脱硫器，是一种沼气专用运转装置，从沼气池中出来的沼气经过初步脱水后，进入脱硫器。硫化氢气体与脱硫剂接触，由于发生氧化还原反应而从沼气中脱除。脱硫系统能为脱硫反应提供的温度、水气含量，脱硫剂的装填工艺亦能为脱硫过程提供的气流通道和气固反应的有效接触面积，可以很大地提高脱硫剂的利用效率以及沼气的净化程度。
The biogas desulfurizer is a special biogas operation device. The biogas from the biogas digester enters the desulfurizer after preliminary dehydration. Hydrogen sulfide gas contacts with desulfurizer and is removed from biogas due to redox reaction. The desulfurization system can provide temperature and water gas content for desulfurization reaction, and the loading process of desulfurizer can also provide airflow channel and effective contact area for gas-solid reaction, which can greatly improve the utilization efficiency of desulfurizer and the purification degree of biogas.
沼气脱硫器特性在于脱硫瓶内的进气口上衔接一个悬空的多孔管，多孔管尽可以或许长地横向伸入脱硫瓶内腔，多孔管上密布小孔，小孔的孔径小于氧化铁小颗粒的直径。利益在于多孔管的设置，使与氧化铁小颗粒之间的出气道面积大为增加，则出气量大；其次水分部分泡烂氧化铁颗粒但仍能保留部分出气孔；再次在于多孔管悬空设置，使脱硫瓶内水分积压在悬空多孔管下方，不容易泡烂多孔管周边的氧化铁颗粒。
The characteristic of the biogas desulfurizer is that a suspended porous pipe is connected to the air inlet of the desulfurization bottle. The porous pipe can extend horizontally into the inner cavity of the desulfurization bottle as far as possible or as long as possible. The porous pipe is densely covered with small holes, and the aperture of the small hole is smaller than the diameter of small iron oxide particles. The benefit lies in the arrangement of the porous pipe, which makes the area of the air outlet between the small iron oxide particles and a large amount of gas output; secondly, the moisture part of the iron oxide particles is soaked, but some of the air outlet holes can be retained; thirdly, the porous pipe is suspended, so that the water in the desulfurization bottle is accumulated under the suspended porous pipe, which is not easy to soak the iron oxide particles around the porous pipe.
厌氧系统产生的沼气进行回收利用，沼气输气管使用304不锈钢管，能够承受50kpa以上压力。输气管道走向合理有坡度，朝沼气方向倾斜0.05%，长度短不盘圈，避免增长管道距离而使沼气压力损失增加。
The biogas produced by the anaerobic system is recycled. The biogas transmission pipe uses 304 stainless steel pipe, which can withstand the pressure above 50kPa. The natural gas pipeline has a reasonable direction with a slope of 0.05% in the direction of biogas, and the length is short without circle, so as to avoid increasing the pressure loss of biogas due to the increase of pipeline distance.
沼气通过不锈钢管进入脱水罐，脱水罐外部采用碳钢结构，内部防腐处理，沼气以一定的压力从上部的进气口进入后，水滴在离心力作用下旋转与脱水器壁发生碰撞，使水滴失去动能与沼气相分离，以达到除尘和脱水的目的。 而后器内的水滴沿内壁向下流动，而存于装置底部；并定期排除。
The biogas enters into the dehydration tank through stainless steel pipe. The outer part of the dehydration tank is made of carbon steel, and the internal anti-corrosion treatment is carried out. After the biogas enters from the upper air inlet with a certain pressure, the water drops rotate and collide with the dehydrator wall under the action of centrifugal force, which makes the water drop lose kinetic energy and separate from the biogas, so as to achieve the purpose of dust removal and dehydration. The water droplets in the latter flow downward along the inner wall and remain at the bottom of the device, and are discharged regularly.
脱水后的沼气再进入脱硫罐，干法脱硫沼气气体中等硫化氢（H2S）的基本原理是以O2使H2S氧化成硫或硫氧化物的一种方法，也可称为干式氧化法。干法设备的构成是，在一个容器内放入填料，填料层有活性炭、氧化铁等。气体以低流速从一端经过容器内填料层，硫化氢（H2S）氧化成硫或硫氧化物后，余留在填料层中，净化后气体从容器另一端排出。
The dehydrated biogas enters the desulfurization tank again. The basic principle of dry desulfurization of medium hydrogen sulfide (H2S) in biogas gas is a method that oxidizes H2S into sulfur or sulfur oxide with O2, which can also be called dry oxidation method. The composition of dry process equipment is to put fillers in a container, and the filler layer has activated carbon, iron oxide, etc. The gas passes through the packing layer in the container at a low flow rate. After hydrogen sulfide (H2S) is oxidized to sulfur or sulfur oxide, the remaining gas is left in the packing layer. After purification, the gas is discharged from the other end of the container.
经过一系列处理后，去除沼气中有害气体，然后通过阻火器和电动防爆蝶阀输送至火炬中进行燃烧，燃烧后的沼气已无有害物质，可直接排放至大气中。
After a series of treatment, the harmful gas in biogas is removed, and then transported to the flare for combustion through flame arrester and electric explosion-proof butterfly valve. After combustion, the biogas has no harmful substances and can be directly discharged into the atmosphere.
The above is the analysis and introduction of the principle of biogas desulfurization tower equipment, I believe you all know something about it. If you want to know more, please click our https://www.hneee.net Official website.
企业二维码
2020-07-30
鲁公网安备37011202000764号号