EP0859649A1 - Löscheinrichtung und ventilblock für eine löscheinrichtung - Google Patents
Löscheinrichtung und ventilblock für eine löscheinrichtungInfo
- Publication number
- EP0859649A1 EP0859649A1 EP97932836A EP97932836A EP0859649A1 EP 0859649 A1 EP0859649 A1 EP 0859649A1 EP 97932836 A EP97932836 A EP 97932836A EP 97932836 A EP97932836 A EP 97932836A EP 0859649 A1 EP0859649 A1 EP 0859649A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extinguishing
- extinguishing agent
- container
- outlet nozzle
- line
- 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
- A62C35/00—Permanently-installed equipment
- A62C35/58—Pipe-line systems
- A62C35/68—Details, e.g. of pipes or valve systems
Definitions
- the invention relates to an extinguishing device and a valve block for an extinguishing device.
- Extinguishing devices are known from practice which are designed as spark extinguishing systems for lines carrying dust gas.
- extinguishing agent lines which may have branches, lead from a respective extinguishing agent reservoir to at least one extinguishing point.
- extinguishing agent nozzles at the extinguishing points, which are fed from the extinguishing agent line and generate a fine spray mist to extinguish sparks.
- the supply of extinguishing agents in particular the supply of extinguishing water, is controlled via magnetic valves.
- the solenoid valves are connected to a control device in which signals supplied by spark detectors are evaluated and control signals for the solenoid valves are generated on the basis of the evaluation results.
- the protection against dust explosions which can be caused by undetected sparks with such an extinguishing device depends crucially not only on the fact that sparks are reliably detected, but also on the fact that spark is extinguished immediately after the detection of sparks.
- the object of the invention is to provide an extinguishing device which has a short reaction time until the fire extinguishing spark.
- an extinguishing agent container is provided in the area of the extinguishing agent outlet nozzle, from which extinguishing agent flows into the extinguishing agent line in the event of a pressure drop.
- a drop in pressure which prevents an effective formation of a spray, occurs in particular if extinguishing agent emerges from the extinguishing agent outlet nozzle at the beginning of the extinguishing process without sufficient extinguishing agent flowing through the extinguishing agent line.
- This phenomenon caused by the inertia of the extinguishing agent in the extinguishing agent line is compensated for in that extinguishing agent is supplied from the extinguishing agent container in the area of the extinguishing agent outlet nozzle, so that the time between the first outlet of extinguishing agent from the extinguishing agent outlet nozzle and the complete formation of a spray mist is considerably reduced .
- the reaction time of the extinguishing device becomes independent of the length of the extinguishing agent lines and their cross-section.
- the extinguishing agent container is preferably designed as a compensating container. This makes it possible to refill the extinguishing agent container via the extinguishing agent line after the completion of an extinguishing process, so that separate filling lines and additional work processes caused by filling are dispensed with can.
- the extinguishing agent container is simply filled with the extinguishing agent transported via the extinguishing agent line as soon as the pressure in the extinguishing agent line 14 is sufficient, and then compensates for an extinguishing agent requirement at the start of a new extinguishing process.
- a particularly simple configuration of the extinguishing agent container is obtained if the expansion container has a pressure accumulator.
- This pressure accumulator which preferably has a cell filled with compressed gas with a flexible membrane, allows a particularly reliable supply of extinguishing agent, which can be supplied without great expenditure on equipment, with little technical upheaval.
- the extinguishing agent is immediately available through the pressure accumulator, without first having to activate any systems or devices. Since the energy stored in the pressure accumulator for supplying extinguishing agent can be regenerated again and again via the extinguishing agent line, the extinguishing device is also very low-maintenance and suitable for a large number of recurring extinguishing processes.
- the extinguishing agent container can be designed as a passage container. Such a design is advantageous from a fluidic point of view, since as a result both the extinguishing agent from the passage container and the line from the extinguishing agent can be fed to the valve arrangements without being deflected by bends, elbows or T-pieces.
- the reaction time can also be shortened by directly attaching the extinguishing agent outlet nozzle to the valve arrangement or by integrating the extinguishing agent nozzle into the valve arrangement. This measure is particularly advantageous if the extinguishing agent container is also directly connected to the tilan Aunt is connected. By minimizing the pipeline route together with the provision of extinguishing agent near the extinguishing point, a particularly short response time is achieved.
- the extinguishing device can be designed in the manner of a sprinkler system with extinguishing agent outlet nozzles that react to heat or pressure and are designed for single use only.
- the extinguishing device is preferably designed as a spark extinguishing system for lines or containers carrying dust gas and is provided with valve arrangements which are arranged in the region of the individual extinguishing agent outlet nozzles and control the extinguishing agent outlet from the extinguishing agent outlet nozzle. If these valve arrangements are remotely controlled, extremely short reaction times can be achieved in cooperation with spark detectors and a control device. This applies in particular if the valve arrangements are solenoid valve arrangements.
- FIG. 1 shows a section of a particularly preferred first embodiment of an extinguishing device according to the invention, which as
- Fig. 2 shows a portion of an extinguishing device according to the invention according to a second embodiment
- Fig. 3 shows a portion of an extinguishing device according to the invention according to a third embodiment.
- the extinguishing device 12 according to the first embodiment 14 has an extinguishing agent line 14 which ends at an extinguishing agent outlet nozzle 16.
- a solenoid valve 18 is arranged upstream of the extinguishing agent outlet nozzle 16 as the extinguishing water valve and is controlled by a control device (not shown) connected to spark detectors via a control line (not shown).
- the extinguishing device 12 has an extinguishing agent container 20 upstream of each solenoid valve 18, which is connected to the extinguishing agent line 14 via a T-piece 22.
- a dirt trap 24 is provided upstream of the T-piece 22 in the extinguishing agent line 14, which has a sieve element which can be cleaned by means of a inspection opening which can be closed with a cap 26.
- the extinguishing agent container 20 provided in the extinguishing device 12 has a jacket 30 deep-drawn from sheet steel with an integrally molded bottom 32.
- a cover 34 is provided, which is detachably connected to the jacket 30 and is connected to a connecting flange 38 via a neck piece 36.
- the extinguishing agent container 20 is connected to the T-piece 22 via the connecting flange 38 and a connecting pipe 40.
- a flexible, pressure-resistant bladder 42 made of rubber-like material, which is filled with a compressed gas 44 and forms a compressed gas store.
- the compressed gas 44 is preferably air which can be supplied via a valve 46 which extends through the bottom 32 of the extinguishing agent container 20.
- the bladder 42 lies in areas in the extinguishing agent container 20 on its inner walls and acts directly on the extinguishing water, provided that it is in the extinguishing device 12.
- the length of extinguishing agent lines 14 carrying extinguishing water is generally more than 50 m. Assuming a line diameter of 50 mm (2 inches) and the usual pipe roughness and pipe routing, extinguishing devices according to the state of the art take about 160 ms until a flow pressure of 6 bar is reached at the extinguishing agent outlet nozzle.
- the solenoid valve 18 opens on the basis of the signals supplied by the control device.
- the reaction time that elapses before the solenoid valve opens depends only on the processing speed of the electronics and the performance data of the solenoid valve.
- the impressed line pressure of about 7 bar from the extinguishing agent reservoir which is preferably a pressure booster system, is initially not yet available at the extinguishing agent outlet nozzle 16, since the extinguishing water line 14 in the extinguishing agent must first be accelerated.
- extinguishing water flows through the T-piece 22 into the extinguishing agent line due to the action of the compressed gas 44 in the bladder 42. Since only a small amount of water, preferably only 2 to 3 liters, has to be accelerated by the compressed gas 44 in the bladder 42, extinguishing water 16 is present shortly after the solenoid valve 18 opens at the extinguishing agent outlet nozzle under the pressure supplied by the bladder 42.
- the arrangement of the extinguishing agent container 20 considerably reduces the time required to reach an effective extinguishing water pressure from opening the valve. During trials, the time could be reduced considerably.
- the section shown in FIG. 2 belongs to an extinguishing device 112, which differs from the extinguishing device 12 according to the first embodiment only in terms of the extinguishing agent container 120. Parts corresponding to parts according to the first embodiment are therefore provided with reference numerals which are increased by 100. Unless otherwise specified, the construction of the parts according to the second embodiment corresponds to that of the parts of the first embodiment. Reference is made to the corresponding description.
- the extinguishing agent container 120 is designed as a passage container and is installed directly without T-pieces in the extinguishing agent line 114 such that the extinguishing agent can flow through it.
- a pressure-resistant bubble provides pressure energy at the beginning of each extinguishing process.
- the extinguishing agent container 120 is arranged in alignment with the direction of flow of the solenoid valve 118 and, moreover, is arranged directly on the solenoid valve 118 via a double nipple 150 provided only as an adapter. It would be advantageous to connect the solenoid valve 118 and the extinguishing agent container 120 even without a double nipple.
- the extinguishing device according to the third embodiment differs from the extinguishing device according to the first embodiment only with regard to the design of the solenoid valve 218 and the arrangement of the extinguishing agent container 220. Parts which correspond to parts of the first embodiment are therefore provided with reference numerals which are around 200 compared to the reference numerals of the first embodiment are increased. Reference is made to the corresponding description, with particular reference being made to the fact that the nere structure of the extinguishing agent container 220 corresponds to that of the extinguishing agent container 20.
- the solenoid valve 218 has a valve block with three connections, the connection 260 for the extinguishing agent container 220 being aligned with the connection 262 for the extinguishing agent outlet nozzle 216.
- the extinguishing agent outlet nozzle 216 is arranged directly on the solenoid valve 218, so that only small spaces have to be filled by the extinguishing agent before an effective extinguishing mist is built up after the start of the extinguishing process.
- a third connection 264 is used for connection to the extinguishing agent line 214.
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)
- Vehicle Waterproofing, Decoration, And Sanitation Devices (AREA)
- Flow Control (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29612431U | 1996-07-17 | ||
DE29612431U DE29612431U1 (de) | 1996-07-17 | 1996-07-17 | Löscheinrichtung |
PCT/EP1997/003823 WO1998003227A1 (de) | 1996-07-17 | 1997-07-17 | Löscheinrichtung und ventilblock für eine löscheinrichtung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0859649A1 true EP0859649A1 (de) | 1998-08-26 |
EP0859649B1 EP0859649B1 (de) | 2003-06-04 |
Family
ID=8026616
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP97932836A Revoked EP0859649B1 (de) | 1996-07-17 | 1997-07-17 | Löscheinrichtung und ventilblock für eine löscheinrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US6119785A (de) |
EP (1) | EP0859649B1 (de) |
DE (2) | DE29612431U1 (de) |
WO (1) | WO1998003227A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6302146B1 (en) * | 1999-01-22 | 2001-10-16 | Agf Manufacturing, Inc. | Valve and arrangement for fire suppression system |
DE10135483A1 (de) | 2001-07-20 | 2003-01-30 | Philip Morris Prod | Verfahren und Einrichtung zur Beseitigung von Tabak-Brandstrukturen aus expandiertem Tabak |
DE20218136U1 (de) * | 2002-11-21 | 2003-03-06 | Minimax Gmbh, 23843 Bad Oldesloe | Funkenlöschanlage für bewegte staubförmige Partikel |
US9050430B2 (en) * | 2008-06-24 | 2015-06-09 | John Mathews | Auscultation interface |
DE102012017534B4 (de) | 2012-09-05 | 2014-11-06 | Entstaubungsgeräte Pulsnitz GmbH | Absaugvorrichtung |
DE202012008456U1 (de) | 2012-09-05 | 2012-09-28 | Entstaubungsgeräte Pulsnitz GmbH | Absaugvorrichtung |
CN105498117A (zh) * | 2016-01-20 | 2016-04-20 | 王玉伟 | 一种隔离消防灭火装置 |
US9999792B2 (en) * | 2016-09-01 | 2018-06-19 | South-Tek Systems, LLC | Wet pipe fire protection sprinkler system dual air vent with water retention and return |
CN108175984A (zh) * | 2018-02-08 | 2018-06-19 | 海宁欧康电子科技有限公司 | 一种高强度防冲击的火花熄灭装置 |
CN110270026A (zh) * | 2018-03-18 | 2019-09-24 | 宋文智 | 一种管道火花熄灭喷淋装置 |
CN109045540A (zh) * | 2018-06-11 | 2018-12-21 | 广州市景彤机电设备有限公司 | 一种管道智能探测灭火系统及方法 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3548949A (en) * | 1968-08-19 | 1970-12-22 | Jefferson Chem Co Inc | Method for extinguishing fire |
US3614987A (en) * | 1969-03-24 | 1971-10-26 | Factory Mutual Res Corp | Fire protection system for variable pressure chambers |
US3671208A (en) * | 1970-10-09 | 1972-06-20 | Wayne G Medsker | Fluid mixing apparatus |
US3714988A (en) * | 1971-03-18 | 1973-02-06 | Factory Mutual Res Corp | Additive injection system |
DE2916086C3 (de) * | 1979-04-20 | 1981-10-22 | Preussag Ag Feuerschutz, 2060 Bad Oldesloe | Einrichtung zum Melden von optischen Feuererscheinungen, insbesondere Funken |
US4889189A (en) * | 1983-10-28 | 1989-12-26 | Rozniecki Edward J | Fire suppressant mechanism and method for sizing same |
SE455471B (sv) * | 1985-11-29 | 1988-07-18 | Firefly Ab | Anordning for att forhindra risk for brand pa grund av brinnande eller glodande partiklar i en rorledning |
US4722358A (en) * | 1986-03-12 | 1988-02-02 | Wormald U.S., Inc. | Pressure equalizing valve |
US4855718A (en) * | 1987-07-28 | 1989-08-08 | Firetek Corporation | Fire detection system employing at least one optical waveguide |
CA1295585C (en) * | 1988-08-25 | 1992-02-11 | Chemonics Industries, Inc. | Apparatus for applying fire-fighting chemicals |
DE9001008U1 (de) * | 1990-01-30 | 1990-04-05 | Fagus-Grecon Greten GmbH & Co KG, 3220 Alfeld | Vorrichtung zur Erkennung von Funken in einem durchströmten Raum |
US5188184A (en) * | 1990-09-18 | 1993-02-23 | Noelene M. Northill | Fire suppression systems |
FI930663A0 (fi) * | 1993-02-15 | 1993-02-15 | Goeran Sundholm | Ventil foer eldslaeckningsanlaeggning |
SE501123C2 (sv) * | 1993-10-08 | 1994-11-21 | Firefly Ab | Detektorarrangemang |
SE9303305L (sv) * | 1993-10-08 | 1994-11-21 | Firefly Ab | Preventivt skyddssystem |
-
1996
- 1996-07-17 DE DE29612431U patent/DE29612431U1/de not_active Expired - Lifetime
-
1997
- 1997-07-17 WO PCT/EP1997/003823 patent/WO1998003227A1/de not_active Application Discontinuation
- 1997-07-17 DE DE59710222T patent/DE59710222D1/de not_active Expired - Fee Related
- 1997-07-17 US US09/043,335 patent/US6119785A/en not_active Expired - Lifetime
- 1997-07-17 EP EP97932836A patent/EP0859649B1/de not_active Revoked
Non-Patent Citations (1)
Title |
---|
See references of WO9803227A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE59710222D1 (de) | 2003-07-10 |
EP0859649B1 (de) | 2003-06-04 |
US6119785A (en) | 2000-09-19 |
DE29612431U1 (de) | 1997-11-20 |
WO1998003227A1 (de) | 1998-01-29 |
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