Equipment residual life evaluation method and system

Abstract

The invention discloses an equipment residual life evaluation method and system. The method comprises the following steps: step 1, receiving a life evaluation instruction and determining equipment information of to-be-evaluated equipment according to the life evaluation instruction; 2, performing structure analysis on the to-be-evaluated equipment, and classifying parts in the to-be-evaluated equipment into durable parts and vulnerable parts; 3, obtaining a fault occurrence time record of the vulnerable part in the historical maintenance data of the to-be-evaluated equipment, and fitting a service life function of the vulnerable parts by adopting a predetermined distribution function; 4, calculating the residual life of all the vulnerable parts according to the actual operation hours of the to-be-evaluated equipment and the service life functions corresponding to the vulnerable parts; and 5, calculating the residual life of the to-be-evaluated equipment according to weighted calculation and the residual life of the vulnerable parts. Parts in equipment to be evaluated are classified into the durable parts and the vulnerable parts, and after the service life function of the vulnerable parts is fitted, all the vulnerable parts and the residual life of the equipment are calculated in combination with the service time of the equipment.

Description

technical field [0001] The invention relates to the technical field of thermal power station operation, in particular to a method and system for evaluating the residual life of equipment. Background technique [0002] Due to the emergence of various new equipment in modern society, on the one hand, the production efficiency has been improved, and on the other hand, the labor intensity has been reduced, but there have also been some problems. Since most of the equipment is automatically controlled, the safety and reliability of the equipment is the top priority. heavy. [0003] Equipment reliability is an important guarantee for the safe production of thermal power generating units. Therefore, in the whole life cycle of the equipment, it is of great significance to the production and operation of the power plant to realize the optimal balance between the reliability and economy of the unit through the management optimization of the equipment. Remaining useful life (RUL) is ...

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Problems solved by technology

[0004] Equipment status assessment plays an important role in bidding transactions in the electricity market. In the past, equipment status assessment mainly considered the safety of equipment, and the safety threshold was mostly a static indicator, ignoring the parameter changes in the actual operating conditions of the equipment, and the evaluation system was relatively simple.

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