The shield machine is a large-scale underground construction machine, which is mainly used for excavating tunnels, subways and other projects. Due to the particularity of its working environment, the shield machine often encounters emergencies such as fires, so it is indispensable to be equipped with fire extinguishing devices.
The fire extinguishing device of the shield machine usually uses a high-pressure gas fire extinguisher, and its fire extinguishing agent is inert gas or chemical gas, which can release a large amount of inert gas or chemical gas in a short time, and reduce the oxygen concentration to below the minimum required for combustion, so as to achieve the purpose of fire extinguishing.
In addition to the fire extinguisher, the EPB is equipped with an automatic fire extinguishing system. The system monitors the temperature and smoke concentration of the shield machine through sensors, and once an abnormality is found, the system automatically activates the fire extinguishing device and sprays the fire extinguishing agent to all parts of the shield machine to quickly extinguish the fire.
In order to ensure the effectiveness of the fire extinguishing device, the EPB operator needs to regularly inspect and maintain the fire extinguishing device to ensure that it is in good working order. At the same time, operators need to be trained to properly use fire extinguishing devices and be able to take effective fire extinguishing measures quickly and effectively in the event of a fire.
In short, the fire extinguishing device of the shield machine is one of the important equipment to ensure the safety of the project. Through reasonable configuration and use, it can effectively reduce the hazards of fire and other emergencies to the shield machine and its operators, and ensure the smooth progress of the project.