Predictive maintenance method for marine centrifugal pump

Abstract

The invention relates to a predictive maintenance method for a marine centrifugal pump. Compared with an existing marine centrifugal pump maintenance mode, the marine centrifugal pump is monitored online, the expected continuous use time can be given in real time according to a fault model in combination with current parameters, and the information can be displayed on a ship in real time. For theonline predictive maintenance of the marine centrifugal pump, the fastest and most accurate predictive maintenance information is provided. Compared with an existing on-line monitoring mode, the method requires less expert intervention, and only needs experts to provide calibration data points as the basis of subsequent calculation.

Description

technical field [0001] The invention relates to the technical field of predictive maintenance of centrifugal pumps, and relates to a method for predictive maintenance of marine centrifugal pumps. Background technique [0002] Rotating mechanical equipment such as large centrifugal pumps in ship systems are affected by various factors such as electricity, heat, machinery, and the environment during operation, and their performance gradually deteriorates, resulting in increased vibration intensity of the body, which threatens itself and others The normal use of the equipment brings huge safety hazards to the navigation of the ship, and sometimes the failure of the entire ship system is harmful or even devastating. [0003] There are several ways to maintain marine centrifugal pumps. The "accident maintenance" method uses the equipment until it breaks down, and then repairs it. For large equipment, sudden accidents may cause huge losses. The regular test and maintenance method...

AI Technical Summary

Problems solved by technology

[0002] Rotating mechanical equipment such as large centrifugal pumps in ship systems are affected by various factors such as electricity, heat, machinery, and the environment during operation, and their performance gradually deteriorates, resulting in increased vibration intensity of the body, which threatens itself and others The normal use of the equipment brings huge safety hazards to the navigation of the ship, and sometimes the failure of the entire ship system is harmful or even devastating

[0003] There are several ways to maintain marine centrifugal pumps. The "accident maintenance" method uses the equipment until it breaks down, and then repairs it. For large equipment, in case of sudden accidents, it may cause huge losses

The regular test and maintenance method is carried out under the static condition of the equipment not running, which has the following disadvantages: the equipment status under the non-working condition is significantly different from that in operation, which affects the accuracy of judgment

Due to regular inspection and maintenance, even when the equipment is in good condition, it still needs to be tested and repaired according to the plan, resulting in waste of manpower and material resources, and may even cause damage due to excessive disassembly and assembly, which is the so-called over-maintenance.

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