Kitchen Range Hood Duct Grease Fire: Exhaust Chase Ignition and Attic Spread¶

A stovetop grease fire flashing into a kitchen range hood transforms a cooking accident into a structural building fire in seconds. Cooking oils reach autoignition between 360 and 370 degrees Celsius (680 and 700 degrees Fahrenheit), where vaporized lipid plumes ignite spontaneously above the pan. When an active exhaust fan runs during ignition, the centrifugal blower operates like an industrial mechanical bellows. The fan draws luminous flames straight into grease-coated mesh filters, the transition collar, and vertical duct runs.

Forced airflow delivers hundreds of cubic feet of atmospheric oxygen per minute into the core combustion zone. Flue temperatures escalate beyond 540 degrees Celsius (1,000 degrees Fahrenheit) almost instantaneously. Physical hazards multiply as fire breaches the canopy mechanical envelope. Residential exhaust ducts travel through concealed wall chases, floor joist cavities, and unconditioned attics before penetrating exterior rooflines.

Funteni yeelenma min bɛ taa ni nɛgɛ ye min bɛ kɛ ni kogo kelen ye, o bɛ tɛmɛ jirisunw kɛrɛfɛyɔrɔw ka tasumabɔyɔrɔ kan, minnu bɛ gazi bɔ ka wuli ni degere 200 ye (degere 392 Fahrenheit). Kanal slip seams minnu ma datugu walima aluminiyɔmu foyi flexibles minnu tɛ sariya kɔnɔ, olu bɛ kari joona funteni degun kɔrɔ. Tasuma-minɛn minnu bɛ degun, olu bɛ so sanfɛlan fɛnw, so sanfɛlanw ani so sanfɛlanw tasuma don yɔrɔ la, u tɛ se ka ye ka bɔ dumunikɛyɔrɔ duguma. O tasuma in dabila bɛ wale teliya de wajibiya walasa ka sɛnɛfɛnw tigɛ, ka masinw ka jibɔ dabila, ani ka jɔli dogolenw lajɛ.

Aw bɛ o kɛ sisan¶

1. Aw bɛ aw ka sigida kɔrɔtɔko nimɔrɔ wele (911 Ameriki ani Kanada, 112 Erɔpu tɔnba bɛɛ kɔnɔ, 999 Angletɛri jamana na) ani k’a fɔ ko dumunikɛyɔrɔ tulu tasuma dɔ sera fiɲɛbɔyɔrɔ ni plafond gɛnni ma, ka ɲɛfɔli kɛ kɔrɔtɔko nimɔrɔw.
2. Aw bɛ kuran tigɛ ka taa fiɲɛbɔlan na o yɔrɔnin bɛɛ du ka ciriw tigɛyɔrɔ la, walima aw bɛ kuran fiyɛlan sama ni kuran bɔyɔrɔ bɛ se ka don a la ka yɔrɔ jan tasumabɔlan na.
3. Aw bɛ tasumamugu sumalanw bɛɛ faga ani ka tobilikɛminɛnw tulu dawolo da ni nɛgɛdaga fla walima pankurun datugulan dɔ sɔgɔli ye ka kɛɲɛ ni a dawolo ye.
4. Aw bɛ tasumafagalan jalen min bɛ se ka ta, n’o bɛ se ka ta, n’o bɛ se ka ta, n’o bɛ se ka ta, n’o bɛ se ka ta, n’o ye B walima K ye, aw bɛ tasumafagalan jalen dɔ fili sanfɛ, ka don wuluwulu minɛyɔrɔ kɔla la ni bɔgɔlan kɔlɔsili ye ka bɔ mɛtɛrɛ 2 la ka se mɛtɛrɛ 3 ma, ka segin kɔfɛ, ka fura in bɔ kɔfɛla kogo la.
5. Aw bɛ so kɔnɔmɔgɔw bɛɛ bɔ sanfɛla so minnu jɔlen don k’a ɲɛsin fɛnɲɛnamafagalanw gɛnni sira jɔlen ma walasa ka lakana fɛnɲɛnamafagalan jɔlen jɛlen dɔ dilan.
6. Aw bɛ a sɛgɛsɛgɛ ka bɔ kɛnɛma duguma yɔrɔ la ni sisi dibiman, bɔgɔdaga jenilen, walima tasuma bɛ bɔ so sanfɛla da la walima so sanfɛlan da la.
7. Aw bɛ so bɛɛ bɔ o yɔrɔnin bɛɛ la ni mankan jugumanba dɔ, jiriw karilen, walima kogo penti min bɛ kurukuru, o ye tasuma baarakɛta dafa framing chase kɔnɔ.

Kɔrɔtɔko jaabiw jatebɔsɛbɛn¶

flowchart TD
    A["Stovetop Grease Tasuma bɛ yeelen bɔ ka don Hood kɔnɔ"] --> B["Aw bɛ Tasuma Secogo teliya jateminɛ"]
    B --> C["Tasuma minnu bɛ Canopy Filters walima Duct Collar kɔnɔ"]
    C --> D["Kuran fanga tigɛ ka kɛ Hood ye Circuit Breaker la"]
    D --> E["Slide Metal Sheet Pan ka tɛmɛ tobilikɛminɛnw basigilen kan"]
    E --> F["Check Duct Sound: Fiɲɛ min bɛ mankan bɔ walima fiɲɛ min bɛ boli?"]
    F -->|"No Roar, Sisi min bɛ kɛ sigida la"| G["Aw bɛ Classe B walima K Extinguisher (Fɛnfagalan) bɔ ka don Intake kɔnɔ"]
    F -->|"Mankan min bɛ mankan bɔ walima kogow bɔli"| H["Active Vertical Chase walima Tasuma Attic"]
    G --> I["Monitor Duct kɛnɛma ni sanfɛla kogo funteni"]
    H --> J["Aw bɛ sigida bɛɛ bɔ yen joona"]
    I -->|"Funteni hakɛ bɛ 50 C (122 F) duguma ."| K["Aw ye tasuma-fanga-kulu ka Thermal Audit makɔnɔ"]
    I -->|"Yɔrɔ minnu ka suma walima So sanfɛlan sisi"| J
    J --> L["Jaabiw kunbɛn kɛnɛma ni Utility Status ye"]

Anatomie ani engineering mechanics ka range hood exhaust systems¶

Kanal tasuma minnu bɛ jɛnsɛn, olu bɛ ɲɔgɔn sɔrɔ k’a ɲɛsin sigida fiɲɛbɔlanw masinfɛnw ma. Cuisini range hood standard kɔnɔ, intake canopy, grease filtration barriers, kuran fiɲɛbɔlan assembly, backdraft damper, transition collar, ani vertical exhaust duct bɛ ban kɛnɛma so sanfɛlan dɔ la. A yɔrɔ kelen-kelen bɛɛ bɛ jɔyɔrɔ danfaralen dɔ Kɛ aerodynamique (aerodynamique) la tobilikɛcogo nɔgɔman waati. O bɛɛ n’a ta, yɔrɔ kelen-kelen bɛɛ fana bɛ danfara danfaralenw jira funteni kɔrɔtɔlen waatiw la.

Intake canopy bɛ tobilikɛ ji bɔlenw ni tulu labɔlenw aerosolw lajɛ ni funteni wulicogo ye. Filɛri minnu bɛ kɛ ni masinw ye, olu bɛ fiɲɛ kɔnɔ tulumafɛnw minɛ sani fiɲɛ ka se fiɲɛbɔlan wotoro ma. Sigida laminiw bɛ ni filɛriw ye minnu bɛ kɛ ni aluminiyɔmu mesh filɛriw ye minnu bɛ kɛ ni fɛn caman ye walima filɛriw ye minnu bɛ kɛ ni nɛgɛ ye min tɛ sɔgɔ.

Aluminiyɔmu mesh filɛriw bɛ tulu minɛ ni impingement ye, nka nɛgɛ finmanw bɛ wuli degere 660 kɛrɛfɛ. Tasuma tilennen bɛ mesh filɛriw tiɲɛ segin 60 kɔnɔ, o bɛ a to tasuma ka yeelen bɔ plenum kɔnɔ. Baffle assemblages inox bɛ se ka funteni kɛlɛ fo ka se degere 1 400 ma (degere 2 550 Fahrenheit), o bɛ tasuma tangacogo ɲuman di masin ma.

Fiɲɛbɔlan lajɛlen bɛ ni ventilateur axiale walima centrifugal wheel ye min bɛ baara kɛ ni 120 volt walima 230 volt bolofara sɛrɛkili ye. Kalo caman tobili kɔfɛ, fiɲɛbɔlan bɛ tulu polimɛri kɔnɔna datugulenw lajɛ. Tobili funteni bɛ triglycérides saturated tobi ka kɛ fɛn ye min bɛ se ka jeni ka tɛmɛ scroll kogow ni impeller blades kan.

Backdraft damper sigilen bɛ blower discharge port sanfɛ walasa ka kɛnɛma jibɔw bali. Convective thermal buoyancy bɛ o damper in kɔrɔta ka da wuli kosɛbɛ flue tasuma waati hali ni ventilateur ma fanga sɔrɔ. Nilon bushings minnu bɛ wuli, olu bɛ damper blade da wuli, ka simini jibɔw sabati.

Fluid dynamique, duct aerodynamique, ani dancɛ lamini fizik¶

Gɛrɛsi aerosolw lamagacogo ka tɛmɛ fɛnɲɛnamafagalanw fɛ, o bɛ tugu core fluid mechanics kɔ. Tobilikɛminɛn minnu bɛ wuli, olu bɛ teliya ka taa sanfɛ ka da funteni wulicogo kan. Ni u gɛrɛla fɛn minɛyɔrɔ la, fiɲɛw bɛ don tansiyɔn dɔgɔya yɔrɔ la, teliya bɛ bonya yɔrɔ min na dawolo dɔgɔyali fɛ.

Kanalw kɔnɔ minnu janya bɛ se milimɛtɛrɛ 150 fo 250 ma, fiɲɛbɔ teliya bɛ bɔ mɛtɛrɛ 5 la ka se mɛtɛrɛ 10 ma segin kɔnɔ (sen 16 fo 33 segin kɔnɔ). O baarakɛcogo teliya ninnu bɛ Reynolds jatew lase minnu ka ca ni 4000 ye, ka cogoyaw sigi sen kan minnu bɛ ɲagami pewu. Fɛnɲɛnɛma minnu bɛ wuli ka wuli, olu bɛ fanga, funteni ani fɛnɲɛnamafagalanw lamaga ka taa kanal laminiw fɛ.

Lipidi jikuruw jɔlen minnu janya bɛ se mikromɛtɛrɛ 0,5 fo 50 ma, olu bɛ laminar sublayer tɛmɛ ni wulikan wulibali ye. Fɛnɲɛnɛma minnu bɛ nɔ bila, olu bɛ nɔrɔ kanal kogow la, ka fara ɲɔgɔn kan ka kɛ filimu jilamaw ye minnu bɛ to senna, u bɛ kɛ sababu ye ka dugukolo sanfɛla sɛgɛn. Fiɲɛ sumalen min bɛ bɔ, o bɛ polimɛriziyɔn funteni ni oksidan cross-linking (oksidan cross-linking) bila sen kan. Asidi tuluma minnu tɛ satura, olu bɛ polimɛri resin caman dilan minnu bɛ siri nɛgɛ galvanisé la, ka fanga caman sɔrɔ fɛnɲɛnamafagalan dilan na min bɛ se ka suma ni izini tulu ye.

Lipid jeni ni acroléine toxicité chimie¶

Dumuni tulumaw tiɲɛni funteni fɛ, o bɛ tasuma jɛnsɛnni jugumanba lase mɔgɔ ma ani ka faratiba lase baga ma. Tobilituluw bɛ kɛ ni triglycérides ye minnu bɛ glycérol ni asidi fatɔ cakɛda saba siri ɲɔgɔn na. Molecules unsaturation (molecules unsaturation) bɛ funteni sabatili ni tasuma-fanga-yɔrɔw fɔ.

Tumu min bɛ sumaya ka tɛmɛ a sisi yɔrɔ kan, o bɛ giliserɔli tigɛli daminɛ ni funteni ye, ka asidi tuluma gansanw ni akɔrɔlɛyini gazi toxic bɔ. Akɔrɔlɛyini bɛ ɲɛgɛnɛsiralabanaw dimi ni a tilayɔrɔ 0,1 ye miliyɔn kelen kɔnɔ, o bɛ kɛ sababu ye ka ɲɛjibɔ ni sɔgɔsɔgɔ jugumanba bila mɔgɔ la. Ni a hakɛ ka ca ni tilayɔrɔ 2 ye miliyɔn kelen na, o bɛ fogonfogonlabana bila mɔgɔ la, o bɛ kɛ sababu ye ka sigibagaw kɛ sebaliya ye miniti damadɔ kɔnɔ.

Ni a tɛmɛna degere 310 kan, funteni karilen bɛ asidi tulumaw tila ka kɛ gazi hidrɔkarbon wulibaliw ye minnu bɛ ɲɔgɔn lajɛ ji funteni sanfɛ. Ni aw magara jenifɛnw na, o bɛ o lafiɲɛbɔlan tasuma don o yɔrɔnin bɛɛ. Autoignition bɛ Sìgi sen kan degere 360 ​​fo 370 (degere 680 fo 700 Fahrenheit). Tigɛ tasuma min janya ye santimɛtɛrɛ 30 ye, o bɛ funteni kilowati 100 fo 250 bɔ, o bɛ canopy sheet metal ni duct grease bila ka flashover teliya la.

Stack effect ani draft bellows thermodynamique¶

Dugukolo jɔlenw bolicogo bɛ tobili tasumaw fanga bonya ni funteni wulicogo ye min bɛ wele ko stack effect. Fan fanga tigɛlen bɛ masin induction bɔ, nka nature buoyancy bɛ gazi funtenimaw bila sanfɛ. Funteni danfara min bɛ gaziw ni kɛnɛma fiɲɛ cɛ, o bɛ tansiyɔn jiginni jɔlenba dɔ lawuli.

Gazi minnu bɛ wuli ka wuli, olu bɛ teliya ka taa sanfɛ ni mɛtɛrɛ 8 fo 12 ye segin kɔnɔ (sen 26 fo 39 segin kɔnɔ). O jiginni bɛ sisi gɛn ka tɛmɛ so sanfɛlan fɛ k’a sɔrɔ a bɛ fiɲɛ duman sama ka tɛmɛ tobilikɛyɔrɔ kan, ka oksizɛni don tasuma da la. Fiɲɛbɔlan minnu bɛ boli, olu bɛ nin jikuru in fara ɲɔgɔn kan, u bɛ fiɲɛ mɛtɛrɛ kubik 17 fo 34 pɔnpe miniti kelen kɔnɔ (sen kubik 600 fo 1200 miniti kelen kɔnɔ) ani ka tasuma degunlenw wajibiya ka tɛmɛ kanal sɔgɔlenw fɛ minnu ma datugu, ka don karamɔgɔya yɔrɔ lakolonw na.

Structural ignition mechanisms kogow gɛnni ni so sanfɛlanw na¶

Sow kɔnɔna dogolenw bɛ range hood duct tasuma kɛ farati ye kɛrɛnkɛrɛnnenya la. Fiɲɛbɔlanw bɛ tɛmɛ kogow gɛnni fɛ minnu jɔlen don ni jiriw ye minnu janya ye milimɛtɛrɛ 38 ni 89 ye. Dugukolo kanw bɛ duguma dingɛw ni sofiti jalenw tigɛ sani u ka don sanfɛyɔrɔ dafalenw na.

Funteni bɛ Bɔ duct kogow la ni conduction, radiation ani convection ye. Conduction bɛ nɛgɛ yɔrɔw sumaya cogo kelen na k’a sɔrɔ kanal kogo minnu bɛ yeelen bɔ, olu bɛ fanga bɔ ka ɲɛsin yiriw ma minnu bɛ kɛ karamɔgɔya la. Fiɲɛ min bɛ lamini chase cavity kɔnɔ, o bɛ funteni convective lase ka taa studs kɛrɛfɛ.

Framing jiriw bɛ tiɲɛ sani tasuma tilennen ka don. Ni a bilala degere 150 sanfɛ (degere 302) o bɛ jiri selulɔzi tiɲɛ, ka sɔrɔ funteni min bɛ tɛmɛ degere 200 kan (degere 392) bɛ kɛ sababu ye ka dugukolo sanfɛla sɔgɔ ani ka karɔbɔni pyrophoric. Funteni min bɛ yeelen bɔ, n’o bɛ sɔgɔsɔgɔninjɛ yɔrɔw gɛlɛya ka tɛmɛ degere 260 kan (degere 500 Fahrenheit) bɛ jɔli yiriw tasuma. So kɔrɔw kɔnɔna na, tasuma-fanga-minɛn tɛ minnu na IRC Sigida R302.11, olu b’a to tasuma bɛ se ka duguma yɔrɔw lamini, ka bɔ so sanfɛlanw kɔnɔ k’a ɲɛsin u yɛrɛ ma.

Duct material vulnerabilities ani kode dɛsɛ yɔrɔw¶

Masinafɛnw minnu sugandira dumunikɛyɔrɔ sigili waati la, olu de bɛ a jira ko kanal sitɛmu bɛ se ka funteni tiɲɛni kɛlɛ waati jumɛn. Fɛn minnu tɛ bɛn, minnu bɛ sigi amatɛriw ka fɛnw labɛnni waati la, olu bɛ tasuma siraw dilan minnu bɛ se ka kɛ balawu ye. Bi sow jɔcogo sariyaw bɛ sariya gɛlɛnw sigi tobilikɛyɔrɔw la.

Duniya kɔnɔ masinw ka sariyasun (IMC) tilayɔrɔba 5nan na ani diɲɛ sigiyɔrɔko sariyasun (IRC) sigida M1503 kɔnɔ, tobilikɛminɛnw ka kan ka tugu sariya gɛlɛnw kɔ: - Ducts ka kan ka kɛ nɛgɛ galvanizelen ye, nɛgɛ min tɛ sɔgɔ, walima nɛgɛ ye, ka sɔrɔ papiye flexible, vinyl ani PVC tubes dagalen don. - Kɔnɔnatumuw ka kan ka kɛ ni kɔnɔna kogow ye minnu ka nɔgɔn walasa tulu kana don a la. - Jogindaw ka kan ka lap fiɲɛbɔ sira fɛ, ka siri ni masin ye, ka u datugu ni papiye walima mastik ye min funteni ka bon. - Dumunikɛyɔrɔw ka kan ka fiɲɛbɔ kɛnɛma k’a ɲɛsin u ma, wa u man kan ka ban abada sanfɛlanw kɔnɔ, jirisunw kɔnɔ, walima kogow kɔnɔ.

Aluminiyɔmu ondugulen flex duct bɛ tiɲɛ joona tulu tasuma waati. Tasuma minnu bɛ jeni ni degere 800 ye (degere 1 472), olu bɛ milimɛtɛrɛ 0,04 papiye wuli sekɔndi 20 jukɔrɔ, ka lafiɲɛ jenilenw fiyɛ kabiniw kɔnɔ. Particleboard kabiniw bɛ tasuma minɛ joona, ka bonya ka kɛ so tasuma ye.

Fastener sugandili bɛ farati juguw lase mɔgɔ ma. Milimɛtɛrɛ 25 (insi 1) juru jan minnu bɛ don tulubɔlanw kɔnɔ, olu bɛ minɛyɔrɔw dilan minnu bɛ tulu nɔgɔlenw lajɛ ani ka tasuma don tasuma waatiw la. Kunnafonidila ka duct tape bɛ dɛsɛ barisa nɔrɔlanw bɛ ji bɔ degere 65 la, ka sisi bɔ kogo la yɔrɔ lakolonw na.

Sɛgɛsɛgɛli dɛsɛ cogoyaw: tobili tasumaw bɛ wuli cogo min na ka kɛ duct infernos ye¶

Ni aw ye dumunikɛyɔrɔ tulu tasuma wulicogo tigitigi dɔn, o bɛ teliya ka dankarili latigɛw ɲɛminɛ. Tobilikɛminɛn tasuma bɛ wuli baarakɛcogo saba danfaralenw fɛ, minnu kelen-kelen bɛɛ bɛ dusukunnataw taamasiyɛn kɛrɛnkɛrɛnnenw jira.

Taabolo fɔlɔ : Tobilikɛminɛnw tasuma don sigida la¶

Tobilikɛtulu bɛ a yɛrɛ tasuma don tobilikɛminɛnw kɔnɔ, ka tasuma bɔ min janya bɛ se milimɛtɛrɛ 200 fo 600 ma. Funteni min bɛ yeelen bɔ, o bɛ se ka kanpaɲi filɛriw kɛ, k’a sɔrɔ funteni bɛ se degere 150 fo 250 ma (degere 302 fo 482). Mankanw ye sɔgɔsɔgɔninjɛ nɔgɔlen ye ani tulu daji. Ni aw ye nɛgɛ datugulan dɔ sɔgɔ pankurun kan walima ka B kulusi tasumafagalan bila, o bɛ tasuma bali sani kanal ka don a la.

Taabolo 2nan : Filɛri doncogo ani canopy flash¶

Ni a ma se ka damatɛmɛ joona, o bɛ kɛ sababu ye ka funteni wuli ka mesh filɛriw wuli walima ka tulu tasuma don baffles kan, ka don fiɲɛbɔlan so kɔnɔ. Motɛri minnu bɛ ni jiriw ye minnu bɛ sumaya, olu bɛ wuli, ka kuran sisi gɛlɛn bɔ. Boli kondansɛri minnu bɛ pɛrɛn, olu bɛ dielektriki sisi bɔ, tasuma bɛ yeelen bɔ ka don kanal minɛyɔrɔ kɔla la.

Taabolo 3nan : Chase vertical ignition ani attic breach¶

Tasuma minnu bɛ don wulilanw jɔlenw na, olu bɛ mankanba dɔ lawuli min ka dɔgɔn ka bɔ gazi bonya teliya la. Nɛgɛdaga bɛ bonya milimɛtɛrɛ 15 fo 25 (sen 0,6 fo 1,0) ka tɛmɛ mɛtɛrɛ 3 (sen 10) boli kan ni degere 600 ye. Sumaya degun bɛ jogindaw tigɛtigɛ, ka tasuma bɔ kogow kɔnɔ. Blistering drywall ani sisi bɔli ka bɔ baseboards la, o bɛ tasuma active structural fire sinsin.

Tasumafagalanw sugandili ani taktikaw damatɛmɛni mekanikiw¶

Ni aw ye tasumafagalan jugu bila tasuma na min bɛ baara la, o bɛ se ka kɛ sababu ye ka jirisunw tasuma wuli walima ka baarakɛla jogin kosɛbɛ. Dutigiw ka kan ka tasumafagalanw farikolo jɛɲɔgɔnya tigitigiw faamuya tasuma jɔlenw kan minnu bɛ kɛ ni tulu ye.

K kulusi furakisɛ jilamaw bɛ baara kɛ ni potasiyɔmu asetati walima potasiyɔmu sitɛrɛti jilamaw ye. Ni potasiyɔmu kɔgɔw fiyɛra tulu sumalen kan, u bɛ kɛ sapon ye, ka kɛ safunɛ ye min bɛ kɛ ni fomu ye. O fomu in bɛ oksizɛni datugu ka sɔrɔ ji min bɛ lafiɲɛ, o bɛ tulu nɛnɛ ka tɛmɛ a yɛrɛ tasuma hakɛ kan. Mist nozzle min teliya ka dɔgɔn, o bɛ duguma hood plenum datugu k’a sɔrɔ a ma ji jenilen jɛnsɛn.

Sigida la, kemikali jalenw fagalanw bɛ baara kɛ ni bikarbonati sodiyɔmu (BC-rated) walima monoammonium phosphate (ABC-rated) ye. Bikarbonati sodiyɔmu bɛ cakɛda hɔrɔnyalenw tigɛ jeni waati. Ni bikarbonati sodiyɔmu bɛ tasumabɔyɔrɔw gosi minnu funteni ka bon, a bɛ faran ka kɛ karɔbɔni sodiyɔmu, watara ani gazi ɲuman ye. O gazi bɔli teliyalen in bɛ tasuma faga k’a sɔrɔ fɛnɲɛnamafagalanw bɛ funteni fanga minɛ, ka bɔgɔbɔgɔ teliya lase.

Fositɛri monoamoniyɔmu (ABC furakisɛ jalen) bɛ tasuma kɔfɛ saniya gɛlɛya juguw lase mɔgɔ ma. Ni a sumana ka tɛmɛ degere 180 kan, o mugu bɛ wuli ka kɛ asidi polifosifɔriki wulilen ye. O asidi min bɛ i n’a fɔ gilasi, o bɛ siri kosɛbɛ nɛgɛ min tɛ sɔgɔ, nɛgɛdaga ani kuran fɛnw na. Fiɲɛ nɛnɛ bɛ fara o asidi tolen in kan walasa ka nɛgɛw tiɲɛ tile damadɔ kɔnɔ, o bɛ kɛ sababu ye ka furakɛli kɛ ni kemikɛli ye.

Gazi ɲuman (CO2) fagalanw bɛ a jira ko u tɛ baara kɛ ni tasuma ye min bɛ kɛ ni kanal jɔlenw ye. CO2 bɛ a jigi da oksizɛni jiginni kan min tɛ wuli. Jibɔyɔrɔ barikama minnu bɛ wuli ka bɔ fɛnɲɛnamafagalanw kɔnɔ minnu bɛ baara kɛ, olu bɛ gazi ɲuman bɔ so sanfɛlan na segin kɔnɔ, o bɛ kɛ sababu ye ka tulu sumalenw datugu kokura o yɔrɔnin bɛɛ.

Tactical mitigation senfɛ-senfɛ : k’a ta tasumabɔlan na ka taa a bila so sanfɛlan na¶

Cuisini tulu tasuma min donna fiɲɛbɔyɔrɔ la, o ɲɛnabɔli bɛ taabolo labɛncogo dɔ de wajibiya, min bɛ bila jɔyɔrɔ fɔlɔ la. Aw bɛ nin baarakɛcogo ninnu tugu ɲɔgɔn kɔ walasa ka se ka kunbɛnni dafalen sɔrɔ ka sɔrɔ ka ɲɛnamaya lakana.

Dakun fɔlɔ : Fanga danfara ni dugukolo sanfɛla sɔgɔli¶

Aw bɛ fiɲɛbɔ fangamaw dabila sekɔndi 30 kɔnɔ. Aw bɛ aw yɛrɛ tanga ka maga hood butɔniw la ni tasuma bɛ sɔgɔsɔgɔninjɛ la walasa ka jeninida jugumanw bali. Aw bɛ taa kafoda la ani ka dumunikɛminɛnw faga, ka masin fiɲɛ doncogo jɔ fiɲɛbɔlan kɔnɔ.

Aw bɛ tobilikɛminɛnw tasuma sumaya ni aw bɛ nɛgɛdaga walima a datugulan girinman dɔ wuli ka a kɛ ka a kɛ tigadɛgɛ da la. Slide bɛ fiɲɛ bilali bali min bɛ tulu jenilen sɔgɔ. Aw bɛ datugulan to a nɔ na miniti 45 kɔnɔ walasa ka a bali ka tasuma don kokura.

Fasa 2nan : Pikiri kɛli ni fɛɛrɛ ye min bɛ kɛ ni tasumafagalan ye¶

Aw bɛ kɔla tasumaw ɲɛnabɔ ka bɔ mɛtɛrɛ 2 la ka se mɛtɛrɛ 3 ma (sen 6 fo 10) kɔfɛ. Aw bɛ tasumafagalan lakanani pini sama ka a laɲini ka a ɲɛsin jirisunba jukɔrɔla ma ni degere 45 ye ka kɛɲɛ ni kɔfɛla kogo ye min tɛ sɔgɔ. Aw kana aw ɲɛsin abada ka ɲɛ ka don fɛnɲɛnamafagalan da la, o min bɛ tulu jenilen bɔn.

Ni aw ye o fɛn in bɔ kɔfɛ kogo la, o bɛ kemikɛli sankaba belebeleba dɔ jɛnsɛn, min bɛ sama ka don fiɲɛbɔlan wotoro ni jibolisira bolicogo la. Aw bɛ a bɔ a la segin 2 kɔnɔ fo ka se a bɔli ma ka bɔ sisi nɛrɛma na ka kɛ mugu jɛman ye.

Dakun 3nan : Structural chase ani attic kɔlɔsili¶

Aw bɛ yɔrɔ dogolenw sɛgɛsɛgɛ canopy tasuma gosili kɔfɛ. Aw bɛ drywall lajɛ chase jɔlen sira fɛ ni aw bolo lankolon kɔ ye. Funteni min ka ca ni degere 50 ye (degere 122 Fahrenheit) walima penisilini min bɛ kurukuru, o bɛ a jira ko stud charring active.

Aw bɛ kɛnɛma so sanfɛlanw sɛgɛsɛgɛ ka bɔ duguma. Sisi walima sɔgɔsɔgɔninjɛ minnu bɛ bɔ so sanfɛlanw walima sofiti fiɲɛbɔyɔrɔw la, olu b’a jira ko tasuma ye fiɲɛbɔlan tiɲɛ ka don so sanfɛla la. Aw bɛ aw bɔ o yɔrɔ la joona ni structural chase heat walima attic sisi bɔra.

Dakun 4nan : Siti sabatili ani baarakɛlaw boloci¶

Aw bɛ kɔnɔna daaw datugu ka aw to mɔgɔw la walasa ka sisi bila yɔrɔw la ani ka dan sigi oksizɛni sɔrɔli la. Aw bɛ jamalajɛ lamini dɔ mara min ni boon cɛ ye mɛtɛrɛ 15 ye a dɔgɔyalenba la. Tasuma-fanga-jɛkulu minnu bɛ na, olu fɔ ka surunya tasuma-fanga-minɛnw sendoncogo kan, tasuma-fanga-minɛnw bilali, kuran tigɛcogo, ani gɛnni sira farikoloma min bɛ tɛmɛ o jɔli fɛ.

Baarakɛminɛnw ni sɛgɛsɛgɛli minɛnw jatebɔsɛbɛn bɛɛ lajɛlen¶

Range hood duct tasuma ni a jɔcogo kɔfɛko ɲɛnabɔli n’a jateminɛni bɛ baarakɛminɛn kɛrɛnkɛrɛnnenw ni sɛgɛsɛgɛli minɛnw de wajibiya. Nin minɛn ninnu lisɛli bɛ farikolo baarakɛminɛnw ɲɛfɔ minnu ka kan ka kɛ kɔrɔtɔko jaabiw la, funteni jateminɛni na, ani tasuma kɔfɛ masinw labɛnni na.

Sanfɛla sɛgɛsɛgɛli lakanani ni jɔli funteni jateminɛ¶

Ni dumunikɛyɔrɔ tasuma dabila joona ani ni mɛnni mankan tɛ yen, ni kogo jalenw kurukuru yelenw tɛ, walima ni so sanfɛla sisi tɛ yen, a ka kan ka jɔcogo sɛgɛsɛgɛli fɔlɔ kɛ. Sotigiw ka kan ka lakana sariya gɛlɛnw labato sani u ka so sanfɛla dondaw walima so sanfɛyɔrɔ da wuli.

Aw bɛ funteni sabatili sɛgɛsɛgɛ ka sɔrɔ aw ma so sanfɛla danw tiɲɛ ni piromɛtiri infrarouge ye: - Aw bɛ plafond drywall sɛgɛsɛgɛ exhaust chase sira fɛ, yɔrɔ min na funteni bɛ bɛn so lamini fiɲɛ ma. - Sigida kalanni minnu bɛ tɛmɛ degere 35 kan (degere 95 Fahrenheit) o ​​b’a jira ko funteni bɛ mara karamɔgɔya kɔnɔna na. - Joli faralen ɲɔgɔn kan sankanso dondaw la, o bɛ jisuma jeli dafa, o bɛ kɛ sababu ye ka tasuma-fanga-sɛgɛsɛgɛli kɛ tasuma-fanga-mɔgɔw fɛ sani u k’a fɔ ko yɔrɔ lakananen don.

Tasuma kɔfɛ kiritigɛlaw ka sɛgɛsɛgɛli, kanal caman cili, ani saniya sariyaw¶

Kanal tasumako dɔ kɔfɛ min sɛgɛsɛgɛra, fɛnɲɛnamafagalan bɛɛ ka kan ka jate i n’a fɔ a jɔcogo tiɲɛna fo ka se a ka seere ma masin baarakɛla dɔ fɛ min ka lakɔliso sɛbɛn bɛ a bolo ani sigida sow sɛgɛsɛgɛlikɛla fɛ. Ni aw ye range hood baara min ye kɔnɔna tasuma sɔrɔ, o bɛ faratiba lase kuran tasuma filananw ma, gazi bɔli bagajiw la, ani masinw tiɲɛni jugumanba.

Masina tiɲɛni ni yɔrɔw jateminɛni¶

Fɛn o fɛn bɛ tasuma sira la, o bɛɛ ka kan ka sɛgɛsɛgɛli kɛ kosɛbɛ kiritigɛlaw fɛ: - Range hood blower motor: Funteni bɛ biriki tulu tiɲɛ, ka winding insulation tiɲɛ, ka funteni tigɛyɔrɔw wuli. Motɛri tiɲɛnenw baara bɛ farati lase kuran tasuma ma min bɛ mɛn, o bɛ kɛ sababu ye ka fiɲɛbɔlan caman cili kɛ pewu. - Damper kɛcogo : Damper blades (damper) minnu kurulen don, olu bɛ da siri kosɛbɛ, o bɛ ji ni jikuruw wele. Spring tempering tununnen bɛ flappers bali ka datugu gravité walima ressort tension kɔrɔ. - Duct joints and fasteners: Sumaya bonya bɛ juruw lajɔ ani ka jogindaw datugulanw kɛ lafiɲɛbɔlanw ye. Kanal yɔrɔ o yɔrɔ bɛ nɛgɛ kulɛri caman cili jira, ka zinki bulu bɔ, walima ka nɔgɔ bɔli jira jirisunw na, o ka kan ka wuli ni nɛgɛ pipe gɛlɛn ye min bɛ se mɛtɛrɛ 26 ma. - Jiriw jɔcogo : Kalansen minnu bɛ sanfɛla sɔgɔli jira ka tɛmɛ milimɛtɛrɛ 3 kan (insi 0,12) o bɛ jɔli jateminɛ de wajibiya. Lɔgɔ minnu jenilen don, olu tɛ doni ta, tuma caman na, o bɛ kɛ sababu ye ka balimamuso joistw wajibiya sigida sow jɔcogo sariyaw kɔnɔ.

Nɔgɔ bɔli ni fɛn tolenw labɛnni¶

ABC tasumafagalan bɔli bɛ a ɲini ka kemikɛli kɛ ni a yɔrɔw nɛnɛna. Aw bɛ ji sumalen ni bikaribonati sodiyɔmu walima amoniyɔmu jilama ɲagami ɲɔgɔn na walasa ka fositɛri monoamoniyɔmu asidilama bali. Aw bɛ mugu lafiyalenw labɔ ni HEPA-filtered vacuum ye, aw bɛ aw yɛrɛ tanga du kɔnɔ fɛnɲɛnamafagalanw ma minnu bɛ buguri finmanw bɔ ka taa ɲɛnamaya yɔrɔw la. Aw bɛ nɛgɛ yɔrɔw ko ni furaji ye min bɛ a kɛ fɛn ye min tɛ fɛn kɛ, ka u ko ni ji sanuman ye, ka dumuni minnu bɛ kɛnɛ kan, olu fili.

Bana kunbɛnni ladonni ni sɛgɛsɛgɛli waatibolodalenw¶

Aw bɛ ladonni waatibolodacogo gɛlɛnw waleya minnu bɛ bɛn jamana tasuma lakanani jɛkulu (NFPA) ka sariyaw ma: - Filɛtiriw saniya: Aw bɛ bafalan walima mesh filɛriw ko tile 30 o tile 30 sow kɔnɔ minnu bɛ tobi don o don. Aw bɛ filɛriw su degreaser kɔnɔ walima ka baffles inox boli ka tɛmɛ minɛnko cycle funteni fɛ. - Canopy plenum degreasing: Tile 90 o tile 90, aw bɛ kɔnɔna plenum, tulu bɔyɔrɔ, ani fiɲɛbɔlan so min bɛ se ka sɔrɔ, aw bɛ o ko ni citrus degreaser ye. - Kɛnɛma so sanfɛlanw bɔli : Aw bɛ kɛnɛma so sanfɛlanw lajɛ san o san walasa ka furabuluw, densow ani wuluwuluw bɔ, ka flaburuw lamagacogo sɛgɛsɛgɛ. - Tobilikɛminɛnw damatɛmɛcogo otomatiki : Aw bɛ tobilikɛminɛnw fagayɔrɔ otomatikiw sigi sigiyɔrɔw la minnu bɛ mugu bɔ ni jɛgɛnw bɛ wuli ni degere 180 fo 200 ye (degere 356 fo 392 Fahrenheit).

Masina kode minnu bɛ mara caman kɔnɔ ani sigicogo sariyaw¶

Cuisini fiɲɛbɔlanw sigili n’u dilancogo bɛ a ɲini ka labato kosɛbɛ diɲɛ kɔnɔ, jamana kɔnɔ ani dugubaw ka so jɔcogo sariyaw la. Nin sariya ninnu faamuyali b’a jira ko kanal minnu jɔra kokura, olu bɛ se ka funteniko nataw kɛlɛ, wa u bɛ bɛn minisiriso ka sigicogo seereyaw ma.

Etazuni jamana na, sigiyɔrɔw ka dumunikɛyɔrɔw ka fɛnɲɛnamafagalanw bɛ labɛn ka kɛɲɛ ni diɲɛ sigiyɔrɔko sariya (IRC) tilayɔrɔba 15nan ye ani diɲɛ kɔnɔ masinw ka sariyasun (IMC) tilayɔrɔba 5. Siginiden M1503.2 b’a fɔ ko jibolisiraw ka kan ka kɛ nɛgɛ galvanizelen ye min kogo nɔgɔlen don, nɛgɛ min tɛ sɔgɔ, walima nɛgɛ min bɛ ni kɔjibɔlanw ye, ka kanalw bali kosɛbɛ. Siginiden M1503.6 bɛ fiɲɛbɔlanw wajibiya ka ɲɛsin fɛnɲɛnamafagalanw ma minnu bɛ sɛgɛn ka tɛmɛ mɛtɛrɛ kubik 11 kan miniti kɔnɔ (sen kubik 400 miniti kɔnɔ). Nin makiyaji fiɲɛbɔlan in bɛ siri ni kuran ye ni kafo ye walasa ka sow degun faratilenw bali.

Kanada jamana na, sigiyɔrɔw fiɲɛbɔ bɛ don Kanada jamana ka sow jɔcogo sariya (NBC) tilayɔrɔba 9nan kɔnɔ.Sigida 9.32.3 b’a fɔ ko fiɲɛbɔlan minnu bɛ bɔ kɛnɛma, olu ka kan ka kɛ fɛn ye min tɛ jeni, wa u ka kan ka taa kɛnɛma. Marabolow ka sariyasunw bɛ o sariyaw jira, u bɛ pibilikiw bali minnu bɛ se ka wuli ka bɔ u nɔ na, ​​wa u bɛ nɛgɛ gɛlɛnw wajibiya ka tɛmɛn so sanfɛla nɛnɛmanw fɛ walasa ka tuluw bali ka wuli.

Angletɛri ni Erɔpu tɔnba kɔnɔ, sɔgɔsɔgɔninjɛ sariyaw bɛ tugu sɛbɛn F min dagalen don ani Erɔpu sariya EN 13141-3 kɔ. Angilɛw ka sariyaw BS 5925 ani BS 5422 bɛ fiɲɛbɔ hakɛw ni fɛnɲɛnamafagalanw tangacogo ɲɛnabɔ so sanfɛyɔrɔw la minnu ma sumaya. Yɔrɔ minnu na jibolisiraw bɛ tasuma faranfasilanw tigɛ denbaya caman ka sow kɔnɔ, sow jɔcogo sariyaw b’a ɲini intumescent dampers sɛbɛnw fɛ minnu sɛgɛsɛgɛra walasa ka tasuma jɔlen jɛnsɛnni dabila.

Ɲininkali minnu bɛ kɛ tuma caman na¶

Yala ne bɛ se ka n ka range hood saniya ani ka baara kɛ n’a ye kokura duct grease tasuma kɔfɛ wa?¶

Aw tɛ se ka baara kɛ ni range hood ye kokura lafiya la kanal tasuma kɔfɛ ni masin ni kuran lakanani sɛgɛsɛgɛli dafalen ma kɛ ni fɛɛrɛtigi ye min ka lakɔliso sɛbɛn bɛ a bolo. Funteni fanga min ka bon fiɲɛbɔlan so kɔnɔ, o bɛ kuran motɛri wulilenw tiɲɛ, ka plastiki sirilanw wuli, ka biriki tuluw tiɲɛ, ka kɛ sababu ye ka arcing jugumanw ni kuran tasuma faratiw lase a ma ni fanga seginna o yɔrɔ la. Funteni bɛ kɔfɛla damper kɔnɔna wuli ani ka filɛri nɔfɛtaama siraw tiɲɛ, o bɛ fiɲɛbɔ ni filɛri kɛcogo ɲuman bali ni masinw ye. Ni tasuma donna kanal jɔlen kɔla la, kanal bolicogo bɛɛ ka kan ka kɛ ni kamera ye walasa ka a lajɛ ni fɛnɲɛnamafagalanw faralen don ɲɔgɔn kan, wa a ka c’a la, fiɲɛbɔlan ka kan ka wuli ka bɔ a nɔ na walasa ka lakana nataw sɛgɛsɛgɛ.

Mun na n ka range hood exhaust fan ye tasuma juguya sanni a k’a sama ka bɔ so kɔnɔ?¶

Cuisini range hoods dilannen don dɔrɔn walasa ka fiɲɛ, ji, ani tobili kasa minnu ka dɔgɔn, olu bɔ, u tɛ kɛ ka tasuma bɔ min bɛ baara kɛ. Ni fiɲɛbɔlan dɔ bɛ boli tulu tasuma baarakɛtuma na, fiɲɛbɔlan min bɛ kɛ ni santirifugal ye, o bɛ kɛ i n’a fɔ masin ka bɔgɔdaga, ka fiɲɛ kɔnɔ oksizɛni kura sen kubik kɛmɛ caman sama miniti kelen kɔnɔ ka taa tulu basigilen jenilen kɔnɔ. O jiginni fanga la, o bɛ jeni teliya teliya kosɛbɛ, ka tasuma janya caya siɲɛ saba, ka fiɲɛ sumalenba bila ka don fɛnɲɛnamafagalan jɔlen kɔnɔ. Ni fiɲɛbɔlan donna, fiɲɛbɔ bɛ tulumafɛnw wuli ka taa pibiliki kɔnɔna kogow la, ka tulu kɔrɔw tasuma don ani ka tasuma jɛnsɛn kogow gɛnni ni so sanfɛlanw kɔnɔ.

Danfara jumɛn bɛ Classe B, Classe K ani Classe ABC ni ɲɔgɔn cɛ tasuma-fanga-minɛn min bɛ kɛ kanal tasuma na?¶

K kalasi kemisɛri jilamaw bɛ baara kɛ ni jilama ye min bɛ kɛ ni alkali ye, o bɛ kɛ ni tobilikɛtulu funteni ye sapon kɛli fɛ, ka fogonfogon belebeleba dɔ dilan, safinɛ bɛ min na, o bɛ tulu nɛnɛ ani ka tasuma dabila k’a sɔrɔ a ma tulu jilama jɛnsɛn. B kulusi kemikɛlifɛn jalenw bɛ baara kɛ ni bikarbonati sodiyɔmu mugu ye walasa ka kemikɛli jeni walew tigɛ, ka tasuma gosi joona k’a sɔrɔ u ma to fɛn ye min tɛ fɛn tiɲɛ dumunikɛminɛnw na. ABC kalasi tasumafagalanw bɛ baara kɛ ni fositɛri monoamoniyɔmu mugu ye, o bɛ tasuma min bɛ fɛn caman na, o bɛ se ka tasuma minɛ ka ɲɛ, nka a bɛ wuli ka kɛ tolen jɛman ye min bɛ nɔrɔ, asidi caman bɛ min na, min bɛ nɛgɛ inox, nɛgɛdaga, ani kuran sɛrɛkiliw tiɲɛ ni a ma kɛ fɛn ye min tɛ fɛn wɛrɛ ye pewu baara kɛlen kɔfɛ.

Ne bɛ se k’a dɔn cogo di ni range hood duct tasuma dɔ jɛnsɛnna ne ka so sanfɛlan kɔnɔ k’a sɔrɔ ne ma so sanfɛla da wuli?¶

Aw bɛ se ka sankanso tasuma jɛnsɛnni dɔn ni aw ye kɛnɛma so sanfɛlanw kɔlɔsi, ka jɔli mankan danfaralenw lamɛn, ani ka kɔnɔna kogo funteni lajɛ kanal gɛnni sira fɛ. Aw bɛ taama kɛnɛma ka aw ka so sanfɛla lajɛ: ni dibi, degun bɛ sisi walima bɔgɔdaga minnu bɛ bɔ so sanfɛlan da la, sofiti fiɲɛbɔyɔrɔw la, walima jirisunw da la sanni ka bɔ nɛgɛ bɔyɔrɔ bulama dɔrɔn na, tasuma donna so sanfɛlan karamɔgɔya la. So kɔnɔ, mankan min bɛ to senna ni mankan dɔgɔman ye min bɛ i n’a fɔ jet motɛri, jiri mankanw bɛ bɔ, walima kogo jalen min bɛ kurukuru ka tugu ɲɔgɔn kɔ jɔlen sira kan, o b’a jira ko jɔli jeni min bɛ baara la. Aw kana so sanfɛla dondaw da wuli abada ni aw bɛ sigasiga sankanso tasuma na, barisa ni aw ye oksizɛni kura don a kɔnɔ, o bɛ se ka kɛ sababu ye ka kɔfɛla faga.

Dɛmɛ fɔlɔ seereyaw¶

So tasumaw, sisi fiyɛli kɔrɔtɔko, ani jeninida jugu minnu bɛ sɔrɔ ɲɔgɔn fɛ, olu ɲɛnabɔli bɛ gɛlɛya degecogo ɲuman de wajibiya, min bɛ kɛ ni bolo ye. Lakanali gafew kalanni bɛ faamuyali jɔnjɔn di, nka kɔrɔtɔko degeliw simulated bɛ farikolo farikolo hakilijagabɔ jɔ min ka kan ka kɛ walasa ka wale kɛ kosɛbɛ hakili degunba kɔnɔ. An b’a ɲini aw fɛ kosɛbɛ aw ka aw tɔgɔ sɛbɛn dɛmɛ fɔlɔ, CPR, ani sigida tasuma lakanani kalan na min sɛgɛsɛgɛlen don, jɛkulu minnu lakodɔnnen don i n’a fɔ Ameriki Croix Rouge, St John Ambulance, Kanada Croix Rouge, walima aw ka sigida lamini tasumako ɲɛmɔgɔso. Bololabaara kalanw bɛ tasumafagalan bilali fɛɛrɛ ɲumanw kalan, ka funteni jeninida sabati, ka fiɲɛbɔyɔrɔw ɲɛnabɔ gazi monokisidi sɔrɔtuma na, ani denbayaw bɔli baara kɛcogo ɲuman.

Sosow sɛgɛsɛgɛra¶

• Jamana tasuma lakanani tɔnba (NFPA) 96: Jagokɛlaw ka tobili baara fiɲɛbɔlanw ni tasuma lakanani sariyasun
• Jamana tasuma lakanani tɔnba (NFPA) 10: Tasumafagalanw tali sariyasun
• Ameriki tasumako ɲɛmɔgɔso (USFA): Sigida tobili tasuma lakanani ni a kunbɛnni sariyaw
• Duniya sariyasunba (ICC): Duniya sigida sariyasun (IRC) Sapitiri 15nan, Exhaust Systems
• Duniya Kode Conseil (ICC): Duniya Mekaniki Kode (IMC) Sapitiri 5nan, Exhaust Systems
• Underwriters Laboratories (UL) Standard 507: Kuran fiɲɛbɔlanw ni Range Hood lakanani seereyaw
• Consumer Product Safety Commission (CPSC): Range Hood ani Cuisini minɛnw tasuma lakanani laadilikanw
• Duniya tasumako ɲɛmɔgɔw ka tɔnba (IAFC): Tasuma binkanni sigida jɔcogo la ani yɔrɔ dogolenw fɛɛrɛw

Gafe minnu bɛ tali kɛ o ko la¶

• So tasuma bɔli ani ɲɛnamaya
• Electrical fire and sparks containment
• Attic tasuma fiɲɛbɔlan ni jalen fiɲɛbɔlan kɔrɔtɔlenw
• So tasuma bolicogo labɛnni ani sisi lasɔminiw
• So tasumafagalan sugandili n’a bilali