Dual Power Fire Pump Units for Large Fixed Fire Water Supply Projects
The dual-power fire pump unit integrates a diesel engine fire pump and an electric fire pump, and has the advantages of automatic switching, automatic start, continuous water supply, intelligent control, large flow rate, high head and multiple safety protections. It is widely used in industrial parks, high-rise buildings, petrochemical plants, ports, power plants, airports, municipal engineering and large-scale fixed fire water supply systems, providing a stable, reliable and efficient fire water supply solution for modern fire protection engineering.
Dual-power fire pump units are one of the core pieces of equipment widely used in modern large-scale stationary fire water supply projects. They employ a combination design of diesel and electric fire pumps, and through an intelligent control system, achieve automatic switching, automatic start-up, and coordinated operation. This provides continuous, stable, and highly reliable fire water supply for industrial parks, high-rise buildings, petrochemical plants, ports, power facilities, airports, rail transit, warehousing and logistics centers, large commercial complexes, and municipal fire protection projects. The entire unit integrates the diesel power system, electric fire pump, control cabinet, common base, piping system, valve components, and auxiliary equipment. It not only meets the daily operational needs of the fire protection system but also allows for rapid switching to backup power in the event of a main power outage, equipment failure, or sudden fire, achieving continuous water supply around the clock and significantly improving the safety, reliability, and automation level of the fire protection system. The biggest advantage of dual-power fire pump units lies in their more comprehensive power configuration. The electric fire pump serves as the primary power source for daily fire water supply, characterized by rapid start-up, stable operation, convenient maintenance, and high energy efficiency under normal mains power conditions, meeting the long-term stable operation requirements of building fire protection systems. The diesel fire pump serves as an independent backup power source, unaffected by external power supply. Even in the event of a power outage or grid failure due to a fire, it can still quickly start using its own power system, continuously providing sufficient water to the fire protection network. This effectively prevents fire protection system failure due to power outages and significantly improves the safety redundancy of the fire water supply system. The entire set of equipment uses high-efficiency horizontal centrifugal fire pumps. The pump body is optimized based on advanced hydraulic models, with smooth internal flow channels. The impeller undergoes precision machining and dynamic balancing testing, featuring large flow rate, high head, high hydraulic efficiency, stable operation, low vibration, and low noise. It can be configured with various flow rate and head specifications to meet diverse application requirements such as long-distance water supply to high-rise buildings, water supply to large industrial fire protection networks, and special fire protection conditions. The diesel engine utilizes a mature and reliable industrial power platform, offering stable power output, high torque at low speeds, and excellent fuel economy. Equipped with a high-efficiency fuel filtration system, lubrication system, and cooling system, it maintains stable performance during long-term continuous operation, providing ample power to the fire pump. The engine cooling system employs a high-capacity radiator and a high-efficiency fan to quickly dissipate heat generated during operation, maintaining normal operation even in high-temperature, high-humidity, and continuous high-load environments, effectively extending equipment lifespan. The electric fire pump uses a high-efficiency, low-energy-consumption motor, featuring rapid start-up response, high operating efficiency, and minimal maintenance. A high-precision coupling connects the motor to the fire pump, ensuring smooth and reliable power transmission, effectively reducing bearing wear and vibration, and improving overall operational stability. The dual-power fire pump unit is equipped with an intelligent fire control system that can monitor fire pipeline pressure, equipment operating status, power supply status, engine parameters, and pump operating data in real time. When the fire pipeline pressure drops to the set value or the fire alarm system issues a start signal, the control system can automatically start the electric fire pump. If an abnormality in the main power supply, the electric fire pump’s inability to operate normally, or the pressure failing to meet system requirements is detected, the system will automatically switch to starting the diesel fire pump, achieving seamless water supply. The entire switching process is fast and stable, effectively ensuring the continuous operation of the fire protection system. The control system supports three operating modes: automatic control, manual control, and remote control. It also features multiple intelligent management functions, including operating parameter display, historical record query, fault alarm, self-test, remote communication, and data upload. It can be easily connected to a fire control center or smart fire protection platform to achieve centralized monitoring and remote operation and maintenance management, improving equipment management efficiency. To ensure long-term stable operation, the unit is equipped with multiple safety protection functions, including low oil pressure protection, high coolant temperature alarm, overspeed protection, start-up failure alarm, abnormal battery voltage alarm, fuel level alarm, charging fault alarm, phase sequence protection, phase loss protection, overload protection, and emergency shutdown function. These features enable timely alarms and protective measures in case of equipment malfunctions, effectively reducing the risk of equipment failure and ensuring the fire protection system remains in a safe and reliable operating state. The entire unit adopts a modular, integrated steel base design with a rational layout of components and a compact overall structure, facilitating transportation, hoisting, and on-site installation. This reduces on-site piping connection work, improves construction efficiency, and provides ample maintenance space for filter replacement, lubrication, engine maintenance, and fire pump overhaul, effectively reducing future maintenance costs. All major pipelines use standard flange connections, ensuring reliable sealing performance and withstanding high operating pressures to guarantee the long-term stable operation of the fire water supply system. The unit can also be flexibly configured with pressure-stabilizing pumps, pressure tanks, automatic water replenishment systems, remote communication modules, flow testing devices, and various monitoring instruments to achieve a more comprehensive fire water supply solution, tailored to different project requirements. The product boasts excellent environmental adaptability and can be configured with cold-weather start-up devices, high-temperature heat dissipation systems, anti-corrosion coatings, salt spray protection, and high-altitude power compensation schemes according to the region of use. This ensures stable operation in cold, tropical, coastal, desert, and high-altitude regions, meeting the diverse fire protection engineering project needs worldwide. Dual-power fire pump units are widely used in key fire protection locations such as petrochemical enterprises, power energy bases, natural gas storage and transportation facilities, steel metallurgical enterprises, mines, ports, airport terminals, high-rise residential buildings, commercial complexes, data centers, hospitals, schools, rail transit, municipal water supply projects, and large-scale warehousing and logistics centers, providing high-standard and highly reliable fire water supply for modern fire protection infrastructure construction. With the development of smart fire protection, dual-power fire pump units can also be integrated with automatic alarm systems, fire protection IoT platforms, and remote monitoring systems to achieve real-time equipment status monitoring, fault early warning, remote maintenance, and data analysis, providing more intelligent, efficient, and reliable technical support for modern fire management. With its comprehensive advantages such as independent dual-power configuration, high-efficiency fire pump, intelligent automatic control, multiple safety protections, continuous and stable water supply, modular installation structure, convenient maintenance and wide environmental adaptability, dual-power fire pump unit has become an important part of modern large-scale fixed fire water supply projects. It provides a solid guarantee for the establishment of a long-term, stable, safe and reliable fire water supply system for various key projects, and continuously meets the strict requirements of modern fire protection engineering for high reliability, high automation and high safety.
