With the continuous expansion of the scale of international trade and the strengthening of port construction, the number and frequency of use of mobile port machinery will also become higher and higher. The fire hazards brought by mobile port machinery to the port have also become increasingly prominent as the scale of the port expands. It not only caused certain economic losses to the enterprise, but also directly had a major impact on the modernization of the port. Therefore, how to ensure the fire safety of port mobile machinery and effectively avoid fire accidents in port transportation is a normal thinking issue.
There are many types of port mobile equipment, involving a variety of equipment, such as container cranes, forklifts, tractors, etc. The structural characteristics of these equipment are different, but the three elements of fire cannot escape the fire, namely the ignition point, flammable materials and combustion-supporting materials. Therefore, there are many reasons for fires in port mobile machinery.
First, because port mobile machinery usually works for long hours and with high frequency, it is generally prone to engine and transmission line fire accidents. The starting and charging circuits of the engine are the main sources of fire. The current used by the starter when starting and the current emitted by the generator are generally tens of amps or even more than a hundred amps. In addition, this line is a long-term energized line, and the operating environment temperature is high. If the insulation layer of a mobile machine is grounded due to aging and cracking, the wires or contacts will burn and melt due to excessive local resistance and heat, igniting the wires or surrounding combustibles. At the same time, sparks may appear in the starter and generator carbon brushes during engine operation, which may cause fires in an environment with flammable materials.
Second, fires caused by high temperatures in the engine exhaust pipe. In order to prevent fire when the engine is designed, the oil pipes, electrical circuits and engine exhaust pipes are located on both sides of the engine. After the engine has been running for a long time, the temperature of the exhaust pipe is very high. If there are oil stains, cotton yarn and other flammable materials attached to the exhaust pipe, it is very easy to cause a fire.
Third, the production process of port mobile machinery requires the use of various chemical substances and flammable materials, such as lubricating oil, fuel, liquefied gas, paint, etc. Once these substances are leaked or out of control, they can easily cause explosions and fires. Especially during storage and transportation, if effective measures are not taken, such as leakage and fire prevention, the risk of fire will increase.
Fourth, the fire point in the cab. As a monitoring and operation center for the entire vehicle, the cab has particularly many electrical circuits. Routine inspection and maintenance of electrical circuits should be carried out more carefully, and arbitrary modification of electrical circuits is strictly prohibited. In addition, there is also the possibility of man-made fire starting point. For example, drivers and workers smoking during operation may cause fire accidents.
To sum up, the fire risk of port mobile machinery is very high. Therefore, effective fire safety management measures must be taken to prevent and control the occurrence of fires, and the use of more reliable and effective fire extinguishing devices must be strengthened. Only in this way can effective control be achieved. The risk of fire caused by the flow of machines in the port ensures the smooth, orderly and safe production of the port.
The port machinery/vehicle automatic fire extinguishing system integrates multiple functions of automatic fire detection, early warning and automatic fire extinguishing, and can effectively solve the spontaneous combustion problems of port mobile machinery/equipment caused by excessive engine room temperature, aging short circuits of vehicle lines, fuel leakage and other phenomena. And its customizable design system structure features make the system suitable for applications such as gantry cranes, quay cranes, continuous ship unloaders, mobile ship unloaders, continuous ship loaders, container loading and unloading bridges, Various port mobile machinery/equipment such as container palletizers.
The port machinery/vehicle automatic fire extinguishing system protection operation does not require human intervention or any power supply during the entire process. It is completely through the purely mechanical operation of the system components, which can greatly shorten the system's response time when facing a fire and advance the system's intervention time in the fire. , making the system more efficient in extinguishing fires. Moreover, the system uses water-based fire extinguishing agents and fine sprinkler nozzles to cooperate with fire extinguishing operations. The fine sprinkler nozzles can help the fire extinguishing agent be sprayed with fine particles less than 100 μm, covering the fire area in a wider range, and quickly achieving cooling and suffocation. Put out fires and make them more effective.
