Freeze drying experimental device

The utility model discloses a freeze drying experimental device and belongs to the technical field of freeze drying equipment. The freeze drying experimental device comprises a container, a forming die, a vacuum pump, a top cover, a forming die air duct, a breather pipe and a forming die base, wherein the container is arranged on an experimental platform; the forming die is arranged in the container; the top cover used for sealing is arranged at the top of the forming die; the forming die base used for heat conduction is arranged at the bottom of the forming die; the forming die is communicated with the vacuum pump through the forming die air duct and the breather pipe sequentially; a valve and a gas control device are arranged between the forming die air duct and the breather pipe. The freeze drying experimental device combines the characteristic of freeze drying, water steam formed by sublimating ice can be drained out in time through pressure difference formed in the interior and the exterior of the forming die, the structure is simple, movement is convenient, the cost is low, application and popularization are convenient, multiple forming dies of different sizes can be machined for alternate use according to needs, and the approximately net size formation can also be achieved.