Air Filter Brands | Air Filter Manufacturers | Air Filters | What is an Air Filter
Release time:
2020-10-17
With the development of science and technology, in the process of human society transforming from the initial agricultural civilization to modernization, more and more factories appear on the earth, accompanied by the emission of chemical exhaust. Nowadays, environmental protection is a global common problem, and air pollution is affecting every human being, so today we will talk about it.Air filter.
The air filter is a device that captures and collects dust from the gas-solid two-phase flow under the action of filter materials through multiple holes, and makes the air purified. The air filter can send the air with low dust content into people's room after purification treatment, thus ensuring the cleanliness of the room and the clean air in the air conditioning room of the office building.
In the above, we introduced that the air filter refers to the air filtering device, which is suitable for work workshops, workshops and laboratories, and can also be used for dust prevention on electronic and mechanical communication equipment. According to the function, it can be divided into a variety of models, such as initial effect, medium effect, high efficiency and sub high efficiency. In the use of pneumatic technology installedAir filterAt the same time, in order to get more functions, factories often assemble these three gas source processing components in a certain order, and then use them for gas source processing, filtering gas, decompression and increasing lubrication. Generally installed in the gas equipment components are the final guarantee of the quality of compressed air, its design and installation process is convenient to operate, whether it can be arbitrarily combined and other factors.
Air filterunqualified hazards of air compressor:
In modern industrial production, air filters are used more and more widely, and they play an important role in improving production efficiency, product quality, production operation, automation and work reliability.
As an air source, the compressed air discharged through the air filter contains a large amount of mixed impurities, such as water vapor, oil vapor and dust. If compressed air containing these impurities is delivered directly to the air filter, it will have serious consequences for the entire system:
1. High-pressure oil and natural gas accumulate in the system pipelines, forming flammable and even explosive mixtures. At the same time, the oil evaporates at high temperatures to form organic acids, which have a corrosive effect on metal equipment.
2. As the mixture of water, oil and dust is deposited in the pipeline, the flow area of the pipeline decreases and the airflow resistance increases. In severe cases, the pipeline may even be blocked, resulting in unstable operation of the entire system.
3. In the freezing season, freezing after water vapor condenses will damage pipes and fittings.
4. Impurities such as dust in compressed air will grind the corresponding moving parts. When the wear is serious, it will cause leakage and affect the accuracy and service life of the equipment.
5. Compressed air is used for paint, chemical and food processing purposes. If it contains moisture, oil and impurities, it will cause product pollution, reduce product quality, and even scrap products, affecting corporate reputation.
6. Various injuries to the human body.
In addition to the problems related to the compressed air system, if pollutants such as water, solid particles and oil are discharged through valves, cylinders, air motors and other tools, it will also have a serious impact on the ecological environment. Such as the production of dust, toxic gases. So in the purchase to the right business to buy.
First effectAir filterThe filter material is generally made of nylon woven cloth, metal mesh, glass mesh and nylon mesh. The form of its structure can be divided into plate type, folding type, strip type and winding type. The air compressed from the inside of the component contains excessive water vapor and oil droplets, as well as solid impurities, such as rust, gravel, pipe sealant, etc., which will damage the product piston sealing ring to block the small holes in the original, shorten the service life of the machine, or make it lose its effect. The function of the air filter can separate the liquid water and liquid oil in the air and filter out these impurities in the air, however, it does not remove gaseous water or oil.
Through the introduction of the air filter in the above content, I don't know if you have mastered its basic knowledge. I hope you can gain something from it.
Air filter(Air Filter) is usually refers to the air filter device, in most cases clean workshop, clean workshop, laboratory and clean room are required to be equipped with air filter, sometimes electronic machinery and communication equipment such as dust also need air filter. At present, air filters have primary effect filters, medium effect filters, high efficiency filters and sub-high efficiency models. Of course, various models have different standards and use efficiency.
As the treated compressed air from the gas source contains a variety of impurities, usually water vapor and oil droplets, and some solid impurities, such as rust, sand, pipe sealants, etc., these impurities accumulate for a long time. It will damage the piston sealing ring and block the small exhaust holes on the components, which will shorten the service life of the components or fail for a long time. At this time, the role of the air filter is highlighted. The air filter is used to effectively separate the liquid water and liquid oil droplets in the compressed air, and it can filter out the dust and solid impurities in the air, but it also has a disadvantage. It cannot remove gaseous water and oil.
First effectAir filterIt is used to remove dust particles ≥ 5μm. Its initial resistance is ≤ 50Pa. The primary air filter can play the role of pre-filter protection in the air conditioning purification system. Of course, it can also protect the air conditioning. Other accessories in the box will effectively extend their service life.
The medium effect filter is used to remove dust particles ≥ 1.0μm. Its initial resistance is ≤ 80Pa. The medium effect filter acts as an intermediate filter in the air conditioning purification system, which can fully reduce the load of the high efficiency filter and effectively extend the service life of all accessories in the high efficiency and air conditioning box.
The sub-high efficiency filter is used to remove dust particles ≥ 0.5μm, and its initial resistance ≤ 120Pa. The sub-high efficiency filter plays the role of an intermediate filter in the air conditioning purification system, so it usually plays the role of a terminal filter in the low-level purification system.
The high efficiency filter is used to remove dust particles ≥ 0.3 μm, its initial resistance ≤ 220Pa, and the high efficiency filter is used as a terminal filter in the air conditioning purification system.
Air filterSelection principles:
According to the specific circumstances to reasonably choose the appropriate air filter, the selection principle is as follows:
1. According to the clean purification standard required by the room, determine the efficiency of the final air filter, and reasonably select the combined series of air filters and the efficiency of all levels. If general purification is required indoors, primary effect filters can be used. If medium purification is required indoors, primary effect and medium effect two-stage filters should be used. If ultra-clean purification is required indoors, primary effect, medium effect and high efficiency three-stage purification filtration should be adopted, and the efficiency of all levels of filters should be reasonably and properly matched. If the efficiency of adjacent two-stage filters is too different, then the former filter cannot protect the latter filter.
2. Correctly determine the dust content and dust particle characteristics of outdoor air. Because the air filter is to filter and purify the outdoor air into the room, the dust content of the outdoor air is a very important data. Especially in the multi-stage purification and filtration treatment, when selecting the pre-filter, the use environment, spare parts cost, operation energy consumption, maintenance and supply and other factors should be considered comprehensively.
3. Correctly determine the air filter characteristics. The characteristics of air filters are mainly filtration efficiency, resistance, penetration rate, dust holding capacity, filtration wind speed and air volume. When conditions permit, filters with high efficiency, low resistance, large dust holding capacity, moderate filtering wind speed, large processing air volume, convenient manufacturing and installation, and low price should be selected as far as possible. This is the economic analysis needs of considering one-time investment and two-time investment and energy efficiency ratio when selecting air filters.
4. Analyze the properties of dusty gases. The nature of the dust-containing gas related to the selection of air filters is mainly temperature, humidity, acid and alkali, and the amount of organic solvents. Because some filters are allowed to be used at high temperatures, and some filters can only work at room temperature and normal humidity, and the amount of acid-base and organic solvents in the dust-containing gas has an impact on the performance and efficiency of the air filter.
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