Method for acquiring target values of boiler optimized operation economic parameters

Abstract

The invention discloses a method for acquiring target values of boiler optimized operation economic parameters. The method comprises the following steps of: establishing a boiler combustion characteristic neural network mathematical model by using a neural network technology according to boiler variable coal type combustion optimized operation working condition data; according to the boiler combustion characteristic neural network mathematical model, optimizing air distribution and coal distribution combustion operation parameters of each historic working condition of a boiler by using an optimized combination method of a thermal test algorithm and a genetic algorithm and by taking the maximization of boiler comprehensive efficiency as an optimization target; comparing the air distribution and coal distribution combustion operation parameters of each historic working condition with corresponding optimized values, determining an optimized working condition, and establishing a target value calculation model for boiler main steam parameters, auxiliary engine power consumption, smoke exhaust temperature, fume oxygen content and fly-ash carbon content by taking data of a historic working condition which is marked as the optimized working condition as a sample and by using the neural network technology; and calculating a boiler main steam parameter target value, an auxiliary engine power consumption target value, a smoke exhaust temperature target value and a fume oxygen content target value under the conditions of different loads and different coals by using the obtained target value calculation model.

Description

[0001] technical field [0002] The invention relates to a method for obtaining a target value of an economic parameter for optimal operation of a boiler, belonging to the technical field of boiler operation. Background technique [0003] Energy loss economic analysis is an important technique for boiler operation optimization. Energy loss economic analysis is to compare some important operating parameters of the boiler with their target values ​​(optimum values) under each operating condition of the boiler, and calculate the energy loss caused by each operating parameter not reaching its target value. provided to the operator. According to the energy loss of each operating parameter, the operator can identify the main reason for the decline in the economic performance of the boiler, and then take measures to optimize the operation of the boiler. Therefore, the key of economic analysis is to determine the target value of each economic operation parameter of the boiler....

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a method for obtaining the target value of economic parameters for boiler optimization operation, so as to solve the unreasonable determination of the target value of economic analysis parameters for boiler energy loss at present, which affects the boiler Rationality and reliability of economic analysis results

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