D88尊龙

你好,歡迎來到濟南D88尊龙環能燃氣發電設備有限公司官方網站!

柴油機燃燒過程中產生白煙要注意哪些?

來源:http://dgxcbw.comD88尊龙   發布于:2018-05-21

白煙是指排氣煙色為白色,它與無色不同,白色是水蒸氣的白色,表示排煙中含有水分或含未燃燒的燃油成分。白煙呈液珠狀態,和藍煙相比較直徑稍大,一般大于1μm。在光的折射下呈白色,柴油機的白煙是未燃烴(含燃油和潤滑油)、水蒸氣以及不完全燃燒的中間產物(如含氧碳氫),除水蒸氣外,它們也都屬于微粒范疇。

D88尊龙White smoke refers to the exhaust smoke color is white, it is different from colorless, white is the white water vapor, indicating that smoke contains moisture or contains unburned fuel composition. White smoke showed a liquid bead state, and the diameter was slightly larger than that of blue smoke, generally larger than 1 m. White in light refraction, the white smoke of diesel engine is the intermediate product of unburned hydrocarbon (including fuel and lubricating oil), water vapor, and incomplete combustion (such as oxygen hydrocarbon). Besides the water vapor, they all belong to the particle category.

柴油機在剛起動時或冷機狀態時,排氣管冒白煙,是由于柴油機氣缸內溫度低油氣蒸發而形成,冬季尤為明顯。柴油機在嚴冷天氣運行時,柴油機溫度低,排氣管溫度也低,有水蒸氣排氣凝聚成水氣形成白色排煙,是正常現象。若當柴油機溫度正常,排氣管溫度也正常時,仍然排出白色煙霧,說明柴油機工作不正常,可判定為柴油機故障。影響其天生的主要因素為:

QQ截圖20171025151947.jpg

When the diesel engine starts at a cold start or at a cold state, the white smoke from the exhaust pipe is formed due to the low temperature of the diesel engine cylinder and the evaporation of oil and gas, especially in winter. When the diesel engine runs in severe cold weather, the temperature of the diesel engine is low and the temperature of the exhaust pipe is low. It is a normal phenomenon that the steam exhaust condenses into gas to form white exhaust. If the temperature of the diesel engine is normal and the exhaust pipe temperature is normal, the white smoke will still be discharged, which indicates that the diesel engine is not working properly and can be judged as a diesel engine fault. The main factors that affect their nature are:

D88尊龙6、柴油機剛啟動時,個別氣缸內不燃燒(特別是冬天),未燃燒的燃油混合氣隨其它工作缸的廢氣排出形成水氣煙霧。

6. When the diesel engine has just started, there is no combustion in individual cylinders (especially in winter). The unburned fuel mixture is discharged with the exhaust gas from other working cylinders to form water gas smoke.

7、活塞、氣缸套等磨損嚴重引起壓縮力不足,造成燃燒不完全。

7, wear of piston and cylinder liner seriously causes insufficient compression force, resulting in incomplete combustion.

8、燃油中有水份和空氣。水和空氣隨著燃油噴射進氣缸形成不均勻燃油混合氣,燃燒不完全,產生大量的未燃烴排出機外。

8, there is water and air in the fuel. The water and air form an uneven fuel mixture with the fuel injection into the cylinder, and the combustion is incomplete, resulting in a large number of unburned hydrocarbon ejectors.

D88尊龙9、氣缸套有裂紋或氣缸墊損壞,隨著冷卻水溫度和壓力的升高,冷卻水進進氣缸。排氣時形成輕易形成水霧或水蒸氣

9, the cylinder liner has cracks or cylinder cushion damage. With the increase of cooling water temperature and pressure, the cooling water enters the cylinder. The formation of water mist or water vapour is easily formed when exhaust

D88尊龙10、供油提前角過小。活塞上行至氣缸頂前噴進氣缸的燃油過少,形成較稀的可燃混合氣,過遲的噴油減少了預混燃料量,預混合量減少。預混合氣減少,降低了燃燒速度,燃燒結束較晚,燃燒形成大量的水氣煙霧。

10, the oil supply advance angle is too small. When the piston goes up to the top of the cylinder, there is too little fuel injected into the cylinder to form a thinner combustible mixture, and the delayed fuel injection reduces the amount of premixed fuel and reduces the pre mixing amount. The premix decreases, the burning rate decreases, and the combustion is finished later.

更多的關于焦化發電機組保養問題或者詳細的內容,請進入我們公司的網站:http://dgxcbw.com 網站中會有很多的內容僅供參考。

D88尊龙More about the maintenance of the coking unit or the details of the content, please enter our company's website: http://dgxcbw.com website will have a lot of content for reference only.


上一篇:發電機機油什么情況下更換?
下一篇:燃氣發電機組啟動困難與什么有關?