Integrated nitrogen-oxygen separation system for oxygen generator

Abstract

The utility model discloses an integrated nitrogen-oxygen separation system for an oxygen generator, which comprises a mounting seat, two molecular sieve tanks and an oxygen storage tank, wherein the two molecular sieve tanks are inserted on the mounting seat and are used for separating nitrogen and oxygen in air, and the oxygen storage tank is arranged between the molecular sieve tanks; an air passing channel communicated with the molecular sieve tanks and the oxygen storage tank is formed in the mounting seat, the molecular sieve tanks alternately work, one molecular sieve tank forces air to be separated and drives oxygen to enter the oxygen storage tank along the air passing channel, and part of the oxygen enters the other molecular sieve tank along the air passing channel. And the nitrogen in the other molecular sieve tank is forced to be discharged.

Description

Technical Field

[0001] The utility model relates to the technical field of oxygen generators, in particular to an integrated nitrogen and oxygen separation system for oxygen generators. 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. In general, since it is mostly used to produce oxygen, people are accustomed to calling it an oxygen generator. Since oxygen and nitrogen have a wide range of uses, oxygen generators are also widely used in the national economy.

[0003] Currently, the main method for preparing oxygen is the molecular sieve adsorption method. However, the existing molecular sieve oxygen production method generally separates the air through a single molecular sieve tank, resulting in low separation efficiency, which affects the user experience. Utility Model Content

[0004] In order to solve the technical problems existing in the background technology, the utility model proposes an integrated nitrogen and oxygen separation system for an oxygen generator.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] An integrated nitrogen-oxygen separation system for an oxygen generator comprises a mounting seat, on which two molecular sieve tanks for separating nitrogen and oxygen in the air are inserted, and an oxygen storage tank arranged between the molecular sieve tanks;

[0007] The mounting seat is provided with a gas passage connecting the molecular sieve tank and the oxygen storage tank. The molecular sieve tanks work alternately. One molecular sieve tank forces air separation and drives oxygen into the oxygen storage tank along the gas passage, and part of the oxygen enters another molecular sieve tank along the gas passage, forcing the nitrogen in the other molecular sieve tank to be discharged.

[0008] Preferably, a mounting groove is formed on the mounting seat for the molecular sieve tank and the oxygen storage tank to be placed in. Through the above improvements, the molecular sieve tank and the oxygen storage tube are placed in the mounting groove, which ensures the stability of the installation of the molecular sieve tank and the oxygen storage tube and improves the air tightness.

[0009] Preferably, the air passage is formed with a first air hole connected to the molecular sieve tank and a second air hole connected to the oxygen storage tank. Through the above improvements, when a molecular sieve tank starts to work, oxygen flows into the air passage from the first air hole at the bottom of the molecular sieve tank, most of the oxygen enters the deoxygenation tank through the second air hole, and a small part of the oxygen flows into the other molecular sieve tank through the first air hole, and pushes out the nitrogen in the other molecular sieve tank, and the two molecular sieve tanks work alternately to achieve uninterrupted oxygen supply.

[0010] Preferably, the second air hole is larger than the first air hole. Through the above improvement, since the second air hole is larger than the first air hole, most of the oxygen can enter the oxygen storage tank through the second air hole, and a small part of the oxygen can enter another molecular sieve tank through the first air hole.

[0011] Preferably, the air passage runs through the entire mounting seat, and plugs are provided at both ends of the air passage. Through the above improvements, the plugs can be disassembled to clean the air passage, making daily maintenance and care more convenient.

[0012] Preferably, the molecular sieve tank is provided with an air pipe for introducing air and discharging nitrogen. Through the above improvements, the air pipe can be connected to a three-way air pipe joint, and the three-way air pipe structure can be used to connect not only an air intake pipe for introducing air, but also an exhaust pipe for discharging nitrogen.

[0013] Preferably, a reversing valve is provided between the molecular sieve tanks, and the reversing valve is connected to the air pipe so that the molecular sieve tanks can work alternately. Through the above improvement, the reversing valve connects the two molecular sieve tanks through the air inlet pipe, and the reversing valve is used to realize the alternating work of the two molecular sieve tanks.

[0014] Preferably, the nitrogen exhaust end of the air pipe is connected to a nitrogen exhaust muffler. Through the above improvements, the noise of nitrogen exhaust is reduced and the user experience is improved.

[0015] Preferably, the molecular sieve tank is provided with a first sieve plate and a second sieve plate, the first sieve plate and the second sieve plate form an installation space for placing the molecular sieve, and the first sieve plate and the second sieve plate are formed with vents. Through the above improvements, the first sieve plate and the second sieve plate can fix the molecular sieve from both ends, and the gas can enter and exit through the vents, thereby improving the stability of the molecular sieve installation.

[0016] Preferably, an elastic element is provided between the molecular sieve tank and the first sieve plate. Through the above improvement, the distance between the first sieve plate and the second sieve plate can be adjusted to match molecular sieves of different capacities.

[0017] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0018] By working alternately with two molecular sieve tanks, when one molecular sieve tank is working, most of the air will enter the oxygen storage tube, and a small part of the oxygen will enter the other molecular sieve tank. Therefore, when the two molecular sieve tanks work alternately, the oxygen production time of the other molecular sieve tube can be reduced, thereby improving the oxygen production efficiency and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the molecular sieve tank and the oxygen storage tank of the utility model;

[0021] Figure 3 It is a cross-sectional view of the molecular sieve tank and the oxygen storage tank of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the mounting seat of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the first screen plate of the utility model;

[0024] In the figure: 1, mounting seat; 2, molecular sieve tank; 3, oxygen storage tank; 4, air passage; 5, reversing valve; 6, nitrogen exhaust silencer; 101, mounting groove; 102, first air hole; 103, second air hole; 104, plug; 105, air pipe; 201, first sieve plate; 202, second sieve plate; 203, mounting space; 204, air vent; 205, elastic element; DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] It should be understood that although the terms upper, middle, lower, top, end, etc. appear in this article to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish elements from each other for easy understanding, and are not used to define any direction or order limitation.

[0027] like Figure 1-5As shown, an integrated nitrogen and oxygen separation system for an oxygen concentrator comprises a mounting base 1, on which two molecular sieve tanks 2 for separating nitrogen and oxygen in the air are inserted, and an oxygen storage tank 3 arranged between the molecular sieve tanks 2;

[0028] Among them, a gas passage 4 connecting the molecular sieve tank 2 and the oxygen storage tank 3 is formed in the mounting base 1, and the molecular sieve tanks 2 work alternately. One molecular sieve tank 2 forces the air to separate and drives the oxygen to enter the oxygen storage tank 3 along the gas passage 4, and part of the oxygen enters the other molecular sieve tank 2 along the gas passage 4, and forces the nitrogen in the other molecular sieve tank 2 to be discharged.

[0029] Specifically, in the oxygen production process, in the first cycle, compressed air is input into the first molecular sieve tank 2. When the pressure reaches 100-140 kPa, the molecular sieve absorbs nitrogen. Most of the oxygen enters the oxygen storage tank 3 through the gas passage 4, and is finally output to the flow regulating valve through the pressure reducing valve and finally output from the oxygen outlet. In addition, a small part of the oxygen is blown to the second molecular sieve tank 2 through the gas passage 4 to push out the nitrogen in the molecular sieve. In the second cycle, the two molecular sieve tanks 2 work alternately, and compressed air enters the second molecular sieve tank 2. When the pressure reaches 100-140 kPa, the molecular sieve absorbs nitrogen. Most of the oxygen enters the oxygen storage tank 3 through the gas passage 4, and is finally output to the flow regulating valve through the pressure reducing valve and finally output from the oxygen outlet. A small part of the oxygen enters the first molecular sieve tank 2 through the gas passage 4 and pushes out the nitrogen in the first molecular sieve. In this way, the first cycle and the second cycle are infinitely switched back and forth to achieve the effect of continuous oxygen output.

[0030] By operating the two molecular sieve tanks 2 alternately, when one molecular sieve tank 2 is working, most of the air will enter the oxygen storage tube, and a small part of the oxygen will enter the other molecular sieve tank 2. Therefore, when the two molecular sieve tanks 2 operate alternately, the oxygen production time of the other molecular sieve tube can be reduced, thereby improving the oxygen production efficiency and enhancing the user experience.

[0031] like Figure 1-5 As shown, a further explanation of the implementation method of the mounting seat 1 in this embodiment is provided, wherein a mounting groove 101 is formed on the mounting seat 1 for inserting the molecular sieve tank 2 and the oxygen storage tank 3, the molecular sieve tank 2 and the oxygen storage tube are inserted into the mounting groove 101, and are locked on the mounting seat 1, thereby ensuring the stability of the installation of the molecular sieve tank 2 and the oxygen storage tube and improving the air tightness.

[0032] In addition, a sealing ring may be provided at the matching portion between the mounting seat 1 and the molecular sieve tank 2 and the oxygen storage tank 3 to further increase the air tightness.

[0033] Furthermore, a first air hole 102 connected to the molecular sieve tank 2 and a second air hole 103 connected to the oxygen storage tank 3 are formed in the air passage 4. When a molecular sieve tank 2 starts to work, oxygen flows into the air passage 4 from the first air hole 102 at the bottom of the molecular sieve tank 2, most of the oxygen enters the deoxygenation tank through the second air hole 103, and a small part of the oxygen flows into the other molecular sieve tank 2 through the first air hole 102, and pushes out the nitrogen in the other molecular sieve tank 2. The two molecular sieve tanks 2 work alternately to achieve uninterrupted oxygen supply.

[0034] Specifically, the second air hole 103 is larger than the first air hole 102 . Since the second air hole 103 is larger than the first air hole 102 , most of the oxygen can enter the oxygen storage tank 3 through the second air hole 103 , and a small part of the oxygen can enter another molecular sieve tank 2 through the first air hole 102 .

[0035] Preferably, the air passage 4 runs through the entire mounting base 1 , and plugs 104 are provided at both ends of the air passage 4 , and the plugs 104 can be disassembled to clean the air passage 4 , making daily maintenance and care more convenient.

[0036] like Figure 1-5 As shown, a further explanation of the implementation method of the molecular sieve tank 2 in this embodiment is provided on the molecular sieve tank 2. An air pipe 105 for introducing air and discharging nitrogen is formed. The air pipe 105 can be connected to a three-way air pipe joint. The three-way air pipe structure can be used to connect not only an air intake pipe for introducing air, but also an exhaust pipe for discharging nitrogen.

[0037] Specifically, a reversing valve 5 is provided between the molecular sieve tanks 2, and the reversing valve 5 is connected to the air pipe 105 so that the molecular sieve tanks 2 can work alternately. The reversing valve 5 connects the two molecular sieve tanks 2 through the air inlet pipe, and the reversing valve 5 is used to realize the alternating operation of the two molecular sieve tanks 2.

[0038] In addition, the nitrogen exhaust end of the air pipe 105 is connected to a nitrogen exhaust silencer 6, which reduces the noise of nitrogen exhaust and improves the user experience.

[0039] Furthermore, a first sieve plate 201 and a second sieve plate 202 are provided inside the molecular sieve tank 2, and an installation space 203 for placing the molecular sieve is formed between the first sieve plate 201 and the second sieve plate 202, and ventilation holes 204 are formed on the first sieve plate 201 and the second sieve plate 202. The first sieve plate 201 and the second sieve plate 202 can fix the molecular sieve from both ends, and gas can enter and exit through the ventilation holes 204, thereby improving the stability of the molecular sieve installation.

[0040] An elastic element 205 is provided between the molecular sieve tank 2 and the first sieve plate 201, so as to adjust the distance between the first sieve plate 201 and the second sieve plate 202, so as to match molecular sieves of different capacities.

[0041] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. An integrated nitrogen and oxygen separation system for an oxygen generator, characterized in that: It comprises a mounting seat (1), on which two molecular sieve tanks (2) for separating nitrogen and oxygen in the air are inserted, and an oxygen storage tank (3) arranged between the molecular sieve tanks (2); The mounting seat (1) is provided with a gas passage (4) connecting the molecular sieve tank (2) and the oxygen storage tank (3). The molecular sieve tanks (2) work alternately. One molecular sieve tank (2) forces air separation and drives oxygen into the oxygen storage tank (3) along the gas passage (4). Part of the oxygen enters another molecular sieve tank (2) along the gas passage (4) and forces nitrogen in the other molecular sieve tank (2) to be discharged. The gas passage (4) is provided with a first gas passage hole (102) connecting the molecular sieve tank (2) and a second gas passage hole (103) connecting the oxygen storage tank (3).

2. The integrated nitrogen and oxygen separation system for an oxygen generator according to claim 1, characterized in that: The mounting seat (1) is formed with a mounting groove (101) for the molecular sieve tank (2) and the oxygen storage tank (3) to be placed therein.

3. The integrated nitrogen and oxygen separation system for an oxygen generator according to claim 1, characterized in that: The second air hole (103) is larger than the first air hole (102).

4. The integrated nitrogen and oxygen separation system for an oxygen generator according to claim 1, characterized in that: The air passage (4) runs through the entire mounting seat (1), and plugs (104) are provided at both ends of the air passage (4).

5. The integrated nitrogen and oxygen separation system for an oxygen generator according to claim 1, characterized in that: The molecular sieve tank (2) is provided with an air passage (105) for introducing air and discharging nitrogen.

6. The integrated nitrogen and oxygen separation system for an oxygen generator according to claim 5, characterized in that: A reversing valve (5) is provided between the molecular sieve tanks (2), and the reversing valve (5) is connected to the gas pipe (105) so that the molecular sieve tanks (2) can work alternately.

7. The integrated nitrogen and oxygen separation system for an oxygen generator according to claim 5, characterized in that: The nitrogen exhaust end of the gas passage pipe (105) is connected to a nitrogen exhaust muffler (6).

8. The integrated nitrogen and oxygen separation system for an oxygen generator according to claim 1, characterized in that: A first sieve plate (201) and a second sieve plate (202) are provided inside the molecular sieve tank (2); an installation space (203) for placing the molecular sieve is formed between the first sieve plate (201) and the second sieve plate (202); and ventilation holes (204) are formed on the first sieve plate (201) and the second sieve plate (202).

9. The integrated nitrogen and oxygen separation system for an oxygen generator according to claim 2, characterized in that: An elastic element (205) is provided between the molecular sieve tank (2) and the first sieve plate (201).

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