Pipe network mounting structure for oil-carrying operation of external floating roof oil tank

The utility model provides an external floating roof oil tank oil-carrying operation pipe network installation structure which comprises a tank outer wall installation assembly, a ladder installation assembly and a floating roof installation assembly. The tank outer wall installation assembly is provided with first porous pipe positions used for clamping and fixing nitrogen injection pipes and sampling pipes, and the first porous pipe positions are fixed to the outer wall of an external floating roof oil tank through connecting pieces. The ladder mounting assembly is provided with a second porous pipe position for clamping and fixing each nitrogen injection pipe and each sampling pipe, and is fixed on a ladder of the external floating roof oil tank through a connecting piece; a magnet is arranged in the floating roof mounting assembly, a third porous pipe position for clamping and fixing each nitrogen injection pipe and each sampling pipe is arranged, and the floating roof mounting assembly is adsorbed and fi