CA2423593A1 - Improved fire fighting nozzle and method including pressure regulation, chemical and eduction features - Google Patents
Improved fire fighting nozzle and method including pressure regulation, chemical and eduction features Download PDFInfo
- Publication number
- CA2423593A1 CA2423593A1 CA002423593A CA2423593A CA2423593A1 CA 2423593 A1 CA2423593 A1 CA 2423593A1 CA 002423593 A CA002423593 A CA 002423593A CA 2423593 A CA2423593 A CA 2423593A CA 2423593 A1 CA2423593 A1 CA 2423593A1
- Authority
- CA
- Canada
- Prior art keywords
- nozzle
- fire fighting
- flow rate
- orifice
- discharge orifice
- 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
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/05—Nozzles specially adapted for fire-extinguishing with two or more outlets
- A62C31/07—Nozzles specially adapted for fire-extinguishing with two or more outlets for different media
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/02—Nozzles specially adapted for fire-extinguishing
- A62C31/12—Nozzles specially adapted for fire-extinguishing for delivering foam or atomised foam
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Nozzles (AREA)
- Fire-Extinguishing Compositions (AREA)
Abstract
A selectively automatic fire fithting nozzle a method of use including adjustable means (ST) of limiting a range of automatic adjustement (B) of a discharge orifice of the nozzle, providing an option of selecting a constant pressure for a first fraction of a discharge window and selecting a relative ly constant flow for a second fraction.
Claims (13)
1. A selectively automatic fire fighting nozzle, comprising:
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice defined at least in part by elements that relatively adjust automatically, over a range; and a stop connected to the nozzle body, adjustable to limit a range of automatic relative adjustment between orifice defining elements.
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice defined at least in part by elements that relatively adjust automatically, over a range; and a stop connected to the nozzle body, adjustable to limit a range of automatic relative adjustment between orifice defining elements.
2. The apparatus of claim 1 wherein a flow window is defined by the adjustable discharge orifice and wherein the stop is adjustably located on the nozzle body to divide the flow window such that the nozzle flows at a variable flow rate and at approximately constant pressure for a first fraction of the flow window and at a variable pressure and relatively constant flow rate for a second fraction of the flow window.
3. The apparatus of claim 1 wherein the stop limits forward motion of a floating baffle.
4. A selectively automatic fire fighting nozzle, comprising:
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice automatically adjustable within a range; and adjustable means for limiting the range of automatic adjustment of the orifice.
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice automatically adjustable within a range; and adjustable means for limiting the range of automatic adjustment of the orifice.
5. The apparatus of claims 1 or 4 wherein the nozzle is a self-educting foam fog nozzle.
6. The apparatus of claims 1 or 4 wherein the nozzle is a self-metering self-educting foam fog nozzle.
7. A method of operating an automatic fire fighting nozzle comprising:
maintaining approximately a selected fire fighting fluid discharge pressure for fire fighting fluid flowing through the nozzle for fluid flow rates up to a targeted flow rate; and allowing fluid discharge pressure to rise above the selected discharge pressure while maintaining (approximately) fluid flow rate upon reaching a targeted flow rate.
maintaining approximately a selected fire fighting fluid discharge pressure for fire fighting fluid flowing through the nozzle for fluid flow rates up to a targeted flow rate; and allowing fluid discharge pressure to rise above the selected discharge pressure while maintaining (approximately) fluid flow rate upon reaching a targeted flow rate.
8. The method of claim 7 that includes allowing pressure to rise by limiting adjustment of an automatically adjustable discharge orifice within a range of adjustment of the orifice.
9. The method of claims 7 or 8 that includes educting foam concentrate into the nozzle.
10. The method of claim 9 that includes adjustably metering foam concentrate into the nozzle as the discharge orifice adjusts.
1. A selectively automatic fire fighting nozzle, comprising:
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice defined, at least in part, by elements that relatively adjust, automatically, over an available range; and a stop, connected to the nozzle body, adjustable to further limit within the available range the range of automatic relative adjustment between orifice defining elements.
2. The apparatus of claim 1 wherein a flow window is defined by the adjustable discharge orifice and wherein the stop is adjustably located on the nozzle body to divide the flow window such that the nozzle flows at a variable flow rate and at approximately constant pressure for a first fraction of the flow window and at a variable pressure and relatively constant flow rate for a second fraction of the flow window.
3. The apparatus of claim 1 wherein the stop limits forward motion of a floating baffle.
4. A selectively automatic fire fighting nozzle, comprising:
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice automatically adjustable within an available range; and adjustable means for limiting the range of automatic adjustment of the orifice within the available range.
5. The apparatus of claims 1 or 4 wherein the nozzle is a self-educting foam fog nozzle.
6. The apparatus of claims 1 or 4 wherein the nozzle is a self metering self-educting foam fog nozzle.
7. A method of operating an automatic fire fighting nozzle comprising:
targeting a flow rate less than a maximum possible flow rate for the nozzle operating at standard supply pressure;
maintaining approximately a selected fire fighting fluid discharge pressure for fire fighting fluid flowing through the nozzle for fluid flow rates up to approximately the targeted flow rate; and allowing fluid discharge pressure to rise above the selected discharge pressure while maintaining (approximately) fluid flow rate upon reaching the targeted flow rate.
8. The method of claim 7 that includes allowing pressure to rise by limiting adjustment of an automatically adjustable discharge orifice within a range of adjustment of the orifice.
9. The method of claims 7 or 8 that includes educting foam concentrate into the nozzle.
10. The method of claim 9 that includes adjustably metering foam concentrate into the nozzle as the discharge orifice adjusts.
1. A selectively automatic fire fighting nozzle, comprising:
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice defined, at least in part, by elements that relatively adjust, automatically, over an available range; and a stop, connected to the nozzle body, adjustable to further limit within the available range the range of automatic relative adjustment between orifice defining elements.
2. The apparatus of claim 1 wherein a flow window is defined by the adjustable discharge orifice and wherein the stop is adjustably located on the nozzle body to divide the flow window such that the nozzle flows at a variable flow rate and at approximately constant pressure for a first fraction of the flow window and at a variable pressure and relatively constant flow rate for a second fraction of the flow window.
3. The apparatus of claim 1 wherein the stop limits forward motion of a floating baffle.
4. A selectively automatic fire fighting nozzle, comprising:
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice automatically adjustable within an available range; and adjustable means for limiting the range of automatic adjustment of the orifice within the available range.
5. The apparatus of claims 1 or 4 wherein the nozzle is a self-educting foam fog nozzle.
6. The apparatus of claims 1 or 4 wherein the nozzle is a self metering self-educting foam fog nozzle.
7. A method of operating an automatic fire fighting nozzle comprising:
targeting a flow rate less than a maximum possible flow rate for the nozzle operating at standard supply pressure;
maintaining approximately a selected fire fighting fluid discharge pressure for fire fighting fluid flowing through the nozzle for fluid flow rates up to approximately the targeted flow rate; and allowing fluid discharge pressure to rise above the selected discharge pressure while maintaining (approximately) fluid flow rate upon reaching the targeted flow rate.
8. The method of claim 7 that includes allowing pressure to rise by limiting adjustment of an automatically adjustable discharge orifice within a range of adjustment of the orifice.
9. The method of claims 7 or 8 that includes educting foam concentrate into the nozzle.
10. The method of claim 9 that includes adjustably metering foam concentrate into the nozzle as the discharge orifice adjusts.
11. A selectively automatic fire fighting nozzle, comprising:
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice defined at least in part by elements that relatively adjust automatically, over an available range;
a stop connected to the nozzle body, adjustable to limit a range of automatic relative adjustment between orifice defining elements within the available range; and wherein a flow window is defined by the adjustable discharge orifice and wherein the stop is adjustably located on the nozzle body to divide the flow window such that the nozzle flows at a variable flow rate and at approximately constant pressure for a first lower flow rate fraction of the flow window and at a variable pressure and relatively constant flow rate for a second higher flow rate fraction of the flow window.
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice defined at least in part by elements that relatively adjust automatically, over an available range;
a stop connected to the nozzle body, adjustable to limit a range of automatic relative adjustment between orifice defining elements within the available range; and wherein a flow window is defined by the adjustable discharge orifice and wherein the stop is adjustably located on the nozzle body to divide the flow window such that the nozzle flows at a variable flow rate and at approximately constant pressure for a first lower flow rate fraction of the flow window and at a variable pressure and relatively constant flow rate for a second higher flow rate fraction of the flow window.
12. A selectively automatic fire fighting nozzle, comprising:
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice defined at least in part by elements that relatively adjust automatically, over an available range;
-a stop connected to the nozzle body, adjustable to limit a range of automatic relative adjustment between orifice defining elements within the available range; and wherein the stop limits forward motion of a floating baffle.
a nozzle body defining a fire fighting fluid conduit terminating in a discharge orifice;
the discharge orifice defined at least in part by elements that relatively adjust automatically, over an available range;
-a stop connected to the nozzle body, adjustable to limit a range of automatic relative adjustment between orifice defining elements within the available range; and wherein the stop limits forward motion of a floating baffle.
13. A method of operating an automatic fire fighting nozzle comprising:
maintaining approximately a selected fire fighting fluid discharge pressure for fire fighting fluid flowing through the nozzle for fluid flow rates up to a targeted flow rate;
allowing fluid discharge pressure to rise above the selected discharge pressure while maintaining (approximately) fluid flow rate upon reaching a targeted flow rate; and allowing pressure to rise by limiting the adjustment of an automatically adjustable discharge orifice within an available range of adjustment of the orifice.
maintaining approximately a selected fire fighting fluid discharge pressure for fire fighting fluid flowing through the nozzle for fluid flow rates up to a targeted flow rate;
allowing fluid discharge pressure to rise above the selected discharge pressure while maintaining (approximately) fluid flow rate upon reaching a targeted flow rate; and allowing pressure to rise by limiting the adjustment of an automatically adjustable discharge orifice within an available range of adjustment of the orifice.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2000/026568 WO2002026393A1 (en) | 2000-09-27 | 2000-09-27 | Improved fire fighting nozzle and method including pressure regulation, chemical and eduction features |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2423593A1 true CA2423593A1 (en) | 2002-04-04 |
| CA2423593C CA2423593C (en) | 2010-09-14 |
Family
ID=21741816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2423593A Expired - Fee Related CA2423593C (en) | 2000-09-27 | 2000-09-27 | Improved fire fighting nozzle and method including pressure regulation, chemical and eduction features |
Country Status (11)
| Country | Link |
|---|---|
| EP (1) | EP1328353B1 (en) |
| JP (1) | JP4889911B2 (en) |
| CN (1) | CN1455706A (en) |
| AT (1) | ATE480304T1 (en) |
| AU (2) | AU2000277235B2 (en) |
| CA (1) | CA2423593C (en) |
| DE (1) | DE60044949D1 (en) |
| ES (1) | ES2350913T3 (en) |
| MX (1) | MXPA03002675A (en) |
| NO (1) | NO20031169L (en) |
| WO (1) | WO2002026393A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2871389B1 (en) * | 2004-06-11 | 2006-09-22 | St Mihiel Sas Soc Par Actions | FIRE LANCE WITH CONSTANT FLUID FLOW |
| CN103990243A (en) * | 2013-05-21 | 2014-08-20 | 福州大学 | Pressure-holding fire-extinguishing nozzle and method for realizing pressure equilibrium in fire-extinguishing nozzle |
| WO2021137179A1 (en) * | 2020-01-03 | 2021-07-08 | Tyco Fire Products Lp | Adjustable fog jet nozzle |
| CN113134189A (en) * | 2020-01-19 | 2021-07-20 | 山东昊星洁士新材料科技有限公司 | Jet mixing fire-fighting device |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3539112A (en) * | 1969-04-16 | 1970-11-10 | Elkhart Brass Mfg Co | Fire hose nozzle with automatic volume adjustment |
| US3684192A (en) * | 1970-06-22 | 1972-08-15 | Fire Task Force Innovations In | Constant pressure, variable flow nozzle |
| JPS5622930Y2 (en) * | 1978-06-26 | 1981-05-29 | ||
| US4469279A (en) * | 1982-08-30 | 1984-09-04 | Premier Industrial Corporation | Constant pressure nozzle with selective volume limit control |
| JPS61142065U (en) * | 1985-02-26 | 1986-09-02 | ||
| US4768718A (en) * | 1987-04-10 | 1988-09-06 | Slautterback Corporation | Nozzle with internal valve for applying viscous fluid material |
| US5167285A (en) * | 1991-03-21 | 1992-12-01 | Cca, Inc. | Dry powder and liquid method and apparatus for extinguishing fire |
| US5312048A (en) * | 1993-03-25 | 1994-05-17 | Task Force Tips, Inc. | Regulating nozzle with adjustable effective area baffle |
| US5330105A (en) * | 1993-03-26 | 1994-07-19 | Valkyrie Scientific Proprietary, L.C. | Aspirating nozzle and accessory systems therefor |
| JPH1147301A (en) * | 1997-08-01 | 1999-02-23 | Ishikawajima Shibaura Mach Co Ltd | Water discharging gun |
-
2000
- 2000-09-27 AU AU2000277235A patent/AU2000277235B2/en not_active Ceased
- 2000-09-27 MX MXPA03002675A patent/MXPA03002675A/en active IP Right Grant
- 2000-09-27 JP JP2002530214A patent/JP4889911B2/en not_active Expired - Lifetime
- 2000-09-27 EP EP00966967A patent/EP1328353B1/en not_active Expired - Lifetime
- 2000-09-27 AU AU7723500A patent/AU7723500A/en active Pending
- 2000-09-27 AT AT00966967T patent/ATE480304T1/en not_active IP Right Cessation
- 2000-09-27 ES ES00966967T patent/ES2350913T3/en not_active Expired - Lifetime
- 2000-09-27 CA CA2423593A patent/CA2423593C/en not_active Expired - Fee Related
- 2000-09-27 DE DE60044949T patent/DE60044949D1/en not_active Expired - Lifetime
- 2000-09-27 CN CN00819911.6A patent/CN1455706A/en active Pending
- 2000-09-27 WO PCT/US2000/026568 patent/WO2002026393A1/en active Application Filing
-
2003
- 2003-03-14 NO NO20031169A patent/NO20031169L/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP1328353B1 (en) | 2010-09-08 |
| NO20031169D0 (en) | 2003-03-14 |
| CA2423593C (en) | 2010-09-14 |
| EP1328353A4 (en) | 2008-05-14 |
| EP1328353A1 (en) | 2003-07-23 |
| AU7723500A (en) | 2002-04-08 |
| WO2002026393A1 (en) | 2002-04-04 |
| JP2004509716A (en) | 2004-04-02 |
| MXPA03002675A (en) | 2004-12-03 |
| CN1455706A (en) | 2003-11-12 |
| DE60044949D1 (en) | 2010-10-21 |
| ATE480304T1 (en) | 2010-09-15 |
| ES2350913T3 (en) | 2011-01-28 |
| AU2000277235B2 (en) | 2006-04-27 |
| NO20031169L (en) | 2003-05-14 |
| JP4889911B2 (en) | 2012-03-07 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20160927 |