临海玻璃钢除雾器的安装:
除雾器湿法脱硫工艺上对吸收设备提出除雾的要求,被净化的气体在离开吸收塔之前要除雾。
除雾器系统由临海玻璃钢除雾器本体及冲洗系统组成。具体为二级除雾器本体、冲洗水管道、喷嘴、支撑架、支撑梁及相关连接、固定、密封件等组成。
临海玻璃钢除雾器故障对策
除雾器制定故障对策的目的是要把前面所述的五个故障要因作为基本点加以彻底清除。除雾器为此必须根据5个要因各自的特性制定出有效的手段。
解决的方法分为两类。一类是齐备基本条件、齐备使用条件、复原劣化。这种方法对过去或现在发生的故障不作原因追究,而是分别从齐备基本条件、齐备使用条件和复原劣化这3个方面出发研究设备本来的应有状态,并恢复其应有的状态。这种方法称作设计(构思)解决法。要恢复设备的应有状态,需要相应的技能(基本技能)配合。基本技能的学习和掌握,应在实践中进行为有效,即称之为岗位成才。
通过对上述三个项目的恢复,相当多的故障得到排除,但是对于设备设计上的弱点和固有技能的缺乏,用上述方法则行不通。对付这两个原因,应对发生的故障现象分别研究其原因,采取分析性的个别对策来解决。采取这类方法时必须正确捕捉现象,严格认真地分析,经过1~3次的要因研究,真正抓住设备在设计上的弱点和对技能的要求。然后推进个别对策,许多要因就会随着应有状态的实现而得到稳定,使真正原因容易发现和掌握,从而使采取的措施能直接发挥效果。在应有状态的设定中,如有模糊不清的部分,除雾器也可以通过个别对策的完善得到弥补。
Mist eliminator Blade spacing
The size of blade spacing has great influence on defrosting efficiency of mist eliminator. With the increase of blade spacing, the efficiency of mist removal is reduced.
The increase of the inter plate distance makes the particle size in the channel larger, and the velocity direction of the air flow tends to be slow, which makes the particle to follow the air flow better, and is easy to flow out of the blade channel with the air flow and not be captured, so the effect of mist removal is reduced. The selection of mist eliminator blade spacing is very important for ensuring the fog removal efficiency and maintaining the stable operation of fog removal system. Large blade spacing, low mist removal efficiency and serious water flue gas lead to the failure of the induced draft fan and heat exchanger, resulting in the abnormal shutdown of the whole system. When the blade spacing is too small, the efficiency of external energy consumption is reduced, and scaling and blockage on the blades will cause the whole system to be shut down. The blade spacing was selected according to the comprehensive characteristics of flue gas characteristics (velocity, SO2 content, dust concentration with water load), absorption and utilization rate, and leaf structure. At present, the spacing between the blades of the demister commonly used in the desulfurization system is between 25-40.
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