Common Faults and Solutions for Glove Boxes

 

1. The circulating fan cannot be started, and the glove box cannot be circulated.

     cause of issue:

      a. The outlet pressure of the cylinder pressure reducing valve is too low to open the angle valve;

      b. The angle valve sensor switch is not sensed, and there is no feedback signal;

      c. The solenoid valve that opens the angle valve is faulty, and no air pressure enters the angle valve.

     Solution:

      a. Check whether the cylinder gas is turned on and whether the working gas inlet pressure reaches 0.5-0.6MPa;

      b. Check whether the angle valve sensor switch normally senses the open position and whether the sensor indicator light is on.

    2. The water and oxygen index rises and cannot reach the value below the required value.

      cause of issue:

      a. Damage to the oxygen battery, battery quality problems and transmitter failure;

      b. If the glove box adsorption material is used for a long time and there are many organic solvents, the adsorption material will be poisoned and the adsorption efficiency will be lost.

      Solution:

      a. Check whether the appearance of the oxygen battery is intact. If there is swelling or leakage, the battery needs to be replaced;

      b. After regeneration, the water-oxygen index keeps a constant value, which can detect whether there is a problem with the water-oxygen transmitter; c. If the index cannot be reached after a certain period of circulation, consider whether the performance of the adsorbent material is damaged, and the material needs to be replaced. .

     3. The pressure of the glove box keeps rising or falling.

     cause of issue:

  The solenoid valve of the glove box air supplement (exhaust air) is stuck by a foreign object and cannot be closed.

     Solution:

     Check whether the air supplement and exhaust solenoid valves are stuck, clean or replace the solenoid valves.

     4. The transition warehouse cannot maintain pressure normally.

    cause of issue:

    a. The sealing ring is aging and the sealing performance becomes worse;

    b. There is foreign matter at the warehouse door, which cannot be sealed normally.

    Solution:

   a. Replace the sealing ring;

   b. Clean up the foreign objects at the seal ring and the warehouse door.

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