CA2577393C - Improved extinguishing flammable liquid fire in an industrial storage tank - Google Patents
Improved extinguishing flammable liquid fire in an industrial storage tank Download PDFInfo
- Publication number
- CA2577393C CA2577393C CA2577393A CA2577393A CA2577393C CA 2577393 C CA2577393 C CA 2577393C CA 2577393 A CA2577393 A CA 2577393A CA 2577393 A CA2577393 A CA 2577393A CA 2577393 C CA2577393 C CA 2577393C
- Authority
- CA
- Canada
- Prior art keywords
- tank
- roof
- discharging
- foam
- liquid
- 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.)
- Active
Links
- 239000007788 liquid Substances 0.000 title claims abstract 31
- 239000000446 fuel Substances 0.000 claims abstract 11
- 239000000843 powder Substances 0.000 claims abstract 6
- 238000007599 discharging Methods 0.000 claims 24
- 238000000034 method Methods 0.000 claims 23
- 239000000126 substance Substances 0.000 claims 22
- 239000006260 foam Substances 0.000 claims 21
- 239000012530 fluid Substances 0.000 claims 4
- 230000001105 regulatory effect Effects 0.000 claims 2
- 238000001816 cooling Methods 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
- A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
- A62C3/065—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products for containers filled with inflammable liquids
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C5/00—Making of fire-extinguishing materials immediately before use
- A62C5/02—Making of fire-extinguishing materials immediately before use of foam
- A62C5/027—Heavy foam
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C99/00—Subject matter not provided for in other groups of this subclass
- A62C99/0009—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames
- A62C99/0036—Methods of extinguishing or preventing the spread of fire by cooling down or suffocating the flames using foam
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
A system and apparatus for extinguishing a fire of a difficult to extinguish fuel or flammable liquid in a storage tank fitted with at least a significant top roof portion, the system including timely discharge of dry powder into a significantly enclosed space or cavity defined between the fuel/liquid surface, or between any floater remaining thereon, and the fixed top roof portion, and apparatus to facilitate the system.
Claims (23)
1. A method for treating a flammable liquid fire associated with an industrial tank having a roof and a substantially enclosed space above liquid in the tank and below the roof, and wherein the liquid consists essentially of fuels or flammable liquids, comprising:
establishing a foam/film blanket over at least 90% of a surface of the liquid within the tank; and discharging dry powder into a space between the roof and said blanket, including introducing dry powder into the tank through a pre-existing opening or vent in structure of the tank or fixed roof, the pre-existing opening or vent located in a wall or roof of the tank above the blanket.
establishing a foam/film blanket over at least 90% of a surface of the liquid within the tank; and discharging dry powder into a space between the roof and said blanket, including introducing dry powder into the tank through a pre-existing opening or vent in structure of the tank or fixed roof, the pre-existing opening or vent located in a wall or roof of the tank above the blanket.
2. The method of claim 1 wherein the discharging step is subsequent to establishing the foam/film blanket to at least two-thirds of an NFPA regulated foam/film blanket.
3. The method of claim 1 wherein the discharging occurs during the last 10 minutes of an NFPA regulated time of application of foam.
4. The method of claim 1 that includes, prior to significant discharging of dry powder into the enclosed space, discharging foam into the space such that establishing said blanket over at least 90% of a surface of the liquid is prior to significant discharging of dry powder.
5. An industrial scale fire fighting system including a tank with a roof having a substantially enclosed space above a flammable liquid in the tank and below the roof, and wherein the flammable liquid consists of the historic straight chain fuels or flammable liquids of the mid-20th century, the system comprising:
at least one opening in the tank wall or roof, the opening in the tank wall or roof located above the level of the liquid and communicating with the space;
means associated with the tank for creating a foam/film blanket on the liquid, the means utilizing at least one said opening; and means associated with the at least one said opening for discharging dry chemical into the space through the opening.
at least one opening in the tank wall or roof, the opening in the tank wall or roof located above the level of the liquid and communicating with the space;
means associated with the tank for creating a foam/film blanket on the liquid, the means utilizing at least one said opening; and means associated with the at least one said opening for discharging dry chemical into the space through the opening.
6. A fixed foam/dry chemical system for an industrial scale tank with a roof having a space above a flammable liquid in the tank and below the roof, and wherein the flammable liquid consists of the historic straight chain fuels or flammable liquids of the mid-20th century, comprising:
at least one foam conduit fixed to the tank, in valved fluid communication with an interior of the tank, the fluid communication including through at least one opening in the tank wall or roof, above the level of the liquid; and at least one dry chemical conduit fixed to the tank, structured for attachment to a source of dry chemical and in valved fluid communication with the space under the roof of the tank, the fluid communicating through at least one opening in the tank wall or roof, the opening in the tank wall or roof located above the level of the liquid.
at least one foam conduit fixed to the tank, in valved fluid communication with an interior of the tank, the fluid communication including through at least one opening in the tank wall or roof, above the level of the liquid; and at least one dry chemical conduit fixed to the tank, structured for attachment to a source of dry chemical and in valved fluid communication with the space under the roof of the tank, the fluid communicating through at least one opening in the tank wall or roof, the opening in the tank wall or roof located above the level of the liquid.
7. The system of claim 6 including a nozzle for discharge of dry chemical attached to the dry chemical conduit.
8. A method for extinguishing a fire of a flammable liquid in a storage tank fitted with at least a significant fixed top roof portion, and wherein the liquid consists essentially of fuels or flammable liquids, comprising:
prior to significant discharging of dry chemical into a cavity above the fuel/liquid and below the fixed top roof portion, discharging foam into the cavity above the fuel/liquid and below the fixed top roof portion; and after at least two-thirds of the way through an NFPA-recommended application rate/duration procedure guideline for the foam attack, initiate discharging significant dry chemical into the cavity above the fuel/liquid and below the fixed roof portion through a pre-existing opening or vent in structure of the tank or fixed roof, the opening or vent located in a wall or roof of the tank above the blanket.
prior to significant discharging of dry chemical into a cavity above the fuel/liquid and below the fixed top roof portion, discharging foam into the cavity above the fuel/liquid and below the fixed top roof portion; and after at least two-thirds of the way through an NFPA-recommended application rate/duration procedure guideline for the foam attack, initiate discharging significant dry chemical into the cavity above the fuel/liquid and below the fixed roof portion through a pre-existing opening or vent in structure of the tank or fixed roof, the opening or vent located in a wall or roof of the tank above the blanket.
9. The method of claim 8 that includes discharging the dry chemical in the last ten minutes of the NFPA recommended application rate/duration procedure guideline.
10. The method of claim 8 that includes discharging the dry chemical for 5 to 15 seconds.
11. The method of claims 1 or 8 that includes discharging the dry chemical after at least 40 minutes of foam application.
12. The method of claims 1 or 8 that includes discharging the dry chemical through at least one pre-existing upwind tank vent or opening where flames are manifest in a downwind vent or opening and not at said at least one upwind vent or opening.
13. The method of claims 1 or 8 that include predominantly discharging the dry chemical in a direction substantially tangential to an inner tank wall portion proximate the opening or vent.
14. The method of claim 12 wherein the vent is a fixed system foam and/or dry chemical vent.
15. The method of claim 8 wherein an interior roof includes a floater on top of the fuel/liquid and the discharging of foam and of dry chemical includes a discharging into a cavity defined between the floater and the fixed top roof portion.
16. The method of claim 8 wherein essentially all dry chemical is discharged after at least two-thirds of the way through an NFPA recommended procedure guidelines for the foam attack.
17. A method for extinguishing fire in an industrial tank having a roof, comprising prior to significant discharging of dry chemical into a cavity above a liquid in the tank and below a fixed top roof portion, covering at least 90% of the surface of the liquid in the tank with a blanket of foam and wherein the flammable liquid consists of the historic straight chain fuels or flammable liquids of the mid-20th century; and subsequent to the establishment of a foam blanket on the liquid in the tank, discharging dry chemical through an aperture in at least one of the tank and the roof, the aperture located in a space below the roof and above the foam blanket.
18. The method of claim 17 wherein the discharging of the dry chemical utilizes a fixed dry chemical system.
19. The method of claim 17 or 18 wherein the creating of the foam blanket utilizes a fixed foam system.
20. The method of claim 17 that includes cooling tank wall and/or roof surfaces with water.
21. The method of claim 1 wherein the establishing is over a period of minutes and the discharging dry powder is for a period of less than minutes.
22. The method of claim 8 wherein the discharging of foam is for a period of minutes and the period of discharging dry chemical is for a period of less than minutes.
23. The method of claim 17 wherein the covering of surface with a blanket of foam is over a period of minutes and the discharging dry chemical is for a period of less than minutes.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2004/026762 WO2005019729A2 (en) | 2003-08-20 | 2004-08-19 | Dry chemical system for extinguishing dffficult fuel or flammable liquid fires in an industrial tank with a roof creating a space above the liquid |
| USPCT/US2004/026,762 | 2004-08-19 | ||
| PCT/US2005/028946 WO2006023434A1 (en) | 2004-08-19 | 2005-08-12 | Improved extinguishing flammable liquid fire in an industrial storage tank |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2577393A1 CA2577393A1 (en) | 2006-03-02 |
| CA2577393C true CA2577393C (en) | 2014-10-14 |
Family
ID=35967860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2577393A Active CA2577393C (en) | 2004-08-19 | 2005-08-12 | Improved extinguishing flammable liquid fire in an industrial storage tank |
Country Status (4)
| Country | Link |
|---|---|
| JP (2) | JP5229939B2 (en) |
| CA (1) | CA2577393C (en) |
| GB (1) | GB2431873B (en) |
| WO (1) | WO2006023434A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4805850B2 (en) * | 2007-01-09 | 2011-11-02 | 三井住友建設株式会社 | Dome structure, storage tank and fire fighting method |
| JP4792484B2 (en) * | 2008-05-28 | 2011-10-12 | 深田工業株式会社 | Oil tank foam fire extinguishing equipment |
| EP2629852B1 (en) * | 2010-10-19 | 2021-12-08 | Tyco Fire Products LP | Focused stream, aerated foam projecting nozzle including fixed wand system and method as well as possibly portable center pointing nozzle |
| CN109279204B (en) * | 2018-08-28 | 2019-10-11 | 深圳市纯水一号水处理科技有限公司 | A kind of intelligent nitrogen-sealed water tank that flexible floating roof device is set |
| CN109865222A (en) * | 2019-01-22 | 2019-06-11 | 安徽建筑大学 | A kind of oil pumping system of oil storage tank |
| CN111701175B (en) * | 2020-07-02 | 2021-06-25 | 义乌市佳倩科技有限公司 | Water-ballast underwater fire fighting device with rescue platform and pumping water by water pump |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2936834A (en) * | 1958-05-02 | 1960-05-17 | Phillips Petroleum Co | Fire extinguishing method and compositions |
| JPS62243570A (en) * | 1986-04-17 | 1987-10-24 | 東京防災設備株式会社 | Air forming chamber and maintenance system for oil tank operable remotely |
| US5573068A (en) * | 1994-06-14 | 1996-11-12 | Council Of Scientific & Industrial Research | Apparatus for extinguishing fires in oil storage tanks |
| JP2968932B2 (en) * | 1994-12-26 | 1999-11-02 | ホーチキ株式会社 | Short range water spray nozzle |
| US5913366A (en) * | 1995-04-24 | 1999-06-22 | Williams Fire & Hazard Control, Inc. | Methods for extinguishing tank fires, including low boiling point and/or low auto-ignition fluid fires |
| US6398136B1 (en) * | 1999-08-16 | 2002-06-04 | Edward V. Smith | Penetrating and misting fire-fighting tool with removably attachable wands and nozzles |
| JP4621337B2 (en) * | 2000-07-05 | 2011-01-26 | ヤマトプロテック株式会社 | Fire extinguishing nozzle and fire extinguishing method |
| JP2003000747A (en) * | 2001-06-18 | 2003-01-07 | Shinichi Ikemi | Water gun having several kinds of nozzles |
| US7114575B2 (en) * | 2003-01-22 | 2006-10-03 | Viasa Incorporated, S.A. De C.V. | Method and apparatus for extinguishing fires in storage vessels containing flammable or combustible liquids |
| PL2108407T3 (en) * | 2003-08-20 | 2011-04-29 | Williams Fire And Hazard Control Inc | Dry chemical system for extinguishing difficult fuel or flammable liquid fires in an industrial tank with a roof creating a space above the liquid |
-
2005
- 2005-08-12 WO PCT/US2005/028946 patent/WO2006023434A1/en active Application Filing
- 2005-08-12 CA CA2577393A patent/CA2577393C/en active Active
- 2005-08-12 JP JP2007527905A patent/JP5229939B2/en active Active
-
2007
- 2007-02-19 GB GB0703173A patent/GB2431873B/en not_active Expired - Fee Related
-
2011
- 2011-12-22 JP JP2011281160A patent/JP5389895B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| GB2431873B (en) | 2010-01-13 |
| JP2008517635A (en) | 2008-05-29 |
| GB2431873A (en) | 2007-05-09 |
| GB0703173D0 (en) | 2007-03-28 |
| WO2006023434A9 (en) | 2006-06-08 |
| JP5229939B2 (en) | 2013-07-03 |
| WO2006023434A1 (en) | 2006-03-02 |
| CA2577393A1 (en) | 2006-03-02 |
| JP2012091004A (en) | 2012-05-17 |
| JP5389895B2 (en) | 2014-01-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request |