摘要：在工业生产中，利用燃料燃烧产生的热量，或者将电能转化成热量对工件和物料进行加热的设备称为工业炉。工业炉的技术进步对工业发展起到十分重要的因素，炉子的结构类型，加热工艺，

热工控制和炉内气氛都直接影响着加工后的产品质量。21世纪以来，我国的能源消耗量不断增加。能源短缺问题日益严重，严重制约这我国经济发展。而工业炉一直是能耗大户。因此对于工业炉的节能减排工作就显得尤为重要。本文主要介绍了35吨普碳钢连续加热炉的设计，主要包括燃料与燃烧的计算；钢坯加热的计算；炉膛尺寸的确定；炉子热平衡表的编制；炉底水冷构件的设计；炉体砌筑材料和尺寸的确定、钢架结构的确定等等；炉子燃料量的确定；换热器的设计、管道系统的设计；排烟系统设计。

关键词：普碳钢连续加热炉；热量；温度

Design of Pusher Type Continuous Reheating Furnace

Abstract: In industrial production, the use of heat generated by combustion of fuel, or the conversion of electrical energy into heat, for heating workpieces and materials is called an industrial furnace. The technological progress of industrial furnace plays a very important factor in the development of industry. The structure type, heating process, thermal control and atmosphere in the furnace have a direct influence on the quality of the products after processing. Since twenty-first Century, energy consumption in China has been increasing. The problem of energy shortage is becoming more and more serious, which  seriously restricts the economic development of our country. And the industrial furnace has been a big energy consumer. Therefore, for industrial furnace energy conservation and emission reduction work is particularly important. This paper mainly introduces the design of 35 ton continuous heating furnace for universal carbon steel, mainly including calculation of fuel and combustion, calculation of the heating of steel billet, determination of furnace size, compilation of furnace heat balance table, design of water cooled bottom component of furnace bottom, determination of material and size of furnace body and determination of steel frame structure, and so on; the fuel quantity of furnace is true Heat exchanger design, piping system design, smoke exhaust system design.

KeyWords：pusher type continuous reheating furnace；energy；temperature

目录

摘要 1

Abstract 1

1绪论 1

1.1 加热炉概念 1

1.2 加热炉分类 1

1.4炉子冷却系统 4

1.5燃烧装置 4

1.6炉子的绩效评估 4

1.7 设计的目的和意义 6

1.8国内外研究现状 7

2燃料燃烧计算 8

2.1已知条件 8

2.2空气需要量和燃烧产物量及其成分的计算 8

2.3燃烧产物密度计算 10

2.4理论燃烧温度计算 10

3加热时间的计算 12

3.1炉温制度和炉温曲线 12

3.2炉膛初步尺寸的确定 13

3.3金属加热时间计算： 13

4炉子主要结构设计 19

4.1炉长（采用端出料） 19

4.2炉宽 19

4.3炉型高度和炉型曲线 19

4.4炉底面积有效利用率 20

4.5炉底强度 20

5热平衡计算及燃料消耗量的确定 21

5.1热量收入 21

5.2热量支出项目 21

5.3燃料消耗量 29

5.4炉子指标 29

6空气换热器设计计算 30

6.1已知数据 30

6.2设计计算 31

7烟道阻力损失 37

7.1已知条件 37

7.2烟道断面尺寸确定 37

7.3计算各段烟气温度 38

7.4计算各段烟气流速 38

7.5阻力损失计算 39

8烟囱 42

8.1烟囱出口直径 42

8.2烟囱平均直径 42

8.3烟囱中烟气的平均温度 42

8.4烟气在烟囱中的摩擦阻力系数 42

8.5烟囱计算高度 43

9煤气烧嘴的选用 44

9.1选用依据 44

9.2烧嘴布置和烧嘴选型 44