Intangiriro
Mu nganda nyinshi, pompe ya centrifugal ikoreshwa mugutwara amazi ya viscous.Kubera iyo mpamvu, dukunze guhura nibibazo bikurikira: ni bangahe ubwiza ntarengwa pompe ya centrifugal ishobora gukemura;Nibihe byibura byibuze bigomba gukosorwa kugirango imikorere ya pompe ya centrifugal.Ibi birimo ubunini bwa pompe (pompe itemba), umuvuduko wihariye (munsi yumuvuduko wihariye, niko gutakaza disiki ya disiki), gusaba (ibisabwa na progaramu ya sisitemu), ubukungu, kubungabunga, nibindi.
Iyi ngingo izerekana mu buryo burambuye ingaruka ziterwa nubukonje ku mikorere ya pompe ya centrifugal, kugena coefficient de coiffe de la viscose, hamwe nibibazo bikeneye kwitabwaho mubikorwa bya injeniyeri ifatika hamwe nibipimo bifatika hamwe nuburambe mubikorwa byubuhanga, kugirango bikoreshwe gusa.
1. Ubukonje ntarengwa pompe ya centrifugal irashobora gukora
Mu bihugu bimwe na bimwe byerekeranye n’amahanga, igipimo ntarengwa cyo kwipimisha pompe ya centrifugal ishobora gukora yashyizweho nka 3000 ~ 3300cSt (centisea, ihwanye na mm ² / s).Kuri iki kibazo, CE Petersen yari afite impapuro za tekiniki mbere (zasohowe mu nama y’ishyirahamwe ry’ingufu za pasifika muri Nzeri 1982) maze atanga igitekerezo kivuga ko ubwiza bwinshi pompe ya centrifugal ishobora gukora ishobora kubarwa nubunini bw’isoko rya pompe nozzle, nkuko bigaragara muri Formula (1):
Vmax = 300 (D-1)
Aho, Vm ninziza yemewe ya kinematike ya SSU (Saybolt kwisi yose viscosity) ya pompe;D ni diameter ya pump outlet nozzle (santimetero).
Mubikorwa byubuhanga bufatika, iyi formula irashobora gukoreshwa nkitegeko ryerekanwa.Guan Xingfan's Modern Pump Theory and Design ivuga ko: muri rusange, pompe ya vane ikwiranye nogutanga ubukonje butarenze 150cSt, ariko kuri pompe ya centrifugal hamwe na NPSHR munsi ya NSHA, irashobora gukoreshwa mubwiza bwa 500 ~ 600cSt;Iyo viscosity irenze 650cSt, imikorere ya pompe ya centrifugal izagabanuka cyane kandi ntibikwiriye gukoreshwa.Nyamara, kubera ko pompe ya centrifugal ikomeza kandi ikanagereranywa ugereranije na pompe ya volumetric, kandi ntigikeneye valve yumutekano kandi amabwiriza yo gutembera aroroshye, birasanzwe kandi gukoresha pompe ya centrifugal mumasoko yimiti aho ubwiza bugera kuri 1000cSt.Ubukungu bukoreshwa muburyo bwa pompe ya centrifugal mubusanzwe bugarukira kuri 500ct, ahanini biterwa nubunini nogukoresha pompe.
2. Ingaruka yubusa kumikorere ya pompe ya centrifugal
Gutakaza umuvuduko, guterana kwimbere hamwe no gutakaza imbere mumashanyarazi no kuyobora vane / volute itembera ya pompe ya centrifugal ahanini biterwa nubwiza bwamazi yavomwe.Kubwibyo, iyo kuvoma amazi afite ubukonje bwinshi, imikorere yagenwe namazi izatakaza imbaraga zayo Ubukonje bwikigereranyo bugira ingaruka zikomeye kumikorere ya pompe ya centrifugal.Ugereranije n’amazi, hejuru yubukonje bwamazi, niko gutemba no gutakaza umutwe wa pompe yatanzwe kumuvuduko runaka.Kubwibyo, uburyo bwiza bwo gukora pompe buzagenda bugana kumurongo wo hasi, umuvuduko numutwe bizagabanuka, gukoresha ingufu biziyongera, kandi imikorere izagabanuka.Umubare munini wubuvanganzo bwo mu gihugu ndetse n’amahanga hamwe nuburambe hamwe nuburambe bwubuhanga bwubuhanga bwerekana ko ubukonje butagira ingaruka nke kumutwe kuri pompe.
3. Kumenya coefficient ikosora viscosity
Iyo ibishishwa birenze 20cSt, ingaruka zo kwiyegeranya kumikorere ya pompe iragaragara.Kubwibyo, mubikorwa byubwubatsi bifatika, iyo viscosity igeze kuri 20cSt, imikorere ya pompe ya centrifugal igomba gukosorwa.Ariko, iyo viscosity iri murwego rwa 5 ~ 20 cSt, imikorere yayo nimbaraga za moteri zigomba kugenzurwa.
Iyo kuvoma ibicu byijimye, birakenewe guhindura umurongo uranga mugihe cyo kuvoma amazi.
Kugeza ubu, formulaire, imbonerahamwe hamwe nintambwe zo gukosora byemejwe n’ibipimo by’imbere mu gihugu ndetse n’amahanga (nka GB / Z 32458 [2], ISO / TR 17766 [3], n’ibindi) ku mazi y’amazi afite ahanini biva mu bipimo bya Hydraulic y'Abanyamerika. Ikigo.Iyo imikorere ya pompe itanga uburyo bizwi ko ari amazi, Ikigo cy’Abanyamerika Hydraulic Institute ANSI / HI9.6.7-2015 [4] gitanga intambwe zirambuye zo gukosora hamwe nuburyo bwo kubara.
4. Uburambe bwo gusaba ubuhanga
Kuva iterambere rya pompe ya centrifugal, ababanjirije inganda za pompe bavuze muri make uburyo butandukanye bwo guhindura imikorere ya pompe ya centrifugal kuva mumazi kugera mubitangazamakuru byijimye, buri kimwe gifite ibyiza nibibi:
4.1 Icyitegererezo cya AJStepanoff
4.2 Uburyo bwa Paciga
4.3 Ikigo cya Hydraulic Institute
4.4 Ubudage uburyo bwa KSB
5.Ibikorwa
5.1Itangazamakuru rishobora gukoreshwa
Imbonerahamwe yo guhindura no kubara ikoreshwa gusa mumazi ya viscous viscous fluid, bakunze kwita amavuta ya Newtonian (nk'amavuta yo gusiga amavuta), ariko ntabwo ari mumazi atari Newtonian (nk'amazi arimo fibre, cream, pulp, amazi yamakara avanze, nibindi, nibindi. .)
5.2
Gusoma ntabwo ari ingirakamaro.
Kugeza ubu, formulaire yo gukosora hamwe nimbonerahamwe mu gihugu no hanze yacyo ni incamake yamakuru afatika, azagabanywa nibizamini.Kubwibyo, mubikorwa byubwubatsi bifatika, hagomba kwitonderwa byumwihariko: formulaire yo gukosora cyangwa imbonerahamwe bigomba gukoreshwa muburyo butandukanye.
5.3 Ubwoko bwa pompe ikoreshwa
Imiterere yahinduwe hamwe nimbonerahamwe ikoreshwa gusa kuri pompe ya centrifugal ifite igishushanyo mbonera cya hydraulic gisanzwe, gufungura cyangwa gufunga ibyuma, no gukorera hafi yuburyo bwiza (aho kuba kumpera yanyuma yumurongo wa pompe).Amapompe yabugenewe kubwamazi ya viscous cyangwa heterogeneous fluid ntashobora gukoresha iyi formulaire nimbonerahamwe.
5.4 Ikoreshwa ryumutekano wa cavitation
Iyo kuvoma amazi afite ubukonje bwinshi, NPSHA na NPSH3 birasabwa kugira intera ihagije yumutekano wa cavitation, ibyo bikaba birenze ibyo byavuzwe mubipimo bimwe na bimwe (nka ANSI / HI 9.6.1-2012 [7]).
5.5 Abandi
1) Ingaruka yubusembwa kumikorere ya pompe ya centrifugal iragoye kubarwa na formula yukuri cyangwa kugenzurwa nimbonerahamwe, kandi irashobora guhindurwa gusa numurongo wabonetse mubizamini.Kubwibyo, mubikorwa byubwubatsi bifatika, mugihe uhitamo ibikoresho byo gutwara (hamwe nimbaraga), bigomba gutekereza kubika umutekano uhagije.
) (nkimbaraga za pompe ya pompe) hamwe no guhitamo ibinyabiziga no guhuza bigomba kuzirikana ingaruka za torque iterwa no kwiyongera kwijimye.Muri icyo gihe, hagomba kumenyekana ko:
① Kugirango ugabanye ingingo zisohoka (impanuka zishobora kubaho), pompe imwe ya kantileveri izakoreshwa uko bishoboka kose;
She Igikonoshwa cya pompe kigomba kuba gifite ikoti ryokwirinda cyangwa igikoresho cyo gushakisha ubushyuhe kugirango birinde gukomera hagati mugihe gito cyo guhagarika;
③ Niba igihe cyo guhagarika ari kirekire, uburyo bwo mugikonoshwa buzasiba kandi bugasukurwa;
④ Kugirango wirinde ko pompe itagora kuyisenya bitewe no gukomera kwicyuma giciriritse ku bushyuhe busanzwe, ibifunga kumazu ya pompe bigomba kurekurwa buhoro mbere yuko ubushyuhe buciriritse butamanuka kubushyuhe busanzwe (witondere kurinda abakozi kugirango wirinde gutwika ), kugirango umubiri wa pompe hamwe nigipfukisho cya pompe gishobora gutandukana buhoro.
3) Pompe ifite umuvuduko mwinshi ugomba gutoranywa uko bishoboka kwose kugirango itware amazi yijimye, kugirango bigabanye ingaruka zamazi yimitsi kumikorere yayo no kunoza imikorere ya pompe viscous.
6. Umwanzuro
Ubukonje bwikigereranyo bugira uruhare runini mumikorere ya pompe ya centrifugal.Ingaruka zijimye ku mikorere ya pompe ya centrifugal iragoye kubarwa na formulaire neza cyangwa kugenzurwa nimbonerahamwe, bityo rero uburyo bukwiye bugomba gutoranywa kugirango bukosore imikorere ya pompe.
Gusa iyo ubwiza nyabwo bwibikoresho byavomwe bizwi, birashobora gutoranywa neza kugirango wirinde ibibazo byinshi kurubuga byatewe n itandukaniro rinini riri hagati yubusembwa bwatanzwe nubwiza nyabwo.
Igihe cyo kohereza: Ukuboza-27-2022