Novel pressure swing adsorption top high-purity gas taking device

Abstract

The utility model discloses a novel pressure swing adsorption top high-purity gas taking device which comprises an adsorption cylinder body, and a transverse distribution type gas taking structure is mounted on the adsorption cylinder body; the transverse distribution type gas taking structure comprises an adsorption cavity, a fixed bracket, a molecular sieve, a gas taking device, a sealing top cover and a gas taking pipe, and has the beneficial effects that the problems that gas is taken from gas outlets of an existing adsorption tower through seamless pipes, the gas taking device is small in area and axially distributed, the gas flow speed is high, the impact force is large, and the gas taking effect is poor are solved; the problems that noise and vibration are prone to being generated, equipment pipelines are damaged after long-time use, and the gas taking effect is affected by the stability of the purity of a gas taking position due to the too high gas flow speed are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of adsorption cylinders, in particular to a novel pressure swing adsorption top high-purity gas extractor. Background Art

[0002] An adsorption cylinder is a device used to adsorb gas or vapor, usually consisting of a tube and an adsorbent filled inside. The adsorbent can selectively adsorb the target gas or vapor without adsorbing other gases or vapors. Adsorption cylinders are widely used in environmental monitoring, chemical analysis, pharmaceutical manufacturing and other fields. In environmental monitoring, adsorption cylinders can be used to collect harmful gas components in the air, such as volatile organic compounds, benzene, formaldehyde, etc. In chemical analysis, adsorption cylinders can be used to separate and enrich target compounds in samples. In pharmaceutical manufacturing, adsorption cylinders can be used to separate and purify drugs. The material and type of adsorbent of the adsorption cylinder depend on the application field and the gas or vapor components that need to be adsorbed. The existing adsorption tower outlets are all seamless pipes for gas extraction. The gas extractor has a small area and is axially distributed. The gas flow rate is fast, the impact force is large, and it is easy to generate noise and vibration. Long-term use will cause damage to the equipment pipeline, and too fast a gas flow rate will affect the stability of the purity of the gas extraction position and affect the gas extraction effect. Utility Model Content

[0003] To achieve the above objectives, the utility model is implemented through the following technical solutions: a novel pressure swing adsorption top high-purity gas extractor, comprising: an adsorption tube body, on which a horizontal distributed gas extraction structure is installed;

[0004] The horizontal distributed gas extraction structure includes: an adsorption chamber, a fixed bracket, a molecular sieve, a blind plate, a sealing top cover and a gas extraction pipe;

[0005] The adsorption chamber is opened inside the adsorption tube body, the fixed bracket is installed at the opening position on the adsorption tube body, the molecular sieve is installed in the adsorption chamber, the blind plate is installed above the fixed bracket, the sealing top cover is installed on the top of the adsorption tube body, and the air intake pipe is horizontally embedded in the top side wall of the adsorption tube body.

[0006] Preferably, the fixed bracket is installed on the inner wall surface of the adsorption chamber through a fixed block.

[0007] Preferably, the sealing top cover is mounted on the adsorption cylinder body by fixing bolts.

[0008] Preferably, the air extraction pipe is installed on the adsorption cylinder body through a connecting sleeve.

[0009] Preferably, a coconut palm filter is installed on the fixed bracket.

[0010] Preferably, a plurality of air intake ports are provided on the side wall surface of the fixed bracket.

[0011] Beneficial Effects

[0012] The utility model provides a novel pressure swing adsorption top high-purity gas extractor, which has the following beneficial effects: this scheme uses a horizontally distributed gas extraction structure, and the gas extraction method is changed from point to plane, which increases the gas outlet area, and the air flow distribution diffuses from the axial direction to the surrounding areas, thereby increasing the molecular sieve adsorption area and increasing the adsorption rate of the adsorption tube. Due to the adoption of the top gas extraction structure, the top gas purity is higher during the molecular sieve adsorption process, which can improve the adsorption efficiency of the adsorption tube, especially for high-purity nitrogen generators, to ensure the stability of the purity at the gas extraction position, prevent purity fluctuations caused by the axial distribution of the air flow, reduce the waste of molecular sieves caused by purity problems, and make the gas distribution more reasonable, which solves the problem that the existing adsorption tower outlets are all seamless pipes for gas extraction, the gas extractor area is small and axially distributed, the gas flow rate is fast, the impact force is large, and it is easy to generate noise and vibration. Long-term use will cause damage to the equipment pipeline, and too fast a gas flow rate will lead to the stability of the purity at the gas extraction position, affecting the gas extraction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main cross-sectional structure of a novel pressure swing adsorption top high-purity gas extractor described in the utility model.

[0014] Figure 2 This is an enlarged structural schematic diagram of a fixed bracket of a novel pressure swing adsorption top high-purity gas extractor described in the utility model.

[0015] Figure 3 This is a schematic diagram of the enlarged structure of the fixing bolts of a novel pressure swing adsorption top high-purity gas extractor described in the utility model.

[0016] In the figure: 1-adsorption tube body; 2-adsorption chamber; 3-fixed bracket; 4-molecular sieve; 5-blind plate; 6-sealed top cover; 7-gas extraction pipe; 8-fixed block; 9-fixed bolt; 10-connecting sleeve. DETAILED DESCRIPTION

[0017] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0018] Example: See Figure 1-3When using the horizontally distributed gas intake structure, when the adsorption tube body 1 is working, the molecular sieve 4 arranged in the adsorption chamber 2 absorbs specific gases through high adsorption and high selectivity, thereby realizing gas separation. The gas not adsorbed by the molecular sieve 4 is discharged to the cavity position formed by the sealing top cover 6 and the adsorption tube body 1 through the gas intake port opened on the side wall of the fixed bracket 3. The gas intake mode is changed from point to plane, which increases the gas outlet area. The air flow distribution diffuses from axial to all sides, which increases the adsorption area of ​​the molecular sieve, increases the adsorption rate of the adsorption tube, prevents purity fluctuations caused by axial distribution of the air flow, and reduces the waste of molecular sieves caused by purity problems. The gas after adsorption and separation is discharged through the gas intake pipe 7 installed horizontally on the sealing top cover 6.

[0019] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel pressure swing adsorption top high-purity gas extractor, comprising: The adsorption cylinder body (1) is characterized in that a transverse distributed air intake structure is installed on the adsorption cylinder body (1); The transverse distributed gas extraction structure comprises: an adsorption chamber (2), a fixed support (3), a molecular sieve (4), a blind plate (5), a sealing top cover (6) and a gas extraction pipe (7); The adsorption chamber (2) is opened inside the adsorption cylinder body (1), the fixed bracket (3) is installed at the opening position on the adsorption cylinder body (1), the molecular sieve (4) is installed in the adsorption chamber (2), the blind plate (5) is installed above the fixed bracket (3), the sealing top cover (6) is installed on the top of the adsorption cylinder body (1), and the air extraction pipe (7) is transversely embedded in the top side wall surface of the adsorption cylinder body (1).

2. A novel pressure swing adsorption top high-purity gas extractor according to claim 1, characterized in that: The fixed bracket (3) is mounted on the inner wall surface of the adsorption chamber (2) via a fixed block (8).

3. A novel pressure swing adsorption top high-purity gas extractor according to claim 1, characterized in that: The sealing top cover (6) is mounted on the adsorption cylinder body (1) via fixing bolts (9).

4. A novel pressure swing adsorption top high-purity gas extractor according to claim 1, characterized in that: The air extraction pipe (7) is installed on the adsorption cylinder body (1) via a connecting sleeve (10).

5. A novel pressure swing adsorption top high-purity gas extractor according to claim 1, characterized in that: A coconut palm filter is installed on the fixed bracket (3).

6. A novel pressure swing adsorption top high-purity gas extractor according to claim 1, characterized in that: A plurality of air intake ports are provided on the side wall surface of the fixed bracket (3).

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