Research on Compressed Air Foam System Performance Diagnosis Combined with Engineering Practice

The compressed air foam system (CAFS) of the ultra-high voltage (UHV) converter station belongs to a new type of fire extinguishing system, which has less engineering application experience and lacks mature and effective performance diagnosis methods. With the goal of ensuring the operation reliability of the fixed compressed air foam system of the UHV converter station, the key parameters that affect the performance of compressed air foam (CAF) generators and the changes in foam performance in long-distance conveying pipelines of converter stations are identified, and the failure modes of the key components of the compressed air foam generating device are analyzed. Combined with the actual layout characteristics of the UHV converter station project, the CAFS simulation operation test and test injection are carried out, the CAFS generation device and the pipeline network transportation performance diagnosis technology of the UHV converter station are carried out, and the general method for the CAFS performance diagnosis of the UHV converter station is researched.