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What is cryogenic air separation nitrogen production equipment?

What is cryogenic air separation nitrogen production equipment?
May 26, 2025
Author: DEAR AST

The cryogenic air separation nitrogen production equipment uses air as raw material, which is compressed and purified, and then liquefied into liquid air through heat exchange. Then, liquid oxygen and liquid nitrogen are separated through distillation to obtain high-purity nitrogen gas. Large gas production capacity, high nitrogen purity of the product, and can be stored in liquid nitrogen storage tanks, suitable for large-scale industrial nitrogen production.
Dil air separation cryogenic air separation nitrogen production equipment is one of the core products. As a well-known equipment manufacturer in China's air separation industry, it has profound technical accumulation and rich practical experience in the field of nitrogen production equipment. It has the following equipment advantages:
1. Advanced technology: Deere Air Separation has a provincial-level air separation engineering technology research center and Deere Design and Research Institute, constantly developing new technologies and products to ensure that equipment performance is at the forefront of the industry.
2. Reliable quality: The equipment adopts high-quality materials and advanced manufacturing processes, and undergoes strict quality inspection and performance testing to ensure stable operation and long service life.
3. Customized services: Dier Air Separation can provide customized nitrogen production equipment solutions according to customer needs, meeting the nitrogen production needs of different industries and scales.
4. Comprehensive after-sales service: Dier Air Separation has a professional after-sales service team that provides customers with comprehensive services such as equipment installation, debugging, training, and maintenance, ensuring that customers have no worries.

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Another part of the nitrogen vaporized in the liquefier is heated up to a certain temperature in the high pressure heat exchanger and pumped out to the low pressure nitrogen press, the nitrogen separated by the gas-liquid separator is also heated up by the high pressure heat exchanger and then goes to the low pressure nitrogen press, compressed to a certain pressure by the low pressure nitrogen press and then back to the high pressure heat exchanger for heat exchange with liquid air separat...
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Special pressure-bearing equipment generally bears internal pressure, that will cause tensile stress inside the shell, which is called working stress. The working stress is directly proportional to the pressure and diameter, and inversely proportional to the vessel wall thickness. The axial stress is half of the circumferential stress. Therefore, for cylindrical vessels, the stress of longitudinal weld is twice that of girth weld. Because the geometric shape of the spherical shell is symmetrical to the spherical center, and the axial stress is equal to the circumferential stress in numerical value. Therefore, the wall thickness of the spherical vessel can be reduced by half as much as that of the cylindrical vessel under the same pressure and diameter.
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