低濃度瓦斯：發(fā)電機(jī)組的生存挑戰(zhàn)

Low concentration gas: a survival challenge for power generation units

面對(duì)甲烷濃度 5%-30% 的低濃度瓦斯，傳統(tǒng)發(fā)電機(jī)組往往因 "吃不飽" 而頻繁停機(jī)。山東中拓通過技術(shù)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(wěn)定網(wǎng)：在東大煤礦部署 KQ-1 型智能管理系統(tǒng)，通過前置傳感器提前 30 秒預(yù)警瓦斯?jié)舛茸兓Y(jié)合應(yīng)急氣源自動(dòng)補(bǔ)給裝置，將機(jī)組運(yùn)行穩(wěn)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(yōu)化網(wǎng)：采用電控燃?xì)饣旌掀鲃?dòng)態(tài)調(diào)節(jié)空燃比，在甲烷濃度 10%-15% 區(qū)間實(shí)現(xiàn) 42% 的發(fā)電效率，較傳統(tǒng)機(jī)組提升 12 個(gè)百分點(diǎn)。

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(hù)網(wǎng)：細(xì)水霧輸送系統(tǒng)將瓦斯爆炸極限從 5%-16% 壓縮至 8%-12%，配合負(fù)壓排水裝置，徹底消除 "飛車" 風(fēng)險(xiǎn)。

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(fā)電機(jī)組的極限突破

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

當(dāng)瓦斯?jié)舛鹊陀?0.75% 時(shí)，傳統(tǒng)燃燒技術(shù)已無法自持。山東中拓的項(xiàng)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(fēng)加熱至 850℃，甲烷銷毀率達(dá) 99%，每小時(shí)處理 108 萬立方米乏風(fēng)產(chǎn)生的熱量可驅(qū)動(dòng) 30 兆瓦蒸汽輪機(jī)發(fā)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(shù)：在晉城寺河煤礦，鉑鈀催化劑將氧化溫度降至 450℃，實(shí)現(xiàn)甲烷濃度 0.5% 的瓦斯穩(wěn)定發(fā)電，系統(tǒng)熱效率達(dá) 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(qū)動(dòng)下的技術(shù)躍遷

Technological transition driven by policies

2025 年 4 月實(shí)施的《煤層氣 (煤礦瓦斯) 排放標(biāo)準(zhǔn)》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(qiáng)制利用。這直接催生了新一代發(fā)電機(jī)組的技術(shù)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(xié)同控制：金駒煤電化公司構(gòu)建的智慧管理平臺(tái)，將 11 個(gè)場(chǎng)站的 173 臺(tái)燃機(jī)數(shù)據(jù)實(shí)時(shí)整合，通過 AI 算法預(yù)測(cè)瓦斯?jié)舛炔▌?dòng)，實(shí)現(xiàn)機(jī)組負(fù)荷動(dòng)態(tài)調(diào)整，發(fā)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(shè)計(jì)：勝利動(dòng)力機(jī)械集團(tuán)推出的 "瓦斯發(fā)電方艙"，集成燃?xì)忸A(yù)處理、燃燒控制、余熱回收模塊，可在 72 小時(shí)內(nèi)完成低濃度瓦斯電站建設(shè)。

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(jìn)步，讓瓦斯利用到底。

Many companies are making progress together to fully utilize gas.

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