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                常見問題解答

                燃氣發電機組與燃氣輪機比較操作方式!

                返回 2021.09.27 來源:http://www.calivea.com
                燃氣發電機組的發電效率通常在30%-40%之間,比較常見的機型一般可以達到35%。燃氣內燃機突出的優點正是發電效率比較高,其次是設備集成度高,安裝快捷,對于氣體中的粉塵要求不高,基本不需要水,設備的單位千瓦造價也比較低。
                The power generation efficiency of gas generator set is usually between 30% - 40%, and the common model can generally reach 35%. The outstanding advantages of gas-fired internal combustion engine are relatively high power generation efficiency, followed by high equipment integration, fast installation, low requirements for dust in the gas, basically no water, and low cost per kilowatt of equipment.
                但是內燃機也有一些不足的地方,首先,內燃機燃燒低熱值燃料時,機組出力明顯下降,一臺燃燒低熱值8000大卡/立方米天然氣燃料的500千瓦級燃氣內燃發電機組,在使用低熱值4000大卡/立方米的焦化煤氣時,出力可能下降到350~400kW左右。
                However, the internal combustion engine also has some deficiencies. First, when the internal combustion engine burns low calorific value fuel, the output of the unit decreases significantly. When a 500 kW gas-fired internal combustion generator unit burning 8000 kcal / m3 natural gas fuel with low calorific value uses 4000 kcal / m3 coking gas, the output may drop to about 350 ~ 400KW.
                此外,內燃機需要頻繁更換機油和火花塞,消耗材料比較大,也影響到設備的可用性和可靠性兩個主要設備利用指標,對設備利用率影響比較大,有時不得不采取增加發電機組臺數的辦法,來消除利用率低的影響。內燃機設備對焦化煤氣中的水分子含量和硫化氫比較敏感,可能導致硫化氫和水形成硫酸腐蝕問題,需要采取一些必要措施加以克服。
                In addition, the internal combustion engine needs to change the engine oil and spark plug frequently, which consumes a large amount of materials, and also affects the two main equipment utilization indexes of equipment availability and reliability, which has a great impact on the equipment utilization rate. Sometimes, we have to increase the number of generator sets to eliminate the impact of low utilization rate. Internal combustion engine equipment is sensitive to water molecular content and hydrogen sulfide in coking gas, which may lead to sulfuric acid corrosion of hydrogen sulfide and water. Some necessary measures need to be taken to overcome it.
                燃氣輪機比較適用于高含氫低熱值和氣體含雜質較多的劣質燃料,一些燃氣輪機甚至使用原油和高硫渣油燃料。
                Gas turbines are more suitable for inferior fuels with high hydrogen content, low calorific value and high gas impurities. Some gas turbines even use crude oil and high sulfur residue fuel.
                燃氣輪機自身的發電效率不算很高,一般在30%~35%之間,但是產生的廢熱煙氣溫度高達450~550℃,可以通過余熱鍋爐再次回收熱能轉換蒸汽,驅動蒸汽輪機再發一次電,形成燃氣輪機--蒸汽輪機聯合循環發電,發電效率可以達到45%~50%,一些大型機組甚至可以超過55%。
                The power generation efficiency of gas turbine itself is not very high, generally between 30% ~ 35%, but the temperature of waste heat flue gas is as high as 450 ~ 550 ℃, which can recover heat energy again through waste heat boiler, convert steam, drive steam turbine to generate electricity again, and form gas turbine steam turbine combined cycle power generation, and the power generation efficiency can reach 45% ~ 50%, Some large units can even exceed 55%.
                采用燃氣輪機的優勢相對比較多,首先是設備的可用性和可靠性都比較高,綜合利用率一般可以保持在90%;其次,對于燃料的適應性比較強,含硫、含塵高一點問題都不大;再有就是發電出力一般不會減少,甚至因為燃料進氣量增加而有所增加;此外,燃氣輪機功率密度大體積小,比較適合再移動,便于轉移運行現場,這對于存在一些不確定性的焦化廠項目的焦化煤氣利用非常有利。
                There are many advantages of using gas turbine. First, the availability and reliability of the equipment are relatively high, and the comprehensive utilization rate can generally be maintained at 90%; Secondly, it has strong adaptability to fuel, and there is no problem with high sulfur and dust content; In addition, the power generation output generally does not decrease, even increases due to the increase of fuel intake; In addition, the gas turbine has large power density and small volume, which is more suitable for re movement and easy to transfer the operation site, which is very beneficial to the utilization of coking gas in coking plant projects with some uncertainties.
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                燃氣發電機組與燃氣輪機比較操作方式!

                燃氣發電機組的發電效率通常在30%-40%之間,比較常見的機型一般可以達到35%。燃氣內燃機突出的優點正是發電效率比較高,其次是設備集成度高,安裝快捷,對于氣體中的粉塵要求不高,基本不需要水,設備的單位千瓦造價也比較低。
                The power generation efficiency of gas generator set is usually between 30% - 40%, and the common model can generally reach 35%. The outstanding advantages of gas-fired internal combustion engine are relatively high power generation efficiency, followed by high equipment integration, fast installation, low requirements for dust in the gas, basically no water, and low cost per kilowatt of equipment.
                但是內燃機也有一些不足的地方,首先,內燃機燃燒低熱值燃料時,機組出力明顯下降,一臺燃燒低熱值8000大卡/立方米天然氣燃料的500千瓦級燃氣內燃發電機組,在使用低熱值4000大卡/立方米的焦化煤氣時,出力可能下降到350~400kW左右。
                However, the internal combustion engine also has some deficiencies. First, when the internal combustion engine burns low calorific value fuel, the output of the unit decreases significantly. When a 500 kW gas-fired internal combustion generator unit burning 8000 kcal / m3 natural gas fuel with low calorific value uses 4000 kcal / m3 coking gas, the output may drop to about 350 ~ 400KW.
                此外,內燃機需要頻繁更換機油和火花塞,消耗材料比較大,也影響到設備的可用性和可靠性兩個主要設備利用指標,對設備利用率影響比較大,有時不得不采取增加發電機組臺數的辦法,來消除利用率低的影響。內燃機設備對焦化煤氣中的水分子含量和硫化氫比較敏感,可能導致硫化氫和水形成硫酸腐蝕問題,需要采取一些必要措施加以克服。
                In addition, the internal combustion engine needs to change the engine oil and spark plug frequently, which consumes a large amount of materials, and also affects the two main equipment utilization indexes of equipment availability and reliability, which has a great impact on the equipment utilization rate. Sometimes, we have to increase the number of generator sets to eliminate the impact of low utilization rate. Internal combustion engine equipment is sensitive to water molecular content and hydrogen sulfide in coking gas, which may lead to sulfuric acid corrosion of hydrogen sulfide and water. Some necessary measures need to be taken to overcome it.
                燃氣輪機比較適用于高含氫低熱值和氣體含雜質較多的劣質燃料,一些燃氣輪機甚至使用原油和高硫渣油燃料。
                Gas turbines are more suitable for inferior fuels with high hydrogen content, low calorific value and high gas impurities. Some gas turbines even use crude oil and high sulfur residue fuel.
                燃氣輪機自身的發電效率不算很高,一般在30%~35%之間,但是產生的廢熱煙氣溫度高達450~550℃,可以通過余熱鍋爐再次回收熱能轉換蒸汽,驅動蒸汽輪機再發一次電,形成燃氣輪機--蒸汽輪機聯合循環發電,發電效率可以達到45%~50%,一些大型機組甚至可以超過55%。
                The power generation efficiency of gas turbine itself is not very high, generally between 30% ~ 35%, but the temperature of waste heat flue gas is as high as 450 ~ 550 ℃, which can recover heat energy again through waste heat boiler, convert steam, drive steam turbine to generate electricity again, and form gas turbine steam turbine combined cycle power generation, and the power generation efficiency can reach 45% ~ 50%, Some large units can even exceed 55%.
                采用燃氣輪機的優勢相對比較多,首先是設備的可用性和可靠性都比較高,綜合利用率一般可以保持在90%;其次,對于燃料的適應性比較強,含硫、含塵高一點問題都不大;再有就是發電出力一般不會減少,甚至因為燃料進氣量增加而有所增加;此外,燃氣輪機功率密度大體積小,比較適合再移動,便于轉移運行現場,這對于存在一些不確定性的焦化廠項目的焦化煤氣利用非常有利。
                There are many advantages of using gas turbine. First, the availability and reliability of the equipment are relatively high, and the comprehensive utilization rate can generally be maintained at 90%; Secondly, it has strong adaptability to fuel, and there is no problem with high sulfur and dust content; In addition, the power generation output generally does not decrease, even increases due to the increase of fuel intake; In addition, the gas turbine has large power density and small volume, which is more suitable for re movement and easy to transfer the operation site, which is very beneficial to the utilization of coking gas in coking plant projects with some uncertainties.
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