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ARS-30RB、ARS-30RA、ARS-30CA、ARS-30RF、
ARS-100RB、ARS-100RA、ARS-100CA、ARS-100RF、
ARS-180RB、ARS-180RA、ARS-180CA、ARS-180RF、
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ARS-460RB、ARS-460RA、ARS-460CA、ARS-460RF、
ARS-610RB、ARS-610RA、ARS-610CA、ARS-610RF、
ARS-930RB、ARS-930RA、ARS-930CA、ARS-930RF、
ARS-1050RB、ARS-1050RA、ARS-1050CA、ARS-1050RF、
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Filter and filter element knowledge
Why is the harm of oil in the air great?
A: in some strict places, such as the pneumatic control system, a drop of oil can change the condition of the air hole. So that the original normal automatic operation of the production line paralysis. Sometimes, the oil will also inflate the seal ring and cylinder of the pneumatic valve, resulting in sluggish operation and even serious blockage. In the process completed by air, such as blow molding parts, oil will also cause product appearance defects or surface pollution.
What is the main source of oil pollution?
Answer: since most of the compressed air systems use lubricating oil compressors, the machine will vaporize the oil into oil drops in operation. It is formed in two ways:
One is the so-called "dispersed droplet" produced by the shearing action of piston compression or blade rotation. Its diameter ranges from 1 to 5 μ M.
The other is the "condensation type liquid drop" formed by vaporization when the lubricating oil cools the high-temperature body, whose diameter is generally less than l μ M. this kind of condensation oil drop usually accounts for more than 50% of the total oil pollution weight and more than 99% of the total oil pollution actual particles.
3 what is the working principle of the filter?
Answer: the general filter element is composed of fiber medium, filter screen, sponge and other materials. The solid and liquid particles (drops) in the compressed air are condensed on the surface (inside and outside) of the filter element after being intercepted by the filter material. The droplets and impurities accumulated on the surface of the filter element are precipitated to the bottom of the filter by gravity and then discharged by the automatic drainer or manually.
What are the characteristics of glass fiber material used in filtration?
Answer: the glass fiber can effectively separate the lubricating oil drops with the diameter of 50-0.0l μ m, which need neither adsorption nor absorption during filtration. And it's very effective, better than other materials.
5 what is the simple working process of high efficiency coalescing filter?
A: after the compressed air enters the middle of the filter element, it is collected by the filter layer through gravity, collision, interception and penetration. When the oil drops are removed by the filter, they should be collected first. Small oil drops are first polymerized into large oil drops. When the mass of large oil drops is large enough, they will settle to the bottom of the filter layer. Then it flows into the filter tank and is discharged from the system by manual or automatic oil discharge device.
6. How is the grade of filter specifically divided?
A: the general filter grades can be divided into pre filtration, primary filtration, fine filtration and activated carbon filtration. Among them, the prefilter generally removes particles with a diameter of 3-5 μ m, the primary filter generally removes particles with a diameter of 0.5-1 μ m and residual oil mist content of 1ppm w / W, the fine filter generally removes particles with a diameter of 0.01 μ m and residual oil mist content of 0.0lpppm w / W, and the active carbon filter is mainly used to remove odor and oil vapor (residual oil mist content is only 0.003ppm w / W)
7 What are the applicable occasions of different grade standards of filter?
Answer: prefilter is generally used in the downstream of compressor (aftercooler), and the application situation is not high. The primary filter is generally used for tools, motors, cylinders, etc. Fine filter is generally used for painting, injection molding, instrument, control valve, transmission, mixing, electronic component manufacturing, nitrogen separation, etc. Activated carbon filter is generally used in food and drug manufacturing, breathing air, gas processing, etc.
Why do you want to choose the filter?
Answer: common people's mistake is, think according to the air quality that needs to choose the single filter that corresponds to processing precision can achieve the requirement, and save expenses. In fact, the required air quality is determined by the processing accuracy of the selected single filter,But without pre-treatment protection of the low-level filter, the high-precision filter element will soon be blocked due to excessive load, accelerating the replacement frequency of the filter element, thus increasing the production cost in a disguised way.
9 what is the relationship between filter efficiency and air temperature?
A: the temperature of oil and water in the compressed air affects the efficiency of the filter. For example: when the temperature is 30 ℃, the oil content passing through the filter is 5 times of that at 20 ℃; when the temperature rises to 40 ℃, the oil content passing through the filter is 10 times of that at 20 ℃. Therefore, the filter is generally installed at the low temperature of the compressed air system.
What are the 10 filter options?
Answer: the optional parts of filter generally include: internal automatic drainer, external automatic drainer, differential pressure gauge, differential pressure gauge, electronic differential pressure indicator and liquid level indicator.
What is the purpose of the optional filter?
Answer: the internal automatic drainer and external automatic drainer in the filter options are used to automatically discharge the mixture of oil, water and dust filtered from the filter element, so as to reduce the influence of human factors on the filtration efficiency of the system. Differential pressure gauge, differential pressure gauge and electronic differential pressure indicator are used to guide the replacement time of filter element. The liquid level indicator is used to indicate the amount of mixed pollutants of oil, water, dust, etc. inside the filter (it can monitor the working condition of the internal automatic drainer and guide manual blowdown).
12 how to determine the replacement cycle of filter element?
Answer: the replacement cycle of filter element is determined by its pressure drop. Generally speaking, the pressure drop exceeds 0.68kgf/cm2, and the pointer of filter differential pressure gauge points to the red area, or it needs to be replaced after 6000-8000 hours (one year). The activated carbon filter element is replaced when an odor is detected downstream.
13 why replace filter element regularly?
A: after the filter element is continuously polluted, the gas flow will be reduced in the system and the pressure drop will be increased. At the same time, the energy and power consumption will also rise. As a result, the cost of operation and production will be increased and the burden of the environment will be increased.
What should be paid attention to when installing the filter?
Answer: (a) the working pressure shall not exceed the large pressure indicated by the filter.
(b) Generally, the filter shall be installed after the aftercooler and the air storage tank, as close as possible to the use point and low temperature point.
(c) The filter shall not be installed after the quick opening valve and shall prevent backflow and impact.
(d) The filter shall be installed vertically and there shall be enough space below to replace the filter element.
(e) The larger filter shall be properly supported in the pipeline.
15 what are the precautions for replacing the filter element?
Answer: (a) isolate the filter, close the air inlet valve or compressed air supply system, and then close the air outlet valve after the pressure is completely relieved (or close the relevant valve and then completely relieve the pressure through the filter drain hole).
(b) Screw off the housing and remove the old filter element.
(c) Clean the filter housing.
(d) Replace the filter element with a new one (do not miss the sealing ring, the filter element should be installed tightly and correctly.)
Welcome to call for filter element details!
Company: Hangzhou Jiajie Electromechanical Equipment Co., Ltd
Address: 268 Shida Road, Jianggan District, Hangzhou
Tel: 0571-86458031 Fax: 0571-86465021
Mobile: 13606607916 wechat; the same number
E-mai:zsp615@163.com website: www.86458031.com
Contact person: Zhu sai