A pipe pressure resistance testing device

Abstract

This invention discloses a pipeline compressive strength testing device, belonging to the field of testing technology, including a compressive strength performance analysis system and a symmetrical testing mechanism. The system quantifies pipeline attributes and environmental factors through a pipeline foundation analysis module (generating pipeline foundation coefficients based on length, diameter, and thickness deviations) and an environmental constraint analysis module (generating constraint coefficients based on clamping force, air pressure fluctuations, etc.); an impact-friction energy release path analysis module integrates pipeline foundation coefficients, environmental constraints, average burst displacement, peak impact, and average friction force to construct an energy distribution model and output impact-friction energy release path analysis coefficients; and a pipeline diameter-to-thickness ratio optimization module, based on the impact-friction energy release path analysis coefficients and the current diameter-to-thickness ratio, outputs a target diameter-to-thickness ratio through an exponential decay model. This invention solves the problem of traditional methods failing to quantify energy release paths, significantly improving the accuracy of compressive strength performance evaluation and the reliability of pipeline design.

Description

Technical Field

[0001] This invention belongs to the field of testing technology, and in particular relates to a device for testing the pressure resistance of pipelines. Background Technology

[0002] Pipeline pressure resistance testing is a crucial step in ensuring the safe operation of oil and gas transportation, water conservancy projects, and other fields. Traditional testing methods often rely on single burst pressure tests or static parameter analysis, making it difficult to quantify the energy release mechanism and the impact of environmental constraints during dynamic bursting. Existing technologies have the following shortcomings: (1) They do not comprehensively consider the coupling effect between pipeline basic properties (such as diameter-to-thickness ratio and thickness deviation) and environmental factors (clamping force and air pressure fluctuations); (2) They lack quantitative analysis of the distribution path of bursting impact energy and frictional energy consumption; (3) The diameter-to-thickness ratio optimization relies on empirical formulas and lacks theoretical model support, resulting in insufficient guidance for the test results. Therefore, there is an urgent need for a testing device that can dynamically analyze the energy release path and accurately optimize pipeline design parameters. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a pipeline pressure resistance testing device, which solves the aforementioned problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a pipeline compressive strength testing device, comprising a compressive strength analysis system for analyzing the burst compressive strength of pipelines, including:

[0005] The pipeline foundation analysis module constructs a pipeline foundation model based on pipeline length, pipeline diameter, and pipeline thickness deviation, and outputs pipeline foundation coefficients through the pipeline foundation model.

[0006] The environmental constraint analysis module constructs an environmental constraint model based on the pipe side clamping force, burst gas pressure, standard deviation of gas pressure fluctuation, and pressure rise amplitude, and outputs environmental constraint coefficients through the environmental constraint model.

[0007] The impact-friction energy release path analysis module constructs an impact-friction energy release path analysis model based on the average displacement of pipeline bursting, the peak impact value of pipeline bursting, and the average friction force on the side of pipeline bursting under pipeline foundation coefficients and environmental constraint coefficients. The impact-friction energy release path analysis model outputs impact-friction energy release path analysis coefficients.

[0008] The pipe diameter-to-thickness ratio optimization module constructs a pipe diameter-to-thickness ratio optimization model based on the impact-friction energy release path analysis coefficient and the current pipe diameter-to-thickness ratio, and outputs the target pipe diameter-to-thickness ratio through the pipe diameter-to-thickness ratio optimization model.

[0009] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0010] A further technical solution: The pipe diameter-to-thickness ratio optimization model is expressed as:

[0011]

[0012] in, Indicates the target pipe diameter-to-thickness ratio. This indicates the current pipe diameter-to-thickness ratio. Indicates the attenuation coefficient. This represents the threshold for the impact-friction energy release path analysis coefficient. The coefficients representing the impact-friction energy release path analysis are as follows: , Indicates the minimum permissible diameter-to-thickness ratio. This indicates the maximum permissible diameter-to-thickness ratio.

[0013] Further technical solution: The working steps of the impact-friction energy release path analysis module are as follows:

[0014] Based on the current average pipeline blast displacement and the current average pipeline blast impact peak value A pipeline blasting impact energy model is constructed, and the pipeline blasting impact energy is output through this model. This indicates the peak impact value of the ruptured pipe on the left. This represents the peak impact value of the right-side blasted pipeline. The pipeline blast impact energy model is expressed as follows:

[0015]

[0016] in, This indicates the impact energy of a pipeline rupture. This represents the average peak value of the impact from a pipeline rupture. This represents the average displacement during a pipeline rupture. This indicates the displacement of the ruptured pipe on the left. Indicates the displacement of the ruptured pipe on the right;

[0017] A pipeline friction energy dissipation model is constructed based on the average side friction force and average displacement of the pipeline during blasting, and the pipeline friction energy dissipation is obtained. The pipeline friction energy dissipation model is expressed as follows:

[0018]

[0019] in, This indicates energy loss due to pipe friction. This represents the average frictional force of the blasted pipe. This represents the average displacement during a pipeline rupture. This indicates the displacement of the ruptured pipe on the left. Indicates the displacement of the ruptured pipe on the right;

[0020] A blasting energy distribution ratio model is constructed based on the impact energy of pipeline blasting and the energy dissipation due to pipeline friction. The blasting energy distribution ratio is output through the blasting energy distribution ratio model, which is expressed as follows:

[0021]

[0022] in, Indicates the weight of the impact kinetic energy. This indicates the weight of the proportion of energy lost due to friction. This indicates the impact energy of a pipeline rupture. This indicates energy loss due to pipeline friction;

[0023] An impact-friction energy release path analysis model is constructed based on the weights of impact kinetic energy, friction energy consumption, pipeline foundation coefficient, and environmental constraint coefficient. This impact-friction energy release path analysis model is expressed as follows:

[0024]

[0025] in, Indicates the impact-friction energy release path analysis coefficient. Indicates the foundation coefficient of the pipeline. This represents the environmental constraint coefficient. Indicates the weight of the impact kinetic energy. The weighting of the proportion of frictional energy loss is indicated by the following: Furthermore, the larger the value, the better the energy release pathway.

[0026] Further technical solution: The working steps of the pipeline foundation analysis module are as follows:

[0027] The pipe length index, pipe diameter index, and pipe thickness deviation are obtained by performing maximum-min normalization on the pipe length, pipe diameter, and pipe thickness deviation.

[0028] A basic pipeline model is constructed based on the pipeline length index, pipeline diameter index, and pipeline thickness deviation index. This basic pipeline model is represented as follows:

[0029]

[0030] in, Indicates the foundation coefficient of the pipeline. This indicates the pipe diameter index. Indicates the pipe length index. This indicates the pipe thickness deviation index. Represents the weight coefficient and The The range of values ​​includes , , The Furthermore, the higher the value, the better the compressive strength of the pipeline foundation;

[0031] Import the current pipe length index, current pipe diameter index, and current pipe thickness deviation index into the pipe foundation model to output the current pipe foundation coefficient.

[0032] Further technical solution: The working steps of the environmental constraint analysis module are as follows:

[0033] The side clamping force, bursting air pressure, standard deviation of air pressure fluctuation (air pressure stability), and pressure rise amplitude are normalized by the maximum-minimum process to obtain the side clamping force index, bursting air pressure index, standard deviation of air pressure fluctuation index, and pressure rise amplitude index.

[0034] An environmental constraint model is constructed based on the lateral clamping force index, the burst pressure index, the pressure fluctuation standard deviation index, and the pressure rise amplitude index. The environmental constraint model is expressed as follows:

[0035]

[0036] in, This represents the environmental constraint coefficient. Indicates the blast pressure index. Indicates the pressure rise index. Indicates the side clamping force index. This represents the standard deviation index of air pressure fluctuations. Represents the weight coefficient and The The range of values ​​includes , , The Furthermore, the larger the value, the better the environmental constraints.

[0037] The current side clamping force index, current burst pressure index, current pressure fluctuation standard deviation index, and current pressure rise index are imported into the environmental constraint model to obtain the current environmental constraint coefficient.

[0038] Further technical solutions include: a base, an L-shaped base, and a support plate; two support plates are symmetrically fixedly connected to the base; two L-shaped bases are symmetrically mounted on both sides of the base via linear motion components A embedded in the base; and further include:

[0039] The pipe side clamping mechanism is mounted on the support plate and the two sets of support plates are symmetrically arranged relative to the base. It is used to clamp and position the pipe and to detect the friction force of the pipe during the explosion.

[0040] The impact force testing mechanism consists of two sets of impact force testing mechanisms symmetrically arranged on an L-shaped base, used to test the sealing of pipelines and the impact force of pipeline bursts.

[0041] The displacement detection mechanism is installed on an L-shaped base, with two sets of displacement detection mechanisms symmetrically arranged relative to the base, and is used to detect the displacement generated during pipeline bursting.

[0042] Further technical solution: The pipe side clamping mechanism includes a linear motion component B, an arc plate, and a friction sensor. Several linear motion components B are evenly installed in a ring on the support plate. The friction sensor is fixedly connected to the arc plate. A pressure sensor is fixedly installed between the output shaft of the linear motion component B and the arc plate.

[0043] Further technical solution: The impact force detection mechanism includes a sealing cylinder, an impact force sensor, a rod, a spring, and a nut. The sealing cylinder is detachably installed at the end of the pipe. One end of the rod is fixedly connected to the impact force sensor fixedly connected to the sealing cylinder. The other end of the rod passes through an L-shaped base and is threaded with a nut. A spring is sleeved on the rod.

[0044] A further technical solution: The displacement detection mechanism includes a displacement sensor, which is detachably mounted on an L-shaped base and two displacement sensors are symmetrically arranged relative to the base.

[0045] A pipeline pressure resistance testing device, which employs the aforementioned pipeline pressure resistance testing device.

[0046] This invention provides a device for testing the compressive strength of pipelines, which has the following advantages compared with the prior art:

[0047] 1. This invention achieves collaborative analysis of active and passive pressure resistance factors through a pipeline basic model (quantifying length, diameter, and thickness deviations) and an environmental constraint model (integrating clamping force, air pressure stability, etc.). Simultaneously, based on the average values ​​of blast displacement, impact force, and friction force, it calculates the impact kinetic energy and friction energy consumption weights, generates an optimization coefficient for the impact-friction energy release path, and provides a scientific basis for pipeline pressure resistance design. Finally, it establishes a diameter-to-thickness ratio optimization model, and dynamically outputs the target diameter-to-thickness ratio in combination with safety weights, thereby improving the reliability of pipeline explosion-proof performance design. Attached Figure Description

[0048] Figure 1 This is a flowchart illustrating the compressive strength analysis system of the present invention.

[0049] Figure 2 This is a three-dimensional structural diagram of the present invention.

[0050] Figure 3This is a schematic diagram of the pipe side clamping mechanism and the impact force detection mechanism in this invention.

[0051] Figure reference numerals: 1. Base; 2. L-shaped base; 3. Linear motion component A; 4. Support plate; 5. Pipe side clamping mechanism; 501. Linear motion component B; 502. Arc plate; 503. Friction sensor; 6. Impact force detection mechanism; 601. Sealing cylinder; 602. Impact force sensor; 603. Rod; 604. Spring; 605. Nut; 7. Pipe. Detailed Implementation

[0052] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0053] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0054] Please see Figure 1 According to one embodiment of the present invention, a pipeline compressive strength testing device includes a compressive strength analysis system for analyzing the burst compressive strength of a pipeline, comprising:

[0055] The pipeline foundation analysis module constructs a pipeline foundation model based on pipeline length, pipeline diameter, and pipeline thickness deviation, and outputs pipeline foundation coefficients through the pipeline foundation model.

[0056] The environmental constraint analysis module constructs an environmental constraint model based on the pipe side clamping force, burst gas pressure, standard deviation of gas pressure fluctuation (gas pressure stability), and pressure rise amplitude, and outputs environmental constraint coefficients through the environmental constraint model;

[0057] The impact-friction energy release path analysis module constructs an impact-friction energy release path analysis model based on the average displacement of pipeline bursting, the peak impact value of pipeline bursting, and the average friction force on the side of pipeline bursting under pipeline foundation coefficients and environmental constraint coefficients. The impact-friction energy release path analysis model outputs impact-friction energy release path analysis coefficients.

[0058] The pipe diameter-to-thickness ratio optimization module constructs a pipe diameter-to-thickness ratio optimization model based on the impact-friction energy release path analysis coefficient and the current pipe diameter-to-thickness ratio, and outputs the target pipe diameter-to-thickness ratio through the pipe diameter-to-thickness ratio optimization model.

[0059] The pipeline foundation analysis module is a system unit that normalizes the deviations in pipeline length, diameter, and thickness and establishes a weighted calculation model. Specifically, it uses a maximum-minimum normalization algorithm to process the original parameters, and then constructs a calculation model through a combination of quadratic functions and linear terms to eliminate dimensional differences and quantify the impact of the pipeline's own structure on its pressure resistance performance. The environmental constraint analysis module is a system unit that standardizes external load parameters and establishes an interaction model. Specifically, it uses a modeling method combining normalization processing with product and linear terms to characterize the constraint effect of dynamic environmental factors such as clamping force and air pressure fluctuations on pipeline burst behavior. The impact-friction energy release path analysis module is a system unit that calculates the energy distribution ratio using the average displacement and average impact force. Specifically, it calculates the impact energy by multiplying the average impact force and average displacement, and calculates the frictional energy consumption by combining the average friction force and average displacement, to quantify the optimization degree of the energy release path. The pipeline diameter-to-thickness ratio optimization module is an algorithm unit that dynamically adjusts structural parameters based on the energy release coefficient. Specifically, it uses an exponential function model combined with a safety weight coefficient to achieve closed-loop optimization of the diameter-to-thickness ratio.

[0060] Specifically, the pipeline foundation analysis module first normalizes the deviations in pipeline length, diameter, and thickness to eliminate dimensional differences, then constructs a combined model containing quadratic and linear terms, outputting fundamental coefficients reflecting the pipeline's own pressure resistance. The environmental constraint analysis module standardizes the clamping force and air pressure parameters, using a product term to characterize the interaction between blast pressure and pressure rise amplitude, and combining a linear term to characterize the independent influence of clamping force and air pressure fluctuations, outputting environmental constraint coefficients. The impact-friction energy release path analysis module, based on the above two coefficients, calculates the impact energy by multiplying the average impact force and average displacement, and combines this with the product of the average friction force and average displacement to obtain frictional energy dissipation, establishing an energy distribution ratio model. Finally, it obtains the energy release path optimization coefficients through weighted summation. The pipeline diameter-to-thickness ratio optimization module, based on these coefficients, dynamically adjusts the current diameter-to-thickness ratio using an exponential decay model, outputting the optimized target value within a preset safety range, forming a feedback adjustment mechanism between structural parameters and the energy release path.

[0061] Compared to existing technologies, traditional methods only consider pipeline foundation parameters or environmental factors in isolation. This solution, however, establishes a coupled model of foundation properties and environmental constraints, accurately reflecting the synergistic effect of structural parameters and external loads. Existing technologies lack quantitative methods for energy distribution paths, while this solution constructs an evaluation index for energy release paths by calculating the ratio of impact energy to frictional energy dissipation. Compared to the diameter-to-thickness ratio adjustment method relying on empirical formulas, this solution constructs an exponential optimization model based on the energy release coefficient, achieving dynamic parameter optimization guided by theory.

[0062] Preferably, the working steps of the pipeline foundation analysis module are as follows:

[0063] The pipe length index, pipe diameter index, and pipe thickness deviation are obtained by performing maximum-min normalization on the pipe length, pipe diameter, and pipe thickness deviation.

[0064] A basic pipeline model is constructed based on the pipeline length index, pipeline diameter index, and pipeline thickness deviation index. This basic pipeline model is represented as follows:

[0065]

[0066] in, Indicates the foundation coefficient of the pipeline. This indicates the pipe diameter index. Indicates the pipe length index. This indicates the pipe thickness deviation index. Represents the weight coefficient and The The range of values ​​includes , , The Furthermore, the higher the value, the better the compressive strength of the pipeline foundation;

[0067] Import the current pipe length index, current pipe diameter index, and current pipe thickness deviation index into the pipe foundation model to output the current pipe foundation coefficient.

[0068] Among these, maximum-minimum normalization transforms the original parameters linearly to the [0,1] interval to eliminate the incomparability of parameters with different dimensions. Pipe diameter exponent square processing involves performing a quadratic operation on the normalized diameter data, which can be implemented through a numerical calculation module to enhance the nonlinear positive influence of large-diameter pipes on their pressure resistance. Dynamic balancing of weighting coefficients refers to... , , The weighted combination of parameters is used to adjust the contribution of parameters. Specifically, preset empirical values ​​or machine learning training can be used to adapt to the priority differences of each parameter in different engineering scenarios.

[0069] Specifically, pipe length, diameter, and thickness deviations are normalized and converted into standardized indices that can be compared laterally. The pipe diameter index, through squaring, highlights its multiplicative effect on pressure resistance. The length index and thickness deviation index are calculated using... and The format is transformed into a positive index, allowing for a direct increase in the foundation coefficient when the length is shortened and the thickness deviation is reduced. Normalization constraints on the weighting coefficients ensure that the total contribution of each parameter remains constant, preventing any single parameter from excessively dominating the calculation results. The final output pipeline foundation coefficient is quantitatively characterized by the [0,1] interval to assess the compressive strength of the pipeline foundation, providing standardized input for subsequent energy release path analysis.

[0070] Compared with existing technologies, traditional methods only use a single burst pressure test without establishing a coupled analysis model of basic parameters, making it impossible to quantify the synergistic effects of length, diameter, and thickness deviations. This solution, by constructing a multi-parameter normalized model, systematically integrates the nonlinear action mechanism of pipeline basic properties, overcoming the limitations of isolated parameter analysis in traditional testing.

[0071] Through the above technical solutions, this application achieves multi-dimensional quantitative evaluation of pipeline basic properties, effectively improving the accuracy of compressive strength analysis. Standardization eliminates differences in parameter dimensions, and weighting coefficients dynamically balance the varying needs of different engineering scenarios, providing reliable basic data support for subsequent energy release path optimization.

[0072] Preferably, the working steps of the environmental constraint analysis module are as follows:

[0073] The side clamping force, bursting air pressure, standard deviation of air pressure fluctuation (air pressure stability), and pressure rise amplitude are normalized by the maximum-minimum process to obtain the side clamping force index, bursting air pressure index, standard deviation of air pressure fluctuation index, and pressure rise amplitude index.

[0074] An environmental constraint model is constructed based on the lateral clamping force index, the burst pressure index, the pressure fluctuation standard deviation index, and the pressure rise amplitude index. The environmental constraint model is expressed as follows:

[0075]

[0076] in, This represents the environmental constraint coefficient. Indicates the blast pressure index. Indicates the pressure rise index. Indicates the side clamping force index. This represents the standard deviation index of air pressure fluctuations. Represents the weight coefficient and The The range of values ​​includes , , The Furthermore, the larger the value, the better the environmental constraints.

[0077] The current side clamping force index, current burst pressure index, current pressure fluctuation standard deviation index, and current pressure rise index are imported into the environmental constraint model to obtain the current environmental constraint coefficient.

[0078] The maximum-minimum normalization process involves linearly mapping original parameters of different dimensions to the [0,1] interval. Specifically, it can standardize clamping force, air pressure, standard deviation, and pressure rise amplitude using preset parameter threshold ranges to eliminate incomparability between parameters. The side clamping force index is a standardized parameter reflecting the strength of mechanical constraints. It can be calculated by the ratio of the measured clamping force to the preset maximum clamping force, and is used to characterize the pipeline's deformation suppression capability. The burst pressure index is a standardized parameter characterizing the air pressure intensity level. It can be calculated by the ratio of the measured air pressure to the maximum tolerable air pressure, and is used to quantify the direct effect of air pressure on the pipeline. The air pressure fluctuation standard deviation index is a standardized parameter reflecting air pressure stability. It can be calculated by the ratio of the standard deviation to the maximum allowable fluctuation range, and is used to assess the degree of dynamic air pressure disturbance. The pressure rise amplitude index is a standardized parameter describing the rate of pressure rise. It can be calculated by the ratio of the pressure increment per unit time to the preset maximum increment, and is used to characterize the impact effect of the pressure rise process on the pipeline. (Environmental constraint model) The term refers to the product of the rupture pressure and the pressure rise amplitude. It can be calculated through the synergistic effect of the two, and is used to reflect the combined impact of rapid high-pressure loading on the pipeline's pressure resistance. Weighting coefficient. This refers to the contribution allocation factor of each environmental parameter, which can be determined through expert experience or by using the analytic hierarchy process. It is used to balance the weight relationship of different environmental factors on the overall constraints.

[0079] Specifically, the environmental constraint analysis module first transforms clamping force, air pressure intensity, air pressure fluctuation, and pressurization rate into standardized indices through normalization, eliminating the incomparability between parameters with different dimensions. Next, in model construction, the burst pressure index is multiplied by the pressurization amplitude index to reflect the synergistic effect of rapid high-pressure loading on the pipeline's pressure resistance; the air pressure fluctuation standard deviation index is inverted and weighted to reflect the positive contribution of air pressure stability to the constraint conditions; simultaneously, the side clamping force index is treated as an independent term to highlight the inhibitory effect of mechanical constraints on pipeline deformation. Through weight coefficient allocation, the influence weights of different environmental parameters on the overall constraint conditions are balanced, and the final output environmental constraint coefficient can comprehensively characterize the quality of environmental conditions such as clamping force, dynamic air pressure changes, and air pressure stability.

[0080] Compared to existing technologies, traditional methods only use a single environmental parameter for static evaluation, such as measuring only the burst gas pressure or clamping force, without considering the coupling effect between multiple parameters. In contrast, this solution incorporates clamping force, dynamic gas pressure parameters, and gas pressure stability into a unified evaluation system through normalization processing and composite model construction. This enables dynamic analysis of the synergistic effect of rapid gas pressure loading and mechanical constraints, while quantifying the negative impact of gas pressure fluctuations on the pipeline's pressure resistance performance.

[0081] Through the above technical solution, this application solves the problem that traditional detection methods cannot dynamically reflect the coupled effects of environmental factors, and realizes the quantitative analysis of the synergistic effect of clamping force, air pressure intensity, air pressure stability and pressurization rate, providing an accurate environmental constraint assessment basis for energy release path analysis and pipeline diameter-to-thickness ratio optimization.

[0082] Preferably, the working steps of the impact-friction energy release path analysis module are as follows:

[0083] Based on the current average pipeline blast displacement and the current average pipeline blast impact peak value ( ,in, This indicates the peak impact value of the ruptured pipe on the left. A pipeline blasting impact energy model is constructed, representing the peak impact value of the blasted pipeline on the right side. The pipeline blasting impact energy model is then used to output the pipeline blasting impact energy. The pipeline blasting impact energy model is expressed as follows:

[0084]

[0085] in, This indicates the impact energy of a pipeline rupture. This represents the average peak value of the impact from a pipeline rupture. This represents the average displacement during a pipeline rupture. This indicates the displacement of the ruptured pipe on the left. Indicates the displacement of the ruptured pipe on the right;

[0086] A pipeline friction energy dissipation model is constructed based on the average side friction force and average displacement of the pipeline during blasting, and the pipeline friction energy dissipation is obtained. The pipeline friction energy dissipation model is expressed as follows:

[0087]

[0088] in, This indicates energy loss due to pipe friction. This represents the average frictional force of the blasted pipe. This represents the average displacement during a pipeline rupture. This indicates the displacement of the ruptured pipe on the left. Indicates the displacement of the ruptured pipe on the right;

[0089] A blasting energy distribution ratio model is constructed based on the impact energy of pipeline blasting and the energy dissipation due to pipeline friction. The blasting energy distribution ratio is output through the blasting energy distribution ratio model, which is expressed as follows:

[0090]

[0091] in, Indicates the weight of the impact kinetic energy. This indicates the weight of the proportion of energy lost due to friction. This indicates the impact energy of a pipeline rupture. This indicates energy loss due to pipeline friction;

[0092] An impact-friction energy release path analysis model is constructed based on the weights of impact kinetic energy, friction energy consumption, pipeline foundation coefficient, and environmental constraint coefficient. This impact-friction energy release path analysis model is expressed as follows:

[0093]

[0094] in, Indicates the impact-friction energy release path analysis coefficient. Indicates the foundation coefficient of the pipeline. This represents the environmental constraint coefficient. Indicates the weight of the impact kinetic energy. The weighting of the proportion of frictional energy loss is indicated by the following: Furthermore, the larger the value, the better the energy release pathway.

[0095] The pipeline blasting impact energy model quantifies the physical process of impact energy conversion during blasting by multiplying the average impact force and average displacement. This can be achieved by averaging data collected from both sides using symmetrically arranged impact force and displacement sensors. This model eliminates the impact of unilateral measurement errors on energy assessment. The pipeline friction energy dissipation model characterizes the frictional energy dissipation between the clamping mechanism and the pipeline by multiplying the average side friction force and average displacement. This can be achieved by averaging data collected from multiple points using a ring-shaped array of friction force sensors. This model reflects the distribution characteristics of circumferential frictional force in the pipeline. The blasting energy distribution ratio model dynamically allocates the weights of the two energy paths based on the ratio of impact energy to total energy. This can be achieved by normalizing the energy to convert it into a dimensionless proportional parameter. This model reveals the dominant mechanism of the energy release path. The impact-friction energy release path analysis model integrates energy weights with basic attributes and environmental constraints using a weighted fusion method. This can be achieved by integrating multi-source parameters into a single evaluation coefficient using a linear weighting method. This model enables a comprehensive quantitative assessment of energy release efficiency.

[0096] Specifically, during the pipeline blasting test, symmetrically arranged impact force sensors and displacement sensors synchronously collect data from both sides. The impact energy value is obtained by multiplying the average impact force and the average displacement, which eliminates the interference of single-point measurement errors on energy assessment. The friction force sensor array on the side clamping mechanism monitors multi-point circumferential friction force data in real time. The average value is then multiplied by the average displacement to obtain the friction energy dissipation value. This calculation method accurately reflects the energy dissipation characteristics between the pipeline and the clamping mechanism. By normalizing the impact energy and friction energy dissipation, the impact kinetic energy ratio weight and friction energy dissipation ratio weight, representing the energy distribution proportion, are obtained respectively. This processing method dynamically reflects the conversion characteristics of energy release paths at different blasting stages. Finally, the energy weight parameters are linearly weighted with the pipeline foundation coefficient and environmental constraint coefficient to generate analytical coefficients that comprehensively evaluate the merits of the energy release path. These coefficients provide dynamic data support for subsequent diameter-to-thickness ratio optimization.

[0097] Through the above technical solutions, this application can accurately quantify the dynamic distribution ratio of blasting impact energy and frictional energy consumption, effectively identify the dominant mechanism in the energy release path, and provide data support for pipeline structure optimization. By introducing a product model of the average displacement and the average impact force, the energy assessment error problem caused by traditional single-point measurement is solved. By establishing a fusion model of energy weight and multi-source parameters, a comprehensive assessment of the impact of pipeline basic properties and environmental constraints on energy release efficiency is achieved, providing a theoretical basis for diameter-to-thickness ratio optimization.

[0098] Preferably, the pipe diameter-to-thickness ratio optimization model is expressed as:

[0099]

[0100] in, Indicates the target pipe diameter-to-thickness ratio. This indicates the current pipe diameter-to-thickness ratio. Indicates the attenuation coefficient. This represents the threshold for the impact-friction energy release path analysis coefficient. The coefficients representing the impact-friction energy release path analysis are as follows: , Indicates the minimum permissible diameter-to-thickness ratio. This indicates the maximum permissible diameter-to-thickness ratio.

[0101] The target pipe diameter-to-thickness ratio refers to the optimized pipe diameter-to-wall-thickness ratio calculated by the model. This ratio can be dynamically adjusted using an exponential function, reflecting the combined effect of energy release efficiency and safety constraints. The current pipe diameter-to-thickness ratio refers to the original diameter-to-thickness ratio parameter of the pipe to be optimized, which can be calculated by measuring the pipe's outer diameter and wall thickness, serving as the benchmark value for model optimization. The attenuation coefficient is an adjustment parameter controlling the optimization amplitude, typically using empirical values ​​within the range of 0.1-0.5 to balance optimization speed and stability. The impact-friction energy release path analysis coefficient is an indicator quantifying energy release efficiency, obtained through a weighted calculation of impact kinetic energy and friction energy dissipation, characterizing the dynamic features of the pipe's pressure resistance.

[0102] Specifically, the model correlates the current aspect ratio with energy release efficiency using an exponential function. The attenuation coefficient, acting as a moderating term in the exponential function, controls the convergence speed of the optimization process. When... Less than At this time, the model automatically reduces the target diameter-to-thickness ratio to improve compressive strength. The constraint on the range of the target diameter-to-thickness ratio ensures that the calculation results are always within the preset safety range, avoiding the risk of structural failure due to abnormal parameters.

[0103] Compared to existing technologies, traditional methods rely on empirical formulas to directly set the diameter-to-thickness ratio, failing to consider the coupling effect between energy release characteristics and safety constraints during dynamic blasting. This scheme establishes a theoretical model, quantifying energy release efficiency into calculable coefficients, and combines this with safety weights to form a dynamic optimization mechanism. Compared to linear correction methods, the exponential function form more sensitively reflects the impact of energy parameter changes on the diameter-to-thickness ratio, while the range constraint avoids out-of-range optimization problems that may arise from empirical formulas.

[0104] Through the above technical solution, this application solves the problem of insufficient optimization accuracy caused by the reliance on empirical formulas in traditional detection methods. By incorporating energy release path analysis coefficients and safety weights into the calculation model, diameter-to-thickness ratio optimization based on explosive dynamic characteristics is achieved. This model can automatically adjust the optimization range according to actual detection data, avoiding subjective errors caused by manual experience-based adjustments. The calculation results are always limited within the safe range allowed by the project, ensuring that the optimized pipeline structure meets both pressure resistance requirements and safety specifications.

[0105] Preferably, please refer to Figure 2 as well as Figure 3 A pipe pressure resistance testing device further includes: a base 1, an L-shaped base 2, and support plates 4. Two support plates 4 are symmetrically fixedly connected to the base 1. Two L-shaped bases 2 are symmetrically mounted on both sides of the base 1 via linear motion components A3 embedded in the base 1. The device also includes:

[0106] The pipe side clamping mechanism 5 is installed on the support plate 4 and the two sets of support plates 4 are symmetrically arranged relative to the base 1. It is used to clamp and position the pipe 7 and to detect the friction force of the pipe during the explosion.

[0107] Impact force detection mechanism 6 is installed on L-shaped base 2 and two sets of impact force detection mechanisms 6 are symmetrically arranged relative to base 1. It is used to seal the pipe 7 and detect the burst impact force of the pipe 7.

[0108] The displacement detection mechanism is installed on the L-shaped base 2 and two sets of displacement detection mechanisms are symmetrically arranged relative to the base 1. It is used to detect the displacement generated when the pipeline bursts.

[0109] The pipe side clamping mechanism 5 includes a linear motion component B501, an arc plate 502, and a friction sensor 503. Several linear motion components B501 are evenly installed in a ring on the support plate 4. The friction sensor 503 is fixedly connected to the arc plate 502. A pressure sensor is fixedly installed between the output shaft of the linear motion component B501 and the arc plate 502. The purpose of this arrangement is to use the linear motion component B501 to drive the arc plate 502 to drive the friction sensor 503 to clamp the pipe 7, and to use the friction sensor 503 to detect the friction force generated by the displacement of the pipe 7.

[0110] The impact force detection mechanism 6 includes a sealing cylinder 601, an impact force sensor 602, a rod 603, a spring 604, and a nut 605. The sealing cylinder 601 is detachably installed at the end of the pipe 7. One end of the rod 603 is fixedly connected to the impact force sensor 602, which is fixedly connected to the sealing cylinder 601. The other end of the rod 603 passes through the L-shaped base 2 and is threaded with a nut 605. The spring 604 is sleeved on the rod 603. The purpose of this arrangement is to use two sealing cylinders 601 to seal the pipe 7 and to detect the impact force of the pipe 7 bursting into two halves of the pipe 7 through the impact force sensor 602.

[0111] The displacement detection mechanism includes a displacement sensor, which is detachably mounted on an L-shaped base 2 and two displacement sensors are symmetrically arranged relative to the base 1. The purpose of this arrangement is to detect the distance between the two halves of the pipe 7 that has been blasted apart.

[0112] Preferably, a pressure sensor is installed inside the pipe 7 to detect the pressure inside the pipe 7.

[0113] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.

[0114] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the compressive strength of pipelines, characterized in that, Includes a pressure resistance analysis system for analyzing the burst pressure resistance of pipelines, including: The pipeline foundation analysis module constructs a pipeline foundation model based on pipeline length, pipeline diameter, and pipeline thickness deviation, and outputs pipeline foundation coefficients through the pipeline foundation model. The environmental constraint analysis module constructs an environmental constraint model based on the pipe side clamping force, burst gas pressure, standard deviation of gas pressure fluctuation, and pressure rise amplitude, and outputs environmental constraint coefficients through the environmental constraint model. The impact-friction energy release path analysis module constructs an impact-friction energy release path analysis model based on the average displacement of pipeline bursting, the peak impact value of pipeline bursting, and the average friction force on the side of pipeline bursting under pipeline foundation coefficients and environmental constraint coefficients. The impact-friction energy release path analysis model outputs impact-friction energy release path analysis coefficients. The pipe diameter-to-thickness ratio optimization module constructs a pipe diameter-to-thickness ratio optimization model based on the impact-friction energy release path analysis coefficient and the current pipe diameter-to-thickness ratio, and outputs the target pipe diameter-to-thickness ratio through the pipe diameter-to-thickness ratio optimization model.

2. The pipeline compressive strength testing device according to claim 1, characterized in that, The pipe diameter-to-thickness ratio optimization model is expressed as follows: in, Indicates the target pipe diameter-to-thickness ratio. This indicates the current pipe diameter-to-thickness ratio. Indicates the attenuation coefficient. This represents the threshold for the impact-friction energy release path analysis coefficient. The coefficients representing the impact-friction energy release path analysis are as follows: , Indicates the minimum permissible diameter-to-thickness ratio. This indicates the maximum permissible diameter-to-thickness ratio.

3. The pipeline compressive strength testing device according to claim 2, characterized in that, The working steps of the impact-friction energy release path analysis module are as follows: Based on the current average pipeline blast displacement and the current average pipeline blast impact peak value A pipeline blasting impact energy model is constructed, and the pipeline blasting impact energy is output through this model. This indicates the peak impact value of the ruptured pipe on the left. This represents the peak impact value of the right-side blasted pipeline. The pipeline blast impact energy model is expressed as follows: in, This indicates the impact energy of a pipeline rupture. This represents the average peak value of the impact from a pipeline rupture. This represents the average displacement during a pipeline rupture. This indicates the displacement of the ruptured pipe on the left. Indicates the displacement of the ruptured pipe on the right; A pipeline friction energy dissipation model is constructed based on the average side friction force and average displacement of the pipeline during blasting, and the pipeline friction energy dissipation is obtained. The pipeline friction energy dissipation model is expressed as follows: in, This indicates energy loss due to pipe friction. This represents the average frictional force of the blasted pipe. This represents the average displacement during a pipeline rupture. This indicates the displacement of the ruptured pipe on the left. Indicates the displacement of the ruptured pipe on the right; A blasting energy distribution ratio model is constructed based on the impact energy of pipeline blasting and the energy dissipation due to pipeline friction. The blasting energy distribution ratio is output through the blasting energy distribution ratio model, which is expressed as follows: in, Indicates the weight of the impact kinetic energy. This indicates the weight of the proportion of energy lost due to friction. This indicates the impact energy of a pipeline rupture. This indicates energy loss due to pipeline friction; An impact-friction energy release path analysis model is constructed based on the weights of impact kinetic energy, friction energy consumption, pipeline foundation coefficient, and environmental constraint coefficient. This impact-friction energy release path analysis model is expressed as follows: in, Indicates the impact-friction energy release path analysis coefficient. Indicates the foundation coefficient of the pipeline. This represents the environmental constraint coefficient. Indicates the weight of the impact kinetic energy. The weighting of the proportion of frictional energy loss is indicated by the following: Furthermore, the larger the value, the better the energy release pathway.

4. The pipeline compressive strength testing device according to claim 3, characterized in that, The working steps of the pipeline basic analysis module are as follows: The pipe length index, pipe diameter index, and pipe thickness deviation are obtained by performing maximum-min normalization on the pipe length, pipe diameter, and pipe thickness deviation. A basic pipeline model is constructed based on the pipeline length index, pipeline diameter index, and pipeline thickness deviation index. This basic pipeline model is represented as follows: in, Indicates the foundation coefficient of the pipeline. This indicates the pipe diameter index. Indicates the pipe length index. This indicates the pipe thickness deviation index. Represents the weight coefficient and The The range of values ​​includes , , The Furthermore, the higher the value, the better the compressive strength of the pipeline foundation; Import the current pipe length index, current pipe diameter index, and current pipe thickness deviation index into the pipe foundation model to output the current pipe foundation coefficient.

5. The pipeline compressive strength testing device according to claim 3, characterized in that, The working steps of the environmental constraint analysis module are as follows: The side clamping force, bursting air pressure, standard deviation of air pressure fluctuation, and pressure rise amplitude of the pipeline are subjected to maximum-minimum normalization to obtain the side clamping force index, bursting air pressure index, standard deviation of air pressure fluctuation index, and pressure rise amplitude index. An environmental constraint model is constructed based on the lateral clamping force index, the burst pressure index, the pressure fluctuation standard deviation index, and the pressure rise amplitude index. The environmental constraint model is expressed as follows: in, This represents the environmental constraint coefficient. Indicates the blast pressure index. Indicates the pressure rise index. Indicates the side clamping force index. This represents the standard deviation index of air pressure fluctuations. Represents the weight coefficient and The The range of values ​​includes , , The Furthermore, the larger the value, the better the environmental constraints. The current side clamping force index, current burst pressure index, current pressure fluctuation standard deviation index, and current pressure rise index are imported into the environmental constraint model to obtain the current environmental constraint coefficient.

6. The pipeline compressive strength testing device according to any one of claims 1-5, characterized in that, Also includes: The base, L-shaped bases, and support plates, with two support plates symmetrically fixedly connected to the base, and two L-shaped bases symmetrically mounted on both sides of the base via linear motion components A embedded in and mounted on the base, also include: The pipe side clamping mechanism is mounted on the support plate and the two sets of support plates are symmetrically arranged relative to the base. It is used to clamp and position the pipe and to detect the friction force of the pipe during the explosion. The impact force testing mechanism is installed on an L-shaped base, with two sets of impact force testing mechanisms symmetrically arranged relative to the base. It is used to test the sealing of pipelines and the impact force of pipeline bursts. The displacement detection mechanism is installed on an L-shaped base, with two sets of displacement detection mechanisms symmetrically arranged relative to the base, and is used to detect the displacement generated during pipeline bursting.

7. The pipeline compressive strength testing device according to claim 6, characterized in that, The pipe side clamping mechanism includes a linear motion component B, an arc plate, and a friction sensor. Several linear motion components B are evenly mounted in a ring on the support plate. The friction sensor is fixedly connected to the arc plate. A pressure sensor is fixedly installed between the output shaft of the linear motion component B and the arc plate.

8. The pipeline compressive strength testing device according to claim 6, characterized in that, The impact force detection mechanism includes a sealing cylinder, an impact force sensor, a rod, a spring, and a nut. The sealing cylinder is detachably installed at the end of the pipe. One end of the rod is fixedly connected to the impact force sensor, which is fixedly connected to the sealing cylinder. The other end of the rod passes through an L-shaped base and is threaded with a nut. A spring is sleeved on the rod.

9. The pipeline compressive strength testing device according to claim 6, characterized in that, The displacement detection mechanism includes a displacement sensor, which is detachably mounted on an L-shaped base and two displacement sensors are symmetrically arranged relative to the base.

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