Pipeline girth weld parameter range determination method and device, electronic equipment and storage medium

Abstract

The application discloses a pipeline girth weld parameter value range determination method and device, electronic equipment and a storage medium. The method comprises the following steps: obtaining a plurality of target influence parameters of a pipeline girth weld and corresponding parameter values thereof; obtaining a groove type of the pipeline girth weld, determining a preset adjustment coefficient according to the groove type, determining a first parameter value according to a parameter value of a first influence parameter and a corresponding preset adjustment coefficient, and determining a second parameter value according to a parameter value of a second influence parameter and a corresponding preset adjustment coefficient; determining a target working condition corresponding to the pipeline girth weld, determining a target working condition corresponding to the pipeline girth weld, determining a strain upper limit value of a strain parameter of the pipeline girth weld according to the target working condition; and determining a target value range of an unknown parameter value according to the first parameter value, the second parameter value, the strain upper limit value and a preset strain prediction model, so that the design of the welded joint can not only meet the requirements of structural safety and durability, but also effectively reduce the risks caused by material and process uncertainty.

Description

Technical Field

[0001] This invention relates to the field of oil and gas pipeline welding, and in particular to a method, apparatus, electronic device, and storage medium for determining the range of values ​​for pipeline circumferential weld parameters. Background Technology

[0002] In energy transportation systems such as oil and natural gas, as well as numerous industrial pipeline systems, the quality and performance of pipeline circumferential welds are crucial. Different bevel types, welding processes, and actual operating conditions all significantly affect weld quality, and the complex relationships between these factors cannot be accurately grasped through simple rules of thumb or single-parameter evaluation.

[0003] The detection and evaluation methods in related technologies often fail to fully and accurately consider these complex and interrelated factors, resulting in limitations in the parameter analysis and judgment of pipeline circumferential welds. Summary of the Invention

[0004] This invention provides a method, apparatus, electronic device, and storage medium for determining the value range of pipeline circumferential weld parameters, which solves the problem in related technologies where it is difficult to accurately determine the value range of unknown pipeline circumferential weld parameters by considering multiple influencing factors.

[0005] According to one aspect of the present invention, a method for determining the range of values ​​for parameters of a pipe circumferential weld is provided, comprising:

[0006] Multiple target influence parameters and their corresponding parameter values ​​of the pipeline circumferential weld are obtained. The target influence parameters include a first influence parameter and a second influence parameter. The first influence parameter is a factor that affects the performance of the pipeline circumferential weld material. The second influence parameter is a parameter of the strain capacity load and geometric influence of the pipeline circumferential weld. The parameter values ​​include known parameter values ​​and unknown parameter values.

[0007] Obtain the bevel type of the pipe circumferential weld, determine the preset adjustment coefficient related to each of the target influence parameters according to the bevel type, determine the first parameter value according to the parameter value of the first influence parameter and its corresponding preset adjustment coefficient, and determine the second parameter value according to the parameter value of the second influence parameter and its corresponding preset adjustment coefficient.

[0008] Determine the target working condition corresponding to the circumferential weld of the pipeline, and determine the upper limit of the strain parameter of the circumferential weld of the pipeline based on the target working condition;

[0009] The target range of the unknown parameter value is determined based on the first parameter value, the second parameter value, the upper limit of strain value, and a preset strain prediction model. The strain prediction model is used to characterize the functional relationship between the first influencing parameter, the second influencing parameter, and the strain capacity of the circumferential weld. The upper limit of strain value is not greater than the strain capacity of the circumferential weld.

[0010] According to another aspect of the present invention, a device for determining the range of values ​​for parameters of a pipe circumferential weld is provided, comprising:

[0011] The acquisition module is used to acquire multiple target influence parameters of the pipeline circumferential weld and their corresponding parameter values. The target influence parameters include a first influence parameter and a second influence parameter. The first influence parameter is a factor that affects the performance of the pipeline circumferential weld material. The second influence parameter is a parameter of the strain capacity load and geometric influence of the pipeline circumferential weld. The parameter values ​​include known parameter values ​​and unknown parameter values.

[0012] The parameter value determination module is used to obtain the bevel type of the pipe circumferential weld, determine the preset adjustment coefficient related to each of the target influence parameters according to the bevel type, determine the first parameter value according to the parameter value of the first influence parameter and its corresponding preset adjustment coefficient, and determine the second parameter value according to the parameter value of the second influence parameter and its corresponding preset adjustment coefficient.

[0013] The strain upper limit determination module is used to determine the target working condition corresponding to the pipeline circumferential weld, and determine the strain upper limit value of the strain parameter of the pipeline circumferential weld based on the target working condition;

[0014] The value range determination module is used to determine the target value range of the unknown parameter value based on the first parameter value, the second parameter value, the strain upper limit value and the preset strain prediction model, wherein the strain prediction model is used to characterize the functional relationship between the first influencing parameter, the second influencing parameter and the strain capacity of the circumferential weld, and the strain upper limit value is not greater than the strain capacity of the circumferential weld.

[0015] According to another aspect of the present invention, an electronic device is provided, the electronic device comprising:

[0016] At least one processor; and

[0017] A memory communicatively connected to the at least one processor; wherein,

[0018] The memory stores a computer program that can be executed by the at least one processor, which is then executed by the at least one processor to enable the at least one processor to perform the method for determining the range of values ​​for pipe circumferential weld parameters according to any embodiment of the present invention.

[0019] According to another aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium storing computer instructions, the computer instructions being configured to cause a processor to execute and implement the method for determining the range of values ​​of pipe circumferential weld parameters as described in any embodiment of the present invention.

[0020] The technical solution of this invention firstly involves acquiring multiple target influence parameters of the pipeline circumferential weld and their corresponding parameter values. Since the target influence parameters include a first influence parameter and a second influence parameter, the first influence parameter is a factor affecting the performance of the pipeline circumferential weld material, and the second influence parameter is a parameter related to the strain capacity load and geometric influence of the pipeline circumferential weld. The parameter values ​​include known and unknown parameter values. Acquiring and integrating the values ​​of the first and second influence parameters provides data support for accurately evaluating the material properties and strain capacity of the pipeline circumferential weld. Next, the bevel type of the pipeline circumferential weld is acquired. Based on the bevel type, a preset adjustment coefficient related to each target influence parameter is determined. A first parameter value is determined based on the parameter value of the first influence parameter and its corresponding preset adjustment coefficient. A second parameter value is determined based on the parameter value of the second influence parameter and its corresponding preset adjustment coefficient. By determining the bevel type and the corresponding preset adjustment coefficient, the first and second parameter values ​​can be accurately calculated, effectively quantifying the material properties and strain capacity of the pipeline circumferential weld. Then… By determining the target operating condition corresponding to the circumferential weld of the pipeline, and based on the target operating condition, determining the upper limit of the strain parameters of the circumferential weld, the target operating condition and the upper limit of the strain can be determined, accurately assessing the maximum deformation capacity of the circumferential weld under actual working conditions, ensuring structural safety and durability, and effectively preventing overload failure. Finally, based on the first parameter value, the second parameter value, the upper limit of the strain, and a preset strain prediction model, the target range of the unknown parameter value is determined. The strain prediction model is used to characterize the functional relationship between the first influencing parameter, the second influencing parameter, and the strain capacity of the circumferential weld. The upper limit of the strain is not greater than the strain capacity of the circumferential weld. By integrating the first parameter value, the second parameter value, and the upper limit of the strain using the strain prediction model, the target range of the unknown parameter value is determined, and the selection of design parameters is optimized. This solves the problem in related technologies where it is difficult to consider multiple influencing factors to accurately determine the range of unknown pipeline circumferential weld parameters, ensuring that the design of the welded joint not only meets the requirements of structural safety and durability, but also effectively reduces the risks caused by uncertainties in materials and processes.

[0021] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a flowchart of a method for determining the value range of parameters for a pipe circumferential weld according to Embodiment 1 of the present invention;

[0024] Figure 2 This is a schematic diagram illustrating the determination of the first parameter value in a method for determining the range of parameters for a pipe circumferential weld according to an embodiment of the present invention.

[0025] Figure 3 This is a schematic diagram illustrating the determination of the second parameter value in a method for determining the range of parameters for a pipe circumferential weld according to an embodiment of the present invention.

[0026] Figure 4 This is a schematic diagram of the automatic welding standard narrow groove form and geometric parameters of a method for determining the value range of pipeline circumferential weld parameters according to an embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the combined automatic weld width bevel form and geometric parameters of a method for determining the value range of pipe circumferential weld parameters according to an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram illustrating an example of determining material performance parameters using a method for determining the value range of parameters for a pipe circumferential weld according to an embodiment of the present invention.

[0029] Figure 7 This is a schematic diagram illustrating an example of a method for determining the range of values ​​for pipe circumferential weld parameters according to an embodiment of the present invention, which determines parameters related to strain capacity load and geometric influence.

[0030] Figure 8 This is a schematic diagram of a device for determining the range of parameters of a pipe circumferential weld according to Embodiment 3 of the present invention;

[0031] Figure 9 This is a schematic diagram of the structure of an electronic device for implementing the method for determining the range of values ​​of pipe circumferential weld parameters according to an embodiment of the present invention. Detailed Implementation

[0032] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0033] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0034] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0035] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0036] It is understood that before using the technical solutions disclosed in the various embodiments of this disclosure, users should be informed of the types, scope of use, and usage scenarios of the personal information involved in this disclosure in an appropriate manner in accordance with relevant laws and regulations, and user authorization should be obtained.

[0037] For example, upon receiving a user's active request, a prompt message is sent to the user to explicitly inform them that the requested operation will require the acquisition and use of the user's personal information. This allows the user to independently choose whether to provide personal information to the software or hardware, such as the electronic device, application, server, or storage medium performing the operations of this disclosed technical solution, based on the prompt message.

[0038] As an optional but non-limiting implementation, in response to a user's active request, sending a prompt message to the user can be done via a pop-up window, where the prompt message can be presented in text format. Furthermore, the pop-up window can also include a selection control allowing the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0039] It is understood that the above notification and user authorization process are merely illustrative and do not constitute a limitation on the implementation of this disclosure. Other methods that comply with relevant laws and regulations may also be applied to the implementation of this disclosure.

[0040] It is understood that the data involved in this technical solution (including but not limited to the data itself, the acquisition or use of the data) shall comply with the requirements of relevant laws, regulations and related provisions.

[0041] Example 1

[0042] Figure 1 This invention provides a flowchart of a method for determining the value range of pipeline circumferential weld parameters according to Embodiment 1. This embodiment is applicable to engineering design and construction situations where the performance of pipeline circumferential welds is accurately evaluated and optimized to ensure structural safety and durability. The method can be executed by a device for determining the value range of pipeline circumferential weld parameters. This device can be implemented in hardware and / or software, and optionally, it can be implemented through electronic devices, such as mobile terminals, PCs, or servers.

[0043] like Figure 1 As shown, the method may specifically include:

[0044] S110. Obtain multiple target influence parameters of the pipeline circumferential weld and their corresponding parameter values, wherein the target influence parameters include a first influence parameter and a second influence parameter, the first influence parameter is a factor that affects the performance of the pipeline circumferential weld material, and the second influence parameter is a parameter of the strain capacity load and geometric influence of the pipeline circumferential weld, and the parameter values ​​include known parameter values ​​and unknown parameter values.

[0045] The circumferential weld of the pipeline can be understood as a ring-shaped welded joint at the connection of pipelines, used to connect the ends of two pipeline sections. The strength and reliability of the circumferential weld directly affect the overall safety and service life of the pipeline. The target influencing parameters can be understood as a set of physical or geometric parameters that affect the performance of the circumferential weld. The target influencing parameters include at least a first influencing parameter and a second influencing parameter. The first influencing parameter can be understood as a factor that directly affects the performance of the weld material. By optimizing the first influencing parameter, the physical and mechanical properties of the weld can be improved, thereby enhancing its durability and reliability. The second influencing parameter can be understood as a factor related to the strain capacity load and geometry of the circumferential weld. By determining the second influencing parameter, it is helpful to evaluate the performance of the weld under actual working conditions and ensure that it can withstand the expected stress and deformation. The parameter values ​​can be understood as the specific values ​​of the first and second influencing parameters, divided into known parameter values ​​and unknown parameter values. The known parameter values ​​are used for model initialization, and the unknown parameter values ​​need to be calculated to determine their range, ultimately forming a complete parameter set to support design verification.

[0046] Based on the above scheme, obtaining multiple target influence parameters and their corresponding parameter values ​​of the pipeline circumferential weld includes at least: using sensors to detect the welding area of ​​the pipeline circumferential weld to obtain multiple target influence parameters and their corresponding parameter values; determining multiple target influence parameters and their corresponding parameter values ​​through historical welding data; establishing a parameterized model to associate the target influence parameters with the welding parameter values, etc.

[0047] S120. Obtain the bevel type of the pipe circumferential weld, determine the preset adjustment coefficient related to each of the target influence parameters according to the bevel type, determine the first parameter value according to the parameter value of the first influence parameter and its corresponding preset adjustment coefficient, and determine the second parameter value according to the parameter value of the second influence parameter and its corresponding preset adjustment coefficient.

[0048] The bevel type can be understood as the method of processing the pipe edge before welding at the pipe end. Different bevel types affect the welding quality and efficiency; selecting a suitable bevel type can improve welding quality. The preset adjustment coefficient can be understood as a correction coefficient for each target influencing parameter determined based on the bevel type. By applying the preset adjustment coefficient, the parameter values ​​are adjusted to more accurately reflect the actual situation. The first parameter value can be understood as the actual value determined based on the first influencing parameter and its corresponding preset adjustment coefficient. The second parameter value can be understood as the actual value determined based on the second influencing parameter and its corresponding preset adjustment coefficient.

[0049] Based on the above scheme, optionally, the first influencing parameter includes at least fracture toughness parameter, yield strength ratio parameter, strength matching parameter, and heat-affected zone softening rate parameter, etc., and the value of the first parameter is determined based on the first influencing parameter and its corresponding preset adjustment coefficient according to the following formula:

[0050]

[0051] Where X represents the first parameter value; β is the first preset parameter; δ A λ represents the fracture toughness parameter; M represents the yield strength ratio parameter; y Indicates the strength matching parameter; M s Indicates the softening rate parameter of the heat-affected zone; g6-g 16 These represent the preset adjustment coefficients of the corresponding first influencing parameter.

[0052] The fracture toughness parameter can be understood as a physical quantity that measures a material's ability to resist crack propagation. For pipe circumferential welds, higher fracture toughness means that the weld can maintain good integrity even with defects, reducing the risk of failure due to the propagation of microcracks. The yield strength ratio parameter can be understood as the ratio of a material's yield strength to its tensile strength, used to characterize the material's transition from elastic deformation to plastic deformation. The strength matching parameter can be understood as the degree of strength difference between the base material and the weld metal at the weld joint. A suitable strength matching parameter can ensure the overall performance of the weld joint and avoid early failure due to local stress concentration or weakened areas. The heat-affected zone softening rate parameter can be understood as the degree of decrease in the hardness of the material in the heat-affected zone caused by heat input during welding. The heat-affected zone softening rate parameter can affect the mechanical properties of the weld and its surrounding area, such as strength and toughness. The first preset parameter can be understood as a preset standard reference value. For example, the value of β can be 1.

[0053] By adopting this technical solution, the first influencing parameters such as fracture toughness, yield strength ratio, strength matching, and softening rate of heat-affected zone are considered and corrected by applying corresponding preset adjustment coefficients to determine the value of the first parameter. This not only improves the accuracy of the performance evaluation of pipeline circumferential weld materials, but also effectively reflects the welding quality and reliability under actual working conditions.

[0054] Based on the above solution, optionally, determining the first parameter value based on the parameter value of the first influencing parameter and its corresponding preset adjustment coefficient may further include: determining the first parameter value by summing the product of the preset adjustment coefficient and the parameter value with a preset first error adjustment factor. By employing this technical solution, the accuracy of the evaluation is improved, potential errors are effectively compensated, and the reliability of the welded joint performance evaluation and the scientific nature of the design optimization are ensured through multiplying the first influencing parameter by the preset adjustment coefficient and summing it with the first error adjustment factor.

[0055] The first error adjustment factor can be understood as a pre-set value used to compensate for errors in the calculation of the first parameter value.

[0056] Based on the above solution, optionally, determining the second parameter value based on the parameter value of the second influencing parameter and its corresponding preset adjustment coefficient may further include: determining the second parameter value by summing the product of the preset adjustment coefficient and the parameter value with a preset second error adjustment factor. By employing this technical solution, the accuracy of assessing the geometry and strain capacity of welded joints is effectively improved by multiplying the second influencing parameter by the preset adjustment coefficient and summing it with the second error adjustment factor. This compensates for potential errors, ensures the reliability and safety of design and construction, and enhances the overall performance of the engineering structure.

[0057] The second error adjustment factor can be understood as a pre-set value used to compensate for errors in the process of calculating the second parameter value.

[0058] Based on the above scheme, optionally, the second influencing parameter includes at least the misalignment parameter, crack depth parameter, wall thickness parameter, heat-affected zone width parameter, standard wall thickness, pipe wall thickness, and internal pressure design coefficient, etc., and the value of the second parameter is determined based on the following formula according to the second influencing parameter and its corresponding preset adjustment coefficient:

[0059]

[0060] Where Y is the value of the second parameter; Indicates the offset edge parameter; Indicates the crack depth parameter; θ represents the crack length parameter, and θ represents a preset coefficient. Indicates the wall thickness parameter; The parameter represents the width of the heat-affected zone; t0 represents the preset wall thickness; t represents the pipe wall thickness; f p Indicates the internal pressure design coefficients; g1-g5 and g 17 -g 28These represent the preset adjustment coefficients of the second influencing parameter corresponding to them.

[0061] The misalignment parameter can be understood as the degree of misalignment between the edges of two weldments during welding, usually expressed in dimensionless form. It is one of the indicators for evaluating weld quality; excessive misalignment can lead to stress concentration and reduce joint strength. The crack depth parameter can be understood as the distance a crack extends from the surface into the interior of the pipe ring weld material. The crack depth parameter is used to assess the impact of cracks on the structural integrity of the joint. The preset parameter can be understood as a preset coefficient value. For example, θ can be 2. The wall thickness parameter can be understood as the thickness of the pipe ring wall, used to quantify the overall strength and pressure resistance of the pipe ring. The heat-affected zone width parameter can be understood as the width of the area where material properties change due to heat input during welding, helping to control weld quality and avoid early failure due to local softening or hardening. The preset wall thickness can be understood as the pipe wall thickness defined by specifications or standardization, used as a design benchmark. For example, t0 can be 22mm. The pipe wall thickness can be understood as the actual thickness of the pipe wall, directly affecting the load-bearing capacity and service life of the pipeline system. The internal pressure design factor can be understood as the safety margin required to calculate the internal pressure of a pipeline, which is used to ensure that the pipeline can operate safely without leakage or rupture under given working conditions.

[0062] By adopting this technical solution, the second influencing parameters such as misalignment parameters, crack depth, wall thickness, heat-affected zone width, standard wall thickness, pipe wall thickness, and internal pressure design coefficient are considered and corrected by applying corresponding preset adjustment coefficients. This not only improves the accuracy of assessing the geometric characteristics and strain capacity of the pipe circumferential weld, but also effectively reflects the welding quality and structural reliability under actual working conditions.

[0063] Based on the above scheme, optionally, before obtaining the bevel type of the pipe circumferential weld, the method further includes: determining the area width of the heat-affected zone of the pipe circumferential weld, and determining the bevel type of the pipe circumferential weld based on the area width and the width range corresponding to the preset bevel type.

[0064] The width of the heat-affected zone (HAZ) can be understood as the area where the microstructure of the material changes due to high temperatures during welding. The HAZ may exhibit changes in hardness or reduced toughness, thus affecting the safety and durability of the entire welded structure. Determining the width of the HAZ allows for better control of the welding process and ensures welding quality. The width range can be understood as the allowable HAZ size range for different bevel types. Selecting a suitable bevel type and corresponding width range ensures both welding quality and efficiency. Bevel types may include, but are not limited to, standard narrow bevels for automated welding and combined wide bevels for automated welding. The standard narrow bevel for automated welding is characterized by its narrow width. This type helps reduce the amount of filler material used and speeds up welding. Standard narrow bevels are suitable for applications requiring efficient and high-quality welding. Because its design allows for more precise control of the welding process, it improves production efficiency and reduces heat input, thereby reducing the size of the HAZ and improving the overall performance of the welded joint. The combined automatic welding wide bevel, as understood, has a larger opening angle and width compared to the standard narrow bevel. It is typically used for thick-walled pipes or applications requiring higher strength connections and may include multiple weld layers to ensure full fusion. The combined automatic welding wide bevel is suitable for welding tasks that require handling greater thickness variations or higher strength. By providing sufficient space for good fusion, it ensures the quality and reliability of the weld joint. Furthermore, the combined automatic welding wide bevel helps disperse welding stress, reducing the risk of crack formation.

[0065] By adopting this technical solution, the width of the heat-affected zone of the pipe circumferential weld is first determined, and then a suitable bevel type is selected based on this width and the width range of the preset bevel type. The corresponding preset adjustment coefficient can be determined according to the bevel type, which can effectively control the heat input during the welding process, reduce the size of the heat-affected zone, optimize the welding quality, ensure the joint strength and toughness, and thus improve the safety and reliability of the overall welded structure.

[0066] S130. Determine the target working condition corresponding to the circumferential weld of the pipeline, and determine the upper limit of the strain parameter of the circumferential weld of the pipeline based on the target working condition.

[0067] The target operating condition can be understood as the combination of extreme loads (such as earthquakes, frozen soil displacement, or internal pressure fluctuations) that the pipeline system may encounter during its operation. The target operating condition can define analytical boundary conditions to ensure that the parameter optimization results meet actual engineering requirements. The strain parameter can be understood as a physical quantity used to describe the deformation characteristics of the welded joint under stress. The upper limit of strain can be understood as the maximum tensile strain reached by the circumferential weld of the pipeline, determined based on the target operating condition. This upper limit of strain serves as a key safety indicator, ensuring that the weld does not crack or deform excessively under the ultimate load of the target operating condition.

[0068] Based on the above scheme, optionally, after determining the upper limit of the strain parameter of the pipe circumferential weld under the preset working conditions, the method further includes: determining a strain curve based on the upper limit of the strain and a rectangular coordinate system, and determining a second range of values ​​for the target influence parameter that satisfies the upper limit of the strain based on the area enclosed by the coordinate axes of the strain curve and the rectangular coordinate system.

[0069] The strain curve can be understood as a curve plotted in a Cartesian coordinate system that represents the relationship between the upper limit of strain and the values ​​of the first and second parameters. The enclosed region can be understood as the area bounded by the strain curve and the coordinate axes of the Cartesian coordinate system. The enclosed region reflects the range of parameter values ​​for the first and second influencing parameters under specific conditions and is an important basis for evaluating the safety of pipe circumferential welds.

[0070] By adopting this technical solution, after determining the upper limit of strain, a strain curve is plotted, and a rectangular coordinate system is used to determine the region enclosed by the strain curve and the coordinate axes. This allows for the determination of the second range of values ​​for the target influence parameter that satisfies the upper limit of strain. This enables accurate evaluation of the deformation behavior of the pipe circumferential weld under actual working conditions, optimization of design parameter selection, ensuring structural safety and durability, and effectively reducing the risk of failure.

[0071] S140. Determine the target range of the unknown parameter value based on the first parameter value, the second parameter value, the upper limit of strain value, and the preset strain prediction model, wherein the strain prediction model is used to characterize the functional relationship between the first influencing parameter, the second influencing parameter, and the strain capacity of the circumferential weld, and the upper limit of strain value is not greater than the strain capacity of the circumferential weld.

[0072] The strain prediction model can be understood as a mathematical model describing the relationship between the first influencing parameter, the second influencing parameter, and the strain upper limit. This model predicts the weld strain distribution by coupling material parameters, geometric parameters, and load conditions, and supports the inverse solution of parameters. The target value range can be understood as the feasible solution interval where the unknown parameters satisfy the strain upper limit constraint. This target value range can provide a quantitative basis for welding process optimization and non-destructive testing threshold setting, ensuring that the design complies with safety specifications. The circumferential weld strain capacity can be understood as the maximum tensile strain that the pipe circumferential weld can withstand.

[0073] Based on the above scheme, optionally, determining the target value range of the unknown parameter value according to the first parameter value, the second parameter value, the strain upper limit value, and the preset strain prediction model includes: determining the restricted value range of the first influencing parameter or the second influencing parameter that includes the unknown parameter value according to the first parameter value, the second parameter value, the strain upper limit value, and the preset strain prediction model; and determining the target value range of the unknown parameter value according to the restricted value range of the first influencing parameter or the second influencing parameter that includes the unknown parameter value.

[0074] The restricted value range can be understood as the approximate range of the first or second parameter value, including the unknown parameter value, initially determined based on the first or second parameter value, the upper limit of strain, and a preset strain prediction model. If the first influencing parameter includes the unknown parameter value 'a', then the first parameter value can be the product of a constant and 'a', and the restricted value range is the range of values ​​for the product of the constant and 'a'. For example... Figure 2 and Figure 3 As shown, the value of the first parameter or the value of the second parameter can be determined based on the known quantity, and the range of values ​​for the other parameter can be obtained based on the first parameter or the value of the second parameter in the specific numerical result.

[0075] By integrating the first parameter value, the second parameter value, and the upper limit of strain, and using a preset strain prediction model, this technical solution first determines the limited range of the first or second parameter value containing unknown parameters, and then determines the target range of the unknown parameter value. This can accurately quantify the effect of each influencing factor on the performance of the pipe circumferential weld, ensure that the design parameters are optimized within the safety limits, and effectively improve the safety and reliability of the welded joint.

[0076] Based on the above scheme, optionally,

[0077] The strain prediction model is based on the following formula:

[0078]

[0079] Where TSC represents the strain capacity of the circumferential weld; X represents the first parameter value; and Y represents the second parameter value.

[0080] The upper limit of strain ε r The strain capacity (TSC) of the circumferential weld shall not exceed the strain capacity (TSC) of the circumferential weld, and shall satisfy the following formula:

[0081]

[0082] Where TSC represents the strain capacity of the circumferential weld; ε r This represents the upper limit of strain.

[0083] The first parameter value and the second parameter value are inversely proportional.

[0084] By adopting this technical solution, the upper limit of strain, the first parameter value, and the second parameter value are integrated through the strain prediction model formula to determine the target value range of unknown parameters, thereby improving the accuracy of the evaluation and ensuring that the design of the welded joint is both safe and reliable.

[0085] The technical solution of this invention firstly involves acquiring multiple target influence parameters of the pipeline circumferential weld and their corresponding parameter values. Since the target influence parameters include a first influence parameter and a second influence parameter, the first influence parameter is a factor affecting the performance of the pipeline circumferential weld material, and the second influence parameter is a parameter related to the strain capacity load and geometric influence of the pipeline circumferential weld. The parameter values ​​include known and unknown parameter values. Acquiring and integrating the values ​​of the first and second influence parameters provides data support for accurately evaluating the material properties and strain capacity of the pipeline circumferential weld. Next, the bevel type of the pipeline circumferential weld is acquired. Based on the bevel type, a preset adjustment coefficient related to each target influence parameter is determined. A first parameter value is determined based on the parameter value of the first influence parameter and its corresponding preset adjustment coefficient. A second parameter value is determined based on the parameter value of the second influence parameter and its corresponding preset adjustment coefficient. By determining the bevel type and the corresponding preset adjustment coefficient, the first and second parameter values ​​can be accurately calculated, effectively quantifying the material properties of the pipeline circumferential weld. The process involves several steps: first, determining the material properties and strain capacity; second, identifying the target operating condition corresponding to the pipe circumferential weld; and third, determining the upper limit of the strain parameters of the pipe circumferential weld based on the target operating condition. This allows for the determination of the target operating condition and the setting of the upper limit of the strain, accurately assessing the maximum deformation capacity of the pipe circumferential weld under actual working conditions, ensuring structural safety and durability, and effectively preventing overload failure. Finally, the process involves determining the target range of the unknown parameter value based on the first parameter value, the second parameter value, the upper limit of the strain, and a preset strain prediction model. Since the strain prediction model is used to characterize the functional relationship between the first influencing parameter, the second influencing parameter, and the upper limit of the strain, integrating the first parameter value, the second parameter value, and the upper limit of the strain using the strain prediction model determines the target range of the unknown parameter value, optimizes the selection of design parameters, and solves the problem in related technologies where it is difficult to consider multiple influencing factors to accurately determine the range of unknown pipe circumferential weld parameters. This ensures that the design of the welded joint not only meets the requirements of structural safety and durability but also effectively reduces the risks caused by uncertainties in materials and processes.

[0086] Example 2

[0087] The flowchart of a method for determining the value range of pipeline circumferential weld parameters provided in Embodiment 2 of the present invention is an optional embodiment of the above embodiments. The description takes an automatic welding standard narrow bevel as an example.

[0088] (1) Based on research into practical engineering experience, industry experience, and design contingency requirements, the engineering requirements ε of this case study are determined. r (%) is 0.5%;

[0089] (2) The strain prediction model TSC (strain capacity of pipe circumferential weld) for pipe circumferential welds is summarized and organized as follows: In this form, the pipe circumferential weld is a standard narrow bevel welded by automatic welding, such as... Figure 2 As shown, select the values ​​from Table 1;

[0090] Table 1

[0091] <![CDATA[g1]]> 0.33139 <![CDATA[g8]]> -2.38553 <![CDATA[g 15 ]]> 1.31075 <![CDATA[g 22 ]]> 1.64615 <![CDATA[g2]]> -1.25649 <![CDATA[g9]]> -0.59949 <![CDATA[g 16 ]]> -1.1154 <![CDATA[g 23 ]]> 1.48E-04 <![CDATA[g3]]> 1.30861 <![CDATA[g 10 ]]> 1.21338 <![CDATA[g 17 ]]> 1.53713 <![CDATA[g 24 ]]> 0.03537 <![CDATA[g4]]> -0.47689 <![CDATA[g 11 ]]> -0.80131 <![CDATA[g 18 ]]> -2.25826 <![CDATA[g 25 ]]> 1.87993 <![CDATA[g5]]> 0.968 <![CDATA[g 12 ]]> 0.69198 <![CDATA[g 19 ]]> 0.54965 <![CDATA[g 26 ]]> 0.9559 <![CDATA[g6]]> 2.60303 <![CDATA[g 13 ]]> -0.88368 <![CDATA[g 20 ]]> 1.54693 <![CDATA[g 27 ]]> 11.994 <![CDATA[g7]]> 0.03395 <![CDATA[g 14 ]]> 0.91225 <![CDATA[g 21 ]]> 132.98617 <![CDATA[g 28 ]]> 5.0122

[0092] (3) Using the strain capacity material influence characterization function X as the x-coordinate and the strain capacity load and geometric influence characterization function Y as the y-coordinate, draw a line in the orthogonal rectangular coordinate system xoy. The strain curve is determined. The region enclosed by the horizontal and vertical coordinates corresponds to a parameter set that meets the engineering strain requirements within a 0.5% safety range. Figure 3 As shown;

[0093] (4) Based on the safety range of parameter set A, the geometric parameters and load parameters of the pipe circumferential weld are determined as follows: pipe wall thickness t = 18.4 mm, heat-affected zone width b = 3.5 mm, misalignment h = 1 mm, crack depth a = 3 mm, crack length 2c = 50 mm, and internal pressure design factor f. p =0.72, dimensionless standard wall thickness t0 = 22mm, then the dimensionless wall thickness parameter t / t0 = 0.8364, the heat-affected zone width parameter b / t = 0.1902, the misalignment parameter h / t = 0.0543, the crack depth parameter a / t = 0.1630, and the dimensionless crack length parameter 2c / t = 2.7174. The safe range of material property parameters is obtained by the following steps:

[0094] 1) Substituting the geometric parameters and load parameters into the strain capacity load and geometric influence characterization function Y, we obtain Y = 0.02791;

[0095] 2) By comparing Y = 0.02791 with the curve The intersection point is obtained as X = 71.7. The set of material performance parameters represented by X < 71.7 is the set of material performance parameters that meets the engineering strain requirement of 0.5%.

[0096] 3) The influence of strain on material properties on the characterization function <71.7, for this circumferential welded pipe to meet the strain requirement of 0.5%, the apparent fracture toughness δ A Yield-to-tensile ratio λ, strength matching coefficient M y and the softening of the heat-affected zone M s The combined effect of the four material properties must meet the following requirements.

[0097] This constrains the relationships that four material properties must satisfy. When three of these material property parameters are determined, the safe range for the fourth can be determined. When two of these parameters are determined, the relationships that the remaining two material properties must satisfy can be determined. By constraining these relationships among several material properties, applications under different varying working conditions in engineering can be realized. For example, when the apparent fracture toughness δ is known... A The thickness is 0.8 mm, the yield strength ratio λ is 0.93, and the strength matching coefficient M is... y The value is 0.95, which confirms that the circumferential welded pipe meets the safety requirement of 0.5% for engineering strain, and the safe range for softening rate in the heat-affected zone is M. s <17.7%.

[0098] The technical solution of this invention first sets engineering requirements based on practical experience and industry standards. Then, through the summarized strain capacity model and bevel type, the strain curves corresponding to geometric and load parameters are calculated. By analyzing the region enclosed by the strain curves and coordinate axes, the safe range of the parameter set that meets the engineering requirements is determined. Furthermore, by combining specific geometric parameters (such as wall thickness, heat-affected zone width, misalignment, etc.) and load parameters, the strain capacity load and geometric influence characterization function values ​​are calculated, and the safe range of material performance parameters is determined by the x-coordinate of the intersection point. This not only improves the accuracy and reliability of welded joint design, but also effectively copes with complex working condition changes, optimizes material selection and process parameters, significantly reduces the risk of structural failure, and improves the overall safety and durability of the project.

[0099] Example 3

[0100] The flowchart of a method for determining the value range of pipeline circumferential weld parameters provided in Embodiment 3 of the present invention is an optional embodiment of the above embodiments. The description takes a combined automatic welded wide bevel type as an example.

[0101] (1) A numerical model of the pipeline related to the actual working conditions is established using numerical simulation methods. Loads and constraints are applied, and the ultimate strain under the corresponding working conditions is calculated as the engineering strain requirement ε. r (%) is 1%;

[0102] (2) The strain capacity prediction model for pipe circumferential welds (TSC) is summarized and organized as follows: The form, from the pipe circumferential weld to the combined automatic welding wide bevel form, such as... Figure 6 As shown, the values ​​are listed in Table 2;

[0103] Table 2

[0104] <![CDATA[g1]]> -0.41366 <![CDATA[g8]]> 0.0000 <![CDATA[g 15 ]]> 0.3072 <![CDATA[g 22 ]]> 1.87374 <![CDATA[g2]]> -0.2226 <![CDATA[g9]]> -0.2444 <![CDATA[g 16 ]]> -0.5941 <![CDATA[g 23 ]]> 0.2170 <![CDATA[g3]]> 1.5985 <![CDATA[g 10 ]]> 1.0106 <![CDATA[g 17 ]]> 0.0000 <![CDATA[g 24 ]]> 31.6763 <![CDATA[g4]]> -0.7000 <![CDATA[g 11 ]]> -2.6147 <![CDATA[g 18 ]]> -0.3625 <![CDATA[g 25 ]]> 1.5576 <![CDATA[g5]]> 0.915 <![CDATA[g 12 ]]> 0.9366 <![CDATA[g 19 ]]> 0.9504 <![CDATA[g 26 ]]> 1.0232 <![CDATA[g6]]> 5.1761 <![CDATA[g 13 ]]> 1.1217 <![CDATA[g 20 ]]> 1.0436 <![CDATA[g 27 ]]> 1.4072 <![CDATA[g7]]> 1.0554 <![CDATA[g 14 ]]> 0.8412 <![CDATA[g 21 ]]> 195.3877 <![CDATA[g 28 ]]> 2.2517

[0105] (3) Figure 7As shown, with the strain capacity material influence characterization function X as the x-coordinate and the strain capacity load and geometric influence characterization function Y as the y-coordinate, a line is plotted in the orthogonal rectangular coordinate system xoy. Find the curve The region enclosed by the horizontal and vertical coordinates corresponds to a parameter set that meets the engineering strain requirements within a 1% safety range.

[0106] (4) Figure 7 As shown, the apparent fracture toughness δ is determined by the material performance parameters of the pipe circumferential weld through the parameter set safety range A. A The thickness is 0.527 mm, the yield strength ratio λ is 0.815, and the strength matching coefficient M is... y The softening rate M in the heat-affected zone is 1.025. s =16.4%, the safe range of geometric and load parameters is obtained by following these steps:

[0107] 1) Substituting the material property parameters into the strain capacity material influence characterization function X, we get X = 0.508;

[0108] 2) By X = 0.508 and the curve The intersection point is obtained by plotting the intersection point ordinate Y0 = 1.96774. Y < Y0 represents the set of geometric parameters and load parameters that meet 1% of the engineering strain requirement.

[0109] 3) Through To meet the 1% strain requirement, this circumferential welded pipe constrains the relationship between five geometric parameters and the internal pressure design coefficient load parameters. Once the five geometric parameters are determined, the internal pressure design coefficient can be deduced. Conversely, given the internal pressure design coefficient and some geometric parameters, the remaining geometric parameters or their relationships can be deduced. For example, given a pipe wall thickness t = 26.4 mm, heat-affected zone width b = 3.5 mm, misalignment h = 1 mm, crack depth a = 3 mm, crack length 2c = 50 mm, and standard wall thickness t0 = 22 mm, then the dimensionless wall thickness parameter t / t0 = 1.1909, the dimensionless heat-affected zone width parameter b / t = 18.4017, the misalignment parameter h / t = 0.03788, the crack depth parameter a / t = 0.1132, and the dimensionless crack length parameter 2c / t = 1.8940, the internal pressure design coefficient f can be deduced using the above formula. p If the value is less than 0.5, it indicates that to ensure a strain requirement of 1%, the internal pressure design factor f is [value missing]. p It must be less than 0.5; when the internal pressure design factor f is known. p=0.6. In addition, given the pipe wall thickness t = 26.4 mm, heat-affected zone width b = 3.5 mm, misalignment h = 0, defect length 2c = 40 mm, and standard wall thickness t0 = 22, then the wall thickness parameter t / t0 = 1.1909, the heat-affected zone width parameter b / t = 18.4017, the misalignment parameter h / t = 0, and the crack length parameter 2c / t = 1.8940, we can use the above formula to deduce that the defect depth a / t < 0.1583. Furthermore, a < 4.177 mm, indicating that in order to ensure the strain requirement of 1%, the allowable defect depth a of this circumferential weld must be less than 4.177 mm.

[0110] The technical solution of this invention establishes a numerical model of the pipe circumferential weld related to actual working conditions through numerical simulation, and accurately calculates the ultimate strain value that meets the 1% engineering strain requirement using a strain capacity prediction model (TSC). By combining the parameter set under the automatic weld wide groove form, strain curves are plotted and the safe parameter range that meets engineering requirements is determined. This not only accurately evaluates material performance parameters and geometric load parameters, but also deduces the safe range of other unknown parameters based on known parameters, ensuring that the design meets specific strain requirements, improving the accuracy and reliability of welded joint design, optimizing material selection and process parameters, and effectively reducing the risk of structural failure.

[0111] Example 4

[0112] Figure 8 This is a structural schematic diagram of a device for determining the range of parameters for a pipe circumferential weld, provided in Embodiment 3 of the present invention. Figure 8 As shown, the device includes: an acquisition module 810, a parameter value determination module 820, a strain upper limit value determination module 830, and a value range determination module 840. Among them,

[0113] The acquisition module 810 is used to acquire multiple target influence parameters of the pipe circumferential weld and their corresponding parameter values. The target influence parameters include a first influence parameter and a second influence parameter. The first influence parameter is a factor affecting the performance of the pipe circumferential weld material, and the second influence parameter is a parameter related to the strain capacity load and geometric influence of the pipe circumferential weld. The parameter values ​​include known parameter values ​​and unknown parameter values. The parameter value determination module 820 is used to acquire the bevel type of the pipe circumferential weld, determine a preset adjustment coefficient related to each target influence parameter based on the bevel type, and determine a first parameter based on the parameter value of the first influence parameter and its corresponding preset adjustment coefficient. The second parameter value is determined based on the parameter value of the second influencing parameter and its corresponding preset adjustment coefficient; the strain upper limit value determination module 830 is used to determine the target working condition corresponding to the pipeline circumferential weld, and determine the strain upper limit value of the strain parameter of the pipeline circumferential weld based on the target working condition; the value range determination module 840 is used to determine the target value range of the unknown parameter value based on the first parameter value, the second parameter value, the strain upper limit value and the preset strain prediction model, wherein the strain prediction model is used to characterize the functional relationship between the first influencing parameter, the second influencing parameter and the strain capacity of the circumferential weld, and the strain upper limit value is not greater than the strain capacity of the circumferential weld.

[0114] The technical solution of this invention firstly acquires multiple target influence parameters of the pipe circumferential weld and their corresponding parameter values ​​through an acquisition module. Since the target influence parameters include a first influence parameter and a second influence parameter, the first influence parameter is a factor affecting the performance of the pipe circumferential weld material, and the second influence parameter is a parameter related to the strain capacity load and geometric influence of the pipe circumferential weld. The parameter values ​​include known and unknown parameter values. Acquiring and integrating the values ​​of the first and second influence parameters provides data support for accurately evaluating the material properties and strain capacity of the pipe circumferential weld. Next, the bevel type of the pipe circumferential weld is acquired through a parameter value determination module. Based on the bevel type, a preset adjustment coefficient related to each target influence parameter is determined. A first parameter value is determined based on the parameter value of the first influence parameter and its corresponding preset adjustment coefficient, and a second parameter value is determined based on the parameter value of the second influence parameter and its corresponding preset adjustment coefficient. By determining the bevel type and the corresponding preset adjustment coefficient, the first and second parameter values ​​can be accurately calculated, effectively quantifying the material properties and strain capacity of the pipe circumferential weld. Then, through strain... The upper limit determination module determines the target working condition corresponding to the pipeline circumferential weld, and determines the upper limit strain value of the strain parameter of the pipeline circumferential weld based on the target working condition. This allows for the determination of the target working condition and the setting of the upper limit strain value, accurately assessing the maximum deformation capacity of the pipeline circumferential weld under actual working conditions, ensuring structural safety and durability, and effectively preventing overload failure. Finally, the value range determination module determines the target value range of the unknown parameter value based on the first parameter value, the second parameter value, the upper limit strain value, and a preset strain prediction model. The strain prediction model is used to characterize the functional relationship between the first influencing parameter, the second influencing parameter, and the strain capacity of the circumferential weld. The upper limit strain value is not greater than the strain capacity of the circumferential weld. By integrating the first parameter value, the second parameter value, and the upper limit strain value using the strain prediction model, the target value range of the unknown parameter value is determined, optimizing the selection of design parameters. This solves the problem in related technologies where it is difficult to consider multiple influencing factors to accurately determine the value range of unknown pipeline circumferential weld parameters, ensuring that the design of the welded joint not only meets the requirements of structural safety and durability but also effectively reduces the risks caused by uncertainties in materials and processes.

[0115] Based on the above scheme, optionally, the value range determination module is specifically used to: determine the restricted value range of the first influence parameter or the second influence parameter that includes the unknown parameter value according to the first parameter value, the second parameter value, the strain upper limit value and the preset strain prediction model; and determine the target value range of the unknown parameter value according to the restricted value range of the first influence parameter or the second influence parameter that includes the unknown parameter value.

[0116] Based on the above scheme, optionally, the strain prediction model is expressed based on the following formula:

[0117]

[0118] Where, ε r X represents the upper limit of strain; X represents the first parameter value; Y represents the second parameter value.

[0119] Based on the above scheme, optionally, the first influencing parameter includes at least the fracture toughness parameter, yield strength ratio parameter, strength matching parameter, and heat-affected zone softening rate parameter, and the first parameter value is determined based on the following formula according to the first influencing parameter and its corresponding preset adjustment coefficient:

[0120]

[0121] Where X represents the first parameter value; α is the first preset parameter; δ A λ represents the fracture toughness parameter; M represents the yield strength ratio parameter; y Indicates the strength matching parameter; M s Indicates the softening rate parameter of the heat-affected zone; g6-g 16 These represent the preset adjustment coefficients of the corresponding first influencing parameter.

[0122] Based on the above scheme, optionally, the second influencing parameter includes at least the dimensionless misalignment parameter, crack depth parameter, wall thickness parameter, heat-affected zone width parameter, standard wall thickness, pipe wall thickness, and internal pressure design coefficient. The value of the second parameter is determined based on the following formula according to the second influencing parameter and its corresponding preset adjustment coefficient:

[0123]

[0124] Where Y is the value of the second parameter; The dimensionless misalignment parameter represents the misalignment factor. Indicates the crack depth parameter; θ represents the crack length parameter, and θ represents the second preset parameter; Indicates the wall thickness parameter; The parameter represents the width of the heat-affected zone; t0 represents the preset wall thickness; t represents the pipe wall thickness; f p Indicates the internal pressure design coefficients; g1-g5 and g 17 -g 28 These represent the preset adjustment coefficients of the second influencing parameter corresponding to them.

[0125] Based on the above solution, optionally, the device for determining the range of values ​​for the pipe circumferential weld parameters further includes a bevel type determination module. The bevel type determination module is used to determine the width of the heat-affected zone of the pipe circumferential weld before obtaining the bevel type, and to determine the bevel type of the pipe circumferential weld based on the width of the heat-affected zone and a preset width range corresponding to the bevel type.

[0126] Based on the above scheme, optionally, the device for determining the value range of the pipeline circumferential weld parameters further includes: a second value range determination module. The second value range determination module is used to, after determining the upper limit value of the strain parameters of the pipeline circumferential weld under preset operating conditions, determine a strain curve based on the upper limit value of the strain and a rectangular coordinate system, and determine a second value range of the target influence parameter that satisfies the upper limit value of the strain based on the region enclosed by the strain curve and the coordinate axes of the rectangular coordinate system.

[0127] The device for determining the range of values ​​of pipe circumferential weld parameters provided in this embodiment of the invention can execute the method for determining the range of values ​​of pipe circumferential weld parameters provided in any embodiment of the invention, and has the corresponding functional modules and beneficial effects of the method.

[0128] Example 5

[0129] Figure 9 A schematic diagram of an electronic device 10 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0130] like Figure 9As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12 or a random access memory (RAM) 13, communicatively connected to the at least one processor 11. The memory stores computer programs executable by the at least one processor. The processor 11 can perform various appropriate actions and processes based on the computer program stored in the ROM 12 or loaded from storage unit 18 into the RAM 13. The RAM 13 may also store various programs and data required for the operation of the electronic device 10. The processor 11, ROM 12, and RAM 13 are interconnected via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0131] Multiple components in electronic device 10 are connected to I / O interface 15, including: input unit 16, such as keyboard, mouse, etc.; output unit 17, such as various types of displays, speakers, etc.; storage unit 18, such as disk, optical disk, etc.; and communication unit 19, such as network card, modem, wireless transceiver, etc. Communication unit 19 allows electronic device 10 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0132] Processor 11 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 11 performs the various methods and processes described above, such as a method for determining the range of values ​​for pipe circumferential weld parameters.

[0133] In particular, according to embodiments of the present invention, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, embodiments of the present invention include a computer program product comprising a computer program carried on a non-transitory computer-readable medium, the computer program containing program code for performing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network via communication unit 19, or installed from storage unit 18, or installed from ROM 12. When the computer program is executed by processor 11, it performs the functions defined in the methods of the embodiments of the present invention.

[0134] In some embodiments, a method for determining the value range of pipe circumferential weld parameters may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the method for determining the value range of pipe circumferential weld parameters described above may be performed. Alternatively, in other embodiments, processor 11 may be configured to perform a method for determining the value range of pipe circumferential weld parameters by any other suitable means (e.g., by means of firmware).

[0135] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), payload-programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0136] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0137] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0138] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0139] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0140] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0141] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0142] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for determining the value range of parameters for a pipe circumferential weld, characterized in that, include: Multiple target influence parameters and their corresponding parameter values ​​of the pipeline circumferential weld are obtained. The target influence parameters include a first influence parameter and a second influence parameter. The first influence parameter is a factor that affects the performance of the pipeline circumferential weld material. The second influence parameter is a parameter of the strain capacity load and geometric influence of the pipeline circumferential weld. The parameter values ​​include known parameter values ​​and unknown parameter values. Obtain the bevel type of the pipe circumferential weld, determine the preset adjustment coefficient related to each of the target influence parameters according to the bevel type, determine the first parameter value according to the parameter value of the first influence parameter and its corresponding preset adjustment coefficient, and determine the second parameter value according to the parameter value of the second influence parameter and its corresponding preset adjustment coefficient. Determine the target working condition corresponding to the circumferential weld of the pipeline, and determine the upper limit of the strain parameter of the circumferential weld of the pipeline based on the target working condition; The target range of the unknown parameter value is determined based on the first parameter value, the second parameter value, the upper limit of strain value, and a preset strain prediction model. The strain prediction model is used to characterize the functional relationship between the first influencing parameter, the second influencing parameter, and the strain capacity of the circumferential weld. The upper limit of strain value is not greater than the strain capacity of the circumferential weld.

2. The method according to claim 1, characterized in that, The step of determining the target range of the unknown parameter value based on the first parameter value, the second parameter value, the upper limit of strain, and a preset strain prediction model includes: Based on the first parameter value, the second parameter value, the strain upper limit value, and the preset strain prediction model, determine the limited value range of the first influence parameter or the second influence parameter that includes the unknown parameter value; The target range of the unknown parameter value is determined based on the restricted range of the first or second influence parameter that includes the unknown parameter value.

3. The method according to claim 1, characterized in that, The strain prediction model is based on the following formula: Where TSC represents the strain capacity of the circumferential weld; X represents the first parameter value; and Y represents the second parameter value. The upper limit of strain ε r The strain capacity (TSC) of the circumferential weld shall not exceed the strain capacity (TSC) of the circumferential weld, and shall satisfy the following formula: Where TSC represents the strain capacity of the circumferential weld; ε r This represents the upper limit of strain.

4. The method according to claim 1, characterized in that, The first influencing parameter includes at least the fracture toughness parameter, yield strength ratio parameter, strength matching parameter, and heat-affected zone softening rate parameter. The value of the first parameter is determined based on the following formula according to the first influencing parameter and its corresponding preset adjustment coefficient: Where X represents the first parameter value; α is the first preset parameter; δ A λ represents the fracture toughness parameter; M represents the yield strength ratio parameter; y Indicates the strength matching parameter; M s Indicates the softening rate parameter of the heat-affected zone; g6-g 16 These represent the preset adjustment coefficients of the corresponding first influencing parameter.

5. The method according to claim 1, characterized in that, The second influencing parameter includes at least the dimensionless misalignment parameter, crack depth parameter, wall thickness parameter, heat-affected zone width parameter, standard wall thickness, pipe wall thickness, and internal pressure design coefficient. The value of the second parameter is determined based on the following formula, according to the second influencing parameter and its corresponding preset adjustment coefficient: Where Y is the value of the second parameter; The dimensionless misalignment parameter represents the misalignment factor. Indicates the crack depth parameter; θ represents the crack length parameter, and θ represents the second preset parameter; Indicates the wall thickness parameter; The parameter represents the width of the heat-affected zone; t0 represents the preset wall thickness; t represents the pipe wall thickness; f p Indicates the internal pressure design coefficients; g1-g5 and g 17 -g 28 These represent the preset adjustment coefficients of the second influencing parameter corresponding to them.

6. The method according to claim 1, characterized in that, Before obtaining the bevel type of the pipe circumferential weld, the method further includes: The width of the heat-affected zone of the pipe circumferential weld is determined, and the bevel type of the pipe circumferential weld is determined based on the width of the zone and the width range corresponding to the preset bevel type.

7. The method according to claim 1, characterized in that, After determining the upper limit of the strain parameters of the pipe circumferential weld based on the target working condition, the method further includes: The strain curve is determined based on the upper limit of strain and the rectangular coordinate system, and a second range of values ​​for the target influence parameter that satisfies the upper limit of strain is determined based on the region enclosed by the strain curve and the coordinate axes of the rectangular coordinate system.

8. A device for determining the range of parameters for a pipe circumferential weld, characterized in that, include: The acquisition module is used to acquire multiple target influence parameters of the pipeline circumferential weld and their corresponding parameter values. The target influence parameters include a first influence parameter and a second influence parameter. The first influence parameter is a factor that affects the performance of the pipeline circumferential weld material. The second influence parameter is a parameter of the strain capacity load and geometric influence of the pipeline circumferential weld. The parameter values ​​include known parameter values ​​and unknown parameter values. The parameter value determination module is used to obtain the bevel type of the pipe circumferential weld, determine the preset adjustment coefficient related to each of the target influence parameters according to the bevel type, determine the first parameter value according to the parameter value of the first influence parameter and its corresponding preset adjustment coefficient, and determine the second parameter value according to the parameter value of the second influence parameter and its corresponding preset adjustment coefficient. The strain upper limit determination module is used to determine the target working condition corresponding to the pipeline circumferential weld, and determine the strain upper limit value of the strain parameter of the pipeline circumferential weld based on the target working condition. The value range determination module is used to determine the target value range of the unknown parameter value based on the first parameter value, the second parameter value, the strain upper limit value and the preset strain prediction model, wherein the strain prediction model is used to characterize the functional relationship between the first influencing parameter, the second influencing parameter and the strain capacity of the circumferential weld, and the strain upper limit value is not greater than the strain capacity of the circumferential weld.

9. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the method for determining the range of values ​​for pipe circumferential weld parameters as described in any one of claims 1-7.

10. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that are used to cause a processor to execute the method for determining the range of values ​​for pipe circumferential weld parameters as described in any one of claims 1-7.

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