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详细信息
品牌：廊青 型号：ZBS 加工定制：是 材质：FRPP 网块厚度：200 mm 丝网型式：平板式 公称直径：180 mm 外形尺寸：200 mm For a highly efficient function in flue gas desulphurization plants (FGD) high-graded mist eliminators must be used. Separators from LangQing. working on the impingement principle fulfill these requirements concerning a very good separation grade, high availability and a long durability. The mist eliminator consists of well engineered, flow effective lamellas which are parallel arranged and passed through by the flue gas. The gas flow is deflected inside the mist eliminator elements and the contained droplets are separated from the stream. A liquid film is build up on the lamellas which is lead away by gravity. 为了烟气脱硫系统具有更好的性能，必须使用高等级的除雾器。 廊青公司生产的运用撞击法原理的除雾器能全部满足这些要求，它具有非常优异的分离等级，在线率和长期的耐用性。这种除雾器的设计非常优良。气流在通过这些平行布置的叶片中间并被影响。气体的流向在除雾器中偏离，携带的雾滴被从气流中分离。由于重力的作用在叶片的表面上会形成水膜。
The mist eliminator system consists of two stages: The first stage is the so called coarse eliminator and the second stage the fine eliminator.
除雾器系统有两级组成：下级的除雾器是所谓的粗除雾器，第二级的除雾器是精除雾器。
The liquid, that has to be separated, contains a great amount of solid particles. To avoid the set down of these solids on the lamellas and the clogging of the mist eliminator, the system must be cleaned in regular intervals. This will be done by the nozzle pipes of the spray system which are arranged up-and downstream of each stage. The spray system will be operated according to a given program and flush water onto the mist eliminator elements and rinse off the solid particles. With this procedure long operating times of the eliminator system between the inspection intervals can be reached.
必须被去除的液体中含有大量的固体颗粒。为了避免这些固体被积淀在叶片的表面从而形成结垢，系统必须被有规律的间断的清洁。清洁的工作由安装在每级除雾器上的向上和向下的带喷嘴的管子组成的冲洗系统完成。冲洗系统将按提供的程序运行，固体颗粒在叶片表面被冲洗掉。在检查间隔这种程序确保了除雾器系统的长期运行。
A proper operation of the mist eliminator system must be guaranteed by a appropriate design.
正确地设计将确保除雾器系统正确的运行。
This will be done for example by: 例如：
•Design of the lamella profile/除雾器叶片的设计
•Distance between the lamellas/叶片间的距离
•Range of flow velocity气体流速的范围
•Design of the spray system/冲洗系统的设计
•Nozzle type selection/喷嘴的选型
•Flow conditions/气流条件
•Installation situation/安装情况
•Consideration of the flow distribution/对流体分布的考虑
•Solid content within the gas flow and the suspension/气流和悬浮液中的固含量
•Wash water quality/冲洗水水质
All these parameters influence the operation of the total system and must be considered during engineering and design.
所有这些参数都会影响整个系统的运行，因此在设计和工程中被充分考虑。
The composition of the flushing water is of particular importance. The composites must not trigger any subsequent reaction in the mist eliminator which can, in turn, result in so called Hardscaling on the part of the deposits on the separator. Hardscaling are crystalline and hard particles which can not be flushed away by the spray system.
冲洗水的成分非常的重要。这些成分必须不会在除雾器中造成再反应，例如在除雾器上的部分沉淀物中造成所谓的硬结垢。硬结垢由一些不能被冲洗系统冲走结晶和硬的颗粒组成。
Only soluble deposits, which stay after the absorber reaction in the gas flow, can be rinsed. Whenever it comes to Hardscaling a failure of the mist eliminator can be the result.
只有那些在气体中的可溶的沉淀物才能被冲洗掉。当产生硬结垢时，除雾器将形成故障。
Trouble-free mist eliminator operation cannot thus be seen in isolation but must, rather, be regarded as an integral part of the complete separator system. The coordination of the additional components and process control is to a considerable extent a prerequisite for faultless mist eliminator operation.
正确和无故障的使用操作除雾器不能被孤立的看待，而必须把它作为整个除雾器系统的一部分。和其他部件和工艺控制的配合是保证除雾器无错误是操作的首要条件。
1.2 Function功能
The design of the mist eliminator system is called FGD-S/FH1 As mentioned before the mist eliminator is an impingement separator, designed for vertical flow（level flow）. By the flow effective design of the lamellas the droplets are separated from the gas flow by their own inertia.
这种设计的除雾器系统被称为 FGD-S/FH1。正如前面所说这种除雾器是冲击法分离器，设计用于垂直气流(水平气流)。气体在叶片的影响下，液滴由于它们本身的内力作用下，从气流中分离出来。
The lamellas split the gas flow into single streams. The change of direction products inertia in the droplets and they strike the lamellas and build a liquid film on the lamellas.
叶片把气体分成单个的气流。流向的改变产生的内力使得液滴撞击在叶片上而在叶片上形成水膜。
Under gravity influence the liquid film moves downwards and falls back into the absorber sump.
在重力的作用下，液体膜向下滴，落回吸收塔。
The specially designed lamellas cause an all in all small pressure drop in the gas flow.
特殊设计的叶片产生总的压降很小。
1.3 Performance and Operation Data/性能和操作数据
The design and engineering of the Lang Qing. mist eliminator is done with a special calculation method and considers all major influences.
廊青公司除雾器的设计运用了特殊的计算方法和充分地考虑了全部的主要影响因素。
For this reason the FGD plant must run within the design parameters to assure a high effective performance of the mist eliminator. This is especially important for the gas flow velocity, which must be within design range. Local exceeding of the flow velocity is only allowed within the given limits. The maximum flow velocity was determined during engineering from the operation data of the FGD plant and is fixed in the technical data sheets.
因此，脱硫装置必须在设计条件下运行来确保除雾器的高效性。尤其是对气体流速，气体流速必须在设计范围之内，局部气体偏高只允许在限定的范围之内。在设计过程中，*大气体流速的确定是从脱硫装置的运行数据表中得到的，他在技术数据表中有确定。
The same must be followed for the operation temperature. To avoid damages at the mist eliminator the mentioned maximum temperature must not be exceeded.
同样，必须保证在操作温度下运行。除雾器的操作温度不能超过允许的*高温度以避免损坏。
1.4PressureDrop/压降
The pressure drop of the mist eliminator system is stated in the technical data sheets and is part of the guarantee for the system. It always refers to clean lamellas and does not consider negative influences up-or downstream of the mist eliminator.
技术数据表内规定的除雾器压降是系统质保的一部分。它是指叶片在干净情况下的压降，没有考虑除雾器向上及向下气流所造成的消极影响。
Constant measuring of the pressure drop of the mist eliminator is recommended. A high rise of the pressure drop is a hint for a change in the system and activities to get back to the normal parameters, must be taken.
我们推荐对除雾器的压降进行在线测量。压降的急剧升高是系统产生变化的线索，这时必须采取措施使它回到正常的参数。
1.5 Spray System/冲洗系统
Coarse mist eliminator stage is up-and downstream equipped with nozzle pipes. Fine mist eliminator stage is only upstream equipped with nozzle pipes.
下级除雾器配有向下和向上的带喷嘴的冲洗管道。第二级除雾器只有向上的带喷嘴的冲洗管道。
Only soluble deposits can be rinsed with this system. It must be assured that the specified wash water quality and pressure upstream the nozzles are within the given range and that the cleaning cycles are performed as planed. These parameters must be monitored and documented.
只有可溶的结垢可由冲洗系统清洁。在使用中必须确保规定的冲洗水质和喷嘴压力在允许的范围之内，设计的冲洗周期必须保证执行。这些参数必须予以监控并备份文件。
A particularity negative influence has the already mentioned hardscaling. Hardscaling is the build up of non-soluble crystals at the lamellas of the mist eliminator. Whenever hardscaling appears, caused by in the design considered process conditions, the failure of the mist eliminator system can be the result.
前面提到的硬结垢是特别的不利影响。硬结垢是由不可溶的结晶体在除雾器表面上堆积形成。一旦除雾器发生硬结构（设计考虑到的工艺条件所引起），除雾器系统可能产生故障。
The spray system consists of a distributing pipe system with screwed in full cone nozzles.
冲洗系统由带有全锥形喷嘴和冲洗管道组成。
To get an optimized cleaning result, the spray program must be adjusted to the operating conditions of the FGD plant. For that reason the spray system must be operated in the specified intervals and, if necessary, re-adjusted to changing operating conditions of the FGD plant.
为了达到优化清洁的目的，冲洗程序必须调整到脱硫系统的操作条件。因此冲洗系统必须按规定的间隔进行冲洗，如果需要，要根据脱硫系统的操作条件的变化而再次调整程序。
It must be taken care, that there are no coarse particles in the wash water, which could lead to clogging of the nozzles and to failure of the spray system. Adequate particle filters must be installed within the wash water system
必须注意：在冲洗水中没有粗糙的固体颗粒，否则它会造成喷嘴堵塞和使得冲洗系统出现故障。在冲洗水系统中必须安装合适的颗粒过滤器。
After assembly of the spray system, it has to be controlled that there is no dirt left like rubber pieces, plastic pieces and insulation material in the pipe system.
在冲洗系统安装完后，必须控制在管道系统中没有异物，如橡胶片，塑料和绝缘物。
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FGD除雾器
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- 产品型号：ZBS
- 品 牌：廊青
- 所 在 地：河北廊坊市
- 更新日期：2024-09-05
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