FIRE PUMP FOR FIRE FIGHTING SYSTEM

Abstract: the present invention discloses a fire pump for a fire fighting system, the fire pump including a pump body (), a motor (), a transmission assembly (), a water inlet pipe (), a water outlet pipe (), and a display instrument (). the pump body is a centrifugal pump, and the pump body includes a volute, an impeller (), and a diffuser (). the impeller includes a plurality of blades () distributed along a circumferential direction, and the diffuser includes a plurality of guide blades () distributed along a circumferential direction, where the diffuser has a geometric center o, the impeller has a geometric center o, and the geometric center o and the geometric center o are not concentric and have a deviation (y, x); and the plurality of guide blades of the diffuser are distributed along the circumferential direction at unequal intervals.

Inventor(s): Jinfeng ZHANG, Puyu CAO, Zhenhua SHEN, Chao WANG, Guidong LI

CPC Classification: F04D29/448 (NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps ; ion pumps ; electrodynamic pumps ))

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