Opto-thermal coupling heating device

Abstract

The utility model provides a kind of photo-thermal coupling heating device, including reaction tank, photo-thermal component, adjusting mechanism and controller;Temperature detection piece is equipped in reaction tank;Photo-thermal component is located at the backlight side of reaction tank and has light-reflecting part and light-collecting part, light-reflecting part is used to form photo-thermal area on reaction tank, light-collecting part is used to gather reflected sunlight towards photo-thermal area;Adjustable light-collecting included angle is formed between light-collecting part and light-reflecting part, controller controls adjusting mechanism action based on the detection data of temperature detection piece to change light-collecting included angle.The utility model provides photo-thermal coupling heating device, can use photo-thermal component to heat the backlight side of reaction tank that cannot be directly irradiated by sunlight, to improve solar energy utilization rate, and realize the adjustment of light-collecting included angle by the cooperation of temperature detection piece and adjusting mechanism, to adjust heating temperature, help to reduce the dependence on auxiliary temperature regulating facilities and realize energy saving and emission reduction.

Description

Technical Field

[0001] This invention belongs to the field of photothermal catalytic cracking technology, specifically relating to a photothermal coupling heating device. Background Technology

[0002] Photothermal catalytic cracking is a process that combines light and heat energy to promote chemical reactions. In photothermal catalytic cracking, light energy is used to excite the photocatalyst, causing it to generate high-energy electrons and holes. Traditional formic acid catalytic cracking reactions require heating to above 250°C, typically using electric or gas heating methods. This not only increases energy consumption but also leads to extremely high production costs and environmental burdens. Therefore, solar energy is increasingly being utilized in photothermal catalytic cracking, which can not only excite the photocatalyst but also convert light energy into heat energy for heating, thereby achieving energy conservation and emission reduction.

[0003] The current method of heating the photothermal catalytic cracking reaction using solar energy is to directly use a concentrator to focus sunlight onto the reaction vessel to form irradiation. The drawback of this heating method is that the heating effect is greatly affected by the weather. It usually requires the configuration of electric auxiliary heating and a cooler to balance the heating temperature. Specifically, when the sunlight is weak, the electric auxiliary heating needs to be turned on, and when the sunlight is too strong, the cooler needs to be turned on. Therefore, although it utilizes solar energy to a certain extent, the utilization efficiency is very low, and there is still a lot of room for improvement. Utility Model Content

[0004] This utility model provides a photothermal coupling heating device, which aims to improve the utilization rate of solar energy and promote photothermal catalytic cracking to enhance energy conservation and emission reduction indicators.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A photothermal coupling heating device is provided, comprising a reaction vessel, a photothermal component, an adjustment mechanism, and a controller; the reaction vessel is used to contain a photothermal pyrolysis solution and a catalyst, and is equipped with a temperature detection element inside; the photothermal component is located on the backlight side of the reaction vessel and has a reflective part and a concentrating part, the reflective part is used to reflect sunlight parallel to the reaction vessel and form a photothermal area on the reaction vessel, and the concentrating part is located on the outer periphery of the reflective part and is used to converge and reflect sunlight towards the photothermal area; the adjustment mechanism is located on the photothermal component and connected to the concentrating part; the controller is electrically connected to the temperature detection element and the adjustment mechanism respectively; wherein, an adjustable concentrating angle is formed between the concentrating part and the reflective part, and the controller controls the adjustment mechanism to change the concentrating angle based on the detection data of the temperature detection element.

[0006] In some embodiments, the light-concentrating part includes a plurality of light-concentrating plates hinged to the edge of the reflective part, each light-concentrating plate forming a light-concentrating angle with the reflective part, and each light-concentrating plate being drivenly connected to the adjustment mechanism.

[0007] In some embodiments, the adjustment mechanism includes an adjustment frame, a slide block, multiple connecting rods, and a first rotary drive member; the adjustment frame is fixedly connected to the back of the reflector; the slide block is slidably connected to the adjustment frame and the sliding direction is perpendicular to the reflector; each connecting rod is respectively hinged to each focusing plate and is also hinged to the slide block; the first rotary drive member is fixedly connected to the adjustment frame and electrically connected to the controller, and the output end of the first rotary drive member is provided with a lead screw, which is rotatably connected to the adjustment frame, and one end of the lead screw passes through the slide block and is threaded into the slide block.

[0008] For example, the adjustment frame includes a fixed base, a plurality of guide rods, and a drive base; the fixed base is fixedly connected to the back of the reflective part; each guide rod is fixedly connected to the fixed base and distributed at intervals along the circumference of the lead screw, and each guide rod passes through the slide along the axial direction of the lead screw and slides into the slide; the drive base is spaced apart on the side of the fixed base away from the reflective part and is fixedly connected to each guide rod, and a first rotary drive member is connected to the drive base; wherein, the two ends of the lead screw are rotatably connected to the fixed base and the drive base respectively.

[0009] For example, the photothermal assembly also includes a support frame with two support arms that extend upward through the space between adjacent links and are connected to a mounting base.

[0010] In one possible implementation, both the peripheral and top walls of the reaction vessel are provided with a layer of photothermal material.

[0011] In some embodiments, the photothermal coupling heating device further includes a rotating support, with the reaction vessel fixed to the rotating end of the rotating support.

[0012] For example, the rotating support includes a base, a turntable, and a second rotating drive component; wherein, the base is supported on the ground and has a fixed shaft extending upward at its center; the turntable is rotatably sleeved on the fixed shaft and has a gear ring sleeved on its outer periphery; the second rotating drive component is fixed to the base and has a drive gear sleeved on its output end, and the drive gear meshes with the gear ring.

[0013] For example, the base is equipped with a light-transmitting and heat-insulating cover, and the reaction vessel is located inside the light-transmitting and heat-insulating cover.

[0014] In some embodiments, the bottom of the light-transmitting heat-insulating cover is provided with an openable ventilation door.

[0015] The beneficial effects of the photothermal coupling heating device provided by this utility model are as follows: Compared with the prior art, the photothermal coupling heating device of this utility model has a temperature detection device installed inside the reaction vessel that can detect the heating temperature of the photothermal pyrolysis solution and catalyst contained inside in real time. The controller can then generate instructions to control the adjustment mechanism to perform actions based on the detection data fed back by the temperature detection device. Specifically, when the temperature detection value of the temperature detection device is higher than the set range, the control adjustment mechanism drives the concentrator to move to increase the concentrating angle, thereby reducing the amount of sunlight concentrated in the photothermal area. This is usually used when the sunlight is too strong. When the temperature detection value of the temperature detection device is lower than the set range, the control adjustment mechanism drives the concentrator to move in the opposite direction to reduce the concentrating angle, thereby increasing the amount of sunlight concentrated in the photothermal area. This usually occurs when the light intensity is weak. By adjusting the above-mentioned concentrating angle, the flexibility of the photothermal component in utilizing solar energy can be improved, avoiding the energy consumption caused by the need for electric auxiliary heating when the light is weak and cooling measures are needed when the light is too strong, thus promoting energy conservation and emission reduction.

[0016] Furthermore, considering that the heating temperature of photothermal catalytic cracking needs to reach above 250℃, the probability of needing to cool down due to excessively strong sunlight is relatively low. It is more important to make full use of sunlight to achieve the target heating temperature. Therefore, the photothermal components are placed on the back side of the reaction tank. The sunlight reflected by the reflective and concentrating parts forms a photothermal area on the back side of the reaction tank, while the sun-facing side and top of the reaction tank can receive heat from direct sunlight. This ensures that all parts of the reaction tank can receive solar energy heating, thereby improving the utilization rate of solar energy, reducing or even eliminating the dependence on electric auxiliary heating, and promoting the improvement of energy conservation and emission reduction indicators in photothermal catalytic cracking. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the photothermal coupling heating device provided in the embodiment of this utility model;

[0018] Figure 2 A three-dimensional structural diagram of the photothermal component used in this embodiment of the utility model. Figure 1 ;

[0019] Figure 3 A three-dimensional structural diagram of the photothermal component used in this embodiment of the utility model. Figure 2 ;

[0020] Figure 4 This is a schematic diagram showing the focusing angle formed between the light-concentrating plate and the reflective part in an embodiment of this utility model.

[0021] In the diagram: 10. Reaction vessel; 11. Temperature detection element; 12. Photothermal material layer; 20. Photothermal assembly; 21. Reflector; 22. Concentrator; 221. Concentrator plate; 23. Bracket; 231. Support arm; 30. Adjustment mechanism; 31. Adjustment frame; 311. Fixed seat; 312. Guide rod; 313. Drive seat; 32. Slide; 33. Connecting rod; 34. First rotary drive component; 341. Lead screw; 40. Controller; 50. Rotary support; 51. Base; 511. Fixed shaft; 52. Turntable; 521. Gear ring; 53. Second rotary drive component; 531. Drive gear; 60. Light-transmitting heat-insulating cover; 61. Ventilation door. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] It should be noted that when an element is referred to as being "set on" or "connected to" another element, it can be directly on or indirectly on the other element. It should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" or "several" means two or more, unless otherwise explicitly specified.

[0024] Please refer to the following: Figures 1 to 4The photothermal coupling heating device provided by this utility model will now be described. The photothermal coupling heating device includes a reaction tank 10, a photothermal component 20, an adjustment mechanism 30, and a controller 40. The reaction tank 10 is used to contain a photothermal pyrolysis solution and a catalyst, and a temperature detection element 11 is provided inside. The photothermal component 20 is located on the backlight side of the reaction tank 10 and has a reflective part 21 and a concentrating part 22. The reflective part 21 is used to reflect sunlight in parallel towards the reaction tank 10 and form a photothermal area on the reaction tank 10. The concentrating part 22 is located on the outer periphery of the reflective part 21 and is used to converge and reflect sunlight towards the photothermal area. The adjustment mechanism 30 is located on the photothermal component 20 and connected to the concentrating part 22. The controller 40 is electrically connected to the temperature detection element 11 and the adjustment mechanism 30 respectively. An adjustable concentrating angle A is formed between the concentrating part 22 and the reflective part 21. The controller 40 controls the adjustment mechanism 30 to change the concentrating angle A based on the detection data of the temperature detection element 11.

[0025] It should be explained that in this embodiment, the sunlight reflected by the reflector 21 is parallel light, which can directly reflect the sunlight to the back side of the reaction vessel 10, forming a photothermal area on the back side wall of the reaction vessel 10. The concentrator 22 can reflect the light from the outer periphery of the reflector 21 into focused light based on the concentrating angle A, and then irradiate the photothermal area. Here, the concentrator 22 can be in the form of an arc surface or a concave spherical surface to achieve the above-mentioned concentrating effect. The smaller the concentrating angle A, the higher the degree of concentrating of the arc surface or the concave spherical surface. When the concentrating angle A decreases to a certain value, all the sunlight irradiating the concentrator 22 is reflected onto the photothermal area. When the concentrating angle A gradually increases from this value, the sunlight irradiating the concentrator 22 cannot be completely reflected onto the photothermal area. That is to say, as the concentrating angle A increases, the amount of light reflected by the concentrator 22 onto the photothermal area decreases. Therefore, by adjusting the concentrating angle A, the heating energy of the concentrator 22 on the reaction vessel 10 can be adjusted.

[0026] In this embodiment, the temperature detection element 11 can be a temperature sensor, specifically, multiple temperature sensors arranged at intervals along the circumference of the reaction vessel 10. The controller 40 receives the detection data, i.e., the temperature detection value, from the temperature detection element 11. If the temperature detection value is higher than the set range (for example, the set range is 240℃~260℃), the controller 40 controls the adjustment mechanism 30 to drive the concentrator 22 to move to increase the concentrating angle A, thereby reducing the solar energy in the solar thermal region. When the stable detection value is lower than the above-mentioned set range, the controller 40 controls the adjustment mechanism 30 to drive the concentrator 22 to move in the opposite direction to reduce the concentrating angle A, thereby increasing the solar energy in the solar thermal region.

[0027] It should be explained that the reaction vessel 10 can be a polygonal column structure or a cylindrical structure. Here, a cylindrical reaction vessel 10 is preferred. The north side of the reaction vessel 10 cannot be directly exposed to sunlight, so it is called the backlight side. If the reaction vessel 10 is heated by direct sunlight alone, the temperature of its backlight side will be low. Therefore, in this embodiment, the photothermal component 20 is set on the backlight side of the reaction vessel 10, so that all parts of the reaction vessel 10 can be irradiated by sunlight, thereby improving the heating uniformity of the photothermal decomposition solution and catalyst in the reaction vessel 10.

[0028] Compared with the prior art, the photothermal coupling heating device provided in this embodiment has a temperature detection element 11 installed inside the reaction tank 10, which can detect the heating temperature of the photothermal pyrolysis solution and catalyst contained inside in real time. The controller 40 can then generate a command for the control and adjustment mechanism 30 to operate based on the detection data fed back by the temperature detection element 11, thereby adjusting the focusing angle A. The adjustment can improve the flexibility of the photothermal component 20 in utilizing solar energy, avoid the energy consumption caused by the need to take electric auxiliary heating measures when the light is weak and cooling and heat dissipation measures when the light is too strong, and promote energy conservation and emission reduction.

[0029] The photothermal component 20 is installed on the back side of the reaction tank 10. It can form a photothermal area on the back side of the reaction tank 10 by using the sunlight reflected by the reflector 21 and the concentrator 22. The side facing the sun and the top of the reaction tank 10 can be directly exposed to sunlight and obtain heat. This ensures that all parts of the reaction tank 10 can be heated by solar energy, thereby improving the utilization rate of solar energy, reducing or even eliminating the dependence on electric auxiliary heating, and promoting photothermal catalytic cracking to improve energy saving and emission reduction indicators.

[0030] In some embodiments, see Figure 3 and Figure 4 The focusing section 22 includes several focusing plates 221 hinged to the edge of the reflector section 21. Each focusing plate 221 forms a focusing angle A with the reflector section 21, and each focusing plate 221 is connected to the adjustment mechanism 30. Each focusing plate 221 is independently hinged to the edge of the reflector section 21. Specifically, the reflector section 21 can be set as a regular polygon, such as a regular hexagon, with a focusing plate 221 hinged to each side. When the focusing angle A increases, the focusing plates 221 disperse; when the focusing angle A decreases, they converge. The adjustment mechanism 30 is controlled by the controller 40 and simultaneously drives each focusing plate 221 to swing relative to the reflector section 21, thereby adjusting the focusing angle A. The structure is compact and the adjustment method is simple and stable.

[0031] As one specific embodiment of the aforementioned regulating mechanism 30, please refer to Figure 3The adjustment mechanism 30 includes an adjustment frame 31, a slide block 32, multiple connecting rods 33, and a first rotary drive member 34. The adjustment frame 31 is fixedly connected to the back of the reflector 21. The slide block 32 is slidably connected to the adjustment frame 31 and its sliding direction is perpendicular to the reflector 21. Each connecting rod 33 is respectively hinged to each light-gathering plate 221 and is also hinged to the slide block 32. The first rotary drive member 34 is fixedly connected to the adjustment frame 31 and electrically connected to the controller 40. The output end of the first rotary drive member 34 is provided with a lead screw 341, which is rotatably connected to the adjustment frame 31. One end of the lead screw 341 passes through the slide block 32 and is threadedly engaged with the slide block 32.

[0032] The first rotary drive 34 can be a servo motor or a stepper motor, which can ensure motion accuracy. By driving the lead screw 341 at its output end to rotate through the first rotary drive 34, the slide 32 can be driven to move on the adjustment frame 31 by utilizing the threaded engagement between the lead screw 341 and the slide 32. During the movement of the slide 32, the focusing plate 221 is oscillated synchronously through each connecting rod 33 to achieve the adjustment of the focusing angle A. The adjustment method is simple, flexible and compact.

[0033] Specifically, such as Figure 3 As shown, in this embodiment, the adjustment frame 31 includes a fixed base 311, a plurality of guide rods 312, and a drive base 313; the fixed base 311 is fixedly connected to the back of the reflective part 21; each guide rod 312 is fixedly connected to the fixed base 311 and is distributed at intervals along the circumference of the lead screw 341, and each guide rod 312 passes through the slide block 32 along the axial direction of the lead screw 341 and slides in cooperation with the slide block 32; the drive base 313 is spaced apart on the side of the fixed base 311 away from the reflective part 21 and is fixedly connected to each guide rod 312, and a first rotary drive member 34 is connected to the drive base 313; wherein, the two ends of the lead screw 341 are rotatably connected to the fixed base 311 and the drive base 313 respectively.

[0034] The fixed seat 311 can be a flat plate structure and is fixed to the back of the reflector 21. Each guide rod 312 serves as a connection support between the drive seat 313 and the fixed seat 311, and also as the mounting base for the slide 32. The sliding guide rods 312 improve the stability of the slide 32 moving along the axial direction of the lead screw 341. On this basis, the fixed seat 311 and the drive seat 313 are rotatably connected at both ends of the lead screw 341, which can improve the connection reliability and rotational smoothness of the lead screw 341, and further enhance the stability of the slide 32's movement.

[0035] It is important to understand that you should refer to [the relevant documentation / reference]. Figure 3In this embodiment, the photothermal assembly 20 also includes a bracket 23, which has two support arms 231. The two support arms 231 pass upward through the portion between adjacent connecting rods 33 and are connected to the fixing base 311. The space between the connecting rods 33 allows the support arms 231 connected to the fixing base 311 to extend downward beyond the area covered by the focusing part 22. This allows the bracket 23 to easily support the reflector 21 and the focusing part 22 in a suspended state, avoiding collisions and motion interference between the focusing part 22 and the ground, thus ensuring the flexibility and stability of the focusing angle A.

[0036] Among some possible implementations, such as Figure 1 As shown, the reaction vessel 10 has a photothermal material layer 12 on both its peripheral and top walls. Photothermal materials are materials that can generate heat under sunlight. Considering that the heat in sunlight mainly comes from infrared radiation, the material of the photothermal material layer 12 can preferably be a TiC / Cu-based photothermal material composed of TiC (titanium carbide) and Cu (copper). The combination of TiC and Cu has a specific absorption peak in the infrared band, thus exhibiting strong absorption capacity for infrared radiation from sunlight. This effectively absorbs the energy of infrared radiation and converts it into heat energy, thereby improving the heat energy conversion rate of solar radiation and increasing the utilization rate of solar energy. In particular, it ensures that the reaction vessel 10 can achieve the required target temperature, thereby reducing or even completely eliminating the energy consumption for electric auxiliary heating.

[0037] As a modified embodiment of the above-mentioned photothermal coupling heating device, please refer to Figure 1 The photothermal coupling heating device also includes a rotating support 50, with the reaction vessel 10 fixed to the rotating end of the rotating support 50. Since there may be differences in energy conversion between the part of the reaction vessel 10 exposed to direct sunlight and its photothermal region on the shaded side, the rotating support 50 is used to drive the reaction vessel 10 to rotate continuously or intermittently to ensure uniform heating at all locations of the reaction vessel 10. This ensures uniform heating of the reaction vessel 10 and is beneficial to the stability of photothermal catalytic cracking.

[0038] Optionally, such as Figure 1 As shown, the aforementioned rotating support 50 includes a base 51, a turntable 52, and a second rotating drive member 53; wherein, the base 51 is supported on the ground and has a fixed shaft 511 extending upward at its center; the turntable 52 is rotatably sleeved on the fixed shaft 511 and has a gear ring 521 sleeved on its outer circumference; the second rotating drive member 53 is fixed to the base 51 and has a drive gear 531 sleeved on its output end, and the drive gear 531 meshes with the gear ring 521.

[0039] The second rotary drive 53 can be a motor. The drive gear 531 at the output end of the second rotary drive 53 drives the gear ring 521 to rotate, thereby driving the turntable 52 to rotate the reaction tank 10. The drive structure is simple and stable. Specifically, considering that the heating efficiency of the photothermal area of ​​the reaction tank 10 is higher than that of the area directly exposed to sunlight due to the presence of the light-concentrating part 22, multiple temperature detection elements 11 can be arranged circumferentially inside the reaction tank 10. Each temperature detection element 11 feeds back temperature detection data to the controller 40. The controller 40 compares the temperature detection data and controls the second rotary drive 53 to rotate according to the position of the temperature detection element 11 corresponding to the lowest value, until the part where the temperature detection element 11 is located enters the irradiation range of the reflector 21 and the light-concentrating part 22 to form a photothermal area. This allows for targeted adjustment of the temperature uniformity of various parts of the reaction tank 10.

[0040] It should be noted that you should refer to [link / reference]. Figure 1 In this embodiment, a light-transmitting heat-insulating cover 60 is provided on the base 51, and the reaction vessel 10 is located inside the light-transmitting heat-insulating cover 60. Since the heating temperature required for photothermal catalytic cracking is relatively high, above 250°C, the light-transmitting heat-insulating cover 60 can reduce the external heat loss of the reaction vessel 10 while ensuring sunlight, thereby improving heating efficiency and avoiding the situation where the reaction vessel 10 dissipates heat too quickly due to the low ambient temperature, thus preventing the target temperature from being achieved.

[0041] Considering the possibility of excessively strong sunlight, in order to meet the needs of heat dissipation and cooling, such as Figure 1 As shown, the bottom of the aforementioned light-transmitting heat-insulating cover 60 is equipped with an openable ventilation door 61. When the detected value of the temperature sensor 11 exceeds the set range, the controller 40 can issue an alarm to remind the staff to open the ventilation door 61. Then, the heat inside the light-transmitting heat-insulating cover 60 and the heat on the surface of the reaction vessel 10 can be quickly removed by air circulation, thereby achieving a rapid reduction in the internal temperature of the reaction vessel 10. When the temperature reaches the set range, the ventilation door 61 can be closed again.

[0042] Of course, considering production automation, the ventilation door 61 can be an automatic opening and closing door that is electrically connected to the controller 40. When the temperature sensor 11 detects that the temperature exceeds the target range, the controller 40 obtains the detection data and controls the ventilation door 61 to open automatically. When the temperature returns to the target range, the controller 40 controls the ventilation door 61 to close automatically.

[0043] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A photothermal coupling heating device, characterized in that, include: The reaction vessel is used to contain the photothermal pyrolysis solution and catalyst, and is equipped with a temperature detection device inside. A photothermal component is disposed on the backlight side of the reaction vessel and has a reflective part and a concentrating part. The reflective part is used to reflect sunlight in parallel toward the reaction vessel and form a photothermal area on the reaction vessel. The concentrating part is located on the outer periphery of the reflective part and is used to converge and reflect sunlight toward the photothermal area. An adjustment mechanism is provided on the photothermal component and connected to the light-concentrating part; The controller is electrically connected to both the temperature sensor and the regulating mechanism. The light-concentrating part and the reflective part form an adjustable light-concentrating angle, and the controller controls the adjustment mechanism to change the light-concentrating angle based on the detection data of the temperature detection element.

2. The photothermal coupling heating device as described in claim 1, characterized in that, The light-concentrating part includes a plurality of light-concentrating plates hinged to the edge of the reflective part. Each light-concentrating plate forms a light-concentrating angle with the reflective part, and each light-concentrating plate is drivenly connected to the adjustment mechanism.

3. The photothermal coupling heating device as described in claim 2, characterized in that, The adjustment mechanism includes: An adjustment bracket is fixedly connected to the back of the reflective part; A sliding block is slidably connected to the adjusting frame and its sliding direction is perpendicular to the reflective part; Multiple connecting rods are respectively hinged to each of the light-concentrating plates, and all are hinged to the slide block; A first rotary drive component is fixedly connected to the adjustment frame and electrically connected to the controller. The output end of the first rotary drive component is provided with a lead screw, which is rotatably connected to the adjustment frame, and one end of the lead screw passes through the slide block and is threadedly engaged with the slide block.

4. The photothermal coupling heating device as described in claim 3, characterized in that, The adjustment frame includes: The mounting base is fixedly connected to the back of the reflective part; Multiple guide rods are fixedly connected to the fixed base and distributed at intervals along the circumference of the lead screw. Each guide rod passes through the slide along the axial direction of the lead screw and slides with the slide. A drive base is spaced apart on the side of the fixed base away from the reflective part and fixedly connected to each of the guide rods; the first rotary drive component is connected to the drive base. The two ends of the lead screw are rotatably connected to the fixed seat and the drive seat, respectively.

5. The photothermal coupling heating device as described in claim 4, characterized in that, The photothermal assembly also includes a bracket with two support arms, which pass upward through the portion between adjacent connecting rods and are connected to the fixed base.

6. The photothermal coupling heating device as described in claim 1, characterized in that, The reaction vessel is provided with a photothermal material layer on both its peripheral and top walls.

7. The photothermal coupling heating device according to any one of claims 1-6, characterized in that, The photothermal coupling heating device also includes a rotating support, and the reaction vessel is fixed to the rotating end of the rotating support.

8. The photothermal coupling heating device as described in claim 7, characterized in that, The rotating support includes: The base is supported on the ground and has a fixed axis extending upward from the center; A turntable is rotatably fitted onto the fixed shaft and has a toothed ring fitted on its outer circumference; The second rotary drive component is fixed to the base and has a drive gear sleeved at its output end. The drive gear meshes with the gear ring.

9. The photothermal coupling heating device as described in claim 8, characterized in that, The base is equipped with a light-transmitting and heat-insulating cover, and the reaction vessel is located inside the light-transmitting and heat-insulating cover.

10. The photothermal coupling heating device as described in claim 9, characterized in that, The bottom of the light-transmitting heat-insulating cover is equipped with an openable ventilation door.

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