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WO2007042036A1 - Vanne pour utilisation dans les systemes d'extincteurs - Google Patents

Vanne pour utilisation dans les systemes d'extincteurs Download PDF

Info

Publication number
WO2007042036A1
WO2007042036A1 PCT/DK2006/000567 DK2006000567W WO2007042036A1 WO 2007042036 A1 WO2007042036 A1 WO 2007042036A1 DK 2006000567 W DK2006000567 W DK 2006000567W WO 2007042036 A1 WO2007042036 A1 WO 2007042036A1
Authority
WO
WIPO (PCT)
Prior art keywords
valve
valve body
nozzles
pressure
spring
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/DK2006/000567
Other languages
English (en)
Inventor
Carsten Palle
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.)
Cp Holding Af 2002 Aps
Original Assignee
Cp Holding Af 2002 Aps
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 Cp Holding Af 2002 Aps filed Critical Cp Holding Af 2002 Aps
Priority to EP06791455A priority Critical patent/EP1948325A1/fr
Publication of WO2007042036A1 publication Critical patent/WO2007042036A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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

Definitions

  • extinguishing systems which extinguish fires in pots, pans or deep fat fryers by carbon dioxide which is distributed over the scene of fire and thereby displaces the oxygen from the fire, which is extinguished thereby.
  • extinguishing liquid with potassium carbonate or potassium sulphate, which is distributed over the burning oil. When the liquid contacts the oil, saponification occurs on the surface of the oil, whereby the fire is choked.
  • the problem may be remedied by using pipes of a larger diameter, whereby the flow losses in the pipes are reduced, which, however, results in greater installation costs and an impaired architectural value. It has also been attempted to remedy the problem by using nozzles of different water resistance, but this method opens up the possibility of confusing nozzles and is therefore not allowed by many authorities.
  • the spring is a compression spring which engages the rear side of the piston or of the diaphragm.
  • the valve housing when the valve housing is disposed vertically, as is preferred, a central nozzle is achieved which is directed downwards from the valve housing.
  • the pipe may form a support for the spring which is positioned around the pipe.
  • the pipe need only protrude out through the bottom of the valve housing when the system is in operation. Therefore, as stated in claim 11 , the hole in the bottom of the valve housing may be closed by a plug, which is ejected from the pipe when the valve is moved downwards.
  • the nozzles are protected hereby, and the valve housings are closed outwardly when the system is at rest.
  • water flows from the supply pipe 2 through an inlet 3 having a filter 4 and an upper chamber 5 into a cavity 6 in the valve housing 1.
  • a further increase in pressure moves the valve body downwards, which thereby narrows the gap 11 , 12, as the water pressure affects a diaphragm 13 which is attached to the valve body and to the inner side 16 of the housing 1 , and on whose lower side the spring 8 acts, thereby compressing the spring.
  • the cavity 17 below the diaphragm 13 communicates with the atmosphere at the location indicated by the ref- erence numeral 19.
  • a state of equilibrium occurs, determined by the pressure and the spring force. If the pressure increases, the diaphragm is compressed by virtue of its large area, and the valve body closes the gap 11 more and thereby the area available to the water flowing therethrough. If the pressure decreases, the valve correspondingly opens the flow area.
  • the outflowing amount of water which depends on the pressure and the area which is available, remains substantially constant irrespective of any pressure variations and irrespective of the positions of the valve and the associated nozzles in the pressure system.
  • the spring tension may be changed by a finger screw 21 , 22 which presses on the lowest abutment 22 of the spring, whereby the position of equilibrium and the flowing amount of water may be adjusted.
  • Fig. 4 shows an embodiment where a nozzle 15d is also provided at the bottom of the valve housing.
  • the piston is provided with a pipe 28 to which the water flows through oblique bores 25 in the piston 7d.
  • the pipe 28 extends out through the bottom of the valve housing through guides 26, 27 and carries the nozzle 15d at its lowermost end.
  • a plug 29 is arranged at the bottom of the valve housing, said plug being adapted to be pushed out of the pipe when the valve body 7 moves downwards from the position of rest.

Landscapes

  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Safety Valves (AREA)

Abstract

L'invention concerne une vanne particulièrement adaptée pour une utilisation en relation avec les systèmes d'extincteurs dans un lieu où se trouvent des zones de cuisson et/ou des bacs à friture, l'invention étant dotée d'une pluralité de buses réparties sur la zone et produisant un brouillard d'eau. Les buses sont alimentées en eau à travers un système à haute pression. Pour empêcher les buses de fournir des quantités différentes de brouillard en raison des pertes de pression dans les lignes d'alimentation, chaque buse ou ensemble de buses est associé(e) à une vanne du type délivrant une quantité constante d'eau quelle que soit la pression dans le système - dite vanne à débit constant. La vanne selon l'invention est dotée d'un boîtier de vanne (1) avec un corps de vanne (7) qui coopère avec un passage rétréci (11), de telle sorte que le corps de vanne puisse plus ou moins limiter le débit de l'eau. Le corps de vanne est sollicité par ressort vers une position donnant le plus grand débit d'eau possible. Le corps de vanne (7) est également relié à un piston ou à un diaphragme (13) soumis à l'action de la pression du système et agissant sur le corps de vanne vers une position donnant une plus petite section d'écoulement. L'équilibre entre les deux effets se produit ainsi, donnant une plus grande section d'écoulement à basse pression et une plus petite section d'écoulement à haute pression. Par conséquent, la vanne délivrera sensiblement la même quantité d'eau quelle que soit la pression.
PCT/DK2006/000567 2005-10-10 2006-10-09 Vanne pour utilisation dans les systemes d'extincteurs Ceased WO2007042036A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP06791455A EP1948325A1 (fr) 2005-10-10 2006-10-09 Vanne pour utilisation dans les systemes d'extincteurs

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DKPA200501420 2005-10-10
DKPA200501420 2005-10-10
DK200501698A DK200501698A (da) 2005-10-10 2005-12-01 Anlæg til brandslukning, især til brug i området med friturekar, og ventil til brug i anlægget
DKPA200501698 2005-12-01

Publications (1)

Publication Number Publication Date
WO2007042036A1 true WO2007042036A1 (fr) 2007-04-19

Family

ID=37189906

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DK2006/000567 Ceased WO2007042036A1 (fr) 2005-10-10 2006-10-09 Vanne pour utilisation dans les systemes d'extincteurs

Country Status (3)

Country Link
EP (1) EP1948325A1 (fr)
DK (1) DK200501698A (fr)
WO (1) WO2007042036A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT13195U1 (de) * 2011-07-08 2013-08-15 Neumeister Hydraulik Gmbh Sicherheitssperrventil
CN104117173A (zh) * 2014-08-06 2014-10-29 北京惠利消防设备有限公司 闭式微水雾滴喷头及其加工方法
US9682262B2 (en) 2012-03-05 2017-06-20 Marioff Corporation Oy Water mist fire suppression sprinkler

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108815764A (zh) * 2018-06-05 2018-11-16 苏州海马消防设备制造有限公司 一种消防用喷水头装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568429A (en) * 1945-10-19 1951-09-18 Fog Nozzle Company Distributor head
US3684192A (en) * 1970-06-22 1972-08-15 Fire Task Force Innovations In Constant pressure, variable flow nozzle
US3948285A (en) * 1975-01-29 1976-04-06 Rain Bird Sprinkler Mfg. Corporation Pressure and flow regulation device
DE4236545C1 (de) * 1992-10-29 1994-01-27 Preussag Ag Minimax Löschdüse
US6089474A (en) * 1999-01-19 2000-07-18 Marino; Robert M. Hose nozzle apparatus and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2568429A (en) * 1945-10-19 1951-09-18 Fog Nozzle Company Distributor head
US3684192A (en) * 1970-06-22 1972-08-15 Fire Task Force Innovations In Constant pressure, variable flow nozzle
US3948285A (en) * 1975-01-29 1976-04-06 Rain Bird Sprinkler Mfg. Corporation Pressure and flow regulation device
DE4236545C1 (de) * 1992-10-29 1994-01-27 Preussag Ag Minimax Löschdüse
US6089474A (en) * 1999-01-19 2000-07-18 Marino; Robert M. Hose nozzle apparatus and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT13195U1 (de) * 2011-07-08 2013-08-15 Neumeister Hydraulik Gmbh Sicherheitssperrventil
US9682262B2 (en) 2012-03-05 2017-06-20 Marioff Corporation Oy Water mist fire suppression sprinkler
CN104117173A (zh) * 2014-08-06 2014-10-29 北京惠利消防设备有限公司 闭式微水雾滴喷头及其加工方法

Also Published As

Publication number Publication date
EP1948325A1 (fr) 2008-07-30
DK200501698A (da) 2006-10-02

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