english 1. Equipment manufacturer recommendations
Equipment manufacturers usually provide a rough maintenance cycle recommendation based on the design and performance characteristics of the equipment. This is based on the theoretical service life and performance degradation of the equipment under normal operating conditions and can be used as an initial reference. For example, some manufacturers may recommend a comprehensive inspection and maintenance of the equipment every 3-6 months.
2. Operating time and frequency
The operating time and frequency of the equipment are important factors in determining the maintenance cycle. If the induced air flotation equipment runs continuously for a long time every day, or the operating frequency is high, the wear and aging of the equipment will be relatively fast, and the maintenance cycle needs to be shortened accordingly. On the contrary, if the equipment runs for a short time or runs intermittently, the maintenance cycle can be appropriately extended. Generally speaking, after a certain number of cumulative hours of operation, such as 2000-3000 hours, a maintenance should be arranged.
3. Water quality
The complexity of the inlet water quality and the concentration of pollutants have a great impact on the equipment. If the wastewater contains a large amount of impurities, grease, corrosive substances or high hardness, it will accelerate the corrosion, clogging and wear of equipment components, and more frequent maintenance is required. For example, for induced flotation equipment that treats oily wastewater, it may be necessary to check the aeration head and dissolved air releaser once a month to prevent grease clogging.
4. Equipment operation status
Judge the maintenance timing through daily monitoring and observation of the equipment operation status. If the equipment is found to have abnormal sound, vibration, reduced and uneven bubble generation, poor floating effect of scum, poor water quality of effluent, etc., it means that the equipment may have a fault or the parts have been worn. Inspection and maintenance should be carried out in time, not just according to a fixed cycle.
5. Life of key components
Understand the expected life of key components of the equipment and determine the maintenance cycle according to their wear. For example, the motors, bearings and other components of aeration pumps and scrapers are prone to failure after a certain period of operation. The maintenance and replacement plan can be arranged by referring to the service life of these components.
