Pombi yekuyerera inogadziriswa zvizere ine shaft mixed flow imhando yepombi ine dhayamita yepakati nepakuru inoshandisa blade angle adjuster kufambisa mablade epombi kuti atenderere, nokudaro ichichinja blade placement angle kuti pave nekuchinja kwekuyerera kwemvura nemusoro. Chinhu chikuru chinoendesa mvura yakachena kana tsvina yetsvina pa0~50℃ (nzvimbo dzakakosha dzinosanganisira mvura yegungwa nemvura yeYellow River). Inonyanya kushandiswa muminda yemapurojekiti ekuchengetedza mvura, kudiridza, kudhonza mvura uye mapurojekiti ekubvisa mvura, uye inoshandiswa mumapurojekiti mazhinji enyika akadai seSouth-to-North Water Diversion Project uye Yangtze River to Huaihe River Diversion Project.
Mapazi emubato wemuchina nepamuchina wekuyerera wakasanganiswa anokanganiswa nenzvimbo. Kana mamiriro ekushanda epamuchina akatsauka kubva panzvimbo yekugadzira, chiyero chiri pakati pekumhanya kwakatenderedza kwemucheto wemukati nekunze kwepamuchina chinoparadzwa, zvichiita kuti kusimudza kunokonzerwa nemapazi (airfoils) pa radii dzakasiyana kusaenzana, zvichiita kuti kuyerera kwemvura mupamuchina kuve kwakavhurika uye kurasikirwa kwemvura kuwedzere; kure nenzvimbo yekugadzira, kutenderera kwemvura kunowedzera uye kurasikirwa kwemvura kunowedzera. Mapamu e axial ne mixed flow ane musoro wakaderera uye nzvimbo yakamanikana yekushanda. Kuchinja kwemusoro wavo wekushanda kuchaita kuti pombi ideredzwe zvakanyanya. Naizvozvo, mapombi e axial ne mixed flow haagone kushandisa throttling, kutendeuka nedzimwe nzira dzekugadzirisa kuti achinje mashandiro ekushanda kwemamiriro ekushanda; panguva imwe chete, nekuti mutengo wekudzora kumhanya wakanyanya, kudzorwa kwekumhanya kwakasiyana hakuwanzo shandiswa pakushanda chaiko. Sezvo mapombi e axial ne mixed flow aine hub body yakakura, zviri nyore kuisa mapazi ne blade connecting rod mechanisms anogona kugadzirisa angle. Saka, kugadziriswa kwemamiriro ekushanda kwepombi dzeaxial nedzakasanganiswa kunowanzo shandura angle inoshanduka, izvo zvinogona kuita kuti pombi dzeaxial nedzakasanganiswa dzishande mumamiriro ekushanda akanaka kwazvo.
Kana musiyano wemvura uri kumusoro nepasi pemvura ukawedzera (ndiko kuti, musoro wemagetsi unowedzera), kona yekuisa blade inogadziriswa kuita kukosha kudiki. Nepo ichichengetedza kushanda kwakanyanya, mwero wekuyerera kwemvura unoderedzwa zvakakodzera kudzivirira mota kuti isanyanya kuzara; kana musiyano wemvura uri kumusoro nepasi pemvura uchiderera (ndiko kuti, musoro wemagetsi unoderera), kona yekuisa blade inogadziriswa kuita kukosha kukuru kuti mota ikwanise kuzara uye kubvumira pombi yemvura kupomba mvura yakawanda. Muchidimbu, kushandiswa kwemapombi eshaft nemapombi akasanganiswa anogona kuchinja kona yemagetsi kunogona kuita kuti ishande zvakanaka, kudzivirira kuvharwa kwemagetsi uye kuwana kushanda kwakanyanya uye kupomba mvura yakawanda.
Pamusoro pezvo, kana mudziyo watanga kushanda, kona yekuisa blade inogona kugadziriswa kusvika padiki, izvo zvinogona kuderedza mutoro wekutanga wemota (inenge 1/3 ~ 2/3 yesimba rakatarwa); usati wadzima, kona ye blade inogona kugadziriswa kusvika padiki, izvo zvinogona kuderedza kumhanya kwekudzokera shure uye huwandu hwemvura inoyerera mupombi panguva yekudzima, uye kuderedza kukuvara kwekukanganisa kwekuyerera kwemvura pamidziyo.
Muchidimbu, mhedzisiro yekugadzirisa kona yeblade inokosha: ① Kugadzirisa kona kuita diki kunoita kuti zvive nyore kutanga nekudzima; ② Kugadzirisa kona kuita diki kunowedzera mwero wekuyerera kwemvura; ③ Kugadzirisa kona kunogona kuita kuti pombi ishande zvakanaka. Zvinogona kuonekwa kuti blade angle adjuster ine chinzvimbo chakakosha mukushanda nekutarisira nzvimbo dzekupomba dzepakati nepakuru.
Muviri mukuru wepombi inoyerera mushaft yakasanganiswa inogadziriswa zvizere une zvikamu zvitatu: musoro wepombi, regulator, uye mota.
Ⅰ, Pombi musoro
Kumhanya kwakananga kwepombi inoyerera mvura yakasanganiswa inogadziriswa zvizere i400~1600 (kumhanya kwakajairika kwepombi inoyerera mvura yakasanganiswa i700~1600), (kumhanya kwakajairika kwepombi inoyerera mvura yakasanganiswa i400~800), uye musoro mukuru i0~30.6m. Musoro wepombi unonyanya kuumbwa nehonye yemvura inopinza mvura (joini yekuwedzera mvura inopinza mvura), zvikamu zverotor, zvikamu zveimba yemukamuri, muviri wevane yekutungamira, chigaro chepombi, gokora, zvikamu zvemugodhi wepombi, zvikamu zvekurongedza, nezvimwewo. Nhanganyaya kuzvikamu zvakakosha:
1. Chikamu cherotor ndicho chikamu chikuru chiri mumusoro wepombi. Chine maburi, muviri werotor, tsvimbo yekudhonza yakaderera, bearing, crank arm, operating frame, connecting rod nezvimwe zvikamu. Mushure mekubatanidzwa kwese, bvunzo ye static balance inoitwa. Pakati pazvo, chinhu cheblade chinonyanya kukosha ndeche ZG0Cr13Ni4Mo (kuoma kwakanyanya uye kuramba kupfeka zvakanaka), uye CNC machining inotorwa. Zvinhu zvezvikamu zvasara zvinowanzova ZG.
2. Zvikamu zveimba yemuchina we impeller zvinovhurwa pakati, izvo zvinosimbiswa nemabhoti uye zvinoiswa nemapini e conical. Chinhu chacho chinonyanya kukosha integral ZG, uye zvimwe zvikamu zvakagadzirwa nesimbi isina ngura yakapetwa neZG + (mushonga uyu wakaoma kugadzira uye unowanzo kanganisa welding, saka unofanirwa kudzivirirwa zvakanyanya sezvinobvira).
3. Muviri wevane inotungamira. Sezvo pombi inogadziriswa zvizere iri pombi yepakati kusvika yakakura, kuoma kwekukanda, mutengo wekugadzira nezvimwe zvinhu zvinotariswa. Kazhinji, chinhu chinodiwa iZG+Q235B. Vane inotungamira inokandwa muchidimbu chimwe chete, uye flange yeganda iplate yesimbi yeQ235B. Mhedzisiro mbiri idzi dzinosungirirwa uye dzobva dzagadziriswa.
4. Mugodhi wepombi: Pombi inogadziriswa zvizere inowanzova mugodhi usina chinhu une flange structures kumativi ese. Chinhu chacho chinonyanya kugadzirwa ne 45+ cladding 30Cr13. Mugodhi uri pabearing yegwara remvura ne filler ndewekuwedzera kuoma kwayo uye kuvandudza kusakara.
Ⅱ. Nhanganyaya kuzvikamu zvikuru zvemutongi
Mazuva ano, chinodzora hydraulic angle chakavakirwa mukati chinoshandiswa zvakanyanya pamusika. Chinonyanya kuve nezvikamu zvitatu: muviri unotenderera, chifukidziro, uye bhokisi rehurongwa hwekuratidza.
1. Muviri unotenderera: Muviri unotenderera une chigaro chekutsigira, sirinda, tangi remafuta, hydraulic power unit, angle sensor, power supply slip ring, nezvimwewo.
Muviri wese unotenderera unoiswa pamota huru uye unotenderera pamwe chete nemota. Wakasungirirwa pamusoro pemota huru kuburikidza neflange inosungirirwa.
Flange yekumisikidza yakabatana nechigaro chinotsigira.
Nzvimbo yekuyera yekona inoiswa pakati petsvimbo yepiston neruoko rwetie rod, uye kona inoiswa kunze kwesirinda remafuta.
Mhete yekutsvedza yemagetsi inoiswa uye yakasimbiswa pachifukidziro chetangi remafuta, uye chikamu chayo chinotenderera (rotor) chinotenderera zvakafanana nemuviri unotenderera. Mugumo wekubuda parotor wakabatana neyuniti yemagetsi yehydraulic, sensor yekumanikidza, sensor yekudziya tembiricha, sensor yekona, uye switch yemuganhu; chikamu chestator chering yekutsvedza yemagetsi chakabatana neskruu yekumira iri pachifukidziro, uye stator outlet yakabatana neterminal iri muchifukidziro cheregulator;
Tsvimbo yepiston yakasungirirwa patsvimbo yepombi yemvura.
Chigadziko chemagetsi chehydraulic chiri mukati metangi remafuta, izvo zvinopa simba rekushanda kwesilinda yemafuta.
Pane mhete mbiri dzekusimudza dzakaiswa patangi remafuta kuti dzishandiswe kana chinodzora mafuta chasimudzwa.
2. Chifukidziro (chinonziwo muviri wakagadzika): Chine zvikamu zvitatu. Chikamu chimwe chifukidziro chekunze; chikamu chechipiri chifukidziro chekuvhara; chikamu chechitatu ihwindo rekutarisa. Chifukidziro chekunze chakasungirirwa pamusoro pechifukidziro chekunze chemota huru uye chinofukidza muviri unotenderera.
3. Bhokisi rehurongwa hwekuratidza (sezvakaratidzwa paMufananidzo 3): Rine PLC, touch screen, relay, contactor, DC power supply, knob, indicator light, nezvimwewo. Touch screen inogona kuratidza current blade angle, time, oil pressure nezvimwe zvinhu. Control system ine mabasa maviri: local control uye remote control. Ma control mode maviri anoshandurwa ne two-position knob pa control display system box (inonzi "control display box", yakafanana neiri pazasi).
3. Kuenzanisa uye kusarudzwa kwemota dzinoenderana uye dzisina kuenderana
A. Zvakanakira nekuipira kwemamota anowirirana
Zvakanakira:
1. Mukana wemhepo uri pakati perotor ne stator wakakura, uye kuiswa nekugadzirisa zviri nyore.
2. Kushanda zvakanaka uye kugona kwakasimba kwekuremerwa.
3. Kumhanya hakuchinji nekuremerwa.
4. Kushanda zvakanaka kwazvo.
5. Simba rinogona kuwedzerwa. Simba rinoita basa rinogona kupihwa kune grid yemagetsi, nokudaro zvichivandudza kunaka kwegrid yemagetsi. Pamusoro pezvo, kana simba rinoita basa rakagadziriswa ku1 kana pedyo naro, kuverenga kuri paammeter kunoderera nekuti chikamu chinoita basa chiri mumagetsi chinodzikira, izvo zvisingagoneke kune mota dzisina kuenzana.
Zvakashata:
1. Rotor inofanira kushandiswa nemudziyo wakatsaurirwa wekumutsa.
2. Mutengo wacho wakakwira.
3. Kugadzirisa kwacho kwakaoma zvikuru.
B. Zvakanakira nekuipira kwemamota asina kuenzana
Zvakanakira:
1. Rotor haidi kubatanidzwa kune mamwe masosi emagetsi.
2. Chimiro chiri nyore, huremu hushoma, uye mutengo wakaderera.
3. Kugadzirisa kuri nyore.
Zvakashata:
1. Simba rinoita basa rinofanira kutorwa kubva pagrid remagetsi, izvo zvinoderedza kunaka kwegrid remagetsi.
2. Mukana wemhepo uri pakati perotor ne stator mudiki, uye kuiswa nekugadzirisa hazvibatsiri.
C. Kusarudzwa kwemota
Kusarudzwa kwemamota ane simba re1000kW uye kumhanya kwe300r/min kunofanirwa kusarudzwa zvichibva pakuenzanisa kwehunyanzvi uye kwehupfumi zvichienderana nemamiriro ezvinhu chaiwo.
1. Muindasitiri yekuchengetedza mvura, kana simba rekuisa riri pasi pe800kW, mota dzisina kuenzana dzinofarirwa. Kana simba rekuisa riri pamusoro pe800kW, mota dzinoenzana dzinofarirwa.
2. Musiyano mukuru uripo pakati pemota dzinoenderana nemota dzisingachinjiki ndewekuti pane kutenderedza kwemhepo parotor, uye skrini yekudzikisa thyristor inofanira kugadziriswa.
3. Dhipatimendi remagetsi renyika yangu rinoti simba remagetsi riri pamagetsi emushandisi rinofanira kusvika pamusoro pe0.90. Mota dzinoenderana dzine simba rakawanda uye dzinogona kusangana nezvinodiwa zvemagetsi; nepo mota dzisina simba rakawanda dzine simba rakaderera uye hadzigone kusangana nezvinodiwa zvemagetsi, uye muripo wesimba rinoita basa unodiwa. Nokudaro, nzvimbo dzekupomba dzine mota dzisina simba rakawanda dzinofanira kunge dzakashongedzerwa nezviratidziro zvesimba rinoita basa.
4. Maumbirwo emota dzinoenderana dzakaoma kupfuura emota dzisina kuenzana. Kana chirongwa chepombi chichifanira kufunga nezvekugadzira simba uye modulation yechikamu, mota dzinoenderana dzinofanira kusarudzwa.
Mapombi ekuyerera akasanganiswa axial anogadziriswa zvizereanoshandiswa zvakanyanya muzvikamu zvakamira (ZLQ, HLQ, ZLQK), zvikamu zvakatarwa (zvakanamira) (ZWQ, ZXQ, ZGQ), uye zvinogona kushandiswawo muzvikamu zveLP zvine dhayamita shoma uye dhayamita hombe.
Nguva yekutumira: Gumiguru-18-2024