【 Weak current College 】 basement fire fighting

High-rise residential building has a basement or fortification, but with economic development, developers will do as income in the basement of an important part of the commercial rental to do all kinds of business, but this is in addition to income, there is also a maximum risk-fire. After fighting a fire in the basement is difficult because most of the basement is designed to be authentic, checkerboard, inside a narrow roadway, stretches like a maze, combined with the architectural design of the entrance on the ground floor, fire-fighting equipment, and therefore save ourselves such fire has its complex features and difficulties of extinguishing. I. characteristics of underground fire? (1) no powder amass smoke in the event of fire, the smoke rising from a fire point up, rapid spread, accumulation and the formation of smoke because of poor air circulation. The accumulation of smoke and also of the basement "suction" role, spread to the entrances of some of the smoke was entrainment back, and this contributed to the basement of smoke billowing, in the event of fire suppression work difficult. (2) causing casualties if event fires first thing is to power down the basement also lack emergency lighting and smoke evacuation led, in full, the underground visibility is often less than the "risk-of-sight" (provisions for three metres), or even less than a metre, trapped people panic out of my head, even if the fire near the entrance, the flame will blockade channel, underground space is limited, a large number of oxygen, so the combustion loss caused by the underground fire personnel injury is very serious. (3) fire-fighting operations difficult basement General is a an entrance, and has two entrances, two or more rarely. P basement entrance and small, narrow channels, arrived at the scene of the fire power cannot be in full swing, you can only send capable unit organizational water gun in-depth internal attack the source of fire. X optimal fire fighters in the basement after turning more, door card much dexterity, lay in the roadway, adjustment equipment with water or transfer water gun position is difficult to fire-fighting personnel bring certain difficulties. Second, the underground fire extinguishing existing fire equipment and strength are increasingly sophisticated, the underground fire tactical measures also in further study, below the basement fire extinguishing and their countermeasures for some superficial discussion. (1) control the exact occurrence of underground fire fires <, to find information or staff inquiries, make sure there are no people stranded, quantity, location, location of the fire and burning material, although usually understand and master the basement, then to know if there are underground fire spread up the building. The fire brigade arrives after an in-depth check whether someone is in the basement, note the search channel, rooms, warehouses and so on each site, timely emergency distress personnel, the fire commander to report in person to listen to the fire, to grasp the exact underground fires and the stage of development to determine exhaust rescue and fire fighting and other appropriate measures. (2) Organization of exhaust smoke, at the organization can improve visibility, and reduce indoor temperature, you can quickly find the source of fire. Methods in diffussion many, but the underground fire can use underground ventilation Windows, natural gas, can also be used to force the exhaust smoke. With automatic smoke exhaust and spray system, you can start the fire automatic control system, smoke and water spray. But it is worth noting that the exhaust gas is applied to the fire in the early and late. The initial smoke can improve visibility, later more than smoke and smoke emission hot gas. If the fire development phase of the smoke, would improve the combustion of oxygen, accelerated, so that people could not go. Experience shows the basement fire can use power foam exhaust, but should try to press the smoke and gas flows in the direction of Jet Propulsion, and cannot be combined with spray water. (3) positive saving lives underground fire fighting, to adhere to the "life-first" principle. When the fire when early, should be quickly organized forces into the basement for evacuation (Note carries a boot logo for lighting appliances), and send people to escort panic, delirious. When Fireworks violent, some teams should be organized, in adequate water flow under the cover of a storm to save lives. In the save original trapped underground fire personnel, in addition to strengthening the fire power, should mobilize brother unit or units to coordinate rescue personnel's life.