Modular Nitrogen Generator Industrial PSA Nitrogen Production Equipment
Product Description
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 alternative 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.
Pressure swing adsorption (PSA for short) is a new type of gas adsorption and separation technology, which uses carbon molecular sieve as the adsorbent (carbon molecular sieve is a kind of ink particles made of coal powder as raw material and specially processed, and its surface is covered with countless micropores). A two bed PSA device is used to separate rich nitrogen from the air to obtain nitrogen.
Its separation principle: because the diameters of oxygen and nitrogen molecules are different (oxygen is big and oxygen is small), when compressed air passes through the adsorption bed, oxygen molecules directly enter the micropores on the surface of carbon molecular sieve and are adsorbed, while nitrogen molecules cannot enter the micropores and are enriched in the adsorption bed, forming a certain purity of nitrogen gas. The ability of carbon molecular sieve to adsorb oxygen increases with the increase of its pressure, but decreases with the decrease of its pressure. The principle of adsorption when carbon molecular sieve is pressurized and desorption when it is depressurized is combined with the circulation work of AB tower to achieve the separation purpose, which is referred to as PSA nitrogen production.
Advantages of PSA nitrogen production:
(1) Fast gas production and stable purity.
(2) It can work at room temperature and common pressure (0.8MPa), without heating during bed regeneration, saving energy and economy.
(3) It is easy to operate and maintain.
(4) It can work continuously and automatically.
Main Specifications
Nitrogen flow
0.5~150Nm³/h
Nitrogen purity
98~99.999%
Nitrogen pressure
0.1~0.6Mpa（adjustable）
Nitrogen dew point
-40℃~-70℃
Remarks: The volume of the modular nitrogen generator is limited, and the nitrogen flow is less than or equal to 50Nm ³/ h-99.99%, modular nitrogen generator is recommended; Nitrogen flow is greater than 50Nm ³/ h-99.99%, double tower nitrogen generator is recommended.
Equipment Flow Chart
Modular Nitrogen Generator
Nitrogen flow
0.5~160m³/h
Working temperature
5~40℃
Minimum intake pressure
0.6MPa
Nitrogen purity
98~99.999%
Noise value
＜70dB
Dew point temperature
-40℃~-70℃
Power specifications
220V 50Hz / AC110V DC24V
Nitrogen outlet pressure
0.1~0.6MPa(Adjustable and can have a built-in nitrogen tank )
Maximum ambient temperature
≤45℃
Control mode
PLC programmable control & human-computer interaction microcomputer control
Features of modular nitrogen generator
◆ High efficiency and low nitrogen ratio, so as to achieve energy conservation and emission reduction and improve economic benefits. The modular nitrogen generator adopts high-performance molecular sieve, and the air nitrogen ratio of 99.99% reaches 4.2:1. The air nitrogen ratio of 99.99% of the traditional double tower nitrogen generator is 5.5:1. For example, the 40 Nm3/h modular nitrogen generator requires 2.8 Nm3/min of compressed air, while the 40 Nm3/h twin tower nitrogen generator requires 3.7 Nm3/min of compressed air, saving 24% of energy consumption.
◆ PLC programmable control program is adopted, and high-resolution human-computer interaction is provided to detect various data (air pressure, nitrogen pressure, nitrogen purity, nitrogen flow) and record operation conditions. Realize the function of fully automatic evacuation of unqualified nitrogen, energy-saving and automatic temporary shutdown, and save energy to the greatest extent.
◆ The unique control mode of combination of solenoid valve and pneumatic line is adopted to avoid the traditional complicated multi gate control structure, and the operation is stable and reliable.
◆ High strength aluminum alloy structure is adopted, which is free from corrosion and rust, so as to avoid equipment failure caused by corrosion and falling off of pipe inner wall, ensure normal production operation, and greatly extend the service life of the whole machine. Some models can be equipped with nitrogen tanks to minimize the effective installation space for customers.
◆ The equipment supports the uninterrupted supply of required quality atmosphere for 24 hours to avoid the temporary shutdown caused by the use of gas cylinders. During capacity expansion, it is not necessary to consider the cost problem caused by removing old equipment and replacing larger equipment. It is only necessary to add corresponding modules to meet the expansion requirements, which is convenient, fast and cost saving.
Advantages Of Modular PSA
◆ Average flow separation technology, making full use of each adsorbent;
◆ Small size, suitable for various occasions;
◆ No pressure vessel testing is required, saving users money and time;
◆ The adsorption tower chamber is made of aluminum alloy, especially suitable for the food and medicine industry;
◆ Mold core replacement technology, easy and convenient maintenance;
◆ The adsorption tower adopts straight pipe design, snowstorm filling technology and spring compression device to avoid the tunneling effect of adsorbent.
Video
Product Specifications
Parameters of modular nitrogen generator
Purity 98% Series
Model
Gas production
（Nm³/h）
Air consumption
（Nm³/min）
Adsorption
pressure
（MPa）
Air inlet
Nitrogen outlet
Weight
（KG）
Dimensions
L*W*H
DENHOR98-10
10
0.3
0.7
G1/2
G1/2
100
500*600*1750
DENHOR98-20
20
0.5
0.7
G1/2
G1/2
160
500*780*1750
DENHOR98-30
30
0.85
0.7
G1/2
G1/2
220
500*960*1750
DENHOR98-40
40
1.2
0.7
G1/2
G1/2
280
500*1140*1750
DENHOR98-50
50
1.5
0.7
G3/4
G3/4
340
500*1320*1750
DENHOR98-60
60
1.85
0.7
G3/4
G3/4
400
500*1480*1750
DENHOR98-70
70
2
0.7
G3/4
G3/4
460
500*1660*1750
DENHOR98-80
80
2.5
0.7
G3/4
G3/4
520
500*1840*1750
DENHOR98-100
100
3
0.7
G1
G1
800
830*1320*1750
DENHOR98-120
120
3.8
0.7
G1
G1
1000
830*1480*1750
DENHOR98-140
140
4.5
0.7
G1
G1
1200
830*1660*1750
DENHOR98-160
160
5
0.7
G1
G1
1350
830*1840*1750
Purity 99% Series
Model
Gas production
（Nm³/h）
Air consumption
（Nm³/min）
Adsorption
pressure
（MPa）
Air inlet
Nitrogen outlet
Weight
（KG）
Dimensions
L*W*H
DENHOR29-5
5
0.3
0.7
G1/2
G1/2
100
500*600*1750
DENHOR29-15
15
0.5
0.7
G1/2
G1/2
160
500*780*1750
DENHOR29-25
25
0.85
0.7
G1/2
G1/2
220
500*960*1750
DENHOR29-35
35
1.2
0.7
G1/2
G1/2
280
500*1140*1750
DENHOR29-45
45
1.5
0.7
G3/4
G3/4
340
500*1320*1750
DENHOR29-55
55
1.85
0.7
G3/4
G3/4
400
500*1480*1750
DENHOR29-60
60
2
0.7
G3/4
G3/4
460
500*1660*1750
DENHOR29-70
70
2.5
0.7
G3/4
G3/4
520
500*1840*1750
DENHOR29-90
90
3
0.7
G1
G1
800
830*1320*1750
DENHOR29-110
110
3.8
0.7
G1
G1
1000
830*1480*1750
DENHOR29-130
130
4.5
0.7
G1
G1
1200
830*1660*1750
DENHOR29-150
150
5.5
0.7
G1
G1
1350
830*1840*1750
Purity 99.5% Series
Model
Gas production
（Nm³/h）
Air consumption
（Nm³/min）
Adsorption
pressure
（MPa）
Air inlet
Nitrogen outlet
Weight
（KG）
Dimensions
L*W*H
DENHOR295-5
5
0.3
0.7
G1/2
G1/2
100
500*600*1750
DENHOR295-15
15
0.5
0.7
G1/2
G1/2
160
500*780*1750
DENHOR295-20
20
0.85
0.7
G1/2
G1/2
220
500*960*1750
DENHOR295-25
25
1.2
0.7
G1/2
G1/2
280
500*1140*1750
DENHOR295-35
35
1.5
0.7
G3/4
G3/4
340
500*1320*1750
DENHOR295-45
45
1.85
0.7
G3/4
G3/4
400
500*1480*1750
DENHOR295-50
50
2
0.7
G3/4
G3/4
460
500*1660*1750
DENHOR295-60
60
2.5
0.7
G3/4
G3/4
520
500*1840*1750
DENHOR295-70
70
3
0.7
G1
G1
800
830*1320*1750
DENHOR295-90
90
3.8
0.7
G1
G1
1000
830*1480*1750
DENHOR295-100
100
4.5
0.7
G1
G1
1200
830*1660*1750
DENHOR295-120
120
5.2
0.7
G1
G1
1350
830*1840*1750
Purity 99.9% Series
Model
Gas production
（Nm³/h）
Air consumption
（Nm³/min）
Adsorption
pressure
（MPa）
Air inlet
Nitrogen outlet
Weight
（KG）
Dimensions
L*W*H
DENHOR39-5
5
0.3
0.7
G1/2
G1/2
100
500*600*1750
DENHOR39-10
10
0.5
0.7
G1/2
G1/2
160
500*780*1750
DENHOR39-15
15
0.85
0.7
G1/2
G1/2
220
500*960*1750
DENHOR39-20
20
1.2
0.7
G1/2
G1/2
280
500*1140*1750
DENHOR39-25
25
1.5
0.7
G3/4
G3/4
340
500*1320*1750
DENHOR39-30
30
1.85
0.7
G3/4
G3/4
400
500*1480*1750
DENHOR39-35
35
2
0.7
G3/4
G3/4
460
500*1660*1750
DENHOR39-40
40
2.5
0.7
G3/4
G3/4
520
500*1840*1750
DENHOR39-50
50
3
0.7
G1
G1
800
830*1320*1750
DENHOR39-60
60
3.8
0.7
G1
G1
1000
830*1480*1750
DENHOR39-70
70
4.5
0.7
G1
G1
1200
830*1660*1750
DENHOR39-80
80
5.5
0.7
G1
G1
1350
830*1840*1750
Purity 99.99% Series
Model
Gas production
（Nm³/h）
Air consumption
（Nm³/min）
Adsorption
pressure
（MPa）
Air inlet
Nitrogen outlet
Weight
（KG）
Dimensions
L*W*H
DENHOR49-2
2
0.3
0.7
G1/2
G1/2
100
500*600*1750
DENHOR49-5
5
0.5
0.7
G1/2
G1/2
160
500*780*1750
DENHOR49-10
10
1.2
0.7
G1/2
G1/2
220
500*1140*1750
DENHOR49-15
15
1.5
0.7
G3/4
G3/4
280
500*1320*1750
DENHOR49-20
20
2
0.7
G3/4
G3/4
340
500*1660*1750
DENHOR49-25
25
2.5
0.7
G3/4
G3/4
400
500*1840*1750
DENHOR49-30
30
3
0.7
G3/4
G3/4
460
830*1320*1750
DENHOR49-35
35
3.5
0.7
G1
G1
520
830*1480*1750
DENHOR49-40
40
4
0.7
G1
G1
800
830*1660*1750
DENHOR49-50
50
4.5
0.7
G1
G1
1350
830*1840*1750
Purity 99.999% Series
Model
Gas production
（Nm³/h）
Air consumption
（Nm³/min）
Adsorption
pressure
（MPa）
Air inlet
Nitrogen outlet
Weight
（KG）
Dimensions
L*W*H
DENHOR59-2
2
0.3
0.7
G1/2
G1/2
100
500*600*1750
DENHOR59-5
5
1
0.7
G1/2
G1/2
220
500*960*1750
DENHOR59-10
10
1.2
0.7
G1/2
G1/2
280
500*1140*1750
DENHOR59-15
15
1.85
0.7
G3/4
G3/4
400
500*1480*1750
DENHOR59-20
20
2.5
0.7
G3/4
G3/4
520
500*1840*1750
DENHOR59-25
25
3
0.7
G1
G1
800
830*1320*1750
DENHOR59-30
30
3.5
0.7
G1
G1
1000
830*1480*1750
DENHOR59-35
35
4
0.7
G1
G1
1200
830*1660*1750
DENHOR59-40
40
4.5
0.7
G1
G1
1350
830*1840*1750
Details
It has the characteristics of simple process flow, high degree of automation, fast gas production (15~30 minutes), low energy consumption, product purity can be adjusted according to user needs in a large range, convenient operation and maintenance, low operating cost, and strong device adaptability.
Working process
The modular nitrogen generator is composed of several high-strength aluminum alloy cavities. Each group of chambers is divided into two chambers, and each chamber is filled with adsorbent to separate nitrogen and oxygen from compressed air. When one chamber is working (adsorption), the opposite side is regenerated by pressure swing adsorption method.
During operation, the compressed air diffuses evenly upward from the bottom of the adsorption chamber, and the oxygen in the air is adsorbed by the adsorbent to achieve nitrogen oxygen separation.
During regeneration, a part of high-purity nitrogen expands from the working pressure to the atmospheric pressure, passes through the oxygen saturated adsorbent, takes away the oxygen adsorbed by it, and the adsorbent is regenerated.
PSA modular nitrogen generator size
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.
Product Specifications
