The horizontal split kesi pombi isarudzo yakakurumbira muzvirimwa zvakawanda nekuti zviri nyore, zvinovimbika, uye zvisingaremi uye zvakasungirirana mukugadzira. Mumakumi emakore achangopfuura, kushandiswa kwe split case mapombi akawedzera mune zvakawanda zvikumbiro, senge process application, nekuda kwezvikonzero zvina:

1. Kufambira mberi mune centrifugal pombi sealing tekinoroji

2. Ruzivo rwechizvino-zvino uye kuenzanisira kwemagetsi mechanics uye kutenderera kwemagetsi

3. Nzira dzekugadzira dzepamusoro dzekugadzira zvikamu zvinotenderera zvakanyatsonaka uye magungano akaoma pamutengo unonzwisisika

4.Kugona kurerutsa kutonga kuburikidza nekushandiswa kwechizvino-zvino kudzora tekinoroji, kunyanya yemazuva ano madhiraivha ekumhanyisa madhiraivha (VSDs)

Panyaya yekuvimbika, iyo pombi curve inofanirwa kutariswa zvakanyanya zvisinei nemhando yekushandisa. Munguva yekusarudza, kuronga nzvimbo yekushanda kwechikumbiro kunogona kureva musiyano pakati pekuchengetedza mari uye kurasikirwa nemari.

Best Efficiency Point

Iyo yakanyanya kunaka poindi (BEP) ndiyo poindi iyo horizontal split case pombi yakanyanya kugadzikana. Kana pombi ikashandiswa kure neBEP point, haizongotungamira mukuwedzera kwemitoro isina kuenzana - mitoro inowanzokwira panzvimbo yepombi yakafa, asiwo (pamusoro penguva refu yekushanda) inoderedza kuvimbika kwepombi uye hupenyu hwezvikamu zvayo.

Magadzirirwo epombi anowanzo gadzirisa huwandu hwayo hwekushanda, asi pombi inofanirwa kushandiswa mukati me80% kusvika 109% yeBEP. Rudzi urwu rwakanaka asi haruite, uye vazhinji vashandisi vanofanirwa kuona yakakwana yekushanda siyana vasati vasarudza pombi.

Iyo inodiwa net positive suction head pressure (NPSHR) inowanzo dzikamisa huwandu hwekushanda hwepombi maererano neBEP. Paunenge uchishanda zvakanaka pamusoro pekuyerera kweBEP, kudonha kwekumanikidza mundima yekusveta uye pombi inodonha zvakanyanya pazasi peNPSHR. Uku kudonha kwekumanikidza kunogona kukonzera cavitation uye kukuvadza kune zvikamu zvepombi.

Sezvo zvikamu zvepombi zvinopfeka uye zera, zvibvumirano zvitsva zvinokura. Mvura inopomba inotanga kutenderera kakawanda (mukati mekudzoka shure - pombi salon note) kupfuura apo pombi yaive itsva. Recirculation inogona kukanganisa kukanganisa kwepombi.

Vashandi vanofanira kutarisa pombi yekuita curve yehuwandu hwekushanda. Mapombi anoshanda muakavharika loop kana kudzoreredza sevhisi (ane bypass masisitimu - pombi salon note) inofanirwa kushandiswa padyo neBEP kana mukati me5% kusvika 10% kuruboshwe rweBEP. Mune ruzivo rwangu, akavharwa loop masisitimu anobhadhara zvishoma kutarisa kune pombi performance curve.

Muchokwadi, vamwe vashandisi havatarise mamwe mapoinzi ekushandisa kana kudzoreredza kuyerera kweyero papombi curve. Kudzokorodza sevhisi kuyerera kunogona kusiyanisa zvakanyanya, ndosaka vashandisi vachifanirwa kuwana uye kuongorora ese anogona kushanda mapoinzi papombi curve.

Yakanyanya Kushanda Points

Mune sevhisi yekufambisa yakawanda, iyo yakachinjika kupatsanurwa pombi yemhosva inotamisa mvura kubva mugaba kana tangi ine mazinga akasiyana emvura panzvimbo yekusveta uye yekuburitsa. Pombi inopomba mvura kunze pachiteshi chekukweva uye inozadza mudziyo kana tangi pachiteshi chekuburitsa. Mamwe masevhisi ekutamisa akawanda anoda kushandiswa kwemavharuvhu ekudzora, ayo anogona kushandura zvakanyanya kusiyanisa kudzvinyirira.

Musoro wepombi unogara uchichinja, asi chiyero chekuchinja chinogona kunge chakakwira kana chakaderera.

Kune maviri akanyanyisa mapoinzi ekushandisa muhuwandu hwekufambisa sevhisi, imwe kumusoro wepamusoro uye imwe kumusoro wakaderera. Vamwe vashandisi vanokanganisa kuenzanisa BEP yepombi kunzvimbo yekushandisa iri kumusoro wepamusoro uye vokanganwa nezve zvimwe zvinodiwa nemusoro.

Iyo pombi yakasarudzwa ichashanda kurudyi kweBEP, ichipa kusavimbika uye kusanyanya kushanda. Pamusoro pezvo, nekuti pombi yakakura kuti ishande kumusoro wepamusoro padhuze neBEP, pombi yacho yakakura kupfuura yainofanirwa kunge iri.

Kusarudzika kwepombi kusarudzwa panzvimbo yakaderera yekushanda kwemusoro kuchaita kuti iwedzere kushandiswa kwesimba, kuderera kwesimba, kutekenyedza kwakawanda, chisimbiso chipfupi uye kubereka hupenyu, uye kuderera kwekuvimbika. Zvose izvi zvinhu zvinogona kuwedzera zvakanyanya mari yekutanga uye yekushandisa, kusanganisira nguva zhinji isina kurongeka.

Kutsvaga nzvimbo yepakati

Kusarudzwa kwepombi yepombi yakachinjika yakachinjika kunoenderana nekutsvaga nzvimbo yebasa kumusoro wepamusoro kuruboshwe rweBEP kana kumusoro wepasi kurudyi rweBEP.

Iyo inokonzeresa pombi curve inofanirwa kusanganisira mapoinzi ekushandisa anofunga zvimwe zvinhu zvakaita seNPSHR. Iyo pombi inofanira kushanda pedyo neBEP, inova nzvimbo yepakati pakati pepamusoro uye yakaderera misoro, nguva zhinji.

Kazhinji, mapoinzi ese ebasa anofanirwa kuzivikanwa uye kushanda kwepombi kunoongororwa kune ese anobvira ebasa mapoinzi.

Chinonyanya kukoshesa mamiriro ekushanda kwepombi, uye kana kushanda kwepombi kuchideredzwa zvishoma, pombi yekushanda kwepombi papombi yepombi inofungidzirwa. Kune mamwe maapplication epombi, akadai sevhisi yekufambisa sevhisi, pane musiyano muhombe pakati pepamusoro uye pasi pemusoro mapoinzi, uye inoshanduka yekumhanya centrifugal pu.