Molecular sieve adsorption tower

Abstract

The invention discloses a molecular sieve adsorption tower which comprises a cylinder and a molecular sieve, wherein an airflow equalizing plate is arranged in the cylinder; the molecular sieve is arranged in a cavity formed between the airflow equalizing plate and the end face on the top of the cylinder; the cylinder is sleeved with an outer tube; two ends of the cylinder extend out of the outer tube; a cavity is formed between the inner wall of the outer tube and the cylinder; the top end of the outer tube is connected with the outer wall of the cylinder in a sealed mode; a gap is formed between the bottom end of the outer tube and the outer wall of the cylinder; a hose is arranged at the bottom end of the outer tube; the top end of the hose is connected with the cylinder in the sealed mode; the bottom end of the hose is connected with the outer wall of the cylinder in the sealed mode; a through hole is formed in the wall of the cylinder wrapped by the hose. After gas enters the cavity between the outer tube and the outer wall of the cylinder and the hose from an air inlet pipe, the gas overflows into the molecular sieve through the through hole in the cylinder, the gas flows slowly, and pulverization of the molecular sieve caused by friction force generated by the airflow is reduced.

Description

technical field [0001] The invention relates to the field of gas drying, in particular to a molecular sieve adsorption tower for preventing molecular sieve pulverization. Background technique [0002] Molecular sieve pulverization is one of the important factors that seriously affect the life of the oxygen generator. In the prior art, the air inlet gas directly enters the cylinder, blows the molecular sieve, increases the friction between the molecular sieves, and accelerates the molecular sieve pulverization. At the same time, the molecular sieve After pulverization, it is easy to crystallize. When replacing the molecular sieve, the molecular sieve is not easy to take out, which makes maintenance troublesome and increases maintenance costs. Contents of the invention [0003] The invention overcomes the deficiencies of the prior art and provides a molecular sieve adsorption tower that prevents the molecular sieve from being pulverized. [0004] In order to solve the probl...

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Problems solved by technology

[0002] Molecular sieve pulverization is one of the important factors that seriously affect the life of the oxygen generator. In the prior art, the air inlet gas directly enters the cylinder, blows the molecular sieve, increases the friction between the molecular sieves, and accelerates the molecular sieve pulverization. At the same time, the molecular sieve After pulverization, it is easy to crystallize. When replacing the molecular sieve, the molecular sieve is not easy to take out, which makes maintenance troublesome and increases maintenance costs.

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