Comprehensive evaluation system of industrial boiler energy saving scheme and construction method thereof

Abstract

The invention provides a comprehensive evaluation system of an industrial boiler energy saving scheme and a construction method thereof. The comprehensive evaluation system comprises three phases which are an early stage, a medium stage and a later stage, wherein in the early stage, indexes are established and weight distribution is performed; in the medium stage, fuzzy comprehensive evaluation of the step-by-step indexes is performed and a high-grade comprehensive evaluation result is output; and in the later stage, comprehensive evaluation system software is used to output an assessment result. By using the set of comprehensive and integrated evaluation system, an industrial boiler energy saving scheme is comprehensively evaluated from aspects of safety, energy saving, economy, generalizability and the like. An existing limitation of qualitative evaluation from a single aspect of energy saving is broken through, and a multi-element evaluation index model in which qualitative and quantitative evaluations are combined, a technology and a market are combined, and safety and energy saving are combined is formed. Through research, an evaluation standard of each index required by the evaluation system is determined; for different types of technologies or products, quantification is performed; human factors which influence the evaluation are reduced to a minimum so that an energy saving technology evaluation system becomes objective, scientific and reasonable; and sound development of industrial boiler energy saving technology industrialization is promoted.

Description

technical field [0001] The invention belongs to the technical field of energy saving and environmental protection, and in particular relates to a comprehensive evaluation system of an industrial boiler energy saving scheme and a construction method thereof. Background technique [0002] As a large energy consumer, boilers consume a huge amount of fuel every year. As of the end of 2015, the statistical analysis results of my country's boiler quantity and energy use by the China Special Equipment Inspection and Research Institute show that the total number of boilers in my country is 579,200, of which 565,300 are industrial boilers, and boilers below 10t / h account for about 80% of the total. , coal-fired boilers accounted for about 70% of the total number. Combined with the total energy consumption in my country, the annual coal consumption of industrial boilers in my country accounts for 15% of the national coal consumption, that is, the annual consumption of standard coal is...

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Problems solved by technology

Although the above research and design indicators for the evaluation of energy utilization efficiency in countries or regions are relatively comprehensive, factors such as technological level, economic structure, and social concepts have been considered comprehensively, and various evaluation indicators have been comprehensively and systematically constructed from economic, social, and environmental perspectives. However, there are still the following problems when this evaluation system is directly applied to the comprehensive evaluation of boiler energy-saving technology (products): (1) The evaluation objects vary greatly from the energy utilization efficiency to the pros and cons of boiler energy-saving technology products. , the British energy evaluation index system is more aimed at factors such as the national energy efficiency consumption base, etc., while the energy efficiency evaluation index system established by the World Energy Council is more concerned with individual details such as the economics and marketability of a certain technology Consider; (2) The energy efficiency evaluation methods used in countries or regions are relatively single, mostly quantitative and comparative analysis of a specific factor, and current relatively general comprehensive evaluation methods such as analytic hierarchy process and fuzzy algorithm are not used; (3) Countries or regions The original intention of regional energy efficiency evaluation research is mostly to reasonably evaluate domestic or international energy utilization and sustainable development. Therefore, the national and industry-wide energy efficiency utilization level, unit energy consumption intensity, etc. The scoring and comparative output requirements run counter to

However, in the "Guidelines for Energy Efficiency Evaluation of Industrial Boiler Systems", there are many basic research parameters for industrial boilers, which are helpful for evaluating the energy-saving effects of industrial boiler energy-saving technologies or products. There is a lack of guiding evaluation indicators in the evaluation of product economy and marketability. In addition, this method also has the following problems: (1) In order to clearly stipulate specific evaluation methods, standards, software and models in the guideline, only the evaluation It can be stated in the report

Therefore, different evaluation results may be obtained for the same boiler based on different testing methods and evaluation methods. In particular, the accuracy of the evaluation methods and measurement standards used in the current industrial boiler energy-saving technology evaluation needs further discussion. Some experts who have long been engaged in thermal testing Experts once pointed out that most of the corresponding test conditions in the current "GB / T10180-2003 Industrial Boiler Thermal Performance Test Regulations" are difficult to meet; (2) The evaluation focuses on the energy efficiency of industrial boilers, and does not use the comprehensive evaluation of power plant boilers The idea of ​​grading and weighting the indicators in the index, so the evaluation or rating is only based on the special test data as the evaluation data, and it is impossible to achieve the comprehensive and accurate evaluation required in the current comprehensive evaluation.

[0015] It can be seen that energy-saving technology continues to develop, and various energy-saving products have been developed successively, with a wide variety, but each unit holds its own opinion on the characteristics of energy-saving solutions for coal-fired industrial boilers, and the depth of research is mostly limited to the development test stage or the qualitative verification stage In the research conclusion, there are many qualitative indicators, few quantitative indicators, many technical indicators, few economic indicators, many specific indicators, and few universal indicators. There is no unified evaluation method for the applicability, economy and promotion of industrial boiler energy saving schemes. Make a comprehensive evaluation

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