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WO2004086329A1 - Dispositif pour determiner des ecoulements de milieux gazeux - Google Patents

Dispositif pour determiner des ecoulements de milieux gazeux Download PDF

Info

Publication number
WO2004086329A1
WO2004086329A1 PCT/SE2004/000377 SE2004000377W WO2004086329A1 WO 2004086329 A1 WO2004086329 A1 WO 2004086329A1 SE 2004000377 W SE2004000377 W SE 2004000377W WO 2004086329 A1 WO2004086329 A1 WO 2004086329A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
smoke
sleeve
per
layers
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.)
Ceased
Application number
PCT/SE2004/000377
Other languages
English (en)
Inventor
Torbjörn FREDRIKZON
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bjornax AB
Original Assignee
Bjornax AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bjornax AB filed Critical Bjornax AB
Priority to EP04721409A priority Critical patent/EP1606782B1/fr
Priority to DE602004011658T priority patent/DE602004011658T2/de
Publication of WO2004086329A1 publication Critical patent/WO2004086329A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06D—MEANS FOR GENERATING SMOKE OR MIST; GAS-ATTACK COMPOSITIONS; GENERATION OF GAS FOR BLASTING OR PROPULSION (CHEMICAL PART)
    • C06D3/00—Generation of smoke or mist (chemical part)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes

Definitions

  • the purpose of the present invention is to determine the direction of flows of gaseous media and, additionally, leakages involving flows of gaseous media.
  • Pyrotechnic devices have previously been used for this purpose. When ignited, such devices generate smoke that is then acted upon by the gaseous flows being investigated.
  • the disadvantage with these known devices is that, once they have been ignited, they cannot be readily turned off when the gaseous flows have been determined. Instead, they must be extinguished with water, this being another disadvantage.
  • a pyrotechnic device cannot be used several times.
  • a pyrotechnic device can also include additives that, for example, produce olfactory effects. Similarly, a different type of additive can be used to produce a flame that gives off lights of differing colours.
  • the present invention solves the above problems by replacing the smoke- generating pyrotechnic composition with a long body (preferably having the character of a rope or of a thread), which, when lit, can generate smoke.
  • a rope, thread or other body is used, different cross sections of differing relative dimensions are possible, for example, round, square, rectangular or elliptical.
  • the present device comprises a core around which there are a number of peripheral layers that have different properties.
  • the core can have one or more such layers.
  • one layer can be smoke generating
  • another can be aroma generating and another can give off a light or smoke of a chosen colour.
  • Cotton wool is a suitable material for the core. The percentage of cotton wool used in the co * re can vary.
  • the cotton wool in the core may suitably be woven or spun.
  • the core can also be made of a compacted powder, for example, carbon powder or other suitable material.
  • the body shall have a layer that, on combustion, generates smoke.
  • the most suitable substances for this are stearin and paraffin. Of course, other substances having the same properties as these two can also be used.
  • Said layer of stearin or paraffin shall be selected so that the long body is either rigid or flexible.
  • Said long body, which is to generate smoke has two ends and it is advantageous that the long body is combined with a sleeve that can be displaced along the body. If the sleeve is located at one end of the long body, its position in relation to said body can be adjusted so that the required length of the long body protrudes from one end of the sleeve.
  • the protruding end can then be ignited to give a flame that burns continuously as long as the sleeve is displaced to leave a part of the long body protruding therefrom.
  • the gaseous flows that are to be determined have an effect on the flame and the direction of the flows is thus determined. Said flame can be blown out and the protruding end will then glow and generate smoke. This can also be used in the determination of gaseous flows. When determination has finished, it is desirable that smoke generation ceases. This is done by locating said sleeve over the smoking end so that the long body is totally extinguished.
  • the long body can then be re-used by once again causing it to protrude from one end of the sleeve and igniting the protruding end.
  • the sleeve itself can have a hole/opening through which the long body is visible. Through this opening, the long body can be manually acted upon to alter its position in relation to the sleeve.
  • such a unit can be used for determining gaseous flows. It can also be used for determining whether fire alarms and the suchlike are working. Yet a further possibility is to have a long body and sleeve unit that generates lights or aroma alone.
  • Figure 1 shows a long cylindrical body comprising an inner core and two outer layers
  • Figure 2 shows said long cylindrical body generating smoke
  • Figure 3 shows said long cylindrical body working in conjunction with a sleeve; one end of the body protrudes from the sleeve and has been ignited by, for example, a match
  • Figure 4 shows the device as per figure 3, but the flame has here been extinguished to give way to smoke
  • Figure 5 shows the long body withdrawn into the sleeve so that the free end of the long body is totally extinguished.
  • Figure 1 shows a long cylindrical body (1) that has a cylindrical core (2), which is to have the characteristic of being able to burn with a minimal supply of oxygen.
  • a cylindrical core (2) Around the cylindrical core (2), there are two layers (3 and 4). These can be produced by, for example, immersion in various substances in a liquid form. These substances can have the character of being smoke generating on combustion. In this case, paraffin, stearin or other substance with similar properties (i.e. smoke generating on combustion) is suitable.
  • the layers can be applied in such a way that the cylindrical core (2) will be either flexible or rigid. The degree of flexibility can vary. One layer can even be made of materials that, on combustion, generate lights of varying colours. Similarly, layers can be such that they generate various aromas.
  • a flame is produced.
  • This flame can be used to show the direction of gaseous flows. Furthermore, if so desired, the flame can give off an aroma or a light of a particular colour. When said flame is blown out, the end will glow and generate smoke (6).
  • the glowing end of the long body (1) can be totally extinguished by putting a cap over it or by withdrawing the body into a sleeve. This latter causes said body to extinguish of its own accord.
  • the long cylindrical body is shown working in conjunction with a sleeve (7) made of an incombustible material.
  • the sleeve has an opening (8), through which the long cylindrical body (1) is revealed. Through this opening, a finger can be used to adjust the position of the cylindrical body (1) in relation to the sleeve (7).
  • the long cylindrical body (1) has a protruding end that has been ignited to give a flame (5).
  • a match, or other suitable device, can be used for ignition. If the flame is not required, it can be blown out and the long cylindrical unit then generates smoke.
  • the free end of the long cylindrical body can, as shown in figure 5, be totally extinguished by withdrawing ⁇ it completely into the sleeve.
  • a sleeve (7) and a long cylindrical body (1) has created a device that can be ignited, can generate smoke and, on completion of a task, can be immediately extinguished by withdrawing the free, protruding end of the long cylindrical body (1 ) into the sleeve (7).
  • the present invention is thus a device that is easy to handle and simple to position/carry.
  • the device can be easily carried in a breast pocket. It can thus be readily used to determine gaseous flows and test fire alarms and similar units.
  • the device can also be used to create a pleasant atmosphere by, for example, producing lights of different colours and giving off various aromas.
  • the accompanying sleeve ought to be made of a rigid, incombustible material. Metals and organic compounds are both possible here.
  • the previously mentioned sleeve can, of course, be replaced by any unit whatsoever capable of bringing about displacement between the long cylindrical body (1) and the surrounding unit.
  • the substance when the core is immersed in a liquid substance, the substance could permeate the core itself. Consequently, as the liquid substance can be a mixture of substances, each accounting for an individual property of the various layers, one quick immersion could be enough.
  • the long body and its surrounding layers are so arranged that neither the flame nor the smoke is turbulent.
  • the major advantages of the present invention are that it is simple to manufacture and the waste products are, in themselves, environment-friendly.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Plant Pathology (AREA)
  • Pest Control & Pesticides (AREA)
  • Botany (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Cosmetics (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)

Abstract

Un générateur de fumée permet de déterminer des écoulements de milieu gazeux. Ces générateurs de fumée d'une composition pyrotechnique sont actuellement disponibles. Il est souhaitable de pouvoir arrêter le générateur de fumée lorsqu'il a rempli la fonction pour laquelle il est utilisé. Les générateurs de fumée de l'état de la technique nécessitent de l'eau, ce qui constitue un désavantage. L'invention permet de supprimer ce désavantage en faisant appel à un filetage relativement épais pouvant être allumé à une de ses extrémités. Lors de l'allumage, une flamme se forme. Lorsque la flamme grandit, de la fumée est générée. Lorsque le filetage fonctionne conjointement à un manchon (marqué d'un </= 7 >/= au niveau des chiffres d'accompagnement), la génération de fumée peut s'arrêter en retirant complètement l'extrémité de génération de fumée pour l'insérer dans le manchon, ce qui permet une extinction totale de ladite extrémité.
PCT/SE2004/000377 2003-03-24 2004-03-17 Dispositif pour determiner des ecoulements de milieux gazeux Ceased WO2004086329A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP04721409A EP1606782B1 (fr) 2003-03-24 2004-03-17 Dispositif pour déterminer des flux gazeux
DE602004011658T DE602004011658T2 (de) 2003-03-24 2004-03-17 Einrichtung zur bestimmung von strömungen gasförmiger medien

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0300779-6 2003-03-24
SE0300779A SE527396C2 (sv) 2003-03-24 2003-03-24 Anordning för att fastställa gasformiga mediumströmningar

Publications (1)

Publication Number Publication Date
WO2004086329A1 true WO2004086329A1 (fr) 2004-10-07

Family

ID=20290740

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE2004/000377 Ceased WO2004086329A1 (fr) 2003-03-24 2004-03-17 Dispositif pour determiner des ecoulements de milieux gazeux

Country Status (5)

Country Link
EP (1) EP1606782B1 (fr)
AT (1) ATE385493T1 (fr)
DE (1) DE602004011658T2 (fr)
SE (1) SE527396C2 (fr)
WO (1) WO2004086329A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008111895A1 (fr) * 2007-03-12 2008-09-18 Björnax AB Appareil de génération de gaz et/ou de fumée
WO2011012604A1 (fr) * 2009-07-29 2011-02-03 Centre Scientifique Et Technique Du Batiment Composition pour fournir des fumees destinees a reproduire celles generees par un incendie reel, procede pour fabriquer une telle composition et recipient pour contenir une telle composition

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4959157A (fr) * 1972-10-11 1974-06-08
US3954059A (en) * 1974-08-30 1976-05-04 Olin Corporation Pyrotechnic signal with collapsible handle
JPS5171794A (ja) * 1974-12-19 1976-06-21 Hosoya Fireworks Hatsuento
US5361623A (en) * 1990-07-30 1994-11-08 Leon Cooper Delivery system for smoke detector testing spray formulation
US5914119A (en) * 1994-06-14 1999-06-22 Dawson; Richard A. Process and product for attracting animals and covering human scent
US5919516A (en) * 1997-12-04 1999-07-06 Hsieh; Chen-Hui Process of making joss-sticks
US6198399B1 (en) * 2000-03-09 2001-03-06 Martin P. Mattis Smoke detector test device and method for manufacture

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4959157A (fr) * 1972-10-11 1974-06-08
US3954059A (en) * 1974-08-30 1976-05-04 Olin Corporation Pyrotechnic signal with collapsible handle
JPS5171794A (ja) * 1974-12-19 1976-06-21 Hosoya Fireworks Hatsuento
US5361623A (en) * 1990-07-30 1994-11-08 Leon Cooper Delivery system for smoke detector testing spray formulation
US5914119A (en) * 1994-06-14 1999-06-22 Dawson; Richard A. Process and product for attracting animals and covering human scent
US5919516A (en) * 1997-12-04 1999-07-06 Hsieh; Chen-Hui Process of making joss-sticks
US6198399B1 (en) * 2000-03-09 2001-03-06 Martin P. Mattis Smoke detector test device and method for manufacture

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 197509, Derwent World Patents Index; Class A95, AN 1975-14919W, XP002979280 *
DATABASE WPI Week 197632, Derwent World Patents Index; Class G04, AN 1976-60442X, XP002979281 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008111895A1 (fr) * 2007-03-12 2008-09-18 Björnax AB Appareil de génération de gaz et/ou de fumée
GB2459818A (en) * 2007-03-12 2009-11-11 Bjoernax Ab Apparatus for generating gas and/or smoke
WO2011012604A1 (fr) * 2009-07-29 2011-02-03 Centre Scientifique Et Technique Du Batiment Composition pour fournir des fumees destinees a reproduire celles generees par un incendie reel, procede pour fabriquer une telle composition et recipient pour contenir une telle composition
FR2948658A1 (fr) * 2009-07-29 2011-02-04 Ct Scient Tech Batiment Cstb Composition pour fournir des fumees destinee a tester les dispositifs de lutte contre l'incendie procede pour fabriquer une telle composition et recipient pour contenir une telle composition

Also Published As

Publication number Publication date
EP1606782B1 (fr) 2008-02-06
SE0300779L (sv) 2004-09-25
SE527396C2 (sv) 2006-02-28
SE0300779D0 (sv) 2003-03-24
EP1606782A1 (fr) 2005-12-21
ATE385493T1 (de) 2008-02-15
DE602004011658D1 (de) 2008-03-20
DE602004011658T2 (de) 2008-11-27

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