定義與分類

Definition and classification

燃氣發電機組是一種將燃氣的化學能轉化為電能的設備 ，是適應環保要求和市場新環境而開發的新型發電機組。主要分為兩種：

Gas turbine generator set is a device that converts the chemical energy of gas into electrical energy, and is a new type of generator set developed to meet environmental protection requirements and the new market environment. There are mainly two types:

聯合循環燃氣輪機：功率較大，一般用于大、中型電站。

Combined cycle gas turbine: With high power, it is generally used in large and medium-sized power plants.

燃氣內燃機：功率相對較小，主要應用于小型的分布式電站 。

Gas internal combustion engine: With relatively low power, it is mainly used in small distributed power plants.

工作原理

Working principle

往復式燃氣發電機組的主要設備是燃氣發動機和交流發電機，并配備進氣燃氣系統、冷卻系統、潤滑系統、控制系統等輔助裝置。以瓦斯發電為例，其原理是瓦斯氣體進入燃氣發動機汽缸內燃燒，產生的動力驅動發動機曲軸旋轉，曲軸將動力傳遞給交流發電機，發電機運轉后將動力轉換為電能輸出 。燃燒后產生的高溫煙氣，可排入大氣或送入余熱鍋爐回收熱能再利用。

The main equipment of a reciprocating gas generator set is a gas engine and an AC generator, equipped with auxiliary devices such as an intake gas system, cooling system, lubrication system, and control system. Taking gas power generation as an example, its principle is that gas enters the cylinder of a gas engine and burns, generating power that drives the engine crankshaft to rotate. The crankshaft transmits the power to an AC generator, which then converts the power into electrical energy output. The high-temperature flue gas generated after combustion can be discharged into the atmosphere or sent to a waste heat boiler for heat recovery and reuse.

優點

advantage

發電質量優：工作時僅旋轉運動，電調反應迅速，運行平穩。輸出電壓和頻率精度高、波動小，在突加或突減 50% 和 75% 負載時，運行穩定性優于柴油發電機組。

Excellent power generation quality: only rotating during operation, with rapid response and smooth operation of the electric control system. The output voltage and frequency have high accuracy and small fluctuations. When the load suddenly increases or decreases by 50% and 75%, the operational stability is better than that of diesel generator sets.

啟動性能好：冷態啟動成功后到滿負載僅需 30 秒鐘，能在任何環境溫度和氣候下保證啟動成功率 ，相比之下，國際規定柴油發電機啟動成功后 3 分鐘才能帶負載。

Good starting performance: After successful cold start, it only takes 30 seconds to reach full load, which can ensure the success rate of starting in any environmental temperature and climate. In contrast, international regulations require diesel generators to be loaded after 3 minutes of successful start.

噪聲低振動小：燃汽輪機處于高速旋轉狀態，振動小，低頻噪聲優于柴油發電機組。

Low noise and low vibration: The gas turbine is in a high-speed rotating state, with low vibration and better low-frequency noise than diesel generator sets.

燃料清潔廉價：可使用瓦斯氣、桔梗氣、沼氣等清潔、廉價的可燃性氣體，不僅運行可靠、成本低，還能變廢為寶，減少污染。

Clean and inexpensive fuel: Clean and inexpensive combustible gases such as gas, platycodon gas, biogas, etc. can be used, which not only run reliably and have low costs, but also turn waste into treasure and reduce pollution.

注意事項

precautions

機房要求：機房應遠離明火區域，保持寬敞、明亮，安裝換氣扇保證良好通風；室內照明、開關、線路及其電器應采用防爆措施且固定牢固；應符合消防要求，配備滅火器等消防器械；安裝可燃氣體報警裝置，及時發現氣體泄漏。

Computer room requirements: The computer room should be kept away from open flame areas, spacious and bright, and equipped with ventilation fans to ensure good ventilation; Indoor lighting, switches, circuits, and their electrical appliances should adopt explosion-proof measures and be firmly fixed; Should meet fire safety requirements and be equipped with fire extinguishers and other firefighting equipment; Install combustible gas alarm devices to promptly detect gas leaks.

安裝要求：安裝時底盤與地基需用平墊鐵找平，接觸面積在 60% 以上且分布均勻。

Installation requirements: During installation, the chassis and foundation need to be leveled with a flat pad iron, with a contact area of over 60% and evenly distributed.

管路要求：60kw 以下單臺燃氣發動機燃氣管路的外部主要管道內徑應不小于 2 吋，靠近發動機部分內徑應不小于 1 吋；60kw 以上燃氣發電機組則分別是 3 吋和 2 吋。必須安裝燃氣閥門（不銹鋼球閥）、型放水閥、防回火裝置 ，燃氣管路焊接完成后需用高壓空氣清理焊渣。

Pipeline requirements: The inner diameter of the external main pipeline of the gas pipeline of a single gas engine below 60kw should not be less than 2 inches, and the inner diameter of the part near the engine should not be less than 1 inch; Gas generators with a power of over 60kW are 3 inches and 2 inches respectively. Gas valves (stainless steel ball valves), type drain valves, and anti backfire devices must be installed. After welding the gas pipeline, high-pressure air is required to clean the welding slag.

燃氣要求：燃氣必須進行脫硫、脫水、除塵處理，其中含流量≤0.25Nm，氫氣≤10%

Gas requirements: Gas must undergo desulfurization, dehydration, and dust removal treatment, with a flow rate of ≤ 0.25Nm and hydrogen gas of ≤ 10%

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