After the installation of a vortex aerator, commissioning shall be carried out through air tightness test, level calibration, air volume adjustment and operation observation. The core commissioning objectives are to ensure no air leakage in the system, uniform air distribution and qualified oxygen mass transfer efficiency.
Air Tightness Inspection
After installation is completed, close the drain valve and start the fan to supply air under low load. Check for air leakage at the connection points between aerators and pipelines. If bubbles or hissing sound are found, stop the machine immediately to fasten fittings or replace sealing parts.
Level Calibration
Take the reference aerator as the benchmark, use a level meter to adjust the adjustable supports of other units. Ensure all aerator discs are on the same horizontal plane with a deviation no more than ±5mm, so as to avoid uneven air distribution.
Air Volume Commissioning
Gradually increase the air volume up to the design value, and observe whether the bubble distribution is uniform. If bubbles are locally dense or sparse, slightly adjust the corresponding branch pipeline valves or check whether the aeration holes are blocked.
Operation Monitoring
Run continuously for 24 hours, monitor the dissolved oxygen (DO) concentration, the stability of current and voltage, and check for abnormal vibration or noise. In case of large DO fluctuation or equipment overheating, troubleshoot the fan matching performance or pipeline resistance problems.
Record the changes of all parameters during commissioning and form a commissioning report, which facilitates later maintenance and optimization.