First, Guangzhou Qida oxygen generator working principle
Oxygen as a rich gas in the air, inexhaustible, inexhaustible. It is colorless, tasteless, transparent and life-sustaining. Oxygen (O2) in the air content of 20.9476% (the volume of various gases in the air component: N2: 78.084%, O2: 20.9476%, argon: 0.9364%, CO2: 0.0314%, and other H2, CH4, N2O, O3, SO2, NO2, etc., but the content of a very small amount), molecular weight is 32, boiling point: - 183℃.
1, for different industries and different users of different requirements for the use of oxygen, Guangzhou Qida company to provide personalized, specialized oxygen equipment, to fully meet the requirements of different users of the gas PSA pressure adsorption oxygen system is the use of pressure adsorption technology using a special adsorbent at room temperature in the air oxygen enrichment out of the site gas supply equipment.
2. "QD series" pressure-variable adsorption oxygen system provided by Guangzhou Qida Company is a new type of high-tech equipment, which has the advantages of low equipment cost, small volume, light weight, simple operation, easy maintenance, small operation cost, quick on-site production of oxygen, convenient switching and no pollution, etc. It can supply oxygen by connecting to the power supply, and can be used to supply oxygen at site. Connected to the power supply can supply oxygen, can be widely used in factory aquaculture, can also be used in petrochemical industry, electric furnace steelmaking, glass production, papermaking, ozone production, aerospace, health care and other industries and fields, the equipment runs stably, safely and reliably, favored by the majority of users. Our company are equipped with specialized applied research team in the field of gases, a wide range of products, in addition to involving industrial gases and devices, its edge products and services to obtain a larger market share.
3, Variable Pressure Adsorption Oxygen Concentrator is an automated equipment which takes molecular sieve as adsorbent, utilizes the principle of adsorption under pressure, desorption under reduced pressure to adsorb and release oxygen from the air, and thus separates the oxygen. Molecular sieve is a kind of spherical granular adsorbent whose surface and interior are covered with micropores after special pore treatment process, which is white in color. Its pore-type characteristics enable it to realize the kinetic separation of oxygen and nitrogen. The separation of O2 and N2 by molecular sieve is based on the small difference in the kinetic diameter of these two gases, N2 molecules have a faster diffusion rate in the micropores of molecular sieve, and O2 molecules diffuse at a slower rate. The diffusion of water and CO2 in compressed air is not much different from that of nitrogen. Ultimately, it is the oxygen molecules that are enriched from the adsorption tower.
4, application areas: large-scale factory aquaculture oxygen, oxygen, dissolved oxygen, supporting the use of large ozone machine for the breeding pool disinfection, sterilization, de-algae and so on. Can also be used for:
(1) electric furnace steelmaking: decarburization, oxygen combustion heating, foam slag, metallurgical control and post-heating.
(2) Wastewater treatment: activated sludge oxygen aeration, pool oxygenation and ozone sterilization.
(3) Glass melting: Oxygen combustion and solubilization, cutting, increasing glass production and extending furnace life.
(4) Pulp bleaching and papermaking: chlorine bleaching is converted to oxygen-enriched bleaching, providing cheap oxygen.
(5) Sewage treatment. Non-ferrous metal smelting: smelting steel, zinc, nickel, lead, etc. need to use oxygen-enriched, PSA method is gradually replacing the deep cooling method.
(6) field cutting construction: field steel pipe, steel plate cutting with oxygen-enriched, mobile or small oxygen generator can meet the requirements.
(7) petrochemical and chemical oxygen: petroleum and chemical process of oxygen reaction using oxygen-rich instead of air for oxidation reaction, can improve the reaction speed and chemical product yield.
(8) Ore treatment: Used in the production process of gold, etc., it can improve the extraction rate of precious metals.
(9) Fermentation: Oxygen-enriched instead of air to supply oxygen for aerobic fermentation, which can greatly improve the efficiency.
(10) Drinking water: Provide oxygen to the ozone generator, oxygen sterilization.
5, process:
(1) left suction: air compressed by the air compressor, after dust removal, oil removal, drying, into the air storage tank, through the air inlet valve, the left inlet valve into the left adsorption tower, tower pressure rises, the nitrogen molecules in the compressed air is adsorbed by the zeolite molecular sieve, not adsorbed oxygen through the adsorbent bed, through the left gas production valve, the oxygen production valve into the oxygen storage tank. This process is called "left suction". The duration is tens of seconds.
(2) pressure equalization: after the end of the left suction process, the left adsorption tower and the right adsorption tower through the equalization valve connection, so that the two towers to equalize the pressure, this process is called "equalization of pressure", the duration of 3 ~ 5 seconds. (3) right suction: after the end of equalization, the compressed air through the air inlet valve, the right inlet valve into the right adsorption tower, compressed air nitrogen molecules adsorbed by the zeolite molecular sieve, enriched oxygen through the right gas valve, oxygen production valve into the oxygen tank, this process is called the "right suction", the duration of tens of seconds.
(4) desorption: synchronized with the right suction, the left adsorption tower in the zeolite molecular sieve adsorption of oxygen through the left exhaust valve decompression release back to the atmosphere, this process is called "desorption". Conversely, the left tower adsorption of the right tower at the same time also in the desorption. (5) blowback: in order to make the molecular sieve in the buck released nitrogen completely discharged into the atmosphere, oxygen through a normally open blowback valve blowing desorption of the adsorption tower, the tower of nitrogen blown out of the adsorption tower. This process is called "blowback" and it occurs simultaneously with desorption.
After the end of the right suction, it enters the equalization process, and then switches to the left suction process, and the cycle continues, so as to continuously produce high-purity oxygen.
Second, Guangzhou Qida oxygen generator related parameters
1, Introduction
Molecular sieve oxygen generator belongs to a form of physical oxygen generator, compared with the chemical oxygen method has the advantages of simple structure, compact structure, only need electricity without other energy sources, and no air pollution. Molecular sieve oxygen concentrator adopts the principle of variable pressure adsorption, through the selective adsorption of molecular sieve, the nitrogen in the air will be filtered out, so as to form a kind of oxygen concentrator way of oxygen enrichment. Pressure-variable adsorption is abbreviated as PSA.
As shown in the above figure, the high-pressure and high-temperature air produced by the oil-free compressor is sent to the condenser to be cooled, and the cooled low-temperature air is connected to the change valve, and the change valve connects the air to the molecular sieve drum A at a certain moment under the control system, due to the selective adsorption property of the molecular sieve, the nitrogen is filtered out and the oxygen passes through, and then the oxygen is collected in the Oxygen-enriched drum and thus excluded from the machine. With the passage of time, the nitrogen in the molecular sieve tank A will be more and more, and the amount of oxygen produced will slowly become less and less, so the control system will switch the air through the change valve after a certain period of time in the molecular sieve bucket B, and the oxygen will be produced by the bucket B. At the same time, use part of the oxygen produced by the B bucket to desorb the A tank, so that the nitrogen in the A bucket is excluded from the machine through the action of the air exchange valve, and then the A bucket regained the ability to produce oxygen, so that the two molecular sieve buckets of AB and AB work alternately to complete the enrichment of oxygen to achieve a high concentration of oxygen production.
2, flow chart
4, use:
(1) Oxygen supply for the ozone generator, oxygen supply for the equipment that needs oxygen, or oxygenation.
(2) In the environmental humidity of the water treatment places such as pure water, mineral water production line, large aquatic farms and other environments.
Accessories: A, other small oxygen generator (3L-15L); B, 20L-30L oxygen generator, the pictures are as follows:
Manufacturer: Guangzhou Qida Ozone Equipment Technology Co.