Oxygen generation system

Abstract

The invention relates to an oxygen generation system. The oxygen generation system comprises an air compressor, an air treatment unit and an oxygen treatment unit. The air treatment unit communicates with the air compressor, and the air treatment unit is used for conducting first purification treatment on the compressed air so as to purify water and foreign matter in the air. The oxygen treatment unit comprises an oxygen treatment device, an oxygen storage tank and a purging tank, and the oxygen treatment device selectively communicates with the air treatment unit, the oxygen storage tank and the purging tank; the oxygen treatment device is used for carrying out second purification treatment on the air subjected to the first purification treatment so as to purify other gases except oxygen in the air; the oxygen storage tank is used for storing a part of oxygen output by the oxygen treatment device; and the purging tank is used for storing the other part of oxygen output by the oxygen treatment device. The oxygen generation system provided by the embodiment of the invention is simple in structure and oxygen generation process, the fault occurrence rate is reduced, the oxygen generation efficiency is improved, and the assembly space required by the oxygen generation system can be effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of oxygen production systems, and in particular to an oxygen production system. Background Art

[0002] At present, PSA oxygen generators at home and abroad are generally double-tower oxygen generators. The adsorption tower is divided into two towers, which produce oxygen separately and transport it to the back end. The oxygen generator adopts a double-tower structure, which has a complex process and many pipelines. In addition, the double towers are placed side by side, occupying a large area. Summary of the invention

[0003] Based on this, it is necessary to provide an oxygen production system to solve the above problems.

[0004] An oxygen production system, comprising:

[0005] Air compressor, used to compress outside air;

[0006] an air processing unit, connected to the air compressor, and configured to perform a first purification process on the compressed air to purify moisture and foreign matter in the air;

[0007] The oxygen processing unit comprises an oxygen processing device, an oxygen storage tank and a purge tank, wherein the oxygen processing device can be selectively connected to the air processing unit, the oxygen storage tank and the purge tank; the oxygen processing device is used to perform a second purification process on the air after the first purification process to purify other gases in the air except oxygen; the oxygen storage tank is used to store a part of the oxygen output by the oxygen processing device; and the purge tank is used to store another part of the oxygen output by the oxygen processing device.

[0008] In one embodiment, the oxygen processing unit further includes a first connecting component and a second connecting component, wherein the first connecting component is connected between the oxygen storage tank and the oxygen processing device, and the first connecting component is configured to selectively control the connection between the oxygen storage tank and the oxygen processing device; the second connecting component is connected between the purge tank and the oxygen processing device, and the second connecting component is configured to selectively control the connection between the purge tank and the oxygen processing device.

[0009] In one embodiment, the oxygen processing unit further includes a first exhaust assembly, which is selectively connectable to the oxygen processing device and is used to exhaust other gases purified by the oxygen processing device.

[0010] In one embodiment, the air processing unit includes an air processing device and an air storage tank. The air processing device is connected to the air compressor and is used to perform a first purification process on the compressed air to purify moisture and foreign matter in the air; the air storage tank is connected to the air processing device and is used to store the air output by the air processing device; the air storage tank is also selectively connected to the oxygen processing device.

[0011] In one embodiment, the air treatment device includes a first air processor and a second air processor, and the first air processor and the second air processor are both used to purify moisture in the air;

[0012] The air treatment unit also includes a first input component and a first output component. The first air processor and the second air processor are both connected to the air compressor through the first input component, and the first input component is configured to selectively control the first air processor or the second air processor to be connected to the air compressor; the first air processor and the second air processor are both connected to the air storage tank through the first output component, and the first output component is configured to selectively control the first air processor or the second air processor to deliver the first purified air to the air storage tank.

[0013] In one embodiment, the air handling device further includes a third connecting component, the third connecting component is connected between the first air handler and the second air handler, and the third connecting component is configured to selectively control the airflow direction between the first air handler and the second air handler.

[0014] In one embodiment, the air treatment device also includes a second input component, the first air processor and the second air processor are both connected to the air storage tank through the second input component, and the second input component is configured to selectively control the air storage tank to deliver the air stored therein to the first air processor or the second air processor.

[0015] In one embodiment, the air treatment device further includes a third air processor, the third air processor is connected to the first input component, the third air processor is a refrigerated dryer, and the first air processor and the second air processor are both provided with desiccant.

[0016] In one embodiment, the air treatment device further includes a filter component, which is connected to the first input component and is used to purify foreign matter in the air.

[0017] In one embodiment, the air treatment device further includes a second exhaust assembly, the second exhaust assembly is connected between the first air handler and the second air handler, and the second exhaust assembly is configured to selectively connect to the first air handler or the second air handler.

[0018] The oxygen production system includes an air compressor, an air processing unit and an oxygen processing unit. The air compressor is used to compress the outside air and deliver the compressed air to the air processing unit. The air processing unit is connected to the air compressor, and the air processing unit is used to perform a first purification treatment on the compressed air to purify the moisture and foreign matter in the air. And the air after the first purification treatment will be further delivered to the oxygen processing unit to be further processed by the oxygen processing unit to achieve oxygen preparation. The oxygen processing unit includes an oxygen processing device, an oxygen storage tank and a purge tank, and the oxygen processing device can selectively connect the air processing unit, the oxygen storage tank and the purge tank. The oxygen processing device is used to perform a second purification treatment on the air after the first purification treatment to purify other gases in the air except oxygen. The oxygen storage tank is used to store a part of the oxygen output by the oxygen processing device. The purge tank is used to store another part of the oxygen output by the oxygen processing device. In the specific operation process of the oxygen production system, the air after the first purification treatment will be delivered to the oxygen processing device, and the oxygen processing device can remove other gases in the air except oxygen, thereby preparing oxygen. Afterwards, the oxygen processing device will transport the oxygen to the oxygen storage tank and the purge tank for storage. When the oxygen processing device stops producing oxygen or the adsorbent therein is in a saturated state, it is necessary to disconnect the connection between the oxygen processing device and the air handling unit, and then transport the oxygen stored in the purge tank to the oxygen processing device, so as to use oxygen to purge and analyze the adsorbent, and take the nitrogen discharged from the adsorbent out of the oxygen processing device and discharge it to the outside, so as to restore the adsorption capacity of the adsorbent and ensure the oxygen production efficiency of the oxygen processing device. In this way, the structure and oxygen production process of the oxygen production system provided in the embodiment of the present application are simple, which is conducive to reducing the occurrence rate of failures, improving the oxygen production efficiency, and can effectively reduce the assembly space required for the oxygen production system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the oxygen production system in this application.

[0020] Figure 2 for Figure 1 Schematic diagram of the local enlarged structure of area A in the middle.

[0021] Figure 3 for Figure 1 Schematic diagram of the partial enlarged structure of area B in the middle.

[0022] Figure 4 for Figure 1 Schematic diagram of the partial enlarged structure of area C in the middle.

[0023] Reference numerals

[0024] Oxygen generation system 100;

[0025] Air compressor 10;

[0026] Air handling unit 11; air handling device 111; first air processor 1111; second air processor 1112; third air processor 1113; filter assembly 1114; first input assembly 112; first output assembly 113; third connecting assembly 114; second input assembly 115; second exhaust assembly 116; air storage tank 117;

[0027] Oxygen processing unit 12; oxygen processing device 121; oxygen storage tank 122; purge tank 123; first connecting component 124; second connecting component 125; first exhaust component 126. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0029] In the description of the present application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0030] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this application, if the term "plurality" appears, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] In this application, unless otherwise clearly specified and limited, if the terms "installed", "connected", "connected", "fixed" and the like appear, these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0032] In the present application, unless otherwise clearly specified and limited, if there is a description that a first feature is "above" or "below" a second feature, etc., or similar descriptions appear, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only implementation method.

[0034] See also Figure 1 In one or more embodiments of the present application, an oxygen production system 100 is provided, and the oxygen production system 100 includes an air compressor 10, an air processing unit 11 and an oxygen processing unit 12. The air compressor 10 is used to compress the outside air and transport the compressed air to the air processing unit 11. The air processing unit 11 is connected to the air compressor 10, and the air processing unit 11 is used to perform a first purification treatment on the compressed air to purify moisture and foreign matter in the air. The air after the first purification treatment will be further transported to the oxygen processing unit 12, so as to be further processed by the oxygen processing unit 12 to realize oxygen preparation.

[0035] Specifically, the oxygen processing unit 12 includes an oxygen processing device 121, an oxygen storage tank 122 and a purge tank 123. The oxygen processing device 121 can selectively connect to the air processing unit 11, the oxygen storage tank 122 and the purge tank 123. The oxygen processing device 121 is used to perform a second purification process on the air after the first purification process to purify other gases in the air except oxygen. The oxygen storage tank 122 is used to store a part of the oxygen output by the oxygen processing device 121. The purge tank 123 is used to store another part of the oxygen output by the oxygen processing device 121.

[0036] It is understood that, during the specific operation of the oxygen production system 100, the air after the first purification treatment will be delivered to the oxygen processing device 121, and the oxygen processing device 121 can remove gases other than oxygen in the air, thereby preparing oxygen. Thereafter, the oxygen processing device 121 will deliver the oxygen to the oxygen storage tank 122 and the purge tank 123 for storage.

[0037] It should also be noted that the oxygen processing device 121 usually uses an adsorbent, such as an oxygen-generating molecular sieve, to adsorb nitrogen and the like. Therefore, when the oxygen processing device 121 stops generating oxygen or the adsorbent therein is in a saturated state, it is necessary to disconnect the connection between the oxygen processing device 121 and the air processing unit 11, and then transport the oxygen stored in the purge tank 123 to the oxygen processing device 121, so as to use oxygen to purge and analyze the adsorbent, and to take the nitrogen discharged from the adsorbent out of the oxygen processing device 121 and discharge it to the outside, so as to restore the adsorption capacity of the adsorbent and ensure the oxygen generation efficiency of the oxygen processing device 121.

[0038] The oxygen production system 100 provided in the embodiment of the present application has a simple structure and oxygen production process, which is conducive to reducing the occurrence rate of failures, improving the oxygen production efficiency, and can effectively reduce the assembly space required for the oxygen production system 100.

[0039] In some embodiments, see Figure 1 and Figure 2 The oxygen processing unit 12 further includes a first communication component 124 and a second communication component 125. The first communication component 124 is connected between the oxygen storage tank 122 and the oxygen processing device 121, and the first communication component 124 is configured to selectively control the oxygen storage tank 122 to be connected to the oxygen processing device 121. The second communication component 125 is connected between the purge tank 123 and the oxygen processing device 121, and the second communication component 125 is configured to selectively control the purge tank 123 to be connected to the oxygen processing device 121.

[0040] It is understandable that, during the specific operation of the oxygen production system 100, the air compressor 10 compresses the outside air and delivers the compressed air to the air processing unit 11. The air processing unit 11 performs a first purification process on the compressed air to purify moisture and foreign matter in the air. The air after the first purification process will be further delivered to the oxygen processing device 121, which can remove gases other than oxygen in the air to prepare oxygen. Thereafter, the oxygen prepared by the oxygen processing device 121 will be respectively delivered to the oxygen storage tank 122 and the purge tank 123 through the first connecting component 124 and the second connecting component 125 for storage.

[0041] When the oxygen processing device 121 stops producing oxygen or the adsorbent therein is in a saturated state, it is necessary to disconnect the connection between the oxygen processing device 121 and the air processing unit 11, and control the first connecting component 124 to disconnect the connection between the oxygen storage tank 122 and the oxygen processing device 121. Finally, the oxygen stored in the purge tank 123 is transported to the oxygen processing device 121 to purge and analyze the adsorbent with oxygen, and the nitrogen discharged from the adsorbent is taken out of the oxygen processing device 121 and discharged to the outside, so as to restore the adsorption capacity of the adsorbent and ensure the oxygen production efficiency of the oxygen processing device 121.

[0042] Furthermore, the first communication component 124 includes a first communication pipe and a first communication control valve, and the first communication pipe is connected between the oxygen processing device 121 and the oxygen storage tank 122. The first communication control valve is connected to the first communication pipe and is used to control the connection or disconnection between the oxygen processing device 121 and the oxygen processing device 121.

[0043] Correspondingly, the second communication assembly 125 includes a second communication pipe and a second communication control valve, and the second communication pipe is connected between the oxygen processing device 121 and the purge tank 123. The second communication control valve is connected to the second communication pipe and is used to control the connection or disconnection between the oxygen processing device 121 and the purge device.

[0044] In some embodiments, see Figure 1 and Figure 2 The oxygen processing unit 12 further includes a first exhaust assembly 126 , which is selectively connectable to the oxygen processing device 121 and is used to exhaust other gases purified by the oxygen processing device 121 .

[0045] It is understandable that when the oxygen processing device 121 stops producing oxygen or the adsorbent therein is in a saturated state, it is necessary to disconnect the connection between the oxygen processing device 121 and the air processing unit 11, and control the first connecting component 124 to disconnect the connection between the oxygen storage tank 122 and the oxygen processing device 121. Finally, the first exhaust component 126 is controlled to be connected to the oxygen processing device 121. In this way, in the process of using the oxygen stored in the purge tank 123 to purge and analyze the adsorbent in the oxygen processing device 121, the oxygen carries the nitrogen discharged from the adsorbent and is discharged to the outside through the first exhaust component 126.

[0046] Furthermore, the first exhaust assembly 126 includes a first exhaust pipe and a first exhaust control valve, and the first exhaust pipe is connected to the oxygen processing device 121. The first exhaust control valve is connected to the first exhaust pipe and is used to control the connection or disconnection between the first exhaust pipe and the oxygen processing device 121.

[0047] In some embodiments, the air processing unit 11 includes an air processing device 111 and an air storage tank 117. The air processing device 111 is connected to the air compressor 10 and is used to perform a first purification process on the compressed air to purify moisture and foreign matter in the air. The air storage tank 117 is connected to the air processing device 111 and is used to store the air output by the air processing device 111. The air storage tank 117 is also selectively connected to the oxygen processing device 121.

[0048] It is understandable that during the specific operation of the oxygen production system 100, the air compressor 10 compresses the outside air and delivers the compressed air to the air treatment device 111. The air treatment device 111 performs a first purification process on the compressed air to purify moisture and foreign matter in the air. The air after the first purification process will be further delivered to the air storage tank 117 for storage. In addition, the air storage tank 117 will also deliver the stored air to the oxygen treatment device 121, which can remove other gases in the air except oxygen, thereby preparing oxygen. Thereafter, the oxygen prepared by the oxygen treatment device 121 will be respectively delivered to the oxygen storage tank 122 and the purge tank 123 through the first connecting component 124 and the second connecting component 125 for storage.

[0049] In some embodiments, see Figure 2 and Figure 3 The air treatment device 111 includes a first air processor 1111 and a second air processor 1112, and the first air processor 1111 and the second air processor 1112 are both used to purify moisture in the air.

[0050] The air processing unit 11 further includes a first input component 112 and a first output component 113. The first air processor 1111 and the second air processor 1112 are both connected to the air compressor 10 through the first input component 112, and the first input component 112 is configured to selectively control the first air processor 1111 or the second air processor 1112 to be connected to the air compressor 10. The first air processor 1111 and the second air processor 1112 are both connected to the air storage tank 117 through the first output component 113, and the first output component 113 is configured to selectively control the first air processor 1111 or the second air processor 1112 to deliver the first purified air to the air storage tank 117.

[0051] It should be noted that the first air processor 1111 and the second air processor 1112 usually use an adsorbent to adsorb moisture in the air. Therefore, when the first air processor 1111 and the second air processor 1112 stop producing oxygen, or the desiccant in the first air processor 1111 and the second air processor 1112 is in a saturated state, the desiccant needs to be purged and analyzed to discharge the moisture adsorbed from the desiccant, so as to restore the adsorption capacity of the desiccant and ensure the oxygen production efficiency of the oxygen processing device 121.

[0052] In the present application, before the air treatment device 111 is used to perform the first purification process on the air, it is necessary to control the first input component 112 to connect either the first air processor 1111 or the second air processor 1112 to the air compressor 10 to remove moisture from the air. At the same time, the other of the first air processor 1111 or the second air processor 1112 that is disconnected from the air compressor 10 can be purged and analyzed synchronously, so that the first air processor 1111 or the second air processor 1112 can work alternately, thereby ensuring the continuity of the oxygen production process, which is conducive to improving the oxygen production efficiency.

[0053] For further information, see Figure 2 and Figure 3 The air treatment device 111 also includes a third air processor 1113, which is connected to the first input component 112. The third air processor 1113 is a refrigerated dryer. The first air processor 1111 and the second air processor 1112 are both provided with desiccant.

[0054] For ease of understanding, the present application is written by taking the example that the first input component 112 realizes the connection between the first air processor 1111 and the air compressor 10 and the second air processor 1112 is disconnected from the air compressor 10.

[0055] In the specific operation process of the oxygen production system 100, the air compressor 10 compresses the outside air, and the compressed air is first delivered to the refrigerated dryer through the first input component 112. The refrigerated dryer can condense the water vapor in the air into liquid water by heat exchange, thereby removing part of the water in the air. Further, the air after passing through the refrigerated dryer will be delivered to the first air processor 1111 by the first input component 112, and the first air processor 1111 uses the dryer to remove the water in the compressed air, thereby ensuring the air purification effect.

[0056] For further information, see Figure 2 and Figure 3 The air treatment device 111 further includes a filter component 1114, which is connected to the first input component 112 and is used to purify foreign matter in the air.

[0057] It is understood that the filter assembly 1114 generally includes a plurality of filter elements, and the plurality of filter elements can be divided into primary filter elements, intermediate filter elements, advanced filter elements and special filter elements according to the filtering effect. The filtering effect is determined according to the ability of the filter element to remove foreign matter of different types and sizes.

[0058] In the present application, the primary filter is generally used to filter dust or other particles with larger particles, and the primary filter is connected to the first input assembly 112 and is located upstream of the refrigerated dryer. In this way, the compressed air is first delivered to the primary filter through the first input assembly 112 for filtration, and then delivered to the refrigerated dryer, which can avoid clogging of the refrigerated dryer and ensure the normal operation of the refrigerated dryer.

[0059] In addition, the intermediate filter element, the high-level filter element and the special filter element can further filter oil and dirt in the air, and the intermediate filter element, the high-level filter element and the special filter element are generally connected to the first input component 112 and located downstream of the refrigerated dryer.

[0060] In some embodiments, see Figure 2 and Figure 3 The air handling unit 11 also includes a third connecting component 114, which is connected between the first air processor 1111 and the second air processor 1112, and the third connecting component 114 is configured to selectively control the airflow direction between the first air processor 1111 and the second air processor 1112.

[0061] It can be understood that when the first air processor 1111 is connected to the air compressor 10 through the first input component 112, the first air processor 1111 is connected to the second air processor 1112 through the third connecting component 114. In this way, the second air processor 1112 is purged and analyzed by the air purified by the first air processor 1111 to discharge the moisture adsorbed from the desiccant, thereby restoring the adsorption capacity of the desiccant and ensuring the oxygen production efficiency of the oxygen treatment device 121.

[0062] In some embodiments, see Figure 2 and Figure 3 The air handling unit 11 also includes a second input component 115. The first air processor 1111 and the second air processor 1112 are both connected to the air storage tank 117 through the second input component 115, and the second input component 115 is configured to selectively control the air storage tank 117 to deliver the air stored therein to the first air processor 1111 or the second air processor 1112.

[0063] It is understandable that, since the first air processor 1111 and the second air processor 1112 can achieve continuous purification of the air, the purified air will be continuously transported to the air storage tank 117, and further transported to the oxygen processing device 121 via the air storage tank 117. When the oxygen processing device 121 is completely filled with air, the oxygen processing device 121 will prepare oxygen. Therefore, it is necessary to control the oxygen processing device 121 to be disconnected from the air storage tank 117 accordingly. Then, when the air storage tank 117 is also filled with air, the air continuously purified by the first air processor 1111 and the second air processor 1112 needs to be further utilized to avoid waste of resources.

[0064] Therefore, in the present application, the present application takes the first input component 112 to realize the connection between the first air processor 1111 and the air compressor 10, and the second air processor 1112 is disconnected from the air compressor 10 as an example to write an embodiment.

[0065] Specifically, when the oxygen processing device 121 is completely filled with air, the oxygen processing device 121 is controlled to be disconnected from the air storage tank 117, and the air storage tank 117 and the second air processor 1112 are controlled through the third connecting component 114, so that the excess air in the air storage tank 117 can be used to purge and analyze the second air processor 1112, thereby restoring the adsorption capacity of the adsorbent and ensuring the oxygen production efficiency of the oxygen processing device 121.

[0066] For further information, see Figure 2 and Figure 3The air handling unit 11 further includes a second exhaust assembly 116, which is connected between the first air processor 1111 and the second air processor 1112, and the second exhaust assembly 116 is configured to selectively connect to the first air processor 1111 or the second air processor 1112.

[0067] It is understandable that the air used for washing and parsing the first air processor 1111 or the second air processor 1112 can carry the moisture exhausted from the dryer and be exhausted to the outside through the second exhaust assembly 116 .

[0068] In some embodiments, the oxygen production system 100 further includes a muffler, which is connected to the second exhaust assembly 116 and is used to eliminate the noise generated when the second exhaust assembly 116 is exhausted.

[0069] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0070] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be construed as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the protection scope of the patent application shall be subject to the attached claims.

Claims

1. An oxygen production system, characterized in that: include: Air compressor, used to compress outside air; an air processing unit, connected to the air compressor, and configured to perform a first purification process on the compressed air to purify moisture and foreign matter in the air; The oxygen processing unit comprises an oxygen processing device, an oxygen storage tank and a purge tank, wherein the oxygen processing device can be selectively connected to the air processing unit, the oxygen storage tank and the purge tank; the oxygen processing device is used to perform a second purification process on the air after the first purification process to purify other gases in the air except oxygen; the oxygen storage tank is used to store a part of the oxygen output by the oxygen processing device; and the purge tank is used to store another part of the oxygen output by the oxygen processing device.

2. The oxygen production system according to claim 1, characterized in that: The oxygen processing unit further includes a first connecting component and a second connecting component, wherein the first connecting component is connected between the oxygen storage tank and the oxygen processing device, and the first connecting component is configured to selectively control the connection between the oxygen storage tank and the oxygen processing device; the second connecting component is connected between the purge tank and the oxygen processing device, and the second connecting component is configured to selectively control the connection between the purge tank and the oxygen processing device.

3. The oxygen production system according to claim 2, characterized in that: The oxygen processing unit further includes a first exhaust assembly, which is selectively connectable to the oxygen processing device and is used to exhaust other gases purified by the oxygen processing device.

4. The oxygen production system according to claim 1, characterized in that: The air processing unit includes an air processing device and an air storage tank. The air processing device is connected to the air compressor and is used to perform a first purification process on the compressed air to purify moisture and foreign matter in the air; the air storage tank is connected to the air processing device and is used to store the air output by the air processing device; the air storage tank can also be selectively connected to the oxygen processing device.

5. The oxygen production system according to claim 4, characterized in that: The air treatment device comprises a first air processor and a second air processor, wherein the first air processor and the second air processor are both used for purifying moisture in the air; The air treatment unit also includes a first input component and a first output component. The first air processor and the second air processor are both connected to the air compressor through the first input component, and the first input component is configured to selectively control the first air processor or the second air processor to be connected to the air compressor; the first air processor and the second air processor are both connected to the air storage tank through the first output component, and the first output component is configured to selectively control the first air processor or the second air processor to deliver the first purified air to the air storage tank.

6. The oxygen production system according to claim 5, characterized in that: The air handling unit further includes a third communication component, the third communication component being connected between the first air handler and the second air handler, and the third communication component being configured to selectively control an airflow direction between the first air handler and the second air handler.

7. The oxygen production system according to claim 5, characterized in that: The air handling unit also includes a second input component, and the first air handling unit and the second air handling unit are both connected to the air storage tank through the second input component, and the second input component is configured to selectively control the air storage tank to deliver the air stored therein to the first air handling unit or the second air handling unit.

8. The oxygen production system according to claim 5, characterized in that: The air treatment device further comprises a third air processor, which is in communication with the first input assembly and is a refrigerated dryer. Desiccant is disposed in both the first air processor and the second air processor.

9. The oxygen production system according to claim 5, characterized in that: The air treatment device further comprises a filter assembly, which is communicated with the first input assembly and is used for purifying foreign matter in the air.

10. The oxygen production system according to claim 5, characterized in that: The air handling unit further includes a second exhaust assembly, the second exhaust assembly being connected between the first air handler and the second air handler, and the second exhaust assembly being configured to selectively connect to the first air handler or the second air handler.

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