SI20909A - System for ensuring evacuation and rescue from the effects of smoke, heat and polutants - Google Patents

System for ensuring evacuation and rescue from the effects of smoke, heat and polutants Download PDF

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Publication number
SI20909A
SI20909A SI200120023A SI200120023A SI20909A SI 20909 A SI20909 A SI 20909A SI 200120023 A SI200120023 A SI 200120023A SI 200120023 A SI200120023 A SI 200120023A SI 20909 A SI20909 A SI 20909A
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spray
fire
smoke
evacuation
arches
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SI200120023A
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Slovenian (sl)
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Axel Kretzschmar
Gerd Muehlenbruch
Helmut Witwar
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Axel Kretzschmar
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Publication of SI20909A publication Critical patent/SI20909A/en

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    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0221Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires for tunnels
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0257Fire curtains, blankets, walls, fences
    • A62C3/0264Fire curtains, blankets, walls, fences by creating water curtains
    • AHUMAN NECESSITIES
    • A62LIFE-SAVING; FIRE-FIGHTING
    • A62CFIRE-FIGHTING
    • A62C3/00Fire prevention, containment or extinguishing specially adapted for particular objects or places
    • A62C3/02Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires
    • A62C3/0292Fire prevention, containment or extinguishing specially adapted for particular objects or places for area conflagrations, e.g. forest fires, subterranean fires by spraying extinguishants directly into the fire

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  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Ecology (AREA)
  • Forests & Forestry (AREA)
  • 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)
  • Respiratory Apparatuses And Protective Means (AREA)
  • Emergency Lowering Means (AREA)
  • Nozzles (AREA)

Abstract

The invention relates to a system for ensuring evacuation and rescue from the effects of smoke, heat and pollutants in areas with long evacuation routes, such as mining installations, underground transport systems, or similar. Said system takes advantage of the characteristics of a mist of water, which is generated by misting means, in such a way that the air lying in the area below the layer of fumes can be respired for a long period of time and its clarity can at least be maintained, so that the direction of evacuation remains visible. According to the invention, the sprinkler nozzles (3), which generate the mist, are fixed to sprinkler arches (2) that are positioned along the entire length of the area and/or its evacuation routes, one behind the other, transversally to the direction of evacuation, following the clearance contours of the area and/or the evacuation routes. The arch-type arrangement of the sprinkler nozzles (3) over the entire length of the areas and evacuation routes divides the structural installations into sections, which do not impede the basic air flow (6) present in the installation, in such a way that the smoke or pollutant flow is not accumulated by the mist that is produced.

Description

IZVEDBA ZA VAROVANJE POBEGA IN REŠEVANJA PRED DIMOM, VROČINO IN ONESNAŽENJEM S ŠKODLJIVIMI SNOVMIDESIGN FOR PROTECTION OF Escape and Rescue against Smoke, Heat and Pollution by Harmful Substances

Izum zadeva izvedbo za varovanje pobega in reševanja pred dimom, vročino in onesnaženjem s škodljivimi snovmi iz prostorov z dolgimi požarnimi potmi kot so rudniški objekti, podzemni prometni objekti in podobno.The invention relates to an embodiment for the protection of escape and rescue from smoke, heat and pollution by harmful substances from premises with long fire paths such as mining facilities, underground traffic structures and the like.

Za testne naprave je v današnjem času običajno, da se za boj proti požaru kot tudi za reševanje iz podzemskih prostorov, posebno iz cestnih in železniških predorov, inštalirajo naprave s škropilniki (Sprinkler). Tako v primeru nesreč kot tudi pri praktičnih poskusih pa se je izkazala nezadostnost oz. pomanjkljivost takšnih naprav. Vzroki za to ležijo predvsem v razmeroma velikih in z visoko hitrostjo iz škropilnikov izstopajočih vodnih kapljicah, ki zato niso sposobne vezati nase delcev dima in škodljivih snovi. Nasprotno, zaradi svoje visoke izstopne hitrosti in velikosti razbijajo naravne oz. z ventilacijskimi napravami povzročene na prosto premikajoče se vroče plasti dimnih plinov. To pripelje k temu, da se plast dimnih plinov pomeša s spodaj nahajajočo se plastjo, v kateri je le malo dimnih plinov in se s tem vidljivost in dihanje bežečih oseb ter reševalnega osebja znatno omeji in je s tem beg in angažiranje reševalnega osebja otežkočeno. Poleg tega vodi v škropilnikih povzročena visoka vodna intenzivnost k delnemu gašenju požara. Iz pravkar pogašene površine požara pa izhaja izjemno velika nevarnost povratnega vžiga. Gorljivi plini in pare se razširjajo neopazno in se vžgejo ponovno ob prvi priložnosti. Na taIt is customary for test facilities to install Sprinkler devices for fire fighting as well as for rescue from underground areas, especially from road and rail tunnels. However, in the event of accidents as well as in practical trials, insufficiency or the disadvantage of such devices. This is mainly due to the relatively large and high-velocity water droplets emerging from the sprinklers, which are therefore unable to bind smoke particles and harmful substances. On the contrary, due to their high output speed and size, they break the natural or with ventilation devices caused by free-moving hot flue gas layers. This causes the flue gas layer to be mixed with the layer below, which is low in flue gas, thereby significantly reducing the visibility and breathing of fleeing and ambulance personnel, making it difficult to escape and engage ambulance personnel. In addition, the sprinklers lead to a high water intensity leading to a partial fire fighting. From the extinguished surface of the fire, however, there is an extremely high risk of backfiring. Combustible gases and vapors spread unnoticed and re-ignite at the earliest opportunity. On this one

-2-2način nastalo razblinjanje požara oz. celo eksplozije imajo prav v podzemnih objektih kot npr. v prometnih predorih uničujoče posledice. Posebno v primerih, v katerih so udeležene pri požaru goreče tekočine, kar je pogostoma slučaj pri požarih vozil v predorih, je ta nevarnost posebno velika.-2-2 the way the fire started or even explosions are right in underground structures such as devastating consequences in traffic tunnels. Especially in cases where flammable liquids are involved, which is often the case with tunnel fires, this risk is particularly high.

Za zajezitev posledic požarov so znatno bolje prilagojene naprave, ki delujejo na osnovi v patentu DE-PS 195 14 923 C2 opisanih postopkov za varovanje pobega in reševanja pred dimom in vročino. Princip, ki je osnova temu izumu, je v tem, da se koncentracija dima in škodljivih snovi reducira z najdrobnejšimi vodnimi kapljicami oz. vodno meglo, v nadaljnjem tekstu imenovano meglo, s čemer se dihanje in vidljivost v ogroženem področju izboljša tako, da je pobeg in reševanje iz predora znatno olajšan. Pri tem učinkuje navzdol spuščajoča se megla tako, da zajezi ogenj, sporadičnemu prostorsko omejenemu gašenju ognja se izognemo. To se doseže z meglo nižje izhodne hitrosti in/ali hitrosti razširjanja. Gostota delcev te megle ima za vezavo dima, vročine in škodljivih snovi zahtevano koncentracijo. Velikost delcev megle je tako naravnana, da se vodni delci usedajo počasi iz točke svojega izstopanja ne da bi zmanjšali vidljivost v prostoru. Šobe za vodno meglo so razporejene podobno kot pri škropilnih napravah v zgornjem področju predora vzdolž njegovega stropa, pri čemer lahko smer izstopa variira v paralelni in navpični smeri v odnosu do stropa. Sekcijska razporeditev šob za vodno meglo omogoča obratovanje šob v izmeničnem ritmu. Inštalirani senzorji detektirajo požar in gasijo ga v neposredni okolici požara inštalirane šobe za vodno meglo.To mitigate the effects of fires, devices that operate on the basis of the procedures for protecting escape and rescue from smoke and heat are significantly better adapted to the patent in DE-PS 195 14 923 C2. The principle underlying this invention is that the concentration of smoke and noxious substances is reduced by the smallest water droplets, or. water fog, hereinafter referred to as fog, which improves breathing and visibility in the endangered area so that escape and rescue from the tunnel is significantly facilitated. In doing so, the downward fog works by suppressing the fire, avoiding sporadic space-limited extinguishing. This is achieved by lower fog output speed and / or propagation speed. The particle density of this mist has the required concentration for binding smoke, heat and harmful substances. The size of the mist particles is so adjusted that the water particles settle slowly from the point of their exit without reducing visibility in the room. Water mist nozzles are arranged similarly to sprinklers in the upper tunnel area along its ceiling, with the exit direction varying in parallel and vertical direction relative to the ceiling. The sectional arrangement of the water mist nozzles allows the nozzles to operate in alternating rhythms. Installed sensors detect the fire and extinguish it in the immediate vicinity of the fire installed water mist nozzles.

V praktičnih poskusih so se sicer izkazale znatne prednostiThere were significant advantages in practical experiments

-3-3v primerjavi s tradicionalnimi škropilnimi napravami, vendar pa se s temi postopki še niso pojavili zaželeni učinki v zadovoljivi meri. Kot pomanjkljivost se je tudi tukaj izkazalo, da na naravni tok plasti dimnih plinov še preveč vpliva izstopajoča megla in pride zato še do mešanja s plastjo, v kateri je le malo dimnih plinov, čeprav je čistilni efekt dima zaradi finih meglenih kapljic dokazljivo prisoten.-3-3 compared to traditional sprinkler systems, but these processes have not yet produced the desired effects to a satisfactory degree. The disadvantage here is that the natural flow of the flue gas layer is still exerted by the outgoing fog and therefore mixed with a layer containing only a small amount of flue gas, although the purifying effect of the smoke due to the fine mist droplets is demonstrably present.

Naslednja znana oblika boja proti dimu v zaprtih prostorih je uporaba vodnih zaves. V ta namen se naprave za gašenje razporedijo tako, da v primeru požara izstopajoče gasilno sredstvo tvori za dimne pline neprehodno zaveso. Zadovoljiv učinek nastopi v tem primeru vsekakor v kombinaciji z zelo zmogljivimi napravami za odvajanje dima, ki morajo biti v tem primeru nameščene za celotni z vodnimi zavesami ograjeni prostor. Če pustimo ob strani za to zahtevano visoko porabo so take naprave za pobeg in reševanje oseb neprimerne, ker je znotraj enega takšnega prostora orientacija popolnoma onemogočena. Kot je bilo pravkar omenjeno, so pregradne vodne zavese vedno vezane istočasno na zmogljive odvodne naprave za dim. Vodovodne naprave morajo biti torej vedno tako razvrščene, da se med dvema vodovodnima nahaja najmanj ena odvodna naprava za dim. Pri tem se prostor med dvema vodnima zavesama vsekakor lahko razširi do 100 metrov dolžine.Another known form of indoor smoke fighting is the use of water curtains. To this end, the extinguishers shall be arranged in such a way that, in the event of a fire, the extinguishing extinguishing agent forms an impassable curtain for flue gases. The satisfactory effect in this case is in any case combined with the very powerful smoke extraction devices which in this case must be located throughout the enclosure with water curtains. Set aside for this high demand, such escape and rescue devices are inappropriate because orientation is completely disabled within one such space. As mentioned earlier, water curtain bulkheads are always connected at the same time to powerful smoke extractors. The plumbing fixtures must therefore always be so arranged that at least one smoke outlet is located between the two plumbing fixtures. The space between the two water curtains can certainly extend up to 100 meters in length.

Izum je osnovan zatorej na problemu, kako ustvariti izvedbo za varovanje pobega in reševanja pred dimom, vročino in onesnaženjem s škodljivimi snovmi ob uporabi sredstev za izdelavo megle, ki izkoriščajo lastnosti megle tako, da je zrak vsaj na področju izpod plasti dimnih plinov dalj časa vdihljiv in presojen, tako da ostane smer pobegaThe invention is therefore based on the problem of how to create an embodiment for the escape and rescue of smoke, heat and pollutants using fog agents that exploit the properties of the fog so that the air is inhaled at least in the area below the flue gas layer and judged so that the direction of escape remains

-4-4razpoznavna oz. vidna.-4-4 recognizable or. visible.

V skladu z izumom je naloga rešljiva z značilnostmi prvega patentnega zahtevka. Sledeča zahtevka 2 in 3 zadevata ustrezno oblikovanje naprave.According to the invention, the task is solvable by the features of the first claim. The following claims 2 and 3 concern the proper design of the device.

Z ločno obliko razporeditve razpršilnih šob za meglo vzdolž celotne dolžine prostora in požarne poti se v skladu z izumom celotni gradbeni kompleks deli na odseke. Ti odseki niso kakor pri vodnih zavesah obojestransko omejena področja, ampak omogočajo, da se tok dima oz. škodljivih snovi svobodno odvede v smeri, ki jo določa zračni tok, ki je v vsakem primeru prisoten in ga vodna megla ne zmanjšuje. To pomeni, da niti izvedba razpršilnih lokov prečno na smer zračnega toka niti iz šob izstbpajoča megla ne ovirata zračnega toka, ki pobira s seboj tok dima in škodljivih snovi neovirano v svojem naravnem oz. prisilnem gibanju. Nižji izhodni impulz megle reducira vrtinčenje dima. Nasprotno, v smer toka dima in škodljivih snovi naravnane meglene šobe podpirajo ta tok. Istočasno vežejo lebdeče vodne kapljice v dimu vsebujoče prašne ter sajaste delce in delce škodljivih snovi in se spuščajo z le-temi na tla. To se po učinku izenačuje s pralno zaveso dima in zrak postane s tem od odseka do odseka bolj čist, to pomeni bolj prosojen, vdihljiv in tudi hladnejši. Počasno pogrezanje tako očiščenega dima je z oddaljevanjem od požarnega žarišča za ljudi manj nevarno. Takšna v celoti vlažna atmosfera v predoru ima za ogenj zajezitveni in za vžig zavirajoči učinek.By the separate arrangement of the mist spray nozzles along the entire length of the space and the fire path, the entire building complex is divided into sections according to the invention. These sections are not confined to both sides of the water curtain, but allow smoke or smoke to flow. it freely removes harmful substances in the direction determined by the air flow, which is in any case present and is not reduced by water mist. This means that neither the design of the spray arcs transversely to the airflow direction nor the nozzles emerging from the nozzles obstruct the airflow, which collects smoke and noxious substances in their natural or natural flow. forced movement. A lower fog output impulse reduces smoke swirl. On the contrary, fog nozzles directed in the direction of the flow of smoke and harmful substances support this flow. At the same time, they bind floating water droplets in smoke-containing dust and soot particles and particles of harmful substances and lower them to the ground. This equates to a washable smoke curtain in effect and the air becomes cleaner from section to section, meaning more translucent, more breathable and also cooler. Slow submergence of such purified smoke is less dangerous for people to move away from the fire. Such a completely moist atmosphere in the tunnel has a stifling effect and a fire retardant effect.

Izvedba šob za meglo se za posamezni razpršilni lok ravna po svoji razpršilni karakteristiki. Razpršilni stožci se morajo med seboj nalahko prekrivati, pri čemer vsiThe design of the mist nozzles for each spray arc is governed by its spray characteristic. The spray cones must be easily overlapping with each other

-5-5razpršilni stožci pokrivajo presek celotnega prostora v bližini loka.-5-5 spray cones cover the cross section of the entire space near the arch.

Medsebojna razdalja razpršilnih lokov znotraj predora se ravna po gradbenih, varstveno-tehničnih in ne nazadnje po ekonomskih kriterijih. Čim krajša je razdalja, tembolj intenzivno se tok dimnih plinov čisti, tembolj varen postane pobeg in reševanje. Pri večjih razdaljah je zelo primerno v sorazmerju z možnostmi dodatno upoštevati dolžino požarne poti.The distance between the spray arches inside the tunnel is based on construction, protection and technical, and not least on economic criteria. The shorter the distance, the more intense the flue gas stream clears, the more secure the escape and rescue becomes. For longer distances, it is very appropriate to take into account the length of the fire path in proportion to the possibilities.

Pri obratovanju naprave v primeru nezgode je prednostno aktivirati razpršilni lok pred požarnim žariščem, da bi se zanesljivo oviralo razširjanje požarnega toka in toka dimnih plinov v smeri proti zračnemu toku. Število v smeri zračnega toka izza požarnega žarišča odrejenih razpršilnih lokov se ravna po intenzivnosti razvoja dima in škodljivih snovi.When operating the device in the event of an accident, it is preferable to activate the spray arc in front of the fire, in order to reliably impede the spread of fire and flue gas flow in the direction of the air flow. The number in the direction of the air flow from behind the fire focus of the ordered spray arcs is based on the intensity of the smoke and harmful substances development.

Premično vrtljiva izvedba in krmiljenje izhodnega kota šob za meglo dopušča namensko prilagoditev izstopa megle okoliščinam toka na varovani požarni poti. Za prilagoditev razpršilne smeri šob za meglo okoliščinam toka pa je možno predvideti tudi po dva paralelna razpršilna loka z razpršilnimi šobami v medsebojno nasprotujočih si smereh in oblikovati dovod vode do njih tako, da ga je možno krmiliti.The movable rotation design and control of the fog nozzle exit angle allows for the purpose of adjusting the fog outlet to the circumstances of the flow on the protected fire path. In order to adjust the spray direction of the fog nozzles to the flow conditions, it is also possible to provide two parallel spray arcs with spray nozzles in mutually opposite directions and to form a water supply to them so that it can be controlled.

V izvedbi po izumu se je z uporabo razmeroma enostavnih in po svoje znanih konstrukcijskih sredstev posrečilo izrabiti lastnosti megle tako, da pobeg in reševanje iz prostorov z dolgo požarno potjo poteče lahko znatno bolj varno.In the embodiment of the invention, the use of relatively simple and known structural means has made it possible to exploit the properties of the fog so that escape and rescue from rooms with a long fire path can be significantly safer.

-6-6V nadaljnjem naj bo izum podrobneje razložen na primeru. Priloženi sliki prikazujeta:-6-6 Hereinafter, the invention will be explained in more detail by way of example. The attached pictures show:

Sl. 1 Shema v predoru inštalirane naprave v skladu z izumom po izbruhu požara, vendar pred njenim aktiviranjem inFIG. 1 Schematic diagram of a tunnel of an installation in accordance with the invention after the outbreak of fire but before its activation and

Sl. 2 Naprava v skladu z izumom v delovanju po izbruhu požara.FIG. 2 The apparatus according to the invention in operation after an outbreak of fire.

V predloženem izvedbenem primeru se opisana naprava poslužuje zelo učinkovite in cenovno ugodne detekcije požara, ki sicer ni predmet tega izuma, vendar se sredstev v skladu z izumom za izsesanje in odvod dimnih plinov poslužuje. S tem v zvezi se bomo sklicevali na patentno prijavo DE 198 588 77.1. Na podrobnosti in način delovanja detektiranja požara se zato v sledečem opisu ne bomo podrobneje spuščali.In the present embodiment, the apparatus described above utilizes highly effective and cost-effective fire detection, which is not otherwise the subject of the present invention, but is utilized in accordance with the invention for flue gas extraction and exhaust. In this connection, we will refer to patent application DE 198 588 77.1. Therefore, we will not go into more detail about the details and the way fire detection works in the following description.

Kot je možno razbrati iz sl. 1, so nameščene na predstavljenem odseku prometnega predora 1 trije razpršilni loki 2, od katerih nosi vsak več razpršilnih šob 3. Razpršilne šobe 3 so nameščene premično vrtljivo tako, da megla v področju med 0° in 90° lahko izstopi k voznim smerem prometnega predora 1. Kot je bilo pravkar omenjeno, služijo razpršilne šobe 3 v normalnem obratovalnem stanju za vsesavanje tunelskih plinov in nadaljnje vodenje k neki ne blizu postavljeni detektorski napravi. Razpršilni loki 2 so pritrjeni navpično na vozno smer in oblikovani ustrezno svetlobnemu profilu prometnega predora 1, na katerega ostenje so pritrjeni. Inštalacija naprave zaradi tega ne povzroči nikakršne omejitve višine ali širine prostora, razpoložljivega za promet z vozili. Razpršilni loki 2 so priključeni na vodno omrežje 4. To je možno realizirati brez posebnih dodatnih stroškov, če je vAs can be seen from FIG. 1, three spray arches 2 are mounted on the presented section of the traffic tunnel 1, each of which carries several spray nozzles 3. The spray nozzles 3 are mounted rotatably so that the fog can travel between 0 ° and 90 ° to the traffic directions of the traffic tunnel. 1. As previously mentioned, the spray nozzles 3 are in the normal operating condition for suctioning the tunnel gases and further guiding them to a detector device not close to one. The spray arches 2 are fixed vertically to the drive direction and formed accordingly to the light profile of the traffic tunnel 1 to which the walls are attached. The installation of the device therefore does not impose any restriction on the height or width of the space available for vehicle traffic. Spray arches 2 are connected to the water network 4. This can be realized at no extra cost if in

-7-Ί predoru inštalirano požarno omrežje za požarno vodo.-7-Ί Tunnel Fire Water Network Installed.

Na tleh prometnega tunela 1 je nadalje mogoče razbrati požarno žarišče 5, ki ima za posledico intenzivni razvoj dimnih plinov, le-ti se širijo pretežno v smeri zračnega toka 6, ki prevladuje v prometnem predoru 1, in sicer izpod stropa tunela. Manjši del toka dimnih plinov se premika tudi zračnemu toku 6 nasproti. Razvoj in širjenje dimnih plinov sta označena šrafirano s kratkimi vodoravnimi črticami.It is further possible to detect on the floor of traffic tunnel 1 a fire focus 5, which results in the intense development of flue gases, which propagate mainly in the direction of the air flow 6, which prevails in traffic tunnel 1, from below the tunnel ceiling. A smaller portion of the flue gas stream also moves in the air stream 6 opposite. The development and spread of flue gases is indicated by short horizontal bars.

Način delovanja izuma naj bo v nadaljnjem pojasnjen s pomočjo na sl. 2 prikazane po detekciji požara v funkciji nahajajoče se naprave. Zaradi boljše preglednosti slike je samo pri srednjem razpršilnem loku 2 in pri tem samo pri treh od razpršilnih šob aktivirana funkcija. Domet in smer izstopajoče megle je prikazana z razpršilnim stožcem 7, ki je prikazan kot prostorska rešetkasta mreža. V obratovanju pa se nahajajo vse razpršilne šobe 3 vseh treh razpršilnih lokov 2. Možno je tudi razpoznati, da se aktivni razpršilni lok 2, gledano v smeri zračnega toka 6, nahaja pred požarnim žariščem 5 in da se oba druga aktivna razpršilna loka 2 nahajata izza požarnega žarišča 5. Aktivnost razpršilnih šob 3 je pri vseh razpršilnih lokih 2 ponazorjena s sivim v ozadju nahajajočim se področjem 8 v obliki vrat. Dejansko je učinkovanje razpršilnih šob 2 v obratovanju primerljivo oz. razložljivo tudi z enimi vrati megle. Jasno je v nadaljnjem razpoznavno, da ima razpršilna smer razpršilnega stožca 7 smer dimnega toka, to pomeni torej tudi smer zračnega toka 6. Del razpršilnih šob 3 je usmerjen poševno navzdol. Učinkovanje treh rapršilnih lokov 2 v funkciji meglenih vrat je za tok dimnih plinov različno: pred požarnim žariščem 5 nameščeni razpršilni lokThe method of operation of the invention should be further explained with the help of FIG. 2 shown after fire detection in the function of the located device. For better image clarity, only the middle spray arc 2 and only three of the spray nozzles are activated. The range and direction of the escaping fog is shown by a spray cone 7, which is shown as a spatial lattice. In operation, however, all the spray nozzles 3 of all three spray arcs are in operation. It is also possible to recognize that the active spray arc 2, viewed in the direction of the air stream 6, is located in front of the fire focus 5 and that both other active spray arcs 2 are located behind 5. The activity of spray nozzles 3 is illustrated by the door-shaped gray area 8 in the background of all spray arcs 2. In fact, the operation of the spray nozzles 2 in operation is comparable, or. explicable even with one fog door. It is further apparent from the following that the spray direction of the spray cone 7 has a direction of smoke flow, that is to say also the direction of the air stream 6. The part of the spray nozzles 3 is pointed obliquely downwards. The effect of the three spray arches 2 in the function of the fog door is different for the flue gas stream: a spray arc is installed in front of the fire focus 5

-8-82 ovira prehod dimnih plinov proti zračnemu toku 6. S tem se za gasilce in reševalne ekipe to področje zadržuje v stanju brez dima. Istočasno se dimni plini, še predno pridejo skozi drugi razpršilni lok 2, prav zaradi učinkovanja megle prvič osvobodijo enega dela dima in škodljivih snovi, ki skupaj z meglenimi kapljicami padajo navzdol. Zaradi učinkovanja megle drugega razpršilnega loka 2 se tok dimnih plinov še enkrat osvobodi delcev, ki ovirajo dihanje in vidljivost, in se tudi nadalje ohladi. Postopno čiščenje zaradi učinkovanja megle razpršilnega loka 2 je ponazorjeno z manj gosto šrafuro toka dimnih plinov v področju, ki sledi vsakokratnemu razpršilnemu loku-8-82 impedes the passage of flue gas to the air stream 6. This keeps the area in a smoke-free state for firefighters and rescue teams. At the same time, the flue gases, even before they pass through the second spray arc 2, are freed from the fog for the first time by releasing one part of the smoke and harmful substances which, together with the mist droplets, fall down. Due to the effect of the mist of the second spray arc 2, the flue gas stream is once again released from the particles that impede breathing and visibility and is further cooled. The gradual cleaning due to the effect of mist 2 of the spray arc is illustrated by a less dense flue gas flow pattern in the area following the respective spray arc

2. Ko pridemo mimo tretjega razpršilnega loka 2, se izvede zaradi učinkovanja iz le-tega izstopajoče megle v našem primeru zadnje čiščenje. V predstavitvi je to prav tako pojasnjeno z nadaljnjo razredčitvijo šrafure. V odvisnosti od intenzivnosti razvijanja dimnih plinov kakor tudi od učinkovanja megle se število aktiviranih razpršilnih lokov 2 lahko določa poljubno.2. When we get past the third spray arc 2, the final flushing in our case is done because of the effect of the fog coming out of it. In the presentation, this is also explained by the further dilution of the screwdriver. Depending on the intensity of the flue gas evolution as well as the fog effect, the number of activated spray arcs 2 can be determined arbitrarily.

Claims (6)

1. Izvedba za varovanje pobega in reševanja pred dimom, vročino in onesnaženjem s škodljivimi snovmi iz prostorov z dolgimi požarnimi potmi kot so rudniški objekti, podzemni prometni objekti in podobno, z uporabo meglo proizvajajočih izstopnih naprav, označena s tem, da so izstopne naprave (3), ki so pritrjene vzdolž razpršilnih lokov (2), razvrščene vzdolž celotne dolžine prostora in/ali svoje požarne poti ena za drugo in prečno na smer pobega, odvisno od svetlobnega profila prostora in/ali požarne poti.1. A design for the protection of escape and rescue from smoke, heat and pollution by harmful substances from spaces with long fire paths such as mining facilities, underground transport facilities and the like, using fog-producing exit devices, characterized in that they are exit devices ( 3), which are attached along the scatter arches (2), arranged along the entire length of the space and / or their fire path one after the other and transversely to the escape direction, depending on the light profile of the space and / or fire path. 2. Naprava po zahtevku 1, označena s tem, da so izstopne naprave (3) usmerjene v smer v prostoru in/ali na požarni poti prevladajočih zračnih tokov (6).Apparatus according to claim 1, characterized in that the outlet devices (3) are oriented in the direction of the space and / or the fire path of the dominant air currents (6). 3. Naprava po zahtevku 1 in 2 označena s tem, da razpršilni stožci (7) izstopnih naprav (3) v bližini razpršilnega loka v celoti pokrivajo presek prostora in/ali požarne poti.Device according to claims 1 and 2, characterized in that the spray cones (7) of the outlet devices (3) near the spray arc completely cover the cross section of the space and / or fire path. 4. Naprava po zahtevkih 1 do 3 označena s tem, da so izstopne naprave (3) premično vrtljivo pritrjene na razpršilne loke (2).Device according to claims 1 to 3, characterized in that the outlet devices (3) are pivotably mounted to the spray arches (2). 5. Naprava po zahtevkih 1 do 3The device according to claims 1 to 3 -10-105. Naprava po zahtevkih 1 do 3 označena s tem, da sta predvidena vsakokrat po dva razpršilna loka (2) z vsakič v medsebojno nasprotnih smereh razpršujočimi izstopnimi napravami (3), pri čemer je vodni dovod k razpršilnim lokom preklopij iv.-10-105. Apparatus according to claims 1 to 3, characterized in that two spray arches (2) are provided each time with dispensing outlet devices (3) in opposite directions to each other, the water supply to the switching arches being switched iv. 6. Naprava po zahtevkih 1 do 5 označena s tem, da se v primeru požara aktivira najmanj en razpršilni lok (2) v smeri zračnega toka iz-za požarnega žarišča.Device according to claims 1 to 5, characterized in that in the event of a fire, at least one spray arc (2) is activated in the direction of the air flow from behind the fire.
SI200120023A 2000-04-20 2001-04-07 System for ensuring evacuation and rescue from the effects of smoke, heat and polutants SI20909A (en)

Applications Claiming Priority (2)

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DE2000119537 DE10019537C2 (en) 2000-04-20 2000-04-20 Arrangement to secure the escape and rescue under smoke, heat and pollutants
PCT/DE2001/001385 WO2001080954A1 (en) 2000-04-20 2001-04-07 System for ensuring evacuation and rescue from the effects of smoke, heat and pollutants

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DE10145136A1 (en) * 2001-09-13 2003-04-10 Bahn Station & Service Ag Deut Process and arrangement for the partitioning of fire and smoke in building structures
DE10209871B4 (en) * 2002-03-06 2007-08-09 Kretzschmar, Axel, Dr.Rer.Nat.Habil. Method and arrangement for reducing the smoke and pollutant load
DE10231230B4 (en) * 2002-05-13 2004-07-22 F & B GmbH Feuerschutz & Brandbekämpfung Water spray system for localizing the location of the fire
DE10323355A1 (en) * 2003-05-21 2004-12-09 Kretzschmar, Axel, Dr.Rer.Nat.Habil. Method, arrangement and device for cleaning flowing gases
DE102005008936A1 (en) * 2005-02-26 2006-08-31 Georg Lohmann Mobile air purification system for washing air charged with fine material, especially motor vehicle-derived pollutants, comprises frame with water connection, guide plates, spray heads and regulator

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JPS5636967A (en) * 1979-08-31 1981-04-10 Hochiki Co Fireeextinguishing facility for tunnel
DE19514923C2 (en) * 1995-04-22 1997-08-21 Kretzschmar Axel Dr Rer Nat Ha Procedure for securing escape and rescue under smoke and heat exposure
JP2000176042A (en) * 1998-12-21 2000-06-27 Hochiki Corp Water discharge control system and water discharge control panel
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JP3827489B2 (en) * 1999-10-20 2006-09-27 能美防災株式会社 Water spray head

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JP2003533250A (en) 2003-11-11
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NO20024870L (en) 2002-12-10
DE10019537C2 (en) 2002-03-21

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