Oxygen generator

Abstract

The utility model relates to an oxygen generator. The device comprises a shell, a first adsorption assembly and a second adsorption assembly are arranged in the shell, each adsorption assembly comprises at least one molecular sieve with a first air inlet pipe and an oxygen outlet pipe, a third valve is arranged on the first air inlet pipe, and a first valve is arranged on the oxygen outlet pipe. A discharge pipe with an exhaust valve is arranged on the first gas inlet pipe between the third valve and the molecular sieve, a desorption gas inlet pipe with a desorption gas inlet valve is arranged on the oxygen outlet pipe between the first valve and the molecular sieve, and the desorption gas inlet pipe is connected with a desorption fan; the first air inlet pipes of the first adsorption assembly and the second adsorption assembly are connected with the main air inlet pipe. According to the utility model, the purity of supplied oxygen can be improved, the quality of ozone can be improved, and the service life of the ozone generator can be prolonged. In addition, through the desorption fan and the pipeline connected with the desorption fan, the molecular sieve can be purified and used for carrying out the oxygen production process again.

Description

Technical Field

[0001] The utility model relates to an oxygen generator, in particular to an oxygen generator used for an ozone generator. Background Art

[0002] Oxygen generator is a type of machine that produces oxygen. Its principle is to use air separation technology. First, the air is compressed at a high density, and then the different condensation points of the components in the air are used to separate the gas and liquid at a certain temperature, and then distilled to separate it into oxygen and nitrogen. At present, when ozone processing is carried out, the air is generally directly sent into the ozone generator for treatment. Since there are many other gases and even dust in the air, this not only affects the quality of the gas entering the ozone generator, and then affects the ozone production efficiency, these gases or tiny particles may also corrode the ozone generator, affecting the service life of the ozone generator. Summary of the invention

[0003] The utility model aims to design an oxygen generator, in particular an oxygen generator for pre-treating air when producing ozone.

[0004] The utility model comprises a shell, wherein a first adsorption assembly and a second adsorption assembly are arranged inside the shell, each adsorption assembly comprises at least one molecular sieve with a first air inlet pipe and an oxygen air outlet pipe, a third valve is arranged on the first air inlet pipe, a first valve is arranged on the oxygen air outlet pipe, an exhaust pipe with an exhaust valve is arranged on the first air inlet pipe between the third valve and the molecular sieve, a desorption air inlet pipe with a desorption air inlet valve is arranged on the oxygen air outlet pipe between the first valve and the molecular sieve, and the desorption air inlet pipe is connected to a desorption fan; and the first air inlet pipes of the first adsorption assembly and the second adsorption assembly are connected to a total air inlet pipe.

[0005] Furthermore, at least one of the first adsorption component and the second adsorption component includes at least two molecular sieves, and each molecular sieve is connected in sequence by a connecting pipe with a second valve. A desorption inlet pipe branch with an intermediate desorption valve is arranged between each second valve and the upper molecular sieve, and each desorption inlet pipe branch is connected to the desorption inlet pipe.

[0006] Furthermore, the desorption fans in the first adsorption assembly and the second adsorption assembly are respectively arranged on the outer wall of the shell, and the desorption air inlet pipe connected to the desorption fan is located outside the shell.

[0007] Furthermore, the desorption air inlet pipes in the first adsorption assembly and the second adsorption assembly are the same pipe, and the pipe is connected to a desorption fan.

[0008] The utility model can perform preliminary separation of oxygen from dust, nitrogen, carbon dioxide, and water vapor in the air. On the one hand, it can improve the purity of oxygen supplied to the ozone generator. On the other hand, it can reduce the corrosion of dust, nitrogen, carbon dioxide, water vapor, etc. entering the ozone generator to the equipment. This can not only improve the quality of ozone, but also extend the service life of the ozone generator. In addition, the dust, nitrogen, carbon dioxide, and water vapor adsorbed by the molecular sieve can be desorbed through the desorption fan and the pipeline connected thereto, thereby purifying the molecular sieve to be used again in the oxygen production process. In the utility model, the first adsorption component and the second adsorption component can perform oxygen production and desorption in turn, thereby ensuring that oxygen can be continuously supplied to the ozone generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a partial cross-sectional view of Embodiment 1 of the present utility model;

[0010] Figure 2 for Figure 1 AA view;

[0011] Figure 3 is a partial cross-sectional view of Example 2;

[0012] Figure 4 for Figure 3 BB view;

[0013] Among them, 1. outer shell, 2. first molecular sieve, 3. second molecular sieve, 4. main air inlet pipe, 5. first air inlet pipe, 6. third valve, 7. connecting pipe, 8. second valve, 9. oxygen outlet pipe, 10. first valve, 11. exhaust pipe, 12. exhaust valve, 13. desorption air inlet valve, 14. desorption air inlet pipe, 15. second desorption air inlet branch pipe, 16. intermediate desorption valve, 17. desorption fan, 18. first desorption air inlet branch pipe. DETAILED DESCRIPTION Example 1

[0014] like Figure 1 , Figure 2 As shown, this embodiment includes a shell 1, in which a first adsorption component and a second adsorption component are arranged side by side. The structures of the first adsorption component and the second adsorption component are symmetrical. Here, the structure of the first adsorption component is described as an example.

[0015] The first adsorption assembly includes a first molecular sieve 2 at the bottom and a second molecular sieve 3 at the top. More levels of molecular sieves can be provided as required.

[0016] The inner cavities of the first molecular sieve 2 and the second molecular sieve 3 are connected by a connecting pipe 7, on which a second valve 8 is provided. The connecting pipe 7 between the first molecular sieve 2 and the second valve 8 is connected to a second desorption inlet branch pipe 15 with an intermediate desorption valve 16.

[0017] The upper end of the second molecular sieve 3 is provided with an oxygen outlet pipe 9, on which a first valve 10 is arranged. The oxygen outlet pipe 9 between the first valve 10 and the second molecular sieve 3 is connected to a first desorption air inlet branch pipe 18 with a desorption air inlet valve 13. The first valve 10 and the first desorption air inlet branch pipe 18 with a desorption air inlet valve 13 are located outside the outer shell 1. The second desorption air inlet branch pipe 15 passes through the outer shell 1 in a direction away from the second adsorption component, and it and the first desorption air inlet branch pipe 18 are both connected to the desorption air inlet pipe 14. A desorption fan 17 is installed on the outer wall of the outer shell 1 through a bracket, and the desorption air inlet pipe 14 and the desorption fan 17 are installed.

[0018] A first air inlet pipe 5 is provided below the first molecular sieve 2 and connected thereto, and a third valve 6 is provided on the first air inlet pipe 5. The first air inlet pipe 5 between the third valve 6 and the first molecular sieve 2 is connected to an exhaust pipe 11 with an exhaust valve 12.

[0019] In this embodiment, the first air inlet pipes of the first adsorption assembly and the second adsorption assembly are both connected to the main air inlet pipe 4. The first adsorption assembly and the second adsorption assembly have their own desorption air inlet pipes, and their own desorption fans are connected to the corresponding desorption air inlet pipes. Example 2

[0020] like Figure 3 , Figure 4 As shown, this embodiment includes a shell 1, in which a first adsorption assembly and a second adsorption assembly are arranged side by side. The structures of the first adsorption assembly and the second adsorption assembly are symmetrical. They have the same first molecular sieve 2 and second molecular sieve 3 as in Example 1, and have the same structure as a first air intake pipe 5 with a third valve 6, a main air intake pipe 4, an exhaust pipe 11 with an exhaust valve 12, a connecting pipe 7 with a second valve 8, and an oxygen outlet pipe 9 with a first valve 10.

[0021] In this embodiment, there is a second desorption air intake branch pipe 15 with an intermediate desorption valve 16 and a first desorption air intake branch pipe 18 with a desorption air intake valve 13, which are connected in the same manner as the connecting pipe 7. The difference is that each first desorption air intake branch pipe 15 and each second desorption air intake branch pipe 13 of the first adsorption assembly and the second adsorption assembly extend to the same side of the housing 1 and are connected to the same desorption air intake pipe 14, which is connected to the same desorption fan 17.

[0022] When the above embodiments are in operation, the first adsorption assembly and the second adsorption assembly can produce oxygen at the same time or desorb at the same time as needed. It is also possible that when one adsorption assembly produces oxygen, the other adsorption assembly desorbs oxygen, thereby realizing connected oxygen production.

[0023] Taking the first adsorption component as an example, when producing oxygen, the main air intake pipe 4 is connected to the external fan, the first valve 10, the second valve 8 and the third valve 6 are opened, the desorption air intake valve 13, the intermediate desorption valve 16, the exhaust valve 12 and the desorption fan 17 are closed, and the gas entering from the main air intake pipe 4 passes through the first air intake pipe 5 and then enters the first molecular sieve 2 and the second molecular sieve 3 in sequence, and the produced oxygen is sent out from the oxygen outlet pipe 9. During desorption, the first valve 10, the second valve 8 and the third valve 6 are closed, the desorption air intake valve 13, the intermediate desorption valve 16, the exhaust valve 12 and the desorption fan 17 are opened, and the gas is blown into each molecular sieve through the desorption air intake pipe 14, the first desorption air intake branch pipe 18 and the second desorption air intake branch pipe 15 to desorb the relevant impurities, and the gas with impurities is discharged from the exhaust pipe 11.

Claims

1. An oxygen concentrator, comprising a housing, characterized in that: A first adsorption assembly and a second adsorption assembly are arranged inside the shell, each of the adsorption assemblies comprises at least one molecular sieve with a first air inlet pipe and an oxygen air outlet pipe, a third valve is arranged on the first air inlet pipe, a first valve is arranged on the oxygen air outlet pipe, an exhaust pipe with an exhaust valve is arranged on the first air inlet pipe between the third valve and the molecular sieve, a desorption air inlet pipe with a desorption air inlet valve is arranged on the oxygen air outlet pipe between the first valve and the molecular sieve, and the desorption air inlet pipe is connected to the desorption fan; the first air inlet pipes of the first adsorption assembly and the second adsorption assembly are connected to the main air inlet pipe.

2. The oxygen concentrator according to claim 1, characterized in that: At least one of the first adsorption assembly and the second adsorption assembly includes at least two molecular sieves, and each molecular sieve is connected in sequence by a connecting pipe with a second valve. A desorption inlet pipe branch with an intermediate desorption valve is arranged between each second valve and the upper molecular sieve, and each desorption inlet pipe branch is connected to the desorption inlet pipe.

3. The oxygen concentrator according to claim 1 or 2, characterized in that: The desorption fans in the first adsorption assembly and the second adsorption assembly are respectively arranged on the outer wall of the shell, and the desorption air inlet pipe connected to the desorption fan is located outside the shell.

4. The oxygen concentrator according to claim 3, characterized in that: The desorption air inlet pipes in the first adsorption assembly and the second adsorption assembly are the same pipe, and the pipe is connected to a desorption fan.

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