Reaction platform

Abstract

The utility model provides a reaction platform, this reaction platform is used for carrying out the combustion or gasification reaction of particle, this reaction platform includes: reaction chamber cavity, reaction chamber cavity is the closed chamber for accommodating particle and carrying out the combustion or gasification reaction, ignition device, ignition device is used for igniting the particle in reaction chamber cavity, ultrasonic wave suspension device, ultrasonic wave suspension device includes the generating part and the reflection part, wherein, the generating part is opposite with the reflection part and each other at least partly extends to the inside of reaction chamber cavity, the one end on the generating part inside reaction chamber cavity is used for producing ultrasonic wave, the one end on the reflection part inside reaction chamber cavity is provided with the reflecting surface towards the generating part, the reflecting surface is the face that is recessed towards the generating part, and the reflecting surface carries out the reflection to the ultrasonic wave received on it. Avoided the physical contact between reaction platform and particle, facilitated the reduction and observed the reaction state of particle in the actual application process and realized the safe use.

Description

Technical Field

[0001] This utility model relates to the field of particle combustion or gasification reaction technology, and in particular to a reaction platform. Background Technology

[0002] Particle-shaped fuels are important raw materials for industrial production. The aforementioned fuels are mostly used in boilers or gasifiers to react under high temperature and pressure, thereby generating electricity or converting into syngas, which is then used in chemical production or the synthesis of liquid fuels.

[0003] Among these, achieving efficient and clean utilization of pellet fuels, such as biomass pellets, coal-based pellets, or solid waste-derived fuels, is a crucial research direction in the energy and environmental protection fields. Specifically, to achieve this efficient and clean utilization, a precise analysis of the combustion, gasification, or pyrolysis reaction mechanisms of pellets is essential for optimizing fuel properties such as fuel design, improving conversion efficiency, and reducing pollutant emissions. Therefore, those skilled in the art need to utilize specific reaction platforms to conduct experiments and test the combustion, gasification, or pyrolysis reactions of pellets, collect data during the experiments, and then analyze the collected data.

[0004] In the aforementioned experiments, the traditional reaction platforms used for particle testing often involve physical contact with the particles. In this situation, the physical contact can easily interfere with the initial state of the particles, and it is also difficult to achieve instantaneous and uniform ignition. Furthermore, limitations exist in the precision of reaction atmosphere control and the limited means of process observation. For example, data from sensors located outside the reaction platform are often used to indirectly infer the specific reaction state, making it difficult to simultaneously acquire key dynamic data such as the microscopic morphological evolution of particles and the propagation of the combustion interface under real reaction conditions. On the other hand, existing reaction platforms often have slow heating rates, resulting in significant differences between experimental and actual application heating rates, failing to accurately reproduce the physicochemical evolution of particles in real-world applications. Moreover, traditional reaction platforms are often made of ordinary heat-resistant steel, which, besides being prone to heat transfer to the outside, is susceptible to structural failure under high-temperature corrosive atmospheres or extreme thermal shock conditions, posing experimental safety risks.

[0005] Therefore, there is a market demand for reaction platforms that can avoid physical contact between the reaction platform and the particles, facilitate the reproduction and observation of the reaction state of the particles in actual applications, and are safe to use. Utility Model Content

[0006] The technical problem to be solved by this invention is to provide a reaction platform to avoid physical contact between the reaction platform and the particles, to facilitate the reproduction and observation of the reaction state of the particles in actual application, and to ensure safe use.

[0007] The present invention solves the above-mentioned technical problems through the following technical solution:

[0008] A reaction platform for performing a combustion or gasification reaction of particles, the reaction platform comprising:

[0009] A reaction chamber is a sealed chamber used to contain particles and carry out combustion or gasification reactions.

[0010] Ignition device, used to ignite particles in the reaction chamber;

[0011] An ultrasonic levitation device, comprising a generating part and a reflecting part;

[0012] The generating part and the reflecting part are arranged opposite to each other and each extends at least partially into the interior of the reaction chamber. One end of the generating part located inside the reaction chamber is used to generate ultrasonic waves. One end of the reflecting part located inside the reaction chamber is provided with a reflecting surface facing the generating part. The reflecting surface is a surface that is concave towards the generating part and reflects the ultrasonic waves received thereon.

[0013] In this design, the reaction chamber is used to contain particles during the experiment. The reaction chamber is a closed chamber, which helps to isolate the heat generated during the combustion reaction while facilitating the elimination of interference, thus contributing to safety.

[0014] In this process, particles are suspended in the reaction chamber by an ultrasonic levitation device. Specifically, the generating part and the reflecting part of the ultrasonic levitation device are arranged opposite each other and each extends at least partially into the interior of the reaction chamber. One end of the generating part located inside the reaction chamber is used to generate ultrasonic waves, and the other end of the reflecting part located inside the reaction chamber is provided with a reflecting surface facing the generating part. Thus, the ultrasonic waves generated by the generating part are emitted onto the reflecting surface and reflected by the reflecting surface. In this way, the generated ultrasonic waves and the reflected ultrasonic waves are coupled in the reaction chamber and an energy balance is achieved. That is, the generated ultrasonic waves give the particles a force to move towards the reflecting part, and the ultrasonic waves reflected from the reflecting surface give the particles a force to move towards the generating part. The aforementioned two forces are balanced, thus suspending the particles in the reaction chamber.

[0015] Under the aforementioned setup, whether the particles are ignited by an ignition device or during the actual reaction process, the particles never come into physical contact with the reaction platform. This helps to avoid interference from physical contact with the particles, and thus facilitates the use of the reaction platform to reconstruct and observe the reaction state of the particles during actual application.

[0016] Preferably, the reaction chamber is provided with an air inlet for introducing a reaction atmosphere, which is used to create a specified gaseous environment in the reaction chamber.

[0017] In this design, an air inlet is provided on the reaction chamber for introducing the reaction atmosphere. This allows the reaction platform to simulate a specific gaseous environment for particle combustion or gasification reactions, tailored to specific needs. This facilitates the reproduction and observation of the reaction state of particles in a given gaseous environment. Furthermore, since the reaction chamber is a sealed chamber, it prevents the leakage of high-temperature corrosive gases, thus avoiding any impact on experimental safety.

[0018] Preferably, the reaction platform further includes a heating body and a heating controller. The heating body is disposed on the inner wall of the reaction chamber, and the heating controller is electrically connected to the heating body.

[0019] The heating controller is used to control the switching between the working state and the non-working state of the heating body. When the heating body is in the working state, the heating body is powered on and uses the electrothermal effect to heat the reaction chamber. When the heating body is in the non-working state, the heating body is de-powered.

[0020] In this scheme, by using a heating controller to control the switching between working and non-working states of the heating body, the reaction chamber and its gas environment can be maintained at a specified temperature. Therefore, the reaction platform in this scheme can simulate the gas environment for particle combustion or gasification reactions at a specific temperature according to specific needs, further facilitating the reproduction and observation of the reaction state of particles in a specific gas environment at a specific temperature in actual applications.

[0021] On the other hand, by using a heating controller and a heating body to maintain the reaction chamber at a specified temperature, it also helps to prevent the reaction atmosphere from undergoing qualitative changes such as condensation due to temperature reduction, thus ensuring the effectiveness of the reaction atmosphere during the experiment.

[0022] Preferably, the reaction platform further includes a steam generator and a gas source. The steam generator has an inlet and an outlet, and is used to vaporize the fluid entering the inlet and discharge it from the outlet. The outlet is connected in sequence to the gas source and the gas inlet opening.

[0023] In this design, the steam generator provides a specified humidity environment for the interior of the reaction chamber, facilitating the reproduction and observation of the reaction state of the particles during actual application under specific atmospheric and humidity conditions. Furthermore, the gas introduced from the gas source propels the reaction atmosphere and the steam generated by the steam generator towards the inlet opening, thereby improving the efficiency of introducing the reaction atmosphere and steam into the reaction chamber.

[0024] Preferably, a reaction chamber shell is provided outside the reaction chamber cavity, the generating part is fixedly connected to the top of the reaction chamber shell, and the reflecting part is fixedly connected to the bottom of the reaction chamber shell;

[0025] The reaction chamber shell has a first window and a second window in the middle section between the top and bottom. The first window and the second window are arranged opposite to each other, and the first window and the second window allow light to be transmitted between the inside of the reaction chamber and the outside of the reaction chamber.

[0026] In this design, the generating part is fixedly connected to the top of the reaction chamber shell, and the reflecting part is fixedly connected to the bottom of the reaction chamber shell, thus providing a convenient installation method. A first window and a second window, positioned opposite each other, are provided in the middle section between the top and bottom of the reaction chamber shell. These windows are used to observe the combustion or gasification reaction of the particles during the experiment.

[0027] Preferably, the ignition device is located outside the reaction chamber cavity and the outer shell of the reaction chamber. The ignition device is a laser ignition device, which is configured to emit a laser beam toward the first window. The laser beam passes through the first window, the reaction chamber cavity, and the second window in sequence.

[0028] In this scheme, the ignition device is a laser ignition device. The laser beam generated by the laser ignition device enters through the first window and exits through the second window after being focused and igniting the particles in the reaction chamber. This achieves non-contact ignition of the particles, thereby preventing potential interference with the initial state of the particles during the ignition process and facilitating instantaneous uniform ignition.

[0029] Preferably, the generating section extends at least partially into the interior of the reaction chamber in a vertical direction, and a first cooling flow path is provided on the generating section, which extends along the height direction of the generating section.

[0030] In this design, the first cooling flow path extends along the height of the generator section to provide cooling for the generator section, which helps to prevent overheating of the generator section and avoids structural failure that may occur under overheating conditions, thus optimizing safety in use.

[0031] Preferably, the reaction chamber is provided with an air inlet for introducing a reaction atmosphere, which is used to create an experimental environment in the reaction chamber for a specified combination to carry out the combustion reaction.

[0032] The reaction platform also includes a steam generator, which has an inlet and an outlet, and is used to vaporize the fluid introduced into the inlet and discharge it from the outlet.

[0033] A second cooling flow path is provided on the first window, which extends around the outer contour of the first window, and the fluid outlet of the second cooling flow path is connected to the inlet of the device.

[0034] In this design, the steam generator provides a specified humidity environment for the interior of the reaction chamber, facilitating the reproduction and observation of the reaction state of the particles during actual application under specific atmospheric and humidity conditions. Furthermore, the gas introduced from the gas source propels the reaction atmosphere and the steam generated by the steam generator towards the inlet opening, thereby improving the efficiency of introducing the reaction atmosphere and steam into the reaction chamber.

[0035] In addition, a second cooling flow path is provided on the first window, and the fluid outlet of the second cooling flow path is connected to the inlet of the device. In other words, after the second cooling flow path provides a cooling effect for the first window, the heated fluid is further fed into the steam generator, thereby realizing further recycling of the fluid and saving the heating energy consumption of the steam generator when producing steam.

[0036] Preferably, the ultrasonic levitation device further includes:

[0037] An air-cooling section is located at one end of the generator section outside the reaction chamber. The air-cooling section is used to introduce air and cool the generator section.

[0038] An ultrasonic controller is electrically connected to one end of the generator unit that is equipped with an air-cooling unit. The ultrasonic controller is used to control the generator unit to switch between working and non-working states. When the generator unit is in the working state, it operates and generates ultrasonic waves; when the generator unit is in the non-working state, it stops generating ultrasonic waves.

[0039] In this solution, the ultrasonic levitation device also includes an air-cooling unit, which is located at one end of the generating unit outside the reaction chamber. This air-cooling unit provides cooling protection for the electrical connection between the ultrasonic controller and the generating unit after the ultrasonic controller controls the generating unit to enter the working state, thus avoiding structural failures such as electrical connection interruption that may occur under overheating conditions, and further ensuring safe use.

[0040] An experimental method, applied to any of the above reaction platforms, comprising the following steps:

[0041] S1: Heat the reaction chamber to maintain it at the specified temperature;

[0042] S2: The generating part generates ultrasonic waves of a specified frequency, and the reflecting surface reflects the ultrasonic waves received on it.

[0043] S3: Place the particles to be combusted into the reaction chamber. The ultrasonic waves generated by the generator and the ultrasonic waves reflected on the reflective surface cause the particles to enter a suspended state between the generator and the reflective surface.

[0044] S4: Introduce a reaction atmosphere into the reaction chamber.

[0045] S5: Activate the ignition device and ignite the pellets;

[0046] S6: Turn off the ignition device and end the experiment.

[0047] In this scheme, by adopting the above experimental methods and using any of the above reaction platforms, physical contact between the reaction platform and the particles can be avoided, the reaction state of the particles in the actual application process can be easily restored and observed, and safe use can be achieved.

[0048] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of this utility model.

[0049] The positive and progressive effects of this utility model are as follows: the reaction platform in this utility model avoids physical contact between the reaction platform and the particles, facilitates the reproduction and observation of the reaction state of the particles in actual application process, and achieves safe use. Attached Figure Description

[0050] Figure 1 This is a schematic diagram of the structure of a reaction platform according to an embodiment of the present invention.

[0051] Explanation of reference numerals in the attached figures:

[0052] Reaction Platform 100

[0053] Ultrasonic levitation device 200

[0054] Air-cooled section 1

[0055] Production Section 2

[0056] Flange structure 3

[0057] Reflector 4

[0058] Reflective surface 41

[0059] First Window 5

[0060] Second Window 6

[0061] Reaction chamber shell 7

[0062] Reaction chamber 8

[0063] Air intake opening 81

[0064] Conductive wire 9

[0065] Heating controller 10

[0066] Base 11

[0067] Inlet opening pipe 12

[0068] Lens 13

[0069] Ignition device 14

[0070] Laser ignition port 15

[0071] Third Window 16

[0072] Ultrasonic Controller 18

[0073] First water-cooled inlet 19

[0074] First water-cooled outlet 20

[0075] First water-cooling pipe 21

[0076] Second water-cooling pipe 22

[0077] Second water-cooled inlet 23

[0078] Second water-cooled outlet 24

[0079] Steam generator 25

[0080] Device entrance 251

[0081] Unit outlet 252

[0082] Gas source 26 Detailed Implementation

[0083] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the embodiments.

[0084] like Figure 1 As shown, a reaction platform 100 is used for performing combustion or gasification reactions of particles. The reaction platform 100 includes:

[0085] The reaction chamber 8 is a sealed chamber used to contain particles and carry out combustion or gasification reactions. The reaction chamber 8 is placed on a designated plane by a base 11, which is a three-dimensional adjustment platform, so that the imaging focal plane of the suspended particles can be finely adjusted directly by the base 11.

[0086] Ignition device 14 is used to ignite the particles in the reaction chamber 8;

[0087] An ultrasonic levitation device 200 includes a generating part 2 and a reflecting part 4.

[0088] The generating part 2 and the reflecting part 4 are arranged opposite to each other and each extends partially into the reaction chamber cavity 8. The generating part 2 is specifically an ultrasonic generating tube, which is made of PZT wafer and its operating frequency is adjustable between 20kHz and 100kHz. One end of the generating part 2 located inside the reaction chamber cavity 8 is used to generate ultrasonic waves. The reflecting part 4 located inside the reaction chamber cavity 8 is provided with a reflecting surface 41 facing the generating part 2. The reflecting surface 41 is a corrugated ultrasonic reflecting groove, which reflects the ultrasonic waves received on it.

[0089] The axial distance between the ultrasonic generating tube and the ultrasonic reflecting groove is adjustable with an adjustment accuracy of 0.01mm, thereby meeting the suspension requirements of particles of different sizes. The standing wave field between the ultrasonic generating tube and the ultrasonic reflecting groove will make the particles stably suspend at the geometric center of the reaction chamber 8.

[0090] In practice, the reaction chamber 8 is used to contain particles during the experiment. The reaction chamber 8 is a closed chamber, which helps to isolate the heat generated during the combustion reaction while facilitating the elimination of interference, thus contributing to safety in use.

[0091] In this process, the particles are suspended in the reaction chamber cavity 8 by the ultrasonic levitation device 200. Specifically, the generating part 2 and the reflecting part 4 of the ultrasonic levitation device 200 are arranged opposite to each other and each extends partially into the interior of the reaction chamber cavity 8. One end of the generating part 2 located inside the reaction chamber cavity 8 is used to generate ultrasonic waves. One end of the reflecting part 4 located inside the reaction chamber cavity 8 is provided with a reflecting surface 41 facing the generating part 2. Thus, the ultrasonic waves generated by the generating part 2 are emitted onto the reflecting surface 41 and reflected by the reflecting surface 41. In this way, the generated ultrasonic waves and the reflected ultrasonic waves are coupled in the reaction chamber cavity 8 and an energy balance is achieved. That is, the generated ultrasonic waves give the particles a force to move towards the reflecting part 4, and the ultrasonic waves reflected from the reflecting surface 41 give the particles a force to move towards the generating part 2. The aforementioned two forces are balanced, thus suspending the particles in the reaction chamber cavity 8.

[0092] Under the aforementioned configuration, whether the particles are ignited by the ignition device 14 or during the actual reaction process, the particles never come into physical contact with the reaction platform 100. This helps to avoid interference from physical contact with the particles, and thus facilitates the use of the reaction platform 100 to reconstruct and observe the reaction state of the particles in the gasifier or boiler during the actual application process.

[0093] like Figure 1 As shown, an air inlet 81 is provided on the reaction chamber 8. The air inlet 81 is used to introduce the reaction atmosphere, which is used to form a specified gaseous environment in the reaction chamber 8.

[0094] In this embodiment, the air inlet 81 is connected to the air inlet 81 pipe 12, and the air inlet 81 pipe 12 is further connected to other external air supply devices. A heat tracing cable with a temperature of 110°C is also provided on the air inlet 81 pipe 12.

[0095] In practical implementation, the reaction chamber 8 is provided with an air inlet 81 for introducing the reaction atmosphere. Thus, the reaction platform 100 in this design can simulate a specific gaseous environment for the combustion or gasification reaction of particles according to specific needs, facilitating the reproduction and observation of the reaction state of the particles in the actual application process within a specific gaseous environment. Furthermore, since the reaction chamber 8 is a sealed chamber, it also prevents the leakage of high-temperature corrosive gas atmosphere from the reaction chamber 8, avoiding the aforementioned gas atmosphere's impact on experimental safety.

[0096] like Figure 1 As shown, the reaction platform 100 also includes a heating body (not shown in the figure) and a heating controller 10. The heating body is disposed on the inner wall of the reaction chamber cavity 8, and the heating controller 10 is electrically connected to the heating body via a conductive wire 9.

[0097] The heating controller 10 is used to control the switching between the working state and the non-working state of the heating body. When the heating body is in the working state, the heating body is powered on and uses the electrothermal effect to heat the reaction chamber cavity 8; when the heating body is in the non-working state, the heating body is de-powered.

[0098] In this embodiment, the heating element is a ring-shaped heating element, more specifically, a ceramic-encapsulated resistance heater. Furthermore, this ring-shaped heating element is distributed throughout the inner wall of the reaction chamber 8, thereby achieving efficient and uniform heating of the reaction chamber 8.

[0099] In addition, the heating controller 10 in this embodiment is a PID constant temperature controller, which is set to a constant temperature of ±2°C of the water vapor condensation temperature corresponding to the experimental pressure, and its temperature control accuracy is within ±1°C, thereby ensuring the temperature control effect and ensuring that the water vapor in the reaction atmosphere is always kept in a gaseous state.

[0100] In practical implementation, by using the heating controller 10 to control the switching between the working and non-working states of the heating body, the reaction chamber 8 and the gas environment therein can be maintained at a specified temperature. Therefore, the reaction platform 100 in this solution can simulate the gas environment for particle combustion or gasification reactions at a specific temperature according to specific needs, further facilitating the reproduction and observation of the reaction state of the actual application process of particles in a specific gas environment at a specific temperature.

[0101] On the other hand, by using the heating controller 10 and the heating body to maintain the reaction chamber 8 at a specified temperature, it also helps to prevent the reaction atmosphere from undergoing qualitative changes such as condensation due to temperature reduction, thus ensuring the effectiveness of the reaction atmosphere during the experiment.

[0102] As an alternative implementation, those skilled in the art should also be able to conceive of using a fluid conduit to replace the aforementioned annular heating element. Specifically, those skilled in the art can introduce a high-temperature fluid into the fluid conduit, thereby utilizing the heat conduction and heat radiation of the fluid conduit itself to achieve a heating function. This fluid conduit can also be controlled by the heating controller 10, thereby introducing the high-temperature fluid in the working state and interrupting the introduction of the high-temperature fluid in the non-working state. This embodiment does not limit this.

[0103] like Figure 1 As shown, the reaction platform 100 also includes a steam generator 25 and a gas source 26. The steam generator 25 adopts a two-stage preheating design. The first stage of preheating raises the temperature of the fluid to 80°C, and the second stage of preheating raises the temperature of the fluid to the vaporization zone temperature of 130°C ± 2°C, wherein the steam saturation is 95% or higher.

[0104] The steam generator 25 has an inlet 251 and an outlet 252. The steam generator 25 vaporizes the fluid entering the inlet 251 and discharges it from the outlet 252. The outlet 252 is connected in sequence to a gas source 26 and an air inlet 81. In a specific implementation, the steam generator 25 provides a specified humidity environment for the interior of the reaction chamber 8, facilitating the reproduction and observation of the reaction state of the particles during actual application under a specific humidity environment. Furthermore, the gas introduced at the gas source 26 can drive the reaction atmosphere and the steam generated at the steam generator 25 towards the air inlet 81, thereby improving the efficiency of introducing the reaction atmosphere and steam into the reaction chamber 8.

[0105] Furthermore, in this embodiment, the gas source 26 integrates five independent high-pressure gas cylinders, containing oxygen, carbon dioxide, nitrogen, argon, and hydrogen, respectively. These five independent high-pressure gas cylinders are connected and mixed in specified proportions using a mass flow controller. During the connection and mixing process, a heat-tracing and insulation pipeline is also provided to maintain the gas temperature. However, those skilled in the art will recognize that other gases can be introduced to meet the simulation requirements of different gas environments; this embodiment does not limit this.

[0106] like Figure 1 As shown, a reaction chamber shell 7 is provided outside the reaction chamber cavity 8. The reaction chamber shell 7 is made of high temperature resistant ceramic composite material. The generating part 2 is fixedly connected to the top of the reaction chamber shell 7, and the reflecting part 4 is fixedly connected to the bottom of the reaction chamber shell 7.

[0107] The outer shell 7 of the reaction chamber has a first window 5 and a second window 6 in the middle section between the top and the bottom. The first window 5 and the second window 6 are arranged opposite to each other, and the first window 5 and the second window 6 allow light to be transmitted between the inside of the reaction chamber cavity 8 and the outside of the reaction chamber cavity 8.

[0108] In this embodiment, the fixed connection between the generating part 2 and the reaction chamber shell 7 is achieved by a flange structure 3, which is directly integrated into the top of the reaction chamber shell 7. This enables the generating part 2 to be easily disassembled relative to the reaction chamber shell 7 and provides a good sealing effect.

[0109] Furthermore, those skilled in the art should also realize that multiple layers of graphite gaskets can be installed at various connection points on the flange structure 3, and the preload of each bolt on the flange structure 3 can be controlled and adjusted using a torque wrench, thereby ensuring airtightness under high-temperature conditions. In specific implementation, the generating part 2 is fixedly connected to the top of the reaction chamber shell 7, and the reflecting part 4 is fixedly connected to the bottom of the reaction chamber shell 7, thus providing a convenient configuration. A first window 5 and a second window 6, arranged opposite each other, are provided in the middle section between the top and bottom of the reaction chamber shell 7. The first window 5 and the second window 6 are used to observe the combustion or gasification reaction of the particles during the experiment.

[0110] In addition to the aforementioned first window 5 and second window 6, a third window 16 and a fourth window (not shown in the figure) are provided in the middle section between the top and bottom of the reaction chamber shell 7. The third window 16 and the fourth window are also arranged opposite each other, and the four windows are symmetrically distributed along the central axis of the reaction platform 100. With the aforementioned arrangement, those skilled in the art can assign different uses to the windows. For example, the first window 5 and the second window 6 can be used as optical paths for laser ignition of particles, while the third window 16 and the fourth window can be used for experimental observation and recording. Furthermore, according to actual needs, those skilled in the art should also be able to conceive of setting more than four windows, such as additional fifth and sixth windows, and assign specific uses to the newly added windows. This embodiment does not limit this.

[0111] Furthermore, in this embodiment, the first window 5, the second window 6, the third window 16 and the fourth window are each provided with a lens 13. Each window is connected to the outer shell 7 of the reaction chamber by four bolts and a corresponding receiving groove for the lens 13. The connection of each window is provided with a sealing gasket, such as a fluororubber sealing gasket, and each window is provided with a quick-release buckle structure for easy replacement of the lens 13.

[0112] The lenses 13 are all made of zinc selenide or optical glass coated with a carbon dioxide laser antireflective film, thereby enhancing the durability and heat resistance of the lenses 13 when exposed to laser beams. Those skilled in the art will also recognize that when the corresponding window is not used as an optical path for the laser beam, other lower-cost materials, such as ordinary silicon dioxide, can be used. This embodiment does not limit this.

[0113] like Figure 1 As shown, the ignition device 14 is located outside the reaction chamber cavity 8 and the reaction chamber shell 7. The ignition device 14 is a laser ignition device, which is configured to emit a laser beam toward the first window 5 through the laser ignition port 15. The laser beam passes through the first window 5, the reaction chamber cavity 8 and the second window 6 in sequence.

[0114] Specifically, the optical ignition device is a carbon dioxide laser that generates a carbon dioxide laser beam. The output wavelength of the carbon dioxide laser is 10.6 μm, which enables the particles to heat up rapidly when focused. Furthermore, the diameter of the focused spot of the laser beam can be adjusted between 100 and 500 μm using a collimating lens group equipped with electric adjustment, thereby precisely matching the ignition requirements of particles of different sizes.

[0115] In specific implementation, the ignition device 14 is a laser ignition device. The laser beam generated by the laser ignition device enters through the first window 5 and exits through the second window 6 after focusing and igniting the particles in the reaction chamber 8. This achieves non-contact ignition of the particles, thereby preventing potential interference with the initial state of the particles during the ignition process and facilitating instantaneous uniform ignition.

[0116] like Figure 1 As shown, the generating section 2 extends vertically into the interior of the reaction chamber 8. A first cooling flow path is provided on the generating section 2, which extends along the height direction of the generating section 2.

[0117] In this embodiment, the first cooling flow path is a first water-cooling pipe 21, which has a first water-cooling inlet 19 and a first water-cooling outlet 20.

[0118] In practical implementation, the first cooling flow path extends along the height direction of the generating section 2, thereby providing cooling for the generating section 2, which helps to prevent the generating section 2 from overheating, avoids structural failure that may occur under overheating conditions, and optimizes the safety of use.

[0119] As an alternative implementation, compared to the arrangement in this embodiment where the first cooling flow path extends along the height direction of the generating section 2, those skilled in the art should also be able to conceive of adjusting the specific extension method of the first cooling flow path. For example, the first cooling flow path can be made to extend spirally around the generating section 2 along the height direction of the generating section 2, that is, arranged in an S-shaped meandering manner, thereby further optimizing the cooling effect and maintaining the surface temperature of the cooled area at 50°C or below. This embodiment does not limit this.

[0120] like Figure 1 As shown, an air inlet 81 is provided on the reaction chamber 8. The air inlet 81 is used to introduce a reaction atmosphere, which is used to form a specific combination of experimental environment for combustion reaction in the reaction chamber 8.

[0121] The reaction platform 100 also includes a steam generator 25, which has a device inlet 251 and a device outlet 252, and the steam generator 25 is used to vaporize the fluid introduced into the device inlet 251 and discharge it from the device outlet 252.

[0122] A second cooling flow path is provided on the first window 5. The second cooling flow path extends around the outer contour of the first window 5, and the fluid outlet of the second cooling flow path is connected to the device inlet 251.

[0123] In this embodiment, the second cooling flow path is a second water-cooling pipe 22, which has a second water-cooling inlet 23 and a second water-cooling outlet 24.

[0124] In practical implementation, the steam generator 25 is used to provide a specified humidity environment for the interior of the reaction chamber 8, which facilitates the reproduction and observation of the reaction state of the particles in the actual application process under a specific atmospheric and humidity environment. In addition, the gas introduced at the gas source 26 can drive the reaction atmosphere and the steam generated at the steam generator 25 to the air inlet 81, thereby improving the efficiency of introducing the reaction atmosphere and steam into the reaction chamber 8.

[0125] In addition, a second cooling flow path is provided on the first window 5. The fluid outlet of the second cooling flow path is connected to the device inlet 251. In other words, after the second cooling flow path provides a cooling effect for the first window 5, the heated fluid is further fed into the steam generator 25, thereby realizing further recycling of the fluid and saving the heating energy consumption of the steam generator 25 when generating steam.

[0126] Similarly, those skilled in the art should also be able to conceive of arranging the second cooling flow path in an S-shaped meandering manner, thereby further optimizing the cooling effect and maintaining the surface temperature of the cooled area below 50°C. This embodiment does not limit this.

[0127] As an alternative implementation, the first water-cooling pipe 21 and the second water-cooling pipe 22 can also be connected in series to form a dual-circulation water-cooling system. That is, the fluid that flows through the first water-cooling pipe 21 and cools the generator 2 is further passed to the second water-cooling pipe 22 and used to cool the window, or the fluid that flows through the second water-cooling pipe 22 and cools the window is further passed to the first water-cooling pipe 21 and used to cool the generator 2, thereby further improving the utilization efficiency of the fluid used for cooling. This embodiment does not limit this.

[0128] like Figure 1 As shown, the ultrasonic levitation device 200 also includes:

[0129] Air cooling unit 1 is provided at one end of the generating unit 2 located outside the reaction chamber cavity 8. Air cooling unit 1 is used to introduce air and cool the generating unit 2.

[0130] An ultrasonic controller 18 is electrically connected to one end of the generator 2 where the air-cooling unit 1 is located. The ultrasonic controller 18 is used to control the generator 2 to switch between working and non-working states. When the generator 2 is in the working state, the generator 2 operates and generates ultrasonic waves; when the generator 2 is in the non-working state, the generator 2 stops generating ultrasonic waves.

[0131] In specific implementation, the ultrasonic levitation device 200 also includes an air cooling unit 1, which is located at one end of the generating unit 2 outside the reaction chamber cavity 8. After the ultrasonic controller 18 controls the generating unit 2 to enter the working state, it provides cooling protection for the electrical connection between the ultrasonic controller 18 and the generating unit 2, avoiding structural failures such as electrical connection interruption that may occur under overheating conditions, and further ensuring safe use.

[0132] In this embodiment, the ultrasonic controller 18 directly integrates an adaptive frequency tracking algorithm. When the particle drifts in position, that is, when it deviates from the geometric center of the reaction chamber 8, the frequency can be readjusted within 50ms and the particle can be forced back to the geometric center of the reaction chamber 8.

[0133] Furthermore, the air-cooling unit 1 used in this embodiment is specifically a forced air-cooling jacket, which is fitted onto the generator unit 2 at one end located outside the reaction chamber cavity 8, and cools the generator unit 2 by introducing air. However, those skilled in the art should also be able to conceive of using other types of air-cooling units, such as cold air generating devices, to cool the generator unit 2, and this embodiment does not limit this to such methods.

[0134] This embodiment also provides an experimental method, which is applied to the reaction platform 100 of any of the above-mentioned embodiments, and the experimental method includes the following steps:

[0135] S1: Heat the reaction chamber 8 to maintain the reaction chamber 8 at the specified temperature;

[0136] S2: The generating unit 2 generates ultrasonic waves of a specified frequency, and the reflecting surface 41 reflects the ultrasonic waves received thereon.

[0137] S3: The particles to be combusted are placed in the reaction chamber 8. The ultrasonic waves generated by the generator 2 and the ultrasonic waves reflected on the reflective surface 41 cause the particles to enter a suspended state between the generator 2 and the reflective surface 41.

[0138] S4: Introduce a reaction atmosphere into the reaction chamber 8;

[0139] S5: Activate the ignition device 14 and ignite the particles;

[0140] S6: Turn off the ignition device 14 and end the experiment.

[0141] In practical implementation, by adopting the above experimental methods and using any of the above reaction platforms 100, physical contact between the reaction platform 100 and the particles can be avoided, making it easier to restore and observe the reaction state of the particles in the actual application process and ensuring safe use.

[0142] The following is a preferred example. During the experiment, the heating element and heating controller 10 are first activated. After the reaction chamber 8 is heated to a stable, specified temperature, the ultrasonic levitation device 200 is activated, and the frequency of the ultrasonic waves is automatically adjusted by the ultrasonic controller 18. Then, the second window 6 is opened, and the particles are placed at their suspension points in the reaction chamber 8 through the second window 6. After the particles are stably suspended for ten seconds, the second window 6 is closed. Further, the experimental recording tools, such as the backlight source, high-speed camera, and microscope lens, placed at the third and fourth windows are adjusted, and appropriate shooting parameters are selected to record the subsequent reaction process. After all the pre-experimental conditions are set, the reaction atmosphere is introduced through the vapor generator 25 and gas source 26 via the gas inlet 81 pipe 12. After a specific time, the reaction atmosphere in the reaction chamber 8 can be considered pure. Then, the experimental recording tools and ignition device 14 are simultaneously activated to completely record the particle reaction process. After the particle reaction is complete, the experimental recording tools and ignition device 14 are promptly turned off.

[0143] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A reaction platform for performing a combustion or gasification reaction of particles, characterized in that, The reaction platform includes: A reaction chamber cavity, which is a closed chamber used to contain particles and carry out combustion or gasification reactions; An ignition device, used to ignite particles in the reaction chamber; An ultrasonic levitation device, comprising a generating part and a reflecting part; The generating part and the reflecting part are disposed opposite to each other and each extends at least partially into the interior of the reaction chamber. One end of the generating part located inside the reaction chamber is used to generate ultrasonic waves. One end of the reflecting part located inside the reaction chamber is provided with a reflecting surface facing the generating part. The reflecting surface is a surface that is concave towards the generating part and reflects the ultrasonic waves received thereon.

2. The reaction platform as described in claim 1, characterized in that, The reaction chamber is provided with an air inlet for introducing a reaction atmosphere, which is used to create a specified gaseous environment in the reaction chamber.

3. The reaction platform as described in claim 2, characterized in that, The reaction platform also includes a heating body and a heating controller. The heating body is disposed on the inner wall of the reaction chamber cavity, and the heating controller is electrically connected to the heating body. The heating controller is used to control the switching of the heating body between a working state and a non-working state. When the heating body is in the working state, the heating body is powered on and uses the electrothermal effect to heat the reaction chamber. When the heating body is in the non-working state, the heating body is de-powered.

4. The reaction platform as described in claim 2, characterized in that, The reaction platform also includes a steam generator and a gas source. The steam generator has a device inlet and a device outlet. The steam generator is used to vaporize the fluid entering the device inlet and discharge it from the device outlet. The device outlet is connected in sequence to the gas source and the gas inlet opening.

5. The reaction platform as described in claim 1, characterized in that, The reaction chamber cavity is provided with a reaction chamber shell, the generating part is fixedly connected to the top of the reaction chamber shell, and the reflecting part is fixedly connected to the bottom of the reaction chamber shell; The reaction chamber shell has a first window and a second window in the middle section between the top and bottom. The first window and the second window are arranged opposite to each other, and the first window and the second window allow light to be transmitted between the inside of the reaction chamber and the outside of the reaction chamber.

6. The reaction platform as described in claim 5, characterized in that, The ignition device is located outside the reaction chamber cavity and the reaction chamber shell. The ignition device is a laser ignition device, which is configured to emit a laser beam toward the first window. The laser beam passes through the first window, the reaction chamber cavity, and the second window in sequence.

7. The reaction platform as described in claim 5, characterized in that, The generating part extends at least partially into the interior of the reaction chamber in a vertical direction, and a first cooling flow path is provided on the generating part, the first cooling flow path extending along the height direction of the generating part.

8. The reaction platform as described in claim 5, characterized in that, The reaction chamber is provided with an air inlet for introducing a reaction atmosphere, which is used to create a specific experimental environment for combustion reaction within the reaction chamber. The reaction platform also includes a steam generator having an inlet and an outlet, and the steam generator is used to vaporize the fluid entering the inlet and discharge it from the outlet. A second cooling flow path is provided on the first window, the second cooling flow path extends around the outer contour of the first window, and the fluid outlet of the second cooling flow path is connected to the inlet of the device.

9. The reaction platform as described in claim 1, characterized in that, The ultrasonic levitation device also includes: An air-cooling section is provided at one end of the generating section located outside the reaction chamber cavity. The air-cooling section is used to introduce air and cool the generating section. An ultrasonic controller is electrically connected to one end of the generating unit where the air-cooling unit is located. The ultrasonic controller is used to control the generating unit to switch between a working state and a non-working state. When the generating unit is in the working state, it operates and generates ultrasonic waves; when the generating unit is in the non-working state, it stops generating ultrasonic waves.

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