Molecular sieve adsorber for air

Abstract

The invention discloses a molecular sieve adsorber for air. The molecular sieve adsorber comprises a horizontal type cylindrical tank; an upper pipe for entering of gas and a lower pipe for exiting ofthe gas are respectively connected with the top and the bottom of the tank; pulley bottom frames for movement and supporting are mounted on the bottom surface, beside the lower pipe, of the tank; a rotating mechanism is further mounted in the tank; an arc block A and an arc block B which are connected with the rotating mechanism are respectively connected with the inner wall of the tank; slidingchutes are formed in the arc block A and the arc block B; a multi-surface hollow sphere packing layer, a carbon dioxide removal layer and a hydrocarbon removal layer are put in the molecular sieve adsorber to adsorb moisture, carbon dioxide and most of the hydrocarbon in the air; hot and dry impure nitrogen gas flows enter the molecular sieve adsorber through the upper pipe and the lower pipe in adirection opposite to a negative flow so as to carry out regeneration; the internal part of the adsorber is continuously rotated; and centrifugal force generated in a rotation process is matched withmovement of the nitrogen to improve the regeneration speed.

Description

technical field [0001] The invention relates to a molecular sieve adsorber, in particular to a molecular sieve adsorber for air. Background technique [0002] In addition to oxygen, nitrogen, and argon, there are also a small amount of water vapor, carbon dioxide, acetylene, and other hydrocarbons in the air. The water vapor content in the air is about 4-40g / m3 (varies with climate and region) , the content of carbon dioxide is about 0.6 ~ 0.9g / m3 (affected by height), and the content of acetylene is about 0.01 ~ 0.1cm3 / m3. Although the content of these impurities in each cubic meter of air is not large, because the air separation equipment needs to be continuous Inhale the air and accumulate over time. These impurities will cause damage to the air separation equipment. The frozen moisture and carbon dioxide will deposit in the cryogenic heat exchanger, turbo expander or rectification tower, and will also block the pipes and valves. Acetylene will accumulate in the liquid T...

AI Technical Summary

Problems solved by technology

[0002] In addition to oxygen, nitrogen, and argon, there are also a small amount of water vapor, carbon dioxide, acetylene, and other hydrocarbons in the air. The water vapor content in the air is about 4 to 40g / m3 (varies with climate and region) , the content of carbon dioxide is about 0.6 ~ 0.9g / m3 (affected by height), and the content of acetylene is about 0.01 ~ 0.1cm3 / m3. Although the content of these impurities in each cubic meter of air is not large, because the air separation equipment needs to be continuous Inhale the air and accumulate over time. These impurities will cause damage to the air separation equipment. The frozen moisture and carbon dioxide will deposit in the cryogenic heat exchanger, turbo expander or rectification tower, and will also block the pipes and valves. Acetylene will accumulate in the liquid There is a risk of explosion in oxygen. In order to ensure the long-term safe and reliable operation of air separation equipment, molecular sieve adsorbers must be installed to remove these impurities. The existing molecular sieve adsorbers on the market have high resistance, poor adsorption effect, and large floor space, so they cannot be effectively used. remove impurities

Images