Компиляция данных по оптимизации работы трубчатых печей

Abstract

A great number of processing hydrocarbon raw material units operated at enterprises have heat exchangers of different designs. A significant share among them comes to the special heat exchangers that use the heat of exhaust gases when burning liquid and gaseous fuels – tubular furnaces. Depending on the specifics and type of fuel used, the furnaces differ both in design and in operational parameters. At AT units, AVT units, and gasoline secondary distillation units, HFC furnaces are used to heat hydrocarbon media and are characterized by heating temperatures from 300C° to 500°C. In the units of technological processes of pyrolysis, conversion of hydrocarbon gases, etc., simultaneously with heating and/or overheating of the raw materials, furnaces are used as reactors. The effective use of such furnaces is possible only if there are used engineering methods predicting changes in the technological flow, created on the basis of reliable analytical and experimental materials. The available data is insufficient to develop measures 
 to improve the efficiency and reliability of these units. There are discussed the results of analytical studying the optimizing the operation of tubular furnaces, identified the main disadvantages during their operation, determined methods for assessing the wear of the elements of the apparatus depending on the technological modes (temperature, pressure, medium) and the material of execution in the process of technical diagnostics of equipment to ensure industrial safety. The issues of the influence of design features and of organizing the combustion process of nozzles on the quality indicators of tubular furnaces are considered. The main directions of increasing the energy efficiency of radiant and convection chambers of tubular furnaces are defined.