State Grid Corporation of China

State Grid Anhui Electric Power Research Institute

Xiaodong Zhang

Rui Liu

Yi Guo

Jiaqing Zhang

Dengfeng Cheng

Fengju Shang

Yubiao Huang

Yifu Zhou

Sha Luo

The present disclosure provides an air mixer for a compressed air foam (CAF) fire-extinguishing system. A foam concentrate and compressed air are respectively transported by a liquid inlet pipe and an air inlet pipe. When the compressed air and the foam concentrate enter a straight pipe through a first tapered pipe, they reach an outlet end of the first tapered pipe through a path narrowing due to different cross-section diameters at two ends of the first tapered pipe, and there is a compression process. Under an action of a high-pressure airflow, the foam concentrate is fully mixed. The mixed foam concentrate reaches a porous plate of the straight pipe and can be mixed secondarily. When the foam concentrate is discharged by a second tapered pipe, a flow path widens and there is a release process.

Air mixer for compressed air foam fire-extinguishing system and fire-extinguishing system

Growing community of inventors

Anhui, China

Xiaodong Zhang