A pressure swing adsorption nitrogen generator with high production efficiency

Abstract

The invention discloses a pressure swing adsorption nitrogen generator with high production efficiency, which comprises an air compressor, a centrifugal fan, an end cover and a partition plate. An air purification device is connected to the left side of the air compressor, and the air purification device An air storage tank is connected to the left side, and a first transfer gas tank and a second transfer gas tank are arranged behind the air storage tank, and the first transfer gas tank is arranged in front of the second transfer gas tank. The pressure swing adsorption nitrogen generator with high production efficiency is equipped with a gas mixing tank and an exhaust fan. The desorbed oxygen enters the gas mixing tank through the second connecting pipe, and the oxygen enters the upper side of the gas mixing tank through the vent hole, while The exhaust fan extracts the air from the lower side of the mixing tank to move upward, so that the outside air enters the air cavity under the action of negative pressure, and the air in the air cavity enters the upper side of the mixing tank through the air guide tube, so that the oxygen and the air are evenly mixed , which greatly reduces the concentration of oxygen, reduces the probability of deflagration accidents, and is safer to use.

Description

Technical field [0001] The present invention relates to the field of nitrogen making machine technology, specifically a highly productive pressure swing adsorption nitrogen making machine. Background [0002] Nitrogen is widely used in medical surgery, electronic product manufacturing and fertilizer manufacturing and other industries, so it is necessary to use the nitrogen machine, of which the pressure swing adsorption nitrogen machine has the advantages of simple process flow and high degree of automation, the nitrogen machine produces a higher proportion of oxygen in the exhaust gas, but the existing nitrogen machine is usually not provided with a dilution device, directly the exhaust gas is discharged in the air easily leads to oxygen enrichment near the equipment, and then increases the risk of deflagration, which has certain safety risks when used. And the adsorbent of the existing nitrogen making machine is usually located in the same adsorption tank as the gas to be separ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a pressure swing adsorption nitrogen generator with high production efficiency to solve the problem that the existing nitrogen generator proposed in the above background technology is usually not equipped with a dilution device, and it is easy to cause the exhaust gas to be directly discharged into the air. Oxygen is enriched near the equipment, which increases the risk of deflagration, and the adsorbent of the existing nitrogen generator is usually located in the same adsorption tank as the gas to be separated, and when the nitrogen in the adsorption tank is discharged, it will inevitably cause pressure In order to avoid oxygen desorption and mixing into nitrogen due to low air pressure, it is necessary to retain a part of nitrogen to maintain air pressure, and this part of nitrogen is discharged together with desorbed oxygen, which reduces the production efficiency of the nitrogen generator

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