Denitration efficiency calculation method applied to on-site actual situation
A technology based on denitrification efficiency and actual conditions, applied in separation methods, chemical instruments and methods, gas treatment, etc., can solve the problems of few on-site factors, simple detection standards, etc., and achieve simple methods, easy implementation, accurate and scientific comprehensive denitrification efficiency Effect
Inactive Publication Date: 2017-09-08
STATE GRID TIANJIN ELECTRIC POWER +1
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However, the testing standards at this stage are too simple, and few on-site factors are considered
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[0016] The following describes the embodiments of the present invention in further detail: It should be emphasized that the embodiments described in the present invention are illustrative rather than restrictive. Therefore, the present invention is not limited to the embodiments described in the specific implementations. Other implementation manners obtained by those skilled in the art according to the technical solution of the present invention also fall within the protection scope of the present invention.
[0017] A method for calculating denitrification efficiency applied to actual conditions on site, the method includes the following steps:
[0018] (1) The calculation formula of the comprehensive denitrification efficiency η of the boiler is as follows:
[0019]
[0020] v 1 , V 2 , V 3 ,...V n ——The measured average flow velocity of flue gas at the denitrification outlet under different conditions of coal burning under the same load of the boiler, m / s;
[0021] η 1 , Η 2 , Η 3 ...
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The invention relates to a denitration efficiency calculation method applied to an on-site actual situation. The denitration efficiency calculation method comprises the following steps: (1) calculating comprehensive denitration efficiency eta according to a formula (described in the specification), wherein the formula considers the actually measured average smoke flow velocity of a denitration outlet under the condition that boiler load is the same and fuel coal is different as well as the actually measured denitration efficiency; and (2) according to the numerical value of the comprehensive denitration efficiency eta of a boiler, comprehensively judging the superiority and inferiority of a denitration system of the boiler. The denitration efficiency calculation method provided by the invention has the advantages that the smoke flow velocity is added as a factor participating in calculation, the comprehensive denitration efficiency obtained through calculation is more accurate and scientific, and the method is more consistent with the actual operational condition of equipment, has greater guiding significance on the actual operation of the denitration system of the boiler and is significant on discharge reduction and efficiency improvement of the actually operating boiler.
Description
Technical field [0001] The invention belongs to the technical field of engineering measurement, in particular to a calculation method of denitration efficiency applied to actual conditions on site. Background technique [0002] With the increasing emphasis on environmental protection and related industries in my country, the identification and testing methods of environmental protection equipment have been greatly improved. Among them, there are corresponding standards and specifications for the detection technology of boiler flue gas desulfurization and denitration equipment. However, the current testing standards have the problem of being too simple, and fewer on-site factors are considered. Among them, there is still a lot of research space for the calculation method of the denitration efficiency of the boiler denitration system. [0003] In the actual use of the boiler denitration system on site, the boiler itself will change greatly when using different coals. The flue gas fl...
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CPCB01D53/56B01D2258/0283
Inventor 边疆林琳周连升刘新利甘智勇王桂林周义刚王森薛泽海王麟李丛林赵越艾邓鑫
Owner STATE GRID TIANJIN ELECTRIC POWER