瓦斯發(fā)電系統是集氣、熱、機、電于一體的一整套設備。利用煤礦廢氣發(fā)電，不僅可以變廢為寶，滿(mǎn)足煤礦的部分用電需求，還可以減少溫室氣體排放，提高煤礦安全系數。但是，受制于氣源和使用環(huán)境的變化，氣體發(fā)生器在使用過(guò)程中經(jīng)常出現故障。這些故障主要分為：

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、氣源故障：氣體濃度和流量過(guò)低，輸氣管道上的氣液分離器和干式阻火器堵塞，造成氣體循環(huán)不暢，輸氣管道漏氣等，與機組供氣不足的現象統稱(chēng)為氣源故障。

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、機組故障：機組故障主要包括機組本體部件的損壞。如潤滑系統漏油、進(jìn)排氣門(mén)損壞等。

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、電氣故障：電氣故障主要有點(diǎn)火系統故障、電壓低、二次線(xiàn)接觸不良、開(kāi)關(guān)損壞等。

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

在上述三類(lèi)故障中，機組故障尤為突出，約占故障總數的70%，故障發(fā)生后后果嚴重。

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.

瓦斯發(fā)電機組啟動(dòng)系統出現故障主要有以下幾個(gè)原因：

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

1、啟動(dòng)電磁閥是否完好，電流電壓是否正常。由于電磁閥內接線(xiàn)空間小，接線(xiàn)時(shí)容易造成斷線(xiàn)，不易被發(fā)現。運行一段時(shí)間后，由于電線(xiàn)或端子氧化接觸不良，電磁閥無(wú)法啟動(dòng)。

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、壓縮空氣壓力是否正常，風(fēng)篩內是否有積水、雜質(zhì)、臟物等導致主啟動(dòng)閥堵塞打不開(kāi)；

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、空氣分配器是否工作良好，由于機組運行過(guò)程中振動(dòng)大，油污不干凈，空氣分配器內的滑塊邊緣容易磨損，導致密封不良和漏氣。此時(shí)，機組也會(huì )因啟動(dòng)壓力不足而無(wú)法工作啟動(dòng)。

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，對于機組故障的實(shí)時(shí)監測，故障的預警具有重要意義，針對機組故障中常見(jiàn)的啟動(dòng)故障，可設計了一種多特征量采集系統，并配合ds判據理論，實(shí)現對發(fā)電機組啟動(dòng)故障的診斷。關(guān)于這方面的內容您可以關(guān)注我們http://m.elmasticar.com詳細了解。

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://m.elmasticar.com Learn more.