As China Reform and opening up The accelerated pace of urban land use has become tighter, city building presented to the high altitude and underground development of the characteristics of the bipolar. Currently, underground construction Fire Still is the world's one of the hardest fighting of the fire, underground building fire risk has drawn increasing attention in general. Large-scale underground fire, often with devastating consequences to people's lives and property pose a serious threat. Underground construction Huaian relatively small, but even a small number of underground construction in the event of fire damage is incalculable, the downtown Huaihai Plaza underground, the underground space and more business for the individual bars, staff great intensity in case of fire, personnel evacuation is the biggest problem, as the fire department should be the fastest rescue, fire fighting as quickly as possible.
Underground building fire Why is it one of the hardest fighting of the fire? There are several reasons:
1. Gas filled. Hypoxia underground building itself, if a large number of toxic combustion gases and poisonous gases rise, it would also consume a large amount of oxygen, on a very real threat to human survival.
2. View is obstructed. Underground construction in the event of fire will quickly produce a very strong smoke, but did not like the earth construction, 80% of smoke spread from broken windows to go into the atmosphere, the smoke made visibility very low.
3. High temperature burning grill. Underground construction fire, if combustion is common solid combustible material, the resulting temperature and gas fires are much lower than, but as high as 800 ~ 1200 , hot flue gas in the underground building is difficult to shed, so that fire difficult to access. If the underground building is burning liquefied petroleum gas, the temperature is as high as 2000 or more, firefighters could not enter.
4. Attack difficult. Underground building entrances are usually less, and narrow internal channel bend, fire is unknown, making difficult to fire commanders. Fire situation, building entrances underground hot flames and billowing out braving smoke Water gun Often beyond the reach or strike jet fire is not in point, in this case, the attack often experience a long time to work.
How fighting fire underground building tactics and technology?
1. Underground building fire detection Fire reconnaissance work to be solid and quick. First of all, to strengthen investigation and study, are familiar features of underground construction. Underground construction fire, the first squadron commander should contact the underground construction insiders quickly, get construction drawings. Only in a situation that can be issued after the attack command, and must not be the same as fighting fire with direct observation of ground orders. Inquired about the situation is not clear, underground fire is not clear, commanders can not make decisions, should be immediately sent reconnaissance unit to determine the ground conditions. Deep ground reconnaissance should pay attention to ascertain whether there is trapped, the search room, chamber, corridor, toilets and other parts of timely rescue persons in distress. Determine the location of fire, the fire situation and so on, and promptly report to the fire commander. Because of deep reconnaissance and fire bad environment, dangerous, selected must have good mental qualities and business skills to be competent.
2. By combustible gas detectors, thermometers, thermal imaging devices, surveillance robots, etc., in the underground construction entrance composition and concentration measurement of toxic gases, oxygen content, air temperature, for the fire scene commander to provide accurate basis for decision making.
Fire command position should be chosen in the underground construction near the entrance or inlet, where is the fire of combat officers and soldiers access, direct observation is conducive to fire commanders to understand the situation, facilitate the implementation of the front command.
3. Underground building the basic fire fighting tactics
Underground construction has its own unique structural characteristics, after the fire, the following two basic methods can be used in combat in one of:
First, evasive, select the storm inlet The e-commerce company in China offers quality products such as China Electric Inverter , Online High Frequency UPS Manufacturer, and more. For more , please visit Online High Frequency UPS today!
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