What are the failures that oil free vacuum pumps are prone to?

The main failures that oil-free vacuum pumps are prone to are:

1. Cracks and cracks in the shell.

Vacuum pumps often cause cracks or fractures in parts due to casting and processing defects, internal stress and overload operation.

2. The bearing position of the pump shaft is worn.

Wear and tear in the drive parts of vacuum pumps is a common problem, including bearing positions, housings, bearing chambers, keyways and threads.

3. Corrosion. The form of vacuum pump corrosion can be divided into two categories: general corrosion and local corrosion, the former occurs more evenly on the entire surface of the "Pronuock" vacuum pump, and the latter only occurs locally.

Hello dear and happy to answer for you. What are the reasons why the negative pressure of the oil-free vacuum pump cannot reach the following reasons:1

Air leak 2The pumping capacity of the vacuum unit is too small3The vacuum pump malfunctioned, and the pumping capacity was reduced.

The reasons that affect the vacuum degree of the vacuum pump are not bent enough: 1. The blades of the vacuum pump are worn, and the contact surface is not large enough when rubbing against the cylinder block, resulting in insufficient vacuum level. 2. The vacuum pump cylinder body is worn, and the wall of the cylinder may be worn, resulting in insufficient vacuum.

3. The rotor of the vacuum pump is displaced. The standard safety orange collapse position of the rotor and the end cover is deviated, resulting in insufficient vacuum, which can be corrected by the manufacturer. 4. Air leakage in the inlet pipeline and connection of the vacuum pump, after a long time of use, the aging of the sealing gasket causes the vacuum pump to leak, resulting in insufficient vacuum.

5. Whether the motor is normal. If the motor does not rotate properly, the pumping speed will slow down, resulting in insufficient vacuum. 6. The vacuum pump oil is emulsified, carbonized, the oil quantity is insufficient or the oil quality is wrong.

If the vacuum pump is not replaced frequently and manually maintained during long-term use, the vacuum pump oil will be emulsified or carbonized, which will lead to a series of problems such as wear and tear of the vacuum pump cylinder, blockage of oil pipes, and blockage of oil filters. 7. The vacuum pump oil filter is blocked or damaged. Vacuum oil filter is also known as oil mist separator, oil filter, exhaust filter and other names, if the oil mist separator is blocked, the gas pumped into the pump body will not be easy to discharge

Reason: Some vacuum pumps cannot work at atmospheric pressure and need to be pre-vacuumed; Some vacuum pump outlet pressure is lower than atmospheric pressure, and a backing pump is required, so the pumps need to be combined.

Solution: Check whether the intake and exhaust ports are connected wrongly, and if the three-phase pump is reversed, see if the motor is reversed. If the vacuum pump motor is still good. And if it is a pump with different working methods, the reasons for not working normally are still different, and it cannot be generalized.

Due to the selective pumping of vacuum pumps, the selection of one pump can not meet the pumping requirements, and several pumps need to be combined to complement each other to meet the pumping requirements. For example, the titanium sublimation pump has a high pumping speed for hydrogen, but cannot pump helium, and the three-pole sputtering ion pump has a certain pumping speed for argon.

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Question: The vacuum packaging machine does not vacuum.

Answer: Hello, glad to answer your question, the solution to the vacuum machine not vacuuming is to clean or replace the exhaust filter and install it correctly, there is an air leak, check whether the solenoid valve has air leakage and exclude, the air extraction filter is blocked or polluted, clean or replace the exhaust filter, I hope it will help you [happy].

Ask if there is a vacuum to clean or not.

I've tried asking questions, but there is still no vacuum.

The pipeline between the container and the vacuum pump is blocked or leaking, whether the air filter element is blocked, and the garbage needs to be cleaned up after a long period of use. 3.Vacuum pump blades do not create a vacuum when they are broken, and the blades need to be replaced.

4.Check the vacuum pump oil, the vacuum pump oil injection should be appropriate, and it should be replaced after a long time. The use of other oils is strictly prohibited.

Question: None of the above.

Cover your face] [cover your face] [cover your face].

Ask where the airbag is.

Where are the airbags located.

Dear, I am glad to answer for you that the vacuum pump has less lubricating oil, resulting in insufficient oil supply and poor lubrication, resulting in mechanical accidents. Therefore, when refueling, you can't "rather fill more" because you are afraid of insufficient fuel. In fact, too much oil will not only increase the consumption of dynamic digging force due to the increase of rotational resistance of the crankshaft, but also know that the oil is prone to gas bubbles, emulsification and leakage, resulting in poor lubrication and nucleus.

Therefore, it is said that it should be checked for a while to prevent damage to other parts such as the pump. The vacuum pump is caused by no oil yet.

5 reasons: (1) the influence of high temperature on vacuum pump oil: vacuum pump oil has been in the high-temperature environment for a long time, and it will oxidize and fail, and the phenomenon of blackening and thickening will appear; Increase in the corrosion inside the vacuum pump oil, such as the acidic substances formed in the engine operation; Substances such as carbon deposits, mud and paint film before oil search increased.

2) The influence of impurities on vacuum pump oil: mainly dust, metal abrasive particles, leakage (water, miscellaneous oil, etc.) in the air, vacuum oil oxides and substances produced by fuel combustion. (3) Additive failure:

Some vacuum oils have experienced degraded performance due to the failure or depletion of additives in them. For example, when the anti-wear agent in the vacuum oil is depleted, the wear resistance will be reduced. (4) Viscosity index improver failure:

Because the long chain of organic molecules is broken, it no longer has the effect of improving viscosity and temperature performance. (5) Base oil failure: base oil is the carrier of additives, and additives will not play a role if the base oil fails.

A true empty pump oil leak may be due to an oil level that is too high and leaking along the bore of the bearing cover at both ends of the bearing housing. Seal kit point oil leakage. True Empty pump end cover leaking oil.

True oil leakage in the position of the empty pump bearing, according to Yazhide Electromechanical Technology, is mainly caused by the hardening of the oil seal. Regiment sails.

True Empty Pump Introduction:

Vacuum pump refers to a device or equipment that uses mechanical, physical, chemical or physicochemical methods to pump air from the pumped container to obtain a vacuum. A vacuum pump is a device that raises, generates and maintains vacuum in a certain closed empty chamber through various methods.

True General Structure Type of Empty Pump:

The layout structure of the vacuum pump body determines the overall structure of the pump. The intake and exhaust outlets of the Lidasen structure are arranged horizontally, which is convenient for the assembly and connection of pipelines. However, the center of gravity of the pump is high, and the stability is poor at high speed, so this type is mostly used for small pumps.

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