Single-particle suspension combustion test device and method

Abstract

The invention relates to the technical field of particle combustion, in particular to a single-particle suspension combustion test device and method.The device comprises a suspension unit used for enabling single particles to overcome the gravity effect to suspend to a combustion area; the ignition unit is used for providing multiple ignition modes for the suspended single particles, the control unit is used for receiving information and outputting instructions, and the installation unit is used for providing gas and pressure environments required by the test. According to the device and the method, the single particles are combusted in the suspended state, the situation that parts containing the single particles affect collection of combustion data is avoided, and meanwhile multiple ignition modes are provided so as to adapt to different types of single particles.

Description

Technical Field

[0001] The invention relates to the technical field of particle combustion, in particular to a single particle suspension combustion test device and method. Background Art

[0002] At present, the ignition method of metal particles in experimental devices is relatively simple, and the combustion experiment of single particles is usually carried out in a container, and its combustion will be disturbed by supports, etc., which will have a great impact on the research results. Therefore, a combustion test device with various ignition methods and avoiding the interference of particles by supports is needed. Summary of the invention

[0003] In view of the above problems existing in the prior art, the present invention is proposed.

[0004] Therefore, the problem to be solved by the present invention is how to prevent a single particle from being affected by the carrying container during combustion and affecting data collection.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a single particle suspension combustion test device, which includes a suspension unit, an ignition unit, a control unit and a mounting unit.

[0006] As a preferred solution of the single particle suspension combustion test device of the present invention, wherein: the suspension unit includes a suspension electrode and a voltage amplifier, the voltage amplifier is connected to the suspension electrode, and the suspension unit is used to allow the single particle to overcome the gravity and suspend to the combustion zone;

[0007] The ignition unit is arranged at one side of the suspension unit, and the ignition unit is used to ignite the suspended single particle.

[0008] As a preferred solution of the single particle suspension combustion test device of the present invention, the control unit includes a monitoring module and a processing module; the monitoring module is connected to the suspension unit, generates first information, and transmits it to the processing module; the processing module is connected to the ignition unit, generates a first instruction according to the first information and transmits it to the ignition unit;

[0009] The installation unit comprises a combustion chamber and an air supply module. The suspension unit and the ignition unit are installed in the combustion chamber. The installation unit uses the air supply module to change the combustion chamber environment to meet the experimental requirements.

[0010] As a preferred solution of the single particle suspension combustion test device of the present invention, the ignition unit includes a laser ignition module, which is arranged on the wall of the combustion chamber.

[0011] As a preferred solution of the single particle suspension combustion test device of the present invention, the ignition unit includes a resistance wire ignition module, which is arranged on the wall of the combustion chamber.

[0012] As a preferred embodiment of the single particle suspension combustion test device of the present invention, the suspension electrode comprises an upper metal plate and a lower metal plate, each of which is connected to a voltage amplifier. The upper metal plate is a hemisphere with the spherical surface facing the lower metal plate. The lower metal plate is a concave surface. The single particle is placed at the center of the concave surface of the lower metal plate.

[0013] The monitoring module includes a fiber optic spectrometer, a high-speed camera, a dual colorimetric camera, a temperature sensor, and a pressure sensor;

[0014] The installation unit further comprises a wall window, which is arranged on the wall surface of the combustion chamber, and the monitoring module is directly opposite to the wall window;

[0015] The processing module includes a computer, a synchronous trigger, and a controller. The computer, the synchronous trigger and the controller are connected to each other; the synchronous trigger is connected to the monitoring module and the ignition unit.

[0016] As a preferred solution of the single particle suspension combustion test device of the present invention, wherein: the combustion chamber includes a heating layer and a pressure relief valve, the heating layer is vertically arranged on the rear wall surface of the combustion chamber, and the pressure relief valve is arranged on the top cover of the combustion chamber;

[0017] The suspension unit also includes a rotating module, which is arranged at the bottom of the lower metal plate, including a stepping motor and a turntable, the center of the bottom surface of the turntable is fixedly connected to the top shaft of the stepping motor, and the top of the turntable is evenly surrounded by grooves, and the lower metal plate and the grooves are matched;

[0018] The suspension unit also includes a placement module, which is arranged on one side of the rotation module and is used for placing a single particle.

[0019] The present invention also provides the following technical solution: a single particle suspension combustion test method, which includes a preparation stage, placing a single particle at a specified position and adjusting the device so that the internal environment meets the experimental requirements;

[0020] In the suspension stage, a suspension unit is used to suspend a single particle to a specified position;

[0021] During the experimental phase, the ignition unit was used to ignite a single particle, and various signals and parameters during the combustion process were recorded.

[0022] As a preferred embodiment of the single particle suspension combustion test method of the present invention, the preparation stage includes placing the single particle used for the experiment into the center of the concave surface of the lower metal plate before the test begins, heating the combustion chamber, and supplying gas to the combustion chamber so that the combustion chamber reaches the temperature, atmosphere and pressure required for the test.

[0023] As a preferred embodiment of the single particle suspension combustion test method described in the present invention, the suspension stage includes: after reaching the required experimental environment, turning on the high-voltage amplifier, allowing the lower metal plate and the upper metal plate to carry positive and negative charges respectively, and the single particle on the lower metal plate is also positively charged; the electric field strength between the high-voltage electrostatic fields is adjusted by the high-voltage amplifier, and the position of the single particle is located by the monitoring module, and the first information is generated and transmitted to the processing module, and the processing module generates a first instruction based on the first information.

[0024] As a preferred solution of the single particle suspension combustion test method of the present invention, the experimental stage includes: the ignition unit ignites the single particle, and the synchronous trigger element works, the monitoring module is started, and various signals and parameters of the combustion process are recorded.

[0025] The beneficial effects of the present invention are as follows: by allowing the single particle to burn in a suspended state, the parts containing the single particle are prevented from affecting the collection of combustion data, and a variety of ignition modes are provided to adapt to different types of single particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0027] Figure 1 This is the overall structure diagram of the single particle suspension combustion test device.

[0028] Figure 2 This is the component connection diagram of the single particle suspension combustion test device.

[0029] Figure 3 Flow chart of the single particle suspension combustion test method. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0033] Example 1, reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, provides a single-particle suspension combustion test device, which includes a suspension unit 100, an ignition unit 200, a control unit 300 and an installation unit 400.

[0034] Specifically, the suspension unit 100 is used to ensure that the single particle is suspended to a specified position before being ignited, thereby avoiding the influence of irrelevant parts on the combustion data. The suspension unit 100 includes a suspension electrode 101 and a voltage amplifier 102. The suspension electrode 101 is divided into an upper and a lower part. The bottom part is positively charged and contacts the single particle. After being energized, the positive charge is collected and transferred to the single particle, while the top part is negatively charged. When the electric field strength reaches a certain level, the gravity of the single particle will be less than the electric field force, causing the single particle to jump up. At this time, the control unit 300 is used to adjust the electric field strength between the suspension electrodes 101, so that the single particle can stop at the specified position and remain suspended. The voltage amplifier 102 is connected to the suspension electrode 101, and the control unit 300 adjusts the voltage in real time through the voltage amplifier 102 to ensure the suspension stability of the single particle.

[0035] Since there is no three-dimensional minimum potential in the electrostatic field and the charge on the surface of a single particle changes during the experiment, a single particle cannot be stably suspended in a pure electrostatic field. It is necessary to introduce negative feedback regulation through the control unit 300 to adjust the voltage loaded between the suspension electrodes 101 in real time according to the position of the single particle to ensure the stable suspension of the single particle.

[0036] The ignition unit 200 is used to ignite a single particle. Different types of single particles are suitable for different ignition methods. Similarly, the phenomenon of the particle being instantly ignited and the signals and parameters generated during the combustion process can also be analyzed and compared.

[0037] Example 2, reference Figure 1 and Figure 2 , which is the second embodiment of the present invention, and this embodiment is based on the first embodiment.

[0038] The control unit 300 is used to monitor the position of a single particle and record the parameters generated when the single particle burns, and includes a monitoring module 301 and a processing module 302; the monitoring module 301 is connected to the suspension unit 100 to generate first information and transmit it to the processing module 302. The first information is divided into two parts. Before the single particle burns, the first information is the position data of the single particle, and during combustion, the first information is the data and parameters generated by the physical and chemical changes during the combustion of the single particle; the processing module 302 is connected to the ignition unit 200 to generate a first instruction based on the first information and transmit it to the ignition unit 200. The first instruction is also divided into two parts. Before the single particle burns, the first instruction is to adjust the suspension unit 100 to send the specified single particle to the specified position, to energize the single particle to suspend it, and then to ignite the single particle through the ignition unit 200, while ensuring that other single particles to be tested are in a position where they will not be affected.

[0039] The installation unit 400 is used to provide a suitable environment for the experiment, including a combustion chamber 401 and a gas supply module 402. The combustion chamber 401 provides a closed space for installing other components while ensuring that the combustion will not affect the surroundings. The gas supply module 402 adjusts the gas and pressure in the combustion chamber 401 to the requirements of the experiment; the suspension unit 100 and the ignition unit 200 are installed in the combustion chamber 401.

[0040] The ignition unit 200 includes a laser ignition module 201 , which is disposed at one side of the combustion chamber 401 , and the laser ignition module 201 faces the center of the electrostatic field.

[0041] When in use, the suspension position of a single particle in the combustion chamber 401 is located by the monitoring module 301, and the single particle is quickly ignited using the laser ignition module 201. The advantage of laser ignition is that it can generate high temperature in a very short time, accurately concentrate energy to a specific position, quickly ignite particles, have good ignition stability, are not easily affected by environmental factors, and have strong anti-interference ability and high safety. This ignition method is mainly selected to study the phenomenon of particles being instantly ignited in a very short time and the signals and parameters generated during the combustion process.

[0042] Example 3, reference Figure 1 and Figure 2 , which is the third embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0043] The control unit 300 is used to monitor the position of a single particle and record the parameters generated when the single particle burns, and includes a monitoring module 301 and a processing module 302; the monitoring module 301 is connected to the suspension unit 100 to generate first information and transmit it to the processing module 302. The first information is divided into two parts. Before the single particle burns, the first information is the position data of the single particle, and during combustion, the first information is the data and parameters generated by the physical and chemical changes during the combustion of the single particle; the processing module 302 is connected to the ignition unit 200 to generate a first instruction based on the first information and transmit it to the ignition unit 200. The first instruction is also divided into two parts. Before the single particle burns, the first instruction is to adjust the suspension unit 100 to send the specified single particle to the specified position, to energize the single particle to suspend it, and then to ignite the single particle through the ignition unit 200, while ensuring that other single particles to be tested are in a position where they will not be affected.

[0044] The installation unit 400 is used to provide a suitable environment for the experiment, including a combustion chamber 401 and a gas supply module 402. The combustion chamber 401 provides a closed space for installing other components while ensuring that the combustion will not affect the surroundings. The gas supply module 402 adjusts the gas and pressure in the combustion chamber 401 to the requirements of the experiment; the suspension unit 100 and the ignition unit 200 are installed in the combustion chamber 401.

[0045] The ignition unit 200 includes a resistance wire ignition module 202, which is arranged on the right side of the combustion chamber 401, and its thruster extends into the combustion chamber through the window on the right side. When in use, the principle of resistance wire ignition is that the resistance wire is energized to generate heat, and the heat is transferred to the particles by heat convection, thereby igniting. This process is slow compared to laser ignition. Therefore, the entire ignition process of the particles can be observed as the ambient temperature rises, and the ignition temperature of the particles and the data of their ignition delay time can be directly obtained.

[0046] Example 4, reference Figure 1 and Figure 2 , which is the fourth embodiment of the present invention, and this embodiment is based on the previous two embodiments.

[0047] The floating electrode 101 includes an upper metal plate 101a and a lower metal plate 101b, which are respectively connected to the voltage amplifier 102. The upper metal plate 101a is negatively charged and is a hemisphere with the spherical surface facing the lower metal plate 101b. The lower metal plate 101b is a concave surface with positive charge and is used to place single particles. The diameter of the lower metal plate 101b is larger than that of the upper metal plate 101a. The single particle is placed at the center of the concave surface of the lower metal plate 101b. In this way, the shape of the electric field is from the lower metal plate 101b to the upper metal plate 101a, and the electric field lines point more to the center of the upper metal plate 101a as they go up. This ensures that the electric field cross-section becomes smaller and smaller from bottom to top, further preventing the single particle from escaping from the electric field.

[0048] The monitoring module 301 includes a fiber optic spectrometer 301a, a high-speed camera 301b, a dual-colorimetric camera 301c, a temperature sensor 301d, and a pressure sensor 301e. The fiber optic spectrometer 301a can monitor light of different wavelengths generated during the combustion of a single particle. The high-speed camera 301b can record an optical image of the flame morphology of a single particle combustion. The dual-colorimetric camera 301c can measure the surface temperature of a single burning particle. The temperature sensor 301d and the pressure sensor 301e respectively record the temperature and pressure in the combustion chamber 401.

[0049] In more detail, the monitoring module 301 also includes a collection component 301f and a position detection component 301g. The collection component 301f collects data generated by the fiber optic spectrometer 301a, the high-speed camera 301b, the dual colorimetric camera 301c, the temperature sensor 301d, and the pressure sensor 301e and transmits it to the processing module 302;

[0050] The position detector 301g detects the three-dimensional space where the single particle is located. After the horizontal laser irradiates the suspended single particle, it is projected on the photosensitive surface of the position detector 301g and a shadow appears. The position of the shadow is converted into a voltage signal by the position detector 301g, representing the suspended position of the sample in the actual space. After the position voltage signal is transmitted to the processing module 302, the voltage when the sample moves to the predetermined suspended position is calculated by the PID algorithm, and it is amplified by the high-voltage amplifier 102 and loaded on the upper metal plate 101a.

[0051] In more detail, the gas supply module 402 includes a gas cylinder 402a, a flow regulating valve 402b and a mass flow meter 402c. The gas cylinder 402a is a gas storage unit that stores different types of gases. The flow regulating valve 402b is used to adjust the gas flow rate. The mass flow meter 402c is used to measure the mass flow rate of the fluid passing through the pipeline, that is, the mass of the fluid passing through the pipeline per unit time. When the flow regulating valve 402b and the mass flow meter 402c are used together, more accurate flow control and monitoring can be achieved. The gas cylinder 402a, the flow regulating valve 402b, the mass flow meter 402c, and the gas mixing device 402d are connected in sequence and flow into the combustion chamber 401 through the top of the combustion chamber 401.

[0052] The installation unit 400 further includes a wall window 403, which is arranged on the wall surface of the combustion chamber 401. The monitoring module 301 and the wall window 403 are directly opposite. The wall window 403 includes four windows, namely a data acquisition window 403a, a resistance wire window 403d, a laser ignition window 403c and a laser positioning window 403b. The data acquisition window 403a, the resistance wire window 403d and the laser ignition window 403c each occupy a surface of the combustion chamber 401, and the laser positioning window 403b points to the single particle placement position;

[0053] Processing module 302 The processing module includes a computer 302a, a synchronous trigger 302b, and a controller 302c. The computer 302a issues instructions and stores various collected data. The computer 302a can simultaneously start the fiber spectrometer 301a, the high-speed camera 301b, and the dual colorimetric camera 301c by controlling the synchronous trigger 302b. The controller 302c can control the stepper motor 103a to work according to the specified program; the synchronous trigger 302b is connected to the monitoring module 301 and the ignition unit 200.

[0054] The combustion chamber 401 includes a heating layer 401a and a pressure relief valve 401b. The heating layer 401a is vertically arranged on the rear wall of the combustion chamber 401 to increase the temperature in the combustion chamber 401. The pressure relief valve 401b is arranged on the top cover of the combustion chamber to balance the internal and external pressures of the combustion chamber 401 at the end of the experiment after combustion.

[0055] The suspension unit 100 further includes a rotating module 103, which is used to transport the single particle for the experiment to the experimental position, and is arranged at the bottom of the lower metal plate 101b, and includes a stepper motor 103a and a turntable 103b. The center of the bottom surface of the turntable 103b is fixedly connected to the top shaft of the stepper motor 103a. The top of the turntable 103b is evenly surrounded by a groove 103c, and the lower metal plate 101b and the groove 103c cooperate.

[0056] The suspension unit 100 further includes a placement module 104, which is disposed on one side of the rotation module 103 and is used to place a single particle. The placement module 104 includes a metal rod 104a and a transmission channel 104b. The metal rod 104a is used to energize the lower metal plate 101b. Each time the turntable 103b rotates, the tail end of the lower metal plate 101b is connected to the metal rod 104a to form an electric field.

[0057] When in use, the transmission channel 104b provides a designated moving direction for the early stage of single particle suspension. At the same time, after the combustion is completed, the particles may fall and be recovered to the lower metal plate to prevent them from falling and popping out, which is conducive to recovery. The metal rod 104a is at the bottom of the groove 103c, and the transmission channel 104b is at the top of the groove 103c.

[0058] Example 5, reference Figures 1 to 3 , which is the fifth embodiment of the present invention, and is based on the first embodiment.

[0059] When in use, the experimental steps are:

[0060] In the preparation stage, a single particle is placed at a designated location and the device is adjusted to make the internal environment meet the experimental requirements;

[0061] In the suspension stage, the suspension unit 100 is used to suspend the single particle to a specified position;

[0062] During the experimental phase, the ignition unit 200 is used to ignite a single particle, and various signals and parameters during the combustion process are recorded.

[0063] Specifically, in the preparation stage, before the test begins, a single particle for the experiment is placed in the center of the concave surface of the lower metal plate 101b, and the turntable on the stepper motor 103a evenly surrounds the concave hole where the lower metal plate 101b is placed. At the beginning, one of the concave holes is facing the upper metal plate 101a. After a single particle completes the ignition experiment, the stepper motor 103a works, rotates clockwise by a certain angle, and switches to the next concave hole, which is also facing the upper metal plate 101a; the cycle works until all samples are tested; at the same time, the combustion chamber 401 is heated and gas is supplied to the combustion chamber 401, so that the combustion chamber 401 reaches the temperature, atmosphere and pressure required for the test.

[0064] Specifically, in the suspension stage, after reaching the required environment for the experiment, the high-voltage amplifier 102 is turned on to make the lower metal plate 101b and the upper metal plate 101a carry positive charge and negative charge respectively, and at the same time, the single particle on the lower metal plate 101b is also positively charged; the electric field strength between the high-voltage electrostatic fields is adjusted by the high-voltage amplifier 102, and the position of the single particle is located by the monitoring module 301, and the first information is generated and transmitted to the processing module 302. The processing module 302 generates a first instruction according to the first information, and the processing module 302 adjusts the high-voltage amplifier 102 according to the height of the single particle, thereby changing the electric field between the lower metal plate 101b and the upper metal plate 101a, and ensuring that the single particle is suspended at a specified position according to negative feedback.

[0065] Specifically, in the experimental stage, the ignition unit 200 ignites a single particle, and the synchronous trigger 302b works at the same time, starting the monitoring module 301 to record various signals and parameters in the combustion process.

[0066] After the single particle is completely burned, the computer 302a is used to control the synchronous trigger device 302b to stop the fiber optic spectrometer 301a, the high-speed camera 301b and the dual colorimetric camera 301c. The computer 302a is used to control the stepper motor 103a to enter the next metal particle suspension combustion experiment. After the entire experiment is completed, the power supply and the fluidizing gas supply module are turned off and the pressure relief valve 401b is opened to relieve the pressure.

[0067] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A single particle suspension combustion test device, characterized in that: include, A suspension unit (100) comprises a suspension electrode (101) and a voltage amplifier (102), wherein the voltage amplifier (102) is connected to the suspension electrode (101), and the suspension unit (100) is used to allow a single particle to overcome gravity and be suspended to a combustion zone; An ignition unit (200) is arranged on one side of the suspension unit (100), and the ignition unit (200) is used to ignite the suspended single particle.

2. The single particle suspension combustion test device according to claim 1, characterized in that: Also includes, The control unit (300) comprises a monitoring module (301) and a processing module (302); the monitoring module (301) is connected to the suspension unit (100), generates first information, and transmits it to the processing module (302); the processing module (302) is connected to the ignition unit (200), generates a first instruction according to the first information, and transmits it to the ignition unit (200); The installation unit (400) comprises a combustion chamber (401) and an air supply module (402), wherein the suspension unit (100) and the ignition unit (200) are installed in the combustion chamber (401), and the installation unit (400) uses the air supply module (402) to change the environment of the combustion chamber (401) to meet the experimental requirements.

3. The single particle suspension combustion test device according to claim 2, characterized in that: The ignition unit (200) comprises a laser ignition module (201) which is arranged on the wall surface of the combustion chamber (401).

4. The single particle suspension combustion test device according to claim 2, characterized in that: The ignition unit (200) comprises a resistance wire ignition module (202) which is arranged on the wall surface of the combustion chamber (401).

5. The single particle suspension combustion test device according to claim 3 or 4, characterized in that: The suspension electrode (101) comprises an upper metal plate (101a) and a lower metal plate (101b), which are respectively connected to a voltage amplifier (102); the upper metal plate (101a) is a hemisphere, with the spherical surface facing the lower metal plate (101b); the lower metal plate (101b) is a concave surface, and a single particle is placed at the center of the concave surface of the lower metal plate (101b). The monitoring module (301) includes a fiber optic spectrometer (301a), a high-speed camera (301b), a dual colorimetric camera (301c), a temperature sensor (301d), and a pressure sensor (301e); The installation unit (400) further comprises a wall window (403) disposed on the wall surface of the combustion chamber (401), and the monitoring module (301) and the wall window (403) are directly opposite to each other; The processing module (302) includes a computer (302a), a synchronous trigger (302b), and a controller (302c). The computer (302a), the synchronous trigger (302b), and the controller (302c) are connected to each other; the synchronous trigger (302b) is connected to the monitoring module (301) and the ignition unit (200).

6. The single particle suspension combustion test device according to claim 5, characterized in that: The combustion chamber (401) comprises a heating layer (401a) and a pressure relief valve (401b), wherein the heating layer (401a) is vertically arranged on the rear wall surface of the combustion chamber, and the pressure relief valve (401b) is arranged on the top cover of the combustion chamber; The suspension unit (100) further comprises a rotating module (103), which is arranged at the bottom of the lower metal plate (101b), and comprises a stepping motor (103a) and a rotating disk (103b), wherein the center of the bottom surface of the rotating disk (103b) is fixedly connected to the rotating shaft at the top of the stepping motor (103a), and grooves (103c) are evenly arranged around the top of the rotating disk (103b), and the lower metal plate (101b) and the grooves (103c) are matched; The suspension unit (100) further comprises a placement module (104), which is arranged on one side of the rotation module (103) and is used for placing a single particle.

7. A single particle suspension combustion test method, characterized in that: The single particle suspension combustion test device comprises any one of claims 1 to 6; and the experimental steps are: In the preparation stage, a single particle is placed at a designated location and the device is adjusted to make the internal environment meet the experimental requirements; In the suspension stage, a suspension unit (100) is used to suspend a single particle to a designated position; In the experimental stage, the ignition unit (200) is used to complete the ignition of a single particle, and various signals and parameters during the combustion process are recorded.

8. The single particle suspension combustion test method according to claim 7, characterized in that: The preparation stage includes, before the test begins, placing a single particle for the test into the center of the concave surface of the lower metal plate (101b), heating the combustion chamber (401), and supplying gas to the combustion chamber (401) so that the combustion chamber (401) reaches the temperature, atmosphere and pressure required for the test.

9. The single particle suspension combustion test method according to claim 8, characterized in that: The suspension stage includes: after reaching the environment required for the experiment, turning on the high-voltage amplifier (102) so that the lower metal plate (101b) and the upper metal plate (101a) are respectively charged with positive charge and negative charge, and the single particle on the lower metal plate (101b) is also charged with positive charge; the electric field strength between the high-voltage electrostatic fields is adjusted by the high-voltage amplifier (102), the position of the single particle is located by using the monitoring module (301), the first information is generated and transmitted to the processing module (302), and the processing module (302) generates a first instruction according to the first information.

10. The single particle suspension combustion test method according to claim 9, characterized in that: The experimental stage includes: the ignition unit (200) ignites a single particle, and the synchronous trigger (302b) works, starting the monitoring module (301) and recording various signals and parameters during the combustion process.

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