1. 沼气发电机组的沼气发电技术是一种集环保与节能为一体的新型能源综合利用技术。它是利用工业、农业或城市生活中大量的有机废液(如粮食、畜禽粪便、城市垃圾和污水等)，将厌氧发酵处理产生的沼气，带动沼气发电机组发电，并能充分利用发电机组的余热进行沼气生产，使综合热效率达到80%左右，且远高于平均30% - 40%的发电效率，经济效益是显著的。沼气发电技术本身就是提供的清洁能源，不仅解决了沼气工程中的环境问题，消耗了大量的废弃物，保护了环境，减少了温室气体的排放，而且产生了大量的热能和电能，符合能源回收利用的环保理念，还带来了巨大的经济效益。

The biogas power generation technology of biogas generator set is a new energy comprehensive utilization technology that integrates environmental protection and energy conservation. It utilizes a large amount of organic waste liquid (such as grain, livestock manure, urban garbage, and sewage) from industrial, agricultural, or urban life to anaerobically ferment and produce biogas, which drives a biogas generator set to generate electricity and fully utilizes the waste heat of the generator set for biogas production. The comprehensive thermal efficiency reaches about 80%, which is much higher than the average power generation efficiency of 30% -40%, and the economic benefits are significant. 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, reduces greenhouse gas emissions, but also generates a large amount of heat and electricity, in line with the environmental concept of energy recycling and utilization, and brings huge economic benefits.

沼气发电机组的沼气发电是一个系统工程，它包括沼气生产、沼气净化储存、沼气发电与互联网接入等单元技术优化结合。沼气发电始于20世纪70年代初。为了合理地利用有机废物污染处理中产生的沼气。沼气发电在中国的研究和应用也有多年的历史，由于开始使用沼气多是在农村把植物和粪肥等有机废物厌氧发酵产生在池中，虽然甲烷和地面量大，但产气量小，发动机功率小，而且沼气产量常受气候影响，气体组成、热值和产气量不稳定。

The biogas power generation of biogas generating units is a systematic project, which includes the optimization and combination of unit technologies such as biogas production, biogas purification and storage, biogas power generation and Internet access. Biogas power generation began in the early 1970s. In order to make reasonable use of the biogas generated from organic waste pollution treatment. The research and application of biogas power generation in China also have a history of many years. Due to the fact that biogas was first used in rural areas to anaerobically ferment organic waste such as plants and manure in ponds, although the methane and ground amount are large, the gas production is small, the engine power is low, and the biogas production is often affected by climate, resulting in unstable gas composition, calorific value, and gas production.

近年来，随着全国各地农牧养鸡场大中型沼气项目的建设，一些发动机厂改造生产了大型动力沼气发动机，并应用于大中型沼气发电项目的部分领域。目前，国内成熟的沼气发电机组的功率规格主要集中在24-600KW区间。从沼气项目产气量来看，很多沼气项目都适合建设500kW以上的沼气发电机组。从沼气项目的产气量和用电负荷的性质来看，20kW以下的发电机组也有很大的市场。

In recent years, with the construction of large and medium-sized biogas projects in agricultural, animal husbandry, and chicken farms across the country, some engine factories have transformed and produced large power biogas engines, which have been applied in some fields of large and medium-sized biogas power generation projects. At present, the power specifications of mature biogas generators in China are mainly concentrated in the range of 24-600KW. From the perspective of gas production in biogas projects, many biogas projects are suitable for constructing biogas power generation units with a capacity of over 500kW. From the nature of gas production and electricity load in biogas projects, there is also a large market for power generation units below 20kW.

例如，一个10000猪场沼气项目，日沼气80m3.显然不适合在线发电，只适合内部用电。其沼泽电一般用于驱动沼气工程污水泵、猪场通风机、照明等，因此宜配一台10kW左右的发电机组。类似的沼气项目很多，可见对小功率沼气发电机组的需求也是很大的。中国农村可用于沼气发电的应用前景广阔，资源十分丰富。

For example, a 10000 pig farm biogas project with a daily biogas output of 80m3 is clearly not suitable for online power generation and is only suitable for internal electricity use. The swamp electricity is generally used to drive sewage pumps, pig farm ventilation fans, lighting, etc. in biogas projects, so it is recommended to equip a generator set of about 10kW. There are many similar biogas projects, indicating a high demand for low-power biogas generators. The application prospects of biogas power generation in rural China are broad and the resources are abundant.

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