EP1422675B1 - Dispositif pour découpler des installations chargés de poussières et avec risque d'explosion - Google Patents

Dispositif pour découpler des installations chargés de poussières et avec risque d'explosion Download PDF

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Publication number
EP1422675B1
EP1422675B1 EP20030010529 EP03010529A EP1422675B1 EP 1422675 B1 EP1422675 B1 EP 1422675B1 EP 20030010529 EP20030010529 EP 20030010529 EP 03010529 A EP03010529 A EP 03010529A EP 1422675 B1 EP1422675 B1 EP 1422675B1
Authority
EP
European Patent Office
Prior art keywords
explosion
decoupling
disposed
dust
window
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.)
Expired - Lifetime
Application number
EP20030010529
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German (de)
English (en)
Other versions
EP1422675A1 (fr
Inventor
Manfred Russwurm
Olaf Klischat
Thilo Lindau
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.)
Minimax GmbH and Co KG
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Minimax GmbH and Co KG
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Filing date
Publication date
Application filed by Minimax GmbH and Co KG filed Critical Minimax GmbH and Co KG
Publication of EP1422675A1 publication Critical patent/EP1422675A1/fr
Application granted granted Critical
Publication of EP1422675B1 publication Critical patent/EP1422675B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/12—Actuation by presence of radiation or particles, e.g. of infrared radiation or of ions
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62C—FIRE-FIGHTING
    • A62C3/00—Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/04—Fire prevention, containment or extinguishing specially adapted for particular objects or places for dust or loosely-baled or loosely-piled materials, e.g. in silos, in chimneys

Definitions

  • the invention relates to a device for decoupling dust-laden systems with risk of explosion, preferably the zone 20 to ATEX with respect to a zone with little or no risk of explosion according to the preamble of the first claim.
  • the invention is applicable everywhere where moving dust-like particles are present and there is a risk of explosion and from an area with low risk of explosion or danger of explosion observing these spaces is required.
  • the risk of explosion should preferably be understood as an explosion hazard according to ATEX 20.
  • the dust-like particles may be dust particles in pipes, transport equipment or cyclones of the chipboard industry, the textile industry, the chemical industry, the metalworking industry (recycling and milling industry), for example, in the crushing and suction of magnesium particles, in the furniture manufacturing, in the wood particles are sucked off or coal particles in aggregates of braunstein- or anthracite coal processing industry or in the pneumatic conveying of black powder.
  • the device for decoupling can be used for spark extinguishing systems for moving dust-like particles in systems with increased risk of explosion. Furthermore, the device can be used for flame monitoring, flow and temperature monitoring hazardous areas. If the condition of the dust-endangered area must be monitored in areas subject to dust hazards in dust-laden areas, there is a requirement that all units and devices in potentially explosive areas have the required safety approval for the potentially explosive area.
  • a condition monitoring sensor in an area with an explosion hazard according to ATEX 21 can not be used in an area with the ATEX 20 explosion level. The sensor should be sensors for spark, fire detection, temperature, flow or flow measurement.
  • spark extinguishing systems have been developed. These spark extinguishing systems are usually sensors that are coupled to a fire fighting center.
  • the fire detection sensors are inserted through a hole in, for example, a pipeline. If there are glowing sparks in the flow of the pipe, they are detected, trigger an electrical signal to the fire alarm panel, after which an extinguishing unit is activated in the pipe, which is arranged in the flow direction of the particles in the system further back and for a deletion of the particles in the delivery pipe provides.
  • Out DE 40 26 041 C2 discloses a device for detecting sparks in a space through which flows, wherein at least one optical waveguide opens into the space with a first end, wherein a second end of each optical fiber is opposite to a photoreceiver, which receives corresponding electrical signals when sparks occur.
  • DE 29 16 086 A describes a measuring device of a fire display device, in which one or more photocells are arranged, which respond at a specific light intensity, namely at a light intensity corresponding to a flame.
  • the device provides that are arranged on a tube measuring probes made of plastic, which lead through holes in the tube interior, so that a fire signal can be recorded.
  • US Pat. No. 4,855,118 describes a conveyor system with a wall behind which particles move in an air stream and a sensor for measuring-technical detection is arranged with an electronic detector. Also in the present case lead lines for detecting the measurement signal in the wall of the tube, so that a decoupling or gas and pressure-tight decoupling window are not arranged. Erasing units are not present in the device.
  • the solution of the invention provides a device for decoupling dust-laden systems with risk of explosion, preferably the zone 20 to ATEX against a zone with little or no risk of explosion in such a way that a decoupling window is disposed in the wall of the system, which is on the one hand the decoupling window, the moving particles are in the hazardous area, which has a different and usually higher explosion level and on the other side of the decoupling window, a sensor, such as a fire detection is arranged.
  • a registration device such as a fire detector, which is coupled to a fire panel, to which a deletion device is arranged, which triggers the deletion in the relevant unit.
  • An application of the device according to the invention provides z.
  • the decoupling window can be arranged for example in a tube inside which there is an increased explosion level, while outside the decoupling window and the pipe is no security-relevant space.
  • the decoupling window can be arranged either on round or rectangular pipes made of metal or steel or other materials or directly in a silo or collecting container. It is advantageous, the decoupling window on both sides to arrange a pipe. It must be connected to the walls of the pipe in a gas- and pressure-impermeable way. It is advantageous to arrange the decoupling window on both sides of the measuring points.
  • the decoupling window is advantageous to form as a ring encircling the conveyor tube. If an inspection flap is present in the pipes, the decoupling window can be incorporated instead of the inspection flap.
  • the decoupling window should be located in the pipeline or plant so as to be located in a location where a fire potential is created and in front of the location where an explosion potential exists.
  • the spark extinguishing system has a decoupling window in the direction of movement of the particles, which is arranged after the extinguishing unit. This can be used to detect whether the deletion is intense enough and, if necessary, a more intensive deletion is performed. Deise arrangement represents a further improvement to safety in hazardous installations of the type mentioned.
  • the fire detection device may be sensors that detect the entire range of the photon spectrum.
  • the fire detection can consist of a transmitter and a receiver.
  • the decoupling window must be able to pass the corresponding radiation of the sensor (receiver) or the transmitter well.
  • the sensor receiver
  • optical sensors are arranged as sensors and receivers. These can be level, monitoring, temperature, gas, density, dimension and color detection.
  • FIG. 1 shows a tube with pipe walls 1 made of steel, in the both sides of the decoupling window 4 have been used, which are gas and pressure impermeable, so that the system within the pipe walls 1 is independent of the system, which is located outside the pipe wall 1.
  • a pneumatic transport of rapidly flammable particles 2, 3 instead. These are dusts 3, which form an explosion potential in collecting containers 1, so that an ignition potential 2 must be extinguished absolutely before a storage container is reached. This presupposes that the ignition potential 2 is detected beforehand. It is intended to use spark detectors or recognition devices 5 which are not approved for the potentially explosive space inside the pipe wall 1.
  • the corresponding spark detector 5 are arranged behind the decoupling window 4, which consist of a sensor and a disc and which are connected to a fire alarm panel 6 by means of lines.
  • the decoupling window 4 consists in the present case of a plastic which can be determined by infrared rays.
  • the FIG. 2 shows a conveyor system in which in the pipe walls 1 of a steel pipe decoupling windows 4, which are circumferential, were embedded in two places. On both sides of the decoupling window 4 spark detector 5 are arranged, of which a line 8 leads to the fire panel 6.
  • the first spark detector 5 detects an ignition potential 2 in the pipe
  • a signal is issued to the fire alarm panel 6, which triggers the fire-extinguishing device 9, wherein a nozzle 7 an extinguishing agent is sprayed into the pipe. This happens at the moment when the ignition potential 2 passes this pipe section.
  • the fire alarm panel 6 triggers the fire-extinguishing device 9, wherein a nozzle 7 an extinguishing agent is sprayed into the pipe. This happens at the moment when the ignition potential 2 passes this pipe section.
  • FIG. 3 shows a silo or a cyclone, which is flowed from the bottom, with immediately after the inlet decoupling window 4 are arranged with spark detectors 5, which are coupled to a fire panel 6. If there is an ignition potential 2 in the glowing stream, an extinguishing system can be triggered at a suitable location.
  • FIG. 4 shows a pipe wall 1, in which a circulation of the decoupling window 4 is arranged in the form of a ring, fire detection devices 5 are arranged on both sides, wherein on one side an infrared transmitter 11 and on the other side an infrared receiver 12 is arranged, wherein the infrared receiver 12th is coupled to the fire panel 6.
  • FIG. 5 shows a tube in the pipe wall 1 instead of a revision flap a decoupling window 4 pressure and gas tight, with behind the inspection window a spark detector 5 is the explosion-free dust 3, which is pneumatically supported, checked for ignition potential 2.

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Fire Alarms (AREA)

Claims (8)

  1. Dispositif pour le découplage d'installations empoussiérées avec un risque d'explosion de zone 20 selon ATEX par rapport à une zone avec un risque d'explosion faible ou inexistant, composé d'un dispositif de transport avec une paroi (1) derrière laquelle des particules de poussière (2, 3) se déplacent dans un flux d'air et d'un détecteur de mesure avec un dispositif électronique de signalisation, caractérisé par
    - une fenêtre de découplage (4) étanche aux gaz et à la pression dans la paroi (1) du dispositif de transport, les particules (2, 3) en mouvement se trouvant dans le local à risque d'explosion sur un côté de la paroi et le détecteur (5) pour détecter des changements dans le local à risque d'explosion étant disposé en connexion avec un dispositif d'évaluation électronique (6) et des unités d'extinction (7,9) de l'autre côté de la paroi.
  2. Dispositif selon la revendication 1, caractérisé en ce que la fenêtre de découplage (4) est disposée en aval d'un lieu dans lequel des incendies et des étincelles peuvent se produire et en amont de locaux dans lesquels existe un risque d'explosion.
  3. Dispositif selon la revendication 1, caractérisé par la première fenêtre de découplage (4) en amont d'une unité d'extinction (7) dans la direction de déplacement des particules (2, 3).
  4. Dispositif selon les revendications 1 à 3, caractérisé en ce que la fenêtre de découplage (4) est en verre, matière plastique ou en fluorine ou en un matériau comparable.
  5. Dispositif selon les revendications 1 à 4, caractérisé en ce que la fenêtre de découplage (4) est disposée des deux côtés du lieu d'observation.
  6. Dispositif selon les revendications là 5, caractérisé en ce que des détecteurs dans les domaines infrarouge, UV ou visible sont disposés pour la détection d'incendie (5).
  7. Dispositif selon les revendications 1 à 6, caractérisé en ce que des dispositifs de signalisation d'étincelles ou de flammes composés d'un émetteur (11) et d'un récepteur (12) sont disposés pour la détection d'incendie (5).
  8. Dispositif selon les revendications 1 à 7, caractérisé en ce que des détecteurs optiques tels que des détecteurs de niveau, de surveillance, de température, de gaz, de densité, de dimension et de couleur sont disposés en tant que détecteur et récepteur pour la surveillance et le pilotage des fonctions.
EP20030010529 2002-11-21 2003-05-10 Dispositif pour découpler des installations chargés de poussières et avec risque d'explosion Expired - Lifetime EP1422675B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE20218136U DE20218136U1 (de) 2002-11-21 2002-11-21 Funkenlöschanlage für bewegte staubförmige Partikel
DE20218136U 2002-11-22

Publications (2)

Publication Number Publication Date
EP1422675A1 EP1422675A1 (fr) 2004-05-26
EP1422675B1 true EP1422675B1 (fr) 2012-06-27

Family

ID=7977250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20030010529 Expired - Lifetime EP1422675B1 (fr) 2002-11-21 2003-05-10 Dispositif pour découpler des installations chargés de poussières et avec risque d'explosion

Country Status (2)

Country Link
EP (1) EP1422675B1 (fr)
DE (1) DE20218136U1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006001208B4 (de) * 2006-01-10 2008-03-20 Fagus-Grecon Greten Gmbh & Co Kg Vorrichtung zum Löschen von glühenden Feststoffteilchen
DE102009017859B4 (de) * 2009-03-25 2016-05-12 Oliver Frieters Entstaubungsanlage mit Funkeinschaltsteuerung und Verfahren zum Anschließen der Entstaubungsanlage
DE102009017858B4 (de) * 2009-03-25 2016-05-12 Oliver Frieters Filtersteuerung mit Reststaubgehaltanzeige sowie Steuerungsverfahren hierfür
EP2244237B1 (fr) 2009-04-21 2012-07-04 Minimax GmbH & Co. KG Dispositif de reconnaissance et d'alerte de survenues d'incendies avec des matériaux inflammables
DE102012014143A1 (de) * 2012-07-18 2014-01-23 Man Diesel & Turbo Se Gasführendes Svstem und damit ausgerüstete Brennkraftmaschine
DE102012017534B4 (de) 2012-09-05 2014-11-06 Entstaubungsgeräte Pulsnitz GmbH Absaugvorrichtung
DE202012008456U1 (de) 2012-09-05 2012-09-28 Entstaubungsgeräte Pulsnitz GmbH Absaugvorrichtung
CN114306978B (zh) * 2022-01-07 2023-09-12 朱龙辉 一种港口谷仓防尘爆炸后灭火报警装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7533568U (de) * 1975-10-22 1976-02-19 Grecon Greten Consulting Gmbh & Co, 3220 Alfeld Meßvorrichtung eines Feueranzeigegerätes
DE2916086C3 (de) 1979-04-20 1981-10-22 Preussag Ag Feuerschutz, 2060 Bad Oldesloe Einrichtung zum Melden von optischen Feuererscheinungen, insbesondere Funken
US4855118A (en) 1987-04-15 1989-08-08 Nichia Kagaku Kogyo K.K. Method of producing fluorapatite
US4855718A (en) * 1987-07-28 1989-08-08 Firetek Corporation Fire detection system employing at least one optical waveguide
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
DE29612431U1 (de) * 1996-07-17 1997-11-20 Fagus-Grecon Greten Gmbh & Co Kg, 31061 Alfeld Löscheinrichtung
DE19843841C2 (de) * 1998-09-24 2001-06-28 Anseros Klaus Nonnenmacher Gmb Meßzelle für fotometrische Messungen

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Publication number Publication date
EP1422675A1 (fr) 2004-05-26
DE20218136U1 (de) 2003-03-06

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