An experimental platform for microwave plasma assisted metal and water reaction

Abstract

The application discloses an experimental platform for microwave plasma assisted metal and water reaction, which comprises a combustion adjusting system, a fuel comprehensive supply system, a microwave plasma generating system, a diagnosis system and a comprehensive control system; wherein the combustion adjusting system comprises a premixing chamber and a combustion chamber which are sequentially communicated from bottom to top, a rectifier and an igniter are arranged in the premixing chamber, and the rectifier is used for controlling the uniformity of mixed gas; the combustion chamber comprises a microwave combustion assisting zone, an observation and diagnosis zone and a product analysis zone which are sequentially distributed from bottom to top, a back pressure valve is arranged at the top of the product analysis zone, and the back pressure valve is used for regulating and controlling the reaction pressure in the combustion chamber. The application constructs a stable and accurate comprehensive experimental platform, can better observe and study the influence of microwave on the combustion of metal and water reaction and analyze specific influencing factors, and powerfully promotes the research on judging the combustion dominant mechanism and the like.

Description

Technical Field

[0001] The present application relates to an experimental platform for microwave plasma-assisted metal-water reaction, belonging to the technical field of combustion testing. Background Art

[0002] New underwater propulsion systems, using high-energy metal propellants as fuel and ramjet water as an oxidizer, are essential for underwater vehicles achieving ultra-high speeds and ultra-long ranges. The higher the metal content in the propellant, the greater the propellant energy and the longer the underwater vehicle's range. However, further increasing the metal content in the propellant inevitably significantly reduces the corresponding oxidizer, ammonium perchlorate (AP). This makes it difficult for high-metal-content propellants to achieve self-sustaining combustion, and both initiating and maintaining the metal-water reaction are challenging. This is because the heat released by the propellant's own combustion is limited, while water absorbs a significant amount of heat during evaporation. This results in a combustion chamber environment that fails to meet the conditions for a vigorous metal-water reaction, preventing positive energy feedback to the combustion surface and halting self-sustaining propellant combustion. External energy injection is an effective technical approach to broaden the boundaries of self-sustaining stable combustion in high-metal-content propellants. Integrating high-efficiency auxiliary combustion technology with existing underwater propulsion system configurations holds significant significance for the development of underwater propulsion systems.

[0003] In a combustion chamber environment characterized by high temperature, high pressure, and a plethora of gaseous and liquid water, microwave plasma-assisted combustion exhibits unique advantages. On the one hand, high-power microwaves exhibit significant thermal effects, effectively heating water molecules and metal particles, thereby increasing the atomization and evaporation rate of water, the metal-water reaction, and the flame propagation speed. At the same time, ionized water vapor forms a plasma, providing free radicals such as OH and O for the metal oxidation reaction, increasing the metal oxidation reaction rate, promoting heat release, and exhibiting a strong kinetic enhancement effect. On the other hand, microwave energy input does not require electrodes, allowing for physical isolation from water in the structure, thus avoiding the risk of short-circuit failure. These advantages make microwave plasma-assisted combustion of high-metal-content propellants with water a highly promising engineering application.

[0004] However, the combustion chamber of an underwater propulsion system is a complex, multiphase environment containing metallic particle-laden combustion gases and a water vapor atmosphere. The discharge mechanism of microwave plasma differs significantly from that in a pure gas phase, and the discharge mechanism in this complex, multiphase "solid-liquid-gas-plasma" environment remains poorly understood. Currently, however, no experimental platform exists for this type of research, making it difficult to conduct in-depth studies of its specific mechanisms.

[0005] Therefore, there is an urgent need to design a stable and precise comprehensive experimental measurement platform for microwave plasma-assisted metal-water reaction fuel combustion. Summary of the Invention

[0006] In order to solve the above problems, this application proposes an experimental platform for microwave plasma-assisted metal-water reaction. By setting up a combustion regulation system, a comprehensive fuel supply system, a microwave plasma generation system, a diagnostic system and an integrated control system, a stable and accurate comprehensive experimental platform is constructed, which can better observe and study the influence of microwaves on the combustion of metal-water reaction and analyze its specific influencing factors, and effectively promote research on determining its dominant combustion mechanism.

[0007] According to one aspect of the present application, an experimental platform for microwave plasma-assisted metal-water reaction is provided, comprising a combustion regulation system, an integrated fuel supply system, a microwave plasma generation system, a diagnostic system, and an integrated control system;

[0008] The combustion regulation system includes a premixing chamber and a combustion chamber connected in sequence from bottom to top. A rectifier and an igniter are provided in the premixing chamber. The rectifier is used to control the uniformity of the mixed gas. The combustion chamber includes a microwave combustion-assisted area, an observation and diagnosis area, and a product analysis area distributed in sequence from bottom to top. A back pressure valve is provided on the top of the product analysis area. The back pressure valve is used to regulate the reaction pressure in the combustion chamber.

[0009] The fuel integrated supply system includes a fuel supply device and a water vapor supply device, the fuel supply device and the microwave plasma generating system are arranged on both sides of the microwave combustion-assisted zone, and the water vapor supply device is communicated with the premixing chamber;

[0010] The diagnostic system includes a detection device and a spectrum diagnostic device, the detection device is electrically connected to the spectrum diagnostic device, and the detection device and the observation and diagnostic area are arranged on the same horizontal plane;

[0011] The integrated control system includes a main control console and a sampling probe. The sampling probe is electrically connected to the main control console and is arranged on one side of the product analysis area.

[0012] Optionally, the premixing chamber includes a first mixing chamber and a second mixing chamber, the first mixing chamber is arranged at the bottom of the second mixing chamber, and the second mixing chamber is communicated with the microwave combustion-assisted zone;

[0013] The rectifying device is disposed between the first mixing chamber and the second mixing chamber.

[0014] Optionally, the rectifying device is a porous plate with evenly distributed holes.

[0015] It is very critical to achieve uniform mixing of gases through the rectifier. Uneven mixing may lead to excessive local reactions or incomplete reactions. Uniform mixing of gases can ensure that hydrogen and oxygen molecules have more appropriate contact opportunities in the reaction area, making the reaction more complete and stable.

[0016] Using a porous plate as a rectifying device allows the gas to flow through it, causing the velocity and pressure to change due to the throttling effect of the small holes, thereby making the flow more uniform. For a mixture of hydrogen and oxygen, the porous plate can initially disrupt any uneven flow of the two gases as they pass through, resulting in a more even distribution of gas molecules downstream of the plate.

[0017] Optionally, the water vapor supply device includes an air supply portion and a water supply portion, the air supply portion is communicated with the first mixing chamber, and the water supply portion is communicated with the second mixing chamber.

[0018] Preferably, the gas supply unit includes a hydrogen gas cylinder, an oxygen gas cylinder, a gas flow valve and corresponding gas delivery pipelines, and the carrier gas is supplied from the gas cylinder to the first mixing chamber via the gas flow valve.

[0019] Optionally, the microwave plasma generating system is connected to the microwave combustion-assisted zone via a glass window, and the fuel supply device is used to spray metal particles into the microwave combustion-assisted zone.

[0020] Preferably, the glass window is made of quartz, and the metal particles are magnesium particles.

[0021] Optionally, the microwave plasma generating system includes a microwave source, a circulator, a three-screw adapter, a waveguide and a power meter, and the microwave source, the circulator, the three-screw adapter and the waveguide are coaxially arranged in sequence.

[0022] Optionally, the microwave source is a solid-state microwave source for generating microwaves of a fixed frequency.

[0023] Specifically, the power meter is connected to the circulator, so that the solid-state microwave source generates microwaves of a fixed frequency, which are fed into the combustion chamber through the circulator, the three-screw mixer and the waveguide.

[0024] Optionally, a first observation window and a second observation window are symmetrically arranged on both sides of the observation and diagnosis area;

[0025] The detection device includes a sensor assembly and an optical detection assembly. The sensor assembly is used to monitor the temperature and pressure in the combustion chamber. The optical detection assembly is arranged on the same straight line as the first observation window and the second observation window.

[0026] Optionally, the sensor assembly includes a pressure sensor and a thermocouple; the optical detection assembly includes a laser, a lens and a high-speed camera, the laser and the lens are sequentially arranged on the outside of the first observation window, and the high-speed camera is arranged on the outside of the second observation window.

[0027] Optionally, the combustion adjustment system further includes a fixing device, which is used to connect and fix the combustion chamber and the premixing chamber.

[0028] The beneficial effects of this application include but are not limited to:

[0029] 1. The experimental platform for microwave plasma-assisted metal-water reaction provided in this application helps to systematically analyze the promoting effect of microwaves on the combustion reaction of metals and water and the influencing factors. This experimental platform can not only observe and analyze the direct effect of microwaves on the reaction, but also study other related influencing factors, which is conducive to further exploring the reaction mechanism.

[0030] 2. The experimental platform for microwave plasma-assisted metal-water reaction provided in this application realizes flexible adjustment of plasma density by using a solid microwave source. By changing the output power of the microwave source, the experimenter can precisely control the plasma density, thereby simulating different experimental conditions and observing the specific effects of these variables on the metal-water reaction rate and combustion efficiency. This flexibility makes the experiment more targeted and repeatable, and can be used in a wide range of research.

[0031] 3. The microwave plasma-assisted metal-water reaction experimental platform provided in this application utilizes a gas flow valve to flexibly adjust the pressure and flow of the combustion carrier gas. Combined with a back-pressure valve, this platform allows for precise release of post-combustion gases. This allows for more flexible experimental setup, enabling simulation of diverse practical scenarios and enhancing understanding of complex combustion processes.

[0032] 4. The experimental platform for microwave plasma-assisted metal-water reaction provided in this application can effectively adjust the water vapor concentration in the combustion chamber by setting up a premixing chamber and a rectifier device, simulating different gas environments, which is of great significance for studying the influence of different environments on metal-water reactions.

[0033] By designing a porous structure and reasonable airflow guidance, we ensure that the gases are evenly mixed before entering the combustion chamber, avoiding incomplete or excessive local reactions, enhancing the stability of the experiment, and simulating a variety of real operating environments to improve the applicability and reliability of the experimental results. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0035] Figure 1 Schematic diagram of the experimental platform for microwave plasma-assisted metal-water reaction according to an embodiment of the present application.

[0036] List of parts and reference numerals:

[0037] 1. Combustion chamber; 2. Premixing chamber; 3. Rectifier; 4. Ignitor; 5. Microwave combustion-assisted area; 6. Observation and diagnosis area; 7. Product analysis area; 8. Back-pressure valve; 9. Fuel supply device; 10. Main control console; 11. Sampling probe; 12. First mixing chamber; 13. Second mixing chamber; 14. Hydrogen cylinder; 15. Oxygen cylinder; 16. Gas flow valve; 17. Water supply unit; 18. Microwave source; 19. Circulator; 20. Three-screw mixer; 21. Waveguide; 22. Power meter; 23. First observation window; 24. Second observation window; 25. Pressure sensor; 26. Thermocouple; 27. Laser; 28. Lens; 29. ​​High-speed camera; 30. Fixing device. DETAILED DESCRIPTION

[0038] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0039] In order to more clearly understand the above-mentioned objects, features and advantages of the present application, the present application is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other in the absence of conflict.

[0040] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present application is not limited to the specific embodiments disclosed below.

[0041] In addition, in the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0042] In addition, the terms "first", "second", etc. are used only for descriptive purposes and do not connote or imply relative importance or a quantity of the indicated elements. Thus, a feature defined with "first", "second", etc. can include one or more of the features. In the description of the application, the meaning of "a plurality" is two or more, unless explicitly specified and limited otherwise.

[0043] In the present application, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection", "fixed", and the like, should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection, and can also be communication; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0045] Reference Figure 1 The embodiments of the present application disclose an experimental platform for microwave plasma assisted metal and water reaction, which comprises a combustion adjusting system, a fuel comprehensive supply system, a microwave plasma generating system, a diagnosis system and a comprehensive control system.

[0046] The combustion adjusting system comprises a premixing chamber 2 and a combustion chamber 1 which are sequentially communicated from bottom to top, and the premixing chamber 2 is provided with a rectifier device 3 and an igniter 4; the rectifier device 3 is used for controlling the uniformity of the mixed gas; in the embodiment, hydrogen and oxygen are filled into the premixing chamber 2 according to the reaction equivalent ratio, are uniformly mixed by the rectifier device 3 and are ignited, so as to simulate the high-temperature water vapor environment in the working process of the underwater power device.

[0047] The combustion chamber 1 is mainly the area for microwave discharge and the reaction and combustion of metal and water. The combustion chamber 1 includes a microwave combustion-assisted area 5, an observation and diagnosis area 6 and a product analysis area 7, which are distributed from bottom to top. A back pressure valve 8 is set at the top of the product analysis area 7. The combustion products are finally ejected by the back pressure valve 8. The back pressure valve 8 is used to regulate the reaction pressure in the combustion chamber 1.

[0048] This embodiment utilizes an automatic spherical back-pressure valve 8. Its adjustment mechanism is automatic, with the valve core's movement controlled by an electric or pneumatic actuator. This valve is suitable for applications requiring frequent back-pressure adjustments and high precision. The valve core of this type of control valve is spherical, and during adjustment, it rotates to change the contact area with the valve body, thereby varying the flow cross-sectional area.

[0049] The integrated fuel supply system includes a fuel supply device 9 and a water vapor supply device. The fuel supply device 9 and the microwave plasma generating system are arranged on both sides of the microwave combustion-assisted zone 5, and the water vapor supply device is connected to the premixing chamber 2; the diagnostic system includes a detection device and a spectral diagnostic device. The detection device is electrically connected to the spectral diagnostic device, and the detection device and the observation diagnostic zone 6 are arranged on the same horizontal plane; the integrated control system includes a main control console 10 and a sampling probe 11. The sampling probe 11 is electrically connected to the main control console 10, and the sampling probe 11 is arranged on one side of the product analysis zone 7.

[0050] As an embodiment, the premixing chamber 2 includes a first mixing chamber 12 and a second mixing chamber 13, the first mixing chamber 12 is arranged at the bottom of the second mixing chamber 13, and the second mixing chamber 13 is connected to the microwave combustion-assisted zone 5; the rectifying device 3 is arranged between the first mixing chamber 12 and the second mixing chamber 13.

[0051] Furthermore, the rectifying device 3 is a porous plate with evenly distributed holes. The diameter, spacing and distribution density of the holes can be designed by those skilled in the art according to the flow rate, pressure and required mixing uniformity of hydrogen and oxygen.

[0052] In this combustion chamber, water vapor is transported from bottom to top. Since the wall is the cold end, part of the water vapor condenses near the inner surface. The overall flow field will show a flow trend with high density in the middle and low density around.

[0053] Specifically, the combustion chamber 1 and the porous plate are both made of 304 stainless steel. The porous plate is a circular plate that matches the combustion chamber 1. The holes in the plate are distributed with a smaller diameter in the middle and larger diameters in the peripheral portions. The middle portion, formed by an inner circle with half the radius, has a 1mm diameter, while the peripheral portion, the remaining portion of the porous plate, has a 2.3mm diameter. The igniter 4, a commercially available electric spark igniter, is located on the sidewall of the second mixing chamber 13 and ignites the mixed gas, generating high-temperature water vapor and simulating a high-temperature water vapor environment.

[0054] By setting the porous plate, it is possible to avoid energy loss caused by diffusion of the intermediate fluid to the surroundings, and to limit the flow of the intermediate mainstream, making the mixing more uniform.

[0055] As an embodiment, the water vapor supply device includes an air supply portion and a water supply portion 17 . The air supply portion is communicated with the first mixing chamber 12 , and the water supply portion 17 is communicated with the second mixing chamber 13 .

[0056] The gas supply part includes a hydrogen cylinder 14, an oxygen cylinder 15, a gas flow valve 16 and corresponding gas delivery pipelines. The carrier gas is supplied from the cylinder to the first mixing chamber 12 via the gas flow valve 16. The water supply part 17 is a water pump, which is used to adjust the reaction environment temperature in the combustion chamber 1 without changing the gas environment composition.

[0057] By adjusting the flow ratio of water inlet to hydrogen and oxygen to control the water vapor ambient temperature and water vapor concentration, a wide temperature range of 800-3000K can be achieved.

[0058] As an embodiment, the microwave plasma generating system is connected to the microwave combustion-assisted zone 5 via a glass window, and the fuel supply device 9 is used to spray metal particles into the microwave combustion-assisted zone 5. Specifically, the positions of the microwave plasma generating system and the fuel supply device 9 can be adjusted by those skilled in the art as needed.

[0059] Furthermore, the microwave plasma generating system includes a microwave source 18, a circulator 19, a three-screw adapter 20, a waveguide 21 and a power meter 22. The microwave source 18, the circulator 19, the three-screw adapter 20 and the waveguide 21 are coaxially arranged in sequence.

[0060] Specifically, the glass window is made of high-strength quartz glass. On one side of the microwave-assisted combustion zone 5, a solid-state microwave source 18 generates microwaves of a fixed frequency, which are fed into the cavity via a circulator 19, a three-screw mixer 20, and a waveguide 21. The three-screw mixer 20 is adjusted to minimize the reflected power measured by the power meter 22. After the microwaves excite the mixed gas to generate plasma, the plasma density is adjusted by varying the output power of the microwave source 18. On the other side of the microwave-assisted combustion zone 5, metal particles are ejected into the mainstream of the high-temperature water vapor via a piston-cylinder ejection method. In this embodiment, the metal particles are magnesium particles.

[0061] As an embodiment, a first observation window 23 and a second observation window 24 are symmetrically provided on both sides of the observation and diagnosis area 6 for diagnosing the combustion state of magnesium. The material of the observation windows is high-strength quartz glass.

[0062] The detection device includes a sensor assembly and an optical detection assembly. The sensor assembly is used to monitor the temperature and pressure in the combustion chamber 1. The optical detection assembly is arranged on the same straight line as the first observation window 23 and the second observation window 24.

[0063] Specifically, the sensor assembly includes a pressure sensor 25 and a thermocouple 26. The pressure sensor 25 is positioned near the product analysis zone 7, and the thermocouple 26 is positioned near the microwave-assisted combustion zone 5. The optical detection assembly includes a laser 27, a lens 28, and a high-speed camera 29. The laser 27 and lens 28 are positioned outside the first observation window 23, respectively. The high-speed camera 29 is positioned outside the second observation window 24, aligned with the lens 28 and the two observation windows to facilitate optical path. The diagnostic system primarily utilizes commercially available spectral diagnostic equipment to diagnose the combustion process of magnesium particles under microwave plasma.

[0064] Diagnosis of magnesium particle combustion process under microwave plasma includes:

[0065] A. Temperature and distribution of condensed-phase matter: Pseudo-color thermometry is used to analyze high-speed photographic images of condensed-phase matter to determine its temperature distribution.

[0066] B. Main composition and distribution of condensed phase matter: The condensed phase matter is collected by quenching and cooling downstream of the observation window and analyzed by transmission electron microscopy and XRD to determine the composition and distribution of the condensed phase matter;

[0067] C. OH radical concentration distribution: OH-PLIF was used to diagnose the magnesium / water vapor multiphase reaction flow and obtain the OH radical concentration distribution in the flow field;

[0068] D. Flame structure: High-speed photography is used to obtain the flame morphology of the burning surface of magnesium particles.

[0069] In summary, the combustion process of magnesium in a water vapor environment is analyzed by combining the condensed phase particle temperature, condensed phase material composition distribution, OH radical concentration distribution, and flame structure. Combined with the obtained reaction kinetic model, the dominant combustion mechanism can be determined.

[0070] As an embodiment, the combustion adjustment system further includes a fixing device 30 , which is used to connect and fix the combustion chamber 1 and the premixing chamber 2 .

[0071] Specifically, the fixing device 30 is a bolt, and the combustion chamber 1 and the premixing chamber 2 are fixed by bolt connection, and the connection is sealed with an O-ring of customized size made of perfluoroether material.

[0072] The experimental method of this experimental platform includes the following steps:

[0073] First, based on actual experimental requirements, hydrogen and oxygen at a certain equivalence ratio were injected into the first mixing chamber 12 through the gas inlet. After thorough mixing by the rectifier 3, the mixed gas was ignited by the igniter 4 to generate high-temperature water vapor, simulating a high-temperature water vapor environment. The water pump was turned on to adjust the flow rate of liquid water to adjust the temperature to the desired temperature for this experiment. Simultaneously, the microwave plasma generation system was activated, and the plasma electric field intensity was varied by varying the power. The three-screw regulator 20 was adjusted to minimize the reflected power measured by the power meter 22. The pressure was adjusted by adjusting the backpressure valve 8. When the pressure in the combustion chamber 1 stabilized, the fuel supply device 9 was opened, and the piston cylinder was used to eject magnesium particles into the mainstream of the high-temperature water vapor. By also varying the supply position of the magnesium powder, the characteristics of the magnesium powder combustion process at different stages could be diagnosed. The flame structure of the particles was obtained, and the surface temperature variation during the particle combustion process was analyzed using pseudo-color thermometry.

[0074] The products of magnesium powder combustion at different stages are sampled and collected by sampling probe 11 in product analysis area 7. After the experiment, the combustion products are subjected to electron microscopy and energy spectrum analysis to obtain more detailed information such as the morphology and composition of the combustion products, thereby achieving the corresponding experimental objectives.

[0075] The various embodiments in this specification are described in a progressive manner. Similar parts between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the system embodiments are generally similar to the method embodiments, so the description is relatively simple. For relevant parts, refer to the description of the method embodiments.

[0076] The foregoing is merely an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should all be included within the scope of the claims of the present application.

Claims

1. An experimental platform for microwave plasma-assisted metal-water reaction, characterized in that: It includes combustion regulation system, integrated fuel supply system, microwave plasma generation system, diagnostic system and integrated control system; The combustion regulation system includes a premixing chamber and a combustion chamber connected in sequence from bottom to top. A rectifier and an igniter are provided in the premixing chamber. The rectifier is used to control the uniformity of the mixed gas. The combustion chamber includes a microwave combustion-assisted area, an observation and diagnosis area, and a product analysis area distributed in sequence from bottom to top. A back pressure valve is provided on the top of the product analysis area. The back pressure valve is used to regulate the reaction pressure in the combustion chamber. The fuel integrated supply system includes a fuel supply device and a water vapor supply device, the fuel supply device and the microwave plasma generating system are arranged on both sides of the microwave combustion-assisted zone, and the water vapor supply device is communicated with the premixing chamber; The diagnostic system includes a detection device and a spectrum diagnostic device, the detection device is electrically connected to the spectrum diagnostic device, and the detection device and the observation and diagnostic area are arranged on the same horizontal plane; The integrated control system includes a main control console and a sampling probe, wherein the sampling probe is electrically connected to the main control console and is arranged on one side of the product analysis area; The rectifying device is a porous plate with evenly distributed holes; The microwave plasma generating system comprises a microwave source, a circulator, a three-screw adapter, a waveguide and a power meter, wherein the microwave source, the circulator, the three-screw adapter and the waveguide are coaxially arranged in sequence; The fuel supply device is used to spray metal particles into the microwave combustion-assisted zone using a piston cylinder, and the metal particles are magnesium particles.

2. The experimental platform for microwave plasma-assisted metal-water reaction according to claim 1, characterized in that: The premixing chamber includes a first mixing chamber and a second mixing chamber, the first mixing chamber is arranged at the bottom of the second mixing chamber, and the second mixing chamber is communicated with the microwave combustion-assisted zone; The rectifying device is disposed between the first mixing chamber and the second mixing chamber.

3. The experimental platform for microwave plasma-assisted metal-water reaction according to claim 2, characterized in that: The water vapor supply device includes an air supply portion and a water supply portion, the air supply portion is communicated with the first mixing chamber, and the water supply portion is communicated with the second mixing chamber.

4. The experimental platform for microwave plasma-assisted metal-water reaction according to claim 1, characterized in that: The microwave plasma generating system is connected to the microwave combustion-supporting zone through a glass window.

5. The experimental platform for microwave plasma-assisted metal-water reaction according to claim 1, characterized in that: The microwave source is a solid-state microwave source, which is used to generate microwaves of a fixed frequency.

6. The microwave plasma assisted metal-water reaction experimental platform according to claim 1, characterized in that: A first observation window and a second observation window are symmetrically arranged on both sides of the observation and diagnosis area; The detection device includes a sensor assembly and an optical detection assembly. The sensor assembly is used to monitor the temperature and pressure in the combustion chamber. The optical detection assembly is arranged on the same straight line as the first observation window and the second observation window.

7. The experimental platform for microwave plasma-assisted metal-water reaction according to claim 6, characterized in that: The sensor assembly includes a pressure sensor and a thermocouple; The optical detection assembly includes a laser, a lens, and a high-speed camera. The laser and the lens are sequentially arranged outside the first observation window, and the high-speed camera is arranged outside the second observation window.

8. The microwave plasma assisted metal-water reaction experimental platform according to claim 1, characterized in that: The combustion adjustment system further includes a fixing device, which is used to connect and fix the combustion chamber and the premixing chamber.

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