Kungani Ukuhlolwa Kwezinga Lokugeleza Kwe-Fire Nozzle Elinembile Kubalulekile
Ama-hydraulic asezindaweni zomlilo athembele ekuqinisekisweni okubonakalayo kunezibikezelo zemfundiso. Umehluko phakathi kweshadi lephampu yedivayisi kanye nokukhishwa kwangempela kwe-nozzle kunganquma impumelelo noma ukwehluleka kokuhlaselwa komlilo kwangaphakathi. Ukuhlolwa kokugeleza kunikeza isiqinisekiso sobuningi sokuthi iphakheji yokuhlasela—ehlanganisa iphampu,ipayipi, kanye nomlomo womlilo—iletha amagaloni alindelekile ngomzuzu (GPM). Ngaphansi kwezindinganiso ze-NFPA 1962, iminyango yomlilo inesibopho sokwenza ukuhlolwa kwaminyaka yonke kwamapayipi nezinto zikagesi, kodwa ukuhlolwa kokugeleza kwamaqhinga endaweni yomlilo kudinga ukuqonda okujulile kweziguquguquki ze-hydraulic ukuqinisekisa ukuthi imisebenzi yokucindezela ihlangabezana nomkhawulo wokushisa odingekayo.
Indlela ukunemba kokugeleza okuthinta ngayo ukusebenza komugqa wokuhlasela
Indlela eyinhloko yokuvimbela umlilo ukupholisa, okulingana ngqo nokugeleza kwamanzi. Igaloni elilodwa lamanzi limunca cishe ama-BTU angu-9,346 uma liguqulwa ngokuphelele libe umusi ku-212°F (100°C). Ngenxa yalokho, umugqa wokuhlasela ogeleza ngempumelelo i-150 GPM uveza amandla okupholisa angokwengqondo angaphezu kwezigidi ezingu-1.4 zama-BTU ngomzuzu. Kodwa-ke, uma ukulahlekelwa kokungqubuzana okungalinganiswanga noma amaphutha e-nozzle kunciphisa lokho kugeleza kube yi-115 GPM, amandla okupholisa ehla cishe ngama-BTU angu-330,000 ngomzuzu. Lokhu kuntuleka kuthinta ngqo ikhono leqembu elihlaselayo lokunqoba izinga lokukhululwa kokushisa (HRR) kwemithwalo yamafutha yokwenziwa yesimanje, okwandisa ingozi yokubaleka kokushisa noma ukushaqeka.
Ngaphezu kwalokho, ukunemba kokugeleza kunquma ngqo amandla okusabela kwe-nozzle. Uma i-nozzle ezenzakalelayo idinga i-100 PSI ukuze igeleze i-150 GPM, ukusabela kwe-nozzle okuphumelayo kungaba cishe amakhilogremu angu-76 amandla. Ukushintshashintsha kokugeleza okungahlosiwe kungashiya umfudlana ungasebenzi kahle ngomshini noma kucindezele kakhulu umugqa, kukhathaze ngokomzimba umqhubi we-nozzle futhi kunciphise ukukhuthazela kwawo kokusebenza.
Indlela yokuchaza amazinga okugeleza kwe-nozzle okuqondiwe
Ukusungulaamazinga okugeleza komlomo womlilo okuqondiwekudinga ukubalwa kokugeleza komlilo okudingekayo (i-RFF) ngohlobo oluthile lokuhlala, umthwalo womlilo, kanye nenhloso yeqhinga. Ifomula ye-National Fire Academy (NFA) inquma ukuthi i-RFF ilingana nobude obuphindaphindwe ngobubanzi besakhiwo esihilelekile, ihlukaniswe kathathu, okunikeza i-GPM edingekayo yephansi elihilelekile ngokugcwele.
Ekusetshenzisweni okujwayelekile kwezindawo zokuhlala, izinga lokugeleza okuqondiwe elingu-150 kuya ku-160 GPM lamukelwa kabanzi njengesisekelo somugqa wesandla ongu-1.75 intshi. Izindawo zezentengiselwano, ezinophahla oluphezulu, izinhlelo zephansi elivulekile, kanye nemithwalo kaphethiloli eningi, zidinga izintambo zesandla ezingu-2.5 intshi ezinokugeleza okuqondiwe okusukela ku-250 kuya ku-300 GPM. Ukuchaza lezi zinhloso kusungula isisekelo sazo zonke izivivinyo zokugeleza okulandelayo. Umnyango womlilo kumele wamukele ngokusemthethweni lezi zinhlaka eziqondiwe ngaphambi kokuthenga noma ukuhlola ama-nozzle, uqinisekise ukuthi amashadi okucindezela kokukhipha iphampu (PDP) ayalinganiswa ukuze alethe lezi zidingo eziqondile ngaphansi kwezimo zasensimini.
Izinhlobo Zokugeleza Kwe-Fire Nozzle Okufanele Zilinganiswe Ngaphambi Kokuhlolwa
Ngaphambi kokuqala ukuhlolwa kokugeleza, opharetha kumele balinganisele iziguquguquko ze-hydraulic ezizothinta umphumela wokuhlolwa. I-nozzle yomlilo ayisebenzi yodwa; iyisici sokugcina sohlelo lwe-hydraulic oluyinkimbinkimbi. Ukwehluleka ukucabangela imininingwane yepayipi, izinguquko zokuphakama, kanye nezinto zikagesi ezingaphakathi kuzoholela kudatha yokuhlola enganembile kanye nokuqagela okunephutha kweqhinga.
Imininingwane ye-nozzle enquma ukugeleza okulindelekile
Imininingwane yomenzi inquma izinga lokugeleza elilindelekile ngengcindezi ethile yokusebenza. I-nozzle yenkungu engamalitha aqinile ingalinganiswa nge-150 GPM ngengcindezi ye-nozzle ye-50, 75, noma i-100 PSI (NP). Ama-nozzle azenzakalelayo asebenza ngendlela yentwasahlobo eguquguqukayo eyenzelwe ukugcina ingcindezi ye-tip ye-100 PSI engaguquki phakathi kwebanga lokugeleza, ngokuvamile i-70 kuya ku-200 GPM. Ama-nozzle abushelelezi ancike kububanzi bangaphakathi be-tip kanye nengcindezi yokukhipha, kanye nokusebenza okujwayelekile kwesandla okulingiswe ku-50 PSI NP.
Ukuqonda i-K-factor ethile ye-nozzle—okungaguquki okumelela i-discharge coefficient—kubalulekile. I-K-factor ivumela ochwepheshe ukubikezela ukugeleza besebenzisa ifomula ethi Q = K * sqrt(P). Uma i-K-factor ingaziwa, noma uma i-geometry yangaphakathi ye-nozzle yonakele ngenxa yokuguguleka okukhulu, ukugeleza okulindelekile kuzohluka kakhulu ekugelezeni okulinganisiwe ngesikhathi sokuhlolwa.
Ububanzi bepayipi, ubude, ukuphakama, kanye nemiphumela yensiza
Ukuhlelwa kwepayipi ngaphambi komlomo wethula ukulahlekelwa kokungqubuzana (FL), okuyingxenye eguquguqukayo kakhulu kuma-hydraulics asezindaweni zomlilo. Ukulahlekelwa kokungqubuzana kubalwa kusetshenziswa ifomula ejwayelekile ethi FL = C * (Q/100)^2 * L, lapho u-C kuyi-coefficient yokulahlekelwa kokungqubuzana, u-Q ukugeleza ku-GPM, kanti u-L ubude bepayipi ngamamitha angamakhulu.
Amapayipi okuhlasela alula esimanje avame ukuba nobubanzi obuhlukene bangaphakathi (i-ID yangempela) kunamapayipi endabuko, okushintsha kakhulu i-coefficient ye-C. Isibonelo, ipayipi lesimanje elingu-1.75-intshi eline-ID yangempela elingu-1.88 amasentimitha lingase libonise ukulahlekelwa kokungqubuzana okungu-35 PSI ngamafidi ayi-100 ku-150 GPM, kanti amamodeli amadala angadlula i-50 PSI ekugelezeni okufanayo. Ukuphakama nakho kuthinta indawo yokuhlola; amandla adonsela phansi abangela ukulahlekelwa kwengcindezi noma inzuzo engu-0.434 PSI ngonyawo lokuphakama, ngokuvamile azungezwe ku-5 PSI ngophansi lwendlu yokuhlala. Ngaphezu kwalokho, izinto zikagesi ezingaphakathi njenge-wyes, amasela amanzi, noma ama-valve aqhekekile ngokuvamile afaka ukulahlekelwa okwengeziwe kwe-10 kuya ku-25 PSI kuye ngesilinganiso sokugeleza okuphelele, okumele kufakwe ekucindezelweni kokukhishwa kwephampu eyisisekelo ngaphambi kokuqala kokuhlolwa.
Ukuqhathaniswa kokugeleza kwe-Smooth bore vs. inkungu nozzle
Ukuqhathanisa ama-bore abushelelezi kanye nama-fog nozzles ngesikhathi sokuhlolwa kokugeleza kudinga ukulinganisa izilinganiso. Ama-bore abushelelezi ahlinzeka ngomfudlana oqinile onezingcindezi zokusebenza eziphansi, okunciphisa ukusabela kwama-nozzles kumqhubi. Ama-fog nozzles, kungakhathaliseki ukuthi aqinile, ayakhetheka, noma azenzakalelayo, athembele ekuqhekekeni kwamanzi ngokumelene ne-baffle ephakathi ukuze adale iphethini ethile, ngokuvamile edinga ukucindezeleka okuphezulu ukuze asebenze kahle.
| Uhlobo lwe-Nozzle | Ingcindezi Ejwayelekile Yokusebenza (NP) | Ibanga Lokugeleza Elijwayelekile (Ipayipi Eliyi-1.75-intshi) | Ukusabela Kwe-Nozzle ku-150 GPM | Ukugeleza Okuthinta Okuguquguqukayo Okuyinhloko |
|---|---|---|---|---|
| I-Smooth Bore (Ithiphu engu-7/8-intshi) | I-PSI engu-50 | 160 GPM | ~60 lbs | Ububanzi be-Tip, Ukucindezela kwephampu |
| Inkungu Engaguquki Yegaloni | 50, 75, noma 100 PSI | 150 – 200 GPM | ~60 – 76 lbs | Ukuguga Okungaqondakali, Ukucindezela Kwephampu |
| Inkungu Engakhethwa-Ye-Gallonage | I-PSI eyi-100 | 30 – 200 GPM | Okuguquguqukayo | Ukukhethwa Komqhubi, Udoti |
| Inkungu Ezenzakalelayo | I-PSI eyi-100 | 70 – 200 GPM | Iyaguquguquka (kufika ku-85 lbs) | Ukucindezeleka Kwentwasahlobo, Ukucindezeleka Kwephampu |
Ngesikhathi sokuhlolwa kokugeleza, ama-nozzle azenzakalelayo avame ukufihla ukucindezeleka okunganele kwephampu ngokugcina ukufinyelela komfudlana okwamukelekayo ngokubonakalayo ngenkathi edela i-GPM ngasese. Ngenxa yokuthi isiphethu sangaphakathi silungisa i-baffle ukuze silondoloze ukucindezeleka kwesihloko, ukwehla kokucindezela kwephampu kumane kunciphisa usayizi we-orifice, kwehlisa ukugeleza ngaphandle kokubhidliza umfudlana. Ama-nozzle abushelelezi, ngokuphambene nalokho, abonisa umfudlana owonakele ngokubonakalayo, ogobayo lapho ucindezelwe ngaphansi, enikeza impendulo ebonakalayo ngokushesha ngaphambi kokuba imitha yokugeleza iqinisekise ukuntuleka.
Indlela Yokuhlola Izinga Lokugeleza Kwe-Fire Nozzle Ngokunembile
Ukwenza ukuhlolwa kokugeleza komlilo okunembile kudinga indlela eqinile, izinsimbi ezilinganisiwe, kanye nezimo zemvelo ezilawulwayo. Ubuchwepheshe bensimu kumele bulinganiswe nokunemba kwesayensi ukuqinisekisa ukuthi idatha evelayo ingalawula ngokuphephile ukusebenza kwephampu yesikhala somlilo kanye nokuhlela kwangaphambi kwesigameko.
Inqubo yokuhlola ukugeleza kwesinyathelo ngesinyathelo
Inqubo yesinyathelo ngesinyathelo iqala ngokusungula ukuphakelwa kwamanzi okuqhubekayo nokuthembekile, okungcono kakhulu okuthathwe emthonjeni ongashintshi noma okuphakelwa ngomthamo omkhulu wamanzi.ipayipi likamasipalaukuvimbela ukuguquguquka kwengcindezi yokungenisa. Ukuhlelwa kwepayipi kumele kusetshenziswe ngokuqondile ngama-kink amancane noma ukugoba okubukhali ukuze kuhlukaniswe ukulahlekelwa kokungqubuzana kwe-hose jacket uqobo.
Umqhubi wephampu uphotha umshini uye endaweni eqondiwe Umfutho Wokukhipha Iphampu (PDP) obalwa ngokwesakhiwo esithile. Uma umugqa usushajiwe, umqhubi wephampu uvula ibhele ngokugcwele ukuze akhiphe wonke umoya ovalelekile futhi asuse noma yikuphi ukungcola kokuqala. Uhlelo kumele lusebenze esimweni esizinzile okungenani imizuzwana engama-45 kuya kwengama-60 ukuze kuvunyelwe i-pump governor kanye nama-hydraulic angaphakathi ukuthi azinze. Kuphela ngemva kokuzinza lapho ukufundwa kokugeleza kufanele kuthathwe khona. Ukugijima okuningi kufanele kwenziwe—ngokuvamile izikhathi ezintathu ngephampu ngayinye—ukuze kulinganiswe ukuphakama kwengcindezi yesikhashana futhi kuqinisekiswe ukuthi kuyaphindaphindeka.
Ukusebenzisa ama-pitot gauges, amamitha okugeleza angaphakathi, kanye nama-pump gauges
Ukulinganisa okunembile kuncike ekukhetheni izinsimbi ezifanele. Ama-Pitot gauges ayindinganiso yegolide yokuhlola ama-nozzle e-bore abushelelezi. I-blade ifakwa phakathi komfula oqinile, ebangeni elingangengxenye yobubanzi be-tip ukusuka ku-orifice. Ukufundwa kwengcindezi bese kuguqulwa kube ukugeleza kusetshenziswa ifomula ethi Q = 29.83 * c * d^2 * sqrt(p), lapho u-'c' kuyi-coefficient of discharge (ngokuvamile u-0.99 wama-bore abushelelezi), u-'d' ubukhulu be-tip, kanye no-'p' kuyingcindezi ye-pitot.
Kuma-nozzle enkungu, lapho ama-pitot gauge engasetshenziswa ngenxa yokuqhekeka komfudlana,amamitha okugeleza angaphakathikuyimpoqo. Amamitha okugeleza kagesi angaphakathi kwe-electromagnetic yesimanje anikeza izinga eliphezulu lokunemba, ngokuvamile kusuka ku-+/- 1% kuya ku-3% wokufunda, ngaphandle kokuletha ukulahlekelwa okwengeziwe kokungqubuzana. Amamitha okugeleza e-paddlewheel nawo avamile kodwa adinga ukulinganiswa ngezikhathi ezithile ukuze kuvinjelwe ukwakheka kwamaminerali ekushintsheni isivinini sokujikeleza. Ukuthembela kuphela kumamitha okugeleza angaphakathi kwedivayisi yomlilo noma kuma-discharge gauge akukhuthazwa kakhulu ekuhlolweni kokuqala, njengoba ama-panel panel gauge evame ukwehla ekulinganisweni ngo-10% noma ngaphezulu ngenxa yokudlidliza okuqhubekayo endaweni yomlilo.
Indlela yokurekhoda ukufundwa kokugeleza kwe-nozzle
Ukufakwa kwedatha ngesikhathi sokuhlolwa kumele kwenziwe ngokucophelela ukuqinisekisa ukuhlaziywa okusebenzayo kwesikhathi eside. Abaqhubi kumele babhale isikhathi esiqondile sosuku, ithuluzi elithile elisetshenzisiwe, umenzi wepayipi kanye nobudala, inombolo yochungechunge lwe-nozzle, i-PDP eqondiwe, i-PDP yangempela, ukufundwa kwemitha yokugeleza eqondile (GPM), kanye nengcindezi ye-pitot noma ye-nozzle (NP).
Ukusebenzisa ispredishithi esijwayelekile noma isofthiwe yokuhlola i-hydraulic ezinikele kuqinisekisa ukuthi idatha ihlelwe kahle. Ochwepheshe kufanele babambe okungenani amaphuzu amathathu edatha ngokusetha kwe-nozzle. Kuma-nozzle akhethekayo, ukufundwa kumele kuqoshwe kuwo wonke amasethingi e-gallon (isb. 95, 125, 150, 200 GPM) ukuqinisekisa ukuthi indandatho yokukhetha yangaphakathi iyasebenza kahle futhi iletha ukugeleza okulinganiselwe ngokucindezela okucacisiwe. Noma yikuphi ukungahambi kahle, njengokuvuza okubonakalayo ekujikelezeni noma ukuqina kwe-bale, kumele kubhalwe phansi kanye nezinombolo zokugeleza.
Indlela Yokuchaza Imiphumela Yokuhlolwa Kwe-Fire Nozzle
Uma idatha yobufakazi isiqoqiwe, ukugxila kushintshela ekuhlaziyweni kwe-hydraulic. Ukuhumusha imiphumela yokuhlolwa kwe-fire nozzle kuhilela ukuhlonza ukungafani phakathi kwamashadi ephampu enengqondo kanye nokusebenza kwangempela, ukuhlonza izimbangela eziyinhloko zokuntuleka kokugeleza, kanye nokwenza ngcono iphakheji yokuhlasela ukuze isetshenziswe ekusebenzeni.
Amaphethini okwehluleka abangelwa ukulahlekelwa ukungqubuzana noma izinkinga zemishini
Ukuxilonga ukwehluleka kokugeleza kudinga ukuhlukaniswa okuhlelekile kweziguquguquki. Izinga lokugeleza eliphansi kunalokho obekulindelekile ngokuvamile libangelwa ukulahlekelwa okukhulu kokungqubuzana epayipini, ivalvu yokukhipha ipompo engasebenzi kahle, noma ukuvinjelwa kwangaphakathi embotsheni.
| Izimpawu / Umphumela Wokuhlolwa | Imbangela Engenzeka | Isenzo Sokuxilonga | Ukungenelela Okudingekayo |
|---|---|---|---|
| Ukugeleza okungaphezulu kuka-15% ngaphansi kwethagethi; i-NP ilungile | Ububanzi besihloko bugugile (imbobo ebushelelezi) noma i-baffle yonakele (inkungu) | Kala ithiphu ngama-caliper; hlola i-baffle | Shintsha ithiphu noma wakhe kabusha i-nozzle core |
| Ukugeleza okungaphezulu kuka-15% ngaphansi kwethagethi; i-NP iphansi | Ukulahlekelwa okukhulu kokungqubuzana ekwakhiweni kwepayipi | Faka igeyiji eqondile ngemuva kwe-nozzle ukuze uhlole i-NP | Bala kabusha ishadi lephampu le-FL ephezulu |
| Ukugeleza kushintshashintsha kakhulu (+/- 20 GPM) | Imfucumfucu efakwe ku-stream shaper noma i-paddlewheel meter | Hlola imitha esemgqeni kanye nesikrini se-nozzle | Uhlelo lokuhlanza; hlanza izikrini zangaphakathi |
| Ukugeleza okuphezulu, ukusabela okuphezulu kakhulu kwe-nozzle | Ukucindezela ngokweqile epompo | Hlola ukulinganiswa kwegeyiji yokukhipha iphaneli yephampu | Linganisa amageyiji ephampu; i-PDP ephansi |
Kuma-nozzle azenzakalelayo, iphethini evamile yokwehluleka ukukhathala kwentwasahlobo. Eminyakeni eminingi yokusebenza, intwasahlobo yangaphakathi ilahlekelwa ukucindezeleka, okubangela ukuthi i-baffle ivuleke ngaphambi kwesikhathi ngokucindezela okuphansi. Lokhu kuphumela ekutheni i-nozzle inikeze umfudlana osindayo, onesivinini esiphansi ohluleka ukufinyelela ukufinyelela nokungena okudingekayo, ngisho noma imitha yokugeleza eqondile ibonisa ukuthi i-GPM yanele ngokobuchwepheshe. Ukuqaphela la maphethini okwehluleka komshini kubalulekile ekuchazeni okunembile.
Isikhathi Sokulungisa, Ukuhlola Kabusha, Noma Ukushintsha Ama-Fire Nozzles
Idatha etholakala ekuhlolweni kokugeleza kumele iholele ezinqumweni ezingathathwa izinyathelo maqondana nokugcinwa kwemishini, ukusebenza kwamaqhinga, kanye nokusetshenziswa kwemali. Ukuhlola kubaluleke kakhulu kuphela uma inhlangano izimisele ukulungisa amapharamitha ayo okusebenza, ukuhlola kabusha izingxenye ezihlulekile, noma ukusebenzisa isu lokufaka esikhundleni lapho imishini ifinyelela ekupheleni komjikelezo wayo wokuphila.
Nini ukulungisa ingcindezi yephampu, ukwakheka kwepayipi, noma izilungiselelo ze-nozzle
Ukulungiswa kuyimiphumela evame kakhulu yokuhlolwa kokugeleza komhlabathi. Uma i-nozzle ingasebenzi kahle ngenxa yokulahlekelwa ukungqubuzana kwepayipi okungalindelekile, isinyathelo sokulungisa ngokushesha ukuvuselela amashadi ephampu omnyango. Isibonelo, uma i-crosslay engamamitha angu-200 idinga i-145 PSI PDP ukuze ifinyelele i-150 GPM esikhundleni se-130 PSI yethiyori, incwadi yemiyalelo yomqhubi wephampu kumele ibonise indinganiso entsha ye-145 PSI.
Kodwa-ke, uma ukulungisa i-PDP kusunduza ukusabela kwe-nozzle ngale komkhawulo we-ergonomic wamakhilogremu angu-65 kuya kwangu-75 kumuntu oyedwa ocima umlilo, kudingeka ukulungiswa kwamaqhinga. Umnyango ungase udinge ukushintsha kusuka ku-nozzle ye-fog engu-100 PSI uye ku-nozzle ye-fog ephansi engu-50 PSI noma i-bore ebushelelezi ukuze kufezwe i-GPM eqondiwe ngaphandle kokukhathala opharetha. Ngemva kwanoma yikuphi ukulungiswa ngokomzimba kwendlela ye-nozzle, njengokuqinisa i-baffle ekhululekile, ukugcoba i-valve yesilayidi, noma ukufaka esikhundleni se-gasket egugile, ukuhlolwa kabusha okuphoqelekile kumele kwenziwe ukuqinisekisa ukuthi izinga lokugeleza libuyele ku-+/- 10% yokubekezelelana eyamukelekayo.
Uhlaka lwezinqumo zokushintsha i-nozzle kanye nokuthengwa kwayo
Uma ukulungiswa nokulungiswa kwehluleka ukulungisa ukuntuleka kokugeleza kwamanzi, uhlaka lwesinqumo esiqinile sokushintsha kumele lusebenze. Ama-nozzle abhekene nezimo ezinzima zomlilo aphila isikhathi eside, ngokuvamile iminyaka eyi-10 kuya kweyi-15 kuye ngokuthi agcinwa kangaki, ikhwalithi yamanzi, kanye nomthamo wokusetshenziswa kwawo. Uma i-nozzle yehluleka ukuhlolwa kwayo kokugeleza ngamaphesenti angaphezu kwe-10 futhi uchwepheshe oqinisekisiwe enquma ukuthi ukuguguleka kwangaphakathi akukwazi ukulungiswa ngekhithi ejwayelekile yokwakha kabusha (evame ukubiza u-$50 kuya ku-$150), ukushintshwa kuyimpoqo.
Izikhulu zokuthenga kumele zicabangele izindleko zamanje zeama-nozzle omlilo asezingeni lobuchwepheshe, ngokuvamile kusukela ku-$600 kuya ku-$1,200 ngeyunithi ngayinye yezintambo ezijwayelekile, kanye nokufika ku-$2,500 kumadivayisi akhethekile okusakaza. Ngaphezu kwalokho, izikhathi zokuthenga kumele ziphathwe; ama-nozzle akhiwe ngokwezifiso noma ukucushwa kwentambo ethile kungathwala izikhathi zokuhola zamasonto ama-4 kuya kwangu-8. Ukusungula inani elincane le-oda (i-MOQ) lokushintsha imikhumbi ngokuvamile kungaqinisekisa izaphulelo zevolumu, okuvumela umnyango ukuthi uguqulele i-battalion yonke ezingeni elisha le-nozzle elihlolwe ukugeleza ngasikhathi sinye, ngaleyo ndlela kuqinisekiswe ukusebenza okufanayo kwe-hydraulic kuzo zonke izinsiza zokuphendula.
imibuzo ejwayelekile ukubuzwa
Kungani abasebenzi kufanele baqinisekise ukugeleza kwangempela kwe-fire nozzle esikhundleni sokuthembela kumashadi ephampu?
Amashadi ephampu ayizindawo zokuqala, akuwona ubufakazi. Ukulahlekelwa ukungqubuzana kwepayipi, imikhawulo yemishini, ukuphakama, ukugoba, kanye nesimo se-nozzle kunganciphisa i-GPM yangempela, okuthinta amandla okupholisa, ukufinyelela komfudlana, kanye nokuphepha kwabasebenzi.
Iyini indlela evamile yokugeleza kwethagethi yomugqa wokuhlasela ongu-1.75 intshi?
Iminyango eminingi isebenzisa i-150 kuya ku-160 GPM njengesisekelo sendawo yokuhlala yomugqa wesandla ongu-1.75 intshi, kodwa umgomo wokugcina kufanele uhambisane nendawo yokuhlala, umthwalo womlilo, iphakheji yepayipi, uhlobo lwe-nozzle, kanye namaqhinga omnyango.
Kufanele kwenziwe kangaki ukuhlolwa kwepayipi kanye nemishini?
I-NFPA 1962 idinga ukuhlolwa kwaminyaka yonke kwamapayipi omlilo nezinto zikagesi. Iminyango kufanele futhi yenze ukuhlolwa kokugeleza kolwazi ngemuva kokushintsha ama-nozzle, imithwalo yamapayipi, izinto zikagesi, amashadi epompo, noma izinqubo zokusebenza ezijwayelekile.
Yiziphi izinguquko okufanele zirekhodwe ngesikhathi sokuhlolwa kokugeleza kwe-nozzle?
Qopha imodeli ye-nozzle kanye nengcindezi, ububanzi bepayipi nobude, ingcindezi yokukhipha iphampu, ushintsho lokuphakama, izinto zikagesi ezingaphakathi, i-GPM elinganisiwe, ikhwalithi yokusakaza, kanye nokusabela kwe-nozzle. Le mininingwane yenza imiphumela iphindaphindeke.
Ingabe i-nozzle yomlilo ezenzakalelayo inganikeza imiphumela yokugeleza edukisayo?
Yebo. Ama-nozzle azenzakalelayo angagcina ukubukeka komfudlana kububanzi bokucindezela, okungase kufihle ukugeleza okunganele. Qinisekisa njalo i-GPM yangempela ngemitha yokugeleza elinganisiwe, indlela ye-pitot, noma ukusethwa kokuhlolwa okuqinisekisiwe.
Isikhathi sokuthunyelwe: Juni-22-2026