivalent diameter of the pipeline (10) to be tested, H is the wall thickness of the pipeline (10) to be tested, T max is the maximum operating temperature of the surface of the pipeline (10) to be tested detected by the temperature detection unit 1, T min is the minimum operating temperature of the surface of the pipeline (10) to be tested detected by the temperature detection unit 1, T c is the average ambient temperature value detected by the temperature detection unit 2 when the pipeline expansion detection device is in operation, and T0 is the initial temperature value of the surface of the pipeline (10) to be detected by the temperature detection unit 1; Step 2: The control unit calculates the pipeline expansion abnormality assessment coefficient through the second calculation unit according to the following formula (2); Where: M is the pipeline expansion anomaly assessment coefficient, n is the number of expansion areas in the pipeline to be tested (10), P T is the theoretical burst failure pressure of the pipeline (10) to be tested, σ max is the ultimate tensile strength of the pipeline (10) to be tested, is the limit internal pressure load of the pipeline (10) to be tested, L1 is the first length value of the expansion area, L2 is the second length value of the expansion area, d is the distance change value detected by the 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 M exceeds the maximum value of the theoretical expansion normal threshold, the control unit controls the alarm to sound an alarm. xun When the theoretical expansion normal threshold is not exceeded, the control unit only needs to record the position of the expansion area, and the alarm will not respond.

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