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Fuzzy Set in boiler slagging characteristics JUDGEMENT

# 183; no = (0.4890.5110). The same way the other three samples can be obtained the comprehensive evaluation value: slag, the ship (0.1450.1930.662); steering room gray,[link widoczny dla zalogowanych], = (0.O480.2220.73o); dust, diarrhea (0 .2020.1520.646). Available by the principle of maximum membership of the evaluation object identification results (see Table 5). In addition to a moderate degree of slagging coal slurry, the other three samples are more severe slagging tendency,[link widoczny dla zalogowanych], especially in steering room ash, slag tends to be more serious. Table 54 Comprehensive Evaluation of the results of three samples of fuzzy comprehensive evaluation model checking to verify the reliability of the model used in the evaluation of reliability, to carry out the following two aspects: First,[link widoczny dla zalogowanych], the model for the known extent of Longkou power slagging ¨ a coal-fired plants and other judges, and the results with the actual situation were to test the specific effects; the second is to change the model of the evaluation factors set, which uses four conventional slagging indices (a soft one thousand one hundred and eleven O 7 a O10 Power System Engineering Volume 2003 l9 temperature t2, silicon than G, alumina and base acid ratio than SiCh_/Al2O3 B / A) as a factor set (referred to as the four-factor method), also used in 11 Longkou Power Plant slagging properties of evaluation, and then with the actual slagging situation in order to further compare and validate the proposed five-factor model of credibility. (1) The model is used Longkou coal power plants in 11 of Slagging Propensity (all coal samples and the actual value of the conventional indicators of slagging in Table 6),[link widoczny dla zalogowanych], and evaluation results with the actual situation of the control slagging . (2) In order to further validate the established model of the five factors of the specific evaluation results, remove the evaluation factors set the \set, the same one used in Longkou Power Plant etc l1 slagging of discrimination, and with the actual slagging comparison (see Table 7). Table 7 shows the construction of this \In addition, with the \Because of the \The actual extent of such obvious slagging serious discrimination, the model than the \Table 611 conventional coal slagging index value, evaluation results and samples of the actual slagging the \Composite Index will be made into the evaluation factors set R model is reasonable, and its predictive accuracy than the previous four-factor model of higher accuracy can be further improved discrimination. (2) by the fuzzy comprehensive evaluation and fuzzy pattern recognition results are basically the same, the difference appears only in the CWS JUDGEMENT: The former CWS identified as \as \(3) Fuzzy pattern recognition and fuzzy comprehensive evaluation results of two methods of identification, the four samples of coal boiler slagging tendency is: coal-water slurry medium (Shaopian light) levels slagging; slag, steering Room ash and dust for the more severe slagging, especially turning the extent of slagging ash chamber may be more serious. This is probably because the last three samples were higher in the Fe203 (see Table 1), pyrite segregation occurred, and in the gray sediments selectively enriched in the boiler heating surface due. Looking at the results of 4 samples of discrimination, the coal boiler slagging tendency may be more serious, so the design and operation process should be high priority and to take certain measures to prevent or mitigate. 【1】 mouth Reference PROCEEDINGS OF THE FAN Jian, et al. Boiler and heat exchanger fouling, slagging, abrasion and corrosion prevention principle and calculation 【M】. Beijing: Science Press, 1994. 【2】 Li Tianrong. Melting characteristics of coal ash and boiler slag m. Experimental Study North China Electric Power Technology, 1995 (7) :30-32. 【3】 Li Hongxing, Wang Pei Zhuang. 【M】 fuzzy mathematics. Beijing: National Defence Industry Press,[link widoczny dla zalogowanych], 1994. 【4】 Ping Baoan, Caesar should be Paul. Conventional coal-fired boiler slagging fuzzy comprehensive evaluation index m. Boiler Technology, 1996 (5) :13-16. 【5】 Guo Jia, Han had before. Power slagging properties of fuzzy pattern recognition m. Thermal Power Generation, 1994 (2): 4 ~ 6. Editor: Xiao Min
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