Energy efficiency assessment model and method for boiler system

Abstract

The invention relates to an energy efficiency assessment model and an energy efficiency assessment method for a boiler system. The method comprises the following specific steps of: (1) collecting basic data of the boiler system; (2) inspecting economic running of a boiler, and putting forward an economic running employee evaluation form of the boiler; and (3) performing energy efficiency assessment on the boiler system: initially establishing an energy efficiency index system of the boiler system; performing data preprocessing on the initially-established energy efficiency index system, wherein data preprocessing comprises type uniformization of an evaluation index, non-dimensional normalization and optimal filtration; computing the value of a secondary index in the energy efficiency index system; computing weights of a primary index and the secondary index by applying a hierarchical comprehensive evaluation model, and completing objective assessment of the primary index based on G1 group judgment and subjective assessment of the secondary index based on an entropy method; and completing determination of the comprehensive weight of the hierarchical comprehensive evaluation model by adopting organic combination of expert experience and subjective data, establishing a mathematical model of comprehensive energy efficiency evaluation of the boiler system, and quantifying the evaluation result of the boiler system.

Description

technical field [0001] The invention relates to the field of boiler systems, in particular to an energy efficiency evaluation method for a boiler system, which takes the boiler and its complete set of auxiliary equipment as an overall energy consumption system, and performs energy efficiency evaluation based on a hierarchical comprehensive evaluation model. Energy Efficiency Assessment of Small Industrial Boiler Systems. Background technique [0002] As far as the applicant knows, the status quo of China's industrial boilers is: mainly coal-fired, large in volume and wide in area, small in capacity per unit, low in operating parameters, and low in average thermal efficiency. In 2010, the total coal consumption of China's industrial boilers was about 600 million tons, accounting for 1 / 5 of China's total coal consumption. It can be seen that China's industrial boilers have great energy-saving potential and energy-saving space. [0003] In recent years, methods for improving t...

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Problems solved by technology

[0004] The applicant found in the research that energy-consuming equipment such as fuel crushers, coal feeders, boiler induced draft fans, and blower fans in the boiler did not take effective measures to save their own energy consumption and achieve economical operation on the basis of auxiliary boiler combustion

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