An oxygen generation system, oxygen generation method, medium, equipment and product

Abstract

This application discloses an oxygen generation system, method, medium, equipment, and product, including: an air compressor, a flow distribution valve, a first controller, a pressure swing adsorption (PSA) oxygen generation component, an air buffer cylinder, and a gas storage buffer tank. The PSA oxygen generation component includes one or more PSA oxygen generation devices. The air compressor is connected to the PSA oxygen generation component and the air buffer cylinder via the flow distribution valve, which is also connected to the first controller. Multiple PSA oxygen generation devices and air buffer cylinders are respectively connected to the gas storage buffer tank. The air compressor outputs compressed air to the flow distribution valve. The first controller controls the flow distribution valve to distribute the compressed air separately to the oxygen generation component, or simultaneously to the oxygen generation component and the air buffer cylinder. The gas storage buffer tank stores the gas output from the PSA oxygen generation component and the air buffer cylinder. This application solves the problems of low oxygen concentration regulation efficiency and lack of redundancy in the oxygen generation system of a single PSA oxygen generation device.

Description

Technical Field

[0001] This application belongs to the field of air separation, specifically relating to an oxygen generation system, oxygen generation method, storage medium, electronic equipment, and computer program product. Background Technology

[0002] Traditional pressure swing adsorption (PSA) oxygen production equipment typically employs a dual-tower or triple-tower structure, with all adsorption towers working collaboratively to form a single PSA cycle unit. For example, in a dual-tower structure, tower A adsorbs and produces oxygen while tower B desorbs and regenerates, with the two alternating to achieve continuous oxygen production.

[0003] However, in traditional solutions, a single PSA oxygen generator cannot be broken down into multiple independently operating sub-units, resulting in low energy efficiency in oxygen concentration regulation and a lack of redundancy in the oxygen generation system.

[0004] Therefore, existing technologies lack a technical solution that can integrate multiple independent oxygen generating devices and schedule the oxygen generating devices as needed. Summary of the Invention

[0005] The purpose of this application is to provide an oxygen generation system, oxygen generation method, medium, equipment, and product that can solve the problems of low energy efficiency in oxygen concentration regulation and lack of redundancy in a single PSA oxygen generation device.

[0006] In a first aspect, embodiments of this application provide an oxygen generation system, which includes: an air compressor, a flow distribution valve, a first controller, a pressure swing adsorption (PSA) oxygen generation component, an air buffer cylinder, and an air storage buffer tank, wherein the PSA oxygen generation component includes one or more PSA oxygen generation devices; The air compressor is connected to the input end of the pressure swing adsorption oxygen generator and the input end of the air buffer cylinder through the flow distribution valve. The flow distribution valve is also connected to the first controller. The output ends of the multiple pressure swing adsorption oxygen generators and the output end of the air buffer cylinder are respectively connected to the air storage buffer tank. The air compressor is used to output compressed air to the flow distribution valve; The first controller controls the flow distribution valve to distribute the compressed air separately to the pressure swing adsorption oxygen generator, or to distribute it simultaneously to the pressure swing adsorption oxygen generator and the air buffer tank; The gas storage buffer tank is used to store the gas output from the pressure swing adsorption oxygen generation component and the air buffer cylinder.

[0007] Optionally, each of the pressure swing adsorption oxygen generators includes one or more molecular sieve adsorption cylinders.

[0008] Optionally, the pressure swing adsorption oxygen generation assembly includes two of the aforementioned pressure swing adsorption oxygen generation devices.

[0009] Optionally, it may also include a preprocessor connected to the air compressor and the flow distribution valve; the preprocessor is used to process the compressed air and output the processed compressed air to the flow distribution valve.

[0010] Optionally, the flow distribution valve is an electrically controlled proportional valve.

[0011] Optionally, a second controller connected to the air compressor may also be included; the second controller is used to adjust the speed of the air compressor.

[0012] Secondly, embodiments of this application provide an oxygen generation method for use in the oxygen generation system described in the first aspect, the method comprising: Obtain the target oxygen concentration and the target gas flow rate of the compressed air; Based on the target oxygen concentration and the target gas flow rate, determine the number of oxygen generating devices that need to be put into operation and the distribution ratio of the flow distribution valve; Based on the number of oxygen generating devices and the allocation ratio, the flow distribution valve controls the compressed air to be allocated separately to the pressure swing adsorption oxygen generating component, or simultaneously to the pressure swing adsorption oxygen generating component and the air buffer tank, so that the air storage buffer tank outputs air that meets the target oxygen concentration.

[0013] Optionally, determining the number of oxygen generating devices to be put into operation and the distribution ratio of the flow distribution valve based on the target oxygen concentration and the target gas flow rate includes: The operating mode of the oxygen generation system is determined based on the target oxygen concentration. The number of oxygen generating devices and the allocation ratio are determined based on the target oxygen concentration, the operating mode, and the target gas flow rate.

[0014] Optionally, determining the number of oxygen generating devices and the allocation ratio based on the target oxygen concentration, the operating mode, and the target gas flow rate includes: When the working mode is high oxygen mode, the number of oxygen generating devices and a first allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices are determined based on the target oxygen concentration and the target gas flow rate. When the operating mode is low oxygen mode, the number of oxygen generating devices and a second allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices and the air buffer cylinder are determined based on the target oxygen concentration and the target gas flow rate.

[0015] Optionally, determining the number of oxygen generating devices and a first allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices based on the target oxygen concentration and the target gas flow rate includes: Obtain the operating flow range of each of the pressure swing adsorption oxygen generators; The number of oxygen generating devices is determined based on the target oxygen concentration, the target gas flow rate, and the operating flow rate range of each pressure swing adsorption oxygen generating device. If the number of oxygen generating devices is one, then the first allocation ratio is determined to be all compressed air; If there are multiple oxygen generating devices, the first allocation ratio is determined based on the operating flow range.

[0016] Optionally, determining the number of oxygen generating devices and the second allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices and the air buffer tank based on the target oxygen concentration and the target gas flow rate includes: Based on the target oxygen concentration and the target gas flow rate, a first flow rate to be allocated to the pressure swing adsorption oxygen generator and a second flow rate to be allocated to the air buffer cylinder are determined; the second allocation ratio is the ratio of the first flow rate to the second flow rate. The number of oxygen generating devices is determined based on the first flow rate.

[0017] Optionally, determining the number of oxygen generating devices based on the first flow rate includes: Obtain the operating flow range of each of the pressure swing adsorption oxygen generators; The number of oxygen generating devices is determined based on the first flow rate and the operating flow rate range.

[0018] Thirdly, embodiments of this application provide a storage medium that stores computer instructions, which, when executed by a computer, are used to perform the steps of the oxygen production method as described in the second aspect.

[0019] Fourthly, embodiments of this application provide an electronic device including at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the steps of the oxygen generation method as described in the second aspect.

[0020] Fifthly, embodiments of this application provide a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of the oxygen production method as described in the second aspect.

[0021] In this embodiment, by integrating multiple independently controlled pressure swing adsorption (PSA) oxygen generators, and with the first controller controlling the flow distribution valve to allocate compressed air output from the air compressor to the PSA oxygen generator component individually, or simultaneously to the PSA oxygen generator component and the air buffer tank, compared to the traditional single PSA oxygen generator which cannot be divided into multiple independent sub-units, this embodiment can schedule one or more oxygen generators to work as needed according to actual requirements, achieving step-wise adjustment of oxygen production. Furthermore, compared to the traditional outlet mixing method, which separates and then dilutes all the air, wasting separation energy, this embodiment bypasses a portion of the compressed air directly to the air buffer tank to mix with high-concentration oxygen in the storage buffer tank, avoiding the energy waste of separation and dilution, and improving the energy efficiency of oxygen concentration adjustment. At the same time, when one oxygen generator fails, the first controller can schedule the remaining oxygen generators to continue working, with the system degraded rather than completely failing, enhancing system redundancy. Attached Figure Description

[0022] Figure 1 This is a system architecture diagram of an oxygen generation system provided in an embodiment of this application; Figure 2 This is a flowchart of the steps of an oxygen production method provided in an embodiment of this application; Figure 3 This is a schematic diagram of the entire process of an oxygen production method provided in an embodiment of this application; Figure 4 This is a schematic diagram of the hardware structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0023] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0024] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0025] The oxygen generation system and method provided in this application will be described in detail below with reference to the accompanying drawings and through specific embodiments and application scenarios.

[0026] Reference Figure 1 This is a system architecture diagram of an oxygen generation system provided in an embodiment of this application, specifically including: an air compressor 101, a flow distribution valve 102, a first controller 103, a pressure swing adsorption oxygen generation component 104, an air buffer cylinder 105, and an air storage buffer tank 106. The pressure swing adsorption oxygen generation component includes one or more pressure swing adsorption oxygen generation devices. The air compressor 101 is connected to the input end of the pressure swing adsorption oxygen generator 104 and the input end of the air buffer tank 105 through the flow distribution valve 102. The flow distribution valve 102 is also connected to the first controller 103. The output ends of the multiple pressure swing adsorption oxygen generators and the output end of the air buffer tank 105 are respectively connected to the air storage buffer tank 106. The air compressor 101 is used to output compressed air to the flow distribution valve 102; The first controller 103 controls the flow distribution valve 102 to distribute the compressed air separately to the pressure swing adsorption oxygen generator 104, or to distribute it simultaneously to the pressure swing adsorption oxygen generator 104 and the air buffer tank 105. The gas storage buffer tank 106 is used to store the gas output from the pressure swing adsorption oxygen generation component 104 and the air buffer cylinder 105.

[0027] In this embodiment, the air compressor 101 is connected to the pressure swing adsorption (PSA) oxygen generator assembly 104 and the air buffer tank 105 via a flow distribution valve 102. The flow distribution valve 102 distributes the compressed air output from the air compressor 101 to the PSA oxygen generator assembly 104 and the air buffer tank 105. The air compressor 101 is an air compressor, i.e., a compressor that uses air as its working medium. The air buffer tank 105 is a pressure-bearing, smooth-walled, sealed container. Its pressure-bearing characteristics allow it to withstand air pressure equivalent to the output pressure of the air compressor 101, ensuring that the stored compressed air can be smoothly output to the air storage buffer tank 106 under system back pressure. Its smooth inner wall design reduces gas flow resistance, lowers pressure loss, and ensures stable airflow output.

[0028] In practical applications, if all compressed air is distributed to the air buffer tank 105, the pressure swing adsorption oxygen generator 104 will have no air source input and will be unable to produce high-concentration oxygen. The air storage buffer tank 106 will only output compressed air, thus losing the core function of the oxygen generation system. If it is only distributed to the pressure swing adsorption oxygen generator 104, it can only output a fixed concentration of high-concentration oxygen, which cannot meet the user's demand for specific low-concentration air.

[0029] Therefore, the embodiments of this application adopt two allocation methods: separately allocated to the pressure swing adsorption oxygen generation component 104 or simultaneously allocated to the pressure swing adsorption oxygen generation component 104 and the air buffer cylinder 105. The former is used for high concentration demand scenarios, and the latter is used for low concentration precise adjustment scenarios, ensuring that at least one oxygen generation device is always in operation to maintain the oxygen generation capacity of the system and achieve flexible adjustment of oxygen concentration.

[0030] Specifically, the first controller 103 is communicatively connected to the flow distribution valve 102. The first controller 103 controls the flow distribution valve 102 to distribute compressed air to the pressure swing adsorption (PSA) oxygen generator assembly 104 and the air buffer tank 105. When the user requires high-concentration air, the first controller 103 controls the flow distribution valve 102 to distribute all compressed air to the PSA oxygen generator assembly 104, without distributing compressed air to the air buffer tank 105. When the user requires low-concentration air, the first controller 103 controls the flow distribution valve 102 to distribute a portion of the compressed air to the PSA oxygen generator assembly 104 and the remaining portion to the air buffer tank 105.

[0031] The pressure swing adsorption oxygen generation component 104 includes one or more pressure swing adsorption oxygen generation devices. Each pressure swing adsorption oxygen generation device is used to separate oxygen and nitrogen from the input compressed air to generate high-concentration oxygen. At this time, the output oxygen concentration is about 93%. The air buffer 105 is used to store compressed air. The gas it outputs is ordinary air. At this time, the output oxygen concentration is about 21%.

[0032] To achieve precise oxygen concentration regulation, whenever gas is generated in the pressure swing adsorption (PSA) oxygen generator assembly 104 and the air buffer tank 105, the generated gas is output to the gas storage buffer tank 106. This allows the gas storage buffer tank 106 to thoroughly mix the received gas to obtain air. The air output from the gas storage buffer tank 106 after mixing refers to a mixed gas with an adjustable oxygen concentration between 21% and 95%. Its specific concentration depends on the mixing ratio of the high-concentration oxygen output from the PSA oxygen generator assembly 104 and the compressed air output from the air buffer tank 105.

[0033] In existing technologies, if it is necessary to adjust the oxygen concentration, air is usually directly mixed into the high-concentration oxygen produced. Although this method can reduce the oxygen concentration, all compressed air must first be separated by molecular sieves before being partially diluted, resulting in energy waste in the separation process. Moreover, the mixing ratio is difficult to control precisely, leading to large fluctuations in the output concentration. In addition, frequently changing the PSA cycle parameters to adjust the concentration will also affect the service life of the molecular sieve.

[0034] Therefore, in this embodiment, the compressed air is distributed as needed by the flow distribution valve 102, and only the necessary proportion of compressed air is sent to the oxygen generating equipment in the pressure swing adsorption oxygen generating assembly 104 for separation. The remaining compressed air is directly bypassed to the air buffer cylinder 105 for subsequent mixing, thereby avoiding the energy waste of separating all the air first and then partially diluting it. At the same time, the distribution ratio is precisely controlled by the first controller 103 to ensure that air with a stable concentration can be output at any target concentration.

[0035] In this embodiment, by integrating multiple independently controlled pressure swing adsorption (PSA) oxygen generators, and with the first controller controlling the flow distribution valve to allocate compressed air output from the air compressor to the PSA oxygen generator component individually, or simultaneously to the PSA oxygen generator component and the air buffer tank, compared to the traditional single PSA oxygen generator which cannot be divided into multiple independent sub-units, this embodiment can schedule one or more oxygen generators to work as needed according to actual requirements, achieving step-wise adjustment of oxygen production. Furthermore, compared to the traditional outlet mixing method, which separates and then dilutes all the air, wasting separation energy, this embodiment bypasses a portion of the compressed air directly to the air buffer tank to mix with high-concentration oxygen in the storage buffer tank, avoiding the energy waste of separation and dilution, and improving the energy efficiency of oxygen concentration adjustment. At the same time, when one oxygen generator fails, the first controller can schedule the remaining oxygen generators to continue working, with the system degraded rather than completely failing, enhancing system redundancy.

[0036] In one embodiment of this application, each of the pressure swing adsorption oxygen generators includes one or more molecular sieve adsorption cylinders.

[0037] In this embodiment, each pressure swing adsorption (PSA) oxygen generator includes one or more molecular sieve adsorption cylinders. A molecular sieve adsorption cylinder refers to an adsorption container filled with zeolite molecular sieves, used to selectively adsorb nitrogen under pressure, allowing oxygen to pass through, thereby achieving oxygen-nitrogen separation. Preferably, each PSA oxygen generator includes two molecular sieve adsorption cylinders.

[0038] Specifically, one or more molecular sieve adsorption cylinders constitute a complete PSA adsorption tower pair, working together to continuously produce high-concentration oxygen. Taking a complete PSA adsorption tower pair consisting of two molecular sieve adsorption cylinders as an example, when the first molecular sieve adsorption cylinder in each PSA adsorption tower pair is in the adsorption stage, compressed air enters the cylinder, and the molecular sieve adsorbs nitrogen under pressure, while oxygen passes through and is output. At this time, the second molecular sieve adsorption cylinder is in the desorption and regeneration stage, and the adsorbed nitrogen is discharged by depressurization. That is, when the first molecular sieve adsorption cylinder is close to adsorption saturation, the system switches the valve to allow the second molecular sieve adsorption cylinder to enter the adsorption stage, while the first molecular sieve adsorption cylinder enters the desorption and regeneration stage. Each pressure swing adsorption oxygen generator in the embodiments of this application, based on the alternating adsorption and desorption of two molecular sieve adsorption cylinders, can achieve continuous and stable high-concentration oxygen output.

[0039] In one embodiment of this application, an adsorption cylinder switching valve, independently controlled by a first controller 103, is installed at the air inlet of each molecular sieve adsorption cylinder to control whether compressed air enters the molecular sieve adsorption cylinder. Preferably, the adsorption cylinder switching valve is a two-position two-way switching valve. The first controller 103 is also connected to each adsorption cylinder switching valve to control the valve's on / off state by outputting a switching signal.

[0040] In this embodiment of the application, by setting an independently controlled adsorption cylinder switching valve, the first controller 103 can precisely control the air inlet and outlet of the corresponding molecular sieve adsorption cylinder according to the oxygen generating equipment that needs to be put into operation, so that the system can flexibly schedule the working status of each oxygen generating equipment and realize on-demand operation and precise management.

[0041] This application embodiment integrates one or more molecular sieve adsorption cylinders into an independent pressure swing adsorption (PSA) oxygen generator, allowing each PSA adsorption tower pair to constitute a complete oxygen generator that can operate independently of other oxygen generators. This enables on-demand scheduling among multiple oxygen generators; when oxygen demand is low, only one generator needs to be activated, while the others remain in standby mode, thus reducing energy consumption and extending the molecular sieve lifespan. Furthermore, if one oxygen generator fails, the others can continue operating, enhancing system redundancy and reliability.

[0042] In one embodiment of this application, the pressure swing adsorption oxygen generation component 104 includes two pressure swing adsorption oxygen generation devices.

[0043] In practical applications, if only one pressure swing adsorption (PSA) oxygen generator is set up, the system degenerates into a traditional single PSA unit architecture, which cannot achieve on-demand scheduling and redundancy backup. If three or more PSA oxygen generators are set up, although theoretically more fine-grained scheduling can be provided, the system cost, size and control complexity will be significantly increased. Moreover, for most application scenarios, the operation of a single device or the simultaneous operation of two devices can fully meet the requirements of step adjustment of oxygen production and the need for the other device to continue to work when a single device fails.

[0044] Therefore, in order to achieve a balance between system performance and cost and volume, the number of pressure swing adsorption oxygen generation devices in the pressure swing adsorption oxygen generation component 104 is preferably two, that is, the oxygen generation system includes four molecular sieve adsorption cylinders, and any two molecular sieve adsorption cylinders form a pressure swing adsorption oxygen generation component 104.

[0045] This application embodiment integrates two pressure swing adsorption oxygen generation components 104 into the same oxygen generation system. Each device consists of two molecular sieve adsorption cylinders, allowing the system to flexibly select to activate one device or activate both devices simultaneously.

[0046] In one embodiment of this application, a preprocessor connected to the air compressor 101 and the flow distribution valve 102 is further included; the preprocessor is used to process the compressed air and output the processed compressed air to the flow distribution valve 102.

[0047] In this embodiment of the application, the oxygen generation system also includes a preprocessor connected to the air compressor 101 and the flow distribution valve 102. The preprocessor needs to process the compressed air output by the air compressor and then output the processed compressed air to the flow distribution valve 102. The flow distribution valve 102 will then distribute the processed compressed air to the pressure swing adsorption oxygen generation component 104 and another part to the air buffer cylinder 105.

[0048] Specifically, the preprocessor is used to cool, remove water, and filter the compressed air output by the air compressor 101 to remove heat, liquid water, oil mist, and dust particles from the compressed air, so that it reaches a clean and dry state.

[0049] This application embodiment purifies compressed air by setting a preprocessor between the air compressor 101 and the flow distribution valve 102, ensuring that the cleanliness of the compressed air entering the pressure swing adsorption oxygen generation component 104 meets the working requirements of the molecular sieve, thereby extending the service life of the molecular sieve and ensuring the long-term stable operation of the system.

[0050] In one embodiment of this application, the flow distribution valve 102 is an electrically controlled proportional valve.

[0051] In this embodiment, since the flow distribution valve 102 needs to accurately distribute compressed air to the pressure swing adsorption oxygen generator 104 and the air buffer cylinder 105 according to the instructions of the first controller 103 in order to achieve precise control of the target oxygen concentration, in order to meet the requirements of precise adjustment of the distribution ratio and rapid response, the flow distribution valve 102 is preferably an electronically controlled proportional valve.

[0052] Among them, the electronically controlled proportional valve refers to a proportional control valve that can continuously and linearly adjust the valve opening after receiving an analog electrical signal, thereby accurately controlling the flow rate of each outlet. Compared with ordinary on / off valves that can only achieve full opening or full closing, the electronically controlled proportional valve can effectively achieve continuous adjustment of the distribution ratio, and the adjustment process is smooth and the response is rapid.

[0053] In this embodiment, by using an electronically controlled proportional valve as a flow distribution valve 102, the first controller 103 can accurately control the distribution ratio of compressed air, thereby achieving continuous and precise adjustment of oxygen concentration, avoiding concentration fluctuations caused by step control of the switching valve, and improving the output stability of the system.

[0054] In one embodiment of this application, a second controller connected to the air compressor 101 is further included; the second controller is used to adjust the speed of the air compressor.

[0055] In this embodiment of the application, in addition to the first controller 103, the oxygen generation system also includes a second controller that is communicatively connected to the air compressor 101. The second controller is used to adjust the speed of the air compressor 101 to adjust the gas flow rate of the compressed air output, thereby matching different gas source requirements.

[0056] In existing technologies, achieving high-flow-rate diffused oxygen supply requires high-power, high-flow-rate air compressors, resulting in high equipment costs, large size, high energy consumption, and high noise levels. This application's embodiment integrates multiple independent pressure swing adsorption (PSA) oxygen generators with an air buffer cylinder 105, eliminating the need for the air compressor 101 to match the maximum processing capacity of the molecular sieve. A small to medium-power air compressor 101 is sufficient to meet the high-flow-rate oxygen supply demand. Simultaneously, a second controller adjusts the air compressor 101's speed in real-time based on actual oxygen demand, enabling efficient operation across a wide load range and outputting compressed air flow matching actual needs. This avoids energy waste, mechanical wear, and noise pollution caused by the air compressor 101 constantly operating at full or high load, thus minimizing overall energy consumption while meeting the high-flow-rate oxygen supply requirements.

[0057] Meanwhile, in the prior art, when the oxygen demand is low, the system usually adopts frequency reduction operation or intermittent start-stop mode to adjust. At this time, the air compressor 101 and the working molecular sieve tower deviate from their respective optimal operating conditions, resulting in a significant increase in energy consumption. However, in the embodiment of this application, while adjusting the air compressor speed through the second controller, the number of oxygen generating devices put into operation can also be selected in conjunction with the first controller, so that the working air compressor and oxygen generating devices can operate near their respective optimal operating conditions, thereby maintaining a high level of energy efficiency even when the flow demand is low.

[0058] In one embodiment, to simplify the system structure and reduce hardware costs, a speed control function can be integrated into the first controller 103. That is, the first controller 103 is connected to both the flow distribution valve 102 and the air compressor 101, and the same controller performs flow distribution ratio control and air compressor speed regulation. The second controller is not necessary and can be set independently according to actual design requirements. Similarly, a flow distribution ratio control function can also be integrated into the second controller to achieve the function of the first controller 103. This application embodiment does not limit this.

[0059] This application embodiment uses a second controller to adjust the speed of the air compressor, enabling the oxygen generation system to dynamically adjust the supply of compressed air, avoiding energy waste caused by the air compressor always operating at full load, while reducing unnecessary mechanical wear, extending the life of the air compressor, and reducing system operating noise.

[0060] In one embodiment of this application, the oxygen generation system further includes a human-machine interface component, which provides a touch screen interface to the user for setting operating parameters and displaying the real-time status of the system, such as the working time, current concentration, current flow rate, and energy consumption of each oxygen generation device.

[0061] This application embodiment uses a human-computer interaction component to allow users to intuitively understand the real-time operation of the system and flexibly adjust the settings parameters according to actual needs.

[0062] Reference Figure 2 This is a flowchart of an oxygen production method provided in an embodiment of this application, which specifically includes the following steps: Step 201: Obtain the target oxygen concentration and the target gas flow rate of the compressed air; In this embodiment, the target oxygen concentration and target gas flow rate set by the user can be obtained through the human-computer interaction component. The target oxygen concentration refers to the oxygen concentration of the air the user expects to output, such as 30%, 50%, or 90%; the target gas flow rate refers to the volumetric flow rate of compressed air required based on the user's expected target oxygen concentration, typically expressed in L / min.

[0063] Specifically, the rotational speed of the air compressor 101 is controlled by the second controller so that the air compressor 101 generates compressed air that matches the target gas flow rate.

[0064] Step 202: Based on the target oxygen concentration and the target gas flow rate, determine the number of oxygen generating devices that need to be put into operation and the distribution ratio of the flow distribution valve 102; In existing technologies, traditional PSA oxygen generators can only output a fixed concentration of high-concentration oxygen. If the concentration needs to be adjusted, the outlet is usually mixed or the PSA circulation parameters are changed, which has problems such as inaccurate control, large fluctuations in output concentration, and lag in response.

[0065] Therefore, in this embodiment, based on the target oxygen concentration and target gas flow rate, the number of oxygen generating devices required and the allocation ratio of the flow distribution valve 102 can be determined to precisely match user needs. Specifically, the total flow rate of output air can be precisely controlled by the number of oxygen generating devices to match the target gas flow rate set by the user; the mixing ratio of the high-concentration oxygen output from the pressure swing adsorption oxygen generating component 104 and the compressed air output from the air buffer cylinder 105 can be precisely controlled to match the target oxygen concentration set by the user. This embodiment achieves precise matching of the user's dual needs for concentration and flow rate through the coordinated control of the number of oxygen generating devices and the allocation ratio.

[0066] The number of oxygen generating devices refers to the number of pressure swing adsorption oxygen generating components 104 that need to be activated simultaneously; the distribution ratio refers to the ratio of the flow rate of compressed air distributed by the flow distribution valve 102 to the pressure swing adsorption oxygen generating components 104 and the air buffer cylinder 105.

[0067] Step 203: According to the number of oxygen generating devices and the allocation ratio, control the flow distribution valve 102 to allocate the compressed air separately to the pressure swing adsorption oxygen generating component 104, or simultaneously to the pressure swing adsorption oxygen generating component 104 and the air buffer tank 105, so that the air storage buffer tank 106 outputs air that meets the target oxygen concentration.

[0068] In this embodiment, after determining the number and allocation ratio of oxygen generating devices, the first controller 103 controls the flow distribution valve 102 based on the number and ratio to distribute the pre-processed compressed air to at least one pressure swing adsorption (PSA) oxygen generating component 104, or simultaneously to at least one PSA oxygen generating component 104 and an air buffer tank 105. Subsequently, the high-concentration oxygen output from the PSA oxygen generating component 104 and the compressed air output from the air buffer tank 105 enter the gas storage buffer tank 106 together, and are fully mixed in the tank before being output to ensure that the two gases are uniformly mixed to achieve the target oxygen concentration.

[0069] This embodiment of the application obtains the target oxygen concentration and target gas flow rate set by the user, and then accurately calculates the number of oxygen generating devices and the flow distribution ratio that need to be put into operation. Finally, the corresponding distribution action is realized through the flow distribution valve 102, realizing a complete closed-loop control from user needs to physical execution. Compared with the traditional solution, this embodiment of the application can dynamically schedule the number of oxygen generating devices and accurately control the distribution ratio (bypass mixing ratio) according to user needs. While ensuring the accuracy of output concentration, it avoids the energy waste of the traditional outlet mixing method and significantly improves the energy efficiency and response speed of the system.

[0070] In one embodiment of this application, determining the number of oxygen generating devices to be put into operation and the allocation ratio of the flow distribution valve based on the target oxygen concentration and the target gas flow rate includes: The operating mode of the oxygen generation system is determined based on the target oxygen concentration. The number of oxygen generating devices and the allocation ratio are determined based on the target oxygen concentration, the operating mode, and the target gas flow rate.

[0071] In existing technologies, a single, high-concentration oxygen is typically output at a fixed level, making it impossible to intelligently coordinate the number of oxygen generators and the blending ratio according to the user's actual needs. In this embodiment, since the target oxygen concentration represents the user's core requirement for the quality of the output gas, it is necessary to determine the operating mode of the oxygen generation system based on the target oxygen concentration. The operating modes include a high-oxygen mode for characterizing the output of high-concentration oxygen and a low-oxygen mode for characterizing the output of medium-to-low-concentration oxygen.

[0072] Specifically, by setting an oxygen threshold in advance, the target oxygen concentration is compared with the oxygen threshold to determine the working mode of the oxygen generation system at the target oxygen concentration.

[0073] In one embodiment, considering that the normal oxygen concentration required for human respiration is 21% and the typical output concentration of a molecular sieve oxygen generator is 93%, if the threshold is set too low, almost all needs will be classified as high oxygen mode, losing the meaning of mode differentiation; if the threshold is set too high, the coverage of low oxygen mode will be too wide, which may lead to bypass mixing still being activated when there is a high concentration demand, resulting in unnecessary energy consumption. Therefore, this embodiment of the application preferably sets the oxygen threshold to 93%. In this case, if the target oxygen concentration is greater than or equal to 93%, the working mode is determined to be high oxygen mode; if the target oxygen concentration is less than 93%, the working mode is determined to be low oxygen mode.

[0074] It should be noted that in practical application scenarios, since the oxygen content of air is approximately 21%, the oxygen concentration in the air output by the embodiments of this application will not be lower than 21%. In this case, the oxygen concentration range corresponding to the low oxygen mode can be further limited to 21% to the oxygen threshold, for example, 21%-93%.

[0075] After determining the operating mode, it can be determined whether the air buffer tank 105 needs to be put into operation for different operating modes. Specifically, when the operating mode is high oxygen mode, since the target oxygen concentration is high, the high-concentration oxygen output from the oxygen generator alone can meet the demand, or only a very small amount needs to be mixed in. At this time, the air buffer tank 105 does not need to be put into operation, and the flow distribution valve will distribute all the compressed air to the oxygen generator 104. When the operating mode is low oxygen mode, the high-concentration oxygen output from the oxygen generator alone is too high and needs to be diluted by mixing in air. Therefore, the air buffer tank 105 needs to be put into operation, and the flow distribution valve needs to distribute compressed air to both the oxygen generator 104 and the air buffer tank 105 simultaneously.

[0076] After determining whether the air buffer cylinder 105 needs to be put into operation, the number and allocation ratio of oxygen generating equipment are further determined based on the target oxygen concentration and target gas flow rate.

[0077] This application's embodiments differentiate operating modes by introducing a target oxygen concentration, and adopt different control strategies for high-oxygen and low-oxygen modes respectively. This avoids energy waste caused by using bypass mixing in all scenarios, while ensuring that the mixing ratio can be accurately controlled when low oxygen demand is required, thus achieving a balance between energy efficiency and flexibility.

[0078] In one embodiment of this application, determining the number of oxygen generating devices and the allocation ratio based on the target oxygen concentration, the operating mode, and the target gas flow rate includes: When the working mode is high oxygen mode, the number of oxygen generating devices and a first allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices are determined based on the target oxygen concentration and the target gas flow rate. When the operating mode is low oxygen mode, the number of oxygen generating devices and a second allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices and the air buffer cylinder are determined based on the target oxygen concentration and the target gas flow rate.

[0079] In this embodiment of the application, after determining whether the air buffer cylinder 105 needs to be put into operation based on the working mode, the number and allocation ratio of oxygen generating equipment under different working modes are further determined based on the target oxygen concentration and target gas flow rate.

[0080] Specifically, when the working mode is high oxygen mode, the air buffer cylinder 105 does not need to be put into operation. The number of oxygen generating devices is determined according to the target gas flow rate, and the first allocation ratio is to allocate all compressed air to the oxygen generating devices. When the working mode is low oxygen mode, the air buffer cylinder 105 needs to be put into operation. The allocation ratio is calculated according to the target oxygen concentration and the target gas flow rate, and the number of oxygen generating devices is determined according to the flow rate allocated to the oxygen generating devices.

[0081] In high-oxygen mode, the distribution logic is simplified, with all compressed air entering the oxygen generator. The flow rate and concentration requirements are met by adjusting the number of generators and the compressor speed. In low-oxygen mode, a bypass mixing mechanism is introduced to precisely calculate the distribution ratio, achieving accurate control of the target concentration. Clearly, this embodiment of the application, by developing differentiated control strategies for high-oxygen and low-oxygen modes, ensures both high-efficiency output in high-oxygen mode and flexible adjustment in low-oxygen mode, balancing system energy efficiency and output accuracy.

[0082] In one embodiment of this application, determining the number of oxygen generating devices and a first allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices based on the target oxygen concentration and the target gas flow rate includes: Obtain the operating flow range of each of the pressure swing adsorption oxygen generators; The number of oxygen generating devices is determined based on the target oxygen concentration, the target gas flow rate, and the operating flow rate range of each pressure swing adsorption oxygen generating device. If the number of oxygen generating devices is one, then the first allocation ratio is determined to be all compressed air; If there are multiple oxygen generating devices, the first allocation ratio is determined based on the operating flow range.

[0083] In this embodiment, each pressure swing adsorption (PSA) oxygen generator has its optimal operating flow rate range, which refers to the optimal operating flow rate interval [Qmin, Qmax] of the molecular sieve adsorption cylinder in each PSA oxygen generator. Within this range, the molecular sieve has the highest adsorption efficiency and the lowest energy consumption. Based on this operating flow rate range, the optimal operating flow rate point Q0 of each PSA oxygen generator can be determined, preferably the midpoint between Qmin and Qmax or the point of highest efficiency. Based on this, the number of oxygen generators can be determined by combining the target oxygen concentration and the target gas flow rate.

[0084] It should be noted that since a pressure swing adsorption (PSA) oxygen generator consists of two molecular sieve adsorption cells, and these two cells work alternately in the PSA cycle (i.e., one adsorbs while the other desorbs), the overall continuous output capacity of the equipment is equivalent to the gas output capacity of a single molecular sieve adsorption cell during the adsorption phase. In other words, the optimal operating flow rate range of the equipment coincides with the optimal operating flow rate range of a single molecular sieve adsorption cell, and the optimal operating flow rate point of the equipment is also equal to Q0. For example, if the optimal operating flow rate of a single molecular sieve adsorption cell is 5 L / min, then the optimal operating flow rate for continuous oxygen production of the entire equipment is also 5 L / min. Therefore, the operating flow rate parameters of the equipment can be directly determined based on the operating flow rate characteristics of a single molecular sieve adsorption cell.

[0085] Specifically, firstly, based on the difference between the target oxygen concentration and the air concentration output from the air buffer, and the difference between the high-concentration oxygen concentration output from the oxygen generator and the air concentration, combined with the target gas flow rate, the required gas flow rate to be processed by the oxygen generator is determined. Therefore, the higher the target oxygen concentration, the larger the gas flow rate required by the oxygen generator; conversely, the lower the target oxygen concentration, the smaller the gas flow rate required. Then, based on the required processing flow rate and the optimal operating flow rate of a single oxygen generator, the number of oxygen generators can be determined. For example, if the required processing flow rate is 8 L / min and the optimal operating flow rate of a single unit is 5 L / min, then two units are needed.

[0086] In one embodiment, to ensure that each pressure swing adsorption (PSA) oxygen generator operates near its optimal condition, thereby improving overall energy efficiency and extending equipment life, it can be verified whether the actual operating flow rate of each generator falls within its optimal operating flow rate range. If the actual operating flow rate deviates significantly from the optimal operating point, the number of oxygen generators can be appropriately increased to ensure that each generator operates at a better operating point, thus improving overall energy efficiency.

[0087] After determining the number of oxygen generating units, a first allocation ratio for characterizing the distribution of compressed air to each pressure swing adsorption oxygen generating unit can be further determined.

[0088] Specifically, if there is only one oxygen generator, it means that a single pressure swing adsorption (PSA) oxygen generator can meet the target flow rate and concentration requirements. In this case, the first allocation ratio can be directly determined as all compressed air is allocated to the oxygen generator. If there are multiple oxygen generators, the total compressed air is allocated to each device as needed based on the working flow range of each device, so that the actual working flow of each device falls within its optimal working flow range.

[0089] In one embodiment, before distributing compressed air based on the first distribution ratio, the system can also prioritize the use of equipment with shorter cumulative working time or that has not been used recently, based on the working flow range of each pressure swing adsorption oxygen generator and the number of oxygen generators, in order to achieve balanced use of each device and extend the overall system life.

[0090] This application embodiment accurately calculates the required number of oxygen generating devices by using the optimal operating flow range and combining the target oxygen concentration and target gas flow rate. Based on this, a first allocation ratio is determined so that each oxygen generating device put into operation operates near its optimal operating condition. This maximizes system energy efficiency and balances equipment lifespan while meeting user needs.

[0091] In one embodiment of this application, determining the number of oxygen generating devices and a second allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices and the air buffer cylinder based on the target oxygen concentration and the target gas flow rate includes: Based on the target oxygen concentration and the target gas flow rate, a first flow rate to be allocated to the pressure swing adsorption oxygen generator and a second flow rate to be allocated to the air buffer cylinder are determined; the second allocation ratio is the ratio of the first flow rate to the second flow rate. The number of oxygen generating devices is determined based on the first flow rate.

[0092] In this embodiment, when the operating mode is low-oxygen mode, compressed air needs to be simultaneously distributed to both the pressure swing adsorption (PSA) oxygen generator and the air buffer tank 105 within the PSA oxygen generator assembly 104. The first flow rate distributed to the PSA oxygen generator is used to produce high-concentration oxygen, while the second flow rate distributed to the air buffer tank 105 is used to dilute the oxygen concentration. After mixing in the air storage buffer tank 106, air with a target oxygen concentration is output. The ratio of the first flow rate to the second flow rate is the aforementioned second distribution ratio.

[0093] Specifically, the first flow rate Q1 and the second flow rate Q2 are calculated using the following formula: C1=(Q1×C2+Q2×C3) / (Q1+Q2) Q3 = (Q1 + Q2) Wherein, C1 is the target oxygen concentration, C2 is the oxygen threshold, preferably 93%, C3 is the oxygen concentration of compressed air, typically 21%, and Q3 is the target gas flow rate.

[0094] Based on the above formula, it can be seen that the higher the target oxygen concentration, the larger the required first flow rate and the smaller the required second flow rate; the lower the target oxygen concentration, the smaller the required first flow rate and the larger the required second flow rate.

[0095] After determining the first flow rate that needs to be allocated to the pressure swing adsorption oxygen generator, it is also necessary to further determine the number of oxygen generators based on the first flow rate.

[0096] This application embodiment accurately calculates the first and second flow rates, enabling the blending ratio in low-oxygen mode to precisely match the target oxygen concentration set by the user. This avoids the energy waste of traditional outlet blending methods that involve full separation followed by partial dilution. Simultaneously, the number of oxygen generating devices is determined by the first flow rate, ensuring that the number of devices is correlated with the first flow rate. This ensures that the number of oxygen generating devices put into operation matches the actual demand, avoiding energy efficiency losses caused by equipment redundancy or insufficiency. This achieves efficient coordination between blending accuracy and equipment scheduling.

[0097] In one embodiment of this application, determining the number of oxygen generating devices based on the first flow rate includes: Obtain the operating flow range of each of the pressure swing adsorption oxygen generators; The number of oxygen generating devices is determined based on the first flow rate and the operating flow rate range.

[0098] In this embodiment, determining the number of oxygen generating devices based on the first flow rate is similar to determining the number of oxygen generating devices in the hyperoxia mode. Specifically, the number of oxygen generating devices is obtained based on the first flow rate and the optimal operating flow rate point of a single oxygen generating device, and is verified and adjusted according to actual operating conditions so that the actual operating flow rate of each oxygen generating device in operation falls within the optimal operating flow rate range.

[0099] This application embodiment links the first flow rate with the working flow rate range of the oxygen generator, so that the number of oxygen generators put into use matches the actual oxygen production demand in the low oxygen mode. This avoids both insufficient oxygen production capacity due to insufficient equipment and redundant equipment causing some equipment to be in an inefficient state for a long time. Thus, while ensuring the output concentration, it achieves an optimized balance between equipment utilization and system energy efficiency.

[0100] Meanwhile, it should be noted that the oxygen production method provided in this application embodiment enables the gas flow rate output by the gas storage buffer tank 106 to be much greater than the gas flow rate output by the air compressor 101, i.e., the target gas flow rate, thereby enabling a low-flow air compressor to meet the demand for high-flow oxygen supply.

[0101] Reference Figure 3 This is a schematic diagram of the entire process of an oxygen production method provided in an embodiment of this application, which specifically includes the following steps: Step 301: Obtain the target oxygen concentration and target gas flow rate; The operating mode of the oxygen generation system is determined based on the target oxygen concentration; if the operating mode is high oxygen mode, proceed to step 302; if the operating mode is low oxygen mode, proceed to step 303.

[0102] Step 302: When the working mode is high oxygen mode, determine the first distribution ratio and the number of oxygen generating devices based on the target oxygen concentration and the target gas concentration. In high-oxygen mode, there is no need for the air buffer tank to be put into operation. Therefore, the compressed air is distributed to the oxygen generating equipment that needs to be put into operation based on the first distribution ratio control flow distribution valve.

[0103] Step 303: When the working mode is low oxygen mode, determine the second distribution ratio and the number of oxygen generating devices based on the target oxygen concentration and the target gas concentration. In low-oxygen mode, the air buffer tank needs to be put into operation. Therefore, the compressed air is distributed to the oxygen generating equipment and the air buffer tank that need to be put into operation based on the second distribution ratio control flow distribution valve.

[0104] Step 304: Output air with the target oxygen concentration.

[0105] The specific calculation methods and control logic involved in steps 301-304 above are the same as those in the aforementioned embodiments. This description is only for the sake of the completeness of the flowchart, so the repeated content will not be repeated here.

[0106] It should be noted that, for the sake of simplicity, the method embodiments are all described as a series of actions. However, those skilled in the art should understand that the embodiments of this application are not limited to the described order of actions, because according to the embodiments of this application, some steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also understand that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of this application.

[0107] This application also provides a storage medium that stores computer instructions. When the computer executes the computer instructions, it is used to perform the various processes of the above-described oxygen production method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0108] The processor is the processor in the electronic device described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk.

[0109] This application also provides an electronic device, including a processor 4010, a memory 409, and a program or instructions stored in the memory 409 and executable on the processor 4010. When the program or instructions are executed by the processor 4010, they implement the various processes of the above-described oxygen production method embodiments and achieve the same technical effects. To avoid repetition, they will not be described again here.

[0110] It should be noted that the electronic devices in the embodiments of this application include the mobile electronic devices and non-mobile electronic devices described above.

[0111] Figure 4 A schematic diagram of the hardware structure of an electronic device to implement an embodiment of this application. The electronic device 400 includes, but is not limited to, components such as: radio frequency unit 401, network module 402, audio output unit 403, input unit 404, sensor 405, display unit 406, user input unit 407, interface unit 408, memory 409, and processor 4010.

[0112] Those skilled in the art will understand that the electronic device 400 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 4010 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 4 The electronic device structure shown does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here. This application also provides a computer program product, including a computer program / instruction. When the computer program / instruction is executed by a processor, it implements the various processes of the above-described oxygen production method embodiments and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0113] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0114] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, air conditioner, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0115] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. An oxygen generation system, characterized in that, include: An air compressor, a flow distribution valve, a first controller, a pressure swing adsorption (PSA) oxygen generation assembly, an air buffer cylinder, and an air storage buffer tank, wherein the PSA oxygen generation assembly includes one or more PSA oxygen generation devices; The air compressor is connected to the input end of the pressure swing adsorption oxygen generator and the input end of the air buffer cylinder through the flow distribution valve. The flow distribution valve is also connected to the first controller. The output ends of the multiple pressure swing adsorption oxygen generators and the output end of the air buffer cylinder are respectively connected to the air storage buffer tank. The air compressor is used to output compressed air to the flow distribution valve; The first controller controls the flow distribution valve to distribute the compressed air separately to the pressure swing adsorption oxygen generator, or to distribute it simultaneously to the pressure swing adsorption oxygen generator and the air buffer tank; The gas storage buffer tank is used to store the gas output from the pressure swing adsorption oxygen generation component and the air buffer cylinder.

2. The oxygen generation system according to claim 1, characterized in that, Each of the aforementioned pressure swing adsorption oxygen generators includes one or more molecular sieve adsorption cylinders.

3. The oxygen generation system according to claim 1, characterized in that, The pressure swing adsorption oxygen generation assembly includes two pressure swing adsorption oxygen generation devices.

4. The oxygen generation system according to claim 1, characterized in that, It also includes a preprocessor connected to the air compressor and the flow distribution valve; the preprocessor is used to process the compressed air and output the processed compressed air to the flow distribution valve.

5. The oxygen generation system according to claim 1, characterized in that, The flow distribution valve is an electrically controlled proportional valve.

6. The oxygen generation system according to claim 1, characterized in that, It also includes a second controller connected to the air compressor; the second controller is used to adjust the speed of the air compressor.

7. An oxygen generation method for use in the oxygen generation system according to any one of claims 1-6, characterized in that, include: Obtain the target oxygen concentration and the target gas flow rate of the compressed air; Based on the target oxygen concentration and the target gas flow rate, determine the number of oxygen generating devices that need to be put into operation and the distribution ratio of the flow distribution valve; Based on the number of oxygen generating devices and the allocation ratio, the flow distribution valve controls the compressed air to be allocated separately to the pressure swing adsorption oxygen generating component, or simultaneously to the pressure swing adsorption oxygen generating component and the air buffer tank, so that the air storage buffer tank outputs air that meets the target oxygen concentration.

8. The method according to claim 7, characterized in that, The step of determining the number of oxygen generating devices to be put into operation and the distribution ratio of the flow distribution valve based on the target oxygen concentration and the target gas flow rate includes: The operating mode of the oxygen generation system is determined based on the target oxygen concentration. The number of oxygen generating devices and the allocation ratio are determined based on the target oxygen concentration, the operating mode, and the target gas flow rate.

9. The method according to claim 7, characterized in that, The step of determining the number of oxygen generating devices and the allocation ratio based on the target oxygen concentration, the operating mode, and the target gas flow rate includes: When the working mode is high oxygen mode, the number of oxygen generating devices and a first allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices are determined based on the target oxygen concentration and the target gas flow rate. When the operating mode is low oxygen mode, the number of oxygen generating devices and a second allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices and the air buffer cylinder are determined based on the target oxygen concentration and the target gas flow rate.

10. The method according to claim 9, characterized in that, The step of determining the number of oxygen generating devices and the first allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices based on the target oxygen concentration and the target gas flow rate includes: Obtain the operating flow range of each of the pressure swing adsorption oxygen generators; The number of oxygen generating devices is determined based on the target oxygen concentration, the target gas flow rate, and the operating flow rate range of each pressure swing adsorption oxygen generating device. If the number of oxygen generating devices is one, then the first allocation ratio is determined to be all compressed air; If there are multiple oxygen generating devices, the first allocation ratio is determined based on the operating flow range.

11. The method according to claim 9, characterized in that, The determination of the number of oxygen generating devices and the second allocation ratio for characterizing the distribution of compressed air to each of the pressure swing adsorption oxygen generating devices and the air buffer tank based on the target oxygen concentration and the target gas flow rate includes: Based on the target oxygen concentration and the target gas flow rate, a first flow rate to be allocated to the pressure swing adsorption oxygen generator and a second flow rate to be allocated to the air buffer cylinder are determined; the second allocation ratio is the ratio of the first flow rate to the second flow rate. The number of oxygen generating devices is determined based on the first flow rate.

12. The method according to claim 11, characterized in that, Determining the number of oxygen generating devices based on the first flow rate includes: Obtain the operating flow range of each of the pressure swing adsorption oxygen generators; The number of oxygen generating devices is determined based on the first flow rate and the operating flow rate range.

13. A storage medium, characterized in that, The storage medium stores computer instructions, which, when executed by the computer, are used to perform an oxygen production method as described in any one of claims 7-12.

14. An electronic device, characterized in that, Includes at least one processor; and, A memory communicatively connected to the at least one processor; wherein, The memory stores instructions that can be executed by the at least one processor to enable the at least one processor to perform an oxygen production method as described in any one of claims 7-12.

15. A computer program product comprising a computer program / instructions, characterized in that, When the computer program / instructions are executed by the processor, they implement an oxygen production method as described in any one of claims 7-12.

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