Closed cell separation operation apparatus

A closed cell separation operation apparatus, comprising:

• a first tube body, being a cylinder-like container defined by a peripheral wall, the first tube body having a closed top that sealably communicates with the exterior through a vent and an inlet, wherein the vent is for allowing air to pass and enter or exit the first tube body and the inlet is for allowing fluid from an external fluid source to enter the first tube body;
• and the first tube body having a closed bottom that sealably communicates with the exterior through a central outlet;
• a second tube body, being a cylinder-like container defined by a peripheral wall, the second tube body having a closed top that sealably communicates with the exterior through a vent and an inlet, wherein the vent is for allowing an air to pass and enter or exit the second tube body and the inlet is for allowing at least one part of the fluid from the outlet of the first tube body to enter the second tube body and the second tube body having a closed bottom that sealably communicates with the exterior through a centrally formed outlet;
• and
• a connecting pipe, being arranged between the outlet of the first tube body and the inlet of the second tube body, so as to link the first tube body and the second tube body.