Smoke chamber with adjustable ultraviolet light intensity

Abstract

The embodiment of the utility model discloses a smoke box with adjustable ultraviolet light intensity. The smoke box comprises a reaction box and an outer cover box, the reaction box comprises a box body frame and a light-transmitting material layer, the light-transmitting material layer is enclosed in the box body frame to form a closed reaction chamber, the light-transmitting material layer is fixed with the top surface of the box body frame, and the light-transmitting material layer is provided with a first gas exchange port and a second gas exchange port which are communicated with the interior of the closed reaction chamber; the outer cover box covers the reaction box, a plurality of groups of ultraviolet lamps and dimming ballasts which are arranged in pairs are mounted on the inner wall of the outer cover box, and a stepless dimming knob and a power supply are arranged on the outer side of the outer cover box; each ultraviolet lamp is electrically connected with the corresponding group of dimming ballasts, each dimming ballast is electrically connected to the stepless dimming knob, and the stepless dimming knob and each dimming ballast are electrically connected to the power supply. According to the embodiment of the invention, a plurality of groups of ultraviolet lamps and dimming ballasts which are arranged in pairs, and the stepless dimming knob and the power supply form a circuit access, so that the illumination intensity of the ultraviolet lamps can be steplessly adjusted.

Description

Technical Field

[0001] This application relates to the field of air pollution control technology, and in particular to a smoke chamber with adjustable ultraviolet light intensity. Background Technology

[0002] A smog chamber is an experimental device used to simulate the atmospheric environment, specifically designed to investigate the formation mechanisms of photochemical smog and secondary organic aerosols. By simulating chemical reactions in the atmosphere, smog chambers help researchers reveal the core mechanisms of atmospheric environmental chemical changes from complex experimental data. Because experimental conditions can be set and adjusted manually, and multiple repetitive experiments can be conducted, smog chambers have shown significant advantages in conducting fundamental research in atmospheric environmental chemistry and solving complex environmental problems.

[0003] In existing technologies, indoor smoke chambers use a fixed light intensity as the light source for the reaction, and the reaction temperature can be adjusted manually. In experiments, the light intensity and light distribution can be controlled by manually controlling the number of UV lamps on and off to conduct repeatable experiments. However, the change in light intensity achieved by controlling the number of UV lamps on and off cannot match the linear change in light intensity in the natural environment, which introduces uncertainty into the measurement of photochemical reaction rate and causes the simulation results to deviate from the actual results.

[0004] In practical research, researchers hope to precisely control the light intensity of the human-source light source in a smoke chamber system by adjusting the intensity of the ultraviolet lamp, which is crucial for conducting reproducible experiments. Therefore, how to provide a smoke chamber system with adjustable ultraviolet light intensity has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] To address at least one of the problems mentioned in the background art, embodiments of this application provide a smoke box with adjustable ultraviolet light intensity. By forming a circuit path with multiple pairs of ultraviolet lamps, a dimming ballast, and a stepless dimming knob and power supply, the light intensity of the ultraviolet lamps can be steplessly adjusted to match the actual changes in sunlight intensity. This facilitates conducting simulation experiments that are completely consistent with the changes in ultraviolet light intensity emitted by actual sunlight, and allows for repeated experiments.

[0006] To achieve the above objectives, this application provides a smoke chamber with adjustable ultraviolet light intensity, including a reaction chamber and an outer casing.

[0007] The reaction chamber includes a frame and a light-transmitting material layer. The light-transmitting material layer is enclosed within the frame to form a sealed reaction chamber. The light-transmitting material layer is fixed to the top surface of the frame and is freely disposed relative to the sides and bottom surface of the frame. The light-transmitting material layer is provided with a first gas exchange port and a second gas exchange port that communicate with the interior of the sealed reaction chamber.

[0008] The outer enclosure is installed outside the reaction chamber. Multiple pairs of ultraviolet lamps and dimming ballasts are installed on the inner wall of the outer enclosure. A stepless dimming knob and a power supply are installed on the outer side of the outer enclosure. Each ultraviolet lamp is electrically connected to the corresponding dimming ballast. Each dimming ballast is electrically connected to the stepless dimming knob. The stepless dimming knob and each dimming ballast are electrically connected to the power supply.

[0009] In one feasible implementation, the ultraviolet lamp includes a lamp holder and a lamp tube, the dimming ballast has a power connection port, a lamp tube connection port and a signal connection port, and the stepless dimming knob has a power connection port and a signal connection port.

[0010] The lamp holder is fixed to the inner wall of the outer casing, and the lamp tube is inserted into the lamp holder; the dimming ballast is fixed to the inner wall of the outer casing, the power terminal of the dimming ballast is electrically connected to the power source, the lamp tube terminal of the dimming ballast is electrically connected to the lamp holder, and the signal terminal of the dimming ballast is electrically connected to the signal terminal of the stepless dimming knob; the stepless dimming knob is fixed to the outer wall of the outer casing, and the power terminal of the stepless dimming knob is electrically connected to the power source.

[0011] In one feasible implementation, the ultraviolet lamp, the dimming ballast, the stepless dimming knob, and the power supply are all electrically connected via a single-core hard copper wire.

[0012] In one feasible implementation, the reaction chamber's frame comprises an aluminum-assembled cuboid frame, and the light-transmitting material layer comprises a polytetrafluoroethylene (PTFE) film located within the cuboid frame, with the top surface of the PTFE film clamped to the top of the cuboid frame.

[0013] In one feasible implementation, the first gas exchange port and the second gas exchange port are respectively disposed on two opposite sides of the reaction chamber; each gas exchange port includes a mounting plate and an exchange port, the mounting plate is fixed on the light-transmitting material layer, and the mounting plate has a plurality of exchange ports for inserting gas hoses and communicating with the interior of the sealed reaction chamber.

[0014] The reaction chamber is equipped with a turbulence fan for stirring the gas.

[0015] In one feasible implementation, the side walls and top walls of the outer casing are each provided with multiple sets of the ultraviolet lamps and the dimming ballasts.

[0016] In one feasible implementation, the outer casing includes an outer frame, an insulation layer, and a reflective layer, wherein the insulation layer is embedded in the outer frame and the reflective layer is applied to the inner side of the outer casing.

[0017] In one feasible implementation, the side wall of the outer casing corresponding to the gas exchange port is configured as a rotatable side wall, the rotatable side wall being hinged to the side wall of the adjacent outer casing, and the rotatable side wall being provided with a connection interface for a gas hose to pass through.

[0018] In one feasible implementation, the reaction chamber frame is provided with support legs, and the support legs are provided with a moving device for entering and exiting the outer casing.

[0019] In one feasible implementation, the reaction chamber is located on the ground, and the outer enclosure is configured as a structure consisting of side walls and a top wall.

[0020] This application provides a smoke box with adjustable ultraviolet light intensity. A circuit is formed by connecting multiple pairs of paired ultraviolet lamps, a dimming ballast, and a stepless dimming knob to a power supply. When ultraviolet light intensity adjustment is required, the stepless dimming knob sends a dimming signal to the dimming ballast, which then changes the electrical parameters input to the ultraviolet lamps to adjust the lamp intensity. Therefore, this application can steplessly adjust the ultraviolet lamp intensity to match the actual changes in sunlight intensity, facilitating simulation experiments that perfectly match the changes in ultraviolet light intensity emitted by actual sunlight, and allowing for repeated experiments.

[0021] This embodiment of the application sets up a reaction chamber with only the top surface connected to the chamber frame, which allows the light-transmitting material layer to move freely with pressure changes during the evacuation and degassing process of the experiment, ensuring that the atmospheric pressure inside the reaction chamber is consistent with the external pressure, and improving the accuracy of the detection results of the detection equipment. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1This is a schematic diagram of the structure of the smoke box provided in an embodiment of this application;

[0024] Figure 2 for Figure 1 The main view;

[0025] Figure 3 This is a schematic diagram of the structure of a smoke box with part of its outer casing opened, as provided in an embodiment of this application.

[0026] Figure 4 for Figure 3 The main view;

[0027] Figure 5 for Figure 4 The right view;

[0028] Figure 6 This is a schematic diagram of the structure of the outer casing after it has been opened, as provided in an embodiment of this application.

[0029] Figure 7 Another angle view of the outer casing portion after it has been opened, as provided in an embodiment of this application;

[0030] Figure 8 This is a schematic diagram of the structure of the reaction chamber provided in an embodiment of this application;

[0031] Figure 9 This is a schematic diagram of the ultraviolet lamp circuit connection according to an embodiment of this application.

[0032] Explanation of reference numerals in the attached figures:

[0033] 10-Smoke Box;

[0034] 100-Reaction Box;

[0035] 110 - Box frame; 111 - Support leg;

[0036] 120 - Transparent material layer; 121 - First gas exchange port; 122 - Second gas exchange port;

[0037] 200-Outer casing;

[0038] 210 - Outer frame; 211 - Insulation layer; 212 - Reflective layer;

[0039] 220 - Rotatable sidewall; 221 - Connection interface;

[0040] 231-UV lamp; 232-Dimming ballast; 233-Stepless dimming knob; 234-Power supply. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. It is worth noting that the embodiments described in the accompanying drawings are only some embodiments of this application, and not all embodiments. That is, the embodiments described with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application.

[0042] The following will combine Figures 1-9 The ultraviolet light intensity adjustable smoke box 10 provided in the embodiments of this application will be described.

[0043] This application provides a smoke box 10 with adjustable ultraviolet light intensity, referring to... Figures 1-8 As shown, it includes a reaction chamber 100 and an outer casing 200.

[0044] The reaction chamber 100 includes a chamber frame 110 and a light-transmitting material layer 120. The light-transmitting material layer 120 surrounds the chamber frame 110 to form a sealed reaction chamber. The light-transmitting material layer 120 is fixed to the top surface of the chamber frame 110, and the light-transmitting material layer 120 is freely disposed relative to the side and bottom surfaces of the chamber frame 110. The light-transmitting material layer 120 is provided with a first gas exchange port 121 and a second gas exchange port 122 that communicate with the interior of the sealed reaction chamber.

[0045] An outer enclosure 200 is installed outside the reaction chamber 100. Multiple pairs of paired ultraviolet lamps 231 and dimming ballasts 232 are installed on the inner wall of the outer enclosure 200. A stepless dimming knob 233 and a power supply 234 are located on the outer side of the outer enclosure 200. Each ultraviolet lamp 231 is electrically connected to its corresponding dimming ballast 232, and each dimming ballast 232 is electrically connected to the stepless dimming knob 233. The stepless dimming knob 233 and each dimming ballast 232 are all electrically connected to the power supply 234.

[0046] The first gas exchange port 121 can be connected to the gas intake system via a gas hose for filling the reaction chamber with gas. The second gas exchange port 122 can be connected to a vacuum pump via a gas hose for exhausting the reaction chamber. The first gas exchange port 121 and the second gas exchange port 122 can also be connected to detection equipment via gas hoses for extracting gas for detection and analysis.

[0047] The ultraviolet lamp 231 emits ultraviolet light and can emit ultraviolet light of different intensities after the voltage, power supply frequency, and other electrical parameters are changed by the dimming ballast 232. The dimming ballast 232 can be a DALI dimming ballast, used to receive dimming signals from the stepless dimming knob 233 and change the electrical parameters input to the ultraviolet lamp 231 according to the dimming signal, thereby controlling and adjusting the light intensity of the ultraviolet lamp 231. The stepless dimming knob 233 is used to send dimming signals to the dimming ballast 232. The power supply 234 is connected to an external power source to provide power to the dimming ballast 232, the ultraviolet lamp 231, and the stepless dimming knob 233.

[0048] After gas is introduced through the first gas exchange port 121, the reaction chamber is filled with gas. The light-transmitting material layer 120 allows ultraviolet light to pass through and irradiate the gas inside the reaction chamber. During the experiment, as needed, a dimming signal is sent to the dimming ballast 232 by rotating the stepless dimming knob 233. The dimming ballast 232 receives the dimming signal and changes the electrical parameters input to the ultraviolet lamp 231, causing the ultraviolet lamp 231 to emit ultraviolet light of different intensities, thus adjusting the light intensity of the ultraviolet lamp 231. In this way, the light intensity of the ultraviolet lamp can be steplessly adjusted to match the changes in the light intensity of actual sunlight, facilitating the conduct of simulation experiments that completely match the changes in the light intensity of ultraviolet light emitted by actual sunlight, and allowing for multiple repeatable experiments.

[0049] During the experiment, the detection equipment continuously extracts gas from the reaction chamber for testing, causing changes in the gas pressure within the chamber. Fixing the top surface of the translucent material layer 120 to the top surface of the housing frame 110, while allowing the other five surfaces to be freely positioned, allows the translucent material layer 120 to collapse and deform inwards as the pressure inside and outside the reaction chamber changes during the gas extraction phase of the experiment. This ensures consistent gas pressure inside and outside the reaction chamber, improving the accuracy of the test results. It also prevents the problem of the actual extraction volume differing from the set extraction volume during long-term experiments if all six surfaces are fixed to the housing frame 110, thus affecting the test results.

[0050] In one feasible implementation, refer to Figure 9 and combined Figure 1 and Figure 7 As shown, the ultraviolet lamp 231 includes a lamp holder and a lamp tube, the dimming ballast 232 has a power connection port, a lamp tube connection port and a signal connection port, and the stepless dimming knob 233 has a power connection port and a signal connection port.

[0051] The lamp holder is fixed to the inner wall of the outer casing 200, and the lamp tube is inserted into the lamp holder. The dimming ballast 232 is fixed to the inner wall of the outer casing 200. The power connector of the dimming ballast 232 is electrically connected to the power supply 234, the lamp tube connector of the dimming ballast 232 is electrically connected to the lamp holder, and the signal connector of the dimming ballast 232 is electrically connected to the signal connector of the stepless dimming knob 233. The stepless dimming knob 233 is fixed to the outer wall of the outer casing 200, and its power connector is electrically connected to the power supply 234.

[0052] The lamp tube has ceramic or plastic lamp holders at both ends, with electrodes installed inside the lamp holders. The lamp holder is fixed to the inner wall of the outer casing 200 with screws, and the lamp holder has a slot that matches the lamp holder. The lamp holder is directly inserted into the slot of the lamp holder, thus fixing the UV lamp 231 to the inner wall of the outer casing 200. The dimming ballast 232 is mounted on the inner wall next to the lamp holder with screws. The stepless dimming knob 233 is fixed to the outer wall of the outer casing 200. The power supply 234 is located outside the outer casing 200.

[0053] The dimming ballast 232 has three sets of terminals, with two terminals in each set: a lamp terminal for connecting to the positive and negative terminals of the lamp holder, a power terminal (AC) for connecting to the power supply, and a signal terminal (D) for receiving dimming signals. The stepless dimming knob 233 has two sets of terminals, with two terminals in each set: a signal terminal (D) for connecting to the dimming ballast 232 to transmit dimming signals, and a power terminal (AC) for connecting to the power supply. The power supply 234 has two terminals, L and N, used to provide power to the stepless dimming knob 233 and the dimming ballast 232.

[0054] The lamp holders of each UV lamp 231 are electrically connected to the positive and negative lamp terminals of the corresponding dimming ballast 232 via single-core hard copper wires. The two signal line interfaces of each dimming ballast 232 are electrically connected to the two corresponding signal line interfaces of the stepless dimming knob 233 via single-core hard copper wires. The two power terminals of each dimming ballast 232 and the two power terminals of the stepless dimming knob 233 are connected in parallel to the power supply 234 to form a circuit path.

[0055] In this embodiment, the ultraviolet lamp 231, the dimming ballast 232, the stepless dimming knob 233, and the power supply 234 are all electrically connected by a single-core hard copper wire, which is convenient for connection and facilitates stable and reliable signal transmission.

[0056] In one feasible implementation, refer to Figure 8 As shown, the reaction chamber 100 has a box frame 110 consisting of an aluminum-assembled cuboid frame, and a light-transmitting material layer 120 consisting of a polytetrafluoroethylene (PTFE) film located within the cuboid frame, with the top surface of the PTFE film clamped to the top of the cuboid frame.

[0057] The box frame 110 can be assembled from multiple aluminum materials into a small-volume three-dimensional frame, and the outer frame 210 of the outer cover box 200 can be assembled from multiple aluminum materials into a large-volume three-dimensional frame, which makes it convenient to place the reaction box 100 inside the outer cover box 200.

[0058] The polytetrafluoroethylene (PTFE) film can be installed on top of the cuboid frame using a clamping method. PTFE film is a chemically and physically stable polymer material with good light transmittance and is not easily reactive with other substances. On the one hand, it can improve light transmittance, allowing more ultraviolet light to pass through into the reaction chamber; on the other hand, its low adsorption properties can reduce wall loss of various substances, thereby improving the reliability of the detection results.

[0059] In one feasible implementation, refer to Figure 8 As shown, the first gas exchange port 121 and the second gas exchange port 122 are respectively located on two opposite sides of the reaction chamber 100. Each gas exchange port includes a mounting plate and an exchange port. The mounting plate is fixed on the light-transmitting material layer 120, and several exchange ports for inserting gas hoses and communicating with the interior of the sealed reaction chamber are opened on the mounting plate.

[0060] The reaction chamber 100 is equipped with a turbulence fan (not shown) for stirring the gas.

[0061] In some cases, the first gas exchange port 121 and the second gas exchange port 122 may also be respectively located on the sides of two adjacent reaction chambers 100.

[0062] In this embodiment, each gas exchange port is provided with 4-6 exchange ports. The gas hose fits tightly with the exchange port, with one end passing through the exchange port and extending into the reaction chamber, and the other end extending out of the outer casing 200 for connecting to the corresponding equipment.

[0063] The multiple exchange ports of the first gas exchange port 121 can be connected to different gas inlet devices via gas hoses, enabling simultaneous sample injection and shortening the gas inlet time. Alternatively, some exchange ports can be connected to detection equipment for gas extraction and analysis.

[0064] The internal turbulence fan of the reaction chamber 100 can turbulentize the gas, ensuring that the gas inside the reaction chamber 100 is fully mixed after it enters. This facilitates continuous gas extraction and analysis through the detection equipment at the gas exchange port of the reaction chamber 100 until the end of the experiment.

[0065] One of the multiple exchange ports of the second gas exchange port 122 is used to connect to a vacuum pump, which is used to evacuate the reaction chamber 100 at the end of the experiment and allow clean air from the inlet side of the first gas exchange port 121 to enter the reaction chamber 100, thereby cleaning the reaction chamber 100. The other exchange ports of the second gas exchange port 122 can be connected to detection equipment, enabling multiple detection devices to simultaneously perform evacuation and analysis.

[0066] In one feasible implementation, the side walls and top walls of the outer casing 200 are provided with multiple sets of ultraviolet lamps 231 and dimming ballasts 232.

[0067] Understandably, the installation location and quantity of the UV lamp 231 and the dimming ballast 232 can be set according to the actual situation.

[0068] In one feasible implementation, refer to Figures 1-7 As shown, the outer casing 200 includes an outer frame 210, an insulation layer 211, and a reflective layer 212. The insulation layer 211 is embedded in the outer frame 210, and the reflective layer 212 is attached to the inner side of the outer casing 200.

[0069] The insulation layer 211 can be made of engineering composite material and is installed on the outside of the outer casing 200 to reduce the influence of the external environment on the temperature of the reaction chamber 100. The reflective layer 212 can be made of reflective stickers and is attached to the inside of the outer casing 200 to improve the uniformity and stability of the ultraviolet light intensity inside the reaction chamber 100.

[0070] In one feasible implementation, refer to Figures 1-4 As shown, the side wall of the outer casing 200 corresponding to the gas exchange port is configured as a rotatable side wall 220. The rotatable side wall 220 is hinged to the side wall of the adjacent outer casing 200, and a connection interface 221 for passing through a gas hose is provided on the rotatable side wall 220.

[0071] The rotatable sidewall 220 can be hinged to the sidewall of the outer casing 200 via a hinge or similar structure. The rotatable sidewall 220 can be configured as a single-door structure hinged to one of the adjacent sidewalls, or as a double-door structure hinged to two adjacent sidewalls. Considering the latter double-door structure, the ultraviolet lamp 231 and the dimming ballast 232 can be installed only on the two relatively non-rotating sidewalls and the top wall.

[0072] In one feasible implementation, the housing frame 110 of the reaction chamber 100 is provided with support legs 111, and the support legs 111 are provided with a moving device for entering and exiting the outer casing 200.

[0073] The moving device of the outrigger 111 can be a roller structure or a slide rail structure.

[0074] In this way, the reaction chamber 100 can move in and out of the outer casing 200. When the reaction chamber 100 is outside the outer casing 200, experiments can be conducted under natural light. When the reaction chamber 100 is inside the outer casing 200, experiments can be conducted by adjusting the light intensity of the ultraviolet lamp 231 to simulate natural light.

[0075] In one feasible implementation, the reaction chamber 100 is disposed on the ground, and the outer casing 200 is configured as a structure consisting of side walls and a top wall.

[0076] In this way, the ground can be used directly as part of the outer casing 200, omitting the bottom wall of the outer casing 200, simplifying the structure of the entire equipment and making it easier to assemble the equipment.

[0077] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" in the description of this application should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0078] The terms “upper,” “lower,” “front,” “back,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.

[0079] The term "multiple" means two or more, unless otherwise specified precisely.

[0080] The terms “first,” “second,” “third,” “fourth,” etc., (if present) are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can include implementations in sequences other than those illustrated or described herein.

[0081] The terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A UV light intensity adjustable smoke box, characterized in that, Includes the reaction chamber and the outer casing; The reaction chamber includes a frame and a light-transmitting material layer. The light-transmitting material layer is enclosed within the frame to form a sealed reaction chamber. The light-transmitting material layer is fixed to the top surface of the frame and is freely disposed relative to the sides and bottom surface of the frame. The light-transmitting material layer is provided with a first gas exchange port and a second gas exchange port that communicate with the interior of the sealed reaction chamber. The outer enclosure is installed outside the reaction chamber. Multiple pairs of ultraviolet lamps and dimming ballasts are installed on the inner wall of the outer enclosure. A stepless dimming knob and a power supply are installed on the outer side of the outer enclosure. Each ultraviolet lamp is electrically connected to the corresponding dimming ballast. Each dimming ballast is electrically connected to the stepless dimming knob. The stepless dimming knob and each dimming ballast are electrically connected to the power supply.

2. The UV light intensity adjustable smoke box according to claim 1, wherein, The ultraviolet lamp includes a lamp holder and a lamp tube, the dimming ballast has a power connection port, a lamp tube connection port and a signal connection port, and the stepless dimming knob has a power connection port and a signal connection port. The lamp holder is fixed to the inner wall of the outer casing, and the lamp tube is inserted into the lamp holder; the dimming ballast is fixed to the inner wall of the outer casing, the power terminal of the dimming ballast is electrically connected to the power source, the lamp tube terminal of the dimming ballast is electrically connected to the lamp holder, and the signal terminal of the dimming ballast is electrically connected to the signal terminal of the stepless dimming knob; the stepless dimming knob is fixed to the outer wall of the outer casing, and the power terminal of the stepless dimming knob is electrically connected to the power source.

3. The UV light intensity adjustable smoke box of claim 2, wherein, The ultraviolet lamp, the dimming ballast, the stepless dimming knob, and the power supply are all electrically connected via a single-core hard copper wire.

4. The UV light intensity adjustable smoke box according to any one of claims 1-3, characterized in that, The reaction chamber's frame includes an aluminum-assembled cuboid frame, and the light-transmitting material layer includes a polytetrafluoroethylene (PTFE) film. The PTFE film is located within the cuboid frame, and its top surface is clamped to the top of the cuboid frame.

5. The UV light intensity adjustable smoke box according to any one of claims 1-3, characterized in that, The first gas exchange port and the second gas exchange port are respectively located on two opposite sides of the reaction chamber; each gas exchange port includes a mounting plate and an exchange port, the mounting plate is fixed on the light-transmitting material layer, and the mounting plate has several exchange ports for inserting gas hoses and communicating with the interior of the sealed reaction chamber. The reaction chamber is equipped with a turbulence fan for stirring the gas.

6. The UV light intensity adjustable smoke box according to any one of claims 1-3, wherein, The outer casing is equipped with multiple sets of ultraviolet lamps and dimming ballasts on its side walls and top walls.

7. The UV light intensity adjustable smoke box according to any one of claims 1-3, wherein, The outer casing includes an outer frame, an insulation layer, and a reflective layer. The insulation layer is embedded in the outer frame, and the reflective layer is applied to the inner side of the outer casing.

8. The UV light intensity adjustable smoke box according to any one of claims 1-3, wherein, The side wall of the outer casing corresponding to the gas exchange port is configured as a rotatable side wall, which is hinged to the side wall of the adjacent outer casing, and the rotatable side wall is provided with a connection interface for the gas hose to pass through.

9. The UV light intensity adjustable smoke box according to any one of claims 1-3, wherein, The reaction chamber frame is provided with support legs, and the support legs are provided with a moving device for entering and exiting the outer casing.

10. The UV light intensity adjustable smoke box according to any one of claims 1-3, wherein, The reaction chamber is located on the ground, and the outer casing is a structure consisting of side walls and a top wall.

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