Low pressure methanol cycle machine failure
Thread Content
Ask an expert: In the low-pressure methanol production process of our factory, we currently have a circulating gas compressor, which runs normally when idling, but when the pressure reaches about 4.0MPa, the motor overcurrents and trips. The equipment turns easily and runs without abnormal noise. There was no problem with the electrical appliances either. I would like to ask experts for advice. What are the reasons that may cause this situation?
Some time ago, we also had a pump that jumped after a while after being turned on, but the current did not exceed the current level. Later, the electrical personnel disassembled the motor on site and re-inspected it, and it was fine. So I guess you are also very likely to have a problem with the motor itself. Please contact the manufacturer.
1. Verify the motor power； 2. Check whether the process parameters are abnormal ； Is there any liquid entrainment?
Is there something wrong with the excitation? Looking for electrical and maintenance consultations.
There should be a problem with the motor. From your description, when the pressure reaches 4.0MPa, it should not exceed the design value, so there can only be a certain problem with the motor itself.
1. It may be a problem with the motor itself. 2. Check whether the composition of the process medium deviates too much from the design conditions.
There must be a big change in the gas composition, or the circulation volume is too large,
It may be overloaded. If it doesn't work, try half-loading it first to see if it can run normally!
Thank you all for this! :)The problem has been solved! It is caused by internal leakage of the valve causing liquid in the outlet pipe.
Hello! Can you tell me in detail what happened?