How many types of oxygen generators are there?

Oxygen generator is also called air separation equipment (referred to as air separation equipment), it has many different types, according to different classification methods, there are many different types. According to the different purity of the product, it can be divided into the device that produces high purity oxygen with oxygen purity above 99.2%; the device that produces low purity oxygen (also called process oxygen) with oxygen purity around 95%; the device that produces enriched oxygen with purity below 35% (also called liquefied air). According to the different types of products, can be divided into pure production of high purity oxygen single high product device; at the same time the production of high purity oxygen and high purity nitrogen double high product device; incidental extraction of rare gases to extract argon device or full extraction device. According to the form of the product, can be divided into the production of gaseous products device; the production of liquid products device and the simultaneous production of gas, liquid products device. According to the different quantities of products, it can be divided into small devices below 800m3/h; medium-sized devices from 1000 to 6000m3/h; large devices above 10000m3/h. According to the different separation methods, it can be divided into low-temperature distillation; molecular sieve adsorption and membrane permeation. According to the working pressure is high and low, can be divided into pressure in 10.0 ~ 20.OMPa high-pressure devices; working pressure of 1.0 ~ 5.0MPa medium-pressure devices; pressure of 0.5 ~ 0.6MPa full low-pressure devices. The classification method is artificial, there can be other classification methods.