燃气发电机组：18万机组煤气混烧联合循环，破解工业尾气低效发电痛点

　　Gas generator set: 180000 units of gas co firing combined cycle, solving the pain point of low efficiency power generation caused by industrial exhaust gas

　　在钢铁行业能源循环利用体系中，高炉煤气、焦炉煤气作为产量庞大的工业副产尾气，长期存在粗放燃烧、能源利用率低、碳排放偏高的行业痛点，大量可燃尾气未能实现高效转化，既浪费资源又加重环保压力。而能源动力总厂二发电分厂的**18万燃气轮机组**，作为大功率联合循环燃气发电机组的标杆设备，彻底颠覆传统煤气发电模式，以高炉煤气为主、焦炉煤气混烧的燃料结构，搭配燃机+余热锅炉+蒸汽轮机联动工艺，实现工业尾气能源“吃干榨净”，发电效率远超常规机组，成为重工业煤气高效利用、节能降碳的核心装备。

　　In the energy recycling system of the steel industry, blast furnace gas and coke oven gas, as industrial by-products with large output, have long been industry pain points such as extensive combustion, low energy utilization rate, and high carbon emissions. A large amount of combustible tail gas has not been efficiently converted, which not only wastes resources but also increases environmental pressure. The 180000 yuan gas turbine unit of the Second Power Generation Branch of the Energy and Power Plant, as a benchmark equipment for high-power combined cycle gas generator units, completely subverts the traditional gas power generation mode. It uses blast furnace gas as the main fuel and coke oven gas mixed combustion fuel structure, combined with gas turbine+waste heat boiler+steam turbine linkage process, to achieve the "dry extraction" of industrial exhaust gas energy, with power generation efficiency far exceeding conventional units, becoming the core equipment for efficient utilization, energy conservation and carbon reduction of heavy industry gas.

　　18万机组核心架构：工业煤气变绿电的硬核载体

　　180000 Unit Core Architecture: Hard Core Carrier for Industrial Gas to Green Electricity Conversion

　　这款18万级燃气发电机组，是专为钢铁厂副产煤气量身打造的联合循环发电设备，区别于普通内燃式燃气机组，采用燃气轮机与蒸汽轮机双机联动模式，整体集成度高、功率稳定，适配高炉煤气低热值、组分波动的特性，完美解决常规燃气机组无法高效利用低热值煤气的行业难题。机组额定功率达18万千瓦，可规模化消化厂区富余高炉煤气与焦炉煤气，无需额外消耗化石燃料，真正实现工业尾气资源化闭环利用，既解决煤气排空、火炬燃烧的环保问题，又为厂区提供稳定清洁电力，兼顾环保效益与经济效益。

　　This 180000 level gas generator set is a combined cycle power generation equipment specially designed for the by-product gas of steel plants. Unlike ordinary internal combustion gas generators, it adopts a dual machine linkage mode of gas turbine and steam turbine, with high overall integration and stable power. It is suitable for the characteristics of low calorific value and component fluctuation of blast furnace gas, perfectly solving the industry problem that conventional gas generators cannot efficiently utilize low calorific value gas. The rated power of the unit reaches 180000 kilowatts, which can digest surplus blast furnace gas and coke oven gas in the factory area on a large scale without the need for additional consumption of fossil fuels, truly realizing the closed-loop utilization of industrial exhaust gas resources. It not only solves the environmental problems of gas discharge and torch combustion, but also provides stable and clean electricity for the factory area, balancing environmental and economic benefits.

　　全流程发电原理：联合循环高效转化，无能源浪费

　　Principle of full process power generation: efficient conversion of combined cycle, no energy waste

　　整套燃气发电机组发电流程环环相扣，遵循“煤气升压-燃机做功-余热回收-蒸汽补功”的联合循环逻辑，每一步都实现能源高效转化，无多余热量损耗。首先，将高炉煤气作为主力燃料，按需掺入少量高热值焦炉煤气优化燃料结构，通过专用煤气压缩机完成升压处理，保障气体输送压力稳定，满足燃气轮机燃烧工况要求；随后，升压后的混合煤气进入燃气轮机燃烧室充分燃烧，产生高温高压气流，直接驱动燃气轮机高速旋转，同步带动燃机侧发电机完成第一轮发电，这也是机组核心发电环节。

　　The entire power generation process of the gas generator set is interconnected, following the combined cycle logic of "gas boosting - gas turbine power generation - waste heat recovery - steam power replenishment", achieving efficient energy conversion at each step without excess heat loss. Firstly, blast furnace gas is used as the main fuel, and a small amount of high calorific value coke oven gas is added as needed to optimize the fuel structure. The pressure is increased through a dedicated gas compressor to ensure stable gas delivery pressure and meet the requirements of gas turbine combustion conditions; Subsequently, the boosted mixed gas enters the combustion chamber of the gas turbine for full combustion, generating high-temperature and high-pressure airflow, which directly drives the gas turbine to rotate at high speed and synchronously drives the generator on the gas turbine side to complete the first round of power generation, which is also the core power generation link of the unit.

　　燃机做功后排出的高温尾气，并非直接排放，而是输送至配套余热锅炉，利用尾气余热加热锅炉内部给水，余热锅炉无额外明火燃烧，纯靠尾气余热换热，将冷水逐步加热形成高压蒸汽，汇集至顶部汽包稳压储能；最后，汽包输出的高压蒸汽回送至蒸汽轮机，推动蒸汽轮机运转，带动蒸汽侧发电机完成第二轮发电，通过燃气循环、蒸汽循环双重做功，实现联合循环高效发电，大幅提升整体能源利用率。

　　The high-temperature exhaust gas discharged from the gas turbine after doing work is not directly discharged, but is transported to the supporting waste heat boiler, which uses the waste heat of the exhaust gas to heat the internal water supply of the boiler. The waste heat boiler does not have additional open flame combustion, and relies solely on the heat exchange of the exhaust gas waste heat to gradually heat the cold water into high-pressure steam, which is collected in the top steam drum for stable energy storage; Finally, the high-pressure steam output from the steam drum is sent back to the steam turbine, which drives the steam turbine to operate and drives the steam side generator to complete the second round of power generation. Through the dual work of the gas cycle and steam cycle, efficient combined cycle power generation is achieved, greatly improving the overall energy utilization efficiency.

　　机组核心优势：适配工业尾气，高效降本又低碳

　　Core advantages of the unit: adaptation to industrial exhaust gas, efficient cost reduction and low-carbon

　　相较于常规燃气发电机组，这款18万机组优势突出，针对钢铁厂煤气特性专项优化，低热值高炉煤气适配性强，混烧焦炉煤气可灵活调节燃烧效率，机组运行稳定，可24小时连续满负荷作业，发电效率较常规煤气发电机组提升30%以上。同时，联合循环模式实现余热100%回收利用，无热量排空损耗，大幅降低单位发电能耗，每发一度电可减少对应火电的煤炭消耗，碳减排效果显著。

　　Compared to conventional gas generator sets, this 180000 yuan unit has outstanding advantages. It is specially optimized for the gas characteristics of steel plants, with strong adaptability to low calorific value blast furnace gas and flexible adjustment of combustion efficiency for co fired coke oven gas. The unit operates stably and can operate continuously at full load for 24 hours. The power generation efficiency is increased by more than 30% compared to conventional gas generator sets. At the same time, the combined cycle mode achieves 100% recovery and utilization of waste heat, with no heat dissipation loss, significantly reducing the energy consumption per unit of power generation. Each kilowatt hour of electricity generated can reduce the corresponding coal consumption of thermal power, and the carbon emission reduction effect is significant.

　　整套机组自动化程度高，煤气升压、燃烧、余热回收、蒸汽发电全流程智能调控，无需大量人工值守，运维成本低，既能大规模消化工业副产煤气，解决尾气处理难题，又能为厂区提供大功率稳定电力，减少外购电费支出，是重工业能源动力厂实现绿色转型、节能降本的标杆燃气发电设备，彻底打通工业尾气到清洁电力的转化全链路。

　　The entire unit has a high degree of automation, with intelligent control of the entire process of gas boosting, combustion, waste heat recovery, and steam power generation. It does not require a large number of manual personnel, and has low operation and maintenance costs. It can not only digest industrial by-product gas on a large scale, solve the problem of tail gas treatment, but also provide high-power stable electricity for the factory area, reducing external electricity expenses. It is a benchmark gas power generation equipment for heavy industry energy power plants to achieve green transformation, energy conservation, and cost reduction, completely connecting the entire chain of industrial tail gas to clean electricity conversion.

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