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首页> 外文期刊>Heat Transfer Engineering >The Conceptual Design of a Radiant Chamber and Preliminary Optimization of a Process Tubular Furnace
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The Conceptual Design of a Radiant Chamber and Preliminary Optimization of a Process Tubular Furnace

机译：辐射室的概念设计和工艺管式炉的初步优化

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摘要

The design procedure of a process tubular furnace (or fired heater) can generally be divided into three design stages: the preliminary design of furnace, a detailed thermal and hydraulic simulation of the furnace, and final design solution, and the mechanical solution of the furnace (stress analysis, drawings preparation, etc.). The first design stage (the preliminary design of the furnace and cost prediction) is usually connected with a proposal for the customer when only the basic process and furnace design data are usually known. In this design stage, it is appropriate for the furnace designer to not have much detail for a reliable design method. The procedure for the preliminary design of a radiant chamber is usually a main part of such a design method because the radiant chamber represents a basic and dominant part of the modern process tubular furnace. The conceptual (or preliminary) design of the radiant chamber makes up the main part of this process. The presented method is based on standard, time-tested design methods (e.g., the Lobo-Evans method and Belokon's method). It is shown how these standard global design methods can be (for common operating conditions) suitable, generalized, and simplified. It allows for the purpose of the conceptual radiant chamber design the arrangement of the basic heat transfer equation for the radiant chamber. The derived form of the heat transfer equation then allows one to obtain basic process and geometrical radiant chamber characteristics of the given furnace type (cylindrical, box, etc.) iteratively. A developed radiant chamber calculation connected with standard procedures for the design of the furnace convection parts and stack (together with cost predictions) is used, and the method for a quick preliminary evaluation of the influence of the main design and process furnace parameters (dimensions of radiant chamber and convection parts, average heat flux to radiant tubes, absorbed heat in radiant chamber and convection part of furnace, stack size, and fuel consumption) for the total costs was developed. It allows the optimization of the furnace from an investment, operating, or total cost point-of-view in the preliminary design stage of the furnace. The developed method can also be used for the effective solution of the furnace integration into the process. The application of the developed method is demonstrated through a case study—the optimum design of a furnace for a crude atmospheric distillation unit.
机译：工艺管式炉（或燃烧式加热器）的设计程序通常可分为三个设计阶段：炉子的初步设计，炉子的详细热力和水力模拟，最终设计方案以及炉子的机械方案。 （应力分析，图纸准备等）。当通常只知道基本过程和炉子设计数据时，通常将第一设计阶段（炉子的初步设计和成本预测）与给客户的建议联系起来。在这个设计阶段，对于炉子设计者来说，对于可靠的设计方法没有太多细节是合适的。辐射室的初步设计程序通常是这种设计方法的主要部分，因为辐射室代表了现代工艺管式炉的基本组成部分。辐射室的概念（或初步）设计构成了此过程的主要部分。提出的方法基于经过时间考验的标准设计方法（例如Lobo-Evans方法和Belokon方法）。展示了这些标准的全局设计方法如何（对于通用操作条件）合适，通用和简化。出于概念上的辐射室设计的目的，其允许辐射室的基本热传递方程式的布置。然后，传热方程的推导形式使人们可以迭代地获得给定炉型（圆柱形，箱形等）的基本过程和几何辐射室特性。使用与标准程序相结合的发达的辐射室计算来设计炉对流零件和烟囱（以及成本预测），并且该方法可用于快速初步评估主要设计和工艺炉参数的影响（尺寸辐射室和对流部分，到辐射管的平均热通量，辐射室和炉子对流部分中的吸收热量，烟囱尺寸和​​燃料消耗）按总成本开发。在炉子的初步设计阶段，它可以从投资，运营或总成本的角度优化炉子。所开发的方法还可以用于有效地解决将熔炉集成到工艺中的问题。通过案例研究证明了所开发方法的应用-粗常压蒸馏装置的熔炉的最佳设计。

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  • 来源
    《Heat Transfer Engineering》 |2006年第6期|p.50-57|共8页
  • 作者

    ZDENEK JEGLA;

  • 作者单位

    Institute of Process and Environmental Engineering, Brno University of Technology, Technicka 2, 616 69 Brno, Czech Republic;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 工业用热工设备;
  • 关键词

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