When the concrete mixer truck is loaded with concrete from the mixing plant to the construction site in the urban area, there are many vehicles and pedestrians in the urban area, and the road conditions are also complex. Slow down and brake at any time to ensure driving safety. Braking technology is one of the realms of good driving concrete mixer.

在混凝土攪拌車行駛過(guò)程中，或者是在停車場(chǎng)。經(jīng)常會(huì)在排氣管發(fā)現(xiàn)有滴水現(xiàn)象。甚會(huì)有一地水跡。

When the concrete mixer is driving, or in the parking lot. Dripping water is often found in the exhaust pipe. There will even be a trace of water.

維修人員表示，混凝土攪拌車排氣管滴水是好現(xiàn)象。證明燃料在發(fā)動(dòng)機(jī)得到了充分的燃燒，混凝土攪拌車的排氣管從而會(huì)向外滴水，其實(shí)這是一個(gè)很正常的現(xiàn)象。

Professional maintenance personnel said that dripping water from the exhaust pipe of concrete mixer truck is a good phenomenon. It is proved that the fuel is fully burned in the engine and the exhaust pipe of the concrete mixer will drip outward. In fact, this is a very normal phenomenon.

排氣管之所以滴水就是因?yàn)榄h(huán)境溫度比較低，汽油完全燃燒后生成的是水和二氧化碳，水在高溫下是水蒸氣，水蒸氣在排氣管和消音器中冷凝的結(jié)果，只不過(guò)當(dāng)環(huán)境氣溫較高時(shí)，水蒸氣還沒(méi)有冷凝就已經(jīng)排出去了，當(dāng)環(huán)境溫度較低時(shí)，水蒸氣就會(huì)在排氣管壁冷凝成水滴，并且沿排氣管流出來(lái)了。特別是在冬季，冬季外界環(huán)境比較冷，空氣濕度大，汽車在運(yùn)行后，發(fā)動(dòng)機(jī)內(nèi)外溫差大，更容易出現(xiàn)汽車排氣管向外滴水的現(xiàn)象。

The reason why the exhaust pipe drips water is that the ambient temperature is relatively low. After the gasoline is completely burned, water and carbon dioxide are generated. The water is water vapor at high temperature. The water vapor condenses in the exhaust pipe and silencer. However, when the ambient temperature is high, the water vapor has been discharged before freezing. When the ambient temperature is low, Water vapor condenses into water droplets on the exhaust pipe wall and flows out along the exhaust pipe. Especially in winter, the external environment is relatively cold in winter and the air humidity is high. After the car is running, the temperature difference inside and outside the engine is large, which is more prone to the phenomenon of dripping water from the car exhaust pipe.