The condenser is also a vacuum sealed vessel, in which there is a metal adsorption surface with large surface area. The temperature of the adsorption surface can be reduced to - 40 ℃ to - 70 ℃, and the low temperature range can be maintained. The function of the condenser is to freeze and adsorb the water vapor sublimated from the product in the freeze-drying box on its metal surface. Freeze drying box, condenser, vacuum pipe, valve and vacuum pump constitute the vacuum system of freeze dryer. The vacuum system requires no air leakage, and the vacuum pump is an important part of the vacuum system. Vacuum system is essential for rapid sublimation and drying of products.

Freeze dryer has made great progress in the development, and its market share has also been continuously improved, and it has walked out a wonderful road of development. As one of the dominant enterprises in the field of domestic freeze dryer, freeze dryer manufacturers actively promote the rapid growth of new products, and accelerate the promotion of laboratory freeze dryer, pilot freeze dryer, production freeze dryer, non direct heating vacuum drying oven and freeze dryer system. At the same time, actively layout the development of intelligent freeze dryer, cultivate new profit growth point.

The application of freeze dryer is very extensive, and the frequency of use is also very high, so whether the freeze dryer can be used normally is very important for enterprises. We all know that the car needs regular maintenance after a certain distance. The same is true for other mechanical equipment, including the freeze dryer. It is necessary to clean the freeze dryer. The long-term work of the freeze dryer will bring wear and dust and other impurities to the accessories, which will affect the work. Let's take a look at the hazards of not cleaning the freeze dryer: when the evaporator of the indoor unit and the condenser of the outdoor unit of the freeze dryer are covered with dust.