High-pressure high-concentration oxygen generator

Abstract

The utility model relates to the technical field of oxygenerators, in particular to a high-pressure high-concentration oxygenerator which comprises a freezing dryer, an air compressor, at least two molecular sieve modules, an oxygen storage tank, a booster pump and an oxygen output port, each molecular sieve module comprises a primary molecular sieve for adsorbing oxygen and a secondary molecular sieve for adsorbing nitrogen, the output end of the air compressor is connected with the input end of the first-stage molecular sieve in each molecular sieve module, and the input end of the second-stage molecular sieve in each molecular sieve module is connected with the output end of the first-stage molecular sieve in the same molecular sieve module. The output end of the secondary molecular sieve in each molecular sieve module is connected with the input end of the oxygen storage tank; the booster pump is connected in series between the output end of the oxygen storage tank and the oxygen output port; according to the oxygen generator, the oxygen output pressure can reach 4 bar, the application scene of high-pressure oxygen supply can be met, high-concentration oxygen can be produced, and the defects of an existing traditional oxygen generator can be overcome.

Description

Technical Field:

[0001] The utility model relates to the technical field of oxygen generators, in particular to a high-pressure and high-concentration oxygen generator. Background Art:

[0002] An oxygen generator is a kind of machine for producing oxygen. The common working principle of an oxygen generator is: using molecular sieve physical adsorption and desorption technology. That is, molecular sieve is filled in the oxygen generator, and when pressurized, nitrogen in the air can be adsorbed by it, and the remaining unabsorbed oxygen is collected and becomes high-purity oxygen after purification treatment.

[0003] Although the existing traditional oxygen generators can meet most application scenarios, the existing traditional oxygen generators generally still adopt a low-pressure oxygen supply method, and the output pressure of the existing traditional oxygen generators is generally only ≤ 1 bar, which cannot meet some application scenarios that require high-pressure oxygen supply and has certain limitations. In addition, in some application scenarios, it is necessary to prepare oxygen with a higher concentration, and the existing traditional oxygen generators cannot meet the usage requirements. There is an urgent need for a high-pressure oxygen generator that can prepare oxygen with a higher concentration. Summary of the Utility Model:

[0004] The purpose of the utility model is to provide a high-pressure and high-concentration oxygen generator aiming at the deficiencies of the existing technology. The oxygen output pressure can reach 4 bar, which can meet the application scenarios of high-pressure oxygen supply, can produce high-concentration oxygen, and can make up for the deficiencies of the existing traditional oxygen generators.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is: a high-pressure and high-concentration oxygen generator, including a cold dryer, an air compressor, at least two molecular sieve modules, an oxygen storage tank, a booster pump, and an oxygen output port. Each of the molecular sieve modules respectively includes a primary molecular sieve for adsorbing oxygen and a secondary molecular sieve for adsorbing nitrogen. The output end of the cold dryer is connected to the input end of the air compressor, the output end of the air compressor is respectively connected to the input ends of the primary molecular sieves in each molecular sieve module, the input ends of the secondary molecular sieves in each molecular sieve module are respectively connected to the output ends of the primary molecular sieves in the same molecular sieve module, the output ends of the secondary molecular sieves in each molecular sieve module are respectively connected to the input end of the oxygen storage tank, and the booster pump is connected in series between the output end of the oxygen storage tank and the oxygen output port.

[0006] For further improvement of the above solution, the utility model further includes a cabinet, and the cold dryer, the air compressor, each molecular sieve module, the oxygen storage tank, the booster pump, and the oxygen output port are respectively arranged in the cabinet.

[0007] For further improvement of the above solution, casters are provided at the bottom of the cabinet.

[0008] A further improvement to the above solution is that an oxygen pressure gauge for displaying the oxygen output pressure value is provided on the cabinet.

[0009] A further improvement to the above solution is that an oxygen concentration meter for displaying the oxygen output concentration is provided on the cabinet.

[0010] A further improvement to the above solution is that a power indicator light and a working status indicator light are provided on the cabinet.

[0011] A further improvement to the above solution is that a working switch and an emergency stop switch are provided on the cabinet.

[0012] A further improvement to the above solution is that the cabinet includes a cabinet body and a cabinet door that can be opened and closed on the cabinet body.

[0013] A further improvement to the above solution is that the primary molecular sieve is an oxygen absorption molecular sieve adsorption tower, and the secondary molecular sieve is a nitrogen absorption molecular sieve adsorption tower.

[0014] The beneficial effects of the present utility model are as follows: A high-pressure and high-concentration oxygen generator provided by the present utility model includes a cold dryer, an air compressor, at least two molecular sieve modules, an oxygen storage tank, a booster pump, and an oxygen output port. Each of the molecular sieve modules includes a primary molecular sieve for adsorbing oxygen and a secondary molecular sieve for adsorbing nitrogen. The output end of the cold dryer is connected to the input end of the air compressor, the output end of the air compressor is respectively connected to the input ends of the primary molecular sieves in each molecular sieve module, the input ends of the secondary molecular sieves in each molecular sieve module are respectively connected to the output ends of the primary molecular sieves in the same molecular sieve module, the output ends of the secondary molecular sieves in each molecular sieve module are respectively connected to the input end of the oxygen storage tank, and the booster pump is connected in series between the output end of the oxygen storage tank and the oxygen output port;

[0015] Compared with the existing traditional oxygen generators, by connecting a booster pump in series between the output end of the oxygen storage tank and the oxygen output port, the present utility model can make the oxygen output pressure reach 4 bar, so as to meet the application scenarios of high-pressure oxygen supply. When separating and purifying oxygen, the primary molecular sieve is first used to preliminarily separate and purify oxygen, and then the secondary molecular sieve is used to further separate and purify oxygen, so as to produce high-concentration oxygen, thus meeting the application scenarios of high-concentration oxygen. The present utility model can make up for the deficiencies of the existing traditional oxygen generators. Description of the Drawings:

[0016] Figure 1 It is a structural schematic diagram of the present utility model.

[0017] Figure 2 It is a working principle block diagram of the present utility model.

[0018] Description of reference numerals: Refrigerated dryer 1, air compressor 2, molecular sieve module 3, primary molecular sieve 31, secondary molecular sieve 32, oxygen storage tank 4, booster pump 5, oxygen outlet 6, cabinet 7, cabinet body 71, cabinet door 72, casters 8, oxygen pressure gauge 9, oxygen concentration meter 10, power indicator light 11, working status indicator light 12, working switch 13, emergency stop switch 14. Detailed implementation manners:

[0019] The following further describes the present utility model in conjunction with the attached drawings. As Figure 1-2 shown, the present utility model includes a refrigerated dryer 1, an air compressor 2, at least two molecular sieve modules 3, an oxygen storage tank 4, a booster pump 5, and an oxygen outlet 6. Each of the molecular sieve modules 3 includes a primary molecular sieve 31 for adsorbing oxygen and a secondary molecular sieve 32 for adsorbing nitrogen. The output end of the refrigerated dryer 1 is connected to the input end of the air compressor 2, and the output end of the air compressor 2 is respectively connected to the input ends of the primary molecular sieves 31 in each molecular sieve module 3. The input ends of the secondary molecular sieves 32 in each molecular sieve module 3 are respectively connected to the output ends of the primary molecular sieves 31 in the same molecular sieve module 3. The output ends of the secondary molecular sieves 32 in each molecular sieve module 3 are respectively connected to the input end of the oxygen storage tank 4. The booster pump 5 is connected in series between the output end of the oxygen storage tank 4 and the oxygen outlet 6. Compared with the existing traditional oxygen generator, by connecting the booster pump 5 in series between the output end of the oxygen storage tank 4 and the oxygen outlet 6, the present utility model can make the oxygen output pressure reach 4 bar, so as to meet the application scenarios of high-pressure oxygen supply. When separating and purifying oxygen, the primary molecular sieve 31 is first used to preliminarily separate and purify oxygen, and then the secondary molecular sieve 32 is used to further separate and purify oxygen, and high-concentration oxygen can be produced, so as to meet the application scenarios of high-concentration oxygen. The present utility model can make up for the deficiencies of the existing traditional oxygen generator.

[0020] The present utility model further includes a cabinet 7, and the refrigerated dryer 1, the air compressor 2, each molecular sieve module 3, the oxygen storage tank 4, the booster pump 5, and the oxygen outlet 6 are respectively arranged in the cabinet 7. Compared with directly exposing each component outside, by arranging each component in the cabinet 7, the present utility model can better prevent each component from being damaged, so as to better ensure continuous oxygen production and supply.

[0021] The bottom of the cabinet 7 is provided with casters 8, and the present utility model can be easily moved and displaced through the casters 8, so as to better adapt to various use occasions.

[0022] An oxygen pressure gauge 9 for displaying the oxygen output pressure value is arranged on the cabinet 7, and the current oxygen output pressure value can be viewed in real time through the oxygen pressure gauge 9.

[0023] On the cabinet 7, there is an oxygen concentration meter 10 for displaying the output concentration of oxygen. Through the oxygen concentration meter 10, the current oxygen concentration can be viewed in real time.

[0024] On the cabinet 7, there are a power indicator light 11 and a working status indicator light 12. Through the power indicator light 11 and the working status indicator light 12, the running status of the current device can be understood.

[0025] On the cabinet 7, there are a working switch 13 and an emergency stop switch 14. In this embodiment, the working switch 13 is a rotary switch, which is not prone to accidental touch. The emergency stop switch 14 can respond quickly and prevent emergencies.

[0026] The cabinet 7 includes a cabinet body 71 and a cabinet door 72 that can be opened and closed on the cabinet body 71. By opening the openable cabinet door 72, it is more convenient to maintain and repair each component inside the cabinet body 71.

[0027] The primary molecular sieve 31 is an oxygen absorption molecular sieve adsorption tower, and the secondary molecular sieve 32 is a nitrogen absorption molecular sieve adsorption tower; through the oxygen absorption molecular sieve adsorption tower, oxygen can be adsorbed, the concentrated nitrogen is discharged from the corresponding exhaust port, and the oxygen after preliminary separation and purification is sent into the nitrogen absorption molecular sieve adsorption tower. Through the nitrogen absorption molecular sieve, nitrogen in the oxygen after preliminary separation and purification can be adsorbed, and the oxygen is further separated and purified to increase the oxygen concentration.

[0028] Working principle:

[0029] The gas sent in is cooled and the contained water vapor is removed by the cold dryer 1. The gas after removing the water vapor is sent into the molecular sieve module 3 for oxygen separation and purification. Through the alternate adsorption and desorption processes between the molecular sieve modules 3, continuous gas supply can be achieved. When separating and purifying oxygen, first, the primary molecular sieve 31 is used to preliminarily separate and purify oxygen, and then the secondary molecular sieve 32 is used to further separate and purify oxygen. The high-concentration oxygen produced is output by the booster pump 5; the oxygen output pressure of the present utility model can reach 4 bar, which can meet the application scenarios of high-pressure oxygen supply, can produce high-concentration oxygen, and can make up for the deficiencies of existing traditional oxygen generators.

[0030] Certainly, the above description is only a preferred embodiment of the present utility model. Therefore, any equivalent changes or modifications made according to the structure, features, and principles described in the scope of the patent application of the present utility model are included in the scope of the patent application of the present utility model.

Claims

1. A high-pressure and high-concentration oxygen concentrator, characterized in that: The invention comprises a cold dryer (1), an air compressor (2), at least two molecular sieve modules (3), an oxygen storage tank (4), a booster pump (5), and an oxygen output port (6); each of the molecular sieve modules (3) comprises a primary molecular sieve (31) for adsorbing oxygen and a secondary molecular sieve (32) for adsorbing nitrogen; the output end of the cold dryer (1) is connected to the input end of the air compressor (2); the output end of the air compressor (2) is connected to the input end of the primary molecular sieve (31) in each molecular sieve module (3); the input end of the secondary molecular sieve (32) in each molecular sieve module (3) is connected to the output end of the primary molecular sieve (31) in the same molecular sieve module (3); the output end of the secondary molecular sieve (32) in each molecular sieve module (3) is connected to the input end of the oxygen storage tank (4); and the booster pump (5) is connected in series between the output end of the oxygen storage tank (4) and the oxygen output port (6).

2. A high-pressure and high-concentration oxygen concentrator according to claim 1, characterized in that: It also includes a cabinet (7), in which the cold dryer (1), the air compressor (2), the molecular sieve modules (3), the oxygen storage tank (4), the booster pump (5), and the oxygen output port (6) are respectively arranged.

3. A high-pressure and high-concentration oxygen concentrator according to claim 2, characterized in that: Casters (8) are provided at the bottom of the cabinet (7).

4. A high-pressure and high-concentration oxygen concentrator according to claim 2, characterized in that: The cabinet (7) is provided with an oxygen pressure gauge (9) for displaying the oxygen output pressure value.

5. A high-pressure and high-concentration oxygen concentrator according to claim 2, characterized in that: The cabinet (7) is provided with an oxygen concentration meter (10) for displaying the oxygen output concentration.

6. A high-pressure and high-concentration oxygen concentrator according to claim 2, characterized in that: The cabinet (7) is provided with a power indicator light (11) and a working status indicator light (12).

7. A high-pressure and high-concentration oxygen concentrator according to claim 2, characterized in that: The cabinet (7) is provided with a working switch (13) and an emergency stop switch (14).

8. A high-pressure and high-concentration oxygen concentrator according to claim 2, characterized in that: The cabinet (7) comprises a cabinet body (71) and a cabinet door (72) which is openable and closable and is arranged on the cabinet body (71).

9. A high-pressure and high-concentration oxygen concentrator according to claim 1, characterized in that: The first-stage molecular sieve (31) is an oxygen-absorbing molecular sieve adsorption tower, and the second-stage molecular sieve (32) is a nitrogen-absorbing molecular sieve adsorption tower.

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