瓦斯發(fā)電是抽取煤礦瓦斯發(fā)電，是一種相當(dāng)成熟的發(fā)電模式，利用瓦斯來發(fā)電，不僅為煤礦產(chǎn)能釋放提供了助力，還減少了瓦斯事故，降低了環(huán)境污染，可謂利國(guó)利民的大事。那么，瓦斯?jié)舛冗_(dá)到多少可以發(fā)電？要知道這個(gè)問題，還得先從瓦斯發(fā)電的原理談起：

　　Gas power generation is the extraction of coal mine gas for electricity generation, which is a relatively mature power generation mode. Using gas to generate electricity not only provides assistance for the release of coal mine production capacity, but also reduces gas accidents and environmental pollution. It can be said to be a major event that benefits the country and the people. So, how much gas concentration can generate electricity? To understand this issue, we need to start with the principle of gas power generation:

　　瓦斯發(fā)電是利用瓦斯發(fā)電機(jī)組爆炸做功，當(dāng)然要使瓦斯在內(nèi)燃機(jī)中保障，要具備一定的濃度范圍，我們把在空氣中瓦斯遇火后能引起爆炸的濃度范圍稱為瓦斯爆炸界限。瓦斯爆炸界限為5％～16％。

　　Gas power generation is the use of gas generator sets to produce electricity through explosions. Of course, it is necessary to ensure that the gas is contained within the internal combustion engine and has a certain concentration range. We refer to the concentration range within which gas can cause explosions when exposed to fire in the air as the gas explosion limit. The gas explosion limit is 5% to 16%.

　　當(dāng)瓦斯?jié)舛鹊陀?％時(shí)，遇火不爆炸，但能在火焰外圍形成燃燒層，當(dāng)瓦斯?jié)舛葹?．5％時(shí)，其爆炸威力最大(氧和瓦斯完全反應(yīng))；瓦斯?jié)舛仍?6％以上時(shí)，失去其爆炸性，但在空氣中遇火仍會(huì)燃燒。

　　When the gas concentration is below 5%, it does not explode when exposed to fire, but can form a combustion layer around the flame. When the gas concentration is 9.5%, its explosive power is maximum (oxygen and gas completely react); When the gas concentration is above 16%, it loses its explosiveness, but it will still burn when exposed to fire in the air.

　　瓦斯爆炸界限并不是固定不變的，它還受溫度、壓力以及煤塵、其它可燃性氣體、惰性氣體的混入等因素的影響。

　　The limit of gas explosion is not fixed and is also affected by factors such as temperature, pressure, and the mixing of coal dust, other flammable gases, and inert gases.

　　瓦斯?jié)舛冗_(dá)到多少可以發(fā)電？一般來說，瓦斯?jié)舛戎灰坏陀?%即可發(fā)電。因?yàn)橐话銇碚f，瓦斯的引火溫度為650℃～750℃，當(dāng)瓦斯?jié)舛仍?％一8％時(shí)，最易引燃；當(dāng)混合氣體的壓力增高時(shí)，引燃溫度即降低；在引火溫度相同時(shí)，火源面積越大、點(diǎn)火時(shí)間越長(zhǎng)，越易引燃瓦斯。

　　How much gas concentration can generate electricity? Generally speaking, as long as the gas concentration is not less than 7%, electricity can be generated. Generally speaking, the ignition temperature of gas is between 650 ℃ and 750 ℃. When the gas concentration is between 7% and 8%, it is most likely to ignite; When the pressure of the mixed gas increases, the ignition temperature decreases; When the ignition temperature is the same, the larger the area of the fire source and the longer the ignition time, the easier it is to ignite the gas.

　　高溫火源的存在，是引起瓦斯爆炸的必要條件之一。井下抽煙、電氣火花、違章放炮、煤炭自燃、明火作業(yè)等都易引起瓦斯爆炸。所以，在有瓦斯的礦井中作業(yè)，必須嚴(yán)格遵照《煤礦安全規(guī)程》的有關(guān)規(guī)定。

　　The presence of high-temperature ignition sources is one of the necessary conditions for causing gas explosions. Smoking underground, electrical sparks, illegal blasting, coal spontaneous combustion, and open flame operations can all easily cause gas explosions. So, when working in mines with gas, it is necessary to strictly follow the relevant provisions of the "Coal Mine Safety Regulations".

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