| Common parts of Chemical Equipment are important, common, standardized parts of Chemical Machinery, which are usually made of stainless steel and widely used to control the mechanical connection, fastening, support in chemical piping equipment. There are mainly seven categories, such as cylinder, head, flange covers, hand holes, bearing, manholes, flanges and so on, and each has other sub-categories; At present,3D CAD technology is more popular in china, and it is rapidly applied to the chemical design, which is of great significance for the design of the chemical development of three-dimensional figures.The topics depends 3D CAD technology background and regards AutoCAD system and Three-dimensional design environment as its platform, what's more, we utilize VBA and Vlisp programming language and dialog technology to develop the various types of geometry and standard data for detailed study, which is three-dimensional parametric modeling system development of Common parts of Chemical Equipment. It only allows users to click the mouse and input the simply and necessary parameters of the original geometry, the system will,be convenient, accurate and quick, give the correct three-dimensional solid modeling; its result will lead to achieve effection of three-dimensional geometric modeling and three-dimensional design of digital and automation. Successful development of the subject is important for chemical mechanical design and mechanical CAD technology, and made them digital and integration possible. In the future, it will lay a good foundation for enterprise digital simulation and virtual design. |