Zvinenge zvese zvezvinhu zvinopinda mupombi yehupenyu hwakavimbika hunotarisirwa kusvika kumushandisi wekupedzisira, kunyanya mashandisirwo nekuchengetedzwa kwepombi. Ndezvipi zvinhu zvinogona kudzora mushandisi wekupedzisira kuwedzera hupenyu hwepombi? Zvinhu gumi nenhatu zvinotevera zvinocherechedzwa zvinhu zvakakosha zvekufungisisa pakuwedzera hupenyu hwepombi.

1. Radial Forces

Huwandu hwemaindasitiri hunoratidza kuti chikonzero chikuru chekusarongeka kunonoka kwepombi dzecentrifugal kubereka uye/kana kutadza kwechisimbiso. Bearings uye zvisimbiso ndiwo "canaries mumugodhi wemarasha" - ndiwo zviratidzo zvekutanga zvehutano hwepombi uye inotangira kukundikana mukati mepombi system. Chero ani akamboshanda muindasitiri yepombi kwehurefu hwenguva angangove anoziva kuti yekutanga kuita kwakanakisa ndeyekushandisa pombi kana pedyo neBest Efficiency Point (BEP). PaBEP, pombi yakagadzirirwa kumira mashoma emagetsi emagetsi. Paunenge uchishanda kure neBEP, iyo inoguma simba vector yevose radial forces iri pa 90 ° angle kune rotor uye inoedza kutsausa uye kupeta pombi shaft. Yakakwira radial mauto uye inokonzeresa shaft deflection ndeye mechanika chisimbiso mhondi uye chinhu chinobatsira pakupfupisa kubereka hupenyu. Kana mauto eradial akakura zvakakwana, anogona kukonzera shaft kutsauka kana kukotama. Kana iwe ukamisa pombi uye kuyera iyo shaft runout, hapana chaunowana chakashata nekuti ichi chimiro chine simba, kwete chakamira. Shaft yakabhenda ichimhanya pa3,600 rpm inotsvedza kaviri pabhindauko, saka inokotama ka7,200 paminiti. Iyi yakakwira kutenderera kutenderera kunoita kuti zviome kuti zviso zvechisimbiso zvirambe zvakasangana uye kuchengetedza fluid layer (firimu) inodiwa kuti chisimbiso chishande nemazvo.

2. Kusvibiswa kweLubricant

Pamabheji ebhora, inopfuura 85% yekutakura kukundikana kunokonzerwa nekusvibiswa, iyo inogona kuva guruva uye kunze kwenyika kana mvura. Zvikamu 250 chete pamirioni (ppm) zvemvura zvinogona kuderedza kubereka upenyu nechikamu chechina. Upenyu hwekuzora hwakakosha.

3. Suction Pressure

Zvimwe zvinhu zvakakosha zvinokanganisa kubereka hupenyu zvinosanganisira kusveta, kurongeka kwemutyairi, uye kune imwe nhanho kunetsa kwepombi. Kune ANSI B 73.1 imwe-nhanho yakachinjika overhung process mapombi, simba reaxial rinogadzirwa pa rotor rakananga pachiteshi chekukweva, saka kusvika pamwero wakati uye mukati memimwe miganhu, kuita kwekudhonza kudzvanya kunozodzikisa simba reaxial, nekudaro kuderedza kutakura mitoro. uye kuwedzera hupenyu hweyakadzika zvakanaka vertical turbine pombi.

4. Mutyairi Alignment

Kusarongeka kwepombi nemutyairi kunogona kuremedza radial bearing. Hupenyu hweiyo radial bearing iri exponentially inoenderana nedhigirii rekusarongeka. Semuenzaniso, nekukanganisa kudiki (kukanganisa) kwe 0.060 inches chete, mushandisi wekupedzisira anogona kusangana nematambudziko ekubereka kana kubatanidza mushure memwedzi mitatu kusvika kumishanu yekushanda. Zvisinei, kana kusarongeka kuri 0.001 inches, pombi imwe chete inogona kushanda kwemwedzi inopfuura makumi mapfumbamwe.

5. Pipe Strain

Kuomarara kwepombi kunokonzerwa nekusaenderana nekusveta uye/kana kuburitsa pombi nemapombi flange. Kunyangwe mune yakasimba pombi dhizaini, dhizaini yepombi inogona kuendesa zviri nyore izvi zvinonyanya kunetsa kune mabearings uye anoenderana anotakura imba inokwana. Masimba (strain) anogona kuita kuti kutakura kukwana kuve kunze kwekutenderera uye / kana kusaenderana nemamwe mabheji, zvichiita kuti mitsetse yepakati ive pane ndege dzakasiyana.

6. Fluid Properties

Fluid zvivakwa zvakaita sepH, viscosity, uye chaiyo giravhiti zvinhu zvakakosha. Kana mvura iine acidic kana kuita ngura, kuyerera-kuburikidza nezvikamu zve yakadzika zvakanaka vertical turbine pombi senge pombi yepombi uye impeller inoda kusaita ngura. Izvo zvakaomeswa zviri mukati memvura uye saizi yayo, chimiro, uye abrasiveness zvese zvinhu.

7. Kuwanda Kwekushandisa

Kuwanda kwekushandisa chimwe chinhu chakakosha: Kangani pombi inotanga munguva yakatarwa? Ini pachangu ndakazvionera pombi dzinotanga nekumira masekonzi mashoma ega ega. Muyero wekupfeka pamapombi aya wakakwira zvakanyanya kupfuura kana pombi iri kushanda ichienderera pasi pemamiriro akafanana. Muchiitiko ichi, dhizaini yehurongwa inoda kuchinjwa.

8. Net Positive Suction Head Margin

Iyo yakakura muganho pakati peNet Positive Suction Head Inowanikwa (NPSHA, kana NPSH) uye Net Positive Suction Head Inodiwa (NPSHR, kana NPSH Inodiwa), iyo isingaite yakadzika tsime. vertical turbine pombi will cavitate. Cavitation inokuvadza pombi impeller, uye mhedzisiro inodedera inogona kukanganisa hupenyu hwezvisimbiso nemabhengi.

9. Pombi Speed

Kumhanya panoshanda pombi ndechimwe chinhu chakakosha. Semuenzaniso, pombi inomhanya pa3,550 rpm ichapfeka kane kana kasere nekukurumidza pane imwe inomhanya pa1,750 rpm.

10. Impeller Balance

Mapombi asina kuenzana pamapombi ecantilever kana mamwe madhizaini akatwasuka anogona kukonzera shaft kuzununguka, mamiriro ezvinhu anotsausa shaft, zvakanyanya semasimba eradial apo pombi iri kutiza kubva kuBEP. Radial deflection uye shaft wobble inogona kuitika panguva imwe chete.

11. Kuronga kwepombi uye Inlet Flow Rate

Kumwe kutariswa kwakakosha pakuwedzera hupenyu hwepombi magadzirirwo epombi, kureva kuti mvura "inoiswa" sei mupombi. Semuyenzaniso, gokora riri padivi rendege padivi rekusveta pombi rinenge riine zvinokuvadza zvishoma pane gokora rakachinjika - iyo hydraulic loading yeimpeller yakanyanya kuenzana, uye naizvozvo mabhengi anoremerwa zvakaenzana.

12. Pump Operating Temperature

Tembiricha yekushandisa yepombi, ingave inopisa kana kutonhora, uye kunyanya mwero wekushanduka kwetembiricha, inogona kuve nemhedzisiro yakakura pahupenyu uye kuvimbika kwepombi yakadzika yakadzika yakamira turbine pombi. Kupisa kwekushanda kwepombi kwakakosha zvikuru uye pombi inofanira kugadzirwa kuti isangane nekushisa kwekushanda. Asi chinonyanya kukosha chiyero chekuchinja kwekushisa.

13. Pombi Casing Penetrations

Kunyangwe zvisingawanzo kutariswa, chikonzero chekuti pombi casing inopinda isarudzo kwete chiyero chepombi yeANSI ndechekuti huwandu hwepombi casing yekupinda huchave nemhedzisiro pahupenyu hwepombi, sezvo nzvimbo idzi ndidzo nzvimbo dzekutanga dzekuora uye. stress gradients (inosimuka). Vazhinji vashandisi vekupedzisira vanoda kuti casing idhirwe uye kutepwa kuti idonhe, kupera simba, zviteshi zvezviridzwa. Pese painoboorwa gomba uye nekudzvanywa pagoko, kushushikana kunosiiwa mune izvo, izvo zvinova izvo zvinokonzeresa kutsemuka kwekushushikana uye nzvimbo inotangira ngura.

Zviri pamusoro apa ndezvemushandisi chete. Pamibvunzo chaiyo, ndapota bata CREDO PUMP.