Kutheni Uvavanyo Lokuhamba Kwesantya Somlilo Oluchanekileyo Lubalulekile?
Ii-hydraulics ezisebenzisa umlilo zixhomekeke ekuqinisekisweni okubonakalayo kunezimvo zethiyori. Umahluko phakathi kwetshathi yepompo yesixhobo kunye nokukhupha komlomo womlomo unokumisela impumelelo okanye ukungaphumeleli kohlaselo lomlilo lwangaphakathi. Uvavanyo lokuhamba kwamanzi lubonelela ngesiqinisekiso sokuba iphakheji yohlaselo—equka ipompo,ipayipi, kunye nomlomo womlilo—ihambisa iigaloni ezilindelekileyo ngomzuzu (GPM). Phantsi kwemigangatho ye-NFPA ka-1962, amasebe omlilo anikwe igunya lokwenza uvavanyo lwaminyaka le lweepayipi kunye nezixhobo, kodwa uvavanyo lokuhamba kwamanzi kwindawo yomlilo lufuna ukuqonda okunzulu kwezinto eziguquguqukayo ze-hydraulic ukuqinisekisa ukuba imisebenzi yokucima ihlangabezana nomlinganiselo wobushushu ofunekayo.
Indlela ukuchaneka kokuhamba kwamanzi okuchaphazela ngayo ukusebenza komgca wohlaselo
Indlela ephambili yokucima umlilo kukupholisa, okuhambelana ngqo nokuhamba kwamanzi. Igaloni enye yamanzi ifunxa malunga nee-BTU ezingama-9,346 xa iguqulwa ngokupheleleyo ibe ngumphunga kwi-212°F (100°C). Ngenxa yoko, umgca wokuhlasela ohamba ngempumelelo kwi-150 GPM uvelisa amandla okupholisa angaphezu kwe-1.4 yezigidi ze-BTU ngomzuzu. Nangona kunjalo, ukuba ukulahleka kokungqubana okungalinganiswanga okanye iziphene ze-nozzle kunciphisa loo manzi ukuya kwi-115 GPM, amandla okupholisa ehla phantse ngama-330,000 BTU ngomzuzu. Olu kusilela luchaphazela ngokuthe ngqo amandla eqela lohlaselo okunqoba izinga lokukhululwa kobushushu (HRR) kwimithwalo yamafutha eyenziweyo yanamhlanje, okwandisa umngcipheko wokubaleka kobushushu okanye ukutsha.
Ngaphezu koko, ukuchaneka kokugeleza kwamanzi kulawula ngokuthe ngqo amandla okusabela kwe-nozzle. Ukuba i-nozzle ezenzekelayo ifuna i-100 PSI ukuze igeleze i-150 GPM, impendulo ye-nozzle ephumayo imalunga neekhilogram ezingama-76 zamandla. Utshintsho lokugeleza kwamanzi olungalindelekanga lunokushiya umlambo ungasebenzi kakuhle ngoomatshini okanye lucinezele umgca kakhulu, ludinise umzimba umqhubi we-nozzle kwaye lunciphise ukunyamezela kwawo ukusebenza.
Indlela yokuchaza amazinga okuhamba kwe-nozzle ekujoliswe kuyo
Ukusekaamazinga okuhamba komlomo womlilo ekujoliswe kuwoifuna ukubala ukuhamba komlilo okufunekayo (i-RFF) ngohlobo oluthile lokuhlala, umthwalo womlilo, kunye nenjongo yobuchule. Ifomula ye-National Fire Academy (i-NFA) iyalela ukuba i-RFF ilingane nobude obuphindaphindwe ngobubanzi besakhiwo esibandakanyekayo, yahlulwe kathathu, nto leyo enika i-GPM efunekayo yomgangatho obandakanyekayo ngokupheleleyo.
Kwiindawo zokuhlala eziqhelekileyo, izinga lokuhamba elijolise kuko eliyi-150 ukuya kwi-160 GPM lamkelwe ngokubanzi njengesiseko somgca wesandla oyi-1.75 intshi. Iindawo zorhwebo, ezineesilingi eziphezulu, izicwangciso zomgangatho ovulekileyo, kunye nemithwalo yepetroli exineneyo, zifuna imigca yesandla eyi-2.5 intshi enemijelo ekujoliswe kuyo eqala kwi-250 ukuya kwi-300 GPM. Ukuchaza ezi thagethi kumisela isiseko sazo zonke iimvavanyo zokuhamba okulandelayo. Isebe lomlilo kufuneka lamkele ngokusesikweni ezi parameters ekujoliswe kuzo ngaphambi kokuthenga okanye ukuvavanya ii-nozzles, liqinisekise ukuba iitshathi zoxinzelelo lokukhupha ipompo (PDP) zilinganisiwe ukuze zinikezele ezi nkcukacha zichanekileyo phantsi kweemeko zasentsimini.
Iinguqu zokuhamba kweNozzle yoMlilo ekufuneka zilinganiswe ngaphambi kovavanyo
Ngaphambi kokuba baqalise uvavanyo lokuhamba kwamanzi, abaqhubi kufuneka balinganise izinto eziguquguqukayo ze-hydraulic eziya kuchaphazela iziphumo zovavanyo. I-nozzle yomlilo ayisebenzi yodwa; yinxalenye yesiphelo senkqubo ye-hydraulic eyinkimbinkimbi. Ukungaphumeleli ukuqwalasela iinkcukacha zepayipi, utshintsho lokuphakama, kunye nezixhobo ezingaphakathi kuya kubangela idatha yovavanyo engachanekanga kunye neengcamango zobugcisa ezingalunganga.
Iinkcukacha zeNozzle ezimisela ukuhamba okulindelweyo
Iinkcukacha zomenzi zichaza isantya sokuhamba esilindelekileyo kuxinzelelo oluthile lokusebenza. I-nozzle yefog ene-fixed-gallon ingalinganiswa nge-150 GPM kuxinzelelo lwe-nozzle ye-50, 75, okanye i-100 PSI (NP). I-nozzle ezizenzekelayo zisebenza kwindlela yentwasahlobo eguquguqukayo eyenzelwe ukugcina uxinzelelo lwe-100 PSI oluhlala luhleli kuluhlu lokuhamba, ngesiqhelo i-70 ukuya kwi-200 GPM. I-nozzle ezithambileyo zixhomekeke kububanzi bangaphakathi be-nozzle kunye noxinzelelo lokukhupha, kunye nemisebenzi eqhelekileyo yesandla eboniswe kwi-50 PSI NP.
Ukuqonda i-K-factor ethile ye-nozzle—i-constant emele i-discharge coefficient—kubalulekile. I-K-factor ivumela iingcali ukuba ziqikelele ukuhamba kwamanzi zisebenzisa ifomyula ethi Q = K * sqrt(P). Ukuba i-K-factor ayaziwa, okanye ukuba i-geometry yangaphakathi ye-nozzle yonakele ngenxa yokuguguleka okurhabaxa, ukuhamba kwamanzi okulindelekileyo kuya kwahluka kakhulu kukuhamba kwamanzi okulinganisiweyo ngexesha lovavanyo.
Ububanzi bepayipi, ubude, ukuphakama, kunye nemiphumo yesixhobo
Ulwakhiwo lwepayipi ngaphambi kwe-nozzle luzisa ilahleko yefriction (FL), eyona nto iguquguqukayo kakhulu kwi-hydraulics yendawo yomlilo. Ilahleko yefriction ibalwa kusetyenziswa ifomyula eqhelekileyo FL = C * (Q/100)^2 * L, apho uC yi-friction loss coefficient, u-Q yi-flow kwi-GPM, kwaye u-L bubude bepayipi kwiimitha ezingamakhulu.
Iipayipi zokuhlasela ezilula zanamhlanje zihlala zineedayamitha zangaphakathi ezahlukeneyo (i-ID yokwenyani) kuneepayipi ezindala, nto leyo etshintsha kakhulu i-C coefficient. Umzekelo, ipayipi yanamhlanje eyi-1.75-intshi ene-ID yokwenyani eyi-1.88 intshi inokubonisa ukulahleka kokungqubana kwe-35 PSI ngeenyawo ezili-100 kwi-150 GPM, ngelixa iimodeli ezindala zinokudlula i-50 PSI kuhambo olufanayo. Ukuphakama kukwachaphazela imeko yovavanyo; amandla adonsela phantsi abangela ukulahleka koxinzelelo okanye ukwanda kwe-0.434 PSI ngenyawo nganye yokuphakama, okuqhele ukujikeleziswa ukuya kwi-5 PSI kumgangatho wendawo yokuhlala. Ngaphezu koko, izixhobo ezingaphakathi ezifana neewyes, amasela amanzi, okanye iivalvu eziqhekekileyo zihlala zingenisa i-10 ukuya kwi-25 PSI eyongezelelweyo yokulahleka kokungqubana kuxhomekeke kwisantya sokuhamba okupheleleyo, ekufuneka kufakwe kuxinzelelo lokukhupha ipompo yokuqala ngaphambi kokuba uvavanyo luqale.
Ukuthelekiswa kokuhamba komlomo othambileyo kunye nomlomo wenkungu
Ukuthelekisa i-bore ethambileyo kunye ne-fog nozzles ngexesha lovavanyo lokuhamba kwamanzi kufuna ukulinganisa imilinganiselo. I-smooth bore nozzles ibonelela ngomjelo oqinileyo onexinzelelo lokusebenza eliphantsi, nto leyo enciphisa impendulo ye-nozzles kumqhubi. I-fog nozzles, nokuba izinzile, iyakhethwa, okanye iyazisebenzela, ixhomekeke ekuqhekekeni kwamanzi ngokuchasene ne-baffle ephakathi ukuze yenze ipateni ethile, ngokubanzi ifuna uxinzelelo oluphezulu ukuze isebenze kakuhle.
| Uhlobo lweNozzle | Uxinzelelo oluqhelekileyo lokuSebenza (NP) | Uluhlu oluQhelekileyo lokuhamba kwamanzi (ipayipi ye-intshi eyi-1.75) | Impendulo yeNozzle kwi-150 GPM | Ukuhamba okuGuqukayo okuPhambili okuchaphazelayo |
|---|---|---|---|---|
| I-Smooth Bore (Ingcebiso ye-7/8-intshi) | I-50 PSI | 160 GPM | ~60 lbs | Ububanzi beNcam, Uxinzelelo lwePump |
| Inkungu yeGallonanage eQinisekisiweyo | 50, 75, okanye 100 PSI | 150 – 200 GPM | ~60 – 76 lbs | Ukunxiba Okungaqhelekanga, Uxinzelelo lwePump |
| Inkungu yeGallonanage ekhethiweyo | I-100 PSI | 30 – 200 GPM | Iyaguquguquka | Ukukhethwa koMsebenzisi, iNkunkuma |
| Inkungu Ezenzekelayo | I-100 PSI | 70 – 200 GPM | Iyaguquguquka (ukuya kuthi ga kwi-85 lbs) | Uxinzelelo lweNtwasahlobo, Uxinzelelo lwePump |
Ngexesha lovavanyo lokuhamba kwamanzi, ii-nozzles ezizenzekelayo zihlala zifihla uxinzelelo lwepompo olunganelanga ngokugcina ukufikelela komlambo okwamkelekileyo ngokubonakalayo ngelixa zinciphisa i-GPM ngasese. Ngenxa yokuba intwasahlobo yangaphakathi ilungisa i-baffle ukuze igcine uxinzelelo lwencam, ukwehla koxinzelelo lwepompo kunciphisa nje ubungakanani be-orifice, kunciphisa ukuhamba kwamanzi ngaphandle kokudiliza umlambo. Ii-nozzles ezithambileyo, ngokuchaseneyo, zibonisa umlambo owonakeleyo, othontsizayo xa ucinezelwe ngaphantsi koxinzelelo, zibonelela ngempendulo ebonakalayo kwangoko ngaphambi kokuba imitha yokuhamba iqinisekise ukusilela.
Indlela yokuvavanya isantya sokuhamba kweMibhobho yoMlilo ngokuchanekileyo
Ukwenza uvavanyo oluchanekileyo lokuhamba komlilo kufuna indlela engqongqo, izixhobo ezilinganisiweyo, kunye neemeko ezilawulwayo zokusingqongileyo. Ubuchule bomhlaba kufuneka bulinganiswe nokuchaneka kwesayensi ukuqinisekisa ukuba idatha evelayo inokulawula ngokukhuselekileyo imisebenzi yepompo yomlilo kunye nocwangciso lwangaphambi kwesiganeko.
Inkqubo yovavanyo lokuhamba kwesantya ngesinyathelo
Inkqubo yenyathelo ngenyathelo iqala ngokuseka unikezelo lwamanzi oluqhubekayo noluthembekileyo, okungcono ukuba luthathwe kumthombo ongashukumiyo okanye lunikezelwe ngamanzi amaninzi.umbhobho wokuhambisa amanzi kamasipalaukuthintela ukutshintshatshintsha koxinzelelo lokungenisa. Uyilo lwepayipi kufuneka lubekwe ngokuthe ngqo kwaye lunee-kinks ezincinci okanye ii-golds ezibukhali ukuze kwahlulwe ukulahleka kokungqubana kwi-hose jacket ngokwayo.
Umqhubi wepompo utyhala isixhobo ukuya kwindawo ekujoliswe kuyo. Uxinzelelo lokukhupha iPump (PDP) olubalwe ngokwendlela ethile yoyilo. Nje ukuba umgca utshajwe, umqhubi wepompo uvule ibhele ngokupheleleyo ukuze akhuphe wonke umoya ovalelekileyo aze asuse naluphi na ukungcola kokuqala. Inkqubo kufuneka isebenze kwisimo esizinzileyo ubuncinane imizuzwana engama-45 ukuya kwengama-60 ukuvumela i-pump governor kunye ne-inline hydraulics ukuba zizinzile. Kuphela emva kokuzinza apho kufuneka kuthathwe khona ukufundwa kokuhamba. Kufuneka kuqhutywe iindlela ezininzi—ngesiqhelo izihlandlo ezithathu ngepompo nganye—ukuze kuphunyezwe umlinganiselo woxinzelelo oludlulayo kwaye kuqinisekiswe ukuba luyaphindaphindeka.
Ukusebenzisa ii-pitot gauges, ii-inline flow meter, kunye nee-pump gauges
Ukulinganisa ngokuchanekileyo kuxhomekeke ekukhetheni izixhobo ezifanelekileyo. Ii-Pitot gauges ziyindlela efanelekileyo yokuvavanya ii-nozzles ze-bore ezithambileyo. I-blade ifakwe embindini womlambo oqinileyo, kumgama wesiqingatha sobubanzi bencam ukusuka kwi-orifice. Ukufundwa koxinzelelo emva koko kuguqulwa kube kukuhamba kusetyenziswa ifomula ethi Q = 29.83 * c * d^2 * sqrt(p), apho u-'c' yi-coefficient of discharge (ngesiqhelo yi-0.99 kwii-bore ezithambileyo), u-'d' yincam yencam, kwaye u-'p' yi-pitot pressure.
Kwimibhobho yenkungu, apho iigeyiji zepitot zingenakusetyenziswa ngenxa yokwaphuka komjelo,iimitha zokuhamba komgcaziyimfuneko. Iimitha zokuhamba ze-electromagnetic zanamhlanje zibonelela ngomgangatho ophezulu wokuchaneka, ngokuqhelekileyo ukusuka kwi-+/- 1% ukuya kwi-3% yokufunda, ngaphandle kokufaka ilahleko eyongezelelweyo yokungqubana. Iimitha zokuhamba kwe-paddlewheel nazo zixhaphakile kodwa zifuna ukulinganiswa rhoqo ukuthintela ukwakheka kwezimbiwa ekutshintsheni isantya sokujikeleza. Ukuxhomekeka kuphela kwiimitha zokuhamba zesixhobo somlilo okanye ii-discharge gauges akukhuthazwa kakhulu kuvavanyo lokuqala, njengoko ii-pump panel gauges zihlala zingaphumeleli kumlinganiselo nge-10% nangaphezulu ngenxa yokungcangcazela okuqhubekayo komhlaba womlilo.
Indlela yokurekhoda ukufundwa kokuhamba kwamanzi empumlweni
Ukurekhoda idatha ngexesha lovavanyo kufuneka kwenziwe ngononophelo ukuqinisekisa uhlalutyo olusebenzayo lwexesha elide. Abaqhubi kufuneka babhale phantsi ixesha elichanekileyo losuku, isixhobo esithile esisetyenzisiweyo, umenzi wepayipi kunye nobudala, inombolo yochungechunge lwe-nozzle, i-PDP ekujoliswe kuyo, i-PDP yokwenyani, ukufundwa kwemitha yokuhamba komoya (i-GPM), kunye noxinzelelo lwe-pitot okanye i-nozzle (NP).
Ukusebenzisa ispredishithi esemgangathweni okanye isoftware yovavanyo lwe-hydraulic ezinikeleyo kuqinisekisa ukuba idatha icwangciswe kakuhle. Iingcali kufuneka zibambe ubuncinci amanqaku edatha amathathu ngokuseta i-nozzle. Kwi-nozzles ezikhethiweyo, ukufundwa kufuneka kurekhodwe kuyo yonke i-gallonage setting (umz., 95, 125, 150, 200 GPM) ukuqinisekisa ukuba iringi yokukhetha yangaphakathi iyasebenza ngokufanelekileyo kwaye ihambisa ukuhamba okulinganiselweyo kuxinzelelo oluchaziweyo. Naziphi na izinto ezingaqhelekanga, ezinje ngokuvuza okubonakalayo kwindawo ejikelezayo okanye ukuqina kwe-bale, kufuneka zibhalwe ecaleni kwamanani okuhamba.
Indlela yokutolika iziphumo zovavanyo lwe-Fire Nozzle
Nje ukuba idatha efunyenweyo iqokelelwe, ingqwalasela itshintshela kuhlalutyo lwe-hydraulic. Ukutolika iziphumo zovavanyo lwe-fire nozzle kubandakanya ukuchonga ukungangqinelani phakathi kweetshathi zepompo zethiyori kunye nokusebenza kwehlabathi lokwenyani, ukufumanisa izizathu eziphambili zokungabikho kwemali, kunye nokwenza ngcono iphakheji yohlaselo ukuze isetyenziswe.
Iipateni zokusilela ezibangelwa kukulahlekelwa kukungqubana okanye iingxaki zezixhobo
Ukuchonga ukusilela kokuhamba kwamanzi kufuna ukwahlulwa ngokwenkqubo kwezinto eziguquguqukayo. Isantya sokuhamba kwamanzi esiphantsi kunokulindelekileyo sidla ngokubangelwa kukulahleka okukhulu kokungqubana kwipayipi, ivalvu yokukhupha ipompo engasebenzi kakuhle, okanye ukuvaleka kwangaphakathi kwimpumlo.
| Iimpawu / Iziphumo zoVavanyo | Unobangela onokwenzeka | Isenzo Sokuxilonga | Ungenelelo olufunekayo |
|---|---|---|---|
| Ukuhamba kwamanzi okungaphezulu kwe-15% ngaphantsi kwethagethi; i-NP ichanekile | Ububanzi bencam bugugile (umngxuma ogudileyo) okanye umonakalo womngxuma (inkungu) | Linganisa incam ngee-calipers; hlola i-baffle | Buyisela incam okanye wakhe kwakhona i-nozzle core |
| Ukuhamba kwamanzi kungaphantsi kwe-15%; i-NP iphantsi | Ukulahleka okukhulu kokungqubana kwindlela yokubeka ipayipi | Faka igeyiji engaphakathi emva kwe-nozzle ukuze ujonge i-NP | Bala kwakhona itshathi yepompo ukuze ufumane i-FL ephezulu |
| Ukuhamba komoya kutshintshatshintsha kakhulu (+/- 20 GPM) | Inkunkuma ekwi-stream shaper okanye kwi-paddlewheel meter | Hlola imitha engaphakathi kunye nesikrini se-nozzle | Inkqubo yokucoca; coca izikrini zangaphakathi |
| Ukuhamba kwamanzi aphezulu, impendulo ye-nozzle ephezulu kakhulu | Uxinzelelo olugqithisileyo kwipompo | Jonga ukulinganiswa kwegeyiji yokukhupha iphaneli yepompo | Linganisa iigeyiji zepompo; iPDP ephantsi |
Kwimibhobho ezenzekelayo, indlela eqhelekileyo yokusilela kukudinwa kwentwasahlobo. Kwiminyaka emininzi yokusebenza, intwasahlobo yangaphakathi ilahlekelwa kukuxinana, nto leyo ebangela ukuba i-baffle ivuleke ngaphambi kwexesha xa uxinzelelo luphantsi. Oku kubangela ukuba i-nozzle inike umjelo onzima, onesantya esiphantsi ongaphumeleliyo ukufikelela nokungena okufunekayo, nokuba imitha yokuhamba emgceni ibonisa ukuba i-GPM yanele ngokwetekhnoloji. Ukuqaphela ezi patheni zokusilela koomatshini kubalulekile ukuze kuchazwe ngokuchanekileyo.
Ixesha Lokulungisa, Ukuvavanya Kwakhona, okanye Ukutshintsha IiNozzles Zomlilo
Idatha efunyenwe kuvavanyo lokuhamba kwamanzi kufuneka iqhubele phambili izigqibo ezinokuthi zithathwe malunga nokugcinwa kwezixhobo, imisebenzi yamaqhinga, kunye nenkcitho yemali. Uvavanyo luxabiseke kuphela ukuba umbutho uzimisele ukulungisa iiparameters zawo zokusebenza, ukuvavanya kwakhona izinto ezingasebenziyo, okanye ukusebenzisa icebo lokutshintsha xa izixhobo zifikelela esiphelweni sobomi bazo.
Ixesha lokulungisa uxinzelelo lwepompo, ulwakhiwo lwepayipi, okanye useto lwe-nozzle
Uhlengahlengiso lolona siphumo siqhelekileyo sovavanyo lokuhamba kwamanzi kwindawo yomlilo. Ukuba umlomo awusebenzi kakuhle ngenxa yokulahleka kokungqubana kwepayipi okungalindelekanga, isenzo sokulungisa kwangoko kukuhlaziya iitshathi zepompo zesebe. Umzekelo, ukuba i-crosslay yeenyawo ezingama-200 ifuna i-145 PSI PDP ukuze ifikelele kwi-150 GPM endaweni ye-130 PSI yethiyori, incwadi yemiyalelo yomqhubi wepompo kufuneka ibonise umgangatho omtsha we-145 PSI.
Nangona kunjalo, ukuba ukulungisa i-PDP kutyhala impendulo ye-nozzle ngaphaya komlinganiselo we-ergonomic we-65 ukuya kwi-75 yeepawundi zomcimi-mlilo omnye, kufuneka uhlengahlengiso lobuchule. Isebe linokufuna ukutshintsha ukusuka kwi-100 PSI fog nozzle ukuya kwi-50 PSI low-pressure fog nozzle okanye i-smooth bore nozzle ukuze kufezekiswe i-GPM ekujoliswe kuyo ngaphandle kokudinisa umqhubi. Emva kwalo naluphi na uhlengahlengiso olubonakalayo kwindlela ye-nozzle, njengokuqinisa i-baffle ekhululekileyo, ukuthambisa i-valve yesilayidi, okanye ukutshintsha i-gasket egugileyo, kufuneka kwenziwe uvavanyo oluyimfuneko ukuqinisekisa ukuba izinga lokuhamba libuyele kwi-+/- 10% tolerance band eyamkelekileyo.
Isakhelo sesigqibo sokutshintshwa kwemilomo kunye nokuthengwa kwayo
Xa uhlengahlengiso kunye nokulungiswa kungaphumeleli ukulungisa ukungabikho kokuhamba kwamanzi, kufuneka kuqaliswe inkqubo eqinileyo yokwenza izigqibo zokutshintshwa. Ii-nozzles eziphantsi kweendawo ezinzima zomlilo zinexesha elide lokusebenza, zihlala iminyaka eli-10 ukuya kweli-15 kuxhomekeke kwinani lokugcinwa, umgangatho wamanzi, kunye nomthamo wokusetyenziswa. Ukuba i-nozzle ayiphumeleli kuvavanyo lwayo lokuhamba kwamanzi ngaphezulu kwe-10% kwaye ingcali eqinisekisiweyo igqiba kwelokuba ukuguguleka kwangaphakathi akunakulungiswa ngekhithi yokuvuselela eqhelekileyo (edla ngokubiza i-$50 ukuya kwi-$150), ukutshintshwa kuyimfuneko.
Amagosa okuthenga kufuneka aqwalasele iindleko ezikhoyo ngokuimilomo yomlilo yodidi lobungcali, ngokubanzi ukusuka kwi-$600 ukuya kwi-$1,200 ngeyunithi nganye kwiintambo ezisemgangathweni, ukuya kuthi ga kwi-$2,500 kwizixhobo ezikhethekileyo zomsinga. Ukongeza, amaxesha okuthenga kufuneka alawulwe; ii-nozzles ezenziwe ngokwezifiso okanye uqwalaselo oluthile lwentambo lunokuthwala amaxesha okukhokela eeveki ezi-4 ukuya kwezi-8. Ukuseka ubungakanani obuncinci be-odolo (MOQ) yokutshintshwa kweenqwelo-moya kunokubangela izaphulelo zevolumu, okuvumela isebe ukuba litshintshele ibhetalini yonke kwi-nozzle entsha, evavanywe ukuhamba kwamanzi ngaxeshanye, ngaloo ndlela liqinisekisa ukusebenza okufanayo kwe-hydraulic kuzo zonke izixhobo zokuphendula.
Imibuzo ebuzwa qho
Kutheni abasebenzi kufuneka baqinisekise ukuhamba kwempumlo yomlilo endaweni yokuthembela kwiitshathi zepompo?
Iitshati zepompo ziindawo zokuqala, azingqinelani. Ukulahleka kokungqubana kwepayipi, imiqathango yesixhobo, ukuphakama, ukujija, kunye nemeko yempumlo kunokunciphisa i-GPM yokwenyani, okuchaphazela amandla okupholisa, ukufikelela komlambo, kunye nokhuseleko lwabasebenzi.
Yintoni i-target flow eqhelekileyo kumgca wokuhlasela we-1.75-intshi?
Amasebe amaninzi asebenzisa i-150 ukuya kwi-160 GPM njengesiseko sendawo yokuhlala kwintambo yesandla eyi-1.75-intshi, kodwa injongo yokugqibela kufuneka ihambelane nendawo yokuhlala, umthwalo womlilo, iphakheji yepayipi, uhlobo lwe-nozzle, kunye neendlela zesebe.
Kufuneka kwenziwe uvavanyo lwepayipi kunye nezixhobo kangaphi?
I-NFPA 1962 ifuna uvavanyo lwaminyaka le lweepayipi zomlilo kunye nezixhobo. Amasebe kufuneka enze uvavanyo lokuhamba kombane emva kokutshintsha ii-nozzles, imithwalo yepayipi, izixhobo, iitshathi zepompo, okanye iinkqubo zokusebenza ezisemgangathweni.
Zeziphi izinto eziguquguqukayo ekufuneka zirekhodwe ngexesha lovavanyo lokuhamba kwempumlo?
Rekhoda imodeli yempumlo kunye noxinzelelo, ububanzi kunye nobude bepayipi, uxinzelelo lokukhupha ipompo, utshintsho lokuphakama, izixhobo ezingaphakathi, i-GPM elinganisiweyo, umgangatho womsinga, kunye nokusabela kwempumlo. Ezi nkcukacha zenza iziphumo ziphindeke.
Ngaba umlomo womlilo ozenzekelayo unganika iziphumo ezilahlekisayo zokuhamba kwamanzi?
Ewe. Ii-nozzles ezizenzekelayo zinokugcina ukubonakala komjelo kuluhlu loxinzelelo, nto leyo enokufihla ukungoneli kokuhamba kwamanzi. Soloko uqinisekisa i-GPM yokwenyani ngemitha yokuhamba kwamanzi elinganisiweyo, indlela ye-pitot, okanye useto lovavanyo oluqinisekisiweyo.
Ixesha lokuthumela: Juni-22-2026