A process equipment skid design method and device and computer equipment

Abstract

The application relates to the field of equipment engineering design, and discloses a process equipment sled design method and device and computer equipment. The method comprises the following steps: an initial three-dimensional model of process equipment is established by using process package parameters and equipment conditions; collision analysis is performed on the initial three-dimensional model to obtain a first analysis result, and the element arrangement in the initial three-dimensional model is adjusted according to the first analysis result until there is no collision point in the initial three-dimensional model, and a target three-dimensional model is obtained; the target three-dimensional model is divided into multiple sled units based on transportation limiting conditions, and a sled design result is generated based on the sled units, wherein the sled design result comprises at least one of sled division information, sled interface information and transportation fixed point arrangement information. The application solves the problems of large on-site welding amount, long installation period and difficult interface docking caused by insufficient design collaboration and missing transportation conditions in the prior art.

Description

Technical Field

[0001] This invention relates to the field of equipment engineering design, and specifically to a skid-mounted design method, apparatus, and computer equipment for process equipment. Background Technology

[0002] As the development of small and micro gas fields continues, these fields are generally characterized by remote geographical locations, scattered distribution, unstable gas sources, and difficulties in large-scale extraction. Consequently, the scale of downstream natural gas purification and liquefaction is also relatively small. To adapt to these conditions, liquefaction plants are gradually adopting skid-mounted lightweight equipment to achieve rapid deployment, shorten construction cycles, control engineering costs, and ensure system flexibility and mobility. Against this backdrop, the engineering application of skid-mounted lightweight LNG equipment has developed rapidly.

[0003] In the existing technology, the traditional factory construction method has the following shortcomings: the design stage lacks prior consideration of transportation conditions and the coordination between various disciplines is insufficient, which makes it easy for equipment, pipelines and cable trays to interfere with each other. On-site installation requires a lot of rework and on-site welding, which not only prolongs the construction period, but also increases the difficulty of on-site implementation such as interface misalignment and transportation risks. Summary of the Invention

[0004] In view of this, embodiments of the present invention provide a skid-mounted design method, apparatus and computer equipment for process equipment, in order to solve the problems of large on-site welding volume, long installation cycle and difficult interface docking caused by insufficient design coordination and lack of consideration for transportation conditions in the prior art.

[0005] In a first aspect, embodiments of the present invention provide a skid-mounted design method for process equipment, the method comprising: An initial three-dimensional model of the process equipment is established using process package parameters and equipment conditions. Collision analysis is performed on the initial three-dimensional model to obtain a first analysis result. Based on the first analysis result, the element arrangement in the initial three-dimensional model is adjusted until there are no collision points in the initial three-dimensional model, thus obtaining the target three-dimensional model. Based on transportation constraints, the target 3D model is divided into multiple skid units, and a skid-mounted design result is generated based on the skid units. The skid-mounted design result includes at least one of the following: skid division information, skid interface information, and transportation fixed point layout information.

[0006] Furthermore, the step of establishing an initial three-dimensional model of the process equipment using process package parameters and equipment conditions includes: The modeling parameters for each professional category are determined based on the process package parameters and the equipment conditions, and the pre-configured model coordinate origin is obtained. The professional category includes at least one of process engineering, equipment engineering, electrical engineering, and structural engineering. Based on the modeling parameters of each professional category and the origin of the model coordinates, generate a 3D sub-model corresponding to each professional category; The three-dimensional sub-models corresponding to each of the aforementioned professional categories are integrated to obtain the initial three-dimensional model.

[0007] Furthermore, the modeling parameters for the process discipline include process component configuration information and equipment shape parameters; the modeling parameters for the equipment discipline include equipment shape parameters and equipment installation parameters; the modeling parameters for the electrical discipline include cable tray specifications and cable laying path conditions; and the modeling parameters for the structural discipline include beam and column layout parameters. The process of generating 3D sub-models corresponding to each of the aforementioned professional categories based on the modeling parameters of each category and the origin of the model coordinates includes: Based on the process component configuration information, the equipment shape parameters, and the model coordinate origin, a first sub-model corresponding to the process discipline is generated; and / or, based on the equipment shape parameters, the equipment installation parameters, and the model coordinate origin, a second sub-model corresponding to the equipment discipline is generated; and / or, based on the cable tray specification information, the cable laying path conditions, and the model coordinate origin, a third sub-model corresponding to the electrical discipline is generated; and / or, based on the beam and column layout parameters and the model coordinate origin, a fourth sub-model corresponding to the structural discipline is generated.

[0008] Furthermore, the method also includes: Monitor the modeling progress of the 3D sub-models for each of the aforementioned professional categories; When the modeling progress reaches the preset progress, obtain the pipe port orientation information and platform structure information; Based on the orifice orientation information and the platform structure information, the 3D sub-model whose modeling progress has reached the preset progress is updated to obtain the updated 3D sub-model. Based on the updated 3D sub-model, the 3D sub-models of other related professional categories are adjusted collaboratively to obtain the collaboratively adjusted 3D sub-model.

[0009] Furthermore, the first analysis results include the collision location, collision type, and professional category of at least one collision point; The step of adjusting the element arrangement in the initial 3D model based on the first analysis result until there are no collision points in the initial 3D model, thereby obtaining the target 3D model, includes: Based on the collision location, the collision type, and the professional category of the hit, an adjustment strategy is determined for each collision point, wherein the adjustment strategy includes at least one of the following: pipeline spatial routing, cable tray laying path, equipment installation location, and steel structure platform layout. Based on the adjustment strategy, the element arrangement at the corresponding collision position in the initial 3D model is adjusted to obtain a candidate 3D model. The second analysis result obtained after the candidate 3D model undergoes collision analysis is that there are no collision points. Then, the candidate 3D model is used as the target 3D model.

[0010] Furthermore, the transport restrictions include maximum permissible width, maximum permissible height, and single-axle load capacity; The method of dividing the target 3D model into multiple skid units based on transportation constraints includes: Based on the process package parameters, process equipment is selected to obtain equipment selection results; Based on the equipment selection results, the maximum allowable width, the maximum allowable height, and the single-axis load, the boundary conditions for dividing the skid unit are determined; The target 3D model is divided into multiple pry bar units according to the boundary conditions.

[0011] Furthermore, after obtaining the target 3D model, the method further includes: Obtain the installation temperature parameters and operating temperature parameters of the cryogenic pipeline; Based on the installation temperature parameters and the operating temperature parameters, analyze whether the pipe stress in the target three-dimensional model meets the preset stress conditions, and at the same time analyze whether the force on the equipment pipe opening in the target three-dimensional model meets the preset force conditions, to obtain the third analysis result; Based on the third analysis result, a sliding support, a guide support, or a flexible connection is set in the target three-dimensional model to obtain an optimized target three-dimensional model.

[0012] Furthermore, after dividing the target 3D model into multiple skid units based on transportation constraints, the method further includes: Based on the reference point of each skid unit, mark the position coordinates of the skid external interface in the target 3D model; Obtain the interface definition information for each of the skid external interfaces, wherein the interface definition information includes at least one of the following: interface tag number, flange specification, sealing surface type, and medium flow direction; The interface definition information and the position coordinates of the corresponding external interface are associated and annotated to the target 3D model to obtain the annotated target 3D model; Generate the corresponding external interface information based on the labeled target 3D model.

[0013] Secondly, embodiments of the present invention provide a skid-mounted design device for process equipment, the device comprising: The module is used to create an initial 3D model of the process equipment using process package parameters and equipment conditions. The analysis module is used to perform collision analysis on the initial three-dimensional model, obtain a first analysis result, and adjust the element arrangement in the initial three-dimensional model according to the first analysis result until there are no collision points in the initial three-dimensional model, thereby obtaining the target three-dimensional model. The generation module is used to divide the target 3D model into multiple skid units based on transportation constraints, and generate skid-mounted design results based on the skid units. The skid-mounted design results include at least one of skid division information, skid interface information, and transportation fixed point layout information.

[0014] Thirdly, embodiments of the present invention provide a computer device, including: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the method described in the first aspect or any corresponding embodiment thereof.

[0015] Fourthly, embodiments of the present invention provide a computer-readable storage medium storing computer instructions for causing a computer to perform the method described in the first aspect or any corresponding embodiment thereof.

[0016] The method provided in this application has the following beneficial effects: The method provided in this application establishes an initial three-dimensional model of the process equipment using process package parameters and equipment conditions. This enables the integration and visualization of multi-disciplinary data in the early stages of design, laying a precise foundation for subsequent collaborative optimization. By performing collision analysis on the initial three-dimensional model, a first analysis result is obtained. Based on the first analysis result, the element arrangement in the initial three-dimensional model is adjusted until there are no collision points in the initial three-dimensional model, resulting in a target three-dimensional model. This eliminates all interference problems between equipment, pipelines, and cable trays before factory manufacturing, significantly reducing on-site rework and welding operations and shortening the construction cycle. By dividing the target three-dimensional model into multiple skid units based on transportation constraints, and generating skid-mounted design results based on the skid units, the skid-mounted design results include at least one of the following: skid division information, skid interface information, and transportation fixing point layout information. This ensures that the size and weight of the skids match the transportation path and achieves precise prefabrication of skid interfaces and standardized arrangement of transportation fixing points, thereby enabling rapid placement and connection on-site and further improving deployment efficiency and installation quality. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic flowchart of a skid-mounted design method for process equipment according to an embodiment of the present invention; Figure 2 This is a schematic flowchart of another skid-mounted design method for process equipment according to an embodiment of the present invention; Figure 3 This is a flowchart illustrating another skid-mounted design method for process equipment according to an embodiment of the present invention; Figure 4 This is a schematic flowchart of a low-temperature pipeline stress analysis and structural optimization method according to an embodiment of the present invention; Figure 5 This is a flowchart illustrating the method for labeling and generating information for external interfaces according to an embodiment of the present invention; Figure 6 This is a structural block diagram of a skid-mounted design device for process equipment according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] According to embodiments of the present invention, a method, apparatus, and computer device for skid-mounted design of process equipment are provided. It should be noted that the steps shown in the flowcharts in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowcharts, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0021] This embodiment provides a skid-mounted design method for process equipment. Figure 1 This is a flowchart of a skid-mounted design method for process equipment according to an embodiment of the present invention, such as... Figure 1 As shown, the process includes the following steps: Step S101: Establish an initial three-dimensional model of the process equipment using process package parameters and equipment conditions.

[0022] In this embodiment, process package parameters refer to the basic data of the process system determined by the professional process package design, including the raw gas composition, inlet pressure and temperature, LNG target output, refrigeration process type, and outlet LNG pressure and temperature. These are the core basis for equipment selection and system configuration. Equipment conditions refer to the equipment dimensions and installation parameters determined after equipment selection calculation based on the process package parameters. These parameters are used to limit the geometric occupancy and interface positions of the equipment in three-dimensional space. The initial three-dimensional model refers to the preliminary integrated model formed by integrating three-dimensional sub-models of multiple disciplines such as process, equipment, electrical, and structure. This model has not yet undergone collision checking and optimization adjustments, but its construction process has established a unified coordinate benchmark, modeling standard, and data association relationship between disciplines.

[0023] Specifically, the process begins by calculating equipment selection based on process package parameters, determining key information such as equipment model, size, and pipe orientation, and creating an equipment condition list. Based on this, multi-disciplinary modeling parameters are extracted and unified simultaneously: the process discipline defines pipeline routing, valve and instrument layout; the equipment discipline determines the spatial orientation of the equipment; the electrical discipline plans the cable tray routing; and the structural discipline determines the beam, column, base, and lifting point layout based on equipment weight. A key aspect of modeling is pre-unifying the model coordinate origin (usually based on the lower left corner of the skid, with length, width, and height corresponding to the X, Y, and Z axes). Each discipline uses this as a positioning basis to establish a 3D sub-model, and dynamic collaboration is achieved through preset data extraction nodes, allowing for timely feedback and adjustments to ensure matching of equipment, pipelines, and structures. During modeling, appropriate software such as PDMS and Revit is selected based on project complexity; for identical or symmetrical equipment, array and mirroring methods are used to quickly generate and calibrate positions; expansion interfaces and virtual placement areas are reserved to avoid subsequent interference; transportation constraints are introduced as boundary constraints to control overall dimensions; and space for flexible elbows or compensators is reserved for pipelines operating in low-temperature conditions.

[0024] Step S102: Perform collision analysis on the initial 3D model to obtain the first analysis result, and adjust the element arrangement in the initial 3D model according to the first analysis result until there are no collision points in the initial 3D model, and obtain the target 3D model.

[0025] In this embodiment of the application, the first analysis result refers to the report file generated by collision analysis, which includes at least the spatial coordinates of each collision point, the collision type (such as hard collision, soft collision, insufficient spacing), and the professional category information involved; the collision point refers to the location where two or more model elements interfere in space or fail to meet the preset safety distance, and is the direct object of subsequent design optimization; the target three-dimensional model refers to the final three-dimensional model after multiple rounds of collision analysis and iterative adjustment, in which all collision points have been eliminated and the spatial relationship between various professional elements is coordinated, and this model serves as the basis for subsequent pry bar division and detailed design.

[0026] Specifically, collision analysis and iterative adjustments to the initial 3D model are a multi-disciplinary collaborative optimization process, the core of which is to eliminate design defects during the modeling phase. First, based on the characteristics of the skid-mounted equipment and project requirements, customized collision detection parameters are set (e.g., hard collision (physical overlap) detection between process piping and steel structures, soft collision (insufficient spacing) detection between cable trays and high-temperature pipes, and ergonomic safety distance detection between operating passages and protruding parts of equipment). Collision detection can be carried out comprehensively after the sub-models are integrated, or it can be conducted in stages and by region. After the collision analysis is completed, a report containing the coordinates and types of collision points and the relevant disciplines is generated. Multi-disciplinary collaborative analysis is required, and adjustment strategies are formulated based on factors such as function, space, manufacturing, and transportation (e.g., for collisions between pipes and structural beams, prioritize adjusting the pipe routing; if adjustment is not possible, optimize the beam; for insufficient spacing between cable trays and low-temperature pipes, adjust the cable tray layout or path; for interference between equipment and platforms, fine-tune the equipment position or modify the platform dimensions). After adjustment, a candidate model is generated, and collision analysis is performed again, iterating repeatedly until there are no collision points. A report and rectification record are kept for each adjustment.

[0027] Furthermore, collision detection parameters can be set with differentiated thresholds based on the importance of the area: stricter spacing requirements are set near equipment nozzles, while more lenient standards are set for non-critical areas. Collision analysis should incorporate reserved expansion space detection, pre-setting a cold contraction displacement envelope area for cryogenic pipelines to detect whether it interferes with other elements during normal temperature modeling, thus avoiding secondary collisions under cryogenic conditions. For equipment or pipelines with vibration risks, vibration gap detection can be added to ensure sufficient safe distance between adjacent elements, preventing wear or collisions due to vibration during operation. During iterative adjustments, visualization methods such as conflict heatmaps are used to quickly locate high-incidence collision areas and prioritize their optimization; when there are many collision points, rectification priorities are set according to collision type and criticality, adjustments are made in batches, and local collision verification is performed after each batch of rectification to improve iteration efficiency.

[0028] Step S103: Divide the target 3D model into multiple skid units based on transportation constraints, and generate skid-mounted design results based on the skid units. The skid-mounted design results include at least one of the following: skid division information, skid interface information, and transportation fixed point layout information.

[0029] In this embodiment, transportation constraints refer to the physical boundaries and load-bearing constraints that the skid unit must meet under transportation methods such as road, rail, or sea, such as maximum width and height, single axle load, bridge weight limit, tunnel clearance, and turning radius; a skid unit refers to an independent module that divides the process system according to the principles of functional integration, transportation feasibility, and interface minimization; skid-mounted design results refer to the complete set of design output documents generated based on skid division; skid division information refers to the technical information that clarifies the boundaries, dimensions, weight, functional positioning, and spatial relationships of each skid; skid-to-skid interface information refers to the technical list that records the interfaces of pipes, cables, instrument signals, etc. that need to be connected on-site between skids, including source skid, target skid, pipeline number, medium, pipe diameter, pressure rating, flange specifications, sealing surface type, and connection method; and transportation fixed point layout information refers to the technical information that indicates the location, angle, and stress requirements of the dedicated points used for binding, fixing, and supporting the skid unit during transportation.

[0030] First, transportation constraints are obtained through an assessment of the actual transportation routes for the specific project. Based on this, equipment selection calculations are performed according to the process package parameters to determine the model and dimensions of each process piece of equipment. Then, considering boundary values ​​such as maximum width, maximum height, and single-shaft load capacity from the transportation constraints, the boundary conditions for dividing the skid units are determined. The division process follows the principle of functional integration, making each skid unit an independent subsystem (e.g., feed gas skid, dehydration skid, heavy hydrocarbon removal skid, LNG loading skid, heavy hydrocarbon loading skid, etc.), while ensuring that the external dimensions of all skid units are controlled within the allowable transportation range.

[0031] After the skid blocks are divided, three design deliverables are generated based on the target 3D model: a skid block division diagram, which clarifies the boundary lines, reference point coordinates, external dimensions, total weight, and relative positional relationships between each skid block in the 3D model, and marks the lifting point and center of gravity positions; a skid interface list, which extracts all pipe and electrical interface information at the boundary of each skid block in the model, and marks the tag number (corresponding to the piping and instrumentation diagram), coordinates (based on the skid block's own reference point or the plant-wide unified coordinate system), flange specifications (such as DN80, PN40, or Class 150 / 300), sealing surface type (such as raised face, flat face, ring connection face), and medium flow direction; and a transportation fixing point layout diagram, which performs stress verification based on the weight distribution of the skid block units and transportation conditions, and marks the wire rope binding points, chain hoist hook points, welded block positions, and support saddle arrangements in the model, clarifying the angle and load-bearing requirements of each fixing point.

[0032] Transportation restrictions are determined based on the actual project conditions, selecting appropriate modes of transport such as road, rail, or sea freight, and adjusting the boundary accordingly. The division of skid units considers on-site lifting capacity; overweight skids are split according to lifting tonnage and radius, or temporary supports are added to skids with a high center of gravity. The marking of skid interfaces covers connection methods such as flanges, welding, clamps, and quick couplings, and indicates the corresponding bevel type or fastener specifications. The layout of transportation fixing points is integrated with the skid structure design, using pre-embedded lifting lugs on structural beams and setting transportation supports, and verifying strength and stiffness through finite element analysis. When generating the skid-mounted design results, a packing list and transportation sequence diagram are simultaneously output, clearly defining the delivery and placement order of each skid to avoid obstruction of the on-site lifting path.

[0033] This embodiment provides a skid-mounted design method for process equipment. Figure 2 This is a flowchart of a skid-mounted design method for process equipment according to an embodiment of the present invention, such as... Figure 2 As shown, the process includes the following steps: Step S201: Establish an initial three-dimensional model of the process equipment using process package parameters and equipment conditions.

[0034] In this embodiment of the application, an initial three-dimensional model of the process equipment is established using process package parameters and equipment conditions, including: Step A1: Determine the modeling parameters for each professional category based on the process package parameters and equipment conditions, and obtain the pre-configured model coordinate origin. The professional categories include at least one of the following: process engineering, equipment engineering, electrical engineering, and structural engineering.

[0035] Specifically, process package parameters refer to the basic data of the process system determined by the professional process package design, including the composition of the feed gas (such as the content of methane, carbon dioxide, hydrogen sulfide, etc.), inlet gas pressure and temperature, LNG target output, refrigeration process type (such as mixed refrigerant, nitrogen expansion, etc.), and outlet LNG pressure and temperature. These are the core basis for equipment selection and system configuration. Equipment conditions refer to the equipment's external dimensions and installation parameters (such as equipment foundation dimensions, pipe orientation, installation height, reserved operating space, etc.) determined after equipment selection calculations based on the process package parameters. These parameters define the geometric footprint and interface positions of the equipment in three-dimensional space. Professional categories include process engineering, equipment engineering, electrical engineering, and structural engineering. The disciplines are categorized into different design dimensions, including piping and process flow, equipment body and installation, cable trays and laying, and beam and column load-bearing structures. Modeling parameters refer to the specific technical data used by each discipline in 3D modeling, such as process component configuration information and equipment shape parameters for process disciplines, equipment shape parameters and installation parameters for equipment disciplines, cable tray specifications and laying path conditions for electrical disciplines, and beam and column layout parameters for structural disciplines. The model coordinate origin is a pre-defined reference point in the 3D model space, usually with the lower left corner of the skid as the coordinate origin, the X-axis along the length of the skid, the Y-axis along the width, and the Z-axis along the height, to ensure accurate alignment and coordination of the models of each discipline in space.

[0036] Specifically, firstly, based on the process package parameters given by the project, such as feed gas composition, inlet pressure and temperature, target LNG production, and selected refrigeration process, equipment selection calculations are performed to determine the model, dimensions, pipe orientation, and installation requirements of each process equipment, thus forming the equipment conditions. Based on this, the required modeling parameters are extracted for each of the four professional categories: process, equipment, electrical, and structure. For the process category, the piping and instrumentation diagrams and equipment dimensions of the process package are used to determine the piping routing, component configuration, and other modeling information. For the equipment category, the external parameters and installation parameters are used to determine the placement and orientation of the equipment in the model. For the electrical category, the cable tray specifications and cable laying path conditions are used to determine the cable tray routing and layering. For the structural category, the beam and column layout parameters are determined based on load-bearing requirements and equipment layout. Subsequently, a pre-configured model coordinate origin is obtained. This origin serves as the spatial positioning reference for all professional models, ensuring accurate alignment during subsequent integration. By combining the modeling parameters of each professional category with this coordinate origin, corresponding 3D sub-models for the process, equipment, electrical, and structural categories are generated, laying the foundation for subsequent multi-professional collaborative integration. In practice, if there are multiple devices of the same type, they can be quickly generated by array or mirroring during the device modeling process, and the coordinate origin can be used as the reference for positioning. For electrical engineering, if there is a need for multi-layer cable trays, the layer spacing and layering order can be predefined in the modeling parameters to ensure that the cable tray layout meets the laying path conditions and is coordinated with the beam and column positions of the structural engineering.

[0037] Step A2: Generate 3D sub-models for each professional category based on the modeling parameters and model coordinate origin.

[0038] In this embodiment, the modeling parameters for the process engineering include process component configuration information and equipment shape parameters; the modeling parameters for the equipment engineering include equipment shape parameters and equipment installation parameters; the modeling parameters for the electrical engineering include cable tray specifications and cable laying path conditions; and the modeling parameters for the structural engineering include beam and column layout parameters. Based on the modeling parameters and model coordinate origin of each professional category, generate 3D sub-models corresponding to each professional category, including: Based on the process component configuration information, equipment shape parameters, and model coordinate origin, generate the first sub-model corresponding to the process discipline; and / or, based on the equipment shape parameters, equipment installation parameters, and model coordinate origin, generate the second sub-model corresponding to the equipment discipline; and / or, based on the cable tray specifications, cable laying path conditions, and model coordinate origin, generate the third sub-model corresponding to the electrical discipline; and / or, based on the beam and column layout parameters and model coordinate origin, generate the fourth sub-model corresponding to the structural discipline.

[0039] Specifically, the modeling parameters for equipment include the equipment's external shape parameters and installation parameters (such as foundation dimensions, installation elevation, anchor bolt positions, and reserved operating space); the modeling parameters for electrical engineering include cable tray specifications (such as tray width, height, number of layers, and material) and cable laying path conditions (such as main and branch lines, laying height, turning radius, and minimum spacing requirements with other engineering disciplines); and the modeling parameters for structural engineering include beam and column layout parameters (such as the cross-sectional dimensions of main and secondary beams, column spacing, support positions, platform elevation, and reserved lifting point positions). A 3D sub-model refers to a local model independently constructed by each engineering discipline based on its own modeling parameters and a unified coordinate origin in 3D design software (such as PDMS, Revit, and SolidWorks). This includes the first sub-model for process engineering, the second sub-model for equipment engineering, the third sub-model for electrical engineering, and the fourth sub-model for structural engineering. These sub-models will be integrated into a complete initial 3D model in subsequent steps.

[0040] First, a unified model coordinate origin is determined. The selection of this origin must balance modeling convenience and on-site positioning operability. Typically, the ground projection point of the lower left corner of the skid is used as the reference. The X-axis points along the length of the skid towards the front of the transport direction, the Y-axis points along the width of the skid towards the operating side, and the Z-axis is vertically upward. After the origin is determined, each discipline begins its modeling work. The first sub-model construction for the process discipline: Based on the process component configuration information, the piping component library and equipment model library are called in the 3D software. Following the connection relationships in the piping and instrumentation diagram, components such as pipes, valves, flanges, filters, and flow meters are arranged sequentially. The posture and pipe orientation of the equipment model are adjusted according to the equipment's external parameters. The spatial coordinates of all components are absolutely positioned based on the model coordinate origin, ensuring that the pipeline routing meets process requirements and the slope is set correctly. The second sub-model construction for the equipment discipline: Based on the equipment's external and installation parameters, the equipment model is placed at the specified coordinate position. The top elevation of the equipment foundation, the anchor bolt hole positions, and the interface relationship with the structural discipline are precisely set. For equipment subject to vibration or high temperatures, the space occupied by vibration damping pads or insulation layers must also be reflected in the model. The third sub-model for electrical engineering involves selecting cable tray components of corresponding sizes based on cable tray specifications, drawing the main and branch lines of the cable tray in 3D space according to cable laying path conditions, setting the installation height of the cable tray (usually using elevation positioning), and marking the bending radius at cable tray bends and the locations of cable entry and exit holes to ensure a safe distance between the cable tray routing and equipment and pipelines. The fourth sub-model for structural engineering involves establishing the steel structure's axis system in 3D software based on beam and column layout parameters, generating structural components such as main beams, secondary beams, columns, diagonal braces, platform plates, and railings. Based on the information provided by equipment and process engineering specialties, equipment foundation supports, pipe supports, lifting lugs, and transportation fixing points are reserved at appropriate locations. During the modeling process, the various specialties do not work completely independently but rather classify and identify model elements through preset naming rules and layer management. For example, pipelines in the process engineering field are named with "pipeline number", equipment in the equipment field is named with "tag number", cable trays in the electrical field are named with "cable tray number", and structural components are named with "component number" so that the professional category to which the collision point belongs can be quickly identified during subsequent collision analysis.

[0041] Furthermore, for skid-mounted equipment with a high degree of standardization, a parametric template library for each professional category is established in advance, such as a pipe layout template for a typical dehydration skid, a standard cable tray routing template, and a general steel structure frame template. During modeling, the templates can be directly called and key parameters can be modified, which greatly improves modeling efficiency. The setting of the model coordinate origin is flexibly adjusted according to the skid type. For example, for skids that need to be precisely connected to the external pipeline network, the origin is set at the center of the sealing surface of a key interface flange on the skid, which facilitates on-site alignment. The modeling accuracy of each professional sub-model is managed hierarchically according to the design stage. A simplified model (such as replacing equipment with a cuboid) is used in the preliminary design stage, and then replaced with a refined model in the detailed design stage. While generating the 3D sub-model, a list of model attributes for each professional category is generated simultaneously, such as an equipment list, a pipe material list, a cable tray length statistics table, and a steel structure weight statistics table.

[0042] Step A3: Integrate the 3D sub-models corresponding to each professional category to obtain the initial 3D model.

[0043] Specifically, the integration process first requires unifying the model reference baseline. Since all the 3D sub-models for each discipline have been built based on the same model coordinate origin, during integration, the sub-model files are directly loaded into the same 3D design software platform (such as PDMS, Revit, or Navisworks). Using the software's external referencing or model linking functions, all sub-models are spatially aligned according to a unified coordinate system. During loading, the consistency of the coordinate origins of each sub-model is checked. For cases where the origin has shifted due to modeling errors, coordinate correction must be performed before integration.

[0044] After the model is loaded, spatial connectivity verification of model elements is performed. This includes verifying the interface between the equipment model and the piping model, i.e., checking whether the coordinates of the equipment ports constructed by the equipment discipline match the coordinates of the piping ports constructed by the process discipline; verifying the connectivity between the equipment foundation and the structural platform, i.e., checking whether the equipment foundation elevation and anchor bolt positions set by the equipment discipline match the foundation supports and platform opening positions constructed by the structural discipline; and verifying the spatial relationship between cable trays and equipment / pipelines, i.e., checking whether the cable tray routing constructed by the electrical discipline conflicts with the piping layout of the process discipline or the equipment placement of the equipment discipline. Any connectivity deviations discovered during the verification process must be corrected immediately by the relevant disciplines to ensure the accuracy of the spatial relationships between the elements of each discipline after model integration.

[0045] In this embodiment of the application, the method further includes: monitoring the modeling progress of the three-dimensional sub-models of each professional category; when the modeling progress reaches a preset progress, acquiring the pipe opening orientation information and platform structure information; updating the three-dimensional sub-models whose modeling progress has reached the preset progress based on the pipe opening orientation information and platform structure information, to obtain the updated three-dimensional sub-models; and coordinating the adjustment of the three-dimensional sub-models of other related professional categories based on the updated three-dimensional sub-models, to obtain the coordinated adjusted three-dimensional sub-models.

[0046] Specifically, modeling progress refers to the proportion of work completed by each professional category in the construction of 3D sub-models, which is quantitatively evaluated by the completeness of model elements, the coverage of key interfaces, or the achievement of design depth; preset progress refers to the pre-set modeling stage nodes. When the modeling progress of a certain professional sub-model reaches the node, the information submission and collaborative adjustment process is triggered; pipe orientation information refers to the technical data of the spatial position, orientation, pipe diameter, flange specifications, and connection method of each process interface on the equipment model. It is the key information for model docking between process and equipment disciplines; platform structure information refers to the technical data of the layout, elevation, opening size, and support method of steel structure components such as operating platforms, stairs, and railings. It is the key information for structural disciplines to provide support conditions to process and equipment disciplines; updated 3D sub-model refers to the new version model formed by a certain discipline after receiving information from other disciplines and modifying, supplementing, or refining its own sub-model.

[0047] First, a unified modeling progress monitoring mechanism needs to be established at the project initiation. Based on the overall project plan, modeling milestones for this specialty should be defined, typically dividing the modeling progress into several key milestones (such as equipment placement milestones, main pipeline milestones, and refinement milestones), and recording the corresponding model completion thresholds (such as 30%, 60%, and 90%) for each milestone into the collaborative management platform. During the modeling process, the platform automatically tracks the modeling progress of each specialty's sub-models, updating the progress status in real time through methods such as counting the number of model elements, checking the coverage of key interfaces, or manual confirmation. When the modeling progress of a certain specialty's sub-model reaches a preset progress level (such as 60%), the data submission process is automatically triggered. This specialty needs to compile key data submission information based on the current modeling results. For example, when the process engineering modeling reaches 60%, the layout of the main equipment and main pipelines has been completed. At this time, it is necessary to provide the equipment and structural engineering professionals with information on the location of the pipe openings, including the accurate coordinates of the equipment pipe openings, flange specifications, sealing surface type, and the stress requirements of the pipelines on the equipment pipe openings. When the structural engineering modeling reaches 60%, the layout of the main beams, columns, and main platforms has been completed. At this time, it is necessary to provide the process engineering and equipment engineering professionals with information on the platform structure, including the platform elevation, staircase location, opening size, and support point coordinates.

[0048] Upon receiving the information provided, the relevant disciplines need to update their own sub-models. For example, the equipment discipline checks whether the pipe orientation information provided by the process discipline matches the pipe coordinates in the equipment model. If there is a discrepancy, the equipment posture is adjusted or the pipe position is modified. The process discipline adjusts the pipeline routing to avoid platform columns or uses platform beams as pipeline support points based on the platform structure information provided by the structural discipline. After the update is completed, each discipline generates an updated 3D sub-model.

[0049] Based on the updated 3D sub-model, collaborative adjustments are required for other related disciplines. This collaborative adjustment is not a one-way, passive modification, but rather a multi-disciplinary joint review process. For example, if the process engineering discipline modifies the pipeline route due to pipe orientation adjustments, the electrical engineering discipline must be notified to check if the pipeline route interferes with the cable trays. If interference occurs, the electrical engineering discipline must adjust the cable tray path accordingly. Similarly, if the structural engineering discipline modifies the beam and column layout due to equipment foundation adjustments, the equipment engineering discipline must be notified to re-verify whether the equipment installation space meets operation and maintenance requirements. Collaborative adjustments can be achieved through the "Model Change Notification" function in the collaborative platform. The system automatically identifies the changed model elements and pushes notifications to the responsible personnel of related disciplines. These disciplines then adaptively adjust their own models based on the changes, resulting in a collaboratively adjusted 3D sub-model.

[0050] Step S202: Perform collision analysis on the initial 3D model to obtain the first analysis result, and adjust the element arrangement in the initial 3D model according to the first analysis result until there are no collision points in the initial 3D model, and obtain the target 3D model.

[0051] Step S203: Divide the target 3D model into multiple skid units based on transportation constraints, and generate skid-mounted design results based on the skid units. The skid-mounted design results include at least one of the following: skid division information, skid interface information, and transportation fixed point layout information.

[0052] In this embodiment of the application, the transportation restrictions include the maximum permissible width, the maximum permissible height, and the single-axle load. The target 3D model is divided into multiple skid units based on transportation constraints, including: selecting process equipment according to process package parameters to obtain equipment selection results; determining the division boundary conditions of the skid units based on the equipment selection results, maximum allowable width, maximum allowable height and single-axis load; and dividing the target 3D model into multiple skid units according to the division boundary conditions.

[0053] In this application embodiment, transportation restrictions refer to the physical boundaries and load-bearing constraints that the skid unit must meet under transportation modes such as highway, railway, or sea. Among them, the maximum permissible width usually refers to no more than 3.0 meters for highway transportation (including over-limit permits), the maximum permissible height usually refers to no more than 4.5 meters including brackets, and the single axle load refers to the weight of the skid on each axle of the transport vehicle not exceeding the road and bridge limit (e.g., no more than 10 tons per axle on ordinary highways). In addition, it also includes road conditions such as bridge weight limits, tunnel clearance, and turning radius. The equipment selection results refer to the model, specifications, external dimensions, weight, and installation requirements of each piece of equipment determined after process calculation based on process package parameters (such as throughput, pressure, temperature, and media composition). It is the basic data for determining the size and weight of the skid. The boundary conditions refer to the set of constraints on which the complete process system is divided into multiple skid units. These include the upper limit of the external dimensions (length × width × height), the upper limit of the weight, functional independence requirements, the limit on the number of skid interfaces, and the center of gravity position requirements of each skid unit. They are the specific technical boundaries that guide the division of the skids.

[0054] First, process equipment is selected based on the process package parameters, determining the model, dimensions, weight, and installation requirements of each piece of equipment to form the equipment selection results. This process is not a simple listing of equipment, but rather an optimization selection considering the characteristics of skid-mounted systems. For example, compact equipment is prioritized, some functions are integrated into the same equipment housing to reduce the number of pieces of equipment, or vertical equipment is used instead of horizontal equipment to optimize space utilization. After completing the equipment selection, transportation restrictions are obtained, including maximum permissible width, maximum permissible height, single axle load, and on-site access road conditions (such as slope, turning radius, and road surface load-bearing capacity). These restrictions need to be carefully evaluated in conjunction with the specific transportation route, and a transportation feasibility analysis report should be prepared if necessary to clarify the maximum single skid size and weight boundaries and determine whether an oversized transport permit is required.

[0055] Based on the equipment selection results and transportation constraints, the boundary conditions for the skid unit division were determined. The determination of these boundary conditions must adhere to three core principles: First, the principle of functional integration, ensuring that each skid unit is an independent subsystem (such as a feed gas skid, dehydration skid, heavy hydrocarbon removal skid, LNG loading skid, and heavy hydrocarbon loading skid), guaranteeing that all equipment, piping, instrumentation, electrical systems, and structures are installed and commissioned within the skid, requiring only skid-to-skid connections for operation on-site; second, the principle of transportation priority, controlling the dimensions of all skid units within the permissible transportation range, typically set at no more than 15 meters in length, 2.95 meters in width, and 4.4 meters in height, to allow for safety margins to cope with bumps and deformation during transportation; and third, the principle of interface minimization, limiting inter-skid piping interfaces to no more than 6 and electrical signal interfaces to no more than 2 connectors, to reduce on-site connection difficulties and leakage risks.

[0056] After determining the boundary conditions, the target 3D model is divided into multiple skid units based on these conditions. This division process is completed in 3D design software. Using the target 3D model as a base, equipment, pipes, cable trays, and steel structures are spatially grouped within the model according to pre-defined boundary conditions. During division, the weight distribution of the equipment must be comprehensively considered to avoid instability during transportation or hoisting due to an off-center center of gravity in a single skid; on-site hoisting capacity must be considered, and for overweight skids, further disassembly or the addition of temporary supports may be necessary; the operability of the skid interface locations must be considered, ensuring that the interfaces are positioned at a height and orientation convenient for on-site workers; and the sequence of skids during transportation and on-site placement must be considered to avoid subsequent skids failing to be hoisted into place due to improper unloading sequence.

[0057] This embodiment provides a skid-mounted design method for process equipment. Figure 3 This is a flowchart of a skid-mounted design method for process equipment according to an embodiment of the present invention, such as... Figure 3 As shown, the process includes the following steps: Step S301: Establish an initial three-dimensional model of the process equipment using process package parameters and equipment conditions.

[0058] Step S302: Perform collision analysis on the initial 3D model to obtain the first analysis result, and adjust the element arrangement in the initial 3D model according to the first analysis result until there are no collision points in the initial 3D model, and obtain the target 3D model.

[0059] In this embodiment of the application, the first analysis result includes the collision location of at least one collision point, the collision type, and the professional category of the hit; Based on the results of the first analysis, the element arrangement in the initial 3D model is adjusted until there are no collision points within the initial 3D model, resulting in the target 3D model, including: Step B1: Based on the collision location, collision type, and the professional category of the collision, determine the adjustment strategy for each collision point. The adjustment strategy includes at least one of the following: pipeline spatial routing, cable tray laying path, equipment installation location, and steel structure platform layout.

[0060] Specifically, the first analysis result refers to the detection report generated after performing collision analysis on the initial 3D model. This report records all collision information in the model in a structured manner, including at least the spatial coordinates of each collision point, the collision type, and the relevant professional category. The collision location refers to the specific coordinates of the collision point in 3D space, which is associated with the specific model element where the collision occurred (such as a pipe, a beam, or a section of cable tray) to accurately locate the interference area. The collision type refers to the classification based on the nature and severity of the collision, typically including hard collisions (physical overlap between model elements, such as a pipe passing through a beam) and soft collisions (the spacing between model elements does not meet the preset safety distance, such as high temperature). Insufficient spacing between pipes and cable trays) and functional collisions (though there is no physical overlap, they affect operation and maintenance, such as a valve handwheel conflicting with the platform railing, making it inoperable); the professional category of the collision refers to the professional field (such as process engineering, equipment engineering, electrical engineering, structural engineering) to which the two or more model elements involved in the collision belong, used to clarify the responsible parties involved in the collision and the departments that need to coordinate adjustments; the adjustment strategy refers to the specific modification plan formulated for each collision point. This plan is determined comprehensively based on collision characteristics, design constraints, and optimization objectives, involving various technical means such as replanning the spatial routing of pipes, rerouting the cable tray laying path, fine-tuning the equipment installation position, and changing the layout of the steel structure platform.

[0061] After the collision analysis generates the first analysis results, the collision reports are first classified and screened: processing priorities are set according to collision type and impact: hard collisions have the highest priority because they directly cause physical overlap of model elements and must be resolved immediately; soft collisions are secondary, and whether adjustments are needed is determined based on the specific value of insufficient spacing and the strictness of safety requirements; functional collisions, although not involving physical interference, may affect operational safety or maintenance convenience and also need to be included in the rectification scope. For projects with a large number of collision points, they are processed in batches according to spatial areas (such as the first floor and second floor platforms of the skid) or professional categories (such as prioritizing process and structural collisions).

[0062] For each collision point, the spatial characteristics and surrounding environment of the collision location are first analyzed. Using the visualization function of the 3D model, the layout of the collision area is observed from multiple angles, identifying the available space around the colliding element, the arrangement of adjacent equipment, the location of fixed key interfaces, and whether there are other potential interference risks. Based on this, the principles for formulating adjustment strategies are determined by combining the collision type and the relevant professional category. When a collision occurs between a process pipeline and a structural beam, the priority of the adjustment strategy is usually as follows: prioritize adjusting the pipeline route (e.g., adding bends or adjusting the pipeline elevation), as pipelines have high path flexibility; if the pipeline cannot be rerouted due to process requirements (e.g., gravity flow pipelines or cryogenic pipelines requiring a specific slope), then consider adjusting the position of the structural beam (e.g., beam offset, using variable cross-section beams or secondary beams to replace the main beam); if neither is adjustable, consider opening holes in the beam and installing sleeves, but this requires structural strength verification. When a collision occurs between a cable tray and a high-temperature pipe, safety regulations require sufficient clearance between them. The adjustment strategy typically involves: first, adjusting the cable tray's routing or layering, moving the cable tray away from the high-temperature pipe; if the cable tray's path is limited, consider adding insulation to the high-temperature pipe or changing the thickness of the pipe's insulation material. When a collision occurs between equipment and a platform staircase, the adjustment strategy is: first, fine-tune the equipment's installation position (within the allowable offset range of the equipment's pipe opening); if this is not feasible, modify the shape of the platform opening or adjust the staircase's routing.

[0063] The process of determining adjustment strategies requires multi-disciplinary collaborative review. The heads of each relevant discipline jointly analyze the feasibility and scope of impact of the adjustment plan. For example, if the process engineering discipline adjusts the pipeline routing, it needs to assess whether this affects the pipeline stress analysis results, whether adding bends increases pressure loss, and whether additional supports are needed. If the structural engineering discipline adjusts the beam and column layout, it needs to recalculate the structural stress and notify the equipment engineering discipline to verify whether the equipment foundation is affected. If the electrical engineering discipline adjusts the cable tray path, it needs to verify whether the cable length is sufficient and whether the turning radius meets the specifications. The final determination of the adjustment strategy must achieve overall optimization while meeting the functional requirements of each discipline.

[0064] Step B2: Adjust the element arrangement at the corresponding collision position in the initial 3D model based on the adjustment strategy to obtain a candidate 3D model. Continue until the second analysis result obtained after collision analysis of the candidate 3D model is that there are no collision points, then the candidate 3D model is used as the target 3D model.

[0065] Specifically, the candidate 3D model refers to the intermediate version model formed after modifying the collision points in the initial 3D model based on the adjustment strategy. This model may have undergone one or more rounds of modification and has not yet been finally confirmed to be free of collision points. The second analysis result refers to the detection report generated after performing collision analysis on the candidate 3D model again, which is used to verify whether the adjustment strategy has effectively eliminated collision points and whether new collision points have been introduced.

[0066] Once the adjustment strategy for each collision point is determined, the adjustment operation begins in the 3D design software. For collision points involving a single discipline (such as collisions between process pipes), the model is directly modified according to the adjustment strategy. For collision points involving multiple disciplines (such as collisions between process pipes and structural beams), collaborative modification is performed. Typically, the discipline initiating the adjustment completes the modification first, and then related disciplines make adaptive adjustments based on the changes. During the modification process, the collaborative modification function of the 3D design software ensures that no version conflicts occur when multiple disciplines operate on the model simultaneously, and all modifications are recorded in the model's version history.

[0067] After completing one round of adjustments, the modified model is saved as a candidate 3D model. At this point, a second collision analysis needs to be performed on the candidate 3D model to generate a second analysis result. The parameter settings for the collision analysis should be consistent with the first analysis to ensure the comparability of the verification results. The second analysis result includes: all collision points have been eliminated, i.e., a collision-free state has been achieved; or, some of the original collision points have been eliminated, but some remain or new collision points have been introduced; or, although the original collision points have been eliminated, new collision points have been generated in other areas due to the adjustment operation. For the latter two cases, the adjustment strategy needs to be re-formulated and implemented based on the new collision information fed back from the second analysis result, forming a new round of iterative cycle.

[0068] The convergence speed of the iterative process depends on the complexity of the collision points and the effectiveness of the adjustment strategy. For projects with a large number of collision points and complex spatial layouts, multiple iterations are required to achieve a collision-free state. During the iteration process, a batch processing strategy is adopted, prioritizing hard collisions and collision points affecting the critical path. Soft collisions or collision points in non-critical areas can be processed in subsequent iterations. Simultaneously, a local verification mechanism is introduced. After all adjustments to a certain area or system are completed, an independent collision analysis is performed on that area to confirm the absence of collision points before conducting a full model analysis, thereby shortening the waiting time for each verification.

[0069] When the second analysis result of the candidate 3D model after collision analysis shows no collision points, the candidate 3D model is determined as the target 3D model. At this point, the target 3D model is finally confirmed, and a joint evaluation is performed on the model. The focus is on checking whether the key interfaces, operation channels, and maintenance space in the model meet the design requirements. After confirming that there are no omissions, the target 3D model is locked and used as the baseline version for subsequent design work.

[0070] Step S303: Divide the target 3D model into multiple skid units based on transportation constraints, and generate skid-mounted design results based on the skid units. The skid-mounted design results include at least one of the following: skid division information, skid interface information, and transportation fixed point layout information.

[0071] In this embodiment of the application, the transportation restrictions include the maximum permissible width, the maximum permissible height, and the single-axle load. The target 3D model is divided into multiple skid units based on transportation constraints, including: selecting process equipment according to process package parameters to obtain equipment selection results; determining the division boundary conditions of the skid units based on the equipment selection results, maximum allowable width, maximum allowable height and single-axis load; and dividing the target 3D model into multiple skid units according to the division boundary conditions.

[0072] Specifically, the selection process begins with optimization based on the characteristics of skid-mounted systems: process calculations are performed based on parameters such as throughput, feed gas composition, pressure, and temperature to determine the processing capacity of each process unit. On this basis, compact equipment is prioritized to save space, and some functions are integrated into the same housing to reduce the number of units and interfaces. For tall equipment such as towers, the feasibility of a horizontal layout to reduce skid height, or the use of segmented manufacturing and on-site assembly to meet transportation height restrictions, is assessed. Once the equipment selection is finalized, transportation constraints are simultaneously acquired. Based on the equipment selection results and transportation constraints, the boundary conditions for skid unit division are determined. When determining the boundary conditions, the weight distribution of the equipment is comprehensively considered to avoid instability during transportation or hoisting due to a single skid's center of gravity being off-center; on-site hoisting capacity is considered, and for overweight skids, further disassembly or the addition of temporary support structures is possible; the sequence of skids during transportation and on-site placement is also considered to avoid subsequent skids failing to be hoisted into place due to improper unloading sequence.

[0073] After the boundary conditions are determined, the target 3D model is divided into multiple skid units based on these conditions. This division process is completed in 3D design software. Using the target 3D model as a base, and according to pre-defined boundary conditions, equipment, pipes, cable trays, and steel structures are spatially grouped within the model. During division, the boundary lines, reference point coordinates, dimensions, total weight, and relative positional relationships between each skid unit must be clearly defined in the model. For pipes spanning skids, the interface locations and types must be indicated in the model; for cables spanning skids, the terminal locations and connector specifications must be indicated. After division, each skid unit requires independent weight calculation and center of gravity verification to ensure that the load on each axis does not exceed the single-axis load limit. If necessary, the equipment layout should be adjusted to optimize the center of gravity distribution.

[0074] In this embodiment of the application, after obtaining the target 3D model, as follows: Figure 4 As shown, the method also includes: Step S401: Obtain the installation temperature parameters and operating temperature parameters of the cryogenic pipeline.

[0075] Specifically, cryogenic pipelines refer to pipelines that transport media with temperatures below -20°C. In LNG skid-mounted equipment, this specifically refers to pipelines that transport liquefied natural gas (LNG, approximately -162°C). Installation temperature parameters refer to the ambient temperature at which the pipeline is manufactured and installed, usually taken as ambient temperature (e.g., 20°C), which serves as the initial reference temperature for pipeline stress analysis. At this temperature, the pipeline is in a free state and has not yet been subjected to thermal loads. Operating temperature parameters refer to the temperature of the medium transported by the pipeline under normal process operation conditions. For LNG systems, this is typically -162°C, while also considering extreme operating temperatures (such as the pre-cooling stage and the shutdown and restart stage). This parameter is a key input for determining the pipeline's cold contraction and calculating thermal stress.

[0076] First, the operating temperatures of each cryogenic pipeline are extracted from the process package parameters. For LNG liquefaction units, the operating temperature of the pipeline from the main heat exchanger to the LNG storage tank is generally -162℃. For mixed refrigerant pipelines, the operating temperature range is between -40℃ and -160℃, depending on the composition. Simultaneously, the installation temperature parameters are determined based on the local climate conditions and construction season. If construction is carried out in winter without temperature control measures, the installation temperature may be as low as -10℃ to 0℃. If prefabricated in a temperature-controlled workshop at the factory, the installation temperature can be set to 20℃. For critical cryogenic pipelines, the design temperature (usually taken as a safety margin of 10℃ to 20℃ below the operating temperature) and the test temperature (used for pressure and leakage tests) are obtained. After obtaining these parameters, they are entered into the operating condition definition module of the pipeline stress analysis software as the basic input for subsequent stress analysis. When the pipeline has different operating conditions (such as normal operating condition, pre-cooling operating condition, emergency shutdown operating condition), the temperature parameters corresponding to each operating condition should be obtained separately, and all operating conditions should be included in the analysis scope. For pipelines with temperature gradients (such as cold box inlet and outlet pipelines), the temperature distribution parameters along the pipeline axis should be obtained instead of a single temperature value.

[0077] Step S402: Analyze whether the pipe stress in the target three-dimensional model meets the preset stress conditions based on the installation temperature parameters and operating temperature parameters, and at the same time analyze whether the force on the equipment pipe in the target three-dimensional model meets the preset force conditions, to obtain the third analysis result.

[0078] Specifically, the preset stress condition refers to the requirement that the calculated stress of the pipeline under the combined loads of internal pressure, self-weight, thermal expansion, wind load, and earthquake must not exceed the allowable stress of the material at the corresponding temperature. For low-temperature pipelines, the variation of the allowable stress of the material at low temperatures and fatigue life requirements are considered. The preset stress condition refers to the requirement that the external pipeline load borne by the equipment inlet (such as the inlet and outlet pipes of pumps, heat exchangers, storage tanks, etc.) must not exceed the allowable value specified by the equipment manufacturer. Usually, the inlet load limit table is referred to, including the component limits of force and moment in each direction. The third analysis result refers to the comprehensive report generated after calculation by stress analysis software, including the maximum stress value of each pipe section and its ratio to the allowable stress, the force and moment values ​​of each equipment inlet and their ratio to the allowable values, the location and amount of the node with the largest displacement, and the conclusive judgment of whether the stress check has been passed.

[0079] The installation and operating temperature parameters, along with the pipeline geometry information (diameter, wall thickness, length, direction, support and hanger positions), material properties (elastic modulus, Poisson's ratio, coefficient of linear expansion, allowable stress), pressure parameters (design pressure, operating pressure), and external loads (pipeline weight, medium weight, insulation layer weight, wind load, seismic load) from the target 3D model, are input into a professional stress analysis software. A pipeline stress analysis model is established in the software, which is then linked to the 3D model to automatically extract the pipeline direction and support and hanger positions. The software performs finite element analysis based on the set working condition combinations (such as installation conditions, operating conditions, pressure test conditions, and accidental load conditions), calculating the comprehensive stress level of each pipe segment under primary stress (generated by continuous loads such as pressure and gravity), secondary stress (generated by displacement loads such as thermal expansion), and peak stress (generated by local structural discontinuities), and compares this level with preset stress conditions. Simultaneously, the forces (forces and moments) at each equipment inlet are extracted and compared with preset stress conditions. After the analysis is completed, a third analysis result is generated, which lists all pipe sections and equipment nozzles that exceed the allowable range in tabular form, and marks the specific values ​​and coordinates of the excess.

[0080] For cryogenic pipelines operating under alternating conditions (such as LNG pipelines with periodic filling and unloading), fatigue analysis is required to calculate whether the cumulative damage coefficient meets the design life requirements. For pipelines connected to rotating equipment (such as compressors and pumps), the vibration load and dynamic response at the equipment inlets should be additionally checked to avoid excessive equipment vibration caused by pipeline excitation. For combined operating conditions that require consideration of both cold contraction and seismic loads, load combination calculations should be performed according to standard requirements. If insufficient pipeline flexibility is found during the analysis, leading to excessive stress, the pipeline routing should be virtually adjusted in the model (such as by adding a π-shaped bend) before further analysis to provide a basis for setting flexible connections in subsequent steps.

[0081] Step S403: Based on the third analysis results, set sliding supports, guide supports, or flexible connections in the target three-dimensional model to obtain the optimized target three-dimensional model.

[0082] Specifically, a sliding support is a support structure that allows the pipeline to slide freely along the axial direction on the support. It is usually composed of a pipeline support and a polytetrafluoroethylene (PTFE) pad. It is used to release axial displacement and reduce thermal stress when the low-temperature pipeline contracts during cold. At the same time, it can bear the vertical load of the pipeline. A guide support is a support structure that restricts the pipeline to lateral displacement but allows axial displacement. It is used to ensure that the pipeline contracts in a predetermined direction and avoids pipeline deviation or interference with other components due to lateral instability. It is usually set in the middle of a long straight pipe section. A flexible connection is a flexible element or structure in the pipeline system that can absorb thermal displacement and reduce stress. It mainly includes metal bellows expansion joints (which use the elastic deformation of the bellows to absorb axial, lateral or angular displacement), π-shaped bends (which form natural compensation capacity through the geometric bending of the pipeline), and L-shaped bends. The optimized target 3D model is the final 3D model after the addition or adjustment of low-temperature stress control measures such as sliding supports, guide supports and flexible connections based on the stress check results of the third analysis, on the basis of the original target 3D model. This model satisfies both the spatial coordination requirements of no collision and the strength requirements of pipeline stress and equipment nozzle stress.

[0083] First, interpret the results of the third analysis to identify the locations of pipe sections with excessive stress or excessive pressure at the pipe ends. For pipe stress problems caused by excessive thermal stress, analyze the stress composition: if the axial thermal stress is too high, sliding supports are usually added to long straight pipe sections to ensure that the pipe can move freely axially during cold contraction. At the same time, PTFE pads are placed at the supports to reduce the coefficient of friction. If the direction of thermal expansion is uncontrollable due to the pipe's orientation, guide supports are added to constrain the lateral displacement of the pipe and guide the cold contraction along the preset direction. For excessive thermal stress caused by insufficient pipe flexibility, π-shaped bends or L-shaped bends can be set in stress concentration areas to increase system flexibility and absorb thermal displacement through the geometric bending of the pipe. For areas where space is limited and natural compensation bends cannot be set, metal bellows expansion joints can be used as flexible connections. The installation location, model, compensation amount, and fixed support location of the expansion joints are marked in the model. For situations where the stress on equipment pipe openings exceeds the limit, flexible connections (such as metal corrugated pipe expansion joints) should be installed on the pipes near the equipment openings, or the pipe routing should be adjusted to reduce the load on the openings. Simultaneously, spring supports or constant force supports should be installed at the equipment openings to balance the additional load from the pipe weight. All newly added or adjusted supports and flexible connections must be accurately modeled in the 3D model, with the support location coordinates, type, elevation, and connection method to the pipes and structure clearly marked. The model should then be re-imported into stress analysis software for verification, ensuring that the optimized model meets all stress and load requirements.

[0084] The installation of sliding supports should be coordinated with the pipe insulation layer. The thickness and installation gap of the PTFE pad should be marked in the model to ensure that the insulation layer is not compressed and damaged at low temperatures. For large-diameter low-temperature pipes, sliding supports should be equipped with limiting structures to prevent the pipe from sliding off the supports due to transportation vibration or earthquakes. The selection of flexible connections (such as corrugated pipe expansion joints) should consider fatigue life, and the design cycle number and installation pre-deformation requirements of the expansion joints should be marked in the model. For pipes with complex multi-directional displacement, universal expansion joints or spherical compensators should be set. The placement of supports should be coordinated with the structural engineering team. The location of the structural beams at the support anchoring points and the stress requirements should be marked in the model to ensure that the structure can withstand the load transmitted by the supports. After optimization, a pipe support layout drawing and a flexible connection detail table should be generated in the target 3D model as the basis for manufacturing and on-site installation.

[0085] In this embodiment of the application, after dividing the target 3D model into multiple skid units based on transportation constraints, as follows: Figure 5 As shown, the method also includes: Step S501: Based on the reference point of each skid unit, mark the position coordinates of the skid external interface in the target 3D model.

[0086] Specifically, the reference point of a skid unit refers to the spatial reference origin set for each skid unit. Usually, the ground projection point at the lower left corner of the skid is selected as the reference point. The X-axis is along the length of the skid (pointing to the front end in the transportation direction), the Y-axis is along the width of the skid (pointing to the operating side), and the Z-axis is vertically upward. This reference point is used to unify the coordinate reference of all model elements inside the skid, and it is also the positioning basis for the skid to connect with the external pipeline network when it is in place on site. The external interface refers to the process piping interface, instrument signal interface, and electrical power interface on the boundary of the skid unit that need to be connected with the external system (other skids, plant pipeline network, utility system). It is usually located at the edge of the skid for easy on-site connection.

[0087] First, identify the reference point for each skid unit. This reference point is uniformly set during the design phase and marked in the model, usually coinciding with the coordinate origin of the skid structure model. In the target 3D model, traverse all pipe and electrical terminals at the boundary of each skid unit to identify the external interfaces that need to be connected on-site. For process piping interfaces, pick the center point of the flange sealing surface at the pipe end in the model, and read the coordinate value of this point using the coordinate query function of the 3D software. Record the coordinate values ​​with the skid reference point as the reference system. For pipe interfaces with multiple orientations (e.g., horizontal interface, vertical downward interface), record their respective orientations and coordinates. For electrical interfaces, pick the coordinates of the center point of the mounting surface and record the orientation of the interface (e.g., outward, downward). After annotation, generate a visual interface identifier in the model, usually presented as a leader-lined annotation, pointing to the interface location. The annotation content includes the interface tag number and coordinate values.

[0088] Step S502: Obtain the interface definition information for each skid-mounted interface. The interface definition information includes at least one of the following: interface tag number, flange specification, sealing surface type, and medium flow direction.

[0089] Specifically, the interface tag number refers to the unique identifier corresponding to the Piping and Instrumentation Diagram (PID), usually composed of the system code, equipment code, and interface serial number. For example, "PG-101-01" indicates the No. 1 interface of the raw material air skid. This tag number is crucial for achieving traceability and association between design documents and on-site construction drawings. Flange specifications refer to the dimensions and pressure rating of the interface flange, including nominal diameter (e.g., DN80, DN150), pressure rating (e.g., Class 150, Class 300, PN40), and flange standard (e.g., ASME B16.5, HG / T 20592), ensuring that the dimensions and pressure-bearing capacity of the mating flanges match. Sealing face type refers to the structural type of the flange sealing face, including raised face (RF), flat face (FF), male and female face (MFM), tongue and groove face (TG), and ring joint face (RTJ), etc. Different sealing face types correspond to different gasket types and sealing mechanisms, and the sealing face types must be consistent when the flanges are mated. Medium flow direction refers to the flow direction of the process medium in the pipeline, marked in the form of an arrow.

[0090] For each skid-mounted interface with marked coordinates, extract the corresponding interface definition information from the process design documents. Interface tag numbers can be directly obtained from pipeline numbers or equipment interface numbers in the piping and instrumentation diagram, ensuring that each interface tag number is unique throughout the project. Flange specifications are obtained from the piping material table of the process engineering department, including nominal diameter, pressure rating, and applicable standards. For flanges of the same specification, the number and diameter of their matching bolt holes must also be confirmed. Sealing surface type is extracted from equipment port conditions or piping grade tables. For critical interfaces (such as LNG cryogenic pipelines), a ring joint (RTJ) is typically used to ensure sealing reliability. Medium flow direction is read from the piping and instrumentation diagram. For interfaces with the possibility of bidirectional flow (such as bypass pipelines), the bidirectional flow or applicable operating conditions must be clearly indicated in the interface definition information. All interface definition information is compiled into a preliminary interface definition table in list form and verified with the equipment and process engineering departments to ensure accuracy.

[0091] Step S503: Associate the interface definition information with the position coordinates of the corresponding external interface and label it onto the target 3D model to obtain the labeled target 3D model.

[0092] Specifically, in 3D design software (such as PDMS, Revit, and Navisworks), a 3D annotation object is created for each identified and defined skid-mounted interface. The type of annotation object can be selected according to the interface category. Process piping interfaces typically use circular or rectangular labels with leaders, while electrical interfaces use diamond or hexagonal labels for differentiation. The interface definition information is entered into the annotation object according to a unified format, typically including: the first line displays the interface tag number (e.g., "PG-101-01"), the second line displays the flange specifications and sealing surface type (e.g., "DN150 Class 300 RF"), and the third line displays the medium flow direction and coordinates (e.g., "Medium: Raw Gas →", "X=2.500, Y=1.200, Z=1.600"). The leader endpoints of the annotation object are precisely snapped to the interface model elements (e.g., the center point of the flange sealing surface or the center point of the mounting surface), ensuring a one-to-one correspondence between the annotation position and the actual interface spatial position. For complex interfaces, hyperlinks or attachments can be added to the annotations, linking to detailed interface construction drawings, gasket installation instructions, or bolt tightening torque requirements. After completing the annotations, the model should be visually checked to ensure all annotations are clearly visible and unobstructed, and the display level of the annotations should be set according to the view requirements (e.g., displaying in the top view and hiding in the isometric view). Finally, the annotated target 3D model is generated, which supports direct export of an interface list report, containing information such as the tag number, coordinates, specifications, sealing surface type, and media flow direction for each interface.

[0093] Step S504: Generate the corresponding external interface information based on the annotated target 3D model.

[0094] Specifically, the first step is to extract all the annotation data for the external interfaces from the annotated target 3D model. Then, the interface information is exported in batches according to the set filtering conditions (such as the type of the interface annotation object, tag number prefix, and the skid to which it belongs). The exported data fields include interface tag number, skid to which it belongs, coordinates (X, Y, Z), flange specifications, pressure rating, sealing surface type, medium flow direction, connection method (flange / welding / clamp), interface orientation (horizontal / vertical upward / vertical downward), and insulation / cold insulation requirements. For electrical and instrumentation interfaces, the exported data also includes interface type (power / control / instrumentation), voltage rating, current capacity, signal type, terminal block number, cable specifications, and protection level. After the data is exported, integrity and consistency checks are performed to ensure that the tag number of each interface corresponds one-to-one with the number in the Piping and Instrumentation Diagram (PID), the coordinates of each interface are consistent with the annotation position in the model, and the flange specifications of each interface match the specifications in the piping material list.

[0095] Based on the extracted data, a "Skid Interface List" is generated. This list is typically presented in tabular form, organized by skid unit, with each skid unit listing all its external interfaces. The list includes: interface tag number, interface name (e.g., "Raw Gas Inlet"), skid to which it belongs, connected object (target skid or plant piping network), interface coordinates (X / Y / Z), interface orientation, flange specifications, pressure rating, sealing surface type, gasket specifications, bolt specifications, medium name, medium flow direction, operating temperature, operating pressure, connection method, insulation requirements, and remarks. For electrical interfaces, the list also needs to include fields such as cable number, core count, shielding requirements, and wiring diagram number. This list must be jointly reviewed by the process, equipment, electrical, and instrumentation disciplines to ensure accuracy before being released as a formal design document.

[0096] In addition to the inventory list, generate an external interface layout drawing. This drawing is presented in two-dimensional format, typically based on the top, front, and side views of the skid unit. The drawing indicates the location of each external interface, using leader lines to label the interface tag number and flange specifications. The layout drawing should include the coordinates of the skid reference point, the outline of the main equipment, interface positioning dimensions (distances marked with reference to the reference point), and detailed node diagrams of the interfaces (such as flange pairing diagrams and gasket installation diagrams). For areas with dense interfaces, a magnified view can be generated, detailing the spacing between interfaces and installation space requirements.

[0097] For projects delivered digitally, an interface data package is generated, including a 3D view of the interface (an isometric view of the interface area can be extracted from the 3D model), an interface QR code label (the interface information is encoded into a QR code, printed, and affixed near the skid interface; the complete interface information can be obtained by scanning on-site), and an interface installation instruction manual (including bolt tightening torque, gasket installation requirements, alignment tolerances, etc.). All generated information is linked to the annotated target 3D model, and the interface information is updated synchronously when the model changes.

[0098] This embodiment also provides a skid-mounted design apparatus for process equipment, which is used to implement the above embodiments and preferred embodiments; details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0099] This embodiment provides a skid-mounted design device for process equipment, such as... Figure 6 As shown, it includes: Module 61 is used to create an initial three-dimensional model of the process equipment using process package parameters and equipment conditions. Analysis module 62 is used to perform collision analysis on the initial three-dimensional model, obtain the first analysis result, and adjust the element arrangement in the initial three-dimensional model according to the first analysis result until there are no collision points in the initial three-dimensional model, and obtain the target three-dimensional model. The generation module 63 is used to divide the target 3D model into multiple skid units based on transportation constraints, and generate skid-mounted design results based on the skid units. The skid-mounted design results include at least one of the following: skid division information, skid interface information, and transportation fixed point layout information.

[0100] In an optional embodiment of this application, module 61 is specifically used to determine the modeling parameters of each professional category based on process package parameters and equipment conditions, and to obtain a pre-configured model coordinate origin. The professional category includes at least one of process engineering, equipment engineering, electrical engineering, and structural engineering. Based on the modeling parameters and model coordinate origin of each professional category, a three-dimensional sub-model corresponding to each professional category is generated. The three-dimensional sub-models corresponding to each professional category are integrated to obtain an initial three-dimensional model.

[0101] In one optional embodiment of this application, the modeling parameters for the process engineering include process component configuration information and equipment shape parameters; the modeling parameters for the equipment engineering include equipment shape parameters and equipment installation parameters; the modeling parameters for the electrical engineering include cable tray specifications and cable laying path conditions; and the modeling parameters for the structural engineering include beam and column layout parameters. The generation module 63 is specifically used to generate a first sub-model corresponding to the process discipline based on the process component configuration information, equipment shape parameters, and model coordinate origin; and / or, to generate a second sub-model corresponding to the equipment discipline based on the equipment shape parameters, equipment installation parameters, and model coordinate origin; and / or, to generate a third sub-model corresponding to the electrical discipline based on the cable tray specification information, cable laying path conditions, and model coordinate origin; and / or, to generate a fourth sub-model corresponding to the structural discipline based on the beam and column layout parameters and model coordinate origin.

[0102] In an optional embodiment of this application, the device further includes: a monitoring module, used to monitor the modeling progress of the three-dimensional sub-models of various professional categories; when the modeling progress reaches a preset progress, acquiring the pipe opening orientation information and platform structure information; updating the three-dimensional sub-models whose modeling progress has reached the preset progress based on the pipe opening orientation information and platform structure information, to obtain updated three-dimensional sub-models; and coordinating the adjustment of the three-dimensional sub-models of other related professional categories based on the updated three-dimensional sub-models, to obtain coordinated adjusted three-dimensional sub-models.

[0103] In one optional implementation of this application, the first analysis result includes the collision location of at least one collision point, the collision type, and the category of the hit. Analysis module 62 is specifically used to determine the adjustment strategy for each collision point based on the collision location, collision type, and the professional category of the hit. The adjustment strategy includes at least one of the following: pipeline spatial orientation, cable tray laying path, equipment installation location, and steel structure platform layout. Based on the adjustment strategy, the element layout of the corresponding collision location in the initial 3D model is adjusted to obtain a candidate 3D model. The candidate 3D model is used as the target 3D model when the second analysis result obtained after collision analysis of the candidate 3D model is that there are no collision points.

[0104] In one optional embodiment of this application, the transport restrictions include maximum permissible width, maximum permissible height, and single-axle load capacity; The generation module 63 is used to select process equipment according to process package parameters and obtain equipment selection results; based on the equipment selection results, maximum allowable width, maximum allowable height and single-axis load, it determines the partitioning boundary conditions of the skid unit; and divides the target three-dimensional model into multiple skid units according to the partitioning boundary conditions.

[0105] In an optional embodiment of this application, the device further includes: an optimization module, used to acquire the installation temperature parameters and operating temperature parameters of the cryogenic pipeline; analyze whether the pipeline stress in the target three-dimensional model meets the preset stress conditions based on the installation temperature parameters and operating temperature parameters, and simultaneously analyze whether the force on the equipment nozzle in the target three-dimensional model meets the preset stress conditions, to obtain a third analysis result; based on the third analysis result, set a sliding support, a guide support, or a flexible connection in the target three-dimensional model to obtain an optimized target three-dimensional model.

[0106] In an optional embodiment of this application, the apparatus further includes: a labeling module, used to label the position coordinates of the skid external interface in the target three-dimensional model based on the reference point of each skid unit; to obtain the interface definition information of each skid external interface, wherein the interface definition information includes at least one of the interface tag number, flange specification, sealing surface type, and medium flow direction; to associate the interface definition information with the position coordinates of the corresponding skid external interface and label it to the target three-dimensional model to obtain the labeled target three-dimensional model; and to generate the corresponding skid external interface information based on the labeled target three-dimensional model.

[0107] Please see Figure 7 , Figure 7 This is a schematic diagram of the structure of a computer device provided in an optional embodiment of the present invention, such as... Figure 7As shown, the computer device includes one or more processors 10, memory 20, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components communicate with each other via different buses and can be mounted on a common motherboard or otherwise installed as needed. The processors can process instructions executed within the computer device, including instructions stored in or on memory to display graphical information of a GUI on external input / output devices (such as display devices coupled to the interfaces). In some alternative implementations, multiple processors and / or multiple buses can be used with multiple memories and multiple memory modules, if desired. Similarly, multiple computer devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system).

[0108] Processor 10 may be a central processing unit, a network processor, or a combination thereof. Processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The programmable logic device may be a complex programmable logic device (CAMP), a field-programmable gate array (FPGA), a general-purpose array logic (GPA), or any combination thereof.

[0109] The memory 20 stores instructions executable by at least one processor 10 to cause at least one processor 10 to perform the method shown in the above embodiments.

[0110] The memory 20 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the computer device as shown by a landing page for an app. Furthermore, the memory 20 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory 20 may optionally include memory remotely located relative to the processor 10, which can be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0111] The memory 20 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0112] The computer device also includes a communication interface 30 for communicating with other devices or communication networks.

[0113] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0114] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A skid-mounted design method for process equipment, characterized in that, The method includes: An initial three-dimensional model of the process equipment is established using process package parameters and equipment conditions. Collision analysis is performed on the initial three-dimensional model to obtain a first analysis result. Based on the first analysis result, the element arrangement in the initial three-dimensional model is adjusted until there are no collision points in the initial three-dimensional model, thus obtaining the target three-dimensional model. Based on transportation constraints, the target 3D model is divided into multiple skid units, and a skid-mounted design result is generated based on the skid units. The skid-mounted design result includes at least one of the following: skid division information, skid interface information, and transportation fixed point layout information.

2. The method according to claim 1, characterized in that, The process of establishing an initial three-dimensional model of the process equipment using process package parameters and equipment conditions includes: The modeling parameters for each professional category are determined based on the process package parameters and the equipment conditions, and the pre-configured model coordinate origin is obtained. The professional category includes at least one of process engineering, equipment engineering, electrical engineering, and structural engineering. Based on the modeling parameters of each professional category and the origin of the model coordinates, generate a 3D sub-model corresponding to each professional category; The three-dimensional sub-models corresponding to each of the aforementioned professional categories are integrated to obtain the initial three-dimensional model.

3. The method according to claim 2, characterized in that, The modeling parameters for the process discipline include process component configuration information and equipment shape parameters; the modeling parameters for the equipment discipline include equipment shape parameters and equipment installation parameters; the modeling parameters for the electrical discipline include cable tray specifications and cable laying path conditions; and the modeling parameters for the structural discipline include beam and column layout parameters. The process of generating 3D sub-models corresponding to each of the aforementioned professional categories based on the modeling parameters of each category and the origin of the model coordinates includes: Based on the process component configuration information, the equipment shape parameters, and the model coordinate origin, a first sub-model corresponding to the process discipline is generated; and / or, based on the equipment shape parameters, the equipment installation parameters, and the model coordinate origin, a second sub-model corresponding to the equipment discipline is generated; and / or, based on the cable tray specification information, the cable laying path conditions, and the model coordinate origin, a third sub-model corresponding to the electrical discipline is generated; and / or, based on the beam and column layout parameters and the model coordinate origin, a fourth sub-model corresponding to the structural discipline is generated.

4. The method according to claim 2, characterized in that, The method further includes: Monitor the modeling progress of the 3D sub-models for each of the aforementioned professional categories; When the modeling progress reaches the preset progress, obtain the pipe port orientation information and platform structure information; Based on the orifice orientation information and the platform structure information, the 3D sub-model whose modeling progress has reached the preset progress is updated to obtain the updated 3D sub-model. Based on the updated 3D sub-model, the 3D sub-models of other related professional categories are adjusted collaboratively to obtain the collaboratively adjusted 3D sub-model.

5. The method according to claim 1, characterized in that, The first analysis results include the collision location, collision type, and professional category of at least one collision point; The step of adjusting the element arrangement in the initial 3D model based on the first analysis result until there are no collision points in the initial 3D model, thereby obtaining the target 3D model, includes: Based on the collision location, the collision type, and the professional category of the hit, an adjustment strategy is determined for each collision point, wherein the adjustment strategy includes at least one of the following: pipeline spatial routing, cable tray laying path, equipment installation location, and steel structure platform layout. Based on the adjustment strategy, the element arrangement at the corresponding collision position in the initial 3D model is adjusted to obtain a candidate 3D model. The second analysis result obtained after the candidate 3D model undergoes collision analysis is that there are no collision points. Then, the candidate 3D model is used as the target 3D model.

6. The method according to claim 1, characterized in that, The transport restrictions include maximum permissible width, maximum permissible height, and single-axle load capacity; The method of dividing the target 3D model into multiple skid units based on transportation constraints includes: Based on the process package parameters, process equipment is selected to obtain equipment selection results; Based on the equipment selection results, the maximum allowable width, the maximum allowable height, and the single-axis load, the boundary conditions for dividing the skid unit are determined; The target 3D model is divided into multiple pry bar units according to the boundary conditions.

7. The method according to claim 1, characterized in that, After obtaining the target 3D model, the method further includes: Obtain the installation temperature parameters and operating temperature parameters of the cryogenic pipeline; Based on the installation temperature parameters and the operating temperature parameters, analyze whether the pipe stress in the target three-dimensional model meets the preset stress conditions, and at the same time analyze whether the force on the equipment pipe opening in the target three-dimensional model meets the preset force conditions, to obtain the third analysis result; Based on the third analysis result, a sliding support, a guide support, or a flexible connection is set in the target three-dimensional model to obtain an optimized target three-dimensional model.

8. The method according to claim 1, characterized in that, After dividing the target 3D model into multiple skid units based on transportation constraints, the method further includes: Based on the reference point of each skid unit, mark the position coordinates of the skid external interface in the target 3D model; Obtain the interface definition information for each of the skid external interfaces, wherein the interface definition information includes at least one of the following: interface tag number, flange specification, sealing surface type, and medium flow direction; The interface definition information and the position coordinates of the corresponding external interface are associated and annotated to the target 3D model to obtain the annotated target 3D model; Generate the corresponding external interface information based on the labeled target 3D model.

9. A skid-mounted design device for process equipment, characterized in that, The device includes: The module is used to create an initial 3D model of the process equipment using process package parameters and equipment conditions. The analysis module is used to perform collision analysis on the initial three-dimensional model, obtain a first analysis result, and adjust the element arrangement in the initial three-dimensional model according to the first analysis result until there are no collision points in the initial three-dimensional model, thereby obtaining the target three-dimensional model. The generation module is used to divide the target 3D model into multiple skid units based on transportation constraints, and generate skid-mounted design results based on the skid units. The skid-mounted design results include at least one of skid division information, skid interface information, and transportation fixed point layout information.

10. A computer device, characterized in that, include: A memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, the processor executing the computer instructions to perform the method of any one of claims 1 to 8.

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