Kungani i-Brass iyizinto ezijwayelekile embonini ye-nozzle yamanzi omlilo?

Kungani Ukukhetha Izinto Zokubhoboza Amanzi Omlilo Kubalulekile

Ukukhethwa kwezinto zokwakhaimishini yokucima umlilokuyisinqumo esibalulekile sobunjiniyela esinquma ukulungela ukusebenza, izikhawu zokulungisa, kanye nokusebenza kahle kokuphendula eziphuthumayo. I-nozzle yamanzi omlilo isebenza njengendawo yokugcina yokulethwa koketshezi kunoma yiluphi uhlelo lokucindezela, ibeka izinto zokwakha ngaphansi kwamandla amakhulu e-hydraulic, ukuchayeka okunzima kwemvelo, kanye nokuhlukunyezwa ngokomzimba okukhulu.

Nakuba ubunjiniyela besimanje buqalise izindlela ezahlukene zokwenziwa kanye nezinsimbi ezilula, ukukhethwa kwezinto kuseyisona sizathu esiyinhloko sokuphila kwesikhathi sokusebenza kwe-nozzle. Onjiniyela bokuthenga kumele bahlole izinto hhayi nje ngezindleko zabo zokuqala zokuthenga, kodwa nangokuzinza kwazo kwensimbi, ukuqina kwemishini ngaphansi kwengcindezi, kanye nokungavikeleki ekuwohlokeni kwemvelo eminyakeni engamashumi eminyaka yokulinda okuthule.

Umthelela kwezentengiselwano wokukhetha izinto zomlomo

Ukuhlaziya izindleko eziphelele zobunikazi (i-TCO) kwembula ukuthi intengo yokuqala yokuthenga imele kuphela u-15% kuya ku-20% wezindleko zomjikelezo wokuphila komlomo wombhobho wamanzi omlilo. Umlomo wethusi wezimboni ojwayelekile uvame ukuba nezindleko zokuqala zemali engu-$80 kuya ku-$150, cishe u-30% kuya ku-40% ophakeme kunamamodeli e-aluminium alinganayo akhishwe. Kodwa-ke, umthelela wezentengiselwano ubonakala emjikelezweni wokufaka esikhundleni kanye nokugcinwa kwempahla.

Amayunithi ethusi avame ukudlula iminyaka eyi-15 kuya kwengama-20 yenkonzo eqhubekayo ezindaweni zezimboni ezinzima. Ngokuphambene nalokho, izinto zokwakha ezisezingeni eliphansi zingadinga ukushintshwa njalo eminyakeni emi-3 kuya kwemi-5 ngenxa yokuguguleka kwentambo, ukugqwala kwe-galvanic, noma ukuguqulwa komthelela. Ngaphezu kwalokho, abaphathi bezikhungo kumele babhekane nezindleko zesikhathi sokungasebenzi kanye nokuhambisana nomshuwalense; ukwehluleka okukhulu kwe-nozzle eyonakele ngesikhathi somlilo kungabangela izigidi zamaRandi ekulahlekelweni kwezentengiselwano ezingenamshwalense kanye nezijeziso ezinzima zomthetho.

Izincazelo zombhobho wamanzi omlilo oyinhloko

Ukuze bachaze ngokunembile izinto zokwakha, onjiniyela kumele baqonde izincazelo eziyisisekelo ze-hydraulic ezilawula ukusebenza kwe-nozzle. Izindinganiso zokucindezela kokusebenza zivame ukusuka ku-75 PSI kuya ku-100 PSI yezintambo ezijwayelekile, kodwa amadivayisi amakhulu okusakaza kanye nama-monitor ezimboni angadlula njalo ku-250 PSI. Izinto zokwakha kumele zibe namandla okudonsa anele ukuze zikwazi ukumelana nalezi zingcindezi eziqhumayo ngaphandle kokuvumela okuncane kakhulu.

Amazinga okugeleza alinganiswa ngama-Gallons Ngomzuzu (i-GPM), kanye nama-nozzles ethusi ajwayelekile ezimboni aletha ukugeleza okulinganisiwe phakathi kuka-60 no-125 GPM. Izindlela zokuwohloka kwezinto, njengokugqwala kwe-galvanic kanye ne-cavitation, ziyizincazelo ezibalulekile zamaqembu okuthenga. I-cavitation yenzeka lapho ingcindezi yoketshezi yendawo yehla ngaphansi kwengcindezi yomusi, okubangela ukuqhuma okuncane okungalimaza izinto zomlomo eziphansi ngesilinganiso esingu-0.1mm kuya ku-0.5mm minyaka yonke, okuphambukisa ngokungenakuguqulwa iphethini yokugeleza ehlosiwe.

Kungani Ithusi Liyinto Ejwayelekile Yokubhoboza Amanzi Omlilo

I-Brass igcine isikhundla sayo njengendinganiso yemboni engenakuphikiswa yama-nozzle amanzi omlilo ngenxa yokulinganisela okuhle kwezakhiwo zemishini, ukusinda kokushisa, kanye nomnotho wokukhiqiza. Le nto ngokuyinhloko iyingxube yethusi ne-zinc, eyenzelwe ngqo ukumelana nobunzima bokuguquguquka koketshezi olusheshayo kanye nokushaqeka okukhulu kokushisa.

Ukuvikelwa komlilo wezimboniizinhlelo zithembele kakhulu kuma-alloy ajwayelekile ethusi njenge-C36000 (i-Free-Cutting Brass) kanye ne-C46400 (i-Naval Brass). Lezi zinhlanganisela ezithile zensimbi zinikeza inhlanganisela eyingqayizivele yobuningi, ukuzigcoba, kanye nobuqotho besakhiwo ama-polymers okwenziwa kanye nezinsimbi ezilula ezingenakukwazi ukuziphinda ezicelweni zokuphepha empilweni.

Ukumelana nokugqwala kanye nokulawulwa kwe-dezincification

Ithusi eliphuzi elijwayelekile liqukethe cishe ithusi elingu-61.5% kanye ne-zinc engu-35.5%. Ezindaweni ezine-chemistry yamanzi enamandla, ukususwa kwe-zinc—inqubo lapho i-zinc iphuma khona ngokukhetha kusuka ku-matrix ye-alloy, ishiya isakhiwo sethusi esibuthakathaka nesingenazo izimbobo—ibeka ingozi enkulu yokuhluleka. Lokhu konakala kusheshiswa ezindleleni zamanzi ezimile ezinamazinga e-chloride angaphezu kuka-250 mg/L.

Ukuze kulwiwe nalokhu kusengozini, ama-nozzle amanzi omlilo asezingeni eliphezulu asebenzisa ama-alloy ethusi e-Dezincification Resistant (DZR). Lawa mazinga akhethekile afaka inani eliqondile le-arsenic (0.02% kuya ku-0.10%) noma i-antimony ukuze kuqiniswe i-zinc matrix. Lokhu kulungiswa kwe-metallurgical kuqinisekisa ukuthi i-nozzle igcina ubuqotho bayo besakhiwo kanye namakhono okugcina ingcindezi ngisho noma ibhekene nemithombo yamanzi kamasipala enzima noma ama-reservoirs ezimboni angalungiswanga eminyakeni eminingi.

Amandla okucindezela, ukumelana nokushaya, kanye nokubekezelela ukushisa

Ukuqina komshini wethusi kubalulekile ezinhlelweni zokucindezela okuphezulu. Ama-alloy ajwayelekile ethusi asetshenziswa ekwakhiweni kwama-nozzle abonisa amandla okudonsa asukela ku-310 MPa kuya ku-450 MPa, ahlinzeka ngesilinganiso sokuphepha esiyingqayizivele ngokumelene nokushaqeka okungazelelwe kwe-hydraulic kanye nemiphumela yesando samanzi evame ukudlula i-300 PSI. Lawa mandla okudonsa avimbela ukwanda noma ukuqhuma komzimba wama-nozzle ngesikhathi sokucindezela kokuqala.

Ukumelana nomthelela kanye nokubekezelela ukushisa kuyimingcele ebalulekile ngokulinganayo. Izindinganiso ze-NFPA zivame ukudinga ama-nozzle ukuze asinde ekuweni okuningi kukhonkrithi kusukela ekuphakameni okufika kumamitha angu-1.8 (1.8). Ngenkathi izingxenye ze-aluminium zingase ziqhekeke futhi ziguquguquke—zibeke engcupheni ngokushesha ama-flow baffles angaphakathi noma ukubandakanyeka kwentambo—ithusi limunca amandla e-kinetic ngokuphambuka okuncane kobukhulu. Ngaphezu kwalokho, ithusi liqhosha ngephuzu lokuncibilika elicishe libe ngu-900°C kuya ku-940°C, okuqinisekisa ukuthi i-nozzle ngeke incibilike noma iguquguquke ngendlela eyingozi ngesikhathi sezimo ze-flashover, ngokungafani ne-aluminium encibilika ku-660°C kuphela.

Ukukwazi ukusebenza ngomshini, ukuzinza kobukhulu, kanye nokulungiswa

Ngokombono wokukhiqiza, ithusi elisika ngokukhululeka le-C36000 liphethe isilinganiso sokulinganisa somhlaba wonke esingu-100%. Lokhu kuvumela izikhungo zokugaya ze-CNC ukuthi zifinyelele ukubekezelelana okuqinile kakhulu, ngokuvamile ngaphakathi kwamasentimitha angu-±0.001. Ukunemba okunjalo kubaluleke kakhulu kumaphrofayili e-National Standard Thread (NST) ayinkimbinkimbi okugaya kanye nezindlela zokugeleza kwangaphakathi, ngaleyo ndlela kuncishiswe ukuxokozela koketshezi futhi kwandiswe ukufinyelela komfudlana.

Ukuqina kobukhulu bethusi kuchaza ngqo ukulungiswa kwensimu kanye nokuthembeka kokusebenza. Izakhiwo zalo ezizigcobayo ezingokwemvelo zivimbela ukugoba kwentambo—inkinga evamile lapho ukungqubuzana kubangela ukushibilika okuncane phakathi kwezindawo zokuhlangana, okuvame ukubonwa lapho kuhlanganiswa izingxenye zensimbi engagqwali ngaphansi kokucindezeleka. Ngaphezu kwalokho, ama-nozzle ethusi anikeza ukulungiswa komjikelezo wokuphila okungcono kakhulu; izintambo ezonakele zivame ukuxoshwa futhi zibuyiselwe kusetshenziswa ompompi abajwayelekile, okwandisa impilo yesevisi futhi kunciphise kakhulu izindleko zokulungisa eziphelele.

Izinto Zokuvula Amanzi Omlilo Ezihlukile Zethusi vs.

Nakuba ithusi lihlala liyindinganiso evelele yezicelo ezisindayo, ubunjiniyela besimanje bokuvikela umlilo buvame ukuhlola ezinye izinto ukuze kuthuthukiswe imingcele ethile yokusebenza. Ukuqonda amandla nobuthakathaka obuqhathaniswayo balezi zinto kubalulekile ekuchazeni imishini efanele yezindawo zokusebenza ezikhethekile.

Ithebula lokuqhathanisa izinto zokukhetha i-nozzle

I-matrix elandelayo ichaza izilinganiso zokusebenza okubucayi zethusi uma kuqhathaniswa nezinto ezivamile ezisetshenziswa kwezinye izintoukukhiqizwa kwe-nozzle yamanzi omlilo.

Lapho ithusi lisebenza kahle kakhulu kunezinye izinto

Ithusi lihlala lidlula ezinye izinto ezisetshenziswayo ezindaweni zezimboni ezisindayo, eminyangweni yomlilo kamasipala, kanye nasezisetshenzisweni zamapayipi okuhweba lapho imishini iphathwa kabi futhi igcinwa isikhathi eside. Izakhiwo zayo zokuzigcoba zinciphisa kakhulu ingozi yokuqhekeka kwentambo, inzuzo enkulu yokusebenza lapho abacishi bomlilo kumele baxhume ngokushesha amapayipi nezinto zikagesi ngaphansi kokucindezeleka okukhulu kwengqondo nokomzimba.

Ubuningi bethusi obungokwemvelo (cishe 8.4 kuya ku-8.7 g/cm³) bunikeza inzuzo engavamile yokunganakwa ekusetshenzisweni okuqinile noma okunzima. Lokhu kuqina kunciphisa umsindo wokudlidliza kwe-hydraulic kanye nomsindo we-cavitation, okunikeza opharetha amandla okusabela kwe-nozzle azinzile futhi abikezelwayo lapho bekhipha amanzi ngesivinini esingaphezu kwamamitha ayi-100 ngomzuzwana. Lokhu kuzinza kunzima ukukufeza ngama-polymers alula kakhulu noma i-aluminium enodonga oluncane.

Ungakhetha nini i-aluminium, insimbi engagqwali, ithusi, noma inhlanganisela

Naphezu kokubusa kwethusi, imikhawulo ethile yokusebenza ilawula ukusetshenziswa kwezinto ezihlukile. I-aluminium eqinile iyindlela ekhethwayo yokulwa nomlilo endle nasemahlathini, lapho abasebenzi kumele baphathe imishini endaweni ende ende; umlomo we-aluminium unesisindo esingaba ingxenye eyodwa kwezintathu zethusi elilingana nalo, okunciphisa kakhulu ukukhathala.

Insimbi engagqwali (ngokuvamile engu-316L) iyadingeka ezindaweni ezingcolisa kakhulu i-petrochemical noma ezindaweni ezisogwini lapho ukuchayeka kuma-asidi aqinile noma ukufuthwa kukasawoti okuqhubekayo kudlula amandla okuvikela ethusi elijwayelekile le-DZR. Ithusi (ingxube yethusi ne-tin) liyadingeka ekusetshenzisweni okunzima kakhulu kwasolwandle ngenxa yokuqukethwe kwalo kwe-zinc okucishe kube yi-zero, okususa ngokuphelele izingozi zokuqothula. Okokugcina, amapulasitiki ahlanganisiwe (i-polycarbonate noma i-nylon egcwele ingilazi) akhawulelwe ekusetshenzisweni kwezolimo okunengcindezi ephansi noma okulula lapho ingcindezi yokusebenza ihlala ingaphansi kwama-75 PSI kanye nemikhawulo eqinile yesabelomali inquma izindleko zeyunithi ezingaphansi kwama-$20.

Imininingwane Yezimbozo Zamanzi Omlilo kanye Nokuhlolwa Kokuhambisana Nemithetho

Ukuthola i-nozzle yamanzi omlilo kudinga ukunamathela ngokuqinile ezindinganisweni zokuphepha zomhlaba wonke kanye nezinqubo zokuqinisekisa ikhwalithi eqinile. Abathengi abakwazi ukuthembela kuphela ekubukekeni okubonakalayo kwengxenye yethusi; kumele baqinisekise ukuthi imikhiqizo ekhethiwe ihlangabezana nezilinganiso zokusebenza kanye nezilinganiso eziqinile zensimbi.

Ukwehluleka ukuqinisekisa lezi zincazelo ngesikhathi sokuthenga kungabangela ukuthengwa kwemishini engaphansi kwekhwalithi ehluleka ngaphansi kwengcindezi, okusongela ukuphepha kokuphila kanye nokungasebenzi kahle kwezinqubomgomo zomshuwalense wesikhungo.

Izindinganiso, izilinganiso zokucindezela, imicu, kanye namaphethini okugeleza

I-National Fire Protection Association (NFPA) 1964 Standard for Spray Nozzles ibeka imigomo yokusebenza eqinile, okuhlanganisa nokuhlolwa kwe-hydrostatic okuphoqelekile. Ama-nozzles ahambisanayo kumele amelane nengcindezi ye-hydrostatic proof efinyelela ku-900 PSI ngaphandle kokuqhekeka noma ukuguquka okungapheli, futhi asebenze ngokungenaphutha ngengcindezi yawo yokusebenza elinganisiwe, ngokuvamile i-100 PSI.

Imininingwane yentambo kumele ihambisane ngokuqinile ne-NFPA 1963 noma amazinga alinganayo endawo, okuqinisekisa ukusebenzisana okungenamthungo nama-hydrant kamasipala akhona kanye nokuxhumeka kwamapayipi (isb., i-NH, i-NST, noma i-NPSH). Ngaphezu kwalokho, amaphethini okugeleza—asukela ekusakazeni okuqondile okugxilile kuya enkunguni ebanzi evikelayo engama-degrees angu-120—kumele alinganiswe kahle ukuze alethe i-GPM ecacisiwe ngaphakathi komkhawulo wokubekezelelana oqinile we-±5% kulo lonke uhla lwengcindezi.

Ibanga le-alloy yethusi kanye nekhwalithi yokukhiqiza

Ubuqotho bensimbi ye-alloy yethusi yisona sizathu esiyinhloko sekhwalithi yokukhiqiza kanye nobude besikhathi sokuphila. Imininingwane yokuthengwa kumele isho ngokucacile amazinga e-alloy amukelekayo, njenge-C46400 (Naval Brass) yokumelana nomswakama okuthuthukisiwe noma i-C37700 yezingxenye ezibunjiwe ezinamandla aphezulu. Ukufaka esikhundleni se-alloy ye-premium nge-brass eshibhile, ene-lead ephezulu kulimaza kakhulu amandla omshini womkhiqizo oqediwe.

Izinqubo zokulawula ikhwalithi esikhungweni sokukhiqiza kufanele ziphoqelele ukuhlolwa kwe-spectrometer yokukhipha ugesi ukuze kuqinisekiswe ukwakheka kwamakhemikhali, kuqinisekiswe ukuthi amazinga e-zinc ahlala ngaphakathi komkhawulo ongu-35% kuya ku-39% ukuvimbela ukuqhekeka. Ngaphezu kwalokho, abathengi kufanele bacacise amazinga aphezulu okubhoboka kwama-nozzles ethusi ahlanganisiwe, ngokuvamile bafune izinga lokukhubazeka kwevolumu elingaphansi kuka-1% ukuvimbela ukuvuza okuncane kakhulu kanye nokuqhekeka ngaphansi kokucindezeleka okukhulu kwe-hydraulic.

Iziqu zomhlinzeki kanye nokulawulwa kwengozi yokuthengwa kwempahla

Ukulawulwa kwengozi yokuthengwa okuphumelelayo kudinga iziqu eziqinile zomhlinzeki ngaphambi kokukhipha ama-oda okuthenga. Abakhiqizi kumele bagcine imithetho esebenzayo.I-ISO 9001:2015izitifiketi zokuphathwa kwekhwalithi futhi ukwazi ukuhlinzeka ngemibiko yokuhlolwa kwezinto zohlobo lwe-EN 10204 Type 3.1 (MTRs) yeqoqo ngalinye lokukhiqiza, ukuqinisekisa ukulandeleka okuphelele kusuka ku-ingot eluhlaza kuya ku-nozzle eqediwe.

Lapho kusungulwa izintambo zokuhlinzeka ngama-nozzles ethusi enziwe ngokwezifiso noma e-OEM, amaqembu okuthenga kufanele alindele ukuthi inani elincane le-oda (ama-MOQ) lisukela kumayunithi angu-500 kuya ku-1,000 ezinhlangano ezenziwe ngokwezifiso, kanye nezikhathi ezijwayelekile zokuhola zokukhiqiza ezithatha amasonto angu-8 kuya kwangu-12. Ukwenza ukuhlolwa kwangaphambi kokuthunyelwa okuzimele komuntu wesithathu (kusetshenziswa izinhlaka ezifana ne-SGS noma i-Bureau Veritas) kunciphisa ingozi yokuthola imikhiqizo engahambisani nemithetho engase yehluleke kakhulu ngesikhathi sokuphendula okuphuthumayo.

Indlela Abathengi Okufanele Bakhethe Ngayo I-Brass Fire Water Nozzle

Ukukhetha okungcono kakhuluumlomo wamanzi omlilo wethusikudinga indlela ehlelekile elinganisela imali yokuqala esetshenzisiwe kanye nokuthembeka kokusebenza kwesikhathi eside. Amaqembu okuthenga kumele abhekane nokushintshana kobunjiniyela okuyinkimbinkimbi ukuqinisekisa ukuphepha okuphezulu, ukuthobela imithetho, kanye nenzuzo ekutshalweni kwezimali.

Ngokuyeka ukuthenga okusekelwe ezimpahleni kanye nokusebenzisa isu lokuthenga eligxile emjikelezweni wokuphila, izinhlangano zinganciphisa kakhulu imithwalo yazo yokulungisa yesikhathi eside ngenkathi zithuthukisa ukulungela kwazo umlilo jikelele.

I-matrix yezinqumo zentengo, izindleko zomjikelezo wokuphila, kanye nokusebenza

I-matrix yesinqumo elandelayo inikeza uhlaka lokuvumelanisa ukukhethwa kwe-alloy yethusi nezimo ezithile zokusetshenziswa, imijikelezo yokuphila elindelekile, kanye nokucatshangelwa kwe-OPEX.

Izinyathelo zokukhetha ezisebenzayo zamaqembu okuthenga

Amaqembu okuthenga kufanele enze inqubo yokukhetha enembile, enezinyathelo ezine ukuqinisekisa ukusebenza kahle kwe-nozzle. Okokuqala, yenza ukuhlolwa okuphelele komthombo wamanzi wesikhungo, ulinganise amazinga e-pH kanye nokuhlushwa kwe-chloride ukuze kutholakale ukuthi ithusi elijwayelekile le-C36000 lanele noma ukuthi ithusi elikhethekile le-DZR liyadingeka (kunconywa kakhulu ukuze kutholakale amazinga e-chloride angaphezu kuka-200 mg/L njalo).

Okwesibili, qinisekisa ukuhambisana kwentambo nengqalasizinda yendawo ukuze uvimbele ukubambezeleka kokuthunyelwa. Okwesithathu, bala izinga lokugeleza elidingekayo kanye nokuguquguquka kwengcindezi—ucacisa, isibonelo, i-nozzle yokugeleza engaguquki elinganiswe kahle ku-95 GPM ku-100 PSI. Okokugcina, cela idatha yokuhlola evela kumenzi, kufaka phakathi izitifiketi zokuhlolwa kokuwa okungamamitha ayi-6 kanye nemibiko yokusebenza kwe-valve yemijikelezo eyi-1,000, ukuqinisekisa ukuqina komshini wama-valve ebhola angaphakathi kanye nezindlela zokulawula ukugeleza.

Uma ithusi liyisinqumo esihle kakhulu sezinto ezibonakalayo

I-Brass isalokhu iyinto engaphikiswana ngayo ekhethwayo yezindawo zokukhiqiza ezisindayo, amapayipi okwakha izakhiwo zezentengiselwano (izinhlelo ze-Class I ne-Class III), kanye nokusetshenziswa kwemililo kamasipala okudingakalayo. Kulezi zimo, imishini yokucindezela ingase ihlale ingasebenzi amashumi eminyaka kodwa kulindeleke ukuthi isebenze kahle ngomthamo omkhulu ngesikhathi esifushane.

Inhlanganisela eyingqayizivele yamandla aphezulu okudonseka (kufika ku-450 MPa), ukumelana nokushisa okungenakuqhathaniswa (ukusinda emazingeni okushisa afinyelela ku-900°C), kanye nokungavikeleki ngokuphelele ekuboshweni kwentambo kuqinisekisa ukuthi umlomo wamanzi omlilo wethusi uletha umjikelezo wokuphila othembekile ovame ukudlula iminyaka eyi-15 kuya kwengama-20. Ezikhungweni ezibeka phambili ukuphepha kokuphila, ukuthobela imithetho eqinile, kanye nokunakekelwa okuncane, ithusi lezinga eliphezulu linikeza ikhambi lobunjiniyela elingenakuqhathaniswa nelivivinywe isikhathi eside.

Izinto Ezibalulekile Okufanele Uzicabangele

• Ama-nozzle amanzi omlilo wethusi avame ukunikeza iminyaka engu-15 kuya kwengu-20 yenkonzo ezindaweni zezimboni ezinzima, okunciphisa imvamisa yokushintsha uma kuqhathaniswa nezinto ezisezingeni eliphansi ezingase zihlale iminyaka emi-3 kuya kwemi-5 kuphela.
• Amaqembu okuthenga kufanele ahlole izindleko eziphelele zobunikazi ngoba intengo yokuqala ye-nozzle ingabalelwa ku-15% kuya ku-20% kuphela wezindleko zomjikelezo wokuphila.
• Ama-nozzle ajwayelekile asebenza ngomugqa wesandla ngokuvamile asebenza ku-75 kuya ku-100 PSI, kuyilapho izinhlelo zokusebenza ze-monitor zezimboni zingadlula i-250 PSI, okwenza amandla ezinto ezibonakalayo kanye nobuqotho bentambo kube yinto ebalulekile.
• Ama-alloy ethusi afana ne-C36000 kanye ne-C46400 ahlinzeka ngebhalansi esebenzayo yokumelana nokugqwala, ukusebenza kahle kwemishini, ubuningi, kanye nokuzinza kwemishini yemishini yokuphepha empilweni.
• Ukugqwala kanye nokuvuvukala kungalimaza izinto zombhobho ophansi ngo-0.1 mm kuya ku-0.5 mm ngonyaka, okungase kuphazamise ukugeleza okulinganisiwe kanye namaphethini okufafaza.

imibuzo ejwayelekile ukubuzwa

Kungani ama-nozzle amanzi omlilo ethusi ethandwa kakhulu kunezinhlobo ze-aluminium?

I-Brass inikeza ukumelana nokugqwala okunamandla, ukuqina okungcono kwentambo, kanye nokuphila isikhathi eside kwenkonzo ezindaweni ezinzima. Nakuba ingabiza kakhulu ngo-30% kuya ku-40% kusengaphambili kune-aluminium, ivame ukuhlala iminyaka eyi-15 kuya kwengama-20 uma kuqhathaniswa neminyaka emi-3 kuya kwemi-5 kwezinye izindlela ezisezingeni eliphansi.

Iyiphi ingcindezi yokusebenza okufanele i-nozzle yamanzi omlilo imelane nayo?

Ama-nozzle ajwayelekile asebenza ngomugqa wesandla ngokuvamile asebenza cishe ku-75 kuya ku-100 PSI, kuyilapho ama-monitor ezimboni asebenza kanzima angadlula i-250 PSI. Izinto ze-nozzle kumele zimelane nokuguquguquka, ukulimala kwentambo, kanye nengozi yokuqhuma ngaphansi kwale mithwalo ye-hydraulic.

Ithusi lizinciphisa kanjani izindleko zomjikelezo wokuphila kwabathengi bokuvikela umlilo bezimboni?

Intengo yokuqala yokuthenga ingase imele kuphela u-15% kuya ku-20% wezindleko zomjikelezo wokuphila. Ama-nozzle ethusi anciphisa ukuvama kokushintsha, umsebenzi wokulungisa, ingozi yesikhathi sokungasebenzi, kanye nokukhathazeka ngokuhambisana nomthetho, okwenza kube ngcono ukusetshenziswa kwezimboni kanye nolwandle isikhathi eside.

Yiziphi izinsimbi zethusi ezivame ukusetshenziswa kuma-nozzles amanzi omlilo?

Izinketho ezivamile zifaka phakathi ithusi elisika ngokukhululeka i-C36000 kanye nethusi lasolwandle i-C46400. Lezi zinsimbi zihlanganisa ukusebenza kahle, ukumelana nokugqwala, ubuningi, kanye nokuqina kwemishini, okwenza zifaneleke kakhulu emishinini yokucima umlilo.

Ingabe ukugqwala kungathinta ukusebenza kwesifutho se-nozzle?

Yebo. Ukugqwala, ukugoba, kanye nokuguga kwentambo kungaphazamisa i-geometry yangaphakathi ye-nozzle, kunciphise ukunemba kokugeleza kanye nokuvumelana kwephethini yokufafaza. Ezimweni ezimbi kakhulu, ukuguguleka kwe-cavitation kungasusa u-0.1 mm kuya ku-0.5 mm wezinto ngonyaka.