JPH10309325A - Fire extinguishing method for building and bag for fire extinguishment for building - Google Patents
Fire extinguishing method for building and bag for fire extinguishment for buildingInfo
- Publication number
- JPH10309325A JPH10309325A JP9122012A JP12201297A JPH10309325A JP H10309325 A JPH10309325 A JP H10309325A JP 9122012 A JP9122012 A JP 9122012A JP 12201297 A JP12201297 A JP 12201297A JP H10309325 A JPH10309325 A JP H10309325A
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- Prior art keywords
- fire
- bag
- building
- inert gas
- combustible
- 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.)
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- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、ビル建築火災など
の消火に役立つ建築物の消火方法及び建築物の消火用バ
ッグに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire extinguishing method for a building and a fire extinguishing bag for a building which are useful for extinguishing a building fire.
【０００２】[0002]
【従来の技術】ビル火災などで、燃え上がる火災源は必
ず酸素を必要とし、酸素すなわち空気を断ち切れば火の
勢いを鎮めることが可能になっている。2. Description of the Related Art In a building fire or the like, a blazing fire source always requires oxygen, and it is possible to calm the fire by cutting off oxygen, that is, air.
【０００３】[0003]
【発明が解決しようとする課題】しかし、現実には、火
災源に通じる廊下などの通路が主たる空気供給路になっ
て、該通路を通ってのフレッシュエアの供給が火の手を
増々大きくしている。ビル火災などのＴＶニュースで、
窓等から火炎が吹き出し火気に勢いづかせている光景を
見かけることがあるが、これは火のない廊下，ダクト等
の通路をつたって火の手が舞い上がる部屋へ新たな空気
（フレッシュエア）が流入していることに大きく起因し
ている。However, in reality, a passage such as a corridor leading to a fire source has become a main air supply passage, and the supply of fresh air through the passage has increased. . In TV news such as building fire,
You may see scenes in which flames blow out from windows and ignite the fire, but this is because new air (fresh air) flows into rooms without fire, passing through passages such as corridors and ducts where fire hands flutter. It is largely due to that.
【０００４】本発明は、上記問題点を解決するもので、
燃えさかる火炎への空気供給路を断ち切り、消火，鎮静
化に寄与する建築物の消火方法及び建築物の消火用バッ
グを提供することを目的とする。[0004] The present invention solves the above problems,
An object of the present invention is to provide a fire extinguishing method for a building and a fire extinguishing bag for a building, which cut off an air supply path to a burning flame to contribute to fire extinguishing and calming.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成すべく、
請求項１に係る発明の要旨は、不燃性バッグ内に不活性
ガスを吹き込んで膨らませ、その後、膨らませたこの一
又は二以上の不燃性バッグで建屋内の火災源に通じる通
路を塞ぐようにし、フレッシュエアの火災源への流入を
遮断して鎮火させることを特徴とする建築物の消火方法
にある。また、請求項２に係る発明の要旨は、不活性ガ
スが充填された高圧ガス容器又は化学反応で不活性ガス
を発生させる不活性ガス発生機器と、該高圧ガス容器又
は不活性ガス発生機器に連結可能にし、ここから発生す
る不活性ガスが封入されて膨らむ不燃性バッグと、を具
備することを特徴とする建築物の消火用バッグにある。In order to achieve the above object,
The gist of the invention according to claim 1 is to blow an inert gas into an incombustible bag to inflate the bag, and then to close a passage leading to a fire source in the building with the inflated one or more incombustible bags, A fire extinguishing method for a building, characterized in that the flow of fresh air into a fire source is blocked to extinguish a fire. The gist of the invention according to claim 2 is that a high-pressure gas container filled with an inert gas or an inert gas generating device that generates an inert gas by a chemical reaction and a high-pressure gas container or an inert gas generating device A fire-extinguishing bag for a building, comprising: a non-combustible bag that is connectable and expands by being filled with an inert gas generated therefrom.
【０００６】請求項１又は２の発明によれば、不燃性バ
ッグを膨らまして建屋内の火災源に通じる通路を塞ぐこ
とができるので、燃焼の三要素（可燃物，酸化剤，エネ
ルギー）のうちの酸化剤たる空気の供給が抑えられ、火
災源の火の勢いを容易に鎮めることができる。According to the first or second aspect of the present invention, the non-combustible bag can be inflated to close the passage leading to the fire source in the building, so that the three elements of combustion (combustibles, oxidizer, and energy) can be used. The supply of air, which is an oxidizing agent, is suppressed, and the fire of the fire source can be easily calmed down.
【０００７】[0007]
【発明の実施の形態】以下、本発明に係る建築物の消火
方法及び建築物の消火用バッグについて詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A fire extinguishing method for buildings and a fire extinguishing bag for buildings according to the present invention will be described in detail below.
【０００８】（１）建築物の消火用バッグ 図１は本発明たる建築物の消火用バッグ（以下、単に
「消火用バッグ」という。）の一実施形態で、消火用バ
ッグは高圧ガス容器１と不燃性バッグ２とを具備する。(1) Building Fire Extinguishing Bag FIG. 1 shows an embodiment of a building fire extinguishing bag (hereinafter simply referred to as “fire extinguishing bag”) according to the present invention. And a non-combustible bag 2.
【０００９】高圧ガス容器１は、不活性ガスが圧縮気体
又は液化ガスとして充填された容器である。不活性ガス
とは、化学的に酸化されない安定な物質をいい、例え
ば、窒素，二酸化炭素，アルゴンなどをいう。ここで
は、不活性ガスとして二酸化炭素を用い、二酸化炭素は
液化した液化炭酸として高圧ガス容器内に充填されてい
る。二酸化炭素は圧力を加えると常温でも液化し、常温
貯蔵に便利になっている。高圧ガス容器１は、操作レバ
ー４を握ると上端から不活性ガスが吹き出すが、通常、
ピン５によってロック状態にある。使用時はピン５を外
して操作レバー４を握ることとなる。ここでは、高圧ガ
ス容器１として図１のようなボンベを用いている。The high-pressure gas container 1 is a container filled with an inert gas as a compressed gas or a liquefied gas. The inert gas refers to a stable substance that is not chemically oxidized, such as nitrogen, carbon dioxide, and argon. Here, carbon dioxide is used as an inert gas, and carbon dioxide is filled in a high-pressure gas container as liquefied carbon dioxide. Carbon dioxide liquefies at room temperature when pressure is applied, making it convenient for storage at room temperature. The inert gas blows out from the upper end of the high-pressure gas container 1 when the operation lever 4 is gripped.
Locked by pin 5. In use, the pin 5 is removed and the operation lever 4 is gripped. Here, a cylinder as shown in FIG. 1 is used as the high-pressure gas container 1.
【００１０】不燃性バッグ２は、シート状の不燃性材料
で袋形状にしたものである。不燃性材料とするのは、火
災源近くで不燃性バッグ２が使用されるからである。不
燃性材料としては、例えば芳香族ポリアミド等の耐熱性
繊維が挙げられる。ポリエステル繊維にリン化合物を共
重合して燃え難くしたもの等でもよい。必要に応じ、不
燃性バッグ２の表面にはアルミニウム粉末を混入した合
成ゴムでコーティングされる。不燃性バッグ２は、高圧
ガス容器１に耐熱性ホース３を介して連結している。前
記ピン５を外して操作レバー４を握ると、高圧ガス容器
１から発生する不活性ガスが不燃性バッグ２に封入され
て膨らむようになる。尚、不使用時に不燃性バッグ２を
コンパクトにして収納，搬送しやすいように、不燃性バ
ッグ２とのホースつなぎ部分を高圧ガス容器１のバンド
に係止させるようにしている（図１）。The noncombustible bag 2 is a bag made of a sheet-like noncombustible material. The non-combustible material is used because the non-combustible bag 2 is used near a fire source. Examples of the non-combustible material include heat-resistant fibers such as aromatic polyamide. Polyester fibers may be copolymerized with a phosphorus compound to make them difficult to burn. If necessary, the surface of the non-combustible bag 2 is coated with a synthetic rubber mixed with aluminum powder. The non-combustible bag 2 is connected to the high-pressure gas container 1 via a heat-resistant hose 3. When the pin 5 is removed and the operating lever 4 is gripped, the inert gas generated from the high-pressure gas container 1 is sealed in the non-combustible bag 2 and expands. In order to make the non-combustible bag 2 compact and easy to store and transport when not in use, a hose connecting portion with the non-combustible bag 2 is locked to a band of the high-pressure gas container 1 (FIG. 1).
【００１１】不燃性バッグ２の袋の大きさは、持ち運び
の便及び材料的制約をクリアすれば、より大きなものが
好ましい。しかし、大きさにも一般的に限度があり、か
くのごとき不燃性バッグ２は、実際の火災に遭遇した場
合、不燃性バッグ２をいくつか用いて、不燃性バッグ
２，２，…を膨らまし建屋内の火災源に通じる通路を塞
ぐのが通常処理法となる。The size of the bag of the non-combustible bag 2 is preferably larger as long as the convenience of carrying and the material restrictions are satisfied. However, the size of the non-combustible bag 2 is generally limited, and the non-combustible bag 2 is inflated by using some of the non-combustible bags 2 when an actual fire is encountered. The usual treatment is to block the passage leading to the fire source inside the building.
【００１２】本実施形態は、不活性ガスが充填された高
圧ガス容器１を用いたが、これに代え、化学反応で不活
性ガスを発生させる不活性ガス発生機器（図示せず）と
することもできる。具体的には、化学反応によって不活
性な二酸化炭素等を発生させる不活性ガス発生機器を設
けることとなる。In this embodiment, the high-pressure gas container 1 filled with an inert gas is used. Instead, an inert gas generator (not shown) for generating an inert gas by a chemical reaction is used. Can also. Specifically, an inert gas generating device for generating inert carbon dioxide or the like by a chemical reaction is provided.
【００１３】不活性ガス発生機器による不活性ガスの発
生メカニズムとして、例えば、二酸化炭素については、
ＣaＣＯ3→ＣaＯ＋ＣＯ2 、ＣaＣＯ3 ＋２ＨＣｌ→
ＣaＣｌ2＋ＣＯ2＋Ｈ2Ｏ 、ＮaＨＣＯ3＋ＨＣｌ→Ｎ
aＣｌ＋Ｈ2Ｏ＋ＣＯ2 、２ＮaＨＣＯ3 →Ｎa2ＣＯ3＋
Ｈ2Ｏ＋ＣＯ2 等の化学反応に基づく。他の不活性ガス
の発生メカニズムは説明を省略するが、その不活性ガス
を発生させる化学反応が利用される。As a mechanism of generating an inert gas by an inert gas generating device, for example, for carbon dioxide,
C a CO 3 → CaO + CO 2, C a CO 3 + 2HCl →
C a Cl 2 + CO 2 + H 2 O, NaHCO 3 + HCl → N
aCl + H 2 O + CO 2 , 2NaHCO 3 → Na 2 CO 3 +
Based on chemical reactions such as H 2 O + CO 2. Although the description of other inert gas generation mechanisms is omitted, a chemical reaction for generating the inert gas is used.
【００１４】（２）建築物の消火方法 次に、上記消火用バッグを使用した建築物の消火方法に
ついて詳述する。建築物の消火方法は、まず、ビル等の
火災現場に消火用バッグを搬入する。そして、燃え上が
る火災源に通じる廊下，階段或いはダクト等を調査す
る。ホテルなどで、客室の窓等から勢いよく火の手が上
がり燃焼している時は、上昇気流も激しく、廊下やダク
トの通路をつたって、空気が火災源へ流入している現実
がある。火災源へ流入している空気の搬入路、例えば、
図２のような廊下を確認したら、次に、そこへ消火用バ
ッグを持っていく。図２，図３中、符号６は建屋内の火
災源に通じる通路（ここでは廊下）、符号６１は床、符
号６２は天井、符号６３は壁、符号６４は照明具を示
す。(2) Fire Extinguishing Method for Building Next, a fire extinguishing method for a building using the fire extinguishing bag will be described in detail. In a fire extinguishing method for a building, first, a fire extinguishing bag is carried into a fire site such as a building. Investigate corridors, stairs or ducts leading to the burning fire source. In hotels and the like, when the hands of the fire rise vigorously from the windows of the guest rooms, the updraft is strong, and there is a reality that air flows into the fire source through the corridor or duct passage. A way for the air flowing into the fire source, for example,
After checking the corridor as shown in Fig. 2, bring the fire extinguisher bag there. 2 and 3, reference numeral 6 denotes a passage (here, a corridor) leading to a fire source in the building, reference numeral 61 denotes a floor, reference numeral 62 denotes a ceiling, reference numeral 63 denotes a wall, and reference numeral 64 denotes a lighting device.
【００１５】しかる後、消火用バッグからピン５を外
し、不燃性バッグ２を膨らます。不燃性バッグ２をいく
つか膨らませて火災源へ空気が流入している搬入路を塞
いでしまう（図３）。そして、フレッシュエアの火災源
への流入を遮断して鎮火させる。勿論、これと併用し
て、消防用ホース等による散水活動が通常行われる。火
災が存続するには、燃料になるもの、これを酸化する空
気、反応を続けるための熱の三つが揃う必要があるが
（燃焼の三要素）、本発明は空気を断ち切って火災を鎮
火させる構成をとっている。Thereafter, the pin 5 is removed from the fire extinguishing bag, and the non-combustible bag 2 is inflated. Some incombustible bags 2 are inflated to block the carry-in path through which air flows into the fire source (FIG. 3). Then, the flow of fresh air into the fire source is cut off to extinguish the fire. Of course, water sprinkling with a fire hose or the like is usually performed in combination with this. In order for the fire to survive, the fuel, the air that oxidizes it, and the heat to continue the reaction need to be prepared (three elements of combustion), but the present invention cuts off the air to extinguish the fire It has a configuration.
【００１６】ところで、図３では三つの不燃性バッグ２
を使用して廊下を塞いでいるが、不燃性バッグ２は完全
に膨らみ張った状態にするのではなく、ある程度余裕を
もって、変形自在な動きが取れるようになっている。不
燃性バッグ２の形状に自由度をもたせることによって、
いくつかの不燃性バッグ２が互いに密着可能になり、各
種通路の形状，大きさに対応でき、その通路を塞ぐ密封
シール度合が上がるからである。具体的には、不燃性バ
ッグ２の容量約１０ｍ3 に対して８割程度に膨らまし
て、不燃性バッグ同士は勿論、周りの天井６２，壁６３
等への当接面を多くしている。また、廊下などで天井に
照明具等の出っ張り部分がある場合は、ここを避けて不
燃性バッグ２を膨らますのが好ましい。不燃性バッグ２
によるより効果ある遮断が確保されるからである。FIG. 3 shows three non-combustible bags 2.
Is used to close the corridor, but the non-combustible bag 2 does not have to be completely inflated, but can be freely deformed with some margin. By giving the degree of freedom to the shape of the non-combustible bag 2,
This is because some non-combustible bags 2 can be in close contact with each other, can correspond to the shape and size of various passages, and the degree of hermetic sealing for closing the passages increases. Specifically, the inflatable bag 2 is inflated to about 80% of the capacity of the non-combustible bag 2 of about 10 m 3 , and the ceiling 62 and the wall 63 around the non-combustible bag are not limited to each other.
There are many contact surfaces to the etc. Further, when there is a protruding portion such as a lighting device on the ceiling in a corridor or the like, it is preferable to inflate the nonflammable bag 2 avoiding this portion. Non-combustible bag 2
This ensures a more effective cutoff.
【００１７】（３）効果 このように構成した建築物の消火方法及び建築物の消火
用バッグによれば、火災源に通じる通路（空気供給路）
を塞いで、火災源へのフレッシュエアの流入を遮断する
ので、燃焼条件としての酸化剤たる空気が断ち切られ、
鎮火に向うことになる。従って、火の勢いはおさまり、
消防用ホース等を使った消火活動がスムーズに運び、火
は早く消し止められる。従来、マンション火災などで、
大量の水を使った消火活動では、火災源のみならずその
周辺住居も水浸しになる被害を蒙っていたが、斯る不具
合も解消される。また、急を要する場合などでは、何個
かの消火バッグを炎の吹き出している窓に投げ込んで、
窓を塞ぎ、火の元への空気供給を止めることも可能であ
る。万一、不燃性バッグ２まで火の手が近づいて破れて
しまっても、不燃性バッグ２は不燃性でしかも不活性ガ
スが充填されているため、不活性ガスによる消火ができ
る。不活性ガスであるため、人的にも安全である。更
に、火災時の死亡事故で一番多いのは、煙りにまかれて
死ぬことだといわれているが、本発明によれば、火の元
とそうでない所を遮断し、避難誘導の過程で、煙り等が
侵入してくるのを抑えることができるので、煙りにまか
れて命を落とすのを防ぐこともできる。(3) Effect According to the fire extinguishing method and fire extinguishing bag for a building constructed as described above, the passage (air supply passage) leading to the fire source is provided.
To shut off the flow of fresh air into the fire source, cutting off the oxidant air as a combustion condition,
It is time to put out the fire. Therefore, the fire has subsided,
Firefighting activities using fire hoses etc. are carried smoothly, and the fire is extinguished quickly. Conventionally, due to apartment fires,
Firefighting activities using a large amount of water have damaged not only the source of the fire but also the surrounding houses, and this problem is resolved. Also, in case of urgency, throw some fire extinguisher bags into the window where the flame is blowing out,
It is possible to close the window and stop the air supply to the fire. Even if the hand of fire approaches the incombustible bag 2 and breaks, the incombustible bag 2 can be extinguished by the inert gas because it is incombustible and filled with inert gas. Since it is an inert gas, it is safe for humans. Furthermore, it is said that the most frequent fatal accidents in the event of a fire are deaths caused by smoke.However, according to the present invention, the source of the fire and other places are shut off and smoke is emitted during the evacuation guidance process. Can be prevented from invading, so that it can be prevented from being killed by smoke and killed.
【００１８】尚、本発明においては、前記実施形態に示
すものに限られず、目的，用途に応じて本発明の範囲で
種々変更できる。高圧ガス容器１，不活性ガス発生機
器，不燃性バッグ２，ホース３，操作レバー４等の大き
さ，形状，材質，成分，個数等は用途に応じて適宜選定
される。例えば、建築物の消火に際しては、前記実施形
態のごとく消火バッグを三個用いずに一個としてもよい
し、他の複数個とすることもできる。The present invention is not limited to the embodiment described above, but can be variously modified within the scope of the present invention depending on the purpose and application. The size, shape, material, components, number, etc. of the high-pressure gas container 1, the inert gas generator, the non-combustible bag 2, the hose 3, the operation lever 4, and the like are appropriately selected according to the application. For example, when extinguishing a building, three fire extinguishing bags may be used instead of three fire extinguishing bags as in the above-described embodiment, or other fire extinguishing bags may be used.
【００１９】[0019]
【発明の効果】以上のごとく、本発明に係る建築物の消
火方法及び建築物の消火用バッグは、燃えさかる火炎へ
の空気供給路を断ち切るので、火の勢いを鎮静化させる
ことが簡単にでき、ビル火災などの消火活動に極めて有
益となる。As described above, the fire extinguishing method for buildings and the fire extinguisher bag for buildings according to the present invention cut off the air supply path to the burning flame, so that the fire can be easily calmed down. It is extremely useful for fire fighting such as building fires.
【図１】本発明に係る建築物の消火用バッグの一形態
で、その全体斜視図である。FIG. 1 is an overall perspective view of an embodiment of a building fire-extinguishing bag according to the present invention.
【図２】火災現場に通じる廊下の斜視図である。FIG. 2 is a perspective view of a corridor leading to a fire site.
【図３】図２の廊下を消火用バッグで塞いだ状態にした
斜視図である。FIG. 3 is a perspective view showing a state in which the corridor of FIG. 2 is closed with a fire extinguishing bag.
１ 高圧ガス容器 ２ 不燃性バッグ ６ 通路 1 high-pressure gas container 2 non-combustible bag 6 passage
Claims (2)
で膨らませ、その後、膨らませたこの一又は二以上の不
燃性バッグで建屋内の火災源に通じる通路を塞ぐように
し、フレッシュエアの火災源への流入を遮断して鎮火さ
せることを特徴とする建築物の消火方法。An inactive gas is blown into a non-combustible bag to inflate the air, and then the one or more inflated non-combustible bags are used to block a passage leading to a fire source in a building, thereby providing a fresh air fire source. A fire extinguishing method for a building, characterized by blocking the flow into a building and extinguishing the fire.
は化学反応で不活性ガスを発生させる不活性ガス発生機
器と、該高圧ガス容器又は不活性ガス発生機器に連結可
能にし、ここから発生する不活性ガスが封入されて膨ら
む不燃性バッグと、を具備することを特徴とする建築物
の消火用バッグ。2. A high-pressure gas container filled with an inert gas or an inert gas generating device for generating an inert gas by a chemical reaction, and can be connected to the high-pressure gas container or the inert gas generating device to generate the gas therefrom. A fire-extinguishing bag for a building, comprising: a non-combustible bag that expands by being filled with an inert gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12201297A JP3768328B2 (en) | 1997-05-13 | 1997-05-13 | Fire extinguishing method for building and bag device for extinguishing building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12201297A JP3768328B2 (en) | 1997-05-13 | 1997-05-13 | Fire extinguishing method for building and bag device for extinguishing building |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH10309325A true JPH10309325A (en) | 1998-11-24 |
| JP3768328B2 JP3768328B2 (en) | 2006-04-19 |
Family
ID=14825395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12201297A Expired - Fee Related JP3768328B2 (en) | 1997-05-13 | 1997-05-13 | Fire extinguishing method for building and bag device for extinguishing building |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3768328B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008146345A1 (en) * | 2007-05-25 | 2008-12-04 | Fenwal Controls Of Japan, Ltd. | Opening part-closing device, fire extinguisher, and nacelle for wind power generator |
| CN110585623A (en) * | 2019-09-07 | 2019-12-20 | 励土峰 | Indoor expansion fire extinguishing device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5086899A (en) * | 1973-12-06 | 1975-07-12 | ||
| JPS5228196A (en) * | 1975-08-29 | 1977-03-02 | Nippon Oil & Fats Co Ltd | Smoke shutting out device |
| JPH0292470U (en) * | 1988-12-26 | 1990-07-23 | ||
| JPH0321351U (en) * | 1989-07-13 | 1991-03-04 | ||
| JPH06246016A (en) * | 1993-02-25 | 1994-09-06 | Mitsubishi Heavy Ind Ltd | Fire extinguisher |
| JPH09653A (en) * | 1995-06-23 | 1997-01-07 | Hitachi Ltd | Sodium flame extinguishing method |
-
1997
- 1997-05-13 JP JP12201297A patent/JP3768328B2/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5086899A (en) * | 1973-12-06 | 1975-07-12 | ||
| JPS5228196A (en) * | 1975-08-29 | 1977-03-02 | Nippon Oil & Fats Co Ltd | Smoke shutting out device |
| JPH0292470U (en) * | 1988-12-26 | 1990-07-23 | ||
| JPH0321351U (en) * | 1989-07-13 | 1991-03-04 | ||
| JPH06246016A (en) * | 1993-02-25 | 1994-09-06 | Mitsubishi Heavy Ind Ltd | Fire extinguisher |
| JPH09653A (en) * | 1995-06-23 | 1997-01-07 | Hitachi Ltd | Sodium flame extinguishing method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008146345A1 (en) * | 2007-05-25 | 2008-12-04 | Fenwal Controls Of Japan, Ltd. | Opening part-closing device, fire extinguisher, and nacelle for wind power generator |
| CN110585623A (en) * | 2019-09-07 | 2019-12-20 | 励土峰 | Indoor expansion fire extinguishing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3768328B2 (en) | 2006-04-19 |
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