Abstract：

In the existing university teaching and training link, generally only explains the relevant knowledge of the building cold and heat source system under the design conditions, and the operation adjustment under partial load is usually too difficult to explain. However, the training of high-quality operation and management personnel is the key to the high-efficiency and energy-saving operation of the cold and heat source rooms. Develops the operation adjustment module under variable conditions in the virtual reality experiment of cold and heat source system optimization design and operation regulation. Presents the virtual reality experiment module of the building cold and heat source system, the method of operation adjustment of the cold and heat source system under variable conditions, the virtual operation adjustment of the cold and heat source system under variable conditions, and the calculation and display of operation power of the main equipment. Based on the core knowledge of determining working point of water pumps, the actual regulation operation and the changes of theoretical working point of cold and heat source system can be shown directly and profoundly through man-machine interactive operation under start condition, design condition and partial load condition, so students can master the variable flow operation principle and operation of the transmission and distribution system of cold and heat source under partial load conditions.

Keywords:coldandheatsource,operationundervariableconditions,partialload,workingpointofwaterpump,flowadjustment,operationpower,virtualreality,experimentalteaching