WO2003105963A1 - Auf wärme reagierender verschluss für sprinkler und düsen - Google Patents
Auf wärme reagierender verschluss für sprinkler und düsen Download PDFInfo
- Publication number
- WO2003105963A1 WO2003105963A1 PCT/CH2003/000349 CH0300349W WO03105963A1 WO 2003105963 A1 WO2003105963 A1 WO 2003105963A1 CH 0300349 W CH0300349 W CH 0300349W WO 03105963 A1 WO03105963 A1 WO 03105963A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cover plate
- closure
- closure according
- melt
- pin
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/08—Control of fire-fighting equipment comprising an outlet device containing a sensor, or itself being the sensor, i.e. self-contained sprinklers
- A62C37/10—Releasing means, e.g. electrically released
- A62C37/11—Releasing means, e.g. electrically released heat-sensitive
- A62C37/12—Releasing means, e.g. electrically released heat-sensitive with fusible links
Definitions
- the present invention relates to a heat-responsive closure for sprinklers and nozzles according to the preamble of claim 1.
- thermocouples for example in stationary extinguishing systems, are usually equipped with thermocouples that block the sprinkler opening when ready with elaborate holding devices and sealing elements.
- the holding devices serve as an auxiliary construction to secure the thermocouples when ready and function directly or indirectly as a water distributor (deflector).
- the thermocouples are fusible link constructions or glass kegs, which are rinsed away by the escaping water when triggered. These holding and auxiliary constructions impair the even water distribution by causing a so-called "spray shadow" in the desired distribution of the water. Soldered solder constructions and glass kegs are therefore not suitable for the fine distribution of the extinguishing agent by means of sprinklers or nozzles.
- thermocouples for dispensing extinguishing liquid in stationary fire extinguishing systems are well known.
- DE 27 03 459 is a sprinkler nozzle for standing, hanging and horizontal mounting with a nozzle body and a baffle plate, which is connected to the nozzle body by at least two supporting elements acting on the edge of the baffle plate and an arrangement which blocks the nozzle mouth when the sprinkler nozzle is ready and which consists of a sealing element sealingly seated on the nozzle mouth and a triggering element exerting a closing force on the latter, the response of which eliminates the closing force on the closing element and which immediately and completely releases the nozzle mouth for the exit of the extinguishing water jet.
- the closing element is provided with an ejecting device which, together with the propulsive force of the extinguishing water jet, leads away after the closing force ceases to exist, the ejecting device being releasably supported on parts of the same which are firmly connected to one another in the ready position of the sprinkler nozzle.
- DE 29 24 654 describes a sprinkler for automatic fire extinguishing systems, consisting of a housing enclosing the flow channel for the fire extinguishing agent, a frame formed from two arms formed on the housing, the one Distribution cap carries, a covering cap closing the flow channel and an assembly arranged between the two caps, which has a lever, a support strut with two laterally perforated tabs and a temperature monitor inserted between the tabs.
- a protruding clamping bracket is provided on the support strut, the longitudinally curved main section of which runs approximately parallel to the strut and which, when the sprinkler responds, strikes the frame and the distributor cap.
- the desired fine distribution of the extinguishing agent for example water
- the disadvantage of nozzles is that the attachment of the thermocouples explained above has the disadvantage of forming a spray shadow. Because a finer, mist-like distribution of the extinguishing agent should normally be achieved with nozzles, this has an effect
- the disadvantage is so strong that up to now nozzles have mainly been used in open systems. This means that the extinguishing system is not triggered by a thermocouple on the nozzle itself, but by auxiliary devices and / or systems.
- the present invention has as its object to improve a heat-responsive closure for sprinklers and nozzles for stationary fire extinguishing systems of the type mentioned in such a way that they retain pressurized extinguishing agent and immediately, completely and when a critical, predetermined nominal temperature of the room is reached opens without affecting the spray pattern and thus reliably, unhindered and imperatively initiates the extinguishing function.
- FIG. 4 top view of A - A on a closure with multiple nozzle
- FIG. 7 section through a closure with a sealing element
- the devices on which the invention is based are suitable for use with all possible extinguishing agents, such as water, chemicals and gases.
- a heat-responsive closure for sprinklers and and nozzles is shown in section in Fig. 1.
- the nozzle body 2 can be seen with a supply for extinguishing agent through the inlet channel 12, the outlet channel 11 and the outlet opening 10.
- the outlet channel is adapted and designed to the extinguishing agent in such a way that the desired distribution of the extinguishing agent is achieved. All shapes and combinations of inlet channels 12, outlet channels 11 and outlet openings 10 which are customary for the atomization of liquids and liquid-gas mixtures and for the distribution of gases can be used.
- the nozzle body 2 is firmly soldered or glued to a cover plate 20 by means of a melt trigger 5.
- the shape of the nozzle body 2 and the cover plate 20, ie the shape of the surface 30 which is visible to the viewer when installed, can be of any type (FIG. 5).
- the flat end of the nozzle body 2 shown in FIGS. 1 to 4 in the region of the outlet opening 10 is shown in this way only for the sake of simplicity.
- the shape of the end face of the nozzle body 2 is normally the same as the shape of the surface facing it and connected to it by melt trigger 5 Cover plate 20 so that the two parts can be tightly and firmly connected by the hot melt adhesive 5 (Fig 5).
- the surface of the cover plate 20 can be designed accordingly Design element used and adapted to the ceiling structure.
- Nozzles that are constantly under pressure and in contact with the extinguishing medium tend to cake. If the extinguishing agent is water, severe calcifications are often found. Such calcifications of the channels are undesirable and are a hindrance to ensuring the function of the nozzles, since they entail a significant deterioration in the function of the nozzle. After a particularly long time, the deposit in the form of a lime plug can become so noticeable that the nozzle no longer lets any extinguishing agent through. In order to counter this danger, the outlet channel 11 and the outlet opening 10 are provided with a pin 21 in the closure which reacts to heat according to the invention (FIG. 2).
- Such a pin 21 can be made from sealing compound, plastic / elastic material with suitable sliding properties (FIGS. 2, 5 and 6) or from a solid material, for example steel (FIGS. 7 to 10). If a solid material is used, a sealing element 23 (FIGS. 7 to 10) must be provided.
- the pin 21 is supported on the cover plate 20, which is firmly connected to the nozzle body 2 when it is ready, and follows the contours of the outlet channel 11 and the outlet opening 10 over a length L (FIG. 2).
- the cover plate 20 is connected to the nozzle body 2 by a defined melt trigger 5, optionally arranged in a ring in the figures, and sealing the nozzle.
- Solder or adhesives with a narrow melting range can serve as the melt trigger 5 of the type presented according to the invention. Whether solder or adhesive, this material must be solid at room temperature and one have good tensile strength and good adhesion properties with the materials of the nozzle body 2 and the cover plate 20.
- a material is used as the melt trigger 5, which has a clearly defined and as narrow a melting range as possible. Ideally, this melting range has a tolerance of + 0 to 3 ° C around the nominal temperature range. Depending on the application, material with a melting range can be used at nominal temperatures of 50 ° C to 350 ° C.
- the gap 22 between the nozzle body 2 and cover plate 20 should be minimal. It is chosen as large as necessary and as small as possible.
- the strength of the connection between the nozzle body 2 and the cover plate 20 and the properties of the melt release 5 determine the dimension of the gap 22. A gap of max. 0.001 to 1 mm.
- the force F which would be necessary to detach the cover plate 20 from the nozzle body 2 at room temperature must be at least one and a half times greater than the force f which is exerted on the cover plate 20 by the pressure of the extinguishing agent via the outlet opening 10 or via the pin 21 acts.
- the melting trigger 5 melts when the intended temperature occurs regardless of the original temperature of the environment to be monitored. As soon as a specified ambient temperature reaches the previously determined values, it can be assumed that there is a fire and the closure that reacts to heat opens. If the device is used for process monitoring, such as in a reactor whose space could no longer be controlled above a certain temperature, the triggering temperature can be up to 300 ° C. or more. In this case, an extinguishing liquid suitable for the particular application or a gas that stops the reaction is used.
- the melt trigger 5 melts when the critical temperature is reached, and as a result the cover plate 20 is no longer connected to the nozzle body 2. It would be conceivable that the melting process of the mass of the melting trigger 5 does not take place uniformly everywhere.
- the melt release connection between the nozzle body 2 and the cover plate 20 is arranged at some distance from the edge of the nozzle body 2 (FIGS. 1 to 5). It can be assumed that a region of the melting trigger 5 melts and releases the cover plate 20 on one side (FIG.
- the cover plate 20 is directly or via pin 21 under constant pressure of the extinguishing agent. If the melt release 5 no longer withstands this pressure, the cover plate 20 suddenly releases. This rapid process has the result that the cover plate 20 is released on one side with a certain speed and force.
- the resulting lever action (H> h) now brings about the effect that even parts of the melt release 5 that are not completely melted are torn off and become detached the cover plate 20 separates from the nozzle body 2 and the closure which responds to heat opens immediately, completely and without impairing the spray pattern.
- the nozzle now begins to release the extinguishing agent.
- the pressure present after opening a nozzle can be increased by appropriate means in order to achieve an even better water distribution.
- the spray mist is prepared in a nozzle by means of shaping the outlet channel 11, the outlet opening 10 and the upstream inlet channel 12, for example by means of built-in swirl bodies.
- the outlet duct 11 and outlet opening 10 must therefore be protected against contamination. It is possible that the solution presented above by means of pins 21 does not meet this requirement.
- FIG. 7 A device is therefore presented in FIG. 7, which seals by means of sealing element 23 in a cylindrical part of the outlet channel 11.
- a hard material such as steel or reinforced plastic is selected for the pin 21.
- the pressurized extinguishing agent only penetrates into the inlet channel 12 and is then retained by the sealing element 23 and pin 21.
- the seal 23 means that the extinguishing agent cannot get into the outlet channel 11 and the outlet opening 10, so that there are certainly no deposits which could interfere with the spraying.
- the pin 21 is pushed out by the extinguishing agent and the extinguishing agent can flow via the outlet channel and outlet opening. It is then shaped into the inlet channel 12, outlet channel 11 and outlet opening 11 during the flow in such a way that it forms a spray pattern or a spray mist of the desired type.
- the heat-responsive closure for sprinklers and nozzles presented offers further advantages for the function and design of the closure.
- the outer dimension and shape of the cover plate 20 can, as shown in FIG. 8, be larger and different than the outer shape or the diameter of the nozzle body 2. This results in a larger area for the function, which is acted upon by the ambient temperature and thereby the triggering of the heat-responsive closure makes it more reliable and safer.
- this arrangement offers the possibility of neatly accommodating and closing such a closure by means of a cover in a blanket, in order to be able to adapt the closure of the blanket in terms of design as already described.
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Nozzles (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003233740A AU2003233740A1 (en) | 2002-06-12 | 2003-06-03 | Closure, which reacts to heat, for sprinklers and nozzles |
EP03727110A EP1515780A1 (de) | 2002-06-12 | 2003-06-03 | Auf wärme reagierender verschluss für sprinkler und düsen |
US10/518,944 US20050252665A1 (en) | 2002-06-12 | 2003-06-03 | Closure, which reacts to heat, for sprinklers and nozzles |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH1004/02 | 2002-06-12 | ||
CH01004/02A CH697817B1 (de) | 2002-06-12 | 2002-06-12 | Auf Wärme reagierender Verschluss einer Düse an einem Netz für Löschmittel. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003105963A1 true WO2003105963A1 (de) | 2003-12-24 |
Family
ID=29721340
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2003/000349 WO2003105963A1 (de) | 2002-06-12 | 2003-06-03 | Auf wärme reagierender verschluss für sprinkler und düsen |
Country Status (6)
Country | Link |
---|---|
US (1) | US20050252665A1 (de) |
EP (1) | EP1515780A1 (de) |
CN (1) | CN1668360A (de) |
AU (1) | AU2003233740A1 (de) |
CH (1) | CH697817B1 (de) |
WO (1) | WO2003105963A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005001717A1 (de) * | 2005-01-13 | 2006-07-27 | Höhne, Robert | Dralldüse für Brandbekämpfungsanlagen und Sprühdüse mit Auslösevorrichtung |
EP1752194A1 (de) * | 2005-08-10 | 2007-02-14 | Fabio Bruno Candito | Düse für Löscheinrichtungen und dergleichen |
US8607887B2 (en) | 2006-07-01 | 2013-12-17 | Peter Kammer | Closure for sprinklers and nozzles having heat tripping device |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10124197B2 (en) * | 2012-08-31 | 2018-11-13 | TiNi Allot Company | Fire sprinkler valve actuator |
US11040230B2 (en) * | 2012-08-31 | 2021-06-22 | Tini Alloy Company | Fire sprinkler valve actuator |
JP6208324B2 (ja) * | 2014-03-07 | 2017-10-04 | 千住スプリンクラー株式会社 | スプリンクラーヘッドカバー |
CN104801000A (zh) * | 2015-05-08 | 2015-07-29 | 施建明 | 一种无电自启动消防灭火系统 |
EP3607999A1 (de) | 2018-08-09 | 2020-02-12 | Peter Kammer | Verschluss für sprinkler und düsen mit wärmeauslösung |
US11918838B2 (en) * | 2019-10-08 | 2024-03-05 | Kidde Technologies, Inc. | Fire suppressant system for aircraft cargo container |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB314724A (en) * | 1928-09-13 | 1929-07-04 | Robert Arnold Blakeborough | Improvements in or relating to automatic sprinklers for fire-extinguishing purposes |
US3716103A (en) * | 1970-07-10 | 1973-02-13 | Senju Metal Industry Co | Sprinkler head |
US3834463A (en) | 1973-02-28 | 1974-09-10 | Itt | Sensitive sprinkler |
DE2703459A1 (de) | 1976-01-30 | 1977-08-04 | Johann Georg Mohler | Sprinklerduese |
DE2924654A1 (de) | 1979-06-19 | 1981-02-19 | Ato Inc | Sprinkler fuer selbsttaetige feuerloeschanlagen |
US4706759A (en) * | 1986-07-11 | 1987-11-17 | Grasseschi John J | Sprinkler assembly |
EP0505672A2 (de) | 1991-03-25 | 1992-09-30 | Grinnell Corporation | Feuerlöschsprinkleranlage |
US5299645A (en) * | 1993-01-06 | 1994-04-05 | Globe Fire Sprinkler Corporation | Fire extinguisher sprinkler construction |
US5505383A (en) | 1994-11-02 | 1996-04-09 | Grinnell Corporation | Fire protection nozzle |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE642255A (de) * | 1963-01-10 | |||
US3746098A (en) * | 1971-07-23 | 1973-07-17 | Gen Ind Inc | Automatic on-off sprinkler head system |
US3893513A (en) * | 1974-09-09 | 1975-07-08 | Factory Mutual Res Corp | Discharge head and fire protection system utilizing said head |
US3998273A (en) * | 1976-03-05 | 1976-12-21 | The Reliable Automatic Sprinkler Company, Inc. | Apparatus for use with a fire safety device |
US4465141A (en) * | 1981-10-13 | 1984-08-14 | U.S. Fire Control Corporation | Fire sprinkler apparatus |
US6554077B2 (en) * | 2001-04-12 | 2003-04-29 | The Reliable Automatic Sprinkler Co., Inc. | Quick response adjustable automatic sprinkler arrangements |
-
2002
- 2002-06-12 CH CH01004/02A patent/CH697817B1/de not_active IP Right Cessation
-
2003
- 2003-06-03 EP EP03727110A patent/EP1515780A1/de not_active Withdrawn
- 2003-06-03 AU AU2003233740A patent/AU2003233740A1/en not_active Abandoned
- 2003-06-03 WO PCT/CH2003/000349 patent/WO2003105963A1/de not_active Application Discontinuation
- 2003-06-03 CN CNA038172836A patent/CN1668360A/zh active Pending
- 2003-06-03 US US10/518,944 patent/US20050252665A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB314724A (en) * | 1928-09-13 | 1929-07-04 | Robert Arnold Blakeborough | Improvements in or relating to automatic sprinklers for fire-extinguishing purposes |
US3716103A (en) * | 1970-07-10 | 1973-02-13 | Senju Metal Industry Co | Sprinkler head |
US3834463A (en) | 1973-02-28 | 1974-09-10 | Itt | Sensitive sprinkler |
DE2703459A1 (de) | 1976-01-30 | 1977-08-04 | Johann Georg Mohler | Sprinklerduese |
DE2924654A1 (de) | 1979-06-19 | 1981-02-19 | Ato Inc | Sprinkler fuer selbsttaetige feuerloeschanlagen |
US4706759A (en) * | 1986-07-11 | 1987-11-17 | Grasseschi John J | Sprinkler assembly |
EP0505672A2 (de) | 1991-03-25 | 1992-09-30 | Grinnell Corporation | Feuerlöschsprinkleranlage |
US5299645A (en) * | 1993-01-06 | 1994-04-05 | Globe Fire Sprinkler Corporation | Fire extinguisher sprinkler construction |
US5505383A (en) | 1994-11-02 | 1996-04-09 | Grinnell Corporation | Fire protection nozzle |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005001717A1 (de) * | 2005-01-13 | 2006-07-27 | Höhne, Robert | Dralldüse für Brandbekämpfungsanlagen und Sprühdüse mit Auslösevorrichtung |
EP1752194A1 (de) * | 2005-08-10 | 2007-02-14 | Fabio Bruno Candito | Düse für Löscheinrichtungen und dergleichen |
WO2007017427A1 (en) * | 2005-08-10 | 2007-02-15 | Fincompany S.A. | Nozzle for extinguishing devices and the like |
US8028757B2 (en) | 2005-08-10 | 2011-10-04 | Firet Italia S.R.L. | Nozzle for extinguishing devices and the like |
AU2006278043B2 (en) * | 2005-08-10 | 2012-03-15 | Firet Italia S.R.L. | Nozzle for extinguishing devices and the like |
US8607887B2 (en) | 2006-07-01 | 2013-12-17 | Peter Kammer | Closure for sprinklers and nozzles having heat tripping device |
Also Published As
Publication number | Publication date |
---|---|
AU2003233740A1 (en) | 2003-12-31 |
EP1515780A1 (de) | 2005-03-23 |
US20050252665A1 (en) | 2005-11-17 |
CH697817B1 (de) | 2009-02-27 |
CN1668360A (zh) | 2005-09-14 |
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