Efficient carbon monoxide purification system and method for oxygenerator

Abstract

The invention provides an efficient carbon monoxide purification system and method for an oxygenerator, and the system comprises an oxygen generation module which is used for producing first compressed oxygen; the oxygen purifying module is used for receiving the first compressed oxygen, purifying carbon monoxide of the first compressed oxygen and outputting second compressed oxygen; the exhaust module is used for exhausting nitrogen and carbon dioxide in the first compressed oxygen before the first compressed oxygen is subjected to carbon monoxide purification; the oxygen purification module comprises a water removal unit, a purification unit and an adsorption unit; one end of the water removal unit is connected with the oxygen generation module, the other end of the water removal unit is connected with the adsorption unit, the purification unit is located in the middle of the adsorption unit, and the exhaust module and the oxygen purification module are both connected with the oxygen generation module. Therefore, the health and life safety of construction workers are fully guaranteed.

Description

[Technical field]

[0001] The present invention relates to the technical field of special oxygen production equipment for plateau environments, and in particular to a high-efficiency carbon monoxide purification system and method for an oxygen generator. [Background technology]

[0002] During tunnel construction in high-altitude areas, not only is the oxygen content low, but there is also an increase in harmful gases, mainly carbon monoxide and carbon dioxide. Construction workers have to undertake heavy work under such conditions, and their health and life safety will be threatened.

[0003] Carbon monoxide is a toxic gas. Inhaling a small amount can cause irreversible damage to the brain. Excessive concentration of carbon dioxide can also have a significant impact on human work, which poses a great challenge to on-site workers. At present, there are many precedents for oxygen production systems for plateaus. However, there is currently no oxygen production technology for special environments with harmful gases such as carbon monoxide. Although current adsorbents can achieve the adsorption of carbon monoxide, they cannot achieve efficient removal of carbon monoxide during the oxygen production process, especially removing carbon monoxide to below 5ppm, or even about 0ppm to meet the needs of personnel for oxygen. The traditional CO catalytic method cannot efficiently purify carbon monoxide at room temperature and in the presence of water.

[0004] Therefore, it is necessary to study an efficient carbon monoxide purification system and method for an oxygen generator to address the deficiencies of the prior art and to solve or alleviate one or more of the above problems. [Summary of the invention]

[0005] In view of this, the present invention provides a high-efficiency carbon monoxide purification system and method for an oxygen generator to solve the health and safety problems caused by thin air and increased harmful gases such as carbon monoxide in environments such as tunnel construction in high-altitude areas raised in the above-mentioned background technology. The present invention optimizes the adsorbent of the traditional oxygen generator and places the carbon monoxide catalyst in the lower layer of the molecular sieve, which can effectively adsorb carbon monoxide gas in extreme environments such as tunnel construction in plateau areas, thereby fully protecting the health and life safety of construction workers.

[0006] In one aspect, the present invention provides a high-efficiency carbon monoxide purification system for an oxygen concentrator, the high-efficiency carbon monoxide purification system comprising:

[0007] An oxygen production module, used for producing a first compressed oxygen;

[0008] An oxygen purification module is used for receiving the first compressed oxygen, purifying the carbon monoxide therein, and outputting the second compressed oxygen;

[0009] an exhaust module for exhausting nitrogen and carbon dioxide from the first compressed oxygen before the first compressed oxygen is subjected to carbon monoxide purification;

[0010] The oxygen purification module includes a water removal unit, a purification unit and an adsorption unit;

[0011] The dehydration unit is used to remove moisture from the first compressed oxygen;

[0012] The purification unit catalyzes carbon monoxide in the first compressed oxygen into carbon dioxide in an oxygen-rich and low-temperature environment;

[0013] The adsorption unit is used to adsorb carbon dioxide generated by catalysis in the purification unit;

[0014] One end of the dehydration unit is connected to the oxygen production module, and the other end is connected to the adsorption unit. The purification unit is located in the middle of the adsorption unit. The exhaust module and the oxygen purification module are both connected to the oxygen production module.

[0015] According to the above aspects and any possible implementation, there is further provided an implementation, wherein the water removal unit is aluminum oxide.

[0016] According to the above aspects and any possible implementation, there is further provided an implementation, wherein the purification unit is a carbon monoxide catalyst.

[0017] According to the above aspects and any possible implementation, there is further provided an implementation, wherein the adsorption unit is a molecular sieve.

[0018] According to the above aspects and any possible implementation, an implementation is further provided, wherein the adsorption unit has a nitrogen adsorption function while adsorbing the carbon dioxide catalytically generated by the purification unit.

[0019] According to the aspects described above and any possible implementation, an implementation is further provided, wherein the oxygen production module comprises an air filter, an air compressor and an exhaust device, wherein one end of the air filter is connected to external air, and the other end is connected to the exhaust device through the air compressor, and the exhaust device is connected to the oxygen purification module.

[0020] According to the aspects described above and any possible implementation, an implementation is further provided, wherein the oxygen purification module also includes a solenoid valve, the solenoid valve includes a first valve, a second valve and a third valve, the first valve is connected to the exhaust device, the second valve is connected to the water removal unit, and the third valve is connected to the exhaust module.

[0021] According to the aspects described above and any possible implementation method, an implementation method is further provided, wherein the oxygen purification module is also provided with an oxygen storage tank and two adsorption towers, and each adsorption tower is provided with the water removal unit, the first adsorption unit, the purification unit and the second adsorption unit in sequence from bottom to top, and the second adsorption units in the two adsorption towers are connected to the oxygen storage tank.

[0022] According to the above aspects and any possible implementation, an implementation is further provided, wherein there are two second valves, and the two second valves are respectively connected to the water removal units in the two adsorption towers.

[0023] According to the above aspects and any possible implementation, a method for efficiently purifying carbon monoxide for an oxygen generator is further provided, wherein carbon monoxide is purified by the efficient carbon monoxide purification system, and the efficient carbon monoxide purification method comprises the following steps:

[0024] S1: The oxygen purification module is filled with alumina, molecular sieve, carbon monoxide catalyst, and molecular sieve in this order;

[0025] S2: delivering compressed air to the solenoid valve for connecting two adsorption towers;

[0026] S3: Open the solenoid valve to deliver the compressed air to the two adsorption towers;

[0027] S4: The aluminum oxide in the adsorption tower quickly removes water from the compressed air, and the molecular sieve layer provides an oxygen-rich environment for catalysis. After catalysis by the catalyst layer, the generated carbon dioxide is sent to the molecular sieve layer for adsorption;

[0028] S5: delivering the second compressed oxygen produced by the two adsorption towers to the oxygen storage tank;

[0029] S6: Obtain oxygen and output it.

[0030] Compared with the prior art, the present invention can achieve the following technical effects:

[0031] The present invention solves the problem that traditional oxygen generators cannot purify harmful gases such as carbon monoxide and carbon dioxide in extreme environments such as tunnel construction in plateau areas. It can effectively ensure the oxygen supply for workers while purifying harmful gases. It has the characteristics of high oxygen production efficiency, few oxygen impurities, and safety and reliability.

[0032] Of course, any product implementing the present invention does not necessarily need to achieve all of the above-mentioned technical effects at the same time.

Brief Description of the Drawings

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 An overall flow chart of a process for purifying carbon monoxide and carbon dioxide in an oxygen generator provided by one embodiment of the present invention;

[0035] Figure 2 A diagram showing the composition of an adsorption layer in a pressure swing adsorption oxygen production tower under radial loading conditions provided by one embodiment of the present invention;

[0036] Figure 3 An overall schematic diagram of a first adsorption tower and a second adsorption tower provided in one embodiment of the present invention;

[0037] Figure 4 A module diagram of a pressure swing adsorption oxygen production system provided in one embodiment of the present invention.

[0038] Among them, in the figure:

[0039] 6. Molecular sieve layer, 7. Carbon monoxide catalyst layer, 8. Alumina layer, 9. Two-position three-way valve, 10. Adsorption tower base, 11. First adsorption tower, 12. Second adsorption tower, 13. Oxygen storage tank. [Specific implementation method]

[0040] In order to better understand the technical solution of the present invention, the embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0041] It should be clear that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0043] like Figure 4 As shown, the present invention provides a high-efficiency carbon monoxide purification system for an oxygen generator, the high-efficiency carbon monoxide purification system comprising:

[0044] An oxygen production module, used for producing a first compressed oxygen;

[0045] An oxygen purification module is used for receiving the first compressed oxygen, purifying the carbon monoxide therein, and outputting the second compressed oxygen;

[0046] an exhaust module for exhausting nitrogen and carbon dioxide from the first compressed oxygen before the first compressed oxygen is subjected to carbon monoxide purification;

[0047] The oxygen purification module includes a water removal unit, a purification unit and an adsorption unit;

[0048] The dehydration unit is used to remove moisture from the first compressed oxygen;

[0049] The purification unit catalyzes carbon monoxide in the first compressed oxygen into carbon dioxide in an oxygen-rich and low-temperature environment;

[0050] The adsorption unit is used to adsorb carbon dioxide generated by catalysis in the purification unit;

[0051] One end of the dehydration unit is connected to the oxygen production module, and the other end is connected to the adsorption unit. The purification unit is located in the middle of the adsorption unit. The exhaust module and the oxygen purification module are both connected to the oxygen production module.

[0052] The water removal unit is aluminum oxide.

[0053] The purification unit is a carbon monoxide catalyst.

[0054] The adsorption unit is a molecular sieve.

[0055] The adsorption unit not only absorbs carbon dioxide generated by the catalytic purification unit, but also has the function of adsorbing nitrogen.

[0056] The oxygen production module comprises an air filter, an air compressor and an exhaust device. One end of the air filter is connected to the outside air, and the other end is connected to the exhaust device through the air compressor. The exhaust device is connected to the oxygen purification module.

[0057] The oxygen purification module further comprises a solenoid valve, which comprises a first valve, a second valve and a third valve, wherein the first valve is connected to the exhaust device, the second valve is connected to the water removal unit, and the third valve is connected to the exhaust module.

[0058] The oxygen purification module is also provided with an oxygen storage tank and two adsorption towers. Each adsorption tower is provided with the dehydration unit, the first adsorption unit, the purification unit and the second adsorption unit in sequence from bottom to top. The second adsorption units in the two adsorption towers are connected to the oxygen storage tank.

[0059] There are two second valves, and the two second valves are respectively connected to the water removal units in the two adsorption towers.

[0060] The present invention also provides a highly efficient carbon monoxide purification method for an oxygen generator, wherein carbon monoxide is purified by the highly efficient carbon monoxide purification system, and the highly efficient carbon monoxide purification method comprises the following steps:

[0061] S1: The oxygen purification module is filled with alumina, molecular sieve, carbon monoxide catalyst, and molecular sieve in this order;

[0062] S2: delivering compressed air to the solenoid valve for connecting two adsorption towers;

[0063] S3: Open the solenoid valve to deliver the compressed air to the two adsorption towers;

[0064] S4: The aluminum oxide in the adsorption tower quickly removes water from the compressed air, and the molecular sieve layer provides an oxygen-rich environment for catalysis. After catalysis by the catalyst layer, the generated carbon dioxide is sent to the molecular sieve layer for adsorption;

[0065] S5: delivering the second compressed oxygen produced by the two adsorption towers to the oxygen storage tank;

[0066] S6: Obtain oxygen and output it.

[0067] Embodiment 1:

[0068] The present invention provides a method and device for efficiently purifying carbon monoxide for an oxygen generator. The pressure swing adsorption oxygen production system comprises two adsorption towers, an air compressor, a two-position five-way combination valve, an oxygen storage tank 13, etc. The oxygen production method comprises the following steps: the air compressor delivers compressed air to a solenoid valve 9 for connecting a first adsorption tower 11 and a second adsorption tower 12, the valve 9 of the solenoid valve is opened, and the compressed air is delivered to the first adsorption tower 11 and the second adsorption tower 12. The order of filling in the adsorption bed layer is aluminum oxide 8, carbon monoxide catalyst 7, molecular sieve 6,

[0069] Reference Figure 1 As shown, the process comprises the following steps:

[0070] S1: The adsorption bed is filled in the order of aluminum oxide 8, molecular sieve 6, carbon monoxide catalyst 7, and molecular sieve 6;

[0071] S2: The air compressor delivers compressed air to the solenoid valve 9 for connecting the first adsorption tower 11 and the second adsorption tower 12;

[0072] S3: Open the solenoid valve 9 to deliver the compressed air to the first adsorption tower 11 and the second adsorption tower 12;

[0073] S4: Alumina 8 in the adsorption tower quickly removes water from the compressed air, and the molecular sieve 6 layer provides an oxygen-rich environment for catalysis. After catalysis by the catalyst 7 layer, the generated carbon dioxide is sent to the molecular sieve 6 layer for adsorption;

[0074] S5: The oxygen generated by the first adsorption tower 11 is transported to the oxygen storage tank 13 through the first channel, and the oxygen generated by the second adsorption tower 12 is transported to the oxygen storage tank 13 through the second channel;

[0075] S6: Obtain oxygen and output;

[0076] Reference Figure 2 , Figure 2 The diagram of the adsorption layer composition in the pressure swing adsorption oxygen production adsorption tower is shown. In the step of "filling the adsorption bed in the order of alumina 8, molecular sieve 6, carbon monoxide catalyst 7, and molecular sieve 6", the adsorption tower includes an air inlet and an air outlet. In the adsorption tower, a dehydration unit, an adsorption unit, and an adsorption unit are arranged along the direction from the air inlet to the air outlet. Alumina 8, molecular sieve 6, carbon monoxide catalyst 7, and molecular sieve 6 are filled in the adsorption unit in sequence; the alumina 8 can quickly remove water from the air source provided by the compressor and provide good air source conditions for subsequent processes. The molecular sieve 6 can provide an oxygen-rich environment for the carbon monoxide catalyst 7. The carbon monoxide 7 catalyst catalyzes carbon monoxide into carbon dioxide. The molecular sieve 6 located on the top layer efficiently adsorbs nitrogen and carbon dioxide, thereby achieving the purpose of efficiently purifying and removing carbon monoxide and carbon dioxide.

[0077] The steps before the air compressor compresses the air include: after receiving the user's power-on instruction, sending the power-on instruction to the processor, generating a startup instruction from the power-on instruction through the processor, and sending the startup instruction to the air compressor, and the air compressor compresses the input air according to the startup instruction; the steps before "the air compressor delivers compressed air to the solenoid valve used to connect the first adsorption tower 11 and the second adsorption tower 12" include: starting the cooling fan, cooling and dissipating the heat generated by the air compressor during the compression process through the cooling fan, and delivering the heat generated by the air compression module during the compression process together with the wind generated by the cooling fan to the exhaust device, and controlling the system temperature to maintain the performance of the adsorbent, improve the oxygen production efficiency, protect the safety of the equipment, and extend the service life of the equipment. By effectively removing the heat generated during the process, the cooling fan ensures that the equipment operates stably within an appropriate temperature range, avoiding performance degradation and potential safety risks caused by excessively high temperatures, thereby ensuring the efficiency and safety of the system.

[0078] Reference Figure 3As shown, an oxygen storage tank 13 is provided between the first adsorption tower 11 and the second adsorption tower 12, and a first channel and a second channel for connecting the oxygen storage tank are provided above the first adsorption tower 11 and the second adsorption tower 12, and a base 10 is provided below the first adsorption tower 11 and the second adsorption tower 12, and a third channel for connecting the first adsorption tower 11 and the two-position three-way valve 9 and a fourth channel for connecting the second adsorption tower 12 and the two-position three-way valve 9 are provided inside the base 10; according to the difference in the adsorption capacity of nitrogen and oxygen by the molecular sieves in the first adsorption tower 11 and the second adsorption tower 12, nitrogen in the compressed air is adsorbed to obtain oxygen in the compressed air;

[0079] The process method for efficiently purifying carbon monoxide and carbon dioxide for an oxygen generator is characterized in that "after the compressed air is transported to the first adsorption tower 11 and the second adsorption tower 12, the compressed air passes through the aluminum oxide 8 in the adsorption tower for rapid dehydration, the compressed air after dehydration passes through the adsorbent layer for primary adsorption of nitrogen in the compressed air, the catalyst layer 7 catalyzes carbon monoxide, the carbon dioxide generated after catalysis and the nitrogen in the compressed air are adsorbed through the top adsorbent layer 6, and the generated oxygen is transported to the oxygen storage tank 13 through the first channel;

[0080] The steps after "transporting the oxygen generated by the first adsorption tower 11 to the oxygen storage tank 13 through the first channel, and transporting the oxygen generated by the second adsorption tower 12 to the oxygen storage tank 13 through the second channel" include: closing the first valve of the solenoid valve to adjust the pressure inside the first adsorption tower 11 and the second adsorption tower 12; changing the adsorption capacity of the molecular sieves in the first adsorption tower 11 and the second adsorption tower 12 for nitrogen and carbon dioxide according to the pressure changes inside the first adsorption tower 11 and the second adsorption tower 12, so that the nitrogen and carbon dioxide adsorbed by the molecular sieve are separated from the molecular sieve; opening the second valve and the third valve of the solenoid valve to discharge the nitrogen and carbon dioxide in the first adsorption tower 11 and the second adsorption tower 12 in sequence. The specific implementation method is as follows: after receiving a power-on command from the user, the power-on command is sent to the processor; the processor receives the power-on command, generates a first electrical signal, and sends the electrical signal to the solenoid valve; the solenoid valve receives the first electrical signal, opens the first valve and the second valve of the solenoid valve, closes the third valve of the solenoid valve, and allows the compressed air to enter the second valve from the first valve, and is transported to the first adsorption tower 11 and the second adsorption tower 12 through the second valve; through the cooperation of the first valve, the second valve and the third valve of the solenoid valve, the switching between the outside air being transported to the adsorption tower and the adsorbed nitrogen and carbon dioxide being discharged to the outside is realized, and the method has the characteristics of convenient operation and compact structure.

[0081] The steps before "obtaining oxygen and outputting" include: calling a preset flow value, comparing whether the flow of oxygen meets the preset flow value, and when the flow of oxygen meets the preset flow value, controlling the oxygen generator to be in standby mode; when the flow of oxygen is lower than the preset flow value, according to the preset flow value, controlling the oxygen generator to continue working, adjusting the flow of oxygen, so that the flow of oxygen reaches the preset flow value;

[0082] The present invention provides a method and device for efficiently purifying carbon monoxide for an oxygen generator. Compared with the prior art, the adsorbent of the conventional oxygen generator is optimized, and a radial arrangement method is adopted in which alumina is located at the bottom layer of the adsorption tower, a carbon monoxide catalyst is located at the upper layer of alumina, and a molecular sieve is located at the upper layer of the carbon monoxide catalyst. This effectively solves the problem that the conventional oxygen generator cannot effectively purify harmful gases such as carbon monoxide and carbon dioxide in the working environment of a plateau tunnel, and ensures the safety of tunnel workers in a plateau environment when using oxygen.

[0083] The above is a detailed introduction to a highly efficient carbon monoxide purification system and method for an oxygen generator provided by the embodiment of the present application. The description of the above embodiment is only used to help understand the method and its core idea of ​​the present application; at the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

[0084] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different nouns to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. As mentioned throughout the specification and claims, "including" and "comprising" are open-ended terms, so they should be interpreted as "including / including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect. The subsequent description of the specification is a preferred embodiment of the present application, but the description is for the purpose of illustrating the general principles of the present application, and is not used to limit the scope of the present application. The scope of protection of the present application shall be determined by the definition of the attached claims.

[0085] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0086] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0087] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A highly efficient carbon monoxide purification system for an oxygen generator, characterized in that: The high-efficiency carbon monoxide purification system comprises: An oxygen production module, used for producing a first compressed oxygen; An oxygen purification module is used for receiving the first compressed oxygen, purifying the carbon monoxide therein, and outputting the second compressed oxygen; an exhaust module for exhausting nitrogen and carbon dioxide from the first compressed oxygen before the first compressed oxygen is subjected to carbon monoxide purification; The oxygen purification module includes a water removal unit, a purification unit and an adsorption unit; The dehydration unit is used to remove moisture from the first compressed oxygen; The purification unit catalyzes carbon monoxide in the first compressed oxygen into carbon dioxide; The adsorption unit is used to adsorb carbon dioxide generated by catalysis in the purification unit; One end of the dehydration unit is connected to the oxygen production module, and the other end is connected to the adsorption unit. The purification unit is located in the middle of the adsorption unit. The exhaust module and the oxygen purification module are both connected to the oxygen production module.

2. The high-efficiency carbon monoxide purification system according to claim 1, characterized in that: The water removal unit is aluminum oxide.

3. The high-efficiency carbon monoxide purification system according to claim 1, characterized in that: The purification unit is a carbon monoxide catalyst.

4. The high-efficiency carbon monoxide purification system according to claim 1, characterized in that: The adsorption unit is a molecular sieve.

5. The high-efficiency carbon monoxide purification system according to claim 4, characterized in that: The adsorption unit not only absorbs carbon dioxide generated by the catalytic purification unit, but also has the function of adsorbing nitrogen.

6. The high-efficiency carbon monoxide purification system according to claim 1, characterized in that: The oxygen production module comprises an air filter, an air compressor and an exhaust device. One end of the air filter is connected to the outside air, and the other end is connected to the exhaust device through the air compressor. The exhaust device is connected to the oxygen purification module.

7. The high-efficiency carbon monoxide purification system according to claim 6, characterized in that: The oxygen purification module further comprises a solenoid valve, which comprises a first valve, a second valve and a third valve, wherein the first valve is connected to the exhaust device, the second valve is connected to the water removal unit, and the third valve is connected to the exhaust module.

8. The high-efficiency carbon monoxide purification system according to claim 7, characterized in that: The oxygen purification module is also provided with an oxygen storage tank and two adsorption towers. Each adsorption tower is provided with the dehydration unit, the first adsorption unit, the purification unit and the second adsorption unit in sequence from bottom to top. The second adsorption units in the two adsorption towers are connected to the oxygen storage tank.

9. The high-efficiency carbon monoxide purification system according to claim 8, characterized in that: There are two second valves, and the two second valves are respectively connected to the water removal units in the two adsorption towers.

10. A method for efficiently purifying carbon monoxide for an oxygen generator, wherein carbon monoxide is purified by using the efficient carbon monoxide purification system according to any one of claims 1 to 9, characterized in that: The highly efficient carbon monoxide purification method comprises the following steps: S1: The oxygen purification module is filled with alumina, molecular sieve, carbon monoxide catalyst, and molecular sieve in this order; S2: delivering compressed air to the solenoid valve for connecting two adsorption towers; S3: Open the solenoid valve to deliver the compressed air to the two adsorption towers; S4: The aluminum oxide in the adsorption tower quickly removes water from the compressed air, and the molecular sieve layer provides an oxygen-rich environment for catalysis. After catalysis by the catalyst layer, the generated carbon dioxide is sent to the molecular sieve layer for adsorption; S5: delivering the second compressed oxygen produced by the two adsorption towers to the oxygen storage tank; S6: Obtain oxygen and output it.

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