A pressure swing adsorption oxygen device

Abstract

The present invention relates to the technical field of oxygen preparation, in particular to pressure swing adsorption oxygen equipment, comprising two adsorption tanks and an oxygen buffer tank, the upper side of the adsorption tank is matched with a closing cover, and the first air guide tube is fixedly connected with a desorption outlet assembly. Both the first air guide pipe and the second air guide pipe are fixedly connected with a pneumatic switching valve, a rotating rod is vertically arranged in the adsorption tank, a servo motor is fixedly installed on the upper end of the cylindrical cover, and a rotating rod is installed in the opening of the lower end of the cylindrical cover. The air flow guide assembly connected with the transmission, and the auxiliary desorption assembly connected with the rotary rod transmission is arranged in the cylinder cover. The invention can increase the adsorption effect of the adsorption tank, and at the same time, it is convenient to control the gas flow direction in the adsorption tank, so as to ensure that the adsorption and desorption actions are not affected. The invention also sets up auxiliary desorption components to increase the desorption effect and efficiency. The buffer tank is used to control the oxygen pressure as well as the oxygen temperature.

Description

technical field [0001] The invention relates to the technical field of oxygen preparation, in particular to pressure swing adsorption oxygen equipment. Background technique [0002] Pressure swing adsorption is a kind of gas adsorption separation technology. PSA oxygen equipment is a device that uses pressure swing adsorption to filter air to produce high-purity oxygen. This device generally uses two adsorption tanks filled with zeolite molecular sieves in sequence. Compressed air for filtration and adsorption. When one adsorption tank is saturated, switch to another adsorption tank for filtration and adsorption. At the same time, the saturated adsorption tank performs desorption operation, and regenerates and filters the zeolite molecular sieve to restore its function of filtration and adsorption. Continuous switching can Achieve uninterrupted oxygen production. [0003] But the existing PSA oxygen equipment has the following disadvantages: [0004] 1. When desorbing one ...

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Problems solved by technology

[0004] 1. When desorbing one adsorption tank, it is generally necessary to use part of the oxygen produced by another adsorption tank for auxiliary desorption, which is prone to reflux, which will affect the oxygen production;

[0005] 2. At the same time, the efficiency and effect of the existing desorption action are not high enough, and the removal effect on water is poor. When the water content of the zeolite molecular sieve is high, it is easy to fail to desorb and need to be replaced.

[0006] 3. For the produced oxygen, a buffer tank needs to be installed due to the pressure problem. At the same time, the produced oxygen needs to be temperature controlled. The existing equipment needs more devices to achieve buffering and temperature control effects.

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