What tests and adjustments are required after restarting a compressor following a major overhaul?

After a major overhaul of the compressor, especially in compressor systems that include turbines, a series of tests and adjustments are required to ensure safe and efficient operation. Here are some routine testing and debugging tasks: 1. **Inspection and cleaning**: First, a thorough inspection and cleaning must be carried out to ensure that all components are undamaged and free of any contaminants. 2. **Verification of component replacement**: Confirm that all components that need to be replaced (such as seals, bearings, etc.) have been installed correctly. 3. **Pipe connections**: Check that all pipe connections are secure and free of leaks, especially in the oil and gas circuits. 4. **Lubrication system**: Check the lubrication system to ensure proper flow of lubricant, sufficient quantity of oil, and that the oil quality meets requirements. 5. **Safety valve calibration**: Calibrate the safety valve to ensure it functions properly at the set pressure. 6. **Control system tuning**: Tune the control system to ensure that all parameters are set correctly, and that the system responds in a sensitive and accurate manner. 7. **Electrical system inspection**: Check whether the electrical system and instruments are functioning properly, ensuring there are no wiring errors and that the electrical components are not aged or damaged. 8. **Rotation test (idle test)**: For the rotation test, start with an idle operation to check whether the machinery rotates smoothly, whether the noise is normal, and there are no abnormal vibrations. 9. **Load trial operation**: Gradually increase the load and observe the compressor’s performance under different operating conditions, to check whether parameters such as pressure, flow rate, and temperature meet the design requirements. 10. **Performance Testing**: Conduct comprehensive performance testing, compare performance data before and after maintenance, and analyze potential issues. 11. **Emergency shutdown test**: Simulate an emergency situation to conduct an emergency shutdown test and ensure the reliability of the emergency shutdown system. 12. **Recording and Analysis**: Record all test data and adjustment processes, analyze whether the data meet the expected goals, and make further adjustments if necessary. After the aforementioned tests and adjustments, the compressor should reach its optimal operating condition, ensuring production safety and efficiency. These steps can also help detect potential issues early, preventing large-scale failures in the future. .

Mainly, it involves the instrumentation and electrical interlock tests, each self-regulating valve, and the hydrostatic testing of the cooler... The debugging is carried out step by step according to the process conditions specified in the manual. For reference.