During the operation of the engine of the automatic concrete mixer, the exhaust pipe sometimes discharges water, especially in winter, which makes people mistakenly believe that the cooling system of the mixer is poor and there is a leakage problem. In fact, this is a very normal physical phenomenon and a manifestation of full combustion of gasoline.

汽油燃燒后主要產生二氧化碳、水和少量一氧化碳,每1千克汽油與空氣混合燃燒后產生約會1.42千克的水,主要以汽態的形式排入大氣。由于主消音器位于車的后部,溫度相對較低,里面為多腔室結構,容易形成積水,攪拌車發動機高速運行時里面的積水在氣流的作用下會被排出,即常見的噴水現象。經常在擁堵路面低速行駛的車輛,特別在冬季消音器積水現象會略嚴重。

Gasoline combustion mainly produces carbon dioxide, water and a small amount of carbon monoxide. Every 1kg of gasoline is mixed with air to produce about 1.42kg of water, which is mainly discharged into the atmosphere in the form of vapor. As the main muffler is located at the rear of the vehicle, the temperature is relatively low, and it is a multi chamber structure, which is easy to form ponding. When the mixer engine runs at high speed, the ponding in the mixer will be discharged under the action of air flow, that is, a common water spraying phenomenon. For vehicles that often drive at low speed on congested roads, especially in winter, the phenomenon of ponding on the muffler will be slightly serious.

如燃油內硫的含量超標,攪拌車發動機燃燒后會產生硫的氧化物,與水一起積聚在里面易導致消音器腐蝕穿孔。將車停在上坡道上,原地轟一轟油門有助于積水的排出,可以延長消音器的使用壽命。

If the sulfur content in the fuel exceeds the standard, sulfur oxides will be produced after the combustion of the mixer engine, which will accumulate in it together with water, which is easy to cause corrosion and perforation of the muffler. Park the car on the ramp and blow the accelerator in place, which helps to drain the accumulated water and prolong the service life of the muffler.

自動混凝土攪拌機建議,如果廣大司機不放心,可到就近的攪拌車服務中心進行檢查和維護,以保證攪拌車車況維持在良好水平。

Experts of automatic concrete mixer suggest that if the majority of drivers are not at ease, they can go to the nearest mixer Service Center for inspection and maintenance to ensure that the condition of the mixer is maintained at a good level.