Freeze Dryer-Heating Freeze Dryer-Freeze Dryer Equipment

Nov 13, 2018

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Can the vacuum freeze dryer freeze the liquid material? According to the speed of the freeze dryer, can it be more time and effort? One problem that I don't realize at this point is that the working environment of the vacuum freeze dryer is vacuum! Many people are often prone to negligent accidents because they are not aware of this problem. Do you know if you have such a situation around you?


The amount of water vapor in the compressed air of a vacuum freeze dryer is determined by the temperature of the compressed air: reducing the temperature of the compressed air reduces the amount of water vapor in the compressed air while maintaining the pressure of the compressed air substantially constant. Water vapor will condense into a liquid. The freeze dryer uses this principle to use refrigeration technology to dry compressed air. Therefore, the dryer has a refrigeration system. The refrigeration system of the freeze dryer is a compression type refrigeration system consisting of four basic components: a refrigeration compressor, a condenser, an evaporator, and an expansion valve. They are connected by pipes in a row to form a closed system.


The purpose of the vacuum freeze dryer is to freeze the aqueous substance, first freeze it into a solid state, and then sublimate the water from the solid state into a gaseous state to remove the water and preserve the substance. Simply put, it is a drying process that is achieved by freezing the material. The freeze dryer is a liquid crystal display, Chinese interface, with sample drying curve; it has an imported compressor, and also has a heat exchanger, which increases the cooling capacity and improves the water catching capacity; its cold trap opening is large, no The inner coil has a sample pre-freezing function, and the pre-cooling frame can be used as a guiding bucket to speed up the drying speed, and the cold trap and the operating surface are all stainless steel, corrosion-resistant and easy to clean, transparent bell jar. It is these qualities that make freeze-drying equipment more widely used in everyday use.


Although a small vacuum freeze dryer cannot freeze the liquid material immediately, a large dryer can do this.

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