JP2002291925A - Foam fire-extinguishing system - Google Patents
Foam fire-extinguishing systemInfo
- Publication number
- JP2002291925A JP2002291925A JP2001099817A JP2001099817A JP2002291925A JP 2002291925 A JP2002291925 A JP 2002291925A JP 2001099817 A JP2001099817 A JP 2001099817A JP 2001099817 A JP2001099817 A JP 2001099817A JP 2002291925 A JP2002291925 A JP 2002291925A
- Authority
- JP
- Japan
- Prior art keywords
- foam
- extinguishing
- fire
- tank
- aqueous solution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
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】この発明は、消火用水と泡消
火薬剤とを混合して放出する泡消火設備に関するもので
ある。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam extinguishing system for mixing and discharging fire extinguishing water and foam.
【０００２】[0002]
【従来の技術】図２は従来の泡消火設備を示す説明図で
ある。図２において、１は消火用水１ａを貯蓄する受水
槽である。２は受水槽１の消火用水１ａを加圧して流出
させる消火ポンプである。３は加圧された消火用水１ａ
が流通する一次側配管である。2. Description of the Related Art FIG. 2 is an explanatory view showing a conventional foam fire extinguishing system. In FIG. 2, reference numeral 1 denotes a water receiving tank for storing fire extinguishing water 1a. Reference numeral 2 denotes a fire pump for pressurizing the fire-extinguishing water 1a in the water receiving tank 1 to flow out. 3 is pressurized fire extinguishing water 1a
Is the primary side piping that circulates.
【０００３】また、４は泡消火薬剤４ａが貯蓄された泡
消火薬剤タンクである。泡消火薬剤タンク４は、ダイア
フラム４ｂによって、内室と外室に分離されている。そ
して、泡消火薬剤４ａは、内室に貯蓄されている。一
方、外室には、一次側配管３から分岐した分岐配管８が
接続され、消火時には、消火ポンプ２によって加圧され
た消火用水１ａが所定の圧力にてこの外室に流入する。
内室に貯蓄された泡消火薬剤４ａは、この圧力によって
押されて泡消火薬剤供給管９に所定の圧力で流出する。[0003] A foam extinguishing agent tank 4 stores a foam extinguishing agent 4a. The foam tank 4 is separated into an inner chamber and an outer chamber by a diaphragm 4b. The foam 4a is stored in the inner chamber. On the other hand, a branch pipe 8 branched from the primary pipe 3 is connected to the outer chamber, and at the time of fire extinguishing, the fire extinguishing water 1a pressurized by the fire pump 2 flows into the outer chamber at a predetermined pressure.
The foam 4 a stored in the inner chamber is pushed by this pressure and flows out to the foam supply pipe 9 at a predetermined pressure.
【０００４】また、５は一次側配管３の端部に設けられ
たベンチュリー構造などの混合器である。混合器５に
は、泡消火薬剤供給管９が接続され、消火用水１ａと泡
消火薬剤４ａとを所定の割合で混合し、泡消火用液（水
溶液）を生成する。６は混合器５の二次側に連結され、
生成された泡消火用液が流通する二次側配管である。二
次側配管６の先端には、例えば、スプリンクラーヘッド
等の噴射手段が設けられている。[0004] Reference numeral 5 denotes a mixer such as a venturi structure provided at the end of the primary pipe 3. A foam extinguishing agent supply pipe 9 is connected to the mixer 5, and mixes the fire extinguishing water 1a and the foam extinguishing agent 4a at a predetermined ratio to generate a foam extinguishing liquid (aqueous solution). 6 is connected to the secondary side of the mixer 5,
The secondary pipe through which the generated foam fire extinguishing liquid flows. An injection means such as a sprinkler head is provided at the tip of the secondary pipe 6.
【０００５】さらに、２１は一次側配管３の端部に接続
された圧力空気槽である。ＰＳ３，ＰＳ４は圧力空気槽
２１に取り付けられた圧力スイッチである。ＰＳ４はＰ
Ｓ３よりも低圧で作動するように設定されている。２２
は圧力空気槽２１に消火用水１ａを供給する小型の補助
ポンプである。圧力空気槽２１には、閉じ込めたれた空
気と該空気の下側に充填された消火用水１ａとが収納さ
れている。圧力空気槽２１は、空気の圧力で一次側配管
３内に所定の圧力で消火用水１ａを流出する。そして、
漏洩等により一次側配管３内が所定の圧力以下になる
と、圧力スイッチＰＳ３がＯＮして図示しない補助ポン
プ起動盤を介して補助ポンプ２２が作動し、圧力空気槽
２１に圧力スイッチＰＳ３がＯＦＦする所定の圧力まで
消火用水１ａを充填する。[0005] Further, reference numeral 21 denotes a pressure air tank connected to the end of the primary pipe 3. PS3 and PS4 are pressure switches attached to the pressure air tank 21. PS4 is P
It is set to operate at a lower pressure than S3. 22
Is a small auxiliary pump for supplying the fire extinguishing water 1a to the pressurized air tank 21. The pressurized air tank 21 contains the trapped air and the fire extinguishing water 1a filled under the air. The pressurized air tank 21 discharges the fire extinguishing water 1a at a predetermined pressure into the primary pipe 3 by the pressure of air. And
When the pressure in the primary side pipe 3 becomes lower than a predetermined pressure due to leakage or the like, the pressure switch PS3 is turned on, the auxiliary pump 22 is operated via an auxiliary pump starting board (not shown), and the pressure switch PS3 in the pressure air tank 21 is turned off. The fire extinguishing water 1a is filled to a predetermined pressure.
【０００６】さらにまた、１２は消火ポンプ２と補助ポ
ンプ２２に呼水１２ａを供給する呼水槽である。さら
に、１７は配管の所定の位置に設けられた複数の仕切弁
及び逆止弁である。１８は分岐配管に設けられたバルブ
である。Reference numeral 12 denotes a priming tank for supplying priming water 12a to the fire pump 2 and the auxiliary pump 22. Further, reference numeral 17 denotes a plurality of gate valves and check valves provided at predetermined positions of the pipe. Reference numeral 18 denotes a valve provided on the branch pipe.
【０００７】このような構成の泡消火設備においては、
消火時には、図示しない例えばスプリンクラーヘッドが
火災熱により開放して、二次側配管６の泡消火用液が圧
力空気槽２１の空気圧により放出される。この時圧力空
気槽２１の圧力が急激に下がって圧力スイッチＰＳ３及
びＰＳ４がＯＮする。ＰＳ４のＯＮにより図示しないポ
ンプ起動盤を介して消火ポンプ２が作動し、一次側配管
３に消火用水１ａを加圧して流出する。次いで、混合器
５は、消火用水１ａと泡消火薬剤４ａとを所定の割合で
混合し、泡消火用液を生成する。そして、生成された泡
消火用液は、スプリンクラーヘッド等の噴射手段から噴
射され火災を消火する。In such a foam fire extinguishing system,
At the time of fire extinguishing, for example, a sprinkler head (not shown) is opened by fire heat, and the foam fire extinguishing liquid in the secondary pipe 6 is released by the air pressure in the pressurized air tank 21. At this time, the pressure in the pressure air tank 21 drops sharply, and the pressure switches PS3 and PS4 are turned on. When the PS 4 is turned on, the fire-extinguishing pump 2 operates via a pump starter (not shown), and pressurizes and flows out the fire-extinguishing water 1 a into the primary pipe 3. Next, the mixer 5 mixes the fire extinguishing water 1a and the foam fire extinguishing agent 4a at a predetermined ratio to generate a foam fire extinguishing liquid. Then, the generated foam fire extinguishing liquid is injected from an injection means such as a sprinkler head to extinguish the fire.
【０００８】図３は従来の泡消火設備の他の例を示す説
明図である。上述の図２の従来例においては、泡消火薬
剤タンク４の外室には、一次側配管３から分岐した分岐
配管８が接続されている。そのため、消火ポンプ２が作
動していない場合でも、圧力空気槽２１からの圧力が働
く。一方、図３の従来例においては、泡消火薬剤タンク
４の外室に接続された分岐配管１９は、消火ポンプ２か
ら延びている。したがって、図３の従来例においては、
消火ポンプ２が作動しないと泡消火薬剤タンク４に圧力
が働かない。FIG. 3 is an explanatory view showing another example of the conventional foam fire extinguishing equipment. In the conventional example of FIG. 2 described above, a branch pipe 8 branched from the primary pipe 3 is connected to the outer chamber of the foam fire-extinguishing chemical tank 4. Therefore, even when the fire pump 2 is not operating, the pressure from the pressurized air tank 21 works. On the other hand, in the conventional example of FIG. 3, the branch pipe 19 connected to the outer chamber of the foam fire-extinguishing chemical tank 4 extends from the fire-extinguishing pump 2. Therefore, in the conventional example of FIG.
If the fire pump 2 does not operate, no pressure acts on the foam tank 4.
【０００９】[0009]
【発明が解決しようとする課題】このような構成の従来
の泡消火設備に関しては、一般にスプリンクラーヘッド
等の配管、すなわち二次側配管６の継手部分などから泡
消火用液（水溶液）が少しづつ漏洩する。そして例え
ば、図２の泡消火設備においては、このような泡消火用
液の漏洩時には減圧するので圧力スイッチＰＳ３がＯＮ
し、補助ポンプ２２が作動して一次側配管３及び二次側
配管６内の監視圧を一定に保つ。しかし、このとき混合
器５に流れる消火用水１ａの流量は、非常に少ないもの
であり、混合器５で泡消火薬剤４ａを泡消火薬剤タンク
４より吸収して混合可能な規定流量に達するものでな
い。そのため、消火用水１ａに泡消火薬剤４ａが混合さ
れることがなく、混合器５の二次側に接続された二次側
配管６内の泡消火用液（水溶液）の濃度は、消火用水１
ａが供給されるのみで、泡消火薬剤４ａ供給されないた
め、時間経過と共に薄くなり、規定濃度から下がってし
まう問題があった。With respect to the conventional foam fire extinguishing equipment having such a configuration, generally, the foam fire extinguishing liquid (aqueous solution) is gradually and gradually supplied from a pipe such as a sprinkler head, that is, a joint portion of the secondary pipe 6 and the like. Leak. For example, in the foam fire extinguishing equipment shown in FIG. 2, when the foam fire extinguishing liquid leaks, the pressure is reduced, so the pressure switch PS3 is turned on.
Then, the auxiliary pump 22 operates to keep the monitoring pressure in the primary pipe 3 and the secondary pipe 6 constant. However, at this time, the flow rate of the fire extinguishing water 1a flowing to the mixer 5 is extremely small, and does not reach the specified flow rate at which the foam extinguishing agent 4a is absorbed from the foam extinguishing agent tank 4 by the mixer 5 and can be mixed. . Therefore, the foam for extinguishing fire 4a is not mixed with the fire extinguishing water 1a, and the concentration of the foam for extinguishing fire (aqueous solution) in the secondary pipe 6 connected to the secondary side of the mixer 5 is reduced to 1%.
Since only the “a” is supplied and the foam extinguishing agent 4a is not supplied, there is a problem in that the concentration becomes thinner with the lapse of time and lowers from the specified concentration.
【００１０】また、図３に示す泡消火設備においては、
同じようにスプリンクラー配管からの漏洩時には補助ポ
ンプ２２が作動して監視圧を一定上に保つが、補助ポン
プ２２は、泡消火薬剤タンク４を加圧しない。そのた
め、混合器５で泡消火薬剤４ａが混合されず、二次側配
管６には消火用水１ａのみが流入し、混合器５の二次側
の濃度が時間経過と共に薄くなる問題があった。[0010] In the foam fire extinguishing equipment shown in FIG.
Similarly, at the time of leakage from the sprinkler piping, the auxiliary pump 22 operates to keep the monitoring pressure constant, but the auxiliary pump 22 does not pressurize the foam tank 4. Therefore, there was a problem that the foam 5 was not mixed in the mixer 5 and only the fire extinguishing water 1a flowed into the secondary pipe 6, and the concentration of the secondary side of the mixer 5 became thinner with time.
【００１１】さらには、図２及び図３の泡消火設備にお
いて、設備上、混合器５から補助ポンプ２２や圧力空気
槽２１までの水配管ボリューム（容積）が大きくなるこ
とがあり、混合器５の前後の液は通水状態であるため、
設備配管の落差の影響にもよるが、放置時間によっては
混合器５の二次側の水溶液と置換し、その濃度を薄くす
る傾向がつよいことがあるので問題であった。Further, in the foam fire extinguishing equipment shown in FIGS. 2 and 3, the volume of the water pipe from the mixer 5 to the auxiliary pump 22 or the pressurized air tank 21 may be increased due to the equipment. Because the liquid before and after is in a flowing state,
Although it depends on the effect of the head of the equipment pipe, there is a problem that the aqueous solution on the secondary side of the mixer 5 tends to be replaced and the concentration thereof may be reduced depending on the leaving time.
【００１２】この発明は、上述のような課題を解決する
ためになされたもので、漏洩における混合器二次側の濃
度低下を抑制することができる泡消火設備を得ることを
目的とする。SUMMARY OF THE INVENTION The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a foam fire extinguishing system capable of suppressing a decrease in concentration on the secondary side of a mixer due to leakage.
【００１３】[0013]
【課題を解決するための手段】この発明に係る泡消火設
備は、受水槽からの消火用水を加圧して流出する消火ポ
ンプと、加圧された消火用水が流通する一次側配管と、
泡消火薬剤が貯蓄された泡消火薬剤タンクと、一次側配
管の端部に設けられ消火用水と泡消火薬剤とを所定の割
合で混合し、泡消火用液を生成する混合器と、混合器の
二次側に連結され、泡消火用液が流通する二次側配管
と、二次側配管に接続され、内部に泡消火薬剤の水溶液
を貯液し、二次側配管内に水溶液を供給する水溶液供給
手段とを備えている。A foam fire extinguishing system according to the present invention comprises: a fire extinguishing pump for pressurizing and extinguishing fire extinguishing water from a water receiving tank; a primary pipe through which the pressurized fire extinguishing water flows;
A foam extinguishing agent tank in which a foam extinguishing agent is stored, a mixer provided at an end of the primary side pipe and mixing a fire extinguishing water and a foam extinguishing agent at a predetermined ratio to produce a foam extinguishing liquid, and a mixer The secondary side pipe is connected to the secondary side of the tank, and the secondary side pipe through which the foam for fire extinguishing flows, and connected to the secondary side pipe, stores the aqueous solution of the foam fire-extinguishing agent inside, and supplies the aqueous solution into the secondary side pipe. And an aqueous solution supply means.
【００１４】また、水溶液供給手段は、水溶液を圧縮空
気にて流出させる圧力空気槽である。The aqueous solution supply means is a pressurized air tank for discharging the aqueous solution with compressed air.
【００１５】さらに、圧力空気槽には、水溶液が貯液さ
れた呼水槽が接続され、水溶液は、圧力空気槽と呼水槽
との間に設けられた補助ポンプによって圧力空気槽に加
圧されて充填される。Further, a priming tank storing an aqueous solution is connected to the pressurized air tank, and the aqueous solution is pressurized by the auxiliary pump provided between the pressurized air tank and the priming tank. Will be filled.
【００１６】[0016]
【発明の実施の形態】実施の形態１．図１は本発明の泡
消火設備を示す説明図である。図１において、受水槽１
には消火用水１ａが貯蓄されている。消火ポンプ２は、
受水槽１からの消火用水１ａを加圧して一次側配管３に
流出する。一方、泡消火薬剤タンク４には、泡消火薬剤
４ａが貯蓄されている。DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is an explanatory view showing the foam fire extinguishing equipment of the present invention. In FIG. 1, a water receiving tank 1
Stores fire extinguishing water 1a. Fire pump 2
The fire extinguishing water 1 a from the water receiving tank 1 is pressurized and flows out to the primary side pipe 3. On the other hand, the foam 4 is stored in the foam 4.
【００１７】泡消火薬剤タンク４は、ダイアフラム４ｂ
によって、内室と外室に分離されている。そして、泡消
火薬剤４ａは、内室に貯蓄されている。一方、外室に
は、一次側配管３から分岐した分岐配管８が接続され、
消火時には、消火ポンプ２によって加圧された消火用水
１ａが所定の圧力にて流入する。内室に貯蓄された泡消
火薬剤４ａは、この圧力によって、泡消火薬剤供給管９
に所定の圧力で流出する。The foam tank 4 is provided with a diaphragm 4b.
Is separated into an inner chamber and an outer chamber. The foam 4a is stored in the inner chamber. On the other hand, a branch pipe 8 branched from the primary pipe 3 is connected to the outer chamber,
At the time of fire extinguishing, the fire extinguishing water 1a pressurized by the fire extinguishing pump 2 flows in at a predetermined pressure. The foam extinguishing agent 4a stored in the inner chamber is moved by the foam extinguishing agent supply pipe 9 by this pressure.
At a predetermined pressure.
【００１８】一次側配管３の消火ポンプ２と反対側の端
部には、混合器５が接続されている。混合器５は内部に
比例混合機構例えばベンチュリー管を備え、このベンチ
ュリー管には、泡消火薬剤タンク４から延びる泡消火薬
剤供給管９が接続されている。混合器５の二次側には、
二次側配管６が連結されている。混合器５は、ベンチュ
リー管にて、消火用水１ａと泡消火薬剤４ａとを所定の
割合で混合し、泡消火用液（水溶液７ａ）を生成する。
そして、生成された泡消火用液は二次側配管６を流通
し、二次側配管６の先端に設けられた例えばスプリンク
ラーヘッド等の噴射手段から噴射される。A mixer 5 is connected to an end of the primary pipe 3 opposite to the fire pump 2. The mixer 5 has a proportional mixing mechanism such as a Venturi tube inside, and a foam extinguishing agent supply pipe 9 extending from the foam extinguishing agent tank 4 is connected to the venturi tube. On the secondary side of the mixer 5,
The secondary pipe 6 is connected. The mixer 5 mixes the fire extinguishing water 1a and the foam fire extinguishing agent 4a at a predetermined ratio in a Venturi tube to generate a foam fire extinguishing liquid (aqueous solution 7a).
Then, the generated foam fire-extinguishing liquid flows through the secondary pipe 6 and is injected from an injection unit such as a sprinkler head provided at the tip of the secondary pipe 6.
【００１９】また、二次側配管６には、水溶液供給手段
としての圧力空気槽７が接続されている。ＰＳ１，ＰＳ
２は圧力空気槽７に取り付けられた圧力スイッチであ
る。ＰＳ２はＰＳ１よりも低圧で作動するように設定さ
れており、火災時、スプリンクラーヘッド等が放水した
際の減圧を捕えてＯＮし、図示しないポンプ起動盤を介
して消火ポンプを作動させる圧力スイッチである。圧力
空気槽７は、内部に水溶液７ａを貯液し、内部に圧縮さ
れた空気の圧力により二次側配管６内を所定の圧力の水
溶液７ａで満たしている。水溶液７ａは、混合器５によ
って消火用水１ａと泡消火薬剤４ａとが混合されたもの
と同じである。The secondary pipe 6 is connected to a pressurized air tank 7 as an aqueous solution supply means. PS1, PS
Reference numeral 2 denotes a pressure switch attached to the pressure air tank 7. PS2 is set to operate at a lower pressure than PS1, and in the event of a fire, a pressure switch that activates the fire extinguishing pump via a pump starting board (not shown) by turning on by catching the reduced pressure when the sprinkler head etc. discharges water. is there. The pressurized air tank 7 stores an aqueous solution 7a therein, and fills the inside of the secondary pipe 6 with the aqueous solution 7a having a predetermined pressure by the pressure of the compressed air. The aqueous solution 7a is the same as the water in which the fire extinguishing water 1a and the foam 4a are mixed by the mixer 5.
【００２０】さらに、圧力空気槽７には、補助ポンプ１
４を介して、補助ポンプ１４よりも高い位置に設けられ
水溶液７ａが貯液された給水槽を兼ねた呼水槽１３が接
続されている。呼水槽１３に貯液された水溶液７ａは、
二次側配管６内が所定の圧力より下がると、ＰＳ３がＯ
Ｎして図示しない補助ポンプ起動盤を介して補助ポンプ
１４が作動し、これによって圧力空気槽７及び二次側配
管６に加圧されて充填される。Further, the auxiliary pump 1 is
The priming tank 13 which is provided at a position higher than the auxiliary pump 14 and also serves as a water supply tank in which the aqueous solution 7a is stored is connected via the pump 4. The aqueous solution 7a stored in the priming tank 13 is
When the pressure in the secondary side pipe 6 falls below a predetermined pressure, PS3 becomes O
N, the auxiliary pump 14 is operated via an auxiliary pump starting board (not shown), whereby the pressurized air tank 7 and the secondary pipe 6 are pressurized and filled.
【００２１】消火ポンプ２には、呼水槽１２が接続され
呼水１２ａが供給される。配管の所定の位置には、逆止
弁１７やバルブ１８が設けられている。A priming tank 12 is connected to the fire pump 2 and supplied with priming water 12a. A check valve 17 and a valve 18 are provided at predetermined positions of the pipe.
【００２２】このような構成の泡消火設備においては、
二次側配管６に接続され、内部に水溶液を貯液し、二次
側配管６内に水溶液７ａを供給する水溶液供給手段（圧
力空気槽７）を備えているので、二次側配管６内の濃度
低下を抑制することができる。また、二次側配管６に圧
力空気槽７が接続され圧力空気槽７内の水溶液７ａは、
混合器５によって消火用水１ａと泡消火薬剤４ａとが混
合されたものも充填される。そのため、仮に呼水槽１３
及び補助ポンプ１４が省略されても、本願構成の泡消火
設備は成り立つ。In the foam fire extinguishing equipment having such a configuration,
An aqueous solution supply means (pressure air tank 7) connected to the secondary pipe 6 for storing an aqueous solution therein and supplying an aqueous solution 7 a into the secondary pipe 6 is provided. Can be reduced. Further, a pressurized air tank 7 is connected to the secondary pipe 6, and the aqueous solution 7 a in the pressurized air tank 7 is
The mixture of the fire extinguishing water 1a and the foam 4a is also filled by the mixer 5. Therefore, the priming tank 13
Also, even if the auxiliary pump 14 is omitted, the foam fire extinguishing equipment of the present application is established.
【００２３】また、このような構成の泡消火設備におい
ては、混合器５の一次側に設備していた補助ポンプ１４
と圧力空気槽７を混合器５の二次側に設備することで混
合器５の一次側配管のボリューム（容積）を小さくする
ことができ、混合器５を通過して二次側に漏れる水の量
を減らすことができ、混合器５の二次側の濃度低下をさ
らに抑制することができる。In the foam fire extinguishing system having such a configuration, the auxiliary pump 14 provided on the primary side of the mixer 5 is used.
And the pressure air tank 7 are provided on the secondary side of the mixer 5 to reduce the volume (volume) of the primary pipe of the mixer 5, and water leaking to the secondary side through the mixer 5 Can be reduced, and a decrease in concentration on the secondary side of the mixer 5 can be further suppressed.
【００２４】[0024]
【発明の効果】この発明に係る泡消火設備は、受水槽か
らの消火用水を加圧して流出する消火ポンプと、加圧さ
れた消火用水が流通する一次側配管と、泡消火薬剤が貯
蓄された泡消火薬剤タンクと、一次側配管の端部に設け
られ消火用水と泡消火薬剤とを所定の割合で混合し、泡
消火用液を生成する混合器と、混合器の二次側に連結さ
れ、泡消火用液が流通する二次側配管と、二次側配管に
接続され、内部に泡消火薬剤の水溶液を貯液し、二次側
配管内に水溶液を供給する水溶液供給手段とを備えてい
る。そのため、二次側配管の水溶液の濃度低下を抑制す
ることができる。According to the foam fire extinguishing system of the present invention, a fire extinguishing pump for pressurizing and extinguishing fire extinguishing water from a water receiving tank, a primary pipe through which the pressurized fire extinguishing water flows, and a foam extinguishing agent are stored. A foam extinguishing agent tank, a mixer provided at the end of the primary side pipe, which mixes fire extinguishing water and a foam extinguishing agent at a predetermined ratio to produce a foam extinguishing liquid, and is connected to the secondary side of the mixer. And a secondary pipe through which the foam fire-extinguishing liquid flows, and an aqueous solution supply means connected to the secondary pipe, storing an aqueous solution of the foam fire-extinguishing agent, and supplying the aqueous solution into the secondary pipe. Have. Therefore, a decrease in the concentration of the aqueous solution in the secondary pipe can be suppressed.
【００２５】また、水溶液供給手段は、水溶液を圧縮空
気にて流出させる圧力空気槽である。そのため、二次側
配管の水溶液の濃度低下を抑制することができるととも
に、二次側配管の水溶液の圧力を一定に保つことができ
る。The aqueous solution supply means is a pressurized air tank for discharging the aqueous solution with compressed air. Therefore, the concentration of the aqueous solution in the secondary pipe can be prevented from lowering, and the pressure of the aqueous solution in the secondary pipe can be kept constant.
【００２６】さらに、圧力空気槽には、水溶液が貯液さ
れた呼水槽が接続され、水溶液は、圧力空気槽と呼水槽
との間に設けられた補助ポンプによって圧力空気槽に加
圧されて充填される。そのため、圧力空気槽の水溶液
は、必要に応じて供給され、長時間メンテナンスが不要
な泡消火設備とすることができる。Further, a priming tank in which an aqueous solution is stored is connected to the pressurized air tank, and the aqueous solution is pressurized by the auxiliary pump provided between the pressurized air tank and the priming tank. Will be filled. For this reason, the aqueous solution in the pressurized air tank is supplied as needed, and a foam fire extinguishing system that does not require maintenance for a long time can be provided.
【図１】 本発明の泡消火設備を示す説明図である。FIG. 1 is an explanatory view showing a foam fire extinguishing facility of the present invention.
【図２】 従来の泡消火設備を示す説明図である。FIG. 2 is an explanatory diagram showing a conventional foam fire extinguishing facility.
【図３】 従来の泡消火設備の他の例を示す説明図であ
る。FIG. 3 is an explanatory view showing another example of the conventional foam fire extinguishing equipment.
１ 受水槽、１ａ 消火用水、２ 消火ポンプ、３ 一
次側配管、４ 泡消火薬剤タンク、４ａ 泡消火薬剤、
５ 混合器、６ 二次側配管、７ 圧力空気槽（水溶液
供給手段）、７ａ 水溶液、１３ 呼水槽、１４ 補助
ポンプ。1 water receiving tank, 1a fire extinguishing water, 2 fire extinguishing pump, 3 primary piping, 4 foam fire extinguishing agent tank, 4a foam extinguishing agent,
5 mixer, 6 secondary pipe, 7 pressure air tank (aqueous solution supply means), 7a aqueous solution, 13 priming tank, 14 auxiliary pump.
Claims (3)
る消火ポンプと、 上記加圧された消火用水が流通する一次側配管と、 泡消火薬剤が貯蓄された泡消火薬剤タンクと、 上記一次側配管の端部に設けられ上記消火用水と上記泡
消火薬剤とを所定の割合で混合し、泡消火用液を生成す
る混合器と、 上記混合器の二次側に連結され、上記泡消火用液が流通
する二次側配管と、 上記二次側配管に接続され、内部に上記泡消火薬剤の水
溶液を貯液し、該二次側配管内に該水溶液を供給する水
溶液供給手段とを備えたことを特徴とする泡消火設備。1. A fire-extinguishing pump for pressurizing and extinguishing fire-extinguishing water from a water receiving tank, a primary pipe through which the pressurized fire-extinguishing water flows, a foam-extinguishing chemical tank storing a foam-extinguishing chemical, A mixer that is provided at an end of a primary pipe and mixes the fire extinguishing water and the foam in a predetermined ratio to generate a foam fire extinguishing liquid, and is connected to a secondary side of the mixer, A secondary pipe through which the fire extinguishing liquid flows, and an aqueous solution supply means connected to the secondary pipe, storing an aqueous solution of the foam fire-extinguishing agent therein, and supplying the aqueous solution into the secondary pipe. A foam fire extinguisher characterized by comprising:
縮空気にて流出させる圧力空気槽であることを特徴とす
る請求項１に記載の泡消火設備。2. The foam fire extinguisher according to claim 1, wherein the aqueous solution supply means is a pressurized air tank for discharging the aqueous solution with compressed air.
された呼水槽が接続され、該水溶液は、上記圧力空気槽
と上記呼水槽との間に設けられた補助ポンプによって上
記圧力空気槽に加圧されて充填されることを特徴とする
請求項２に記載の泡消火設備。3. A priming tank in which the aqueous solution is stored is connected to the pressurized air tank, and the aqueous solution is supplied to the compressed air tank by an auxiliary pump provided between the pressurized air tank and the priming tank. 3. The foam fire extinguisher according to claim 2, wherein the tank is filled by being pressurized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001099817A JP4066130B2 (en) | 2001-03-30 | 2001-03-30 | Bubble fire extinguishing equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001099817A JP4066130B2 (en) | 2001-03-30 | 2001-03-30 | Bubble fire extinguishing equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002291925A true JP2002291925A (en) | 2002-10-08 |
| JP4066130B2 JP4066130B2 (en) | 2008-03-26 |
Family
ID=18953318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001099817A Expired - Fee Related JP4066130B2 (en) | 2001-03-30 | 2001-03-30 | Bubble fire extinguishing equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4066130B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005124699A (en) * | 2003-10-22 | 2005-05-19 | Nohmi Bosai Ltd | Foam fire extinguishing equipment |
| WO2008009162A1 (en) * | 2006-06-30 | 2008-01-24 | Weishe Zhang | An alternative foam storing and proportionally mixing apparatus |
| KR101052260B1 (en) * | 2008-11-26 | 2011-07-27 | 주식회사 포스코 | Fabrication equipment |
| CN102807023A (en) * | 2011-06-01 | 2012-12-05 | 株式会社卡施瓦 | Fire extinguishing agent raw liquid storage tank and fire extinguishing agent mixing device |
-
2001
- 2001-03-30 JP JP2001099817A patent/JP4066130B2/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005124699A (en) * | 2003-10-22 | 2005-05-19 | Nohmi Bosai Ltd | Foam fire extinguishing equipment |
| WO2008009162A1 (en) * | 2006-06-30 | 2008-01-24 | Weishe Zhang | An alternative foam storing and proportionally mixing apparatus |
| KR101052260B1 (en) * | 2008-11-26 | 2011-07-27 | 주식회사 포스코 | Fabrication equipment |
| CN102807023A (en) * | 2011-06-01 | 2012-12-05 | 株式会社卡施瓦 | Fire extinguishing agent raw liquid storage tank and fire extinguishing agent mixing device |
| CN102807023B (en) * | 2011-06-01 | 2016-08-03 | 株式会社卡施瓦 | Extinguishing chemical stock solution holding vessel and extinguishing chemical mixing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4066130B2 (en) | 2008-03-26 |
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