First, we should consider the exhaust pressure and the quantity of the exhaust.
Based on the national standard, the exhaust pressure of general purpose atmosphere compressor is 0.7 MPa (7 atmospheric pressure) and the old regular is 0.8 MPa (8 atmospheric pressure). Because the style operating pressure of pneumatic tools and wind machinery is definitely 0.4 Mpa, the working pressure of atmosphere compressor can fully meet the requirements. If the air flow compressor utilized by the consumer is larger than 0.8MPa, it should be specially manufactured. The technique of forced pressurization can not be adopted to avoid accidents.
The size of the exhaust can be one of the main parameters of the air compressor. Choosing the surroundings volume of the surroundings compressor should match its exhaust volume and leave a 10% margin. If the surroundings volume is huge and the air flow compressor exhaust quantity is little, when the pneumatic equipment begin, the exhaust pressure of the air flow compressor will be greatly reduced, however the pneumatic tools can’t be driven. Of course, additionally it is wrong to pursue large exhaust capacity blindly, since the larger the exhaust capability, the larger the electric motor allocated by the atmosphere compressor, not only the higher the price, but also a waste materials of buying funds, and the usage of power and energy will end up being wasted.
Consider the combination of gas fields and conditions.
If the use of air space is narrow, it must be vertical; when there is a long-distance change in the usage of air (more than 500 m), mobile type is highly recommended; if the use of electricity can’t be used, diesel engine generating type ought to be selected; if there is no timing pulley circulating water in the use of occasions, air-cooled type ought to be selected. In the air-cooled and water-cooled cooling settings, many users have an incorrect proven fact that water-cooled is good, but in fact it isn’t. The air-cooled type accounts for a lot more than 90% of the small compressors in the home and abroad. That is since the air-cooled type is easy in design and no water source is necessary in use. There are four fatal shortcomings of water-cooled compressor: it will need to have a complete higher and lower water program with large investment; water-cooled cooler has brief life; it is simple to freeze the cylinder in wintertime in the north; it will waste a whole lot of water in regular operation.
After that consider the compressed air quality.
Generally, compressed air made by air compressor contains a certain quantity of lubricating oil and water. In some instances, it is prohibited from essential oil and water. At the moment, attention ought to be paid not only to selecting compressor, but also to the addition of auxiliary gadgets when necessary.
Lastly, it really is to expand the knowledge of reference.
1. Balance: With the strong rise of China’s overall economy and the constant emancipation of the minds 
of all kinds of manufacturers, manufacturers from coast to coast are busy with creation work. Along the way of production, air f
low compressors, which play an essential role, are often completely loaded and operate all-weather. In the entire production of factories, atmosphere compressor gas production is usually unstable, which is a very troublesome thing, often provides incalculable losses. Therefore, when we purchase atmosphere compressors, the 1st criterion is the stability of surroundings compressors. At present, some high-end brands both at home and abroad can meet this requirement. With the mature technology of adjustable frequency atmosphere compressor, it could be said to meet this requirement.
2. Gas creation: The second reason is gas production. Some enterprises have very high quality of gas. For instance, in the pharmaceutical market, basically the gas they need is oil-free of charge. In this regard, it is still predicated on the enterprise’s very own situation. If the enterprise includes a high demand for this, then it has been a long time to buy more well-known machines. If the demand isn’t high, it depends upon other circumstances. As the near future development tendency of the air compressor industry, the adjustable frequency air compressor is still very exceptional in gas production, since the variable frequency air flow compressor includes a prominent characteristic of tracking gas creation, and at exactly the same time the gas quality produced is very considerable.
3. Power consumption: That is a relatively important place as well as the focus of conversation, because air flow compressor, as a simple equipment, is generally managed all-weather, and air compressor itself is an extremely power-consuming equipment, the general manufacturer of atmosphere compressor power consumption accounts for 20-30% of the full total plant power usage. If effective control, the result is very obvious. Many domestic enterprises are actually pursuing the bottom price. In fact, underneath price is quite one-sided. For general production enterprises, the purchase price of air flow compressor only accounts for 5% of the total cost of surroundings compressor, 9% of the maintenance and labor costs, and 86% of the total cost of electricity. Therefore, considering the last expenditure, the frequency conversion air compressor must be much lower than the ordinary air flow compressor. Frequency conversion air flow compressor is only the first expenditure, but if you take the electricity price into account, you really can calculate a bill. Nowadays, the general energy-saving amount of regularity converter air compressor is very objective, and the domestic professional rate of recurrence converter atmosphere compressor, its power-saving rate is as high as 30%, usually within a calendar year can recover the difference. Therefore, whenever choosing air flow compressor, choosing an excellent variable frequency surroundings compressor is really the best alternative to the problem of power consumption.