燃气发动机

Gas engine

核心部件，负责将燃气燃烧产生的热能转化为机械能，驱动发电机运转。常见类型包括往复式活塞发动机和燃气轮机。

The core component is responsible for converting the thermal energy generated by gas combustion into mechanical energy to drive the operation of the generator. Common types include reciprocating piston engines and gas turbines.

需配备点火系统（火花塞）或采用压燃技术（如双燃料机组）。

An ignition system (spark plug) or compression ignition technology (such as dual fuel units) is required.

发电机

alternator

将机械能转换为电能，通常为同步发电机，输出工频交流电（50Hz/60Hz）。

Convert mechanical energy into electrical energy, usually using a synchronous generator that outputs power frequency alternating current (50Hz/60Hz).

控制系统

Control system

实现机组启停、功率调节、故障保护及远程监控。现代机组多采用PLC或智能控制器，支持自动化运行。

Implement unit start stop, power regulation, fault protection, and remote monitoring. Modern units often use PLC or intelligent controllers to support automated operation.

辅助系统

Auxiliary system

燃料供给系统：包括燃气过滤、调压装置，确保稳定供气。

Fuel supply system: including gas filtration and pressure regulating devices to ensure stable gas supply.

冷却系统：水冷或风冷，防止发动机过热。

Cooling system: water-cooled or air-cooled to prevent engine overheating.

排气系统：处理高温废气，可能集成余热回收装置。

Exhaust system: deals with high-temperature exhaust gases and may integrate waste heat recovery devices.

消音装置：降低运行噪声，符合环保标准。

Silencing device: reduces operating noise and meets environmental standards.

二、燃气发电机组的分类

2、 Classification of Gas Generator Sets

按燃料类型

By fuel type

天然气发电机组：适用于管道天然气或压缩天然气（CNG），排放低，适合城市及工业区。

Natural gas generator set: suitable for pipeline natural gas or compressed natural gas (CNG), with low emissions, suitable for urban and industrial areas.

沼气发电机组：利用垃圾填埋气、农业沼气，促进废弃物资源化。

Biogas generator set: Utilizing landfill gas and agricultural biogas to promote waste resource utilization.

液化石油气（LPG）机组：便于储存运输，适用于燃气供应不稳定地区。

Liquefied petroleum gas (LPG) unit: easy to store and transport, suitable for areas with unstable gas supply.

按用途

By purpose

备用电源：医院、数据中心等对供电连续性要求高的场所。

Backup power supply: places such as hospitals and data centers that require high continuity of power supply.

热电联产（CHP）：余热用于供暖或工业流程，综合效率可达80%以上。

Combined Heat and Power (CHP): Waste heat is used for heating or industrial processes, with a comprehensive efficiency of over 80%.

分布式能源系统：作为微电网的一部分，与可再生能源互补。

Distributed energy system: As a part of microgrids, it complements renewable energy.

三、工作原理

3、 Working principle

燃气燃烧：燃气与空气混合后，在气缸内点燃（火花点火）或压燃，推动活塞运动（四冲程循环）。

Gas combustion: After mixing with air, gas is ignited (spark ignition) or compressed in the cylinder, driving the piston to move (four stroke cycle).

能量转换：曲轴将往复运动转为旋转机械能，驱动发电机转子切割磁感线发电。

Energy conversion: The crankshaft converts reciprocating motion into rotational mechanical energy, driving the generator rotor to cut magnetic induction lines and generate electricity.

并网/离网运行：可通过同步装置接入电网，或独立为负载供电。

Grid connected/off grid operation: It can be connected to the grid through synchronous devices or independently supplied to the load.

四、核心优势

4、 Core advantages

环保性

Environmental friendliness

相比柴油机组，氮氧化物（NOx）和颗粒物排放减少50%以上，符合严苛环保法规（如EU Stage V）。

Compared to diesel engines, nitrogen oxide (NOx) and particulate matter emissions are reduced by over 50%, in compliance with strict environmental regulations such as EU Stage V.

高效节能

Efficient and energy-saving

燃气发电效率通常为30%-45%，热电联产模式下可达90%。

The efficiency of gas-fired power generation is usually 30% -45%, and can reach 90% in cogeneration mode.

燃料成本较低，尤其天然气价格稳定地区经济性显著。

The fuel cost is relatively low, especially in regions with stable natural gas prices where the economy is significant.

燃料灵活性

Fuel flexibility

部分机组支持双燃料（如天然气+柴油），增强应急能力。

Some units support dual fuel (such as natural gas+diesel) to enhance emergency capabilities.

快速响应

quick response

冷启动时间短（数分钟），适合调峰或应急场景。

The cold start time is short (several minutes), suitable for peak shaving or emergency scenarios.

五、典型应用场景

5、 Typical application scenarios

工业领域

Industrial sector

工厂自备电站，应对限电或电价高峰；化工企业利用工艺废气发电。

The factory has its own power station to cope with power restrictions or peak electricity prices; Chemical companies use process waste gas to generate electricity.

商业设施

Commercial facilities

酒店、商场采用CHP系统，降低能源成本。

Hotels and shopping malls adopt CHP systems to reduce energy costs.

农业与废弃物处理

Agriculture and Waste Management

畜禽养殖场利用沼气发电，实现能源自给。

Livestock and poultry farms use biogas to generate electricity and achieve energy self-sufficiency.

油气田

Oil and gas fields

利用伴生气发电，减少放空燃烧，提升资源利用率。

Utilize associated gas to generate electricity, reduce venting and combustion, and improve resource utilization efficiency.

六、选型与维护要点

6、 Selection and maintenance points

选型指南

Selection Guide 

功率匹配：根据负载需求（持续/峰值）选择容量，预留10%-20%冗余。

Power matching: Select capacity based on load demand (continuous/peak) and reserve 10% -20% redundancy.

燃料适配性：评估当地燃气供应类型及稳定性。

Fuel compatibility: Evaluate the type and stability of local gas supply.

品牌与认证：选择通过ISO 8528等国际标准的品牌（如卡特彼勒、康明斯、颜巴赫）。

Brand and Certification: Choose brands that have passed international standards such as ISO 8528 (such as Caterpillar, Cummins, and Yanbach).

维护策略

Maintenance strategy

定期保养：更换机油、空气滤清器，检查火花塞。

Regular maintenance: replace engine oil, air filter, and check spark plugs.

燃气系统检查：防止泄漏，定期清理燃气喷嘴。

Gas system inspection: To prevent leaks, regularly clean the gas nozzle.

余热回收维护：清洗换热器，保持热效率。

Waste heat recovery maintenance: Clean the heat exchanger to maintain thermal efficiency.

七、未来发展趋势

7、 Future Development Trends

高效低排放技术

Efficient and low emission technology

预燃室技术、稀薄燃烧优化，进一步提升效率并降低NOx排放。

Pre chamber technology and lean combustion optimization further improve efficiency and reduce NOx emissions.

智能化与物联网

Intelligence and the Internet of Things

集成AI预测性维护，实时监测机组健康状态，减少非计划停机。

Integrated AI predictive maintenance, real-time monitoring of unit health status, reducing unplanned downtime.

多能互补系统

Multi energy complementary system

与光伏、储能结合，构建灵活微电网，适应碳中和目标。

Combining photovoltaics and energy storage to build a flexible microgrid that adapts to carbon neutrality goals.

绿色燃料应用

Green fuel application

探索掺氢燃烧（Hythane）或100%氢燃料机组，助力零碳转型。

Explore hydrogen combustion or 100% hydrogen fuel units to assist in zero carbon transformation.

总结

summary

燃气发电机组凭借清洁、高效、灵活的特点，在能源转型中扮演重要角色。选型时需综合考虑燃料可获得性、运行场景及全生命周期成本，结合智能化技术提升运维效率，未来在氢能等新兴领域有望进一步拓展应用边界。

Gas turbine generators play an important role in energy transformation due to their clean, efficient, and flexible characteristics. When selecting, it is necessary to comprehensively consider fuel availability, operating scenarios, and full lifecycle costs, combined with intelligent technology to improve operation and maintenance efficiency. In the future, it is expected to further expand its application boundaries in emerging fields such as hydrogen energy.

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This article is a friendly contribution from a gas generator set For more information, please click: //m.gz-yanye.com Sincere attitude To provide you with comprehensive services We will gradually contribute more relevant knowledge to everyone Coming soon.