FAQ about VNOR and MVR Evaporators

PRINCIPLE OF MVR EVAPORATOR

MVR evaporator is a relatively energy-saving and efficient system commonly used in the evaporation and crystallization industry. MVR evaporator is the abbreviation of vapor mechanical re-compression technology. The MVR evaporator is an energy-saving technology that re-uses the energy of the secondary steam generated by itself, thereby reducing the demand for external energy.
 
The core equipment of the MVR evaporator is the steam compressor system, which mainly compresses water vapor. Currently, integral skid-mounted centrifugal fans, roots compressors, and high-speed centrifugal compressors are widely used in China, equipped with sealing systems, lubrication systems, oil cooling systems, control and monitoring systems, and drive systems.

COMMON PROBLEMS AND SOLUTIONS OF MVR EVAPORATOR

  • MVR evaporator separator liquid level is too high.

    Cause of the problem:
     (1)Excessive feed amount;
     (2)Crystal slurry pump failure;
     (3)Concentrate outlet line is clogged.

    Treatment method:
     (1)Reduce the amount of feed;
     (2)Check the operation status of the crystal slurry pump;
     (3)Unclog the concentrate outlet lines.
  • MVR evaporator separator liquid level is too low.

     Cause of the problem:
     (1)The feed amount is too small;
     (2)Concentrate line leaking.

      Treatment method:
     (1)Increase the feed amount;
     (2)Check the concentrated liquid outlet pipeline.

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