Gas distribution plate, gas distribution structure and psa oxygen generator

Abstract

The invention discloses an air distributing disc. A lug boss is convexly arranged at the center, which faces towards one end, of the air distributing disc, the lug boss is of a hollow structure, one end, which is far away from the air distributing disc, of the lug boss is opened, a plurality of first ventilating holes are uniformly formed in the edge of the other end of the lug boss along a circumferential direction; a plurality of air guide columns are convexly arranged on the end face, which is far away from the lug boss, of the air distributing disc, and are of a hollow structure, and air guide channels communicated with the first ventilating holes are arranged on the air distributing disc so that an air flow passes through the air guide channels from the first ventilating holes and is discharged from the air guide columns. In an oxygenating process, a raw material air in an air inlet pipeline enters an air distributing cavity to be buffered, is radially distributed from the first ventilating holes formed in the edge of the other end, which is far away from the air distributing cavity, of the lug boss, and is uniformly distributed by virtue of the air guide channels and the air guide columns. The raw material air is fully buffered, so that the air flow entering an adsorbing tower is uniform, and the problem that particles on the surface of a molecular sieve easily drop is avoided. The invention further provides an air distributing structure and a PAS oxygenator.

Description

technical field [0001] The invention relates to the technical field of oxygen generators, in particular to an air distribution tray, an air distribution structure and a PSA oxygen generator. Background technique [0002] Oxygen is an indispensable substance to maintain human life. However, in some special cases, people have to face an environment lacking oxygen, or require a higher concentration of oxygen. Based on the needs of different situations, oxygen generators have emerged as the times require. [0003] At present, the common oxygen generator is double adsorption tower oxygen generator, which uses air as raw material, molecular sieve as adsorbent, and adopts PSA pressure swing adsorption to produce oxygen away from it. The raw air is first pretreated and then pressurized by the compressor. After the compressed air is filtered, cooled and dehydrated, it enters the adsorption tower equipped with molecular sieves through the inlet valve. The nitrogen in the air is absorb...

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a gas distribution plate and gas distribution structure with uniform air intake for the problem that the air flow of the existing oxygen generator into the adsorption tower is not uniform, which causes the particles on the surface of the molecular sieve to fall off easily, resulting in a low utilization rate of the molecular sieve. And PSA oxygen generator

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