vacuum freeze dryer

The vacuum freeze dryer consists of a refrigeration system, a vacuum system, a heating system, and an electrical instrument control system. The main components are drying ovens, condensers, refrigeration units, vacuum pumps, heating/cooling devices, etc. The working principle of the vacuum freeze dryer is to freeze the items to be dried to below the triple point temperature, and then vacuum the solid water (ice) in the object to directly sublimate into water vapor, remove from the items, and make the items dry. After the material is pre-treated, it is sent to a quick-freezing chamber for freezing, then sent to a drying warehouse for sublimation and dehydration, and then packaged in a post-processing workshop. The vacuum system establishes a low pressure condition for the sublimation drying chamber, the heating system provides the sublimation latent heat to the material, and the refrigeration system provides the required coldness to the cold trap and the drying chamber. The vacuum freeze dryer adopts high-efficiency radiant heating, the material is heated evenly, the high-efficiency catching cold trap can be used, and the quick defrosting can be realized; the high-efficiency vacuum unit can be used, and the oil-water separation can be realized; the parallel centralized refrigeration system is adopted, and the multiple-channels are on-demand cooling. Working conditions are stable and energy-saving; artificial intelligence is used to control, with high control accuracy and easy operation.
The quality requirements for freeze-dried products are: constant biological activity, uniform appearance, color, full shape, firm structure, fast dissolution rate, and low residual moisture. To obtain high-quality products, we should have a more comprehensive understanding of the theory and process of freeze-drying. The freeze-drying process of the vacuum freeze dryer includes pre-freezing, sublimation and re-freezing in three stages. Reasonably and effectively shortening the cycle of lyophilization has obvious economic value in industrial production.
The application of vacuum freeze dryer is very extensive, and the frequency of use is also very high. Therefore, whether the vacuum freeze dryer can be used normally is very important to the enterprise. We all know that cars need regular maintenance after driving a certain distance. The same applies to other mechanical equipment, including vacuum freeze dryers. It is necessary to do the vacuum freeze dryer cleaning work.

 

If you have the needs of freeze dryers, freeze dryers, etc., you need to know the quotation, Please go to # to find the phone +86-10-58895379 or email: info@bjsyhx.com.cn Contact us, we will contact you in the first time.

lab equipment vacuum freeze dryer technology has a wide range of applications in the fields of bioengineering, pharmaceutical industry, food industry, materials science and deep processing of agricultural and sideline products. So what are the advantages of freeze-drying technology Xiaobian is here to introduce you one by one.

1. In the process of lab equipment vacuum freeze dryer, the growth of microorganisms and the action of enzymes cannot be carried out, so the original sex can be maintained. Since the drying is carried out in a frozen state, the volume is almost constant, the original structure is maintained, and concentration does not occur.

2. Since the drying is carried out under vacuum, there is very little oxygen, so some easily oxidizable substances are protected.

3. Drying can exclude more than 95-99% of water, so that the dried product can be preserved for a long time without deterioration.

4. The dried material is porous and spongy. After adding water, it dissolves quickly and completely, and immediately restores the original trait.

5. lab equipment vacuum freeze dryers are carried out at low temperatures and are therefore particularly suitable for many heat sensitive materials. Such as protein, microorganisms and the like will not degenerate or lose biological vitality. Therefore, it is widely used in medicine.

6. When drying at low temperature, some volatile components in the material are lost little, suitable for some chemical products, medicines and foods to be dry.

 

If you have the needs of freeze dryers, freeze dryers, etc., you need to know the quotation, Please go to # to find the phone +86-10-58895379 or email: info@bjsyhx.com.cn Contact us, we will contact you in the first time.