Wall bushing of oil-gas structure

The invention discloses a wall bushing of an oil-gas structure, which comprises a wall-through flange, two outer insulation sleeves, two inner insulation sleeves, a capacitor core and a current-carrying tube, and is characterized in that the wall-through flange, the outer insulation sleeves and the outer seal form a closed accommodating space; the current-carrying tube is coaxially arranged in the accommodating space, and the two ends of the current-carrying tube penetrate through the corresponding outer seals and extend to the outer side of the outer insulating sleeve; the capacitor core is arranged outside the current-carrying tube body and located in the accommodating space, and the two inner insulating sleeves are sleeved at the two ends of the capacitor core; a gas chamber is formed between the outer insulating sleeve and the corresponding inner insulating sleeve, and the gas chamber is filled with insulating gas; an oil chamber is formed among the inner insulating sleeve, the through-wall flange and the