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Gas Generator

Brief introduction of gas generator set

Gas (coal bed gas) generating set is a gas generating unit which uses low concentration gas and high concentration gas to generate electricity. The gas generator set produced by Ji'nan watt can use gas power with concentration greater than 12%, which is mainly used in coal mine gas and mine gas power generation. The unit uses a new gas engine design concept, the independent research and development, the development of the system, advanced, world-class booster, speed control, voltage regulator, ignition and operation management system, integrated control, electric mixer and other cutting-edge technology patents currently burning within the industry, can automatically control the air-fuel ratio, in order to adapt to the change of gas concentration suitable for China's coal mine, more than a small amount of features. The unit has the characteristics of high safety, high reliability, high heat efficiency, high performance price ratio and fully automatic operation management.

First, gas introduction
Coalbed methane in coal mine for coal mine gas, gas resources according to the evaluation results as the new China's onshore coalbed gas resources amount of 36 trillion and 800 billion cubic meters, and the amount of onshore conventional natural gas resources (38 trillion cubic meters), next only to Russia and canada. The main component of coal-bed methane is methane, methane concentrations in the air reaches 5%16%, the case of fire will explode, which is the source of coal mine gas explosion.
The coal bed gas is directly discharged into the atmosphere without its utilization, and its greenhouse effect is about 21 times of that of carbon dioxide. Coal mine gas power generation, which can effectively solve the coal mine accidents, improve coal mine safety production conditions, but also conducive to increase clean energy supply, reduce greenhouse gas emissions, to achieve multiple objectives of protecting life, protect resources and protect the environment.
(1) low concentration gas power generation technology
High concentration gas and low concentration gas in coal mine gas, high concentration gas refers to gas (methane) concentration is greater than 25% of the gas, low concentration gas refers to gas concentration below 25% of the gas. More than 60% of the gas in our country is low concentration gas containing methane below 25%. According to the coal mine safety regulation requirements, the gas concentration below 25% can not be stored and transported.
Low concentration gas power generation needs to solve 2 problems, one is the coal itself is not the same, and changes all the time, it is difficult for traditional generators; maintaining the status quo, the two is safe transport of low concentration gas.
Shandong Ji'nan watts Electromechanical Equipment Co. Ltd relying on the leading technology in jichai and Shengdong gas engine field, developed the first high concentration gas turbine performance, and the subsequent development of low concentration gas in large power generator can be applied to low concentration gas, has become one of the first to master the low concentration gas turbine technology manufacturers. Among them, 500KW high and low concentration gas generator sets and 600KW high and low concentration gas generator sets have the most excellent performance and high performance price ratio. The electronic control unit of gas mixer technology, can automatically control the air-fuel ratio, in order to adapt to the change of gas concentration, suitable for coal mine in China more than a small amount of features, at the same time, the invention of the transportation technology of low concentration gas safety, using water mist technology, solves the problem of low concentration gas transportation safety.
(two) basic requirements of low concentration gas power generation
First of all, according to the State Administration of coal mine safety requirements for the installation of gas drainage system and gas drainage system to normal operation; secondly, the gas drainage system of pure gas drainage volume in 1 million m3/ years, the gas concentration in the 6-25%. To achieve these 2 conditions can have the basis of building gas power station, if the construction of gas power station can be achieved; to promote the use of pumping, pumping to promote safety; coal mine virtuous cycle development.
Classification of high and low concentration gas:
High concentration gas and low concentration gas in coal mine gas, high concentration gas refers to gas (methane) concentration is greater than 25% of the gas, low concentration gas refers to gas concentration below 25% of the gas. More than 60% of the gas in our country is low concentration gas containing methane below 25%. According to the coal mine safety regulation requirements, the gas concentration below 25% can not be stored and transported.
Basic requirements of low concentration gas power generation:
1, according to the requirements of the national coal mine safety management department installed gas drainage system, and gas drainage system must be normal operation;
2, the gas extraction system pure gas extraction volume in about 1 million m3/ years, gas concentration between 6-25%.
Unit gas requirements:
Within the gas inlet valve 1m of the gas generator set
1, the gas temperature are less than 40;
2, the gas pressure is 3 ~ 20KPa, pressure change rate is less than 1kpa/min;
3, H2S = 200mg/Nm3;
4, for CH4 volume content, high concentration gas generator set methane content is more than 25%, low concentration gas generator set methane content in 12%-25% can start normally.
40g/N m3 is less than or equal to 5 moisture content, gas
6, impurity particle size less than or equal to m, the impurity content is less than 30mg/N m3.
If the high content of sulfur and ammonia components of combustible gas, not only serious corrosion of spark plug electrodes, and the acid value of oil in the internal parts and units increased corrosion, easy to produce precipitate, increase of engine wear and corrosion.
Our company can be configured according to the actual needs of customers, a single set of power covering 100KW-800kw gas generator set. For the project with more than 1MW installed capacity, we recommend that customers use more than 500KW units connected to the grid, the highest comprehensive performance price ratio. The operation of the power station is more stable, convenient maintenance and low maintenance cost