瓦斯发电系统是集气、热、机、电于一体的一整套设备。利用煤矿废气发电，不仅可以变废为宝，满足煤矿的部分用电需求，还可以减少温室气体排放，提高煤矿安全系数。但是，受制于气源和使用环境的变化，气体发生器在使用过程中经常出现故障。这些故障主要分为：

Gas power generation system is a complete set of equipment integrating gas, heat, machinery and electricity. Using coal mine waste gas to generate electricity can not only turn waste into treasure and meet part of the power demand of coal mines, but also reduce greenhouse gas emissions and improve the safety factor of coal mines. However, due to the changes of gas source and service environment, the gas generator often fails in the process of use. These faults are mainly divided into:

1、气源故障：气体浓度和流量过低，输气管道上的气液分离器和干式阻火器堵塞，造成气体循环不畅，输气管道漏气等，与机组供气不足的现象统称为气源故障。

1. Gas source failure: the gas concentration and flow are too low, the gas-liquid separator and dry flame arrester on the gas transmission pipeline are blocked, resulting in poor gas circulation, gas leakage in the gas transmission pipeline, etc. together with the phenomenon of insufficient gas supply of the unit, it is collectively referred to as gas source failure.

2、机组故障：机组故障主要包括机组本体部件的损坏。如润滑系统漏油、进排气门损坏等。

2. Unit failure: unit failure mainly includes the damage of unit body components. For example, the lubricating system leaks oil and the intake and exhaust valves are damaged.

3、电气故障：电气故障主要有点火系统故障、电压低、二次线接触不良、开关损坏等。

3. Electrical failure: electrical failure mainly includes ignition system failure, low voltage, poor secondary line contact, switch damage, etc.

在上述三类故障中，机组故障尤为突出，约占故障总数的70%，故障发生后后果严重。

Among the above three types of faults, unit faults are particularly prominent, accounting for about 70% of the total number of faults, and the consequences are serious after the occurrence of faults.

瓦斯发电机组启动系统出现故障主要有以下几个原因：

The main reasons for the failure of the starting system of gas generator set are as follows:

1、启动电磁阀是否完好，电流电压是否正常。由于电磁阀内接线空间小，接线时容易造成断线，不易被发现。运行一段时间后，由于电线或端子氧化接触不良，电磁阀无法启动。

1. Whether the starting solenoid valve is intact and whether the current and voltage are normal. Due to the small wiring space in the solenoid valve, it is easy to cause disconnection during wiring, which is not easy to be found. After running for a period of time, the solenoid valve cannot be started due to poor oxidation contact of wires or terminals.

2、压缩空气压力是否正常，风筛内是否有积水、杂质、脏物等导致主启动阀堵塞打不开；

2. Whether the compressed air pressure is normal, and whether there is ponding, impurities, dirt, etc. in the air screen, which causes the main starting valve to be blocked and cannot be opened;

3、空气分配器是否工作良好，由于机组运行过程中振动大，油污不干净，空气分配器内的滑块边缘容易磨损，导致密封不良和漏气。此时，机组也会因启动压力不足而无法工作启动。

3. Whether the air distributor works well. Due to the large vibration and dirty oil during the operation of the unit, the edge of the slider in the air distributor is easy to wear, resulting in poor sealing and air leakage. At this time, the unit will also be unable to start due to insufficient starting pressure.

因此，对于机组故障的实时监测，故障的预警具有重要意义，针对机组故障中常见的启动故障，可设计了一种多特征量采集系统，并配合ds判据理论，实现对发电机组启动故障的诊断。关于这方面的内容您可以关注我们http://www.huannengpower.com详细了解。

Therefore, for the real-time monitoring of unit faults, the early warning of faults is of great significance. For the common start-up faults in unit faults, a multi feature acquisition system can be designed, and combined with the DS criterion theory to realize the diagnosis of generator unit start-up faults. You can pay attention to us about this aspect http://www.huannengpower.com Learn more.