Low concentration gas power generation technology is mainly applied to internal combustion engine power generation, gas turbine power generation, and oxidation power generation. Due to the influence of coal mining technology, the concentration of gas extracted by high negative pressure systems and ground drilling is generally greater than 30%, mainly used for small gas turbines and high concentration internal combustion engines for power generation; The concentration of gas extracted by low negative pressure systems is generally lower than 30%, mainly used for low concentration internal combustion engine power generation; The concentration of exhaust gas (exhaust gas) in the mine return air shaft is usually below 1%. The mixture of low concentration gas and mine exhaust gas (or low concentration gas dilution gas) is mainly used to enter the thermal countercurrent reactor and catalytic oxidation reactor for oxidation power generation.

主要技術特點：

Main technical features:

通過利用水位自控水封阻火器金屬波紋帶瓦斯管道專用阻火器細水霧與煤礦抽放瓦斯混合輸送等阻火技術，為抽放瓦斯的安全輸送和利用創造了條件。

Through the use of water level self-control water seal flame arrester metal corrugated belt gas pipeline special flame arrester water mist and coal mine drainage gas mixed transmission and other fire prevention technology, it creates conditions for the safe transmission and utilization of drainage gas.

借助細水霧消防滅火機理，將細水霧與煤礦抽放瓦斯混合輸送，消除管道輸送過程中可能引起的靜電和管道由于自然或人為因素引起的火源。當輸送管道兩端產生火焰時，能在管道內迅速熄滅火焰而有效阻止火焰向前或向后傳播。

By utilizing the fire extinguishing mechanism of fine water mist, the fine water mist is mixed with coal mine drainage gas for transportation, eliminating potential static electricity and fire sources caused by natural or human factors during pipeline transportation. When flames are generated at both ends of the conveying pipeline, they can quickly extinguish the flame inside the pipeline and effectively prevent the flame from spreading forward or backward.

水霧在輸送管道內末端經脫水器與瓦斯分離，由水泵打壓循環使用，減少了系統的消耗水量。

The water mist is separated from the gas at the end of the conveying pipeline through a dehydrator, and is pressurized and recycled by a water pump, reducing the water consumption of the system.

瓦斯發電機組采用電控混合金屬波紋帶瓦斯管道阻火等技術，防回火措施有效，適應煤礦抽放瓦斯壓力濃度變化大的特點；采用自動控制系統進行監控，使機組運行較平穩，自動化程度較高。

The gas generator unit adopts technologies such as electrically controlled mixed metal corrugated belt gas pipeline fire resistance, effective anti backfire measures, and adapts to the characteristics of large changes in gas pressure and concentration during coal mine drainage; The use of an automatic control system for monitoring ensures smooth operation of the unit and a high degree of automation.

煤礦瓦斯發電，既可以有效地解決煤礦瓦斯事故改善煤礦安全生產條件，又有利于增加潔凈能源供應減少溫室氣體排放，達到保護生命保護資源保護環境的多重目標。  低濃度瓦斯發電需要解決2個問題，一是各個煤礦的本身不一樣，而且隨時都在變化，傳統的發電機組很難“以不變應萬變”；二是低濃度瓦斯的安全輸送問題。

Coal mine gas power generation can effectively solve coal mine gas accidents and improve coal mine safety production conditions. It is also conducive to increasing clean energy supply and reducing greenhouse gas emissions, achieving multiple goals of protecting life, resources, and the environment. Low concentration gas power generation needs to solve two problems: firstly, each coal mine itself is different and constantly changing, making it difficult for traditional power generation units to "adapt to changes with immutability"; The second issue is the safe transportation of low concentration gas.

低濃度瓦斯發電機組采用電控燃氣混合器技術，可以自動控制空燃比，以適應瓦斯的濃度變化，同時，低濃度瓦斯安全輸送技術，采用細水霧技術，解決了低濃度瓦斯的地面安全輸送問題。

The low concentration gas generator unit adopts electronic control gas mixer technology, which can automatically control the air fuel ratio to adapt to changes in gas concentration. At the same time, the low concentration gas safety transportation technology adopts fine water mist technology to solve the problem of ground safety transportation of low concentration gas.