Flow control structure of nitrogen-oxygen separation device

Abstract

The invention discloses a flow control structure of a nitrogen-oxygen separation device. The device includes a shell, an air inlet is formed at one end of the shell, a flow limiting assembly is installed on the inner wall of the upper side of the shell, a molecular sieve is fixedly mounted on the inner side of the shell, a guide-in pipe is arranged at the end, close to the flow limiting assembly,of the molecular sieve, a guide-out pipe is arranged at the other end of the molecular sieve, a supporting vertical plate is installed on the upper surface of the shell, a plurality of air outlet pipes are movably installed on one side of the supporting vertical plate, and a fixing pipe is fixedly installed on the inner wall of the upper side of the shell and located on the inner side of the guide-out pipe; according to the invention, the purpose of controlling the flow of gas entering the guide-in pipe can be achieved, so that the nitrogen-oxygen mixed gas separation rate is controlled, so that separation of the nitrogen-oxygen mixed gas is precisely controlled, the amount of discharged oxygen can be controlled, meanwhile, the oxygen requirements of multiple positions are met, manual assistance is not needed in the flow control process, the labor intensity is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of oxygen generators, in particular to a flow control structure of a nitrogen and oxygen separation device. Background technique [0002] The principle of the oxygen generator is to use the air separation technology, first compress the air with high density and then use the difference in the condensation point of each component in the air to separate the gas and liquid at a certain temperature, and then further rectify it; Oxygen machine working principle: using molecular sieve physical adsorption and desorption technology. The oxygen concentrator is filled with molecular sieves, which can absorb nitrogen in the air when pressurized, and the remaining unabsorbed oxygen is collected and purified to become high-purity oxygen. At present, most medical oxygen concentrators use PSA (pressure swing adsorption) air separation oxygen production technology, which is based on the difference in the adsorption capacity...

AI Technical Summary

Problems solved by technology

[0005] The invention drives each flow limiting plate to move to limit the flow by driving the cylinder, and controls the communication between multiple air outlet pipes and the outlet pipes through the cooperation of the lifting motor and the rotating motor. The flow control structure is completely automatic, and in the process of flow control, The traditional flow control structure for nitrogen and oxygen separation requires manual assistance, high labor intensity and low work efficiency.

Images