CN117150620A - Rapid modeling and collision detection method for special pipeline supporting and hanging frame of power generation process - Google Patents
Rapid modeling and collision detection method for special pipeline supporting and hanging frame of power generation process Download PDFInfo
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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
Technical Field
The invention relates to the field of digital design of power plants, in particular to a method for quickly modeling and collision detection of a professional pipeline support and hanger in a power generation process.
Background
The pipeline is an indispensable component part in process workshops of industries such as power, petrochemical industry, light industry, metallurgy, machinery and the like, and directly relates to the economical and safe operation of a factory. Pipe hangers are an important component of a pipe system that bear pipe loads, limit pipe stresses or displacements, and control pipe vibration.
The design of the pipeline support and hanger is very complicated and important work, and in the engineering design of the thermal power plant, the workload of the pipeline support and hanger design accounts for 30-60% of the design workload of the pipeline construction diagram; in a CAD system standard gallery of the engineering design of the nuclear power station, various support and hanger drawings account for 50% -60%; in the factory design of a large number of process pipelines, particularly heating pipelines, the pipeline support and hanger design often becomes a bottleneck of engineering design, and limits the design progress.
At present, modeling of pipelines and equipment is realized by PDMS for the power generation technology, and modeling of a real support and hanger is generated due to the limitation of tools, so that the operation is troublesome, the efficiency is low, and modeling of the real support and hanger of the whole plant pipeline is difficult to realize in three dimensions. But collision inspection and installation of the support and hanger are important factors for improving design quality for civil engineering, chemistry and other professions.
Therefore, it is necessary to develop a method for rapid modeling and collision detection of a pipeline support and hanger specialized in the power generation process.
Disclosure of Invention
The technical problem to be solved by the invention is to provide a rapid modeling and collision detection method for a special pipeline support and hanger of a power generation process, which is characterized in that a tool in a PDMS three-dimensional design platform is used for intelligently analyzing a calculation result generated by GLIF pipeline stress analysis, and automatically reading information such as pipeline diameter, temperature, thrust, moment and the like, according to the information, a designer can rapidly complete the selection of components such as a pipe rack, a hanger rod, a root part, a hanger arm and the like of the pipeline support and hanger and the rapid modeling of a support and hanger three-dimensional model, the space collision detection is intelligently carried out according to collision rules after the modeling is completed, the detection result is displayed in real time, the operation interface is simple, the time and manpower waste caused by the calculation result is relieved, and the design quality and efficiency are improved.
In order to solve the technical problems, the invention adopts the following technical scheme:
a method for fast modeling and collision detection of a special pipeline support and hanger in a power generation process comprises the following steps:
s1, pipeline arrangement and modeling: selecting pipeline specifications according to related parameters of design requirements, arranging pipeline trend according to a pipeline system flow chart and positioning of connected equipment, and modeling pipeline arrangement in a PDMS three-dimensional design platform;
s2, calculating pipeline stress: according to the trend arrangement of the pipeline and the positions of the adjacent beams and columns, taking a supporting point on the pipeline, then calculating the stress of the pipeline, adjusting the position of the supporting point while calculating the stress, and determining the position of the supporting point after the stress calculation is passed;
s3, generating support and hanger data: intelligently analyzing a calculation result generated by GLIF pipeline stress analysis, and automatically reading pipeline pipe diameter, temperature, thrust and moment information to be used as a basis for next step of support and hanger design;
s4, designing and modeling a support and a hanger: extracting the three-dimensional space position and direction of a rooting point on a beam and a column, extracting the calculation data of a pipeline supporting point, selecting the whole structural type of a supporting and hanging frame, then performing intelligent type selection of each part, including three parts of a root part, a connecting piece and a pipe part, and then automatically generating a supporting and hanging frame three-dimensional model at the supporting and hanging point according to the model and the connection relation of the parts;
s5, judging collision between the pipeline and the support and hanger: judging whether the support hanger collides with the pipeline or not 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 hanger and the pipeline of different models, if so, carrying out the step S6, and if not, carrying out the step S7;
s6, modifying the support and hanger: modifying the installation angle, elevation or positioning of the support and hanger, avoiding and adjusting the collision object, and carrying out the S2 to S5 steps again;
s7, naming a support and a hanger: and a unique pipeline support and hanger naming verification module is arranged in the PDMS three-dimensional design platform, and a user inputs the pipeline support and hanger names to automatically verify, so that renaming is prevented.
The technical scheme of the invention is further improved as follows: in S1, the relevant parameters include design pressure, design temperature, flow rate, and material.
The technical scheme of the invention is further improved as follows: in S2, when considering the conditions of the support point of the support hanger, the following factors should be noted:
(1) When the supporting and hanging points of the supporting and hanging frame are arranged on the structure, an auxiliary steel structure is not arranged, but the supporting and hanging frame needs to be ensured to be positioned and aligned with the central lines of the beams and the columns as much as possible;
(2) The auxiliary steel structure at the root of the support hanger is required to prevent collision with adjacent structures, heating ventilation pipes, cable bridge pipes and equipment; especially, the collision between the support and the adjacent pipelines and equipment at the root of the support and the hanger is prevented by taking care of preventing the support and the hanger from colliding with the walls, windows and scissor supports of the structures;
(3) In the place where the pipelines are densely arranged, when the pipeline supporting and hanging frames collide with the pipelines, the combined supporting and hanging frames are arranged.
The technical scheme of the invention is further improved as follows: in S3, specifically includes: according to the GLIF output file rule table, reading the GLIF output file to parameters of corresponding pipeline and structural load in a read table of the PDMS three-dimensional design platform, and storing the parameters in variables;
(1) Tube section selection
According to the type of the support hanger, the position and shape of the support hanging point pipeline, the number of the support hanging points, the pipeline specification, the material, the medium temperature and the support hanger load information, the structural type and specification of the pipeline part are automatically selected;
(2) Function selection
Determining the root structure stress type, the relative relation with civil engineering members, the type and the specification of the root member section steel according to the type of the support hanging frame, the number of the support hanging frames, the load of the support hanging frame, the position and the displacement of the support hanging points, the structural type of the pipe part or the functional part, and the bearing structural type, specification and position information;
(3) Connector selection
According to the type of the support and hanger, the load of the support and hanger, the type of the pipe part, the functional part and the root, the specification connection size and the positioning size information, selecting various connecting parts and fastening parts, the specification size, the number, the positioning and the connection requirements;
(4) Built-in fitting selection and positioning
And selecting the model and specification of the embedded part according to the structural type, the specification and size of the root, the space position and the load of the rooting point, and determining the positioning size of the embedded part.
The technical scheme of the invention is further improved as follows: in S4, the integral structure is single-suspended or double-suspended.
The technical scheme of the invention is further improved as follows: in S5, the pipe includes a pipe insulation.
The technical scheme of the invention is further improved as follows: thickness h of the pipeline heat-insulating layer 2 Calculating a comparison table of different material pipelines corresponding to different pipeline thicknesses according to DLT 5072-2007 thermal power plant thermal insulation paint design rules, and searching the corresponding pipeline thickness range from the comparison table according to the pipeline temperature and pipeline materials and determining the pipeline insulation layer thickness.
The technical scheme of the invention is further improved as follows: in S5, it is determined whether or not the hanger collides with the pipe including a collision between the hanger and the pipe between the same piping and different piping, a collision between the hanger and the hanger.
By adopting the technical scheme, the invention has the following technical progress:
1. according to the invention, the automatic selection of the support and hanger is realized through integrating the commonly used support and hanger type and support and hanger parameters in the PDMS three-dimensional design platform, the three-dimensional space coordinates of the rooting points are manually selected, the three-dimensional model information of the rooting points is extracted, the inner diameter D1, the wall thickness h1 and the thickness h2 of the heat insulation layer of the pipeline are automatically obtained, the support and hanger is automatically subjected to collision inspection, and the support and hanger is ensured not to collide with the pipeline.
2. According to the invention, a tool in the PDMS three-dimensional design platform is used for intelligently analyzing a calculation result generated by GLIF pipeline stress analysis, and automatically reading the information such as pipeline diameter, temperature, thrust, moment and the like, according to the information, a designer can quickly complete the selection of components such as a pipe frame, a suspender, a root part and a suspension arm of a pipeline support and a three-dimensional model of the support and the suspension arm, and the quick modeling of the support and the suspension arm three-dimensional model is realized, after the modeling is completed, the space collision detection is intelligently carried out according to a collision rule, and the detection result is displayed in real time.
3. According to the quick arranging module for the support and hanger built in the PDMS three-dimensional design platform, the generated support and hanger is guaranteed to be attached to the pipeline, and a user can quickly arrange the support and hanger only by inputting the rotation angle and the moving distance of the support and hanger.
4. According to the quick support and hanger modification module, the support and hanger quick modification module is arranged in the PDMS three-dimensional design platform, and when the design requirement is changed, the support and hanger can be quickly modified.
5. According to the invention, through the naming of the support and hanger element and the naming uniqueness verification module which is built in the PDMS three-dimensional design platform, a user inputs the naming of the support and hanger for verification, and renaming is prevented.
Drawings
For a clearer description of embodiments of the invention or of the solutions of the prior art, the drawings that are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are some embodiments of the invention, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art;
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a three-dimensional schematic of a single-pole hanger in accordance with an embodiment of the present invention;
FIG. 3 is a three-dimensional schematic of a dual-pole hanger in accordance with an embodiment of the present invention;
FIG. 4 is a schematic diagram of a GLIF output file pipeline parameter portion in accordance with an embodiment of the present invention;
fig. 5 is a schematic diagram of a load part of the GLIF output file structure in the embodiment of the invention.
Detailed Description
It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and in the foregoing figures, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.
The invention is described in further detail below with reference to the attached drawings and examples:
as shown in FIG. 1, the method for quickly modeling and detecting the collision of the pipeline support and the hanger in the power generation technology comprises the steps of intelligently reading GLIF parameters, quickly modeling the three-dimensional support and hanger, and detecting the collision of the support and the hanger with the pipeline, wherein the name is unique; the collision detection is used for carrying out space calculation and collision rule comparison through an algorithm, so that the waste of time and manpower caused by the detection of the collision of the artificial space is relieved, and the design quality and efficiency are improved.
The three-dimensional engine of the PDMS three-dimensional design platform has the following functions or has been subjected to secondary development, and the three-dimensional engine comprises:
s1, pipeline arrangement and modeling: selecting pipeline specifications according to design requirements (including parameters of design pressure, design temperature, flow, materials and the like), arranging pipeline trend according to a pipeline system flow chart and the positioning of connected equipment, arranging the pipeline in a PDMS three-dimensional design platform, and modeling;
s2, calculating pipeline stress: according to the trend arrangement of the pipeline and the positions of the adjacent beams and columns, taking a supporting point on the pipeline, then calculating the stress of the pipeline, adjusting the position of the supporting point while calculating the stress, and determining the position of the supporting point after the stress calculation is passed;
in considering the conditions of the support point of the support hanger, the following factors should be noted:
1) When the support hanging point of the support hanging frame is arranged on a structure, an auxiliary steel structure is not arranged, but the support hanging frame needs to be ensured to be positioned and aligned with the center line of the beam and the column as much as possible.
2) The auxiliary steel structure of the support hanger and the root thereof needs to be prevented from colliding with adjacent structures, heating ventilation pipes, cable bridge pipes, equipment and the like. Especially, care is taken to prevent collision with the building wall, window and scissor struts; and the root of the support and the hanger collide with the adjacent pipeline and equipment.
3) In places where the pipes are densely arranged (such as pipe groups in the range of a turbine base or other equipment bodies), when the pipe support hangers collide with the pipes, the combination support hangers can be considered.
S3, generating support and hanger data: the calculation result generated by GLIF pipeline stress analysis is intelligently analyzed, and information such as pipeline diameter, temperature, thrust, moment and the like is automatically read to serve as a basis for the design of a next step of supporting and hanging frame;
s4, designing and modeling a support and a hanger: extracting the three-dimensional space position and direction of the rooting point position on the beam and the column, extracting the calculation data of the pipeline supporting point, selecting the whole structure type of the supporting and hanging frame, including single hanging or double hanging (as shown in figures 2 and 3), then performing intelligent selection of each part, including three parts of root, connecting piece and pipe part, and then automatically generating a supporting and hanging frame three-dimensional model at the supporting and hanging point according to the model and the connection relation of the parts;
s5, judging collision between the pipeline and the support and hanger: judging whether the support hanging frame collides with the pipeline (comprising a pipeline heat preservation layer) or not by carrying out intelligent algorithm analysis and comprehensive calculation on various 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 types, wherein the collision comprises the collision between the support hanging frame and the pipeline between the same pipe system and different pipe systems, and the collision between the support hanging frame and the support hanging frame, and if the collision occurs, carrying out step S6; if no collision occurs, S7 is performed;
s6, modifying the support and hanger: modifying the installation angle, elevation or positioning of the support and hanger, avoiding and adjusting the collision object, and carrying out the S2 to S5 steps again;
s7, naming the support and hanger: and a unique pipeline support and hanger naming verification module is arranged in the PDMS three-dimensional design platform, and a user inputs the pipeline support and hanger names to automatically verify, so that renaming is prevented.
Specifically, by P 1 Is the pipe support center point of the pipe clamp part of the support and hanging frame on the pipeline, (shown in figures 2 and 3) and automatically obtains the inner diameter D of the pipeline 1 Wall thickness h 1 And thickness h of heat-insulating layer 2 Thickness h of pipeline heat insulation layer 2 The calculation principle is as follows: a comparison table of pipelines of different materials corresponding to different pipeline wall thicknesses is designed according to DLT 5072-2007 thermal power plant thermal insulation paint design rules, partial data in the comparison table are shown in table 1, according to the temperature of the pipeline and pipeline materials,retrieving the corresponding thickness range of the pipeline from the comparison table, determining the thickness of the heat insulation layer of the pipeline, layering the pipeline according to the outer diameter, the wall thickness and the thickness of the heat insulation layer of the pipeline, and marking the inner diameter of the pipe clamp as H 3 The pipeline is divided into three layers, and the outer diameter H of the pipeline of the first layer pipeline 4 Equal to the inner diameter D of the pipeline 1 And wall thickness h 1 Sum H 4 ＝D 1 +h 1 The second layer is the thickness h of the heat-insulating layer of the pipeline 2 Thickness h of third layer pipe clamp 5 Distance H from center of pipe to outer layer of pipe clamp, h=h 4 +h 2 +h 5 When H>No collision occurs when =h3, if H<And h3, collision occurs.
If the thickness h of the second layer pipeline heat preservation layer 2 0, then h=h 4 +h 5 . Only the first layer and the third layer participate in the collision detection of the three-dimensional model, if the pipe clamp collides with the pipeline, recalculating is carried out, the steps S2-S5 are continued, and if the pipe clamp does not collide with the pipeline, the step S7 is continued;
table 1 content of the comparison table portion of different material pipes corresponding to different pipe wall thicknesses
According to the invention, the calculation result generated by intelligent analysis of GLIF pipeline stress analysis is read, and the information such as the outer diameter, temperature, stress, moment and the like of the pipeline is automatically read, so that the calculation result is used as the basis for the design of the next support and hanger.
TABLE 2GLIF output File rule Table
As shown in fig. 4 and 5, according to table 2, GLIF output file rule table, GLIF output files are read to parameters of corresponding pipeline and structural load in the read table in the PDMS three-dimensional design platform, and are stored in variables.
(1) Tube section selection
And automatically selecting the structural type and specification of the pipe part according to the information such as the type of the support hanging frame, the position shape of the support hanging point pipeline, the number of the support hanging points, the specification of the pipeline, the material, the medium temperature, the support hanging frame load and the like.
(2) Function selection
And determining the stress type of the root structure, the relative relation between the root structure and civil engineering members, the type and specification of the root member section steel and the like according to the type of the support hanging frame, the number of the support hanging frames, the load of the support hanging frame, the position and displacement of the support hanging points, the structural type, specification and position of the pipe part or the functional member and other information.
(3) Connector selection
And selecting various connecting pieces and fastening pieces according to the type of the support and hanger, the load of the support and hanger, the type of the pipe part, the functional piece, the root part, the specification connecting size, the positioning size and other information, and the type, the specification size, the number, the positioning and the connecting requirements of the fastening pieces.
(4) Built-in fitting selection and positioning
And selecting the model and specification of the embedded part according to the structural type, the specification and size of the root, the space position and the load (tensile force, shearing force, bending moment and the like) of the rooting point, and determining the positioning size of the embedded part.
In conclusion, the rapid modeling and collision detection method for the special pipeline support and hanger for the power generation process ensures that the support and hanger does not collide with the pipeline; the quick arranging module of the support and hanger built in the PDMS three-dimensional design platform can automatically realize the three-dimensional creation and arrangement of the support and hanger, ensure that the generated support and hanger is always attached to the pipeline, and quickly realize the modification of the support and hanger after the design requirement is changed through the quick modifying module of the support and hanger built in the PDMS three-dimensional design platform; through a support and hanger element naming and naming uniqueness verification module built in the PDMS three-dimensional design platform, a user inputs a support and hanger naming to verify, and renaming is prevented.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the invention.
Claims (8)
1. A method for fast modeling and collision detection of a special pipeline support and hanger in a power generation process is characterized by comprising the following steps of: the method comprises the following steps:
s1, pipeline arrangement and modeling: selecting pipeline specifications according to related parameters of design requirements, arranging pipeline trend according to a pipeline system flow chart and positioning of connected equipment, and modeling pipeline arrangement in a PDMS three-dimensional design platform;
s2, calculating pipeline stress: according to the trend arrangement of the pipeline and the positions of the adjacent beams and columns, taking a supporting point on the pipeline, then calculating the stress of the pipeline, adjusting the position of the supporting point while calculating the stress, and determining the position of the supporting point after the stress calculation is passed;
s3, generating support and hanger data: intelligently analyzing a calculation result generated by GLIF pipeline stress analysis, and automatically reading pipeline pipe diameter, temperature, thrust and moment information to be used as a basis for next step of support and hanger design;
s4, designing and modeling a support and a hanger: extracting the three-dimensional space position and direction of a rooting point on a beam and a column, extracting the calculation data of a pipeline supporting point, selecting the whole structural type of a supporting and hanging frame, then performing intelligent type selection of each part, including three parts of a root part, a connecting piece and a pipe part, and then automatically generating a supporting and hanging frame three-dimensional model at the supporting and hanging point according to the model and the connection relation of the parts;
s5, judging collision between the pipeline and the support and hanger: judging whether the support hanger collides with the pipeline or not 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 hanger and the pipeline of different models, if so, carrying out the step S6, and if not, carrying out the step S7;
s6, modifying the support and hanger: modifying the installation angle, elevation or positioning of the support and hanger, avoiding and adjusting the collision object, and carrying out the S2 to S5 steps again;
s7, naming a support and a hanger: and a unique pipeline support and hanger naming verification module is arranged in the PDMS three-dimensional design platform, and a user inputs the pipeline support and hanger names to automatically verify, so that renaming is prevented.
2. The method for quickly modeling and detecting collision of the professional pipeline support and hanger for the power generation process according to claim 1, which is characterized in that: in S1, the relevant parameters include design pressure, design temperature, flow rate, and material.
3. The method for quickly modeling and detecting collision of the professional pipeline support and hanger for the power generation process according to claim 1, which is characterized in that: in S2, when considering the conditions of the support point of the support hanger, the following factors should be noted:
(1) When the supporting and hanging points of the supporting and hanging frame are arranged on the structure, an auxiliary steel structure is not arranged, but the supporting and hanging frame needs to be ensured to be positioned and aligned with the central lines of the beams and the columns as much as possible;
(2) The auxiliary steel structure at the root of the support hanger is required to prevent collision with adjacent structures, heating ventilation pipes, cable bridge pipes and equipment; especially, the collision between the support and the adjacent pipelines and equipment at the root of the support and the hanger is prevented by taking care of preventing the support and the hanger from colliding with the walls, windows and scissor supports of the structures;
(3) In the place where the pipelines are densely arranged, when the pipeline supporting and hanging frames collide with the pipelines, the combined supporting and hanging frames are arranged.
4. The method for quickly modeling and detecting collision of the professional pipeline support and hanger for the power generation process according to claim 1, which is characterized in that: in S3, specifically includes: according to the GLIF output file rule table, reading the GLIF output file to parameters of corresponding pipeline and structural load in a read table of the PDMS three-dimensional design platform, and storing the parameters in variables;
(1) Tube section selection
According to the type of the support hanger, the position and shape of the support hanging point pipeline, the number of the support hanging points, the pipeline specification, the material, the medium temperature and the support hanger load information, automatically selecting the structural type and specification of the pipeline part;
(2) Function selection
Determining the root structure stress type, the relative relation with civil engineering members, the type and the specification of the root member section steel according to the type of the support hanging frame, the number of the support hanging frames, the load of the support hanging frame, the position and the displacement of the support hanging points, the structural type of the pipe part or the functional part, and the bearing structural type, specification and position information;
(3) Connector selection
According to the type of the support and hanger, the load of the support and hanger, the type of the pipe part, the functional part and the root, the specification connection size and the positioning size information, selecting various connecting parts and fastening parts, the specification size, the number, the positioning and the connection requirements;
(4) Built-in fitting selection and positioning
And selecting the model and specification of the embedded part according to the structural type, the specification and size of the root, the space position and the load of the rooting point, and determining the positioning size of the embedded part.
5. The method for quickly modeling and detecting collision of the professional pipeline support and hanger for the power generation process according to claim 1, which is characterized in that: in S4, the integral structure is single-suspended or double-suspended.
6. The method for quickly modeling and detecting collision of the professional pipeline support and hanger for the power generation process according to claim 1, which is characterized in that: in S5, the pipe includes a pipe insulation.
7. The method for quickly modeling and detecting collision of the professional pipeline support and hanger for the power generation process according to claim 6 is characterized in that: the pipeline heat insulation layerThickness h of (2) 2 Calculating a comparison table of different material pipelines corresponding to different pipeline thicknesses according to DLT 5072-2007 thermal power plant thermal insulation paint design rules, and searching the corresponding pipeline thickness range from the comparison table according to the pipeline temperature and pipeline materials and determining the pipeline insulation layer thickness.
8. The method for quickly modeling and detecting collision of the professional pipeline support and hanger for the power generation process according to claim 1, which is characterized in that: in S5, it is determined whether or not the hanger collides with the pipe including a collision between the hanger and the pipe between the same piping and different piping, a collision between the hanger and the hanger.
Priority Applications (1)
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| CN117421941B (en) * | 2023-12-19 | 2024-04-26 | 中冶南方工程技术有限公司 | Element selection method, device, equipment and storage medium applied to metallurgical field |
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