1. The Mysterious NPSHA

Chinhu chinonyanya kukosha ndeye NPSHA yepombi yekudhonza kaviri. Kana mushandisi asinganzwisisi nemazvo NPSHA, pombi ichaita cavitate, zvichikonzera kukuvara kwakanyanya uye kuderera.

2. Best Efficiency Point

Kumhanyisa pombi kubva paBest Efficiency Point (BEP) ndiro dambudziko rechipiri rinowanzoitika rinokanganisa pombi dzekuyamwa kaviri. Muzvikumbiro zvakawanda, hapana chinogona kuitwa nezvemamiriro ezvinhu nekuda kwemamiriro ari kunze kwesimba remuridzi. Asi pane nguva dzose mumwe munhu, kana kuti nguva yakarurama, kufunga kuchinja chimwe chinhu muhurongwa kubvumira pombi yecentrifugal kushanda munzvimbo iyo yakagadzirirwa kushanda. Sarudzo dzinobatsira dzinosanganisira kuchinjika kumhanya mashandiro, kugadzirisa impeller, kuisa saizi yakasiyana pombi kana imwe pombi modhi, nezvimwe.

3. Pipeline Strain: Silent Pump Killer

Zvinoita sekuti ductwork kazhinji haina kugadzirwa, kuisirwa kana kusungirirwa nemazvo, uye kuwedzera kwemafuta uye kuputika hakutariswe. Pipe strain ndiyo inonyanya kufungidzira chikonzero chekubereka uye matambudziko ekusimbisa. Semuenzaniso: mushure mekunge taraira injiniya wepanzvimbo kuti abvise mabhaudhi epombi yepombi, pombi ye1.5-tani yakasimudzwa nepombi makumi emamirimita, iri muenzaniso wekunetsa kwepombi.

Imwe nzira yekutarisa ndeyekuisa dial chiratidzo pakubatanidza mune yakachinjika uye yakatwasuka ndege uye wozosunungura pombi yekukweva kana yekuburitsa. Kana iyo dial chiratidzo ichiratidza kufamba kweanopfuura 0.05 mm, pombi inomanikidzwa zvakanyanya. Dzokorora matanho ari pamusoro kune imwe flange.

4. Tanga Kugadzirira

Mapombi anokweva kaviri emhando ipi neipi, kunze kweyepasi-bhiza yakasimba-yakabatana, skid-yakaiswa pombi mayuniti, haawanzosvika akagadzirira kutanga panzvimbo yekupedzisira. Iyo pombi haisi "plug uye tamba" uye mushandisi wekupedzisira anofanira kuwedzera mafuta kune inotakura imba, isa rotor uye impeller clearance, isa chisimbiso chemuchina, uye ita cheki yekutenderera padhiraivha isati yaisa coupling.

5. Kururamisa

Kurongeka kwekutyaira kune pombi kwakakosha. Hazvina mhosva kuti pombi yakarongedzerwa sei pafekitari yemugadziri, kurongeka kunogona kurasikirwa panguva iyo pombi inotumirwa. Kana pombi iri pakati penzvimbo yakaiswa, inogona kurasikirwa kana ichibatanidza mapaipi.

6. Mafuta Level uye Utsanana

Mafuta akawanda kazhinji haasi nani. Mumabhora mabearings ane splash lubrication systems, yakaringana mwero weoiri ndipo apo mafuta anobata kuzasi chaiko kwebhora repasi. Kuwedzera mamwe mafuta kunongowedzera kukakavara uye kupisa. Rangarira izvi: Chikonzero chikuru chekutadza kubereka kusvibiswa kwemafuta.

7. Dry Pump Operation

Kunyudza (kunyudzwa kuri nyore) kunotsanangurwa sechinhambwe chinoyerwa chakatwasuka kubva pamusoro pemvura kusvika pakati pechiteshi chekukweva. Chinonyanya kukosha kunyura kunodiwa, kunozivikanwawo sekushomeka kana kwakakosha kunyura (SC).

SC chinhambwe chakatwasuka kubva pane chinoyerera kusvika kune yakapetwa kaviri yekusveta pombi inlet inodiwa kudzivirira kutenderera kwemvura uye kutenderera kwemvura. Turbulence inogona kuunza mweya usingadiwe uye mamwe magasi, ayo anogona kukonzera kukuvara kwepombi uye kuderedza kushanda kwepombi. Mapombi eCentrifugal haasi ma compressor uye kuita kunogona kukanganiswa zvakanyanya kana uchipomba biphasic uye/kana multiphase fluid (gasi nemhepo kupinda mumvura).

8. Nzwisisa Kumanikidzwa kweVacuum

Vacuum inyaya inokonzera kuvhiringika. Paunenge uchiverenga NPSHA, kunyatsonzwisisa kwechinyorwa kunonyanya kukosha. Rangarira, kunyangwe mune vacuum, pane imwe huwandu hwe (yakazara) kudzvanywa - kunyangwe idiki sei. Hakusi kuzara kwemuchadenga kwaunowanzo ziva uchishanda padanho regungwa.

Semuenzaniso, panguva yekuverenga kweNPSHA inosanganisira vapor condenser, unogona kusangana nekuvharwa kwe28.42 inches ye mercury. Kunyangwe neiyo yakakwira vacuum, kuchine kumanikidzwa kwakazara kwe 1.5 inches yemercury mumudziyo. Dzvinyiriro ye 1.5 inches ye mercury inoturikira kumusoro wakakwana we 1.71 tsoka.

Mhemberero: Iyo yakakwana vacuum ingangoita 29.92 inches yemekiyuri.

9. Kupfeka Ring uye Impeller Clearance

Pombi kupfeka. Kana mapeji akapfeka uye akazaruka, anogona kuve nemhedzisiro yakaipa papombi yekudhonza kaviri (vibration uye masimba asina kuenzana). kazhinji:

Kushanda kwepombi kunodzikisira poindi imwe pachuru che inch (0.001) yekupfeka kwemvumo ye0.005 kusvika 0.010 inches (kubva pakugadzika kwepakutanga).

Kubudirira kunotanga kudzikira zvakanyanya mushure mekunge clearance yadzikira kusvika pa 0.020 kusvika 0.030 inches kubva pane yekutanga clearance.

Munzvimbo dzekusashanda kwakasimba, pombi inongoshungurudza mvura, inokuvadza mabhengi uye zvisimbiso mukuita.

10. Suction Side Design

Rutivi rwekusveta ndicho chikamu chakakosha chepombi. Fluids haina tensile properties/simba. Naizvozvo, iyo pombi impeller haigone kuwedzera nekukwevera mvura mupombi. Iyo yekusveta system inofanirwa kupa simba rekuendesa mvura kune pombi. Simba racho rinogona kubva kugiravhiti uye koramu yakamira yemvura iri pamusoro pepombi, mudziyo wakamanikidzwa/mudziyo (kana kunyange imwe pombi) kana kungobva kumhepo yemuchadenga.

Matambudziko mazhinji epombi anoitika padivi rekusveta pombi. Funga nezvehurongwa hwese sematanho matatu akapatsanurwa: iyo yekudhonza system, iyo pombi pachayo, uye yekuburitsa divi rehurongwa. Kana rutivi rwekusveta rwegadziriro ichipa simba rakakwana remvura kune pombi, pombi inobata matambudziko mazhinji anoitika padivi rekubuda regadziriro kana yakasarudzwa nemazvo.

11. Zvakaitika uye Kudzidziswa

Vanhu vari pamusoro pebasa ripi neripi vanogara vachiedza kuvandudza ruzivo rwavo. Kana iwe uchiziva nzira yekuzadzisa zvinangwa zvako, pombi yako inomhanya zvakanyanya uye nekuvimbika.