The centrifugal fire pump is a critical component of the fire protection system, used in fire hydrant systems and automatic sprinkler systems. During a fire, it can swiftly deliver water to the scene, providing the necessary pressure and flow to effectively extinguish the fire. In industrial settings such as petrochemicals, power plants, and steel mills, the centrifugal fire pump serves as a vital fire protection measure for industrial facilities. It can be quickly activated during the early stages of a fire, supplying power to fire curtains and foam extinguishing systems, thereby effectively controlling the spread of the fire. The centrifugal fire pump is a crucial element in urban fire water supply, providing water for various buildings and public places. It can also work in conjunction with fire trucks and other firefighting equipment to enhance fire suppression capabilities. In emergency situations requiring immediate water supply, such as mine rescue and flood control, the centrifugal fire pump plays a vital role, offering timely water support for rescue operations.
The centrifugal fire pump utilizes the centrifugal force generated by the rotating impeller to impart energy to the liquid, enabling its conveyance. As the impeller rotates, the liquid is thrown towards the outer edge of the impeller, creating a low-pressure zone at its center. Driven by the external atmospheric pressure, the liquid continuously enters the impeller, thus maintaining a continuous water supply.
The centrifugal fire pump is primarily composed of components such as the impeller, pump shaft, pump casing, sealing device, and bearings. The impeller, which is the core component, is typically a closed impeller, which enhances the pump’s efficiency and head. The pump casing is typically volute-shaped, converting the kinetic energy of the liquid into pressure energy. The sealing device prevents leakage, ensuring the pump operates smoothly.
The selection of centrifugal fire pumps should be based on the specific needs of the fire protection system, including the type, size, and number of sprinklers in the building. The selection is typically based on the water demand for multiple fire hydrants or sprinklers to be activated simultaneously. When determining the pump’s head, factors such as the highest point in the fire protection system, the height difference between the pump and the highest point, pipeline resistance loss, and the pressure required at the most disadvantageous point must be considered. Different fire protection systems have varying pressure requirements.
Post time: Jun-04-2025