Oxygen-enriched combustion ammonia engine device and power system
Through the design of air separation and gas circulation loop, the space and safety issues of the oxygen-rich combustion engine are solved, the ammonia combustion efficiency and exhaust gas treatment are improved, and efficient ammonia combustion and pollutant emission reduction are achieved.
Patent Information
- Application Number
- CN202511043983.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-28
- Publication Date
- 2025-10-17
AI Technical Summary
Existing oxygen-rich combustion engines require oxygen bottles, which take up a lot of space, have high storage pressures, and pose safety risks. At the same time, the high concentrations of NH3 and NOx pollutants produced by ammonia combustion are difficult to effectively treat.
An air separation module is used to separate air into oxygen and nitrogen to form a gas circulation loop. The air is compressed by an air compressor and the oxygen flow rate is adjusted to provide an oxygen-rich environment to improve ammonia combustion stability. The post-treatment module is used to enhance the catalyst efficiency to treat pollutants.
It improves the stability and efficiency of ammonia combustion, reduces system energy consumption, effectively treats NH3 and NOx pollutants in tail gas, simplifies the system structure, and reduces safety hazards.
Smart Images
Figure CN120798604A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of engine, in particular to an oxygen-enriched combustion ammonia engine device and power system. BACKGROUND
[0002] Ammonia, as a carbon-free fuel, has the advantage of easy storage and transportation, and is considered as one of the important choices to replace traditional fossil fuels in the future. However, ammonia has poor combustion characteristics, with high ignition difficulty and slow combustion speed, which leads to problems such as unstable combustion and low efficiency when using ammonia fuel in traditional ignition engines. In order to improve the combustion efficiency of ammonia, oxygen-enriched combustion methods and strategies can be used to improve the combustion of ammonia. The traditional solution is to provide oxygen through external oxygen cylinders, but oxygen cylinders occupy a large space, have high storage pressure, and have safety hazards. In addition, the traditional catalyst is difficult to handle the pollutants such as NH3 and NOx generated after ammonia engine combustion, and the oxygen concentration in the exhaust component needs to be regulated to promote the oxidation activity of NH3.
[0003] Therefore, the oxygen-enriched combustion engine in the prior art needs to be configured with an oxygen cylinder, which has the problems of large space occupation, high storage pressure, safety hazards, etc. SUMMARY
[0004] The present application provides an oxygen-enriched combustion ammonia engine device and power system to solve the defects of large space occupation, high storage pressure, safety hazards, etc. caused by the need to configure an oxygen cylinder in the prior art oxygen-enriched combustion engine.
[0005] The present application provides an oxygen-enriched combustion ammonia engine device, comprising: An air separation module having a first inlet, a first outlet, a second outlet and a third outlet, the air separation module being used to separate air into oxygen and nitrogen, the first inlet being used to introduce air, the first outlet and the second outlet being used to discharge oxygen and the proportion of oxygen discharged by the first outlet and the second outlet being adjustable, and the third outlet being used to discharge nitrogen; An air compressor in communication with the first inlet and the first outlet respectively and forming a circulation loop; An engine module in communication with the first outlet; An aftertreatment module in communication with the engine module and the second outlet respectively.
[0006] The oxygen-enriched combustion ammonia engine device provided by the present application further comprises: A first flow regulating unit arranged at the first outlet and used to regulate the flow of oxygen separated by the air separation module into the engine module and the air compressor.
[0007] The oxygen-enriched combustion ammonia engine device provided by the application further comprises: A second flow regulating unit is arranged at the second outlet and is used for regulating the flow of oxygen separated by the air separation module and entering the post-processing module.
[0008] The oxygen-enriched combustion ammonia engine device provided by the application further comprises: A third flow regulating unit is arranged between the first flow regulating unit and the engine module and is used for regulating the flow of oxygen entering the engine module.
[0009] The oxygen-enriched combustion ammonia engine device provided by the application further comprises: The ammonia fuel engine has a first air inlet and a first air outlet, and the first air inlet is communicated with the first outlet; The supercharger has a second air inlet and a second air outlet, the second air inlet is used for inhaling air from the environment and is communicated with the first air inlet and the air compressor, and the first air outlet is communicated with the post-processing module through the second air outlet.
[0010] The oxygen-enriched combustion ammonia engine device provided by the application further comprises: The ammonia escape catalyst is respectively communicated with the second air outlet and the second outlet; The selective catalytic reduction device is connected at the outlet of the ammonia escape catalyst.
[0011] The oxygen-enriched combustion ammonia engine device provided by the application further comprises: The storage tank is communicated with the third outlet.
[0012] The oxygen-enriched combustion ammonia engine device provided by the application further comprises:
[0013] The application further provides a power system, which comprises the oxygen-enriched combustion ammonia engine device.
[0014] The power system provided by the application further comprises: The power wheel is driven by the energy obtained by the work of the engine module.
[0015] The oxygen-enriched combustion ammonia engine device provided by the application comprises an air separation module, an air compressor, an engine module and a post-processing module. The air separation module has a first inlet, a first outlet, a second outlet and a third outlet, is used for separating air into oxygen and nitrogen, the first inlet is used for inputting air, the first outlet and the second outlet are used for discharging oxygen and the proportion of oxygen discharged by the first outlet and the second outlet is adjustable, and the third outlet is used for discharging nitrogen; the air compressor is in communication with the first inlet and the first outlet respectively and forms a circulation loop; the engine module is in communication with the first outlet; and the post-processing module is in communication with the engine module and the second outlet respectively. The oxygen-enriched combustion ammonia engine device provided by the application separates oxygen and nitrogen through the air separation module, the air compressor compresses air to provide separation power for the air separation module and realizes gas circulation, the separated oxygen-enriched gas can be input into the engine module on one hand to improve the combustion of ammonia, meet the demand of the ammonia fuel engine for oxygen, improve combustion stability, improve combustion efficiency, reduce system energy consumption, and on the other hand can be input into the post-processing module to increase the oxygen proportion in the tail gas, improve the catalytic efficiency of the catalyst in the post-processing, solve the problem of high-concentration NH3 and NOx and other pollutants in the tail gas; in addition, the proportion of the oxygen-enriched gas flowing into different parts can be controlled according to the operating condition to meet the demand of the ammonia fuel engine for oxygen and the tail gas emission requirement at the same time.
[0016] Further, the power system provided by the application has the same advantages as above because it comprises the oxygen-enriched combustion ammonia engine device provided by the application. BRIEF DESCRIPTION OF DRAWINGS
[0017] In order to more clearly illustrate the technical solutions in the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.
[0018] Figure 1 It is a structural schematic view of the oxygen-enriched combustion ammonia engine device provided in one of the embodiments of the application.
[0019] Reference signs: 1, storage tank; 2, air separation module; 3, first flow regulating unit; 4, second flow regulating unit; 5, air compressor; 6, ammonia fuel engine; 7, power wheel; 8, supercharger; 9, ammonia escape catalyst; 10, selective catalytic reduction device; 11, third flow regulating unit. DETAILED DESCRIPTION
[0020] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be clearly and completely described below with reference to the drawings in the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based upon the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts should fall into the scope of the present application.
[0021] In the description of the present embodiments, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present embodiments and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present embodiments.
[0022] In addition, the terms "first", "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present embodiments, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise explicitly specified.
[0023] In the present embodiments, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "connection", "connection", "fixation" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present embodiments can be understood according to the specific circumstances.
[0024] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature is "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.
[0025] The present application will be described below in conjunction with Figure 1 An oxygen-enriched combustion ammonia engine device is described in the present application. The oxygen-enriched combustion ammonia engine device comprises an air separation module 2, an air compressor 5, an engine module and an aftertreatment module. The solid line in the figure represents the direction of oxygen or nitrogen gas flow, the dashed line represents the direction of energy flow, and the dotted line represents the direction of exhaust gas flow.
[0026] The air separation module 2 has a first inlet, a first outlet, a second outlet and a third outlet, the air separation module 2 is used to separate air into oxygen and nitrogen, the first inlet is used to introduce air, the first outlet and the second outlet are used to discharge oxygen and the proportion of oxygen discharged by the first outlet and the second outlet is adjustable, and the third outlet is used to discharge nitrogen; the air compressor 5 is in communication with the first inlet and the first outlet respectively and forms a circulation loop; the engine module is in communication with the first outlet; and the aftertreatment module is in communication with the engine module and the second outlet respectively.
[0027] The air separation module 2 can adopt a membrane separation device, air is introduced into the membrane separation device through the first inlet, and the air is decomposed into oxygen and nitrogen in a high-pressure environment, wherein the separated oxygen is discharged from the membrane separation device through the first outlet and the second outlet respectively, and the separated nitrogen is discharged from the membrane separation device through the third outlet.
[0028] Specifically, the membrane separation technology is a method of separating gases based on the difference in permeation rate of different gas molecules when passing through the membrane material. The membrane separation device for separating oxygen and nitrogen usually adopts a semi-permeable membrane, which allows smaller oxygen molecules to pass through the membrane material faster than nitrogen molecules, thereby achieving the separation of the two.
[0029] The membrane separation process is roughly as follows: 1. Compressed air: First, the air is compressed and pretreated to remove impurities such as oil, water and particles.
[0030] 2. Membrane separation: The pretreated air is sent into the membrane assembly, and oxygen, carbon dioxide and some water will pass through the membrane faster, while nitrogen will pass through the membrane more slowly or not at all.
[0031] 3. Collecting product gas: the oxygen gas rapidly permeated is collected as one of the products and discharged through the first and second outlets, while the nitrogen gas is discharged as another product through the third outlet.
[0032] The air compressor 5 is used to receive air or oxygen separated by the membrane separation device. The air compressor 5 compresses the received gas and inputs it into the membrane separation device, separates it into nitrogen and oxygen through the membrane separation device, and inputs the separated oxygen into the medium into the air compressor 5, forming a gas circulation loop, thereby realizing the circulation of compressed gas between the air compressor 5 and the membrane separation device; and with multiple compressions of the membrane separation device, oxygen with a higher concentration is separated. It should be understood that in order to ensure that the gas in the above-mentioned circulation loop is sufficient, air can be supplemented into the circulation loop as needed after a certain number of circulation times.
[0033] The engine module can adopt an ammonia fuel engine 6, which is an engine using ammonia as fuel. The oxygen generated by the membrane separation device is input into the engine through the first outlet to improve the combustion of ammonia, meet the oxygen demand of the ammonia fuel engine 6, improve the combustion stability, improve the combustion efficiency, and reduce the system energy consumption.
[0034] The exhaust gas generated after the engine combustion is treated by the aftertreatment module and then discharged. In order to reduce the concentration of pollutants in the exhaust gas, the oxygen discharged through the second outlet is input into the aftertreatment module to increase the oxygen proportion in the exhaust gas, improve the catalytic efficiency of the catalyst in the aftertreatment, and solve the problem of high concentration of NH3 and NOx and other pollutants in the exhaust gas.
[0035] When a certain amount of air is input into the air separation module 2, the amount of separated oxygen is determined, and the separated oxygen-rich gas can be input into the engine module or the aftertreatment module through the pipeline. According to the operating conditions, the proportion of the oxygen-rich gas flowing into different parts is controlled. The proportion of the oxygen-rich gas flowing into the engine module is higher, which can improve the engine combustion efficiency, improve the combustion stability, and reduce the system energy consumption. The proportion of the oxygen-rich gas flowing into the aftertreatment module is higher, which can improve the catalytic efficiency of the catalyst in the aftertreatment and solve the problem of high concentration of NH3 and NOx and other pollutants in the exhaust gas.
[0036] It can be understood that the oxygen discharged through the first outlet and received by the air compressor 5 and the engine module can be divided by pipeline arrangement.
[0037] The application provides an oxygen-enriched combustion ammonia engine device, which comprises an air separation module 2, an air compressor 5, an engine module and a post-processing module. The air separation module 2 has a first inlet, a first outlet, a second outlet and a third outlet, the air separation module 2 is used for separating air into oxygen and nitrogen, the first inlet is used for introducing air, the first outlet and the second outlet are used for discharging oxygen and the proportion of oxygen discharged from the first outlet and the second outlet is adjustable, and the third outlet is used for discharging nitrogen; the air compressor 5 is in communication with the first inlet and the first outlet respectively and forms a circulation loop; the engine module is in communication with the first outlet; and the post-processing module is in communication with the engine module and the second outlet respectively. The oxygen-enriched combustion ammonia engine device provided by the application separates oxygen and nitrogen through the air separation module 2, compresses air through the air compressor 5 to provide separation power for the air separation module 2 and realize gas circulation, the separated oxygen-enriched gas can be introduced into the engine module on one hand to improve the combustion of ammonia, meet the demand of the ammonia fuel engine 6 for oxygen, improve combustion stability, improve combustion efficiency, reduce system energy consumption, and on the other hand, can be introduced into the post-processing module to increase the oxygen proportion in the tail gas, improve the catalytic efficiency of the catalyst in the post-processing, solve the problem of high-concentration NH3 and NOx and other pollutants in the tail gas; in addition, the proportion of the oxygen-enriched gas flowing into different parts can be controlled according to the operating condition, and the demand of the ammonia fuel engine 6 for oxygen and the tail gas emission requirement can be met at the same time.
[0038] In one of the embodiments of the application, the oxygen-enriched combustion ammonia engine device further comprises a first flow regulating unit 3 arranged at the first outlet and used for regulating the flow of the oxygen separated by the air separation module 2 into the engine module and the air compressor 5. Specifically, the first flow regulating unit 3 adopts a flow regulating valve, and the oxygen flow into the engine and the air compressor 5 is regulated by the opening degree of the flow regulating valve. In addition, the oxygen flow into the engine and the air compressor 5 can be regulated according to the operation strategy, and the excess oxygen reenters the air compressor 5, thereby improving the pressure of the initial gas entering the air compressor 5 to improve the pressure of the outlet of the air compressor.
[0039] Further, the oxygen-enriched combustion ammonia engine device further comprises a third flow regulating unit 11 arranged between the first flow regulating unit 3 and the engine module and used for regulating the oxygen flow into the engine module. Specifically, the third flow regulating unit 11 also adopts a flow regulating valve, and the oxygen flow into the engine is regulated by the opening degree of the flow regulating valve, so as to control the oxygen concentration in the engine and meet the demand of the ammonia fuel engine 6 for oxygen.
[0040] In one of the embodiments of the present application, the oxygen-enriched combustion ammonia engine device further comprises a second flow regulating unit 4 arranged at the second outlet for regulating the flow of oxygen separated by the air separation module 2 into the aftertreatment module. Specifically, the second flow regulating unit 4 also adopts a flow regulating valve, and the oxygen flow into the aftertreatment module is regulated by the opening degree of the flow regulating valve, so as to improve the catalytic efficiency of the catalyst in the aftertreatment and solve the problem of high concentration of NH3 and NOx and other pollutants in the exhaust gas.
[0041] In one of the embodiments of the present application, the engine module comprises an ammonia fuel engine 6 and a supercharger 8. The ammonia fuel engine 6 has a first air inlet and a first exhaust outlet, and the first air inlet is communicated with the first outlet; the supercharger 8 has a second air inlet and a second exhaust outlet, the second air inlet is used for sucking air from the environment and is communicated with the first air inlet and the air compressor 5, and the first exhaust outlet is communicated with the aftertreatment module through the second exhaust outlet.
[0042] In the above embodiment, the engine module adopts the form of ammonia fuel turbine engine, has the supercharger 8, the supercharger 8 sucks air from the environment through the second air inlet, and part of the air pressurized by the supercharger 8 enters the ammonia fuel engine 6 through the first air inlet, and the other part enters the air compressor as a supplement gas, and the air entering the air separation module is further pressurized by the supercharger and the air compressor, and the separation effect is better. The ammonia fuel engine 6 is also communicated with the first outlet to receive the oxygen separated by the air separation module 2, so as to improve the oxygen concentration in the ammonia fuel engine 6; in addition, the second exhaust outlet is connected between the first exhaust outlet and the aftertreatment module, and the supercharger 8 receives the exhaust gas of the ammonia fuel engine 6 through the second exhaust outlet to be pressurized, so as to further increase the intake pressure and improve the output power of the engine, and at the same time, the waste gas energy is utilized to improve the thermal efficiency of the system. Specifically, the supercharger 8 collects the exhaust gas of the engine, recovers the energy (including kinetic energy and released energy) thereof, and utilizes the energy as a part of the power source of the supercharger 8, for example, the kinetic energy carried by the exhaust gas is used to drive the air pump to realize the pressurization of the supercharger 8, or the exhaust gas is used to release the energy (such as a heat engine) to be converted into the kinetic energy of the supercharger 8.
[0043] In one of the embodiments of the present application, the aftertreatment module comprises an ammonia escape catalyst 9 and a selective catalytic reduction device 10. The ammonia escape catalyst 9 is communicated with the second exhaust outlet and the second outlet respectively, and is used for receiving and treating the exhaust gas; the selective catalytic reduction device 10 is connected at the outlet of the ammonia escape catalyst 9, and is used for further treating the exhaust gas.
[0044] The working principle of the ammonia escape catalyst 9 for treating the exhaust gas is as follows: Ammonia slip catalyst 9, abbreviated as ASC, is mainly used to convert ammonia into nitrogen and water through catalytic reaction, thereby reducing ammonia emissions. The catalyst in ASC can promote the following chemical reaction: 4NH3+3O2→2N2+6H2O This means that unused ammonia reacts further in the presence of oxygen to form harmless nitrogen and water, thereby avoiding direct emission of ammonia into the environment. The oxygen component required in the above process is provided by the air separation module 2.
[0045] In the above embodiment, the exhaust gas is treated by ASC and then by selective catalytic reducer 10, which is a device for treating nitrogen oxides (NOx) in engine exhaust gas. The SCR system converts NOx into harmless nitrogen (N2) and water (H2O) by using a reducing agent (usually urea aqueous solution) under the action of a catalyst, thereby reducing harmful emissions. The basic working principle of SCR technology is as follows: 1. Catalytic conversion: When the exhaust gas containing ammonia passes through a specially designed catalyst, ammonia reacts with NOx under the action of the catalyst to form nitrogen and water vapor. This process requires precise control of temperature, ammonia amount, and exhaust gas flow rate to achieve optimal results.
[0046] 2. Emission purification: After treatment by the SCR system, most of the NOx is effectively converted into harmless substances, thereby significantly reducing the pollutant content in the exhaust gas.
[0047] Generally, there is more unburned ammonia in ammonia engines, and ammonia injection can be selected; otherwise, before the catalytic conversion step, a reducing agent is injected: urea aqueous solution is injected into the exhaust stream and decomposed into ammonia (NH3) under high temperature conditions.
[0048] In one embodiment of the present application, the oxygen-enriched combustion ammonia engine device further comprises a storage tank 1 connected to the third outlet for storing separated nitrogen, which can be used for braking or air suspension, and the separated oxygen-enriched gas can enter the engine intake or enter the aftertreatment module through the pipeline.
[0049] In one embodiment of the present application, the energy obtained by the engine module is used to drive the air compressor 5, and the energy obtained by the engine module is used to compress air for the air compressor 5.
[0050] In summary, the present application has the following advantages: 1. The separated oxygen-enriched gas has three effects, one is to enter the engine to form an oxygen-rich environment, improve the combustion efficiency of ammonia combustion of the engine, two is to enter the intake duct to further improve the gas pressure, so that the air compressor can obtain higher pressure, three is to enter the exhaust duct, improve the oxygen concentration in the exhaust, so that SCR and ASC can more efficiently treat NH3 and NOx emissions in the tail gas; 2. The flow regulating valve can control the amount of oxygen-enriched gas entering the engine intake duct and the exhaust duct, and the proportion of oxygen-enriched gas flowing into different parts can be controlled according to the operating conditions by controlling the opening of the flow regulating valve. The higher the proportion of oxygen-enriched gas flowing into the engine, the better the combustion in the engine, and the higher the proportion of oxygen-enriched gas flowing into the exhaust duct, the better the aftertreatment 3. In order to further optimize the performance of the entire system, a two-stage supercharging system can be used, which uses part of the engine output to drive the air compressor to compress air, improve the pressure of the gas entering the membrane separation device, and improve the efficiency of membrane separation; the energy of the engine exhaust gas is used to drive the exhaust turbine to increase the intake pressure, on the one hand, to improve the energy density of the intake, increase the output power of the ammonia engine, and improve the combustion efficiency of ammonia; on the other hand, to improve the initial pressure of the gas entering the air compressor, thereby obtaining higher pressure.
[0051] The application also provides a power system. The power system comprises the oxygen-enriched combustion ammonia engine device in the above-mentioned embodiments of the application.
[0052] The power system provided by the application has the same advantages as described above, because it comprises the oxygen-enriched combustion ammonia engine device of the application.
[0053] In one embodiment of the application, the power system further comprises a power wheel 7, and the energy obtained by the engine module acting on the power wheel 7, and the power wheel 7 is driven to rotate by the engine module to realize the driving of the power system.
[0054] The device embodiments described above are only schematic, and the units described as separate components can or can not be physically separated, and the components shown as units can or can not be physical units, i.e. they can be located in one place or distributed on multiple units. Part or all of the modules can be selected to achieve the purpose of the embodiment scheme according to actual needs. Those skilled in the art can understand and implement it without creative labor.
[0055] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.
Claims
1. An oxygen-rich combustion ammonia engine device, characterized in that: include: An air separation module (2) has a first inlet, a first outlet, a second outlet, and a third outlet, the air separation module (2) being used to separate air into oxygen and nitrogen, the first inlet being used to introduce air, the first outlet and the second outlet being used to discharge oxygen, and the ratio of oxygen discharged by the first outlet and the second outlet being adjustable, and the third outlet being used to discharge nitrogen; an air compressor (5), connected to the first inlet and the first outlet, respectively, to form a circulation loop; an engine module, in communication with the first outlet; The post-processing module is communicated with the engine module and the second outlet respectively.
2. The oxygen-rich combustion ammonia engine device according to claim 1, characterized in that: Also includes: A first flow regulating unit (3) is provided at the first outlet and is used to regulate the flow of oxygen separated by the air separation module (2) entering the engine module and the air compressor (5).
3. The oxygen-rich combustion ammonia engine device according to claim 1, characterized in that: Also includes: A second flow regulating unit (4) is provided at the second outlet and is used to regulate the flow of oxygen separated by the air separation module (2) into the post-processing module.
4. The oxygen-rich combustion ammonia engine device according to claim 2, characterized in that: Also includes: A third flow regulating unit (11) is provided between the first flow regulating unit (3) and the engine module, and is used to regulate the flow of oxygen entering the engine module.
5. The oxygen-rich combustion ammonia engine device according to any one of claims 1 to 3, characterized in that: The engine module comprises: An ammonia fuel engine (6) having a first air intake passage and a first exhaust passage, wherein the first air intake passage is in communication with the first outlet; The supercharger (8) has a second air intake passage and a second exhaust passage, wherein the second air intake passage is used to draw air from the environment and is connected to the first air intake passage and the air compressor, and the first exhaust passage is connected to the post-processing module via the second exhaust passage.
6. The oxygen-rich combustion ammonia engine device according to claim 4, characterized in that: The post-processing module includes: an ammonia slip catalyst (9), connected to the second exhaust passage and the second outlet respectively; A selective catalytic reduction device (10) is connected to the outlet of the ammonia slip catalyst (9).
7. The oxygen-rich combustion ammonia engine device according to any one of claims 1 to 3, characterized in that: Also includes: The storage tank (1) is connected to the third outlet.
8. The oxygen-rich combustion ammonia engine device according to any one of claims 1 to 3, characterized in that: The energy obtained by the engine module from performing work acts on the air compressor (5).
9. A power system, characterized in that: include: An oxygen-rich combustion ammonia engine device as claimed in any one of claims 1 to 8.
10. The power system according to claim 9, characterized in that: Also includes: A power wheel (7), energy obtained by the engine module performing work acts on the power wheel (7).