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Litanka tsa SCBA li Tlatsoa ka Eng?

Tanka ea Self-Contained Breathing Apparatus (SCBA).s ke lisebelisoa tsa bohlokoa tsa polokeho tse sebelisoang liindastering tse fapaneng, ho kenyeletsoa ho tima mollo, ts'ebetso ea pholoso, le ho sebetsana le thepa e kotsi. Litanka tsena li fana ka phepelo ea moea o phefumolohang ho basebelisi ba hlokang ho sebetsa libakeng tseo moea o silafetseng kapa maemo a oksijene a leng tlase haholo. Ho utloisisa engSCBA tankali tlatsitsoe 'me lisebelisoa tse sebelisoang ho li haha ​​li bohlokoa bakeng sa ho ananela ts'ebetso ea tsona le ho netefatsa hore li sebelisoa ka katleho maemong a tšohanyetso.

EngTanka ea SCBAs E na le

SCBA tankas, tse tsejoang hape e le li-cylinders, li etselitsoe ho boloka le ho fana ka moea o hatelitsoeng kapa oksijene ho motho ea e roetseng. Mona ke ho shebisisa litaba le kaho ea litanka tsena:

1. Moea o Hatelitsoeng

BoholoSCBA tankas li tletse moea o petelitsoeng. Moea o hatelitsoeng ke moea o hatelitsoeng ho ea boemong bo phahameng ho feta khatello ea sepakapaka. Khatello ena e lumella moea o mongata hore o bolokoe ka tankeng e batlang e le nyane, e leng se etsang hore e sebelisoe maemong a fapaneng. Moea o hatelitsoeng ka hareSCBA tankas hangata e na le:

  • Oksijene:Hoo e ka bang 21% ea moea ke oksijene, e leng peresente e tšoanang le e fumanoang sepakapakeng boemong ba leoatle.
  • Nitrogen le Ligase tse ling:79% e setseng e entsoe ka naetrojene le mesaletsa ea likhase tse ling tse fumanehang sepakapakeng.

Moea o hatelitsoeng ka hareSCBA tankas e hloekisoa ho tlosa litšila, ho etsa bonnete ba hore e bolokehile bakeng sa ho hema esita le libakeng tse silafetseng.

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2. Oksijene e hatelitsoeng

Likarolong tse ling tse khethehileng tsa SCBA, litanka li tlatsoa ka oksijene e hatelitsoeng e hloekileng ho fapana le moea. Likarolo tsena li sebelisoa maemong a ikhethileng moo ho hlokahalang oksijene e ngata kapa moo boleng ba moea bo senyehileng haholo. Oksijene e hatelitsoeng hangata e sebelisoa ho:

  • Maemo a Tšohanyetso a Bongaka:Moo oksijene e hloekileng e ka hlokehang bakeng sa bakuli ba nang le mathata a ho hema.
  • Ts'ebetso e phahameng ea Altitude:Moo maemo a oksijene a leng tlase, 'me oksijene e ngata e molemo.

Khaho eaTanka ea SCBAs

SCBA tankas li etselitsoe ho mamella likhatello tse phahameng le maemo a thata. Khetho ea thepa e sebelisoang ha ho hahoa litanka tsena ke ea bohlokoa bakeng sa ts'ebetso le polokeho ea tsona.Silinda e kopantsoeng ea fiber ea carbons ke khetho e ratoang ka lebaka la thepa ea bona e phahameng. Mona ho shebisisa lisebelisoa tsena:

1. Carbon Fiber Composite Cylinders

Silinda e kopantsoeng ea fiber ea carbons li sebelisoa haholo lits'ebetsong tsa SCBA ka lebaka la matla a tsona le thepa ea tsona e bobebe. Likarolo tse kholo tsa li-cylinders tsena li kenyelletsa:

  • Inner Liner:Lesela le ka hare la silinda, hangata le entsoeng ka thepa e kang aluminium kapa polasetiki, le tšoara moea o hatelitsoeng kapa oksijene.
  • Sekoahelo sa Carbon Fiber:Lera le ka ntle la silindara le entsoe ka lintho tse entsoeng ka carbon fiber composite. Carbon fiber ke thepa e matla, e bobebe e fanang ka tekanyo e phahameng ea matla le boima ba 'mele le ho hanyetsa tšusumetso le ho bola.

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Melemo eaCarbon Fiber Composite Cylinders:

  • E bobebe: Moqomo oa carbon fibers li bobebe haholo ha li bapisoa le li-cylinders tsa setso tsa tšepe kapa aluminium. Sena se etsa hore ho be bonolo ho li jara le ho li tšoara, e leng tsa bohlokoa haholo-holo maemong a phahameng a kang ho tima mollo kapa mesebetsi ea pholoso.
  • Matla a Phahameng:Leha e le bobebe,carbon fiber composite silindarali matla ka mokhoa o makatsang 'me li khona ho mamella likhatello tse phahameng. Sena se tiisa hore cylinder e ka tšoara moea o hatelitsoeng kapa oksijene ka mokhoa o sireletsehileng ntle le kotsi ea ho phatloha.
  • Nako e telele:Carbon fiber e hanana le kutu le tšenyo e tsoang ho maemo a tikoloho. Sena se eketsa nako e telele ea li-cylinders, ho etsa hore li tšepahale esita le maemong a thata.
  • Katleho:Moralo oacarbon fiber cylinders e ba lumella ho boloka moea o mongata kapa oksijene sebakeng se senyenyane, ho fa basebelisi sesebelisoa sa ho phefumoloha se kopaneng le se sebetsang hantle.

2. Lintho Tse Ling

  • Aluminium Liner:Ba bangSCBA tankas sebelisa lesela la aluminium, le bobebe ho feta tšepe 'me le fana ka khanyetso e ntle ho kutu. Hangata litanka tsena li phuthetsoe ka thepa e kopantsoeng, joalo ka fiberglass kapa carbon fiber, ho matlafatsa matla a tsona.
  • Litanka tsa tšepe:Litanka tsa khale tsa SCBA li entsoe ka tšepe, e matla empa e le boima ho feta aluminium kapa lisebelisoa tse kopantsoeng. Litanka tsa tšepe li ntse li sebelisoa lits'ebetsong tse ling empa butle-butle li nkeloa sebaka ke mefuta e meng e bobebe.

Tlhokomelo le Polokeho

Ho etsa bonnete baSCBA tankas li tlatsitsoe ka nepo le ho hlokomeloa hantle li bohlokoa bakeng sa polokeho le ts'ebetso:

  • Litlhahlobo tsa Kamehla: SCBA tankas e lokela ho hlahlojwa kgafetsa bakeng sa matshwao a ho tsofala kapa tshenyo. Sena se kenyeletsa ho hlahloba hore na ha ho na makhopho, mapetsong, kapa litaba tse ling tse ka senyang botšepehi ba tanka.
  • Teko ea Hydrostatic: SCBA tankas ba tlameha ho etsa liteko tsa hydrostatic nako le nako ho netefatsa hore ba khona ho mamella likhatello tse phahameng tseo ba li etselitsoeng. Sena se kenyelletsa ho tlatsa tanka ka metsi le ho e hatella ho hlahloba ho lutla kapa ho fokola.
  • Ho Tlatsa ka nepo:Litanka li lokela ho tlatsoa ke litsebi tse koetlisitsoeng ho netefatsa hore moea kapa oksijene e hatelloa ho ea khatellong e nepahetseng le hore tanka e bolokehile hore e ka sebelisoa.

Qetello

SCBA tankas e bapala karolo ea bohlokoa ho faneng ka moea o phefumolohang kapa oksijene libakeng tse kotsi. Khetho ea lisebelisoa bakeng sa litanka tsena e ama ts'ebetso ea tsona haholo.Li-cylinders tse entsoeng ka fiber ea carbonli fetohile khetho e ratoang ka lebaka la boima ba tsona bo bobebe, matla a phahameng, le ho tšoarella. Ba fana ka melemo e mengata ho feta litanka tsa tšepe tsa setso kapa aluminium, ho kenyelletsa le ho ts'oaroa habonolo le polokeho e ntlafalitsoeng. Tlhokomelo ea kamehla le ts'ebetso e nepahetseng ea litanka tsena li netefatsa ho ts'epahala le ts'ebetso ea tsona, ho etsa hore e be tsa bohlokoa bakeng sa polokeho lits'ebetsong tse fapaneng tsa tšohanyetso le tsa indasteri.

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Nako ea poso: Sep-02-2024