Kusanthula zomwe zimayambitsa kugwedezeka kwa pampu yoyimirira ya turbine

1. Kugwedera chifukwa cha unsembe ndi msonkhano kupatuka wapampu yoyimirira ya turbine
Pambuyo pa kuyika, kusiyana pakati pa msinkhu wa mpope ndi chopondera ndi verticality ya chitoliro chonyamulira kumayambitsa kugwedezeka kwa thupi la mpope, ndipo zikhalidwe zitatuzi zimagwirizananso pamlingo wina. Pambuyo pa kukhazikitsidwa kwa thupi la mpope, kutalika kwa chitoliro chokweza ndi mutu wa mpope (popanda chophimba cha fyuluta) ndi 26m, ndipo zonse zimayimitsidwa. Ngati kupatuka koyima kwa chitoliro chonyamulira kuli kwakukulu kwambiri, mpopeyo umayambitsa kugwedezeka kwakukulu kwa chitoliro chonyamulira ndi shaft pomwe mpope ukuzungulira. Ngati chitoliro chonyamulira chili chowongoka kwambiri, kupsinjika kosinthika kumapangidwa panthawi yogwiritsira ntchito mpope, zomwe zimapangitsa kusweka kwa chitoliro chokweza. Pambuyo pakusonkhanitsidwa kwapampu yakuya, cholakwika cha verticality ya chitoliro chokweza chiyenera kuyendetsedwa mkati mwa 2mm mkati mwa utali wonse. Cholakwika choyima ndi chopingasa ndi 0 pump.05/l000mm. Kulekerera kwamphamvu kwa chopondera pamutu sikuposa 100g, ndipo payenera kukhala 8-12mm kumtunda ndi kumunsi kwa serial chilolezo pambuyo pa msonkhano. Kulakwitsa koyikirapo komanso kuphatikizika kwachilolezo ndi chifukwa chofunikira cha kugwedezeka kwa thupi la mpope.

2. Kuzungulira kwa shaft ya pampu
Whirl, yemwe amadziwikanso kuti "spin", ndiye kugwedezeka kosangalatsa kwa shaft yozungulira, yomwe ilibe mawonekedwe a kugwedezeka kwaulere komanso si mtundu wa kugwedezeka kokakamiza. Zimadziwika ndi kayendetsedwe ka kayendedwe ka shaft pakati pa zitsulo, zomwe sizichitika pamene shaft ikufika pa liwiro lovuta, koma imapezeka mumtundu waukulu, womwe umakhala wochepa kwambiri ndi liwiro la shaft palokha. Kugwedezeka kwa pampu yakuya kwachitsime kumachitika makamaka chifukwa cha kusakwanira kwa mafuta onyamula. Ngati kusiyana pakati pa shaft ndi kubereka kuli kwakukulu, njira yozungulira imatsutsana ndi shaft, yomwe imatchedwanso kugwedezeka kwa shaft. Makamaka, shaft ya pampu yakuya yachitsime ndi yayitali, ndipo chilolezo choyenera pakati pa mphira ndi mphira ndi 0.20-0.30mm. Pakakhala chilolezo china pakati pa shaft ndi kunyamula, tsinde limasiyana ndi kunyamula, mtunda wapakati ndi waukulu, ndipo chilolezocho chimakhalabe mafuta, monga chitsime chakuya cha rabara chokhala ndi lubrication Chitoliro cha madzi chasweka. Oletsedwa. Kusagwira ntchito molakwika kumabweretsa madzi osakwanira kapena osabwera nthawi yake, ndipo nthawi zambiri kugwedezeka. Magaziniyi imakhudzana pang'ono ndi mphira wa rabara. Magaziniyi imakhudzidwa ndi mphamvu ya tangential ya kubereka. Kuwongolera kwa mphamvu kumatsutsana ndi liwiro la shaft. Pakudulira komwe kumalumikizana ndi khoma lonyamulira, pali chizolowezi chosunthira pansi, kotero magaziniyo imangozungulira pakhoma lonyamula, lomwe ndi lofanana ndi magiya amkati, ndikupanga kusuntha kozungulira komwe kumayendera. kuzungulira kwa shaft.

Izi zatsimikiziridwa ndi momwe zinthu zilili mu ntchito yathu ya tsiku ndi tsiku, zomwe zidzachititsanso kuti mphira ikhale yotentha kwa nthawi yayitali.

3. Kugwedezeka komwe kumachitika chifukwa cha kuchuluka kwa pampu yoyima ya turbine
Pansi yopopapopo imatengera aloyi ya babbitt ya malata, ndipo katundu wololedwa ndi 18MPa (180kgf/cm2). Pamene thupi la mpope liyamba, kudzoza kwa pad thrust pad kumakhala m'malire a mafuta. Valovu yagulugufe yamagetsi ndi valavu yachipata yamanja imayikidwa pamadzi a pampu. Pompo ikayamba, tsegulani valavu yagulugufe yamagetsi. Chifukwa cha kuyika kwa silt, mbale ya valve sichitha kutsegulidwa kapena valavu yachipata yamanja imatsekedwa chifukwa cha zinthu zaumunthu, ndipo kutulutsa sikoyenera panthawi yake, zomwe zimapangitsa kuti thupi la mpope ligwedezeke mwamphamvu ndipo phala loponyera liwotcha mwamsanga.

4. Kugwedezeka kwa chipwirikiti potulutsira pampu yoyimirira ya turbine. 
Zopopera zimayikidwa motsatira. Dg500 chitoliro chachifupi. Onani valavu. Valve yagulugufe yamagetsi. Valve yamanja. Chitoliro chachikulu ndi chochotsera nyundo yamadzi. Kusuntha kwa chipwirikiti kwa madzi kumapangitsa kuti pakhale phokoso losakhazikika. Kuphatikiza pa kutsekeka kwa valve iliyonse, kukana kwanuko kumakhala kwakukulu, zomwe zimapangitsa kuwonjezeka kwachangu ndi kupanikizika. Zosintha, zomwe zimagwira pa kugwedezeka kwa khoma la chitoliro ndi thupi la mpope, zimatha kuwona zochitika za pulsation za mtengo wamagetsi. Kuthamanga kwa pulsating ndi ma velocity minda mukuyenda kwa chipwirikiti kumasamutsidwa mosalekeza ku thupi la mpope. Pamene mafupipafupi othamanga a chipwirikiti akufanana ndi mafupipafupi achilengedwe a dongosolo la mpope lakuya, dongosololi liyenera kuyamwa mphamvu ndikuyambitsa kugwedezeka. Kuti muchepetse zotsatira za kugwedezeka uku, valavu iyenera kutsegulidwa kwathunthu ndipo spool iyenera kukhala yotalika komanso yothandiza. Pambuyo pa mankhwalawa, kugwedezeka kwamtengo wapatali kunachepetsedwa kwambiri.

5. Kugwedezeka kwa torsional kwa mpope wowongoka
Kulumikizana pakati pa shaft yakuya pampu yakuya ndi mota imatenga cholumikizira zotanuka, ndipo kutalika konse kwa shaft yoyendetsa ndi 24.94m. Pa ntchito mpope, pali superposition wa kugwedera waukulu osiyana mafunde aang'ono. Chotsatira cha kaphatikizidwe ka ma resonances awiri osavuta pamafuriji osiyanasiyana ang'ono sikutanthauza kugwedezeka kosavuta kwa harmonic, ndiko kuti, kugwedezeka kwa torsional ndi magawo awiri a ufulu mu thupi la mpope, zomwe sizingalephereke. Kugwedezeka kumeneku kumakhudza kwambiri ndikuwononga ma thrust pads. Choncho, pa nkhani ya kuonetsetsa kuti aliyense ndege kukankhira PAD ali lolingana mafuta mphero, kusintha 68 # mafuta otchulidwa choyambirira zida mwachisawawa malangizo 100 # mafuta kuonjezera mamasukidwe akayendedwe a thrust PAD kudzoza mafuta ndi kupewa hayidiroliki lubricating filimu. cha pansi pa chitseko. kupanga ndi kukonza.

6. Kugwedezeka komwe kumachitika chifukwa chogwirizana ndi mapampu omwe amaikidwa pamtengo womwewo
Pampu yakuya yakuya ndi mota zimayikidwa pazigawo ziwiri za 1450 mmx410mm pamitengo yolimba ya konkriti, kuchuluka kwa pampu iliyonse ndi mota ndi 18t, kugwedezeka kwa mapampu awiri oyandikana pamtengo womwewo ndi njira ina iwiri yaulere ya Vibration. Pamene kugwedezeka kwa imodzi mwa injini kupitirira muyezo kwambiri ndipo mayeso amathamanga popanda katundu, ndiko kuti, lumikiza zotanuka si chikugwirizana, ndi matalikidwe mtengo wa galimoto ya mpope wina mu ntchito yachibadwa limakwera 0.15mm. Izi sizili zophweka kuzizindikira, ndipo tiyenera kuziganizira.