Ukuminyana kanye ne-viscosity yamafutha e-transformer

Ukuminyana kwamafutha e-Transformer

Izici zezimpawu zazo zonke izinhlobo zamafutha e-transformer zibhekwa njengokuncika okungenzeka okuphansi kwenkomba yokuminyana ekushiseni kwangaphandle kanye nenani eliphansi lephuzu lokuqina (isibonelo, kuwoyela we-TKp brand, yokugcina ingu--45^°C, kanye ne-T-1500 - ngisho -55 ° C).

Ibanga elijwayelekile likawoyela we-transformer liyahlukahluka kuye ngokuminyana kukawoyela ebangeni (0,84…0,89)×10³ kg/m³. Ezinye izici ezithinta ukuminyana zihlanganisa:

• Ukwakheka kwamakhemikhali (ukuba khona kwezithasiselo, okuyinhloko okuyi-ionol).
• Ukuqhuba okushisayo.
• Viscosity (ashukumisayo futhi kinematic).
• I-thermal diffusivity.

Ukuze ubale izici eziningi zokusebenza, ukuminyana kwamafutha e-transformer kuthathwa njengenani lereferensi (ikakhulukazi, ukucacisa izimo zokungqubuzana kwangaphakathi ezithinta umthamo wokupholisa we-medium).

Ukuminyana kwamafutha e-transformer asetshenzisiwe

Enqubweni yokucisha ukukhishwa kukagesi okungenzeka kwenzeke ngaphakathi kwendlu ye-transformer, amafutha angcoliswa yizinhlayiya ezincane kakhulu zokufakelwa kukagesi, kanye nemikhiqizo yokusabela kwamakhemikhali. Emazingeni okushisa aphezulu endawo, angenzeka endaweni enamafutha. Ngakho-ke, ngokuhamba kwesikhathi, ukuminyana kwamafutha kuyanda. Lokhu kuholela ekunciphiseni kwamandla okupholisa amafutha kanye nokubukeka kwamabhuloho okuqhuba okungenzeka anciphisa ukuphepha kagesi kwe-transformer. Lawa mafutha adinga ukushintshwa. Kwenziwa ngemva kwenani elithile lamahora okusebenza kwedivayisi, evame ukuboniswa ngumkhiqizi wayo. Kodwa-ke, uma i-transformer isebenza ngaphansi kwezimo zomngcele, isidingo sokushintshwa singavela ngaphambili.

Emikhiqizweni esekelwe kupharafini, ukwanda kobuningi bamafutha e-transformer nakho kungenxa yokuthi imikhiqizo ye-oxidation (sludge) ayincibiliki futhi ihlala phansi ethangini. Le sediment isebenza njengesithiyo ohlelweni lokupholisa. Ngaphezu kwalokho, umthamo oweqile wama-macromolecular compounds ukhulisa indawo yokuthulula kawoyela.

Ukuhlola amanani wangempela wenkomba yokuminyana kwenziwa ngokulandelana okulandelayo:

1. Amasampula kawoyela athathwa ezindaweni ezahlukene zethangi. Iqiniso liwukuthi ukucekelwa phansi kwe-dielectric kuqhathaniswa ngokuphambene nokuqukethwe kwayo kwamanzi, okusho ukuthi amandla e-dielectric kawoyela we-transformer ayancipha njengoba okuqukethwe kwamanzi kwanda.
2. Usebenzisa i-densitometer, kala ukuminyana kwamafutha bese uqhathanisa namanani anconyiwe.
3. Kuye ngenani lamahora amafutha abesebenza ku-transformer, noma umthamo oshiwo wamafutha amasha wengezwa, noma endala ihlungwa ngokucophelela.

I-viscosity yamafutha e-transformer

I-viscosity iyisici esithinta ukudluliswa kokushisa ngaphakathi kwe-oyela yamafutha. Ukubala kwe-viscosity kuhlala kuyipharamitha ebalulekile yokusebenza lapho ukhetha uwoyela wanoma yiluphi uhlobo lwamandla kagesi. Kubaluleke kakhulu ukwazi i-viscosity yamafutha e-transformer emazingeni okushisa aphezulu. Ngokwezidingo zezinga lombuso, ukunqunywa kwe-viscosity kinematic kanye ne-dynamic kwenziwa emazingeni okushisa angama-40.^°C kanye 100^°C. Uma i-transformer isetshenziswa kakhulu ngaphandle, isilinganiso esengeziwe senziwa futhi ezingeni lokushisa elingu-15.^°C.

Ukunemba kokunqunywa kwe-viscosity kuyanda uma inkomba ye-refractive ye-medium nayo ihlolwe ngokuhambisana ne-refractometer. Umehluko omncane kumanani e-viscosity atholakala emazingeni okushisa okuhlola ahlukene, ngcono amafutha. Ukuzinzisa izinkomba ze-viscosity, kunconywa ukuthi ngezikhathi ezithile uguqule amafutha e-hydrotreat.

Ukuhlolwa kwamafutha e-Transformer