Ikhanda, ukugeleza namandla kuyimingcele ebalulekile yokuhlola ukusebenza kwephampu:

1.Izinga lokugeleza

Izinga lokugeleza kwepompo libizwa nangokuthi umthamo wokulethwa kwamanzi.

Isho inani lamanzi alethwa yiphampu ngesikhathi seyunithi. Imelelwe uphawu Q, iyunithi yayo ilitha/yesibili, cubic meter/yesibili, cubic meter/ihora.

2.Ikhanda

Inhloko yepompo ibhekisela ekuphakameni lapho iphampu ingampompa khona amanzi, ngokuvamile amelelwa uphawu H, futhi iyunithi yayo iyimitha.

Ikhanda le iphampu yokudonsa kabili isekelwe kumugqa omaphakathi we-impeller futhi iqukethe izingxenye ezimbili. Ukuphakama okuqondile ukusuka kumugqa omaphakathi we-impeller yepompo kuya emanzini omthombo wamanzi, okungukuthi, ukuphakama lapho iphampu ingamunca khona amanzi, kubizwa ngokuthi i-suction lift, okubizwa ngokuthi i-suction lift; ukuphakama okuqondile ukusuka ku-centerline we-impeller yepompo ukuya emanzini echibini lokuphuma, okungukuthi, ipompo yamanzi ingacindezela amanzi phezulu Ukuphakama kubizwa ngokuthi ikhanda lamanzi okucindezela, okubizwa ngokuthi i-stroke yokucindezela. Okusho ukuthi, ikhanda lepompo lamanzi = ikhanda lokumunca amanzi + ikhanda lokucindezela kwamanzi. Kufanele kuphawulwe ukuthi ikhanda elimakwe ku-nameplate libhekisela ekhanda ukuthi iphampu yamanzi ngokwayo ingakhiqiza, futhi ayifaki ikhanda lokulahlekelwa okubangelwa ukumelana nokungqubuzana kokugeleza kwamanzi epayipi. Lapho ukhetha iphampu yamanzi, qaphela ukuthi ungayinaki. Uma kungenjalo, amanzi ngeke ampontshwe.

3. Amandla

Inani lomsebenzi owenziwa umshini ngesikhathi seyunithi libizwa ngokuthi amandla.

Ngokuvamile imelelwa uphawu N. Amayunithi asetshenziswa ngokuvamile: kilogram m/s, kilowatt, horsepower. Ngokuvamile iyunithi yamandla yemoto kagesi iboniswa ngama-kilowatts; iyunithi yamandla yenjini kadizili noma injini kaphethiloli iboniswa ngamandla ehhashi. Amandla adluliselwa umshini wamandla ku-shaft yepompo abizwa ngokuthi amandla e-shaft, angaqondwa njengamandla okufaka wepompo. Ngokuvamile, amandla epompo abhekisela kumandla we-shaft. Ngenxa yokumelana nokungqubuzana kokuthwala nokupakisha; ukungqubuzana phakathi kwe-impeller namanzi lapho ephenduka; i-vortex yokugeleza kwamanzi epompo, igebe elibuyela emuva, indawo yokungena nokuphumayo, kanye nomthelela womlomo, njll. Kufanele kudle ingxenye yamandla, ukuze iphampu ingakwazi ukushintsha ngokuphelele amandla okufaka omshini wamandla amandla asebenzayo, futhi kufanele kube nokulahlekelwa kwamandla, okusho ukuthi, isamba samandla asebenzayo wepompo kanye nokulahlekelwa kwamandla epompo amandla e-shaft wepompo.

Ikhanda lephampu, ifomula yokubala ukugeleza:

Lisho ukuthini ikhanda lephampu H=32?

Ikhanda H=32 lisho ukuthi lo mshini ungakhuphula amanzi abe ngamamitha angama-32

Ukugeleza = indawo ephambanayo * isivinini sokugeleza Isivinini sokugeleza sidinga ukukalwa uwena: isitophuwashi

Isilinganiso sokuphakanyiswa kwephampu:

Inhloko yepompo ayihlangene namandla, ihlobene nobubanzi be-impeller yepompo kanye nenani lezigaba ze-impeller. Ipompo enamandla afanayo ingase ibe nenhloko yamakhulu amamitha, kodwa izinga lokugeleza lingase libe ngamamitha-skwele ambalwa, noma ikhanda lingase libe ngamamitha ambalwa kuphela, kodwa izinga lokugeleza lingase libe ngamamitha angu-100. Amakhulu ezinkomba. Umthetho ojwayelekile wukuthi ngaphansi kwamandla afanayo, izinga lokugeleza kwekhanda eliphezulu lincane, futhi izinga lokugeleza kwekhanda eliphansi likhulu. Alikho ifomula yokubala evamile yokunquma ikhanda, futhi kuya ngezimo zakho zokusebenzisa kanye nemodeli yepompo evela efekthri. Ingabalwa ngokusho kwe-pump outlet pressure gauge. Uma indawo yepompo ingu-1MPa (10kg/cm2), ikhanda lilinganiselwa kumamitha ayi-100, kodwa umthelela wokucindezela kokumunca nawo kufanele ucatshangelwe. Kupompo ye-centrifugal, inamakhanda amathathu: ikhanda langempela lokumunca, ikhanda langempela lokucindezela kwamanzi kanye nekhanda langempela. Uma kungacacisiwe, ngokuvamile kukholelwa ukuthi ikhanda libhekisela kumehluko wokuphakama phakathi kwezindawo ezimbili zamanzi.

Lokhu esikhuluma ngakho lapha ukubunjwa kokumelana kwesistimu yamanzi abandayo ye-air conditioning evaliwe, ngoba lolu hlelo luwuhlelo oluvame ukusetshenziswa.

Isibonelo: Ukulinganisa ikhanda lepompo lokumunca kabili

Ngokwalokhu okungenhla, ukulahlekelwa kwengcindezi yohlelo lwamanzi omoya opholile wesakhiwo esiphakeme esingaba ngu-100m ukuphakama kungase kulinganiswe cishe, okungukuthi, ukuphakamisa okudingwa yiphampu yamanzi ejikelezayo:

1. Ukumelana ne-Chiller: thatha i-80 kPa (ikholomu yamanzi angu-8m);

2. Ukumelana namapayipi: Thatha ukumelana kwedivayisi yokuqeda ukungcola, umqoqi wamanzi, isihlukanisi samanzi kanye nepayipi egumbini lesiqandisi njengo-50 kPa; thatha ubude bepayipi ohlangothini lokudlulisela nokusabalalisa njengo-300m kanye nokumelana okuqondile kokungqubuzana okungu-200 Pa/m, bese Ukumelana nokungqubuzana kungu-300*200=60000 Pa=60 kPa; uma ukumelana kwendawo ohlangothini lokudlulisa nokusabalalisa kungu-50% wokumelana nokungqubuzana, ukumelana kwendawo kungu-60 kPa*0.5=30 kPa; ukumelana okuphelele kwepayipi lesistimu ngu-50 kPa+ 60 kPa+30 kPa=140 kPa (ikholomu yamanzi engu-14m);

3. Ukumelana nomshini wokugcina we-air conditioner: ukumelana kwe-air conditioner ehlanganisiwe ngokuvamile kukhulu kunaleyo yeyunithi yekhoyili ye-fan, ngakho-ke ukumelana kokuqala kungu-45 kPa (ikholomu yamanzi angu-4.5); 4. Ukumelana kwe-valve yokulawula izindlela ezimbili: 40 kPa (ikholomu yamanzi angu-0.4) .

5. Ngakho-ke, isamba sokumelana nengxenye ngayinye yohlelo lwamanzi sithi: 80 kPa+140kPa+45 kPa+40 kPa=305 kPa (30.5m ikholomu yamanzi)

6. Ikhanda lepompo lokumunca kabili: Ukuthatha isici sokuphepha esingu-10%, ikhanda H=30.5m*1.1=33.55m.

Ngokwale miphumela yokulinganisa engenhla, ububanzi bokulahlekelwa kwengcindezi yesistimu yamanzi okupholisa umoya yezakhiwo zesilinganiso esifanayo bungabanjwa ngokuyisisekelo. Ikakhulukazi, kufanele kuvinjelwe ukuthi ukulahlekelwa kwengcindezi yesistimu kukhulu kakhulu ngenxa yezilinganiso ezingabaliwe futhi ezilondolozayo, futhi ikhanda lepompo lamanzi likhethwa likhulu kakhulu. Okuholela ekumoshweni kwamandla.