Precautions When Working The Glove Box
Vacuum glove box is widely used in industries with large requirements for fuel purification. Although the latest glove box design is additional sensible and simple to run. Having said that, the structure inside the glove box is complex, there are numerous critical pieces, and the operation is marginally improper, which may perhaps induce reduction to your experimental success. This post introduces you how to appropriately use the vacuum glove box, and the safeguards when novices run the glove box.
A person. Operate in advance of operation:
one. Check if there is nitrogen in the nitrogen bottle. The nitrogen should be replaced in time. The output tension of nitrogen is set to .4mpa.
two. Examine no matter whether the vacuum pump is turned on generally.
three. Check out no matter whether the circulation in the glove box is open. (Purification column-I or purification column-II should really open one of them)
four. Look at the higher restrict tension in the setting should really be +1, the reduce limit force is
5. Test no matter if oxygen and dew stage are ordinary (oxygen is below .1ppm, dew stage is over -40)
six. The vacuum pump of the more than-bin really should be in the commonly open point out
two. Procedure notes:
1. The vacuum pump should be stored on through procedure operation.
two. When the oxygen concentration in the tank exceeds 200PPM, the tools maintenance personnel ought to be notified to run the method, usually the h2o and oxygen purification method will be ruined.
three. Ahead of setting up the cycle, check out no matter whether the cupboard is in situation or regenerating. As the above stated functions are in development, it is certainly forbidden to cycle.
4 .Two purification columns can't be regenerated at the very same time.
A. Right before regeneration, make certain that the glove box has been cleaned with inert gasoline (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.