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柴油發(fā)電機氣缸蓋爆缸的原因 Reasons for Cylinder Head Explosion of Diesel Generator

作者:admin 瀏覽量:100 來源:本站 時間:2024-10-16 12:56:10

信息摘要:

冬天氣溫低,柴油發(fā)電機氣缸蓋易爆缸。主要緣由以下幾點:1、起動后才加冷卻水。柴油機起動后,柴油發(fā)電機內溫度當即升高,假若這時參加冷卻水,氣缸體與汽缸蓋急劇冷卻,就會因冷縮而裂縫。2、停機后,沒有放冷卻水。機內水凍結成冰,體積增大,發(fā)作汽缸體和汽缸蓋脹裂。3、發(fā)電機組作業(yè)時,冷卻水短少或水箱開鍋機溫過高,

冬天氣溫低,柴油發(fā)電機氣缸蓋易爆缸。主要緣由以下幾點:

1、起動后才加冷卻水。柴油機起動后,柴油發(fā)電機內溫度當即升高,假若這時參加冷卻水,氣缸體與汽缸蓋急劇冷卻,就會因冷縮而裂縫。

2、停機后,沒有放冷卻水。機內水凍結成冰,體積增大,發(fā)作汽缸體和汽缸蓋脹裂。

3發(fā)電機組作業(yè)時,冷卻水短少或水箱開鍋機溫過高,俄然參加冷卻水。汽缸體和汽缸蓋過冷縮短也會導致開裂。

4、柴油發(fā)電機組長時間作業(yè),機內溫度高,停機后當即放掉高溫水。會導致高溫零件驟遇冷空氣而開裂。

5、運用減壓機停機,使高溫的氣缸蓋俄然遇到酷寒空氣而導致開裂。

汽缸開裂的原因:

1、起動柴油機前,應先給水箱參加溫熱水,嚴冬天節(jié)要灌注熱水2~3次,待放水閥中流出的水約30~50℃時起動為佳。

2、柴油機作業(yè)時辰較長時,停機后應等候半個小時左右,機溫下降到40~50℃時再放冷卻水。放完水后最好用細鐵絲捅通放水閥開關,避免沉淀物阻塞放水閥。

3康明斯柴油發(fā)電機作業(yè)過熱嚴厲缺水時,應讓柴油機低速空轉10~15分鐘,然后再逐步參加冷卻水。

In winter, the temperature is low and the cylinder head of diesel generators is prone to bursting. The main reasons are as follows:

1. Add cooling water only after starting. After the diesel engine starts, the temperature inside the diesel generator immediately increases. If cooling water is added at this time, the cylinder block and cylinder head will cool rapidly, causing cracks due to cold shrinkage.

2. After shutdown, no cooling water was discharged. The water inside the engine freezes into ice, causing an increase in volume and resulting in the expansion and cracking of the cylinder block and cylinder head.

3. During the operation of the generator set, if there is a shortage of cooling water or if the temperature of the boiler in the water tank is too high, the cooling water will be added. Excessive cold shrinkage and shortening of the cylinder block and cylinder head can also lead to cracking.

4. The diesel generator was working for a long time and the temperature inside was high. After shutting down, the high-temperature water was immediately drained. It can cause high-temperature parts to suddenly crack when exposed to cold air.

5. Using a pressure reducer to shut down the engine caused the high-temperature cylinder head to suddenly crack due to exposure to cold air.

Reasons for cylinder cracking:

1. Before starting the diesel engine, the water tank should be filled with warm water. In severe winter weather, hot water should be poured 2-3 times. It is best to start when the water flowing out of the drain valve is about 30-50 ℃.

2. When the diesel engine operates for a long time, wait for about half an hour after shutdown, and then release the cooling water when the engine temperature drops to 40-50 ℃. After draining, it is best to poke the drain valve switch with a thin wire to avoid sediment blocking the drain valve.

3. When the operation of Cummins diesel generators is overheated and severely lacking in water, the diesel engine should be allowed to idle at low speed for 10-15 minutes before gradually adding cooling water


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