Structure and operation precautions of the gland freeze dryer

The cover type freeze dryer is mainly composed of a control system, a vacuum system, a refrigeration system, and a circulation system. In addition to the above components, there are also hydraulic systems, position controlled cleaning systems, and in-place disinfection systems. As a key equipment in the production process of sterile freeze-dried preparations, due to the particularity of drugs, relevant departments have made clear regulations on the material and performance of the capping type freeze-drier. Although the gland freeze dryer has met production requirements, there are still some shortcomings in economic efficiency, product quality, production and management, mainly due to high vacuum, which is not conducive to product sublimation.
Precautions for switching on and off the gland type freeze dryer:
Startup of the gland type freeze dryer:
1. Turn on the main power switch on the left side of the cover type freeze drying cabinet, and the air pressure digital display is 110pk;
Press and hold the total opening key on the control panel of the gland type freeze dryer for more than three seconds, and the temperature digital display shows the actual temperature of the cold trap;
Start the refrigerator and precool for more than 30 minutes;
Place the sample in the sample rack, cover it with a plexiglass cover, and start the vacuum pump;
After the pressure digital display is stable, record the temperature and pressure values.
Shutdown of the gland type freeze dryer:
Record the temperature and air pressure values before shutdown;
Press and hold the inflation valve on the control panel of the gland type freeze dryer, and immediately turn off the vacuum pump;
When the pressure digital display is at atmospheric pressure, open the plexiglass cover and take out the sample;
Turn off the refrigerator, press and hold the main switch button for more than three seconds, and then turn off the main power switch;
After the ice in the cold trap has completely melted into water, open the water outlet valve on the left side of the chassis to drain water, clean the inner wall of the cold trap with a dry cloth, and cover it with a large piece of filter paper to prevent dust.

The above content is organized by Superb heater Company, super heater. Mainly professional production: industrial heating elements, temperature measuring elements, production equipment, accessories, and raw materials such as tubular heaters, tubular heaters, belt heaters, ceramic heaters, silicone rubber heaters, thermocouples, etc.

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