First, we have to consider the exhaust pressure and the volume of the exhaust.
Based on the national regular, the exhaust pressure of general purpose air compressor is 0.7 MPa (7 atmospheric pressure) and the old standard is 0.8 MPa (8 atmospheric pressure). As the design operating pressure of pneumatic tools and wind machinery can be 0.4 Mpa, the functioning pressure of air flow compressor can fully meet up with the requirements. If the air compressor used by the user is larger than 0.8MPa, it must be specially manufactured. The method of forced pressurization can not be adopted in order to avoid accidents.
The size of the exhaust can be one of the main parameters of the air compressor. Choosing the air flow volume of the air flow compressor should match its own exhaust quantity and leave a 10% margin. If the air volume is large and the atmosphere compressor exhaust quantity is small, when the pneumatic tools begin, the exhaust pressure of the surroundings compressor will be significantly reduced, but the pneumatic tools can not be driven. Of course, it is also wrong to pursue large exhaust capacity blindly, since the larger the exhaust capacity, the larger the engine allocated by the air compressor, not only the higher the price, but also a waste of purchasing funds, and the usage of energy and energy will be wasted.
Consider the mixture of gas areas and conditions.
If the usage of air space is narrow, it should be Shaft Collar vertical; when there is a long-distance switch in the usage of air (more than 500 m), mobile type is highly recommended; if the usage of electricity can not be used, diesel engine driving type ought to be selected; when there is simply no circulating water in the use of occasions, air-cooled type should be selected. In the air-cooled and water-cooled cooling modes, many users have an incorrect idea that water-cooled is good, but in fact it is not. The air-cooled type accounts for more than 90% of the tiny compressors in the home and abroad. That is since the air-cooled type is easy in design and no water source is needed 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 expense; water-cooled cooler has short life; it is simple to freeze the cylinder in wintertime in the north; it’ll waste a whole lot of water in normal operation.
Then consider the compressed air quality.
Generally, compressed air made by air compressor contains a particular quantity of lubricating oil and water. In some instances, it really is prohibited from oil and water. At this time, attention should be paid not merely to the selection of compressor, but also to the addition of auxiliary devices when necessary.
Lastly, it is to expand the data of reference.
1. Balance: With the strong rise of China’s overall economy and the constant emancipation of the minds of all types of manufacturers, manufacturers from coast to coast are busy with production work. Along the way of production, atmosphere compressors, which play an essential role, are often completely loaded and operate all-weather. In the entire production of factories, atmosphere compressor gas production can be unstable, which is a very troublesome thing, often will bring incalculable losses. Therefore, whenever we purchase air compressors, the first criterion may be the stability of air compressors. At the moment, some high-end brands both at home and abroad can meet this necessity. With the mature technology of adjustable frequency atmosphere compressor, it can be thought to meet this requirement.
2. Gas creation: The second is gas creation. Some enterprises have very high quality of gas. For example, in the pharmaceutical industry, basically the gas they want is oil-free of charge. In this regard, it is still based on the enterprise’s own situation. If the enterprise has a high demand because of this, then it has been a long period to purchase more well-known machines. If the demand is not high, it depends on other situations. As the near future development development of the surroundings compressor industry, the adjustable frequency air compressor continues to be very superb in gas production, since the variable frequency air compressor has a prominent characteristic of tracking gas creation, and at the same time the gas quality created is very considerable.
3. Power consumption: That is a relatively important place and also the focus of conversation, because air compressor, as a simple equipment, is generally managed all-weather, and air compressor itself is an extremely power-consuming equipment, the overall manufacturer of air compressor power consumption accounts for 20-30% of the full total plant power intake. If effective control, the result is very obvious. Many domestic enterprises are actually pursuing the base price. In fact, the bottom price is quite one-sided. For general creation enterprises, the price of atmosphere compressor only makes up about 5% of the total cost of atmosphere compressor, 9% of the maintenance and labor costs, and 86% of the full total cost of power. Therefore, considering the final expenditure, the frequency conversion air compressor must be much lower compared to the ordinary air flow compressor. Frequency conversion air compressor is only the first expense, but invest the the electricity price into account, you can really calculate a bill. Nowadays, the general energy-saving amount of regularity converter atmosphere compressor is very objective, and the domestic professional frequency converter surroundings compressor, its power-saving rate is as high as 30%, usually within a yr can recover the difference. Therefore, when choosing surroundings compressor, choosing a good variable frequency air compressor is really the best answer to the issue of power consumption.