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2023.12.19
天然氣發(fā)電機(jī)組和和柴油發(fā)電機(jī)組有什么不同？
一、發(fā)電機(jī)組燃料的系統(tǒng)不一樣
1、 The fuel system of the generator set is different
燃油發(fā)電機(jī)組恐怕只要一個(gè)油箱加上一個(gè)油泵就可以把燃料送入到發(fā)動(dòng)機(jī)里去燃燒，天然氣發(fā)電機(jī)組就不是同了，他們要考慮到安全性，進(jìn)燃料系統(tǒng)包括電磁閥、燃?xì)饣旌掀?、阻火器等?/div>
A fuel generator set may only need a fuel tank and an oil pump to send fuel into the engine for combustion, while a natural gas generator set is different. They need to consider safety, and the fuel system includes solenoid valves, gas mixers, flame arresters, etc.
二、發(fā)電機(jī)組燃燒方式不一樣
2、 The combustion method of the generator set is different
燃油是壓燃著火做功，天然氣發(fā)電機(jī)組是靠高壓線圈，火花塞點(diǎn)火燃燒做功也就是著火不同，但是天然氣發(fā)電機(jī)組是通過(guò)點(diǎn)火模塊，燃油發(fā)電機(jī)組是沒有點(diǎn)火模塊的。
Fuel works through compression ignition, while natural gas generators rely on high-voltage coils and spark plugs for ignition and combustion, which is different from ignition. However, natural gas generators use ignition modules, while fuel generators do not have ignition modules.
三、關(guān)鍵部件
3、 Key components
天然氣發(fā)動(dòng)機(jī)凸輪軸與柴油機(jī)線型不同，柴油機(jī)氣門重疊角是128°，這樣可以有較充足的掃氣時(shí)間可以把氣門、氣缸、氣缸蓋這些高溫部件的溫度降下來(lái)，而天然氣發(fā)動(dòng)機(jī)的氣門重疊角是22°，掃氣只能通過(guò)活塞推出，不能大面積掃氣，這也是燃?xì)鈾C(jī)排溫比柴油機(jī)高許多的其中一個(gè)原因。
The camshaft of a natural gas engine is different from that of a diesel engine. The valve overlap angle of a diesel engine is 128 °, which allows for sufficient scavenging time to lower the temperature of high-temperature components such as valves, cylinders, and cylinder heads. However, the valve overlap angle of a natural gas engine is 22 °, and scavenging can only be pushed out through the piston and cannot be carried out on a large area. This is also one of the reasons why the exhaust temperature of a gas engine is much higher than that of a diesel engine.
四、關(guān)鍵部件天然氣發(fā)電機(jī)組采用盆型結(jié)構(gòu)有兩個(gè)原因
4、 There are two reasons why the natural gas generator set, a key component, adopts a basin structure
可以減小壓縮比。天然氣發(fā)電機(jī)組的壓縮比不能太大，否則容易爆燃而且天然氣發(fā)動(dòng)機(jī)沒有像柴油機(jī)那樣要求油和空氣在燃燒室內(nèi)形成氣相混合物，所以，它的活塞頂部為平形的而且由于天然氣發(fā)動(dòng)機(jī)燃燒室溫度比柴油機(jī)高許多，如果做成各種形狀那么邊緣、底臺(tái)以及口緣處會(huì)因持續(xù)高溫而燒壞。
Can reduce compression ratio. The compression ratio of natural gas generator sets should not be too high, otherwise they are prone to detonation. Natural gas engines do not require oil and air to form a gas-phase mixture in the combustion chamber like diesel engines do. Therefore, the top of its piston is flat, and due to the much higher temperature in the combustion chamber of natural gas engines compared to diesel engines, if made into various shapes, the edges, bottom, and mouth will be burned out due to continuous high temperatures.
五、兩種發(fā)電機(jī)組的燃料不一樣
5、 The fuel of the two generator sets is different
天然氣發(fā)電機(jī)組主要是燒氣體，柴油發(fā)電機(jī)組主要是燃燒液體狀的油，比如柴油、汽油、重油等。這是其中的一點(diǎn)區(qū)別。
Natural gas generators mainly burn gas, while diesel generators mainly burn liquid oil, such as diesel, gasoline, heavy oil, etc. This is one of the differences.
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