Study On Reliability Of Fire Supply-Water System For Underground Building

With the increase of city population and the development of socio-economy, mankind unceasing to high-rise and underground extend own vivo sphere. But two kinds of this are special to construct, especially underground building once occurring fire, its characteristic and ground building that built have great discrepancy, after forming fire disadvantage in people safety evacuate with fire put out a fire to save life and property, cause serious personal casualties and property loss easily. In underground building, fire control is the most important extinguishing system to water system, can carry out effective control for fire after fire occurs with put out a fire to save life and property, to construct internal people to evacuate, strive for more time. Therefore study that underground building fire control gives water reliability, make system can in fire occur the operation with reliable time; this is pendulum in us in front of a important program of fire control.The theoretical method that this paper has first elaborated establishment and the classification of systematic model in the definition of systematic reliability, some important concepts of reliability as well as reliability research and has put forward research then gives the two subsystems of water system for underground building fire control, the reliability that fire hydrant gives water systematic and automatic sprinkler system has carried out theoretical analysis. In analysis research course, make statistics on the one hand for the Shanghai certain record of care and maintenance of the underground automatic shower nozzle of parking lot of sprinkler system, have expounded and proved the reliability of systematic single assembly using Weibull distribution, On the one hand with expert investigation law, provide investigation questionnaire to expert, carry out systematic reliability to build mould, have expounded and proved the reliability of entire system, and then have discussed system but maintainability pattern, the systematic installation of spare parts is definite as measuring. Additionally, this paper has suggested through establishing systematic fault tree and having analyzed to affect underground building fire control to the factor of water systematic reliability how to perfect and guarantees systematic reliability, as well as reliability the enforcement in daily work.