Safeguards When Running The Glove Box
Vacuum glove box is commonly utilized in industries with superior needs for gas purification. Although the existing glove box style and design is a lot more reasonable and uncomplicated to run. Nevertheless, innovative technologies glovebox the structure inside the glove box is complex, there are quite a few crucial elements, and the procedure is slightly improper, which may perhaps induce decline to your experimental success. This short article introduces you how to accurately use the vacuum glove box, and the precautions when novices work the glove box.
One. Work right before operation:
one. Check if there is nitrogen in the nitrogen bottle. The nitrogen should really be replaced in time. The output pressure of nitrogen is established to .4mpa.
two. Check no matter if the vacuum pump is turned on typically.
3. Look at irrespective of whether the circulation in the glove box is open. (Purification column-I or purification column-II ought to open up one of them)
four. Verify the upper restrict tension in the environment ought to be +one, the reduce limit force is
5. Test regardless of whether oxygen and dew point are typical (oxygen is under .1ppm, dew issue is above -40)
6. The vacuum pump of the more than-bin should be in the normally open up state
two. Operation notes:
1. The vacuum pump really should be saved on in the course of technique procedure.
2. When the oxygen focus in the tank exceeds 200PPM, the gear maintenance personnel need to be notified to operate the system, normally the h2o and oxygen purification process will be broken.
three. Ahead of starting off the cycle, look at whether the cupboard is in ailment or regenerating. As the higher than described operations are in development, it is definitely forbidden to cycle.
4 .Two purification columns cannot be regenerated at the exact time.
A. Right before regeneration, be certain that the glove box has been cleaned with inert gas (H2O <200ppm) to ensure sufficient supply of regeneration gas. The regeneration gas pressure is 0.06-0.08mpa.
B. Before starting regeneration, please make sure that the corresponding purification column circulation is closed.
C. The regeneration process takes 24 hours. Once the execution cannot be disconnected, the regeneration gas should be passed 3-6 hours after the regeneration starts. Pay attention to the amount of regeneration gas, adjust the pressure of the regeneration gas appropriately, and ensure the sufficient supply of regeneration gas in these 3 hours. After 6 hours the regeneration origin can be turned off.
D. The vacuum pump cannot be turned off during the regeneration process. Do not touch the top of the purification column to prevent burns.
E. Once the regeneration is terminated unexpectedly, please ensure that the regeneration and circulation of the purification column cannot be restarted within 12 hours or the equipment will be damaged.
5. Care should be taken to protect the work gloves from being damaged during the operation.