湿式除尘的优点是易于维护，通过配制不同的除尘剂，可以同时达到除尘和脱硫(脱硝)的效果。缺点是除尘液需要处理，可能导致二次污染。根据风量设计或选择袋式除尘器时，一般不允许在风量超过规定风量的情况下运行，否则容易堵塞滤袋，缩短使用寿命，大大增加压力损失，也降低除尘效率。但风量不宜过大，否则会增加设备投资和占地面积。
The advantage of wet dedusting is easy maintenance. By preparing different dedusting agents, the effects of dedusting and desulfurization (denitration) can be achieved at the same time. The disadvantage is that the dedusting liquid needs to be treated, which may lead to secondary pollution. When designing or selecting the bag filter according to the air volume, it is generally not allowed to operate when the air volume exceeds the specified air volume, otherwise it is easy to block the filter bag, shorten the service life, greatly increase the pressure loss and reduce the dust removal efficiency. However, the air volume should not be too large, otherwise the equipment investment and floor area will be increased.
目前使用的PPS滤料有很多。温度是170℃。对于袋式除尘器，使用温度与除尘效率的关系不明显，与静电除尘器不同。对于静电除尘器来说，温度的变化会影响粉尘的比电阻和除尘效率。玻璃钢的长期耐温性较差。玻璃钢一般不能长期高温使用，一般聚酯玻璃钢在50℃以上强度会明显下降，一般只能在100℃以下使用。当温度超过60℃时，通用环氧玻璃钢的强度明显下降。

There are many PPS filter materials used at present. The temperature is 170 ℃. For bag filter, the relationship between service temperature and dust removal efficiency is not obvious, which is different from electrostatic precipitator. For electrostatic precipitator, the change of temperature will affect the specific resistance of dust and dust removal efficiency. FRP has poor long-term temperature resistance. FRP generally cannot be used at high temperature for a long time. Generally, the strength of polyester FRP will decrease significantly above 50 ℃, and it can only be used below 100 ℃. When the temperature exceeds 60 ℃, the strength of general epoxy FRP decreases obviously.
但可选用耐高温树脂，可将长期工作温度保持在200~300℃。玻璃纤维增强塑料(FRP)层间剪切强度层间剪切强度由树脂承担，因此比较低。膜脱硫除尘器的清洗孔应位于管道的侧面或上部，所有清洗孔必须严密不透气。如果有漏气，清洗孔上游管道内的流速会降低，积尘会更加严重，导致吸尘孔的排气量减少。因此，在玻璃钢脱硫除尘器的日常维护工作中，一定要注意细节。
However, high temperature resistant resin can be selected to maintain the long-term working temperature at 200 ~ 300 ℃. The interlaminar shear strength of glass fiber reinforced plastics (FRP) is borne by resin, so it is relatively low. The cleaning holes of membrane desulfurization dust remover shall be located at the side or upper part of the pipeline, and all cleaning holes must be tight and airtight. If there is air leakage, the flow rate in the pipeline upstream of the cleaning hole will be reduced, and the dust accumulation will be more serious, resulting in the reduction of the exhaust volume of the dust suction hole. Therefore, attention must be paid to details in the daily maintenance of FRP desulfurization and dust collector.
实际运行中，由于沼气脱硫装置生产设备的间歇运行以及一些未考虑的因素，粉尘也会沉积在管道中，越积越厚，一时难以清除。
In the actual operation, due to the intermittent operation of the production equipment of the biogas desulfurization unit and some factors not considered, the dust will also be deposited in the pipeline, the more accumulated and thicker, which is difficult to remove at the moment.
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