Categories Of Generating Set Kukuvadza

Kudengenyeka kwehydro-jenareta seti kwakasiyana neiyo yemagetsi emagetsi emagetsi kusvika pamwero wakati.Unit vibration phenomenon iri pachena, asi iyo vibration sosi inowanzovanzwa.Pamusoro pekudengenyeka kunokonzerwa neinotenderera kana yakagadziriswa chikamu chemuchina pachawo, pesvedzero yesimba remagetsi uye mechanical remagineti uye kuyerera kwemhepo kunobata chikamu chekufashukira cheturbine pane vibrate ye system uye zvikamu zvayo zvinofanirwa kutariswa. .Pane zvikonzero zvakawanda zvekuzunguza kwe hydro-jenareta set, uye akawanda mavibration masosi anowanzo kuvepo panguva imwe chete.Zvinowanzo davirwa kuti simba rekupindira rinokonzera unit vibration rinonyanya kubva kune hydraulic, mechanical uye magetsi maficha, ayo anodyidzana uye anowanzo rukana pamwechete kuti aumbe kwakabatana vibration.

General vibration ye hydropower generating unit haizokonzere kukuvadza kune vashandi, asi kana vibration ichipfuura zvinotenderwa kukosha, kunyanya kwenguva refu vibration uye resonance, simba rekupa simba, hupenyu hwesevhisi yeyuniti, kuita kwemidziyo yekubatsira uye chiridzwa, hwaro hweyuniti uye zvivakwa zvakatenderedza, uye kunyangwe zvese zvinounza kukuvadza kwakakomba kune yakachengeteka uye yehupfumi kushanda kwehydropower station.

Kugadzira kukuvadza kweseti kunogona kukamurwa muzvikamu zvinotevera:

Inotungamira mukuumbwa uye kuwedzera kwekuneta kukuvadza nzvimbo pakati pesimbi uye weld, zvichitungamira mukutsemuka, kunyangwe kukuvara kwekutyoka uye zvimedu.

Kusunungura zvimwe zvigadziriso zveyuniti hazvizongokonzeresa kuputika kwezvisungo ivo pachavo, asi zvakare kunowedzera kudengenyeka kwezvikamu zvinobatanidza uye kukurumidza kukanganisa kwavo.

Iyo dhigirii yekupfekana kwezvikamu zvinotenderera zvechikamu chinomhanyisa.Big shaft inozunguza zvine chisimba, shaft uye tembiricha yekubereka inokwira, inotakura kurasikirwa nekupisa;Jenareta rotor vibration yakakura kwazvo, wedzera dhigirii rekutsvedza mhete uye bhurasho, wedzera tembiricha, kupisa gwenzi rinotakura, wedzera spark yebhurashi.

Iyo vortex pulsating pressure yakaumbwa mupombi ichaita kuti overflow system iite oscillate, kubuda kweunit swing, uye mudhuri wepipepipe kutsemuka.Muzviitiko zvakakomba, iyo yese tailpipe sevhisi inogona kukuvara.

Migumisiro ye turbine resonance yemvura yakanyanyisa.Semuenzaniso, resonance pakati pemidziyo yeyuniti uye chirimwa inogona kukuvadza chirimwa chose uye chirimwa kune akasiyana madhigirii.

Hydraulic vibration ndiko kudedera kunokonzerwa nekukanganiswa kweiyo hydrodynamic pressure ye hydraulic part of the turbine, iyo inonzi hydraulic vibration.Izvo zvinokonzerwa ne hydraulic zvinokonzera kuzununguka kunyanya zvinosanganisira: kusagadzikana kwe hydraulic kunokonzerwa ne-low-frequency vortex band ye tailpipe, karman vortex system, blade vortex, kusagadzikana mune shanduko yekuchinja, hydraulic imbalance, cavity cavitation, clearance jet (axial flow turbine) zvichingoenda zvakadaro.

Iyo yakaderera frequency vortex zone mupombi imhando yekusadzikama kuyerera kwepombi yemuswe weiyo turbine yeFrancis uye axial distance turbine pasi pemutoro usina kukwana.Kana iyo turbine iri kushanda pasi pe-off-design condition, iyo pressure pulsation inowanzoitika mu tailpipe nekuda kwesimba rekutenderera kwemvura kuyerera, vortex kudurura uye cavitation pamumhanyi.Kunyanya mushure mekubuda kwebhendi guru remhepo mumuswe, bhandi revortex rinotenderera mupombi pane imwe nguva inenge yakatarwa, zvichiita kuti pasi-frequency pressure pulsation yekuyerera kwemvura.Kana kuyerera kwemvura kuchiitika muchubhu, kudzvanywa kwemhepo kunokonzeresa kuzunguzika kwemuswe pombi madziro, mumhanyi, nzira yemvura inotungamira, volute uye kumanikidza pombi.

Matanho ekudzivirira uye ekurapa:

Optimize hydraulic design.Anegative Angle runner's airfoil, inonzwisisika dhizaini yeoutlet circulation kugovera mutemo weblade, yakakodzera korona uye discharge koni, uye mumhanyi ane anobatsira mablades anogona kutariswa kune yakakwirira musoro yakasanganiswa kuyerera mumhanyi.

Ramba kure nenzvimbo yebasa rekuzunguza.Shandura kuyerera kwemvura uye kutenderera kwekuyerera kwemvura, sekurebesa koni yekuburitsa, kuwedzera iyo refu liner koni chikamu, kuwedzera muswe pombi koni Angle, kuwedzera baffle ndiro uye baffle ndiro, kudzora vortex bhanhire eccentricity. , nezvimwewo.

Munguva yekushanda kweyuniti, kupihwa kwemhepo kwakaringana kunoitwa munzvimbo yazvino eddy, kazhinji mhepo yemhepo, kana kumanikidzwa kwemhepo kana zvichidikanwa.

Aya mapoka ari pamusoro akakamurwa neDingbo Power, kana uine chero mubvunzo nezve dhiziri jenareta ,pls taura neDingbo Power ine zvigadzirwa zvinofukidza Cummins, Perkins, Volvo, Yuchai, Shangchai, Deutz, Ricardo , MTU, Weichai etc.