Multi-screen-barrel array rotation control portable oxygen generation system

Abstract

A multi-screen-barrel array rotation control portable oxygen generation system comprises at least three molecular sieve screen barrels, one end of each molecular sieve screen barrel is connected with an air inlet device through a first control valve set, the other end of each molecular sieve screen barrel is connected with one end of a first one-way valve, and the other end of each first one-way valve is connected with a second one-way valve. Air is pumped into the corresponding molecular sieve barrel through an air inlet device, oxygen is separated out and stored in an air storage tank, each first control valve set is further connected with a nitrogen removal pipeline and used for conducting nitrogen removal treatment on the molecular sieve barrel where oxygen is separated out and stored, and a rotating wheel is adopted for controlling the time sequence. The air inlet time of one of the first control valve groups and the nitrogen discharge time of the other first control valve groups are controlled, so that when one molecular sieve barrel generates oxygen, the nitrogen discharge time of the other first control valve groups is ensured; at least two of the rest molecular sieve barrels are used for discharging nitrogen, so that the nitrogen discharging time is prolonged, and the pressure of the whole multi-sieve barrel array rotation control portable oxygen generation system is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of molecular sieve oxygen generators, and more specifically, to a multi-screen barrel array rotation control portable oxygen generation system. Background Art

[0002] Oxygen, as an important raw material, has a wide range of applications in fields such as industrial smelting, paper bleaching, sewage treatment, healthcare, altitude oxygen supplementation, and scientific research oxygen sources. Since the successful development of the pressure swing adsorption (PSA) oxygen generation technology in the 1960s of the 20th century, it has shown advantages in generating oxygen by using molecular sieve adsorbents with different adsorption capacities for nitrogen and oxygen, such as fast oxygen generation, safety, economy, and convenience, and easily replaced the past bottled oxygen and chemical oxygen generation. Until the first small oxygen generator developed by Praxair Company in the United States came out in the 1980s of the 20th century, the market share of small molecular sieve oxygen generators has been increasing year by year.

[0003] Currently, the commonly used PSA oxygen generation process is divided into two-tower molecular sieve oxygen generation, three-tower molecular sieve oxygen generation, and four-tower molecular sieve oxygen generation. The pressure swing adsorption method generally can be divided into steps such as adsorption, venting, flushing, and equalizing pressure. It is an automated device that uses zeolite molecular sieve as an adsorbent, and separates oxygen by adsorbing and releasing oxygen from the air based on the principle of pressurized adsorption and depressurized desorption. It mainly uses 2 screen barrels to alternately switch the oxygen generation method, and the switching time of the double screen barrels is usually fixed and cannot be dynamically adjusted according to the working environment parameters or operating status, resulting in the inability to maximize the oxygen generation efficiency. Secondly, during the high-pressure desorption process, nitrogen may not be completely released, affecting the next round of adsorption effect. Moreover, during the alternating switching process of the double screen barrels, the compressor and valves need to be frequently started and stopped, further increasing the energy consumption.

[0004] Therefore, it is necessary to provide a multi-screen barrel array rotation control portable oxygen generation system to solve the deficiencies in the prior art. Summary of the Invention

[0005] In view of this, to solve the above problems, a multi-sieve barrel array rotation control portable oxygen generation system includes at least 3 molecular sieve sieve barrels 10. One end of each molecular sieve sieve barrel 10 is respectively connected to an air inlet device through a first control valve group 20. The other end of each molecular sieve sieve barrel 10 is respectively connected to one end of a first one-way valve 30. The other end of each first one-way valve 30 is connected to the same gas storage tank 40. Air is introduced into the corresponding molecular sieve sieve barrel 10 through the air inlet device to separate oxygen and store it in the gas storage tank 40. Each first control valve group 20 is also respectively connected to a nitrogen discharge pipeline 50 for discharging nitrogen from the molecular sieve sieve barrel 10 that has separated oxygen and stored the oxygen. The rotation control timing is adopted to control the air inlet time of one of the first control valve groups 20 and the nitrogen discharge time of the remaining first control valve groups 20, ensuring that when one molecular sieve sieve barrel 10 generates oxygen, at least two of the remaining molecular sieve sieve barrels 10 discharge nitrogen, thereby reducing the pressure of the entire multi-sieve barrel array rotation control portable oxygen generation system by extending the nitrogen discharge time, enabling complete nitrogen discharge, resulting in high oxygen productivity and low machine failure rate.

[0006] A multi-sieve barrel array rotation control portable oxygen generation system, characterized in that it includes at least 3 molecular sieve sieve barrels 10. One end of each molecular sieve sieve barrel 10 is respectively connected to an air inlet device through a first control valve group 20. The other end of each molecular sieve sieve barrel 10 is respectively connected to one end of a first one-way valve 30. The other end of each first one-way valve 30 is connected to the same gas storage tank 40. Air is introduced into the corresponding molecular sieve sieve barrel 10 through the air inlet device to separate oxygen and store it in the gas storage tank 40. Each first control valve group 20 is also respectively connected to a nitrogen discharge pipeline 50 for discharging nitrogen from the molecular sieve sieve barrel 10 that has separated oxygen and stored the oxygen. The rotation control timing is adopted to control the air inlet time of one of the first control valve groups 20 and the nitrogen discharge time of the remaining first control valve groups 20, ensuring that when one molecular sieve sieve barrel 10 generates oxygen, at least two of the remaining molecular sieve sieve barrels 10 discharge nitrogen, thereby reducing the pressure of the entire multi-sieve barrel array rotation control portable oxygen generation system by extending the nitrogen discharge time, enabling complete nitrogen discharge, resulting in high oxygen productivity and low machine failure rate.

[0007] Furthermore, the operating data of the multi-sieve barrel array rotation control portable oxygen generation system is dynamically adjusted according to the working environment parameters to improve the oxygen productivity, including the following steps:

[0008] Step 1: Collect the working environment parameters and the operating data of the working state of the multi-sieve barrel array rotation control portable oxygen generation system. The operating data includes the air inlet time and nitrogen discharge time of the first control valve group 20, as well as the air inlet volume and nitrogen discharge volume of the multi-sieve barrel array rotation control portable oxygen generation system.

[0009] Step 2: Adopt a machine learning algorithm, combine the collected operation data and working environment parameters. The machine learning algorithm includes training data and a prediction function. The training data is used to establish a relationship model between the working environment parameters, operation data, and oxygen production efficiency by using the collected operation data and working environment parameters, and determine the operation data at the highest oxygen production efficiency under different working environment parameters. The prediction function: Input the current working environment parameters in real time to predict the optimal operation data;

[0010] Step 3: Monitor the oxygen production concentration and pressure of the multi-screen bucket array rotation control portable oxygen generator system, and feedback them to the relationship model between the working environment parameters, operation data, and oxygen production efficiency for continuous optimization.

[0011] Furthermore, the working environment parameters are collected in real time by equipped with multiple sensors. The sensors collect temperature, humidity, and air pressure in real time. Since high temperature will reduce the nitrogen adsorption efficiency, the temperature sensor is used to monitor the intake air temperature to judge the change of the adsorption efficiency. Since water molecules are usually more easily adsorbed by the adsorbent than other gas molecules, occupying a large number of adsorption sites and reducing the nitrogen adsorption space, the humidity sensor is used to evaluate the influence of air humidity on the molecular sieve. When the humidity is high, the adsorption time needs to be extended; the intake time, intake volume of the first control valve group 20, and the nitrogen adsorption time of the current multi-screen bucket array rotation control portable oxygen generator system are adjusted through the collected temperature and humidity parameters; the air pressure sensor is used to measure the air pressure of the current multi-screen bucket array rotation control portable oxygen generator system, and adjust the nitrogen discharge time and nitrogen discharge volume of the multi-screen bucket array rotation control portable oxygen generator system.

[0012] Furthermore, when there is a compressor 60 between the first control valve group 20 and the intake device and the compressor 60 is connected to the nitrogen discharge pipeline 50, the intake volume and nitrogen discharge volume of the multi-screen bucket array rotation control portable oxygen generator system are adjusted by dynamically adjusting the intake volume and nitrogen discharge volume of the vacuum compressor 60.

[0013] Furthermore, when there is a compressor 60 between the first control valve group 20 and the intake device, the molecular sieve buckets 10 are divided into groups of two. Each group of molecular sieve buckets 10 is connected with a first branch 70 near the upper part of the first one-way valve 30. The molecular sieve buckets 10 in this group are connected through the first branch 70. A second control valve group 71 is provided on the first branch 70. When nitrogen needs to be discharged, after inputting gas through the intake device of one of the molecular sieve buckets 10 in a group, it passes through the first branch 70 to blow nitrogen to another molecular sieve bucket 10, and the blowing volume is controlled by the second control valve group 71.

[0014] Further, a second branch 80 is also connected near the first branch 70, and the molecular sieve sieve barrels 10 of this group are connected and equalized through the pressure equalizing valve 81 on the second branch 80.

[0015] Further, at least 3 molecular sieve sieve barrels 10 are arranged to form one of a cylinder, a cube, and a multi-sided rhombus, thereby reducing the volume of the whole machine and making the volume smaller.

[0016] Further, the nano-coating technology is adopted to coat the surface of the molecular sieve in the molecular sieve sieve barrel 10 with a nano-coating, reducing the surface pollution of the molecular sieve and improving the adsorption efficiency.

[0017] Further, the molecular sieve sieve barrel 10 is made of a lightweight alloy to reduce the weight of the molecular sieve sieve barrel 10 and enhance the portability of the equipment.

[0018] Further, the output end of the gas storage tank 40 is connected to an oxygen outlet nozzle, and a jet solenoid valve and / or a proportional valve are connected between the gas storage tank 40 and the oxygen outlet nozzle to control the oxygen output of the oxygen outlet nozzle.

[0019] Further, the nitrogen discharge pipe 50 is also connected with a second one-way valve 82 to prevent nitrogen from flowing back.

[0020] The beneficial effects of the present invention: The present invention provides a multi-sieve barrel array rotation control portable oxygen generation system, including at least 3 molecular sieve sieve barrels 10. One end of each molecular sieve sieve barrel 10 is respectively connected to an air inlet device through a first control valve group 20, and the other end of each molecular sieve sieve barrel 10 is respectively connected to one end of a first one-way valve 30. The other end of each first one-way valve 30 is connected to the same gas storage tank 40. Air is pumped into the corresponding molecular sieve sieve barrel 10 through the air inlet device to separate oxygen and store it in the gas storage tank 40. Each first control valve group 20 is also respectively connected to a nitrogen discharge pipe 50 for discharging nitrogen from the molecular sieve sieve barrel 10 that has separated oxygen and stored the oxygen. The rotation control timing is adopted to control the air inlet time of one first control valve group 20 and the nitrogen discharge time of the remaining first control valve groups 20, ensuring that when one molecular sieve sieve barrel 10 generates oxygen, at least two of the remaining molecular sieve sieve barrels 10 discharge nitrogen, thereby reducing the pressure of the entire multi-sieve barrel array rotation control portable oxygen generation system by extending the nitrogen discharge time, enabling complete nitrogen discharge, and thus having a high oxygen production rate and a low machine failure rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the overall flowchart of Embodiment 1 of the present invention.

[0022] Figure 2 It is the overall flowchart of Embodiment 2 of the present invention.

[0023] Description of Main Component Symbols

[0024] Molecular sieve sieve barrel 10; first control valve group 20; first check valve 30; gas storage tank 40; nitrogen discharge pipeline 50; compressor 60; first branch 70; second control valve group 71; second branch 80; equalizing valve 81; second check valve 82.

[0025] The following specific embodiments will further illustrate the present invention in conjunction with the above-mentioned drawings. Specific Embodiments

[0026] Example:

[0027] As Figure 1 shown, a multi-sieve-barrel array rotation control portable oxygen generation system, characterized in that it includes at least 3 molecular sieve sieve barrels 10, one end of each of the molecular sieve sieve barrels 10 is respectively connected to an air intake device through a first control valve group 20, and the other end of each of the molecular sieve sieve barrels 10 is respectively connected to one end of a first check valve 30, and the other end of each first check valve 30 is connected to the same gas storage tank 40. Air is injected into the corresponding molecular sieve sieve barrel 10 through the air intake device to separate oxygen and store it in the gas storage tank 40. Each of the first control valve groups 20 is also respectively connected to a nitrogen discharge pipeline 50 for discharging nitrogen from the molecular sieve sieve barrel 10 that has separated oxygen and stored the oxygen. The rotation control timing is adopted to control the intake time of one of the first control valve groups 20 and the nitrogen discharge time of the remaining first control valve groups 20, ensuring that when one molecular sieve sieve barrel 10 generates oxygen, at least two of the remaining molecular sieve sieve barrels 10 discharge nitrogen, thereby reducing the pressure of the entire multi-sieve-barrel array rotation control portable oxygen generation system by extending the nitrogen discharge time, enabling complete nitrogen discharge, resulting in high oxygen production rate and low machine failure rate.

[0028] Dynamically adjust the operating data of the working state of the multi-sieve-barrel array rotation control portable oxygen generation system according to the working environment parameters, so as to improve the oxygen production rate, including the following steps:

[0029] Step 1: Collect the working environment parameters and the operating data of the working state of the multi-sieve-barrel array rotation control portable oxygen generation system. The operating data includes the intake time and nitrogen discharge time of the first control valve group 20, as well as the intake volume and nitrogen discharge volume of the multi-sieve-barrel array rotation control portable oxygen generation system.

[0030] Step 2: Adopt a machine learning algorithm, combined with the collected operation data and working environment parameters. The machine learning algorithm includes training data and a prediction function. The training data is used to establish a relationship model among the working environment parameters, operation data, and oxygen production efficiency by using the collected operation data and working environment parameters, and determine the operation data at the highest oxygen production efficiency for different working environment parameters. The prediction function: Input the current working environment parameters in real time to predict the optimal operation data;

[0031] Step 3: Monitor the oxygen concentration and pressure produced by the multi-screen bucket array rotation control portable oxygen generator system, and feedback them to the relationship model among the working environment parameters, operation data, and oxygen production efficiency for continuous optimization.

[0032] In Step 2, the working environment parameters are collected in real time by equipped with multiple sensors. The sensors collect temperature, humidity, and air pressure in real time. Since high temperature will reduce the nitrogen adsorption efficiency, the temperature sensor is used to monitor the intake air temperature to judge the change of adsorption efficiency. Since water molecules are usually more easily adsorbed by the adsorbent than other gas molecules, occupying a large number of adsorption sites and reducing the nitrogen adsorption space, the humidity sensor is used to evaluate the influence of air humidity on the molecular sieve. When the humidity is high, the adsorption time needs to be extended; the intake time, intake volume of the first control valve group 20, and the nitrogen adsorption time of the current multi-screen bucket array rotation control portable oxygen generator system are adjusted through the collected temperature and humidity parameters; the air pressure sensor is used to measure the air pressure of the current multi-screen bucket array rotation control portable oxygen generator system and adjust the nitrogen discharge time and nitrogen discharge volume of the multi-screen bucket array rotation control portable oxygen generator system.

[0033] A compressor 60 is provided between the first control valve group 20 and the intake device, and the compressor 60 is connected to the nitrogen discharge pipeline 50. The intake volume and nitrogen discharge volume of the multi-screen bucket array rotation control portable oxygen generator system are adjusted by dynamically adjusting the intake volume and nitrogen discharge volume of the vacuum compressor 60.

[0034] At least 3 molecular sieve barrels 10 are arranged to form one of a cylinder, a cube, and a multi-sided rhombus, so as to reduce the volume of the whole machine and make it smaller. The nano-coating technology is adopted to coat the surface of the molecular sieve in the molecular sieve barrel 10 to reduce the surface pollution of the molecular sieve and improve the adsorption efficiency. The molecular sieve barrel 10 is made of lightweight alloy to reduce the weight of the molecular sieve barrel 10 and enhance the portability of the device. The output end of the gas storage tank 40 is connected to the oxygen outlet nozzle. A jet solenoid valve and / or a proportional valve are connected between the gas storage tank 40 and the oxygen outlet nozzle to control the oxygen output volume of the oxygen outlet nozzle. The nitrogen discharge pipeline 50 is also connected with a second one-way valve 82 to prevent nitrogen from flowing back.

[0035] Embodiment 2

[0036] As Figure 2As shown in the figure, a multi-sieve barrel array rotation control portable oxygen generation system is characterized in that it includes at least three molecular sieve sieve barrels 10. One end of each molecular sieve sieve barrel 10 is respectively connected to an air intake device through a first control valve group 20. The other end of each molecular sieve sieve barrel 10 is respectively connected to one end of a first one-way valve 30. The other end of each first one-way valve 30 is connected to the same gas storage tank 40. Air is pumped into the corresponding molecular sieve sieve barrel 10 through the air intake device to separate oxygen and store it in the gas storage tank 40. Each first control valve group 20 is also respectively connected to a nitrogen discharge pipeline 50 for discharging nitrogen from the molecular sieve sieve barrel 10 that has separated oxygen and stored the oxygen. The rotation control timing is adopted to control the air intake time of one of the first control valve groups 20 and the nitrogen discharge time of the remaining first control valve groups 20, ensuring that when one molecular sieve sieve barrel 10 generates oxygen, at least two of the remaining molecular sieve sieve barrels 10 discharge nitrogen, thereby reducing the pressure of the entire multi-sieve barrel array rotation control portable oxygen generation system by extending the nitrogen discharge time, enabling complete nitrogen discharge, resulting in high oxygen production rate and low machine failure rate.

[0037] Dynamically adjust the operation data of the working state of the multi-sieve barrel array rotation control portable oxygen generation system according to the working environment parameters, so as to improve the oxygen production rate, including the following steps:

[0038] Step 1: Collect the working environment parameters and the operation data of the working state of the multi-sieve barrel array rotation control portable oxygen generation system. The operation data includes the air intake time, nitrogen discharge time of the first control valve group 20, and the air intake volume and nitrogen discharge volume of the multi-sieve barrel array rotation control portable oxygen generation system.

[0039] Step 2: Adopt a machine learning algorithm, combine the collected operation data and working environment parameters. The machine learning algorithm includes training data and a prediction function. The training data is used to establish a relationship model between the working environment parameters, operation data and oxygen production efficiency by using the collected operation data and working environment parameters, and determine the operation data under the highest oxygen production efficiency for different working environment parameters. The prediction function: input the current working environment parameters in real time to predict the optimal operation data.

[0040] Step 3: Monitor the oxygen production concentration and pressure of the multi-sieve barrel array rotation control portable oxygen generation system, and feedback them to the relationship model between the working environment parameters, operation data and oxygen production efficiency for continuous optimization.

[0041] In step two, the working environment parameters are collected in real time by equipped with multiple sensors. The sensors collect temperature, humidity, and air pressure in real time. Since high temperature will reduce the adsorption efficiency of nitrogen, the temperature sensor is used to monitor the intake air temperature and judge the change of adsorption efficiency. Since water molecules are usually more easily adsorbed by the adsorbent than other gas molecules, occupying a large number of adsorption sites and reducing the adsorption space of nitrogen, the humidity sensor is used to evaluate the influence of air humidity on the molecular sieve. When the humidity is high, the adsorption time needs to be extended; the intake time, intake volume of the first control valve group 20 and the nitrogen adsorption time of the current multi-sieve barrel array rotation control portable oxygen generation system are adjusted according to the collected temperature and humidity parameters; the air pressure sensor is used to measure the air pressure of the current multi-sieve barrel array rotation control portable oxygen generation system and adjust the nitrogen discharge time and nitrogen discharge volume of the multi-sieve barrel array rotation control portable oxygen generation system.

[0042] When there is a compressor 60 between the first control valve group 20 and the intake device, the molecular sieve sieve barrels 10 are divided into two in a group. Each group of the molecular sieve sieve barrels 10 is connected with a first branch 70 near the upper part of the first one-way valve 30. The molecular sieve sieve barrels 10 in this group are connected through the first branch 70. A second control valve group 71 is provided on the first branch 70. When nitrogen needs to be discharged, after inputting gas through the intake device of one of the molecular sieve sieve barrels 10 in a group, it passes through the first branch 70 to blow nitrogen to the other molecular sieve sieve barrel 10, and the blowing volume is controlled by the second control valve group 71. A second branch 80 is also connected near the first branch 70. The molecular sieve sieve barrels 10 in this group are connected and equalized through the equalizing valve 81 on the second branch 80.

[0043] At least 3 molecular sieve sieve barrels 10 are arranged to form one of a cylinder, a cube, and a multi-sided rhombus, so as to reduce the volume of the whole machine. The volume is smaller. The nano-coating technology is adopted to coat the surface of the molecular sieve in the molecular sieve sieve barrel 10 to reduce the surface pollution of the molecular sieve and improve the adsorption efficiency. The molecular sieve sieve barrel 10 is made of lightweight alloy to reduce the weight of the molecular sieve sieve barrel 10 and enhance the portability of the equipment. The output end of the gas storage tank 40 is connected to the oxygen outlet nozzle. A jet solenoid valve and / or a proportional valve are connected between the gas storage tank 40 and the oxygen outlet nozzle to control the oxygen output volume of the oxygen outlet nozzle. A second one-way valve 82 is also connected to the nitrogen discharge pipeline 50 to prevent nitrogen from flowing back.

[0044] Advantages of the present invention: The present invention provides a portable oxygen generation system with multi-sieve barrel array rotation control, including at least three molecular sieve sieve barrels 10. One end of each molecular sieve sieve barrel 10 is respectively connected to an air intake device through a first control valve group 20. The other end of each molecular sieve sieve barrel 10 is respectively connected to one end of a first one-way valve 30, and the other end of each first one-way valve 30 is connected to the same gas storage tank 40. Air is injected into the corresponding molecular sieve sieve barrel 10 through the air intake device to separate oxygen and store it in the gas storage tank 40. Each first control valve group 20 is also respectively connected to a nitrogen discharge pipeline 50 for discharging nitrogen from the molecular sieve sieve barrel 10 that has separated oxygen and stored the oxygen. The rotation control timing is adopted to control the air intake time of one first control valve group 20 and the nitrogen discharge time of the remaining first control valve groups 20, ensuring that when one molecular sieve sieve barrel 10 generates oxygen, at least two of the remaining molecular sieve sieve barrels 10 discharge nitrogen, thereby reducing the pressure of the entire portable oxygen generation system with multi-sieve barrel array rotation control by extending the nitrogen discharge time, enabling complete nitrogen discharge, resulting in high oxygen productivity and low machine failure rate.

[0045] The above embodiments merely represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. A portable oxygen production system with a multi-sieve barrel array rotation control, characterized in that: The invention comprises at least three molecular sieve barrels (10), one end of each molecular sieve barrel (10) is connected to an air intake device through a first control valve group (20), the other end of each molecular sieve barrel (10) is connected to one end of a first one-way valve (30), the other end of each first one-way valve (30) is connected to the same gas storage tank (40), air is pumped into the corresponding molecular sieve barrel (10) through the air intake device, oxygen is separated and stored in the gas storage tank (40), and each first control valve group (20) is also connected to a nitrogen exhaust pipe. A channel (50) is used to discharge nitrogen from the molecular sieve barrels (10) that have separated and stored oxygen, and a rotary wheel is used to control the timing to control the air intake time of one of the first control valve groups (20) and the nitrogen discharge time of the remaining first control valve groups (20), so as to ensure that when one molecular sieve barrel (10) is producing oxygen, at least two of the remaining molecular sieve barrels (10) are discharging nitrogen, thereby reducing the pressure of the entire multi-sieve barrel array rotation control portable oxygen production system by extending the nitrogen discharge time, so that the nitrogen can be discharged completely.

2. The portable oxygen production system with multiple screen barrel array rotation control as claimed in claim 1, characterized in that: Dynamically adjusting the operating data of the multi-screen barrel array rotation control portable oxygen production system working state according to the working environment parameters to improve the oxygen production rate includes the following steps: Step 1: collecting working environment parameters and operating data of the working state of the portable oxygen production system controlled by the multi-sieve barrel array rotation, wherein the operating data includes the air intake time and nitrogen exhaust time of the first control valve group (20) and the air intake volume and nitrogen exhaust volume of the portable oxygen production system controlled by the multi-sieve barrel array rotation; Step 2: Using a machine learning algorithm, combined with the collected operating data and working environment parameters, the machine learning algorithm includes training data and prediction functions. The training data uses the collected operating data and working environment parameters to establish a relationship model between working environment parameters, operating data and oxygen production efficiency, and determines the operating data under the highest oxygen production efficiency with different working environment parameters. The prediction function: inputs the current working environment parameters in real time to predict the optimal operating data; Step 3: Monitor the oxygen concentration and pressure of the portable oxygen production system controlled by the multi-sieve barrel array rotation, and feed back to the relationship model between the working environment parameters, operation data and oxygen production efficiency for continuous optimization.

3. The portable oxygen production system with multiple screen barrel array rotation control as claimed in claim 2, characterized in that: In step 2, the working environment parameters are collected in real time by equipping a plurality of sensors. The sensors collect temperature, humidity and air pressure in real time. Since high temperature will reduce the adsorption efficiency of nitrogen, the temperature sensor is used to monitor the intake temperature and judge the change of adsorption efficiency. Since water molecules are usually more easily adsorbed by adsorbents than other gas molecules, they occupy a large number of adsorption sites and reduce the adsorption space of nitrogen. The humidity sensor is used to evaluate the effect of air humidity on the molecular sieve. When the humidity is high, the adsorption time needs to be extended. The intake time and intake volume of the first control valve group (20) and the nitrogen adsorption time of the current multi-sieve barrel array rotation control portable oxygen production system are adjusted by the collected temperature and humidity parameters. The air pressure sensor is used to measure the air pressure of the current multi-sieve barrel array rotation control portable oxygen production system and adjust the nitrogen discharge time and nitrogen discharge volume of the multi-sieve barrel array rotation control portable oxygen production system.

4. The portable oxygen production system with multiple screen barrel array rotation control as claimed in claim 1, characterized in that: When a compressor (60) is provided between the first control valve group (20) and the air intake device and the compressor (60) is connected to the nitrogen exhaust pipeline (50), the air intake and nitrogen exhaust of the portable oxygen production system are cyclically controlled by the multi-sieve barrel array by dynamically adjusting the air intake and nitrogen exhaust of the vacuum compressor (60).

5. The portable oxygen production system with multiple screen barrel array rotation control as claimed in claim 1, characterized in that: When a compressor (60) is provided between the first control valve group (20) and the air intake device, the molecular sieve barrels (10) are divided into groups of two each. The molecular sieve barrels (10) of each group are connected to a first branch (70) near the upper part of the first one-way valve (30). The molecular sieve barrels (10) of the group are connected via the first branch (70). A second control valve group (71) is provided on the first branch (70). When nitrogen discharge is required, the air intake device of one of the molecular sieve barrels (10) in the group is opened to input gas, which then passes through the first branch (70) to blow air into another molecular sieve barrel (10) to discharge nitrogen, and the blowing amount is controlled by the second control valve group (71).

6. The portable oxygen production system with multiple screen barrel array rotation control as claimed in claim 5, characterized in that: A second branch (80) is also connected near the first branch (70), and the molecular sieve barrels (10) of the group are connected and pressure-equalized via a pressure-equalizing valve (81) on the second branch (80).

7. The portable oxygen production system with multiple screen barrel array rotation control as claimed in claim 1, characterized in that: At least three molecular sieve barrels (10) are arranged to form one of a cylinder, a cube, and a polygonal rhombus.

8. The portable oxygen production system with multiple screen barrel array rotation control as claimed in claim 1, characterized in that: Nano coating technology is used to coat the molecular sieve surface of the molecular sieve barrel (10) with a nano coating.

9. The portable oxygen production system with multiple screen barrel array rotation control as claimed in claim 1, characterized in that: The molecular sieve barrel (10) is made of lightweight alloy, thereby reducing the weight of the molecular sieve barrel (10).

10. The portable oxygen production system with multiple screen barrel array rotation control as claimed in claim 1, characterized in that: The output end of the gas storage tank (40) is connected to the oxygen outlet nozzle, and an air injection solenoid valve and / or a proportional valve is connected between the gas storage tank (40) and the oxygen outlet nozzle to control the oxygen output of the oxygen outlet nozzle.

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