Nitrogen generator，refers to the use of air as raw material, the use of physical methods to separate oxygen and nitrogen to obtain nitrogen equipment. According to the different classification methods, namely cryogenic air separation, molecular sieve air separation (PSA) and membrane air separation, the industrial application of nitrogen machine, can be divided into three kinds.
Nitrogen making machine is designed and manufactured according to pressure swing adsorption technology. Nitrogen making machine with high quality imported carbon molecular sieve (CMS) as adsorbent, using pressure change adsorption principle (PSA) at room temperature air separation to produce high purity nitrogen. Usually, two adsorption towers are used in parallel, and the imported pneumatic valve is controlled by the imported PLC to operate automatically. Alternately, pressure adsorption and decompression regeneration are carried out to complete the separation of nitrogen and oxygen and obtain the required high purity nitrogen.
Working Principle
Principle of PSA nitrogen production
Carbon molecular sieve can simultaneously adsorb oxygen and nitrogen in the air, and its adsorption capacity also increases with the increase of pressure, and there is no obvious difference in the equilibrium adsorption capacity of oxygen and nitrogen under the same pressure. Therefore, it is difficult to achieve effective separation of oxygen and nitrogen only by pressure changes. If the adsorption velocity is further considered, the adsorption properties of oxygen and nitrogen can be effectively distinguished. The diameter of oxygen molecules is smaller than that of nitrogen molecules, so the diffusion speed is hundreds of times faster than that of nitrogen, so the speed of carbon molecular sieve adsorption of oxygen is also very fast, adsorption about 1 minute to reach more than 90%; At this point, nitrogen adsorption is only about 5%, so it's mostly oxygen, and the rest is mostly nitrogen. In this way, if the adsorption time is controlled within 1 minute, oxygen and nitrogen can be initially separated, that is to say, adsorption and desorption is achieved by pressure difference, pressure increases when adsorption, pressure drops when desorption. The difference between oxygen and nitrogen is realized by controlling the adsorption time, which is very short. Oxygen has been fully adsorbed, while nitrogen has not had time to adsorb, so it stops the adsorption process. Therefore, pressure swing adsorption nitrogen production to have pressure changes, but also to control the time within 1 minute.
Equipment Features
(1) Nitrogen production is convenient and fast:
Advanced technology and unique air distribution device make the air distribution more uniform, efficient use of carbon molecular sieve, qualified nitrogen can be provided in about 20 minutes.
(2) Easy to use:
The equipment is compact in structure, integral skid-mounted, covers a small area without capital construction investment, less investment, the site only need to connect the power supply can make nitrogen.
(3) More economical than other nitrogen supply methods:
PSA process is a simple method of nitrogen production, using air as raw material, energy consumption is only the electric energy consumed by air compressor, has the advantages of low operating cost, low energy consumption and high efficiency.
(4) Mechatronics design to achieve automatic operation:
Imported PLC control automatic operation, nitrogen flow pressure purity adjustable and continuous display, can realize unattended.
(5) Wide range of application:
Metal heat treatment process of shielding gas, chemical industry to produce gas and nitrogen purification of all kinds of storage tank, pipe, rubber, plastic products production gas, exhaust oxygen packaging for food industry, beverage industry purification and cover gas, pharmaceutical industry nitrogen-filled packaging and container filling nitrogen oxygen, electronic components and semiconductor electronics industry production process of shielding gas, etc. The purity, flow rate and pressure can be adjusted stably to meet the needs of different customers.
Technical indicators:
Traffic: 5-1000 nm3 / h
Purity: 95% 99.9995%
Dew point: to 40 ℃ or less
Pressure :≤ 0.8mpa adjustable
System USES
Special nitrogen machine for oil and gas industry is suitable for continental oil and gas exploitation, coastal and deep sea oil and gas exploitation of nitrogen protection, transportation, covering, replacement, emergency rescue, maintenance, nitrogen injection oil recovery and other fields. It has the characteristics of high safety, strong adaptability and continuous production.
Chemical industry special nitrogen machine is suitable for petrochemical industry, coal chemical industry, salt chemical industry, natural gas chemical industry, fine chemical industry, new materials and their derivatives chemical products processing industry, nitrogen is mainly used for covering, purging, replacement, cleaning, pressure transport, chemical reaction agitation, chemical fiber production protection, nitrogen filling protection and other fields.
Special nitrogen making machine for metallurgy industry is suitable for heat treatment, bright annealing, protective heating, powder metallurgy, copper and aluminum processing, magnetic material sintering, precious metal processing, bearing production and other fields. It has the characteristics of high purity, continuous production, and some processes require nitrogen to contain a certain amount of hydrogen to increase brightness.
The special nitrogen making machine for coal mine industry is suitable for fire fighting, gas and gas dilution in coal mining. It has three specifications: ground fixed, ground mobile and underground mobile, which fully meet the requirements of nitrogen under different working conditions.
Rubber tire industry special nitrogen machine is suitable for rubber and tire vulcanization process of nitrogen protection, molding and other fields. Especially in the production of all-steel radial tire, the new process of nitrogen vulcanization has gradually replaced the steam vulcanization process. It has the characteristics of high purity, continuous production and higher nitrogen pressure.
Special nitrogen making machine for food industry is suitable for green storage of grain, food nitrogen packing, vegetable preservation, wine sealing (can) and preservation, etc
Explosion-proof nitrogen making machine is suitable for chemical industry, oil and gas and other places where the equipment has explosion-proof requirements.
harmaceutical industry special nitrogen machine is mainly used in drug production, storage, packaging, packaging and other fields.
Nitrogen making machine for electronic industry is suitable for semiconductor production and packaging, electronic components production, LED, LCD liquid crystal display, lithium battery production and other fields. Nitrogen making machine has the characteristics of high purity, small volume, low noise and low energy consumption.
Container nitrogen making machine is suitable for petroleum, natural gas, chemical industry and other related fields, that is, it has the characteristics of strong adaptability and mobile operation.Vehicle mobile nitrogen making vehicle is suitable for oil and gas industry mining, pipeline blowing, replacement, emergency rescue, flammable gas, liquid dilution and other fields, divided into low pressure, medium pressure, high pressure series, with strong mobility, mobile operation and other characteristics.
Auto tire nitrogen nitrogen machine, mainly used in auto 4S shop, auto repair shop auto tire nitrogen, can prolong the service life of tires, reduce noise and fuel consumption.
