JP2009065997A - Fire extinguishing system - Google Patents

Fire extinguishing system Download PDF

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JP2009065997A
JP2009065997A JP2007234098A JP2007234098A JP2009065997A JP 2009065997 A JP2009065997 A JP 2009065997A JP 2007234098 A JP2007234098 A JP 2007234098A JP 2007234098 A JP2007234098 A JP 2007234098A JP 2009065997 A JP2009065997 A JP 2009065997A
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fire
water
spread inhibitor
gas
inhibitor
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Akihiko Yokoo
明彦 横尾
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Nohmi Bosai Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide fire extinguishing system capable of forming a gel layer, capable of inhibiting spread of fire for a long time, on the surface of an object to be protected from fire. <P>SOLUTION: The fire extinguishing system is configured to eject a fire-spread preventing agent from a nozzle to the object to be protected from fire so as to coat the surface of the object with the gel layer of the liquid fire-spread preventing agent including water. The water includes bubbles. The fire-spread preventing agent includes a high water-absorbent resin or temperature-sensitive high water-absorbent resin. Inert gas or fluorine gas is included in the bubbles. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、火災の延焼を抑制する水を含む延焼抑制剤を防護対象物に放射する消火設備に関するものである。   The present invention relates to a fire extinguishing facility that radiates a fire protection agent containing water that suppresses the spread of fire to an object to be protected.

従来、火災時に燃焼物からの接炎および放射熱による延焼を抑制する一般的に行われている手段としては、燃焼物からの接炎および輻射熱の影響を受ける面に、断続的または継続的な注水を行って冷却し、延焼を抑制することである。
また、注水させた水が放射熱によって気化することを遅延させ延焼を防止する方法として、水とアクリル酸重合体、または水とアクリル酸とメタクリル酸との共重合体のアルカリ中和物からなる水ゲルによる方法が提案されている（例えば、特許文献１参照）。 Conventionally, as a general means to suppress flame contact from flammables and radiant heat from fire during a fire, the surface affected by flame contact and radiant heat from the combustibles is intermittent or continuous. Water injection is performed to cool and suppress the spread of fire.
Further, as a method for preventing the spread of fire by delaying the vaporization of the injected water by radiant heat, it comprises an alkali neutralized product of water and acrylic acid polymer or a copolymer of water, acrylic acid and methacrylic acid. A method using water gel has been proposed (see, for example, Patent Document 1).

この水ゲルによる方法においては、建物等の外壁や天井面に付着させることは容易にできるが、放射熱を受けて水ゲルの温度が上昇すると粘度が下がり、ガラス等の表面が滑らかな垂直面にゲル層を形成させようとしても、滑り落ちてしまうため、延焼抑制の面で十分なゲル層を形成させることが困難な状況であった。
そこで、受熱によって熱ゲル化する性状を有する、粉粒体のヒドロキシプロピルメチルセルロース、ヒドロキシエチルメチルセルロース等の非イオン性の水溶性セルロースエーテル等に粉粒体のアクリル酸重合物ナトリウム塩、デンプン−アクリル酸グラフト共重合体等の高吸水性樹脂を添加混合した延焼抑制剤が提案されている（例えば、特許文献２参照）。 In this method using water gel, it can be easily attached to the outer wall and ceiling surface of buildings, etc., but when the temperature of the water gel rises due to radiant heat, the viscosity decreases, and the surface of glass or the like is a smooth vertical surface Even if an attempt was made to form a gel layer, it would slip off, making it difficult to form a sufficient gel layer in terms of suppressing the spread of fire.
Therefore, powdered acrylic acid polymer sodium salt, starch-acrylic acid in nonionic water-soluble cellulose ether such as hydroxypropylmethylcellulose, hydroxyethylmethylcellulose, etc., which has the property of thermal gelation by heat reception A fire spread inhibitor in which a superabsorbent resin such as a graft copolymer is added and mixed has been proposed (see, for example, Patent Document 2).

米国特許第５９８９４４６号明細書US Pat. No. 5,998,446 特開平０１−５６０７０号公報Japanese Unexamined Patent Publication No. 01-56070

しかし、水に添加される高吸水性樹脂の量は重量％で１％位と少ないので殆ど水が一体の層となり接炎または輻射熱の影響を受けて一様に温度が上昇するので、延焼を抑制できる時間が短いという問題がある。   However, since the amount of superabsorbent resin added to water is as low as 1% by weight, water becomes an integral layer and the temperature rises uniformly under the influence of flame contact or radiant heat. There is a problem that the time that can be suppressed is short.

この発明の目的は、延焼を抑制できる時間が長いゲル層を防火対象物の表面に形成することのできる消火設備を提供することである。   An object of the present invention is to provide a fire extinguishing equipment capable of forming a gel layer on the surface of a fire prevention object with a long time during which fire spread can be suppressed.

この発明に係る消火設備は、防火対象物の表面が水を含む延焼抑制剤のゲル状の層で覆われるように液状の上記延焼抑制剤をノズルから上記防火対象物に放射する消火設備において、上記水は気泡を内包している。   The fire extinguishing equipment according to the present invention is a fire extinguishing equipment that radiates the liquid fire spread inhibitor from the nozzle to the fire target so that the surface of the fire target is covered with a gel-like layer of the fire spread inhibitor containing water. The water contains bubbles.

この発明に係る消火設備の効果は、ノズルから放射する延焼抑制剤は水に気泡が混合された混相水に延焼抑制剤原液が混合されたものであり、延焼抑制剤を防火対象物に放射することにより形成され防火対象物の表面を被覆する層の中に気泡が内包されているので、層全体としての熱伝導率が小さくなり層に含まれる水の気化が完了する時間が長くなり、延焼を抑制する時間を延ばすことができるということである。   The effect of the fire-extinguishing equipment according to the present invention is that the fire spread inhibitor radiated from the nozzle is obtained by mixing a fire spread inhibitor stock solution with mixed phase water in which bubbles are mixed with water, and radiates the fire spread inhibitor to the fire prevention object. Since the bubbles are included in the layer that covers the surface of the object to be fired, the thermal conductivity of the entire layer is reduced, and the time for completing the vaporization of water contained in the layer is increased. This means that it is possible to extend the time to suppress the problem.

実施の形態１．
図１は、この発明の実施の形態１に係る消火設備の構成図である。
この発明の実施の形態１に係る消火設備は、防火対象物１４に延焼の危険が及ぶことを図示しない火災警報器が感知したとき火災警報器からの情報が入力されて防火対象物１４に延焼抑制剤を放射する。放射された延焼抑制剤は、延焼抑制剤に含まれる高吸水性樹脂が水を吸収してゲル化し、ゲル化した延焼抑制剤は防火対象物１４の表面を覆う。 Embodiment 1 FIG.
FIG. 1 is a configuration diagram of a fire extinguishing facility according to Embodiment 1 of the present invention.
In the fire extinguishing equipment according to Embodiment 1 of the present invention, when a fire alarm (not shown) senses that there is a risk of the fire spreading to the fire prevention object 14, information from the fire alarm is input to the fire protection object 14. Radiates the inhibitor. The radiated fire spread inhibitor gels by absorbing the water with the superabsorbent resin contained in the fire spread inhibitor, and the gelled fire spread inhibitor covers the surface of the fire prevention object 14.

この発明の実施の形態１に係る消火設備は、図１に示すように、気泡が混合された水からなる混相水が溜まる水槽１、水槽１から混相水を汲み上げ加圧して送り出す加圧送水装置２、加圧送水装置２に一端が連結された加圧された混相水を導く送水配管３、一端が送水配管３の他端に連結されて混相水の流れを制御する自動開放弁４、一端が自動開放弁４の他端に配管を介して接続され混相水に延焼抑制剤原液を混合する混合装置５、延焼抑制剤原液が貯蔵された延焼抑制剤原液貯蔵タンク６、混合装置５に接続される放射ノズル７、水槽１内の水または混相水を汲み上げてマイクロバブルを発生して水槽１に戻すマイクロバブル発生装置８、マイクロバブル発生装置８にマイクロバブルの素になるガスを供給するガス発生装置９、および、消火設備全体を制御する制御装置１０を備える。   As shown in FIG. 1, the fire extinguishing equipment according to Embodiment 1 of the present invention is a water tank 1 in which mixed phase water made up of water in which bubbles are mixed, a pressurized water supply device that pumps up and feeds mixed phase water from the water tank 1 2. A water supply pipe 3 for introducing pressurized mixed phase water, one end of which is connected to the pressurized water supply apparatus 2, and an automatic release valve 4, one end of which is connected to the other end of the water supply pipe 3 to control the flow of the mixed phase water. Is connected to the other end of the automatic opening valve 4 via a pipe, connected to the mixing device 5 for mixing the spread-inhibitor stock solution into the mixed phase water, connected to the spread-inhibitor stock solution storage tank 6 in which the spread-inhibitor stock solution is stored, and the mixing device 5. Radiating nozzle 7, pumping water in water tank 1 or mixed phase water to generate microbubbles and returning them to water tank 1, gas supplying microbubble generating apparatus 8 with gas to be a source of microbubbles Generator 9, and And a control unit 10 which controls the entire fire facilities.

加圧送水装置２は、制御装置１０と加圧送水配線１１を介して接続されている。
自動開放弁４は、制御装置１０と開閉配線１２を介して接続されている。
マイクロバブル発生装置８は、制御装置１０とマイクロバブル発生配線１３を介して接続されている。 The pressurized water supply device 2 is connected to the control device 10 via the pressurized water supply wiring 11.
The automatic opening valve 4 is connected to the control device 10 via the opening / closing wiring 12.
The microbubble generating device 8 is connected to the control device 10 via the microbubble generating wiring 13.

気泡の素になるガスは、好適には消火に寄与する消火ガス、例えば不活性ガスであり、特に、不活性ガスの内熱伝導率が小さいほど好ましく、例えば、ラドンガス（Ｒｎ：３．６×１０−３Ｗ／ｍ・Ｋ）、キセノンガス（Ｘｅ：５．７×１０−３Ｗ／ｍ・Ｋ）、クリプトンガス（Ｋｒ：９．５×１０−３Ｗ／ｍ・Ｋ）、二酸化炭素ガス（ＣＯ２：１６．３×１０−３Ｗ／ｍ・Ｋ）、アルゴンガス（Ａｒ：１７．７×１０−３Ｗ／ｍ・Ｋ）、窒素ガス（Ｎ２：２５．５×１０−３Ｗ／ｍ・Ｋ）、またはこれらの混合ガスである。
なお、気泡の素になるガスは、消火に寄与するフッ素系ガス（例えば、ヘプタフルオロプロパン、トリフルオロメタン、またはこれらの混合ガス）などであっても良いし、空気など手軽に使えるガスであっても良い。 The gas that becomes the element of bubbles is preferably a fire extinguishing gas that contributes to fire extinguishing, for example, an inert gas. In particular, the smaller the internal thermal conductivity of the inert gas, the more preferable, for example, radon gas (Rn: 3.6 × 10 −3 W / m · K), xenon gas (Xe: 5.7 × 10 −3 W / m · K), krypton gas (Kr: 9.5 × 10 −3 W / m · K), carbon dioxide Gas (CO 2 : 16.3 × 10 −3 W / m · K), argon gas (Ar: 17.7 × 10 −3 W / m · K), nitrogen gas (N 2 : 25.5 × 10 − 3 W / m · K), or a mixed gas thereof.
In addition, the gas that becomes the element of bubbles may be a fluorine-based gas (for example, heptafluoropropane, trifluoromethane, or a mixed gas thereof) that contributes to fire extinguishing, or an easily usable gas such as air. Also good.

気泡は放射された延焼抑制剤に内包されていれば良いので、気泡の直径は１ｍｍ以下であれば良い。しかし、水槽１の内に溜まっているときや送水配管３内を流れるときに混相水の中に安定して内包されることを考慮すると、液体中に長時間滞留するマイクロバブルが最も好ましい。なお、マイクロバブルは、液体中に長時間滞留する小さな直径の気泡であり、例えば、直径が５０μｍ以下の気泡をマイクロバブルと称す。また、以下の説明では気泡として窒素ガスからなるマイクロバブルを水に混合する。   Since the bubbles only need to be included in the emitted fire spread inhibitor, the diameter of the bubbles may be 1 mm or less. However, considering that the water is stably contained in the mixed phase water when it is accumulated in the water tank 1 or flows in the water supply pipe 3, microbubbles that stay in the liquid for a long time are most preferable. Microbubbles are small-diameter bubbles that stay in a liquid for a long time. For example, bubbles having a diameter of 50 μm or less are referred to as microbubbles. In the following description, micro bubbles made of nitrogen gas are mixed with water as bubbles.

延焼抑制剤原液は、この延焼抑制剤原液を水に混合して延焼抑制剤を調製すると水を吸水することにより延焼抑制剤をゲル化する粒子状の高吸水性樹脂、粒子状の高吸水性樹脂が分散される有機溶媒および乳化剤から構成されている。
高吸水性樹脂は親水性モノマをポリマ化した樹脂であり、例えば、アクリルアミド、アクリル酸重合体、マレイン酸無水物、イタコン酸、ヒドロキシルエチルアクリレート、ポリエチレングリコールジメタクリレート、アリルメタクリレート、テトラエチレングリコールジメタクリレート、トリエチレングリコールジメタクリレート、ジエチレングリコールジメタクリレート、グリセロールジメタクリレート、ヒドロキシプロピルメタクリレートなどである。なお、以下の説明では、高吸水性樹脂としてアクリル酸ナトリウム、アクリルアミドおよび２−アクリルアミド−２メチルプロパンスルホン酸ナトリウムの混合物を例にして説明するがこれに限るものではない。 The flame spread inhibitor stock solution is a particulate superabsorbent resin that gels the fire spread inhibitor by absorbing water when this fire spread inhibitor stock solution is mixed with water to prepare the fire spread inhibitor. It is composed of an organic solvent in which the resin is dispersed and an emulsifier.
The superabsorbent resin is a resin obtained by polymerizing a hydrophilic monomer, such as acrylamide, acrylic acid polymer, maleic anhydride, itaconic acid, hydroxylethyl acrylate, polyethylene glycol dimethacrylate, allyl methacrylate, tetraethylene glycol dimethacrylate. Triethylene glycol dimethacrylate, diethylene glycol dimethacrylate, glycerol dimethacrylate, hydroxypropyl methacrylate and the like. In the following description, a mixture of sodium acrylate, acrylamide, and sodium 2-acrylamido-2-methylpropanesulfonate is described as an example of the superabsorbent resin, but the present invention is not limited to this.

この延焼抑制剤原液は混相水に混合されると、延焼抑制剤原液に含まれる高吸水性樹脂が混相水の水を吸収して高吸水性樹脂の体積が膨張して粘性が増大し、延焼抑制剤が液状からゲル状に変化する。そして、ゲル状の延焼抑制剤は防火対象物１４の表面に層状に付着する。   When this fire spread inhibitor stock solution is mixed with mixed phase water, the superabsorbent resin contained in the fire spread inhibitor stock solution absorbs the water of the mixed phase water, and the volume of the super absorbent polymer expands to increase the viscosity. The inhibitor changes from liquid to gel. The gel-like fire spread inhibitor adheres in layers to the surface of the fire prevention object 14.

制御装置１０は、所定の周期、例えば１時間毎にマイクロバブル発生装置８に水槽１に溜まっている水にマイクロバブルを混合するよう指令を送る。なお、消火設備が新たに設置されたときまたはメンテナンスの際に水槽１が空にされたときは新たな水が注がれるので水槽１に溜まっている水にはマイクロバブルは混合されていないが、それ以外のときには水には濃度は別としてマイクロバブルが混合されている。   The control device 10 sends a command to the microbubble generator 8 to mix the microbubbles with the water accumulated in the water tank 1 every predetermined period, for example, every hour. In addition, when the water tank 1 is emptied when the fire extinguishing equipment is newly installed or when maintenance is performed, new water is poured, so the microbubbles are not mixed in the water accumulated in the water tank 1. In other cases, microbubbles are mixed in water apart from the concentration.

ガス発生装置９は、マイクロバブル発生装置８と連動して稼動し、空気中から窒素ガスを取り出してマイクロバブル発生装置８に供給する。なお、マイクロバブル発生装置８にガスを供給する供給源としてガス発生装置９の代わりにガスボンベを備えても良い。
マイクロバブル発生装置８は、制御装置１０からの指令に従って水槽１から水を汲み上げ且つガス発生装置９から供給される窒素ガスを受け取り、汲み上げた水の中に窒素ガスをマイクロバブルとして混合し、マイクロバブルを混合した水を水槽１に戻す。 The gas generator 9 operates in conjunction with the microbubble generator 8, extracts nitrogen gas from the air, and supplies it to the microbubble generator 8. A gas cylinder may be provided instead of the gas generator 9 as a supply source for supplying gas to the microbubble generator 8.
The microbubble generator 8 pumps water from the water tank 1 in accordance with a command from the control device 10 and receives nitrogen gas supplied from the gas generator 9. The microbubble generator 8 mixes nitrogen gas into the pumped water as microbubbles. Return the mixed water to the water tank 1.

このようにして常時水槽１に窒素ガスのマイクロバブルが混合された水からなる混相水が溜められている。特に、直径が５０μｍ以下のマイクロバブルが混合されていると、マイクロバブルに作用する浮力が小さくなり水の中に長時間マイクロバブルを滞留することができ、気液分離が起こらず、延焼抑制剤の最初の放射から混相水を放射することができる。   In this way, multiphase water composed of water in which nitrogen gas microbubbles are mixed is always stored in the water tank 1. In particular, when microbubbles having a diameter of 50 μm or less are mixed, the buoyancy acting on the microbubbles becomes small, and the microbubbles can stay in the water for a long time. Multiphase water can be radiated from the first radiation.

この発明の実施の形態１に係る消火設備には、防護対象物の近くで火災が発生したとき図示しない火災センサが火災を感知して制御装置１０に火災感知信号を送信する。
制御装置１０は、火災感知信号を受信すると、加圧送水装置２に送液開始指令を送信する。また、制御装置１０は、自動開放弁４に開放指令を送信する。 In the fire-extinguishing equipment according to Embodiment 1 of the present invention, when a fire occurs near an object to be protected, a fire sensor (not shown) detects the fire and transmits a fire detection signal to the control device 10.
When receiving the fire detection signal, the control device 10 transmits a liquid feeding start command to the pressurized water feeding device 2. Further, the control device 10 transmits an opening command to the automatic opening valve 4.

このように加圧送水装置２は稼動して加圧された混相水を送水配管３に送り、自動開放弁４が開放されて混合装置５に加圧された混相水が入力されると、混合装置５は、延焼抑制剤原液貯蔵タンク６から延焼抑制剤原液を吸い上げて混相水に混合して延焼抑制剤を調製し、調製した延焼抑制剤を放射ノズル７に供給する。
放射ノズル７から放射された延焼抑制剤は、防火対象物１４の表面を流れるが、その途中で高吸水性樹脂が水を吸収して体積が膨張するために粘度が増大してゲル状の層を形成する。 In this way, the pressurized water supply device 2 operates and sends the pressurized mixed phase water to the water supply pipe 3, and when the automatic opening valve 4 is opened and the pressurized mixed phase water is input to the mixing device 5, the mixing is performed. The apparatus 5 draws up the fire spread inhibitor stock solution from the fire spread inhibitor stock solution storage tank 6 and mixes it with mixed phase water to prepare a fire spread inhibitor, and supplies the prepared fire spread inhibitor to the radiation nozzle 7.
The fire spread inhibitor radiated from the radiating nozzle 7 flows on the surface of the fire prevention object 14, but in the middle, the superabsorbent resin absorbs water and the volume expands, so that the viscosity increases and the gel layer. Form.

次に、防火対象物１４の表面に形成されたゲル状の層の様子を図２を参照して説明する。図２は、防火対象物１４の表面に形成された延焼抑制剤のゲル状の層の断面模式図である。
延焼抑制剤のゲル状の層は、重量％で１％の高吸水性樹脂１５と９９％の水１６から構成されている。そして水１６の中に体積％で２％のマイクロバブル１７が内包されている。
防火対象物１４の表面を覆う延焼抑制剤のゲル状の層は、燃焼物からの接炎、および放射熱によりゲル状の層の表面側から加熱され、水１６の層を通して熱が防火対象物１４の表面に伝わっていくが、水１６に比べて２０分の１位の熱伝導率のマイクロバブル１７が水の中に分散しているので、ゲル状の層全体としての熱伝導率が小さくなり、水の温度の上昇速度が水の中にマイクロバブルが内包していないときに比べて小さくなり、延焼抑制剤に含まれる水が気化する速度が小さい。 Next, the state of the gel-like layer formed on the surface of the fire prevention object 14 will be described with reference to FIG. FIG. 2 is a schematic cross-sectional view of a gel-like layer of a fire spread inhibitor formed on the surface of the fire prevention object 14.
The gel-like layer of the fire spread inhibitor is composed of 1% by weight of the superabsorbent resin 15 and 99% of water 16. The water 16 contains 2% microbubbles 17 by volume.
The gel-like layer of the fire spread inhibitor that covers the surface of the fire prevention object 14 is heated from the surface side of the gel-like layer by flame contact from the burned material and radiant heat, and the heat is passed through the layer of water 16. However, since the microbubbles 17 having a thermal conductivity of about 20 times that of the water 16 are dispersed in the water, the thermal conductivity of the entire gel-like layer is small. Thus, the rate of increase in the temperature of the water is smaller than when the microbubbles are not encapsulated in the water, and the rate at which the water contained in the fire spread inhibitor evaporates is small.

この発明の実施の形態１に係る消火設備では、放射ノズル７から放射する延焼抑制剤はマイクロバブル１７が水１６に混合された混相水に延焼抑制剤原液が混合されたものであり、延焼抑制剤を防火対象物１４に放射することにより形成された防火対象物１４の表面を被覆する層の中にマイクロバブル１７が内包されているので、層全体としての熱伝導率が小さくなり層に含まれる水の気化が完了する時間が長くなり、延焼を抑制する時間が延びる。   In the fire-extinguishing equipment according to Embodiment 1 of the present invention, the fire spread inhibitor radiated from the radiation nozzle 7 is obtained by mixing the fire spread inhibitor stock solution with the mixed phase water in which the microbubbles 17 are mixed with the water 16. Since the microbubbles 17 are included in the layer covering the surface of the fire prevention object 14 formed by radiating the agent to the fire prevention object 14, the thermal conductivity of the entire layer is reduced and included in the layer. The time to complete vaporization of the water becomes longer, and the time to suppress the spread of fire is extended.

なお、上述の説明においては延焼抑制剤原液に高吸水性樹脂１５が分散されているが、さらに付着性に優れ受熱によって熱ゲル化する性状を有する粒子状の感温性樹脂（感温高吸水性樹脂の一例）、例えば、ヒドロキシプロピルメチルセルロース、ヒドロキシエチルメチルセルロースなどの非イオン性の水溶性セルロースエーテルを分散しても良い。   In the above description, the superabsorbent resin 15 is dispersed in the flame spread inhibitor stock solution. However, the particulate thermosensitive resin (thermosensitive and superabsorbent water) having a property of being excellent in adhesion and thermally gelled by receiving heat. An example of a conductive resin), for example, nonionic water-soluble cellulose ethers such as hydroxypropylmethylcellulose and hydroxyethylmethylcellulose may be dispersed.

実施の形態２．
図３は、この発明の実施の形態２に係る消火設備の構成図である。
この発明の実施の形態１に係る消火設備は火災警報器からの情報が入力されたとき放射ノズル７から防火対象物１４に延焼抑制剤を放射しているが、この発明の実施の形態２に係る消火設備は火災警報器が火災を感知したとき自衛消防隊員が防火対象物１４に延焼抑制剤を放射する。
すなわち、この発明の実施の形態２に係る消火設備は、この発明の実施の形態１に係る消火設備の自動開放弁４の代わりに手動開放弁２１が送水配管３の他端に接続され、混合装置５Ｂおよび放射ノズル７Ｂは可搬型であり、手動開放弁２１および延焼抑制剤原液貯蔵タンク６と混合装置５Ｂの間はホース２２で連結されていることが異なっており、それ以外は同様であるので、同様な部分に同じ符号を付記し説明は省略する。 Embodiment 2. FIG.
FIG. 3 is a configuration diagram of a fire extinguishing facility according to Embodiment 2 of the present invention.
The fire extinguishing equipment according to Embodiment 1 of the present invention radiates a fire spread inhibitor from the radiation nozzle 7 to the fire prevention object 14 when information from the fire alarm is input. In such fire extinguishing equipment, when the fire alarm detects a fire, the self-defense fire brigade radiates the fire spreader 14 to the fire prevention object 14.
That is, in the fire fighting equipment according to Embodiment 2 of the present invention, the manual opening valve 21 is connected to the other end of the water supply pipe 3 instead of the automatic opening valve 4 of the fire fighting equipment according to Embodiment 1 of the present invention. The apparatus 5B and the radiating nozzle 7B are portable, except that the manual release valve 21 and the fire spread inhibitor stock solution storage tank 6 and the mixing apparatus 5B are connected by a hose 22, and the others are the same. Therefore, the same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.

図示しない火災警報器が火災を感知したとき、自衛消防隊員は延焼の危険がある防火対象物１４にホース２２、混合装置５Ｂおよび放射ノズル７Ｂを運んできて、ホース２２で手動開放弁２１および延焼抑制剤原液貯蔵タンク６と混合装置５Ｂとの間を接続する。また、加圧送水装置２を手動で稼動して加圧した混相水を送水配管３に送り出す。このようにしてから手動開放弁２１を手動で開放すると、加圧された混相水が混合装置５Ｂに供給され、混合装置５Ｂで延焼抑制剤原液貯蔵タンク６から延焼抑制剤原液が吸い上げられて混相水に混合された延焼抑制剤が放射ノズル７Ｂに供給される。   When a fire alarm (not shown) senses a fire, the self-defense fire brigade carries the hose 22, the mixing device 5B and the radiation nozzle 7B to the fire protection object 14 which has a risk of spreading the fire. The inhibitor stock solution storage tank 6 and the mixing device 5B are connected. Further, the pressurized water supply device 2 is manually operated to send out the pressurized mixed phase water to the water supply pipe 3. When the manual release valve 21 is manually opened after this, pressurized mixed phase water is supplied to the mixing device 5B, and the mixing device 5B sucks up the spread-inhibiting agent stock solution from the spread-inhibiting agent stock solution storage tank 6 and mixes it. The fire spread inhibitor mixed with water is supplied to the radiation nozzle 7B.

このように可搬型の混合装置５Ｂおよび放射ノズル７Ｂを延焼抑制する必要のある場所まで運搬するので、必要とする混合装置５Ｂおよび放射ノズル７Ｂの数が少なくてすむ。   As described above, since the portable mixing device 5B and the radiation nozzle 7B are transported to a place where it is necessary to suppress the spread of fire, the number of the mixing devices 5B and the radiation nozzles 7B required can be reduced.

実施の形態３．
図４は、この発明の実施の形態３に係る消火設備の構成図である。
この発明の実施の形態３に係る消火設備は、この発明の実施の形態１に係る消火設備のマイクロバブル発生装置８を水槽１の近傍から送水配管３の途中に介設したことが異なり、それ以外は同様であるので、同様な部分に同じ符号を付記し説明は省略する。 Embodiment 3 FIG.
FIG. 4 is a configuration diagram of a fire extinguishing facility according to Embodiment 3 of the present invention.
The fire extinguishing equipment according to Embodiment 3 of the present invention is different from the fire extinguishing equipment according to Embodiment 1 of the present invention in that the microbubble generator 8 of the fire extinguishing equipment is interposed in the middle of the water supply pipe 3 from the vicinity of the water tank 1. Since the other parts are the same, the same parts are denoted by the same reference numerals and the description thereof is omitted.

マイクロバブル発生装置８は、加圧送水装置２により加圧された水が注入され、注入された水にガス発生装置９から供給される窒素ガスを直径５０μｍ以下のマイクロバブルとして混合して送水配管３に送り出す。   The microbubble generator 8 is injected with water pressurized by the pressurized water supply device 2 and mixes the injected water with nitrogen gas supplied from the gas generator 9 as microbubbles with a diameter of 50 μm or less to supply water. Send to 3.

このように放射される延焼抑制剤だけにマイクロバブルを混合するので、マイクロバブル発生装置８のマイクロバブル発生容量が少なくてすみ、小型のマイクロバブル発生装置８で十分である。   Since the microbubbles are mixed only with the fire spread inhibitor thus radiated, the microbubble generating capacity of the microbubble generating device 8 can be reduced, and a small microbubble generating device 8 is sufficient.

実施の形態４．
図５は、この発明の実施の形態４に係る消火設備の構成図である。
この発明の実施の形態１に係る消火設備では混相水に延焼抑制剤原液を放射ノズルの近くの混合装置で混合しているが、この発明の実施の形態４に係る消火設備では予め調製した延焼抑制剤を延焼抑制剤タンク３１に充填してある。このため、混合装置５および延焼抑制剤原液貯蔵タンク６を省略することができ、加圧送水装置２の代わりに加圧ガスボンベ３２および加圧ガス起動装置３３を備えている。
但し、この発明の実施の形態４に係る消火設備に適用し得る延焼抑制剤は、特定の温度以下、すなわち常温、火災現場での温度または盛夏時の温度などを含む温度以下では液状、特定の温度以上（例えば、火災温度）では水を内包するゲル状に相転換するものに限る（感温高吸水性樹脂の一例）。例えば、Ｎ−イソプロピルアクリルアミドとアクリル酸ナトリウムを共重合して得たポリマを含んでいる混相水である。 Embodiment 4 FIG.
FIG. 5 is a configuration diagram of a fire extinguishing facility according to Embodiment 4 of the present invention.
In the fire-extinguishing equipment according to Embodiment 1 of the present invention, the fire spread inhibitor stock solution is mixed into the mixed phase water with a mixing device near the radiation nozzle. In the fire-extinguishing equipment according to Embodiment 4 of the present invention, the fire spread prepared in advance is mixed. An inhibitor is filled in the fire spread inhibitor tank 31. For this reason, the mixing device 5 and the fire spread inhibitor stock solution storage tank 6 can be omitted, and a pressurized gas cylinder 32 and a pressurized gas starting device 33 are provided instead of the pressurized water supply device 2.
However, the flame spread inhibitor that can be applied to the fire extinguishing equipment according to Embodiment 4 of the present invention is liquid at a specific temperature or lower, that is, at a room temperature, a temperature at a fire site or a temperature in midsummer, or lower. Above the temperature (for example, fire temperature), it is limited to those that transform into a gel-like form containing water (an example of a temperature-sensitive and highly water-absorbent resin). For example, mixed phase water containing a polymer obtained by copolymerizing N-isopropylacrylamide and sodium acrylate.

延焼抑制剤タンク３１は、上部には加圧ポート３５と延焼抑制剤取出口３６とが設けられ、加圧ポート３５に加圧ガスを供給すると延焼抑制剤取出口３６から加圧された延焼抑制剤が送水配管３に送りだされる。
加圧ガスボンベ３２は、所定の圧力、例えば０．５ＭＰａの窒素ガスが充填されている。
加圧ガス起動装置３３は、制御装置１０から送水開始指令を受信すると加圧ガスボンベ３２の出口と延焼抑制剤タンク３１の加圧ポート３５とを連通し、加圧ポート３５に０．５ＭＰａの窒素ガスが供給されるようにする。加圧ガス起動装置３３は、加圧ガス起動配線３７を介して制御装置１０に接続されている。
制御装置１０は、火災感知信号を受信すると、加圧ガス起動装置３３に送水開始指令を送信する。また、制御装置１０は、自動開放弁４に開放指令を送信する。 The fire spread inhibitor tank 31 is provided with a pressurization port 35 and a fire spread inhibitor outlet 36 at the upper part, and when the pressurized gas is supplied to the pressurization port 35, the fire spread restraint pressurized from the fire spread inhibitor outlet 36 is suppressed. The agent is sent to the water supply pipe 3.
The pressurized gas cylinder 32 is filled with a predetermined pressure, for example, 0.5 MPa of nitrogen gas.
When the pressurized gas starting device 33 receives a water supply start command from the control device 10, the pressurized gas cylinder 32 communicates with the outlet of the pressurized gas cylinder 32 and the pressurized port 35 of the fire spread inhibitor tank 31, and 0.5 MPa of nitrogen is supplied to the pressurized port 35. Gas is supplied. The pressurized gas activation device 33 is connected to the control device 10 via a pressurized gas activation wiring 37.
When receiving the fire detection signal, the control device 10 transmits a water supply start command to the pressurized gas activation device 33. Further, the control device 10 transmits an opening command to the automatic opening valve 4.

延焼抑制剤タンク３１には、図示しない専門の混合ステーションで水にマイクロバブルを混合した混相水にさらに延焼抑制剤原液を混合して得た延焼抑制剤を充填してから現地に搬送するので、マイクロバブル発生装置８、ガス発生装置９を混合ステーションだけに配置すれば良く、複数の消火設備を必要とする場合には全体として設備費用が安くすることができる。   Since the fire spread inhibitor tank 31 is filled with the fire spread inhibitor obtained by further mixing the fire spread inhibitor stock solution in the mixed phase water mixed with micro bubbles in the water at a specialized mixing station (not shown), The microbubble generator 8 and the gas generator 9 may be disposed only in the mixing station, and when a plurality of fire extinguishing facilities are required, the facility cost can be reduced as a whole.

なお、上記実施の形態４において、加圧ガスボンベ３２に所定の圧力（延焼抑制剤の放出圧力としての低圧）の窒素ガスを充填するようにしたが、高圧（例えば、１４ＭＰａ）の窒素ガスを充填しても良い。その場合、加圧ガス起動装置３３と加圧ポート３５との間、又は送水配管３に、窒素ガス又は加圧された延焼抑制剤を上記所定の圧力に減圧するための圧力調整器を設ければよい。   In the fourth embodiment, the pressurized gas cylinder 32 is filled with nitrogen gas at a predetermined pressure (low pressure as the discharge pressure of the fire spread inhibitor), but is filled with high pressure (for example, 14 MPa) nitrogen gas. You may do it. In that case, a pressure regulator is provided between the pressurized gas starting device 33 and the pressurized port 35 or in the water supply pipe 3 for reducing the nitrogen gas or the pressurized fire spread inhibitor to the predetermined pressure. That's fine.

また、上記実施の形態１乃至３において、高吸水性樹脂を含む延焼抑制剤を用いた場合は、水を吸収して高粘度にゲル化することから、送水配管３等の目詰まりを考慮して、混合装置５、５Ｂを放射ノズル７、７Ｂ側に設けるようにしたが、高温高吸水性樹脂を含む延焼抑制剤を用いた場合は、火災等の高温時にはじめて、より高粘度にゲル化することから、混合装置５、５Ｂを水槽１側に設けるようにしても良い。   Moreover, in the said Embodiment 1 thru | or 3, when the fire spread inhibitor containing a highly water-absorbent resin is used, since water will be absorbed and gelatinized to high viscosity, clogging of the water supply piping 3 etc. will be considered. The mixing devices 5 and 5B are provided on the radiation nozzles 7 and 7B side. However, when a fire spread inhibitor containing a high-temperature and high-water-absorbent resin is used, it is gelled to a higher viscosity only at a high temperature such as a fire. Therefore, the mixing devices 5 and 5B may be provided on the water tank 1 side.

また、上記実施の形態１、２において、高温高吸水性樹脂を含む延焼抑制剤を用いた場合は、火災等の高温時にはじめて、より高粘度にゲル化することから、送水配管３等の目詰まりをあまり考慮しなくてもよいので、延焼抑制剤原液貯蔵タンク６及び混合装置５、５Ｂを削除して、水にマイクロバブルを混合した混相水にさらに延焼抑制剤原液を混合して得た延焼抑制剤を水槽１に溜めても良い。   Moreover, in the said Embodiment 1, 2, when using the fire spread inhibitor containing high temperature highly water-absorbing resin, since it gelatinizes more highly at the time of high temperature, such as a fire, eyes of the water supply piping 3 grade | etc., Since the clogging does not need to be considered much, the fire spread inhibitor stock solution storage tank 6 and the mixing devices 5 and 5B are deleted, and the fire spread inhibitor stock solution is further mixed with the mixed phase water in which microbubbles are mixed with water. A fire spread inhibitor may be stored in the water tank 1.

また、上記実施の形態１、２において、水にマイクロバブルを予め混合するようにしたが、これとは逆に、延焼抑制剤原液貯蔵タンク６にマイクロバブル発生装置８及びガス発生装置９を接続して、延焼抑制剤原液にマイクロバブルを予め混合するようにしても良い。
また、上記実施の形態４において、送水配管３等の目詰まりを考慮して、高温高吸水性樹脂を含む延焼抑制剤を用いて説明したが、送水配管３等の目詰まりを考慮しない場合は、高吸水性樹脂を含む延焼抑制剤を用いても良い。 In the first and second embodiments, the microbubbles are mixed with water in advance. On the contrary, the microbubble generator 8 and the gas generator 9 are connected to the fire spread inhibitor stock solution storage tank 6. And you may make it mix a microbubble beforehand with a fire spread inhibitor undiluted | stock solution.
Moreover, in the said Embodiment 4, although clogging of the water supply piping 3 etc. was considered and demonstrated using the fire spread inhibitor containing a high temperature highly water-absorbing resin, when clogging of the water supply piping 3 etc. is not considered. A fire spread inhibitor containing a superabsorbent resin may be used.

この発明の実施の形態１に係る消火設備の構成図である。It is a block diagram of the fire extinguishing equipment which concerns on Embodiment 1 of this invention. 防火対象物の表面に形成された延焼抑制剤のゲル状の層の断面模式図である。It is a cross-sectional schematic diagram of the gel-like layer of the fire spread inhibitor formed on the surface of the fire prevention object. この発明の実施の形態２に係る消火設備の構成図である。It is a block diagram of the fire extinguishing equipment which concerns on Embodiment 2 of this invention. この発明の実施の形態３に係る消火設備の構成図である。It is a block diagram of the fire extinguishing equipment which concerns on Embodiment 3 of this invention. この発明の実施の形態４に係る消火設備の構成図である。It is a block diagram of the fire extinguishing equipment which concerns on Embodiment 4 of this invention.

符号の説明Explanation of symbols

１ 水槽、２ 加圧送水装置、３ 送水配管、４ 自動開放弁、５、５Ｂ 混合装置、６ 延焼抑制剤原液貯蔵タンク、７、７Ｂ 放射ノズル、８ マイクロバブル発生装置、９ ガス発生装置、１０ 制御装置、１１ 加圧送水配線、１２ 開閉配線、１３ マイクロバブル発生配線、１４ 防火対象物、１５ 高吸水性樹脂、１６ 水、１７ マイクロバブル、２１ 手動開放弁、２２ ホース、３１ 延焼抑制剤タンク、３２ 加圧ガスボンベ、３３ 加圧ガス起動装置、３５ 加圧ポート、３６ 延焼抑制剤取出口、３７ 加圧ガス起動配線。   DESCRIPTION OF SYMBOLS 1 Water tank, 2 Pressurized water supply apparatus, 3 Water supply piping, 4 Automatic release valve, 5, 5B Mixing apparatus, 6 Fire spread inhibitor stock solution storage tank, 7, 7B Radiation nozzle, 8 Micro bubble generator, 9 Gas generator, 10 Control device, 11 Pressurized water supply wiring, 12 Open / close wiring, 13 Micro bubble generation wiring, 14 Fire prevention object, 15 Super absorbent resin, 16 Water, 17 Micro bubble, 21 Manual release valve, 22 Hose, 31 Fire spread inhibitor tank , 32 Pressurized gas cylinder, 33 Pressurized gas starting device, 35 Pressurizing port, 36 Fire spread inhibitor outlet, 37 Pressurized gas starting wiring.

Claims (4)

防火対象物の表面が水を含む延焼抑制剤のゲル状の層で覆われるように液状の上記延焼抑制剤をノズルから上記防火対象物に放射する消火設備において、
上記水は気泡を内包していることを特徴とする消火設備。 In the fire extinguishing equipment for radiating the liquid fire spread inhibitor from the nozzle to the fire target so that the surface of the fire target is covered with a gel-like layer of fire spread inhibitor containing water,
Fire extinguishing equipment characterized in that the water contains bubbles. 上記延焼抑制剤は、高吸水性樹脂または感温高吸水性樹脂を含むことを特徴とする請求項１に記載の消火設備。   The fire extinguishing equipment according to claim 1, wherein the fire spread inhibitor includes a highly water-absorbing resin or a temperature-sensitive highly water-absorbing resin. 上記気泡がマイクロバブルであることを特徴とする請求項１または２に記載の消火設備。   The fire extinguishing equipment according to claim 1 or 2, wherein the bubbles are microbubbles. 上記気泡には不活性ガスまたはフッ素系ガスが含まれることを特徴とする請求項１乃至３のいずれか一項に記載の消火設備。   The fire extinguishing equipment according to any one of claims 1 to 3, wherein the bubbles contain an inert gas or a fluorine-based gas.
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