JP6840210B2 - Gas fire extinguishing equipment and its manufacturing method - Google Patents

Gas fire extinguishing equipment and its manufacturing method Download PDF

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JP6840210B2
JP6840210B2 JP2019185825A JP2019185825A JP6840210B2 JP 6840210 B2 JP6840210 B2 JP 6840210B2 JP 2019185825 A JP2019185825 A JP 2019185825A JP 2019185825 A JP2019185825 A JP 2019185825A JP 6840210 B2 JP6840210 B2 JP 6840210B2
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fire extinguishing
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extinguishing agent
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JP2020000927A (en
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秀晃 後藤
秀晃 後藤
浩一郎 溝口
浩一郎 溝口
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Air Water Safety Service Inc
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Description

この発明はガス系消火設備に関するものである。 The present invention relates to gas-based fire extinguishing equipment.

従来、ガス系消火設備は、たとえば特開２０１４−１０８１８５号公報（特許文献１）に開示されている。 Conventionally, gas-based fire extinguishing equipment is disclosed in, for example, Japanese Patent Application Laid-Open No. 2014-108185 (Patent Document 1).

特開２０１４−１０８１８５号公報Japanese Unexamined Patent Publication No. 2014-108185

従来のガス系消火設備では防護区画から消火剤ガスを十分に排出できないという問題があった。そこで、この発明は上記の問題点を解決するためになされたものであり、防護区画から消火剤ガスを排出しやすいガス系消火設備を提供することを目的とするものである。 The conventional gas-based fire extinguishing equipment has a problem that the fire extinguishing agent gas cannot be sufficiently discharged from the protected area. Therefore, the present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a gas-based fire extinguishing system that easily discharges a fire extinguishing agent gas from a protected area.

この発明に従ったガス系消火設備は、建物内の防護区画から消火剤ガスを排出するための第一ダクトおよび第二ダクトを備え、第一ダクトは建物側面から排気し、第二ダクトは建物上面から排気する。 The gas-based fire extinguishing equipment according to the present invention includes a first duct and a second duct for exhausting the fire extinguishing agent gas from the protected area in the building, the first duct exhausts from the side of the building, and the second duct exhausts from the side of the building. Exhaust from the top.

このように構成されたガス系消火設備では、第一ダクトは建物側面から排気し、第二ダクトは建物上面から排気する。そのため建物上面側が強風環境下でも建物側面の第一ダクトから消火剤ガスを排気でき、建物側面側が強風環境下でも建物上面の第二ダクトから消火剤ガスを排気できる。その結果、防護区画から消火剤ガスを排出しやすい。なお、建物側面とは建物の下部から上部に延びる面をいう。建物の上面とは、上記の側面の上側に設けられる面をいう。 In the gas-based fire extinguishing system configured in this way, the first duct exhausts air from the side surface of the building, and the second duct exhausts air from the upper surface of the building. Therefore, the fire extinguishing agent gas can be exhausted from the first duct on the side of the building even when the upper surface side of the building is in a strong wind environment, and the fire extinguishing agent gas can be exhausted from the second duct on the upper surface of the building even when the side surface side of the building is in a strong wind environment. As a result, the fire extinguishing agent gas is easily discharged from the protected area. The side surface of the building means a surface extending from the lower part to the upper part of the building. The upper surface of the building means a surface provided on the upper side of the above side surface.

好ましくは、ガス系消火設備は、防護区画から煙を排出する排煙ダクトをさらに備え、第二ダクトは排煙ダクトに接続されて排煙ダクトを経由して建物上面から排気する。この場合、第二ダクトの長さを短くすることができる。 Preferably, the gas-based fire extinguishing equipment further includes a smoke exhaust duct for exhausting smoke from the protected area, and the second duct is connected to the smoke exhaust duct and exhausts from the upper surface of the building via the smoke exhaust duct. In this case, the length of the second duct can be shortened.

好ましくは、第二ダクトが排煙ダクトに接続される部分よりも排煙ダクトの上流側に設けられた送風機をさらに備える。この場合、煙を排出する工程では送風機を駆動させる。送風機は第二ダクトが排煙ダクトに接続される部分よりも排煙ダクトの上流側に設けられるため、送風機が故障したとしても第二ダクトから排煙ダクトを経由して消火剤ガスを排出することができる。 Preferably, a blower provided on the upstream side of the smoke exhaust duct is further provided than the portion where the second duct is connected to the smoke exhaust duct. In this case, the blower is driven in the process of discharging smoke. Since the blower is installed on the upstream side of the smoke exhaust duct from the part where the second duct is connected to the smoke exhaust duct, even if the blower fails, the fire extinguishing agent gas is discharged from the second duct via the smoke exhaust duct. be able to.

好ましくは、ガス系消火設備は、第二ダクトが排煙ダクトに接続される部分よりも排煙ダクトの下流側に設けられた送風機と、送風機をバイパスするように排煙ダクトに設けられたバイパス路をさらに備える。この場合、バイパス路が設けられるため、送風機が故障したとしても第二ダクトから排煙ダクトを経由して消火剤ガスを排出することができる。 Preferably, the gas-based fire extinguishing equipment includes a blower provided on the downstream side of the smoke exhaust duct from the portion where the second duct is connected to the smoke exhaust duct, and a bypass provided on the smoke exhaust duct so as to bypass the blower. Further prepare the road. In this case, since the bypass path is provided, the fire extinguishing agent gas can be discharged from the second duct via the smoke exhaust duct even if the blower fails.

好ましくは、消火剤ガスが防護区画に導入されると送風機を停止される制御部をさらに備える。 Preferably, it further comprises a control unit that shuts off the blower when the fire extinguishing agent gas is introduced into the protected area.

好ましくは、ガス系消火設備は、建物の上面に設けられて第二ダクトの出口を覆う防風装置をさらに備える。 Preferably, the gas-based fire extinguishing system is further provided with a windbreak device provided on the upper surface of the building to cover the outlet of the second duct.

この発明に従えば、防護区画から消火剤ガスを確実に排気することが可能なガス系消火設備を提供することができる。 According to the present invention, it is possible to provide a gas-based fire extinguishing system capable of reliably exhausting a fire extinguishing agent gas from a protected area.

実施の形態１に従ったガス系消火設備の模式図である。It is a schematic diagram of the gas-based fire extinguishing equipment according to the first embodiment. 図１中のＩＩ−ＩＩ線に沿った断面図である。It is sectional drawing along the line II-II in FIG. 建物に設けられた実施の形態１に従ったガス系消火設備の模式図である。It is a schematic diagram of the gas-based fire extinguishing equipment according to the first embodiment provided in the building. 建物上面の一例を示す図である。It is a figure which shows an example of the upper surface of a building. 建物上面の一例を示す図である。It is a figure which shows an example of the upper surface of a building. 建物に設けられた実施の形態２に従ったガス系消火設備の模式図である。It is a schematic diagram of the gas-based fire extinguishing equipment according to the second embodiment provided in the building. 建物に設けられた実施の形態３に従ったガス系消火設備の模式図である。It is a schematic diagram of the gas-based fire extinguishing equipment according to the third embodiment provided in the building. 建物に設けられた実施の形態４に従ったガス系消火設備の模式図である。It is a schematic diagram of the gas-based fire extinguishing equipment according to the fourth embodiment provided in the building. 建物に設けられた実施の形態５に従ったガス系消火設備の模式図である。It is a schematic diagram of the gas-based fire extinguishing equipment according to the fifth embodiment provided in the building.

以下、この発明の実施の形態について、図面を参照して説明する。以下の実施の形態では同一または相当する部分については同一の参照符号を付し、その説明については繰り返さない。また、各実施の形態を組み合わせることも可能である。 Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the same or corresponding parts are designated by the same reference numerals, and the description thereof will not be repeated. It is also possible to combine each embodiment.

（実施の形態１）
本発明者は、従来の問題点、すなわち、ガス系消火設備において消火剤ガスの排出において排出が困難となるという問題について分析した。その結果、建物の外部が強風雰囲気であれば消火剤ガスを排出することが困難になること、建物の上面と側面の両方において強風となることは稀であることを見出した。 (Embodiment 1)
The present inventor has analyzed a conventional problem, that is, a problem that it is difficult to discharge a fire extinguishing agent gas in a gas-based fire extinguishing system. As a result, it was found that if the outside of the building has a strong wind atmosphere, it becomes difficult to discharge the fire extinguishing agent gas, and it is rare that strong winds occur on both the upper surface and the side surface of the building.

そのため、建物の側面から消火剤ガスを排気する第一ダクトと、建物の上面から消火剤ガスを排気する第二ダクトとを設けることで、上記問題を解決できることを見出した。 Therefore, it has been found that the above problem can be solved by providing a first duct for exhausting the fire extinguishing agent gas from the side surface of the building and a second duct for exhausting the fire extinguishing agent gas from the upper surface of the building.

図１は、実施の形態１に従ったガス系消火設備の模式図である。図２は、図１中のＩＩ−ＩＩ線に沿った断面図である。主として図１および図２で示すように、ガス系消火設備９０は、防護区画１内へ消火剤ガスを送る配管３と、防護区画１に接続されて消火剤ガスを排出するための第一ダクト２および第二ダクト１０２とを備える。 FIG. 1 is a schematic view of a gas-based fire extinguishing system according to the first embodiment. FIG. 2 is a cross-sectional view taken along the line II-II in FIG. As mainly shown in FIGS. 1 and 2, the gas-based fire extinguishing equipment 90 includes a pipe 3 for sending the fire extinguishing agent gas into the protected area 1 and a first duct connected to the protected area 1 for discharging the fire extinguishing agent gas. 2 and a second duct 102 are provided.

防護区画１は、ビルなどの建物２００に設けられる部屋である。電子機器が設けられている部屋では、消火のために水を用いることができず、消火剤ガスを用いて消火を行う。噴射ノズル４から消火剤ガスを防護区画１に放出して、不活性の消火剤ガスを防護区画１に充満させて酸素濃度を減少させることで消火することが可能である。消火剤ガスとしては、窒素、アルゴンなどの不活性ガスおよびハロゲン系のガスが用いられる。 The protected section 1 is a room provided in a building 200 such as a building. In rooms where electronic devices are installed, water cannot be used to extinguish a fire, and a fire extinguishing agent gas is used to extinguish the fire. It is possible to extinguish a fire by discharging the fire extinguishing agent gas from the injection nozzle 4 to the protective compartment 1 and filling the protective compartment 1 with the inert fire extinguishing agent gas to reduce the oxygen concentration. As the fire extinguishing agent gas, an inert gas such as nitrogen or argon or a halogen-based gas is used.

第一ダクト２および第二ダクト１０２は、防護区画１の消火剤ガスを防護区画１から放出するためのガス経路である。第一ダクト２および第二ダクト１０２は、中空であり角型および丸型のいずれであってもよい。防護区画１の避圧口１ａ，１０１ａで第一ダクト２および第二ダクト１０２の端部には、ダンパ１２，１１２が設けられており、ダンパ１２，１１２が開閉することで第一ダクト２および第二ダクト１０２と防護区画１とが連通および遮断される。ダンパ１２，１１２は実線で記載されている位置から点線で記載されて
いる位置まで回動可能である。この実施の形態では防護区画１に２本のダクトのみが設けられているが、３本以上のダクトが設けられていてもよい。 The first duct 2 and the second duct 102 are gas paths for discharging the fire extinguishing agent gas of the protected compartment 1 from the protected compartment 1. The first duct 2 and the second duct 102 are hollow and may be square or round. Dampers 12 and 112 are provided at the ends of the first duct 2 and the second duct 102 at the pressure relief ports 1a and 101a of the protection section 1, and the first duct 2 and the first duct 2 and the second duct 102 are opened and closed by opening and closing the dampers 12 and 112. The second duct 102 and the protection compartment 1 are communicated and cut off. The dampers 12 and 112 can rotate from the position indicated by the solid line to the position indicated by the dotted line. In this embodiment, the protection zone 1 is provided with only two ducts, but three or more ducts may be provided.

第一ダクト２は、入口（避圧口１ａ）から出口２ａまで延びている。第二ダクト１０２は入口（避圧口１０１ａ）から出口１０２ａまで延びている。 The first duct 2 extends from the inlet (pressure relief port 1a) to the outlet 2a. The second duct 102 extends from the inlet (pressure relief port 101a) to the outlet 102a.

配管３は、防護区画１外に配置されているガス貯蔵容器５から防護区画１へ消火剤ガスを送るための経路である。ガス貯蔵容器５には、減圧弁（圧力調整器）５０が設けられており、減圧弁５０を通過した消火剤ガスが配管３および噴射ノズル４を経由して防護区画１へ放出される。 The pipe 3 is a route for sending the fire extinguishing agent gas from the gas storage container 5 arranged outside the protection compartment 1 to the protection compartment 1. The gas storage container 5 is provided with a pressure reducing valve (pressure regulator) 50, and the fire extinguishing agent gas that has passed through the pressure reducing valve 50 is discharged to the protective compartment 1 via the pipe 3 and the injection nozzle 4.

複数のガス貯蔵容器５に集合管１７が接続されている。集合管１７には、各々のガス貯蔵容器５から消火剤ガスが供給される。集合管１７、減圧弁５０またはガス貯蔵容器５のいずれかには、ガス貯蔵容器５から集合管１７への消火剤ガスの供給を制御する制御部１５が接続されている。この実施の形態では、複数のガス貯蔵容器５を用いているが、１つのみのガス貯蔵容器５を用いてもよい。この場合、集合管１７は不要である。ガス貯蔵容器５に配管３が接続される。 A collecting pipe 17 is connected to a plurality of gas storage containers 5. Fire extinguishing agent gas is supplied to the collecting pipe 17 from each gas storage container 5. A control unit 15 that controls the supply of fire extinguishing agent gas from the gas storage container 5 to the collecting pipe 17 is connected to any of the collecting pipe 17, the pressure reducing valve 50, or the gas storage container 5. In this embodiment, a plurality of gas storage containers 5 are used, but only one gas storage container 5 may be used. In this case, the collecting pipe 17 is unnecessary. The pipe 3 is connected to the gas storage container 5.

図３は、建物に設けられた実施の形態１に従ったガス系消火設備の模式図である。図３で示すように、建物２００の側面２０１に第一ダクト２の出口２ａが設けられる。建物２００の上面２０２に第二ダクト１０２の出口１０２ａが設けられる。 FIG. 3 is a schematic view of a gas-based fire extinguishing system according to the first embodiment provided in the building. As shown in FIG. 3, an outlet 2a of the first duct 2 is provided on the side surface 201 of the building 200. The outlet 102a of the second duct 102 is provided on the upper surface 202 of the building 200.

建物２００には、第一ダクト２および第二ダクト１０２とは別に排煙ダクト３０１が設けられている。排煙ダクト３０１は、建物２００の側面２０１および上面２０２のいずれから煙を排出してもよい。排煙ダクト３０１は火災時に発生する煙を排出する。 The building 200 is provided with a smoke exhaust duct 301 separately from the first duct 2 and the second duct 102. The smoke exhaust duct 301 may exhaust smoke from either the side surface 201 or the top surface 202 of the building 200. The smoke exhaust duct 301 exhausts smoke generated in the event of a fire.

図４および図５は、建物上面の一例を示す図である。図４で示すように上面２０２が段差を有していてもよい。上面２０２は、第一面２０２ａおよび第二面２０２ｂを有しており、第一面２０２ａおよび第二面２０２ｂのいずれもが水平面である。第一面２０２ａよりも低い部分に第二面２０２ｂが設けられている。第二面２０２ｂに出口が設けられる。第一面２０２ａと第二面２０２ｂを比較すると、第二面２０２ｂは強風環境下にさらされにくい。その結果、第二面２０２ｂに出口を設けることが好ましい。 4 and 5 are views showing an example of the upper surface of the building. As shown in FIG. 4, the upper surface 202 may have a step. The upper surface 202 has a first surface 202a and a second surface 202b, and both the first surface 202a and the second surface 202b are horizontal planes. The second surface 202b is provided at a portion lower than the first surface 202a. An exit is provided on the second surface 202b. Comparing the first surface 202a and the second surface 202b, the second surface 202b is less likely to be exposed to a strong wind environment. As a result, it is preferable to provide an outlet on the second surface 202b.

図５で示すように、上面２０２が傾斜していてもよい。上面２０２が傾斜面であれば、上面２０２が水平面である場合（図３参照）と比較して、上面２０２において特定の方向からの風が弱まる。その結果、出口１０２ａから消火剤ガスを排出しやすくなる。 As shown in FIG. 5, the upper surface 202 may be inclined. If the upper surface 202 is an inclined surface, the wind from a specific direction is weakened on the upper surface 202 as compared with the case where the upper surface 202 is a horizontal plane (see FIG. 3). As a result, the fire extinguishing agent gas is easily discharged from the outlet 102a.

このように構成されたガス系消火設備９０では、建物２００の側面２０１に設けられた出口２ａおよび上面２０２に設けられた出口１０２ａから消火剤ガス（例えばＮ２）を放出する。建物２００が強風環境下におかれている場合であっても、側面２０１および上面２０２のいずれもが強風環境下にあることは少ない。その結果、強風環境にない出口から消火剤ガスを排出することができるので、防護区画１内の消火剤ガスを第一ダクト２および第二ダクト１０２のいずれかから消火剤ガスを排出することが可能である。 In such configured gas system extinguishing systems 90, to release the extinguishing agent gas (e.g. N 2) from an outlet 102a which is provided at the outlet 2a and an upper surface 202 provided on the side surface 201 of the building 200. Even when the building 200 is placed in a strong wind environment, it is unlikely that both the side surface 201 and the top surface 202 are in a strong wind environment. As a result, the fire extinguishing agent gas can be discharged from an outlet that is not in a strong wind environment, so that the fire extinguishing agent gas in the protected section 1 can be discharged from either the first duct 2 or the second duct 102. It is possible.

（実施の形態２）
図６は、建物に設けられた実施の形態２に従ったガス系消火設備の模式図である。図６で示すように、実施の形態２に従ったガス系消火設備では、第二ダクト１０２が排煙ダクト３０１に接続されている点で、実施の形態１に従ったガス系消火設備９０と異なる。 (Embodiment 2)
FIG. 6 is a schematic view of a gas-based fire extinguishing system according to the second embodiment provided in the building. As shown in FIG. 6, in the gas-based fire extinguishing equipment according to the second embodiment, the gas-based fire extinguishing equipment 90 according to the first embodiment is connected to the smoke exhaust duct 301 in that the second duct 102 is connected to the smoke exhaust duct 301. different.

なお、この実施の形態は排煙ダクト３０１の出口３０１ａは建物２００の上面２０２に
設けられているが、必ずしも上面２０２に設けられている必要はない。建物２００側面２０１に出口３０１ａが設けられていてもよい。 In this embodiment, the outlet 301a of the smoke exhaust duct 301 is provided on the upper surface 202 of the building 200, but it does not necessarily have to be provided on the upper surface 202. The exit 301a may be provided on the side surface 201 of the building 200.

排煙ダクト３０１内を矢印３０１ｂで示すように煙が流れる。第二ダクト１０２内を矢印１０２ｂで示すように消火剤ガスが流れる。ガス系消火設備９０は、防護区画１から煙を排出する排煙ダクト３０１をさらに備え、第二ダクト１０２は排煙ダクト３０１に接続されて排煙ダクト３０１を経由して建物２００の上面２０２から排気する。 Smoke flows through the smoke exhaust duct 301 as shown by the arrow 301b. A fire extinguishing agent gas flows through the second duct 102 as shown by an arrow 102b. The gas-based fire extinguishing equipment 90 further includes a smoke exhaust duct 301 for discharging smoke from the protection zone 1, and the second duct 102 is connected to the smoke exhaust duct 301 and is connected to the smoke exhaust duct 301 from the upper surface 202 of the building 200 via the smoke exhaust duct 301. Exhaust.

このように構成された実施の形態２に従ったガス系消火設備９０では、建物２００の上面２０２に排煙ダクト３０１の出口３０１ａが設けられている場合には、実施の形態１と同様の効果がある。さらに、第二ダクト１０２が排煙ダクト３０１に接続されるため、実施の形態１と比較して、第二ダクト１０２の長さを短くすることができる。 In the gas-based fire extinguishing system 90 according to the second embodiment configured as described above, when the outlet 301a of the smoke exhaust duct 301 is provided on the upper surface 202 of the building 200, the same effect as that of the first embodiment is obtained. There is. Further, since the second duct 102 is connected to the smoke exhaust duct 301, the length of the second duct 102 can be shortened as compared with the first embodiment.

建物２００の上面２０２に排煙ダクト３０１の出口が設けられていない場合であっても、実施の形態１と比較して、第二ダクト１０２の長さを短くすることができる。 Even when the outlet of the smoke exhaust duct 301 is not provided on the upper surface 202 of the building 200, the length of the second duct 102 can be shortened as compared with the first embodiment.

（実施の形態３）
図７は、建物に設けられた実施の形態３に従ったガス系消火設備の模式図である。図７で示すように、第二ダクト１０２の出口１０２ａには防風装置２５０が設けられている。防風装置２５０は、筒状の側面２５２と、側面２５２との間に隙間２５３を隔てて配置される上面２５１とを有する。隙間２５３から矢印１０２ｂで示すように消火剤ガスが排出される。なお、第一ダクト２は必ずしも設けられなくてもよい。ガス系消火設備９０は、建物２００の上面２０２に設けられて第二ダクト１０２の出口１０２ａを覆う防風装置２５０をさらに備える。 (Embodiment 3)
FIG. 7 is a schematic view of a gas-based fire extinguishing system according to the third embodiment provided in the building. As shown in FIG. 7, a windbreak device 250 is provided at the outlet 102a of the second duct 102. The windbreak device 250 has a tubular side surface 252 and an upper surface 251 arranged with a gap 253 between the side surface 252. The fire extinguishing agent gas is discharged from the gap 253 as shown by the arrow 102b. The first duct 2 does not necessarily have to be provided. The gas-based fire extinguishing system 90 is further provided with a windbreak device 250 provided on the upper surface 202 of the building 200 and covering the outlet 102a of the second duct 102.

このように構成された実施の形態３に従ったガス系消火設備では、出口１０２ａが防風装置２５０で覆われているため、上面２０２が強風環境下であっても、出口１０２ａが強風環境下にならないため、消火剤ガスを排出することが可能となる。なお、第一ダクト２が設けられていなくてもこの効果を奏することができる。 In the gas-based fire extinguishing system according to the third embodiment configured in this way, since the outlet 102a is covered with the windbreak device 250, the outlet 102a is in a strong wind environment even if the upper surface 202 is in a strong wind environment. Therefore, it is possible to discharge the fire extinguishing agent gas. It should be noted that this effect can be achieved even if the first duct 2 is not provided.

防風装置２５０の形状は、図７で示すものに限られず、出口１０２ａが強風の影響を受けることを防止できる形状であればよい。防風装置２５０は、出口１０２ａを覆い、防風装置２５０を構成する部材に隙間２５３が設けられていればよい。 The shape of the windbreak device 250 is not limited to that shown in FIG. 7, and may be any shape that can prevent the outlet 102a from being affected by strong winds. The windbreak device 250 may cover the outlet 102a and may be provided with a gap 253 in the member constituting the windbreak device 250.

（実施の形態４）
図８は、建物に設けられた実施の形態４に従ったガス系消火設備の模式図である。図８で示すように、実施の形態４に従ったガス系消火設備９０では、排煙ダクト３０１に送風機３１０が設けられている。送風機３１０の下流側に合流点１０９が設けられている。合流点１０９では、排煙ダクト３０１に第二ダクト１０２が接続されている。送風機３１０が駆動することで送風機３１０を経由して矢印３０１ｂで示す方向に煙が排出される。 (Embodiment 4)
FIG. 8 is a schematic view of a gas-based fire extinguishing system according to the fourth embodiment provided in the building. As shown in FIG. 8, in the gas-based fire extinguishing system 90 according to the fourth embodiment, the blower 310 is provided in the smoke exhaust duct 301. A confluence point 109 is provided on the downstream side of the blower 310. At the confluence 109, the second duct 102 is connected to the smoke exhaust duct 301. When the blower 310 is driven, smoke is discharged via the blower 310 in the direction indicated by the arrow 301b.

送風機３１０は制御部１５によって制御される。消火剤ガスが防護区画１に導入されたのちに送風機３１０を駆動させると、消火剤ガスが矢印３０１ｂで示すように排出される。これを防止するために、制御部１５は防護区画１に消火剤ガスが導入されると送風機３１０の運転を停止する。その結果、消火剤ガスは防護区画１に滞留し、余剰の消火剤ガスが第一ダクト２および第二ダクト１０２から排出される。なお、必ずしも第一ダクト２は設けられていなくてもよい。ガス系消火設備９０は、第二ダクト１０２が排煙ダクト３０１に接続される合流点１０９よりも排煙ダクト３０１の上流側に設けられた送風機３１０をさらに備える。 The blower 310 is controlled by the control unit 15. When the blower 310 is driven after the fire extinguishing agent gas is introduced into the protection zone 1, the fire extinguishing agent gas is discharged as shown by the arrow 301b. In order to prevent this, the control unit 15 stops the operation of the blower 310 when the fire extinguishing agent gas is introduced into the protection zone 1. As a result, the fire extinguishing agent gas stays in the protected section 1, and the excess fire extinguishing agent gas is discharged from the first duct 2 and the second duct 102. The first duct 2 does not necessarily have to be provided. The gas-based fire extinguishing system 90 further includes a blower 310 provided on the upstream side of the smoke exhaust duct 301 from the confluence 109 where the second duct 102 is connected to the smoke exhaust duct 301.

この実施の形態４でも、実施の形態２と同様に第二ダクト１０２を短くすることが可能である。さらに、合流点１０９が送風機３１０の下流側に設けられているため、送風機３１０が停止した場合であっても、防護区画１内の消火剤ガスを第二ダクト１０２および排煙ダクト３０１を経由して排出することができる。 In the fourth embodiment as well, the second duct 102 can be shortened as in the second embodiment. Further, since the merging point 109 is provided on the downstream side of the blower 310, even if the blower 310 is stopped, the fire extinguishing agent gas in the protection section 1 passes through the second duct 102 and the smoke exhaust duct 301. Can be discharged.

（実施の形態５）
図９は、建物に設けられた実施の形態５に従ったガス系消火設備の模式図である。図９で示すように、実施の形態５に従ったガス系消火設備９０では、排煙ダクト３０１に送風機３１０が設けられている。送風機３１０の上流側に合流点１０９が設けられている。合流点１０９では、排煙ダクト３０１に第二ダクト１０２が接続されている。送風機３１０と並列にバイパス路３１１が設けられている。送風機３１０が駆動することで送風機３１０を経由して矢印３０１ｂで示す方向に煙が排出される。 (Embodiment 5)
FIG. 9 is a schematic view of a gas-based fire extinguishing system according to the fifth embodiment provided in the building. As shown in FIG. 9, in the gas-based fire extinguishing system 90 according to the fifth embodiment, the blower 310 is provided in the smoke exhaust duct 301. A confluence 109 is provided on the upstream side of the blower 310. At the confluence 109, the second duct 102 is connected to the smoke exhaust duct 301. A bypass path 311 is provided in parallel with the blower 310. When the blower 310 is driven, smoke is discharged via the blower 310 in the direction indicated by the arrow 301b.

送風機３１０は制御部１５によって制御される。消火剤ガスが防護区画１に導入されたのちに送風機３１０を駆動させると、消火剤ガスが矢印３０１ｂで示すように排出される。これを防止するために、制御部１５は防護区画１に消火剤ガスが導入されると送風機３１０の運転を停止する。その結果、消火剤ガスは防護区画１に滞留し、余剰の消火剤ガスが第一ダクト２、第二ダクト１０２およびバイパス路３１１から排出される。なお、必ずしも第一ダクト２は設けられていなくてもよい。ガス系消火設備９０は、第二ダクト１０２が排煙ダクト３０１に接続される合流点１０９よりも排煙ダクト３０１の下流側に設けられた送風機３１０と、送風機３１０をバイパスするように排煙ダクト３０１に設けられたバイパス路３１１をさらに備える。 The blower 310 is controlled by the control unit 15. When the blower 310 is driven after the fire extinguishing agent gas is introduced into the protection zone 1, the fire extinguishing agent gas is discharged as shown by the arrow 301b. In order to prevent this, the control unit 15 stops the operation of the blower 310 when the fire extinguishing agent gas is introduced into the protection zone 1. As a result, the fire extinguishing agent gas stays in the protected section 1, and the excess fire extinguishing agent gas is discharged from the first duct 2, the second duct 102, and the bypass path 311. The first duct 2 does not necessarily have to be provided. In the gas-based fire extinguishing equipment 90, the smoke exhaust duct is provided so as to bypass the blower 310 and the blower 310 provided on the downstream side of the smoke exhaust duct 301 from the confluence 109 where the second duct 102 is connected to the smoke exhaust duct 301. A bypass path 311 provided in 301 is further provided.

この実施の形態５でも、実施の形態２と同様に第二ダクト１０２を短くすることが可能である。さらに、合流点１０９が送風機３１０の上流側に設けられているが、バイパス路３１１が存在するため、送風機３１０が停止した場合であっても、防護区画１内の消火剤ガスを第二ダクト１０２、排煙ダクト３０１およびバイパス路３１１を経由して排出することができる。 Also in the fifth embodiment, the second duct 102 can be shortened as in the second embodiment. Further, although the merging point 109 is provided on the upstream side of the blower 310, since the bypass path 311 exists, even if the blower 310 is stopped, the fire extinguishing agent gas in the protection section 1 is discharged to the second duct 102. , Can be discharged via the smoke exhaust duct 301 and the bypass path 311.

今回開示された実施の形態はすべての点で例示であって制限的なものではないと考えられるべきである。本発明の範囲は上記した説明ではなくて特許請求の範囲によって示され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。 It should be considered that the embodiments disclosed this time are exemplary in all respects and not restrictive. The scope of the present invention is shown by the scope of claims rather than the above description, and it is intended to include all modifications within the meaning and scope equivalent to the scope of claims.

この発明は、ガス系消火設備の分野において利用することができる。 The present invention can be used in the field of gas-based fire extinguishing equipment.

１ 防護区画、１ａ，１０１ａ 避圧口、２ 第一ダクト、２ａ，１０２ａ 出口、３
配管、４ 噴射ノズル、５ ガス貯蔵容器、１２，１１２ ダンパ、１５ 制御部、１６ 調整弁、１７ 集合管、５０ 減圧弁、９０ ガス系消火設備、１０２ 第二ダクト、２００ 建物、２０１ 側面、２０２ 上面、３０１ 排煙ダクト、３１０ 送風機、３１１ バイパス路。 1 Protective compartment, 1a, 101a pressure relief port, 2 first duct, 2a, 102a outlet, 3
Piping, 4 injection nozzle, 5 gas storage container, 12,112 damper, 15 control unit, 16 control valve, 17 collecting pipe, 50 pressure reducing valve, 90 gas fire extinguishing equipment, 102 second duct, 200 building, 201 side, 202 Top surface, 301 smoke exhaust duct, 310 blower, 311 bypass path.

Claims (2)

建物内の防護区画から消火剤ガスを排出するための第一ダクトおよび第二ダクトを備え、
前記防護区画は第一避圧口および前記第一避圧口とは異なる位置に設けられた第二避圧口とを有し、
前記第一ダクトは前記第一避圧口に接続され、前記第二ダクトは前記第二避圧口に接続され、
前記第一ダクトおよび前記第二ダクトの端部には、ダンパが設けられており、前記ダンパが開閉することで前記第一ダクトおよび前記第二ダクトと前記防護区画とが連通および遮断され、
前記第一ダクトは建物側面から排気し、前記第二ダクトは建物上面から排気する、ガス系消火設備。 Equipped with a first duct and a second duct for discharging fire extinguishing gas from the protected area in the building,
The protective section has a first refuge port and a second pressure relief port provided at a position different from that of the first pressure relief port.
The first duct is connected to the first pressure relief port, the second duct is connected to the second pressure relief port, and the second duct is connected to the second pressure relief port.
Dampers are provided at the ends of the first duct and the second duct, and when the damper opens and closes, the first duct, the second duct, and the protective section are communicated and cut off.
A gas-based fire extinguishing system in which the first duct exhausts from the side surface of the building and the second duct exhausts air from the upper surface of the building. 請求項１に記載のガス系消火設備の製造方法であって、
建物側面から排気するように建物に前記第一ダクトを設ける工程と、
建物上面から排気するように建物に前記第二ダクトを設ける工程とを備えた、ガス系消火設備の製造方法。 The method for manufacturing a gas-based fire extinguishing system according to claim 1.
The process of providing the first duct in the building so as to exhaust from the side of the building,
A method for manufacturing a gas-based fire extinguishing system, which comprises a step of providing the second duct in a building so as to exhaust air from the upper surface of the building.
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