As the supporting fire extinguishing products of port physical machinery/mobile machinery, PFH automatic fire extinguishing device and electric field bridge automatic fire extinguishing system have the characteristics of small space occupation, low cost and high reliability. They can quickly, accurately and effectively detect the fire in the protected space through smoke, temperature, flame and other detection equipment, and realize the integration of alarm and fire extinguishing. It provides effective fire protection for port crane loaders, stackers, electric scrapers, shore bridge cranes, stacker-reclaimer, bridge pig ship unloaders, portal cranes, gantry cranes, etc., and ensures the safe production and operation of the port.

The yard bridge, namely the rubber-tyred container crane, is a special machine for stacking container goods. With the promotion of the "oil to electricity" project of the container terminal yard bridge, the design of the yard bridge transfer power supply system based on lithium battery energy storage has been gradually realized, achieving the purpose of reducing costs, reducing emissions and environmental protection. Among them, lithium battery is the main power source of electric field bridge. During the continuous long working process, due to the overcharge and over-discharge of battery, high-frequency charging and discharging and other reasons, the internal diaphragm short circuit is caused, which makes the battery temperature increase rapidly, which leads to the thermal runaway of battery and fire, which is a serious fire safety hazard. How to achieve effective prevention and control of lithium battery fire has become the primary problem faced by the fire safety construction of the port bridge distribution room.

Technical advantages of electric field bridge PFH automatic fire extinguishing system/device:

(1) 24-hour real-time fire monitoring:

Using the cable-type heat detection technology, the linear detector is installed in the protective space, which can realize accurate fire detection in all directions without dead angle, and timely detect hidden fire and distant fire.

(2) Accurate release and high fire control efficiency:

The fire extinguishing agent can be transported quickly to the fire burning space by using the special pipeline of perfluorohexanone to reduce the waste of fire extinguishing agent and realize the rapid fire control in small space.

(3) Multiple startup modes, stable and reliable:

It has three modes of automatic temperature sensing, manual starting and mechanical emergency starting, ensuring the stability and reliability of the fire extinguishing system starting.

(4) Controllable start and stop, cooling inhibition:

The early warning linkage system can be started and controlled, with continuous multi-point protection and good cooling effect of fire extinguishing agent, effectively reducing the occurrence of re-ignition.