Heat Treatment Industry Nitrogen Generator High-purity Industrial Nitrogen Production Equipment
Product Description
During the heat treatment process, many products will oxidize due to high temperatures. At this time, it is necessary to create an oxidation-free environment, and inert gas nitrogen is introduced into the heat treatment furnace to prevent oxidation and discoloration of the workpiece.
Nitrogen is widely used in mesh belt furnaces, pit furnaces, bell furnaces, and many products will oxidize due to high temperature during heat treatment. At this time, it is necessary to create an oxidation-free environment, and inert gas nitrogen is introduced into the heat treatment furnace to prevent oxidation and discoloration of the workpiece.
Nitrogen is widely used in non-oxidation annealing of mesh belt furnaces, pit furnaces, bell furnaces, spheroidizing furnaces, multi-purpose furnaces, etc.
Pressure swing adsorption (PSA) is a new type of gas adsorption separation technology, which uses the different characteristics of oxygen and nitrogen molecules in the air (nitrogen is large and oxygen is small), when the compressed air enters the adsorption tower, the oxygen molecules directly enter the micropores on the surface of the carbon molecular sieve and are adsorbed, and the nitrogen molecules cannot enter the micropores and are enriched in the adsorption tower to achieve the purpose of air separation.
At the same time, the oxygen adsorption capacity of carbon molecular sieves increases due to the increase of environmental pressure, and decreases due to the decrease of pressure. The process of separating air by adsorbing oxygen molecules under pressure and desorbing oxygen molecules by reducing pressure is called PSA nitrogen production.
Process flow chart of pressure swing adsorption nitrogen production device
Application of nitrogen generator in heat treatment industry
The heat treatment processing mainly includes bright quenching, bright annealing, bright tempering, continuous casting, continuous rolling, and steel strip; Aluminum strip, aluminum thin rolling, etc. protect the heating and prevent the oxidation and decarburization of the product. The application of nitrogen generator in heat treatment processing has the following aspects:
1. Vacuum heat treatment: when nitrogen is used as a cooling medium for nitrogen-filled pressurized oil quenching, the nitrogen pressure of the nitrogen generator is adjusted to improve the hardenability of the steel parts and protect the electric heating element of the vacuum furnace;
2. Controllable atmosphere: nitrogen as dilution gas, can reduce the consumption of raw gas and reduce the formation of carbon black;
3. Carburizing and nitriding: The nitrogen produced by the nitrogen generator can be used for anti-oxidation cooling after carburizing, reducing the degree of internal oxidation of steel parts, and improving the decomposition rate of furnace gas and the fatigue strength and breaking resistance of parts;
4. Protective gas and safety gas: blowing and exhausting in the furnace, and sealing the air curtain of the furnace door; When the gas and power are cut off, the nitrogen produced by the nitrogen generator can be sent into the furnace to prevent the furnace gas from exploding.
Video
Product Specifications
Nitrogen output
1~5000Nm3/hr
Nitrogen purity
98%~99.999%
Nitrogen pressure
0.6~0.9Mpa
Nitrogen dew point
-40°C~ -60°C
Details
The energy-saving carbon molecular sieve nitrogen generator adopts an unequal pressure equalization process, while the traditional carbon molecular sieve nitrogen generator adopts an equal pressure equalization process. The benefits of pressure equalization are twofold: one is to reduce the impact of gas on the molecular sieve, and the other is to improve the utilization rate of compressed air.
We have improved the equalization position by using an unequal equalization process. During pressure equalization, the pressure equalization gas is led from the middle of the adsorption tower at the end of adsorption to the bottom of the adsorption tower at the end of desorption, and the mixed gas with high nitrogen purity in the middle of the adsorption tower is recovered to the desorption tower through the unequal pressure equalization structure, so as to improve the nitrogen concentration of the raw gas in the desorption tower, reduce the consumption of compressed air by the carbon molecular sieve in the desorption tower, improve the nitrogen production rate of the carbon molecular sieve, and achieve the effect of energy saving.
The performance of the dynamic adsorption capacity and separation coefficient of high-efficiency nitrogen production carbon molecular sieve determines the quality of nitrogen generator.
Range of applications for nitrogen (N2)
98-99.9% nitrogen purity application industry
Chemical & Chemical: (95%-99.5%) Raw material storage, material (liquid, powder, etc.) transportation;Chemical reaction, explosion-proof, anti-oxidation, etc.
Food Packaging: (95%-99.9%) raw material storage, material transportation;Food, vegetables and fruits are preserved.
99.9%-99.999% nitrogen purity application industry
Lithium battery industry: (99.99%~99.999%) Including electrolyte, lithium battery crushing, lithium battery semi-finished products, nitrogen is required in the relevant production process as anti-oxidation, explosion-proof, and in the oxygen-free atmosphere environment to produce, it should be noted that the lithium battery industry has high requirements for nitrogen dew point, generally required at the pressure dew point -45 °C ~ -70 °C.
SMT Reflow Machine:(99.9%~99.99%) It can be used to prevent blackening and bubbles during soldering, reduce lead pollution in the soldering process, and enhance the quality of soldering. The electronics industry is widely used: such as electronic component packaging, LED patch, wire bonder, laser printing technology and so on.
Metal Smelting & Purification: (99.99%) After aluminum, copper and steel are melted at high temperatures, in order to obtain high-quality materials, some nitrogen will be instantaneously introduced to prevent the metal from being doped with other impurities during the cooling process and affecting the metal properties.
≥ 99.999% nitrogen purity application industry
Ultra-fine copper wire: (99.999% and above) Oxidation protection during high-temperature wire drawing.
Laser cutting: (99.9~99.99%) The laser cutting industry uses nitrogen to assist in processing steel plates, and the cutting effect is smooth and burr-free, and there is no oxidation and blackening. It should be noted that the laser cutting industry generally uses nitrogen pressure of 12 bar-16 bar, and a rear pressurization device is required.
Hazardous gases, hazardous liquids, flammable and explosive products in the chemical industry, special nitrogen generator for purging: generally use nitrogen purity between 98%-99.9%, generally intermittent use, pressure requirements are generally: 0.8Mpa below, and the flow requirements are not very large. Commonly used flow rates are: 50Nm3/h; 80 Nm3/h； 100 Nm3/h； 150 Nm3/h； 200 Nm3/h, the special nitrogen generator for the chemical industry produced by our company, with a purity of 99.5%-99.9%, is the most suitable for customers to use and meet customer requirements.
The chemical industry uses nitrogen as a raw material for chemical reactions: nitrogen is required to be of high purity, generally 99.99% purity.
PSA nitrogen generator uses air as raw material, carbon molecular sieve as adsorbent, uses the principle of pressure swing adsorption, and uses the method of selective adsorption of oxygen and nitrogen by carbon molecular sieve to separate nitrogen and oxygen, and produces nitrogen automatic equipment.
The carbon molecular sieve is based on the slight difference between the kinetic diameter of O2 and N2 to achieve the separation of nitrogen and oxygen, and the kinetic diameter of the oxygen molecule is small, so there is a faster diffusion rate in the micropores of the carbon molecular sieve. The kinetic diameter of the nitrogen molecule is larger, so the diffusion rate is slower, and the final enrichment from the adsorption column is high-purity nitrogen.
PSA nitrogen generator uses air as raw material, carbon molecular sieve as adsorbent, uses the principle of pressure swing adsorption, and uses the method of selective adsorption of oxygen and nitrogen by carbon molecular sieve to separate nitrogen and oxygen, and produces nitrogen automatic equipment.
The carbon molecular sieve is based on the slight difference between the kinetic diameter of O2 and N2 to achieve the separation of nitrogen and oxygen, and the kinetic diameter of the oxygen molecule is small, so there is a faster diffusion rate in the micropores of the carbon molecular sieve. The kinetic diameter of the nitrogen molecule is larger, so the diffusion rate is slower, and the final enrichment from the adsorption column is high-purity nitrogen.
Hazardous gases, hazardous liquids, flammable and explosive products in the chemical industry, special nitrogen generator for purging: generally use nitrogen purity between 98%-99.9%, generally intermittent use, pressure requirements are generally: 0.8Mpa below, and the flow requirements are not very large. Commonly used flow rates are: 50Nm3/h; 80 Nm3/h； 100 Nm3/h； 150 Nm3/h； 200 Nm3/h, the special nitrogen generator for the chemical industry produced by our company, with a purity of 99.5%-99.9%, is the most suitable for customers to use and meet customer requirements.
The chemical industry uses nitrogen as a raw material for chemical reactions: nitrogen is required to be of high purity, generally 99.99% purity.
PSA nitrogen generator uses air as raw material, carbon molecular sieve as adsorbent, uses the principle of pressure swing adsorption, and uses the method of selective adsorption of oxygen and nitrogen by carbon molecular sieve to separate nitrogen and oxygen, and produces nitrogen automatic equipment.
The carbon molecular sieve is based on the slight difference between the kinetic diameter of O2 and N2 to achieve the separation of nitrogen and oxygen, and the kinetic diameter of the oxygen molecule is small, so there is a faster diffusion rate in the micropores of the carbon molecular sieve. The kinetic diameter of the nitrogen molecule is larger, so the diffusion rate is slower, and the final enrichment from the adsorption column is high-purity nitrogen.
PSA nitrogen generator uses air as raw material, carbon molecular sieve as adsorbent, uses the principle of pressure swing adsorption, and uses the method of selective adsorption of oxygen and nitrogen by carbon molecular sieve to separate nitrogen and oxygen, and produces nitrogen automatic equipment.
The carbon molecular sieve is based on the slight difference between the kinetic diameter of O2 and N2 to achieve the separation of nitrogen and oxygen, and the kinetic diameter of the oxygen molecule is small, so there is a faster diffusion rate in the micropores of the carbon molecular sieve. The kinetic diameter of the nitrogen molecule is larger, so the diffusion rate is slower, and the final enrichment from the adsorption column is high-purity nitrogen.
Product Specifications
