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D88尊龙燃氣發電機組與燃氣輪機的操作比較

來源:http://dgxcbw.com   發布于:2019-05-15

D88尊龙燃氣發電機組的發電效率通常在30%-40%之間,比擬常見的機型普通能夠到達35%。燃氣內燃機最突出的優點正是發電效率比擬高,其次是設備集成度高,裝置快捷,關于氣體中的粉塵請求不高,根本不需求水,設備的單位千瓦造價也比擬低。但是內燃機也有一些缺乏的中央,首先,內燃機熄滅低熱值燃料時,機組出力明顯降落,一臺熄滅低熱值8000大卡/立方米自然氣燃料的500千瓦級燃氣內燃發電機組,在運用低熱值4000大卡/立方米的焦化煤氣時,出力可能降落到350~400kW左右。

Generation efficiency of gas-fired generating units usually ranges from 30% to 40%, up to 35% compared with common models. The most prominent advantage of gas internal combustion engine is high power generation efficiency, followed by high integration of equipment, fast installation, low dust requirement in gas, no water requirement at all, and low unit kilowatt cost of equipment. But the internal combustion engine also has some deficiencies. Firstly, when the internal combustion engine extinguishes the low calorific value fuel, the output of the unit obviously drops. When a 500 kW gas-fired internal combustion generator unit extinguishes the low calorific value 8000 kcal/cubic meter natural gas fuel, the output may drop to about 350-400 kW when using the low calorific value 4000 kcal/cubic meter coking gas.

此外,內燃機需求頻繁改換機油和火花塞,耗費資料比擬大,也影響到設備的可用性和牢靠性兩個主要設備應用指標,對設備應用率影響比擬大,有時不得不采取增加發電機組臺數的方法,來消弭應用率低的影響。內燃機設備對焦化煤氣中的水分子含量和硫化氫比擬敏感,可能招致硫化氫和水構成硫酸腐蝕問題,需求采取一些必要措施加以克制。

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In addition, internal combustion engine needs to change oil and spark plug frequently, which consumes comparatively large amount of data. It also affects the usability and reliability of the two main equipment application indicators. It has a comparatively large impact on the equipment application rate. Sometimes, it has to adopt the method of increasing the number of generators to eliminate the impact of low application rate. Internal combustion engine equipment is sensitive to water molecule content and hydrogen sulfide ratio in coking gas, which may cause hydrogen sulfide and water to form sulfuric acid corrosion problem. Some necessary measures should be taken to restrain it.

燃氣輪機比擬適用于高含氫低熱值和氣體含雜質較多的劣質燃料,一些燃氣輪機以至運用原油和高硫渣油燃料。燃氣輪機本身的發電效率不算很高,普通在30%~35%之間,但是產生的廢熱煙氣溫度高達450~550℃,能夠經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,構成燃氣輪機--蒸汽輪機結合循環發電,發電效率能夠到達45%~50%,一些大型機組以至能夠超越55%。

Gas turbines are comparable to inferior fuels with high hydrogen content, low calorific value and more impurities in gases. Some gas turbines even use crude oil and high sulfur residue fuels. The generation efficiency of gas turbine itself is not very high, usually between 30% and 35%, but the temperature of waste heat flue gas generated is as high as 450-550 C. It can recover heat energy to convert steam again through waste heat boiler, drive steam turbine to generate electricity again, and form gas turbine-steam turbine combined cycle power generation. The generation efficiency can reach 45%-50%, and some large-scale units can exceed 55%. 。

D88尊龙采用燃氣輪機的優勢相比照較多,首先是設備的可用性和牢靠性都比擬高,綜合應用率普通能夠堅持在90%;其次,關于燃料的順應性比擬強,含硫、含塵高一點問題都不大;再有就是發電出力普通不會減少,以至由于燃料進氣量增加而有所增加;此外,燃氣輪機功率密度大致積小,比擬合適再挪動,便于轉移運轉現場,這關于存在一些不肯定性的焦化廠項目的焦化煤氣應用十分有利。

D88尊龙The advantages of using gas turbines are comparable, first, the availability and reliability of the equipment are comparatively high, and the comprehensive application rate can generally be maintained at 90%; secondly, the fuel compliance is comparatively strong, and the problems of high sulfur and dust content are not serious; thirdly, the power output of power generation is generally not reduced, so that it will increase due to the increase of fuel intake; moreover, the power density of gas turbines is high. The coking gas application of some uncertain coking plant projects is very advantageous.

D88尊龙但是,世上的事務有一利,必有一弊,沒有十全十美的事情。燃氣輪機進氣壓力比擬大,越是發電效率高的機組燃料進氣壓力越高,由于焦化煤氣自身沒有什么壓力,這就需求運用燃氣緊縮機,緊縮燃氣需求耗費大量的能量,影響到設備的實踐輸出功率,一些項目以至需求耗費燃氣輪機15%~20%的功率,關于結合循環項目到達影響可能是10%~15%的輸出功率;采用結合循環系統存在與蒸汽輪機相同的水資源條件請求,系統比擬復雜,投資也比擬大,同時搬遷也比擬艱難。

However, there are advantages and disadvantages in the affairs of the world. There are no perfect things. The intake pressure of gas turbine is larger than that of gas turbine, and the higher the intake pressure of fuel of unit with high power generation efficiency. Because there is no pressure of coking gas itself, it is necessary to use gas compressor to reduce the demand of gas, which consumes a lot of energy and affects the practical output power of equipment. Some projects even consume 15%~20% of the power of gas turbine. About the arrival of combined cycle project The noise may be 10%~15% of the output power; the system is complex, the investment is large and the relocation is difficult when the combined cycle system has the same water resource requirements as the steam turbine.

D88尊龙操作自然氣發電機組有一些留意事項。我們在運用的時分常常會由于本人熟習操作流程而忽略了操作前的檢查。其真實操作自然氣發電機組之前做好檢查是很有必要的。特別是在初春的時節。由于天氣逐步變暖,戶外環境的變化使自然氣發電機組需求有一個順應的過程。再者,零部件由于在冬季風比擬大,容易呈現老化現象,一切呈現老化的零部件都要停止改換。

There are some matters needing attention in operating natural gas generating units. When we use it, we often neglect the pre-operation inspection because we are familiar with the operation process. It is necessary to check the natural gas generating units before they are actually operated. Especially in early spring. Due to the gradual warming of the weather, the change of outdoor environment makes the demand of natural gas generating units have a process of adaptation. Moreover, due to the large proportion of components in the winter monsoon, it is easy to present aging phenomenon, and all aging components should stop changing.


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