Design of Automatic Pretreatment Device for Transformer Oil
In view of the complex operation and low efficiency of transformer oil pretreatment,a set of transformer oil pretreatment automation device was designed modularized.The bottle opening mechanism of the oil control module of the device realized the transfer of bottled oil samples to the liquid circuit system,and the injecting oil and gas and sleeving rubber cap mechanism realized the automat-ic transfer of bottled oil samples to the needle cylinder oil samples,and the multi-station oscillation tray of the degassing and sampling module realized the heating and oscillation of multiple syringe oil samples,and then the extracted sample gas was injected into the chro-matograph through the quantitative tube for component analysis.The accuracy and repeatability of the oil sample transfer and the preci-sion of deaeration were tested.The experimental results show that the device can accurately transfer the gas from the mechanical oscilla-tion to the small needle barrel,and the degas calculated by the laser sensor above the small needle barrel can be accurate to 0.000 1 mL,so as to realize the automatic transformer oil pretreatment.