Design Optimization of Coal Plant Construction Equipment Pipeline Based on BIM Technology

doi:10.21203/rs.3.rs-2217825/v1

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Design Optimization of Coal Plant Construction Equipment Pipeline Based on BIM Technology

https://doi.org/10.21203/rs.3.rs-2217825/v1

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The coal plant is a project with large concrete volume and complex structure. There are various mechanical equipment inside it, and there are many conflicts in the pipeline.In order to improve the construction efficiency and quality of industrial buildings such as coal plant, and avoid technical problems such as collision between building structures and various equipment pipelines or omission of reserved holes, BIM technology is applied to the whole process design and construction of coal plant.The construction of actual projects is guided by such technical methods as model building, visual analysis of building interior space, collision detection and optimization in equipment pipeline design, which not only greatly improves the project quality, improves the construction efficiency, saves construction costs, but also better helps the rapid integration of industrialization and informatization of the coal industry.

Physical sciences/Engineering

Physical sciences/Engineering/Civil engineering

BIM

coal plant

pipeline construction

optimization

BIM ( Building Information Modeling ) is short for Building Information Model. It is a model that enables all parties to work together and has all the information and resources of the project. It can provide a scientific collaboration platform of "integration, simulation and analysis" for designers, architectural professionals, designers, developers and end users. It can help them make better use of three-dimensional digital models to design, build and operate management projects^1–2.

Modern industrial construction projects, such as coal plant workshop, including construction, structure, water supply and drainage, electrical, ventilation, power, technology and fire and many other professional pipelines and various professional equipment. Due to the complexity of coal processing technology, there are processing equipment such as mixers and filter presses in the workshop, reaction equipment such as reaction tanks and reaction pots, heat transfer equipment such as radiators and coolers, conveyors, hoists and other conveying equipment, as well as various types of boilers, instruments, various types of pumps and valves.Therefore, there are a large number of professional pipelines in the whole coal plant, and the pipelines restrict each other. According to the traditional design method, the whole design may consume years of time, and there may also be technical problems such as pipeline collision, missing holes, and dislocation of embedded parts. For a long time, designers, builders and owners have been trying to solve the problem is : how to better co-ordinate the relationship between the various professional space layout, construction sequence. Now using BIM technology can improve the design efficiency and construction quality.

This paper studies the application and significance of BIM technology in the whole life cycle management of coal plant. The use of BIM technology to optimize the construction equipment pipeline in the coal plant can not only ensure the safety of the construction project, the smooth realization of the construction period, the reduction of costs and safety risks, but also improve the efficiency of enterprise management and enhance the economic benefits of enterprises.

The construction of equipment and pipelines in the coal plant is a very difficult project, involving many disciplines, which requires coordination from all parties.In traditional architectural design drawings, as shown in Fig. 1, it is difficult to clearly mark the location of the pipeline and the space required for each pipe, making construction more difficult.Due to the complexity of the coal plant engineering discipline, if the construction is carried out according to the traditional drawings, in the project construction process, various disciplines will affect and conflict with each other, which will cause various collisions and safety problems in the pipeline construction process. Therefore, with the development of new technology and construction industry, BIM technology is used to solve these problems.

In the construction of the project, all the buildings, structures, plumbing and heating systems will coexist in the same space, and there is a relationship of mutual influence and restriction among various professions. Collision detection allows each professional to better balance coordination in collaborative design. Through regular coordinated inspection of the comprehensive pipeline design, conflicts can be found in time and resolved before construction, making the design more reasonable and accurate.

There are two ways to use Revit for collaboration : working set mode and model linking mode. In working set mode, projects are split into different working sets and all building information can be edited with permission. Working set model is closer to the idea of collaborative design, multiple designers can complete their respective design tasks on the same model. The division of the working set can be flexibly divided according to the specific situation of the project, so as to ensure that the designer can complete the design at the same time node, and the coordination rate is high. Upload information to the central file at any time to ensure real-time sharing of information, improve work efficiency, but also reduce design costs³.

BIM technology can be used to establish building models, and designers of various professions can combine their professional design drawings with building information for secondary design. For example, prior to submitting the design of plumbing and power lines for coal plant buildings, various specialties need to be integrated together to avoid collisions between pipes ( air ducts, pipes, electric pipes, cable bridges ) and mechanical equipment. Using the ' collision check ' function of Revit software, you can accurately and quickly determine whether there is a collision between the primitives between a project or between the main project and the primitives connecting the model, and adjust it in time. BIM technology is widely used in the construction of equipment pipelines. It can not only generate three-dimensional model maps to simulate construction, but also budget for construction and supervise the construction process, which greatly improves efficiency⁴.

2.1 Visual analysis of building interior space

Visualization is the most basic function of BIM technology. In the BIM software, a 3D model of the building can be created based on the plane design of the project. In this way, it can display the structure size and space effect that cannot be displayed in the plane design drawing, and can better optimize the internal space. As shown in Fig. 2, according to the construction drawings, structure drawings, equipment drawings and process drawings of the coal plant, the designer can build a 3D model that meets the professional conditions in Revit software. The model can present the internal space design of coal plant, the professional designers can directly observe the construction drawing design results through the three-dimensional model, timely judge the design results ^5–9. At the same time, designers can use the 3D model for spatial partition analysis, and use BIM technology for visual adjustment to obtain the best spatial planning model.

In large space industrial plants such as coal plants, the factors affecting the floor height include: floor height, beam height, floor surface practice, electromechanical pipeline comprehensive height, ceiling height, etc. Designers can make good use of BIM technology to determine the floor height. Net height analysis of space is a comprehensive design process of building structure, water, heating and electricity. Using BIM technology can promote the process of determining the clear height, and coordinate the design, carry out pipeline collision inspection, optimize the design scheme, and finally determine the best clear height.

2.2 Data Comprehensive Dynamic Management

After the engineering designer completes the design of the coal plant, BIM technology can be used to manage data and establish a three-dimensional model. However, in the construction process of the project, there are multiple factors that will affect the original project plan. For example, in the later stage of a coal plant design, according to the owner 's process requirements, the models of large equipment such as screeners, crushers, and water pumps may change, and the location of the equipment, the power inlet port, and the water pipe inlet and outlet will also change accordingly, resulting in changes in the pipelines that have been laid in the previous drawings. If it is in the traditional design, the architectural profession and the plumbing profession must modify the drawings according to the adjustment of the process profession. However, after using BIM technology, once the project changes, all majors can respond quickly and solve the problems at all stages at any time. When project changes occur, designers can reduce inaccurate change data and unnecessary errors through information and visualization functions, and can also establish a dynamic database that can be updated in real time based on actual construction conditions^10–15.

2.3 Pipeline Collision Monitoring

Amid the development of hardware and pipelines within the coal plant, the sum of materials is colossal and the development handle is complex. It is troublesome for each teach to completely consider the pipeline and space position of other disciplines when making their possess plan, so the issue of pipeline collision will definitely happen.Within the CAD drawings, the pipelines of different disciplines are complex, and a few minor position deviations and stunned gaps are definitely off-base, which not as it were makes the development work force befuddled amid drawing development, but moreover causes quality issues.

The overall collision inspection process is shown in Fig. 3. As shown in Fig. 4, the designer sets collision detection parameters in Revit software ; as shown in Fig. 5, when the software runs collision check, the system will automatically generate a conflict report ; At this time, the designer can find out the collision point, and timely modification according to the three-dimensional map and system prompts. Repeat the entire inspection process until the final modified model fully meets the requirements. When using BIM technology to detect collision points, designers can not only see the specific collision situation, but also export accurate detection reports from the system, which makes the project construction more safe and reliable, and greatly improves the construction efficiency.

2.4 Precise Design Of Pipeline

Using BIM technology, designers can accurately determine the location of the pipeline during the design process and leave a prepared location for the pipeline of construction equipment. In the process of designing a coal plant, for example, the designer created a three-dimensional model of a concrete retaining wall for coal, a steel bar, and a cooling water pipe via BIM technology.Detailed location, material, and attribute information are available for each construction.With this intuitive 3D model, designers can find out in advance whether the water pipe are in the reasonable place, whether the spacing of the steel bar spacing is accurate and whether the cooling pipes will collide with the steel bars^16–18.This allows professional designers to do a good job of positioning water pipes, optimizing the steel layout works ahead of time, to avoid rework, improve precision, reduce error, reduce cost.

2.5 Simulation Construction

The construction of the equipment pipeline is very complex, prone to errors, the installation sequence may be wrong.Pipeline construction for construction equipment is fundamentally permanent.If the setup in a certain stage is wrong, it is possible to redo the entire project.Using BIM technology in conjunction with Fuzor software, the key parts of the build can be visualised in simulation, a reasonable planning of the construction process, and steps to prevent problems ahead of time, reducing the possibility of problems in the construction process, in order to ensure smooth construction progress.

2.6 Application Of Bim In Construction Change

The construction of industrial plants such as coal plants plants has the characteristics of long-term, complex and dynamic. Many unexpected events and changes cannot be predicted in advance at the design stage. Therefore, in the construction of large-scale construction projects, there will inevitably be a large number of design changes.Once the design changes, it will inevitably bring to an increase in construction period and cost, directly affecting the project cost^19–21.The application of BIM technology can greatly improve this situation.After project construction starts, BIM technology can update the model according to the design changes in the project construction, and visualize the content of the changes, which can more intuitively and accurately assess the feasibility of the change plan and the impact of inter-industry conflicts.

There are many majors involved in the design of coal industrial plants, and the design is difficult, which increases the uncertainty in the construction process. Although the traditional project management has been greatly improved, there is still a gap in information management.

For example, in the traditional project construction technology disclosure, the data are mostly text data, only the narrative content, the construction personnel can not see the key points.Using BIM technology, technical disclosure can be realized in the form of short video, and visual technical disclosure can be realized in complex nodes, special-shaped components or complex construction processes in the project.This can make it more convenient for construction technicians to understand the key points and precautions in the project, and can also better ensure the reasonable construction, improve the construction efficiency and quality, and bring good economic benefits to the owners.

Let us take a reinforced concrete structure of nearly 50,000 square meters of coal plant as an example. The building includes various process equipment, public equipment and pipelines. If according to the traditional construction process, in the construction process encountered problems, the parties to discuss, and then revised, and then re-construction, the whole process takes several years. However, if the model is built with Revit software on the basis of two-dimensional construction drawings, the whole building, structure, equipment and pipeline model can be built in about 30 days.After defining collision rules, running the computer program can identify thousands of pipe collision positions. In the event that convenient alteration can be made, more than 90% of revamp and fabric squander in development can be maintained a strategic distance from, sparing time and fetched. In arrange to see the impact comparison some time recently and after optimization more clearly, we are going normalize the information some time recently optimization. The optimized ratio = the outright esteem of the optimized data/the pre optimized information. The comparison of the comes about some time recently and after optimization is appeared in Fig. 6.

The effect of implementation has been optimized in the following aspects :

3.1 Improve Design Efficiency And Level

The 3D model is established in Revit through planar CAD drawings, so that the project situation can be displayed in front of all participants intuitively and clearly. The designers of all parties can participate in the design process in the whole process, and propose changes synchronously on a unified platform according to the actual project construction situation, so as to finally achieve the overall control of the project construction.The cross collision of pipelines between different disciplines can be found and handled in a timely manner, effectively reducing the probability of construction rework ^21–23. At the same time, the parameterized model characteristics of BIM technology greatly improve the calculation speed of project quantities. These works have successfully made strides the plan, development effectiveness and level of the coal plant.

3.2 Control project cost, improve project quality

The progress management method based on BIM technology provides theoretical guidance for the preparation of the construction project schedule. Through BIM technology, a more accurate and detailed schedule can be established to ensure the clarity and operability of the implementation of the construction schedule^24–25.Based on the visualization and intelligent functions of BIM technology, combined with the 3D simulation function of BIM technology, the effective connection between the schedule and the 3D model is realized.

The three-dimensional simulation of BIM technology refers to the construction simulation by adding time dimension to the three-dimensional model, finding out the key nodes in the construction process through construction animation and model information, and designing and adjusting the construction schedule.

The three-dimensional simulation function based on BIM model is to combine the simulated construction of the three-dimensional model with the schedule during the preparation of the schedule, so that the actual progress of the schedule can be intuitively understood. Through the control of key time nodes, the specific implementation of the construction plan can be guaranteed, thus improving the project quality and ensuring safe and civilized construction.

3.3 Facilitate Post-operation

During the whole construction process of the project, the building information model will be continuously updated and maintained. Its rich information content provides a good management information basis for the operation and maintenance of the entire project, and effectively promotes the control of operation and maintenance costs.

3.4 Demonstration Significance For Engineering Projects In Coal Industry

In this project, BIM technology provides a good tool for the modeling of coal plant, and the use of BIM also reflects great application value in project budget control. At the same time, it also promotes the integration of enterprise industrialization and informatization, and plays a leading role in the engineering projects of the coal industry.

BIM innovation includes a exceptionally wide application prospect within the plan and development of coal plant, and is additionally a really dynamic inquire about heading at display.This paper systematically expounds the application of BIM technology in the design and construction of coal plant, and summarizes and analyzes the application of BIM technology from the aspects of information model establishment, project life cycle management, etc.The use of BIM technology in coal building design can improve the design level and reduce the economic cost of design. The simulation of visual construction scheme also improves the overall level of operation management in the later stage, which plays an important role in promoting the management upgrading of the coal industry and accelerating the combination of industrialization and informatization.

From the perspective of economic development, BIM technology not only improves the quality and efficiency of the project, but also reduces the time cost and economic investment of the project. In the future, BIM technology will also be combined with big data to realize intelligent auxiliary decision-making of coal plant design, construction, operation and maintenance.

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No competing interests reported.

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Design Optimization of Coal Plant Construction Equipment Pipeline Based on BIM Technology

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Abstract

Figures

Introduction

Application Of Bim Technology In The Design And Construction Of Coal Plant Construction Equipment Pipeline

Coal Plant Pipeline Construction Optimization Design Based On Bim Technology

2.1 Visual analysis of building interior space

2.2 Data Comprehensive Dynamic Management

2.3 Pipeline Collision Monitoring

2.4 Precise Design Of Pipeline

2.5 Simulation Construction

2.6 Application Of Bim In Construction Change

Bim Application Effect Analysis

3.1 Improve Design Efficiency And Level

3.2 Control project cost, improve project quality

3.3 Facilitate Post-operation

3.4 Demonstration Significance For Engineering Projects In Coal Industry

Conclusion

References

Additional Declarations

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