SMC Pneumatic Knowledge Lecture Hall - Air Source Treatment

What products are available for compressed air treatment

What kind of pollutants are in the air?

When it comes to the composition of the air, please look up at the sky, is the sky like rain, fog and wind? That's right, what forms such a beautiful scenery is the official so-called "haze", which for us is a small solid particle.

Yes, you're right, in addition to small particles, there is also moisture in the air. That's not a good thing for pneumatic products. Because, the solid particles and moisture in the air are the "killers" of our pneumatic components.

In order not to be killed by them, we have to kill them first. Therefore, this is where we need to sacrifice AF: Air Filters, which is a big killer.

What is the filtration accuracy

Before we talk about filters, first of all, let's first mention the basic parameter of the filter - filtration accuracy (the minimum diameter of the particles to be filtered). For different use locations, the corresponding processing accuracy is also different. In a nutshell, it's as follows:

SMC Pneumatic Knowledge Lecture Hall - Air Source Treatment

After understanding the basic parameters, now let's get to the point, let's discuss the working principle of the filter, Mr. Zhang has prepared a visual GIF for you, I hope you can get some inspiration from it.

Editor's remarks time: If you have not made any progress for a long time, you can first read the instructions in the box below aloud on both sides, and then look at the picture below.

Description of the working principle of the filter:

The compressed air flowing from the inlet rotates strongly through the tangential notch of the deflector, and the liquid oil-water and solid pollutants are thrown onto the inner wall of the glass and then to the bottom by centrifugal action.

Compressed air, which removes liquid oil, water and large impurities, passes through the filter to further remove the fine particles, and then flows out of the outlet.

The baffle prevents the lower liquid oil from being swept back into the gas stream. Condensate accumulated in the cup can be discharged from the drain at the touch of a manual button.

Of course, if you fully understand the working principle, you will still encounter many problems in the actual use process.

Therefore, Mr.Zhang has also prepared a few intimate tips for you in advance, hoping to help you:

Tip 1: Replace the filter element in time

When the pressure difference between the inlet and outlet is greater than 0.1 MP, or if it has been used for more than 2 years. Be sure to replace the filter cartridge!!

Editor's remarks time: The replacement should be replaced in time, after all, these costs and component damage caused by improper air treatment are really a drop in the bucket, and the boss should calculate this account

Of course, from the perspective of environmental protection, is there a filter cartridge that can be washed and reused?

Then this needs to be seen according to the material of the filter element. At present, the common filter element materials on the market are mainly made of non-woven fabrics, cotton paper, metal filter elements, etc., but only metal filter elements can really be reused... In addition, neutral solvents must be used for cleaning.

Editor's remarks time: In addition, the filter element is classified from the type: it can be divided into metal mesh type, sintered metal type and fiber coagulation type.

Tips2: Distinguish between normally open and normally closed drains

There are automatic drains and manual drains, and in general, there are more automatic drains. There are two types of automatic drainage: normally open type and normally closed type.

However, it is important to remember that the normally open type is not the same as the usual leakage!!

The following two figures are two types of working principle schematic, is it up and down, left and right, the more you look at it, the more confused, how can you not tell which is normally open, which is normally closed?

It doesn't matter, just judge according to the description under the picture.

Well, not only do you understand how the two types of drainage work, but you can also tell them apart. Now who would dare to say that normally open air leaks are normal? Let's let Mr. Zhang touch his head and promise not to hit you.

Tips3: There are requirements for installation

· Pre-blowing before assembly to prevent the ingress of debris and dust generated during the piping process and the mixing of sealing materials.

Do not install the inlet and outlet directions in reverse, but install them vertically, with the water cup pointing downwards and flowing out of the maintenance space.

· The front section of the filter should be equipped with a shut-off valve for maintenance.

· The drainage pipe should be fixed to prevent the discharge speed during the drainage process from being too fast, causing the drainage pipe to throw off people.

Tips4: Maintenance should be strengthened

Regularly check the water cup for cracks to prevent rupture and injury.

· The material of the water cup is usually carbonate polyester, and it is necessary to avoid using it in the environment of organic solvents and chemical mist. To use it, choose a nylon cup or a metal cup, and use a metal cup in a hot environment.

· Avoid sun exposure, it will really really Boom

SMC Pneumatic Knowledge Lecture Hall - Air Source Treatment

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