Standards for chemical process flow diagrams

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This textbook is specifically designed for students in science and engineering fields, such as chemistry and chemical engineering, who have not taken a course in \"Mechanical Drawing\". The textbook is divided into two parts: upper and lower. It primarily focuses on introducing chemical process drawing, and also covers some aspects of descriptive geometry and mechanical drawing that are closely related to chemical process drawing, in order to serve as a foundation for learning chemical process drawing. At the same time, consideration was given to integrating content related to mechanical drawing and chemical engineering drawing, in order to avoid unnecessary repetition of relevant teaching materials and to help students acquire as much practical knowledge as possible in the field of chemical equipment and process drawing. The previous article covered fundamentals of descriptive geometry and mechanical drawing, including: views and projections, drawing and reading of three-view drawings, and geometric construction ； Standards, views, and view selection in mechanical drawing ； Drawing of part drawings and assembly drawings ； Contents such as chemical equipment diagrams. The next section is on chemical process drawing, which covers process flow diagrams, equipment layout diagrams, and piping layout diagrams. It also provides a detailed explanation of the structural characteristics and uses of chemical equipment, the common structural parameters of such equipment, as well as the processes of reading and drawing chemical process diagrams, along with aspects related to diagram design and layout. It also provides a large number of common technical parameters and legends for various chemical processing units, as well as the basic methods for drawing chemical process flow diagrams on site, offering readers important references for self-study and for independently creating drawings of common chemical equipment and process flow diagrams. This book can be used as a textbook for undergraduate programs in chemistry and chemical engineering processes that have a foundation in mechanical drawing, and it is also suitable for use in related fields at colleges and higher vocational technical schools. This book can also serve as an important reference for students majoring in chemistry and chemical engineering at institutions of higher education, for course design related to chemical processing equipment and principles of chemical engineering, for the preparation of drawings related to comprehensive design in chemical processes, and for practical operations in chemical production.