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标题：Design of Reheater for Superheated Steam in Water Tube Boiler
本地全文：下载
作者：Vinu V T ; Javare Gowda ; Dr S Sankar 等
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2017
卷号：6
期号：6
页码：11525
DOI：10.15680/IJIRSET.2017.0606065
出版社：S&S Publications
摘要：Boiler, also known as steam generator, is a closed vessel in which water is converted into steam abovethe atmospheric pressure by the application of heat. The steam generating unit is defined as "A combination ofapparatus for producing, recovering heat together with the apparatus for transferring the heat.,A water tube boiler is atype of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace creatinghot gases which heats water in the steam generating tubes. In this project water tube boiler is kept under study andproblem of steam venting is identified. A system is to be developed in order to avoid the situation by heating the steamexternally.33 tone/ hour capacity water tube boiler is kept under study. As per the design 24 tone/hour saturated steamand 9 tone/hour superheated steam is produced. The pressure conditions are 25 bar and 19 bar respectively. Thetemperature of saturated steam is 225℃ and superheated steam is 330℃. The correct temperature of superheated steamis maintained only when the load conditions (24:9) are satisfied. When the demand of saturated steam is reducedsuperheated steam doesn’t get correct temperature. Presently in this situation in order to maintain correct temperatureof superheated steam some quantity of saturated steam is vented out. When this situation occurs temperature ofsuperheated steam is reduced to 250℃ . Average 4 to 5 tone steam is vented in an hour. Cost of steam is aroundRs3500/ tone, In order to avoid the situation of steam venting and to attain the proper temperature of superheated steama reheater for superheated steam is designed and it is analyzed using ANSYS software. Also study about boilers isconducted. From the ANSYS analysis get the output temperature of steam is 340℃ , which satisfies our demand. Andfrom the cost estimation it is proved that the system is economical.
关键词：Text detection; Boiler; Reheater; Design; superheated steam