An inspection device capable of observing a combustion reaction in a microscopic observation manner
Patent Information
- Authority / Receiving Office
- TW · TW
- Patent Type
- Patents
- Current Assignee / Owner
- NAT CHENG KUNG UNIV
- Filing Date
- 2024-10-25
- Publication Date
- 2026-08-01
AI Technical Summary
Current combustion testing of biomass pellet fuels in fluidized beds is time-consuming, costly, and unsuitable for small samples, lacking suitable commercial equipment.
A detection device with a reactor, heater, gas supply, sensing device, and computing unit that allows for rapid combustion testing of small samples, capturing temperature, image, and weight changes to assess combustion characteristics.
Facilitates quick and cost-effective assessment of biomass pellet fuel combustion, reducing detection time and costs while enabling efficient energy/resource utilization evaluation.
Smart Images

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Abstract
Description
Technical Field
[0001] This invention relates to a detection device, and more particularly to a detection device for microscopic combustion reactions. Prior Technology
[0002] Biomass pellet fuel refers to fuel produced by compressing loose agricultural and forestry biomass such as sawdust, straw, branches, and bamboo shavings into rod-shaped, block-shaped, or pellet-shaped forms using a binder under specific temperature and pressure conditions. Its energy density is comparable to that of medium-quality bituminous coal, and it boasts advantages such as ease of storage, transportation, and use, cleanliness, environmental friendliness, and high combustion efficiency. Furthermore, compared to coal, it produces lower emissions of pollutants such as NOx, SO2, and particulate matter in boiler applications. Therefore, biomass pellet fuel is an effective way to achieve efficient and clean utilization of biomass fuel and has attracted widespread attention.
[0003] In general, combustion testing of biomass pellet fuels primarily involves directly mixing them with existing combustion feedstocks. This combustion testing process requires the use of a fluidized bed, through which combustion-related data of the biomass fuel can be obtained. However, actual combustion tests have revealed that current combustion / reaction testing of biomass fuels requires prior application for a fluidized bed. The large number of fluidized bed applications leads to excessively long processing times. In addition to the high testing costs incurred by manufacturers, conventional fluidized beds are also unsuitable for testing small samples. Furthermore, there is no commercially available equipment for combustion testing. For manufacturers who simply need to understand the actual combustion characteristics of the biomass pellet fuel, the process is overly cumbersome, time-consuming, and costly, causing significant challenges for manufacturers in the early stages of fuel development. Summary of the Invention
[0004] Therefore, the purpose of this invention is to provide a detection device for microscopic combustion reactions, which can effectively shorten the waiting period for the test results of the tested samples, quickly obtain information on combustion / reaction effects, so as to facilitate subsequent energy conversion characteristic evaluation and reduce detection costs.
[0005] Therefore, the microscopic combustion reaction detection device of the present invention includes a reactor with an internal detection space for sample placement, a heater surrounding the detection space, a gas supply device for supplying the required gas to the detection space, a sensing device within the detection space, and a computing unit sample connected to the sensing device. The sample can be a solid or liquid fuel / material. The heater rapidly heats the sample to induce combustion / reaction. The gas supply device provides the appropriate gas composition based on the required gas environment, enabling the sample to exhibit a realistic reaction / combustion effect. Finally, the thermocouples, infrared sensors, and image capture devices of the sensing device are used to analyze information such as temperature detection, image capture, and weight changes during the combustion / reaction process to obtain all combustion information. Therefore, the sample only requires a small volume for immediate detection, reducing detection costs and allowing for rapid assessment of detection results, which is beneficial for subsequent energy / resource utilization evaluation. Simple Explanation of the Diagram
[0006] Figure 1 is a schematic diagram of the structure of the first preferred embodiment of the present invention. Figure 2 is a schematic diagram of the structure of the second preferred embodiment of the present invention. Implementation
[0007] The foregoing description and other technical contents, features and effects of this invention will become clear from the following detailed description of the preferred embodiments with reference to the accompanying drawings.
[0008] Referring to Figure 1, in the first preferred embodiment of the present invention, the sample tested in this embodiment is illustrated using a solid fuel / material as an example. The sample 4 can be a solid, such as biofuel or organic fuel, etc., and the sample size is between 1 mm and 20 mm. The sample is placed in the testing device 3 (shown in a simplified diagram in the figure) for testing. The testing device 3 includes a reactor 31 with an internal testing space 311 for placing the sample 4, a heater 32 disposed around the testing space 311, a gas supply device 33 for supplying the gas required to the testing space 311, and a gas supply device 33 disposed in the testing space 311. The system includes a sensing device 34 and a computing unit 35 connected to the sensing device 34. The detection space 311 is open. In this embodiment, a hook-shaped object 313 is provided in the detection space 311, and the object 313 is suspended in the detection space 311. The sample 4 can be directly hung on the object 313 for positioning, which facilitates observation of the combustion state of the sample 4. In addition, an electronic scale 345 is connected above the object 313. The electronic scale 345 can measure the weight and combustion changes of the sample 4 hanging on the object 313 in real time.
[0009] Continuing from the foregoing, the gas supply device 33 includes a heater 331 mounted on the reactor 313 and a gas source 332 connected to the heater 331 and introducing the gas into the detection space 311. The gas source 332 can be a gas that aids combustion / reaction, such as oxygen or an oxidant. In this embodiment, an oxidant is used as an example. The heater 331 can preheat the gas supplied by the gas source 332 to provide rapid combustion assistance. The sensing device 34 includes a thermocouple 341 extending into the detection space 311 and a sensor 341 located within the reactor. The furnace 31 is equipped with an infrared sensor 342 and an image capture device 343. The ends of the aforementioned thermocouples 341 protrude into the detection space 311 to monitor the furnace temperature at any time. Furthermore, the computing unit 35 can be connected to the electronic scale 345, the thermocouple 341, the infrared sensor 342, and the image capture device 343 to receive signals obtained from the electronic scale 345, the thermocouple 341, the infrared sensor 342, and the image capture device 343 for the sample 4, such as images, temperature changes, weight changes, and combustion changes. The computing unit 35 then records and stores these signals.
[0010] Referring to Figure 1, when the sample 4 is subjected to combustion testing, the sample 4 to be tested is first placed on the placement object 313, and then the heater 32 is driven to continuously supply heat to the reactor 31 under the conduction of electricity, so that the heat generated by the heater 32 can be conducted to the sample 4 to cause the sample 4 to produce a combustion reaction. The gas supply device 33 provides gas input to the reactor 31 to provide the gas required for the combustion of the sample 4. The gas system is preheated by the heater 331, which can provide a more stable supply for the combustion of the sample 4, thereby simulating the actual combustion effect. Through the design of the thermocouple 341, the heater 32 can stably maintain the furnace temperature of the reactor 31.
[0011] Continuing from the previous description, during the combustion process of sample 4, the infrared sensor 342 and image capture device 343 can capture images of sample 4 on the object 313, recording and capturing images of the changes produced by sample 4 during the combustion / reaction process. The infrared sensor 342 converts the radiant energy into electrical signals to record the temperature changes of sample 4 during combustion. Simultaneously, the weight changes of sample 4 during combustion can be observed using an electronic scale 345. Finally, the above information is connected to the computing device 3. Recording and storing data in step 5 is necessary for subsequent data analysis and evaluation of the actual reaction / combustion state of sample 4. Therefore, through the design of the microscopic combustion reaction detection device 3, the sample 4 only needs to be placed in a small volume on the device 313 to conduct combustion / reaction observation. This eliminates the waiting time for the fluidized bed and allows for the detection of small-volume samples 4, which helps to improve detection efficiency and reduce detection costs. It also provides manufacturers or materials researchers with a convenient and quick way to understand fuel characteristics, facilitating rapid evaluation of energy / resource utilization characteristics.
[0012] Referring to Figure 2, in the second preferred embodiment of the present invention, the detection device 3 for the microscopic combustion reaction still includes the reactor 31, the heater 32, the gas supply device 33, the sensing device 34, and the computing unit 35, and the aforementioned structure and the desired effects are the same as in the first embodiment, which will not be described in detail. In particular, in this embodiment, the sensing device 34 further includes a gas analyzer 344 connected to the computing unit 35, and an exhaust pipe 312 is formed above the reactor 31. The exhaust pipe 312 can communicate with the detection space 311, so that the combustion / reaction exhaust gas generated after the sample 4 is burned / reacted is discharged outside the reactor 31 through the exhaust pipe 312. Meanwhile, the gas analyzer 344 can detect the combustion / reaction exhaust gas in the discharge pipe 312; therefore, when the sample 4 is subjected to combustion / reaction detection, the exhaust gas generated by the combustion / reaction of the sample 4 is discharged through the discharge pipe 312, and the gas analyzer 344 can analyze the exhaust gas. Therefore, in this embodiment, the micro-combustion reaction detection device 3 can not only capture the sample 4 on the object 313 through the infrared sensor 342 and the image capturer 343 to analyze the sample 4 in the combustion / reaction state, but also has the ability to analyze the exhaust gas, which can confirm whether the sample 4 will cause harm to the environment, and enable the sample 4 to be more completely evaluated for energy conversion / resource utilization characteristics.
[0013] In summary, the microscopic combustion reaction detection device of the present invention, through the coordinated design of a reactor, heater, gas supply device, and sensing device, allows for the placement of small-volume liquid or solid samples. The heater of the gas supply device can then rapidly heat the sample to monitor combustion / reaction, achieving a realistic combustion / reaction effect. Finally, the sensing device monitors and captures the changes in combustion / reaction and images of the sample. Therefore, only small samples are needed for rapid combustion / reaction detection, improving detection efficiency, enabling rapid assessment of energy / resource utilization characteristics, and reducing detection costs. Thus, the purpose of the present invention is indeed achieved.
[0014] However, the above description is only for illustrating preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Any simple equivalent changes and modifications made in accordance with the scope of the patent application and the contents of the specification of the present invention should still fall within the scope of the patent of the present invention.
[0015] [This invention] 3: Detection equipment for microscopic combustion reactions 31: Reactor 311: Detection Space 312: Discharge pipe 313: Storage 32: Heater 33: Gas supply device 331: Heater 332: Gas supply source 34: Sensing device 341: Thermocouple 342: Infrared sensor 343: Image Capturer 344: Gas Analyzer 345: Electronic Weighing Scale 35: Arithmetic Unit 4: Sample
Claims
1. A detection device for microscopic combustion reactions, which samples solid fuel / materials to form a sample of a small volume, the sample size being between 1 mm and 20 mm, and the detection device comprising a reactor having an internal detection space for placing the sample, a heater disposed around the detection space for heat transfer to cause combustion of the sample, a gas supply device for supplying gas required for combustion of the sample within the detection space, a sensing device disposed within the detection space, and a computing unit connected to the sensing device; wherein, The reactor is equipped with an exhaust pipe above it, which communicates with the detection space, to allow the exhaust gas generated after the sample combustion / reaction to be discharged outside the reactor. The gas supply device includes a heater mounted on the reactor and a gas source connected to the heater and introducing gas into the detection space; the heater preheats the gas. The sensing device includes at least one thermocouple extending into the detection space to monitor the temperature inside the reactor, and an infrared sensor and an image capture device located outside the reactor to record temperature changes and images of the sample during combustion / reaction. Furthermore, the processing unit can be connected to the thermocouple, the infrared sensor, and the image capture device to receive, record, and store the signals obtained from the sample by the thermocouple, the infrared sensor, and the image capture device, respectively, for subsequent data analysis and evaluation of the sample's combustion / reaction status.
2. The detection device for microscopic combustion reactions according to claim 1, wherein, The sensing device further includes a gas analyzer, which is connected to the computing unit, and the aforementioned gas analyzer can detect the exhaust gas emitted by the exhaust pipe.
3. The detection device for microscopic combustion reactions according to claim 1, wherein, A placement device is provided within the detection space, and the placement device is suspended within the detection space to provide a place for the sample to be hung on the placement device.
4. The detection device for microscopic combustion reactions according to claim 1, wherein, The solid fuel / material can be replaced with droplets, and the droplet size does not exceed 1 millimeter (mm).
5. The detection device for micro-combustion reaction according to claim 3 is further provided with an electronic scale connected to the computing unit, and the object is weighed by the electronic scale.