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哪些气体会造成新莆京www483net除尘布袋腐蚀?

文章发布: 发表时间: 2017-05-19 10:56:14

这些年,大气污染防治导致各行业重视。除尘布袋发作腐蚀往往是由三种气体形成,这篇文章总结了以下三种气领会形成新莆京www483net除尘布袋的腐蚀。
Over the years, air pollution control has led to industry attention. Dust bag attack corrosion is often formed by three kinds of gas, this article summarizes the following three kinds of gas understanding, forming environmental protection dust removal equipment, dust bag corrosion.
1、强氧化剂:例如新莆京www483net在160℃工作时,遇到氧含量超支时(>12%),很多的氧能够进犯PPS分子中的S键并与之联系。反响的结果是:PPS纤维变为深色且变脆,强度下降。有时你会发现,露出于阳光下的PPS纤维布袋外表色彩会成为咖啡色。假如长时间运转不予处理,易形成纤维强力下降,导致除尘布袋因强力下降而破损。空气中富含21%的氧气和79%的氮气(体积比)。在温度不高时,氮气很稳定,可是高温会使氮分子链断裂并与氧气反响形成NO和NO2,NO能够不过多考虑,但NO2是很强的氧化剂并且能氧化大多数用于过滤的纤维。氧化剂有氮氧化物、硫化氢、氨、氯等。在技术和设备上加强操控能够削减氧化腐蚀。
1. Strong oxidizing agents: for example, when environmental protection dust removal equipment is operated at 160 DEG C, when oxygen content overruns (>12%) are encountered, many oxygen can invade the S bonds in PPS molecules and contact them. The result of the reaction is that the PPS fiber becomes dark and brittle, and its strength decreases. Sometimes you'll notice that PPS fabric bags exposed to the sun look like coffee. If the operation for a long time without treatment, easy to form a strong drop in fiber, resulting in dust bags due to a drop in strength and damage. The air is rich in 21% oxygen and 79% nitrogen (volume ratio). In high temperature, nitrogen is stable, but the high temperature will make the nitrogen molecular chain cleavage and the formation of NO and NO2 and oxygen reaction, NO can be considered too much, but NO2 is a strong oxidant and can be used to filter the most oxidized fiber. Oxidants are nitrogen oxides, hydrogen sulfide, ammonia, chlorine and so on. Increased handling on technology and equipment can reduce oxidation corrosion.
2、酸性气体:多出如今运用高温滤料工况中,以硫化物为主。高温烟气中假如含酸性气体较多,建议运用耐酸较好的除尘布袋。假如选用一般的除尘布袋,含酸性烟气会腐蚀除尘布袋内的纤维结构,导致除尘布袋强力下降终究破损。破损痕迹由外向内。下降温度能够削减酸性气体对除尘布袋的腐蚀。酸性气体有二氧化硫、三氧化硫、硫化氢、氯化氢、氟化氢等。
2, acidic gas: more than the use of high temperature filter medium, the main sulfide. High temperature smoke, if it contains more acidic gas, it is recommended to use a better acid dust bag. If you choose the general dust bag, containing acid smoke will corrode the dust bag fabric structure, leading to dust bag strength decline, eventually damaged. The damage marks are from outside to inside. The downward temperature can reduce the corrosion of the acid gas to the dust bag. Acid gases are sulfur dioxide, sulfur dioxide, hydrogen sulfide, hydrogen chloride, hydrogen fluoride, etc., three.
3、碱性气体:多出如今富含氨气的工况,以氨气为主。破损和酸腐蚀类是,下降温度能够削减碱性气体对新莆京www483net的腐蚀。
3, alkaline gas: more than now rich in ammonia conditions, mainly ammonia. Breakage and acid corrosion are the lowering temperatures that can reduce the corrosion of alkaline gas to environmental cleaning equipment.

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