CN117150620A - A rapid modeling and collision detection method for professional pipeline supports and hangers in power generation technology - Google Patents

Abstract

The invention discloses a rapid modeling and collision detection method for a pipeline support and hanger in a power generation process, which belongs to the field of digital design of power plants and comprises the steps of pipeline arrangement and modeling, pipeline stress calculation, support and hanger data generation, support and hanger design and modeling, judging collision between a pipeline and a support and hanger, modifying the support and hanger, naming the support and hanger and the like; generating support and hanger data refers to intelligently analyzing calculation results generated by GLIF pipeline stress analysis, and automatically reading pipeline information as a basis of support and hanger design; the collision of the pipeline and the support hanging frame is judged by carrying out intelligent algorithm analysis and comprehensive calculation on the parameters of the root parts, the connecting pieces, the inside of the pipe parts and the connection parts of the support hanging frame and the pipeline of different models, and judging whether the support hanging frame collides with the pipeline or not, and the support hanging frame is not collided, named and collided and modified. According to the invention, space calculation and rule comparison can be performed through an automatic algorithm, so that the waste of time and manpower caused by collision detection of the artificial space is relieved, and the design quality and efficiency are improved.

Description

A rapid modeling and collision detection method for professional pipeline supports and hangers in power generation technology

Technical field

The invention relates to the field of digital design of power plants, in particular to a rapid modeling and collision detection method for professional pipeline supports and hangers in power generation technology.

Background technique

Pipelines are an indispensable part of process workshops in power, petrochemical, light industry, metallurgy, machinery and other industries, and are directly related to the economic and safe operation of the factory. Pipe supports and hangers are an important part of the pipeline system. They bear pipeline loads, limit pipeline stress or displacement, and control pipeline vibration.

The design of pipeline supports and hangers is a very tedious but important task. In thermal power plant engineering design, the workload of pipeline support and hanger design accounts for 30 to 60% of the workload of pipeline construction drawing design; in the CAD system of nuclear power plant engineering design In the standard library, drawings of various supports and hangers account for 50% to 60%; and there are a large number of process pipelines, especially in the factory design of thermal pipelines. The design of pipe supports and hangers often becomes the bottleneck of engineering design, restricting the design progress.

Currently, for the power generation technology major, pipeline and equipment modeling are all implemented using PDMS. However, due to tool limitations, the modeling of real supports and hangers is cumbersome and inefficient. It is difficult to realize real supports and hangers for the entire plant pipeline in three dimensions. Frame modeling. However, collision inspection and installation of supports and hangers are important factors to improve design quality for civil engineering, chemistry and other majors.

Therefore, it is necessary to develop a rapid modeling and collision detection method for professional pipeline supports and hangers in power generation technology.

Contents of the invention

The technical problem to be solved by the present invention is to provide a rapid modeling and collision detection method for professional pipeline supports and hangers in power generation technology. The calculation results generated by GLIF pipeline stress analysis are intelligently analyzed through the tools in the PDMS three-dimensional design platform, and the calculation results are automatically read. Based on information such as pipeline diameter, temperature, thrust, and moment, designers can quickly complete the selection of pipe racks, booms, roots, booms and other components of the pipeline support and hanger, as well as the rapid modeling of the three-dimensional model of the support and hanger. After the modeling is completed, the space collision is intelligently detected according to the collision rules and the detection results are displayed in real time. The operation interface is simple, which alleviates the resulting waste of time and manpower and improves the design quality and efficiency.

In order to solve the above technical problems, the technical solution adopted by the present invention is:

A rapid modeling and collision detection method for professional pipeline supports and hangers in power generation technology, including the following steps:

S1, pipeline layout and modeling: Select pipeline specifications according to relevant parameters of the design requirements, arrange the pipeline direction according to the pipeline system flow chart and the positioning of connected equipment, and conduct pipeline layout modeling in the PDMS three-dimensional design platform;

S2, pipeline stress calculation: According to the layout of the pipeline and the positions of nearby beams and columns, select the support and lifting points on the pipeline, then calculate the pipeline stress, adjust the position of the support and suspension points while calculating, and determine the position of the support and suspension points after passing the stress calculation;

S3, generate support and hanger data: intelligently analyze the calculation results generated by GLIF pipeline stress analysis, and automatically read the pipeline diameter, temperature, thrust, and moment information as the basis for the next step of support and hanger design;

S4, support and hanger design and modeling: extract the three-dimensional space position and direction of the rooting points on the beams and columns, and extract the calculation data of the pipeline support and hanging points, select the overall structural type of the support and hanger, and then perform intelligent analysis of each part Model selection includes three parts: root, connector, and pipe, and then automatically generates a three-dimensional model of the support and hanger at the support and suspension points based on the part model and connection relationship;

S5, determine the collision between the pipeline and the support and hanger: judge whether the support and hanger collides with the pipeline through intelligent algorithm analysis and comprehensive calculation of various parameters at the roots, connectors, inside the pipe and the connection with the pipeline of different types of supports and hangers. , if a collision occurs, proceed to step S6, if no collision occurs, proceed to S7;

S6, modify the support and hanger: modify the installation angle, elevation or positioning of the support and hanger, avoid and adjust the collision object, and re-execute the steps from S2 to S5;

S7, naming of supports and hangers: The PDMS three-dimensional design platform has a built-in uniqueness verification module for the naming of pipe supports and hangers. The user inputs the name of the pipe supports and hangers for automatic verification to prevent renaming.

A further improvement of the technical solution of the present invention is that in S1, the relevant parameters include design pressure, design temperature, flow rate and material.

A further improvement of the technical solution of the present invention is that in S2, when considering the supporting point conditions of the support and hanger, the following factors need to be paid attention to:

(1) When the supporting and hanging points of the support and hanger are set on the structure, no auxiliary steel structure is provided, but it is necessary to ensure that the support and hanger is positioned as aligned as possible with the center lines of the beams and columns;

(2) It is necessary to prevent the supports and hangers and their root auxiliary steel structures from colliding with adjacent structures, heating and ventilation pipes, cable bridge pipes and equipment; special attention should be paid to preventing collisions with the walls, windows and scissor braces of the structures, and the roots of the supports and hangers. collisions between adjacent pipes and equipment;

(3) In places where pipelines are densely arranged, when pipeline supports and hangers collide with each other, a combined support and hanger should be installed.

A further improvement of the technical solution of the present invention is that in S3, it specifically includes: according to the "GLIF Output File Rule Table", reading the GLIF output file into the PDMS three-dimensional design platform and reading the corresponding pipes and structural loads in the table. Parameters and stored in variables;

(1) Pipe selection

Automatically select the structural type and specifications of the pipe according to the type of support and hanger, the location and shape of the support and lifting point pipeline, the number of support and lifting points, pipe specifications, materials, medium temperature, and support and hanger load information;

(2)Functional parts selection

According to the type of support and hanger, the number of support and hanging points, the load of the support and hanger, the position and displacement of the support and lifting points, the structural type of the pipe or functional parts, and the type, specification and location information of the load-bearing structure, determine the stress type of the root structure and the relationship with the civil components. Relative relationship, type and specification of root rod steel;

(3) Connector selection

According to the type of support and hanger, the load of the support and hanger and the type, connection size and positioning size information of the pipe, functional parts and roots, select the required types, sizes, quantities and positioning of various connectors and fasteners. and connection requirements;

(4) Selection and positioning of embedded parts

Select the model and specifications of the embedded parts according to the root structure type, specifications and dimensions, spatial position and load of the rooting point, and determine their positioning dimensions.

A further improvement of the technical solution of the present invention is that in S4, the overall structural type is single hanging or double hanging.

A further improvement of the technical solution of the present invention is that in S5, the pipeline includes a pipeline insulation layer.

A further improvement of the technical solution of the present invention is that the thickness h ₂ of the pipeline insulation layer is calculated based on the "DLT 5072-2007 Thermal Power Plant Insulation Paint Design Regulations" and a comparison table corresponding to different pipeline thicknesses for pipelines of different materials is designed. According to the pipeline temperature and pipe material, retrieve the corresponding pipe thickness range from the comparison table and determine the thickness of the pipe insulation layer.

A further improvement of the technical solution of the present invention is that in S5, determining whether the support and hanger collides with the pipeline includes the collision between the support and hanger and the pipeline between the same pipe system and different pipe systems, the collision between the support and hanger and the support and hanger. collision between.

Due to the adoption of the above technical solutions, the technical progress achieved by the present invention is:

1. The present invention realizes automatic selection of supports and hangers by integrating commonly used support and hanger types and support and hanger parameters built into the PDMS three-dimensional design platform, manually selecting the three-dimensional space coordinates of the rooting point and extracting the three-dimensional model information of the rooting point. , and automatically obtain the inner diameter D1, wall thickness h1 and insulation layer thickness h2 of the pipeline, and automatically perform collision checks on the supports and hangers to ensure that the supports and hangers do not collide with the pipes.

2. The present invention intelligently analyzes the calculation results generated by GLIF pipeline stress analysis through tools in the PDMS three-dimensional design platform, and automatically reads information such as pipeline diameter, temperature, thrust, and torque. Based on the above information, designers can quickly complete pipeline support. Selection of pipe frames, booms, roots, booms and other components of the hanger and rapid modeling of the three-dimensional model of the support and hanger. After the modeling is completed, spatial collision detection is intelligently performed according to the collision rules and the detection results are displayed in real time. This result The simple operation interface alleviates the waste of time and manpower and improves design quality and efficiency.

3. The present invention uses the support and hanger rapid arrangement module built into the PDMS three-dimensional design platform to ensure that the generated support and hanger fits the pipeline. The user only needs to input the rotation angle and movement distance of the support and hanger to quickly realize the support and hanger. layout.

4. The present invention uses the support and hanger rapid modification module built into the PDMS three-dimensional design platform. When the design requirements change, the support and hanger modification can be quickly realized.

5. The present invention uses the support and hanger element naming and naming uniqueness verification module built into the PDMS three-dimensional design platform. The user inputs the support and hanger name for verification and prevents renaming.

Description of the drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without exerting any creative effort;

Figure 1 is a flow chart of the present invention;

Figure 2 is a three-dimensional schematic diagram of the single pole support and hanger created in the embodiment of the present invention;

Figure 3 is a three-dimensional schematic diagram of the double-rod support and hanger created in the embodiment of the present invention;

Figure 4 is a partial schematic diagram of the GLIF output file pipeline parameters in the embodiment of the present invention;

FIG. 5 is a schematic diagram of the load part of the GLIF output file structure in the embodiment of the present invention.

Detailed ways

It should be noted that the terms "comprising" and "having" and any variations thereof in the description and claims of the present invention and the above-mentioned drawings are intended to cover non-exclusive inclusion, for example, a series of steps or units. The processes, methods, systems, products or devices are not necessarily limited to those steps or units expressly listed, but may include other steps or units not expressly listed or inherent to the processes, methods, products or devices.

The present invention will be further described in detail below in conjunction with the accompanying drawings and examples:

As shown in Figure 1, a method for rapid modeling and collision detection of professional pipeline supports and hangers in power generation technology includes intelligent reading of GLIF parameters, rapid three-dimensional support and hanger modeling, collision detection and unique naming between supports and hangers; The above-mentioned collision detection uses algorithms to perform space calculations and collision rule comparisons, which alleviates the waste of time and manpower caused by manual space detection collisions and improves design quality and efficiency.

The 3D engine of the PDMS 3D design platform has or has been developed through secondary development to have the following functions, including:

S1, pipeline layout and modeling: select pipeline specifications according to design requirements (including design pressure, design temperature, flow rate, material and other parameters), arrange the pipeline direction according to the pipeline system flow chart and the positioning of connected equipment, and create the pipeline layout in PDMS three-dimensional Pipeline layout and modeling in the design platform;

S2. Pipeline stress calculation: According to the layout of the pipeline and the positions of nearby beams and columns, select the support and lifting points on the pipeline, then calculate the pipeline stress, adjust the position of the support and lifting points while calculating, and determine the position of the support and lifting points after passing the stress calculation;

When considering the supporting and lifting point conditions of the support and hanger, the following factors should be paid attention to:

1) When the supporting and hanging points of the support and hanger are set on the structure, there is no auxiliary steel structure, but it is necessary to ensure that the support and hanger is positioned as aligned as possible with the center lines of the beams and columns.

2) It is necessary to prevent the supports and hangers and their root auxiliary steel structures from colliding with adjacent structures, heating and ventilation pipes, cable bridge pipes and equipment. Particular attention should be paid to preventing collisions with structural walls, windows, and scissor supports; and collisions with adjacent pipes and equipment at the roots of the support hangers.

3) In places where pipelines are densely arranged (such as turbine bases or pipeline groups within the scope of other equipment bodies), when the pipeline supports and hangers collide with each other, the installation of combined supports and hangers may be considered.

S3, generate support and hanger data: intelligently analyze the calculation results generated by GLIF pipeline stress analysis, and automatically read the pipeline diameter, temperature, thrust, moment and other information as the basis for the next step of support and hanger design;

S4, design and modeling of supports and hangers: extract the three-dimensional spatial position and direction of the rooting points on beams and columns, extract calculation data of pipeline support points, and select the overall structural type of supports and hangers, including single or double hanging Hang and wait (as shown in Figures 2 and 3), and then perform intelligent selection of each part, including the root, connector, and pipe parts, and then automatically generate supports and hangers at the support and lifting points based on the part model and connection relationship. Frame three-dimensional model;

S5. Determine the collision between the pipeline and the support and hanger: judge the collision between the support and hanger and the pipeline (including the pipeline) through intelligent algorithm analysis and comprehensive calculation of various parameters of the roots, connectors, inside the pipe and the connection with the pipeline of different types of support and hanger. insulation layer), including collisions between supports and hangers and pipes between the same piping system and different piping systems, and collisions between supports and hangers. If a collision occurs, proceed to step S6; if not If a collision occurs, proceed to S7;

S6. Modify the supports and hangers: Modify the installation angle, elevation or positioning of the supports and hangers, avoid and adjust the collision objects, and re-execute the steps from S2 to S5;

S7. Naming of supports and hangers: The PDMS three-dimensional design platform has a built-in uniqueness verification module for the naming of pipe supports and hangers. The user inputs the name of the pipe supports and hangers for automatic verification to prevent renaming.

Specifically, P ₁ is used as the center point of the pipe frame on the pipe where the pipe clamp part of the support hanger is located (as shown in Figures 2 and 3), and the pipe inner diameter D ₁ , wall thickness h ₁ and insulation layer thickness h ₂ are automatically obtained , Calculation principle of pipe insulation layer thickness h ₂ : Based on the "DLT 5072-2007 Thermal Power Plant Insulation Paint Design Regulations", a comparison table of different material pipes corresponding to different pipe wall thicknesses is designed. Part of the data in the comparison table is as shown in Table 1 display, according to the temperature and pipe material of the pipe, retrieve the corresponding pipe thickness range from the comparison table and determine the thickness of the pipe insulation layer. The pipes are layered according to the pipe outer diameter, wall thickness and insulation layer thickness, and the inner diameter of the pipe clamp is recorded as H ₃ , the pipe is divided into three layers. The outer diameter of the first layer is H ₄ , which is equal to the sum of the inner diameter of the pipe D ₁ and the wall thickness h ₁ H ₄ =D ₁ +h ₁ . The second layer is the thickness of the pipe insulation layer h ₂ . The thickness of the third layer of pipe clamp is h ₅ , and the distance H from the center of the pipe to the outer layer of the pipe clamp is H=h ₄ +h ₂ +h ₅ . When H>=h3, there is no collision. If H<h3, there is a collision.

If the thickness h ₂ of the second layer of pipe insulation layer is 0, then H=h ₄ +h ₅ . Only the first and third layers participate in the collision check of the 3D model. If there is a collision between the pipe clamp and the pipe, recalculate and continue with steps S2-S5. If there is no collision between the pipe clamp and the pipe, continue with S7;

Table 1 Part of the comparison table for different pipe wall thicknesses corresponding to pipes made of different materials

This invention reads the calculation results generated by the intelligent analysis GLIF pipeline stress analysis, and automatically reads the pipeline outer diameter, temperature, stress, moment and other information as the basis for the next step of support and hanger design.

Table 2 GLIF output file rule table

As shown in Figures 4 and 5, according to Table 2 "GLIF Output File Rules Table", read the GLIF output file into the PDMS three-dimensional design platform, read the corresponding pipe and structural load parameters in the table, and save them in variables middle.

(1) Pipe selection

The structural type and specifications of the pipe are automatically selected based on information such as the type of support and hanger, the location and shape of the pipe at support and lifting points, the number of support and lifting points, pipe specifications, materials, medium temperature, support and hanger load, etc.

(2)Functional parts selection

According to the type of support and hanger, the number of support and hanging points, the load of the support and hanger, the position and displacement of the support and lifting points, the structural type of the pipe or functional parts, and the type, specification and location of the load-bearing structure, determine the stress type of the root structure, and determine the force type of the root structure, which is related to the civil structure components. The relative relationship, the type and specification of the root rod steel, etc.

(3) Connector selection

According to the type of support and hanger, the load of the support and hanger and the type, specification, connection size and positioning size of the pipe, functional parts, roots and other information, select the required types, sizes, quantities of connectors and fasteners, Positioning and connection requirements.

(4) Selection and positioning of embedded parts

Select the model and specifications of the embedded parts according to the root structure type, specifications and dimensions, spatial position and the load of the rooting point (tension, shear force and bending moment, etc.), and determine its positioning size.

In summary, the rapid modeling and collision detection method of professional pipeline supports and hangers in power generation technology provided by the present invention ensures that the supports and hangers will not collide with the pipelines; through the rapid layout module of supports and hangers built into the PDMS three-dimensional design platform, automatic Realize the three-dimensional creation and arrangement of supports and hangers to ensure that the generated supports and hangers always fit the pipeline. Through the support and hanger quick modification module built into the PDMS 3D design platform, when the design requirements change, the supports and hangers can be quickly modified; Through the support and hanger element naming and naming uniqueness verification module built into the PDMS three-dimensional design platform, users can input the support and hanger name for verification to prevent renaming.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention, but not to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be equivalently replaced; and these modifications or substitutions do not deviate from the essence of the corresponding technical solutions from the technical solutions of the embodiments of the present invention. scope.

Claims (8)

1. A rapid modeling and collision detection method for professional pipeline supports and hangers in power generation technology, which is characterized by: including the following steps: S1, pipeline layout and modeling: Select pipeline specifications according to relevant parameters of the design requirements, arrange the pipeline direction according to the pipeline system flow chart and the positioning of connected equipment, and conduct pipeline layout modeling in the PDMS three-dimensional design platform; S2, pipeline stress calculation: According to the layout of the pipeline and the positions of nearby beams and columns, select the support and lifting points on the pipeline, then calculate the pipeline stress, adjust the position of the support and suspension points while calculating, and determine the position of the support and suspension points after passing the stress calculation; S3, generate support and hanger data: intelligently analyze the calculation results generated by GLIF pipeline stress analysis, and automatically read the pipeline diameter, temperature, thrust, and moment information as the basis for the next step of support and hanger design; S4, support and hanger design and modeling: extract the three-dimensional space position and direction of the rooting points on the beams and columns, and extract the calculation data of the pipeline support and hanging points, select the overall structural type of the support and hanger, and then perform intelligent analysis of each part Model selection includes three parts: root, connector, and pipe, and then automatically generates a three-dimensional model of the support and hanger at the support and suspension points based on the part model and connection relationship; S5, determine the collision between the pipeline and the support and hanger: judge whether the support and hanger collides with the pipeline through intelligent algorithm analysis and comprehensive calculation of various parameters at the roots, connectors, inside the pipe and the connection with the pipeline of different types of supports and hangers. , if a collision occurs, proceed to step S6, if no collision occurs, proceed to S7; S6, modify the support and hanger: modify the installation angle, elevation or positioning of the support and hanger, avoid and adjust the collision object, and re-execute the steps from S2 to S5; S7, naming of supports and hangers: The PDMS three-dimensional design platform has a built-in uniqueness verification module for the naming of pipe supports and hangers. The user inputs the name of the pipe supports and hangers for automatic verification to prevent renaming. 2. A method for rapid modeling and collision detection of professional pipeline supports and hangers in power generation technology according to claim 1, characterized in that: in S1, the relevant parameters include design pressure, design temperature, flow rate and material. 3. A method for rapid modeling and collision detection of professional pipeline supports and hangers in power generation technology according to claim 1, characterized in that: in S2, when considering the supporting and hanging point conditions of the supports and hangers, the following points should be noted: factors: (1) When the support and hanger points are set on a structure, no auxiliary steel structure is required, but it is necessary to ensure that the support and hanger are positioned as aligned with the center lines of beams and columns as possible; (2) It is necessary to prevent the supports and hangers and their root auxiliary steel structures from colliding with adjacent structures, heating and ventilation pipes, cable bridge pipes and equipment; special attention should be paid to preventing collisions with the walls, windows and scissor braces of the structures, and the roots of the supports and hangers. collisions between adjacent pipes and equipment; (3) In places where pipelines are densely arranged, when pipe supports and hangers collide with each other, set up combined supports and hangers. 4. A method for rapid modeling and collision detection of professional pipeline supports and hangers in power generation technology according to claim 1, characterized in that: in S3, it specifically includes: according to the "GLIF Output File Rules Table", the GLIF The output file is read into the PDMS three-dimensional design platform and the corresponding pipe and structural load parameters in the table are read and saved in variables; (1) Pipe selection Automatically select the structural type and specifications of the pipe according to the type of support and hanger, the location and shape of the support and lifting point pipeline, the number of support and lifting points, pipe specifications, materials, medium temperature and support and hanger load information; (2) Function selection According to the type of support and hanger, the number of support and hanging points, the load of the support and hanger, the position and displacement of the support and lifting points, the structural type of the pipe or functional parts, and the type, specification and location information of the load-bearing structure, determine the stress type of the root structure and the relationship with the civil components. Relative relationship, type and specification of root rod steel; (3) Connector selection According to the type of support and hanger, the load of the support and hanger and the type, connection size and positioning size information of the pipe, functional parts and roots, select the required types, sizes, quantities and positioning of various connectors and fasteners. and connection requirements; (4) Selection and positioning of embedded parts Select the model and specifications of the embedded parts based on the root structure type, specifications, dimensions, spatial location and load of the rooting point, and determine the positioning dimensions of the embedded parts. 5. A method for rapid modeling and collision detection of professional pipeline supports and hangers in power generation technology according to claim 1, characterized in that: in S4, the overall structure type is a single hanging or a double hanging. 6. A method for rapid modeling and collision detection of professional pipeline supports and hangers in power generation technology according to claim 1, characterized in that: in S5, the pipeline includes a pipeline insulation layer. 7. A method for rapid modeling and collision detection of professional pipeline supports and hangers in power generation technology according to claim 6, characterized in that: the thickness _h of the pipeline insulation layer is calculated based on "DLT 5072-2007 Thermal Power Plant Insulation""Paint Design Regulations" is based on the design of a comparison table for different pipe thicknesses corresponding to different material pipes. According to the temperature of the pipe and the pipe material, the corresponding pipe thickness range is retrieved from the comparison table and the thickness of the pipe insulation layer is determined. 8. A method for rapid modeling and collision detection of professional pipeline supports and hangers in power generation technology according to claim 1, characterized in that: in S5, determining whether the supports and hangers collide with the pipeline includes the same pipe system and different pipes. Collisions between supports and hangers and pipes, and collisions between supports and hangers.