JPH0423564Y2 - - Google Patents
Info
- Publication number
- JPH0423564Y2 JPH0423564Y2 JP1984013254U JP1325484U JPH0423564Y2 JP H0423564 Y2 JPH0423564 Y2 JP H0423564Y2 JP 1984013254 U JP1984013254 U JP 1984013254U JP 1325484 U JP1325484 U JP 1325484U JP H0423564 Y2 JPH0423564 Y2 JP H0423564Y2
- Authority
- JP
- Japan
- Prior art keywords
- foam
- oil storage
- chamber
- storage tank
- sealing plate
- 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.)
- Expired
Links
- 239000006260 foam Substances 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 12
- 238000005187 foaming Methods 0.000 claims description 6
- 238000007689 inspection Methods 0.000 description 8
- 239000011261 inert gas Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 4
- 239000011521 glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
Description
【考案の詳細な説明】
本考案は不活性ガスを充てんしてなる貯油槽に
設ける泡消火装置に関するものである。[Detailed Description of the Invention] The present invention relates to a foam fire extinguishing device installed in an oil storage tank filled with inert gas.
従来、石油タンク等、可燃性の油を貯える槽に
は泡消火装置が設けてある。この泡消火装置は第
１図に示すように、貯油槽ａの側壁ｂに、泡放出
口ｃを設け、この泡放出口ｃに、発泡器ｄを設け
てある。発泡器ｄはチヤンバーｅに発泡筒ｆが連
結してあつて、発泡筒ｆの下部には、側方に空気
取入口ｇが、またノズルｈが設けてある。発泡筒
ｆは配管によつてポンプ、薬液タンク（共に図示
してない）に連結してある。そして発泡筒ｆの上
端には硝子封板ｉを設けて、発泡筒ｆを塞いでい
る。またチヤンバーｅの頂部には、点検口ｊを設
けてあつて蓋ｋで塞いでいる。しかしながら近年
防火上、油の蒸発防止の目的で、貯油槽の上部空
間に不活性ガスを充てんするようになつて来
た。例えば石油の海上備蓄のタンカーを貯油槽に
するような場合、この貯油槽に約1800mmAg位の
不活性ガスを充てんしている。こうした貯油槽
に、従来の泡消火装置をそのまゝ設けたのでは、
点検時蓋ｋを開らくと、貯油槽ａの不活性ガス
は、この点検口ｊより大気中に逸出する。そのた
め泡放出口ｃに弁を設けて、点検時弁を閉めてか
ら、泡消火装置の点検をしている。泡放出口ｃは
相当大口径であるので、弁の価格も高価である上
に、弁の開け閉め等不便であつた。本考案はこう
した欠点を解消するもので、装置点検上取扱い易
い、設備上のコスト安価な装置を提供するもので
ある。 Conventionally, tanks storing flammable oil, such as petroleum tanks, are equipped with foam fire extinguishing devices. As shown in FIG. 1, this foam fire extinguishing system has a foam discharge port c provided in a side wall b of an oil storage tank a, and a foamer d provided in this foam discharge port c. The foaming device d has a foaming tube f connected to a chamber e, and the lower part of the foaming tube f is provided with an air intake port g on the side and a nozzle h. The foam tube f is connected to a pump and a chemical tank (both not shown) via piping. A glass sealing plate i is provided at the upper end of the foam tube f to close the foam tube f. Furthermore, an inspection opening j is provided at the top of the chamber e and is covered with a lid k. However, in recent years, for the purpose of fire prevention and prevention of oil evaporation, the upper space of the oil storage tank has come to be filled with inert gas. For example, when a tanker for offshore oil storage is used as an oil storage tank, the tank is filled with approximately 1800 mmAg of inert gas. If a conventional foam fire extinguishing system was installed in such an oil storage tank,
When the lid k is opened during inspection, the inert gas in the oil storage tank a escapes into the atmosphere through the inspection opening j. For this reason, a valve is installed at the foam outlet c, and the valve is closed during inspection before inspecting the foam fire extinguishing system. Since the bubble discharge port c has a fairly large diameter, the valve is not only expensive but also inconvenient to open and close. The present invention eliminates these drawbacks and provides a device that is easy to handle in terms of device inspection and has low equipment costs.
以下実施例を挙げて本考案を説明する。 The present invention will be described below with reference to Examples.
第２図において貯油槽a′の側壁b′には泡放出口
c′を設けてある。この泡放出口c′には、発泡器１
を連結してある。発泡器１は、チヤンバー２に発
泡筒３を連結してあつて、発泡筒３の上端は、チ
ヤンバー２内に開口している。発泡筒３の下部に
は、側方に空気取入口４、また中心にノズル５が
設けてある。チヤンバー２の上端には点検口６を
設けて、蓋７で塞いでいる。そしてチヤンバー２
と、泡放出口c′の間には、封板８を配置して、泡
放出口c′を塞いでいる。 In Figure 2, there is a foam outlet in the side wall b' of the oil storage tank a'.
c′ is provided. This foam outlet c' is equipped with a foamer 1.
are connected. The foamer 1 has a foam tube 3 connected to a chamber 2, and the upper end of the foam tube 3 opens into the chamber 2. At the bottom of the foam tube 3, an air intake port 4 is provided on the side and a nozzle 5 is provided in the center. An inspection opening 6 is provided at the upper end of the chamber 2 and is covered with a lid 7. and chamber 2
A sealing plate 8 is disposed between the foam outlet c' and the bubble outlet c' to close the bubble outlet c'.
封板部（第３図参照）は、チヤンバー２の下部
に位置し、チヤンバー２の側壁２ａに、封板取付
口９を設け、この取付口９を薄い硝子封板１０で
密閉し、穴あき格子１１で封板１０を固定する構
造となつている。１２，１３はパツキンである。
パツキン１３は格子１１と同様な形状のパツキン
である。硝子封板１０は他の材質、例えばプラス
チツク等でもよく、貯油槽の充てん不活性ガス
圧、通常1800mmAg〜−400mmAgの圧力で破れな
い薄板で、発泡筒の泡放出圧力約３Kg／cm2位で、
容易に破れるものであればよい。 The sealing plate part (see Fig. 3) is located at the bottom of the chamber 2, and has a sealing plate mounting opening 9 in the side wall 2a of the chamber 2, and sealing this mounting opening 9 with a thin glass sealing plate 10. The structure is such that the sealing plate 10 is fixed with a grid 11. 12 and 13 are Patsukin.
The packing 13 has the same shape as the grid 11. The glass sealing plate 10 may be made of other materials, such as plastic, and is a thin plate that does not break under the pressure of inert gas filled in the oil storage tank, which is usually 1800 mmAg to -400 mmAg, and the foam release pressure of the foam tube is approximately 3 kg/ cm2 . ,
Any material that can be easily torn is fine.
この装置において、火災時発泡筒３に泡薬液が
ポンプで送られて来ると、ノズル５より薬液が放
出し、発泡筒３で空気を混入し、チヤンバー２に
おいて良好な泡となり、この薬液は封板１０を破
つて、泡放出口c′より貯油槽a′に放出され、貯油
槽の火災を消火する。 In this device, when a foam chemical solution is pumped into the foaming tube 3 in the event of a fire, the chemical solution is released from the nozzle 5, air is mixed in the foaming tube 3, and it becomes a good foam in the chamber 2, and this chemical solution is sealed. The foam is released into the oil storage tank a' through the foam outlet c' by tearing the plate 10, extinguishing the fire in the oil storage tank.
封板１０の点検、整備は、点検口６の蓋７を開
らいて容易にできる。 Inspection and maintenance of the sealing plate 10 can be easily performed by opening the lid 7 of the inspection port 6.
本考案は以上のように不活性ガスを充てんした
貯油槽において、槽と泡消火装置との間に封板を
設けてあるので、泡消火装置の点検整備に当たつ
て貯油槽の不活性ガスを外部に漏らすことなく実
施できる。 As described above, in the oil storage tank filled with inert gas, this invention has a sealing plate between the tank and the foam fire extinguishing system. This can be done without disclosing it to the outside world.
従来用いられている泡消火装置に僅かの改良を
加えただけで完成する装置で経済的である。 It is an economical device that can be completed with just a few modifications to the conventional foam fire extinguishing device.
第１図は従来の泡消火装置を示す概略的な断面
図、第２図は本考案の実施例を示す概略的な断面
図、第３図は封板部の断面図である。
ａ，a′……貯油槽、ｂ，b′……側壁、ｃ，c′…
…泡放出口、１……発泡器、２……チヤンバー、
１０……封板。
FIG. 1 is a schematic sectional view showing a conventional foam fire extinguishing device, FIG. 2 is a schematic sectional view showing an embodiment of the present invention, and FIG. 3 is a sectional view of a sealing plate portion. a, a'...Oil storage tank, b, b'...Side wall, c, c'...
...foam outlet, 1... foamer, 2... chamber,
10... Seal plate.
Claims (1)
にチヤンバーを連結してなる発泡器において、チ
ヤンバーと放出口との間に、封板を設けてなる不
活性ガスを充てんした貯油層の泡消火装置。 In a foaming device, a foam discharge port is provided on the side wall of an oil storage tank, and a chamber is connected to the foam discharge port, and a sealing plate is provided between the chamber and the discharge port. Foam fire extinguishing device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1325484U JPS60124950U (en) | 1984-02-03 | 1984-02-03 | Foam fire extinguishing system for oil storage tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1325484U JPS60124950U (en) | 1984-02-03 | 1984-02-03 | Foam fire extinguishing system for oil storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60124950U JPS60124950U (en) | 1985-08-23 |
| JPH0423564Y2 true JPH0423564Y2 (en) | 1992-06-02 |
Family
ID=30497092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1325484U Granted JPS60124950U (en) | 1984-02-03 | 1984-02-03 | Foam fire extinguishing system for oil storage tank |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60124950U (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011206264A (en) * | 2010-03-30 | 2011-10-20 | Nohmi Bosai Ltd | Foam chamber |
| JP5432029B2 (en) * | 2010-03-30 | 2014-03-05 | 能美防災株式会社 | Foam chamber |
| JP5665941B2 (en) * | 2013-09-25 | 2015-02-04 | 能美防災株式会社 | Foam chamber |
| JP2019103787A (en) * | 2017-12-14 | 2019-06-27 | インディアン オイル コーポレイション リミテッドＩｎｄｉａｎ Ｏｉｌ Ｃｏｒｐｏｒａｔｉｏｎ Ｌｉｍｉｔｅｄ | Fixed cone roof tank fire extinguishing system |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60126174A (en) * | 1983-11-11 | 1985-07-05 | 株式会社新潟鐵工所 | Foam fire extinguisher in storage tank |
-
1984
- 1984-02-03 JP JP1325484U patent/JPS60124950U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60126174A (en) * | 1983-11-11 | 1985-07-05 | 株式会社新潟鐵工所 | Foam fire extinguisher in storage tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60124950U (en) | 1985-08-23 |
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