Operating procedures of cold dryers and safe operating procedures for dryers

According to the cooling water circulation system operation rules, open the Mingda cold dryer to start the cooling water circulation system. Open the condenser inlet valve.
Before using the freeze dryer, it must be reported to the engineering department, and with the consent of the engineering department, it shall be operated by the person responsible for the installation.

Open the two retraction valves of the refrigeration system and check if the exhaust valve on the water trap is in the closed configuration.

Turn on the power supply of the regulator, check whether the voltage can be 380V or 2020V, and then turn on the power supply on the control panel, and press the meter button to display the temperature and vacuum performance on the panel. Open the vacuum pump outlet cover.

The cooling water circulation system is started according to the cooling water circulation system operating procedure. Open the condenser inlet valve.

According to the process requirements, the material is placed in the dynamic dry tray, and the temperature probe is installed. The maximum amount of lyophilization should not exceed 30 kg.

Close the freeze-dried door and start the operation according to the freeze-drying process. All the operations are performed by the full-time staff, and you must not leave the person during the event, and pay attention to the tightening machine pressure and oil pressure indication, if there is very real-time exclusion.

Complete the freeze-drying operation, unload the materials, clean the dry box and the temperature probe, and perform the defrosting operation.

Dry dryer operating procedures, cold dryer safety control procedures

Close the two shrink valve of the refrigeration system, close the water valve in the condenser, cut off the power supply of the regulator, and lock the power supply on the upper plate.
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