Multilayer molecular sieve adsorption tower device

Abstract

The invention discloses a multilayer molecular sieve adsorption tower device, which comprises an adsorption tower filled with a molecular sieve filler, the bottom of the adsorption tower is provided with a gas inlet assembly, and the top in the adsorption tower is located above the molecular sieve filler to form an enrichment space for enriching screened first gas. The first gas is output through a gas output pipeline, the height-diameter ratio of the adsorption tower is (3-8): 1, and the pressure generated on each layer of molecular sieve particles in the molecular sieve filler when the air uniformly input through the gas inlet assembly flows upwards is always smaller than the upper gravity borne by each layer of molecular sieve particles in the molecular sieve filler. No compression is adopted above the molecular sieve filler, the pressure on the molecular sieve filler when air flows upwards is far smaller than the gravity above the molecular sieve filler by controlling the diameter-height ratio of the adsorption tower, compression is realized through the gravity of the molecular sieve filler, and friction generated by movement of a molecular sieve is avoided.

Description

technical field [0001] The invention relates to the technical field of adsorption towers, in particular to a multi-layer molecular sieve adsorption tower device. Background technique [0002] The adsorption tower is a device that packs molecular sieve packings such as molecular sieves in the tower, so that some components in the gas or liquid entering the tower are adsorbed by the porous structure of the adsorbent, thereby realizing the separation of components. [0003] Molecular sieve oxygen production technology adopts the characteristics of zeolite molecular sieve. In the adsorption tower, the oxygen and nitrogen in the air are separated by changing the external air pressure of the molecular sieve. In the actual production process, the internal structure of the adsorption tower and improper filling of the molecular sieve directly affect the The service life of molecular sieves. [0004] In order to solve the above problems, the current technology is to press the molecul...

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Problems solved by technology

[0006] 2) The cross-sectional area of ​​the adsorption tower is large. When the air enters from the bottom, the pressure on the molecular sieve far exceeds the gravity of the molecular sieve and the force of the pressure device during the process of penetrating the adsorption tower, and it is easy to form the whole molecular sieve in the adsorption tower. Movement, resulting in friction between the molecular sieve and the inner wall of the adsorption tower

[0007] 3) The deterioration or failure of the mechanical function will lead to the rapid pulverization of the entire molecular sieve, which directly affects the reliability of the entire system

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