Isuzu fire truck

The special fire pump for Isuzu fire trucks is a non-powered fire pump installed on the special chassis of Isuzu fire trucks. It uses the engine to drive the fire pump, transfers energy to the medium water, and supplies equipment such as fire cannons or fire guns through the pump outlet to extinguish the fire. Special fire pumps for Isuzu fire trucks are divided into high-pressure fire pumps, medium-high-pressure fire pumps, medium-pressure fire pumps, high-pressure fire pumps and high-pressure fire pumps according to outlet pressure.

Different types of special fire pumps for Isuzu fire trucks are different in structure and working principle.

The first is the high-pressure centrifugal fire pump. Its working principle is that when the pump is filled with liquid, the rotation of the impeller will centrifugally throw the liquid around, forming a certain pressure, and then flow out from the pump outlet. At the same time, a vacuum is formed at the inlet of the impeller, causing water from the water source to be sucked in. Since the centrifugal pump cannot remove air, the special fire pump for Isuzu fire trucks needs to be equipped with a water diversion device to form a vacuum by removing air and introduce water into the pump body.

by medium and high pressure fire pumps. It comes in many forms, including double-stage centrifugal and single-stage centrifugal. The two-stage centrifugal fire pump can realize series-parallel operation or series operation. By combining the working modes of different impellers, it can output water flows of different pressures. The single-stage centrifugal fire pump controls the output pressure by changing the rotation speed.

Another medium to high pressure fire pump is the centrifugal vortex fire pump. It consists of a single-stage centrifugal pump and a vortex pump connected in series. The centrifugal vortex pump has a compact structure and small size, and can generate high-pressure water flow as needed to meet fire protection needs. The impeller of the vortex pump throws the liquid out through centrifugal force, forming pressure. At the same time, the liquid is sucked in at the inlet, and the pressure is increased at the outlet due to the sudden contraction of the flow channel.

High-pressure fire pumps refer to fire pumps that can provide higher pressure water flow. It can be composed of a centrifugal vortex fire pump, increasing the number and configuration of impellers to increase pressure.

The special fire pump for Isuzu fire trucks plays an important role in fire extinguishing work. The engine drives the pump to transfer energy to the water to reach a higher pressure to meet the needs of equipment such as fire cannons or fire guns. Different types of vehicle fire pumps vary in design, but their common goal is to provide high-pressure water flow to ensure fire extinguishing effects.

In short, understanding the structure and principles of vehicle fire pumps is crucial for firefighters. Only by mastering its working principle and performance characteristics can we effectively operate and utilize fire pumps for fire extinguishing work and protect people's lives and property safety to the greatest extent.