A gas fire-extinguishing apparatus according to an embodiment of the invention is configured such that a silencer is disposed on an ejection head which ejects fire-extinguishing gas supplied from a fire-extinguishing gas supply source via a conduit pipe, a diverging pipe and a branch pipe. The confi
A gas fire-extinguishing apparatus according to an embodiment of the invention is configured such that a silencer is disposed on an ejection head which ejects fire-extinguishing gas supplied from a fire-extinguishing gas supply source via a conduit pipe, a diverging pipe and a branch pipe. The configuration suppresses ejection sound caused by an ejection flow of the fire-extinguishing gas.
대표청구항▼
1. A gas fire-extinguishing apparatus, comprising: an ejection head having a nozzle section which ejects high-pressure fire-extinguishing gas to a space;a conduit pipe which is connected to the ejection head and guides high-pressure fire-extinguishing gas to the ejection head;a fire-extinguishing ga
1. A gas fire-extinguishing apparatus, comprising: an ejection head having a nozzle section which ejects high-pressure fire-extinguishing gas to a space;a conduit pipe which is connected to the ejection head and guides high-pressure fire-extinguishing gas to the ejection head;a fire-extinguishing gas supply source which supplies the high-pressure fire-extinguishing gas to the conduit pipe; anda silencer which is detachably mounted on an exterior peripheral surface of the ejection head and attenuates sound caused by ejection of the fire-extinguishing gas from the nozzle section, wherein the silencer comprises a cylindrical peripheral wall, an end wall formed at one end in an axial direction of the peripheral wall to be perpendicular to an axis of the peripheral wall, and a mounting section integrally formed on the cylindrical peripheral wall of the silencer, and a sound absorption material fills substantially an entire inner space defined by the peripheral wall, the end wall and the mounting section, the silencer and the ejection head being threadably engaged with each other through threading on the mounting section of the silencer and threading on the exterior peripheral surface of the ejection head, and wherein the silencer comprisesa plurality of vent holes which penetrate the end wall in a thickness direction thereof and the mounting section is detachably formed on the ejection head, and the mounting section has threads formed on an inner and an outer peripheral surface thereof. 2. The gas fire-extinguishing apparatus of claim 1, wherein the sound absorption material which is accommodated in the inner space defined by the peripheral wall, the end wall and the ejection head, is made of a porous metal. 3. A structure having a space containing an apparatus in a building, comprising: an ejection head which faces the space from a surface including any of a ceiling or a wall defining the space, and ejects a high-pressure fire-extinguishing gas from a fire-extinguishing gas supply source; anda silencer which is detachably mounted on an exterior peripheral surface of the ejection head and includes a sound absorption material which expands the fire-extinguishing gas immediately after being ejected from the ejection head to the space to decelerate and spread the fire-extinguishing gas rapidly and thereby the sound absorption material prevents a shock wave from being generated and ejects the high-pressure fire-extinguishing gas to the space therethrough, the silencer and the ejection head being threadably engaged with each other through threading on a mounting section of the silencer and threading on the exterior peripheral surface of the ejection head, wherein the silencer comprisesa plurality of vent holes which penetrate an end wall of the silencer in a thickness direction thereof and the mounting section is detachably formed on the ejection head and integrally formed on a cylindrical peripheral wall of the silencer, and the mounting section has threads formed on an inner and an outer peripheral surface thereof. 4. A gas fire-extinguishing method comprising steps of: preparing a gas fire-extinguishing apparatus having an ejection head disposed in a structure having a space in a building, facing the space from a surface including any of a ceiling or a wall defining the space, and ejecting a high-pressure fire-extinguishing gas from a fire-extinguishing gas supply source when a fire occurs,a silencer having a plurality of vent holes which penetrate an end wall of the silencer in a thickness direction thereof, the silencer being detachably mounted on an exterior peripheral surface of the ejection head and including a sound absorption material to eject the high-pressure fire-extinguishing gas from the ejection head to the space to decrease 02 concentration within the space and thereby the fire is extinguished,the silencer and the ejection head being threadably engaged with each other through threading on a mounting section of the silencer and threading on the exterior peripheral surface of the ejection head and the mounting section being detachably formed on the ejection head and integrally formed on a cylindrical peripheral wall of the silencer, and the mounting section has threads formed on an inner and an outer peripheral surface thereof; andcausing the sound absorption material to expand the fire-extinguishing gas immediately after being ejected from the ejection head to the space to decelerate and spread the fire-extinguishing gas rapidly and thereby the sound absorption material prevents a shock wave from being generated. 5. A gas fire-extinguishing method comprising steps of: disposing an ejection head in a structure having a space in a building, facing the space from a surface including any of a ceiling or a wall defining the space;disposing a silencer detachably on an exterior peripheral surface of the ejection head such that the silencer and the ejection head are threadably engaged with each other through threading on a mounting section of the silencer and threading on the exterior peripheral surface of the ejection head, the mounting section being detachably formed on the ejection head and integrally formed on a cylindrical peripheral wall of the silencer, and the mounting section having threads formed on an inner and an outer peripheral surface thereof, the silencer including a plurality of vent holes which penetrate an end wall of the silencer in a thickness direction thereof and a sound absorption material;ejecting a high-pressure fire-extinguishing gas from the ejection head when a fire occurs;ejecting the high-pressure fire-extinguishing gas from the ejection head to the space to decrease 02 concentration within the space and thereby the fire is extinguished; andcausing the sound absorption material to expand the fire-extinguishing gas immediately after being ejected from the ejection head to the space to decelerate and spread the fire-extinguishing gas rapidly and thereby the sound absorption material prevents a shock wave from being generated. 6. A gas fire-extinguishing apparatus, comprising: an ejection head disposed in a structure having a space in a building, and facing the space from a surface including any of a ceiling or a wall defining the space, ejecting high-pressure fire-extinguishing gas from a fire-extinguishing gas supply source; anda silencer detachably mounted on an exterior peripheral surface of the ejection head to eject the high-pressure fire-extinguishing gas from the ejection head to the space, the silencer including a plurality of vent holes which penetrate an end wall of the silencer in a thickness direction thereof and a sound absorption material expanding the fire-extinguishing gas immediately after being ejected from the ejection head to decelerate and to spread the fire-extinguishing gas rapidly and thereby the sound absorption material prevents a shock wave from being generated, and the fire-extinguishing gas from the silencer decreases 02 concentration within the space to extinguish a fire,the silencer and the ejection head being threadably engaged with each other through threading on a mounting section of the silencer and threading on the exterior peripheral surface of the ejection head, the mounting section being detachably formed on the ejection head and integrally formed on a cylindrical peripheral wall of the silencer, and the mounting section having threads formed on an inner and an outer peripheral surface thereof. 7. A gas fire-extinguishing apparatus, comprising: an ejection head disposed in a structure having a space in a building, and facing the space from a surface including any of a ceiling or a wall defining the space, ejecting high-pressure fire-extinguishing gas from a fire-extinguishing gas supply source; anda silencer detachably mounted on an exterior peripheral surface of the ejection head including a plurality of vent holes which penetrate an end wall of the silencer in a thickness direction thereof and a sound absorption material expanding the fire-extinguishing gas immediately after being ejected from the ejection head to decelerate and to spread the fire-extinguishing gas rapidly, to prevent a shock wave from being generated, the fire-extinguishing gas from the sound absorption material decreasing 02 concentration within the space to extinguish a fire,the silencer and the ejection head being threadably engaged with each other through threading on a mounting section of the silencer and threading on the exterior peripheral surface of the ejection head, the mounting section being detachably formed on the ejection head and integrally formed on a cylindrical peripheral wall of the silencer, and the mounting section having threads formed on an inner and an outer peripheral surface thereof. 8. The gas fire-extinguishing apparatus of claim 7, wherein the sound absorption material is disposed to extend in a direction perpendicular to an axis of a nozzle hole which is formed in the ejection head and ejects the high-pressure fire-extinguishing gas. 9. The gas fire-extinguishing apparatus of claim 8, wherein the sound absorption material is configured by a laminate disposed downstream in a fire-extinguishing gas ejection direction of the nozzle hole. 10. The gas fire-extinguishing apparatus of claim 9, wherein the sound absorption material is made of the porous metal. 11. The gas fire-extinguishing apparatus of claim 7, wherein the fire-extinguishing gas is an inert gas selected from the group consisting of inert gas and halogen gas. 12. A gas fire-extinguishing apparatus, comprising: an ejection head having a nozzle section which ejects high-pressure fire-extinguishing gas to a space;a conduit pipe which is connected to the ejection head and guides high-pressure fire-extinguishing gas to the ejection head;a fire-extinguishing gas supply source which supplies the high-pressure fire-extinguishing gas to the conduit pipe;a silencer which is detachably mounted on an exterior peripheral surface of the ejection head and attenuates sound caused by ejection of the fire-extinguishing gas from the nozzle section, wherein the silencer comprisesa mounting section detachably formed on the ejection head and integrally formed on a cylindrical peripheral wall of the silencer,an end wall disposed to be spaced downstream from the ejection head in an axial direction of the ejection head and extending to be perpendicular to the axial direction of the ejection head,a plurality of vent holes which penetrate the end wall in a thickness direction thereof, and a sound absorption material secured between the ejection head and the end wall, the silencer and the ejection head being threadably engaged with each other through threading on the mounting section of the silencer and threading on the exterior peripheral surface of the ejection head, and the mounting section having threads formed on an inner and an outer peripheral surface thereof.
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이 특허에 인용된 특허 (10)
Silvers, Robert, Asymmetric firearm silencer with coaxial elements.
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