Nekuti kushandiswa kweslurry pombi kwakakura kwazvo, chimiro chemvura inotamiswa dzimwe nguva zvakare mutsauko mukuru, mamiriro akasiyana ebasa ane zvakasiyana zvinodiwa pakuyerera kwepombi uye kudzvanywa, kuitira kuti isangane nezvinodiwa zvepombi kuita munzvimbo dzakasiyana siyana. , kune marudzi akawanda epombi, kazhinji inogona kuiswa maererano nenheyo yekushanda yepombi, uye kushandiswa kwayo kunogona kupa kusimudza. Zvinoenderana neanoshanda musimboti wepombi inogona kukamurwa kuita yakanaka displacement pombi, vane pombi uye mamwe mhando pombi mapoka matatu
Positive displacement pombi dzinovimba nekuchinja kwevhoriyamu nguva nenguva inogadzirwa vhoriyamu kusveta uye kuburitsa mvura, kana vhoriyamu yebasa ichiwedzera, pombi yekudhonza mvura; kana ichiderera, pombi inobudisa mvura. Kinematic hunhu zvinoenderana nebasa rerudzi urwu Li akakamurwa kuita:
1. Kudzorera kushandiswa kwepombi yekudzorera kufamba. Mhando yepombi iyi pombi yepiston, piston, diaphragm chestnut uye zvichingodaro.
2.Mapombi eRotary anoshanda masangano ekugadzirisa axis kutenderera. Iyi mhando yepombi igiya pombi, screw pump,gravel pombi industrysliding vane pombi.
Vane chestnut vanovimba imwe kana akati wandei akakwira-kumhanya kutenderera kweiyo impeller kusimudzira kuyerera kwemvura, kuwana kufambisa kwemvura. Zvinoenderana neiyo mvura iri munzira yekuyerera yepombi vane pombi inopatsanurwa kuita:
1.Pump fluid inoyerera zvakanyanya kuburikidza nepombi, simba rinosunda kuyerera kwemvura kana simba recentrifugal rinogadzirwa nekutenderera kweimpeller.
(2) Axial fluid inoyerera axially kuburikidza nepombi, simba rinosunda mvura inoyerera impeller axial thrust inogadzirwa kana kutenderera.
3. Kuyerera kwepombi yepombi mupombi inoyerera ichienda kune imwe kona yepombi, simba rinosunda kuyerera kwemvura kana simba repakati rinogadzirwa nekutenderera kwemupumbi uye axial thrust force.
4 - Vortex pombi yemvura mupombi yekuyerera kwevortex yakatwasuka, ichitsamira pane inotenderera inotenderera inosimudzira mavortices anogadzirwa nekufamba kwemvura kusveta uye kubuda mvura.
Mamwe marudzi emapombi ari kunyanya kuvimba neimwe mvura (mvura, gasi) simba kana kinetic simba hydrostatic transmission fluid. Saka, inonziwo hydrodynamic pombi, yakadai sejet pombi, chestnut yemvura, nezvimwewo.
Iwo ekutanga ma paramita eiyo huru zvivakwa zve gravel pombi ine zvinotevera:
1, kuyerera kweQ
Kuyerera ndiko kuwanda kwepombi yegravel yemvura muyuniti nguva yekuburitsa kunze (vhoriyamu kana mhando).
Vhoriyamu inoyerera neQ yakati, iyo unit ndeye: m3/s, m3/h, l/s nezvimwe.
Misa inoyerera neQm yakati, iyo unit ndeye: t/h, kg/s.
Hukama huri pakati pekuyerera kwehuwandu nekuyerera kwevhoriyamu kune:
Qm= ρ Q
Muchimiro ρ - mvura density (kg/m3, t/m3), yakajairika tembiricha mvura P =1000kg/m3.
2, mukuru weH
Musoro uremu hwechikamu chepombi yegravel pombi inotorwa kunze kwenyika kubva pagravel pombi (inlet flange gravel pombi) kusvika pagravel panobuda pombi (pombi outlet flange gravel) energy increment. Simba rinoshanda iNewtonian liquid inowanikwa nepombi yematombo. Iyo unit ndeye N? m/N=m, kureba kwemvura mbiru huruva pombi yekupomba mvura, maitiro, anonzi M.
3, kumhanya n
Kumhanya ndiko kumhanya kwegravel pombi shaft unit yenguva, inotaridzwa nechiratidzo n, chikamu che r/min.
4, NPSH NPSH
NPSH inonziwo mambure akanaka ekuyamwa musoro, inoratidzwa zvakanyanya paramita ye cavitation performance. NPSH mukushandiswa kwemumba Δ H.
kg/m3）;
5, simba uye kushanda zvakanakaSarudzo hwaro hwepombi ine slurry
Gravel pombi simba rinowanzo reva simba rekupinza, inova yekurudziro yepakutanga yakauya gravel pombi shaft simba, saka inonziwo shaft simba, inomiririrwa neP;
Inoshanda simba gravel pombi inonziwo simba rekubuda, rinomiririrwa naPe. Ndiyo simba rinoshanda renguva kubva pa gravel pombi kuburitsa kunze kwemvura mupombi yegravel.
Nekuti iyo yekusimudza ndiyo inoshanda simba giravha pombi inobuda huremu huremu hunowanikwa kubva pa gravel pombi, saka musoro uye kuwanda kwekuyerera uye kukwidziridza kwegiravhiti, chikamu chenguva kubva pamatombo epombi inobuda mvura yakawana simba rinoshanda - kureva giravha pombi kushanda zvakanaka. simba:
Pe= ρ gQH (W) = gamma QH (W) fomula ρ density — mvura yepombi yematombo (kg/m3);
Yakanyanya gamma - gravel pombi mvura (N/m3);
Q - kuyerera kwepombi yematombo (m3 / s);
H - musoro wepombi yematombo (m);
G - kukurumidza kwesimba rinokwevera zvinhu pasi (m/s2).
Shaft simba P uye simba Pe yekurasikirwa kwesimba kwegero pombi, saizi yegravel pombi inoshanda chiyero. Gravel pombi inoshanda sesimba rinoshanda uye shaft simba reshiyo, uchishandisa η.
Nguva yekutumira: Jul-13-2021