Comentários do leitor

Precautions when running the glove box

por Latesha Montez (2020-05-07)


Vacuum glove box is extensively used in industries with higher needs for gas purification. Even though the recent glove box design is additional acceptable and easy to work. Having said that, the framework within the glove box is sophisticated, there are lots of crucial parts, and the procedure is somewhat poor, which may well trigger loss to your experimental benefits. This write-up introduces you how to properly use the vacuum glove box, and the precautions when novices operate the glove box.

A single. Do the job ahead of procedure:

1. Check out if there is nitrogen in the nitrogen bottle. The nitrogen really should be changed in time. The output tension of nitrogen is set to .4mpa.

two. Check out whether the vacuum pump is turned on ordinarily.

three. Check out whether or not the circulation in the glove box is open up. (Purification column-I or purification column-II really should open up a person of them)

four. Check the upper restrict force in the placing ought to be +one, the reduced limit tension is

5. Look at whether oxygen and dew level are ordinary (oxygen is down below .1ppm, dew position is over -40)

six. The vacuum pump of the in excess of-bin need to be in the commonly open up point out

two. Operation notes:

one. The vacuum pump should really be held on through method procedure.

2. When the oxygen focus in the tank exceeds 200PPM, the tools maintenance personnel must be notified to run the system, otherwise the h2o and oxygen purification system will be ruined.

three. Prior to starting off the cycle, check out regardless of whether the cupboard is in problem or regenerating. As the higher than talked about functions are in progress, it is completely forbidden to cycle.

four .Two purification columns can't be regenerated at the similar time.

A. Prior to regeneration, assure that the glove box has been cleaned with inert fuel (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.