Precautions when operating the Nichwell glove box

Vacuum glove box is widely utilized in industries with large requirements for gasoline purification. Although the current glove box design and style is much more reasonable and effortless to function. Nonetheless, the structure inside of the glove box is difficult, there are several critical components, and the operation is slightly improper, which might trigger reduction to your experimental results. This report introduces you how to properly use the vacuum glove box, and the safety measures when novices work the glove box.

A single. Perform prior to operation:

one. Check out if there is nitrogen in the nitrogen bottle. The nitrogen need to be replaced in time. The output strain of nitrogen is established to .4mpa.

2. Check out whether the vacuum pump is turned on usually.

three. Examine regardless of whether the circulation in the glove box is open up. (Purification column-I or purification column-II must open up one of them)

four. Check out the higher limit force in the location should be +one, the reduced restrict pressure is

5. Check regardless of whether oxygen and dew point are normal (oxygen is beneath .1ppm, dew point is above -40)

6. The vacuum pump of the over-bin should be in the normally open condition

two. Procedure notes:

one. The vacuum pump must be stored on during technique operation.

2. When the oxygen concentration in the tank exceeds 200PPM, the gear servicing staff need to be notified to function the technique, in any other case the h2o and oxygen purification program will be damaged.

3. Ahead of commencing the cycle, check whether or not the cupboard is in issue or regenerating. As the over mentioned operations are in development, it is definitely forbidden to cycle.

4 .Two purification columns can not be regenerated at the identical time.

A. Before regeneration, make sure 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 laboratory glovebox 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.