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1、豫兴顶燃式热风炉 Catenary Dome Shaftless Hot Air Stove (CDSS),内燃式热风炉曾经是世界上最常见的一种热风炉的形式。蓄热室和燃烧室平行布局在同一个炉壳内。 这种热风炉结 构最大的缺陷在于这种燃烧室的布局和结构，会频繁出现 需要维修的故障。其六大缺陷是：由于燃烧室和蓄热室之间的温差效应： 燃烧室和格子砖蓄热室会串通发生“短路” 。这会导致一氧化碳溢出并降低热风温度; 燃烧室与蓄热室之间的隔墙弯曲下倾(香蕉效应)，使得燃烧室和蓄热室相互损坏；另外： 燃烧室的温度高，会使耐火材料发生蠕变，导致燃烧室砖体、热风管拱门和热风炉燃烧器容易变形和受损； 由于燃烧室位
2、于侧边，导致燃烧产物从拱顶沿着格子砖蓄热室向下的分布不均匀，达到15%； 在送风和燃烧期间，温度会有波动，将导致隔墙耐火材料出现裂损； 脉冲燃烧。这种燃烧与本身高度过高的燃烧室的高频震动有关。 长时间运行情况下，最高热风温度可达 1200C。,内燃式热风炉 Internal combustion hot air stove,Internal combustion hot air stove was once most common kind of hot air stove in the world. Regenerator chamber and combustion chamber are
3、 parallel layout in the same stove shell. The biggest defect is the combustion chamber. This structure require frequent repair stoppages . There are six defects:“Short circuit” or direct transfer of gases happens between combustion chamber and checker chamber. This causes outflow of non-burnt gases
4、into atmosphere and the reduction of hot blast temperature; The combustion chamber slope towards checker (“banana”effect) leads to damage of both combustions chamber and checker; Deformation and demolition of the combustion chamber brickwork, arches of hot blast connecting pipes and stove burner res
5、ulting from the creep of refractory materials Uneven distribution of waste gas along the checker amounts to 15% due to the lateral position of combustion chamber. refractory materials cracking on the conditions of thermal stability under abrupt fluctuation in temperature during change over between b
6、last and gas periods; Pulsating combustion. It connected with High-frequency vibrations of over-height combustion chamber.,Internal combustion hot air stove,Maximal hot blast temperature under long-term operation is 1200C.,相对于内燃式风炉，外燃式热风炉最重要的 改进是把燃烧室外置。 The most considerable modernization of the hot
7、-air stoves with internal combustion chamber were the devices with external combustion chamber. 这种改进相对于内燃式热风炉也只消除了两个 缺陷： “短路”和“香蕉效应”。 This construction eliminates only two of the disadvantages:“ short circuit” and “banana effect”; 热风炉顶部构造相当复杂; The dome construction becomes more complex; 需要占用更多的空间; M
8、uch more space for location is required; 设备成本增加 30%-35%； The cost of these devices is 30-35% higher; 长期运行情况，最高热风温度为 1250C。 Maximal hot blast temperature under long-term operation is 1250C.,外燃式热风炉 Outer combustion hot air stove,豫兴顶燃式热风炉CDSS,去除热风炉的燃烧室，使煤气在热风炉顶部的燃烧系统内燃烧，则内外置燃烧室的主要缺陷也将随之消除-这就是顶燃式热风炉主要特点
9、。Remove the combustion chamber, and make the gas combustion in the combustion system on the top hot air stove, thus the main defect of combustion chamber will be eliminated - this is the main characteristic of the shaftless hot air stove.豫兴顶燃式热风炉（CDSS）是指一种具有悬链型拱顶、带有环形布置燃烧器的顶燃式热风炉。 The CDSS adopts Ca
10、tenary construction Dome Shaftless hot Stove, which has ring burner set the underpart of the dome.在拱顶的基础部分有一个环形预燃室。环形预燃室的底 部安装有几十个小型陶瓷燃烧器喷嘴。环形的煤气和空气收 集器位于炉壳内.The dome base has a ring prechamber . There are several tens of small size ceramic burners installed in the bottom part of the ring prechamber
11、. The ring gas and air collectors are located inside the shell.,长期运行情况，最高热风温度为 12001350C。 Maximal hot blast temperature under long-term operation is 12001350C.,豫兴顶燃式热风炉CDSS,豫兴顶燃式热风炉（CDSS）具有投资小、 风温高、运行稳定、节能环保、寿命长等特 点。 CDSS have small investment, high temperature blast, stable operation, energy-saving
12、 and environmental protection, long life, etc. features. 针对需要改造的内燃式热风炉，CDSS可以 不更换炉壳、不改动热风管系，直接将内燃 式热风炉改造成顶燃式热风炉。 As for internal-combustion hot air stove need modification , CDSS technology dont replace the stove shell, and no changes to the hot air piping system, directly transform internal-combust
13、ion hot air stove into shaftless hot air stove.,长期运行情况，最高热风温度为 12001350C。 Maximal hot blast temperature under long-term operation is 12001350C.,豫兴热风炉优势： CDSS advantages:1，煤气、空气垂直向上交错喷射，混合充分、燃烧完全； Gas, air vertical spout up, mixed completely by intervein spout, and getting combustion complete; 2，燃烧产物
14、均匀分布到蓄热体，明显提高蓄热体的利用率； The regenerator is heated equally, and enhance regenerator using rate;3，燃烧过程更加稳定，消除了燃烧震荡，使热风炉安运行全、稳定；The combustion process is more stable, and avoid the combustion vibration, and make hot stove safety, stability, high load operation;,火焰区,4，消除了燃烧过程产生回火的弊端，提高了热风炉操作运行的安全性； Avoid
15、efficiently the possibility of backfire during the combustion process, enhance the operation security of hot stove.5，有效地节省了热风炉的初投资；Save efficiently original invest of the hot stoves. 6，采用悬链线拱形结构的拱顶，提高了拱顶温 度，延长了热风炉的使用寿命； The dome adopts catenary construction toincrease the operational life span of ho
16、t stoves.,热风炉燃烧室流场的流函数的等值线显示图 The flow field flow function isoline visual chart of hot blast stove combustion chamber,豫兴热风炉优势CDSS advantages:,豫兴热风炉优势CDSS advantages:,气流垂直上喷燃烧室流场流函数等值线分布图 The flow field flow function isoline visual chart of the combustion chamber flow field with airflow vertical spouts up,内燃式改为豫兴顶燃式热风炉的第一方案结构图 The first solution of reforming the internal combustion hot air stove 左：内燃式热风炉原来的结构；右：热风炉改造结构的第一方案； Left: before reformation ； Right: after reformation ；,
