沼氣發(fā)電具有創(chuàng)效、節(jié)能、安全和環(huán)保等特點(diǎn)，是一種分布廣泛且價(jià)廉的分布式能源. 市場(chǎng)研究表明沼氣發(fā)電在發(fā)達(dá)國(guó)家已受到廣泛重視和積極推廣。

Biogas power generation has the characteristics of efficiency, energy conservation, safety, and environmental protection, and is a widely distributed and cost-effective distributed energy source Market research shows that biogas power generation has been widely valued and actively promoted in developed countries.

生物質(zhì)能發(fā)電并網(wǎng)在西歐一些國(guó)家占能源總量的10%左右。 沼氣發(fā)電技術(shù)是集環(huán)保和節(jié)能于一體的能源綜合利用新技術(shù)。它是利用工業(yè)、農(nóng)業(yè)或城鎮(zhèn)生活中的大量有機(jī)廢棄物(例如酒糟液、禽畜糞、城市垃圾和污水等)，經(jīng)厭氧發(fā)酵處理產(chǎn)生的沼氣，驅(qū)動(dòng)沼氣發(fā)電機(jī)組發(fā)電，并可充分將發(fā)電機(jī)組的余熱用于沼氣生產(chǎn)。

Biomass energy grid connection accounts for about 10% of the total energy in some Western European countries. Biogas power generation technology is a new energy comprehensive utilization technology that integrates environmental protection and energy conservation. It utilizes a large amount of organic waste from industry, agriculture, or urban life (such as distiller's grains, livestock manure, urban garbage, and sewage), and produces biogas through anaerobic fermentation to drive the biogas generator set to generate electricity, and can fully utilize the waste heat of the generator set for biogas production.

沼氣發(fā)電熱電聯(lián)產(chǎn)項(xiàng)目的熱效率，視發(fā)電設(shè)備的不同而有較大的區(qū)別，如使用燃?xì)鈨?nèi)燃機(jī)，其熱效率為70%~75%之間，而如使用燃?xì)馔钙胶陀酂徨仩t，在補(bǔ)燃的情況下，熱效率可以達(dá)到90%以上。

The thermal efficiency of biogas cogeneration projects varies greatly depending on the type of power generation equipment used. For example, if a gas internal combustion engine is used, its thermal efficiency ranges from 70% to 75%. However, if a gas turbine and waste heat boiler are used, the thermal efficiency can reach over 90% with supplementary combustion.

沼氣發(fā)電技術(shù)本身提供的是清潔能源，不僅解決了沼氣工程中的環(huán)境問題、消耗了大量廢棄物、保護(hù)了環(huán)境、減少了溫室氣體的排放，而且變廢為寶，產(chǎn)生了大量的熱能和電能，符合能源再循環(huán)利用的環(huán)保理念，同時(shí)也帶來巨大的經(jīng)濟(jì)效益。

The biogas power generation technology itself provides clean energy, which not only solves environmental problems in biogas engineering, consumes a large amount of waste, protects the environment, and reduces greenhouse gas emissions, but also turns waste into treasure, generating a large amount of heat and electricity, in line with the environmental protection concept of energy recycling and utilization, and also brings huge economic benefits.

沼氣發(fā)電機(jī)是通過垂直植入垃圾堆體里若干根抽氣井，不間斷將沼氣抽出，經(jīng)過收集管網(wǎng)送至發(fā)電機(jī)機(jī)組，再經(jīng)過冷卻脫硫脫水、過濾凈化等處理后，產(chǎn)生的純沼氣在發(fā)電機(jī)組里燃燒后發(fā)電，再并入電網(wǎng)。

A biogas generator is a type of generator that continuously extracts biogas by vertically implanting several extraction wells into the garbage heap. The biogas is then collected through a collection pipeline and sent to the generator unit, where it is cooled, desulfurized, dehydrated, filtered, and purified. The resulting pure biogas is burned in the generator unit to generate electricity, which is then integrated into the power grid.

沼氣發(fā)電原理： 首先就是要先從沼氣講起，沼氣是部分有機(jī)物經(jīng)過封閉式的厭氧發(fā)酵，發(fā)酵后就會(huì)含有部分沼氣，然后經(jīng)過收集?，F(xiàn)在大部分都是生活垃圾或者污水COD含量高的企業(yè)沼氣量比較充足。然后在開始說沼氣的成分，沼氣中的成分非?；祀s，其中甲烷的含量是比較高的。而且甲烷是一種可燃性氣體，熱值也比較高。 收集后的沼氣通過發(fā)電機(jī)組的發(fā)動(dòng)機(jī)進(jìn)行燃燒做工，就是內(nèi)燃機(jī)形式，由做工后的扭矩帶動(dòng)發(fā)電機(jī)的轉(zhuǎn)子繞組進(jìn)行做工，完成發(fā)電流程。

The principle of biogas power generation: First of all, we need to start with biogas. biogas is a closed anaerobic fermentation of some organic matter, and after fermentation, it will contain some biogas, which is then collected. Nowadays, most enterprises with high COD content in household waste or sewage have sufficient biogas production. Then, when it comes to the composition of biogas, the components are very mixed, with methane content being relatively high. Moreover, methane is a combustible gas with a relatively high calorific value. The collected biogas is burned through the engine of the generator set, which is in the form of an internal combustion engine. The torque after the work drives the rotor winding of the generator to complete the power generation process.