Intrinsic Leakage Knowledge of Vacuum Pump Unit

When referring to the leakage phenomenon of vacuum pump unit, we should pay attention to the fact that most of it will occur on a device with water-cooled jacket. Referring to the phenomenon of internal leakage of vacuum pump unit, in fact, we did not find any doubtful points when we looked at the leakage, but in fact, the pumping speed of its mechanical pump will be significantly lower, and the vacuum gauge is relatively low or the mechanical pump oil is quickly emulsified.
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Vacuum pump unit
Next, we will find that the iron-based parts in the vacuum chamber of the vacuum pump unit will be significantly corroded. In fact, we can basically conclude that it has an internal leakage phenomenon. At this time, we should also pay attention to the cleaning of the inner wall. Next, we should pay attention to the cooling water to see if it has a wet point. Its wet point is its leak point.
In fact, the leakage of vacuum pump unit is very difficult to check. Our common method is to use the ionization tube under high vacuum to detect the leakage, which is sensitive to the reaction of some gases. The more common one is actually acetone or ethanol, which can be sprayed directly to suspicious areas with medical syringes. When the spray reaches the leak point, we will find that there will be a significant swing on the ionometer's pointer.
In this way, we must have patience to detect leakage of vacuum pump units. We must wait until the indication of Ionometer has been stabilized. In this respect, we will find that in fact, it will be able to achieve the balance between pumping ability and leakage rate, and then, it will be able to complete the eruption.
As for the larger leakage point of the vacuum pump unit, we can actually use the flame method directly. In this respect, we actually use the air flow to make the flame deviate directly. We should pay attention to the principle that vacuum should be pumped first. Then, we should pay attention to the fact that candles or lighters should be used in vacuum. The suspicious points of pumping units are gradually searched nearby.

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