Isingeniso
Esahlukweni esandulele kuboniswe ukuthi izimo zezibalo eziqondile zamandla asetshenziswa uketshezi lapho kuphumula zingatholakala kalula.Lokhu kungenxa yokuthi ku-hydrostatic kuphela amandla okucindezela alula ahilelekile.Uma kucatshangelwa uketshezi olunyakazayo, inkinga yokuhlaziya ngesikhathi esisodwa iba nzima kakhulu.Akukhona nje kuphela ukuthi ubukhulu be-particle velocity kanye nesiqondiso kufanele kucatshangelwe, kodwa kuphinde kube nomthelela oyinkimbinkimbi we-viscosity obangela ukugunda noma ingcindezi ephikisanayo phakathi kwezinhlayiya zamanzi ezihambayo kanye nemingcele equkethe.Ukunyakaza okuhlobene okungenzeka phakathi kwezakhi ezihlukene zomzimba owuketshezi kubangela ukucindezela nokucindezeleka kwe-shear kuhluke kakhulu ukusuka kwelinye iphuzu kuye kwelinye kuye ngezimo zokugeleza.Ngenxa yobunkimbinkimbi obuhambisana nokugeleza, ukuhlaziywa kwezibalo okunembayo kungenzeka kuphela kokumbalwa, futhi ngokombono wobunjiniyela, okunye okunganakwenzeka, izimo. Ngakho-ke kuyadingeka ukuxazulula izinkinga zokugeleza noma ngokuhlola, noma ngokwenza ukucatshangelwa okuthile okwenza kube lula okwanele ukuthola isisombululo setiyetha.Lezi zindlela ezimbili azihlukani, njengoba imithetho eyisisekelo yomakhenikha ihlezi isebenza futhi ivumela izindlela zethiyori ngokwengxenye ukuthi zamukelwe ezimweni ezimbalwa ezibalulekile.Futhi kubalulekile ukuqinisekisa ngokuhlolwa izinga lokuchezuka ezimeni zangempela ngenxa yokuhlaziywa okwenziwe lula.
Ukucatshangwa okuvame kakhulu ukwenza lula ukuthi uketshezi lulungile noma luphelele, ngaleyo ndlela kuqedwe imiphumela eyinkimbinkimbi ye-viscous.Lesi isisekelo se-classical hydrodynamics, igatsha lezibalo ezisetshenziswayo elithole ukunakwa yizazi ezivelele njengoStokes, uRayleigh, uRankine, uKelvin kanye neWundlu.Kunemikhawulo engokwemvelo engathi sína emcabangweni we-classical, kodwa njengoba amanzi ane-viscosity ephansi, aziphatha njengoketshezi lwangempela ezimweni eziningi.Ngenxa yalesi sizathu, i-classical hydrodynamics ingase ithathwe njengesizinda esibaluleke kakhulu sokutadisha izici zokunyakaza koketshezi.Isahluko samanje siphathelene nokuguquguquka okuyisisekelo kokunyakaza koketshezi futhi sisebenza njengesethulo esiyisisekelo sezahluko ezilandelayo ezibhekana nezinkinga eziqondile okuhlangatshezwane nazo kuma-hydraulic yobunjiniyela bomphakathi.Izibalo ezintathu ezibalulekile eziyisisekelo zokunyakaza koketshezi okungukuthi, ukuqhubeka, i-Bernoulli, nezibalo zomfutho zitholwa futhi nokubaluleka kwazo kuyachazwa.Kamuva, ukulinganiselwa kwethiyori yakudala kuyacatshangelwa kanye nokuziphatha koketshezi lwangempela oluchazwe.Uketshezi olungenakucindezelwa lucatshangelwa kulo lonke.
Izinhlobo zokugeleza
Izinhlobo ezihlukahlukene zokunyakaza kwamanzi zingahlukaniswa kanje:
1.I-turbulent kanye ne-laminar
2.Ukuzungeza nokuzungeza
3.Izinzile futhi ayizinzile
4.Umfaniswano futhi awufani.
Iphampu Yendle Engaphansi kwamanzi
Amaphampu ochungechunge lwe-MVS axial-flow AVS amaphampu agelezayo axutshwe (Vertical Axial flow and Mixed flow submersible sewage pump) ayimikhiqizo yesimanje eklanywe ngempumelelo ngendlela yokwamukela ubuchwepheshe besimanje bangaphandle.Umthamo wamaphampu amasha makhulu ngo-20% kunamadala.Ukusebenza kahle kuphezulu ngo-3 ~ 5% kunezakudala.
Ukugeleza kwe-turbulent kanye ne-laminar.
Lawa magama achaza isimo somzimba sokugeleza.
Ekugelezeni okunesiyaluyalu, ukuqhubeka kwezinhlayiya zoketshezi akuvamile futhi kukhona ukushintshashintsha okubonakala kungenangqondo.Izinhlayiya ngazinye zingaphansi kokuguquguquka kwe-trans.isivinini sevesi ukuze umnyakazo ube yi-eddying futhi une-sinuous kunokuba u-rectilinear.Uma udayi ujovwe endaweni ethile, uzosakazeka ngokushesha kuwo wonke umfudlana wokugeleza.Esimeni sokugeleza kwesiyaluyalu epayipini, isibonelo, ukurekhodwa ngokushesha kwesivinini esigabeni kuzoveza ukusabalalisa okulinganiselwe njengoba kuboniswe kuMfanekiso 1(a).Isivinini esiqinile, njengoba singarekhodwa amathuluzi okulinganisa avamile, sikhonjiswe ohlakeni olunamachashazi, futhi kusobala ukuthi ukugeleza okunesiyaluyalu kubonakala ngesivinini esiguquguqukayo esingazinzile esibekwe ngaphezu kwencazelo engaguquki yesikhashana.
Fig.1(a) Ukugeleza kwesiyaluyalu
Fig.1(b) Ukugeleza kwe-laminar
Ekugelezeni kwe-laminar zonke izinhlayiya eziwuketshezi ziqhubeka ezindleleni ezihambisanayo futhi ayikho ingxenye enqamulayo yesivinini.Ukuqhubekela phambili okuhlelekile kunjengoba inhlayiya ngayinye ilandela ncamashi indlela yezinhlayiyana ezandulelayo ngaphandle kokuphambuka.Ngakho umcu omncane wedayi uzohlala unjalo ngaphandle kokusabalalisa.Kukhona igrediyenti yesivinini eguquguqukayo enkulu kakhulu ekugelezeni kwe-laminar(Fig.1b) kunasekugelezeni okunyakazayo.Isibonelo, epayipini, isilinganiso sesilinganiso sesivinini esingu-V kanye nesivinini esiphezulu se-V max ngu-0,5 ngokugeleza okuyaluzayo no-0. ,05 ngokugeleza kwe-laminar.
Ukugeleza kwe-laminar kuhlotshaniswa nesivinini esiphansi kanye noketshezi oluvilaphayo lwe-viscous.Ephayiphini kanye nakuma-hydraulic amashaneli, isivinini cishe ngaso sonke isikhathi siphezulu ngokwanele ukuqinisekisa ukugeleza okuguquguqukayo, nakuba ungqimba oluncane lwe-laminar luphikelela eduze nomngcele oqinile.Imithetho yokugeleza kwe-laminar iqondwa ngokugcwele, futhi ngezimo zomngcele ezilula ukusabalalisa kwesivinini kungahlaziywa ngezibalo.Ngenxa yemvelo yakhona yokushaya ngamandla, ukugeleza okuneziyaluyalu kwehlulekile ukwelashwa okuqinile kwezibalo, futhi ukuze kuxazululwe izinkinga ezingokoqobo, kuyadingeka ukuncika kakhulu ebudlelwaneni obunamandla noma obuncane.
Iphampu yomlilo ye-Turbine emile
Inombolo Model:XBC-VTP
I-XBC-VTP Series amaphampu okucisha umlilo amile kushaft eside awuchungechunge lwesiteji esisodwa, amaphampu okukhipha amanzi esiteji amaningi, akhiwe ngokuvumelana ne-National Standard GB6245-2006 yakamuva.Siphinde sathuthukisa idizayini ngereferensi yezinga le-United States Fire Protection Association.Isetshenziselwa ikakhulukazi ukuhlinzekwa kwamanzi omlilo ku-petrochemical, igesi yemvelo, imboni yamandla, indwangu kakotini, i-wharf, izindiza, indawo yokugcina impahla, izakhiwo eziphakeme nezinye izimboni.Ingasebenza futhi emkhunjini, ithangi lasolwandle, umkhumbi wezicishamlilo nezinye izikhathi zokuhlinzeka.
Ukugeleza okujikelezayo nokuzungezayo.
Ukugeleza kuthiwa kuyazungeza uma uketshezi ngalunye lunesivinini esingama-angular mayelana nesikhungo saso esikhulu.
Umfanekiso 2a ubonisa ukusatshalaliswa kwesivinini okujwayelekile okuhlotshaniswa nokugeleza kwesiyaluyalu kudlule umngcele oqondile.Ngenxa yokusabalalisa isivinini esingalingani, inhlayiya enezimbazo zayo ezimbili ekuqaleni i-perpendicular ishintshashintsha ngezinga elincane lokuzungezisa.Kumfanekiso 2a, igeleza kuyindingilizi.
umzila uyavezwa, ngesivinini esilingana ngokuqondile nerediyasi.Izimbazo ezimbili zezinhlayiyana zizungeza ohlangothini olufanayo ukuze ukugeleza kuphinde kujikeleze.
Fig.2(a) Ukugeleza okujikelezayo
Ukuze ukugeleza kube yi-irrotational, ukusabalalisa kwesivinini eduze komngcele oqondile kufanele kube okufanayo (Fig.2b).Esimeni sokugeleza kumzila oyindilinga, kungase kuboniswe ukuthi ukugeleza okuzuzisayo kuzothinta kuphela inqobo nje uma isivinini silingana ngokuphambene nerediyasi.Uma uthi nhlá uMfanekiso 3, lokhu kubonakala kunephutha, kodwa ukuhlola okuseduze kuveza ukuthi izimbazo ezimbili zizungeza ezinhlangothini eziphambene ukuze kube nomthelela onxephezelayo okhiqiza umumo omaphakathi wama-ax ongashintshile ukusuka kusimo sokuqala.
Fig.2(b) Ukugeleza kwe-Irrotational
Ngenxa yokuthi lonke uketshezi lune-viscosity, ukwehla koketshezi lwangempela akulona neze ukunwaya, futhi ukugeleza kwe-laminar vele kujikeleza kakhulu.Ngakho ukugeleza okuzuzisayo kuyisimo sokucatshangelwa esingaba nesithakazelo sezemfundo kuphela ukube bekungengenxa yokuthi ezimweni eziningi zokugeleza okunesiyaluyalu izici zokujikeleza azibalulekile kangangokuthi zingase zinganakwa.Lokhu kulula ngoba kungenzeka ukuhlaziya ukugeleza kwe-irrotational ngokusebenzisa imiqondo yezibalo ye-classical hydrodynamics okukhulunywe ngayo ngaphambili.
I-Centrifugal Sea Water Destination Pump
Inombolo Model:ASN ASNV
Amaphampu emodeli ye-ASN kanye ne-ASNV angamaphampu esiteji esisodwa esiphindwe kabili ahlukanisa i-volute casing casing centrifugal futhi asetshenzisiwe noma ezokuthutha eziwuketshezi ukuze asebenze amanzi, ukujikeleza kwe-air-conditioning, isakhiwo, ukuchelela, isiteshi sokumpompa amanzi, isiteshi samandla kagesi, uhlelo lokuhlinzeka ngamanzi ezimbonini, ukulwa nomlilo. uhlelo, umkhumbi, isakhiwo nokunye.
Ukugeleza okuzinzile nokungazinzile.
Ukugeleza kuthiwa kuzinzile lapho izimo kunoma isiphi isikhathi zingashintshi ngokuphathelene nesikhathi.Ukuhumusha okuqinile kwale ncazelo kungaholela esiphethweni sokuthi ukugeleza kwesiyaluyalu akuzange kuzinze ngempela.Kodwa-ke, ngenxa yale njongo yamanje kulula ukubheka ukunyakaza koketshezi olujwayelekile njengombandela kanye nokuguquguquka okuguquguqukayo okuhlobene nesiyaluyalu njengethonya lesibili kuphela.Isibonelo esisobala sokugeleza okuzinzile wukuphuma njalo kumsele noma umgudu ovulekile.
Njengomphumela kulandela ukuthi ukugeleza akuzinzile lapho izimo zihluka ngokuphathelene nesikhathi.Isibonelo sokugeleza okungagxilile ukugeleza okuhlukahlukene emhubheni noma kumzila ovulekile;lokhu ngokuvamile into edlulayo elandelanayo, noma elandelwa, ukukhishwa okuzinzile.Okunye okujwayelekile
izibonelo zemvelo yezikhathi ezithile ukunyakaza kwamagagasi kanye nokunyakaza okujikelezayo kwamanzi amaningi ekugelezeni kwamagagasi.
Iningi lezinkinga ezisebenzayo kubunjiniyela be-hydraulic ziphathelene nokugeleza okuzinzile.Lokhu kuyinhlanhla, njengoba ukuguquguquka kwesikhathi ekugelezeni okungagxili kwenza kube nzima kakhulu ukuhlaziya.Ngokunjalo, kulesi sahluko, ukucutshungulwa kokugeleza okungazinzile kuzokhawulelwa ezimweni ezimbalwa ezilula uma kuqhathaniswa.Kubalulekile ukukhumbula, nokho, ukuthi izimo ezimbalwa ezivamile zokugeleza okungagxili zingase zehliselwe esimweni esizinzile ngenxa yesimiso sokunyakaza okuhlobene.
Ngakho-ke, inkinga ehilela umkhumbi ohamba emanzini anganyakazi ingase ichazwe kabusha ukuze umkhumbi ume futhi amanzi aqhubeke;okuwukuphela kwesimo sokufana kokuziphatha koketshezi ukuthi ijubane elihlobene lizofana.Futhi, ukunyakaza kwamagagasi emanzini ajulile kungase kuncishiswe
ukuzinza ngokucabanga ukuthi obukayo uhamba namagagasi ngesivinini esifanayo.
Injini kadizili i-Vertical Turbine multistage centrifugal inline shaft water Pump Iphampu yokudonsa Lolu hlobo lwepompo lokudonsa amanzi oluma mpo lusetshenziselwa ikakhulukazi ukumpompa okungagqwali, izinga lokushisa elingaphansi kuka-60 °C, okuqinile okumisiwe (okungafaki i-fiber, amagrits) ngaphansi kuka-150 mg/L okuqukethwe indle noma amanzi angcolile.Iphampu yamanzi yohlobo lwe-VTP eqondile ikuhlobo lwe-VTP lwamaphampu amanzi aqondile, futhi ngesisekelo sokwanda kanye nokhololo, setha ukugcotshwa kukawoyela weshubhu kungamanzi.Ingabhema izinga lokushisa elingaphansi kuka-60 °C, ithumele ukuqukatha okusanhlamvu okuqinile okuthile (okufana nensimbi eyizilahlwa nesihlabathi esicolekileyo, amalahle, njll.) yendle noma amanzi alahlwayo.
Ukugeleza okufanayo nokungafani.
Ukugeleza kuthiwa kuyafana uma kungekho ukushintshashintsha kobukhulu kanye nesiqondiso se-vector yesivinini ukusuka kwelinye iphuzu ukuya kwelinye endleleni yokugeleza.Ukuze kuthotyelwe le ncazelo, kokubili indawo yokugeleza nesivinini kufanele kufane kuzo zonke iziqephu.Ukugeleza okungeyona into efanayo kwenzeka lapho ivekhtha yesivinini ihluka ngendawo, isibonelo esijwayelekile ukugeleza phakathi kwemingcele eguquguqukayo noma ephambukayo.
Zombili lezi zimo zokugeleza zivamile kuma-hydraulic amashaneli, nakuba sikhuluma ngokuqinile, njengoba ukugeleza komfaniswano kuhlale kusondela ngendlela engabonakali, kuyisimo esikahle esilinganiselwe kuphela nesingakaze sifinyelelwe.Kufanele kuqashelwe ukuthi izimo zihlobene nesikhala kunesikhathi futhi ngakho-ke ezimeni zokugeleza okuvalekile(isb.amapayipi ngaphansi kwengcindezi), azimele nhlobo ekuzinzeni noma ekungazinzini kokugeleza.
Isikhathi sokuthumela: Mar-29-2024