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沼氣發(fā)電機(jī)組:沼氣的動(dòng)力燃燒特性及改裝方案

返回 2023.11.24 來(lái)源:http://www.51credits.cn 0
沼氣發(fā)電機(jī)組沼氣的動(dòng)力燃燒特性及介紹沼氣所以能作為燃料是由于含有50%以上的甲烷。一般沼氣中含甲烷60~70%。每立方米沼氣的低熱值約為5000~6000千卡,具有較高熱值。由于沼氣中含有二氧化碳,使其火焰的傳播速度降低,因此在內(nèi)燃機(jī)內(nèi)有良好的抗爆性能,甲烷的辛烷值在105~115之間,而沼氣還高些,可高達(dá)135。由于抗暴性能良好,發(fā)動(dòng)機(jī)就可以選用較高的壓縮比,因此同樣工作容積的內(nèi)燃機(jī),在使用沼氣時(shí)就可以獲得不低于原機(jī)的功率。比如在農(nóng)村中大量擁有的農(nóng)用柴油機(jī),在燃用沼氣或雙燃料工作時(shí),可以獲得與原機(jī)相當(dāng)?shù)墓β省?
The power combustion characteristics and introduction of biogas in biogas generator units. The reason why biogas can be used as fuel is because it contains more than 50% methane. Generally, biogas contains 60-70% methane. The low calorific value of biogas per cubic meter is about 5000 to 6000 kcal, which has a high calorific value. Due to the presence of carbon dioxide in biogas, its flame propagation speed is reduced, resulting in good anti explosion performance in internal combustion engines. Methane has an octane number between 105 and 115, while biogas has a higher octane number, up to 135. Due to its excellent anti riot performance, the engine can choose a higher compression ratio. Therefore, an internal combustion engine with the same working volume can achieve power not lower than the original engine when using biogas. For example, a large number of agricultural diesel engines owned in rural areas can obtain equivalent power when operating on biogas or dual fuel.
這就使得在配套機(jī)具上帶來(lái)方便,以S195型馬力柴油機(jī)為例,有二種以上水泵,以及手扶拖拉機(jī)、打米、飼料粉碎、發(fā)電等作業(yè)機(jī)具,其配套轉(zhuǎn)速與功率均已定下多年,如要變動(dòng),重新為沼氣發(fā)電機(jī)組研制這么一大套新產(chǎn)品,勢(shì)必事倍功半,難以推廣。
This brings convenience in supporting equipment. Taking the S195 horsepower diesel engine as an example, it was originally equipped with two or more types of water pumps, as well as walking tractors, rice threshing, feed crushing, and power generation equipment. Its supporting speed and power have been set for many years. If there is a change, developing such a large new product for the biogas generator set will inevitably result in twice the effort and difficult to promote.
二、柴油內(nèi)燃機(jī)用沼氣的改裝方法
2、 Modification method for biogas used in diesel internal combustion engines
柴油機(jī)和點(diǎn)燃型發(fā)動(dòng)機(jī)(汽油發(fā)動(dòng)機(jī))是經(jīng)濟(jì)的內(nèi)燃機(jī)。這兩種發(fā)動(dòng)機(jī)用沼氣作為燃料之前必須進(jìn)行改裝,為燃燒室提供適合的混合氣,即在化油器前增加一個(gè)沼氣—空氣混合器。
沼氣發(fā)電機(jī)組
Diesel engines and spark ignition engines (gasoline engines) are economical internal combustion engines. Before using biogas as fuel, these two engines must be modified to provide a suitable mixture for the combustion chamber, that is, adding a biogas air mixer in front of the carburetor.
沼氣發(fā)動(dòng)機(jī)一般分為壓燃式和引燃式兩種。
Biogas engines are generally divided into two types: compression ignition and pilot ignition.
壓燃式發(fā)動(dòng)機(jī)采用柴油—沼氣雙燃料,通過(guò)壓燃少量的柴油以點(diǎn)燃沼氣進(jìn)行燃燒做功。這種發(fā)動(dòng)機(jī)的特點(diǎn)是可調(diào)節(jié)柴油/沼氣比,當(dāng)沼氣不足甚至停氣時(shí),發(fā)動(dòng)機(jī)仍能正常工作。缺點(diǎn)在于系統(tǒng)復(fù)雜,所以大型沼氣發(fā)電工程往往不采用這種發(fā)動(dòng)機(jī)。而多采用引燃式沼氣發(fā)動(dòng)機(jī)也稱全燒式沼氣發(fā)動(dòng)機(jī),其特點(diǎn)是結(jié)構(gòu)簡(jiǎn)單,操作方便,而且無(wú)需輔助燃料,適用大中型沼氣工程下工作。柴油機(jī)改裝為引燃式沼氣發(fā)動(dòng)機(jī),除了在化油器前增加一個(gè)沼氣—空氣混合器之外,還需加裝一個(gè)電點(diǎn)火系統(tǒng),同時(shí)增加火花塞。{$page}
The compression ignition engine uses a dual fuel of diesel and biogas, which ignites a small amount of diesel to ignite biogas for combustion and work. The characteristic of this type of engine is that it can adjust the diesel/biogas ratio, and can still operate normally when the biogas is insufficient or even stopped. The disadvantage is that the system is complex, so large-scale biogas power generation projects often do not use this type of engine. And most of them use pilot ignition biogas engines, also known as full combustion biogas engines, which are characterized by simple structure, convenient operation, and no need for auxiliary fuel, suitable for working in large and medium-sized biogas projects. The modification of a diesel engine to a pilot ignition biogas engine requires not only the addition of a biogas air mixer in front of the carburetor, but also the installation of an electric ignition system and the addition of spark plugs. {$page}
三、沼氣—柴油雙燃料發(fā)動(dòng)機(jī)的操作方法及注意事項(xiàng)
3、 Operating methods and precautions for biogas diesel dual fuel engines
使用方法
Usage method
1、起動(dòng):關(guān)閉沼氣閥,按柴油機(jī)的起動(dòng)方法,用柴油起動(dòng)操作方法與未改裝前一樣。
1. Starting: Close the biogas valve, follow the starting method of the diesel engine, and start with diesel using the same method as before.
2、起動(dòng)后的操作:起動(dòng)后帶上負(fù)荷,將柴油機(jī)油門放在合適的位置(一般放在中間偏低一點(diǎn)位置),待發(fā)動(dòng)機(jī)運(yùn)轉(zhuǎn)正常后,慢慢地打開沼氣閥門輸入沼氣。通入沼氣后,在調(diào)速器作用下供油量自動(dòng)減少,發(fā)動(dòng)機(jī)轉(zhuǎn)速穩(wěn)定。若沼氣輸入量過(guò)多,發(fā)動(dòng)機(jī)會(huì)出現(xiàn)瞬間供油中斷現(xiàn)象,產(chǎn)生斷續(xù)的工作聲。遇到這種情況,應(yīng)隨時(shí)即將沼氣閥略微關(guān)小,直到正常運(yùn)轉(zhuǎn)為止。
2. Operation after starting: After starting, load the diesel engine and place the throttle in a suitable position (usually slightly lower in the middle). After the engine runs normally, slowly open the biogas valve to input biogas. After introducing biogas, the fuel supply automatically decreases under the action of the governor, and the engine speed stabilizes. If there is too much biogas input, the engine will experience an instantaneous fuel supply interruption, producing intermittent working sounds. In this situation, the biogas valve should be slightly turned down at any time until it operates normally.
在運(yùn)轉(zhuǎn)過(guò)程中,調(diào)整轉(zhuǎn)速的方法與改裝前用柴油工作時(shí)一樣,通過(guò)改變油門手柄位置來(lái)進(jìn)行。隨著雙燃料發(fā)動(dòng)機(jī)轉(zhuǎn)速或負(fù)荷大小的改變,也要相應(yīng)的開大或關(guān)小沼氣閥門,以保證雙燃料發(fā)動(dòng)機(jī)正常運(yùn)轉(zhuǎn)和較好的節(jié)油效果。當(dāng)沼氣—柴油機(jī)冷卻水溫較低已及小負(fù)荷運(yùn)行時(shí),節(jié)油效果差。
In the process of operation, the method of adjusting the speed is the same as that of working with diesel before modification, by changing the position of the throttle handle. As the speed or load of the dual fuel engine changes, the biogas valve should also be opened or closed accordingly to ensure the normal operation and good fuel saving effect of the dual fuel engine. When the cooling water temperature of biogas diesel engines is low and they are operating at low loads, the fuel saving effect is poor.
有了管道警示帶上面的小總結(jié),希望對(duì)廣大客戶有所幫助,如果有什么不理解的或者尋求幫助的請(qǐng)點(diǎn)擊我們的網(wǎng)站:http://www.binzhouhengtong.com或者來(lái)電咨詢,我們會(huì)盡全力為您解決
With the small summary on the pipeline warning tape, I hope it can be helpful to our customers. If you have any questions or need help, please click on our website: http://www.binzhouhengtong.com Or call for consultation, and we will do our best to solve it for you
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沼氣發(fā)電機(jī)組:沼氣的動(dòng)力燃燒特性及改裝方案

沼氣發(fā)電機(jī)組沼氣的動(dòng)力燃燒特性及介紹沼氣所以能作為燃料是由于含有50%以上的甲烷。一般沼氣中含甲烷60~70%。每立方米沼氣的低熱值約為5000~6000千卡,具有較高熱值。由于沼氣中含有二氧化碳,使其火焰的傳播速度降低,因此在內(nèi)燃機(jī)內(nèi)有良好的抗爆性能,甲烷的辛烷值在105~115之間,而沼氣還高些,可高達(dá)135。由于抗暴性能良好,發(fā)動(dòng)機(jī)就可以選用較高的壓縮比,因此同樣工作容積的內(nèi)燃機(jī),在使用沼氣時(shí)就可以獲得不低于原機(jī)的功率。比如在農(nóng)村中大量擁有的農(nóng)用柴油機(jī),在燃用沼氣或雙燃料工作時(shí),可以獲得與原機(jī)相當(dāng)?shù)墓β省?
The power combustion characteristics and introduction of biogas in biogas generator units. The reason why biogas can be used as fuel is because it contains more than 50% methane. Generally, biogas contains 60-70% methane. The low calorific value of biogas per cubic meter is about 5000 to 6000 kcal, which has a high calorific value. Due to the presence of carbon dioxide in biogas, its flame propagation speed is reduced, resulting in good anti explosion performance in internal combustion engines. Methane has an octane number between 105 and 115, while biogas has a higher octane number, up to 135. Due to its excellent anti riot performance, the engine can choose a higher compression ratio. Therefore, an internal combustion engine with the same working volume can achieve power not lower than the original engine when using biogas. For example, a large number of agricultural diesel engines owned in rural areas can obtain equivalent power when operating on biogas or dual fuel.
這就使得在配套機(jī)具上帶來(lái)方便,以S195型馬力柴油機(jī)為例,有二種以上水泵,以及手扶拖拉機(jī)、打米、飼料粉碎、發(fā)電等作業(yè)機(jī)具,其配套轉(zhuǎn)速與功率均已定下多年,如要變動(dòng),重新為沼氣發(fā)電機(jī)組研制這么一大套新產(chǎn)品,勢(shì)必事倍功半,難以推廣。
This brings convenience in supporting equipment. Taking the S195 horsepower diesel engine as an example, it was originally equipped with two or more types of water pumps, as well as walking tractors, rice threshing, feed crushing, and power generation equipment. Its supporting speed and power have been set for many years. If there is a change, developing such a large new product for the biogas generator set will inevitably result in twice the effort and difficult to promote.
二、柴油內(nèi)燃機(jī)用沼氣的改裝方法
2、 Modification method for biogas used in diesel internal combustion engines
柴油機(jī)和點(diǎn)燃型發(fā)動(dòng)機(jī)(汽油發(fā)動(dòng)機(jī))是經(jīng)濟(jì)的內(nèi)燃機(jī)。這兩種發(fā)動(dòng)機(jī)用沼氣作為燃料之前必須進(jìn)行改裝,為燃燒室提供適合的混合氣,即在化油器前增加一個(gè)沼氣—空氣混合器。
沼氣發(fā)電機(jī)組
Diesel engines and spark ignition engines (gasoline engines) are economical internal combustion engines. Before using biogas as fuel, these two engines must be modified to provide a suitable mixture for the combustion chamber, that is, adding a biogas air mixer in front of the carburetor.
沼氣發(fā)動(dòng)機(jī)一般分為壓燃式和引燃式兩種。
Biogas engines are generally divided into two types: compression ignition and pilot ignition.
壓燃式發(fā)動(dòng)機(jī)采用柴油—沼氣雙燃料,通過(guò)壓燃少量的柴油以點(diǎn)燃沼氣進(jìn)行燃燒做功。這種發(fā)動(dòng)機(jī)的特點(diǎn)是可調(diào)節(jié)柴油/沼氣比,當(dāng)沼氣不足甚至停氣時(shí),發(fā)動(dòng)機(jī)仍能正常工作。缺點(diǎn)在于系統(tǒng)復(fù)雜,所以大型沼氣發(fā)電工程往往不采用這種發(fā)動(dòng)機(jī)。而多采用引燃式沼氣發(fā)動(dòng)機(jī)也稱全燒式沼氣發(fā)動(dòng)機(jī),其特點(diǎn)是結(jié)構(gòu)簡(jiǎn)單,操作方便,而且無(wú)需輔助燃料,適用大中型沼氣工程下工作。柴油機(jī)改裝為引燃式沼氣發(fā)動(dòng)機(jī),除了在化油器前增加一個(gè)沼氣—空氣混合器之外,還需加裝一個(gè)電點(diǎn)火系統(tǒng),同時(shí)增加火花塞。{$page}
The compression ignition engine uses a dual fuel of diesel and biogas, which ignites a small amount of diesel to ignite biogas for combustion and work. The characteristic of this type of engine is that it can adjust the diesel/biogas ratio, and can still operate normally when the biogas is insufficient or even stopped. The disadvantage is that the system is complex, so large-scale biogas power generation projects often do not use this type of engine. And most of them use pilot ignition biogas engines, also known as full combustion biogas engines, which are characterized by simple structure, convenient operation, and no need for auxiliary fuel, suitable for working in large and medium-sized biogas projects. The modification of a diesel engine to a pilot ignition biogas engine requires not only the addition of a biogas air mixer in front of the carburetor, but also the installation of an electric ignition system and the addition of spark plugs. {$page}
三、沼氣—柴油雙燃料發(fā)動(dòng)機(jī)的操作方法及注意事項(xiàng)
3、 Operating methods and precautions for biogas diesel dual fuel engines
使用方法
Usage method
1、起動(dòng):關(guān)閉沼氣閥,按柴油機(jī)的起動(dòng)方法,用柴油起動(dòng)操作方法與未改裝前一樣。
1. Starting: Close the biogas valve, follow the starting method of the diesel engine, and start with diesel using the same method as before.
2、起動(dòng)后的操作:起動(dòng)后帶上負(fù)荷,將柴油機(jī)油門放在合適的位置(一般放在中間偏低一點(diǎn)位置),待發(fā)動(dòng)機(jī)運(yùn)轉(zhuǎn)正常后,慢慢地打開沼氣閥門輸入沼氣。通入沼氣后,在調(diào)速器作用下供油量自動(dòng)減少,發(fā)動(dòng)機(jī)轉(zhuǎn)速穩(wěn)定。若沼氣輸入量過(guò)多,發(fā)動(dòng)機(jī)會(huì)出現(xiàn)瞬間供油中斷現(xiàn)象,產(chǎn)生斷續(xù)的工作聲。遇到這種情況,應(yīng)隨時(shí)即將沼氣閥略微關(guān)小,直到正常運(yùn)轉(zhuǎn)為止。
2. Operation after starting: After starting, load the diesel engine and place the throttle in a suitable position (usually slightly lower in the middle). After the engine runs normally, slowly open the biogas valve to input biogas. After introducing biogas, the fuel supply automatically decreases under the action of the governor, and the engine speed stabilizes. If there is too much biogas input, the engine will experience an instantaneous fuel supply interruption, producing intermittent working sounds. In this situation, the biogas valve should be slightly turned down at any time until it operates normally.
在運(yùn)轉(zhuǎn)過(guò)程中,調(diào)整轉(zhuǎn)速的方法與改裝前用柴油工作時(shí)一樣,通過(guò)改變油門手柄位置來(lái)進(jìn)行。隨著雙燃料發(fā)動(dòng)機(jī)轉(zhuǎn)速或負(fù)荷大小的改變,也要相應(yīng)的開大或關(guān)小沼氣閥門,以保證雙燃料發(fā)動(dòng)機(jī)正常運(yùn)轉(zhuǎn)和較好的節(jié)油效果。當(dāng)沼氣—柴油機(jī)冷卻水溫較低已及小負(fù)荷運(yùn)行時(shí),節(jié)油效果差。
In the process of operation, the method of adjusting the speed is the same as that of working with diesel before modification, by changing the position of the throttle handle. As the speed or load of the dual fuel engine changes, the biogas valve should also be opened or closed accordingly to ensure the normal operation and good fuel saving effect of the dual fuel engine. When the cooling water temperature of biogas diesel engines is low and they are operating at low loads, the fuel saving effect is poor.
有了管道警示帶上面的小總結(jié),希望對(duì)廣大客戶有所幫助,如果有什么不理解的或者尋求幫助的請(qǐng)點(diǎn)擊我們的網(wǎng)站:http://www.binzhouhengtong.com或者來(lái)電咨詢,我們會(huì)盡全力為您解決
With the small summary on the pipeline warning tape, I hope it can be helpful to our customers. If you have any questions or need help, please click on our website: http://www.binzhouhengtong.com Or call for consultation, and we will do our best to solve it for you
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