Liquid nitrogen condensation spiral type collecting device

The utility model relates to the technical field of condensation and collection, in particular to a liquid nitrogen condensation spiral type collecting device which comprises a tank body, a detachably connected cover body is arranged on the tank body, an air inlet is formed in the tank body, and an air outlet is formed in the cover body. A liquid nitrogen column is mounted on the cover body in a penetrating manner, one end of the liquid nitrogen column extends into the tank body, the other end of the liquid nitrogen column extends out of the cover body and is detachably connected with the cover body, an inner cavity is formed in the liquid nitrogen column, a spiral sheet is wound on the outer wall of the liquid nitrogen column in the tank body along the length direction, a cavity is formed in the spiral sheet, and the cavity is communicated with the inner cavity of the liquid nitrogen column; through the structural design of the liquid nitrogen condensation spiral collecting device, the problems of insufficie