Abstract：

In the context of the increasing development of building information modeling (BIM) technology, this paper explores the current application of BIM technology in the process of HVAC design, analyses the existing shortcomings and possible improvement spaces. In-depth considerations are made on the application of this technology throughout the entire design process, and the implementation methods for HVAC specialty to adopt BIM design are put forward. In the early design stage, the construction of the framework system based on BIM design software should be completed in advance. Appropriate design stages should be selected to fully carry out BIM top-down design so as to give full play to its own characteristics and advantages. Relevant research is conducted on the model segmentation principles and coordination mode about comprehensive design of the pipeline in combination with the actual situation. On the basis of traditional design, an efficient automatic design method under the digital model system is explored. The design logic of HVAC specialty is combined with digital technology, and design principles are imported to control the digital processing flow, promoting the transformation from manual design to automatic design, thus providing references for the application of BIM technology in the design process.