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The four-ring freeze-drying experimental freeze-drying machine is to freeze the substance containing a large amount of water into a solid by pre-cooling, and then directly sublimate the water vapor under the condition of vacuu.
The substance itself remains in the ice shelf when it freezes, so it dries with the same volume and is loose and porou.
Freezing ice or other solvents within the product absorbs heat during sublimatio.
The temperature of the product itself is lowered and the sublimation speed is slowed dow.
In order to increase the sublimation speed and shorten the drying time, the product must be properly heate.
The whole drying is carried out at lower temperatur.
Features of freeze dryer:Liquid crystal display, Chinese interface, with sample drying curve;Imported compressor, additionally equipped with heat exchanger, which increases refrigeration capacity and improves water capture capacity;Cold trap opening Large, without inner coil, with sample pre-freezing function;Pre-cooling rack, which can be used as a guide barrel to speed up drying;Cold trap and operating surface are all stainless steel, corrosion-resistant and easy to clean, transparent bell ja.
Operation process of the four-ring freeze-drying experimental freeze-drying machine ①Open the quick inflation valve of the freeze-drying machine, and turn off the power switch of the "vacuum pump" at the same time, so that the air slowly enters the cold hydrazine; if inert gas needs to be filled, the inert gas The decompression conduit of the gas is connected to the "inflating port"; ②Close the "vacuum key" and "refrigeration key" of the freeze dryer, and unplug the power cord if it is not used for a long time; End; ④After the ice in the cold trap turns into water, the water needs to be discharged from the quick inflation valve port, the operation is similar to that of inflation; (if there is a defrost function, press the defrost button to accelerate the dissolutio.
⑤Clean up the water in the cold trap and impurities, and properly maintain the equipment; ⑥ For multi-manifold type, the rubber valve should be closed one by one and the freeze-drying bottle should be removed before repeating the shutdown operatio.
The substance itself remains in the ice shelf when it freezes, so it dries with the same volume and is loose and porou.
Freezing ice or other solvents within the product absorbs heat during sublimatio.
The temperature of the product itself is lowered and the sublimation speed is slowed dow.
In order to increase the sublimation speed and shorten the drying time, the product must be properly heate.
The whole drying is carried out at lower temperatur.
Features of freeze dryer:Liquid crystal display, Chinese interface, with sample drying curve;Imported compressor, additionally equipped with heat exchanger, which increases refrigeration capacity and improves water capture capacity;Cold trap opening Large, without inner coil, with sample pre-freezing function;Pre-cooling rack, which can be used as a guide barrel to speed up drying;Cold trap and operating surface are all stainless steel, corrosion-resistant and easy to clean, transparent bell ja.
Operation process of the four-ring freeze-drying experimental freeze-drying machine ①Open the quick inflation valve of the freeze-drying machine, and turn off the power switch of the "vacuum pump" at the same time, so that the air slowly enters the cold hydrazine; if inert gas needs to be filled, the inert gas The decompression conduit of the gas is connected to the "inflating port"; ②Close the "vacuum key" and "refrigeration key" of the freeze dryer, and unplug the power cord if it is not used for a long time; End; ④After the ice in the cold trap turns into water, the water needs to be discharged from the quick inflation valve port, the operation is similar to that of inflation; (if there is a defrost function, press the defrost button to accelerate the dissolutio.
⑤Clean up the water in the cold trap and impurities, and properly maintain the equipment; ⑥ For multi-manifold type, the rubber valve should be closed one by one and the freeze-drying bottle should be removed before repeating the shutdown operatio.
