Amaphuzu amqoka okusebenza kombhobho omile: ungakhohlwa ukushaywa umoya!

Kukhale umsakazo ngesikhathi kuqubuka umlilo ehhotela eliseduze esitezi sesihlanu. Emizuzwini embalwa kamuva, usebenzisa isikhwama sakho sokuphakama ukuze uxhumeke—okungukuthi, “gqokisa amapayipi”—ekuhlaleni esitezi sesine, futhi esitezi esingaphezulu ngaphezu kwakho, kubonakala sengathi isistimu yokufafaza inephutha. Ihhotela. Cishe lesi yisimo esicindezelayo okungenzeka noma ongakaze ubhekane naso ngaphambili; ukwenza izinto ezincane ngendlela efanele kuzosiza ukunqoba ukucindezeleka, futhi impumelelo encane izophenduka impumelelo enkulu. Abanye abantu bangase bacabange ukuthi enye yezinto ezincane kakhulu umlayezo othi, "Ungakhohlwa ukugeza!" Ukukhipha isikhuphukeli ngaphambi kokuba kusetshenziswe umnyango womlilo akuyona into encane, kodwa kuyisinyathelo esibalulekile esingasetshenziselwa izinhloso eziningi futhi sithinte kakhulu imiphumela yemisebenzi yokucima umlilo. I-Flushing iqinisekisa ubuqotho bokuphakama, ukuhlinzekwa kwamanzi kanye nokusebenza kwe-valve; isusa imfucumfucu epayipini; futhi ikunikeza isikhathi sokuxazulula izinkinga kusenesikhathi. Amanzi aphuma esikhuphukeni aqinisekisa ukuthi ipayipi linomthombo wamanzi. Kunamathuba amaningi okunikezwa kwamanzi kumasistimu okuphakama; kufanele sazi ezinye izinketho ezijwayelekile. Amapayipi angahlinzekwa ngamaphampu omlilo anomfutho, imithombo yamanzi kamasipala enengcindezi eyanele noma engenawo, noma i-Fire Department Connection (FDC) kuphela. Ngethemba ukuthi uhlele lesi sakhiwo kusenesikhathi futhi uyaluqonda uhlelo ofuna ukulusebenzisa. Ezinhlelweni eziningi zephampu yomlilo ezicindezelweyo, lapho uvula i-valve ukuze ishaye, ingcindezi yesistimu izokwehla, futhi iphampu yomlilo izozwa ukwehla kwengcindezi, bese iqala futhi inikeze amanzi acindezelwe ohlelweni. Lokhu ekugcineni yilokho ofuna ukwenzeka ohlelweni oluhlinzekwa yiphampu yomlilo wokwakha. Ngokufanayo, lapho i-FDC kanye nenjini kuxhunyiwe futhi impontshwa ngokugcwele, amanzi azophuma lapho i-valve ishaywa, futhi konke kuhamba kahle. Kodwa-ke, uma uvula i-valve futhi kungekho manzi aphumayo, kungase kusho ukuthi i-valve engaphansi kwegumbi lepompo noma isikhuphukeli sezitebhisi asivulwa, injini ixhunywe ekuxhumekeni okungalungile, noma yisiphi esinye isizathu. Mhlawumbe iphampu yomlilo ivaliwe noma isikhuphukeli sona sona sonakala, Nokho, awekho amanzi agelezayo aphuma epayipini okungenzeka kube umphumela ojwayelekile ngokuphelele wezikhuphukeli ezomile ezenziwe ngezandla noma amasistimu wokumanzisa okwenziwa ngesandla athembele ku-FDC ukuze anikeze amanzi futhi angaxhumekile. Ivalve yesikhuphukeli kungenzeka ibingakaze isetshenziswe esakhiweni iminyaka eminingi, noma kungenzeka ukuthi yonakalisiwe ngenxa yenhloso yobugebengu noma umonakalo owenziwa ngabahlali bebhilidi abanelukuluku kulezi zinsuku ezimbalwa ezedlule. Kusukela ekufakweni kokuqala noma ukusetshenziswa kokugcina kuze kube usuku oludinga ngalo ukuthi lusebenze, izinto eziningi zingenzeka. Ukuze uqinisekise impumelelo, susa ikhava bese ufaka i-valve yesango lomnyango womlilo (isithombe 1) ngaphambi kokuvula i-valve yokwakha. Uhamba nayo le valve, uyazi ukuthi ingasebenza, futhi uthole ukuqeqeshwa kwayo ngaphambi kwalolo suku. Ngemva kokufaka i-valve yomnyango womlilo, vula i-valve yokwakha kanye ukuze ukhiphe uhlelo, bese uyigcina ivuliwe. Ukuvula i-valve yokwakha kungase kudinge umsebenzi; kulindeleke ukuthi kube nzima ukuyivula. Yenza noma yini okumele uyenze ukuyivula-ukuyishaya, ukuyicisha, noma usebenzise isikrufu sepayipi. Uma isivuliwe futhi usuwashayile uhlelo, gcina i-valve yokwakha ivuliwe futhi usebenzise i-valve yesango lomnyango wezomlilo ukuze uvale ukugeleza kwamanzi. Umsebenzisi angaqhubeka nokusika ipayipi bese engeza izindololwane, amamitha ashumekiwe, amapayipi, njll., ukuze ipayipi isilungele ukusetshenziswa (isithombe 2-3). Ivalvu yesango yomnyango wezomlilo izovumela izicishamlilo ezikhuphukela ezitebhisini ukuthi zibeke ingcindezi efanele lapho ipayipi ligeleza esitebhisini ngaphambi kokucisha umlilo; ezimweni ezingaziwa, ukusebenzisa i-valve yesango ukuvala ukugeleza kwamanzi ngokuvamile kulula kakhulu kunokusebenzisa i-valve yokwakha. Uma umlilo usucishiwe futhi ukusebenza sekuphelile, abasebenzi bangabhekana nokuvala ama-valve okwakha ukuze babuyisele izinsiza zabo zemishini. Isidingo sokukhuculula imfucumfucu kusistimu yesikhuphukeli kulula ukusiqonda. Amadiphozithi amanzi aqinile, isikali, amathoyizi, udoti, nanoma iyiphi inombolo yezinto kungangena ohlelweni lwe-standpipe. Geza amanzi anele ukuze ukhiphe lezi zinto ohlelweni futhi ungene endaweni yesikhulumi. Kulula ukusula izinto zangaphandle ngevalvu engu-2½-intshi kunokusebenzisa ithiphu yombhobho engu-11⁄8-intshi. Ukukhukhula nokomisa uhlelo ngeke nje kususe imfucumfucu, kodwa futhi kuzokhipha umoya oqoqwe ohlelweni ukuze kulungiswe uhlelo lokucisha umlilo. Ukuthatha isikhathi esincane manje ukukhipha izinto ezingase zivale imibhobho kungaklonyeliswa ngezindlela eziningi emisebenzini yokucisha umlilo. Ekugcineni, abasebenzi abazange bafune ukukhohlwa ukugeza, ngoba kwabanika isikhathi sokunqoba le nkinga. Izicishamlilo ezisezitebhisini kufanele zikhiphe amanzi amaningi esikhuphukeni ngokushesha ngangokunokwenzeka, kuyilapho abanye abasebenzi benweba ipayipi futhi balungiselela imisebenzi yokucisha umlilo. Isibonelo, uma isakhiwo sine-valve eyomile eyenziwe ngesandla kanye nabasebenzi benjini abangaphandle babika ukuthi baxhumeke esakhiweni futhi banikeze amanzi, kodwa isicishamlilo esiphakamayo sivula i-valve yezitezi kodwa akuphumi lutho. Yini inkinga? Ingabe isistimu yonakele, ingabe ivalve yegumbi lepompo ivaliwe, noma ingabe injini ixhumeke ekuxhumekeni okungalungile kwesikhuphukeli? Uma umphathi wesigameko efunda ngokushesha ngenkinga, kuba lula ukuyilungisa ngaphandle kokwandisa kakhulu isikhathi sokuphendula (isikhathi kusukela ekuthumeni kuya ekucindezelweni komlilo). Izithombe 4 kanye nezi-5 zibonisa izicishamlilo ezitholakala esakhiweni esihlala abantu e-Oklahoma City, e-Oklahoma. Indawo yayihlelwe ngaphambili futhi ukuxhumana kwesikhuphukeli kwaxoxwa namalungu amasha. Esinye isibonelo sokumisa izicishamlilo uhlelo olumanzi lwezandla oluxhunywe ezitezi eziphansi, ezinezitezi eziningi ngaphezu kwendawo yomlilo. Uhlelo olumanzi lugcwaliswa ngamanzi kodwa aluxhunyiwe ohlelweni lokuphakelwa kwamanzi olunomfutho. Ekuhlanganeni kwesitezi sesihlanu sesakhiwo esinezitezi eziyi-10 kuya kweziyi-15, kunesistimu yesikhuphukeli esigcwele amanzi esingamafidi angu-120 kuya kwangu-150 ubude ngaphezu kwendawo ehlanganayo. Lokhu kuzodala ukucindezela kwekhanda okungamaphawundi angama-60 kuye kwangama-70 iyintshi yesikwele (psi) ukusuka emanzini angaphezu kwevalvu esemgqeni. Khumbula ukuthi unyawo ngalunye lokukhuphuka kwesikhuphukeli luzosebenza ngo-0.434 psi wokucindezela. Esibonelweni esingenhla, amafidi angu-120 × 0.434 = 52 psi, namafidi angu-150 × 0.434 = 65 psi. Uma uvumela i-valve ukuthi igeleze umzuzwana owodwa, uhlelo lubonakala lunokucindezela okwanele nomthamo wamanzi. Kodwa-ke, empeleni, ipayipi idonsa amanzi kuphela epayipini elingaphezulu kwalo, ngoba ipayipi lepayipi lenzelwe ukuthi umnyango wezomlilo unikeze amanzi okucisha umlilo. Yingakho kubalulekile ukugeza amanzi anele ukuze kutholakale ukuthi ipayipi livele likhishwe noma lihlinzekwe emthonjeni wamanzi. Isimo esifanayo kulolu hlobo lwesistimu ukuthi ngezinye izikhathi iphampu encane elawulwayo inikeza amanzi ohlelweni. Uma uvula i-valve futhi kuphuma amanzi amancane kuphela, ipompo ye-booster izoqala futhi kancane kancane izame ukugcwalisa uhlelo. Uma abasebenzi bengenakho ukugeleza okwanele, umqhubi uzocabanga ngephutha ukuthi kukhona umthombo wamanzi. Abasebenzi abashesha ukufunda mayelana nezimpendulo zale mibuzo, kulapho abangabhekana khona ngokushesha futhi bayinqobe. Uma uthatha isikhathi sokulungiselela, ukusebenza kwesikhuphukeli kungaba okuhlelekile futhi kungabi nengcindezi. Zijwayeze lezi zinto ezincane, hlanganisa ukuqeqeshwa ngokungahleliwe, bese uzama ukuxazulula izinkinga ezingaba khona zepayipi elimile. Khumbula, uma senza izinto ezincane kahle, zengeza impumelelo enkulu, engenza umsebenzi wokucisha umlilo uhambe kahle. U-JOSH PEARCY waqala umsebenzi wakhe wokucisha umlilo ngo-2001 njengommeli eMnyangweni Wezomlilo wase-Oklahoma City (OK) wabelwa esiteshini esikhethekile sokuhlenga. Uyizimo eziphuthumayo kazwelonke ezibhalisiwe kanye nezokucisha umlilo, i-EMS, umfundisi we-diving kanye nobuchwepheshe bokuhlenga. Ungumfundisi we-FDIC International kanye nomphathi wethimba lokusesha kanye nezokuhlenga/uchwepheshe wokuhlenga unophephela emhlane wethimba le-OK-TF1 lokusesha nokuhlenga emadolobheni.