A method and system for multi-dimensional spatial interference detection and layout optimization of industrial pipelines

Abstract

The application provides a kind of multi-dimensional space interference detection and layout optimization method and system of industrial pipeline, comprising the following steps: obtaining the three-dimensional space model and operating condition parameters of target pipeline;Based on the operating condition parameters, the three-dimensional space model is expanded in space to generate a multi-dimensional space envelope model containing dynamic operation envelope and operation and maintenance operation envelope;The multi-dimensional space envelope model and the environment model are interfered to determine the interference area and type;With interference area and type as constraint, layout optimization scheme is generated based on pipeline layout adjustment rule base.This application converts dynamic operating conditions and operation and maintenance requirements into space envelope constraints and drives automatic optimization, solves the problem that static collision detection cannot reflect the actual operating state, effectively reduces design changes and field rework.

Description

Technical Field

[0001] This invention relates to the field of industrial pipeline design technology, and in particular to a method and system for multidimensional spatial interference detection and layout optimization of industrial pipelines. Background Technology

[0002] In the design and layout of industrial pipelines, 3D modeling software is usually used to construct a static geometric model of the pipeline, and collision detection is performed based on the static model to eliminate spatial interference problems.

[0003] However, existing technical solutions mainly rely on the static outer diameter of the pipeline under design conditions for geometric hard collision verification, without fully considering the dynamic physical characteristics of the pipeline during actual operation and the subsequent maintenance requirements. For example, under high-temperature conditions, the pipeline will undergo significant axial and radial thermal expansion deformation due to heat; when related equipment such as fans and pumps are running, the pipeline will experience periodic displacement due to continuous vibration; in addition, sufficient operating space needs to be reserved for valves, expansion joints, and other operating components around the pipeline during later maintenance and disassembly. Because existing static collision detection cannot cover the above-mentioned dynamic operating conditions and maintenance dimensions, the design model is seriously out of sync with the actual on-site operating conditions. After commissioning, problems such as pipeline squeezing the steel frame, vibration hitting surrounding components, and insufficient maintenance space for disassembly and assembly are likely to occur, leading to a large number of design changes and on-site rework, which seriously affects the project progress and operational safety. Summary of the Invention

[0004] In view of this, it is necessary to provide a multi-dimensional spatial interference detection and layout optimization method and system for industrial pipelines, so as to realize the transformation of dynamic operating conditions and maintenance requirements into spatial envelope constraints and drive the automatic optimization of pipeline layout.

[0005] This invention provides a method for multidimensional spatial interference detection and layout optimization of industrial pipelines, comprising the following steps: Obtain a three-dimensional spatial model of the target pipeline and its operating parameters; Based on the operating condition parameters, the three-dimensional spatial model is spatially expanded to generate a multi-dimensional spatial envelope model that includes a dynamic operating envelope and an operation and maintenance envelope. The multidimensional spatial envelope model is subjected to interference detection with a preset environmental model to determine the interference region and the corresponding interference type. Using the interference region and the interference type as constraints, and based on a preset pipeline layout adjustment rule library, a layout optimization scheme for the target pipeline is generated.

[0006] In other embodiments, the step of spatially expanding the three-dimensional spatial model based on the operating condition parameters to generate a multi-dimensional spatial envelope model containing a dynamic operating envelope and an operation and maintenance envelope includes: Based on the thermodynamic parameters in the operating condition parameters, the three-dimensional spatial model is thermally deformed and expanded to generate a thermal deformation envelope surface. Based on the dynamic parameters in the operating condition parameters, the three-dimensional spatial model is subjected to vibration offset expansion to generate a vibration safety envelope surface; Based on the operation and maintenance parameters in the operating condition parameters, the operation space of the three-dimensional spatial model is expanded to generate a maintenance space envelope. The thermal deformation envelope, the vibration safety envelope, the maintenance space envelope, and the three-dimensional space model are fused and superimposed to obtain the multi-dimensional space envelope model.

[0007] In other embodiments, the step of performing interference detection between the multidimensional spatial envelope model and a preset environmental model to determine the interference region and the corresponding interference type includes: Collision calculations are performed between the three-dimensional spatial model, the dynamic operation envelope, and the operation and maintenance envelope and the environmental model to determine the geometric hard collision region, the dynamic operation interference region, and the operation and maintenance space interference region, respectively. The interference region is determined based on the geometric hard collision region, the dynamic operation interference region, and the operation and maintenance space interference region.

[0008] In other embodiments, the step of generating a layout optimization scheme for the target pipeline based on a preset pipeline layout adjustment rule base, using the interference region and the interference type as constraints, includes: Match the target adjustment strategy corresponding to the interference type from the pipeline layout adjustment rule base; Based on the target adjustment strategy, the spatial positions of pipeline components associated with the interference region are adjusted to generate the layout optimization scheme.

[0009] In other embodiments, the step of matching the target adjustment strategy corresponding to the interference type from the pipeline layout adjustment rule base includes: When the interference type is thermal expansion interference, the expansion joint displacement strategy or pipeline route fine-tuning strategy is preferentially matched as the target adjustment strategy. When the interference type is vibration interference, the matching support and hanger position change strategy is used as the target adjustment strategy; When the interference type is maintenance space interference, the matching operation component point adjustment strategy is used as the target adjustment strategy.

[0010] In other embodiments, the step of adjusting the spatial positions of pipeline components associated with the interference region based on the target adjustment strategy to generate the layout optimization scheme includes: The adjustment direction and adjustment distance of the pipeline component are determined based on the target adjustment strategy; The pipeline component is moved according to the adjustment direction and the adjustment distance, and the multidimensional spatial envelope model is recalculated after the movement. If the updated multidimensional spatial envelope model does not interfere with the environment model, the current adjustment result is output as the layout optimization scheme.

[0011] In other embodiments, the step of moving the pipeline component according to the adjustment direction and the adjustment distance, and recalculating the multidimensional spatial envelope model after the movement, and if the updated multidimensional spatial envelope model does not interfere with the environment model, then outputting the current adjustment result as the layout optimization scheme, includes: Update the current adjustment results to the new three-dimensional spatial model and regenerate the corresponding multi-dimensional spatial envelope model; The regenerated multidimensional spatial envelope model is subjected to secondary interference detection with the environmental model; If interference regions still exist after secondary interference detection, the pipeline components with interference regions are iteratively adjusted based on the pipeline layout adjustment rule base until the preset non-interference convergence condition is met. When the interference-free convergence condition is met, the final iterative adjustment result is determined as the layout optimization scheme.

[0012] In other embodiments, obtaining the three-dimensional spatial model of the target pipeline and the operating parameters of the target pipeline includes: Obtain the pipe material properties of the target pipeline from the preset pipeline parameter library; Bind the pipe material properties and the operating condition parameters to the corresponding single-segment pipeline model; An initial entity model is generated based on the bound single-segment pipeline model, and the initial entity model is used as the three-dimensional space model.

[0013] This invention also provides a multi-dimensional spatial interference detection and layout optimization system for industrial pipelines, comprising: The model acquisition module is used to acquire the three-dimensional spatial model of the target pipeline and the operating parameters of the target pipeline. The envelope generation module is used to spatially expand the three-dimensional spatial model based on the operating condition parameters to generate a multi-dimensional spatial envelope model that includes a dynamic operating envelope and an operation and maintenance envelope. The interference detection module is used to perform interference detection between the multidimensional spatial envelope model and the preset environmental model to determine the interference region and the corresponding interference type. The layout optimization module is used to generate a layout optimization scheme for the target pipeline based on a preset pipeline layout adjustment rule library, using the interference region and the interference type as constraints.

[0014] In other embodiments, the interference detection module includes: A geometric collision detection unit is used to perform collision calculations between the three-dimensional spatial model and the environment model to determine the geometric hard collision area. A dynamic interference detection unit is used to perform collision calculations between the dynamic running envelope and the environment model to determine the dynamic running interference region. The operation and maintenance interference detection unit is used to perform collision calculation between the operation and maintenance operation envelope and the environment model to determine the operation and maintenance space interference region. An interference classification unit is used to determine the interference region and the corresponding interference type based on the geometric hard collision region, the dynamic operation interference region, and the operation and maintenance space interference region.

[0015] The beneficial effects of this invention are as follows: This invention provides a multi-dimensional spatial interference detection and layout optimization method and system for industrial pipelines, including the following steps: acquiring a three-dimensional spatial model and operating condition parameters of the target pipeline; spatially expanding the three-dimensional spatial model based on the operating condition parameters to generate a multi-dimensional spatial envelope model containing a dynamic operating envelope and a maintenance operation envelope; performing interference detection between the multi-dimensional spatial envelope model and the environmental model to determine the interference region and type; and generating a layout optimization scheme based on a pipeline layout adjustment rule base, using the interference region and type as constraints. By constructing a multi-dimensional spatial envelope model that integrates static geometry, dynamic operating conditions, and maintenance operation requirements, it overcomes the bottleneck of traditional BIM collision detection, which is limited to static geometric dimensions. Its core principle lies in transforming physical field parameters such as temperature and vibration, as well as maintenance space requirements, into calculable geometric envelope boundaries in three-dimensional space, enabling isomorphic mapping between the verification dimensions in the design phase and the actual operating conditions. This allows for accurate identification of hidden risks such as thermal expansion and compression, vibration and impact, and insufficient maintenance space, which are undetectable by traditional methods, during the pre-design phase, significantly reducing the failure rate and on-site rework after commissioning. Attached Figure Description

[0016] 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.

[0017] Figure 1 This is a flowchart illustrating the multidimensional spatial interference detection and layout optimization method for industrial pipelines in this invention. Figure 2 This is a schematic diagram of the multi-dimensional spatial interference detection and layout optimization system for industrial pipelines in this invention. Detailed Implementation

[0018] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0019] like Figure 1 As shown, this embodiment provides a multi-dimensional spatial interference detection and layout optimization method for industrial pipelines, aiming to solve the problem that traditional static collision detection cannot cover dynamic operating conditions and maintenance needs. The method mainly includes the following steps: S100, acquire the three-dimensional spatial model of the target pipeline and the operating parameters of the target pipeline; S200 expands the three-dimensional spatial model based on operating condition parameters to generate a multi-dimensional spatial envelope model that includes dynamic operating envelope and maintenance operation envelope. S300, perform interference detection between the multidimensional spatial envelope model and the preset environmental model to determine the interference region and the corresponding interference type; S400, using the interference region and the interference type as constraints, and based on a preset pipeline layout adjustment rule library, generate a layout optimization scheme for the target pipeline.

[0020] This invention constructs a multi-dimensional spatial envelope model that integrates static geometry, dynamic operating conditions, and maintenance requirements. It transforms physical field parameters such as temperature and vibration, along with maintenance space requirements, into calculable geometric envelope boundaries in three-dimensional space, enabling isomorphic mapping between the verification dimensions during the design phase and actual operating conditions. This allows for the accurate identification of hidden risks such as thermal expansion and compression, vibration and impact, and insufficient maintenance space—risks that traditional methods cannot detect—during the pre-design stage, significantly reducing post-commissioning failure rates and on-site rework.

[0021] The purpose of setting up steps to obtain the three-dimensional spatial model of the target pipeline and its operating parameters is to ensure the accuracy and automation of subsequent analysis.

[0022] In this embodiment, spatial expansion is not a simple geometric enlargement, but rather a transformation of abstract operating parameters into concrete spatial occupancy boundaries based on physical laws and engineering specifications. For example, the dynamic operating envelope can cover the range of thermal deformation of the pipeline at high temperatures, the range of vibration displacement under equipment excitation, etc.; the maintenance operation envelope covers the personnel and tool activity space required for maintenance operations such as valve operation, flange disassembly and assembly, and instrument calibration. It should be understood that although this embodiment lists thermal deformation, vibration, and maintenance space as examples, in other embodiments, depending on the specific industrial environment of the pipeline, spatial expansion may also include wind load offset envelope, snow and ice load envelope, or electromagnetic safety distance envelope, etc. As long as it is a geometric boundary generated based on operating parameters to characterize the potential space occupancy of the pipeline, it falls within the protection scope of this application. Through this step, the system makes the invisible physical risks and functional requirements explicit into computable geometric entities, realizing an upgrade from single static geometric verification to multi-dimensional spatial adaptation under all operating conditions.

[0023] In step S300, the environmental model refers to the model of all fixed or moving obstacles surrounding the target pipeline, including the steel structure of the plant, concrete foundation, other process pipelines, cable trays, and large equipment. The interference detection process involves performing Boolean operations or distance field calculations on the multidimensional spatial envelope model generated in step S200 and the environmental model to identify areas of spatial overlap or insufficient spacing. More importantly, this step not only determines whether interference exists but also further identifies the specific type of interference. For example, it distinguishes whether the interference is dynamic operational interference caused by thermal expansion, maintenance interference caused by insufficient maintenance space, or geometric hard collision in a static installation state. This classification and identification mechanism provides a crucial prerequisite for subsequent targeted optimization, overcoming the technical deficiency of existing technologies that can only report the collision location but cannot disclose the cause of the collision.

[0024] In step S400, the pipeline layout adjustment rule base is a pre-built collection of expert knowledge that stores the mapping relationship between different interference types and corresponding adjustment strategies. For example, when the constraint condition indicates thermal expansion interference, the rule base may recommend strategies such as adding expansion joints, changing the route, or adjusting the position of fixed supports; when the constraint condition indicates maintenance space interference, the rule base may recommend strategies such as adjusting the valve installation angle, relocating the operating platform, or replacing with compact pipe fittings. The system aims to eliminate interference areas and automatically calls matching adjustment strategies to reconfigure the spatial position or configuration of pipeline components, thereby generating one or more feasible layout optimization schemes. This process transforms manual trial and error based on personal experience into rule-driven automatic optimization, which not only significantly improves design efficiency but also ensures the compliance and safety of the optimized scheme across all operating conditions, fundamentally reducing the risk of on-site rework and design changes.

[0025] Step S100 further includes: S101. Obtain the pipe material properties of the target pipeline from the preset pipeline parameter library; S102. Bind the pipe material properties and operating condition parameters to the corresponding single-segment pipeline model; S103. Generate an initial entity model based on the bound single-segment pipeline model, and use the initial entity model as a three-dimensional space model.

[0026] The pipeline parameter library is a structured database storing physical property data for various pipe materials, such as static attributes like material grade, density, elastic modulus, coefficient of linear expansion, and thermal conductivity. Operating condition parameters refer to the external loads and environmental conditions the pipeline experiences during actual service, including but not limited to dynamic or functional parameters such as operating temperature, medium pressure, vibration amplitude and frequency of associated equipment, and minimum clearance dimensions required for maintenance. By precisely binding these two types of heterogeneous data to the geometric topology of a single pipeline segment model, the system establishes a mapping relationship between geometric entities and physical properties. This imbues the originally purely geometric model with the ability to perceive changes in operating conditions, providing a complete and consistent data foundation for subsequent multidimensional envelope generation. This avoids errors caused by repeated manual data entry and model distortion due to data fragmentation.

[0027] Step S200 specifically includes the following steps: S201. Based on the thermodynamic parameters in the operating condition parameters, perform thermal deformation expansion on the three-dimensional spatial model to generate a thermal deformation envelope surface. S202. Based on the dynamic parameters in the operating condition parameters, the three-dimensional spatial model is expanded by vibration offset to generate a vibration safety envelope. S203. Based on the operation and maintenance parameters in the operating condition parameters, expand the operation space of the three-dimensional spatial model to generate the maintenance space envelope. S204. The thermal deformation envelope, vibration safety envelope, maintenance space envelope, and three-dimensional space model are fused and superimposed to obtain a multi-dimensional space envelope model.

[0028] The core of generating the thermal deformation envelope lies in mapping temperature loads to geometric deformation. In practice, the system first obtains the pipe segment material, operating temperature, and coefficient of linear expansion of the target pipeline. The pipe segment material determines the material's thermophysical properties, the operating temperature refers to the medium temperature or wall temperature of the pipeline under steady-state operation, and the coefficient of linear expansion is a physical quantity characterizing the rate of dimensional change of the material with temperature. Subsequently, based on the operating temperature and the coefficient of linear expansion, the thermal expansion of the target pipeline in the axial and radial directions is calculated.

[0029] Finally, the outer boundary of the 3D spatial model is expanded based on the thermal expansion, generating a thermal deformation envelope surface. This expansion operation essentially applies a displacement vector in the normal direction of the original geometric surface, ensuring that the generated envelope surface completely encloses the pipeline's limit profile at its highest operating temperature. In this way, the system makes the invisible thermal stress risk explicit as a visible geometric boundary, effectively avoiding pipeline crushing of the steel frame or tearing of equipment interfaces caused by ignoring thermal expansion.

[0030] The purpose of generating a vibration safety envelope is to cover the spatial sweep range of the pipeline under dynamic excitation. In practice, the system acquires the vibration amplitude of associated equipment and the stiffness of the target pipeline segments. The vibration amplitude of associated equipment, such as fans and pumps, reflects the intensity of the external excitation, while the segment stiffness characterizes the pipeline structure's ability to resist elastic deformation; both together determine the actual vibration response of the pipeline. Based on the vibration amplitude and segment stiffness, the vibration offset of the target pipeline is calculated. In the specific calculation, the pipeline can be simplified as a beam model or a spring-mass system, and the maximum dynamic displacement of each node can be estimated based on the transfer function or empirical formula. For example, when a segment is detected to be close to the vibration source and has low stiffness, the calculated vibration offset may reach tens of millimeters; while for segments far from the vibration source or with rigid supports, the offset is significantly reduced. Based on the vibration offset, the outer boundary of the three-dimensional spatial model is offset and extended to generate the vibration safety envelope. This offset extension typically refers to the columnar or ellipsoidal envelope region formed by extending outwards in various directions perpendicular to the pipeline axis, with the calculated maximum amplitude as the radius. This approach not only considers the static position but also reserves sufficient dynamic clearance space, thereby preventing the pipeline from repeatedly colliding and wearing with surrounding components due to fatigue vibration during long-term operation.

[0031] The generation of the maintenance space envelope focuses on ensuring the operability of subsequent operation and maintenance. Specifically, based on the operation and maintenance parameters in the operating condition parameters, the system identifies operating components (such as valves, flanges, instruments, etc.) that require periodic disassembly, cleaning, or calibration, and generates an operating space envelope of specified dimensions around these components according to preset ergonomic standards or enterprise maintenance procedures. For example, for manual valves, it may be necessary to reserve at least 600mm of straight operating space in front of the handwheel; for large flanges, it may be necessary to reserve a combination of the wrench rotation radius and the standing width of personnel. It should be understood that the maintenance space envelope is not a uniform expansion attached to the pipeline surface, but a functional geometric shape discretely distributed according to the operation points. By transforming operation and maintenance needs into mandatory space-occupying entities, the system can force the unobstructed access of maintenance channels during the design phase, completely solving the persistent engineering problem of "installable but unmanageable" in traditional designs.

[0032] After generating the three types of independent envelopes, the key step is to fuse and overlay the thermal deformation envelope surface, vibration safety envelope surface, and maintenance space envelope with the three-dimensional spatial model to obtain a unified multi-dimensional spatial envelope model. This fusion and overlay is not a simple layer display overlay, but rather refers to performing Boolean union operations or mesh fusion processing on geometric entities at the data structure level. Specifically, the system uses computational geometry algorithms to merge multiple closed surfaces or entities representing different working condition boundaries into a continuous, non-self-intersecting single geometric entity. For example, when the thermal deformation envelope surface and the vibration safety envelope surface overlap spatially, the fused model automatically takes their outermost boundary as the new envelope surface; when the maintenance space envelope is separated from the pipeline body, the fusion result is a composite entity containing multiple connected components. This method of generating a unified computable geometric entity allows the interference detection in the subsequent step S300 to perform collision calculations only for this one object, without having to traverse three different envelope types separately. This not only significantly reduces computational complexity, but more importantly, it ensures that the spatial safety determination under multi-condition coupling is based on the same set of geometric benchmarks, avoiding the risk of missed or incorrect judgments caused by inconsistent multi-detection logic.

[0033] Step S300 includes the following steps: S301. Perform collision calculations between the three-dimensional spatial model, the dynamic operation envelope, and the operation and maintenance operation envelope and the environmental model respectively, and determine the geometric hard collision region, the dynamic operation interference region, and the operation and maintenance space interference region accordingly. S302. Based on the geometric hard collision region, the dynamic operation interference region, and the operation and maintenance space interference region, determine the interference region and the corresponding interference type.

[0034] Among them, the geometric hard collision region refers to the direct physical overlap between the static 3D solid model of the pipeline and the environmental model in space. This type of interference usually indicates an incorrect installation position during the design phase and must be eliminated unconditionally. The dynamic operation interference region refers to the overlap between the thermal deformation envelope or vibration safety envelope of the static entity and the environmental model, even though no collision has occurred, indicating that the pipeline is at risk of compression or collision during operation. The maintenance space interference region refers to the intrusion of the maintenance space envelope by surrounding components, making it impossible to carry out subsequent maintenance work. Based on the geometric hard collision region, dynamic operation interference region, and maintenance space interference region, the system can accurately determine the interference region and its corresponding interference type. The technical value of this classification and detection mechanism lies in its decoupling of the complex spatial conflicts that are mixed together into three independent physical problems, enabling subsequent optimization strategies to be targeted and avoiding blind adjustments or over-design caused by the inability to distinguish the causes of interference in traditional methods.

[0035] After identifying the type of interference, the process of generating an optimized layout scheme for the target pipeline based on a pre-defined pipeline layout adjustment rule base, with the interference area and type as constraints, is essentially an automated decision-making process based on expert knowledge.

[0036] Specifically, step S400 includes the following steps: S401. Match the target adjustment strategy corresponding to the interference type from the pipeline layout adjustment rule base; S402. Based on the target adjustment strategy, the spatial positions of the pipeline components associated with the interference area are adjusted to generate the layout optimization scheme.

[0037] The pipeline layout adjustment rule base contains a priority mapping relationship that conforms to engineering mechanics principles and construction specifications. Further, step S401 includes the following steps: S401a. When the interference type is thermal expansion interference, the expansion joint displacement strategy or pipeline route fine-tuning strategy shall be preferentially matched as the target adjustment strategy. S401b: When the interference type is vibration interference, the matching support and hanger position change strategy is used as the target adjustment strategy; S401c When the interference type is maintenance space interference, the matching operation component position adjustment strategy is used as the target adjustment strategy.

[0038] For example, when the interference type is thermal expansion interference, the priority is to match an expansion joint relocation strategy or a pipeline routing fine-tuning strategy as the target adjustment strategy. This is because expansion joints are flexible elements specifically designed to absorb thermal displacement, and adjusting their position or specifications is the most direct way to solve thermal expansion problems with minimal impact on system stiffness; while pipeline routing fine-tuning avoids obstacles by changing the route, suitable for scenarios with limited local space. When the interference type is vibration interference, the target adjustment strategy is to match a support and hanger position change strategy. The root cause of vibration problems is often insufficient support stiffness or resonance. By adding, removing, or moving supports and hangers, the boundary conditions and natural frequencies of the piping system can be effectively changed, thereby avoiding the resonance zone or reducing the amplitude. When the interference type is maintenance space interference, the target adjustment strategy is to match an operating component position adjustment strategy. For example, adjusting the orientation of valve handwheels, relocating instrument mounting bases, or replacing with compact pipe fittings to ensure that maintenance personnel have sufficient operating clearance. It should be understood that the above strategies are only preferred examples. In practical applications, the rule base can also include various strategies such as pipe diameter change, material replacement, and insulation layer thinning, and can be automatically combined and used according to the severity of the interference.

[0039] After determining the target adjustment strategy, the system does not simply output suggestions, but automatically performs spatial adjustments and verifies them. Further, step S402 includes the following steps: S402a. Determine the adjustment direction and adjustment distance of the pipeline component based on the target adjustment strategy; S402b. Move the pipeline component according to the adjustment direction and the adjustment distance, and recalculate the multidimensional spatial envelope model after moving it. If the updated multidimensional spatial envelope model does not interfere with the environment model, output the current adjustment result as the layout optimization scheme.

[0040] For example, for the expansion joint relocation strategy, the system automatically calculates the optimal new position of the expansion joint along the pipeline axis based on the thermal expansion vector and the available surrounding space; for the support and hanger change strategy, the system calculates the coordinates of the new support point that can effectively suppress the amplitude based on the vibration modal analysis results. More importantly, this application introduces a rigorous iterative verification closed loop to ensure the absolute feasibility of the optimization scheme. The pipeline component is moved according to the adjustment direction and adjustment distance, and the multidimensional spatial envelope model is recalculated after the movement. If the updated multidimensional spatial envelope model does not interfere with the environmental model, the current adjustment result is output as the layout optimization scheme.

[0041] To address potential coupling interference or secondary interference caused by adjustments under complex operating conditions, this embodiment further constructs an automatic iterative optimization mechanism. Furthermore, step S402b includes the following steps: S402ba: Update the current adjustment results to a new three-dimensional spatial model and regenerate the corresponding multi-dimensional spatial envelope model. S402bb: Perform secondary interference detection between the regenerated multidimensional spatial envelope model and the environmental model; S402bc. If interference regions still exist after secondary interference detection, the pipeline components with interference regions are iteratively adjusted based on the pipeline layout adjustment rule base until the preset non-interference convergence condition is met. S402bd When the interference-free convergence condition is met, the final iterative adjustment result is determined as the layout optimization scheme.

[0042] It is important to note that each iteration is based on the latest geometric state and physical parameters, rather than outdated static data. Subsequently, a second interference detection is performed between the regenerated multidimensional spatial envelope model and the environment model. If interference regions still exist after the second interference detection, the pipeline components with interference regions are iteratively adjusted based on the pipeline layout adjustment rule base until the preset interference-free convergence condition is met. This interference-free convergence condition is a key criterion for ensuring algorithm termination and result reliability.

[0043] As a preferred implementation, the interference-free convergence condition can be defined as the volume of all types of interference regions being zero for a predetermined number of times. As another optional implementation, considering manufacturing tolerances and installation errors in actual engineering, the interference-free convergence condition can also be defined as the dynamic operating interference gap being greater than a preset safety threshold (e.g., 20mm) and the net distance for maintenance space being greater than the minimum operating size (e.g., 600mm). Furthermore, to prevent the algorithm from entering an infinite loop, a maximum iteration limit should be set (e.g., 50 iterations). When the limit is reached and convergence is still not complete, the system outputs the current optimal solution and marks the remaining risk points for manual review. When the interference-free convergence condition is met, the final iterative adjustment result is determined as the layout optimization scheme. This iterative closed-loop mechanism fundamentally solves the defects of traditional technologies that involve "checking but not modifying" or "modifying but not verifying," achieving fully automated processing from problem discovery to solution verification, significantly improving design quality and efficiency.

[0044] After obtaining a layout optimization scheme that meets the convergence criteria, this method can be further extended to the project delivery stage. In response to receiving a confirmation instruction for the layout optimization scheme, prefabrication drawings, material usage lists, and 3D construction handover documents for the target pipeline are automatically generated based on the confirmed scheme. Since the final layout scheme has undergone rigorous verification using multi-dimensional spatial envelopes, the directly exported prefabrication drawings naturally include implicit design requirements such as thermal expansion compensation, vibration avoidance space, and maintenance access, eliminating the need for secondary refinement or on-site corrections. This not only bridges the data gap between design and manufacturing but also effectively shortens the conversion cycle from design optimization to on-site installation, truly realizing a digital closed loop for industrial pipeline design.

[0045] like Figure 2 As shown, this embodiment also provides a multi-dimensional spatial interference detection and layout optimization system for industrial pipelines. This system is a physical deployment of the multi-dimensional spatial interference detection and layout optimization method in the aforementioned embodiments, aiming to achieve full-process automation through a modular architecture. The system includes a model acquisition module 1, an envelope generation module 2, an interference detection module 3, and a layout optimization module 4, which are sequentially connected.

[0046] The model acquisition module 1 is used to acquire the three-dimensional spatial model of the target pipeline and its operating parameters. Specifically, as the system's data entry point, the model acquisition module 1 is responsible not only for importing the basic geometric model from external CAD / BIM software or a local database, but also for cleaning and binding multi-source heterogeneous data. For example, this module can read pipe material properties (such as material, wall thickness, coefficient of linear expansion, etc.) from the pipeline parameter library through an API interface and accurately associate them with the imported single-segment pipeline geometry and topology, thereby constructing an initial solid model carrying complete physical properties. This data preprocessing mechanism ensures that all subsequent analyses are based on a unified and accurate data benchmark, avoiding manual verification errors caused by the separation of model and parameters.

[0047] The envelope generation module 2 is used to spatially expand the three-dimensional spatial model based on operating condition parameters, generating a multi-dimensional spatial envelope model that includes a dynamic operating envelope and a maintenance operation envelope. In its implementation, the envelope generation module 2 incorporates multiple physics calculation engines and geometric modeling algorithms. Upon receiving an attributed model from the model acquisition module 1, this module can automatically call a thermodynamic solver to calculate the thermal deformation boundary, a dynamic response analyzer to estimate the vibration sweep range, and generate a maintenance space entity according to preset maintenance specifications. More importantly, this module possesses geometric fusion capabilities, enabling it to merge multiple independent envelope surfaces or envelope volumes into a unified, downstream-recognizable single geometric object through Boolean operations. This design, which encapsulates complex physical calculations within an independent module, allows the system to flexibly adapt to the envelope construction needs of different industrial scenarios without modifying the core detection logic.

[0048] The interference detection module 3 is used to perform interference detection between the multidimensional spatial envelope model and the preset environmental model to determine the interference region and the corresponding interference type. To improve detection efficiency and support refined result classification, the interference detection module 3 is further divided into multiple dedicated functional units.

[0049] Furthermore, the interference detection module 3 includes a geometric collision detection unit, a dynamic interference detection unit, an operation and maintenance interference detection unit, and an interference classification unit. The geometric collision detection unit is specifically used to perform collision calculations between the 3D spatial model and the environment model to determine the geometric hard collision region. This typically employs efficient bounding box trees (BVH) or spatial segmentation algorithms to achieve millisecond-level static collision identification. The dynamic interference detection unit is used to perform collision calculations between the dynamic operating envelope and the environment model to determine the dynamic operating interference region. This unit needs to handle non-rigid envelope boundaries and may involve more complex mesh intersection or distance field queries. The operation and maintenance interference detection unit is used to perform collision calculations between the operation and maintenance operation envelope and the environment model to determine the operation and maintenance space interference region, focusing on whether discrete functional space entities are encroached upon. The interference classification unit is used to comprehensively determine the final interference region and the corresponding interference type based on the geometric hard collision region, the dynamic operating interference region, and the operation and maintenance space interference region. This decoupled unit architecture design not only allows the system to schedule each detection task in parallel based on hardware resources to improve computing speed, but also gives the detection results a natural structured type label, laying a data foundation for subsequent differentiated display and targeted optimization.

[0050] The layout optimization module 4 is used to generate a layout optimization scheme for the target pipeline based on a preset pipeline layout adjustment rule library, using the interference region and interference type as constraints. Essentially, the layout optimization module 4 is an intelligent decision engine integrating expert knowledge and search algorithms. It receives structured interference reports from the interference detection module 3, converts them into mathematical constraints or rule triggering conditions, and then automatically optimizes within a preset adjustment strategy space. For example, when a signal of the "thermal expansion interference" type is received, the module automatically activates subroutines for expansion joint displacement or route fine-tuning; when "vibration interference" is detected, it triggers the support stiffness check and position recalculation process. Furthermore, the module has a built-in iterative verification closed loop, which automatically calls the envelope generation module 2 and the interference detection module 3 for secondary verification after each adjustment until the interference-free convergence condition is met. In this way, the layout optimization module 4 transforms the original trial-and-error process relying on manual experience into a standardized automatic calculation process, significantly improving the reliability and generation efficiency of the design scheme.

[0051] It should be understood that, although Figure 1The diagram illustrates a linear arrangement of the modules, but this is merely a schematic representation of the logical data flow and not a limitation on the physical deployment or execution order. In other implementations, the modules can be software functional units integrated on the same processor or microservice components distributed across different servers; data interaction between modules can take various forms, such as direct memory access, message queue passing, or database read / write, as long as the aforementioned functional logic can be achieved.

[0052] Furthermore, this application also provides a computer-readable storage medium storing a computer program. When executed by a processor, the computer program can implement the aforementioned method for multi-dimensional spatial interference detection and layout optimization of industrial pipelines. This storage medium can be a tangible, non-transitory storage device, such as a hard disk, optical disk, flash memory, or ROM, or a program product that can be transmitted and loaded into a computing device via wired or wireless means. By embedding the above method into program instructions on a storage medium, the technical solution of this application is freed from the limitations of specific hardware environments, facilitating distribution and deployment on different industrial design software platforms or cloud computing environments, thereby maximizing the transformation and protection of technological value.

[0053] To facilitate understanding, the multi-dimensional spatial interference detection and layout optimization method for industrial pipelines is now applied to a specific design optimization scenario for high-temperature ducts in waste incineration boilers. It should be understood that this embodiment is merely an illustrative application example and not a limitation on the scope of protection of this application. Other types of industrial pipelines or different operating parameters can be adapted to the logic of this embodiment.

[0054] In this application scenario, the target pipeline is the primary air duct of a waste incinerator, made of 310S stainless steel, with a designed operating temperature of 420℃. The associated equipment is a high-pressure primary air fan, and the surrounding area is densely arranged with steel frame structures and water-cooled wall tube bundles. In step S100, the system reads the linear expansion coefficient, elastic modulus, and other physical properties of the 310S material from the pipeline parameter library, and combines these with operating condition parameters such as the 420℃ operating temperature, fan vibration amplitude, and minimum operating clearance required by maintenance procedures, binding them to a single duct section model to generate an initial solid model. Subsequently, in step S200, the system automatically generates a multi-dimensional spatial envelope model based on the above parameters. Specifically, for thermodynamic parameters, the duct's axial thermal expansion at 420℃ is calculated to be significant, and the generated thermal deformation envelope expands outward by a predetermined distance from the static outer boundary. For dynamic parameters, the vibration offset is calculated by combining the fan vibration amplitude and duct stiffness, generating a vibration safety envelope. For maintenance parameters, a 600mm maintenance space envelope is generated around operating components such as valves and flanges. After Boolean operations, these three parameters are fused to form a unified multidimensional spatial envelope model.

[0055] In the interference detection stage of step S300, the system performs collision calculations between the aforementioned multi-dimensional spatial envelope model and the boiler plant environment model. The detection results show that at a certain section of the duct near the steel beam, although there is no geometric hard collision between the static three-dimensional spatial model and the steel beam, the remaining gap between its thermal deformation envelope surface and the steel beam is only 15mm. According to the preset judgment threshold, when the remaining gap after thermal expansion is less than 20mm, it is judged as thermal expansion interference. At this time, the five-level warning unit on the system interface immediately marks the location with an orange color code, indicating the risk of thermal vibration interference, and displays the specific gap value and risk description in a pop-up window. It should be understood that the five-level color code warning mechanism includes red representing fatal hard collision, orange representing thermal expansion or vibration interference, yellow representing insufficient maintenance space, blue representing small gap margin, and green representing all standards met. This visualization method greatly improves the intuitiveness and efficiency of risk identification.

[0056] For the aforementioned orange-alert area of ​​thermal expansion interference, the system automatically triggers the layout optimization process in step S400. Based on the pipeline layout adjustment rule library, the system identifies the current interference type as thermal expansion interference and prioritizes matching the expansion joint relocation strategy as the target adjustment strategy. The system automatically calculates the optimal new position of the expansion joint along the duct axis and performs the first spatial position adjustment. After adjustment, a multi-dimensional spatial envelope model is regenerated and a second interference detection is performed. It is found that the gap has increased to 19mm, but it still has not reached the safety threshold of 20mm, and the interference-free convergence condition is not met. The system then enters an iterative loop. During the second adjustment, the expansion joint is further relocated and the adjacent pipeline routes are fine-tuned, and the detected gap increases to 22mm. After the third adjustment, the gap finally reaches 25mm, completely eliminating the risk of thermal expansion interference and leaving a reasonable margin, thus meeting the preset interference-free convergence condition. At this point, the system determines the result after the third adjustment as the final layout optimization scheme.

[0057] To more clearly demonstrate the technical value of this application, the following comparative example is set: If traditional BIM technology is used for collision detection based solely on a static 3D spatial model, the static gap between the aforementioned duct and steel beam will appear to be 35mm due to the failure to consider the thermal expansion effect at 420℃. The system will determine this as "no collision" and pass the verification. However, after actual operation, the duct will expand due to heat, causing the gap to be completely swallowed up. The outer wall of the duct will continuously compress the steel beam, ultimately causing local deformation, cracking, and air leakage in the duct, forcing a shutdown and rework. In contrast, this application, by constructing a multi-dimensional spatial envelope model, accurately identifies this implicit thermal expansion interference risk during the design phase and completely eliminates the hidden danger through automatic iterative optimization. This comparison fully demonstrates the irreplaceable nature of this application in solving interference problems under dynamic operating conditions and its significant progress compared to traditional static detection methods.

[0058] After obtaining a layout optimization scheme that meets the convergence conditions and is confirmed by the designers, the system responds to the confirmation command and automatically executes the downstream action of step S400. Based on the optimized final model, it generates prefabricated drawings, a material usage list, and a 3D construction handover document for that section of primary air duct. Since the model already includes full-condition design requirements such as thermal expansion compensation, vibration avoidance space, and maintenance access, the exported prefabricated drawings can be directly used for factory processing and on-site assembly without the need for secondary detailed design or on-site cutting and modification, thereby effectively shortening the project cycle and reducing construction costs.

[0059] Compared with the prior art, the present invention has the following significant advantages: This invention provides a multi-dimensional spatial interference detection and layout optimization method and system for industrial pipelines, including the following steps: acquiring a three-dimensional spatial model and operating condition parameters of the target pipeline; spatially expanding the three-dimensional spatial model based on the operating condition parameters to generate a multi-dimensional spatial envelope model containing a dynamic operating envelope and a maintenance operation envelope; performing interference detection between the multi-dimensional spatial envelope model and the environmental model to determine the interference region and type; and generating a layout optimization scheme based on a pipeline layout adjustment rule base, using the interference region and type as constraints. By constructing a multi-dimensional spatial envelope model that integrates static geometry, dynamic operating conditions, and maintenance operation requirements, it overcomes the bottleneck of traditional BIM collision detection, which is limited to static geometric dimensions. Its core principle lies in transforming physical field parameters such as temperature and vibration, as well as maintenance space requirements, into calculable geometric envelope boundaries in three-dimensional space, enabling isomorphic mapping between the verification dimensions in the design phase and the actual operating conditions. This allows for accurate identification of hidden risks such as thermal expansion and compression, vibration and impact, and insufficient maintenance space, which are undetectable by traditional methods, during the pre-design phase, significantly reducing the failure rate and on-site rework after commissioning.

[0060] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the module or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0061] It should be noted that in this application, relational terms such as "first" and "second" are used merely 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. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0062] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A method for multi-dimensional spatial interference detection and layout optimization of industrial pipelines, characterized in that, Including the following steps: Obtain a three-dimensional spatial model of the target pipeline and its operating parameters; Based on the operating condition parameters, the three-dimensional spatial model is spatially expanded to generate a multi-dimensional spatial envelope model that includes a dynamic operating envelope and an operation and maintenance envelope. The multidimensional spatial envelope model is subjected to interference detection with a preset environmental model to determine the interference region and the corresponding interference type. Using the interference region and the interference type as constraints, and based on a preset pipeline layout adjustment rule library, a layout optimization scheme for the target pipeline is generated.

2. The method according to claim 1, characterized in that, The step of spatially expanding the three-dimensional spatial model based on the operating condition parameters to generate a multi-dimensional spatial envelope model containing a dynamic operating envelope and an operation and maintenance envelope includes: Based on the thermodynamic parameters in the operating condition parameters, the three-dimensional spatial model is thermally deformed and expanded to generate a thermal deformation envelope surface. Based on the dynamic parameters in the operating condition parameters, the three-dimensional spatial model is subjected to vibration offset expansion to generate a vibration safety envelope surface; Based on the operation and maintenance parameters in the operating condition parameters, the operation space of the three-dimensional spatial model is expanded to generate a maintenance space envelope. The thermal deformation envelope, the vibration safety envelope, the maintenance space envelope, and the three-dimensional space model are fused and superimposed to obtain the multi-dimensional space envelope model.

3. The method according to claim 1, characterized in that, The step of performing interference detection between the multidimensional spatial envelope model and a preset environmental model to determine the interference region and the corresponding interference type includes: Collision calculations are performed between the three-dimensional spatial model, the dynamic operation envelope, and the operation and maintenance envelope and the environmental model to determine the geometric hard collision region, the dynamic operation interference region, and the operation and maintenance space interference region, respectively. Based on the geometric hard collision region, the dynamic operation interference region, and the operation and maintenance space interference region, the interference region and the corresponding interference type are determined.

4. The method according to claim 1, characterized in that, The step of generating a layout optimization scheme for the target pipeline based on a preset pipeline layout adjustment rule base, using the interference region and the interference type as constraints, includes: Match the target adjustment strategy corresponding to the interference type from the pipeline layout adjustment rule base; Based on the target adjustment strategy, the spatial positions of pipeline components associated with the interference region are adjusted to generate the layout optimization scheme.

5. The method according to claim 4, characterized in that, The step of matching the target adjustment strategy corresponding to the interference type from the pipeline layout adjustment rule base includes: When the interference type is thermal expansion interference, the expansion joint displacement strategy or pipeline route fine-tuning strategy is preferentially matched as the target adjustment strategy. When the interference type is vibration interference, the matching support and hanger position change strategy is used as the target adjustment strategy; When the interference type is maintenance space interference, the matching operation component point adjustment strategy is used as the target adjustment strategy.

6. The method according to claim 4, characterized in that, The step of adjusting the spatial positions of pipeline components associated with the interference region based on the target adjustment strategy to generate the layout optimization scheme includes: The adjustment direction and adjustment distance of the pipeline component are determined based on the target adjustment strategy; The pipeline component is moved according to the adjustment direction and the adjustment distance, and the multidimensional spatial envelope model is recalculated after the movement. If the updated multidimensional spatial envelope model does not interfere with the environment model, the current adjustment result is output as the layout optimization scheme.

7. The method according to claim 6, characterized in that, The process involves moving the pipeline component according to the adjustment direction and the adjustment distance, and recalculating the multidimensional spatial envelope model after the movement. If the updated multidimensional spatial envelope model does not interfere with the environment model, the current adjustment result is output as the layout optimization scheme, including: Update the current adjustment results to the new three-dimensional spatial model and regenerate the corresponding multi-dimensional spatial envelope model; The regenerated multidimensional spatial envelope model is subjected to secondary interference detection with the environmental model; If interference regions still exist after secondary interference detection, the pipeline components with interference regions are iteratively adjusted based on the pipeline layout adjustment rule base until the preset non-interference convergence condition is met. When the interference-free convergence condition is met, the final iterative adjustment result is determined as the layout optimization scheme.

8. The method according to claim 1, characterized in that, The acquisition of the three-dimensional spatial model of the target pipeline and the operating parameters of the target pipeline includes: Obtain the pipe material properties of the target pipeline from the preset pipeline parameter library; Bind the pipe material properties and the operating condition parameters to the corresponding single-segment pipeline model; An initial entity model is generated based on the bound single-segment pipeline model, and the initial entity model is used as the three-dimensional space model.

9. A multi-dimensional spatial interference detection and layout optimization system for industrial pipelines, characterized in that, include: The model acquisition module is used to acquire the three-dimensional spatial model of the target pipeline and the operating parameters of the target pipeline. The envelope generation module is used to spatially expand the three-dimensional spatial model based on the operating condition parameters to generate a multi-dimensional spatial envelope model that includes a dynamic operating envelope and an operation and maintenance envelope. The interference detection module is used to perform interference detection between the multidimensional spatial envelope model and the preset environmental model to determine the interference region and the corresponding interference type. The layout optimization module is used to generate a layout optimization scheme for the target pipeline based on a preset pipeline layout adjustment rule library, using the interference region and the interference type as constraints.

10. The system according to claim 9, characterized in that, The interference detection module includes: A geometric collision detection unit is used to perform collision calculations between the three-dimensional spatial model and the environment model to determine the geometric hard collision area. A dynamic interference detection unit is used to perform collision calculations between the dynamic running envelope and the environment model to determine the dynamic running interference region. The operation and maintenance interference detection unit is used to perform collision calculation between the operation and maintenance operation envelope and the environment model to determine the operation and maintenance space interference region. An interference classification unit is used to determine the interference region and the corresponding interference type based on the geometric hard collision region, the dynamic operation interference region, and the operation and maintenance space interference region.

Images