초록 ▼

Fire prevention and suppression system is provided for human occupied computer rooms and other industrial and public facilities. The equipment of the system provides low-oxygen environments with climate control and at normal atmospheric or slightly increased pressure. The system employs an oxygen-ex

Fire prevention and suppression system is provided for human occupied computer rooms and other industrial and public facilities. The equipment of the system provides low-oxygen environments with climate control and at normal atmospheric or slightly increased pressure. The system employs an oxygen-extraction apparatus, which supplies oxygen-depleted air inside an enclosed area communicating with the device. A fire-extinguishing composition is provided for continuous use in human occupied environments, being mostly a mixture of nitrogen and oxygen having oxygen content ranging from 12% to 18%.

대표청구항 ▼

[ What is claimed is:] [1.]1. A system for providing a breathable fire-extinguishing environment for fire prevention and fire suppression in enclosed areas, said system comprising:an enclosing structure having internal environment therein containing a gas mixture which is lower in oxygen content tha

[ What is claimed is:] [1.]1. A system for providing a breathable fire-extinguishing environment for fire prevention and fire suppression in enclosed areas, said system comprising:an enclosing structure having internal environment therein containing a gas mixture which is lower in oxygen content than air outside said structure, and an entry communicating with said internal environment;an oxygen-extraction device having an inlet taking in an intake gas mixture and first and second outlets, said first outlet transmitting a first gas mixture having a higher oxygen content than the intake gas mixture and said second outlet transmitting a second gas mixture having a lower oxygen content than the intake gas mixture;said second outlet communicating with said internal environment and transmitting said second mixture to said internal environment so that said second mixture mixes with the air in the internal environment;said first outlet transmitting said first mixture to at location where it does not mix with the air in the internal environment;said internal environment selectively communicating with the outside atmosphere and emitting excessive internal gas mixture into outside atmosphere;said internal environment beg a breathable hypoxic air composition in human visited or occupied areas having oxygen content ranging front 12% to 18%.