PDMS is a three-dimensional factory design system developed by British AVEVA company, which was officially released in 1976. It has an independent database structure and does not depend on a third-party database. All design information is stored in the database.
The application of PDMS to factory design has the following characteristics: 1. 3D entity modeling. PDMS can realize the overall solution of interactive virtual real-time model display among entity models, providing real 1:1 three-dimensional color stereoscopic model, covering the whole process of factory design. In the interactive design process, real-time 3D collision inspection can be realized to prevent and correct design errors in time. 2. Multi-professional and multi-user factory design system. Equipment modeling, pipeline layout, support and hanger layout, steel structure frame, beam and column stair platform and electrical cable bridge layout can be carried out by multi-user cooperation under PDMS. 3. cad construction drawings can be generated. Mark the drawing generation module DRAFT and the pipeline axis drawing generation module ISODRAFT. The report function of generating material table can be accurate to millimeters, which can reduce a lot of waste.
PDMS modeling is very simple. It uses the situation of building blocks for modeling. Drag and drop are supported. It is enough for containers and air separation devices, and the models built for some special surfaces may not be satisfactory. Special surface can use shear built changes, change is more trouble than proE, sw, etc. software. The modeling system of PDMS itself is enough to meet the design requirements of the factory. PDMS also provides some templates, which can be produced by modifying the template parameters. The import of third-party files is also supported, but excessive files of *. Pxare required to be imported. In the future, there may be more interfaces with other 3D software to make it easier to import files.
PDMS piping method adopts pipe casting guide pipe casting method, that is, only the position of pipe casting needs to be fixed, the system will automatically realize the pipe casting arrangement between pipe casting, and some pipe casting can be modified according to the body condition. Three-dimensional modeling of a project pipeline is shown in the figure:
PDMS provides data support for civil engineering. The Structure Module of PDMS can realize 1:1 3D real simulation of steel structure, steel platform, beam, column, guardrail, floor slab and straight ladder, etc. By using the management tool of opening holes, you can open holes for the model of floor slab and exterior wall, and extract the information of the location and size of opening holes. Extract the empty space after reservation to reduce the work of hitting the wall.
DEAR air separation has fully used PDMS for pipeline design, not limited to the PDMS piping in the cold box. Skilled use of PDMS, saving a lot of design time reduces many unnecessary design errors. Its advantages are very obvious, and it is more intuitive and easier to understand when showing to customers. Through the use of PDMS piping, the waste of materials of the company is reduced, and more reasonable piping layout increases the safety and reliability of the project, which wins the praise of users. The design Institute will do the work in this aspect more meticulously and accurately, and win more customers for the company. The pipeline in the cold box is the most important, and the setting of the pipe support in the cold box is the key to the quality of the cold box pipeline. In the next phase, we will talk about the installation of the pipe support in the cold box and the stress calculation.
