Indlela Yokubala Ikhanda Lephampu？
Endimeni yethu ebalulekile njengabakhiqizi bephampu ye-hydraulic, siyazi ngenani elikhulu lezinto eziguquguqukayo okudingeka zicatshangelwe lapho kukhethwa iphampu efanele yohlelo lokusebenza oluthile. Inhloso yalesi sihloko sokuqala ukuqala ukukhanyisa inani elikhulu lezinkomba zobuchwepheshe ngaphakathi kwendawo yonke yephampu ye-hydraulic, kuqala ngepharamitha ethi “ikhanda lephampu”.
Iyini i-Pump Head?
Ikhanda lephampu, elivame ukubizwa ngokuthi ikhanda eliphelele noma ikhanda eliphelele eliguquguqukayo (TDH), limelela amandla aphelele anikezwa uketshezi yiphampu. Libala inhlanganisela yamandla okucindezela kanye namandla e-kinetic anikezwa yiphampu kuketshezi njengoba luhamba ohlelweni. Ngamafuphi, singachaza futhi ikhanda njengokuphakama okuphezulu kokuphakamisa iphampu ekwazi ukukudlulisela kuketshezi olupompiwe. Isibonelo esicacile yileso sephampu eqondile ekhuphuka ngqo kusuka endaweni yokukhipha. Uketshezi luzopompiwa phansi ephayiphini ngamamitha ama-5 ukusuka endaweni yokukhipha yiphampu enekhanda elingamamitha ama-5. Ikhanda lephampu lihlobene ngokuphambene nezinga lokugeleza. Lapho izinga lokugeleza lephampu liphezulu, ikhanda liphansi. Ukuqonda ikhanda lephampu kubalulekile ngoba kusiza onjiniyela ukuthi bahlole ukusebenza kwephampu, bakhethe iphampu efanele yokusetshenziswa okuthile, futhi baklame izinhlelo zokuthutha uketshezi ezisebenzayo.
Izingxenye zePump Head
Ukuze uqonde ukubalwa kwekhanda lephampu, kubalulekile ukuhlukanisa izingxenye ezifaka isandla ekhanda eliphelele:
Ikhanda Eliqinile (Hs): Ikhanda eliqinile libanga eliqondile phakathi kwamaphuzu okumunca nokukhipha iphampu. Libangela ushintsho lwamandla olungaba khona ngenxa yokuphakama. Uma iphuzu lokukhipha liphakeme kunephuzu lokumunca, ikhanda eliqinile lihle, kanti uma liphansi, ikhanda eliqinile lihle.
Ikhanda Lejubane (Hv): Ikhanda lejubane amandla e-kinetic adluliselwa kuketshezi njengoba luhamba emapayipini. Kuncike ejubaneni loketshezi futhi kubalwa kusetshenziswa i-equation:
Hv=V^2/2g
Kuphi:
- Hv= Ikhanda lejubane (amamitha)
- V= Ijubane loketshezi (m/s)
- g= Ukusheshisa ngenxa yamandla adonsela phansi (9.81 m/s²)
Ikhanda Lokucindezela (Hp): Ikhanda lokucindezela limelela amandla afakwe oketshezini yiphampu ukuze kunqotshwe ukulahlekelwa yingcindezi ohlelweni. Lingabalwa kusetshenziswa isibalo sikaBernoulli:
Hp=Pd−I-Ps/ρg
Kuphi:
- Hp= Ikhanda lokucindezela (amamitha)
- Pd= Ingcindezi endaweni yokukhipha (Pa)
- Ps= Ingcindezi endaweni yokumunca (Pa)
- ρ= Ubuningi boketshezi (kg/m³)
- g= Ukusheshisa ngenxa yamandla adonsela phansi (9.81 m/s²)
Ikhanda Lokungqubuzana (Hf): Ikhanda lokushayisana libangela ukulahlekelwa kwamandla ngenxa yokushayisana kwamapayipi kanye nokufakwa kwawo ohlelweni. Lingabalwa kusetshenziswa i-equation kaDarcy-Weisbach:
Hf=fLQ^2/D^2g
Kuphi:
- Hf= Ikhanda lokushayisana (amamitha)
- f= Isici sokungqubuzana kwe-Darcy (engenakulinganiswa)
- L= Ubude bepayipi (amamitha)
- Q= Izinga lokugeleza (m³/s)
- D= Ububanzi bepayipi (amamitha)
- g= Ukusheshisa ngenxa yamandla adonsela phansi (9.81 m/s²)
Isibalo Senhloko Esiphelele
Inhloko iyonke (H) kohlelo lokuphampa yisamba sazo zonke lezi zingxenye:
H=Hs+Hv+Hp+Hf
Ukuqonda lesi sibalo kuvumela onjiniyela ukuthi baklame izinhlelo zokupompa ezisebenza kahle ngokucabangela izici ezifana nesivinini sokugeleza esidingekayo, ubukhulu bepayipi, umehluko wokuphakama, kanye nezidingo zokucindezela.
Ukusetshenziswa Kwezibalo Zekhanda Lephampu
Ukukhethwa Kwephampu: Onjiniyela basebenzisa izibalo zekhanda lephampu ukukhetha iphampu efanele yohlelo oluthile. Ngokunquma ikhanda eliphelele elidingekayo, bangakhetha iphampu engahlangabezana nalezi zidingo ngempumelelo.
Umklamo Wesistimu: Ukubalwa kwekhanda lephampu kubalulekile ekuklameni izinhlelo zokuthutha uketshezi. Onjiniyela bangakwazi ukulinganisa amapayipi futhi bakhethe izinto zokufaka ezifanele ukuze banciphise ukulahlekelwa kokungqubuzana futhi bandise ukusebenza kahle kohlelo.
Ukusebenza Kahle Kwamandla: Ukuqonda ikhanda lephampu kusiza ekwenzeni ngcono ukusebenza kwephampu ukuze kusetshenziswe kahle amandla. Ngokunciphisa ikhanda elingadingekile, onjiniyela banganciphisa ukusetshenziswa kwamandla kanye nezindleko zokusebenza.
Ukulungiswa Nokuxazulula Izinkinga: Ukuqapha ikhanda lephampu ngokuhamba kwesikhathi kungasiza ekuboneni izinguquko ekusebenzeni kwesistimu, okubonisa isidingo sokulungisa noma sokuxazulula izinkinga ezifana nokuvinjelwa noma ukuvuza.
Isibonelo Sokubala: Ukunquma Inhloko Yephampu Ephelele
Ukuze sibonise umqondo wokubala ikhanda lephampu, ake sicabangele isimo esilula esihilela iphampu yamanzi esetshenziselwa ukunisela. Kulesi simo, sifuna ukuthola ukuthi inhloko yephampu iyonke iyadingeka ukuze kusatshalaliswe amanzi kahle kusuka echibini kuya ensimini.
Amapharamitha Anikeziwe:
Umehluko Wokuphakama (ΔH): Ibanga eliqondile ukusuka ezingeni lamanzi echibini kuya endaweni ephakeme kakhulu ensimini yokunisela ngamamitha angama-20.
Ukulahlekelwa Ikhanda Okungqubuzanayo (hf): Ukulahlekelwa kokungqubuzana okubangelwa amapayipi, izinto zokufaka, nezinye izingxenye ohlelweni kufinyelela kumamitha angu-5.
Ikhanda Lejubane (hv): Ukuze kugcinwe ukugeleza okuzinzile, kudingeka ijubane elithile elingamamitha amabili.
Ikhanda Lokucindezela (hp): Ikhanda lokucindezela elengeziwe, njengokunqoba umlawuli wokucindezela, lingamamitha ama-3.
Ukubala:
Inhloko yephampu ephelele (H) edingekayo ingabalwa kusetshenziswa lesi sibalo esilandelayo:
Inhloko Yephampu Ephelele (H) = Umehluko Wokuphakama/Inhloko Engaguquki (ΔH)/(hs) + Ukulahlekelwa Yikhanda Elingqubuzanayo (hf) + Inhloko Yejubane (hv) + Inhloko Yokucindezela (hp)
H = amamitha angu-20 + amamitha angu-5 + amamitha angu-2 + amamitha angu-3
Ububanzi = amamitha angu-30
Kulesi sibonelo, ikhanda eliphelele lephampu elidingekayo ohlelweni lokunisela ngamamitha angu-30. Lokhu kusho ukuthi iphampu kumele ikwazi ukunikeza amandla anele ukuphakamisa amanzi ngamamitha angu-20 ngokuqondile, ukunqoba ukulahlekelwa kokungqubuzana, ukugcina ijubane elithile, nokunikeza ingcindezi eyengeziwe njengoba kudingeka.
Ukuqonda nokubala ngokunembile ikhanda lephampu eliphelele kubalulekile ekukhetheni iphampu enobukhulu obufanele ukuze kufezwe izinga lokugeleza elifunekayo ekhanda elilinganayo eliphumayo.
Ngingasitholaphi isithombe sekhanda lephampu?
Inkomba yekhanda lephampu ikhona futhi ingatholakala ku-amashidi edathayayo yonke imikhiqizo yethu eyinhloko. Ukuze uthole ulwazi olwengeziwe ngemininingwane yobuchwepheshe yamaphampu ethu, sicela uxhumane nethimba lobuchwepheshe kanye nelokuthengisa.
Isikhathi sokuthunyelwe: Septhemba-02-2024