Working method of pressure swing adsorption oxygen equipment

Abstract

The invention relates to the technical field of oxygen preparation, and particularly relates to a use method of pressure swing adsorption oxygen equipment. The equipment comprises two adsorption tanksand an oxygen buffer tank, a sealing cover is arranged in a tank opening in the upper side of each adsorption tank, a first gas guide pipe is fixedly connected with a desorption leading-out assembly,pneumatic switching valves are fixedly connected to the first gas guide pipe and a second gas guide pipe, a rotating rod is vertically arranged in each adsorption tank, a servo motor is fixedly arranged on the upper end face of each cylinder cover, a gas flow guide assembly in transmission connection with each rotating rod is arranged in an opening in the lower end of the corresponding cylinder cover, and an auxiliary desorption assembly in transmission connection with each rotating rod is arranged in the corresponding cylinder cover. The adsorption effect of the adsorption tanks can be improved, meanwhile, the flow direction of gas in the adsorption tanks is conveniently controlled, it is guaranteed that adsorption and desorption actions are not affected, an auxiliary desorption assemblyis further arranged to improve the desorption effect and efficiency, and an oxygen buffer tank is arranged and is used for controlling the oxygen pressure and controlling the oxygen temperature.

Description

technical field [0001] The invention relates to the technical field of oxygen preparation, in particular to a method for using 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. ...

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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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