Large air separation FAQ

What are the configurations of the external compression process of the air separation unit

The correct operation method of air compressor: Air compressor is one of the main mechanical power equipment of many enterprises, so it is very necessary to keep the safe operation of air compressor. Strictly implementing the operation specification of the air compressor not only helps to prolong the service life of the air compressor, but also ensures the safety of the operators of the air compressor. Now let's learn about the operation specification of the air compressor. I. Before operating the air compressor, we should pay attention to the following problems: 1. Keep the lubricating oil in the oil tank within the scale range. Before the operation of the air compressor, check that the amount of oil in the oiling machine should not be lower than the scale value. 2. Check whether the moving parts are flexible, whether the connecting parts are fastened, whether the lubrication system is normal, and whether the motor and electrical control equipment are safe and reliable. 3. Before t...

I. The basic principle of membrane separation and oxygen generation the study of gas's mass transfer process in membrane has a history of more than 100 years. People have conducted a lot of studies on single gas's transmission in polymer and membrane, thus, it has gained better development in theory. However, the application of membrane in practice has been a matter of recent decades, and a more prominent example is the separation of isotopes from nuclear weapons. It was not until the late 1970s s that the permeability and selectivity of gas in polymer membrane had developed to be of industrial economic value that membrane was widely applied like today. Generally speaking, the membrane can permeate all the gas, but the extent of permeation is different. Gas penetrates through the hollow polymer membrane, which is a complex process. Its penetration mechanism is generally that gas molecules are first absorbed on the surface of the membrane to dissolve, and then spread in the membrane,...

1 The condensing evaporator connected with the upper and lower towers arranges multiple plate units in a single layer, or adds auxiliary condensing evaporator to the tower. This kind of layout is the most conventional one, which is convenient to install, simple to arrange the pipeline, and also saves more space. 2 separately arranged condensing evaporator place multiple plate units in a cylindrical container in parallel, and connect them with upper and lower towers by pipes, which is a separately arranged condensing evaporator. This kind of structural form condensing evaporator is separated from the upper and lower towers, which is not limited by cross section, but increases equipment investment cost and pipeline configuration. 3 Multi-layer or double-layer condensing evaporator arrange multiple Plate-fin Heat Exchanger (main cooling unit) according to the upper and lower layers, and arrange them between the upper and lower towers, make the limited section layout as large as possibl...

Classification of process form of air separation unit: what are the configurations of internal pressure process

What are the characteristics of the air separation unit supporting the domestic iron and steel industry

What are the development status and characteristics of precooling system of air separation unit

How to control rectification in normal operation of air separation unit

What are the technical difficulties in the lower tower of the distillation system of air separation plant

Why does the flow rate of fluid affect the kinetic adsorption capacity of molecular sieves

In use to avoid making the instrument one-way force, especially when driving and parking to pay attention to. When driving, you should first close the high and low pressure valves, then open the equalization valve, and then slowly open the high (or low) pressure valve, so that the measured medium enters the positive (negative) pressure chamber of the transmitter. If the liquid is measured, the gas in the positive (negative) pressure chamber should be discharged from the upper exhaust screw hole;...