Inexpensive Freeze Dryer

Hangzhou Shengde Machinery Co., Ltd. is one of the most professional manufacturers and suppliers of inexpensive freeze dryer in China. Welcome to wholesale customized inexpensive freeze dryer at competitive price from our factory. Contact us for cheap products and discount information.

Inexpensive Freeze Dryer

Product Description of Freeze Dryer

The vacuum freeze dryer is currently the world's most advanced dehydration processing technology. The freeze-dried food can not only maintain the original shape, taste and freshness, but also can be stored for a long time and is easy to transport. It has been widely used in this field. Vegetables, fruits, spices, aquatic products, biological products, medicines, Chinese herbal medicines, beverages and chemicals, etc.

We have vacuum freeze dryers with an area ranging from 0.5 square meters to 200 square meters, which can be customized according to customers' production needs.

Product  Show of Freeze Dryer

Characteristic of Freeze Dryer

·gentle drying by reducing the boiling point

·continuous, automated process ·fast drying

· low product temperature

·low loss of aroma

·very good water solubility of end products

·very good instant product properties

·We also can free design and produce as your circumstances

Parameter of Freeze Dryer

The Structure of Freeze Dryer

The vacuum freeze dryer is composed of drying box, refrigeration system vacuum system, media heat exchange circulation system, automatic control system, pneumatic system and in-place cleaning and disinfection system.

Freeze dryer drying oven:

The drying box is a vacuum-tight low-pressure container. All materials are made of stainless steel, which can withstand positive and negative pressure and meet the requirements of steam sterilization. 

The sealing adopts high temperature and low temperature resistant silicone rubber, and the thermal insulation layer adopts closed-cell elastic thermal insulation material.

1) Box: It adopts a rectangular box with high space utilization, with a drainage outlet at the bottom and an observation window on the side. Spray inlet connection.

2) Shelf: The energy required for cooling and heating of food is conducted to the shelf through the heat exchange medium, and then to the food. The shelf adopts special hollow plywood, which has high strength and good sealing performance. The shelf assembly is installed in the freeze-drying box 

through a bracket, and a board layer should be set on the top layer as a heat radiation compensation plate to ensure that the food space in the box is in the same temperature environment. Set rails to keep food pans or food from falling off the shelves.

3) Box door: adopts cylinder automatic locking device. Ensure the required vacuum level during the internal pressure of the box. When the vacuum pump is working, open the butterfly room of the thousand boxes. The air and water vapor in the vacuum drying chamber pass through the water 

catcher to capture the moisture and then enter the vacuum pump, and are discharged from the system through the exhaust port of the vacuum pump. In order to prevent the smoke in the exhaust gas from 

polluting the indoor environment. In order to prevent water vapor from entering the pump, the system is equipped with a gas ballast valve, which is opened during the drying process.

Freeze Dryer Media Heat Exchange Circulation System:

The energy required for the cooling and heating of the food is driven by the circulating pump and transmitted to the shelf through the heat exchange medium, and then to the food. The cold source for food cooling is provided by the refrigeration system, the heat source for food heating is provided by 

the heating tank, and the switching between cooling and heating is accomplished by controlling the electromagnetic valve switch of the cold source and the heat source. When the temperature rises, the 

steam enters the heating medium of the heating tank, and the mixing ratio of the heating medium from the heating tank and the heating medium returned from the shelf is adjusted by a pneumatic 

three-way regulating valve, and the opening and closing of the cooling water and electricity valve of the plate heat exchanger is controlled to control the shelf. temperature. The system includes heat 

medium heating tank plate heat exchanger, pneumatic control valve, cooling water solenoid valve, circulating pump, pipeline, solenoid valve, temperature sensor, etc.

Freeze dryer automatic control system:

It has the functions of freeze-drying curve setting, vacuum pump test and control, media temperature, food temperature and water trap temperature control, drying state detection, circuit removal, in-place cleaning and sterilization, automatic protection and alarm.

Freeze dryer pneumatic system:

Control pneumatic valves

Lyophilizer cleaning and disinfection system in place

For cleaning and steam sterilization of dry box water traps

Application of Freeze Dryer

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