Industrial oxygen production equipment, as the name implies, is equipment used in industrial production to produce oxygen.
So what is the method of industrial oxygen production?
Generally we commonly use the method of making oxygen by decomposing hydrogen peroxide or potassium permanganate in the laboratory, which has the characteristics of fast reaction, easy operation and convenient collection of industrial oxygen making machine, but the cost is high and cannot be produced in large quantities, so it can only be used in the laboratory. The industrial production needs to consider whether the raw material oxygen generator what brand is easy to obtain, whether the price is cheap, whether the cost is low, whether it can be produced in large quantities and the impact on the environment.
The following explains the specific methods of industrial oxygen production.
1. Air freezing separation method
The main components of air are oxygen and nitrogen. The use of oxygen and nitrogen boiling point is different, the preparation of oxygen from the air is called air separation method. First of all, the air pre-cooling, purification (to remove a small amount of moisture, carbon dioxide, acetylene, hydrocarbons and other gases and dust and other impurities in the air), and then compressed, cooled, so that the top ten brands of oxygen generators into liquid air.
Then, using the difference between the boiling points of oxygen and nitrogen, the liquid air is evaporated and condensed several times in the distillation tower to separate the oxygen and nitrogen. If you add some additional devices, you can also extract argon, neon, helium, krypton, xenon and other rare inert gases that contain very little in the air. The oxygen produced by the air separation device is compressed by the compressor, and finally the compressed oxygen is loaded into high pressure cylinders for storage, or directly transported to factories and workshops through pipelines.
2. Molecular sieve oxygen production method (adsorption method)
Using the characteristics of nitrogen molecules larger than oxygen molecules, the oxygen in the air is separated out using a specially designed molecular sieve. First, the compressor forces the dry air through the molecular sieve into the vacuum adsorber, the nitrogen molecules in the air is adsorbed by the molecular sieve, oxygen into the adsorber, when the oxygen in the adsorber reaches a certain amount (pressure reaches a certain level), you can open the oxygen valve to release the oxygen.
After a period of time, the nitrogen adsorbed by the molecular sieve gradually increases, the adsorption capacity weakens, and the purity of the output oxygen decreases, so the nitrogen adsorbed on the molecular sieve needs to be pumped out by vacuum pump, and then repeat the above process. This method of oxygen production is also called adsorption method.
Post time: Dec-30-2021