Optimization of air supply structure of multi-cage monkey negative pressure isolators

The consistency of the air supply in each cage is one of the important indicators of multi-cage negative pressure isolation and breeding equipment. Based on a monkey negative pressure isolator, establishes the computer model of its air supply structure, and performs numerical simulation to optimize its air supply structure. The results show that the air change rate has little effect on the consistency of the air supply between the cages, and it does not need to be considered when optimizing the air supply structure. When the air supply holes of the same layer cage are distributed symmetrically, the air supply is basically the same. The difference between interlayer cages in air supply is mainly affected by the diameter of the air supply holes. When the diameter of the air supply holes of the upper and lower cages is 16 mm and 14 mm, respectively, the air supply rate of each cage has a good consistency.