Air-oxygen mixer with oxygen source

Abstract

The invention discloses an air-oxygen mixing machine with an oxygen source. The air-oxygen mixing machine comprises a compressor module, a four-tower molecular sieve oxygen generation module, an integrated gas circuit board module, a central oxygen storage tank, an oxygen concentration adjusting module, an intelligent control module and a heat dissipation module, the compressor module is provided with a gas inlet, a gas outlet and a nitrogen extraction opening, the gas outlet is communicated with the integrated gas circuit board module, and the nitrogen extraction opening is used for discharging nitrogen; the four-tower molecular sieve oxygen generation module comprises four parallel molecular sieve generation towers, the four molecular sieve generation towers are respectively communicated with the compressor module and the central oxygen storage tank through the integrated gas circuit board module, and the four towers alternately perform adsorption and desorption operations.

Description

An air-oxygen mixer with its own oxygen source Technical Field

[0001] This invention belongs to the field of medical oxygen generation technology, and more specifically, it relates to an air-oxygen mixer with its own oxygen source. Background Technology

[0002] In medical treatment and daily care, oxygen generators are crucial for ensuring patients' respiratory needs. Currently available oxygen generators have several shortcomings: most lack oxygen concentration adjustment capabilities, failing to meet the individualized needs of different patients. For example, critically ill patients require high-concentration oxygen support, while some patients with chronic respiratory diseases require continuous low-concentration oxygen supply. While some pulse-type oxygen generators can provide oxygen, they cannot offer a continuous and stable output, making them unsuitable for scenarios with high requirements for continuous oxygen supply, such as intensive care. Furthermore, existing equipment generally has a cumbersome structure and complex piping connections, increasing manufacturing costs and leading to difficult and costly maintenance. Moreover, the oxygen production capacity often falls short of actual usage needs, limiting its application scope.

[0003] To address the aforementioned technical issues, this invention proposes an air-oxygen mixer with a built-in oxygen source. By optimizing the structural design and adding core functional modules, it achieves precise adjustment of oxygen concentration and continuous and stable oxygen supply. At the same time, it simplifies the equipment structure, reduces maintenance costs, and meets diverse usage needs in different scenarios. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an air-oxygen mixer with its own oxygen source to solve the problems mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an air-oxygen mixer with its own oxygen source, comprising: a compressor module, a four-tower molecular sieve oxygen generation module, an integrated gas circuit board module, a central oxygen storage tank, an oxygen concentration adjustment module, an intelligent control module, and a heat dissipation module; the compressor module is provided with an air inlet, an air outlet, and a nitrogen extraction port, the air outlet being connected to the integrated gas circuit board module, and the nitrogen extraction port being used to discharge nitrogen; the four-tower molecular sieve oxygen generation module contains four parallel molecular sieve generating towers, which are respectively connected to the compressor module and the central oxygen storage tank through the integrated gas circuit board module, and the four towers alternately perform adsorption and desorption. The integrated gas circuit board module integrates a gas circuit board, a proportional valve, and a pressure balance port. The proportional valve controls the gas flow rate, and the pressure balance port maintains stable gas circuit pressure. The central oxygen storage tank has an oxygen inlet and an oxygen outlet. The oxygen inlet is connected to the four-tower molecular sieve oxygen generation module, and the oxygen outlet is connected to the oxygen concentration adjustment module. The oxygen concentration adjustment module includes a flow sensor, a concentration sensor, a mixing chamber, and a regulating valve, used to detect and adjust the oxygen concentration. The intelligent control module is electrically connected to each module, receives detection data, and controls the operation of the equipment. The heat dissipation module includes a heat sink structure and a heat dissipation vent, used for heat dissipation of the equipment.

[0006] As an optional embodiment of the present invention, the four molecular sieve generating towers of the four-tower molecular sieve oxygen generating module are divided into two groups, with two towers in each group operating synchronously, and the two groups alternately performing adsorption oxygen generation and desorption regeneration operations.

[0007] As an optional solution of the present invention, the integrated gas circuit board module is equipped with a pressure sensor, which is electrically connected to the intelligent control module for detecting gas circuit pressure and providing feedback for adjustment.

[0008] As an optional embodiment of the present invention, the oxygen concentration adjustment module has an adjustment range of 21%-96%, the concentration sensor has a detection accuracy of not less than ±1%, and the flow sensor has a detection range of 0.5-10L / min.

[0009] As an optional solution of the present invention, the intelligent control module includes a microprocessor, a display screen and operation buttons, used to display device parameters, receive operation commands and automatically adjust the device operating status.

[0010] As an optional solution of the present invention, the heat dissipation module is equipped with a temperature sensor, which is electrically connected to the intelligent control module and is used to adjust the airflow speed of the heat dissipation vent according to the equipment temperature.

[0011] As an optional embodiment of the present invention, the central oxygen storage tank is equipped with a pressure protection valve for automatically regulating the pressure inside the tank.

[0012] As an optional solution of the present invention, it also includes a backup power module, which is electrically connected to the intelligent control module and automatically switches power supply when the external power supply is interrupted.

[0013] As an optional embodiment of the present invention, the molecular sieve generating tower is filled with lithium-type X zeolite molecular sieves with a particle size of 0.5-1.2 mm and a specific surface area of ​​not less than 800 m² / g.

[0014] This invention provides an air-oxygen mixer with a built-in oxygen source, offering the following advantages: 1. Strong continuous oxygen supply and high oxygen production efficiency: Employing a four-tower molecular sieve oxygen generation module, the alternating adsorption and desorption operations of two sets of molecular sieve generating towers significantly improve oxygen production compared to traditional dual-tower structures, achieving continuous and stable oxygen supply. This solves the problem of pulsed oxygen generators being unable to provide continuous oxygen, meeting the high demands of scenarios such as medical intensive care units; 2. Precisely adjustable oxygen concentration and wide applicability: An oxygen concentration adjustment module is included, covering an adjustment range of 21%-96%. Combined with high-precision concentration and flow sensors, it can accurately meet the personalized oxygen supply needs of different patients, adapting to various usage scenarios such as medical and home applications; 3. Simplified structure and low maintenance costs: The integrated gas circuit board module adopts a modular integrated design, replacing the traditional cumbersome pipeline connections, reducing the number of vulnerable parts, simplifying the equipment structure, and lowering the difficulty and cost of later maintenance; 4. Stable operation and high safety: Through the coordinated action of components such as pressure sensors, temperature sensors, and pressure protection valves, the operating status of the equipment is monitored in real time, and timely responses are made to abnormal pressure, excessive temperature, and other situations. At the same time, a backup power module is equipped to avoid interruption of oxygen supply due to power failure, ensuring the stability and safety of equipment operation; 5. Convenient operation and strong practicality: The intelligent control module is equipped with a display screen and operation buttons, which can intuitively display the equipment operating parameters, making it convenient for users to operate and view. At the same time, the intelligent adaptive adjustment function reduces the difficulty of user operation and improves the user experience. Attached Figure Description

[0015] Figure 1 is a schematic diagram of the overall structure of the present invention; Figure 2 is a schematic diagram of the lower air passage plate structure of the present invention; Figure 3 is a schematic diagram of the upper cover plate structure of the present invention; Figure 4 is a schematic diagram of the oxygen concentration adjustment module structure of the present invention.

[0016] In the diagram: 1. Inlet; 2. Outlet; 3. Nitrogen extraction port; 4. Molecular sieve generator; 5. Lower gas flow plate; 6. Proportional valve; 7. Pressure balance port; 8. Pressure sensor; 9. Central oxygen storage tank; 10. Top cover plate; 11. Oxygen outlet; 12. Pressure protection valve; 13. Flow sensor; 14. Concentration sensor; 15. Mixing chamber; 16. Regulating valve; 17. Radiator structure; 18. Heat dissipation vent; 19. Temperature sensor. Detailed Implementation

[0017] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0018] In the description of this invention, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0020] Please refer to Figures 1 to 4. The present invention provides a technical solution: an air-oxygen mixer with its own oxygen source, including a compressor module, a four-tower molecular sieve oxygen generation module, an integrated gas circuit board module, a central oxygen storage tank 9, an oxygen concentration adjustment module, an intelligent control module, and a heat dissipation module. The modules work together to realize the preparation, storage, concentration adjustment, and stable output of oxygen.

[0021] The compressor module is the gas power source for the equipment, and it is equipped with a compressor inlet 1, a compressor outlet 2, and a compressor nitrogen extraction port 3. The compressor inlet 1 is used to draw in outside air, which is then compressed within the compressor body and delivered to the integrated gas circuit board module through the compressor outlet 2. The compressor nitrogen extraction port 3 is used to extract the nitrogen generated by the four-tower molecular sieve oxygen generation module and discharge it to the outside, preventing nitrogen accumulation within the system and ensuring stable oxygen generation efficiency.

[0022] The four-tower molecular sieve oxygen generation module is the core oxygen-generating component of the equipment. It consists of four parallel molecular sieve generating towers 4, which are connected to the compressor module and the central oxygen storage tank 9 via an integrated gas circuit board module. This module employs a group operation mode, with the four molecular sieve generating towers 4 divided into two groups. Each group has two molecular sieve generating towers 4 operating synchronously, alternating between adsorption oxygen generation and desorption regeneration. This alternating operation ensures a continuous and stable oxygen production, significantly increasing oxygen output compared to the traditional dual-tower structure.

[0023] The molecular sieve generator tower 4 is filled with lithium-type X zeolite molecular sieves. This type of molecular sieve has excellent nitrogen adsorption selectivity and adsorption capacity. Its particle size is 0.5-1.2 mm and its specific surface area is not less than 800 m² / g. It can efficiently separate oxygen and nitrogen in the air and ensure the purity of the produced oxygen.

[0024] The integrated gas circuit board module adopts a modular integrated design, replacing the traditional cumbersome pipeline connection structure, greatly simplifying the equipment structure and reducing later maintenance costs. The module includes an upper cover plate 10 and a lower gas circuit board 5. The upper cover plate 10 is equipped with a proportional valve 6, a pressure balance port 7, and a pressure sensor 8. The lower gas circuit board 5 provides a mounting carrier for each component and integrates gas channels. The proportional valve 6 is used to precisely control the gas flow rate entering the molecular sieve generating tower 4, and the pressure balance port 7 is used to maintain the pressure stability of the gas circuit system and avoid pressure fluctuations affecting the oxygen production effect.

[0025] Pressure sensor 8 is electrically connected to the intelligent control module to detect pressure data in the gas circuit system in real time and feed the data back to the intelligent control module. When the pressure exceeds the preset safety range, the intelligent control module adjusts the opening of proportional valve 6 or controls the pressure balance port 7 to release pressure, ensuring the safe operation of the gas circuit system.

[0026] The integrated gas circuit board module is made of one-piece molded aluminum alloy. The inner wall of the gas channel is anodized, which not only reduces gas flow resistance and improves gas transmission efficiency, but also enhances the corrosion resistance and structural strength of the gas circuit board, extending the service life of the equipment.

[0027] The central oxygen storage tank 9 is used to store the oxygen generated by the four-tower molecular sieve oxygen generation module. It is equipped with an oxygen inlet and an oxygen outlet 11. The oxygen inlet is connected to the gas output end of the four-tower molecular sieve oxygen generation module, and the oxygen outlet 11 is connected to the oxygen concentration adjustment module to realize the transfer storage and stable transportation of oxygen.

[0028] The central oxygen storage tank 9 is equipped with a pressure protection valve 12. When the oxygen pressure in the tank is higher than the preset safety threshold, the pressure protection valve 12 will automatically open to release pressure and prevent the tank from being too high and causing safety hazards. When the pressure in the tank is lower than the minimum working threshold, the pressure protection valve 12 will send a signal to the intelligent control module. The intelligent control module will control the four-tower molecular sieve oxygen generation module to increase the oxygen generation power to ensure sufficient oxygen storage in the tank and ensure output stability.

[0029] The oxygen concentration regulation module is used to achieve precise control of oxygen concentration to meet the personalized needs of different users. It includes a component plate located above the central oxygen storage tank, and a flow sensor 13, a concentration sensor 14, a mixing chamber 15, and a regulating valve 16 located on the component plate. The flow sensor 13 is used to detect the oxygen delivery flow rate in real time, the concentration sensor 14 is used to detect the oxygen purity, the mixing chamber 15 is used to achieve uniform mixing of high-purity oxygen and air, and the regulating valve 16 is used to adjust the mixing ratio of oxygen and air.

[0030] The module has an oxygen concentration adjustment range of 21%-96%, a detection accuracy of no less than ±1% for the concentration sensor 14, and a detection range of 0.5-10L / min for the flow sensor 13. It can accurately adapt to the oxygen supply needs of different groups such as critically ill patients and patients with chronic diseases, while meeting the usage requirements of different scenarios such as medical care and home use.

[0031] The intelligent control module is the core of the equipment's control system. It is electrically connected to the compressor module, the four-tower molecular sieve oxygen generation module, the integrated gas circuit board module, the oxygen concentration regulation module, and the heat dissipation module. It is responsible for receiving detection data from each module and controlling their coordinated operation. This module includes a microprocessor, a display screen, and operation buttons. The microprocessor is the core control unit, used to process detection data and generate control commands. The display screen visually shows information such as oxygen concentration, gas flow rate, equipment operating status, and fault prompts, allowing users to easily view data in real time. The operation buttons are used by users to set target oxygen concentration, flow rate, and other parameters, providing convenient operation.

[0032] The intelligent control module can compare and analyze the detection data fed back by the flow sensor 13, concentration sensor 14, pressure sensor 8, etc. with the user-preset parameters, and automatically adjust the operating status of components such as proportional valve 6 and regulating valve 16 to achieve adaptive adjustment of equipment operation and ensure that oxygen concentration and flow rate are stable within the set range.

[0033] The heat dissipation module is used to dissipate the heat generated during equipment operation in a timely manner, ensuring stable operation of the equipment over a long period of time. It includes a heat sink structure 17, a heat dissipation vent 18, and a temperature sensor 19. The heat sink structure 17 is fitted to the compressor module and the four-tower molecular sieve oxygen generation module, and quickly absorbs the heat generated by the equipment through heat conduction. The heat dissipation vent 18 is used to accelerate airflow and dissipate the heat absorbed by the heat sink structure 20 to the outside. The temperature sensor 19 is electrically connected to the intelligent control module, which monitors the operating temperature of the equipment in real time and feeds the temperature data back to the intelligent control module.

[0034] When the detected device temperature is higher than the preset threshold, the intelligent control module controls the heat dissipation vent 18 to increase the air speed and improve heat dissipation efficiency; when the temperature is lower than the preset threshold, the air speed is reduced or the heat dissipation vent 18 is closed to achieve energy-saving operation.

[0035] The equipment also includes a backup power module 23, which is electrically connected to the intelligent control module. When the external power supply is interrupted, the backup power module 23 automatically switches to the power supply state to ensure that the equipment continues to operate for no less than 2 hours, avoiding oxygen supply interruption due to power failure. It is especially suitable for scenarios with extremely high requirements for continuous oxygen supply, such as medical intensive care, and improves the reliability of the equipment.

[0036] The working process of the air-oxygen mixer with its own oxygen source of the present invention is as follows: After starting the equipment, the user sets the target oxygen concentration and flow parameters through the operation button 19 of the intelligent control module. After receiving the instruction, the intelligent control module controls the compressor module to start. Outside air enters the compressor body through the compressor inlet 1, is compressed, and is then delivered to the integrated gas circuit board module through the compressor outlet 2. The proportional valve 6 in the integrated gas circuit board module precisely controls the gas flow according to the instruction of the intelligent control module. The compressed air enters the molecular sieve generating tower 4 of the four-tower molecular sieve oxygen generating module through the gas channel of the gas circuit board 5. The lithium-type X in the molecular sieve generating tower 4... Zeolite molecular sieves adsorb nitrogen from the air to separate high-purity oxygen. Four molecular sieve generating towers are divided into two groups, alternating between adsorption and desorption regeneration to ensure continuous oxygen production. The separated oxygen enters the central oxygen storage tank 9 through the inlet 10. A pressure protection valve 12 inside the central oxygen storage tank 9 monitors the internal pressure in real time to ensure pressure stability. The stored oxygen is then delivered to the oxygen concentration regulation module through the outlet 11 of the central oxygen storage tank 9. Flow sensors 13 and concentration sensors 14 detect the oxygen flow rate and concentration, respectively, and feed the data back to the intelligent control module. The intelligent control module adjusts the oxygen concentration based on the difference between preset parameters and the detected data. The control valve 16 regulates the mixing ratio of oxygen and air. After the mixed gas is evenly mixed in the mixing chamber 15, it is supplied to the user through the output pipeline. The nitrogen generated during the oxygen production process is collected by the integrated gas circuit board module and then extracted and discharged to the outside through the nitrogen extraction port 3 of the compressor. During the operation of the equipment, the pressure sensor 8 detects the gas circuit pressure in real time, and the temperature sensor 19 detects the equipment temperature in real time. The intelligent control module adaptively adjusts the operating status of each component according to the detection data, and the heat dissipation module adjusts the wind speed of the heat dissipation vent 18 according to the temperature data. When the external power supply is interrupted, the backup power module automatically switches to power supply to ensure continuous oxygen supply to the equipment.

[0037] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An air-oxygen mixer with its own oxygen source, characterized in that, include: The system includes a compressor module, a four-tower molecular sieve oxygen generation module, an integrated gas circuit board module, a central oxygen storage tank (9), an oxygen concentration adjustment module, an intelligent control module, and a heat dissipation module. The compressor module is equipped with an air inlet (1), an air outlet (2), and a nitrogen extraction port (3). The air outlet (2) is connected to the integrated gas circuit board module, and the nitrogen extraction port (3) is used to discharge nitrogen. The four-tower molecular sieve oxygen generation module contains four parallel molecular sieve generating towers (4), which are connected to the compressor module and the central oxygen storage tank (9) respectively through the integrated gas circuit board module. The four towers alternately perform adsorption and desorption operations. The integrated gas circuit board module integrates a gas circuit board (5), a proportional valve (6), and a pressure balance port. (7) The proportional valve (6) controls the gas flow rate, and the pressure balance port (7) maintains the gas path pressure stability; The central oxygen storage tank (9) is provided with an oxygen inlet and an oxygen outlet (11). The oxygen inlet is connected to the four-tower molecular sieve oxygen generation module, and the oxygen outlet (11) is connected to the oxygen concentration adjustment module; The oxygen concentration adjustment module includes a flow sensor (13), a concentration sensor (14), a mixing chamber (15), and an adjustment valve (16), which are used to detect and adjust the oxygen concentration; The intelligent control module is electrically connected to each module, receives detection data, and controls the operation of the equipment; The heat dissipation module includes a heat sink structure (17) and a heat dissipation air outlet (18), which are used for heat dissipation of the equipment.

2. The air-oxygen mixer with its own oxygen source according to claim 1, characterized in that, The four molecular sieve generating towers (4) of the four-tower molecular sieve oxygen generation module are divided into two groups, with two towers in each group operating synchronously. The two groups alternately perform adsorption oxygen generation and desorption regeneration operations.

3. An air-oxygen mixer with a built-in oxygen source according to claim 1, characterized in that, The integrated gas circuit board module is equipped with a pressure sensor (8), which is electrically connected to the intelligent control module to detect the gas circuit pressure and provide feedback for adjustment.

4. An air-oxygen mixer with a built-in oxygen source according to claim 1, characterized in that, The oxygen concentration adjustment module has an adjustment range of 21%-96%, the concentration sensor (14) has a detection accuracy of not less than ±1%, and the flow sensor (13) has a detection range of 0.5-10L / min.

5. An air-oxygen mixer with a built-in oxygen source according to claim 1, characterized in that, The intelligent control module includes a microprocessor, a display screen, and operation buttons, which are used to display device parameters, receive operation commands, and automatically adjust the device's operating status.

6. An air-oxygen mixer with a built-in oxygen source according to claim 1, characterized in that, The heat dissipation module is equipped with a temperature sensor (19), which is electrically connected to the intelligent control module and is used to adjust the air speed of the heat dissipation vent (18) according to the equipment temperature.

7. An air-oxygen mixer with a built-in oxygen source according to claim 1, characterized in that, The central oxygen storage tank (9) is equipped with a pressure protection valve (12) for automatically adjusting the pressure inside the tank.

8. An air-oxygen mixer with a built-in oxygen source according to claim 1, characterized in that, It also includes a backup power module, which is electrically connected to the intelligent control module and automatically switches power supply when the external power supply is interrupted.

9. An air-oxygen mixer with a built-in oxygen source according to claim 1, characterized in that, The molecular sieve generating tower (4) is filled with lithium-type X zeolite molecular sieves with a particle size of 0.5-1.2 mm and a specific surface area of ​​not less than 800 m² / g.

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