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发布于:2020-5-7 06:14:33  访问:22785 次 回复:0 篇
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Precautions When Functioning The Glove Box
Vacuum glove box is commonly made use of in industries with large necessities for gas purification. While the current glove box layout is far more affordable and uncomplicated to operate. Nevertheless, the construction inside of the glove box is sophisticated, there are many important parts, and the procedure is a little bit improper, which could lead to decline to your experimental success. This short article introduces you how to effectively use the vacuum glove box, and the precautions when novices work the glove box.
One. Work before operation:
1. Look at if there is nitrogen in the nitrogen bottle. The nitrogen really should be changed in time. The output pressure of nitrogen is established to .4mpa.
2. Look at whether the vacuum pump is turned on normally.
3. Check whether the circulation in the glove box is open up. (Purification column-I or purification column-II need to open a single of them)
4. Examine the upper restrict strain in the setting should be +one, the lower restrict force is
five. Check regardless of whether oxygen and dew stage are ordinary (oxygen is down below .1ppm, dew place is higher than -40)
6. The vacuum pump of the around-bin should be in the typically open up condition
two. Operation notes:
one. The vacuum pump need to be held on throughout technique procedure.
2. When the oxygen concentration in the tank exceeds 200PPM, the machines maintenance staff must be notified to function the system, in any other case the h2o and oxygen purification procedure will be broken.
3. In advance of starting the cycle, look at whether or not the cupboard is in issue or regenerating. As the previously mentioned pointed out operations are in development, it is completely forbidden to cycle.
4 .Two purification columns simply cannot be regenerated at the identical time.
A. Just before regeneration, make certain that the glove box has been cleaned with inert atmosphere glove box 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.
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