Ngenxa yokuthi ukusetshenziswa kwephampu ye-slurry kubanzi kakhulu, uhlobo loketshezi oludluliswayo kwesinye isikhathi lubuye lube umehluko omkhulu, izimo ezahlukahlukene zomsebenzi zinezidingo ezihlukile zokugeleza kwepompo nokucindezela, ukuze kuhlangatshezwane nezidingo zokusebenza kwepompo ezindaweni ezahlukahlukene. , kunezinhlobo eziningi zepompo, ngokuvamile zingahlukaniswa ngokuvumelana nesimiso sokusebenza sepompo, futhi ukusetshenziswa kwayo kunganikeza ukuphakamisa. Ngokwesimiso sokusebenza sepompo singahlukaniswa sibe yiphampu yokufuduka enhle, ipompo ye-vane kanye nolunye uhlobo lwamaphampu izigaba ezintathu
Amaphampu ahambayo ancike ekushintsheni kwevolumu okwenziwa ngezikhathi ezithile ukumunca umthamo wokusebenza kanye noketshezi olukhiphayo, lapho umthamo womsebenzi ukhuphuka, uketshezi olumunca iphampu; lapho kuncipha, i-pump ikhipha uketshezi. Izici ze-Kinematic ngokusho komsebenzi walolu hlobo lwe-Li zihlukaniswe zibe:
1. Indlela yokusebenza yephampu ephindaphindayo yokunyakaza okuphindaphindayo. Lolu hlobo lwepompo luyipompo ye-piston, i-piston, i-diaphragm chestnut nokunye.
2.Ama-ejensi amaphampu e-Rotary asebenza ngokuzungeza kwe-eksisi engaguquki. Lolu hlobo lwepompo yiphampu yegiya, iphampu yesikulufu,imboni yephampu yamatsheamaphampu ane-vane ashelelayo.
I-vane chestnut incike ekujikelezeni okukodwa noma okuningana kwejubane eliphezulu kwe-impeller ukukhuthaza ukugeleza koketshezi, ukufeza ukuthuthwa koketshezi. Ngokusho koketshezi oluya ngalapho kugeleza khona iphampu ye-vane ihlukaniswe yaba:
1.Uketshezi lwephampu lugeleza kakhulu epompo, amandla aphusha ukugeleza koketshezi lapho amandla amaphakathi akhiqizwa ukuzungezisa kwe-impeller.
(2) Uketshezi lwe-axial lugeleza nge-axial ngepompo, amandla aphusha i-axial thrust ye-axial flow ekhiqizwa lapho ukuzungezisa.
3. Uketshezi lwepompo lokugeleza olugeleza ku-pump shaft luye ku-engeli ethile, amandla aphusha ukugeleza koketshezi lapho amandla amaphakathi akhiqizwa ukuzungezisa kwe-impeller kanye ne-axial thrust force.
4 – I-Vortex futha uketshezi empompini yokugeleza kwe-vortex eqondile, ukuncika ekuzungezweni kwe-impeller kukhuthaza ama-vortices akhiqizwa ukunyakaza kokumunca uketshezi kanye noketshezi olukhiphayo.
Ezinye izinhlobo zamaphampu ngokuvamile zithembele kolunye uketshezi (uketshezi, igesi) amandla noma amandla e-kinetic hydrostatic transmission fluid. Ngakho, ebizwa nangokuthi iphampu ye-hydrodynamic, njengamaphampu e-jet, i-chestnut yamanzi, njll.
Imingcele eyisisekelo yezakhiwo eziyinhloko zephampu yegravel inokulandelayo:
1, ukugeleza kwe-Q
Ukugeleza inani lephampu yetshe eliwuketshezi ekulethweni kwesikhathi kweyunithi (ivolumu noma ikhwalithi).
Ukugeleza kwevolumu no-Q kusho, iyunithi ithi: m3/s, m3/h, l/s njll.
Ukugeleza kwenqwaba nge-Qm uthe, iyunithi ithi: t/h, kg/s.
Ubudlelwano phakathi kokugeleza kwesisindo nokugeleza kwevolumu:
Qm= ρ Q
Kufomula ρ — ukuminyana koketshezi (kg/m3, t/m3), amanzi okushisa avamile P =1000kg/m3.
2, inhloko ka-H
Inhloko yiyunithi yesisindo sephampu yetshe eliwuketshezi empompayo ephuma empompini yegravel (inlet flange gravel pump) ukuya kugravel lapho kuphuma khona iphampu (pump outlet flange gravel) amandla akhuphukayo. Amandla asebenzayo awuketshezi lwaseNewtonian olutholwe ngephampu yegravel. Iyunithi ithi N? m/N=m, ubude bekholomu ewuketshezi yepompo yokumpompa uketshezi, imikhuba, ebizwa ngokuthi i-M.
3, isivinini n
Isivinini isivinini seyunithi yesikhathi sephampu yegravel shaft, eboniswa uphawu n, iyunithi engu-r/min.
4, NPSH NPSH
I-NPSH ibizwa nangokuthi i-net positive suction head, iboniswa ikakhulukazi amapharamitha wokusebenza kwe-cavitation. I-NPSH ekusetshenzisweni kwasekhaya Δ H.
kg/m3）
5, amandla nokusebenza kahleIsisekelo sokukhetha sephampu ye-slurry
Amandla epompo ye-Gravel ngokuvamile abhekisela emandleni okufakwayo, okuyisisusa sokuqala safika amandla e-gravel futha shaft, ngakho-ke kubizwa nangokuthi amandla e-shaft, amelwe ngu-P;
Iphampu yegravel yamandla esebenzayo ibizwa nangokuthi amandla okukhiphayo, amelwe yi-Pe . Iyunithi yamandla esebenzayo yesikhathi kusukela ekulethweni kwepompo yegravel ephuma oketshezini olukupompo yetshe.
Ngenxa yokuthi i-lift iwuketshezi olusebenzayo lwephampu yegravel yamandla ephuma empompini yetshe, ngakho-ke ikhanda kanye nesilinganiso sokugeleza kwenqwaba nokusheshisa amandla adonsela phansi, iyiyunithi yesikhathi evela oketshezini oluphumayo lwephampu yegravel etholwe amandla asebenzayo - okungukuthi impompo yamatshe amandla:
Pe= ρ gQH (W) = i-gamma QH (W) ifomula ρ ukuminyana — uketshezi lwephampu yegravel (kg/m3);
I-gamma eqinile - uketshezi lwepompo yegravel (N/m3);
Q - ukugeleza kwephampu yetshe (m3/s);
H - ikhanda lepompo legravel (m);
G — ukusheshisa amandla adonsela phansi (m/s2).
Amandla we-Shaft P kanye namandla we-Pe wokulahlekelwa kwamandla wephampu yegravel, usayizi wesilinganiso sepompo yegravel ukusebenza kahle. Ukusebenza kwephampu yegravel njengamandla asebenzayo nesilinganiso samandla we-shaft, kusetshenziswa u-η.
Isikhathi sokuthumela: Jul-13-2021