在養(yǎng)殖場(chǎng)、污水處理廠等沼氣產(chǎn)出場(chǎng)景中，沼氣發(fā)電本是“變廢為寶”的好項(xiàng)目——既能處理廢棄物，又能產(chǎn)生清潔能源。但不少?gòu)臉I(yè)者卻直呼“又愛又恨”，吐槽沼氣發(fā)電機(jī)組不好用：有的用兩千多小時(shí)就出故障，差的幾百小時(shí)就報(bào)廢，維修成本居高不下?？赏瑯拥臋C(jī)組，在油田、天然氣領(lǐng)域卻能穩(wěn)定運(yùn)行八千小時(shí)。這到底是怎么回事？今天就結(jié)合實(shí)操經(jīng)驗(yàn)，給大家科普沼氣發(fā)電機(jī)組“不好用”的核心原因，幫大家理清其中的關(guān)鍵門道。

　　In biogas production scenarios such as farms and sewage treatment plants, biogas power generation is a good project to turn waste into treasure - it can not only treat waste but also generate clean energy. However, many practitioners call it "love and hate" and complain roast biogas generating units are not easy to use: some of them break down after more than 2000 hours, and some of them are scrapped after hundreds of hours, with high maintenance costs. However, the same unit can operate stably for 8000 hours in the fields of oil fields and natural gas. What the hell is going on here? Today, based on practical experience, we will explain to you the core reasons why biogas generators are not easy to use, and help you clarify the key tricks involved.

　　先給大家講個(gè)真實(shí)案例：我們十天前剛修補(bǔ)完一個(gè)養(yǎng)殖場(chǎng)的5萬(wàn)立方生物質(zhì)氣設(shè)施，之前因氣管脫落導(dǎo)致沼氣全部泄漏，重新安裝后僅十天左右，池子就全鼓起來(lái)了，產(chǎn)氣速度特別快，測(cè)算日產(chǎn)量不低于8000立方，整體效益本該很好。而這個(gè)項(xiàng)目的發(fā)電機(jī)組，穩(wěn)定運(yùn)行了四五千小時(shí)都沒出問(wèn)題。核心原因很簡(jiǎn)單——這里的沼氣硫化氫含量低，對(duì)發(fā)電機(jī)的腐蝕性極小。反觀很多其他養(yǎng)殖場(chǎng)，發(fā)電機(jī)組壽命大幅縮短，本質(zhì)問(wèn)題就出在沼氣的前期預(yù)處理上。

　　Let me give you a real case first: We just repaired a 50000 cubic meter biomass gas facility in a breeding farm ten days ago. Previously, all the biogas leaked due to the detachment of the gas pipe. After reinstalling it, the pool was fully inflated in just about ten days, and the gas production rate was particularly fast. The estimated daily output was not less than 8000 cubic meters, and the overall benefit should have been very good. And the generator set of this project has been running stably for four to five thousand hours without any problems. The core reason is simple - the hydrogen sulfide content in the biogas here is low, and its corrosiveness to the generator is minimal. On the other hand, in many other breeding farms, the lifespan of the generator set has been significantly shortened, and the fundamental problem lies in the pre-treatment of biogas in the early stage.

　　可能有人會(huì)疑惑，現(xiàn)在發(fā)電機(jī)組的品質(zhì)一直在提升，為啥到了沼氣領(lǐng)域就“水土不服”？關(guān)鍵不在于機(jī)組本身，而在于沼氣中的雜質(zhì)，尤其是硫化氫。硫化氫是強(qiáng)腐蝕性氣體，哪怕含量不高，長(zhǎng)期接觸也會(huì)嚴(yán)重?fù)p壞發(fā)電機(jī)組的核心部件。之前遇到不少養(yǎng)殖場(chǎng)客戶，發(fā)電機(jī)組用幾百到兩千多小時(shí)就被腐蝕，根本原因就是沼氣中的硫化氫沒處理干凈，持續(xù)侵蝕設(shè)備內(nèi)部結(jié)構(gòu)，最終導(dǎo)致故障停機(jī)。

　　Some people may wonder why the quality of generator sets has been constantly improving, and why is it so difficult to adapt to the biogas industry? The key is not the unit itself, but the impurities in the biogas, especially hydrogen sulfide. Hydrogen sulfide is a highly corrosive gas, and even if its content is not high, long-term exposure can seriously damage the core components of the generator set. Previously, we encountered many customers in breeding farms where the generator set was corroded after several hundred to two thousand hours. The root cause was that the hydrogen sulfide in the biogas was not completely removed, which continued to erode the internal structure of the equipment and ultimately led to a malfunction and shutdown.

　　而預(yù)處理不到位的核心癥結(jié)，在于成本敏感下的工藝選擇偏差。對(duì)國(guó)內(nèi)大多數(shù)客戶來(lái)說(shuō)，都希望控制前期投入，普遍存在“發(fā)電機(jī)成本不能比脫硫成本高”的認(rèn)知。這就導(dǎo)致一個(gè)關(guān)鍵問(wèn)題：本應(yīng)做好的脫硫工藝被簡(jiǎn)化。要知道，高效的脫硫工藝比如濕法脫硫，雖然脫硫效果好，能穩(wěn)定控制硫化氫含量，但造價(jià)高昂，大多客戶難以接受。無(wú)奈之下，很多項(xiàng)目只能選擇成本更低的干法脫硫。

　　The core issue of inadequate preprocessing lies in the process selection deviation under cost sensitivity. For most domestic customers, they hope to control the initial investment, and there is a common perception that the cost of generators cannot be higher than that of desulfurization. This leads to a key issue: the desulfurization process that should have been done well is simplified. You should know that efficient desulfurization processes such as wet desulfurization have good desulfurization effects and can stably control hydrogen sulfide content, but they are expensive and difficult for most customers to accept. Helpless, many projects can only choose the lower cost dry desulfurization method.

　　可干法脫硫的弊端十分明顯，這也是發(fā)電機(jī)組“短命”的直接導(dǎo)火索。干法脫硫依賴脫硫劑吸附硫化氫，但脫硫劑有明確的使用周期，前500小時(shí)左右還能勉強(qiáng)達(dá)標(biāo)，超過(guò)這個(gè)時(shí)間后，脫硫效果會(huì)急劇下降，無(wú)法有效攔截硫化氫。而很多客戶忽略了脫硫劑的更換周期，或者為了省成本拖延更換，導(dǎo)致未被去除的硫化氫直接進(jìn)入發(fā)電機(jī)組，持續(xù)腐蝕部件。久而久之，設(shè)備自然頻繁出故障，使用壽命大幅縮短。

　　The drawbacks of dry desulfurization are very obvious, which is also the direct trigger for the "short life" of the generator set. Dry desulfurization relies on desulfurizers to adsorb hydrogen sulfide, but desulfurizers have a clear usage cycle. They can barely meet the standard for the first 500 hours, but after this time, the desulfurization effect will sharply decrease and cannot effectively intercept hydrogen sulfide. However, many customers overlook the replacement cycle of desulfurizers or delay replacement in order to save costs, resulting in untreated hydrogen sulfide directly entering the generator set and continuously corroding components. Over time, the equipment naturally experiences frequent malfunctions, resulting in a significant reduction in its lifespan.

　　這里要明確一個(gè)關(guān)鍵認(rèn)知：沼氣發(fā)電項(xiàng)目好不好用，核心不在發(fā)電機(jī)組的品質(zhì)，而在前期的沼氣預(yù)處理，尤其是脫硫環(huán)節(jié)。同樣的機(jī)組，在硫化氫含量低的沼氣環(huán)境中能穩(wěn)定運(yùn)行數(shù)千小時(shí)，在脫硫不到位的環(huán)境中就頻繁報(bào)廢，足以說(shuō)明預(yù)處理的重要性。很多人誤以為“上了發(fā)電機(jī)組就能穩(wěn)定發(fā)電”，卻忽略了沼氣本身的特性，跳過(guò)了必要的預(yù)處理步驟，最終導(dǎo)致項(xiàng)目失敗。

　　Here we need to clarify a key understanding: whether a biogas power generation project is effective or not depends not on the quality of the generator set, but on the early biogas pretreatment, especially the desulfurization process. The same unit can operate stably for thousands of hours in biogas environments with low hydrogen sulfide content, but is frequently scrapped in environments with inadequate desulfurization, which demonstrates the importance of pretreatment. Many people mistakenly believe that 'stable power generation can be achieved by installing a generator set', but ignore the characteristics of biogas itself, skip necessary pre-treatment steps, and ultimately lead to project failure.

　　針對(duì)養(yǎng)殖領(lǐng)域的沼氣發(fā)電項(xiàng)目，我們今年也明確了核心方向：必須把脫硫、脫水工藝做到位。不管客戶對(duì)成本多敏感，都要優(yōu)先保障預(yù)處理效果，通過(guò)合理的工藝設(shè)計(jì)，將沼氣中的硫化氫等雜質(zhì)控制在發(fā)電機(jī)組能接受的范圍。比如定期更換脫硫劑，根據(jù)產(chǎn)氣規(guī)模和硫化氫含量?jī)?yōu)化脫硫流程，必要時(shí)采用多級(jí)脫硫工藝，從根源上減少對(duì)設(shè)備的腐蝕。只有這樣，才能提高發(fā)電機(jī)組的綜合利用效率，讓沼氣發(fā)電真正發(fā)揮效益。

　　For biogas power generation projects in the aquaculture industry, we have also clarified the core direction this year: we must put desulfurization and dehydration processes in place. No matter how cost sensitive the customer is, priority should be given to ensuring the pre-treatment effect. Through reasonable process design, impurities such as hydrogen sulfide in biogas should be controlled within the acceptable range of the generator set. For example, regularly replacing desulfurizers, optimizing desulfurization processes based on gas production scale and hydrogen sulfide content, and adopting multi-stage desulfurization processes when necessary to reduce equipment corrosion at the root. Only in this way can the comprehensive utilization efficiency of the generator set be improved, and the benefits of biogas power generation be truly realized.

　　可能有客戶會(huì)擔(dān)心，做好脫硫工藝會(huì)大幅增加成本。但從長(zhǎng)遠(yuǎn)來(lái)看，這其實(shí)是“省錢”的關(guān)鍵。前期省了脫硫的投入，后期發(fā)電機(jī)組頻繁維修、更換的成本更高，還會(huì)耽誤正常發(fā)電，損失更多收益。與其等到設(shè)備報(bào)廢再補(bǔ)救，不如在前期就做好預(yù)處理，選擇適配的脫硫工藝，平衡成本與效果。

　　Some customers may be concerned that implementing effective desulfurization processes will significantly increase costs. But in the long run, this is actually the key to 'saving money'. In the early stage, the investment in desulfurization was saved, but in the later stage, the cost of frequent maintenance and replacement of the generator set is higher, which will also delay normal power generation and result in a loss of more revenue. Instead of waiting until the equipment is scrapped for remediation, it is better to do a good job of pre-treatment in the early stage, choose a suitable desulfurization process, and balance cost and effectiveness.

　　總結(jié)下來(lái)，沼氣發(fā)電機(jī)組“不好用”的根源，不是設(shè)備品質(zhì)不行，而是前期沼氣預(yù)處理不到位，尤其是脫硫工藝選擇不當(dāng)、維護(hù)不及時(shí)。對(duì)想上沼氣發(fā)電項(xiàng)目的養(yǎng)殖企業(yè)來(lái)說(shuō)，千萬(wàn)別只盯著發(fā)電機(jī)組的成本，忽略了脫硫、脫水這些基礎(chǔ)環(huán)節(jié)。只有把沼氣“凈化”到位，讓發(fā)電機(jī)組在安全的氣體環(huán)境中運(yùn)行，才能避免頻繁故障，真正實(shí)現(xiàn)沼氣發(fā)電的經(jīng)濟(jì)效益和環(huán)保價(jià)值。如果正在規(guī)劃或運(yùn)營(yíng)沼氣發(fā)電項(xiàng)目，不妨先檢查一下自身的預(yù)處理工藝，這才是解決問(wèn)題的核心所在。

　　In summary, the root cause of the "poor usability" of biogas generators is not the poor quality of the equipment, but the inadequate pre-treatment of biogas in the early stage, especially the improper selection and untimely maintenance of desulfurization processes. For breeding enterprises that want to invest in biogas power generation projects, they should not only focus on the cost of the generator set and ignore the basic links such as desulfurization and dehydration. Only by thoroughly purifying biogas and allowing the generator set to operate in a safe gas environment can frequent failures be avoided, truly realizing the economic benefits and environmental value of biogas power generation. If you are planning or operating a biogas power generation project, you may want to first check your pre-treatment process, which is the core of solving the problem.

　　本文由   沼氣發(fā)電機(jī)組  友情奉獻(xiàn).更多有關(guān)的知識(shí)請(qǐng)點(diǎn)擊  http://hfdxyy.com/   真誠(chéng)的態(tài)度.為您提供為全面的服務(wù).更多有關(guān)的知識(shí)我們將會(huì)陸續(xù)向大家奉獻(xiàn).敬請(qǐng)期待.

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