Practice of high-efficiency refrigeration system renovation project for a commercial plaza in Shanghai

Taking the high-efficiency refrigeration system renovation project for a commercial plaza project in Shanghai as an example, this paper presents the project overview and the whole-process service of the high-efficiency refrigeration system renovation project. It elaborates in detail from five aspects, namely on-site survey, detection and evaluation of the air conditioning and refrigeration system, design of the high-efficiency machine room for the integrated magnetic levitation auxiliary cooling station, design of the high-efficiency refrigeration system for the main cooling station, solutions to key and difficult problems in the implementation of the high-efficiency refrigeration system, and the renovation effectiveness of the high-efficiency refrigeration system. It puts forward the operation pain points and solutions of the existing large-scale commercial high-efficiency refrigeration systems, and systematically summarizes the technical paths and implementation suggestions for the high-efficiency refrigeration systems applicable to renovation projects.