Oxygen production and supply system and method for vehicle

Abstract

The invention relates to a vehicle oxygen generation and supply system and method. An oxygen generation device, a turbocharger, a waste gas inlet pipe, a waste gas exhaust pipe, an oxygen-enriched gas suction pipe, an oxygen supply pipeline and other assemblies are integrated. The oxygen production device can effectively separate oxygen-enriched gas and waste nitrogen gas. Waste nitrogen gas is introduced into a turbine of the turbocharger, waste gas energy is used for driving the gas compressor to work, efficient recovery and conversion of the energy are achieved, and oxygen-enriched gas is conveyed to the gas compressor through the oxygen-enriched gas suction pipe to be pressurized. The pressure of the permeation side of the oxygen production membrane separation structure is set to be smaller than or equal to ordinary atmospheric pressure, and the supercharging effect of the turbocharger is utilized, so that effective separation of oxygen and oxygen supply requirements are realized without additionally applying high pressure, the energy consumption is reduced, and the service life of the membrane separation structure is prolonged. According to the vehicle oxygen generation and supply system and method, the efficient and energy-saving oxygen generation and supply process is achieved, and good flexibility and adaptability are achieved.

Description

Technical Field

[0001] The present application relates to the technical field of oxygen supply, and in particular to a vehicle oxygen production and supply system and method. Background Art

[0002] As the scope of activities continues to expand, the demand for transportation in plateau areas is increasing. However, the atmospheric pressure in plateau areas decreases with increasing altitude, resulting in a gradual decrease in the oxygen content in the atmosphere, posing a challenge to normal human breathing. Especially in the altitude range of about 3,000-5,000 meters, the atmospheric pressure drops from 101.325 kPa at sea level to about 70.1-54.4 kPa. This change makes the plateau environment put higher requirements on the oxygen supply system of trains and other means of transportation.

[0003] In order to ensure the comfort and safety of passengers on plateau trains, the basically closed carriages must be oxygenated. At present, oxygen production devices on plateau trains generally use membrane separation technology to produce oxygen-rich gas to increase the oxygen concentration in the cabin. The basic principle of membrane separation technology is that when compressed air with a certain pressure is applied to one side of the membrane material, oxygen, due to its smaller molecules, will permeate through the membrane material faster than nitrogen to reach the other side, thereby achieving oxygen enrichment. In this process, the oxygen-rich gas obtained can increase the oxygen content in the carriage, while the nitrogen-rich gas on the retained side is usually discharged directly out of the carriage as exhaust gas.

[0004] In practical applications, the oxygen supply system of plateau trains needs to meet two requirements: first, to provide diffuse oxygen supply to the carriage by directly filling oxygen-rich gas to ensure that all passengers can breathe relatively sufficient oxygen; second, to provide nasal oxygen supply for passengers with special needs through pressurized pipes, that is, distributed oxygen supply. The distributed oxygen supply method requires a certain pressurization state to be maintained in the pipeline to ensure that passengers can use nasal oxygen supply equipment at any time. However, maintaining the pressurization state in the pipeline means that the back pressure of the oxygen-rich gas behind the membrane needs to be increased. The gas production performance of the oxygen-generating membrane is affected by the pressure ratio before and after the membrane. The larger the pressure ratio, the higher the oxygen production. The presence of oxygen-rich gas back pressure will reduce the pressure ratio before and after the membrane, resulting in a decrease in gas production. In order to maintain sufficient gas production, it is necessary to further increase the pressure before the membrane, which will undoubtedly increase the energy consumption required for air compression. Therefore, how to improve oxygen production efficiency and reduce energy consumption while ensuring oxygen supply needs has become an urgent problem to be solved in the current oxygen production and supply system of plateau trains. How to optimize oxygen production efficiency and reduce energy consumption while ensuring the oxygen supply needs of passengers is still the focus of the train oxygen production and supply system. Summary of the invention

[0005] The purpose of the present application is to provide a vehicle oxygen production and supply system, which can pressurize oxygen-enriched air at normal pressure to the back pressure required by the oxygen supply pipeline, and can achieve the normal oxygen supply demand of the cabin without increasing the pressure on the permeate side of the membrane separator. The purpose of the present application is achieved through the following technical solutions. The vehicle oxygen production and supply system of the present application includes an oxygen production device, a turbocharger, an exhaust gas access pipe, an exhaust gas discharge pipe, an oxygen-enriched gas suction pipe and an oxygen supply pipeline; The oxygen production device includes a waste nitrogen gas outlet and an oxygen-rich gas outlet; The turbocharger comprises a turbine and a compressor, wherein the turbine and the compressor are connected via a transmission shaft; Among them, the exhaust gas inlet pipe connects the waste nitrogen gas outlet of the oxygen production device and the gas inlet of the turbine, the exhaust gas discharge pipe connects the gas outlet of the turbine, the oxygen-rich gas suction pipe connects the oxygen-rich gas outlet of the oxygen production device and the gas inlet of the compressor, and the oxygen supply pipeline connects the gas outlet of the compressor.

[0006] In one of the embodiments, a first flow sensor and a first pressure sensor are provided on the exhaust gas access pipe.

[0007] In one of the embodiments, a second flow sensor and a second pressure sensor are provided on the oxygen supply pipeline.

[0008] In one of the embodiments, a controller is further included, wherein the controller is connected to the turbocharger and is used to monitor and control the working state of the turbocharger.

[0009] In one embodiment, the oxygen supply line is connected to the oxygen supply pipeline of the vehicle.

[0010] In one of the embodiments, a muffler is further included, and the muffler is arranged on the exhaust gas exhaust pipe and / or the oxygen supply pipe.

[0011] In one embodiment, the oxygen production device includes an oxygen production membrane separation structure, and the permeate side pressure of the oxygen production membrane separation structure is less than or equal to normal atmospheric pressure.

[0012] In addition, the present application also provides a vehicle oxygen production and supply method, which uses the above-mentioned vehicle oxygen production and supply system, and includes the following steps: Air is introduced into the oxygen production device to obtain oxygen-rich gas and waste nitrogen gas by oxygen production membrane separation; The waste nitrogen gas is introduced into the gas inlet of the turbine in the turbocharger, and the turbine drives the compressor to pressurize the oxygen-rich gas in the oxygen-rich gas suction pipe; Oxygen is supplied to the oxygen supply pipe of the vehicle through the oxygen supply pipeline.

[0013] In one of the embodiments, the method further includes acquiring data from a first flow sensor, a first pressure sensor, a second flow sensor, and a second pressure sensor through a controller, and controlling the working state of the turbocharger according to the acquired data.

[0014] In one of the embodiments, the pressure of the oxygen-rich gas suction pipe is less than or equal to normal atmospheric pressure, and the gas pressure is increased to a pressure greater than normal atmospheric pressure by a compressor.

[0015] Compared with the prior art, this application has the following beneficial effects: The present application realizes the effective utilization of waste nitrogen gas by connecting one end of the waste gas access pipe to the waste nitrogen gas outlet of the oxygen production device and the other end to the waste gas inlet of the turbocharger. At the same time, one end of the oxygen-rich gas suction pipe is connected to the oxygen-rich gas outlet of the oxygen production membrane and the other end is connected to the inlet of the turbocharger. This design enables the oxygen-rich gas to be effectively pumped out and pressurized without increasing the pressure on the permeate side of the membrane separator.

[0016] The control system can monitor and adjust the working status of the turbocharger in real time. According to the sensor data in the exhaust gas access pipe and the oxygen-rich gas extraction pipe, it can adjust the working status of the turbocharger in real time, thereby achieving precise control of the system operation, improving the system's operating efficiency, and reducing operating difficulty and maintenance costs.

[0017] By using a turbocharger to pump out and pressurize the oxygen-rich gas, the pressure behind the membrane is reduced, and the pressure ratio before and after the membrane is increased, thereby increasing the oxygen production of the oxygen-producing membrane. At the same time, waste nitrogen gas is used as a power source to drive the turbocharger, which realizes the recycling of energy, effectively reduces the unit energy consumption of the oxygen production process, improves the economic benefits of the system, and complies with the concept of green and sustainable development. In summary, the vehicle oxygen production and supply system and method provided in this application are optimized to achieve efficient utilization of exhaust gas, stable transmission and pressurization of oxygen-rich gas, precise matching and control of turbochargers, and energy saving and production increase effects. It improves the stability and reliability of the system, reduces energy consumption and costs, and provides an effective solution for vehicle oxygen supply in oxygen-deficient environments such as plateaus. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a structural schematic diagram of a vehicle oxygen production and supply system in an embodiment of the present application; Figure 2 It is a flow chart of the vehicle oxygen production and supply method in the embodiment of the present application.

[0019] Explanation of the reference numerals in the accompanying drawings: 100, oxygen production device; 200, turbocharger; 210, turbine; 220, compressor; 310, exhaust gas inlet pipe; 320, exhaust gas outlet pipe; 410, oxygen-enriched gas suction pipe; 420, oxygen supply pipeline; 510, first flow sensor; 520, first pressure sensor; 530, second flow sensor; 540, second pressure sensor; 600, muffler. DETAILED DESCRIPTION

[0020] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is to be understood that the specific embodiments described herein are only used to explain the present application, rather than to limit the present application. It should also be noted that, for ease of description, only some structures related to the present application are shown in the accompanying drawings, rather than all structures. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0021] The terms "including" and "having" and any variations thereof in this application are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0022] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0023] The low atmospheric pressure and thin oxygen in plateaus and high-altitude areas pose a challenge to normal breathing, and put forward higher oxygen supply requirements for trains and other means of transportation running on plateaus. Traditional oxygen production and supply systems often face problems such as high energy consumption, low oxygen production efficiency and unstable oxygen supply, and it is difficult to meet the needs of plateau trains and other means of transportation. In order to solve the above problems, the present invention proposes a new vehicle oxygen production and supply system and method. By utilizing turbocharging technology, the effective utilization of waste nitrogen gas and the stable pressurization of oxygen-rich gas are achieved. While utilizing waste gas, it can also improve oxygen production efficiency and reduce energy consumption overall. The specific composition, principle, etc. of the vehicle oxygen production and supply system and method will be introduced in detail below, providing an effective solution to the problem of vehicle oxygen supply in oxygen-deficient environments such as plateaus. Please refer to Figure 1In a preferred embodiment of the present application, a vehicle oxygen production and supply system includes an oxygen production device 100, a turbocharger 200, an exhaust gas inlet pipe 310, an exhaust gas discharge pipe 320, an oxygen-enriched gas suction pipe 410 and an oxygen supply pipeline 420. The oxygen production device 100 includes a waste nitrogen gas outlet and an oxygen-enriched gas outlet. The turbocharger 200 includes a turbine 210 and a compressor 220. The turbine 210 and the compressor 220 are connected through a transmission shaft, wherein the exhaust gas inlet pipe 310 connects the waste nitrogen gas outlet of the oxygen production device 100 and the gas inlet of the turbine 210, the exhaust gas discharge pipe 320 connects the gas outlet of the turbine 210, the oxygen-enriched gas suction pipe 410 connects the oxygen-enriched gas outlet of the oxygen production device 100 and the gas inlet of the compressor, and the oxygen supply pipeline 420 connects the gas outlet of the compressor.

[0024] In the oxygen generator 100, due to the different rates of oxygen and nitrogen passing through the separation membrane, a gas with a higher oxygen concentration can be produced, which is discharged through the waste nitrogen gas outlet and the oxygen-rich gas outlet respectively. This separation process ensures that the oxygen has a higher concentration and is used to provide oxygen to the vehicle's oxygen-demanding parts, such as supplying oxygen to the car compartment or to the gas engine. The turbocharger 200 is formed by connecting the turbine 210 and the compressor 220 through a transmission shaft. The turbine 210 uses the energy in the exhaust gas to drive the compressor 220 to work, thereby realizing energy recovery, conversion and utilization. In the connection design of the system, the exhaust gas access pipe 310 introduces the waste nitrogen gas generated by the oxygen generator 100 into the gas inlet of the turbine 210 to provide power for the turbine 210, and the exhaust gas discharge pipe 320 is responsible for discharging the exhaust gas after passing through the turbine 210. The oxygen-rich gas suction pipe 410 is responsible for transporting the oxygen-rich gas generated by the oxygen generator 100 to the gas inlet of the compressor 220. Under the action of the compressor 220, the pressure of the oxygen-rich gas is increased. The oxygen supply pipeline 420, as a channel connecting the gas outlet of the compressor and the gas-using part, can ensure that the flow rate, pressure and concentration of the oxygen-rich gas during the transportation process can meet the user's needs through accurate calculation. The application of the turbocharger 200 improves the energy utilization efficiency of the system and reduces energy consumption. By controlling the connection and operation of each component, the system realizes the stable production and supply of oxygen-rich gas, effectively solving the oxygen supply problem in oxygen-deficient environments such as plateaus.

[0025] As a component for exhaust gas flow monitoring, the first flow sensor 510 captures the changes in gas flow in the exhaust gas access pipe 310 in real time and accurately, which is meaningful for evaluating the working state of the turbocharger 200, optimizing system performance and preventing potential failures. By monitoring the exhaust gas flow in real time, it can ensure that the turbine 210 always operates under the best working conditions, thereby effectively improving the energy conversion efficiency. The first pressure sensor 520 monitors the gas pressure in the exhaust gas access pipe 310. By measuring the exhaust gas pressure, the system can adjust the working parameters of the turbocharger 200 in time to ensure that it can maintain efficient and stable operation under various working conditions. The pressure sensor can also provide the system with a fault warning function. Once an abnormal pressure fluctuation is detected, the system can quickly take measures to avoid potential safety hazards.

[0026] A second flow sensor 530 and a second pressure sensor 540 are arranged on the oxygen supply pipeline 420. The second flow sensor 530, as the core component for monitoring the flow of oxygen-rich gas, captures the flow change of the oxygen-rich gas in the oxygen supply pipeline 420 in real time, and is used to evaluate the working efficiency of the oxygen production device 100, optimize the compression process of the oxygen-rich gas, and ensure the stable supply of oxygen flow in the oxygen supply pipeline 420. The second pressure sensor 540 focuses on monitoring the gas pressure in the oxygen supply pipeline 420, grasps the pressure state of the oxygen-rich gas in real time, and then regulates the working pressure of the turbocharger 200 and the oxygen supply pipeline 420, which helps to maintain the stability of the oxygen pressure in the oxygen supply pipeline 420 and can effectively prevent hidden dangers caused by pressure fluctuations.

[0027] Specifically, it also includes a controller, which is connected to the turbocharger 200 and is used to monitor and control the working state of the turbocharger 200, including key parameters such as speed, temperature, and pressure. These data are used to evaluate the performance of the turbocharger 200, predict potential failures, and optimize the overall system efficiency. By continuously monitoring these data, the controller can promptly detect abnormal conditions in the operation of the turbocharger 200 and automatically take corresponding measures, such as adjusting the speed, to ensure that the turbocharger 200 always operates in the best state. At the same time, according to the data monitored in real time, the controller can automatically adjust the working parameters of the turbocharger 200, such as the intake volume, exhaust pressure, etc., to optimize the oxygen production efficiency and oxygen supply stability, and improve the response speed and accuracy of the system.

[0028] Specifically, the oxygen supply pipeline 420 is connected to the oxygen supply pipeline of the vehicle. The oxygen supply pipeline 420 is connected to the oxygen supply pipeline of the vehicle to realize the connection between the oxygen-rich gas and the internal oxygen supply system of the vehicle, simplifying the oxygen delivery process. During the driving of the vehicle, the oxygen supply pipeline 420 can continuously and stably deliver oxygen-rich gas to the oxygen supply pipeline of the vehicle.

[0029] Specifically, it also includes a muffler 600, which is arranged on the exhaust gas exhaust pipe 320 and / or the oxygen supply pipeline 420. The muffler 600 can reduce the noise generated by the turbocharger 200 during exhaust, reduce the interference to the surrounding environment, and reduce the possible noise, so as to provide a quieter and more comfortable riding environment.

[0030] The oxygen production device 100 used in the present application includes an oxygen production membrane separation structure, and the permeate side pressure is set to be less than or equal to the normal atmospheric pressure. In the traditional oxygen production process, in order to obtain oxygen-rich gas, it is often necessary to apply a higher pressure to promote the oxygen molecules to pass through the membrane separation structure. In the present invention, due to the introduction of the turbocharger 200, the exhaust gas is effectively utilized to provide an additional boosting effect. Under certain requirements of the demand side pressure, the permeate side pressure can be reduced. This mechanism enables the permeate side of the oxygen production membrane separation structure to achieve effective separation of oxygen without reaching the high pressure level usually required. By maintaining a reasonable pressure difference between the permeate side pressure and the gas inlet side, it is possible to ensure that the oxygen molecules can smoothly penetrate through the membrane separation structure without adding additional pressure, thereby generating oxygen-rich gas and reducing the energy consumption of the system. By reducing the permeate side pressure requirement, the disadvantage of consuming a large amount of energy to apply high pressure in the traditional oxygen production process is avoided, and the goal of energy saving is achieved. Secondly, the boosting effect of the turbocharger 200 is utilized to effectively improve the utilization rate of the exhaust gas, further improving the overall energy efficiency of the system. In addition, this design also helps to extend the service life of the oxygen production membrane separation structure. Working under a lower pressure difference, the mechanical stress on the membrane separation structure is reduced, thereby reducing the material fatigue and performance degradation problems that may be caused by long-term high-pressure operation.

[0031] In addition, the present application also provides a vehicle oxygen production and supply method, which uses the aforementioned vehicle oxygen production and supply system, see Figure 2 , including the following steps: air is introduced into the oxygen production device 100, oxygen-rich gas and waste nitrogen gas are obtained by oxygen production membrane separation, the waste nitrogen gas is introduced into the gas inlet of the turbine 210 in the turbocharger 200, the compressor 220 is driven by the turbine 210 to pressurize the oxygen-rich gas in the oxygen-rich gas suction pipe 410, and oxygen is supplied to the oxygen supply pipeline of the vehicle through the oxygen supply pipeline 420.

[0032] First, air is introduced into the oxygen generator 100, and the air is introduced to provide raw materials for membrane separation, and oxygen-rich gas and waste nitrogen gas are separated from the introduced air. The oxygen-generating membrane separation structure can effectively enrich the oxygen in the air and produce waste gas rich in nitrogen. The waste nitrogen gas is introduced into the gas inlet of the turbine 210 in the turbocharger 200. The waste nitrogen gas expands and works in the turbine 210, driving the turbine to rotate. The rotation of the turbine then drives the compressor 220 connected thereto to work partially, pressurizing the oxygen-rich gas in the oxygen-rich gas suction pipe 410, and increasing the pressure of the oxygen-rich gas by supercharging, thereby reducing the pressure requirement on the permeation side. Finally, the pressurized oxygen-rich gas is transported to the oxygen supply pipeline of the vehicle through the oxygen supply pipeline 420. According to actual needs, these oxygen-rich gases can be used for the breathing needs of passengers to provide a fresher and oxygen-rich in-vehicle environment; or, they can be introduced into the gas engine to improve the combustion efficiency, thereby improving the power performance and fuel economy of the vehicle.

[0033] This application realizes efficient and energy-saving oxygen production and supply process through the combined use of oxygen production membrane separation technology and turbocharger 200, reducing energy consumption and cost. The effective use of waste nitrogen gas not only reduces environmental pollution, but also improves energy utilization efficiency. In addition, it has good flexibility and adaptability, and can be flexibly adjusted according to different needs of vehicles to meet diverse application scenarios.

[0034] The vehicle oxygen production and supply system of the present application can also be integrated with intelligent control strategies to achieve regulation of the entire system through an integrated controller. The controller obtains and analyzes multi-dimensional data from the first flow sensor 510, the first pressure sensor 520, the second flow sensor 530 and the second pressure sensor 540. The first flow sensor 510 is responsible for monitoring the air flow entering the oxygen production device 100, and the first pressure sensor 520 monitors the pressure change on the permeate side of the oxygen production membrane separation structure in real time to ensure that the pressure difference remains within the optimal range to maximize the output efficiency of the oxygen-rich gas. The first flow sensor 510 is set at the inlet of the turbine 210 of the turbocharger 200 to measure the flow of the waste nitrogen gas, and the second pressure sensor 540 monitors the pressure state in the oxygen supply pipeline 420 to ensure that the pressurized oxygen-rich gas can meet the needs of the vehicle oxygen supply system. After obtaining these key data, the controller processes them to determine whether the current working state of the system is optimal. If any parameter deviates from the preset value is detected, the controller will quickly adjust the working state of the turbocharger 200, including key parameters such as turbine speed and pressure ratio, to achieve regulation of the oxygen production and supply process.

[0035] In the vehicle oxygen production and supply system of the present application, the initial pressure of the oxygen-rich gas suction pipe 410 is set to be less than or equal to normal atmospheric pressure, and through the compressor 220 part in the turbocharger 200, the oxygen-rich gas in the suction pipe can be effectively pressurized until its gas pressure rises to a level greater than normal atmospheric pressure. In the oxygen production process, after the oxygen-rich gas is separated in the oxygen production membrane separation structure, its pressure is the same as the pressure on the permeate side, that is, less than or equal to normal atmospheric pressure. Conventional oxygen production systems may require additional energy consumption to increase the pressure of the input gas and thus increase the pressure of the gas on the permeate side to meet the oxygen supply demand. However, in the present application, the boosting function of the turbocharger 200 is used to pressurize the oxygen-rich gas, which can avoid additional energy consumption.

[0036] As can be seen from the foregoing, the present application proposes a vehicle oxygen production and supply system and method thereof, which integrates an oxygen production device and a turbocharger to achieve stable production and supply of oxygen-rich gas. The oxygen production device adopts advanced membrane separation technology to effectively separate oxygen-rich gas and waste nitrogen gas through the difference in the permeation rate of oxygen and nitrogen in the membrane. Among them, the waste nitrogen gas is introduced into the turbine of the turbocharger, and the exhaust gas energy is used to drive the compressor to work, thereby realizing energy recovery and conversion. In the connection design of the system, the exhaust gas access pipe and the exhaust gas discharge pipe are responsible for the introduction and discharge of exhaust gas respectively, and the oxygen-rich gas suction pipe transports the oxygen-rich gas generated by the oxygen production device to the compressor for pressurization, and the oxygen supply pipeline serves as a channel connecting the gas outlet of the compressor and the oxygen-demanding part of the vehicle, ensuring that the oxygen-rich gas can be stably and efficiently supplied to the oxygen-demanding parts such as the car or the gas engine.

[0037] In order to achieve accurate monitoring and control of the system status, this application also introduces components such as a first flow sensor, a first pressure sensor, a second flow sensor, and a second pressure sensor, which can capture key parameters such as exhaust gas flow, exhaust gas pressure, oxygen-rich gas flow, and oxygen-rich gas pressure in real time, and provide accurate data support for the controller. Based on these data, the controller can automatically adjust the working state of the turbocharger, including speed, compression ratio, etc., to optimize oxygen production efficiency and oxygen supply stability.

[0038] In addition, the vehicle oxygen production and supply system of the present application achieves a significant reduction in energy consumption by reducing the initial pressure of the oxygen-rich gas suction pipe and using a turbocharger for pressurization, thereby improving the energy efficiency of the oxygen production and supply process. Secondly, the effective use of waste nitrogen gas improves energy utilization efficiency, and the intelligent control strategy enables the system to be flexibly adjusted according to the different needs of the vehicle to meet a variety of application scenarios. By setting the permeate side pressure of the oxygen production membrane separation structure to be less than or equal to the normal atmospheric pressure and utilizing the boosting effect of the turbocharger, the system can achieve effective separation and oxygen supply requirements of oxygen without the need for additional high pressure, thereby reducing energy consumption and extending the service life of the membrane separation structure. The vehicle oxygen production and supply system and method of the present application not only achieve an efficient and energy-saving oxygen production and supply process, but also have good flexibility and adaptability.

[0039] The above is only a specific implementation of the present application, and any improvements made based on the concept of the present application are deemed to be within the protection scope of the present application.

Claims

1. A vehicle oxygen production and supply system, characterized in that: It includes an oxygen generator, a turbocharger, an exhaust gas inlet pipe, an exhaust gas outlet pipe, an oxygen-enriched gas suction pipe and an oxygen supply pipeline; The oxygen production device includes a waste nitrogen gas outlet and an oxygen-rich gas outlet; The turbocharger comprises a turbine and a compressor, wherein the turbine and the compressor are connected via a transmission shaft; Among them, the exhaust gas inlet pipe connects the waste nitrogen gas outlet of the oxygen production device and the gas inlet of the turbine, the exhaust gas discharge pipe connects the gas outlet of the turbine, the oxygen-rich gas suction pipe connects the oxygen-rich gas outlet of the oxygen production device and the gas inlet of the compressor, and the oxygen supply pipeline connects the gas outlet of the compressor.

2. The vehicle oxygen production and supply system according to claim 1, characterized in that: The exhaust gas inlet pipe is provided with a first flow sensor and a first pressure sensor.

3. The vehicle oxygen production and supply system according to claim 2, characterized in that: The oxygen supply pipeline is provided with a second flow sensor and a second pressure sensor.

4. The vehicle oxygen production and supply system according to claim 1, characterized in that: The invention also comprises a controller, which is connected to the turbocharger and is used for monitoring and controlling the working state of the turbocharger.

5. The vehicle oxygen production and supply system according to claim 1, characterized in that: The oxygen supply pipeline is connected to the oxygen supply pipeline of the vehicle.

6. The vehicle oxygen production and supply system according to claim 1, characterized in that: It also includes a muffler, which is arranged on the exhaust gas exhaust pipe and / or the oxygen supply pipeline.

7. The vehicle oxygen production and supply system according to claim 1, characterized in that: The oxygen production device comprises an oxygen production membrane separation structure, and the permeate side pressure of the oxygen production membrane separation structure is less than or equal to ordinary atmospheric pressure.

8. A vehicle oxygen production and supply method, which uses the vehicle oxygen production and supply system according to any one of claims 1 to 7, characterized in that: The steps include: Air is introduced into the oxygen production device to obtain oxygen-rich gas and waste nitrogen gas by oxygen production membrane separation; The waste nitrogen gas is introduced into the gas inlet of the turbine in the turbocharger, and the turbine drives the compressor to pressurize the oxygen-rich gas in the oxygen-rich gas suction pipe; Oxygen is supplied to the oxygen supply pipe of the vehicle through the oxygen supply pipeline.

9. The vehicle oxygen production and supply method according to claim 8, characterized in that: The method also includes acquiring data of a first flow sensor, a first pressure sensor, a second flow sensor, and a second pressure sensor through a controller, and controlling the working state of the turbocharger according to the acquired data.

10. The vehicle oxygen production and supply method according to claim 8, characterized in that: The pressure of the oxygen-rich gas suction pipe is less than or equal to the normal atmospheric pressure, and the gas pressure is increased to a pressure greater than the normal atmospheric pressure by a compressor.

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