Principe de travail de la machine lyophilisée

Freeze Dry Machine adopt drying technique by the principle of sublimation. It freezes the dried material at a low temperature and then directly sublimates the frozen water molecules into water vapor under a suitable vacuum environment. The product obtained by lyophilization is called a lyophilizer, and the process is called lyophilization.

La substance est toujours à basse température (état de congélation) avant le séchage, et les cristaux de glace sont uniformément répartis dans la substance, et le processus de sublimation ne provoque pas de concentration due à la déshydratation pour éviter les effets secondaires tels que le moussage et l'oxydation causés par la vapeur d'eau . Le matériau sec est poreux sous la forme d'une éponge sèche, et le volume est fondamentalement inchangé, il est donc facilement soluble dans l'eau et restauré à son état d'origine. La dénaturation physique et biologique de la matière sèche est empêchée dans la plus grande mesure.

The Freeze Dry Machine is composed of a refrigeration system, a vacuum system, a heating system, and an electrical instrument control system. The main components of the lyophilizer are a drying oven, a condenser, a refrigeration unit, a vacuum pump, and a heating/cooling device.

The lyophilizer works by freezing the dried object to below the triple point temperature and then sublimating the solid water (ice) in the article to water vapor under vacuum conditions, removing it from the products, and drying the products. After the material is pre-treated, it is sent to the quick-freezing bin for freezing, and then sent to the drying bin for sublimation dehydration, and then packaged in the post-treatment workshop.

The vacuum system establishes a low-pressure condition for the sublimation drying chamber. The heating system provides sublimation latent heat to the material, and the refrigeration system provides the required cooling capacity to the cold trap and the drying chamber.

For further information, please go to gf-machine.com to contact us at any time.