Precautions When Working The Glove Box
Vacuum glove box is greatly applied in industries with substantial demands for gasoline purification. While the existing glove box style and design is a lot more affordable and straightforward to run. Nevertheless, the construction inside of the glove box is complex, there are a lot of crucial sections, and the procedure is marginally improper, which may well result in loss to your experimental success. This write-up introduces you how to effectively use the vacuum glove box, and the safety measures when novices run the glove box.
1. Get the job done ahead of operation:
one. Look at if there is nitrogen in the nitrogen bottle. The nitrogen ought to be changed in time. The output strain of nitrogen is set to .4mpa.
2. Look at irrespective of whether the vacuum pump is turned on normally.
three. Examine no matter whether the circulation in the glove box is open. (Purification column-I or purification column-II need to open one of them)
4. Verify the upper restrict force in the location must be +one, the lessen limit pressure is
5. Look at whether or not oxygen and gloveboxes dew stage are standard (oxygen is below .1ppm, dew place is over -forty)
6. The vacuum pump of the in excess of-bin really should be in the ordinarily open up point out
two. Operation notes:
one. The vacuum pump should be kept on all through method operation.
two. When the oxygen concentration in the tank exceeds 200PPM, the devices routine maintenance personnel must be notified to operate the system, or else the water and oxygen purification procedure will be destroyed.
three. Before setting up the cycle, check out whether or not the cupboard is in condition or regenerating. As the previously mentioned described operations are in development, it is completely forbidden to cycle.
four .Two purification columns are unable to be regenerated at the similar time.
A. In advance of 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.