混凝土攪拌機油箱氣孔的作用？
混凝土攪拌機，說起油箱大家應該都不陌生，只要是需要燃油的車輛都是有油箱的，專用車中的攪拌車也不例外，為了防止油箱內的燃油因震蕩而外濺及燃油蒸汽的遺失和外部灰塵的進入，油箱都加蓋而且要密封，但是你們發現沒有，油箱上是有一個小氣孔的，這個氣孔是起什么作用的？混凝土攪拌機油箱上如果沒有氣孔會發生什么情況呢？封閉的油箱會因為燃油的消耗而形成一定的真空度，導致油泵失去吸油能力；油箱內氣溫較高的時候，燃油揮發會加大油箱內部的壓力，導致氣壓失衡。
As for concrete mixer, we should be familiar with the fuel tank. As long as the vehicles that need fuel have fuel tank, the mixer truck in the special vehicle is no exception. In order to prevent the fuel in the tank from splashing outside due to vibration, the loss of fuel vapor and the entry of external dust, the fuel tank is covered and sealed. But do you find that there is a small air hole on the fuel tank What is the function of a pore? What happens if there is no air hole on the tank of concrete mixer? When the pressure in the fuel tank is increased, the fuel pressure in the fuel tank will be increased, which will lead to the loss of fuel suction capacity in the fuel tank.
混凝土攪拌機油箱的透氣孔一般都安裝在什么地方？
Where is the air hole of the oil tank of concrete mixer generally installed?
1. 安裝在油箱蓋內置閥門上：它可以根據自動開閉，平衡內外氣壓。
1. Installed on the built-in valve of the oil tank cover: it can open and close automatically to balance the internal and external air pressure.
2. 安裝在油箱鑰匙孔閥門上：這種在老車型上比較常見。
2. Installed on the valve of the fuel tank key hole: this kind of valve is more common on old models.
3. 油箱外置通氣孔：現在的商用車大多都是在油箱頂部預留通氣孔，便于吹氣檢查，比如混凝土攪拌車、隨車吊等等。所以如果你的專用車油箱蓋上帶有透氣孔，一旦油箱蓋丟失切勿隨意封死油箱口，而忽視了通氣性。曾經有個卡友在給車輛放油的時候，忘記打開加油口，導致油箱吸癟，這就是真實的教訓，希望各位引起重視。
3. Air vent outside the fuel tank: most commercial vehicles now reserve air vent at the top of the fuel tank for air blowing inspection, such as concrete mixer truck, truck mounted crane, etc. Therefore, if you have a vent on the fuel tank cap of your special vehicle, once the fuel tank cap is lost, do not seal the fuel tank opening at will, ignoring the ventilation. There was a friend who forgot to open the fuel port when he was discharging fuel to the vehicle, which caused the fuel tank to shrink. This is a real lesson. I hope you will pay attention to it.
混凝土攪拌機，油箱透氣孔堵塞不僅會導致油箱吸癟，還會導致油泵無法抽取燃油，進而出現熄火、動力不足或者熱機狀態啟動困難等現象，嚴重時還會導致油箱變形破裂，導致燃油泄漏或者火災爆炸等危險。
The blockage of the vent hole of the concrete mixer and the oil tank will not only cause the oil tank to shrink, but also cause the oil pump to be unable to extract fuel, and then the phenomenon of flameout, insufficient power or hot engine start-up difficulty will occur. In serious cases, it will also lead to the deformation and fracture of the fuel tank, resulting in fuel leakage or fire explosion.
混凝土攪拌機怎么預防油箱透氣孔堵塞：
How to prevent the air hole of the oil tank from being blocked by the concrete mixer:
1. 經常檢查透氣孔，防患于未然。
1. Check the air vent frequently to prevent accidents.
2. 在加油時留意油箱蓋開啟時的氣流聲，一種是出氣聲，這種聲音是正常的，另一種是吸氣聲，此時要注意，這可能是油箱內的壓力低于外部壓力，油箱透氣孔有可能是堵塞了。
2. Pay attention to the air flow sound when the fuel tank cap is opened. One is the air out sound, which is normal, and the other is the suction sound. At this time, it should be noted that the pressure in the fuel tank is lower than the external pressure, and the vent hole of the oil tank may be blocked.
3. 對于鐵質的透氣孔，盡量用紗窗包一下，如果是透氣孔是塑料軟管，那就將其口朝下，這樣可以避免堵塞。
3. For iron vents, try to wrap them with screen windows. If the vents are plastic hose, the mouth should face down so as to avoid blockage.
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