What is the standard for replacing lubricating oil in air compressors?

Proper viscosity, good viscosity temperature characteristics. The viscosity of the compressor oil must be selected appropriately, if the viscosity is too high, it is not easy to transport and consumes a lot of energy, and it is easy to precipitate carbon and coke; If it is too low, it will not play a lubricating role. Due to the rapid increase in temperature during compressor operation, good viscosity performance of compressor oil is required.

Good oxidation stability, which is an important performance to ensure that the lubricating oil produces less sludge and carbon deposits during the operation of the compressor. Due to the large temperature rise after gas compression, the lubricating oil is easy to oxidize to form sludge and carbon deposits at high temperatures (the exhaust temperature is 75 95, sometimes up to 110 or more), so the compressor lubricating oil is required to have enough stability to make it not easy to decompose and form carbon deposits.

Good demulsibility and foaming resistance. There are surfactant substances in the compressor oil, which form emulsion and emulsion water with air, condensate and sludge in the lubrication system, which will make the oil oxidize and deteriorate, destroy the lubricating oil to form an oil film, make the effect of the lubricating oil worse, accelerate the corrosive effect of organic acids on metals, corrode the equipment, and make the oil easy to form sediment. Moreover, the additives will be invalidated by hydrolysis reaction, and the sediment produced will block the oil channel and hinder the circulation of lubricating oil.

Low residual carbon value. Carbon residue is an important indicator that affects the amount and nature of carbon deposits produced by compressor lubricants in use. The main substances that form residual carbon in lubricating oil are gum and asphaltene of oil.

Under the condition of insufficient air, these substances are decomposed by strong heat and condensed to form a glue film, which is deposited on various parts of the cylinder at a low temperature to form carbon deposits.

Carbon deposits do not conduct heat easily, and when carbon deposits increase, they will hinder heat dissipation and overheat the parts. When the carbon deposition in the air compressor is serious, it may cause spontaneous combustion of lubricating oil vapor and air mixture, and even cause the ** of cylinder and exhaust pipe.

There is an oil drain port under the oil storage barrel, usually a screw plug or something, and some are equipped with ball valves.

Shut down the machine first, wait for the pressure in the air compressor to be discharged, open the oil drum cover and oil drain port, and put it out, some models also have an oil drain port on the radiator, if there is, also put the oil in the radiator. Finally, add the oil. How much to add, look at the oil mark or look at the oil mirror yourself.

If the new oil is of a different grade than the last one, clean the drum.

Hello, generally speaking, the air compressor oil change is to put the dirty oil as much as possible, but this operation is too troublesome, and it is impossible to do this in actual operation, but one thing that must be done is that at the same time as the oil change, the oil filter and the oil-gas separator should be changed together as much as possible. Shandong Hongrun is happy to answer for you.

Generally, the lubricating oil needs to be changed after 2000 hours of operation, especially for the first 2000 hours. It is also possible to shorten and extend the replacement time depending on the environmental situation. But it should not be delayed for too long.

Every time you change the oil, you also need to change the oil filter.

The oil-injected screw machine is replaced with new oil every 2000 hours of operation, and the filter is replaced at the same time as the oil is changed;

Oil change: 50 hours of operation since the first start-up, oil change, after the first change, change the oil every 300 hours, change the oil and change the oil filter at the same time.

The problem is a bit general, and the new machine is generally pulled in 500 hours. Then the air compressor is divided into screw type, piston type, rotary type, and many manufacturers, or they are all the same

This problem is a bit general, the air compressor is divided into piston machine, screw machine (single screw, twin screw, oil-free machine, water lubrication) centrifuge, dicing machine.

For example, the most commonly used screw air compressor, the oil change cycle is generally 2000 hours or 3 months. According to the different oil products and different use environments, the replacement cycle of air compressor oil is also different.

Replacement is based on the number of hours of operation.

Different labels are different!

In fact, there is no semi-synthetic mineral oil on the market, 3500h synthetic mineral oil 7500h (except for the first insurance).

Generally speaking, don't fill it too full, two-thirds is about the same.

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There is a transparent viewing window on the side, which is slightly higher than the red line.

It is generally an oil mirror with two lines on it.

One is H (High) is the high oil level, and the yellow one is the L (Low) low oil level, red.

As long as the oil level is between the two lines after the machine is running normally.

Summary. Enter the password of the air compressor of the corresponding brand (you can consult the after-sales or maintenance staff). Enter the control system. Modify the service time.

The operating screw air compressor warns that the lubricating oil is overdue, but it is only an early warning and will not be shut down. But replace the three filters and lubricating oil as soon as possible. Continuing to operate without oil change directly affects the service life of the air compressor.

How to adjust the use time of air compressor grease?

After entering, type the password of the corresponding brand of air compressor (you can consult the after-sales or maintenance staff). Enter the control system. Modify the virtual maintenance time, the screw air compressor in operation is in operation, the lubrication difference is overdue, and the oil is overdue, which is only an early warning and will not be shut down.

But replace the three filters and lubricating oil as soon as possible. Continuing to operate without oil change directly affects the service life of the air compressor.

Pro: You just can't lose.

The modification is not possible. What about you?

I just don't know how to operate in the interface.

Can you send a **.

Wait a minute.

Good. When a certain period of service is reached, the air compressor will automatically shut down, and the air compressor administrator will be notified through software or other ways to carry out maintenance. After each maintenance of 3 filters and 1 oil, the maintenance staff will prompt the maintenance time and reset it.

However, to operate the control system, Wu Zao needs to enter the factory password of the brand machine, and if there is no password, it is impossible to adjust it.

We've entered the password, but the interface doesn't have a debugging function.

Wait a minute.

In the password input box, enter the password", press the "OK" button, and then press the "Menu Glory Pants List (ME)" button twice to enter the system menu and select "Equipment Debugging".

1.Start the air compressor and let it run for about 5 minutes, and stop when the oil temperature rises to about 50 and the viscosity of the lubricating oil decreases significantly. Test whether the oil drain valve is tightened with the first tool, as shown in the figure.

2.Then pay attention to observe the internal pressure of the oil and gas barrel, and when the pressure is found to be left and right, open the oil drain valve at the bottom of the oil and gas barrel and connect the oil storage tank. Note that the oil drain valve must be opened slowly, otherwise it is easy to cause the lubricating oil to splash and hurt people.

3.When the lubricating oil is discharged cleanly (when the lubricating oil is discharged in a droplet shape, it means that it has been initially discharged), close the oil drain valve, and then unscrew the oil filter element of the air compressor, and drain the lubricating oil in each pipeline at the same time, and it is recommended to replace the oil filter element at the same time. As shown in the figure below.

However, although the oil change process is over, our work is not over, and we must carefully check the oil storage tank and other parts of the air compressor to see if there is any leakage, and the work is completed after confirming that everything is normal.