Molecular sieve adsorption tower modular structure system of oxygen generator and oxygen generator

Abstract

The utility model relates to the technical field of oxygenerators, in particular to a molecular sieve adsorption tower modular structure system of an oxygenerator and the oxygenerator. Which comprises a molecular sieve adsorption tower (1) and an upper end cover assembly (2) with a valve nitrogen discharge port (15), and is characterized by further comprising a silencing shell (3), the silencing shell (3) and the upper end cover assembly (2) jointly form a silencing cavity (4), and a gas inlet (8) and a nitrogen discharge gas outlet (9) are formed in the silencing cavity (4). The molecular sieve adsorption tower disclosed by the utility model is integrally designed in a modularized manner, a plurality of silicone tubes and joints are omitted, a gas path is formed by plastic structural parts, and the molecular sieve adsorption tower is relatively simple in structure and convenient to mount and dismount.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen generators, and in particular to a modular structure system of a molecular sieve adsorption tower of an oxygen generator and an oxygen generator. Background Art

[0002] At present, with the development of medical equipment, most families and hospitals use molecular sieve oxygen generators to produce oxygen. Compressed air enters the molecular sieve adsorption tower, and the molecular sieve adsorbs nitrogen in the air to separate oxygen. The nitrogen discharges the oxygen into the oxygen storage tank. When the molecular sieve adsorption tower discharges nitrogen, it will generate a lot of impact and noise. For example, in patent CN 212832838U, Figure 1 As shown, the pressurized air entering the system through the air intake nozzle is controlled by the distribution valve, and the nitrogen exhaust nozzle is opened to discharge the internal nitrogen. The nitrogen is discharged through the exhaust pipe, and the noise generated by the nitrogen exhaust pipe when in use is not solved. Utility Model Content

[0003] The purpose of the utility model is to overcome the defects of the prior art and propose a modular structural system of a molecular sieve adsorption tower for an oxygen generator, comprising a molecular sieve adsorption tower 1 and an upper end cover assembly 2 with a valve nitrogen exhaust port 15, the modular structural system also comprising a muffler shell 3, the muffler shell 3 and the upper end cover assembly 2 together form a muffler chamber 4, the muffler chamber 4 is provided with an air inlet 8 and a nitrogen exhaust outlet 9.

[0004] Preferably, the air inlet 8 is connected to the air inlet nozzle of the upper end cover assembly 2 through a pipeline.

[0005] Preferably, the silencing cavity 4 is filled with silencing cotton 7.

[0006] Preferably, the nitrogen exhaust outlet 9 is connected to a nitrogen exhaust muffler through a nitrogen exhaust nozzle and a pipeline.

[0007] Preferably, the silencer shell 3 is fixedly connected to the upper end cover assembly 2 as an integral structure, and the structural assembly and the molecular sieve adsorption tower 1 are detachably installed.

[0008] Preferably, the system further comprises a lower end cover assembly 5 arranged at the bottom, wherein an air block 13 and a one-way valve plate 14 are arranged in the lower end cover assembly 5 .

[0009] The utility model provides an oxygen generator, which comprises a modular structural system of a molecular sieve adsorption tower of the oxygen generator.

[0010] Compared with the prior art, the advantages of the present invention are:

[0011] The utility model has a simple structure, and a silencer shell is arranged. When the nitrogen is discharged from the nitrogen exhaust nozzle, the nitrogen is evenly distributed in the silencer cavity and is discharged through the nitrogen exhaust port, thereby greatly reducing the nitrogen exhaust noise.

[0012] The silencer shell and the upper end cover assembly of the utility model are an integrated structural assembly, which is arranged above the molecular sieve adsorption tower and is convenient for disassembly and installation.

[0013] The molecular sieve adsorption tower of the utility model has an overall modular design, which saves a lot of silicone tubes and joints, and its gas path is composed entirely of structural parts. The structure is relatively simple and convenient for installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a device diagram of a molecular sieve adsorption tower assembly of an oxygen generator in the prior art;

[0015] Figure 2 This is a three-dimensional diagram of the modular structure system of the molecular sieve adsorption tower of the oxygen generator of the utility model;

[0016] Figure 3 This is the gas circuit design diagram of the utility model;

[0017] Figure 4 This is a cross-sectional view of the modular structure system of the molecular sieve adsorption tower of the oxygen generator of the utility model;

[0018] Figure 5 This is a side view of the modular structure system of the molecular sieve adsorption tower of the oxygen generator of the utility model;

[0019] Figure 6 This is a top view of the molecular sieve adsorption tower of the utility model;

[0020] Reference numerals:

[0021] 1. Molecular sieve adsorption tower, 2. Upper end cover assembly, 3. Silencer shell, 4. Silencer chamber, 5. Lower end cover assembly, 6. Oxygen storage tank assembly, 7. Silencer cotton, 8. Air inlet, 9. Nitrogen exhaust outlet, 10. Oxygen outlet, 11. Pressure test port, 12. Valve outlet, 13. Air resistance, 14. One-way valve plate, 15. Valve nitrogen exhaust port, 16. Valve air inlet. DETAILED DESCRIPTION

[0022] The technical solution of the utility model is described in detail below in conjunction with the embodiments and drawings.

[0023] The utility model provides a modular structure system of molecular sieve adsorption tower of oxygen generator, such as Figure 2-5The figure shows a molecular sieve adsorption tower 1, an upper end cover assembly 2 with a valve nitrogen exhaust port 15, a silencer shell 3, a lower end cover assembly 5 and an oxygen storage tank assembly 6. The silencer shell 3 and the upper end cover assembly 2 together form a silencer chamber 4, and the silencer chamber 4 is filled with silencer cotton 7. The utility model provides an external interface of a modular structural system of a molecular sieve adsorption tower for an oxygen generator, which has an air inlet 8, a nitrogen exhaust outlet 9, an oxygen outlet 10, and a pressure test port 11 for the molecular sieve adsorption tower module. The silencer chamber is provided with an air inlet 8 and a nitrogen exhaust outlet 9. The nitrogen exhaust outlet 9 is connected to a nitrogen exhaust muffler. The silencer shell 3 is designed as a separate body from the upper end cover assembly 2, and is assembled and fixed as an integral module. The module is detachably installed with the molecular sieve adsorption tower 1, and is fixed by existing detachable connection methods such as threaded connection, plug-in or snap-on connection, which is convenient for installation and maintenance.

[0024] according to Figure 3 In the gas circuit design, the gas enters the valve inlet 16 through the molecular sieve adsorption tower module air inlet 8, and the gas is input from the valve outlet 12 to the molecular sieve adsorption tower 1 on one side to adsorb nitrogen. The remaining oxygen is input into the oxygen storage tank 6 after passing through the gas block 13 and the one-way valve plate 14, and the oxygen is output after being reduced in pressure by the pressure reducing valve. The gas block 13 and the one-way valve plate 14 are both arranged in the lower end cover assembly 5, avoiding external pipelines, improving the reliability of the gas circuit, and making the oxygen generator more integrated. At the same time, the molecular sieve adsorption tower 1 on the other side releases nitrogen through the valve nitrogen exhaust port 15 to be discharged into the closed silencer chamber 4 of the upper end cover assembly 2. The silencer chamber 4 is filled with silencer cotton 7. After the gas fills the silencer chamber 4, it is discharged through the nitrogen exhaust port 9. This port can be externally connected to a nitrogen exhaust silencer. Figure 5-6 shown.

[0025] During the nitrogen exhaust process of the utility model, the partially enclosed cavity of the upper end cover assembly is filled with silencer cotton. After the gas fills the partially enclosed cavity of the upper end cover, it is discharged through the nitrogen exhaust port, and this port can be externally connected to a nitrogen exhaust muffler. During the nitrogen exhaust process, the partially enclosed cavity passing through the upper end cover is equivalent to a first-level gas volume, and is filled with silencer cotton, which has a good silencer effect. The sound of the discharged nitrogen impacting the valve occurs in the partially enclosed cavity of the upper end cover, which has a good sound insulation effect. Because this structural form has a good silencer and sound insulation effect, it plays a great role in reducing the nitrogen exhaust noise during the operation of the oxygen generator.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the embodiments, a person skilled in the art should understand that any modification or equivalent replacement of the technical solution of the utility model does not deviate from the spirit and scope of the technical solution of the utility model, and should be included in the scope of the claims of the utility model.

Claims

1. A modular structure system of a molecular sieve adsorption tower for an oxygen generator, comprising a molecular sieve adsorption tower (1) and an upper end cover assembly (2) having a valve nitrogen discharge port (15), It is characterized in that The modular structural system further comprises a silencer shell (3), wherein the silencer shell (3) and the upper end cover assembly (2) together form a silencer chamber (4), and the silencer chamber (4) is provided with an air inlet (8) and a nitrogen exhaust outlet (9).

2. The modular structure system of molecular sieve adsorption tower for oxygen generator according to claim 1, It is characterized in that The silencing cavity (4) is filled with silencing cotton (7).

3. The modular structure system of molecular sieve adsorption tower for oxygen generator according to claim 1, It is characterized in that The nitrogen exhaust outlet (9) is connected to the nitrogen exhaust muffler through a nitrogen exhaust nozzle and a pipeline.

4. The modular structure system of molecular sieve adsorption tower for oxygen generator according to claim 1, It is characterized in that The silencer shell (3) and the upper end cover assembly (2) are fixedly connected to form an integrated structure, and the structural assembly and the molecular sieve adsorption tower (1) can be detachably installed.

5. The modular structure system of molecular sieve adsorption tower for oxygen generator according to claim 1, It is characterized in that The system further comprises a lower end cover assembly (5) arranged at the bottom, wherein an air block (13) and a one-way valve plate (14) are arranged in the lower end cover assembly (5).

6. An oxygen concentrator, It is characterized in that The oxygen generator comprises the oxygen generator molecular sieve adsorption tower modular structure system according to any one of claims 1-5.

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