Coalbed methane is called coal mine gas in coal mine. According to the new resource evaluation results, China's onshore CBM resources amount to 36.8 trillion cubic meters, which is equivalent to the onshore conventional natural gas resources (38 trillion cubic meters), second only to Russia and Canada. The main component of coalbed methane is methane. When the concentration of methane in the air reaches 5%-16%, it will explode in open fire, which is the source of coal mine gas explosion accident. The greenhouse effect of coal bed methane (CBM) is about 21 times that of carbon dioxide (CO2) when it is discharged directly into the atmosphere without application. Coal mine gas power generation can not only effectively deal with coal mine gas accidents and improve the safe consumption conditions of coal mine, but also help to increase clean energy supply and reduce greenhouse gas emissions, so as to achieve multiple purposes of maintaining life, resources and environment.
Conditions for application:
Low-concentration gas source conditions: low-concentration gas delivery pressure 5-15 kPa, pressure change rate less than 1 kPa/min, change rate less than 5%/min; impurity particle size less than 5 micron, impurity content less than 30 mg/Nm3, moisture content less than 40 mg/Nm3, free water, gas temperature 40 C, sulfur content 20 mg/Nm3.
Technical characteristics of products:
(1) Compliance with the gas concentration range of 8%-30%, suitable for the characteristics of large shaking of CBM gas source, can ensure the constant output power of the unit.
(2) Low concentration gas delivery system, using flame cold wall extinguishing, fire suppression, wet water seal and fire suppression, wet water mist delivery and other measures to ensure the safety of delivery, as for pipelines with long delivery interval, mixed water mist delivery can also be used to deal with.
(3) Using the closed-loop automatic control technology of electronic control mixer technology, the real-time control of the air ratio and ignition advance angle of the gas initiator can be completed, and the optimal control of the ignition advance angle can be completed through detonation monitoring, so that the initiator can work in a state and avoid the problems of the initiator such as detonation intake pipe tempering exhaust pipe firing.
(4) The ignition system consumed by ALTRONIC Company of the United States is adopted to obtain high ignition energy and accurate ignition time to ensure the safety and reliability of ignition.
(5) The low speed of the generator set reduces the wear of the starter, prolongs the service life of the parts and reduces the storage of spare parts;
(6) Double-layer water-cooled exhaust pipe structure, low exhaust temperature, plenty of quenching, average exhaust temperature of each cylinder.
(7) Coalbed methane (CBM) initiator has developed an intelligent management system for gas initiator, which can ensure safe and efficient operation of gas initiator and complete remote monitoring of gas initiator.
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