低濃度瓦斯：發電機組的生存挑戰

Low concentration gas: a survival challenge for power generation units

面對甲烷濃度 5%-30% 的低濃度瓦斯，傳統發電機組往往因 "吃不飽" 而頻繁停機。山東中拓通過技術破解這一難題：

Faced with low concentration methane gas with a concentration of 5% -30%, traditional power generation units often shut down frequently due to "not having enough to eat". Shandong Zhongtuo solves this problem through technology:

氣源穩定網：在東大煤礦部署 KQ-1 型智能管理系統，通過前置傳感器提前 30 秒預警瓦斯濃度變化，結合應急氣源自動補給裝置，將機組運行穩定性提升至 99.5%。

Gas source stability network: The KQ-1 intelligent management system is deployed in Dongda Coal Mine, which provides 30 second advance warning of gas concentration changes through front sensors. Combined with an emergency gas source automatic supply device, the stability of the unit operation is improved to 99.5%.

燃燒優化網：采用電控燃氣混合器動態調節空燃比，在甲烷濃度 10%-15% 區間實現 42% 的發電效率，較傳統機組提升 12 個百分點。

Combustion Optimization Network: Using an electronically controlled gas mixer to dynamically adjust the air-fuel ratio, a power generation efficiency of 42% is achieved in the methane concentration range of 10% -15%, which is 12 percentage points higher than traditional units.

安全防護網：細水霧輸送系統將瓦斯爆炸極限從 5%-16% 壓縮至 8%-12%，配合負壓排水裝置，徹底消除 "飛車" 風險。

Safety protection net: The fine water mist conveying system compresses the gas explosion limit from 5% -16% to 8% -12%, combined with a negative pressure drainage device, completely eliminating the risk of "flying".

超低濃度瓦斯：發電機組的極限突破

Ultra low concentration gas: the ultimate breakthrough of power generation units

當瓦斯濃度低于 0.75% 時，傳統燃燒技術已無法自持。山東中拓的項目給出解決方案：

When the gas concentration is below 0.75%, traditional combustion technology is no longer self-sustaining. Shandong Zhongtuo's project provides a solution:

蓄熱式氧化爐：通過蜂窩陶瓷蓄熱體將乏風加熱至 850℃，甲烷銷毀率達 99%，每小時處理 108 萬立方米乏風產生的熱量可驅動 30 兆瓦蒸汽輪機發電。

Regenerative oxidation furnace: Heating the exhaust air to 850 ℃ through honeycomb ceramic thermal storage, the methane destruction rate reaches 99%, and the heat generated by processing 1.08 million cubic meters of exhaust air per hour can drive a 30 MW steam turbine for power generation.

催化燃燒技術：在晉城寺河煤礦，鉑鈀催化劑將氧化溫度降至 450℃，實現甲烷濃度 0.5% 的瓦斯穩定發電，系統熱效率達 88%。

Catalytic combustion technology: In the Sihe coal mine in Jincheng, platinum palladium catalyst reduces the oxidation temperature to 450 ℃, achieving stable power generation with methane concentration of 0.5%, and the system thermal efficiency reaches 88%.

政策驅動下的技術躍遷

Technological transition driven by policies

2025 年 4 月實施的《煤層氣 (煤礦瓦斯) 排放標準》要求，甲烷濃度高于 8% 且抽采純量大于 10 立方米 / 分鐘的瓦斯必須強制利用。這直接催生了新一代發電機組的技術迭代：

The "Coalbed Methane (Coal Mine Gas) Emission Standards" implemented in April 2025 require that gas with methane concentration higher than 8% and extraction purity greater than 10 cubic meters per minute must be forcibly utilized. This directly gave rise to the technological iteration of the new generation of generator sets:

智能協同控制：金駒煤電化公司構建的智慧管理平臺，將 11 個場站的 173 臺燃機數據實時整合，通過 AI 算法預測瓦斯濃度波動，實現機組負荷動態調整，發電效率提升 5%。

Intelligent collaborative control: The intelligent management platform built by Jinju Coal and Electricity Company integrates real-time data from 173 gas turbines in 11 stations, predicts gas concentration fluctuations through AI algorithms, dynamically adjusts unit loads, and improves power generation efficiency by 5%.

模塊化設計：勝利動力機械集團推出的 "瓦斯發電方艙"，集成燃氣預處理、燃燒控制、余熱回收模塊，可在 72 小時內完成低濃度瓦斯電站建設。

Modular design: The "Gas Power Generation Cabin" launched by Shengli Power Machinery Group integrates gas pretreatment, combustion control, and waste heat recovery modules, which can complete the construction of low concentration gas power plants within 72 hours.

很多公司都在共同進步，讓瓦斯利用到底。

Many companies are making progress together to fully utilize gas.

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