Design sequence: process flow diagram, equipment layout plan, equipment drawings, and plant building construction drawings

The sequence for designing a production workshop is to start with the process flow diagram, followed by the equipment layout plan, then the equipment drawings, and finally the building construction drawings for the facility. The process flow diagram is the foundation of the entire workshop design; it determines information such as the production process of the product, material flow, and process steps. Once the process flow diagram is finalized, the equipment layout plan can be prepared to determine the location of each piece of equipment as well as the coordination relationships between them. Next, the designer will create equipment diagrams, detailing the structure and characteristics of each device. Finally, based on the previous design results, the designer will prepare the construction drawings for the factory building, specifying details such as its shape, size, height, and structure. In short, the design sequence of these drawings is progressive, with each drawing building on the previous one. This ensures that the design of the entire workshop is reasonable, complete, and efficient. -

Everything is guided by flowcharts, including the equipment involved, electrical systems, piping and valves, as well as the required basic conditions. For reference.

Therefore, in such projects, the process comes first; the process is based on production requirements. Based on those requirements, a process flow diagram is created. Once the process flow is determined, equipment layout is carried out. Before this, it’s advisable to prepare a list of equipment details, including its dimensions, weight, and power. After the equipment layout is completed, it is submitted to the architectural team, who then carry out the architectural and structural design based on the conditions provided by the process. This is the project process for the technical renovation of a local workshop. Large projects also involve planning and design, as well as overall layout design.

1. Design the overall process flow diagram, determining the types, quantities, and specifications of the main process equipment, as well as the sequence of pipe connections between these devices. 2. Based on the dimensions, quantities, and connection methods of the equipment, arrange them in an overall layout plan, selecting a reasonable arrangement pattern. Meanwhile, taking into account the surrounding conditions, determine the flow patterns for people and materials so that they match the equipment layout plan; for example, feeding equipment should be located near the material handling pathways, the outlet of smoke treatment devices should be close to the chimney, and water treatment equipment should be placed near the centralized drainage points. At the same time, fire exits must also be taken into account when planning the production and office areas. 3. Based on the general layout plan, complete the design of the construction drawings for the factory building and office areas (civil engineering). Meanwhile, based on the equipment specifications, refine the drawings related to the foundation conditions of each piece of equipment as well as the piping and instrumentation diagrams (process engineering). For structures made of steel, carry out the design of those steel structures (structural engineering). If it is confirmed that the equipment layout does not need any changes, then the design for the drainage systems in the trenches can be carried out (plumbing). These various tasks can be carried out simultaneously by different specialists. 4. The process engineering team carries out piping and instrumentation design based on the pipeline flow diagrams as well as architectural and structural drawings; any additional support frame requirements are added as needed, after which the structural engineering team proceeds with the detailed design. 5. Subsequent disciplines conduct mutual reviews to refine the construction drawing design. The explanation here is rather simplified; actual project design involves many other issues. Procurement: For example, since the production cycle for certain equipment is long, it is necessary to arrange funding and make purchases in advance. Installation: In some cases, the conditions for lifting such equipment are complex, which means that certain construction tasks must be completed first before the equipment can be installed, or there are tasks that cannot be carried out until the equipment is in place. These matters need to be addressed ahead of time during the design phase. Therefore, for a project, having a good chief designer and a good project manager who can oversee overall management and coordination can help create significant value through effective management.

However, the construction party first carries out civil engineering work and the construction of the factory building; therefore, civil engineering foundation plans and construction drawings for the factory building are used first. Once the equipment arrives, equipment layout plans are needed for its installation. After the equipment is installed, process flow diagrams come into use for piping work. It seems as though the order of these drawings is reversed, doesn’t it?

Process flow diagrams, etc., have versions 0, 1, 2, 3, and are continuously being improved.