The invention provides a marine low-temperature
fluid loading and unloading arm, and relates to the technical field of loading and unloading arms, the marine low-temperature
fluid loading and unloading arm comprises a high-point
rope wheel, an outer arm
pipe is movably connected to the inner wall of the high-point
rope wheel, a three-dimensional rotating
pipe head is arranged at the other end of the outer arm
pipe, and one end of the outer arm pipe penetrates through the high-point
rope wheel and is fixedly connected with an inner arm pipe; and an inner arm
barrel is movably installed below the outer wall of the inner arm pipe, a
gas phase balance
assembly is arranged in the middle of the inner arm
barrel and comprises an auxiliary
barrel fixedly installed in the middle of the inner arm barrel, a second hose is fixedly connected to the upper portion of one side of the inner arm barrel, and the other end of the second hose is fixedly connected with a fixing pipe. The motor is controlled to drive the fan blades to rotate through the rotating shaft,
suction force is generated, redundant oil gas in the oil injection space is pumped and filled into the oil suction space, and in the adjusting process, buffering is conducted through the inner arm pipe, so that the air pressure between the
shore cabin and the ship box in the loading and unloading process is balanced, and the
overpressure and negative pressure states are prevented.