Explanation - rotary vane vacuum pump fault handling methods

if the rotary-vane vacuum pump operation is not normal, often appear fault, such as rotary vane vacuum pump vacuum degree decline, smoking, injection, oil seal leakage, noise, etc. And vacuum pump oil emulsion in the pump, etc. In this case, first of all, don't panic, shutdown to eliminate them one by one. The following is the method of rotary vane vacuum water pump failure, in the hope that useful to everybody!

1。 Rotary-vane vacuum pump are smoke and oil: refers to the operation of the smoke from the rotary-vane vacuum pump outlet or injection.

1, smoking, smoking if the pump just started running the phenomenon, belongs to the normal, if smoking for a long time is not normal. Solution: smoke said repair outside the pump suction pipe, valve and container. After the leak detection, the smoke will disappear.

2, fuel injection means intake outlets have a lot of leakage points, even the air intake is exposed to the atmosphere. Solution: seal the air inlet of the pump, pump running. If there is no injection oil, there is a leak. Exhaust valve damage, check whether the exhaust valve piece is damaged, replacement of damaged exhaust valve.

2。 The noise of the rotary-vane vacuum pump are: here refers to the noise of the pump.

1, knocking, irregular noise when pump is running, like the sound of metal banging on metal. This is the voice of a rotor pump body impact. This situation mainly by paired rotary plate spring break or contraction or pop-up caused failure. The solution: open the pump, check whether the helical spring is damaged. Replace the spring.

2, noise, exhaust valve mainly pump exhaust valve damage. Solution: replace the exhaust valve.

3。 Rotary-vane vacuum pump vacuum decline: refers to the current measured rotary-vane vacuum pump or before using the vacuum degree of vacuum degree is lower than the factory indicators. There are many reasons for low vacuum degree. Here are some main conditions.

1, the adding of rotary-vane vacuum pump oil brand is different from original factory. Different levels of vacuum pump oil because of the different grades of oil saturation vapor pressure is different, the result is also different. Solution: according to the product's type and specification change correct new vacuum pump oil.

2. In addition, caused by the vacuum pump oil vacuum degree is low, namely vacuum pump oil was emulsified and discoloration, or too dirty. Solution: all of the vacuum pump oil drain pump, the replacement of the same type vacuum pump oil, solve did not enter inside the pump is pumping water vapor in the gas and impurities.

3, pumping gas temperature may be too high. Solution: reduce pumping gas temperature or increase the corresponding heat exchanger.

4, inside the pump oil blockage or poor, no reserve a certain amount of oil pump cavity. Solution: check whether the oil is flowing, and add the same type of vacuum pump oil.

5, increase coordination gap. This is due to long-term pumping gas containing dust and so on, this led to a rotary vane vacuum pumps and clearance between stator increase after the wear and tear. Solution: check whether the gap is too big, and replace the new parts.

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