气脱硫剂是一种安装在沼气净化调压器中脱硫器瓶内的颗粒状物质。它的作用是除去从沼气池中输送来的沼气中的硫化氢气体，硫化氢气体具有臭鸡蛋味，通过脱硫剂吸收过滤就可去掉这种臭味，变成真正的沼气燃料。否则，含有硫化氢气体的沼气烧饭燃烧后硫化氢将会变成二氧化硫气体不但对人体有害而且在炒菜、点灯时还能闻到刺鼻二氧化硫气味，对人的器官造成危害，污染空气，还会腐蚀沼气灶、炊具等，所以，要及时更换脱硫剂是正确使用沼气的重要措施。

　　Gas desulfurizer is a granular substance installed in the desulfurizer bottle of the biogas purification regulator. Its function is to remove hydrogen sulfide gas from the biogas transported from the biogas digester. Hydrogen sulfide gas has a foul egg odor, which can be removed by absorption and filtration of desulfurizers, and becomes real biogas fuel. Otherwise, when cooking with biogas containing hydrogen sulfide gas, the hydrogen sulfide will turn into sulfur dioxide gas, which is not only harmful to human health but also has a pungent sulfur dioxide smell when cooking or lighting, causing harm to human organs, polluting the air, and corroding biogas stoves, cooking utensils, etc. Therefore, timely replacement of desulfurizers is an important measure for the correct use of biogas.

　　更换方法是：沼气脱硫剂使用6个月，必须更换。首先关闭沼气净化调压器开关，打开沼气净化调压器外壳，将装有脱硫剂的脱硫器瓶的输气管取下来，打开脱硫器瓶，将变色的脱硫剂倒出来，换上新的脱硫剂约1公斤（瓶口和瓶盖内要用布擦干净，防止漏气），重新安装好脱硫器瓶，盖上沼气净化调控器外壳。

　　The replacement method is: the biogas desulfurizer must be replaced after 6 months of use. Firstly, turn off the switch of the biogas purification regulator, open the outer shell of the biogas purification regulator, remove the gas pipeline of the desulfurizer bottle containing desulfurizer, open the desulfurizer bottle, pour out the discolored desulfurizer, replace it with about 1 kilogram of new desulfurizer (wipe the bottle mouth and cap with a cloth to prevent air leakage), reinstall the desulfurizer bottle, and cover the outer shell of the biogas purification regulator.

　　更换下的脱硫剂还可再使用，方法是：将更换下来的脱硫剂先除去碎沫，再把颗粒型剂放在阴凉、通风、干燥处2-4天，等到脱硫剂的颜色变成褐色，用塑料袋密封起来，不要受潮、曝晒、压碎，等下次更换使用。换下来的脱硫剂最多只能再用两次，但再次使用时间只能在3-4个月。

　　The replaced desulfurizer can still be reused. The method is to remove the foam from the replaced desulfurizer first, and then place the granular agent in a cool, ventilated, and dry place for 2-4 days. Wait until the color of the desulfurizer turns brown, seal it with a plastic bag, and do not let it get damp, exposed to sunlight, or crushed. Wait until the next replacement. The replaced desulfurizer can only be reused twice at most, but the reuse time can only be 3-4 months.

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