瓦斯发电是一种以煤矿中瓦斯(煤层)气体为燃烧物，代替汽油、柴油作为发动机动力的新型、高效的清洁能源发电，其主要核心设备为瓦斯燃气发电机组。该发电机组具有输出功率范围广、发电质量好、集成度高、维护简单、运行可靠等优点。

　　Gas power generation is a new and efficient clean energy generation method that uses coal seam gas as combustion material, replacing gasoline and diesel as engine power. Its main core equipment is gas gas generator sets. This generator set has the advantages of wide output power range, good power generation quality, high integration, simple maintenance, and reliable operation.

　　在工程中各发电厂所使用的瓦斯发电机组品牌不同，有国内设备、也有国外设备，其功率大小也不尽相同，但从整个瓦斯发电工艺流程来看是一致的，其系统都是由进气排气系统、点火系统、润滑系统、冷却系统、综合控制等系统构成。瓦斯电站布局示意图煤层气发电工程中都建有储气柜，保证燃机用气的稳定。

　　The brands of gas generator sets used in various power plants in the project are different, including domestic and foreign equipment, and their power levels are also not the same. However, from the perspective of the entire gas power generation process, they are consistent, and their systems are composed of intake and exhaust systems, ignition systems, lubrication systems, cooling systems, comprehensive control systems, etc. Gas power station layout diagram: Gas storage tanks are built in coalbed methane power generation projects to ensure the stability of gas supply for gas turbines.

　　储气柜中的瓦斯气体经过瓦斯气预处理系统后，到达燃气机组进入燃机混合器中，同时空气经过空气滤芯后同时进入混合器。在燃机混合器内，燃机对空气和瓦斯气进行自动配比后形成混合气体，混合气体经过涡轮增压器后，再经过冷却器进行两级冷却，使气体温度稳定在一定范围内，通过不断调整节气阀，从而调整进气量，最后进入气缸内进行压缩、做功，从而使发动机驱动发电机进行发电。瓦斯发电机组经做功排出的废气一般供给余热锅炉及其他换热设备或直接排入大气中。

　　The gas in the gas storage tank passes through the gas pre-treatment system and enters the gas turbine mixer. At the same time, the air passes through the air filter and enters the mixer. In the gas turbine mixer, the gas turbine automatically proportions air and gas to form a mixed gas. After passing through the turbocharger, the mixed gas is cooled in two stages by the cooler to stabilize the gas temperature within a certain range. By continuously adjusting the throttle valve, the intake air volume is adjusted, and finally it enters the cylinder for compression and work, so that the engine drives the generator to generate electricity. The exhaust gas discharged by the gas generator unit through work is generally supplied to the waste heat boiler and other heat exchange equipment or directly discharged into the atmosphere.

　　瓦斯发电机组主要由以下五大系统构成：

　　The gas generator set is mainly composed of the following five systems:

　　进气排气系统

　　Air intake and exhaust system

　　负责将瓦斯气体与空气按比例混合后送入发动机气缸，同时排出燃烧后的废气。该系统包括空气滤清器、瓦斯气预处理装置、混合器、涡轮增压器、中冷器等部件，确保气体供应稳定且符合燃烧要求。

　　Responsible for mixing gas with air in proportion and sending it into the engine cylinder, while discharging the exhaust gas after combustion. The system includes components such as air filters, gas pre-treatment devices, mixers, turbochargers, intercoolers, etc., to ensure stable gas supply and meet combustion requirements.

　　点火系统

　　ignition system

　　通过电子点火装置在合适时机点燃混合气体，使发动机正常工作。现代瓦斯发电机组多采用数字式点火技术，可根据发动机工况精确控制点火时间和能量，提高燃烧效率和稳定性。

　　Ignite the mixed gas at the appropriate time through an electronic ignition device to ensure normal engine operation. Modern gas generator sets often use digital ignition technology, which can accurately control ignition time and energy according to engine operating conditions, improving combustion efficiency and stability.

　　润滑系统

　　lubrication system

　　为发动机的运动部件（如活塞、曲轴、轴承等）提供润滑油，减少摩擦和磨损，保证发动机正常运转。该系统包括机油泵、油道、机油滤清器、油底壳等部件，需定期检查机油液位和质量。

　　Provide lubricating oil for the moving parts of the engine, such as pistons, crankshafts, bearings, etc., to reduce friction and wear and ensure the normal operation of the engine. The system includes components such as oil pump, oil passage, oil filter, and oil pan, which require regular inspection of oil level and quality.

　　冷却系统

　　cooling system

　　防止发动机过热，确保其在正常温度范围内工作。通常采用水冷或风冷方式，通过冷却液循环或风扇散热，将发动机产生的热量散发出去。冷却系统包括膨胀水箱、水泵、散热器、冷却管道等部件。

　　Prevent engine overheating and ensure it operates within the normal temperature range. Usually, water or air cooling is used to dissipate the heat generated by the engine through coolant circulation or fan cooling. The cooling system includes components such as expansion tank, water pump, radiator, cooling pipeline, etc.

　　综合控制系统

　　Integrated control system

　　对发电机组的整体运行进行监测、控制和管理，包括电子管理系统（TEM）、自动电压调节器（AVR）、保护装置等。该系统可实时监测发动机的转速、温度、压力、电压等参数，实现自动启停、负荷调节、故障诊断和保护等功能，确保机组安全稳定运行。

　　Monitor, control, and manage the overall operation of the generator set, including electronic management system (TEM), automatic voltage regulator (AVR), protective devices, etc. This system can monitor the engine's speed, temperature, pressure, voltage and other parameters in real time, achieve automatic start stop, load adjustment, fault diagnosis and protection functions, and ensure the safe and stable operation of the unit.

　　这些系统相互配合，共同保障瓦斯发电机组的正常运行和高效发电。

　　These systems work together to ensure the normal operation and efficient power generation of gas generators.

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