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沼气净化脱硫装置的运行维护!

时间:2021-05-19
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沼气净化装置的运行维护应符合下列规定:
The operation and maintenance of biogas purification device shall meet the following requirements:
1、应定期排出脱水、脱硫装置中的领凝水。当室外温度接近0℃时,应每天排除冷凝水,排水时应防止沼气泄漏。
1. The condensate water in dehydration and desulfurization unit shall be discharged regularly. When the outdoor temperature is close to 0 ℃, the condensate water should be drained every day, and the leakage of biogas should be prevented during drainage.
2、生物脱硫启动运行正常后,应定期检查脱硫前后硫化氢浓度变化,硫化氢去除率应满足后端工艺要求。当发现脱硫效率明显下降时,应及时补充循环营养液。塔内填料应6-12个月清洗1次。
2. After the start-up and operation of biological desulfurization are normal, the change of hydrogen sulfide concentration before and after desulfurization should be checked regularly, and the hydrogen sulfide removal rate should meet the requirements of back-end process. When it is found that the desulfurization efficiency is obviously decreased, the circulating nutrient solution should be supplemented in time. The packing in the tower should be cleaned once every 6-12 months.
3、应定期检查干法脱硫塔前后硫化氢浓度、沼气压力变化,当达不到设计要求时应更换脱硫剂或进行脱硫再生。
3. The change of hydrogen sulfide concentration and biogas pressure before and after the dry desulfurization tower should be checked regularly. When the design requirements are not met, the desulfurizer should be replaced or the desulfurization regeneration should be carried out.
                       沼气脱硫
4、干法脱硫塔再生应符合下列规定:
4. Regeneration of dry desulfurization tower shall meet the following requirements:
1).当采用塔内脱硫剂再生时,应关闭沼气进出口阀,打开旁通管道和放散管路阀门。
1) When the desulfurizer in the tower is used for regeneration, the inlet and outlet valves of biogas should be closed, and the valves of bypass pipeline and discharge pipeline should be opened.
2).当采用在线脱硫剂再生时,应根据沼气中硫化氢含量确定空气掺混量及空气流速,塔内温度应低于70℃,脱硫塔出口处沼气中氧含量应小于1%;
2) When online desulfurizer regeneration is used, the air mixing amount and air flow rate should be determined according to the content of hydrogen sulfide in biogas. The temperature in the tower should be lower than 70 ℃, and the oxygen content in biogas at the outlet of desulfurization tower should be less than 1%;
3).脱硫剂进行2次~3次再生后应及时更换,更换脱硫剂时操作人员应戴防毒面具,室内应进行通风;
3) The desulfurizer should be replaced in time after 2 ~ 3 times of regeneration. When replacing the desulfurizer, the operators should wear gas masks, and the room should be ventilated;
4).废脱硫剂的处置应符合环境保护的要求。
4) The disposal of waste desulfurizer should meet the requirements of environmental protection.

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