JPH10192436A - Inert gas extinguishing equipment, atc pressure regulating valve for the same - Google Patents
Inert gas extinguishing equipment, atc pressure regulating valve for the sameInfo
- Publication number
- JPH10192436A JPH10192436A JP3358898A JP3358898A JPH10192436A JP H10192436 A JPH10192436 A JP H10192436A JP 3358898 A JP3358898 A JP 3358898A JP 3358898 A JP3358898 A JP 3358898A JP H10192436 A JPH10192436 A JP H10192436A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- fire extinguishing
- pressure
- inert gas
- valve
- 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.)
- Granted
Links
- 239000011261 inert gas Substances 0.000 title claims abstract description 143
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 282
- 239000003795 chemical substances by application Substances 0.000 claims description 145
- 238000003860 storage Methods 0.000 claims description 80
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 11
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 26
- 230000001629 suppression Effects 0.000 description 15
- 229910002092 carbon dioxide Inorganic materials 0.000 description 13
- 239000001569 carbon dioxide Substances 0.000 description 13
- 238000002347 injection Methods 0.000 description 10
- 239000007924 injection Substances 0.000 description 10
- 229920004449 Halon® Polymers 0.000 description 8
- PXBRQCKWGAHEHS-UHFFFAOYSA-N dichlorodifluoromethane Chemical compound FC(F)(Cl)Cl PXBRQCKWGAHEHS-UHFFFAOYSA-N 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- 230000004913 activation Effects 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- XPDWGBQVDMORPB-UHFFFAOYSA-N Fluoroform Chemical compound FC(F)F XPDWGBQVDMORPB-UHFFFAOYSA-N 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- JRHNUZCXXOTJCA-UHFFFAOYSA-N 1-fluoropropane Chemical compound CCCF JRHNUZCXXOTJCA-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 150000002222 fluorine compounds Chemical class 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 150000008282 halocarbons Chemical class 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003533 narcotic effect Effects 0.000 description 1
- GTLACDSXYULKMZ-UHFFFAOYSA-N pentafluoroethane Chemical compound FC(F)C(F)(F)F GTLACDSXYULKMZ-UHFFFAOYSA-N 0.000 description 1
- KAVGMUDTWQVPDF-UHFFFAOYSA-N perflubutane Chemical compound FC(F)(F)C(F)(F)C(F)(F)C(F)(F)F KAVGMUDTWQVPDF-UHFFFAOYSA-N 0.000 description 1
- 229950003332 perflubutane Drugs 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- GUIJLPKNGJMXKV-AZUAARDMSA-N rod-188 Chemical compound C1=CC(C)=CC=C1S(=O)(=O)N1[C@@H]([C@H]2OC(=O)CC2)C2=CC=CC=C2CC1 GUIJLPKNGJMXKV-AZUAARDMSA-N 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
- VPAYJEUHKVESSD-UHFFFAOYSA-N trifluoroiodomethane Chemical compound FC(F)(F)I VPAYJEUHKVESSD-UHFFFAOYSA-N 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、消火剤貯蔵容器内
にガス状態で貯蔵されている不活性ガス消火剤を消火対
象区画内に放出し、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 releases an inert gas fire extinguishing agent stored in a gaseous state in a fire extinguishing agent storage container into a fire extinguishing target compartment and determines the concentration of the fire extinguishing agent in the fire extinguishing target compartment by the concentration of the fire extinguishing agent. The present invention relates to a gas fire extinguishing system that extinguishes a fire by maintaining the above.
【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 fire extinguishing system in which a fire extinguishing agent is discharged into a fire extinguishing section and the fire extinguishing agent is extinguished by maintaining the concentration of the fire extinguishing agent in the fire extinguishing section higher than the flame-extinguishing concentration. Those using an inert gas such as carbon dioxide or halon gas have been put to 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、消火剤
貯蔵容器の容器弁を開放することにより、二酸化炭素や
ハロンガスを消火剤貯蔵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。When an inert gas such as carbon dioxide or halon gas is used as a fire extinguishing agent, these extinguishants are liquefied under pressure and filled in a fire extinguisher storage container composed of a high-pressure gas container, and then the fire extinguishing equipment is used. In the event of a fire, use appropriate electrical or pneumatic means to open the container valve of the fire extinguisher storage container to remove carbon dioxide and halon gas from the fire extinguisher storage container. Through the jet head, and discharges the jet head into the fire extinguishing target compartment. At this time, the inert gas such as carbon dioxide and halon gas is sent in a liquid state to the ejection head, and is vaporized at the moment when the gas is released from the ejection head into the fire extinguishing section, and becomes a gaseous state. 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。A gas fire extinguishing system using an inert gas such as carbon dioxide or halon gas is capable of rapidly suppressing a fire, hardly contaminating a fire extinguishing agent with a fire extinguishing agent, and having an electrical insulating property. That the fire extinguishing agent can penetrate through gaps and exert a strong fire-extinguishing effect even on fire-extinguishing objects with a complicated structure, and that the fire extinguishing agent has a constant fire-extinguishing ability over a long period without aging. It is widely used not only in petroleum-related facilities and electrical facilities, but also in 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 relating to destruction of the ozone layer has been raised on a worldwide scale, and production of fire extinguishing agents containing halogenated hydrocarbon components such as halon gas was discontinued in January 1994. It is virtually unusable. Accordingly, excluding special fire extinguishing equipment using expensive rare gas such as argon, it can be said that the fire extinguishing agent currently used in gas fire extinguishing equipment is only carbon dioxide.
【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。[0006] On the other hand, fire extinguishing equipment using carbon dioxide as a fire extinguishing agent is also known to have the following problems. (1) The design concentration of carbon dioxide in the fire extinguishing target compartment at the time of fire extinguishing is about 35%. At this concentration, if there is a person in the fire extinguishing target compartment, the toxicity of carbon dioxide (narcotic ) May cause a situation involving human life. (2) In the event of a fire, carbon dioxide is sent to the injection head in a liquid state, and when it is released from the injection head into the fire extinguishing target compartment, it evaporates to a gaseous state. Saturated vapor pressure of the indoor air decreases due to deprivation of heat of vaporization, moisture in the air condenses, and static electricity is generated. As a result, the interior of the room is in a fog condition, which may hinder the evacuation and rescue of people and fire extinguishing work, and may cause insulation failure or breakdown of electronic devices due to condensation and static electricity, which may cause a serious secondary disaster. is there. (3) Since carbon dioxide has a much higher density than air, the carbon dioxide released into the fire extinguishing compartment stays in the lower part of the fire extinguishing compartment and the fire extinguishing effect is reduced. It is easy to dissipate outside through the lower opening. (4) As the issue of global warming is raised on a global scale, the use of carbon dioxide may be restricted in the future, as with halon gas.
【０００７】[0007]
【発明が解決しようとする課題】ところで、本件出願人
は、上記従来のガス系消火設備が有する多くの問題点を
解決するために、先に窒素ガスや窒素ガスに、オゾン層
を破壊しないパーフルオロアルカン（パーフルオロブタ
ン（Ｃ4Ｆ10））、ハイドロジェノフルオロアルカン
（トリフルオロメタン（ＣＨＦ3）、へプタフルオロプ
ロパン（Ｃ3ＨＦ7）又はペンタフルオロエタン（Ｃ2Ｈ
Ｆ5））又はハイドロジェノフルオロハロゲノアルカン
（アイオドトリフルオロメタン（ＣＦ3Ｉ））（以下、
これらを総称して「フッ素系化合物」という。）の少な
くとも１種類を１０容積％以下の割合で混合した混合ガ
ス（以下単に「混合ガス」という。）を消火剤として使
用する消火設備を提案した（特開平８−１４１１０２号
公報及び特開平８−２４３１８６号公報参照）。By the way, the applicant of the present invention has proposed to solve the above-mentioned many problems of the conventional gas fire extinguishing system by first adding nitrogen gas or nitrogen gas to a gas that does not destroy the ozone layer. fluoroalkanes (perfluorobutane (C 4 F 10)), hydro Geno fluoroalkanes (trifluoromethane (CHF 3), to the descriptor fluoropropane (C 3 HF 7) or pentafluoroethane (C 2 H
F 5 )) or hydrogenofluorohalogenoalkane (iodotrifluoromethane (CF 3 I)) (hereinafter, referred to as
These are collectively referred to as "fluorine compounds". (Japanese Patent Application Laid-Open Nos. H08-141102 and H08-141802) have proposed a fire-extinguishing facility using a mixed gas (hereinafter, simply referred to as "mixed gas") obtained by mixing at least one of the above-mentioned types at a ratio of 10% by volume or less. -243186).
【０００８】しかしながら、ガス系消火設備の消火剤と
して窒素ガスや混合ガスを使用した場合も、以下の問題
点があることがわかった。 (1) ガス系消火設備の消火剤としての窒素ガスや混合ガ
スは、加圧してガス状態で貯蔵されたものを使用するた
め、加圧液化した状態で貯蔵されたものを使用する二酸
化炭素やハロンガスに比べて、同容積の消火対象区画の
消火に要する消火剤貯蔵容器の数が数倍必要となり、消
火剤貯蔵容器の大きな設置スペースが必要となる。 (2) 設置する消火剤貯蔵容器の数を低減するためには、
消火剤貯蔵容器に充填する不活性ガス消火剤の充填圧力
を高める必要があるが、不活性ガス消火剤の充填圧力を
高めた場合、選択弁、主配管、枝管、噴射ヘッド等の消
火設備の二次側機器にも不活性ガス消火剤の高いガス圧
がかかることとなり、このため、これら二次側機器の耐
圧グレードを上げる必要があり、設備費が著しく高くな
り、また、既存の設備には、適用できない。However, it has been found that the following problems also occur when nitrogen gas or mixed gas is used as a fire extinguishing agent for gas fire extinguishing equipment. (1) Nitrogen gas or mixed gas as a fire extinguishing agent for gas fire extinguishing equipment is used under pressure and stored in gaseous state. Compared with halon gas, the number of fire extinguishing agent storage containers required for extinguishing a fire extinguishing target compartment having the same volume is several times as large, and a large installation space for the fire extinguishing agent storage container is required. (2) In order to reduce the number of fire extinguisher storage containers to be installed,
It is necessary to increase the filling pressure of the inert gas fire extinguishing agent filled in the fire extinguisher storage container.If the filling pressure of the inert gas fire extinguishing agent is increased, fire extinguishing equipment such as selection valves, main piping, branch pipes, injection heads, etc. The high pressure of the inert gas fire extinguisher will also be applied to the secondary equipment of this type, so it is necessary to raise the pressure resistance grade of these secondary equipment, and the equipment cost will increase significantly, and the existing equipment Is not applicable to
【０００９】本発明は、消火剤として窒素ガスや混合ガ
ス等の消火剤貯蔵容器内にガス状態で貯蔵される不活性
ガス消火剤を使用する不活性ガス消火設備の有する問題
点を解決し、消火設備の二次側機器の耐圧グレードを上
げることなく不活性ガス消火剤の充填圧力を高めること
ができる不活性ガス消火設備及び不活性ガス消火設備用
制圧弁を提供することを目的とする。The present invention solves the problems of an inert gas fire extinguishing system that uses an inert gas fire extinguisher stored in a gaseous state in a fire extinguisher storage container such as a nitrogen gas or a mixed gas as a fire extinguishing agent. It is an object of the present invention to provide an inert gas fire extinguishing system and a control valve for the inert gas fire extinguishing system, which can increase the filling pressure of the inert gas extinguishing agent without increasing the pressure resistance grade of the secondary device of the fire extinguishing system.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するた
め、本第１発明の不活性ガス消火設備は、消火剤貯蔵容
器内にガス状態で貯蔵されている不活性ガス消火剤を消
火対象区画内に放出し、消火対象区画内の不活性ガス消
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
するようにした不活性ガス消火設備において、消火剤貯
蔵容器の容器弁に、放出側の不活性ガス消火剤のガス圧
を定圧ガス源のガス圧によって規定される基準ガス圧以
下に規制する制圧弁を用いたことを要旨とする。In order to achieve the above object, an inert gas fire extinguishing system according to the first aspect of the present invention is a method for extinguishing an inert gas fire extinguishing agent stored in a gaseous state in a fire extinguishing agent storage container. In the inert gas fire-extinguishing equipment, which is extinguished by maintaining the concentration of the inert gas fire-extinguishing agent in the fire-extinguishing compartment at or above the flame-extinguishing concentration, the container valve of the fire-extinguishing agent storage container is The gist of the invention is to use a pressure control valve that regulates the gas pressure of the inert gas fire extinguishing agent to a reference gas pressure defined by the gas pressure of a constant pressure gas source.
【００１１】本第２発明の不活性ガス消火設備は、消火
剤貯蔵容器内にガス状態で貯蔵されている不活性ガス消
火剤を消火対象区画内に放出し、消火対象区画内の不活
性ガス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不活性ガス消火設備において、
消火剤貯蔵容器と選択弁とを接続する集合管に、放出側
の不活性ガス消火剤のガス圧を定圧ガス源のガス圧によ
って規定される基準ガス圧以下に規制する制圧弁を配設
したことを要旨とする。The inert gas fire extinguishing system according to the second aspect of the present invention discharges an inert gas fire extinguishing agent stored in a gaseous state in a fire extinguishing agent storage container into a fire extinguishing target compartment, and discharges the inert gas in the fire extinguishing target compartment. In an inert gas fire extinguishing system that extinguishes the fire by maintaining the concentration of the fire extinguishing agent at or above the quenching concentration,
In the collecting pipe connecting the fire extinguisher storage container and the selection valve, a control valve that regulates the gas pressure of the discharge side inert gas fire extinguishing agent to a reference gas pressure specified by the gas pressure of the constant pressure gas source is provided. That is the gist.
【００１２】この場合において、定圧ガス源のガス圧
を、例えば、圧力調整器等を用いて調節することによ
り、基準ガス圧を変更することができる。In this case, the reference gas pressure can be changed by adjusting the gas pressure of the constant-pressure gas source using, for example, a pressure regulator.
【００１３】また、３５℃において、１８０kgf／cm2以
上で不活性ガス消火剤を充填した消火剤貯蔵容器を用い
ることができる。At 35 ° C., a fire extinguisher storage container filled with an inert gas fire extinguisher at 180 kgf / cm 2 or more can be used.
【００１４】また、不活性ガス消火剤に窒素ガスを用い
ることができる。In addition, nitrogen gas can be used as an inert gas fire extinguishing agent.
【００１５】本第３発明の不活性ガス消火設備用制圧弁
は、不活性ガス消火剤の流路に設けた流路弁と、不活性
ガス消火剤の流路を閉鎖する方向に流路弁を付勢するば
ねと、定圧ガス源のガス供給口と、一端をガス供給口
に、他端を不活性ガス消火剤の流路の放出側に接続した
シリンダ内に配設したピストンと、不活性ガス消火剤の
流路を開放する方向に流路弁を操作するピストンの端部
に形成した操作棒とからなることを要旨とする。[0015] The pressure control valve for the inert gas fire extinguishing equipment according to the third invention comprises a flow path valve provided in the flow path of the inert gas fire extinguishing agent, and a flow path valve in a direction to close the flow path of the inert gas fire extinguishing agent. A gas supply port of a constant-pressure gas source, a piston disposed in a cylinder having one end connected to the gas supply port, and the other end connected to the discharge side of the flow path of the inert gas fire extinguishing agent. An operating rod formed at an end of a piston for operating a flow path valve in a direction to open a flow path of the active gas fire extinguishing agent.
【００１６】消火剤貯蔵容器の容器弁に制圧弁を用いた
り、消火剤貯蔵容器と選択弁とを接続する集合管に制圧
弁を配設することにより、制圧弁の放出側の不活性ガス
消火剤のガス圧を定圧ガス源のガス圧によって規定され
る基準ガス圧以下に規制することができ、不活性ガス消
火剤の充填圧力が高い場合にも、消火設備の二次側機器
に不活性ガス消火剤の高いガス圧がかかることがない。
また、この制圧弁は、消火剤貯蔵容器内の不活性ガス消
火剤の圧力が、基準ガス圧以下に低下するまでは、制圧
弁の放出側の不活性ガス消火剤のガス圧を基準ガス圧に
保持する機能を有しているため、不活性ガス消火剤の放
出により消火剤貯蔵容器内の不活性ガス消火剤の圧力が
低下した場合でも、不活性ガス消火剤の放出量を一定に
保つことができる。By using a suppression valve for the container valve of the fire extinguishing agent storage container or by disposing a suppression valve in a collecting pipe connecting the fire extinguishing agent storage container and the selection valve, the inert gas on the discharge side of the suppression fire valve can be extinguished. The gas pressure of the extinguishing agent can be regulated below the reference gas pressure specified by the gas pressure of the constant pressure gas source, and even when the filling pressure of the inert gas fire extinguishing agent is high, the The high gas pressure of the gas fire extinguisher is not applied.
In addition, this pressure control valve keeps the gas pressure of the inert gas fire extinguishing agent on the discharge side of the pressure suppressing valve until the pressure of the inert gas fire extinguishing agent in the fire extinguishing agent storage container falls below the reference gas pressure. Even if the pressure of the inert gas fire extinguisher in the fire extinguisher storage container drops due to the release of the inert gas fire extinguisher, the release amount of the inert gas fire extinguisher is kept constant. be able to.
【００１７】[0017]
【発明の実施の形態】以下、本発明の実施の形態を図示
の実施例に基づいて説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the illustrated embodiments.
【００１８】図１に、本発明の不活性ガス消火設備の第
１実施例を示す。FIG. 1 shows a first embodiment of the inert gas fire extinguishing system of the present invention.
【００１９】本実施例は、３つの消火対象区画６−１，
６−２，６−３を有する場合の不活性ガス消火設備を示
したものである。この不活性ガス消火設備は、不活性ガ
ス消火剤として、例えば、窒素ガスを使用し、これを加
圧して高圧ガス容器に充填した状態（３５℃において、
１８０kgf／cm2）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。この例の不活性ガス
消火設備には、５本の消火剤貯蔵容器１−１，１−２，
・・・１−５を備え、各容器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６−１，６−
２，６−３まで延設した主配管５−１，５−２，５−３
に接続する。主配管５−１，５−２，５−３には、選択
弁９−１，９−２，９−３を配設し、消火対象区画６−
１，６−２，６−３に選択的に不活性ガス消火剤を送る
ようにする。消火対象区画６−１，６−２，６−３まで
延設した主配管５−１，５−２，５−３を、消火対象区
画６−１，６−２，６−３内にそれぞれ配設した枝管８
−１，８−２，８−３に接続し、この枝管８−１，８−
２，８−３を消火対象区画６−１，６−２，６−３内の
適所に複数個配設した噴射ヘッド７−１，７−２，７−
３に接続する。In this embodiment, three fire extinguishing target sections 6-1 and 6-1 are used.
6 shows an inert gas fire extinguishing system in the case of having 6-2 and 6-3. This inert gas fire extinguishing equipment uses, for example, nitrogen gas as an inert gas fire extinguishing agent, and pressurizes and fills the high-pressure gas container (at 35 ° C.
180 kgf / cm 2 )
Used as fire extinguisher storage container 1. The inert gas fire extinguishing equipment of this example has five fire extinguisher storage containers 1-1, 1-2,
.. Provided with 1-5, a connecting pipe 3 is connected to each container 1 via a container valve 2, and further the connecting pipe 3 is connected to one collecting pipe 4, and this collecting pipe 4 is Target sections 6-1 and 6
Main pipes 5-1, 5-2, 5-3 extended to 2, 6-3
Connect to Select valves 9-1, 9-2, and 9-3 are provided in the main piping 5-1, 5-2, and 5-3, and the fire extinguishing target section 6--6 is provided.
Inert gas extinguishing agent is selectively sent to 1,6-2,6-3. The main pipes 5-1, 5-2 and 5-3 extending to the fire extinguishing sections 6-1, 6-2 and 6-3 are respectively placed in the fire extinguishing sections 6-1, 6-2 and 6-3. Branch pipe 8 arranged
-1, 8-2, 8-3, and the branch pipes 8-1, 8-
Injection heads 7-1, 7-2, 7- in which a plurality of 2,8-3 are arranged at appropriate places in fire extinguishing sections 6-1, 6-2, 6-3.
Connect to 3.
【００２０】ところで、通常、各消火対象区画６−１，
６−２，６−３は、その容積が異なるため、当然、消火
するのに必要となる不活性ガス消火剤の量も異なる。こ
のため、主配管５−１，５−２，５−３の口径を各消火
対象区画６−１，６−２，６−３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−
１，６−２，６−３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不活性ガス消火設備を構成する。By the way, usually, each fire extinguishing target section 6-1,
Since 6-2 and 6-3 have different volumes, the amount of the inert gas fire extinguishing agent required to extinguish the fire naturally differs. For this reason, the diameters of the main pipes 5-1, 5-2, 5-3 are made different according to the volumes of the fire extinguishing sections 6-1, 6-2, 6-3. Fire extinguishing area 6
Number of fire extinguisher storage containers 1 corresponding to 1, 6-2, 6-3
The inert gas fire extinguishing system is configured so that is opened.
【００２１】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６−１が５本、消火対象区画６−２
が３本、消火対象区画６−３が１本に設定することとす
る。なお、図中、９−１，９−２，９−３は選択弁、１
０−１，１０−２，１０−３は選択弁開放装置、１１−
１，１１−２，１１−３は起動用ガス容器、１２−１，
１２−２，１２−３は起動用ガス容器開放用のソレノイ
ドである。また、図中、１３−１，１３−２，１３−３
は、選択弁９−１，９−２，９−３及び起動用ガス容器
１１−１，１１−２，１１−３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１０−１，１０−
２，１０−３に接続され、その途中の適所に不還弁１４
−１，１４−２，１４−３，１４−Ａ，１４−Ｂを配設
する。なお、不還弁１４−１，１４−２，１４−３，１
４−Ａ，１４−Ｂの通過可能方向は、図の矢印の向きで
表している。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。Here, the number of fire extinguisher storage containers 1 to be opened is determined by the number of fire extinguisher compartments 6-1 and the number of fire extinguisher compartments 6-2.
Are set to three, and the fire extinguishing target section 6-3 is set to one. In the figure, 9-1, 9-2, 9-3 are selection valves, 1
0-1, 10-2, 10-3 are selective valve opening devices, 11-
1, 11-2 and 11-3 are starting gas containers, and 12-1 and 12-1.
Reference numerals 12-2 and 12-3 denote solenoids for opening the starting gas container. Also, in the figure, 13-1, 13-2, 13-3
Is a starting gas pipeline for controlling the opening of the selection valves 9-1, 9-2, 9-3 and the starting gas containers 11-1, 11-2, 11-3. , 10-
2, 10-3, and a non-return valve 14
-1, 14-2, 14-3, 14-A and 14-B are provided. The non-return valves 14-1, 14-2, 14-3, 1
The directions in which 4-A and 14-B can pass are indicated by the directions of arrows in the figure. In addition, the numbers 1, 2, 2 at the end of these members
3 corresponds to the numbers 1, 2, and 3 at the end of the fire extinguishing target section, respectively.
【００２２】この場合において、容器弁２には、図２に
示す、容器弁２の放出側の不活性ガス消火剤のガス圧Ｐ
を定圧ガス源のガス圧Ｐ1によって規定される基準ガス
圧Ｐ0以下に規制する制圧弁を用いる。この制圧弁は、
不活性ガス消火剤の流路２１に設けた３本のガイド部材
２２ａを有する流路弁２２と、不活性ガス消火剤の流路
２１を閉鎖する方向に流路弁２２を付勢するばね２３
と、定圧ガス源（本実施例の場合は、定圧ガス源とし
て、窒素ガスを充填（３５℃において、１１０kgf／c
m2）した起動用ガス容器１１−１，１１−２，１１−３
を利用するようにしている。）からのガス供給口２４
と、一端をガス供給口２４に、他端を不活性ガス消火剤
の流路２１の放出側に接続したシリンダ２５内に配設し
たピストン２６と、不活性ガス消火剤の流路２１を開放
する方向に流路弁２２を操作するピストン２６の端部に
形成した操作棒２７と、流路弁２２とは逆方向にピスト
ン２６を付勢するばね２８とから構成したものである。In this case, the gas pressure P of the inert gas extinguishing agent on the discharge side of the container valve 2 shown in FIG.
Is regulated to a reference gas pressure P0 or less defined by the gas pressure P1 of the constant pressure gas source. This suppression valve is
A flow path valve 22 having three guide members 22a provided in the flow path 21 for the inert gas fire extinguishing agent; and a spring 23 for urging the flow path valve 22 in a direction to close the flow path 21 for the inert gas fire extinguishing agent.
And a constant pressure gas source (in the case of the present embodiment, nitrogen gas is charged as a constant pressure gas source (110 kgf / c at 35 ° C.)
m 2 ) Startup gas containers 11-1, 11-2, 11-3
I use it. Gas supply port 24)
And a piston 26 disposed in a cylinder 25 having one end connected to the gas supply port 24 and the other end connected to the discharge side of the flow path 21 for the inert gas fire extinguishing agent, and opening the flow path 21 for the inert gas fire extinguishing agent. The operation rod 27 is formed at the end of a piston 26 that operates the flow path valve 22 in the direction in which the piston 26 operates, and a spring 28 that urges the piston 26 in a direction opposite to the flow path valve 22.
【００２３】次に、この制圧弁の動作について説明す
る。定圧ガス源としての起動用ガス容器１１−１，１１
−２，１１−３からガス供給口２４にガス圧Ｐ1（１１
０kgf／cm2）のガスを供給することにより、ピストン２
６をばね２８の付勢力に抗して移動させ、ピストン２６
の端部に形成した操作棒２７により流路弁２２をばね２
３の付勢力に抗して操作し、不活性ガス消火剤の流路２
１を開放させる。不活性ガス消火剤の流路２１が開放さ
れると、消火剤貯蔵容器１から流路２１内に不活性ガス
消火剤が流入し、消火剤貯蔵容器１内の不活性ガス消火
剤のガス圧Ｐ2（３５℃において、１８０kgf／cm2）が
ピストン２６の他端側に作用し、ピストン２６は、操作
棒２７による流路弁２２の操作を解除する方向に移動
し、これにより、流路弁２２もばね２３の付勢力を受け
て不活性ガス消火剤の流路２１を閉鎖する方向に移動す
る。しかしながら、ピストン２６の一端側には、起動用
ガス容器１１−１，１１−２，１１−３のガス圧Ｐ1
（１１０kgf／cm2）が作用しているため、流路弁２２
は、不活性ガス消火剤の流路２１を完全に閉鎖すること
なく、流路弁２２並びにピストン２６及び操作棒２７
は、瞬時に平衡し、本実施例の場合、流路２１の放出側
の不活性ガス消火剤のガス圧Ｐは、起動用ガス容器１１
−１，１１−２，１１−３のガス圧Ｐ1（１１０kgf／cm
2）と等しい値に保持される。この場合において、制圧
弁によって保持される放出側の不活性ガス消火剤のガス
圧Ｐ、すなわち、基準ガス圧Ｐ0は、定圧ガス源、すな
わち、起動用ガス容器１１−１，１１−２，１１−３の
ガス圧自体を調整したり、起動用ガス容器１１−１，１
１−２，１１−３に圧力調整器を配設し、この圧力調整
器によりガス圧Ｐ1を調整したり、ばね２３，２８にば
ね定数の異なるばねを使用したり、ピストン２６の上部
径と下部径の比を異ならせること等により変更すること
ができるが、不活性ガス消火設備の設計上、基準ガス圧
Ｐ0を定圧ガス源のガス圧Ｐ1と一致するように構成する
ことが望ましい。なお、この制圧弁は、定圧ガス源から
の供給口２４へのガスの供給を停止するとともに、ピス
トン２６上方のシリンダ２５内のガスを排出することに
より、不活性ガス消火剤の流路２１を閉鎖することがで
きる機能を有するものである、この機能を利用して、一
旦開放した消火剤貯蔵容器を閉鎖するように構成するこ
とも可能である。Next, the operation of the pressure control valve will be described. Starting gas containers 11-1 and 11 as constant pressure gas sources
−2, 11-3 to the gas supply port 24 at the gas pressure P1 (11
0 kgf / cm 2 ), the piston 2
6 is moved against the urging force of the spring 28, and the piston 26 is moved.
Of the flow path valve 22 by the operating rod 27 formed at the end of the spring 2
3. Operate against the biasing force of 3.
Release 1 When the flow path 21 of the inert gas fire extinguishing agent is opened, the inert gas fire extinguishing agent flows into the flow path 21 from the fire extinguishing agent storage container 1 and the gas pressure of the inert gas fire extinguishing agent in the fire extinguishing agent storage container 1 is increased. P2 (180 kgf / cm 2 at 35 ° C.) acts on the other end of the piston 26, and the piston 26 moves in a direction in which the operation rod 27 releases the operation of the flow path valve 22. 22 also receives the urging force of the spring 23 and moves in a direction to close the flow path 21 of the inert gas fire extinguishing agent. However, one end of the piston 26 is provided with the gas pressure P1 of the starting gas containers 11-1, 11-2, and 11-3.
(110 kgf / cm 2 ) is acting, the flow path valve 22
The flow path valve 22 and the piston 26 and the operating rod 27 are completely closed without completely closing the flow path 21 for the inert gas fire extinguishing agent.
Equilibrates instantaneously, and in the case of this embodiment, the gas pressure P of the inert gas fire extinguishing agent on the discharge side of the flow path 21
-1, 11-2, 11-3 gas pressure P1 (110 kgf / cm
2 ) is kept equal to In this case, the gas pressure P of the inert gas extinguishing agent on the discharge side held by the suppression valve, that is, the reference gas pressure P0 is a constant pressure gas source, that is, the starting gas containers 11-1, 11-2, 11 -3 for adjusting the gas pressure itself, or for starting gas containers 11-1 and 11-1.
A pressure regulator is provided in each of 1-2 and 11-3, and the gas pressure P1 is adjusted by this pressure regulator, springs having different spring constants are used for the springs 23 and 28, and the upper diameter of the piston 26 is adjusted. Although it can be changed by changing the ratio of the lower diameter, etc., it is desirable to configure the reference gas pressure P0 to match the gas pressure P1 of the constant pressure gas source from the viewpoint of the design of the inert gas fire extinguishing equipment. The pressure control valve stops the supply of gas from the constant pressure gas source to the supply port 24 and discharges the gas in the cylinder 25 above the piston 26, thereby forming the inert gas extinguishing agent flow path 21. The fire extinguisher storage container, which has been once opened, can be closed by using this function.
【００２４】そして、この制圧弁は、図３に示すよう
に、消火剤貯蔵容器１内の不活性ガス消火剤の圧力Ｐ2
が、基準ガス圧Ｐ0以下に低下するまでは、制圧弁の放
出側の不活性ガス消火剤のガス圧Ｐを基準ガス圧Ｐ0に
保持する機能を有しているため、不活性ガス消火剤の放
出により消火剤貯蔵容器内の不活性ガス消火剤の圧力Ｐ
2が低下した場合でも、制圧弁の放出側の不活性ガス消
火剤のガス圧Ｐを基準ガス圧Ｐ0に維持することによ
り、不活性ガス消火剤の放出量を一定に保つことができ
る。なお、図３に、比較例として、減圧機能を有する容
器弁を用いた場合の容器弁の放出側の不活性ガス消火剤
のガス圧Ｐ’及び消火剤貯蔵容器内の不活性ガス消火剤
の圧力Ｐ2’の関係を示したが、減圧機能を有する容器
弁の場合、不活性ガス消火剤の放出により消火剤貯蔵容
器内の不活性ガス消火剤の圧力Ｐ2’が低下すると、容
器弁の放出側の不活性ガス消火剤のガス圧Ｐ’も、それ
に比例するように低下するため、不活性ガス消火剤の放
出量が低下し（制圧弁の場合との差を斜線部で示
す。）、所定の放出時間ｔ0内に所定量の不活性ガス消
火剤を放出するためには、配管の内径を大きくしたり、
減圧の程度を緩和する（当初の容器弁の放出側の不活性
ガス消火剤のガス圧Ｐ’を高める）等の必要があるが、
これには、設備費が高くなるという問題点がある。As shown in FIG. 3, the pressure control valve of the inert gas extinguishing agent in the extinguishing agent storage container 1
Has the function of maintaining the gas pressure P of the inert gas fire extinguishing agent on the discharge side of the control valve at the reference gas pressure P0 until the gas pressure drops below the reference gas pressure P0. The pressure P of the inert gas fire extinguishing agent in the fire extinguishing agent storage container due to release
Even when the value of 2 decreases, by maintaining the gas pressure P of the inert gas fire extinguishing agent on the discharge side of the suppression valve at the reference gas pressure P0, the amount of the inert gas fire extinguishing agent released can be kept constant. FIG. 3 shows, as a comparative example, the gas pressure P ′ of the inert gas fire extinguishing agent on the discharge side of the container valve and the inert gas fire extinguishing agent in the fire extinguishing agent storage container when a container valve having a pressure reducing function is used. Although the relationship of the pressure P2 'was shown, in the case of a container valve having a pressure reducing function, when the pressure P2' of the inert gas fire-extinguishing agent in the fire-extinguishing agent storage container decreases due to the release of the inert gas fire-extinguishing agent, the container valve is discharged Since the gas pressure P ′ of the inert gas fire extinguishing agent on the side also decreases in proportion thereto, the discharge amount of the inert gas fire extinguishing agent decreases (the difference from the case of the suppression valve is indicated by hatching). In order to discharge a predetermined amount of the inert gas fire extinguisher within a predetermined discharge time t0, it is necessary to increase the inner diameter of the pipe,
It is necessary to ease the degree of pressure reduction (increase the gas pressure P 'of the inert gas fire extinguishing agent on the discharge side of the original container valve).
This has the problem that equipment costs are high.
【００２５】次に、上記第１実施例の不活性ガス消火設
備の火災の際の動作について説明する。いま、消火対象
区画６−１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６−１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１２−１に送られ、ソレノイド１２−１が動
作して起動用ガス容器１１−１が開放される。起動用ガ
ス容器１１−１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１０−１に導入されて
選択弁９−１を開放してから、不還弁１４−１を経て起
動用ガス管路１３−１を通り、不還弁１４−Ａ及び不還
弁１４−Ｂを通過して全ての容器弁２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１４−
２及び不還弁１４−３を通過することができないため、
選択弁９−２及び選択弁９−３は開放されない。ところ
で、容器弁２には、放出側の不活性ガス消火剤のガス圧
Ｐを定圧ガス源のガス圧Ｐ1によって規定される基準ガ
ス圧Ｐ0以下に規制する制圧弁を用いているため、開放
された５本の消火剤貯蔵容器１から基準ガス圧Ｐ0（１
１０kgf／cm2）以下に規制された不活性ガスが、容器弁
２、連結管３、集合管４、選択弁９−１、主配管５−１
及び枝管８−１を介して噴射ヘッド７−１まで送られ、
噴射ヘッド７−１から消火対象区画６−１内に放出され
る。Next, the operation of the inert gas fire extinguishing system of the first embodiment in the event of a fire will be described. Now, assuming that a fire has occurred in the fire extinguishing target section 6-1, when a fire discoverer operates a push button (in the case of manual operation) corresponding to the fire extinguishing target section 6-1, an electric signal is output to open the starting gas container. Is sent to the solenoid 12-1, and the solenoid 12-1 operates to open the starting gas container 11-1. The starting gas released by opening the starting gas container 11-1 is first introduced into the selection valve opening device 10-1 to open the selection valve 9-1, and then the non-return valve 14- After passing through the starting gas pipe line 13-1 through the non-return valve 14-A and the non-return valve 14-B, all the fire extinguishing agent storage containers 1 are opened to all the container valves 2. At this time, the non-return valve 14-
2 and cannot pass through the non-return valve 14-3,
The selection valve 9-2 and the selection valve 9-3 are not opened. By the way, the container valve 2 is opened because a pressure control valve for controlling the gas pressure P of the discharge side inert gas extinguishing agent to a reference gas pressure P0 specified by the gas pressure P1 of the constant pressure gas source is used. The reference gas pressure P0 (1
Inert gas restricted to 10 kgf / cm 2 or less is supplied to the container valve 2, the connecting pipe 3, the collecting pipe 4, the selection valve 9-1, and the main pipe 5-1.
And through the branch pipe 8-1 to the jet head 7-1,
It is discharged from the ejection head 7-1 into the fire extinguishing target section 6-1.
【００２６】また、消火対象区画６−２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６−２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１２−２に送ら
れ、ソレノイド１２−２が動作して起動用ガス容器１１
−２が開放される。起動用ガス容器１１−２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１０−２に導入されて選択弁９−２を開放してか
ら、不還弁１４−２を経て起動用ガス管路１３−２を通
り、不還弁１４−Ｂを通過して容器弁２に至って消火剤
貯蔵容器１を３本だけ、すなわち、消火剤貯蔵容器１−
３，１−４，１−５を開放する。このとき、不還弁１４
−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、すなわち、消火剤貯蔵容器１−１，１−２
は開放されない。また、不還弁１４−１及び不還弁１４
−３を通過することができないため、選択弁９−１及び
選択弁９−３は開放されない。ところで、容器弁２に
は、放出側の不活性ガス消火剤のガス圧Ｐを定圧ガス源
のガス圧Ｐ1によって規定される基準ガス圧Ｐ0以下に規
制する制圧弁を用いているため、開放された３本の消火
剤貯蔵容器１−３，１−４，１−５から基準ガス圧Ｐ0
（１１０kgf／cm2）以下に規制された不活性ガスが、容
器弁２、連結管３、集合管４、選択弁９−２、主配管５
−２及び枝管８−２を介して噴射ヘッド７−２まで送ら
れ、噴射ヘッド７−２から消火対象区画６−２内に放出
される。If a fire occurs in the fire extinguishing target section 6-2, when a fire discoverer operates a push button (in the case of manual operation) corresponding to the fire extinguishing target section 6-2, an electric signal is generated for activation. It is sent to the solenoid 12-2 for opening the gas container, and the solenoid 12-2 operates to operate the gas container 11 for starting.
-2 is released. The starting gas released by opening the starting gas container 11-2 is first introduced into the selection valve opening device 10-2 to open the selection valve 9-2, and then the non-return valve 14- 2, through the starting gas line 13-2, through the non-return valve 14-B, to the container valve 2, and only three fire extinguisher storage containers 1, that is, the fire extinguisher storage container 1-
Release 3, 1-4, 1-5. At this time, non-return valve 14
-A, the fire extinguisher storage container 1
Two, namely, fire extinguisher storage containers 1-1 and 1-2.
Is not released. In addition, the non-return valve 14-1 and the non-return valve 14
-3 cannot pass through, so that the selection valves 9-1 and 9-3 are not opened. By the way, the container valve 2 is opened because a pressure control valve for controlling the gas pressure P of the discharge side inert gas extinguishing agent to a reference gas pressure P0 specified by the gas pressure P1 of the constant pressure gas source is used. From the three fire extinguishing agent storage containers 1-3, 1-4, and 1-5.
(110 kgf / cm 2 ) or less of the inert gas regulated to the container valve 2, the connecting pipe 3, the collecting pipe 4, the selection valve 9-2, and the main pipe 5
-2 and to the ejection head 7-2 via the branch pipe 8-2, and discharged from the ejection head 7-2 into the fire extinguishing target section 6-2.
【００２７】また、消火対象区画６−３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６−３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１２−３に送ら
れ、ソレノイド１２−３が動作して起動用ガス容器１１
−３が開放される。起動用ガス容器１１−３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１０−３に導入されて選択弁９−３を開放してか
ら、不還弁１４−３を経て起動用ガス管路１３−３を通
り、容器弁２に至って消火剤貯蔵容器１を１本だけ、す
なわち、消火剤貯蔵容器１−５を開放する。このとき、
不還弁１４−Ｂを通過することができない（したがっ
て、当然、不還弁１４−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、すなわち、消火剤
貯蔵容器１−１，１−２，１−３，１−４は開放されな
い。また、不還弁１４−１及び不還弁１４−２を通過す
ることができないため、選択弁９−１及び選択弁９−２
は開放されない。ところで、容器弁２には、放出側の不
活性ガス消火剤のガス圧Ｐを定圧ガス源のガス圧Ｐ1に
よって規定される基準ガス圧Ｐ0以下に規制する制圧弁
を用いているため、開放された１本の消火剤貯蔵容器１
−５から基準ガス圧Ｐ0（１１０kgf／cm2）以下に規制
された不活性ガスが、容器弁２、連結管３、集合管４、
選択弁９−３、主配管５−３及び枝管８−３を介して噴
射ヘッド７−３まで送られ、噴射ヘッド７−３から消火
対象区画６−３内に放出される。If a fire occurs in the fire extinguishing section 6-3, when a fire discoverer operates the push button (in the case of manual operation) corresponding to the fire extinguishing section 6-3, an electric signal is generated for activation. It is sent to the solenoid 12-3 for opening the gas container, and the solenoid 12-3 operates to operate the gas container 11 for starting.
-3 is released. The starting gas released by opening the starting gas container 11-3 is first introduced into the selection valve opening device 10-3 to open the selection valve 9-3, and then the non-return valve 14- After passing through 3 and passing through the starting gas pipeline 13-3, the container valve 2 is reached, and only one extinguishing agent storage container 1 is opened, that is, the extinguishing agent storage container 1-5 is opened. At this time,
Cannot pass through non-return valve 14-B (and, of course, cannot pass through non-return valve 14-A)
Therefore, four of the fire extinguishing agent storage containers 1, that is, the fire extinguishing agent storage containers 1-1, 1-2, 1-3, and 1-4 are not opened. In addition, since it cannot pass through the non-return valve 14-1 and the non-return valve 14-2, the selection valve 9-1 and the selection valve 9-2
Is not released. By the way, the container valve 2 is opened because a pressure control valve for controlling the gas pressure P of the discharge side inert gas extinguishing agent to a reference gas pressure P0 specified by the gas pressure P1 of the constant pressure gas source is used. One fire extinguisher storage container 1
The inert gas regulated to a reference gas pressure P0 (110 kgf / cm 2 ) or less from −5 is supplied to the container valve 2, the connecting pipe 3, the collecting pipe 4
It is sent to the injection head 7-3 via the selection valve 9-3, the main pipe 5-3, and the branch pipe 8-3, and is discharged from the injection head 7-3 into the fire extinguishing target section 6-3.
【００２８】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（以下に示
す第２実施例及び第３実施例も同様。）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
できる。As described above, the case where the number of fire extinguisher compartments is three and the number of fire extinguisher storage containers 1 is five has been described as an example. However, the number of fire extinguisher compartments, the number of fire extinguisher storage containers 1, and the number of fire extinguisher storage containers 1 are open. The number of fire extinguisher storage containers 1 is not limited to that of the present embodiment (the same is applied to the following second and third embodiments), and can be set arbitrarily as needed. .
【００２９】図４に、本発明の不活性ガス消火設備の第
２実施例を示す。FIG. 4 shows a second embodiment of the inert gas fire extinguishing system of the present invention.
【００３０】本実施例は、上記第１実施例の変形例であ
り、起動用ガス容器１１−１，１１−２，１１−３とは
別に、定圧ガス源として、窒素ガスを充填（３５℃にお
いて、１１０kgf／cm2）した定圧ガス容器１７を設けた
ものである。なお、定圧ガス源として、高圧のガスを充
填したガス容器に圧力調整器を配設したものを使用する
ことにより、この圧力調整器によりガス圧Ｐ1を調整す
ることができるようにしたり、また、定圧ガス源を、高
圧発生機と高圧発生機により発生した圧力を保持するア
キュムレータとで構成することもできる。このように、
定圧ガス容器１７を設けることにより、設置する消火剤
貯蔵容器１の本数、すなわち、容器弁（制圧弁）２の個
数が増加しても、それに応じて定圧ガス容器１７の容量
を容易に変更することができ、所定の基準ガス圧Ｐ0を
維持することができる。また、図中、１５−１，１５−
２，１５−３は、第１実施例の不還弁１４−１，１４−
２，１４−３に代えて、起動用ガス管路１３−１，１３
−２，１３−３に配設したピストン弁であり、また、１
６−１，１６−２，１６−３は、起動用ガス容器１１−
１，１１−２，１１−３と定圧ガス容器１７の間の適所
に配設した不還弁である。なお、不還弁１６−１，１６
−２，１６−３の通過可能方向は、図の矢印の向きで表
している。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。This embodiment is a modified example of the first embodiment. In addition to the starting gas containers 11-1, 11-2, and 11-3, nitrogen gas is charged (35 ° C.) as a constant-pressure gas source. In this embodiment, a constant pressure gas container 17 having a pressure of 110 kgf / cm 2 ) is provided. As a constant pressure gas source, a gas container filled with a high-pressure gas and provided with a pressure regulator is used so that the gas pressure P1 can be adjusted by the pressure regulator. The constant-pressure gas source may be constituted by a high-pressure generator and an accumulator for maintaining the pressure generated by the high-pressure generator. in this way,
By providing the constant pressure gas container 17, even if the number of fire extinguishing agent storage containers 1 to be installed, that is, the number of container valves (suppression valves) 2, increases, the capacity of the constant pressure gas container 17 can be easily changed accordingly. And the predetermined reference gas pressure P0 can be maintained. In the figure, 15-1, 15-
2, 15-3 are non-return valves 14-1, 14- of the first embodiment.
2, 14-3, instead of starting gas pipelines 13-1, 13
−2, 13-3.
6-1, 16-2 and 16-3 are starting gas containers 11-.
This is a non-return valve disposed at an appropriate position between 1, 11-2, 11-3 and the constant-pressure gas container 17. In addition, non-return valves 16-1, 16
The passing possible directions of −2 and 16-3 are represented by the directions of arrows in the figure. The numbers 1, 2, 3 at the end of these members
Corresponds to the numerals 1, 2, and 3 at the end of the fire extinguishing section.
【００３１】次に、上記第２実施例の不活性ガス消火設
備の火災の際の動作について説明する。いま、消火対象
区画６−１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６−１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１２−１に送られ、ソレノイド１２−１が動
作して起動用ガス容器１１−１が開放される。起動用ガ
ス容器１１−１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１０−１に導入されて
選択弁９−１を開放してから、不還弁１６−１を経て定
圧ガス容器１７を開放するとともに、ピストン弁１５−
１を開放する。これにより、定圧ガス容器１７の定圧ガ
スは、ピストン弁１５−１を経て起動用ガス（定圧ガ
ス）管路１３−１を通り、不還弁１４−Ａ及び不還弁１
４−Ｂを通過して全ての容器弁２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、起動用ガスは、不
還弁１６−２及び不還弁１６−３を通過することができ
ないため、選択弁９−２及び選択弁９−３並びにピスト
ン弁１５−２及びピストン弁１５−３は開放されない。
ところで、容器弁２には、放出側の不活性ガス消火剤の
ガス圧Ｐを定圧ガス源のガス圧Ｐ1によって規定される
基準ガス圧Ｐ0以下に規制する制圧弁を用いているた
め、開放された５本の消火剤貯蔵容器１から基準ガス圧
Ｐ0（１１０kgf／cm2）以下に規制された不活性ガス
が、容器弁２、連結管３、集合管４、選択弁９−１、主
配管５−１及び枝管８−１を介して噴射ヘッド７−１ま
で送られ、噴射ヘッド７−１から消火対象区画６−１内
に放出される。Next, the operation of the inert gas extinguishing system of the second embodiment in the event of a fire will be described. Now, assuming that a fire has occurred in the fire extinguishing target section 6-1, when a fire discoverer operates a push button (in the case of manual operation) corresponding to the fire extinguishing target section 6-1, an electric signal is output to open the starting gas container. Is sent to the solenoid 12-1, and the solenoid 12-1 operates to open the starting gas container 11-1. The starting gas released by opening the starting gas container 11-1 is first introduced into the selection valve opening device 10-1 to open the selection valve 9-1, and then the non-return valve 16- 1 to open the constant-pressure gas container 17 and the piston valve 15-
Release 1. Thereby, the constant-pressure gas in the constant-pressure gas container 17 passes through the piston gas 15-1 and the starting gas (constant-pressure gas) line 13-1, passes through the nonreturn valve 14-A and the nonreturn valve 1
After passing through 4-B and reaching all the container valves 2, all five fire extinguishing agent storage containers 1 are opened. At this time, since the starting gas cannot pass through the non-return valve 16-2 and the non-return valve 16-3, the selection valve 9-2 and the selection valve 9-3, and the piston valve 15-2 and the piston valve 15 -3 is not released.
By the way, the container valve 2 is opened because a pressure control valve for controlling the gas pressure P of the discharge side inert gas extinguishing agent to a reference gas pressure P0 specified by the gas pressure P1 of the constant pressure gas source is used. An inert gas regulated to a reference gas pressure P0 (110 kgf / cm 2 ) or less is supplied from the five extinguishing agent storage containers 1 to the container valve 2, the connecting pipe 3, the collecting pipe 4, the selection valve 9-1, and the main pipe. It is sent to the ejection head 7-1 via the 5-1 and the branch pipe 8-1, and is discharged from the ejection head 7-1 into the fire extinguishing target section 6-1.
【００３２】また、消火対象区画６−２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６−２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１２−２に送ら
れ、ソレノイド１２−２が動作して起動用ガス容器１１
−２が開放される。起動用ガス容器１１−２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１０−２に導入されて選択弁９−２を開放してか
ら、不還弁１６−２を経て定圧ガス容器１７を開放する
とともに、ピストン弁１５−２を開放する。これによ
り、定圧ガス容器１７の定圧ガスは、ピストン弁１５−
２を経て起動用ガス（定圧ガス）管路１３−２を通り、
不還弁１４−Ｂを通過して容器弁２に至って消火剤貯蔵
容器１を３本だけ、すなわち、消火剤貯蔵容器１−３，
１−４，１−５を開放する。このとき、不還弁１４−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、すなわち、消火剤貯蔵容器１−１，１−２は開
放されない。また、起動用ガスは、不還弁１６−１及び
不還弁１６−３を通過することができないため、選択弁
９−１及び選択弁９−３並びにピストン弁１５−１及び
ピストン弁１５−３は開放されない。ところで、容器弁
２には、放出側の不活性ガス消火剤のガス圧Ｐを定圧ガ
ス源のガス圧Ｐ1によって規定される基準ガス圧Ｐ0以下
に規制する制圧弁を用いているため、開放された３本の
消火剤貯蔵容器１−３，１−４，１−５から基準ガス圧
Ｐ0（１１０kgf／cm2）以下に規制された不活性ガス
が、容器弁２、連結管３、集合管４、選択弁９−２、主
配管５−２及び枝管８−２を介して噴射ヘッド７−２ま
で送られ、噴射ヘッド７−２から消火対象区画６−２内
に放出される。If a fire occurs in the fire extinguishing target section 6-2, when a fire discoverer operates a push button (in the case of manual operation) corresponding to the fire extinguishing target section 6-2, an electric signal for starting is generated. It is sent to the solenoid 12-2 for opening the gas container, and the solenoid 12-2 operates to operate the gas container 11 for starting.
-2 is released. The starting gas released by opening the starting gas container 11-2 is first introduced into the selection valve opening device 10-2 to open the selection valve 9-2, and then the non-return valve 16- The constant pressure gas container 17 is opened via 2 and the piston valve 15-2 is opened. Thereby, the constant-pressure gas in the constant-pressure gas container 17 is supplied to the piston valve 15-.
2 through the starting gas (constant pressure gas) line 13-2,
After passing through the non-return valve 14-B and reaching the container valve 2, only three fire extinguishing agent storage containers 1, that is, the fire extinguishing agent storage containers 1-3,
Release 1-4 and 1-5. At this time, the non-return valve 14-A
, Two of the fire extinguishing agent storage containers 1, that is, the fire extinguishing agent storage containers 1-1 and 1-2 are not opened. Further, since the starting gas cannot pass through the non-return valve 16-1 and the non-return valve 16-3, the selection valve 9-1 and the selection valve 9-3, and the piston valve 15-1 and the piston valve 15- 3 is not released. By the way, the container valve 2 is opened because a pressure control valve for controlling the gas pressure P of the discharge side inert gas extinguishing agent to a reference gas pressure P0 specified by the gas pressure P1 of the constant pressure gas source is used. An inert gas regulated to a reference gas pressure P0 (110 kgf / cm 2 ) or less is supplied from the three fire extinguishing agent storage containers 1-3, 1-4, and 1-5 to the container valve 2, the connecting pipe 3, and the collecting pipe. 4. It is sent to the injection head 7-2 via the selection valve 9-2, the main pipe 5-2, and the branch pipe 8-2, and is discharged from the injection head 7-2 into the fire extinguishing section 6-2.
【００３３】また、消火対象区画６−３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６−３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１２−３に送ら
れ、ソレノイド１２−３が動作して起動用ガス容器１１
−３が開放される。起動用ガス容器１１−３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１０−３に導入されて選択弁９−３を開放してか
ら、不還弁１６−３を経て定圧ガス容器１７を開放する
とともに、ピストン弁１５−３を開放する。これによ
り、定圧ガス容器１７の定圧ガスは、ピストン弁１５−
３を経て起動用ガス（定圧ガス）管路１３−３を通り、
容器弁２に至って消火剤貯蔵容器１を１本だけ、すなわ
ち、消火剤貯蔵容器１−５を開放する。このとき、不還
弁１４−Ｂを通過することができない（したがって、当
然、不還弁１４−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、すなわち、消火剤貯蔵容
器１−１，１−２，１−３，１−４は開放されない。ま
た、起動用ガスは、不還弁１６−１及び不還弁１６−２
を通過することができないため、選択弁９−１及び選択
弁９−２並びにピストン弁１５−１及びピストン弁１５
−２は開放されない。ところで、容器弁２には、放出側
の不活性ガス消火剤のガス圧Ｐを定圧ガス源のガス圧Ｐ
1によって規定される基準ガス圧Ｐ0以下に規制する制圧
弁を用いているため、開放された１本の消火剤貯蔵容器
１−５から基準ガス圧Ｐ0（１１０kgf／cm2）以下に規
制された不活性ガスが、容器弁２、連結管３、集合管
４、選択弁９−３、主配管５−３及び枝管８−３を介し
て噴射ヘッド７−３まで送られ、噴射ヘッド７−３から
消火対象区画６−３内に放出される。If a fire occurs in the fire extinguishing target section 6-3, when a fire discoverer operates the push button (in the case of manual operation) corresponding to the fire extinguishing target section 6-3, an electric signal is generated for starting. It is sent to the solenoid 12-3 for opening the gas container, and the solenoid 12-3 operates to operate the gas container 11 for starting.
-3 is released. The starting gas released by opening the starting gas container 11-3 is first introduced into the selection valve opening device 10-3 to open the selection valve 9-3, and then the non-return valve 16- 3 and the constant pressure gas container 17 is opened, and the piston valve 15-3 is opened. Thereby, the constant-pressure gas in the constant-pressure gas container 17 is supplied to the piston valve 15-.
3 through the starting gas (constant pressure gas) line 13-3,
Only one extinguishing agent storage container 1 is reached to the container valve 2, that is, the extinguishing agent storage container 1-5 is opened. At this time, since it cannot pass through the non-return valve 14-B (and, of course, also cannot pass through the non-return valve 14-A),
Four of the fire extinguishing agent storage containers 1, that is, the fire extinguishing agent storage containers 1-1, 1-2, 1-3, and 1-4 are not opened. The starting gas is supplied to the non-return valve 16-1 and the non-return valve 16-2.
, The selection valve 9-1 and the selection valve 9-2, and the piston valve 15-1 and the piston valve 15
-2 is not released. By the way, the gas pressure P of the inert gas extinguishing agent on the discharge side is supplied to the container valve 2 by the gas pressure P of the constant-pressure gas source.
Since the control valve is used to regulate the gas pressure to be equal to or lower than the reference gas pressure P0 specified by 1, the fire extinguisher storage container 1-5 is controlled to have the gas pressure lower than the reference gas pressure P0 (110 kgf / cm 2 ). The inert gas is sent to the ejection head 7-3 through the container valve 2, the connection pipe 3, the collecting pipe 4, the selection valve 9-3, the main pipe 5-3, and the branch pipe 8-3, and the ejection head 7- 3 is discharged into the fire extinguishing target section 6-3.
【００３４】図５に、本発明の不活性ガス消火設備の第
３実施例を示す。FIG. 5 shows a third embodiment of the inert gas fire extinguishing system of the present invention.
【００３５】本実施例は、上記第１実施例の変形例であ
り、消火剤貯蔵容器１と選択弁９−１，９−２，９−３
とを接続する集合管４の適所に、放出側の不活性ガス消
火剤のガス圧Ｐを定圧ガス源のガス圧Ｐ1によって規定
される基準ガス圧Ｐ0以下に規制する制圧弁１８を設け
るとともに、起動用ガス容器１１−１，１１−２，１１
−３とは別に、定圧ガス源として、窒素ガスを充填（３
５℃において、１１０kgf／cm2）した定圧ガス容器１９
を設けたものである。なお、定圧ガス源として、上記第
１実施例のように、起動用ガス容器１１−１，１１−
２，１１−３を利用するように構成したり、高圧のガス
を充填したガス容器に圧力調整器を配設したものを使用
することにより、この圧力調整器によりガス圧Ｐ1を調
整することができるようにしたり、また、定圧ガス源
を、高圧発生機と高圧発生機により発生した圧力を保持
するアキュムレータとで構成することもできる。このよ
うに、集合管４に制圧弁１８を設けることにより、容器
弁２に通常の容器弁を使用することができ、設備費を低
廉にすることができる。なお、消火剤貯蔵容器１から制
圧弁１８に至るまでの容器弁２、連結管３及び集合管４
等の消火設備の一次側機器には不活性ガス消火剤の高い
ガス圧がかかることとなり、このため、これら一次側機
器は、この高いガス圧に耐えるように構成する必要があ
るが、集合管４等は、主配管５−１，５−２，５−３に
比べ管の内径が小さいため、耐圧が高く、このため、消
火設備の一次側機器の耐圧グレードを上げる必要がない
ため、設備費を低廉にすることができるとともに、既存
の設備にもそのまま適用することができる。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。This embodiment is a modification of the first embodiment, in which the fire extinguishing agent storage container 1 and the selection valves 9-1, 9-2, 9-3 are provided.
A pressure control valve 18 for regulating the gas pressure P of the inert gas extinguishing agent on the discharge side to a reference gas pressure P0 or less defined by the gas pressure P1 of the constant pressure gas source is provided at an appropriate position of the collecting pipe 4 connecting Starting gas containers 11-1, 11-2, 11
-3, filled with nitrogen gas as a constant pressure gas source (3
110 kgf / cm 2 ) constant pressure gas container 19 at 5 ° C.
Is provided. As the constant pressure gas source, as in the first embodiment, the starting gas containers 11-1 and 11-
2, 11-3 or by using a gas container filled with a high-pressure gas and having a pressure regulator disposed therein, the gas pressure P1 can be regulated by the pressure regulator. Alternatively, the constant-pressure gas source may be constituted by a high-pressure generator and an accumulator for maintaining the pressure generated by the high-pressure generator. Thus, by providing the pressure-reducing valve 18 in the collecting pipe 4, a normal container valve can be used for the container valve 2, and the equipment cost can be reduced. In addition, the container valve 2, the connecting pipe 3, and the collecting pipe 4 from the fire extinguishing agent storage container 1 to the suppression valve 18.
High pressure of the inert gas fire extinguisher will be applied to the primary equipment of fire extinguishing equipment such as this, and it is necessary to configure these primary equipment to withstand this high gas pressure. No. 4 etc. have a higher withstand pressure because the inner diameter of the pipe is smaller than that of the main pipes 5-1, 5-2 and 5-3. Therefore, it is not necessary to increase the withstand pressure grade of the primary equipment of the fire extinguishing equipment. The cost can be reduced, and it can be applied to existing equipment as it is. The numbers 1, 2, and 3 at the end of these members respectively correspond to the numbers 1, 2, and 3 at the end of the fire extinguishing target section.
【００３６】この制圧弁１８は、図６に示すように、上
記第１実施例の容器弁２に用いた制圧弁と基本的に同一
の構造及び同一の作用をするもので、不活性ガス消火剤
の流路１８１に設けた流路弁１８２と、不活性ガス消火
剤の流路１８１を閉鎖する方向に流路弁１８２を付勢す
るばね１８３と、定圧ガス容器１９からのガス供給口１
８４と、一端をガス供給口１８４に、他端を不活性ガス
消火剤の流路１８１の放出側に接続したシリンダ１８５
内に配設したピストン１８６と、不活性ガス消火剤の流
路１８１を開放する方向に流路弁１８２を操作するピス
トン１８６の端部に形成した操作棒１８７と、流路弁１
８２とは逆方向にピストン１８６を付勢するばね１８８
とから構成し、制圧弁１８の放出側の不活性ガス消火剤
のガス圧Ｐを定圧ガス源のガス圧Ｐ1によって規定され
る基準ガス圧Ｐ0以下に規制するようにしたものであ
る。As shown in FIG. 6, the pressure control valve 18 has basically the same structure and the same operation as the pressure control valve used in the container valve 2 of the first embodiment. Flow path valve 182 provided in the agent flow path 181, a spring 183 for urging the flow path valve 182 in a direction to close the inert gas fire extinguishing agent flow path 181, and the gas supply port 1 from the constant pressure gas container 19.
84 and a cylinder 185 having one end connected to the gas supply port 184 and the other end connected to the discharge side of the flow path 181 for the inert gas fire extinguishing agent.
A control rod 187 formed at an end of the piston 186 for operating the flow valve 182 in a direction to open the flow path 181 of the inert gas fire extinguishing agent;
Spring 188 biasing piston 186 in the opposite direction to 82
The gas pressure P of the inert gas fire extinguishing agent on the discharge side of the control valve 18 is regulated to a reference gas pressure P0 or less defined by the gas pressure P1 of the constant pressure gas source.
【００３７】次に、上記第３実施例の不活性ガス消火設
備の火災の際の動作について説明する。いま、消火対象
区画６−１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６−１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１２−１に送られ、ソレノイド１２−１が動
作して起動用ガス容器１１−１が開放される。起動用ガ
ス容器１１−１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１０−１に導入されて
選択弁９−１を開放してから、不還弁１４−１を経て定
圧ガス容器１９を開放するとともに、起動用ガス管路１
３−１を通り、不還弁１４−Ａ及び不還弁１４−Ｂを通
過して全ての容器弁２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１４−２及び不還弁１
４−３を通過することができないため、選択弁９−２及
び選択弁９−３は開放されない。ところで、集合管４に
は、放出側の不活性ガス消火剤のガス圧Ｐを定圧ガス源
のガス圧Ｐ1によって規定される基準ガス圧Ｐ0以下に規
制する制圧弁１８を設けているため、開放された５本の
消火剤貯蔵容器１から放出され、容器弁２及び連結管３
を介して集合管４まで送られた不活性ガスは、制圧弁１
８により基準ガス圧Ｐ0（１１０kgf／cm2）以下に規制
され、選択弁９−１、主配管５−１及び枝管８−１を介
して噴射ヘッド７−１まで送られ、噴射ヘッド７−１か
ら消火対象区画６−１内に放出される。Next, the operation of the inert gas extinguishing system of the third embodiment in the event of a fire will be described. Now, assuming that a fire has occurred in the fire extinguishing target section 6-1, when a fire discoverer operates a push button (in the case of manual operation) corresponding to the fire extinguishing target section 6-1, an electric signal is output to open the starting gas container. Is sent to the solenoid 12-1, and the solenoid 12-1 operates to open the starting gas container 11-1. The starting gas released by opening the starting gas container 11-1 is first introduced into the selection valve opening device 10-1 to open the selection valve 9-1, and then the non-return valve 14- 1 to open the constant-pressure gas container 19 and
After passing through 3-1 and passing through the non-return valves 14-A and 14-B, all the container valves 2 are opened, and all five fire extinguisher storage containers 1 are opened. At this time, the non-return valve 14-2 and the non-return valve 1
Since it cannot pass through 4-3, the selection valves 9-2 and 9-3 are not opened. By the way, since the collecting pipe 4 is provided with the pressure control valve 18 for regulating the gas pressure P of the discharge side inert gas fire extinguishing agent to a reference gas pressure P0 defined by the gas pressure P1 of the constant-pressure gas source, it is opened. The five extinguishing agent storage containers 1 that have been released, the container valve 2 and the connecting pipe 3
The inert gas sent to the collecting pipe 4 through the
8, the gas pressure is regulated to be equal to or lower than the reference gas pressure P0 (110 kgf / cm 2 ), and is sent to the ejection head 7-1 via the selection valve 9-1, the main pipe 5-1 and the branch pipe 8-1, and the ejection head 7- 1 is discharged into the fire extinguishing target section 6-1.
【００３８】また、消火対象区画６−２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６−２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１２−２に送ら
れ、ソレノイド１２−２が動作して起動用ガス容器１１
−２が開放される。起動用ガス容器１１−２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１０−２に導入されて選択弁９−２を開放してか
ら、不還弁１４−２を経て定圧ガス容器１９を開放する
とともに、起動用ガス管路１３−２を通り、不還弁１４
−Ｂを通過して容器弁２に至って消火剤貯蔵容器１を３
本だけ、すなわち、消火剤貯蔵容器１−３，１−４，１
−５を開放する。このとき、不還弁１４−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、す
なわち、消火剤貯蔵容器１−１，１−２は開放されな
い。また、不還弁１４−１及び不還弁１４−３を通過す
ることができないため、選択弁９−１及び選択弁９−３
は開放されない。ところで、集合管４には、放出側の不
活性ガス消火剤のガス圧Ｐを定圧ガス源のガス圧Ｐ1に
よって規定される基準ガス圧Ｐ0以下に規制する制圧弁
１８を設けているため、開放された３本の消火剤貯蔵容
器１−３，１−４，１−５から放出され、容器弁２及び
連結管３を介して集合管４まで送られた不活性ガスは、
制圧弁１８により基準ガス圧Ｐ0（１１０kgf／cm2）以
下に規制され、選択弁９−２、主配管５−２及び枝管８
−２を介して噴射ヘッド７−２まで送られ、噴射ヘッド
７−２から消火対象区画６−２内に放出される。If a fire occurs in the fire extinguishing target section 6-2, when a fire discoverer operates a push button (in the case of manual operation) corresponding to the fire extinguishing target section 6-2, an electric signal for starting is generated. It is sent to the solenoid 12-2 for opening the gas container, and the solenoid 12-2 operates to operate the gas container 11 for starting.
-2 is released. The starting gas released by opening the starting gas container 11-2 is first introduced into the selection valve opening device 10-2 to open the selection valve 9-2, and then the non-return valve 14- 2 and open the constant-pressure gas container 19, and through the starting gas line 13-2, through the non-return valve 14
-B to the container valve 2 and the fire extinguisher storage container 1
Only books, that is, fire extinguisher storage containers 1-3, 1-4, 1
Release -5. At this time, since it cannot pass through the non-return valve 14-A, two of the extinguishing agent storage containers 1, that is, the extinguishing agent storage containers 1-1 and 1-2 are not opened. Further, since the gas cannot pass through the non-return valve 14-1 and the non-return valve 14-3, the selection valve 9-1 and the selection valve 9-3 are not allowed.
Is not released. By the way, since the collecting pipe 4 is provided with the pressure control valve 18 for regulating the gas pressure P of the discharge side inert gas fire extinguishing agent to a reference gas pressure P0 defined by the gas pressure P1 of the constant-pressure gas source, it is opened. The inert gas discharged from the three fire extinguishing agent storage containers 1-3, 1-4, and 1-5 sent to the collecting pipe 4 via the container valve 2 and the connecting pipe 3 is:
The gas pressure is controlled to be equal to or lower than the reference gas pressure P0 (110 kgf / cm 2 ) by the suppression valve 18, and the selection valve 9-2, the main pipe 5-2 and the branch pipe 8 are controlled.
-2 to the ejection head 7-2, and is discharged from the ejection head 7-2 into the fire extinguishing target section 6-2.
【００３９】また、消火対象区画６−３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６−３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１２−３に送ら
れ、ソレノイド１２−３が動作して起動用ガス容器１１
−３が開放される。起動用ガス容器１１−３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１０−３に導入されて選択弁９−３を開放してか
ら、不還弁１４−３を経て定圧ガス容器１９を開放する
とともに、起動用ガス管路１３−３を通り、容器弁２に
至って消火剤貯蔵容器１を１本だけ、すなわち、消火剤
貯蔵容器１−５を開放する。このとき、不還弁１４−Ｂ
を通過することができない（したがって、当然、不還弁
１４−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、すなわち、消火剤貯蔵容器１−１，
１−２，１−３，１−４は開放されない。また、不還弁
１４−１及び不還弁１４−２を通過することができない
ため、選択弁９−１及び選択弁９−２は開放されない。
ところで、集合管４には、放出側の不活性ガス消火剤の
ガス圧Ｐを定圧ガス源のガス圧Ｐ1によって規定される
基準ガス圧Ｐ0以下に規制する制圧弁１８を設けている
ため、開放された１本の消火剤貯蔵容器１−５からから
放出され、容器弁２及び連結管３を介して集合管４まで
送られた不活性ガスは、制圧弁１８により基準ガス圧Ｐ
0（１１０kgf／cm2）以下に規制され、選択弁９−３、
主配管５−３及び枝管８−３を介して噴射ヘッド７−３
まで送られ、噴射ヘッド７−３から消火対象区画６−３
内に放出される。If a fire occurs in the fire extinguisher section 6-3, when a fire discoverer operates the push button (in the case of manual operation) corresponding to the fire extinguisher section 6-3, an electric signal is generated for activation. It is sent to the solenoid 12-3 for opening the gas container, and the solenoid 12-3 operates to operate the gas container 11 for starting.
-3 is released. The starting gas released by opening the starting gas container 11-3 is first introduced into the selection valve opening device 10-3 to open the selection valve 9-3, and then the non-return valve 14- 3, the constant-pressure gas container 19 is opened, and only one fire-extinguishing agent storage container 1 is passed through the starting gas pipeline 13-3 to the container valve 2, that is, the fire-extinguishing agent storage container 1-5 is opened. . At this time, the non-return valve 14-B
(Therefore, of course, also the non-return valve 14-A cannot pass), so four of the fire-extinguishing agent storage containers 1, namely, the fire-extinguishing agent storage containers 1-1 and 1-1,
1-2, 1-3 and 1-4 are not released. Further, since the gas cannot pass through the non-return valves 14-1 and 14-2, the selection valves 9-1 and 9-2 are not opened.
By the way, since the collecting pipe 4 is provided with the pressure control valve 18 for regulating the gas pressure P of the discharge side inert gas fire extinguishing agent to a reference gas pressure P0 defined by the gas pressure P1 of the constant-pressure gas source, it is opened. The inert gas discharged from one extinguishing agent storage container 1-5 and sent to the collecting pipe 4 via the container valve 2 and the connecting pipe 3 is supplied to the reference gas pressure P by the control valve 18.
0 (110 kgf / cm 2 ) or less, the selection valve 9-3,
Injection head 7-3 via main pipe 5-3 and branch pipe 8-3
To the fire extinguishing head 7-3 and the fire extinguishing section 6-3.
Released into
【００４０】[0040]
【発明の効果】本発明によれば、消火設備の二次側機器
の耐圧グレードを上げることなく不活性ガス消火剤の充
填圧力を高めることができ、消火剤貯蔵容器の設置スペ
ースを小さくすることができ、消火設備の二次側機器の
耐圧グレードを上げる必要がないことと相俟って、設備
費を低廉にすることができるとともに、消火設備の二次
側機器の耐圧グレードを上げる必要がないため、消火剤
貯蔵容器内にガス状態で貯蔵する不活性ガス消火剤を既
存の設備にもそのまま適用することができる。また、こ
の制圧弁は、消火剤貯蔵容器内の不活性ガス消火剤の圧
力が、基準ガス圧以下に低下するまでは、制圧弁の放出
側の不活性ガス消火剤のガス圧を基準ガス圧に保持する
機能を有しているため、不活性ガス消火剤の放出により
消火剤貯蔵容器内の不活性ガス消火剤の圧力が低下した
場合でも、不活性ガス消火剤の放出量を一定に保つこと
ができることから、所消火設備の容量を有効に利用する
ことができ、設備費を低廉にすることができる。According to the present invention, the filling pressure of the inert gas fire extinguishing agent can be increased without increasing the pressure resistance grade of the secondary equipment of the fire extinguishing equipment, and the installation space for the fire extinguishing agent storage container can be reduced. It is not necessary to raise the pressure resistance grade of the secondary equipment of the fire extinguishing equipment, so that the equipment cost can be reduced and it is necessary to raise the pressure resistance grade of the secondary equipment of the fire extinguishing equipment. Therefore, the inert gas fire extinguishing agent stored in a gaseous state in the fire extinguishing agent storage container can be applied to existing equipment as it is. In addition, this pressure control valve keeps the gas pressure of the inert gas fire extinguishing agent on the discharge side of the pressure suppressing valve until the pressure of the inert gas fire extinguishing agent in the fire extinguishing agent storage container falls below the reference gas pressure. Even if the pressure of the inert gas fire extinguisher in the fire extinguisher storage container drops due to the release of the inert gas fire extinguisher, the release amount of the inert gas fire extinguisher is kept constant. Therefore, the capacity of the fire extinguishing equipment can be effectively used, and the equipment cost can be reduced.
【図１】本発明の不活性ガス消火設備の第１実施例を示
す図である。FIG. 1 is a diagram showing a first embodiment of an inert gas fire extinguishing system of the present invention.
【図２】本発明の不活性ガス消火設備用制圧弁の第１実
施例を示す図であり、（ａ）はその全体図、（ｂ）は流
路弁の平面図、（ｃ）は同縦断面図である。FIG. 2 is a view showing a first embodiment of a suppression valve for an inert gas fire extinguishing equipment according to the present invention, in which (a) is an overall view, (b) is a plan view of a flow path valve, and (c) is the same. It is a longitudinal cross-sectional view.
【図３】不活性ガス消火設備用制圧弁の作用の説明図で
ある。FIG. 3 is an explanatory diagram of an operation of a suppression valve for an inert gas fire extinguishing equipment.
【図４】本発明の不活性ガス消火設備の第２実施例を示
す図である。FIG. 4 is a view showing a second embodiment of the inert gas fire extinguishing system of the present invention.
【図５】本発明の不活性ガス消火設備の第３実施例を示
す図である。FIG. 5 is a view showing a third embodiment of the inert gas fire extinguishing system of the present invention.
【図６】本発明の不活性ガス消火設備用制圧弁の第３実
施例を示す図である。FIG. 6 is a view showing a third embodiment of the suppression valve for the inert gas fire extinguishing equipment of the present invention.
１ 消火剤貯蔵容器 ２ 容器弁（制圧弁） ２１ 不活性ガス消火剤の流路 ２２ 流路弁 ２３ ばね ２４ ガス供給口 ２５ シリンダ ２６ ピストン ２７ 操作棒 ２８ ばね ６ 消火対象区画 ７ 噴射ヘッド １１ 起動用ガス容器（定圧ガス源） １７ 定圧ガス容器 １８ 制圧弁 １８１ 不活性ガス消火剤の流路 １８２ 流路弁 １８３ ばね １８４ ガス供給口 １８５ シリンダ １８６ ピストン １８７ 操作棒 １８８ ばね １９ 定圧ガス容器 Ｐ 不活性ガス消火剤のガス圧 Ｐ0 基準ガス圧 Ｐ1 定圧ガス源のガス圧 REFERENCE SIGNS LIST 1 fire extinguishing agent storage container 2 container valve (suppression valve) 21 flow path of inert gas fire extinguishing agent 22 flow path valve 23 spring 24 gas supply port 25 cylinder 26 piston 27 operating rod 28 spring 6 fire extinguishing target section 7 injection head 11 start-up Gas container (constant pressure gas source) 17 Constant pressure gas container 18 Suppression valve 181 Inert gas extinguisher flow path 182 Flow path valve 183 Spring 184 Gas supply port 185 Cylinder 186 Piston 187 Operation rod 188 Spring 19 Constant pressure gas container P Inactive gas Gas pressure of fire extinguishing agent P0 Reference gas pressure P1 Gas pressure of constant pressure gas source
Claims (6)
ている不活性ガス消火剤を消火対象区画内に放出し、消
火対象区画内の不活性ガス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不活性ガス
消火設備において、消火剤貯蔵容器の容器弁に、放出側
の不活性ガス消火剤のガス圧を定圧ガス源のガス圧によ
って規定される基準ガス圧以下に規制する制圧弁を用い
たことを特徴とする不活性ガス消火設備。1. An inert gas fire extinguishing agent stored in a gaseous state in a fire extinguishing agent storage container is discharged into a fire extinguishing target compartment, and the concentration of the inert gas fire extinguishing agent in the fire extinguishing target compartment is maintained at a flame-extinguishing concentration or higher. In the inert gas fire extinguishing system, the gas pressure of the inert gas extinguishing agent on the discharge side is below the reference gas pressure specified by the gas pressure of the constant pressure gas source. An inert gas fire extinguishing system characterized by the use of a pressure-reducing valve that regulates fire.
ている不活性ガス消火剤を消火対象区画内に放出し、消
火対象区画内の不活性ガス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不活性ガス
消火設備において、消火剤貯蔵容器と選択弁とを接続す
る集合管に、放出側の不活性ガス消火剤のガス圧を定圧
ガス源のガス圧によって規定される基準ガス圧以下に規
制する制圧弁を配設したことを特徴とする不活性ガス消
火設備。2. Extinguishing an inert gas fire extinguishing agent stored in a gaseous state in a fire extinguishing agent storage container into a fire extinguishing target compartment, and maintaining the concentration of the inert gas fire extinguishing agent in the fire extinguishing target compartment equal to or higher than the fire extinguishing concentration. In the inert gas fire extinguishing system, the gas pressure of the discharge side inert gas fire extinguishing agent is specified by the gas pressure of the constant pressure gas source in the collecting pipe connecting the fire extinguisher storage container and the selection valve. An inert gas fire extinguishing system characterized by having a control valve for regulating the gas pressure to a level not higher than a reference gas pressure.
とを特徴とする請求項１又は２記載の不活性ガス消火設
備。3. The inert gas fire extinguishing system according to claim 1, wherein the gas pressure of the constant-pressure gas source is adjustable.
不活性ガス消火剤を充填した消火剤貯蔵容器を用いたこ
とを特徴とする請求項１、２又は３記載の不活性ガス消
火設備。4. An inert gas fire extinguishing system according to claim 1, wherein a fire extinguisher storage container filled with an inert gas fire extinguishing agent at 35 ° C. and 180 kgf / cm 2 or more is used.
とを特徴とする請求項１、２、３又は４記載の不活性ガ
ス消火設備。5. The inert gas fire extinguishing system according to claim 1, wherein nitrogen gas is used as the inert gas fire extinguishing agent.
と、不活性ガス消火剤の流路を閉鎖する方向に流路弁を
付勢するばねと、定圧ガス源のガス供給口と、一端をガ
ス供給口に、他端を不活性ガス消火剤の流路の放出側に
接続したシリンダ内に配設したピストンと、不活性ガス
消火剤の流路を開放する方向に流路弁を操作するピスト
ンの端部に形成した操作棒とからなることを特徴とする
不活性ガス消火設備用制圧弁。6. A flow path valve provided in a flow path of an inert gas fire extinguishing agent, a spring for urging the flow path valve in a direction to close the flow path of the inert gas fire extinguishing agent, and a gas supply of a constant pressure gas source. Port and a piston disposed in a cylinder having one end connected to the gas supply port and the other end connected to the discharge side of the flow path of the inert gas fire extinguishing agent. A control valve for an inert gas fire extinguishing facility, comprising a control rod formed at an end of a piston for operating a road valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03358898A JP3605277B2 (en) | 1998-01-30 | 1998-01-30 | How to use inert gas fire extinguishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP03358898A JP3605277B2 (en) | 1998-01-30 | 1998-01-30 | How to use inert gas fire extinguishing equipment |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7138631A Division JP2813318B2 (en) | 1995-05-12 | 1995-05-12 | Inert gas fire extinguishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10192436A true JPH10192436A (en) | 1998-07-28 |
| JP3605277B2 JP3605277B2 (en) | 2004-12-22 |
Family
ID=12390680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP03358898A Expired - Lifetime JP3605277B2 (en) | 1998-01-30 | 1998-01-30 | How to use inert gas fire extinguishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3605277B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003088595A (en) * | 2001-09-18 | 2003-03-25 | Koatsu Co Ltd | Inactive gas fire extinguishing equipment |
| CN104324464A (en) * | 2014-09-24 | 2015-02-04 | 广州市佰力消防设备有限公司 | Automatic fire extinguishing system using gaseous extinguishing agent |
-
1998
- 1998-01-30 JP JP03358898A patent/JP3605277B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003088595A (en) * | 2001-09-18 | 2003-03-25 | Koatsu Co Ltd | Inactive gas fire extinguishing equipment |
| CN104324464A (en) * | 2014-09-24 | 2015-02-04 | 广州市佰力消防设备有限公司 | Automatic fire extinguishing system using gaseous extinguishing agent |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3605277B2 (en) | 2004-12-22 |
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