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一、生物質氣發電機組發電方式:生物質氣化發電可通過三種途徑實現:生物質氣化產生燃氣作為燃料直接進入燃氣鍋爐生產蒸汽,再驅動蒸汽輪機發電;也可將凈化后的燃氣送給燃氣輪機燃燒發電;還可以將凈化后的燃氣送入內燃機直接發電。在發電和投資規模上,它們分別對應于大規模、中等規模和小規模的發電。
1、 The power generation method of biomass gas generator set: Biomass gasification power generation can be achieved through three ways: biomass gasification produces gas as fuel, which directly enters the gas boiler to produce steam, and then drives the steam turbine to generate electricity; The purified gas can also be sent to a gas turbine for combustion and power generation; The purified gas can also be sent to the internal combustion engine for direct power generation. In terms of power generation and investment scale, they correspond to large-scale, medium scale, and small-scale power generation, respectively.
在商業上最為成功的生物質氣化內燃發電技術,由于具有裝機容量小、布置靈活、投資少、結構緊湊、技術可靠、運行費用低廉、經濟效益顯著、操作維護簡單和對燃氣質量要求較低等特點,而得到廣泛的推廣與應用。
The most successful biomass gasification internal combustion power generation technology in business has been widely promoted and applied due to its small installed capacity, flexible layout, low investment, compact structure, reliable technology, low operating costs, significant economic benefits, simple operation and maintenance, and low requirements for gas quality.
二、生物質氣發電機組成成分:生物質氣化內燃發電系統主要由氣化爐、燃氣凈化系統和內燃發電機等組成:氣化爐是將生物質能由固態轉化為燃氣的裝置。生物質在氣化爐內通過控制空氣供應量,而進行不完全燃燒,實現低值生物質能由固體向氣態的轉化,生成包含氫氣(H2)、一氧化碳(CO)、甲烷(CH4)、多碳烴(CnHm)等可燃成分的燃氣,完成生物質的氣化過程。
2、 Composition of biomass gas generator: The biomass gasification internal combustion power generation system mainly consists of a gasifier, a gas purification system, and an internal combustion generator. The gasifier is a device that converts biomass energy from solid state to gas. Biomass undergoes incomplete combustion in a gasifier by controlling the air supply, achieving the conversion of low value biomass energy from solid to gas, generating combustible gases including hydrogen (H2), carbon monoxide (CO), methane (CH4), and hydrocarbons (CnHm), completing the gasification process of biomass.
氣化產生的燃氣出口溫度隨氣化爐型式的不同,在350℃~650℃之間,并且燃氣中含有未完全裂解的焦油及灰塵等雜質,為滿足內燃機長期可靠工作的要求,需要對燃氣進行冷卻和凈化處理,使燃氣溫度降到40℃以下、焦油灰塵含量控制在50mg/Nm3以內,燃氣經過凈化后,再進入內燃機發電。
The outlet temperature of the gas generated by gasification varies depending on the type of gasifier, ranging from 350 ℃ to 650 ℃. The gas also contains impurities such as incompletely cracked tar and dust. In order to meet the long-term reliable operation requirements of internal combustion engines, it is necessary to cool and purify the gas to reduce the temperature to below 40 ℃ and control the tar and dust content within 50mg/Nm3. After purification, the gas enters the internal combustion engine for power generation.
在內燃機內,燃氣混合空氣燃燒做功,驅動主軸高速轉動,主軸再帶動發電機進行發電。
In an internal combustion engine, the mixture of gas and air burns to do work, driving the main shaft to rotate at high speed, which in turn drives the generator to generate electricity.
生物質氣化內燃發電就是通過以上過程,將各種廢棄物化廢為寶,轉化為優質電能,解決廢棄物的污染和能源的合理利用問題。
Biomass gasification internal combustion power generation is the process of turning various waste materials into treasure, converting them into high-quality electricity, and solving the problems of waste pollution and rational energy utilization.
三、生物質氣發電機組的組成與工作原理
3、 Composition and Working Principle of Biomass Gas Generator Unit
1. 系統組成
1. System composition
生物質氣化單元:將生物質轉化為生物質氣,包括氣化爐(如固定床、流化床等)、凈化裝置(去除焦油、灰塵、硫化物等雜質)。
Biomass gasification unit: converting biomass into biomass gas, including gasification furnaces (such as fixed beds, fluidized beds, etc.), purification devices (removing impurities such as tar, dust, sulfides, etc.).
燃氣發電單元:利用生物質氣驅動發電機發電,主要有以下類型:
Gas power generation unit: using biomass gas to drive generators for power generation, mainly including the following types:
內燃機發電機組:通過燃氣內燃機燃燒生物質氣驅動發電機,技術成熟、啟動靈活,適用于中小功率(通常 50-5000 kW)。
Internal combustion engine generator set: The generator is driven by burning biomass gas through a gas internal combustion engine, with mature technology and flexible start-up, suitable for small and medium power (usually 50-5000 kW).
燃氣輪機發電機組:利用燃氣輪機高溫高壓燃氣推動渦輪做功發電,效率較高,適合大功率(1000 kW 以上)場景,但對氣體純度要求較高。
Gas turbine generator set: using high-temperature and high-pressure gas from a gas turbine to drive the turbine to do work and generate electricity, with high efficiency, suitable for high-power (over 1000 kW) scenarios, but with high requirements for gas purity.
燃料電池:通過電化學反應直接將化學能轉化為電能,效率高、污染小,目前尚處于研發和示范階段。
Fuel cell: It directly converts chemical energy into electrical energy through electrochemical reactions, with high efficiency and low pollution. Currently, it is still in the research and demonstration stage.
輔助系統:包括燃料供給系統、冷卻系統、控制系統、并網系統等。
Auxiliary systems: including fuel supply system, cooling system, control system, grid connected system, etc.
2. 工作原理
2. Working principle
生物質經氣化爐轉化為生物質氣,凈化后進入發動機(或燃氣輪機)燃燒,產生的機械能驅動發電機轉子旋轉,切割磁感線產生電能,最后通過并網裝置將電能輸送至電網或供用戶使用。
Biomass is converted into biomass gas through a gasifier, purified and then enters the engine (or gas turbine) for combustion. The generated mechanical energy drives the rotor of the generator to rotate, cutting magnetic induction lines to generate electrical energy. Finally, the electrical energy is transmitted to the grid or used by users through a grid connected device.
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This article is a friendly contribution from a biogas generator set For more information, please click: http://www.qhjingbai.com We will provide detailed answers to your questions. You are welcome to log in to our website and leave a message
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