瓦斯發(fā)電系統(tǒng)是集氣、熱、機(jī)、電于一體的一整套設(shè)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(shù)。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(xiàn)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(jī)組供氣不足的現(xiàn)象統(tǒng)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(jī)組故障：機(jī)組故障主要包括機(jī)組本體部件的損壞。如潤(rùn)滑系統(tǒng)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(tǒng)故障、電壓低、二次線接觸不良、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(jī)組故障尤為突出，約占故障總數(shù)的70%，故障發(fā)生后后果嚴(yán)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(jī)組啟動(dòng)系統(tǒng)出現(xiàn)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(nèi)接線空間小，接線時(shí)容易造成斷線，不易被發(fā)現(xiàn)。運(yùn)行一段時(shí)間后，由于電線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(nèi)是否有積水、雜質(zhì)、臟物等導(dǎo)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(jī)組運(yùn)行過(guò)程中振動(dòng)大，油污不干凈，空氣分配器內(nèi)的滑塊邊緣容易磨損，導(dǎo)致密封不良和漏氣。此時(shí)，機(jī)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(duì)于機(jī)組故障的實(shí)時(shí)監(jiān)測(cè)，故障的預(yù)警具有重要意義，針對(duì)機(jī)組故障中常見(jiàn)的啟動(dòng)故障，可設(shè)計(jì)了一種多特征量采集系統(tǒng)，并配合ds判據(jù)理論，實(shí)現(xiàn)對(duì)發(fā)電機(jī)組啟動(dòng)故障的診斷。關(guān)于這方面的內(nèi)容您可以關(guān)注我們http://www.pp198.cn詳細(xì)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.pp198.cn Learn more.