A device for diagnosing the space-time distribution of solid-liquid combustion of metal-suspended fuel

Abstract

The application relates to a device for diagnosing the space-time distribution of solid-liquid combustion of metal suspended fuel, which comprises an atomization sampling module, an atmosphere adjusting module, an ignition combustion module, a combustion diagnosing module and a control module; the atomization sampling module is connected with the ignition combustion module and is used for conveying fuel samples into the ignition combustion module; the atmosphere adjusting module is connected with the ignition combustion module and is used for conveying gas into the ignition combustion module; the combustion diagnosing module monitors the internal state of the ignition combustion module; and the control module is connected with the atomization sampling module, the atmosphere adjusting module, the ignition combustion module and the combustion diagnosing module. Compared with the prior art, the device has the advantages of low cost and high diagnosis dimension.

Description

Technical Field

[0001] This invention relates to the field of engine fuel technology, and in particular to a device for diagnosing the spatiotemporal distribution of solid-liquid combustion in metal-suspended fuels. Background Technology

[0002] With the rapid development of hypersonic vehicles, higher demands are being placed on fuel energy density. Traditional liquid hydrocarbon fuels, due to their relatively low density, have a significant disadvantage in volumetric calorific value and can no longer meet current development needs. In contrast, metal particles have a huge advantage in volumetric calorific value. By adding metal particles to liquid hydrocarbon fuels to form novel metal-suspended fuels, the fuel energy density can be significantly improved while maintaining fuel fluidity, effectively meeting the fuel energy performance requirements of hypersonic vehicles and showing great development potential.

[0003] This type of fuel mainly consists of solid metal particles and liquid hydrocarbon fuels. Its ignition and combustion process mainly involves complex processes such as the evaporation and combustion of hydrocarbon fuels, the agglomeration and ignition of solid metal particles, and heat and mass transfer between the solid and liquid phases. It differs significantly from single-phase fuels, exhibiting complex solid-liquid combustion coupling characteristics. During combustion, the solid and liquid components of the fuel both compete with and synergistically promote the combustion of the oxidant. Simultaneously, the solid and liquid combustion processes occur synchronously, are mutually integrated, and are difficult to separate effectively. The combustion distribution of solid and liquid components during fuel combustion is key to clarifying the combustion mechanism of this type of novel fuel and achieving efficient combustion.

[0004] Currently, the ignition and combustion characteristics of metal-suspended fuels are often determined through single-droplet ignition or engine ignition experiments. Single-droplet ignition experiments suffer from drawbacks such as large droplet volume and experimental environments deviating from actual operating conditions, while engine ignition experiments face challenges such as harsh testing environments and limited diagnostic methods. Furthermore, the analysis of the metal-suspended fuel as a whole during ignition and combustion is limited by the methods and scales used to study the combustion distribution of its solid and liquid components, lacking in-depth research on the spatiotemporal distribution of solid-liquid combustion. Therefore, there is an urgent need to develop a device to achieve multi-dimensional and efficient diagnostic analysis of the spatiotemporal distribution of solid-liquid combustion in metal-suspended fuels, thereby promoting the research and application of metal-suspended fuels. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology in terms of the limited means and scale for studying the solid-liquid combustion distribution during the ignition and combustion of metal suspended fuels, and to provide a device for diagnosing the spatiotemporal distribution of solid-liquid combustion in metal suspended fuels.

[0006] The objective of this invention can be achieved through the following technical solutions:

[0007] A device for diagnosing the spatiotemporal distribution of solid-liquid combustion of metal-suspended fuels includes an atomization sample introduction module, an atmosphere conditioning module, an ignition and combustion module, a combustion diagnosis module, and a control module.

[0008] The atomization sample introduction module is connected to the ignition and combustion module and is used to deliver fuel samples into the ignition and combustion module. The atmosphere conditioning module is connected to the ignition and combustion module and is used to deliver gas into the ignition and combustion module. The combustion diagnostic module monitors the internal state of the ignition and combustion module. The control module is connected to the atomization sample introduction module, the atmosphere conditioning module, the ignition and combustion module, and the combustion diagnostic module.

[0009] Preferably, the atomization injection module includes an ultrasonic atomizer and a syringe pump;

[0010] One end of the ultrasonic atomizer is connected to the ignition and combustion module, and the other end is connected to the injection pump. The injection pump contains a fuel sample. The ultrasonic atomizer is connected to a power source, and the injection pump and the power source are connected to a control module.

[0011] Preferably, the atmosphere conditioning module includes a gas cylinder cabinet, an electronic flow controller, and a flow control valve;

[0012] One end of the electronic flow controller is connected to the gas cylinder cabinet, and the other end is connected to the flow control valve. The flow control valve is connected to the ignition and combustion module, and both the electronic flow controller and the flow control valve are connected to the control module.

[0013] Preferably, there are multiple electronic flow controllers connected in parallel.

[0014] Preferably, the ignition and combustion module includes a combustion chamber and an arc ignition assembly;

[0015] One end of the combustion chamber is provided with an air inlet and a sample inlet. The air inlet is connected to an atmosphere conditioning module, and the sample inlet is connected to an atomizing sample inlet module. The arc ignition assembly is connected to a control module and is mounted on the combustion chamber.

[0016] Preferably, the combustion diagnostic module includes a water-cooled sampling component, and the combustion chamber is provided with a sampling hole. The water-cooled sampling component obtains fuel samples inside the combustion chamber through the sampling hole.

[0017] Preferably, there are multiple sampling holes, which are evenly distributed along the same straight line at equal intervals and located above the combustion chamber.

[0018] Preferably, the combustion diagnostic module includes a first imaging component and a second imaging component. Transparent windows are provided on both sides of the wall of the combustion chamber. The first and second imaging components obtain the combustion state of the fuel sample inside the combustion chamber through the transparent windows. Both the first and second imaging components are connected to a control module.

[0019] Preferably, the first photographic component is a full-wavelength high-speed camera, the second photographic component is a single-wavelength high-speed camera, and there are multiple single-wavelength high-speed cameras. A filter is provided in front of the lens of each single-wavelength high-speed camera, and the transparent window is a rectangular quartz window.

[0020] Preferably, an emergency switch is provided between the atomizing sample delivery module and the control module for manually controlling the power switch of the atomizing sample delivery module.

[0021] Compared with the prior art, the present invention has the following advantages:

[0022] 1. In this scheme, after the device is connected, the control module controls the atomization sample introduction module and the atmosphere conditioning module to deliver fuel samples and the required gases into the ignition and combustion module. Then, the ignition and combustion module ignites the fuel sample to conduct a fuel combustion test. The combustion diagnosis module obtains the combustion product entities at different combustion stages and different locations inside the ignition and combustion module for subsequent refined testing and analysis. It obtains the evolution of solid and liquid components in combustion, realizes the extraction of intermediate products of metal suspension fuel combustion and combustion blocking, and can seal fuel in different combustion stage states to obtain combustion intermediate product entities for subsequent analysis and testing. It realizes online and offline multi-dimensional coupled analysis of the spatiotemporal distribution of solid and liquid combustion of metal suspension fuel samples, and provides mutually verifiable multi-dimensional solid and liquid combustion distribution diagnostic results.

[0023] 2. This method utilizes an injection pump to regulate the amount of fuel sample entering the system, and a flow control valve and electronic flow controller to control the amount of gas entering the system. Through the synergistic effect of these two systems, the target fuel ratio is effectively achieved to maintain stable combustion. The amount of fuel sample used in a single test is controlled to be 10-100 mL, allowing for longer combustion diagnostic time while effectively controlling sample usage, thus significantly reducing analytical testing costs.

[0024] 3. In this scheme, the metal-suspended fuel can burn stably in a semi-enclosed combustion chamber, which is not easily affected by external factors. Furthermore, the transparent quartz window set on the combustion chamber wall allows for unobstructed observation by a high-speed camera. Multi-band synchronous image analysis of the fuel combustion process is performed using a single-wavelength to full-wavelength high-speed camera, enabling real-time stripping analysis and continuous recording of the solid-liquid combustion distribution of the metal-suspended fuel. Attached Figure Description

[0025] Figure 1This is a schematic diagram of the device for diagnosing the spatiotemporal distribution of solid-liquid combustion of metal-suspended fuels provided by the present invention.

[0026] In the diagram: 1. Control module; 2. Emergency switch; 3. Combustion chamber; 4. Full-band high-speed camera; 5. Water-cooled sampling assembly; 6. Arc ignition assembly; 7. Injection pump; 8. Power supply; 9. Ultrasonic atomizer; 10. Flow control valve; 11. Electronic flow controller; 12. Gas cylinder cabinet; 13. Single-band high-speed camera; 14. Filter; 15. Transparent window; 16. Sampling hole. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0029] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0030] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of this invention is usually placed during use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0031] It should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0032] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] Example 1

[0034] This embodiment provides a device for diagnosing the spatiotemporal distribution of solid-liquid combustion of metal-suspended fuels, including an atomization sample introduction module, an atmosphere conditioning module, an ignition and combustion module, a combustion diagnosis module, and a control module 1;

[0035] The atomization sample introduction module is connected to the ignition and combustion module and is used to deliver fuel samples into the ignition and combustion module. The atmosphere conditioning module is connected to the ignition and combustion module and is used to deliver gas into the ignition and combustion module. The combustion diagnosis module monitors the internal state of the ignition and combustion module. The control module 1 is connected to the atomization sample introduction module, the atmosphere conditioning module, the ignition and combustion module and the combustion diagnosis module.

[0036] Working principle: After the device is connected, the control module 1 controls the atomization sample injection module and the atmosphere conditioning module to deliver fuel samples and the required gases into the ignition and combustion module. Then, the ignition and combustion module ignites the fuel sample to conduct a fuel combustion test. The combustion diagnostic module obtains the combustion product entities of different combustion processes for subsequent refined testing and analysis to obtain the evolution of solid and liquid components in combustion.

[0037] In this scheme, after the device is connected, the control module 1 controls the atomization sample introduction module and the atmosphere conditioning module to deliver fuel samples and the required gases into the ignition and combustion module. Then, the ignition and combustion module ignites the fuel sample to conduct a fuel combustion test. The combustion diagnosis module obtains the combustion product entities at different combustion stages and different locations inside the ignition and combustion module for subsequent refined testing and analysis. It obtains the evolution of solid and liquid components in combustion, realizes the extraction of intermediate products in the combustion of metal-suspended fuels and the interruption of combustion, and can seal the state of fuel under different combustion stages. It can obtain the combustion intermediate product entities for subsequent analysis and testing. It realizes online and offline multi-dimensional coupled analysis of the spatiotemporal distribution of solid and liquid combustion of metal-suspended fuel samples, and provides mutually verifiable multi-dimensional solid and liquid combustion distribution diagnostic results.

[0038] In a preferred embodiment, the nebulization injection module includes an ultrasonic nebulizer 9 and a syringe pump 7;

[0039] One end of the ultrasonic atomizer 9 is connected to the ignition and combustion module, and the other end is connected to the injection pump 7. The injection pump 7 contains a fuel sample. The ultrasonic atomizer 9 is connected to a power supply 8. The injection pump 7 and the power supply 8 are connected to the control module 1.

[0040] The atmosphere control module includes a gas cylinder cabinet 12, an electronic flow controller 11, and a flow control valve 10;

[0041] One end of the electronic flow controller 11 is connected to the gas cylinder cabinet 12, and the other end is connected to the flow control valve 10. The flow control valve 10 is connected to the ignition and combustion module. Both the electronic flow controller 11 and the flow control valve 10 are connected to the control module 1. There are multiple electronic flow controllers 11, and they are connected in parallel.

[0042] The amount of fuel sample entering the system is regulated by an injection pump, while the amount of gas entering the system is controlled by a flow control valve and an electronic flow controller. Through the synergistic effect of these two systems, the target fuel ratio is effectively achieved, maintaining stable fuel combustion. The single test volume is controlled to 10-100 mL, allowing for longer combustion diagnostic time while effectively controlling sample usage, significantly reducing analytical testing costs.

[0043] Specifically, the ignition and combustion module includes a combustion chamber 3 and an arc ignition assembly 6;

[0044] One end of the combustion chamber 3 is provided with an air inlet and a sample inlet. The air inlet is connected to the atmosphere conditioning module, and the sample inlet is connected to the atomization sample inlet module. The arc ignition assembly 6 is connected to the control module 1 and is set on the combustion chamber 3.

[0045] The combustion diagnostic module includes a water-cooled sampling component 5. Sampling holes 16 are provided on the combustion chamber 3. The water-cooled sampling component 5 obtains fuel samples from inside the combustion chamber 3 through the sampling holes 16. There are multiple sampling holes 16, evenly distributed at equal intervals along a straight line and located above the combustion chamber 3. The water-cooled sampling component 5 uses water cooling to inhibit the combustion reaction, thereby obtaining intermediate combustion products of solid and liquid components at different combustion stages. The actual number of measurement points is no less than five.

[0046] In one preferred embodiment, the combustion diagnostic module includes a first imaging component and a second imaging component. Transparent windows 15 are provided on both sides of the wall of the combustion chamber 3. The first imaging component and the second imaging component obtain the combustion state of the fuel sample inside the combustion chamber 3 through the transparent windows 15. Both the first imaging component and the second imaging component are connected to the control module.

[0047] The first imaging component is a full-wavelength high-speed camera 4, and the second imaging component is a single-wavelength high-speed camera 13. There are multiple single-wavelength high-speed cameras 13. A filter 14 is provided in front of the lens of the single-wavelength high-speed camera 13, and the transparent window 15 is a rectangular quartz window.

[0048] Metal-suspended fuels can burn stably within a semi-enclosed combustion chamber, making them less susceptible to external interference. Furthermore, a transparent quartz window on the combustion chamber wall allows for unobstructed observation by a high-speed camera. Multi-band synchronous image analysis of the fuel combustion process can be performed using a single-wavelength to full-wavelength high-speed camera, enabling real-time stripping analysis and continuous recording of the solid-liquid combustion distribution of the metal-suspended fuel.

[0049] An emergency switch 2 is provided between the nebulizer injection module and the control module 1 for manually controlling the power switch of the nebulizer injection module. In case of emergency, the experimenter can cut off the power supply to the fuel injection module using the physical emergency switch 2.

[0050] In conjunction with the above preferred embodiments, such as Figure 1 As shown, this embodiment provides an optimal device for diagnosing the spatiotemporal distribution of solid-liquid combustion in metal-suspended fuels. The device consists of an atomization sample introduction module, an atmosphere conditioning module, an ignition and combustion module, and a combustion diagnosis module. The atomization sample introduction module includes an ultrasonic atomizer 9 and a syringe pump 7. The atmosphere conditioning module includes a gas cylinder cabinet 12, an electronic flow controller 11, and a flow control valve 10 connected in sequence via pipelines. The flow control valve 10 is connected to the sample inlet at one end of the combustion chamber 3 via a pipeline. The ignition and combustion module includes the combustion chamber 3 and an arc ignition assembly 6. One section of the combustion chamber 3 is provided with a sample inlet and an air inlet. A rectangular quartz window 15 is provided on the wall, and multiple sampling ports 16 are provided on the top surface. The combustion diagnosis module includes a water-cooled sampling assembly 5, a full-wavelength high-speed camera 4, and two single-wavelength high-speed cameras 13. A characteristic wavelength filter 14 is provided in front of the two single-wavelength high-speed cameras.

[0051] This invention uses a syringe pump for sample injection combined with ultrasonic atomization to achieve stable atomization of metal suspension fuel, and uses electric arc ignition to quickly ignite the fuel to simulate the fuel atomization and combustion state in an engine. The fuel injection volume per unit time is small, with each experiment using about 10-100 mL of material, which is much lower than that of engine ignition tests, greatly saving testing costs. At the same time, small-scale combustion is safe and controllable, which can effectively reduce testing risks.

[0052] This invention sets up an air inlet next to the ultrasonic atomization inlet and adjusts the fuel injection and air intake ratio synchronously by computer. By reasonably adjusting the oxygen content of the air intake, it can effectively maintain stable fuel combustion and obtain different combustion conditions, thus laying a good foundation for combustion diagnosis.

[0053] This invention employs two single-band high-speed cameras 13 and one full-band high-speed camera 4 to continuously record the combustion process of metal-suspended fuel. One of the single-wavelength high-speed cameras has a filter corresponding to the characteristic emission wavelength of liquid hydrocarbon fuel placed in front of it, and the other single-wavelength high-speed camera has a filter corresponding to the characteristic emission wavelength of solid metal particles placed in front of it. This enables image stripping of the overall combustion of metal-suspended fuel and the spatiotemporal distribution of solid-liquid components during combustion.

[0054] This invention uses a water-cooled sampling device 5 to sample intermediate combustion products at different locations in the combustion chamber 3 through the sampling port 16 of the combustion chamber, and uses water cooling to cool the sampled products to block the combustion reaction, thereby obtaining combustion product entities at different combustion stages for subsequent refined testing and analysis to obtain the evolution of solid and liquid components in combustion.

[0055] like Figure 1 As shown, after the device is connected, the ultrasonic atomizing power supply, flow control signal, high-speed camera signal, and injection pump signal are all connected in parallel to the computer to achieve computer integrated control. In this embodiment, the control module 1 is the computer.

[0056] Before the experiment, the metal suspension fuel sample was loaded into the syringe pump 7, the gas cylinder in the gas cylinder cabinet 12 was turned on, and the pipeline was connected. The sample injection and air intake flow rate were set in the control software of the computer 1. After preparation, the air intake valve was opened first. After the airflow in the combustion chamber 3 was stabilized, the power supply 8 of the ultrasonic atomizing device and the syringe pump 7 were turned on through the program control switch in the computer 1. The fuel reached the ultrasonic atomizer 9 through the pipeline and was atomized and sent into the combustion chamber to mix with the air intake. Ignition was achieved by the electric arc ignition component 6.

[0057] During the experiment, a full-band high-speed camera 4 and a single-band high-speed camera 13 were placed outside the quartz window 15 of the combustion chamber 3 and were controlled by a computer 1 and synchronously triggered with the arc ignition component 6 to monitor the sample in real time. The measurement data was transmitted to the computer for display, allowing the experimenters to observe the combustion distribution of the sample and its different components within the combustion chamber 3 in real time. The computer 1 has an embedded data recording program, which allows the experimenters to save and analyze the observed data. Simultaneously, the experimenters could use multiple water-cooled sampling components 5 to obtain combustion intermediate products at different combustion stages through different sampling holes 16 at the top of the combustion chamber 3. After gas-solid separation, the material evolution of the fuel solid-liquid components at different combustion stages could be obtained using instruments such as gas chromatography, scanning electron microscopy, and X-ray diffraction.

[0058] In case of an emergency, the experimenters can cut off the power to the fuel injection module using the physical emergency switch 2.

[0059] This device is suitable for metal suspension fuels composed of liquid hydrocarbon fuels (such as JP-10, RP-3, n-heptane, ethanol, etc.) and solid metal particles (such as boron, aluminum, magnesium, etc.), with a solid content range of 0-30 wt%. For samples with high viscosity, the viscosity can be reduced by adding surfactants.

[0060] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A device for diagnosing the spatiotemporal distribution of solid-liquid combustion in metal-suspended fuels, characterized in that, It includes an atomization sample introduction module, an atmosphere conditioning module, an ignition and combustion module, a combustion diagnosis module, and a control module (1); The atomizing sample introduction module is connected to the ignition and combustion module and is used to deliver fuel samples into the ignition and combustion module. The atmosphere conditioning module is connected to the ignition and combustion module and is used to deliver gas into the ignition and combustion module. The combustion diagnosis module obtains the state of combustion product entities at different positions and different combustion processes inside the ignition and combustion module. The control module (1) is connected to the atomizing sample introduction module, the atmosphere conditioning module, the ignition and combustion module and the combustion diagnosis module. The atomization injection module includes an ultrasonic atomizer (9) and an injection pump (7); One end of the ultrasonic atomizer (9) is connected to the ignition and combustion module, and the other end is connected to the injection pump (7). The injection pump (7) contains a fuel sample. The ultrasonic atomizer (9) is connected to a power supply (8). The injection pump (7) and the power supply (8) are connected to the control module (1). The atmosphere conditioning module includes a gas cylinder cabinet (12), an electronic flow controller (11), and a flow control valve (10); One end of the electronic flow controller (11) is connected to the gas cylinder cabinet (12), and the other end is connected to the flow control valve (10). The flow control valve (10) is connected to the ignition and combustion module. Both the electronic flow controller (11) and the flow control valve (10) are connected to the control module (1). The ignition and combustion module includes a combustion chamber (3) and an arc ignition assembly (6); One end of the combustion chamber (3) is provided with an air inlet and a sample inlet. The air inlet is connected to an atmosphere conditioning module, and the sample inlet is connected to an atomizing sample inlet module. The arc ignition assembly (6) is connected to a control module (1) and is set on the combustion chamber (3).

2. The device for diagnosing the spatiotemporal distribution of solid-liquid combustion in metal-suspended fuels according to claim 1, characterized in that, The number of electronic flow controllers (11) is multiple, and each electronic flow controller (11) is connected in parallel.

3. The device for diagnosing the spatiotemporal distribution of solid-liquid combustion in metal-suspended fuels according to claim 1, characterized in that, The combustion diagnostic module includes a water-cooled sampling component (5), and a sampling hole (16) is provided on the combustion chamber (3). The water-cooled sampling component (5) obtains fuel samples inside the combustion chamber (3) through the sampling hole (16).

4. The device for diagnosing the spatiotemporal distribution of solid-liquid combustion in metal-suspended fuels according to claim 3, characterized in that, The number of sampling holes (16) is multiple, and each sampling hole (16) is evenly distributed on the same straight line at equal intervals and located above the combustion chamber (3).

5. The device for diagnosing the spatiotemporal distribution of solid-liquid combustion in metal-suspended fuels according to claim 1, characterized in that, The combustion diagnostic module includes a first imaging component and a second imaging component. Transparent windows (15) are provided on both sides of the wall of the combustion chamber (3). The first imaging component and the second imaging component obtain the combustion state of the fuel sample inside the combustion chamber (3) through the transparent windows (15). The first imaging component and the second imaging component are both connected to the control module.

6. The device for diagnosing the spatiotemporal distribution of solid-liquid combustion in metal-suspended fuels according to claim 5, characterized in that, The first imaging component is a full-wavelength high-speed camera (4), the second imaging component is a single-wavelength high-speed camera (13), there are multiple single-wavelength high-speed cameras (13), a filter (14) is provided in front of the lens of the single-wavelength high-speed camera (13), and the transparent window (15) is a rectangular quartz window.

7. The device for diagnosing the spatiotemporal distribution of solid-liquid combustion in metal-suspended fuels according to claim 1, characterized in that, An emergency switch (2) is provided between the atomizing sample introduction module and the control module (1) for manually controlling the power switch of the atomizing sample introduction module.

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