초록 ▼

Mobile fire-fighting systems and a method of producing breathable fire-suppression compositions are provided for extinguishing fires in buildings, and other human occupied structures, being also effective in suppressing fires under ruins of collapsed buildings. The systems employ a transportable hig

Mobile fire-fighting systems and a method of producing breathable fire-suppression compositions are provided for extinguishing fires in buildings, and other human occupied structures, being also effective in suppressing fires under ruins of collapsed buildings. The systems employ a transportable high-pressure container having the breathable composition or nitrogen gas, or a liquid nitrogen container, vaporizer and a mixing chamber, wherein a vaporized nitrogen gas is mixed with an ambient air in order to produce said breathable fire-suppression composition. Refilling stations are provided for refilling the mobile systems with said composition, nitrogen gas or liquid nitrogen, all being generated at site from the ambient air. The method of producing said composition at a fire site employs mixing of nitrogen gas with ambient air or, alternatively, vaporizing of liquid nitrogen in necessary quantities and mixing it with ambient air in provided proportions. A method of delivery of the breathable fire-suppressive composition inside a building on fire is provided as well. The systems are also suitable for installation as a stationary fire-suppression system for a building or other structure. A breathable fire-suppression composition is provided for use in said mobile systems, said composition having an oxygen content below 16% or from 10% to 12% for the majority of civil applications.

대표청구항 ▼

Mobile fire-fighting systems and a method of producing breathable fire-suppression compositions are provided for extinguishing fires in buildings, and other human occupied structures, being also effective in suppressing fires under ruins of collapsed buildings. The systems employ a transportable hig

Mobile fire-fighting systems and a method of producing breathable fire-suppression compositions are provided for extinguishing fires in buildings, and other human occupied structures, being also effective in suppressing fires under ruins of collapsed buildings. The systems employ a transportable high-pressure container having the breathable composition or nitrogen gas, or a liquid nitrogen container, vaporizer and a mixing chamber, wherein a vaporized nitrogen gas is mixed with an ambient air in order to produce said breathable fire-suppression composition. Refilling stations are provided for refilling the mobile systems with said composition, nitrogen gas or liquid nitrogen, all being generated at site from the ambient air. The method of producing said composition at a fire site employs mixing of nitrogen gas with ambient air or, alternatively, vaporizing of liquid nitrogen in necessary quantities and mixing it with ambient air in provided proportions. A method of delivery of the breathable fire-suppressive composition inside a building on fire is provided as well. The systems are also suitable for installation as a stationary fire-suppression system for a building or other structure. A breathable fire-suppression composition is provided for use in said mobile systems, said composition having an oxygen content below 16% or from 10% to 12% for the majority of civil applications. hanger is a condenser. 6. The plate heat exchanger as recited in claim 1 wherein said heat exchanger is an evaporator. 7. The plate heat exchanger as recited in claim 1 wherein said plurality of refrigerant circuits includes a first refrigerant circuit and a second refrigerant circuit each containing a refrigerant, and said stream of heat transfer fluid passing once through and exchanges heat with said first refrigerant circuit, travels through said connector, and then passes once through and exchanges heat with said second refrigerant circuit. 8. A refrigeration system comprising: a compression device to compress a refrigerant to a high pressure; a first plate heat exchanger including a plurality of alternating first plates and second plates creating a plurality or refrigerant passages being interrupted by at least one divider to separate said plurality of refrigerant passages into a plurality of refrigerant circuits each containing a refrigerant and a plurality of heat transfer fluid passages alternating with said plurality of refrigerant passages to contain a stream of heat transfer fluid which passes once through each of said plurality of refrigerant circuits and exchanges heat with each of said plurality of refrigerant circuits consecutively, and said stream of heat transfer fluid travels between each of said plurality of refrigerant circuits through a connector; an expansion device for educing said refrigerant to a low pressure; and a second plate heat exchanger. 9. The refrigeration as recited in claim 8 wherein said second plate heat exchanger further includes a plurality of alternating first plates and second plates creating a plurality of refrigerant passages being interrupted by at least one divider to separate said plurality of refrigerant passages into a plurality of refrigerant circuits, one of said plurality of refrigerant circuits containing said refrigerant and the other of said plurality of refrigerant circuits each containing a further refrigerant of a further compressor, and a plurality of heat transfer fluid passages alternating with said plurality of refrigerant passages to contain a stream of heat transfer fluid which passes once through each of said plurality of refrigerant circuits and travels between each of said plurality of refrigerant circuits through a connector, said refrigerant and said stream of heat transfer fluid exchanging heat therebetween. 10. The refrigeration as recited in claim 8 wherein said first plate heat exchanger is an evaporator and said second heat exchanger is a condenser. 11. The refrigeration as recited in claim 8 wherein said first plate heat exchanger is a condenser and said second heat exchanger is an evaporator. 12. A refrigeration system comprising: a first and a second compression device to compress a first and a second refrigerant, respectively, to a high pressure; a first plate heat exchanger including a plurality of alternating first plates and second plates creating a plurality of refrigerant passages being interrupted by a divider to separate said plurality of refrigerant passages into a first and a second refrigerant circuit, said first refrigerant circuit containing said first refrigerant and said second refrigerant circuit containing said second refrigerant, and a plurality of heat transfer fluid passages alternating with said plurality of refrigerant passages to contain a stream of heat transfer fluid which passes once through each of said plurality of refrigerant circuits and exchanges heat with each of said first and said second refrigerant circuit consecutively, said stream of heat transfer fluid travels between said first and said second refrigerant circuits through a connector; a first and a second expansion device to reduce said first and said second refrigerant, respectively, to a low pressure; and a second plate heat exchanger. 13. The refrigeration system as recited in claim 12 wherein said second plate heat exchanger further includes a plurality of alternating first plates and second plates creating a plurality of refrigerant passages being interrupted by a divider to separate said plurality of refrigerant passages into said first and said second refrigerant circuits, and a plurality of heat transfer fluid passages alternating with said plurality of refrigerant passages to contain a stream of heat transfer fluid which passes once through and exchanges heat with each of said first and second refrigerant circuits.