What is the most advanced type of air compressor equipment available today?

Our company uses Atlas; there are domestic brands from Shanghai, I can’t remember what the brand name is, haha

Type? Of course it’s centrifugal. As for which brands are good, that’s another matter; we use brands such as Atlas and Fusheng Yilida. Imported equipment is expensive and delicate (it has strict requirements regarding the process media, as well as water and air in the auxiliary systems; otherwise problems arise), giving the impression that it isn’t suitable for local conditions! But it has good quality and reliable operation. Domestically produced ones are relatively cheaper and more durable, but their quality is average and their reliability is low.

OP, what scale of compressor are you referring to? For large compressors (with a gas handling capacity of over 10,000 cubic meters per hour), a multi-axis centrifugal type is the best choice, as it not only has a long operational life but also high efficiency. As for the manufacturer: German products are the best choice.

If the poster wants to choose a suitable air compressor, they should first inform everyone about the application scenario, operating requirements, pressure and flow rates, as well as the importance of it for the manufacturing process; this way, people can provide more targeted suggestions! The air compressors we use include multi-axis centrifugal, screw, reciprocating, axial flow, and other types. Reputable manufacturers such as Siemens, MANTURBO, Atlas, Elliott, Delaisi, KOCH, Ingersoll Rand, Liuzhou Air Compressors, Kaifeng Air Compressors, Shaanxi Blower, Shenyang Blower, and Kaifeng Air Compressors are all quite good.

It is better to use a screw-type air compressor, as it results in less oil content in the gas

Generally, those with a flow rate of less than 80 cubic meters per minute can opt for screw type pumps. There are countless manufacturers, and basically any of them will work. There are both domestic and imported ones. Today, pistons are mainly used in special gas and pressure-related processes. Centrifugal compressors, high flow rate. Domestic brands: Shaanxi Gas Turbine and Shenyang Gas Turbine

For air compressors, our company uses screw-type compressors from Quincy in the United States; they produce little noise, deliver air of high quality, and are free from oil contamination. The machine has been in operation for over three years and is quite stable. It’s just necessary that after-sales service keeps up, with timely replacement of air filters and engine oil, etc. Maintenance is essential.

For small air compressors where the oil content in the gas is not a major concern, screw compressors are sufficient; they are cheaper, but require more maintenance； If oil-free operation is required, a centrifugal compressor can be used. Domestic ones are of lower quality, while imported ones are more expensive but more reliable. Large and medium-sized compressors can generally be met domestically; they have slightly higher energy consumption and lower reliability, but Shengyu, Shaanxi Gas Turbine, and Hangzhou Oxygen are all good options. Piston compressors are unclear.

Different types of air compressors have their specific application conditions and their own theoretical foundations. The theory behind air compressors is well-established; a factory that does its job well produces high-quality products.

For small air compressors used at sea, Ingersoll Rand is the preferred brand.

Screw-type ones are better; our company uses Sulzer from the United States

Air compressors generally include screw, piston, vane, and other types of air compressors. Screw compressors contain less lubricating oil in the compressed air compared to piston compressors, and there are different requirements regarding the oil and water content in the compressed air, as well as different levels of drying and filtration. It is best to choose an appropriate pressure; the higher the pressure, the greater the power consumption.

What the people upstairs mentioned are basically small and medium-sized air compressor units. With the increasing use of larger-scale installations, taking air separation units as an example, many of their air compressor units now have a capacity of over 40,000 units. The required air delivery volume for these compressors is generally around 210,000 to 240,000 units, which makes the choice of compressor manufacturer quite important. In my opinion, among domestic manufacturers, for large-scale air compressors, one can generally choose either Shenzi or Shanxi brands. Shenzi’s compressors are conventional centrifugal compressors with an external intercooler and two cylinders; Shanxi’s compressors utilize Sulzer technology and are isothermal centrifugal compressors with an internal intercooler. In terms of efficiency, those with internal coolers are more efficient than those with external coolers. When it comes to turbines, Hangzhou Turbine is the preferred choice in China. Among foreign manufacturers, Mannesmann, Siemens, and Atlas are commonly used in China. Mannesmann’s compressors are similar to those from Shanxi brand, being isothermal centrifugal compressors as well. Siemens and Atlas use multi-axis centrifugal compressors, which consume about 8% less energy compared to isothermal centrifugal compressors. I hope everyone will keep exchanging ideas!!:handshake

Air compressors come in various types such as multi-axis centrifugal, screw, reciprocating, and axial flow types; there are small screw compressors as well as large centrifugal compressors

Specific process requirements must be defined in order to narrow down the range of options and enable comparison. When it comes to air compressors, a choice can be made based on the reputation of the manufacturer; brands such as Atlas, Ingersoll Rand, Suzlon, and Fusheng are all high-quality options.

Compair’s air compressors are good; we’re using them.

Without knowing the intended use, as well as requirements regarding displacement, pressure, etc., it is difficult to make a judgment; generally, W-type, piston-type (single-stroke), or screw-type systems are used for smaller applications, while L-type piston systems are chosen for larger ones.

Air compressors are divided into positive-displacement and turbine types; for small to medium-sized applications, piston and screw types are widely used. For processes that are important and require continuous, stable operation throughout the year, turbine types are of course the better choice. Centrifugal fans are suitable for medium and low flow rates and medium to high pressure ratios, while axial flow fans are suitable for high flow rates and medium to low pressure ratios. Centrifuges can also be divided into multi-axis fully assembled types and single-axis double-support types. Their design life can reach 20 years, meeting the technical requirement of continuous operation for three years. Domestic axial flow manufacturers include Shaanxi Gas Turbine, Shenyang Gas Turbine, Chengfa, and Harbin Automobile Engine, etc. Domestic centrifugal single-axis manufacturers include Shenyang Gas Turbine, Shaanxi Gas Turbine, Hangzhou Oxygen, Kaifeng Air Separation, etc. The main domestic manufacturer of assembled units is Shenyang Gas Turbine. I won’t mention those from abroad; there are many. Looking at the current trends in air compressors, multi-axis, fully assembled centrifugal compressors represent the best development direction for mid-to-high-end products.