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陶瓷蓄热体 - 蓄热性能下降的缘由
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陶瓷蓄热体 - 蓄热性能下降的缘由

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  • 宣布时间:2022-01-11 11:11
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陶瓷蓄热体 - 蓄热性能下降的缘由

  • 分类:新闻资讯
  • 作者:
  • 来源:
  • 宣布时间:2022-01-11 11:11
  • 浏览量:

蓄热体是一个要害部件。但从实际应用来看 ,陶瓷蓄热体寿命往往不尽人意 ,原因是多方面的。陶瓷蓄热体蓄热性能下降体现在以下方面: 1.破损。烟气与空气对蓄热体重复冲洗 ,导致福建陶瓷蓄热体的温度泛起频繁变革 ,关于蓄热箱中某一点来讲 ,其温度要周期性地快速升高和降低100—200℃ ,这种热攻击对蓄热体质料有一定的破坏作用。其耐急冷急热性能往往欠好 ,容易泛起破损现象。 2.烧损。多室(两室)蓄热式加热炉中 ,由于空气和天燃气的喷嘴很大 ,空气、天燃气气流混淆效果不睬想 ,会导致不完全燃烧。当剩余的空气和天燃气进入蓄热体狭小的空间内混淆 ,导致二次燃烧从而损坏蓄热体。 3.熔化软化。因烟气中含有氧化铁等杂质 ,不绝与蓄热体接触 ,在燃烧室高温条件下 ,形成低热熔物 ,降低质料的软熔温度。后面造成软熔质料梗塞气流通道 ,造成气流欠亨。

蓄热体是一个要害部件。但从实际应用来看 ,陶瓷蓄热体寿命往往不尽人意 ,原因是多方面的。

陶瓷蓄热体蓄热性能下降体现在以下方面:

 

1.破损。烟气与空气对蓄热体重复冲洗 ,导致福建陶瓷蓄热体的温度泛起频繁变革 ,关于蓄热箱中某一点来讲 ,其温度要周期性地快速升高和降低100—200℃ ,这种热攻击对蓄热体质料有一定的破坏作用。其耐急冷急热性能往往欠好 ,容易泛起破损现象。

 

2.烧损。多室(两室)蓄热式加热炉中 ,由于空气和天燃气的喷嘴很大 ,空气、天燃气气流混淆效果不睬想 ,会导致不完全燃烧。当剩余的空气和天燃气进入蓄热体狭小的空间内混淆 ,导致二次燃烧从而损坏蓄热体。

 

3.熔化软化。因烟气中含有氧化铁等杂质 ,不绝与蓄热体接触 ,在燃烧室高温条件下 ,形成低热熔物 ,降低质料的软熔温度。后面造成软熔质料梗塞气流通道 ,造成气流欠亨。

 

The regenerator is a key component. However, from the practical point of view, the life of ceramic regenerators is often unsatisfactory, for a variety of reasons.

The thermal storage performance of ceramic regenerators is reduced in the following aspects:

 

1. Damaged. Flue gas and air repeatedly wash the regenerator, causing frequent changes in the temperature of the Fujian ceramic regenerator. For a certain point in the regenerator, the temperature should be periodically increased and lowered 100-200 °C periodically. The thermal shock has a certain destructive effect on the heat storage material. Its resistance to quenching and rapid heat is often poor, and it is prone to breakage.

 

2. Burning. In a multi-chamber (two-chamber) regenerative heating furnace, due to the large nozzles of air and natural gas, the mixing effect of air and natural gas airflow is not ideal, resulting in incomplete combustion. When the remaining air and natural gas enter the space where the regenerator is narrow, the secondary combustion causes secondary combustion to damage the regenerator.

 

3. Melt and soften. Because the flue gas contains impurities such as iron oxide, it continuously contacts the regenerator, and under the high temperature condition of the combustion chamber, a low hot melt is formed to lower the reflow temperature of the material. The back causes the reflow material to block the airflow path, causing the airflow to fail.

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