EP2173643B1 - Sicherheitsabdeckung und rückhalteanordnung für chemische produkte - Google Patents

Sicherheitsabdeckung und rückhalteanordnung für chemische produkte Download PDF

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Publication number
EP2173643B1
EP2173643B1 EP08786633.1A EP08786633A EP2173643B1 EP 2173643 B1 EP2173643 B1 EP 2173643B1 EP 08786633 A EP08786633 A EP 08786633A EP 2173643 B1 EP2173643 B1 EP 2173643B1
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EP
European Patent Office
Prior art keywords
cowl
tank
fact
product
sheet baffle
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Application number
EP08786633.1A
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English (en)
French (fr)
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EP2173643A1 (de
Inventor
Yves Machou
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GMT SAS
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GMT SAS
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • 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
    • A62C3/06—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products
    • A62C3/065—Fire prevention, containment or extinguishing specially adapted for particular objects or places of highly inflammable material, e.g. light metals, petroleum products for containers filled with inflammable liquids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B17/00—Methods preventing fouling
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F5/00—Sewerage structures
    • E03F5/14—Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • E03F5/16—Devices for separating oil, water or grease from sewage in drains leading to the main sewer

Definitions

  • the invention relates to a cover or safety cover, according to the preamble of claim 1, adapted to cover a liquid or potentially flammable chemical (semi-liquid) receiving tank placed under a device containing such chemicals (tank, electrical transformer, in particular) as well as an extinguishing retention assembly comprising a receiving tank in particular of these hazardous products being able to flow from the device.
  • a cover or safety cover according to the preamble of claim 1, adapted to cover a liquid or potentially flammable chemical (semi-liquid) receiving tank placed under a device containing such chemicals (tank, electrical transformer, in particular) as well as an extinguishing retention assembly comprising a receiving tank in particular of these hazardous products being able to flow from the device.
  • the transformer is a device that essentially serves to change the voltage of an electric current. This conversion produces a large amount of heat that must be dissipated. Immersion of cores and coils in a fluid ensures efficient cooling. This fluid must not only be a good coolant but also a good electrical insulator (dielectric). These are mineral oil and more generally PCBs.
  • a tank be placed under the transformer to collect liquid leaks typically based on hydrocarbons that can flow from the transformer, the protective cover which covers it comprising, for its part, typically, slats close together, sloping, reserving between them a space ensuring the flow product access to this tank.
  • each slat 102 is made of sheet metal folded to form a profile comprising an upper portion 105 bordered on its longitudinal sides of two substantially vertical elements 106 of different heights to create the inclination of the slat.
  • Said vertical elements 106 are folded in their lower part in the same direction to form generally horizontal bearing lugs 107, the bearing lug 107 of the uppermost vertical element 106 bearing on the bearing lug 107 of the vertical element of lower.
  • Said cover comprises a central portion having a double slope and two vertical side walls integral with a double slope receptacle.
  • the vertical walls have at their lower ends openings opening into a lock formed by the volume defined by the central portion with double slope and the double slope receptacle.
  • This type of safety cover does not allow a sufficiently fast evacuation of the liquid nor a complete extinction of the liquid when the latter catches fire.
  • each lamella has two downward slopes extending on either side of a high fold line called the crest line, the lower end of a first slope of a lamella being folded towards bottom to form a generally vertical blank whose lower end is folded inwards, that is to say towards the crest line, to form a generally horizontal tab called the bearing end and the lower end of the second slope of said lamella being folded down to form a generally vertical blank, of height substantially equal to the height of the vertical blank, and whose lower end is folded outwardly to form a generally horizontal tab called end d in such a way that the bearing end of a first strip is able to bear against the end of
  • Another subject of the invention relates to an extinguishing retention assembly, in particular for a flowing chemical, such as hydrocarbons originating from an electrical transformer, this assembly comprising a vessel for receiving the product (s) that can flow. a device and a cover to be placed between this device and the tank, the hood comprising slats close together, steep reserving between them a narrow space providing said product access to the tank, remarkable in that the hood is the one according to the invention.
  • the safety cover 1 comprises a rectangular frame 3 which is advantageously metallic and on which are placed a series of sloping transverse slats 5 arranged immediately side by side and which are advantageously also metallic.
  • these strips 5 are elongated in a transverse general direction 5a. They have an upper surface with multiple slopes 15a, 15b to promote the flow of the dielectric, based on hydrocarbons (flammable), which can leak from a transformer 7 placed above.
  • each slat 5 comprises two downward slopes 15a and 15b extending on either side of a high fold line called crest line 45 coincides with the transverse general direction 5a.
  • the lamellae 5 which are made here as a section folded downwards at a high fold line confused with their transverse general direction 5a, have support ends 25a, 25b folded into angles for better support.
  • a first slope 15a of a lamella 5 is folded down to form a generally vertical blank 12a whose lower end is folded inwards, that is to say toward the line of crest, to form a generally horizontal lug said support end 25a.
  • the lower end of the second slope 15b of said strip 5 is folded downwards to form a generally vertical blank 12b, of height substantially equal to the height of the vertical blank 12a, and whose lower end is folded outwards , that is to say in the opposite direction to the ridge line 45, to form a generally horizontal lug said support end 25b.
  • the longitudinal edge of a first lamella 5, and more precisely its bearing end 25a, is able to bear on the bearing end 25b of the longitudinal edge of an adjacent lamella 5.
  • two adjacent lamellae are separated, according to their common elongation direction 5a, by a space 9 (see figure 6 ) relatively narrow, sized to let the hydrocarbons flow to a tank 9 that the cap 1 cap.
  • This space is narrow and in the form of baffles to let in only a little air, so that the space in the tank is confined. Only smoldering fire is possible.
  • each strip 5 may be covered with a very low coefficient of friction material.
  • material with a very low coefficient of friction or coefficient of friction is understood to mean a material whose coefficient of friction is less than or equal to 0.3.
  • Said material may for example consist of a thermoplastic tetrafluoroethylene polymer such as polytetrafluoroethylene (PTFE) marketed in particular under the trade names Teflon®, Hostalen®, Hostaflon® or Fluon®.
  • PTFE polytetrafluoroethylene
  • the particular shape of the double slope slats promotes the flow of liquid leaks in the tank and provides a faster flow than the single slope systems of the prior art described above.
  • the double slope at level of the flow space 9 allows a better flow of the liquid.
  • the height H1 of the slats will be favorably between 20mm and 30mm. And the height H2 of their upper part 35, roof-shaped with several slopes, will be favorably between 10mm and 20mm.
  • a two-pitched roof is steeper than a single pitched roof.
  • the rigidity will be important, allowing to possibly walk on, or limit the thickness and thus make the slats lightweight, more easily maneuverable and inexpensive.
  • the tank 11 located under the hood may be either the concrete casing of a pit 13 dug in the ground 15, or a retention tank placed itself in such a pit or placed on the ground, in particular a metal tray does not not degrading under the effect of aggressive products from the device 7 and may spill.
  • a grating 19, preferably metal, resting on the flange 3, can cover the cover 1.
  • a connecting piece will be placed transversely to provide additional support grating 19 and avoid any risk of buckling.
  • one or more angles 21 fixed rigidly can support an outer edge 23 of the frame 3 of the hood, as well as, on top, the periphery of the grating 19.
  • the tank 11 will receive liquid hydrocarbons which have flowed along the sloping slats 5 of the hood, then passages 9.
  • the detector means 27 are connected to means 29 for emitting an active product against a smoldering fire.
  • This may be one or more heads of "sprinklers" (diffusers) jet of extinguishing product for hydrocarbons (gas inhibitor suffocating).
  • It can be fixed temperature thermal detectors: A heat-expandable liquid ampoule containing an area bubble bursts when the trigger temperature of the head is reached, or any other equivalent means well known to those skilled in the art.
  • a pump system When one or more heads are triggered, a pump system starts to bring the network back to its reference pressure. The action against a smoldering fire is obtained by the product diffused by the "sprinklers". We will thus be able to detect a beginning of smoldering fire.
  • detection and warning means such as those 31-33, we can couple their action to an alert of an operator, each unit 27-29 being carried by a support bar 30 anchored to the tank, above the level of the detection means 31b ( fig.7 ).
  • the warning means will favorably include a visual warning sign 33a standing up (mixed lines fig.7 ) above of the cover 1, under the action of mechanical means of connection between said panel and the system 31 for detecting hydrocarbons.
  • Such a visual warning by a flag or a panel 33a is advisable, since it makes it possible to simply obtain the information at an appropriate safety distance, while the transformer is operating.
  • the actuation by the expander 31 will preferably be mechanical type, reliable solution and insensitive to electromagnetic interference.
  • a linkage may connect the detector 31 to the warning means 33-33a.
  • warning means are favorably mounted through the hood 1, and here the grating 19.
  • a pipe 31a connected to the detector 31 passes through the peripheral rim 23 of the hood, near a lateral edge of the latter, to guide up the panel 33a if the alert level considered hydrocarbon has been reached in the tank .
  • the means 31 for detecting the presence of these hydrocarbons from a given level comprise, in the version shown, a polymer membrane 31b placed in the tank and which degrades rapidly in contact with the hydrocarbons present (duration may be a few seconds).
  • the panel 33a may be retained in its retracted state (below the level of the lamellae 5) by the compression of a spring thus held by the rod 31c that retains the membrane 31b. The rupture of the membrane releases the spring which pushes up the panel 33a and therefore the deployed by making it appear through the cover 1, above.
  • the grating 19 may have been maintained, as the detector means 27.
  • the hydrocarbon detection means 31 with their sensitive membrane 31b are also present.
  • the detector means 35 will detect an inappropriate presence, such as an excessive amount, of water in the tank. They may be identical to the means 31, the nature of the 35b membrane close: it will alter (will break) to water.
  • the same push mechanism as that described for the means 31 can deploy a surface warning means, above the slats, see grating, the triggering of the detector means 35.
  • the detector means 37 which can detect a level of product in the tank.
  • a float 37b detects this level.
  • these assemblies comprising the warning means (panels) will preferably be mounted on an intermediate casing 145 disposed locally at the location of a lamella.
  • the housing 145 and / or each detection system and warning means will preferably be removable vis-à-vis the rest of the hood, and in particular slats 5.
  • a Structure can connect the housing to the frame 3 and support it.
  • the housing can be traversed by each of the detectors whose upper body (inside which is mounted mobile the alert panel concerned) releasably rests on the bottom 145a of the housing 145.
  • the detector means 31b, 35b, 37 allow to reveal several risk situations. Thus, in the case of transformers, this will take into account the presence of light hydrocarbons (floating on water for example), heavy hydrocarbons and excess water, as a result.

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  • Public Health (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
  • Housings And Mounting Of Transformers (AREA)

Claims (13)

  1. Sicherheitshaube, die angepasst ist, um einen Behälter (11) zur Aufnahme abzudecken, insbesondere von entflammbaren, fließenden Chemikalien, der unter eine Vorrichtung platziert ist, die derartige Produkte enthält, wie zum Beispiel ein elektrischer Transformator, wobei die Haube angenäherte, abschüssige Lamellen (5) aufweist, die untereinander einen Raum (9) freihalten, der den fließenden Produkten einen Zugang zu dem Behälter (11) sicherstellt, dadurch gekennzeichnet, dass jede Lamelle (5) zwei fallende Neigungen (15a, 15b) aufweist, die sich zu jeder Seite einer oberen Faltlinie, Grat (45) genannt, erstrecken, wobei das untere Ende einer ersten Neigung (15a) einer Lamelle (5) nach unten umgefaltet ist, um eine insgesamt vertikale Platine (12a) zu bilden, deren unteres Ende zum Inneren umgefaltet ist, das heißt, zu der Gratlinie (45), um eine insgesamt horizontale Pratze, Auflageende (25a) genannt, zu bilden, und wobei das untere Ende der zweiten Neigung (15b) der zweiten Lamelle (5) nach unten umgefaltet ist, um eine insgesamt vertikale Platine (12b) mit Höhe im Wesentlichen gleich der Höhe der vertikalen Platine (12a) zu bilden, und deren unteres Ende nach außen umgefaltet ist, um eine insgesamt horizontale Pratze, Auflageende (25b) genannt, derart zu bilden, dass das Auflageende (25a) einer ersten Lamelle (5) geeignet ist, um auf dem Auflageende (25b) des Längsrands einer benachbarten Lamelle (5) unter Bilden eines Raums (9) aufzuliegen, um ein schnelles Abfließen der Produkte zu dem Behälter (11) zu begünstigen.
  2. Haube nach Anspruch 1, dadurch gekennzeichnet, dass die Neigungen (15a, 15b) jeder Lamelle (5) identische Oberflächen aufweisen.
  3. Haube nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass die Lamellen (5) metallisch sind.
  4. Haube nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass jede Lamelle (5) mit einem Werkstoff abgedeckt ist, dessen Reibungskoeffizient kleiner oder gleich 0,3 ist.
  5. Haube nach Anspruch 4, dadurch gekennzeichnet, dass der Werkstoff aus einem thermoplastischen Tetrafluorethylenpolymer besteht.
  6. Haube nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie von Warnmitteln (33, 33a, 39a, 41a...) durchquert ist, die für die Wirkung eines Systems (31, 31b, 35, 37) auf das Erfassen einer anormalen Gegenwart von Produkt(en) in dem Behälter empfindlich reagieren.
  7. Haube nach Anspruch 6, dadurch gekennzeichnet, dass die Warnmittel (33...), die vorzugsweise visuell sind, zwischen einem eingezogenen Zustand und einem ausgefahrenen Zustand, in dem sie sich oberhalb der Haube unter der Einwirkung des Erfassungssystems (31, 31 b, 35, 37) aufrichten, beweglich sind.
  8. Haube nach Anspruch 6 oder 7, dadurch gekennzeichnet, dass die Warnmittel (33) mindestens eine Tafel (33a, 39a, 41a) aufweisen, die an der Stelle einer Lamelle (5) oder durch einen umfänglichen Rahmen (3, 23) der Haube, der diese Lamellen (5) umgibt und auf dem ihre Enden aufliegen, montiert ist.
  9. Haube nach einem der Ansprüche 6 bis 8, dadurch gekennzeichnet, dass das Erfassungssystem (31, 31b, 35, 37) und die Warnmittel (33a, 39a, 41a) auf ein gemeinsames Gehäuse (45) montiert sind, das an der Stelle einer der Lamellen angeordnet ist, wobei dieses Gehäuse und/oder jedes damit verbundene Erfassungssystem und Warnmittel in Bezug zu dem Rest der Haube abnehmbar angeordnet sind.
  10. Auffangbaugruppe mit Löschen insbesondere für eine fließende Chemikalie, wie zum Beispiel Kohlenwasserstoffe, die von einem elektrischen Transformator kommt, wobei diese Baugruppe einen Aufnahmebehälter (11) dieses Produkts / dieser Produkte aufweist, die von einer Vorrichtung (7) fließen können, und eine Haube, die zwischen diese Vorrichtung und den Behälter (11) zu platzieren ist, wobei die Haube einander angenäherte abschüssige Lamellen (5) aufweist, die untereinander einen knappen Raum (9) freihalten, der dem fließenden Produkt einen Zugang zu dem Behälter (11) sicherstellt, dadurch gekennzeichnet, dass die Haube diejenige nach einem beliebigen der Ansprüche 1 bis 9 ist.
  11. Auffangbaugruppe nach Anspruch 10, dadurch gekennzeichnet, dass sie ferner mindestens eines der folgenden Merkmale aufweist:
    - Erfassungsmittel (31, 31b) einer anormalen Gegenwart von Produkt, das in den Behälter (11) fließt, und die mit Warnmitteln (33, 33a) verbunden sind, die diese Gegenwart außen anzeigen,
    - Erfassungsmittel (27) von Entflammungsbedingungen der Chemikalien in dem Behälter 11), die mit Mitteln (29) zum Senden einer gegen ein schwelendes Feuer aktiven Substanz verbunden sind.
  12. Auffangbaugruppe nach einem der Ansprüche 10 oder 11, dadurch gekennzeichnet, dass die Warnmittel (33, 33a, 39a, 41a) eine oder mehrere visuelle Tafeln (33a, 39a, 41a) aufweisen, die an der Außenseite des Behälters (11) durch die Haube unter der Einwirkung mechanischer Verbindungsmittel (31a, 31c) zwischen der / jeder Tafel und den Produkterfassungsmitteln, die unter der Haube in dem Behälter (11) platziert sind, erscheinen.
  13. Auffangbaugruppe nach einem der Ansprüche 10 bis 12, dadurch gekennzeichnet, dass die Erfassungsmittel von Produkt(en) mehrere Mittel aufweisen aus:
    - einem Kohlenwasserstoffdetektor (31b) oder Detektor einer anderen aggressiven Chemikalie,
    - einem Wasserdetektor (35b),
    - einen Schwimmer (37b).
EP08786633.1A 2007-07-30 2008-07-30 Sicherheitsabdeckung und rückhalteanordnung für chemische produkte Active EP2173643B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0705564A FR2919590B1 (fr) 2007-07-30 2007-07-30 Capot de securite et ensemble de retention pour produits chimiques
PCT/EP2008/060000 WO2009016203A1 (fr) 2007-07-30 2008-07-30 Capot de securite et ensemble de retention pour produits chimiques

Publications (2)

Publication Number Publication Date
EP2173643A1 EP2173643A1 (de) 2010-04-14
EP2173643B1 true EP2173643B1 (de) 2013-06-19

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EP (1) EP2173643B1 (de)
ES (1) ES2424442T3 (de)
FR (1) FR2919590B1 (de)
WO (1) WO2009016203A1 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2948647B1 (fr) * 2009-07-30 2011-08-26 Gmt Dispositif d'extinction rapide et naturelle pour fosses d'extinction et bacs de retention anti-feu d'huile inflammable, notamment de transformateurs electriques
FR2960532B1 (fr) 2010-05-31 2013-01-04 Gmt Dispositif de securite environnementale pour bac ou fosse de retention de produits dangereux tels que des produits inflammables et/ou toxiques, en particulier pour fosses ou bacs de retention d'huile pour transformateurs electriques
FR2961006B1 (fr) * 2010-06-07 2013-07-12 Gmt Dispositif de securite modulaire pour la recuperation et l'extinction de produits inflammables pouvant fuir d'un transformateur electrique
DE102013220546A1 (de) * 2013-10-11 2015-04-16 Minimax Mobile Services Gmbh & Co. Kg Vorrichtung zur sicheren Lagerung eines Behälters und Lager

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2743790A1 (fr) * 1996-01-23 1997-07-25 Jacq Yves Couvercle de securite pour bac de retention

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Publication number Priority date Publication date Assignee Title
DE2430424A1 (de) * 1974-06-25 1976-01-15 Maier & Stadlinger Hoch Tief U Ortsbewegliches fertighaus, insbesondere zur unterbringung von der stromumwandlung dienenden geraeten
US5092251A (en) * 1991-05-23 1992-03-03 Bergen Barrel & Drum Co. Liquid containment pallet
US6305131B1 (en) * 1999-10-01 2001-10-23 Frederick W. Romig Hazardous material storage facility with sloped floors and method of construction
DE102004026558A1 (de) * 2004-05-04 2005-12-22 Gronemeyer & Banck Gmbh & Co. Kg Tankbauwerk
DE202005009987U1 (de) * 2005-06-25 2005-09-22 Ambros Schmelzer & Sohn Gmbh & Co. Kg Belüftungsboden

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2743790A1 (fr) * 1996-01-23 1997-07-25 Jacq Yves Couvercle de securite pour bac de retention

Also Published As

Publication number Publication date
FR2919590B1 (fr) 2011-08-26
WO2009016203A1 (fr) 2009-02-05
ES2424442T3 (es) 2013-10-02
EP2173643A1 (de) 2010-04-14
FR2919590A1 (fr) 2009-02-06

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