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The small air separation unit industrial application design

The small air separation unit industrial application design
May 27, 2022
Author: DEAR AST

At present, all types of small air separation units, large air separation units and liquid air separation plants has been widely used successfully in all walks of life, domestic manufacturers of similar products are increasing, these new manufacturers are large and small, varying in size, and all have their own highlights, the industry as a whole mainly to meet the needs of users with gas as the main premise, reduce the price to obtain the market, but the overall control performance of domestic air separation products is poor, the industrialization degree is low. As the level of science and technology continues to progress, the industrialisation of various types of equipment is bound to develop in the direction of a neat and beautiful appearance, clear and unambiguous logo, friendly human-machine control interface, outstanding performance of the whole machine control and industrialisation applications.
A complete set of small air separation units, large air separation units and liquid air separation plants industrial application design, combined with molecular sieve sinking quality problems on the core components such as adsorption tower components and even small air separation units, large air separation units and liquid air separation plants, such as the overall, local, operation and control, human-machine interface and identification of industrial design, from the composition of the system to study the details and difficult points of research and development.
DEAR Design & Research Institute has long been in deep cooperation with the Chinese Academy of Sciences, Japan's Dayang Research Institute of Nitric Acid, Tianjin University, Xi'an University of Posts and Telecommunications and other well-known institutions at home and abroad.19

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Answer: select the small cryogenic air separation unit with argon, and give priority to verifying the real continuous operation performance of the unit with argon below 1000nm ³/h, avoiding the scheme with only drawings and no long-term operation record. Key dimensions of model selection: 1. operation performance: it is confirmed that the manufacturer has a long-term stable production case of small flow air separation with argon. Deere air separation small-scale hydrogen free total distillation argon extraction air separation, supports scale customization below 1000nm ³/h, and is equipped with intelligent control system, with mature landing performance. 2. power consumption per unit liquid argon
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Answer: the default unit gauge pressure is MPa (g), and the mainstream is cryogenic full low pressure external compression process. Design pressure of conventional energy-saving models in the industry: 0.50~0.55 MPa (g); The lower limit of stability of ordinary process is about 0.45 MPa (g). In general, it is not recommended to be lower than 0.42 MPa (g) for a long time in the conventional scheme. If the pressure is too low, there will be risks such as poor heat exchange in the precooling tower, insufficient purification of molecular sieve, difficult to balance the cooling capacity, and the air compressor close to the surge area. The internal compressed air is distributed with a booster. The main air compressor is mostly 0.55~0.65 MPa (g), and the lower limit is mostly 0.50 MPa (g), which is difficult to achieve below 0.45MPa (g). Deere air separation ultra-low discharge pressure patented energy-saving external compression air separation, through the collaborative optimization of the w
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