1. 根據(jù)瓦斯?jié)舛冗x “發(fā)動(dòng)機(jī)類型”

1. Select "engine type" based on gas concentration

低濃度瓦斯（5%-30%）由于甲烷含量較低，需要選擇專門設(shè)計(jì)的 “低濃度瓦斯發(fā)動(dòng)機(jī)”，這類發(fā)動(dòng)機(jī)采用預(yù)混燃燒技術(shù)，能在瓦斯?jié)舛炔▌?dòng)時(shí)穩(wěn)定運(yùn)行；高濃度瓦斯（30% 以上）則可以使用常規(guī)的氣體發(fā)動(dòng)機(jī)，但需注意配置可靠的防爆裝置，確保燃燒安全。

Low concentration gas (5% -30%) requires a specially designed "low concentration gas engine" due to its low methane content. This type of engine uses premixed combustion technology and can operate stably when the gas concentration fluctuates; Conventional gas engines can be used for high concentration gas (over 30%), but reliable explosion-proof devices should be installed to ensure combustion safety.

2. 根據(jù)用電需求定 “功率大小”

2. Determine the "power size" based on electricity demand

首先計(jì)算所有用電設(shè)備的總功率，包括同時(shí)運(yùn)行的大功率設(shè)備（如水泵、電機(jī)）。發(fā)電機(jī)組的額定功率應(yīng)比總負(fù)載高 20%-30%，以應(yīng)對(duì)設(shè)備啟動(dòng)時(shí)的瞬時(shí)電流。例如，總負(fù)載為 1000 千瓦的礦區(qū)，建議選擇 1200-1500 千瓦的機(jī)組，避免長(zhǎng)期過載導(dǎo)致設(shè)備壽命縮短。

Firstly, calculate the total power of all electrical equipment, including high-power devices running simultaneously (such as water pumps and motors). The rated power of the generator set should be 20% -30% higher than the total load to cope with the instantaneous current during equipment start-up. For example, in a mining area with a total load of 1000 kilowatts, it is recommended to choose units with a capacity of 1200-1500 kilowatts to avoid long-term overload and shorten equipment life.

3. 關(guān)注 “排放處理” 與 “效率參數(shù)”

3. Pay attention to "emission treatment" and "efficiency parameters"

雖然瓦斯燃燒比煤炭清潔，但仍需處理氮氧化物等污染物。選擇配備尾氣處理裝置的機(jī)組，確保排放符合當(dāng)?shù)丨h(huán)保要求（如氮氧化物濃度低于 500 毫克 / 立方米）。同時(shí)，發(fā)電效率是重要指標(biāo)，高效機(jī)組的發(fā)電效率可達(dá) 35%-40%，意味著每立方米瓦斯能發(fā)出更多的電，長(zhǎng)期使用更節(jié)省燃料。

Although gas combustion is cleaner than coal, pollutants such as nitrogen oxides still need to be treated. Select units equipped with exhaust gas treatment devices to ensure emissions meet local environmental requirements (such as nitrogen oxide concentrations below 500 milligrams per cubic meter). At the same time, power generation efficiency is an important indicator, and the power generation efficiency of high-efficiency units can reach 35% -40%, which means that more electricity can be generated per cubic meter of gas, and long-term use is more fuel-efficient.

4. 考慮 “安裝環(huán)境” 與 “配套設(shè)施”

4. Consider "installation environment" and "supporting facilities"

發(fā)電機(jī)組需要安裝在通風(fēng)良好、遠(yuǎn)離明火的場(chǎng)所，地面需做硬化處理，防止設(shè)備振動(dòng)導(dǎo)致基礎(chǔ)沉降。同時(shí)，要配套建設(shè)瓦斯儲(chǔ)罐、預(yù)處理裝置和配電系統(tǒng)，確保氣源穩(wěn)定和電力輸出安全。例如，在多雨的南方礦區(qū)，需為發(fā)電機(jī)組搭建防雨棚，避免電氣元件受潮損壞。

The generator set needs to be installed in a well ventilated area away from open flames, and the ground needs to be hardened to prevent equipment vibration from causing foundation settlement. At the same time, it is necessary to construct gas storage tanks, pre-treatment devices, and power distribution systems to ensure stable gas sources and safe power output. For example, in the rainy southern mining areas, it is necessary to build rain shelters for the generator sets to prevent electrical components from being damaged by moisture.

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