A, how much does an air pump air compressor cost
The price of an air pump air compressor on the market varies from a few hundred dollars to a few tens of millions of dollars, and even if the air pump air compressor equipment uses the same materials and hosts, there is a big difference in the price, this is due to the different Air compressor manufacturers have different host technical parameters. The same brand of air compressor, model, power size is different, the resulting price will also be different. The quotation of the air compressor is mainly based on the parameter requirements of the factory enterprise for the air compressor. Selection is based on the power of the air compressor, pressure, exhaust volume, where it is applied, air quality requirements, energy-saving performance requirements and so on.
Two, air pump air compressor how to choose
We in the selection of air compressor actually have to pay attention to some of the principles, so that we can compare the selection of more suitable for our own, the following together with the selection of air pump air compressor attention to matters:
1, to consider the air pump air compressor operating
Air compressor is a kind of pressurized work of the machine, the work is accompanied by temperature rise and pressure, the safety of its operation should be put in the first place. The state of the production of compressors to implement the standardization of the "two certificates" system, that is, the compressor production license and pressure vessel production license (storage tank). Therefore, in the purchase of compressor products, to strictly review the "two certificates". Usually licensed manufacturers of product quality assurance system is perfect, there will be no major quality problems, even if there are some problems, but also by the manufacturer is responsible for the three packages.
2, to consider the use of gas occasions and conditions
such as the use of gas site is narrow (marine, automotive), should be selected vertical; such as the use of gas occasions have a long-distance change (more than 500 meters), should be considered mobile; if the use of occasions can not be supplied with electricity, should be the choice of diesel-driven; if the use of occasions do not have running water, you have to Select air-cooled type.
In the air-cooled, water-cooled two cooling methods, users often have the wrong understanding that water-cooled is good, in fact, it is not. Domestic and foreign small air pumps in the air-cooled type accounted for more than 90%, this is because the design of air-cooled easy to use without water. Water-cooled air pumps have four fatal shortcomings: there must be a complete water and sewage system, large investment; water-cooled cooler life is short; in the northern winter is also easy to freeze the cylinder; in normal operation will waste a lot of water.
3, to consider the quality of compressed air
General air pump compressor generated compressed air contain a certain amount of lubricant, and a certain amount of water, but some occasions are prohibited oil and water, which is not only on the compressor selection should be noted that, if necessary, to increase the ancillary equipment.
The solution: First, the selection of non-lubricated air pump air compressor. This cylinder basically does not contain oil, its piston ring and packing is generally PTFE. But this machine also has the disadvantage of poor lubrication, high failure rate; PTFE is also a hazardous substance, food, pharmaceutical industry can not be used; non-lubricated compressor can only be done to transport gas does not contain oil, can not do not contain water. The second method is also commonly used, is the air compressor (no matter what kind) and then add a first or second class purification device or dryer. This device can make the compressor air both oil-free and water-free, so that the compressed air containing oil and water in the compressed air below 5ppm, can meet the process requirements.
4, should consider the exhaust pressure and the size of the exhaust volume
General purpose aerodynamic compressor exhaust pressure of 0.7MPa, the old standard of 0.8MPa. At present, there is a society of the exhaust pressure of 0.5MPa air compressor, from the use of the point of view is unreasonable, because of the wind tools, its Pressure margin is too small, the gas distance a little farther can not be used. In addition, from the design point of view, this compressor is designed for one-stage compression, the pressure ratio is too large, easy to cause the exhaust temperature is too high, resulting in cylinder carbon, leading to accidents. If the compressor used by the user is greater than 0.8MPa, generally have to be specially manufactured, can not take the approach of forced pressurization, so as not to cause accidents.
Exhaust volume is one of the main parameters of the air pump air compressor, choose the air pump air compressor to match the required exhaust volume, and leave a margin of 10%. If the amount of gas and air compressor exhaust volume is small, wind-driven tools, will cause the air pump air compressor exhaust pressure is greatly reduced, and can not drive the wind-driven tools. Of course, the blind pursuit of large exhaust volume is also wrong, because the larger the exhaust volume of the compressor with the larger the motor, not only the high price, but also a waste of funds for the purchase, the use of electricity will also be a waste of energy.