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D88尊龙燃氣發電機組與燃氣輪機的操作方式對比

來源:http://dgxcbw.com   發布于:2019-04-24

燃氣發電機組的發電效率通常在30%-40%之間,比較常見的機型普通可以抵達35%。燃氣內燃機最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,關于氣體中的粉塵懇求不高,基本不需求水,設備的單位千瓦造價也比較低。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。

D88尊龙Generation efficiency of gas-fired generating units usually ranges from 30% to 40%, and the more common types can reach 35%. The most prominent advantages of gas internal combustion engine are high power generation efficiency, followed by high integration of equipment, fast installation, low dust appeal in gas, little water demand, 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.

D88尊龙此外,內燃機需求頻繁改換機油和火花塞,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應用指標,對設備應用率影響比較大,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較敏感,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抑制。

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

D88尊龙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,一些燃氣輪機以致運用原油和高硫渣油燃料。燃氣輪機自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℃,可以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--蒸汽輪機分離循環發電,發電效率可以抵達45%~50%,一些大型機組以致可以超越55%。

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Gas turbines are more suitable for inferior fuels with high hydrogen content, low calorific value and more impurities in gases. Some gas turbines 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 is as high as 450-550 C. It can be recycled by waste heat boiler to convert steam, drive steam turbine to generate electricity again, and form gas turbine-steam turbine separated cycle power generation. The generation efficiency can reach 45%-50%. Some large-scale units can 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,綜合應用率普通可以堅持在90%;其次,關于燃料的順應性比較強,含硫、含塵高一點問題都不大;再有就是發電出力普通不會減少,以致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,比較適宜再移動,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非常有利。

The advantages of using gas turbines are relatively more, firstly, the availability and reliability of the equipment are relatively high, and the comprehensive application rate can generally be maintained at 90%; secondly, the fuel compliance is relatively 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 the fuel intake increases; moreover, the power density of gas turbines is high. The coking gas application of some uncertain coking plant projects is very favorable.

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較大,越是發電效率高的機組燃料進氣壓力越高,由于焦化煤氣本身沒有什么壓力,這就需求運用燃氣緊縮機,緊縮燃氣需求消耗大量的能量,影響到設備的理論輸出功率,一些項目以致需求消耗燃氣輪機15%~20%的功率,關于分離循環項目抵達影響可能是10%~15%的輸出功率;采用分離循環系統存在與蒸汽輪機相同的水資源條件懇求,系統比較復雜,投資也比較大,同時搬遷也比較困難。

However, there are advantages and disadvantages in the affairs of the world. There are no perfect things. The higher the intake pressure of gas turbine is, the higher the intake pressure of fuel of the unit with high power generation efficiency is. Because there is no pressure in the coking gas itself, it is necessary to use the gas compressor to tighten the gas demand and consume a lot of energy, which affects the theoretical output power of the equipment. Some projects result in the consumption of 15%~20% of the power of the gas turbine. The project of separation cycle arrives at the film. The noise may be 10%~15% of the output power; the separate circulation system has the same water resource conditions as the steam turbine, which makes the system more complex, the investment is larger, and the relocation is more difficult.

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自己熟習操作流程而疏忽了操作前的檢查。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。由于天氣逐漸變暖,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較大,容易呈現老化現象,一切呈現老化的零部件都要中止改換。細致的檢查項目有以下幾點:

There are some precautions for 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 relatively large winter monsoon, parts and components are prone to aging, and all aging parts and components should be discontinued and replaced. Detailed inspection items have the following points:

1.用心檢查自然氣發電機組,保證沒有“三漏”問題,即:漏油、漏水、漏氣等現象。保證導線銜接處的堅固。

D88尊龙1. Carefully inspect the natural gas generating units to ensure that there is no "three leakage" problem, that is, oil leakage, water leakage, air leakage and other phenomena. Guarantee the solidity of the wire connection.

2.保證自然氣發電機組的潤滑油油位,假設缺乏,應運用同一品牌,同一質量的潤滑油補足。

D88尊龙2. To ensure the lubricating oil level of natural gas generating units, assuming that there is a lack of lubricating oil, the same brand and the same quality of lubricating oil should be used to make up for it.

3.自然氣發電機組的電壓應在24—27V之間。

D88尊龙3. The voltage of natural gas generator set should be between 24-27V.

4.檢查冷卻液的液位,要確保冷卻液的充足。

4. Check the level of coolant to ensure adequate coolant.

D88尊龙5.急停開關應在翻開的狀態,以便于發作事故的時分自動彈出。保證自然氣發電機組的缺點維護。

D88尊龙5. The emergency stop switch should be turned on in order to automatically pop up at the time of the accident. Guarantee the defect maintenance of natural gas generator set.

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This article is written by biogas generating units. For more products and more details, please pay attention to our official website http://dgxcbw.com.


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