JP2000107316A - Extinguishing device - Google Patents
Extinguishing deviceInfo
- Publication number
- JP2000107316A JP2000107316A JP10281516A JP28151698A JP2000107316A JP 2000107316 A JP2000107316 A JP 2000107316A JP 10281516 A JP10281516 A JP 10281516A JP 28151698 A JP28151698 A JP 28151698A JP 2000107316 A JP2000107316 A JP 2000107316A
- Authority
- JP
- Japan
- Prior art keywords
- liquefied
- gas
- fire extinguishing
- storage tank
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- 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、消火装置に関し、
更に詳しくは、所定時間内に液化消火ガスを消火現場に
送液することができる送液可能距離をより延ばすことが
でき、液化消火ガスを消火現場に確実に送液することが
できる消火装置に関する。TECHNICAL FIELD The present invention relates to a fire extinguishing device,
More specifically, the present invention relates to a fire extinguisher that can further extend a liquid-supplyable distance within which a liquefied fire extinguishing gas can be sent to a fire extinguishing site within a predetermined time and can surely send a liquefied fire extinguishing gas to a fire extinguishing site. .
【０００２】[0002]
【従来の技術と発明が解決しようとする課題】従来の消
火装置においては、例えば、液化消火ガスとして、ハロ
ンガスを液化した液化ハロンを充填した消火剤タンクに
窒素ガスを圧入してなる蓄圧式消火剤タンクと、前記蓄
圧式消火剤タンクと消火現場との間に設けられた配管等
の消火剤送液ラインとが採用されていた。2. Description of the Related Art In a conventional fire extinguisher, for example, as a liquefied fire extinguishing gas, a pressure-accumulation type fire extinguishing system in which nitrogen gas is injected into a fire extinguishing agent tank filled with liquefied halon obtained by liquefying halon gas. A fuel tank and a fire extinguisher liquid sending line such as a pipe provided between the pressure accumulating fire extinguisher tank and the fire extinguishing site have been employed.
【０００３】前記消火装置は、その起動時に、消火剤タ
ンク中に圧入された窒素ガスで液化ハロンを配管中に送
り出し、配管中に液化ハロンを送液させ、消火現場に液
化ハロンを送液する仕組みとなっている。When the fire extinguishing device is started, the liquefied halon is sent out into the piping by nitrogen gas injected into the fire extinguishing agent tank, the liquefied halon is sent into the piping, and the liquefied halon is sent to the fire extinguishing site. It has a mechanism.
【０００４】このように、例えば、前記蓄圧式消火剤タ
ンクを採用した従来の消火装置における液化消火ガスの
送液方法を、蓄圧式の送液方法と称することもできる。[0004] Thus, for example, a method for sending liquefied fire-extinguishing gas in a conventional fire extinguisher using the above-mentioned pressure-accumulation type fire-extinguishing agent tank can be referred to as a pressure-accumulation type liquid-feeding method.
【０００５】前記蓄圧式送液方法を採用した従来の消火
装置においては、例えば、（イ）所定時間内、例えば、
１０秒以内に液化ハロンを消火現場に送液することがで
きる送液可能距離が、蓄圧式消火剤タンクにおいて予め
圧入される窒素ガスの圧力に左右されるという問題、
（ロ）前記送液可能距離に限界があり、前記配管の長さ
を送液可能距離の範囲内の長さに制限しなければならな
いという問題等があった。In a conventional fire extinguisher using the above-mentioned accumulating type liquid feeding method, for example, (a) within a predetermined time, for example,
The problem that the liquid transferable distance within which the liquefied halon can be sent to the fire extinguishing site within 10 seconds depends on the pressure of nitrogen gas previously injected into the accumulator type fire extinguishing agent tank,
(B) There is a problem in that there is a limit to the liquid transferable distance, and the length of the pipe must be limited to a length within the liquid transferable distance.
【０００６】一方、地球環境の保護を目的として前記ハ
ロンガスの使用が規制されたことにより、このハロンガ
スの代替ガスとして、例えば、ＦＭ−２００（「ＨＦＣ
−２２７ｅａ」、「１，１，１，２，３，３，３−ヘプ
タフルオロプロパン」と称することもできる。）ガス等
の代替消火ガスが、前記消火装置に採用されるようにな
った。On the other hand, as the use of the above-mentioned halon gas has been regulated for the purpose of protecting the global environment, for example, FM-200 (“HFC
-227ea "and" 1,1,1,2,3,3,3-heptafluoropropane ". ) Alternative fire extinguishing gases, such as gas, have been adopted for the fire extinguishing devices.
【０００７】前記代替消火ガスを採用した消火装置にお
いては、例えば、（ハ）所定時間内、例えば、１０秒以
内に液化代替消火ガス、例えば、ＦＭ−２００ガスを液
化した液化ＦＭ−２００を消火現場に送液することがで
きる送液可能距離が、液化ＦＭ−２００を充填した消火
剤タンクに窒素ガスを圧入してなる蓄圧式消火剤タンク
において予め圧入される窒素ガスの圧力に左右されると
いう問題、（ニ）蓄圧式消火剤タンクから、液化ＦＭ−
２００を配管により消火現場に送液する場合に、液化Ｆ
Ｍ−２００が配管中で泡立ってしまうという問題、
（ホ）前記送液可能距離に限界があり、液化ハロンを採
用した場合と比べて前記配管をさらに短い送液可能距離
の範囲内の長さに制限しなければならないという問題等
があった。In a fire extinguisher using the above alternative fire extinguishing gas, for example, (c) a liquefied alternative fire extinguishing gas, for example, a liquefied FM-200 obtained by liquefying an FM-200 gas is extinguished within a predetermined time, for example, within 10 seconds. The distance over which the liquid can be sent to the site depends on the pressure of the nitrogen gas previously injected in the pressure-accumulation type fire-extinguishing tank in which the nitrogen gas is injected into the fire-extinguishing tank filled with the liquefied FM-200. (D) From the accumulator type fire extinguishing agent tank, the liquefied FM-
When sending 200 to the fire extinguishing site by piping,
The problem that M-200 foams in piping,
(E) There is a limitation on the liquid transferable distance, and there is a problem in that the pipe must be limited to a length within a shorter liquid transferable distance than when liquefied halon is employed.
【０００８】また、前記蓄圧式消火剤タンクは所定の保
護区画内に設置されるのであるが、上述したように従来
の消火装置においては、消火剤を放出するべき消火現場
と保護区画内に設置された蓄圧式消火剤タンクとを連通
する配管の長さを、送液可能距離の範囲内の長さに制限
しなければならないので、（ヘ）送液可能距離の２倍を
超える距離を隔てて位置する複数の消火現場に消火剤を
送液する場合には、複数の消火現場毎にそれぞれ蓄圧式
消火剤タンク及びその保護区画を設けなければならない
という問題、具体的には、例えば、高層ビル等において
所定の高さを隔てて位置する階層毎に蓄圧式消火剤タン
ク及びその保護区画を設けなければならないという問
題、広大な工場敷地内等において所定の距離を隔てて位
置する工場内設備毎に蓄圧式消火剤タンク及びその保護
区画を設けなければならないという問題等があった。In addition, the pressure-accumulation type fire extinguishing agent tank is installed in a predetermined protection section. However, in the conventional fire extinguishing apparatus, as described above, the fire extinguishing site where the fire extinguishing agent is to be discharged and the fire extinguishing agent are installed in the protection section. The length of the pipe that communicates with the stored pressure-accumulation type fire extinguishing agent tank must be limited to a length within the range of the liquid transferable distance. When supplying fire extinguisher to a plurality of fire extinguishing sites located at different positions, it is necessary to provide a pressure-accumulation type extinguishing agent tank and its protection compartment for each of the plurality of fire extinguishing sites. The problem of having to provide a pressure-accumulation type fire-extinguishing agent tank and its protection compartment for each floor of a building, etc. located at a predetermined height, equipment in a factory located at a predetermined distance in a vast factory site, etc. every There is a problem such that must be provided accumulator extinguishing agent tank and its protective compartment.
【０００９】前記（ニ）における液化ＦＭ−２００が配
管中で泡立ってしまう原因としては、例えば、前記蓄圧
式消火剤タンクが、液化ＦＭ−２００を充填した後に、
窒素ガスを圧入することによって製造されるので、液体
ＦＭ−２００中に所定量の窒素ガスが溶存窒素ガスとし
て溶け込んでしまうこと等を挙げることができ、いざ火
災が発生した場合に、前記蓄圧式消火剤タンクから、溶
存窒素ガスが溶け込んだ液化ＦＭ−２００を配管中に流
通させると、この配管中では圧力の低下に伴って溶存窒
素ガスが溶けきれなくなって液体ＦＭ−２００から湧き
出してしまうのである。このことは、ビール瓶の栓を開
いてこのビール瓶からビールをコップに注ぐことをイメ
ージすると容易に理解することができ、前記配管中にお
いて液化ＦＭ−２００が泡立ってしまうことのない消火
装置が望まれている。As a cause of the liquefied FM-200 foaming in the pipe in the above (d), for example, after the pressure accumulating type fire extinguisher tank is filled with the liquefied FM-200,
Since it is manufactured by injecting nitrogen gas, it can be mentioned that a predetermined amount of nitrogen gas is dissolved as dissolved nitrogen gas in the liquid FM-200. In the event of a fire, the pressure accumulation type When the liquefied FM-200 in which the dissolved nitrogen gas is dissolved flows from the fire extinguisher tank through the piping, the dissolved nitrogen gas cannot be completely dissolved in the piping due to a decrease in the pressure and flows out from the liquid FM-200. It is. This can be easily understood by imagining that a beer bottle is opened and beer is poured into a cup from the beer bottle, and a fire extinguishing apparatus that does not cause liquefied FM-200 to foam in the piping is desired. ing.
【００１０】前記液体ＦＭ−２００に溶け込む窒素量
は、前記蓄圧式消火剤タンク内の圧力に比例し、前記液
体ＦＭ−２００から湧き出す窒素量は、前記蓄圧式消火
剤タンク内の圧力と前記配管中の圧力との圧力差に比例
する。こうして前記配管中では、液体ＦＭ−２００とこ
の液体ＦＭ−２００から湧き出した窒素ガスとが混ざり
合って泡状になってしまう。The amount of nitrogen dissolved in the liquid FM-200 is proportional to the pressure in the pressure-accumulation type fire extinguisher tank, and the amount of nitrogen discharged from the liquid FM-200 is equal to the pressure in the pressure-accumulation type fire extinguishing agent tank. It is proportional to the pressure difference from the pressure in the piping. In this manner, in the pipe, the liquid FM-200 and the nitrogen gas spouted from the liquid FM-200 are mixed to form a foam.
【００１１】従来の蓄圧式送液方法においては、このよ
うな溶存窒素ガスに起因する不具合を回避し、所定量の
液化ＦＭ−２００を、所定時間内、例えば、１０秒以内
に、確実に消火現場に送液することを目的として、送液
可能距離を制限せざるを得なかった。言い換えると、従
来の蓄圧式送液方法においては、送液可能距離を延ばそ
うとして、蓄圧式消火剤タンク内への窒素ガスの圧入量
を増やしたとしても、液化ＦＭ−２００における溶存窒
素ガス量が増えてしまい、その結果、配管中における液
化ＦＭ−２００の泡立ちが著しくなり、送液可能距離を
必ずしも延ばすことができないという不具合を生じてい
た。In the conventional pressure-accumulation type liquid feeding method, a problem caused by such dissolved nitrogen gas is avoided, and a predetermined amount of the liquefied FM-200 is reliably extinguished within a predetermined time, for example, within 10 seconds. For the purpose of feeding the liquid to the site, the distance over which the liquid can be transferred had to be limited. In other words, in the conventional pressure-accumulation type liquid feeding method, even if the amount of nitrogen gas injected into the pressure-accumulation type fire-extinguishing agent tank is increased in order to extend the liquid-supplyable distance, the dissolved nitrogen gas in the liquefied FM-200 is increased. As a result, the amount of the liquefied FM-200 foamed in the piping became remarkable, resulting in a problem that the liquid transferable distance could not always be extended.
【００１２】また、このように液体と気体とが混ざり合
った流体の流れを二相流と称した場合において、前記配
管中を流れる液体ＦＭ−２００の圧力損失は、二相流の
計算式によって計算することができる。前記計算式とし
ては、例えば、日本消火装置工業会が定める計算式を採
用することができる。When the flow of the fluid in which the liquid and the gas are mixed is referred to as a two-phase flow, the pressure loss of the liquid FM-200 flowing in the pipe is calculated by a two-phase flow calculation formula. Can be calculated. As the calculation formula, for example, a calculation formula determined by the Japan Fire Extinguisher Association can be adopted.
【００１３】しかしながら、前記計算式を用いて消火装
置の設計、特に配管システムの設計を行なう場合には、
前記（ニ）の問題を回避することを目的として、例え
ば、消火装置の配管内容積、充填比等に関連するτ２
（タウ・ツウ）という値に限度値を設定しなければなら
なかった。However, when designing a fire extinguisher using the above formula, especially when designing a piping system,
For the purpose of avoiding the above-mentioned problem (d), for example, τ2
(Tau-Zhu) had to set a limit.
【００１４】よって、従来の消火装置においては、例え
ば、前記（ニ）の問題を解消して、溶存窒素ガス等に起
因する不具合を生じることなく、消火装置の配管内容
積、充填比等に関連するτ２による制限がなく、煩雑な
設計作業等の制約がない消火装置が望まれていた。Therefore, in the conventional fire extinguisher, for example, the above-mentioned problem (d) can be solved and the troubles caused by the dissolved nitrogen gas and the like can be avoided and the fire extinguisher can be related to the internal volume of the fire extinguisher, the filling ratio, and the like. There is a need for a fire extinguisher that is not limited by τ2 and has no restrictions such as complicated design work.
【００１５】さらに付け加えると、上述した消火装置の
技術分野においては、従来の蓄圧式送液方法における配
管中での液化消火ガスの流通状態を二相流と称するなら
ば、この二相流を、例えば、水道管中での水道水の流通
状態のような一相流にすることが望まれていた。In addition, in the technical field of the fire extinguisher described above, if the state of flow of the liquefied fire-extinguishing gas in the pipe in the conventional pressure-accumulation type liquid feeding method is called a two-phase flow, this two-phase flow is For example, there has been a demand for a one-phase flow such as a state of distribution of tap water in a water pipe.
【００１６】本発明は、従来からの諸問題を解決するこ
とを目的とする。An object of the present invention is to solve the conventional problems.
【００１７】本発明の目的は、液化消火ガスを消火現場
に確実に送液することができる消火装置を提供すること
にある。An object of the present invention is to provide a fire extinguisher capable of reliably sending a liquefied fire extinguishing gas to a fire extinguishing site.
【００１８】本発明の他の目的は、所定時間内に液化消
火ガスを消火現場に送液することができる送液可能距離
をより延ばすことができる消火装置を提供することにあ
る。Another object of the present invention is to provide a fire extinguisher which can extend the distance over which a liquefied fire extinguishing gas can be sent to a fire extinguishing site within a predetermined time.
【００１９】本発明の他の目的は、液化消火ガスを複数
箇所の消火現場に確実に送液することができる消火装置
を提供することにある。Another object of the present invention is to provide a fire extinguisher capable of reliably sending liquefied fire extinguishing gas to a plurality of fire extinguishing sites.
【００２０】本発明の他の目的は、省スペース化を実現
することができる消火装置を提供することにある。Another object of the present invention is to provide a fire extinguisher that can save space.
【００２１】本発明の他の目的は、従来のハロン消火装
置用に配設された既存の消火用配管を新たな配管系に変
えることなく、そのまま使用することのできる消火装置
を提供することにある。Another object of the present invention is to provide a fire extinguisher which can be used as it is without changing an existing fire extinguishing pipe provided for a conventional halon fire extinguishing apparatus to a new piping system. is there.
【００２２】[0022]
【課題を解決するための手段】前記課題を解決するため
の手段は、消火の際に、液化消火ガス貯留槽内に貯留さ
れている液化消火ガスを、加圧用ガス貯留槽内に加圧状
態にある加圧ガスを前記液化消火ガス貯留槽内に圧入す
ることにより、前記液化消火ガス貯留槽に結合された配
管内を液化消火ガスが一相流となって消火現場に送液さ
れるようにしてなることを特徴とする消火装置である。Means for solving the above-mentioned problems are as follows. At the time of fire extinguishing, the liquefied fire extinguishing gas stored in the liquefied fire extinguishing gas storage tank is pressurized in the pressurized gas storage tank. Is injected into the liquefied fire extinguishing gas storage tank so that the liquefied fire extinguishing gas becomes a one-phase flow and is sent to the fire extinguishing site in a pipe connected to the liquefied fire extinguishing gas storage tank. A fire extinguisher characterized in that:
【００２３】[0023]
【発明の実施の形態】（一般的説明）本発明の消火装置
における主要構成要素として、消火現場に送液する液化
消火ガスを貯留する液化消火ガス貯留槽と、前記液化消
火ガス貯留槽内を所定圧力に加圧する加圧用ガスを貯留
する加圧用ガス貯留槽とを挙げることができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (General Description) As main components of a fire extinguishing system according to the present invention, a liquefied fire extinguishing gas storage tank for storing a liquefied fire extinguishing gas to be sent to a fire extinguishing site, and an inside of the liquefied fire extinguishing gas storage tank. A pressurized gas storage tank that stores a pressurized gas that is pressurized to a predetermined pressure can be used.
【００２４】本発明における液化消火ガスとしては、例
えば、ＦＭ−２００ガス等の消火ガスを液化した液化Ｆ
Ｍ−２００等の液化代替フロン等を挙げることができ、
これらは１種単独で用いても良いし、２種以上を併用し
ても良く、さらに、添加剤等を添加しても良い。The liquefied fire extinguishing gas in the present invention is, for example, a liquefied F obtained by liquefying a fire extinguishing gas such as FM-200 gas.
A liquefied alternative Freon such as M-200 can be mentioned,
These may be used alone or in combination of two or more. Further, additives and the like may be added.
【００２５】本発明においては、前記液化消火ガスが、
例えば、液化消火ガスが流通可能な流路等、具体的に
は、例えば、配管等を通じて消火現場に送液されること
ができる。In the present invention, the liquefied fire extinguishing gas is
For example, the liquefied fire-extinguishing gas can be sent to a fire extinguishing site through a flow path or the like, specifically, for example, a pipe.
【００２６】前記配管としては、その内部を流通する前
記液化消火ガスを消火現場に送液することができる限
り、特に制限がなく、具体的には例えば、パイプ、ホー
ス、フレキシブルホース等を挙げることができる。The pipe is not particularly limited as long as the liquefied fire-extinguishing gas flowing through the pipe can be sent to a fire-extinguishing site. Specific examples include pipes, hoses, and flexible hoses. Can be.
【００２７】本発明における液化消火ガス貯留槽は、前
記液化消火ガスを貯留することができ、後述する加圧用
ガスによる所定圧力に耐え得る耐圧性を有する。The liquefied fire extinguishing gas storage tank according to the present invention can store the liquefied fire extinguishing gas and has a pressure resistance that can withstand a predetermined pressure by a pressurizing gas described later.
【００２８】前記液化消火ガス貯留槽としては、例え
ば、ボンベ、タンク等を挙げることができる。Examples of the liquefied fire-extinguishing gas storage tank include a cylinder and a tank.
【００２９】本発明においては消火現場において充分な
消火ガスの放出量を確保することができる限り、例え
ば、液化消火ガス貯留槽の容積、液化消火ガス貯留槽の
外径寸法等には特に制限がない。In the present invention, as long as a sufficient amount of fire extinguishing gas can be released at the fire extinguishing site, for example, the volume of the liquefied fire extinguishing gas storage tank and the outer diameter of the liquefied fire extinguishing gas storage tank are not particularly limited. Absent.
【００３０】本発明においては、複数の前記液化消火ガ
ス貯留槽を用いても良い。In the present invention, a plurality of the liquefied fire extinguishing gas storage tanks may be used.
【００３１】本発明においては消火現場において充分な
消火ガスの放出量を確保することができる限り、前記液
化消火ガスの貯留量には特に制限がない。In the present invention, the storage amount of the liquefied fire extinguishing gas is not particularly limited as long as a sufficient amount of fire extinguishing gas can be released at the fire extinguishing site.
【００３２】前記配管においては、その一端を前記液化
消火ガス貯留槽に連通・連結し、その他端を消火現場に
向かう例えば消火ノズルに連通・連結することができ
る。この配管においては、前記液化消火ガス貯留槽内に
おいてその液化消火ガス貯留槽の底面近傍にまで延在
し、且つその底面近傍で開口する一端開口部を備えた内
部配管の出口に、この配管の一端が結合されていても良
く、また、配管の一端開口部が、前記液化消火ガス貯留
槽内の底面近傍にまで延在するように、配管を前記液化
消火ガス貯留槽に連結しても良い。In the pipe, one end can be connected to and connected to the liquefied fire extinguishing gas storage tank, and the other end can be connected to and connected to, for example, a fire extinguishing nozzle which goes to a fire extinguishing site. In this piping, the inside of the liquefied fire extinguishing gas storage tank extends to the vicinity of the bottom surface of the liquefied fire extinguishing gas storage tank, and is provided with an end of an internal piping having one end opening opening near the bottom surface of the liquefied fire extinguishing gas storage tank. One end may be connected, and the pipe may be connected to the liquefied fire extinguishing gas storage tank such that one end opening of the pipe extends to near the bottom surface in the liquefied fire extinguishing gas storage tank. .
【００３３】前記配管には、この配管を開閉して液化消
火ガスの流通を制御する消火剤流通制御弁を設けること
ができ、前記消火剤流通制御弁は、例えば、前記配管の
一端側に設けても良いし、前記配管の他端側に設けても
良いし、前記配管の一端側及び他端側に設けても良い。The pipe may be provided with a fire extinguisher flow control valve for controlling the flow of the liquefied fire extinguishing gas by opening and closing the pipe. The fire extinguisher flow control valve may be provided, for example, at one end of the pipe. It may be provided at the other end of the pipe, or at one end and the other end of the pipe.
【００３４】本発明における加圧用ガス貯留槽は、前記
液化消火ガス貯留槽内を所定圧力に加圧する加圧用ガス
を貯留することができ、この加圧用ガス貯留槽は、前記
加圧用ガスを、前記液化消火ガス貯留槽内の圧力よりも
高い所定圧力で貯留することができる。The pressurized gas storage tank according to the present invention can store a pressurized gas for pressurizing the inside of the liquefied fire extinguishing gas storage tank to a predetermined pressure, and the pressurized gas storage tank stores the pressurized gas. It can be stored at a predetermined pressure higher than the pressure in the liquefied fire extinguishing gas storage tank.
【００３５】前記加圧用ガスとしては、例えば、窒素、
アルゴン、ヘリウム等の不活性ガス、空気等を挙げるこ
とができる。As the pressurizing gas, for example, nitrogen,
An inert gas such as argon and helium, air and the like can be mentioned.
【００３６】前記加圧用ガス貯留槽としては、例えば、
ボンベ、タンク等を挙げることができる。As the pressurized gas storage tank, for example,
A cylinder, a tank, and the like can be given.
【００３７】本発明においては消火現場において充分な
消火ガスの放出量を確保することができる限り、例え
ば、加圧用ガス貯留槽の容積、加圧用ガス貯留槽の外径
寸法等には、特に制限がない。In the present invention, as long as a sufficient amount of fire extinguishing gas can be released at the fire extinguishing site, for example, the volume of the pressurized gas storage tank and the outer diameter of the pressurized gas storage tank are particularly limited. There is no.
【００３８】本発明においては、複数の前記加圧用ガス
貯留槽を用いて、複数の前記加圧用ガス貯留槽から液化
消火ガス貯留槽内に、各前記加圧用ガス貯留槽から同時
にあるいは順次に加圧用ガスを前記液化消火ガス貯留槽
内に供給するようにしても良い。In the present invention, the plurality of pressurizing gas storage tanks are used to simultaneously or sequentially add the plurality of pressurizing gas storage tanks into the liquefied fire extinguishing gas storage tank from each of the pressurizing gas storage tanks. A pressure gas may be supplied into the liquefied fire extinguishing gas storage tank.
【００３９】本発明においては消火現場において充分な
消火ガスの放出量を確保することができる限り、前記加
圧ガスの貯留量には特に制限がない。In the present invention, the storage amount of the pressurized gas is not particularly limited as long as a sufficient amount of fire extinguishing gas can be released at the fire extinguishing site.
【００４０】本発明においては、前記液化消火ガス貯留
槽と前記加圧用ガス貯留槽とを、例えば、加圧用ガス供
給管等によって連通することができる。In the present invention, the liquefied fire extinguishing gas storage tank and the pressurized gas storage tank can be communicated with each other by, for example, a pressurized gas supply pipe.
【００４１】前記加圧用ガス供給管においては、その一
端を前記加圧用ガス貯留槽に連通ないし連結し、その他
端を前記液化消火ガス貯留槽に連通ないし連結するよう
に配置することができ、前記加圧用ガス供給管の他端側
開口部は前記液化消火ガス貯留槽の上面近傍、特に貯留
する液化消火ガスにおける液面よりも高い位置に配置す
るのが好ましい。The pressurizing gas supply pipe may be arranged such that one end thereof communicates with or is connected to the pressurizing gas storage tank and the other end communicates with or is connected to the liquefied fire extinguishing gas storage tank. The opening on the other end side of the gas supply pipe for pressurization is preferably disposed near the upper surface of the liquefied fire extinguishing gas storage tank, particularly at a position higher than the liquid level of the liquefied fire extinguishing gas to be stored.
【００４２】前記加圧用ガス供給管の他端側開口部を、
前記液化消火ガス貯留槽の上面近傍、特に貯留する液化
消火ガスにおける液面よりも高い位置に配置しておく
と、液化消火ガス貯留槽内に加圧用ガスを圧入した場合
に、液化消火ガス中に加圧用ガスが溶け込む量を効果的
に抑制することができ、例えば、送液中に液化消火ガス
が泡立つことに起因して実用上の不具合を生じること等
をより効果的に防止することができる。The opening at the other end of the gas supply pipe for pressurizing is
When it is disposed near the upper surface of the liquefied fire extinguishing gas storage tank, particularly at a position higher than the liquid level of the liquefied fire extinguishing gas to be stored, when the pressurizing gas is injected into the liquefied fire extinguishing gas storage tank, the It is possible to effectively suppress the amount of the pressurizing gas from dissolving into the liquid, for example, to more effectively prevent practical problems caused by bubbling of the liquefied fire-extinguishing gas during liquid supply. it can.
【００４３】前記加圧用ガス供給管には、この加圧用ガ
ス供給管を開閉して加圧用ガスの流通を制御する加圧用
ガス流通制御弁を設けることができ、前記加圧用ガス流
通制御弁は、例えば、前記加圧用ガス供給管の一端側に
設けても良いし、前記加圧用ガス供給管の他端側に設け
ても良いし、前記加圧用ガス供給管の一端側及び他端側
に設けても良い。The pressurizing gas supply pipe may be provided with a pressurizing gas flow control valve for opening and closing the pressurizing gas supply pipe to control the flow of the pressurizing gas. For example, it may be provided at one end of the gas supply pipe for pressurization, may be provided at the other end of the gas supply pipe for pressurization, or at one end and the other end of the gas supply pipe for pressurization. May be provided.
【００４４】さらに、前記加圧用ガス供給管には、この
加圧用ガス供給管内を流通する加圧用ガスの流量を調整
する加圧用ガス流量調整器を介装することができる。こ
の加圧用ガス流量調整器としては、例えば、レギュレー
タ等を挙げることができ、このレギュレータにより、前
記加圧用ガス貯留槽から液化消火ガス貯留槽内に所定量
の加圧用ガスを供給することができる。Further, the pressurizing gas supply pipe may be provided with a pressurizing gas flow controller for adjusting the flow rate of the pressurizing gas flowing through the pressurizing gas supply pipe. As the pressurized gas flow rate regulator, for example, a regulator or the like can be mentioned. With this regulator, a predetermined amount of pressurized gas can be supplied from the pressurized gas storage tank into the liquefied fire extinguishing gas storage tank. .
【００４５】また、本発明においては、前記加圧用ガス
貯留槽と液化消火ガス貯留槽とを連通ないし連結して液
化消火ガス貯留槽内の圧力を所定圧力に加圧することに
より、消火現場において充分なＦＭ−２００ガスの放出
量を確保することができるように、予め前記液化消火ガ
ス貯留槽の容量、液化消火ガスの貯留量、加圧用ガス貯
留槽の容量、加圧用ガスの貯留量、配管、及び加圧用ガ
ス供給管等を設計しておくことができる。In the present invention, the pressurizing gas storage tank and the liquefied fire extinguishing gas storage tank are communicated or connected to each other to pressurize the pressure in the liquefied fire extinguishing gas storage tank to a predetermined pressure, so that the fire extinguishing site can be sufficiently improved. Liquefied fire gas storage tank capacity, liquefied fire gas storage capacity, pressurized gas storage capacity, pressurized gas storage capacity, piping , And a gas supply pipe for pressurization can be designed.
【００４６】本発明においては、例えば、前記液化消火
ガス貯留槽内における液化消火ガス量を検出することが
できる消火剤量検出器、前記加圧用ガスにより加圧され
る前記消化剤貯留槽内の圧力（以下、「液化消火ガス貯
留槽内圧力」と称することがある。）を検出することが
できる液化消火ガス貯留槽内圧力計、前記加圧用ガス貯
留槽内の圧力（以下、「加圧用ガス貯留槽内圧力」と称
することがある。）を検出することができる加圧用ガス
貯留槽内圧力計等を設けることができる。In the present invention, for example, a fire extinguishing agent amount detector capable of detecting the amount of liquefied fire extinguishing gas in the liquefied fire extinguishing gas storage tank, and the extinguishing agent inside the extinguishing agent storage tank pressurized by the pressurizing gas. A pressure gauge in the liquefied fire extinguishing gas storage tank capable of detecting a pressure (hereinafter, may be referred to as a “pressure in the liquefied fire extinguishing gas storage tank”), and a pressure in the pressurized gas storage tank (hereinafter referred to as “pressurized gas storage tank”). A pressure gauge in the gas reservoir for pressurization that can detect the pressure in the gas reservoir may be provided.
【００４７】前記液化消火ガス貯留槽内圧力計として具
体的には、例えば、前記加圧用ガス供給管に介装された
レギュレータに備えられた圧力計等を挙げることができ
る。Specific examples of the pressure gauge in the liquefied fire-extinguishing gas storage tank include a pressure gauge provided in a regulator interposed in the pressurizing gas supply pipe.
【００４８】前記消火剤流通制御弁、前記加圧用ガス流
通制御弁、前記加圧用ガス流量調整器、前記消火剤量検
出器、前記液化消火ガス貯留槽内圧力計、前記加圧用ガ
ス貯留槽内圧力計等は、例えば、シーケンサ、コンピュ
ータ等の制御手段により制御することができる。The fire extinguisher flow control valve, the pressurizing gas flow control valve, the pressurizing gas flow regulator, the fire extinguisher amount detector, the liquefied fire extinguishing gas storage tank pressure gauge, and the pressurizing gas storage tank The pressure gauge and the like can be controlled by control means such as a sequencer and a computer.
【００４９】前記制御手段は、例えば、火災報知器、煙
検出器、温度センサ、ガスセンサ等の各種警報器等が出
力する警報信号を入力することができ、この警報信号を
入力した後に消火現場に液化消火ガスを送液することが
できる。The control means can input an alarm signal output from various alarms such as a fire alarm, a smoke detector, a temperature sensor, a gas sensor and the like. Liquefied fire extinguishing gas can be sent.
【００５０】本発明においては、前記液化消火ガス貯留
槽と前記加圧用ガス貯留槽とを採用し、前記液化消火ガ
スと前記加圧用ガスとをそれぞれ単独で貯留することに
より、従来の蓄圧式の送液方法における諸問題を解消す
ることができる。In the present invention, the conventional liquefied fire-extinguishing gas storage tank and the pressurized gas storage tank are employed, and the liquefied fire-extinguishing gas and the pressurized gas are separately stored, respectively. Various problems in the liquid feeding method can be solved.
【００５１】例えば、前記液化消火ガス貯留槽の容量及
び前記加圧用ガス貯留槽の容量を所望の容量に増やすこ
とができるので、前記液化消火ガスの貯留量及び前記加
圧用ガスの貯留量に制限がなく、所定時間内における液
化消火ガスの送液可能距離を理論上ではほぼ無制限に延
ばすことができ、実用上前記所定時間を、例えば、１０
秒に設定した場合においても、従来と比べて送液可能距
離をより延ばすことができる。For example, since the capacity of the liquefied fire extinguishing gas storage tank and the capacity of the pressurized gas storage tank can be increased to desired capacities, the storage amount of the liquefied fire extinguishing gas and the storage amount of the pressurized gas are limited. In theory, the distance over which the liquefied fire-extinguishing gas can be sent within a predetermined time can be extended virtually indefinitely.
Even when set to seconds, the liquid transferable distance can be further extended as compared with the conventional case.
【００５２】さらに、前記液化消火ガスに前記加圧用ガ
スが溶け込むことによる実用上の不具合を回避すること
ができ、例えば、従来の消火装置における配管中で液化
消火ガスと窒素ガスとが泡立って二相流を形成してしま
うという不具合を回避することができ、従来の消火装置
の設計における煩雑な設計作業、例えば、τ２による補
正作業等の制約がない。Further, it is possible to avoid practical problems caused by the dissolution of the pressurizing gas into the liquefied fire extinguishing gas. For example, the liquefied fire extinguishing gas and the nitrogen gas are bubbling in the piping of a conventional fire extinguishing system. The problem of forming a phase flow can be avoided, and there is no restriction on complicated design work in the design of a conventional fire extinguisher, for example, correction work due to τ2.
【００５３】本発明の消火装置における液化消火ガスの
送液方法は、実用上、例えば、配管中における液化消火
ガスが二相流を形成して不具合を生じることがないの
で、配管中の液化消火ガスが一相流を形成するピストン
フロー式の送液方法と称することができる。In the method for sending liquefied fire extinguishing gas in the fire extinguishing apparatus of the present invention, practically, for example, the liquefied fire extinguishing gas in the piping does not form a two-phase flow and does not cause any trouble, so It can be called a piston flow type liquid sending method in which gas forms a one-phase flow.
【００５４】本発明の消火装置における前記ピストンフ
ロー式の送液方法として具体的には、例えば、定常流ピ
ストンフロー式の送液方法、非定常流ピストンフロー式
の送液方法、直前蓄圧ピストンフロー式の送液方法等を
挙げることができる。Specific examples of the piston flow type liquid feeding method in the fire extinguisher of the present invention include, for example, a steady flow piston flow type liquid feeding method, an unsteady flow piston flow type liquid feeding method, and an immediately preceding pressure accumulating piston flow. A liquid feeding method of a formula can be used.
【００５５】＜定常流ピストンフロー式の送液方法＞定
常流ピストンフロー式の送液方法においては、消火現場
に液化消火ガスを送液する場合に、先ず、加圧用ガス貯
留槽から液化消火ガス貯留槽への加圧用ガスの供給が開
始され、液化消火ガス貯留槽内圧力が所定圧力に達する
と、消火現場への液化消火ガスの送液が開始される。<Constant Flow Piston Flow Type Liquid Feeding Method> In the steady flow piston flow type liquid feeding method, when the liquefied fire extinguishing gas is sent to the fire extinguishing site, first, the liquefied fire extinguishing gas is supplied from the pressurized gas storage tank. When the supply of the pressurizing gas to the storage tank is started and the pressure in the liquefied fire extinguishing gas storage tank reaches a predetermined pressure, the supply of the liquefied fire extinguishing gas to the fire extinguishing site is started.
【００５６】本発明の消火装置においては、例えば、前
記加圧用ガス供給管に加圧用ガス流量調整器を介装し、
この加圧用ガス流量調整器よりも上流側に加圧用ガス流
通制御弁を設けた場合において、加圧用ガス流通制御弁
を開いた後、瞬時に液化消火ガス貯留槽内の圧力を所定
圧力に加圧することができるように、前記加圧用ガス流
量調整器を予め所定の状態に制御しておくことができ
る。In the fire extinguisher according to the present invention, for example, a gas flow regulator for pressurization is interposed in the gas supply pipe for pressurization,
When a pressurizing gas flow control valve is provided upstream of the pressurizing gas flow controller, the pressure in the liquefied fire extinguishing gas storage tank is instantaneously increased to a predetermined pressure after opening the pressurizing gas flow control valve. The pressurizing gas flow regulator can be controlled to a predetermined state in advance so that the pressure can be increased.
【００５７】例えば、前記加圧用ガス流量調整器として
前記レギュレータを採用した場合において、加圧用ガス
流通制御弁を開いた後、瞬時に液化消火ガス貯留槽内の
圧力を所定圧力に加圧することができるように、前記レ
ギュレータを予め所定の待機状態に設定しておくことが
できる。For example, when the regulator is employed as the pressurized gas flow rate regulator, the pressure in the liquefied fire extinguishing gas storage tank is instantaneously increased to a predetermined pressure after the pressurized gas flow control valve is opened. The regulator can be set to a predetermined standby state in advance so as to be able to do so.
【００５８】消火現場への液化消火ガスの送液が開始さ
れると、前記液化消火ガス貯留槽内の圧力が低下するの
で、前記液化消火ガス貯留槽内圧力が所定圧力を保持す
るように、加圧用ガス貯留槽から液化消火ガス貯留槽へ
の加圧用ガスの供給を制御する。When the supply of the liquefied fire-extinguishing gas to the fire-extinguishing site is started, the pressure in the liquefied fire-extinguishing gas storage tank decreases, so that the pressure in the liquefied fire-extinguishing gas storage tank is maintained at a predetermined pressure. The supply of pressurizing gas from the pressurizing gas storage tank to the liquefied fire extinguishing gas storage tank is controlled.
【００５９】＜非定常流ピストンフロー式の送液方法＞
前記定常流ピストンフロー式の送液方法において採用し
た前記レギュレータを省略し、消火現場への液化消火ガ
スの送液が開始された後に、液化消火ガス貯留槽内の圧
力が低下した場合に、この液化消火ガス貯留槽内の圧力
の低下を制御せずに液化消火ガスの送液を続ける送液方
法（以下、「非定常流ピストンフロー式第１の態様」と
称することがある。）、並びに、前記消火剤流通制御弁
及び前記加圧用ガス流通制御弁を同時に開くことにより
液化消火ガス貯留槽から消火現場に液化消火ガスを送液
する場合に、液化消火ガス貯留槽内の圧力を制御せずに
液化消火ガスの送液を続ける送液方法（以下、「非定常
流ピストンフロー式第２の態様」と称することがあ
る。）等を非定常流ピストンフロー式の送液方法と称す
ることができる。<Unsteady flow piston flow type liquid feeding method>
When the pressure in the liquefied fire-extinguishing gas storage tank is reduced after the start of the liquefied fire-extinguishing gas transmission to the fire extinguishing site, the regulator adopted in the steady-flow piston flow type liquid feeding method is omitted. A liquid sending method (hereinafter, sometimes referred to as “unsteady flow piston flow type first mode”) in which the liquid quenching gas is continuously sent without controlling the pressure drop in the liquefied fire gas storage tank, and When the liquefied extinguishing gas is sent from the liquefied extinguishing gas storage tank to the fire extinguishing site by simultaneously opening the extinguishing agent flow control valve and the pressurizing gas flow control valve, the pressure in the liquefied extinguishing gas storage tank is controlled. A liquid sending method (hereinafter, may be referred to as “unsteady flow piston flow type second mode”) that continuously feeds the liquefied fire extinguishing gas without being referred to as an unsteady flow piston flow type liquid sending method. Can be.
【００６０】非定常流ピストンフロー式第１の態様にお
いては、消火現場に液化消火ガスを送液する場合に、先
ず、加圧用ガス貯留槽から液化消火ガス貯留槽への加圧
用ガスの供給が開始され、液化消火ガス貯留槽内圧力が
所定圧力に達すると、消火現場への液化消火ガスの送液
が開始される。この非定常流ピストンフロー式第１の態
様においては、前記加圧用ガス貯留槽から液化消火ガス
貯留槽への加圧用ガス供給量の制御を行なう必要がな
い。In the first embodiment of the unsteady flow piston flow type, when the liquefied fire extinguishing gas is sent to the fire extinguishing site, first, the supply of the pressurized gas from the pressurized gas storage tank to the liquefied fire extinguishing gas storage tank is performed. When the pressure is started and the pressure in the liquefied fire extinguishing gas storage tank reaches a predetermined pressure, the supply of liquefied fire extinguishing gas to the fire extinguishing site is started. In the first embodiment of the unsteady flow piston flow type, it is not necessary to control the supply amount of pressurizing gas from the pressurizing gas storage tank to the liquefied fire extinguishing gas storage tank.
【００６１】消火現場への液化消火ガスの送液が開始さ
れると、前記液化消火ガス貯留槽内の圧力が低下するの
で、送液速度も低下する。When the supply of the liquefied fire-extinguishing gas to the fire extinguishing site is started, the pressure in the liquefied fire-extinguishing gas storage tank is reduced, so that the liquid sending speed is also reduced.
【００６２】前記加圧用ガス貯留槽から液化消火ガス貯
留槽への加圧用ガスの供給が開始されてから、消火現場
での所定量の消火ガスの放出が終了するまでの放出所要
時間は、例えば、配管内容積、送液距離等にもよるが、
通常、例えば１０秒である。The required discharge time from the start of the supply of the pressurizing gas from the pressurizing gas storage tank to the liquefied fire extinguishing gas storage tank to the end of the release of the predetermined amount of the fire extinguishing gas at the fire extinguishing site is, for example, , Depending on the volume inside the piping,
Usually, for example, 10 seconds.
【００６３】非定常流ピストンフロー式第２の態様にお
いては、消火現場に液化消火ガスを送液する場合に、前
記消火剤流通制御弁と前記加圧用ガス流通制御弁とを同
時に開くことにより、加圧用ガス貯留槽から液化消火ガ
ス貯留槽への加圧用ガスの供給と、液化消火ガス貯留槽
から消火現場への液化消火ガスの送液とが同時に開始さ
れる。この非定常流ピストンフロー式第２の態様におい
ては、前記加圧用ガス貯留槽から液化消火ガス貯留槽へ
の加圧用ガス供給量の制御を行なう必要がない。In the second embodiment of the unsteady flow piston flow type, when the liquefied fire extinguishing gas is sent to the fire extinguishing site, the fire extinguishing agent flow control valve and the pressurizing gas flow control valve are simultaneously opened. The supply of pressurizing gas from the pressurized gas storage tank to the liquefied fire extinguishing gas storage tank and the sending of the liquefied fire extinguishing gas from the liquefied fire extinguishing gas storage tank to the fire extinguishing site are simultaneously started. In the second embodiment of the unsteady flow piston flow type, it is not necessary to control the supply amount of the pressurizing gas from the pressurizing gas storage tank to the liquefied fire extinguishing gas storage tank.
【００６４】前記消火剤流通制御弁と前記加圧用ガス流
通制御弁とを同時に開いてから、液化消火ガス貯留槽内
圧力が所定圧力に達する以前においては、前記液化消火
ガス貯留槽内の圧力及び液化消火ガスの送液速度は上昇
し、液化消火ガス貯留槽内圧力が所定圧力に達した後に
おいては、前記液化消火ガス貯留槽内の圧力及び液化消
火ガスの送液速度は低下する。After the fire extinguishing agent flow control valve and the pressurizing gas flow control valve are simultaneously opened and before the pressure in the liquefied fire extinguishing gas storage tank reaches a predetermined pressure, the pressure in the liquefied fire extinguishing gas storage tank and The feed rate of the liquefied fire gas increases, and after the pressure in the liquefied fire gas storage tank reaches a predetermined pressure, the pressure in the liquefied fire gas storage tank and the feed rate of the liquefied fire gas decrease.
【００６５】前記消火剤流通制御弁と前記加圧用ガス流
通制御弁とを同時に開いてから、消火現場での所定量の
消火ガスの放出が終了するまでの放出所要時間は、例え
ば、配管内容積、送液距離等にもよるが、通常、例えば
１０秒である。The required discharge time from the simultaneous opening of the fire extinguishing agent flow control valve and the pressurizing gas flow control valve to the end of the discharge of a predetermined amount of fire extinguishing gas at the fire extinguishing site is determined by, for example, Usually, for example, 10 seconds, although it depends on the liquid feeding distance and the like.
【００６６】＜直前蓄圧ピストンフロー式の送液方法＞
直前蓄圧ピストンフロー式の送液方法においては、消火
現場に液化消火ガスを送液する場合に、先ず、加圧用ガ
ス貯留槽から液化消火ガス貯留槽への加圧用ガスの供給
が開始され、液化消火ガス貯留槽内圧力が所定圧力に達
すると、前記加圧用ガス貯留槽から液化消火ガス貯留槽
への加圧用ガスの供給が停止される。<Primary Pressure Accumulation Piston Flow Type Liquid Feeding Method>
In the immediately preceding accumulator piston flow type liquid feeding method, when liquefied fire extinguishing gas is sent to the fire extinguishing site, first, supply of pressurized gas from the pressurized gas storage tank to the liquefied fire extinguishing gas storage tank is started, and liquefaction is started. When the pressure in the fire extinguishing gas storage tank reaches a predetermined pressure, the supply of the pressurizing gas from the pressurizing gas storage tank to the liquefied fire extinguishing gas storage tank is stopped.
【００６７】前記加圧用ガス貯留槽から液化消火ガス貯
留槽への加圧用ガスの供給を停止した後に、消火現場へ
の液化消火ガスの送液が開始される。After the supply of the pressurizing gas from the pressurizing gas storage tank to the liquefied fire extinguishing gas storage tank is stopped, the supply of the liquefied fire extinguishing gas to the fire extinguishing site is started.
【００６８】消火現場への液化消火ガスの送液が開始さ
れると、前記液化消火ガス貯留槽内の圧力が低下するの
で、送液速度も低下する。When the supply of the liquefied fire-extinguishing gas to the fire-extinguishing site is started, the pressure in the liquefied fire-extinguishing gas storage tank is reduced, so that the liquid sending speed is also reduced.
【００６９】前記加圧用ガス貯留槽から液化消火ガス貯
留槽への加圧用ガスの供給が開始されてから、消火現場
での所定量の消火ガスの放出が終了するまでの放出所要
時間は、例えば、配管内容積、送液距離等にもよるが、
通常、例えば１０秒である。The required discharge time from the start of the supply of the pressurizing gas from the pressurizing gas storage tank to the liquefied fire extinguishing gas storage tank until the end of the release of the predetermined amount of the fire extinguishing gas at the fire extinguishing site is, for example, , Depending on the volume inside the piping,
Usually, for example, 10 seconds.
【００７０】前記非定常流ピストンフロー式の送液方法
及び直前蓄圧ピストンフロー式の送液方法においては、
消火現場において充分な消火ガスの放出量を確保するこ
とができるように、予め前記液化消火ガス貯留槽の容
量、消火剤の貯留量、加圧用ガス貯留槽の容量、加圧用
ガスの貯留量、配管、及び加圧用ガス供給管等を設計し
ておくことにより、送液中に前記液化消火ガス貯留槽内
圧力及び送液速度が低下しても、実用上全く不具合を生
じることがない。In the unsteady flow piston flow type liquid feeding method and the immediately preceding pressure accumulating piston flow type liquid feeding method,
In order to ensure a sufficient amount of fire extinguishing gas released at the fire extinguishing site, the capacity of the liquefied fire extinguishing gas storage tank, the amount of extinguishing agent stored, the capacity of the pressurizing gas storage tank, the amount of pressurized gas storage, By designing the piping, the gas supply pipe for pressurization, and the like, even if the pressure in the liquefied fire-extinguishing gas storage tank and the liquid sending speed are reduced during liquid sending, practically no problems occur.
【００７１】本発明においては、前記加圧用ガス貯留槽
から液化消火ガス貯留槽への加圧用ガスの供給が開始さ
れてから、消火現場での所定量の消火ガスの放出が終了
するまでの放出所要時間が、通常、１０秒であるので、
加圧用ガスによる液化消火ガスの加圧時間を極めて短時
間に抑えることができる。よって、液化消火ガス中に加
圧用ガスが溶け込む量を実用上不具合を生じない量に抑
制することができ、送液中に液化消火ガスが泡立つこと
に起因する実用上の不具合を生じることがない。In the present invention, the discharge from the pressurized gas storage tank to the liquefied fire-extinguishing gas storage tank after the start of the supply of the pressurized gas to the liquefied fire-extinguishing gas storage tank until the discharge of a predetermined amount of the fire-extinguishing gas at the fire extinguishing site is completed. The required time is usually 10 seconds,
The time for pressurizing the liquefied fire extinguishing gas by the pressurizing gas can be suppressed to an extremely short time. Therefore, the amount of the pressurizing gas dissolved into the liquefied fire extinguishing gas can be suppressed to an amount that does not cause a practical problem, and there is no practical problem caused by the liquefied fire extinguishing gas bubbling during liquid sending. .
【００７２】（具体的説明）以下、図面を参照しなが
ら、本発明の一実施例について詳細に説明する。(Specific Description) Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
【００７３】図１に示すように、本発明の一実施例の消
火装置１は、液化消火ガス貯留槽である液化ＦＭ−２０
０貯留槽２と、加圧用ガス貯留槽である窒素ガス貯留槽
３と、配管４と、窒素ガス供給管５と、液化ＦＭ−２０
０流通制御弁６と、一端側窒素ガス流通制御弁７ａと、
他端側窒素ガス流通制御弁７ｂと、レギュレータ８とを
有する。As shown in FIG. 1, a fire extinguisher 1 according to one embodiment of the present invention is a liquefied FM-20 which is a liquefied fire extinguishing gas storage tank.
0 storage tank 2, nitrogen gas storage tank 3, which is a pressurized gas storage tank, pipe 4, nitrogen gas supply pipe 5, and liquefied FM-20.
0 flow control valve 6, one end side nitrogen gas flow control valve 7a,
It has the other end side nitrogen gas flow control valve 7 b and the regulator 8.
【００７４】前記消火装置１は、前記液化ＦＭ−２００
貯留槽２に貯留された液化ＦＭ−２００を配管４を通じ
て消火現場（図示せず）に送液することができる。The fire extinguisher 1 comprises the liquefied FM-200
The liquefied FM-200 stored in the storage tank 2 can be sent to a fire extinguishing site (not shown) through the pipe 4.
【００７５】前記配管４の一端側開口部４ａは、前記液
化ＦＭ−２００貯留槽２の底面２ａ近傍に配置されてな
る。The one end side opening 4 a of the pipe 4 is arranged near the bottom surface 2 a of the liquefied FM-200 storage tank 2.
【００７６】前記窒素ガス供給管５においては、その一
端５ａが前記窒素ガス貯留槽３に連通し、その他端５ｂ
が前記液化ＦＭ−２００貯留槽２に連通するように連結
されてなり、前記窒素ガス供給管５の他端側開口部５ｃ
は、前記液化ＦＭ−２００貯留槽２の上面２ｂ近傍に開
口するように配置されてなる。The nitrogen gas supply pipe 5 has one end 5a communicating with the nitrogen gas storage tank 3 and the other end 5b.
Is connected so as to communicate with the liquefied FM-200 storage tank 2, and the other end side opening 5 c of the nitrogen gas supply pipe 5 is formed.
Is arranged so as to open near the upper surface 2b of the liquefied FM-200 storage tank 2.
【００７７】前記液化ＦＭ−２００流通制御弁６は、前
記配管４を開閉して液化ＦＭ−２００の流通を制御する
ことができる。The liquefied FM-200 flow control valve 6 can control the flow of the liquefied FM-200 by opening and closing the pipe 4.
【００７８】前記一端側窒素ガス流通制御弁７ａ及び他
端側窒素ガス流通制御弁７ｂは、前記窒素ガス供給管５
を開閉して窒素ガスの流通を制御することができる。The one end side nitrogen gas flow control valve 7a and the other end side nitrogen gas flow control valve 7b are connected to the nitrogen gas supply pipe 5
Can be opened and closed to control the flow of nitrogen gas.
【００７９】前記レギュレータ８は、前記窒素ガス供給
管５内を流通する窒素ガスの流量を調整することがで
き、前記窒素ガス供給管５を開閉する流量調整弁（図示
せず）と、前記液化ＦＭ−２００貯留槽２内の圧力を検
出することができる圧力計（図示せず）とを備えてな
る。The regulator 8 is capable of adjusting the flow rate of the nitrogen gas flowing through the nitrogen gas supply pipe 5, and a flow control valve (not shown) for opening and closing the nitrogen gas supply pipe 5; A pressure gauge (not shown) capable of detecting the pressure in the FM-200 storage tank 2 is provided.
【００８０】前記消火装置１は、前記液化ＦＭ−２００
流通制御弁６、前記一端側窒素ガス流通制御弁７ａ、前
記他端側窒素ガス流通制御弁７ｂ、前記レギュレータ８
における前記流量調整弁、及び前記圧力計を、制御手段
例えばコンピュータ（図示せず）によって制御すること
ができる。The fire extinguisher 1 comprises the liquefied FM-200
Flow control valve 6, the one end side nitrogen gas flow control valve 7a, the other end side nitrogen gas flow control valve 7b, the regulator 8
Can be controlled by control means such as a computer (not shown).
【００８１】前記液化ＦＭ−２００流通制御弁６、前記
一端側窒素ガス流通制御弁７ａ、及び前記他端側窒素ガ
ス流通制御弁７ｂは、それぞれ、前記コンピュータから
の開信号又は閉信号を入力することによって開閉動作を
行なう常閉バルブを備えてなる。The liquefied FM-200 flow control valve 6, the one end side nitrogen gas flow control valve 7a, and the other end side nitrogen gas flow control valve 7b input an open signal or a close signal from the computer, respectively. A normally-closed valve for opening and closing operation.
【００８２】前記コンピュータにおいては、定常流ピス
トンフロー式で液化ＦＭ−２００を送液する「定常流式
送液モード」、非定常流ピストンフロー式で液化ＦＭ−
２００を送液する「非定常流式送液モード」、及び直前
蓄圧ピストンフロー式で液化ＦＭ−２００を送液する
「直前蓄圧式送液モード」のいずれかの送液モードを選
択することができる。In the computer, a “steady flow type liquid feed mode” in which the liquefied FM-200 is fed by a steady flow piston flow type, and the liquefied FM-200 is fed by an unsteady flow piston flow type.
It is possible to select any one of the liquid supply modes of “unsteady flow type liquid supply mode” for supplying liquid 200 and “preceding pressure storage type liquid supply mode” for supplying liquefied FM-200 by the immediately preceding pressure accumulation piston flow method. it can.
【００８３】前記コンピュータには、液化ＦＭ−２００
貯留槽内を所定圧力に加圧する場合における所定圧力値
を、予め設定することができる。この実施例において
は、前記所定圧力値を、４５ｋｇ／ｃｍ2 に設定した。The computer has a liquefied FM-200
A predetermined pressure value when the inside of the storage tank is pressurized to a predetermined pressure can be set in advance. In this example, the predetermined pressure value was set to 45 kg / cm 2 .
【００８４】前記コンピュータは、前記圧力計によって
検出される液化ＦＭ−２００貯留槽２内の圧力が４５ｋ
ｇ／ｃｍ2 に達したことを検出すると、前記液化ＦＭ−
２００流通制御弁６に開信号を出力することができる。The computer detects that the pressure in the liquefied FM-200 storage tank 2 detected by the pressure gauge is 45 k.
g / cm 2 , the liquefied FM-
An open signal can be output to the 200 flow control valve 6.
【００８５】前記レギュレータ８は、前記一端側窒素ガ
ス流通制御弁７ａ及び前記他端側窒素ガス流通制御弁７
ｂを開いた後、瞬時に液化ＦＭ−２００貯留槽２内の圧
力を４５ｋｇ／ｃｍ2 に加圧することができるように、
予め所定の待機状態に設定しておくことができる。The regulator 8 is provided with one end side nitrogen gas flow control valve 7a and the other end side nitrogen gas flow control valve 7a.
After opening b, the pressure in the liquefied FM-200 storage tank 2 can be instantaneously increased to 45 kg / cm 2 ,
A predetermined standby state can be set in advance.
【００８６】前記コンピュータは、消火現場に設置され
た警報器（図示せず）が出力する警報信号を、この消火
装置を起動する起動信号として入力することができ、こ
の起動信号を入力した後に消火現場に液化ＦＭ−２００
を送液することができる。The computer can input an alarm signal output from an alarm (not shown) installed at a fire extinguishing site as a start signal for starting the fire extinguishing apparatus. Liquefied FM-200 on site
Can be sent.
【００８７】以下、前記消火装置１の動作について説明
する。Hereinafter, the operation of the fire extinguisher 1 will be described.
【００８８】＜定常流式送液モード＞前記コンピュータ
は、起動信号を入力すると、先ず、前記一端側窒素ガス
流通制御弁７ａ及び他端側窒素ガス流通制御弁７ｂにそ
れぞれ開信号を出力する。<Constant Flow Type Liquid Feeding Mode> Upon input of the start signal, the computer first outputs an open signal to the one end side nitrogen gas flow control valve 7a and the other end side nitrogen gas flow control valve 7b, respectively.
【００８９】前記一端側窒素ガス流通制御弁７ａ及び他
端側窒素ガス流通制御弁７ｂが開くと、窒素ガス貯留槽
３から液化ＦＭ−２００貯留槽２への窒素ガスの供給が
開始される。When the one end nitrogen gas flow control valve 7a and the other end nitrogen gas flow control valve 7b are opened, the supply of nitrogen gas from the nitrogen gas storage tank 3 to the liquefied FM-200 storage tank 2 is started.
【００９０】前記コンピュータは、ＦＭ−２００貯留槽
２内の圧力が４５ｋｇ／ｃｍ2 に達したことを判断する
と、前記液化ＦＭ−２００流通制御弁６に開信号を出力
する。When the computer determines that the pressure in the FM-200 storage tank 2 has reached 45 kg / cm 2 , it outputs an open signal to the liquefied FM-200 flow control valve 6.
【００９１】前記液化ＦＭ−２００流通制御弁６が開く
と、消火現場への液化ＦＭ−２００の送液が開始され
る。When the liquefied FM-200 flow control valve 6 is opened, the sending of the liquefied FM-200 to the fire extinguishing site is started.
【００９２】消火現場への液化ＦＭ−２００の送液が開
始されると、前記液化ＦＭ−２００貯留槽２内の圧力が
低下するので、前記コンピュータは、前記液化ＦＭ−２
００貯留槽２内の圧力が４５ｋｇ／ｃｍ2 を保持するよ
うにレギュレータ８に制御信号を出力し、窒素ガス貯留
槽３から液化ＦＭ−２００貯留槽２への窒素ガスの供給
を制御する。When the supply of the liquefied FM-200 to the fire extinguishing site is started, the pressure in the liquefied FM-200 storage tank 2 decreases.
A control signal is output to the regulator 8 so that the pressure in the 00 storage tank 2 is maintained at 45 kg / cm 2, and the supply of nitrogen gas from the nitrogen gas storage tank 3 to the liquefied FM-200 storage tank 2 is controlled.
【００９３】この定常流式送液モードにおいては、一定
の加圧圧力で液化ＦＭ−２００を消火現場に送液するこ
とができる。In the steady flow type liquid sending mode, the liquefied FM-200 can be sent to the fire extinguishing site at a constant pressurized pressure.
【００９４】＜非定常流式送液モード＞非定常流式送液
モードにおいては、前記レギュレータ８における流量調
整弁は、全開の状態を保持したまま動作せず、前記窒素
ガス供給管５内を流通する窒素ガスの流量を調整しな
い。この非定常流式送液モードにおいては前記流量調整
弁を備えたレギュレータを省略することができる。<Unsteady flow type liquid feed mode> In the unsteady flow type liquid feed mode, the flow control valve in the regulator 8 does not operate while maintaining the fully open state, and the inside of the nitrogen gas supply pipe 5 is not operated. Do not adjust the flow rate of flowing nitrogen gas. In the unsteady flow type liquid feeding mode, the regulator having the flow rate adjusting valve can be omitted.
【００９５】−非定常流式第１の態様− 前記コンピュータは、起動信号を入力すると、先ず、前
記一端側窒素ガス流通制御弁７ａ及び他端側窒素ガス流
通制御弁７ｂにそれぞれ開信号を出力する。-First Aspect of Unsteady Flow Type- Upon receiving a start signal, the computer first outputs an open signal to the one end side nitrogen gas flow control valve 7a and the other end side nitrogen gas flow control valve 7b, respectively. I do.
【００９６】前記一端側窒素ガス流通制御弁７ａ及び他
端側窒素ガス流通制御弁７ｂが開くと、窒素ガス貯留槽
３から液化ＦＭ−２００貯留槽２への窒素ガスの供給が
開始される。When the one end nitrogen gas flow control valve 7a and the other end nitrogen gas flow control valve 7b are opened, supply of nitrogen gas from the nitrogen gas storage tank 3 to the liquefied FM-200 storage tank 2 is started.
【００９７】前記コンピュータは、ＦＭ−２００貯留槽
２内の圧力が４５ｋｇ／ｃｍ2 に達したことを判断する
と、前記液化ＦＭ−２００流通制御弁６に開信号を出力
する。When the computer determines that the pressure in the FM-200 storage tank 2 has reached 45 kg / cm 2 , it outputs an open signal to the liquefied FM-200 flow control valve 6.
【００９８】消火現場への液化ＦＭ−２００の送液が開
始されると、前記液化ＦＭ−２００貯留槽２内の圧力が
低下し、送液速度も低下するが、前記コンピュータは、
前記レギュレータ８に制御信号を出力せず、窒素ガス貯
留槽３から液化ＦＭ−２００貯留槽２への窒素ガスの供
給の制御は積極的には行われない。When the supply of the liquefied FM-200 to the fire extinguishing site is started, the pressure in the liquefied FM-200 storage tank 2 decreases and the liquid sending speed also decreases.
No control signal is output to the regulator 8, and the supply of nitrogen gas from the nitrogen gas storage tank 3 to the liquefied FM-200 storage tank 2 is not actively controlled.
【００９９】−非定常流式第２の態様− 前記コンピュータは、起動信号を入力すると、先ず、前
記液化ＦＭ−２００流通制御弁６、一端側窒素ガス流通
制御弁７ａ、及び他端側窒素ガス流通制御弁７ｂにそれ
ぞれ開信号を出力する。-Unsteady flow type second embodiment-When the computer inputs a start signal, first, the liquefied FM-200 flow control valve 6, one end side nitrogen gas flow control valve 7a, and the other end side nitrogen gas An open signal is output to each of the flow control valves 7b.
【０１００】前記液化ＦＭ−２００流通制御弁６と、一
端側窒素ガス流通制御弁７ａと、他端側窒素ガス流通制
御弁７ｂとを同時に開くことにより、窒素ガス貯留槽３
から液化ＦＭ−２００貯留槽２への窒素ガスの供給と、
液化ＦＭ−２００貯留槽２から消火現場への液化ＦＭ−
２００の送液とが同時に開始される。By simultaneously opening the liquefied FM-200 flow control valve 6, one end side nitrogen gas flow control valve 7a, and the other end side nitrogen gas flow control valve 7b, the nitrogen gas storage tank 3
Supply of nitrogen gas to the liquefied FM-200 storage tank 2 from
Liquefied FM-200 from storage tank 2 to fire extinguishing site
The liquid supply of 200 is started at the same time.
【０１０１】前記液化ＦＭ−２００流通制御弁６と、一
端側窒素ガス流通制御弁７ａと、他端側窒素ガス流通制
御弁７ｂとを同時に開いた後においては、前記液化ＦＭ
−２００貯留槽２内の圧力が低下し、送液速度も低下す
るが、前記コンピュータは、前記レギュレータ８に制御
信号を出力せず、窒素ガス貯留槽３から液化ＦＭ−２０
０貯留槽２への窒素ガスの供給の制御は積極的には行わ
れない。After the liquefied FM-200 flow control valve 6, the one end side nitrogen gas flow control valve 7a, and the other end side nitrogen gas flow control valve 7b are simultaneously opened, the liquefied FM-200
Although the pressure in the -200 storage tank 2 decreases and the liquid sending speed also decreases, the computer does not output a control signal to the regulator 8 and the liquefied FM-20 is output from the nitrogen gas storage tank 3.
The control of the supply of the nitrogen gas to the zero storage tank 2 is not actively performed.
【０１０２】＜直前蓄圧式送液モード＞直前蓄圧式送液
モードにおいては、前記レギュレータ８における流量調
整弁は、全開の状態を保持したまま動作せず、前記窒素
ガス供給管５内を流通する窒素ガスの流量を調整しな
い。この直前蓄圧式送液モードにおいては前記流量調整
弁を備えたレギュレータを省略することができる。<Previous Accumulation Type Liquid Feeding Mode> In the immediately preceding pressure accumulation type liquid feeding mode, the flow regulating valve in the regulator 8 does not operate while maintaining the fully open state, and flows through the nitrogen gas supply pipe 5. Do not adjust the flow rate of nitrogen gas. In this immediately preceding pressure-accumulation type liquid sending mode, the regulator having the flow rate adjusting valve can be omitted.
【０１０３】前記コンピュータは、起動信号を入力する
と、先ず、前記一端側窒素ガス流通制御弁７ａ及び他端
側窒素ガス流通制御弁７ｂにそれぞれ開信号を出力す
る。Upon input of the start signal, the computer first outputs an open signal to the one end side nitrogen gas flow control valve 7a and the other end side nitrogen gas flow control valve 7b.
【０１０４】前記一端側窒素ガス流通制御弁７ａ及び他
端側窒素ガス流通制御弁７ｂが開くと、窒素ガス貯留槽
３から液化ＦＭ−２００貯留槽２への窒素ガスの供給が
開始される。When the one end side nitrogen gas flow control valve 7a and the other end side nitrogen gas flow control valve 7b are opened, supply of nitrogen gas from the nitrogen gas storage tank 3 to the liquefied FM-200 storage tank 2 is started.
【０１０５】前記コンピュータは、ＦＭ−２００貯留槽
２内の圧力が４５ｋｇ／ｃｍ2 に達したことを検出する
と、前記一端側窒素ガス流通制御弁７ａに閉信号を出力
し、前記窒素ガス貯留槽３から液化ＦＭ−２００貯留槽
２への窒素ガスの供給が停止される。When the computer detects that the pressure in the FM-200 storage tank 2 has reached 45 kg / cm 2 , it outputs a close signal to the one end side nitrogen gas flow control valve 7a, and The supply of the nitrogen gas from 3 to the liquefied FM-200 storage tank 2 is stopped.
【０１０６】前記コンピュータは、前記窒素ガス貯留槽
３から液化ＦＭ−２００貯留槽２への窒素ガスの供給を
停止した後に、前記液化ＦＭ−２００流通制御弁６に開
信号を出力する。After the supply of nitrogen gas from the nitrogen gas storage tank 3 to the liquefied FM-200 storage tank 2 is stopped, the computer outputs an open signal to the liquefied FM-200 flow control valve 6.
【０１０７】消火現場への液化ＦＭ−２００の送液が開
始されると、前記液化ＦＭ−２００貯留槽２内の圧力が
低下し、送液速度も低下する。When the supply of the liquefied FM-200 to the fire extinguishing site is started, the pressure in the liquefied FM-200 storage tank 2 decreases, and the liquid sending speed also decreases.
【０１０８】前記消火装置１は、消火現場において充分
なＦＭ−２００ガスの放出量を確保することができるよ
うに、前記液化ＦＭ−２００貯留槽２の容量、液化ＦＭ
−２００の貯留量、窒素ガス貯留槽３の容量、窒素ガス
の貯留量、及び配管等を予め設計してなるので、前記液
化ＦＭ−２００貯留槽２内の圧力が低下し、液化ＦＭ−
２００の送液速度が低下しても、実用上全く不具合を生
じることがない。The fire extinguisher 1 has a capacity of the liquefied FM-200 storage tank 2 and a liquefied FM so that a sufficient amount of FM-200 gas can be released at the fire extinguishing site.
Since the storage amount of −200, the capacity of the nitrogen gas storage tank 3, the storage amount of nitrogen gas, the piping, and the like are designed in advance, the pressure in the liquefied FM-200 storage tank 2 decreases, and the liquefied FM−
Even if the liquid sending speed of 200 is reduced, practically no problem occurs.
【０１０９】（実施例１）液化消火ガス貯留槽として容
量８２．５リットルのボンベを５本、及び、液化消火ガ
スとして液化ＦＭ−２００を８２ｋｇ×５＝４１０ｋｇ
採用し、液化ＦＭ−２００を４２ｋｇ／ｃｍ2 の加圧圧
力の窒素ガスで、主配管口径が１００Ａである配管中に
１０秒間送液した場合における送液可能距離を求め、表
１に示す。(Example 1) Five cylinders having a capacity of 82.5 liters as a liquefied fire extinguishing gas storage tank, and 82 kg x 5 = 410 kg of liquefied FM-200 as a liquefied fire extinguishing gas
The liquid transferable distance when the liquefied FM-200 was fed for 10 seconds through a pipe having a main pipe diameter of 100 A with nitrogen gas at a pressurized pressure of 42 kg / cm 2 was determined.
【０１１０】（実施例２）実施例１において、主配管口
径が８０Ａである配管中に送液した以外は、実施例１と
同様に送液可能距離を求め、表１に示す。(Example 2) The liquid transferable distance was determined in the same manner as in Example 1 except that the liquid was fed into a pipe having a main pipe diameter of 80A.
【０１１１】（実施例３）実施例１において、主配管口
径が６５Ａである配管中に送液した以外は、実施例１と
同様に送液可能距離を求め、表１に示す。(Example 3) The liquid transferable distance was determined in the same manner as in Example 1 except that the liquid was fed into a pipe having a main pipe diameter of 65A.
【０１１２】（比較例１）実施例１における液化消火ガ
ス貯留槽及び液化消火ガスに代えて、容量８２．５リッ
トルのボンベに液化消火ガスとして８２ｋｇの液化ＦＭ
−２００を４２ｋｇ／ｃｍ2 の加圧圧力の窒素ガスで蓄
圧した蓄圧式ＦＭ−２００タンク５本を採用以外は、実
施例１と同様に送液可能距離を求め、表１に示す。(Comparative Example 1) In place of the liquefied fire extinguishing gas storage tank and the liquefied fire extinguishing gas in Example 1, 82 kg of liquefied FM was used as a liquefied fire extinguishing gas in a cylinder having a capacity of 82.5 liters.
The liquid transferable distance was determined in the same manner as in Example 1 except that five pressure-accumulation type FM-200 tanks in which -200 was accumulated with nitrogen gas having a pressure of 42 kg / cm 2 were obtained.
【０１１３】[0113]
【表１】 [Table 1]
【０１１４】[0114]
【発明の効果】本発明の消火装置においては、消火現場
において充分な消火ガスの放出量を確保することができ
るように、予め前記液化消火ガス貯留槽の容量、液化消
火ガスの貯留量、加圧用ガス貯留槽の容量、加圧用ガス
の貯留量、配管、及び加圧用ガス供給管等を設計するこ
とができ、液化消火ガス中に加圧用ガスが溶け込む量を
実用上不具合を生じない量に抑制することができ、送液
中に液化消火ガスが泡立つことに起因する実用上の不具
合を生じないので、液化消火ガスの送液可能距離を実用
上所望の距離に延ばすことができ、従来からの諸問題、
例えば、溶存窒素ガスが湧き出すことにより液化消火ガ
スが泡立ってしまい、この液化消火ガスを送液すること
ができないという問題、液化消火ガスの送液可能距離が
蓄圧式消火剤タンクにおいて予め圧入される窒素ガスの
圧力に左右されるという問題、配管の長さを送液可能距
離の範囲内の長さに制限しなければならないという問
題、消火現場が複数箇所である場合に送液可能距離がさ
らに短くなってしまうという問題等を解消することがで
き、液化消火ガスを消火現場に確実に送液することがで
きる。In the fire extinguisher according to the present invention, the capacity of the liquefied fire extinguishing gas storage tank, the amount of the liquefied fire extinguishing gas stored, and the amount of fire extinguishing gas are controlled so that a sufficient amount of fire extinguishing gas can be released at the fire extinguishing site. The capacity of the pressurized gas storage tank, the amount of pressurized gas stored, the piping, the pressurized gas supply pipe, etc. can be designed, and the amount of pressurized gas dissolved in the liquefied fire extinguishing gas is set to an amount that does not cause practical problems. It is possible to suppress the occurrence of practical problems caused by bubbling of the liquefied fire-extinguishing gas during liquid sending, so that the liquefiable fire-extinguishing gas can be extended to a practically desired distance. Problems,
For example, the liquefied fire extinguishing gas bubbles due to the release of dissolved nitrogen gas, which makes it impossible to send the liquefied fire extinguishing gas. The problem is that it depends on the pressure of nitrogen gas, the length of the piping must be limited to the range of the liquid transfer distance, and the liquid transfer distance is limited when there are multiple fire extinguishing sites. The problem of further shortening can be solved, and the liquefied fire extinguishing gas can be reliably sent to the fire extinguishing site.
【０１１５】さらに、従来の消火装置における送液可能
距離の２倍を超える距離を隔てて位置する複数の消火現
場に液化消火ガスを送液する場合においても、本発明の
消火装置における配管には、複数に分岐する分岐配管、
前記分岐配管の分岐部において液化消火ガスの流路を制
御する分岐流路制御弁、例えば、流路切替弁等を組み合
わせることができ、消火現場を選択して各消火現場に液
化消火ガスを振り分けることができるので、複数の消火
現場毎にそれぞれ蓄圧式消火剤タンク及びその保護区画
を設けなける必要がなく、省スペース化を実現すること
ができ、液化消火ガスの貯蔵量を削減することができる
ので、省資源化をも実現することができる。Further, even when liquefied fire-extinguishing gas is sent to a plurality of fire-extinguishing sites located at a distance more than twice as long as the liquid-supplyable distance in the conventional fire-extinguishing apparatus, the piping in the fire-extinguishing apparatus of the present invention is not required. , Branch piping that branches into multiple,
A branch flow control valve for controlling the flow path of the liquefied fire extinguishing gas at the branch portion of the branch pipe, for example, a flow path switching valve or the like can be combined, and the fire extinguishing site is selected and the liquefied fire extinguishing gas is distributed to each fire extinguishing site. Therefore, it is not necessary to provide a pressure-accumulation type fire extinguishing agent tank and its protection compartment at each of a plurality of fire extinguishing sites, so that space can be saved and the storage amount of liquefied fire extinguishing gas can be reduced. Therefore, resource saving can be realized.
【図１】図１は、本発明の消火装置の一実施例を示す概
略図である。FIG. 1 is a schematic diagram showing one embodiment of a fire extinguisher according to the present invention.
１・・・消火装置、２・・・液化ＦＭ−２００貯留槽、
２ａ・・・底面、２ｂ・・・上面、３・・・窒素ガス貯
留槽、４・・・配管、４ａ・・・一端側開口部、５・・
・窒素ガス供給管、５ａ・・・一端、５ｂ・・・他端、
５ｃ・・・他端側開口部、６・・・液化ＦＭ−２００流
通制御弁、７ａ・・・一端側窒素ガス流通制御弁、７ｂ
・・・他端側窒素ガス流通制御弁、８・・・レギュレー
タ。1 ... fire extinguisher, 2 ... liquefied FM-200 storage tank,
2a: bottom surface, 2b: top surface, 3 ... nitrogen gas storage tank, 4 ... piping, 4a ... one end opening, 5 ...
-Nitrogen gas supply pipe, 5a ... one end, 5b ... other end,
5c: Opening on the other end side, 6: Liquefied FM-200 flow control valve, 7a: Nitrogen gas flow control valve on one end, 7b
... the other end side nitrogen gas flow control valve, 8 ... the regulator.
Claims (1)
留されている液化消火ガスを、加圧用ガス貯留槽内に加
圧状態にある加圧ガスを前記液化消火ガス貯留槽内に圧
入することにより、前記液化消火ガス貯留槽に結合され
た配管内を液化消火ガスが一相流となって消火現場に送
液されるようにしてなることを特徴とする消火装置。At the time of fire extinguishing, a liquefied fire extinguishing gas stored in a liquefied fire extinguishing gas storage tank is supplied with a pressurized gas in a pressurized state in a pressurized gas storage tank into the liquefied fire extinguishing gas storage tank. A fire extinguisher, wherein the liquefied fire-extinguishing gas is sent to the fire-extinguishing site as a one-phase flow in a pipe connected to the liquefied fire-extinguishing gas storage tank by press-fitting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10281516A JP2000107316A (en) | 1998-10-02 | 1998-10-02 | Extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10281516A JP2000107316A (en) | 1998-10-02 | 1998-10-02 | Extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2000107316A true JP2000107316A (en) | 2000-04-18 |
Family
ID=17640279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10281516A Pending JP2000107316A (en) | 1998-10-02 | 1998-10-02 | Extinguishing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2000107316A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003079758A (en) * | 2001-09-07 | 2003-03-18 | Fenwall Controls Of Japan Ltd | Fire-fighting device |
| JP2012016415A (en) * | 2010-07-06 | 2012-01-26 | Air Water Safety Service Inc | Fire extinguisher |
| JP2014004165A (en) * | 2012-06-25 | 2014-01-16 | Air Water Safety Service Inc | Fire extinguishing facility |
-
1998
- 1998-10-02 JP JP10281516A patent/JP2000107316A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003079758A (en) * | 2001-09-07 | 2003-03-18 | Fenwall Controls Of Japan Ltd | Fire-fighting device |
| JP2012016415A (en) * | 2010-07-06 | 2012-01-26 | Air Water Safety Service Inc | Fire extinguisher |
| JP2014004165A (en) * | 2012-06-25 | 2014-01-16 | Air Water Safety Service Inc | Fire extinguishing facility |
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