JPH08141102A - Nitrogen-gas fire extinguishing equipment - Google Patents
Nitrogen-gas fire extinguishing equipmentInfo
- Publication number
- JPH08141102A JPH08141102A JP6312690A JP31269094A JPH08141102A JP H08141102 A JPH08141102 A JP H08141102A JP 6312690 A JP6312690 A JP 6312690A JP 31269094 A JP31269094 A JP 31269094A JP H08141102 A JPH08141102 A JP H08141102A
- Authority
- JP
- Japan
- Prior art keywords
- fire
- fire extinguishing
- gas
- extinguishing
- compartment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 229910001873 dinitrogen Inorganic materials 0.000 title claims abstract description 32
- 229960005419 nitrogen Drugs 0.000 title 1
- 239000007789 gas Substances 0.000 claims abstract description 48
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 25
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 34
- 229910002092 carbon dioxide Inorganic materials 0.000 description 17
- 239000001569 carbon dioxide Substances 0.000 description 17
- 229920004449 Halon® Polymers 0.000 description 7
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 239000011261 inert gas Substances 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009413 insulation Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000003444 anaesthetic effect Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- -1 halon gas Chemical compound 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、消火対象区画内に消火
剤を放出し、消火対象区画内の消火剤の濃度を消炎濃度
以上に維持することによって消火するようにしたガス系
消火設備に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a gas-based fire extinguishing facility for extinguishing a fire by releasing a fire extinguishing agent into a fire extinguishing target compartment and maintaining the concentration of the fire extinguishing agent in the fire extinguishing target compartment to be equal to or higher than the extinction concentration. It is a thing.
【０００２】[0002]
【従来の技術】従来、消火対象区画内に消火剤を放出
し、消火対象区画内の消火剤の濃度を消炎濃度以上に維
持することによって消火するようにしたガス系消火設備
として、消火剤に二酸化炭素やハロンガス等の不活性ガ
スを使用するようにしたものが実用化されている。2. Description of the Related Art Conventionally, a fire extinguisher has been used as a gas-based fire extinguisher equipment that extinguishes a fire by extinguishing the fire extinguishing agent in the fire extinguishing target compartment and maintaining the concentration of the fire extinguishing agent in the fire extinguishing target compartment above the extinction concentration Those using an inert gas such as carbon dioxide or halon gas have been put into practical use.
【０００３】ところで、消火剤として二酸化炭素やハロ
ンガス等の不活性ガスを使用する場合、これらの消火剤
を加圧液化して高圧ガス容器からなる消火剤貯蔵容器に
充填された状態で消火設備内に保管しておき、火災の際
に、適宜の電気的手段又は空圧的手段を用いて、高圧ガ
ス容器の容器弁を開放することにより、二酸化炭素やハ
ロンガスを高圧ガス容器から配管を介して噴射ヘッドま
で送り、噴射ヘッドから消火対象区画内に放出するよう
にしている。このとき、二酸化炭素やハロンガス等の不
活性ガスは、噴射ヘッドまでは液体の状態で送られ、噴
射ヘッドから消火対象区画内に放出された瞬間に気化し
て気体の状態となり、消火対象区画内に充満して火災を
鎮圧する。By the way, when an inert gas such as carbon dioxide or halon gas is used as a fire extinguishing agent, these fire extinguishing agents are liquefied under pressure and filled in a fire extinguishing agent storage container composed of a high-pressure gas container in a fire extinguishing facility. In the event of a fire, open the container valve of the high-pressure gas container by using an appropriate electrical or pneumatic means to remove carbon dioxide or halon gas from the high-pressure gas container through a pipe. It is sent to the jet head and discharged from the jet head into the fire-extinguishing target compartment. At this time, the inert gas such as carbon dioxide or halon gas is sent in a liquid state up to the ejection head, and is vaporized and becomes a gas state at the moment when it is released from the ejection head into the fire extinguishing target compartment, and then in the fire extinguishing compartment To suppress the fire.
【０００４】そして、これらの二酸化炭素やハロンガス
等の不活性ガスを使用するガス系消火設備は、急速に火
災を鎮圧できること、消火剤による消火対象区画内の汚
染がほとんどないこと、電気の絶縁性を損なわないこ
と、消火剤が隙間から浸透して構造が複雑な消火対象に
対しても強力な消火効果を発揮できること、消火剤の経
年変化がなく長期に亘って一定の消火能力を有すること
等の利点を有することから、石油関連施設、電気関連施
設のみならず、一般の施設にも広く使用されている。The gas-based fire extinguishing equipment using the inert gas such as carbon dioxide and halon gas can suppress the fire rapidly, there is almost no pollution in the fire extinguishing target area by the fire extinguishing agent, and the electric insulation property. The fire extinguishing agent does not deteriorate, the fire extinguishing agent penetrates through the gap, and can exert a strong fire extinguishing effect even on a fire extinguishing object with a complicated structure.The extinguishing agent does not change over time and has a constant fire extinguishing ability. Therefore, it is widely used not only for petroleum related facilities and electric related facilities but also for general facilities.
【０００５】ところが、近年になって、オゾン層の破壊
に関する問題が世界的な規模で提起され、ハロンガス等
のハロゲン化炭化水素成分を含有する消火剤について
は、１９９４年１月に生産中止となり、事実上使用する
ことができなくなった。これにより、アルゴン等の高価
な希ガスを使用する特殊な消火設備を除くと、現在、ガ
ス系消火設備において使用されている消火剤は、二酸化
炭素のみであるということができる。However, in recent years, a problem concerning the destruction of the ozone layer has been raised on a global scale, and the extinguishing agent containing a halogenated hydrocarbon component such as halon gas was discontinued in January 1994. It has become virtually unusable. As a result, excluding special fire extinguishing equipment that uses expensive rare gas such as argon, it can be said that carbon dioxide is the only extinguishing agent currently used in gas fire extinguishing equipment.
【０００６】一方、この二酸化炭素を消火剤として使用
する消火設備についても、以下の問題点があることが知
られている。 (1) 消火時の消火対象区画内の二酸化炭素の設計濃度
は、約３５％であり、この濃度では、万一消火対象区画
内に人が存在していた場合、二酸化炭素の毒性（麻酔
性）により人命に係わる事態が発生するおそれがある。 (2) 二酸化炭素は、火災の際、噴射ヘッドまでは液体の
状態で送られ、噴射ヘッドから消火対象区画内に放出さ
れた瞬間に気化して気体の状態となるが、このとき、周
囲から気化熱を奪うため室内の空気の飽和蒸気圧が低下
し、空気中の水分が結露するとともに、静電気が発生す
る。これにより、室内は霧がかかった状態となり、人の
避難及び救出並びに消火作業の障害になるとともに、結
露及び静電気により電子機器の絶縁不良や故障が起こ
り、重大な二次災害が発生するおそれがある。 (3) 二酸化炭素は、密度が空気よりもはるかに大きいた
め、消火対象区画内に放出された二酸化炭素は、消火対
象区画内の下部に滞留し消火効果が低下するほか、消火
対象区画内の下部の開口部から外部へ散逸しやすい。 (4) 地球温暖化に関する問題が世界的な規模で提起され
ていることから、二酸化炭素もハロンガスと同様に、将
来的には使用が制限される可能性がある。On the other hand, it is known that the fire extinguishing equipment using this carbon dioxide as a fire extinguishing agent has the following problems. (1) When the fire is extinguished, the designed concentration of carbon dioxide in the fire extinguishing compartment is approximately 35%. At this concentration, if a person were present in the fire extinguishing compartment, the toxicity of carbon dioxide (anesthetic ) May cause a situation related to human life. (2) During a fire, carbon dioxide is sent in a liquid state up to the jet head, and is vaporized into a gas state at the moment it is released from the jet head into the fire-extinguishing target compartment. Since the heat of vaporization is taken away, the saturated vapor pressure of the air in the room is lowered, the moisture in the air is condensed, and static electricity is generated. As a result, the inside of the room will be fogged, hindering people's evacuation and rescue, and fire extinguishing work.In addition, dew condensation and static electricity may cause insulation failure and failure of electronic devices, which may cause a serious secondary disaster. is there. (3) Since the density of carbon dioxide is much higher than that of air, the carbon dioxide released into the fire-extinguishing target compartment stays in the lower part of the fire-extinguishing target compartment, reducing the fire-extinguishing effect, and It is easy to dissipate to the outside from the lower opening. (4) Since global warming issues have been raised on a global scale, carbon dioxide, like halon gas, may be restricted in future use.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、上記従来の
ガス系消火設備が有する多くの問題点を一挙に解決し、
人、施設及び地球環境のすべてに対して安全で、かつ消
火剤の安定供給に将来的にも問題のないガス系消火設備
を提供することを目的とする。SUMMARY OF THE INVENTION The present invention solves many problems of the above conventional gas fire extinguishing equipment at once.
It is an object of the present invention to provide a gas-based fire extinguishing facility that is safe for all of people, facilities and the global environment, and will not cause a problem in the stable supply of extinguishing agents in the future.
【０００８】[0008]
【課題を解決するための手段】上記目的を達成するた
め、本発明は、消火対象区画内に消火剤を放出し、該消
火対象区画内の消火剤の濃度を消炎濃度以上に維持する
ことによって消火するようにしたガス系消火設備におい
て、消火剤として窒素ガスを使用するようにしたことを
ことを要旨とする。In order to achieve the above object, the present invention is to release a fire extinguisher into a fire-extinguishing target compartment and maintain the concentration of the fire-extinguishing agent in the fire-extinguishing target compartment to be equal to or higher than the flame-extinguishing concentration. The gist is that nitrogen gas is used as an extinguishing agent in a gas-based fire extinguishing facility designed to extinguish a fire.
【０００９】[0009]
【作用】ガス系消火設備の消火剤として窒素ガスを使用
する利点は、以下のとおりである。 (1) 消火時の消火対象区画内の窒素ガスの設計濃度を二
酸化炭素の場合と同程度まで高めた場合、消火対象区画
内の酸素濃度は、約１４％にまで低下すると考えられる
が、３０分程度までの短時間の曝露の場合、酸素濃度が
約１２％以上あれば人体にはほとんど影響がないことが
報告されていること、また、窒素ガス自体には毒性がな
いことから、万一消火対象区画内に人が存在していて
も、余裕をもって退避することができ、二酸化炭素の場
合のように人命に係わる事態が発生することがない。 (2) 窒素ガスは、気体の状態で加圧して高圧ガス容器か
らなる消火剤貯蔵容器に充填された状態で消火設備内に
保管されているため、火災の際、噴射ヘッドから消火対
象区画内に放出されたとき、二酸化炭素の場合のように
周囲から気化熱を奪うことがないため空気中の水分が結
露することがなく、また、静電気が発生することもな
い。このため、室内の視界が悪化せず、人の避難及び救
出並びに消火作業を支障なく行うことができるととも
に、結露及び静電気の発生がないことから電子機器の絶
縁不良や故障が起こることがない。 (3) 窒素ガスは、密度が空気と近いため、消火対象区画
内に放出された窒素ガスは、消火対象区画内に偏りなく
行き渡り、強力な消火効果を発揮する。 (4) 窒素ガスは、空気の主成分であることから、地球環
境の点及び消火剤の安定供給の点で全く問題がない。[Advantages] The advantages of using nitrogen gas as a fire extinguishing agent for gas-based fire extinguishing equipment are as follows. (1) When the designed concentration of nitrogen gas in a fire-extinguishing target compartment is increased to the same level as in the case of carbon dioxide, the oxygen concentration in the fire-extinguishing target compartment is thought to drop to approximately 14%. In the case of short-term exposure up to about 10 minutes, it has been reported that if the oxygen concentration is about 12% or more, there is almost no effect on the human body, and nitrogen gas itself has no toxicity. Even if a person is present in the fire-extinguishing target compartment, it is possible to evacuate with plenty of space, and the situation of human life unlike the case of carbon dioxide does not occur. (2) Nitrogen gas is stored in the fire extinguishing equipment in a state where it is pressurized in a gaseous state and filled in a fire extinguishant storage container consisting of a high-pressure gas container. When it is released into the atmosphere, it does not take heat of vaporization from the surroundings as in the case of carbon dioxide, so that moisture in the air does not condense and static electricity does not occur. Therefore, the visibility in the room is not deteriorated, the evacuation and rescue of the person and the fire extinguishing work can be performed without any trouble, and since the dew condensation and the static electricity are not generated, the insulation failure or the failure of the electronic device does not occur. (3) Since the density of nitrogen gas is close to that of air, the nitrogen gas released into the fire-extinguishing target compartment spreads evenly in the fire-extinguishing target compartment, and exhibits a strong fire extinguishing effect. (4) Since nitrogen gas is the main component of air, there is no problem in terms of global environment and stable supply of extinguishant.
【００１０】[0010]
【実施例】以下、本発明を図示の実施例に基づいて説明
する。The present invention will be described below with reference to the illustrated embodiments.
【００１１】図１に、本発明の窒素ガス消火設備の第１
実施例を示す。FIG. 1 shows the first embodiment of the nitrogen gas fire extinguishing equipment of the present invention.
An example will be described.
【００１２】本実施例は、消火剤として窒素ガスを使用
したもので、窒素ガスを加圧して高圧ガス容器に充填し
た状態（本実施例では、３５℃において、１５０Ｋｇｆ
／平方ｃｍ）で消火設備内に保管することにより、消火
剤貯蔵容器１として利用する。消火設備内に保管する消
火剤貯蔵容器１の本数は、消火剤貯蔵容器１に充填、貯
蔵されている窒素ガスの総量が、火災の際、消火対象区
画６内の窒素ガスの濃度を消炎濃度以上に維持すること
ができる量となるように設定する。なお、消火対象区画
６内の窒素ガスの濃度を消炎濃度以上にしたときの消火
対象区画内の酸素濃度は、二酸化炭素の場合と同様、約
１４％にまで低下すると考えられる。In this embodiment, nitrogen gas is used as an extinguishing agent, and nitrogen gas is pressurized and filled in a high-pressure gas container (in this embodiment, 150 kgf at 35 ° C.).
It is used as the extinguishant storage container 1 by storing it in a fire extinguishing facility at a rate of 1 / square cm. The number of the extinguishant storage containers 1 stored in the fire extinguishing equipment is determined by the total amount of nitrogen gas filled and stored in the extinguishant storage container 1 when the fire extinguishes the concentration of the nitrogen gas in the extinguishing target compartment 6 The amount is set so that it can be maintained above. The oxygen concentration in the fire-extinguishing target compartment when the concentration of nitrogen gas in the fire-extinguishing compartment 6 is set to be equal to or higher than the flame-extinguishing concentration is considered to decrease to about 14% as in the case of carbon dioxide.
【００１３】各消火剤貯蔵容器１には、容器弁２を介し
て連結管３を接続し、さらに連結管３を１本の集合管４
に接続し、この集合管４を消火対象区画６まで延設した
主配管５に接続する。消火対象区画６まで延設した主配
管５を、消火対象区画６内に配設した枝管８に接続し、
この枝管８を消火対象区画６内の適所に複数個配設した
噴射ヘッド７に接続する。A connecting pipe 3 is connected to each extinguishant storage container 1 through a container valve 2, and the connecting pipe 3 is a collecting pipe 4.
Then, the collecting pipe 4 is connected to the main pipe 5 extending to the fire extinguishing target section 6. The main pipe 5 extending to the fire extinguishing target section 6 is connected to the branch pipe 8 arranged in the fire extinguishing target section 6,
The branch pipes 8 are connected to a plurality of jet heads 7 arranged at appropriate places in the fire extinguishing section 6.
【００１４】火災の際には、手動又は自動操作によっ
て、適宜の電気的手段又は空圧的手段を用いて、すべて
の消火剤貯蔵容器１の容器弁２を開放することにより、
消火剤貯蔵容器１から窒素ガスを、容器弁２、連結管
３、集合管４、主配管５及び枝管８を介して噴射ヘッド
７まで送り、噴射ヘッド７から消火対象区画６内に放出
するようにする。このとき、窒素ガスは、消火剤貯蔵容
器１に気体の状態で充填されているため、噴射ヘッド７
から消火対象区画内に放出されたとき、周囲から気化熱
を奪うことがないため空気中の水分が結露することがな
く、また、静電気が発生することもない。また、窒素ガ
スは、密度が空気と近いため、消火対象区画内に放出さ
れた窒素ガスは、消火対象区画内に偏りなく行き渡り、
構造が複雑な消火対象に対しても強力な消火効果を発揮
する。In the event of a fire, by opening the container valves 2 of all the extinguishant storage containers 1 by manual or automatic operation, using appropriate electrical means or pneumatic means,
Nitrogen gas is sent from the extinguishant storage container 1 to the ejection head 7 through the container valve 2, the connecting pipe 3, the collecting pipe 4, the main pipe 5 and the branch pipe 8, and is discharged from the ejection head 7 into the fire extinguishing target compartment 6. To do so. At this time, since the extinguishant storage container 1 is filled with nitrogen gas in a gaseous state, the ejection head 7
When it is released from the fire extinguishing target compartment, heat of vaporization is not taken from the surroundings, so that moisture in the air does not condense and static electricity does not occur. Further, since nitrogen gas has a density close to that of air, the nitrogen gas released into the fire-extinguishing compartment spreads evenly within the fire-extinguishing compartment,
It exerts a strong fire-extinguishing effect even on fire-extinguishing objects with complex structures.
【００１５】図２〜図３に、本発明の窒素ガス消火設備
の第２実施例を示す。2 to 3 show a second embodiment of the nitrogen gas fire extinguishing equipment of the present invention.
【００１６】本実施例は、複数の消火対象区画６ー１，
６−２，・・・６ーＮを有する場合の窒素ガス消火設備
を示したものである。なお、本実施例の場合、消火対象
区画の数が前記第１実施例と異なるのみで、基本的な作
用は、前記第１実施例と異なるところはない。In this embodiment, a plurality of fire extinguishing target sections 6-1 and
6-2 shows a nitrogen gas fire extinguishing equipment having 6-N. In the case of the present embodiment, the number of fire extinguishing target sections is different from that of the first embodiment, and the basic operation is the same as that of the first embodiment.
【００１７】図２に示すように、各消火剤貯蔵容器１に
は、容器弁２を介して連結管３を接続し、さらに連結管
３を１本の集合管４に接続し、この集合管４を各消火対
象区画６ー１，６−２，・・・６ーＮまで延設した主配
管５ー１，５−２，・・・５ーＮに接続する。主配管５
ー１，５−２，・・・５ーＮには、選択弁９ー１，９−
２，・・・９ーＮを配設し、消火対象区画６ー１，６−
２，・・・６ーＮに選択的に窒素ガスを送るようにす
る。消火対象区画６ー１，６−２，・・・６ーＮまで延
設した主配管５ー１，５−２，・・・５ーＮを、消火対
象区画６ー１，６−２，・・・６ーＮ内にそれぞれ配設
した枝管８ー１，８−２，・・・８ーＮに接続し、この
枝管８ー１，８−２，・・・８ーＮを消火対象区画６内
の適所に複数個配設した噴射ヘッド７ー１，７−２，・
・・７ーＮに接続する。As shown in FIG. 2, a connecting pipe 3 is connected to each extinguishant storage container 1 via a container valve 2, and the connecting pipe 3 is connected to one collecting pipe 4, and this collecting pipe is connected. 4 is connected to the main pipes 5-1, 5-2, ... 5-N extending to each fire extinguishing section 6-1, 6-2 ,. Main piping 5
-1,5-2, ... 5-N have selection valves 9-1,9-
2, ... 9-N is arranged, and fire extinguishing target sections 6-1 and 6-
2, ... 6-N is selectively fed with nitrogen gas. Fire extinguishing target sections 6-1, 6-2, ... 6-N extended main pipes 5-1, 5-2, ... 5-N, fire extinguishing target sections 6-1, 6-2, ... Connected to the branch pipes 8-1, 8-2, ... 8-N respectively arranged in 6-N, and these branch pipes 8-1, 8-2, ... 8-N are connected. A plurality of ejection heads 7-1, 7-2, ... Arranged at appropriate places in the fire extinguishing section 6
..Connect to 7-N.
【００１８】ところで、通常、各消火対象区画６ー１，
６−２，・・・６ーＮは、その容積、が異なるため、当
然、放出すべき窒素ガスの量も異なる。このため、主配
管５ー１，５−２，・・・５ーＮの口径を各消火対象区
画６ー１，６−２，・・・６ーＮの容積に応じて異なら
せるほか、火災の際、消火対象となる消火対象区画６ー
１，６−２，・・・６ーＮに対応した本数の消火剤貯蔵
容器１が開放されるように窒素ガス消火設備を構成す
る。By the way, normally, each of the fire extinguishing target sections 6-1 and
Since 6-2, ..., 6-N have different volumes, naturally, the amounts of nitrogen gas to be released also differ. Therefore, the diameters of the main pipes 5-1, 5-2, ... 5-N are made different according to the volumes of the fire extinguishing target sections 6-1, 6-2 ,. At this time, the nitrogen gas fire extinguishing equipment is configured so that the number of the extinguishant storage containers 1 corresponding to the fire extinguishing target sections 6-1, 6-2, ... 6-N are opened.
【００１９】図３は、図２の窒素ガス消火設備の詳細構
造を示し、ここでは、消火対象区画が３区画の場合を例
にして示している。ここで、開放すべき消火剤貯蔵容器
１の本数を、消火対象区画６ー１が５本、消火対象区画
６−２が３本、消火対象区画６ー３が１本に設定するこ
ととする。なお、図中、９ー１，９−２，９ー３は選択
弁、３０ー１，３０−２，３０ー３は選択弁開放装置、
３１ー１，３１−２，３１ー３は起動用ガス容器、３２
ー１，３２−２，３２ー３は起動用ガス容器開放用のソ
レノイドである。また、図中、３３ー１，３３ー２，３
３ー３は、選択弁９ー１，９−２，９ー３及び起動用ガ
ス容器３１ー１，３１−２，３１ー３の開放をコントロ
ールする起動用ガス管路で、選択弁開放装置３０ー１，
３０−２，３０ー３に接続され、その途中の適所に不還
弁３４ー１，３４−２，３４ー３，３４−Ａ，３４ーＢ
を配設する。なお、不還弁３４ー１，３４−２，３４ー
３，３４−Ａ，３４ーＢの通過可能方向は、図の矢印の
向きで表している。消火剤貯蔵容器１及び連結管３の本
数は、それぞれ３本である。なお、これらの部材の末尾
の数字１，２，３は、消火対象区画の末尾の数字１，
２，３にそれぞれ対応している。FIG. 3 shows a detailed structure of the nitrogen gas fire extinguishing equipment shown in FIG. 2, in which the case where there are three fire extinguishing target compartments is shown as an example. Here, it is assumed that the number of the extinguishant storage containers 1 to be opened is set to 5 for the fire extinguishing compartment 6-1 and 3 for the fire extinguishing compartment 6-2 and 1 for the fire extinguishing compartment 6-3. . In the figure, 9-1, 9-2, 9-3 are selection valves, 30-1, 30-2, 30-3 are selection valve opening devices,
31-1, 31-2, 31-3 are starting gas containers, 32
-1, 32-2, 32-3 are solenoids for opening the starting gas container. Also, in the figure, 33-1, 33-2, 3
3-3 is a starting gas pipeline for controlling the opening of the selection valves 9-1, 9-2, 9-3 and the starting gas containers 31-1, 31-2, 31-3. 30-1,
30-2, 30-3, and non-return valves 34-1, 34-2, 34-3, 34-A, 34-B connected to appropriate places on the way.
To arrange. The directions in which the non-return valves 34-1, 34-2, 34-3, 34-A, 34-B can pass are represented by the directions of the arrows in the figure. The number of extinguishant storage containers 1 and the number of connecting pipes 3 are each three. The numbers 1, 2 and 3 at the end of these members are the numbers 1 and 2 at the end of the fire-extinguishing section.
It corresponds to 2 and 3, respectively.
【００２０】次に火災の際の動作について説明する。い
ま、消火対象区画６ー１に火災が発生したとすれば、火
災発見者がこの消火対象区画６ー１に対応する押釦（手
動操作の場合）を操作すると、電気信号が起動用ガス容
器開放用のソレノイド３２ー１に送られ、ソレノイド３
２ー１が動作して起動用ガス容器３１ー１が開放され
る。起動用ガス容器３１ー１が開放されることにより放
出された起動用ガスは、まず、選択弁開放装置３０ー１
に導入されて選択弁９ー１を開放してから、不還弁３４
ー１を経て起動用ガス管路３３ー１を通り、不還弁３４
ーＡ及び不還弁３４ーＢを通過して全ての容器弁２２に
至って消火剤貯蔵容器１を５本とも開放する。このと
き、不還弁３４ー２及び不還弁３４ー３を通過すること
ができないため、選択弁９ー２及び選択弁９ー３は開放
されない。これにより、開放された５本の消火剤貯蔵容
器１から窒素ガスを、容器弁２、連結管３、集合管４、
選択弁９ー１、主配管５ー１及び枝管８ー１を介して噴
射ヘッド７ー１まで送り、噴射ヘッド７ー１から消火対
象区画６ー１内に放出するようにする。Next, the operation in case of fire will be described. Now, assuming that a fire has occurred in the fire extinguishing target compartment 6-1, when a fire finder operates the push button (in the case of manual operation) corresponding to the fire extinguishing target compartment 6-1, an electric signal opens the starting gas container. Sent to the solenoid 32-1 for the solenoid 3
2-1 operates and the starting gas container 31-1 is opened. The start-up gas released by opening the start-up gas container 31-1 is first selected by the selection valve opening device 30-1.
After opening the selection valve 9-1, the non-return valve 34
-1 through the starting gas line 33-1 and the non-return valve 34
-A and non-return valve 34-B to reach all container valves 22 and open all five extinguishant storage containers 1. At this time, since the non-return valve 34-2 and the non-return valve 34-3 cannot pass through, the selection valve 9-2 and the selection valve 9-3 are not opened. As a result, nitrogen gas is supplied from the opened five extinguishant storage containers 1 to the container valve 2, the connecting pipe 3, the collecting pipe 4,
It is sent to the jet head 7-1 via the selection valve 9-1, the main pipe 5-1, and the branch pipe 8-1, and is discharged from the jet head 7-1 into the fire extinguishing target section 6-1.
【００２１】また、消火対象区画６ー２に火災が発生し
たとすれば、火災発見者がこの消火対象区画６ー２に対
応する押釦（手動操作の場合）を操作すると、電気信号
が起動用ガス容器開放用のソレノイド３２ー２に送ら
れ、ソレノイド３２ー２が動作して起動用ガス容器３１
ー２が開放される。起動用ガス容器３１ー２が開放され
ることにより放出された起動用ガスは、まず、選択弁開
放装置３０ー２に導入されて選択弁９ー２を開放してか
ら、不還弁３４ー２を経て起動用ガス管路３３ー２を通
り、不還弁３４ーＢを通過して容器弁２２に至って消火
剤貯蔵容器１を３本だけ開放する。このとき、不還弁３
４ーＡを通過することができないため、消火剤貯蔵容器
１のうち２本は開放されない。また、不還弁３４ー１及
び不還弁３４ー３を通過することができないため、選択
弁９ー１及び選択弁９ー３は開放されない。これによ
り、開放された３本の消火剤貯蔵容器１から窒素ガス
を、容器弁２、連結管３、集合管４、選択弁９ー２、主
配管５ー２及び枝管８ー２を介して噴射ヘッド７ー２ま
で送り、噴射ヘッド７ー２から消火対象区画６ー２内に
放出するようにする。If there is a fire in the fire extinguishing compartment 6-2, when the fire finder operates the push button (in the case of manual operation) corresponding to the fire extinguishing compartment 6-2, the electric signal is activated. It is sent to the solenoid 32-2 for opening the gas container, and the solenoid 32-2 operates to start the gas container 31.
-2 is opened. The starting gas released by opening the starting gas container 31-2 is first introduced into the selection valve opening device 30-2 to open the selection valve 9-2, and then the non-return valve 34-. After passing through 2, the starting gas pipeline 33-2, the non-return valve 34-B, and the container valve 22 to open only three extinguishant storage containers 1. At this time, non-return valve 3
Two of the extinguishant storage containers 1 are not opened because they cannot pass through 4-A. Further, since the non-return valve 34-1 and the non-return valve 34-3 cannot pass through, the selection valve 9-1 and the selection valve 9-3 are not opened. As a result, nitrogen gas from the opened three extinguishant storage containers 1 is passed through the container valve 2, the connecting pipe 3, the collecting pipe 4, the selection valve 9-2, the main pipe 5-2 and the branch pipe 8-2. To the ejection head 7-2, and the ejection head 7-2 discharges it into the fire extinguishing target section 6-2.
【００２２】また、消火対象区画６ー３に火災が発生し
たとすれば、火災発見者がこの消火対象区画６ー３に対
応する押釦（手動操作の場合）を操作すると、電気信号
が起動用ガス容器開放用のソレノイド３２ー３に送ら
れ、ソレノイド３２ー３が動作して起動用ガス容器３１
ー３が開放される。起動用ガス容器３１ー３が開放され
ることにより放出された起動用ガスは、まず、選択弁開
放装置３０ー３に導入されて選択弁９ー３を開放してか
ら、不還弁３４ー３を経て起動用ガス管路３３ー３を通
り、容器弁２２に至って消火剤貯蔵容器１を１本だけ開
放する。このとき、不還弁３４ーＢを通過することがで
きない（したがって、当然、不還弁３４ーＡも通過する
ことができない）ため、消火剤貯蔵容器１のうち４本は
開放されない。また、不還弁３４ー１及び不還弁３４ー
２を通過することができないため、選択弁９ー１及び選
択弁９ー２は開放されない。これにより、開放された１
本の消火剤貯蔵容器１から窒素ガスを、容器弁２、連結
管３、集合管４、選択弁９ー３、主配管５ー３及び枝管
８ー３を介して噴射ヘッド７ー３まで送り、噴射ヘッド
７ー３から消火対象区画６ー３内に放出するようにす
る。If there is a fire in the fire extinguishing compartment 6-3, when the fire finder operates the push button (in the case of manual operation) corresponding to the fire extinguishing compartment 6-3, the electric signal is activated. It is sent to the solenoid 32-3 for opening the gas container, and the solenoid 32-3 operates to start the gas container 31.
-3 is released. The starting gas released by opening the starting gas container 31-3 is first introduced into the selection valve opening device 30-3 to open the selection valve 9-3, and then the non-return valve 34-. After passing through 3, the gas line 33-3 for starting is reached to the container valve 22 and one extinguishant storage container 1 is opened. At this time, since the non-return valve 34-B cannot pass (thus, the non-return valve 34-A cannot pass, of course), four of the extinguishant storage containers 1 are not opened. Further, since the non-return valve 34-1 and the non-return valve 34-2 cannot pass through, the selection valve 9-1 and the selection valve 9-2 are not opened. By this, 1 released
Nitrogen gas from the fire extinguisher storage container 1 to the jet head 7-3 through the container valve 2, the connecting pipe 3, the collecting pipe 4, the selection valve 9-3, the main pipe 5-3 and the branch pipe 8-3. It is sent and discharged from the jet head 7-3 into the fire extinguishing target section 6-3.
【００２３】以上、消火対象区画が３区画で、消火剤貯
蔵容器１の本数が５本の場合を例にして説明したが、消
火対象区画の数及び消火剤貯蔵容器１の本数並びに開放
される消火剤貯蔵容器１の本数は、本実施例のものに限
定されるものではなく、必要に応じて任意に設定するこ
とができ、その要領も上記実施例と同様である。In the above, the case where the extinguishing target compartment is 3 and the number of the extinguishant storage containers 1 is 5 has been described as an example, but the number of extinguishing target compartments, the number of the extinguishant storage containers 1 and the number of the extinguishant storage containers 1 are opened. The number of the extinguishant storage containers 1 is not limited to that of this embodiment, and can be set arbitrarily as needed, and the procedure is also the same as that of the above embodiment.
【００２４】[0024]
【発明の効果】本発明によれば、従来のガス系消火設備
が有する多くの問題点を一挙に解決し、人、施設及び地
球環境のすべてに対して安全で、かつ消火剤の安定供給
に将来的にも問題のないガス系消火設備を得ることがで
きる。EFFECTS OF THE INVENTION According to the present invention, many problems of the conventional gas fire extinguishing equipment can be solved at once, and it is possible to provide a stable supply of fire extinguishing agent to people, facilities and the global environment. It is possible to obtain a gas-based fire extinguishing facility without any problems in the future.
【図１】本発明の窒素ガス消火設備の第１実施例を示す
図である。FIG. 1 is a diagram showing a first embodiment of a nitrogen gas fire extinguishing facility of the present invention.
【図２】本発明の窒素ガス消火設備の第２実施例を示す
図である。FIG. 2 is a diagram showing a second embodiment of the nitrogen gas fire extinguishing equipment of the present invention.
【図３】第２実施例の詳細構造を示す図である。FIG. 3 is a diagram showing a detailed structure of a second embodiment.
１ 消火剤貯蔵容器 ６ 消火対象区画 ７ 噴射ヘッド 1 Fire extinguisher storage container 6 Fire extinguishing target area 7 Jet head
Claims (1)
火対象区画内の消火剤の濃度を消炎濃度以上に維持する
ことによって消火するようにしたガス系消火設備におい
て、消火剤として窒素ガスを使用するようにしたことを
特徴とする窒素ガス消火設備。1. A gas-based fire extinguishing facility configured to extinguish a fire by releasing a fire extinguisher into the fire-extinguishing target compartment and maintaining the concentration of the fire-extinguishing agent in the fire-extinguishing target compartment to be equal to or higher than the flame-extinguishing concentration. Nitrogen gas fire extinguishing equipment characterized by using gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6312690A JPH08141102A (en) | 1994-11-21 | 1994-11-21 | Nitrogen-gas fire extinguishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6312690A JPH08141102A (en) | 1994-11-21 | 1994-11-21 | Nitrogen-gas fire extinguishing equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08141102A true JPH08141102A (en) | 1996-06-04 |
Family
ID=18032258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6312690A Pending JPH08141102A (en) | 1994-11-21 | 1994-11-21 | Nitrogen-gas fire extinguishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08141102A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999047210A1 (en) * | 1998-03-18 | 1999-09-23 | Wagner Alarm- Und Sicherungssysteme Gmbh | Inerting method for preventing and extinguishing fires in enclosed spaces |
| US6461530B2 (en) | 2000-02-15 | 2002-10-08 | Pcbu Services, Inc. | Compositions for the suppression of fire |
| JP2007185518A (en) * | 2002-08-09 | 2007-07-26 | Daido:Kk | Fire extinguishing gas delivery system |
| JP2008175261A (en) * | 2007-01-17 | 2008-07-31 | Koatsu Co Ltd | Pressure reducing device and gas-based fire extinguishing installation using the same |
| WO2008103282A1 (en) * | 2007-02-16 | 2008-08-28 | Nusbaum Michael J | Self-contained automatic fire extinguisher |
| JP2012063016A (en) * | 2011-12-19 | 2012-03-29 | Koatsu Co Ltd | Pressure reducing device, and gas system fire extinguishing equipment using the same |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56128171A (en) * | 1980-03-11 | 1981-10-07 | Hiroshi Hirokawa | Method of extinguishing fire in house |
| JPS5789876A (en) * | 1980-11-25 | 1982-06-04 | Kimimichi Monma | Rapid fire fighting of high building |
| JPS6188755U (en) * | 1985-06-03 | 1986-06-10 | ||
| JPS6458272A (en) * | 1987-07-31 | 1989-03-06 | Air Prod & Chem | Method for fire restraining and extinguishing |
| JPH0631012A (en) * | 1992-07-17 | 1994-02-08 | Toshiaki Inoue | Fire extinguishing device using high-pressure liquefied nitrogen |
-
1994
- 1994-11-21 JP JP6312690A patent/JPH08141102A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56128171A (en) * | 1980-03-11 | 1981-10-07 | Hiroshi Hirokawa | Method of extinguishing fire in house |
| JPS5789876A (en) * | 1980-11-25 | 1982-06-04 | Kimimichi Monma | Rapid fire fighting of high building |
| JPS6188755U (en) * | 1985-06-03 | 1986-06-10 | ||
| JPS6458272A (en) * | 1987-07-31 | 1989-03-06 | Air Prod & Chem | Method for fire restraining and extinguishing |
| JPH0631012A (en) * | 1992-07-17 | 1994-02-08 | Toshiaki Inoue | Fire extinguishing device using high-pressure liquefied nitrogen |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999047210A1 (en) * | 1998-03-18 | 1999-09-23 | Wagner Alarm- Und Sicherungssysteme Gmbh | Inerting method for preventing and extinguishing fires in enclosed spaces |
| AU747436B2 (en) * | 1998-03-18 | 2002-05-16 | Wagner Group Gmbh | Inerting method for preventing and extinguishing fires in enclosed spaces |
| US6461530B2 (en) | 2000-02-15 | 2002-10-08 | Pcbu Services, Inc. | Compositions for the suppression of fire |
| JP2007185518A (en) * | 2002-08-09 | 2007-07-26 | Daido:Kk | Fire extinguishing gas delivery system |
| JP2008175261A (en) * | 2007-01-17 | 2008-07-31 | Koatsu Co Ltd | Pressure reducing device and gas-based fire extinguishing installation using the same |
| WO2008103282A1 (en) * | 2007-02-16 | 2008-08-28 | Nusbaum Michael J | Self-contained automatic fire extinguisher |
| JP2012063016A (en) * | 2011-12-19 | 2012-03-29 | Koatsu Co Ltd | Pressure reducing device, and gas system fire extinguishing equipment using the same |
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