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Vacuum pressure swing adsorption oxygen production system with product gas transition tanks and oxygen production method thereof

A vacuum pressure swing adsorption, oxygen production system technology, applied in the directions of oxygen/ozone/oxide/hydroxide, products, oxygen production, etc., can solve the problem of increasing the energy consumption of the oxygen production system, venting noise, and reducing the operation of the raw air blower Stability and other issues, to achieve the effect of improving utilization methods, reducing venting losses, and improving running stability

Active Publication Date: 2017-10-20
杨炯良
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0018] In the existing vacuum pressure swing adsorption oxygen production system, due to the existence of equalizing step-down and equalizing recovery processes, the raw material air blower must be vented twice through the blower vent switch valve during an adsorption regeneration cycle process, not only Reduce the running stability of the raw air blower, and also increase the energy consumption of the oxygen generation system, resulting in venting noise

Method used

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  • Vacuum pressure swing adsorption oxygen production system with product gas transition tanks and oxygen production method thereof
  • Vacuum pressure swing adsorption oxygen production system with product gas transition tanks and oxygen production method thereof
  • Vacuum pressure swing adsorption oxygen production system with product gas transition tanks and oxygen production method thereof

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Embodiment 1

[0040] Embodiment one: if figure 1 As shown, a vacuum pressure swing adsorption oxygen production system with a product gas transition tank, which includes adsorption tower A, adsorption tower B, adsorption tower C, air suction main pipe P1, vent main pipe P3, blower AC, vacuum pump VP, product buffer Tank VS1 and product gas transition tank VS2A, product gas transition tank VS2B, and product gas transition tank VS2C for maintaining the one-dimensional flow of product gas in and out.

[0041] like figure 1 As shown, the outlet end of the air suction main pipe P1 is connected in parallel with a self-priming switching valve V1A, a self-priming switching valve V1B and a self-priming switching valve V1C, and a self-priming switching valve V1A, a self-priming switching valve V1B and a self-priming switching valve V1C The other end is connected with the bottom of adsorption tower A, adsorption tower B and adsorption tower C respectively.

[0042] like figure 1 As shown, the outle...

Embodiment 2

[0067] Embodiment two: the difference between this embodiment and embodiment one is: as Figure 5 As shown, there is no product gas transition switching valve V7A, product gas transition switching valve V7B, and product gas transition switching valve V7C between the product gas main valve V8 and the top of the product gas transition tank VS2A, product gas transition tank VS2B, and product gas transition tank VS2C .

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Abstract

The invention discloses a vacuum pressure swing adsorption oxygen production system with product gas transition tanks. According to the invention, a corresponding product gas transition tank is arranged to each adsorption tower, the product gas produced by each adsorption oxygen production process of the adsorption towers passes through the product gas transition tanks in order and then enter a product gas buffer tank, a forepart high oxygen concentration part of the product gas enters the product gas buffer tank to serve as an oxygen production system product gas, and a posterior low oxygen concentration part is temporarily stored in the product gas transition tanks according to the produced oxygen concentration gradient, when corresponding adsorption towers are subjected to vacuum pumping flushing regeneration and product gas pressurization, the part of temporarily stored low oxygen concentration product gas flows back to the adsorption towers for use as flushing regeneration gas and product gas pressurization gas. The invention also discloses an oxygen production method. The system and the method provided by the invention have the advantages of: improving adsorbent use efficiency, improving the system oxygen recovery rate, saving the system energy consumption, and reducing the system cost.

Description

technical field [0001] The invention relates to a pressure swing adsorption gas separation technology, in particular to a vacuum pressure swing adsorption oxygen production system with a product gas transition tank and an oxygen production method thereof. Background technique [0002] The vacuum pressure swing adsorption oxygen production system uses a blower to boost the raw material air and sends it into the adsorption tower, and uses different adsorbents filled in the adsorption tower to degrade the water (H) in the raw air under high pressure. 2 O), carbon dioxide (CO 2 ) and nitrogen (N 2 ) for selective adsorption, while the unadsorbed oxygen (O 2 ) becomes the product gas produced by the system; when the adsorbent is saturated, a vacuum pump is used to evacuate and reduce the pressure of the adsorption tower, so that the water (H 2 O), carbon dioxide (CO 2 ) and nitrogen (N 2 ) is desorbed, the adsorbent is regenerated, and a multi-tower cycle is used to obtain a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/047C01B13/02
CPCB01D53/0476C01B13/0262C01B13/027C01B13/0274C01B2210/0018C01B2210/002B01D2253/116B01D2253/104B01D2253/108B01D2256/12B01D2257/80B01D2257/504B01D2257/102B01D2259/40028Y02C20/40Y02P20/151
Inventor 杨炯良胡学奎梁勇李伟
Owner 杨炯良