Mhosva Kuongororwa kweCummins 300KVA Generator Fuel Supply System

1.Fault diagnostic of high pressure common rail fuel supply system ye300kva Cummins diesel generator set.

Iwo ma sensors uye ma actuators anoshandiswa mune yakakwira-kumanikidza yakajairika njanji mafuta ekupa system ane hunhu hwehuwandu hukuru, yakanyanya kurongeka uye nekukurumidza mhinduro.Chero bedzi chinhu chimwe chakakanganisika, chichava nekukanganisa kukuru pahurongwa hwese, uye zvinototungamira mukutadza kushanda kwakajairika kana kutanga-kwemidziyo.Matambudziko akatarisana nekukanganisa kuongororwa kwehurongwa zvakare ndiwo akanyanya kuoma.

Nekuda kwekuti chimiro uye kudzora modhi yeyakakwira-kumanikidza yakajairika njanji yekugovera mafuta akasiyana zvakanyanya kubva kune yechinyakare dhiziri jenareta, zvikanganiso muhurongwa zvakare zvakanyanya kuoma.Kazhinji, zvikanganiso zvinogona kugoverwa mumhando dzinotevera.

(1) Kutadza kwemafuta ekugovera system kunokonzerwa nekuderera kwekumanikidza chikamu.

① Pane dambudziko nepombi yekufambisa mafuta.Chiitiko chinokanganisa ndechekuti injini inomira mushure mekudziya, iyo isingaite inomhanya haina kugadzikana uye kukurumidza hakuna simba.Iwe unogona kubatanidza geji yekumanikidza yemafuta munhevedzano pakati petangi remafuta uye dunhu remafuta ekutanga mafuta sefa, tarisa kukosha kwemafuta (kumanikidza kwemafuta kunofanirwa kunge kwakakura kupfuura 3bar panguva yekukurumidza kukurumidza), tongai mamiriro epombi yekufambisa mafuta. , uye kubvisa kukanganisa nekugadzirisa kana kutsiva pombi yekufambisa mafuta.

② Dambudziko remafuta emafuta rinoratidza kuti zvakaoma kutanga kutonhora, izvo zvinonyanya kukonzerwa nemvura yakawandisa musefa kana kukuvadza kune hita, kunyanya munguva yechando.Muchando, mvura iri musefa ye 300kva Cummins jenareta inofanira kubudiswa nguva dzose uye mamiriro ekushanda kweheater inofanira kuongororwa.

(2) Kutadza kwehutsi hwemafuta kunokonzerwa nechikamu chekumanikidza.

Iyo yakanyanya-kudzvanywa chikamu chemafuta ekupa system inoshandisa cam kutyaira pombi plunger yekumusoro-kudzvanywa pombi kumusoro uye pasi kuti ipedze kusveta kwemafuta uye kupomba maitiro.

① Pane dambudziko nepombi yepamusoro-yekumanikidza.Chiitiko chinokanganisa ndechekuti pombi yepamusoro-inomanikidza haina kukwana mafuta ekumanikidza nekuda kwekukuvadzwa kwezvikamu mupombi yepamusoro.Mhosva yepombi yepamusoro-yekumanikidza inogona kutongwa nekuverenga kukanganisa kwekodhi yeyakajairika njanji yekumanikidza sensor uye data flow analysis.

② Pane dambudziko neyakajairwa njanji pressure sensor.Chiitiko chekukanganisa ndechekuti injini inomira mushure mekutanga, uye haigone kutangwa zvakare mushure mekumira.Chikonzero ndechekuti gomba rekuyeresa oiri yeyakajairika njanji yekumanikidza sensor yakavharwa kana sensor yakakuvadzwa, zvichikonzera chiratidzo chisina kujairika cheyakajairika njanji yekumanikidza sensor yakaonekwa neECU, ichimanikidza injini kuvhara.Shandisa multimeter kana oscilloscope kuona inobuda voltage chiratidzo che sensor (yakajairika kukosha ndeye 0.5 ~ 4.5V), kuitira kutonga rudzi urwu rwekukanganisa.

③ Pane dambudziko neyakajairwa njanji inodzikamisa vharafu.Iyo yekukanganisa chiitiko inonetsa kutanga, isina kugadzikana isingaiti kumhanya uye isina simba kukurumidza panguva yekutyaira.Chikonzero ndechekuti kudzvanywa kwemafuta munjanji yakajairika yakakura uye haina kukwana nekuda kwekudonha kweiyo yakajairika njanji inodzikamisa vharafu.Inogona kutongwa nekuongorora kuyerera kwe data yeyakajairika njanji kumanikidza sensor ine detector kana oscilloscope pasi pemamiriro ekumhara.

④ Pane dambudziko nemagetsi jekiseni remafuta.Chiitiko chemhosva ndechekuti zvakaoma kutanga motokari inopisa uye utsi hutema hunobudiswa kubva papombi yekupedza.Chikonzero ndechekuti musanganiswa wakanyanya kupfuma nekuda kwekusagadzikana kwejekiseni kana kudonha kwemafuta emagetsi jekiseni remafuta.Tarisa uye ongorora waveform yazvino yeinjector yemafuta ine oscilloscope kana tester kuti uenderere mberi kutonga kutadza kweinjector yemafuta uye kuitsiva.

3. Kusanzwisisa kwekukanganisa kuongororwa uye kuchengetedza.

Mukuita kwekuona kukanganisa uye kutonga kwepamusoro-voltage common rail system yemagetsi inodzorwa dhiziri jenareta, inzira yakananga yekuverenga zvakananga kodhi yekukanganisa necomputer detector kuti uone kukanganisa.Nokudaro, vashandi vakawanda vanogadzirisa vanoshandisa zvakananga kuverenga kukanganisa kodhi kutonga nzvimbo yemhosva, kana kuedza kubvisa kukanganisa nekutsiva zvikamu uye zvikamu zvinoratidzwa nekodhi yemhosva, Zvisinei, kukanganisa hakugoni kubviswa, nokuti kodhi yemhosva haiiti. zvinoreva kuti zvikamu zvinorehwa mukodhi yemhosva zvechokwadi zvine chikanganiso.Izvi zvinodaro nekuti mamiriro ekukanganisa uye zvikumbaridzo zvakatarwa neECU kune chimwe nechimwe chikamu zvakasiyana, uye kudyidzana pakati pezvikamu zvakasiyana uye zvimwe zvinhu zviripo.Mamwe emakodhi emhosva akachengetwa neECU anogona kuratidza mamiriro chaiwo echikanganiso, asi vamwe havagone.Semuenzaniso, zvimwe zvikanganiso zvinokonzerwa nekukanganisa kwemagetsi, izvo zvinoita kuti chiratidzo che sensor chive chinokanganisa kana kudarika huwandu, uye ECU icharondedzera kukanganisa kwe sensor.Muchokwadi, iyo sensor haisi iyo yekukanganisa point.

Muchidimbu, kodhi yemhosva hairevi kuti panofanira kunge paine chikanganiso, uye hapana kodhi yemhosva hazvireve kuti hapafanirwe kunge paine mhosva.Kuongorora nzvimbo yekukanganisa kuburikidza nekodhi yekukanganisa inogona kungoshandiswa sereferensi.Zvinodawo kuti vashandi vekuchengetedza vaone zvinhu zvakakosha zvekuongorora mushure mekunyatsoongorora uye kutonga zvinoenderana neruzivo rwakaunganidzwa, ruzivo uye tekinoroji.Nekubatsirwa kwezviridzwa nemamita kuona maitiro ekuita kwezvikamu, tinogona kutonga chokwadi chekodhi yekukanganisa, kutsvaga chikonzero chaicho chekukanganisa uye kuona nzvimbo yekukanganisa.