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Menene Dalilan Babban Vibration na Fam ɗin Turbine a tsaye?

Kategorien: Sabis na Fasaha About the Author: Asalin: Asalin Lokacin fitarwa: 2022-09-01
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Binciken abubuwan da ke haifar da girgizawar famfo injin turbin tsaye

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1. Vibration lalacewa ta hanyar shigarwa da kuma taro sabawa nafamfo injin turbin tsaye
Bayan shigarwa, bambanci tsakanin matakin jikin famfo da kushin turawa da kuma tsayin bututun ɗagawa zai haifar da girgizar jikin famfo, kuma waɗannan ƙimar sarrafawa guda uku suna da alaƙa da wani ɗan lokaci. Bayan an shigar da jikin famfo, tsayin bututun ɗagawa da kan famfo (ba tare da allon tacewa ba) ya kai mita 26, kuma an dakatar da su duka. Idan karkatar da bututun ɗagawa a tsaye ya yi girma sosai, famfon zai haifar da girgizar bututun ɗagawa da magudanar lokacin da famfon ke juyawa. Idan bututun dagawa ya yi tsayi sosai, za a haifar da matsananciyar damuwa yayin aikin famfo, wanda zai haifar da karyewar bututun daga. Bayan an haɗa fam ɗin rijiyar mai zurfi, kuskuren tsaye na bututun ɗaga ya kamata a sarrafa shi a cikin 2mm a cikin tsayin duka. Kuskuren tsaye da kwance shine 0 famfo.05/l000mm. Haƙurin ma'auni na ma'auni na famfo shugaban impeller bai wuce 100g ba, kuma yakamata a sami izini na sama da ƙasa na 8-12mm bayan taro. Kuskuren ƙaddamarwa da shigarwa da taro shine dalili mai mahimmanci don girgiza jikin famfo.

2. Guguwar bututun tuƙi na famfo
Whirl, wanda kuma aka sani da "spin", shine girgizar kai mai jin daɗi na jujjuyawar igiya, wanda ba shi da sifofin jijjiga kyauta kuma ba nau'in girgizar dole ba ne. An kwatanta shi da motsi na juyawa na shaft a tsakanin bearings, wanda ba ya faruwa lokacin da kullun ya kai ga maɗaukakiyar gudu, amma yana faruwa a cikin babban kewayon, wanda ba shi da dangantaka da saurin shatar kanta. Juyawan famfon rijiyar mai zurfi yana faruwa ne saboda rashin isassun man shafawa. Idan ratar da ke tsakanin shaft da maƙala ya yi girma, jagorancin juyawa ya saba da na shaft, wanda kuma ake kira girgiza shaft. Musamman ma, injin tuƙi na famfo mai zurfin rijiyar yana da tsayi, kuma ƙayyadaddun izinin dacewa tsakanin nau'in roba da shaft ɗin shine 0.20-0.30mm. Lokacin da akwai takamaiman izini tsakanin shaft da ɗaukar hoto, madaidaicin ya bambanta da ɗaukar hoto, nisan tsakiya yana da girma, kuma sharewar ba ta da lubrication, kamar zurfin rijiyar famfo roba mai ɗauke da lubrication Bututun ruwa ya karye. An katange Rashin aiki yana haifar da rashin isasshen ruwa ko rashin lokaci, kuma yana iya girgiza. Mujallar ta ɗan ɗan yi hulɗa tare da ɗaukar roba. Mujallar ta kasance ƙarƙashin ikon tangential na ɗaukar nauyi. Jagoran ƙarfin yana adawa da jagorancin saurin shaft. A cikin hanyar yanke hanyar tuntuɓar bangon mai ɗaukar hoto, akwai yanayin motsawa zuwa ƙasa, don haka mujallar zalla tana birgima tare da bangon ɗamara, wanda yayi daidai da nau'ikan kayan ciki guda biyu, yana yin motsi na juyawa sabanin alkiblar. jujjuyawar shaft.

Lamarin da ke faruwa a cikin ayyukanmu na yau da kullum ya tabbatar da hakan, wanda kuma zai sa kwanon roba ya dan dade yana konewa.

3. Vibration da ke haifar da wuce gona da iri na famfon turbine a tsaye
Kushin matsa lamba na jikin famfo yana ɗaukar alloy na tushen tin, kuma nauyin da aka yarda shine 18MPa (180kgf/cm2). Lokacin da aka fara aikin famfo, man shafawa na kushin turawa yana cikin yanayin lubrication na iyaka. Ana shigar da bawul ɗin malam buɗe ido na lantarki da bawul ɗin ƙofar hannu a mashin ruwan famfo. Lokacin da famfo ya fara, buɗe bawul ɗin malam buɗe ido na lantarki. Sakamakon zubewar silin, ba za a iya buɗe farantin bawul ko kuma a rufe bawul ɗin ƙofar hannun saboda dalilai na ɗan adam, kuma shayarwar ba ta dace ba, wanda zai sa jikin famfo ya yi rawar jiki da ƙarfi kuma kushin turawa zai ƙone da sauri.

4. Turbulent vibration a kanti na tsaye turbine famfo. 
Ana saita hanyoyin famfo a jere. Dg500 gajeren bututu. Duba bawul. Bawul ɗin malam buɗe ido. Bawul ɗin hannu. Babban bututu da mai kawar da guduma na ruwa. Matsanancin motsi na ruwa yana haifar da yanayin bugun jini mara tsari. Bugu da ƙari, toshewar kowane bawul, juriya na gida yana da girma, yana haifar da karuwa da matsa lamba. Canje-canje, yin aiki a kan girgiza bangon bututu da jikin famfo, na iya lura da yanayin bugun jini na ƙimar ma'aunin matsa lamba. Ana ci gaba da jujjuya matsin lamba da filaye masu saurin gudu a cikin kwararar ruwa zuwa jikin famfo. Lokacin da rinjaye mita na turbutsi kwarara ya yi kama da na halitta mita na zurfin rijiyar tsarin famfo, da tsarin ya kamata sha makamashi da kuma haifar da vibration. Don rage tasirin wannan rawar jiki, bawul ɗin ya kamata ya kasance cikakke buɗe kuma spool ya zama tsayin da ya dace da goyan baya. Bayan wannan jiyya, ƙimar girgiza ta ragu sosai.

5. Torsional vibration na famfo a tsaye
Haɗin da ke tsakanin dogon bututu mai zurfin rijiyar famfo da injin ɗin yana ɗaukar haɗin gwiwa na roba, kuma jimlar tsawon mashin ɗin shine 24.94m. A lokacin aiki na famfo, akwai babban matsayi na babban rawar jiki na mitoci na kusurwa daban-daban. Sakamakon haɗakar sautin sauƙaƙan sau biyu a mitoci daban-daban ba lallai ba ne mai sauƙi na jijjiga jituwa, wato, girgizar girgizar ƙasa tare da digiri biyu na 'yanci a cikin jikin famfo, wanda ba zai yuwu ba. Wannan jijjiga ya fi shafar kuma yana lalata mashin turawa. Don haka, a yanayin tabbatar da cewa kowane jirgin da ke tura kushin yana da madaidaicin mai, canza mai 68 # da aka ƙayyade a cikin umarnin kayan aiki na asali zuwa 100 # mai don ƙara dankowar man da ke shafa man da kuma hana fim ɗin lubricating na hydraulic. na tura kushin. samuwar da kiyayewa.

6. Vibration lalacewa ta hanyar tasiri na juna na famfo da aka sanya a kan katako guda
Ana shigar da famfo mai zurfin rijiyar da injin a kan sassan biyu na 1450 mmx410mm akan ginshiƙan simintin siminti mai ƙarfi, babban adadin kowane famfo da motar shine 18t, girgizar girgizar famfo guda biyu kusa da kan firam guda ɗaya shine wani tsarin Vibration kyauta guda biyu. Lokacin da vibration na daya daga cikin Motors ya wuce misali tsanani da gwajin gudanar ba tare da lodi, wato, roba hada biyu ba a haɗa, da kuma amplitude darajar da motor sauran famfo a cikin al'ada aiki ya tashi zuwa 0.15mm. Wannan yanayin ba shi da sauƙi a gano, kuma ya kamata a mai da hankali a kansa.


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