"Lalacewar Varnish matsala ce ta gama gari a yawancin mai turbin gas.Shin wannan nau'in gurɓataccen abu yana da kaddarorin polar?Akwai takardu da yawa da ke magana game da gurɓatawar varnish, abubuwan sa da magunguna.A yawancin waɗannan takaddun, an karɓi kaddarorin polar abun ciki na varnish a matsayin tabbataccen gaskiya, amma bincikenmu da gwaje-gwajenmu ba su goyi bayan wannan ba.Menene ra'ayinku akan lamarin?
Gaba ɗaya, an san varnish ya ƙunshi kaddarorin polar.Koyaya, yana iya ƙunsar abubuwan da ba na polar ba.Varnish ba shi da sauƙi a ayyana saboda babu nau'i ɗaya.Abubuwa da yawa suna shafar nau'in varnish da ke samuwa, gami da yanayin aiki, nau'in mai da muhalli.
Maimakon ƙoƙarin sanya takamaiman sigogi akan kaddarorin varnish, a ƙasa akwai jerin abubuwa 10 waɗanda yakamata a fahimta game da varnish kamar yadda ya shafi lubrication.
1. Samuwar Varnish na iya farawa daga oxidation da polymerization na lubricants da sauran ruwaye ko lalatawar thermal da matsin lamba da dieseling.Hoton da ke ƙasa yana kwatanta hanyoyin farko don ƙirƙirar varnish.Ko da yake akwai wasu dalilai da yawa na varnish, waɗannan sune mafi mashahuri.
2. Varnish yawanci submicron ne a girman kuma da farko ya ƙunshi abu mai oxide ko carbonaceous.Ana iya samun abubuwan da ke tattare da shi daga mahadi na thermo-oxidative na kwayoyin mai tushe da abubuwan da suka hada da sawa karafa da gurbacewa kamar datti da danshi.Canje-canje na cyclical tsakanin dumama da sanyaya yana fallasa mai zuwa lalatawar thermal da oxidation.
3. Samuwar varnish da sludge sakamakon hazo na high-molecular-weight insoluble oxides daga mai.Kamar yadda farko polar abubuwa, wadannan oxides da iyaka solubility a cikin wadanda ba iyakacin duniya tushe mai kamar turbine man fetur.
4. Wannan yana haifar da fim na bakin ciki, wanda ba zai iya narkewa ba wanda ke rufe saman ciki na sassa na inji kuma yana haifar da mannewa da rashin aiki na sassa masu motsi na kusa kamar servo-valves.
5. Bayyanar varnish a kan sassan injin ciki na iya canzawa daga launin tan zuwa wani abu mai kama da lacquer mai duhu.
6. Har ila yau, ana iya haifar da Varnish ta hanyar kumfa mai iska wanda ke jurewa adiabatic matsawa a cikin yankunan kaya.Wadannan kumfa na iska suna matsawa da sauri, suna haifar da lalatawar mai da ƙari.
7. A lokacin farkon matakai na hadawan abu da iskar shaka da kuma samuwar hadawan abu da iskar shaka byproducts, Rukunin II tushe hannun jari ne mafi resistant.Duk da haka, yayin da ƙarin abubuwan da ke haifar da iskar oxygen, waɗannan ƙananan hannun jari na iya zama mafi sauƙi ga al'amurran da suka shafi varnish saboda girman girman polarity.
8. Yanayin aiki kamar yankuna daban-daban na matsa lamba, tsawon lokacin zama da gurɓataccen ruwa kamar ruwa na iya haɓaka oxidation.
9. Bugu da ƙari ga duhun mai, ana iya sa ido kan yuwuwar varnish ta hanyar gane duk wani abin da ya rage, kwalta ko kayan kamar gummi a cikin gilashin gani, saman injin ciki, abubuwan tacewa da masu rarraba centrifugal.
10. Hakanan za'a iya saka idanu akan yuwuwar Varnish ta hanyar binciken mai ta amfani da Fourier transform infrared (FTIR) spectroscopy, ultracentrifuge, nazarin launi, bincike na gravimetric da membrane patch colorimetry (MPC).
Lokacin aikawa: Mayu-29-2022