Ozone in-vitro experiment exposure device

Abstract

The utility model discloses an exposure device for an ozone in-vitro experiment. The exposure device comprises an experiment table, an exposure cabin and a contrast cabin, an extension plate is fixedly installed at the top end of the experiment table, electric telescopic rods are fixedly installed on the two sides of the extension plate in a penetrating mode, an upper cabin cover used for conducting attached sealing on openings in the upper ends of the exposure cabin and the contrast cabin is fixedly installed at the bottoms of the electric telescopic rods, and limiting sliding rods are fixedly installed on the two sides of the upper end of the upper cabin cover; an exhaust port is fixedly formed in the outer side of the upper cabin cover in a penetrating mode, an ozone catalytic decomposer used for decomposing ozone is fixedly installed on the rear side of the upper end of the experiment table, vertical limiting tables are fixedly installed on the inner sides of the exposure cabin and the contrast cabin, and the front ends of the vertical limiting tables are connected with sample frames in a magnetic attraction mode; a stainless steel grid for placing an experimental sample is fixedly mounted at the front end of the sample rack. The ozone contrast exposure experiment can be conveniently carried out through the exposure cabin and the contrast cabin, and the comparability of experiment conditions is ensured.

Description

Technical Field

[0001] This utility model relates to the field of environmental science and biomedical experimental equipment, specifically an ozone in vitro experimental exposure device. Background Technology

[0002] Ozone (O3), as a strong oxidizing gas, is widely used in the following fields:

[0003] Environmental Science: Simulating the toxic effects of air pollution on organisms (such as plants, animals, and humans), and studying the correlation between increased ozone concentrations and respiratory diseases and crop yield reduction. Materials Science: Evaluating the aging behavior of polymer materials such as rubber, plastics, and coatings under ozone conditions to guide the development of weather-resistant materials. Biomedicine: Investigating the mechanisms of oxidative stress damage to cells (such as lung epithelial cells and keratinocytes) caused by ozone, providing a basis for the safety evaluation of ozone therapy. Industrial Applications: Testing the ozone removal efficiency of equipment such as air purifiers and automotive air conditioning filters to verify product performance.

[0004] However, in practical applications, traditional ozone in vitro experimental exposure devices typically consist of a single chamber. A single chamber can only employ a single-chamber, multi-exposure mode (exposing the control group first, then the control group). This mode is prone to interference from environmental variables, such as fluctuations in parameters like temperature, humidity, and gas flow rate between experiments (e.g., the diurnal temperature difference causing a ±10% RH change in laboratory humidity). This can easily lead to systematic errors. Furthermore, multi-exposure requires repeated parameter settings, increasing the time consumption by more than 50%, thus affecting experimental efficiency. Utility Model Content

[0005] The purpose of this invention is to provide an ozone in vitro experimental exposure device to solve the problem mentioned in the background art. Traditional ozone in vitro experimental exposure devices usually consist of a single chamber. A single chamber can only adopt a single-chamber, multi-exposure mode (exposure group first, then control group). This mode is prone to interference from environmental variables, such as fluctuations in parameters like temperature, humidity, and gas flow rate between two experiments (e.g., the diurnal temperature difference causes a change in laboratory humidity of ±10% RH), which can easily cause systematic errors. At the same time, multi-exposure requires repeated parameter setting, which increases the time by more than 50%, thus affecting the experimental efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution: including an experimental table, an exposure chamber, and a control chamber;

[0007] An extension plate is fixedly installed at the top of the experimental platform. Electric telescopic rods are fixedly installed through both sides of the extension plate. An upper chamber cover for sealing the openings at the top of the exposure chamber and control chamber is fixedly installed at the bottom of the electric telescopic rods. Limiting sliding rods are fixedly installed on both sides of the upper end of the upper chamber cover. An exhaust port is fixedly installed through the outer side of the upper chamber cover. An ozone catalytic decomposer for decomposing ozone is fixedly installed at the rear of the upper end of the experimental platform. A vertical limiting stage is fixedly installed inside the exposure chamber and control chamber. A sample rack is magnetically connected to the front end of the vertical limiting stage. A stainless steel mesh for placing experimental samples is fixedly installed at the front end of the sample rack. An ozone concentration monitoring sensor for monitoring ozone inside the exposure chamber is fixedly installed through the side of the exposure chamber.

[0008] The experimental platform includes an ozone generator, a clean air filter, and a mixing chamber, which are fixedly installed at the top. A stirring motor is fixedly installed at the rear end of the mixing chamber. A stirring shaft is fixedly installed on the front drive shaft of the stirring motor, and a spiral mixing blade is installed at the front end of the stirring shaft.

[0009] Preferably, the outer sides of the exposure chamber and the control chamber are respectively fixedly connected to an exposure air inlet and a control air inlet, and the front ends of the exposure chamber and the control chamber are respectively fixedly installed with transparent through windows, and the exposure chamber and the control chamber are respectively fixedly installed on the upper end of the experimental table.

[0010] Preferably, the upper end of the limiting slide rod is movably connected to both sides of the extension plate, and the front and rear sides of the upper end of the upper cover are respectively fixedly installed with temperature sensors and humidity sensors for stabilizing and monitoring the humidity inside the exposure chamber and the control chamber.

[0011] Preferably, an induced draft fan is fixedly installed inside the exhaust port, and a switch valve is fixed at the opening on the outside of the exhaust port. The ozone catalytic decomposer is connected to the exhaust port through a connecting pipe.

[0012] Preferably, gas flow meters are fixedly installed at the outlets of the ozone generator and the clean air filter, and the outlet of the ozone generator is connected to the mixing chamber through a pipe.

[0013] Preferably, the outlet of the clean air filter is connected by pipes to the mixing chamber and the control air inlet, respectively.

[0014] Preferably, the mixing chamber is fixedly connected to a mixing outlet at its front end, and the mixing outlet is connected to an exposed air inlet via a pipe.

[0015] Preferably, the stirring shaft is rotatably connected to the rear end of the mixing chamber via a rotating shaft.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] When the electric telescopic rod retracts, it causes the upper cover to move upward in a straight line. When the upper cover moves upward in a straight line, it opens the exposure chamber and the control chamber. When the exposure chamber and the control chamber are open, the sample to be tested is placed on the upper end of the stainless steel grid. When the sample to be tested is placed on the upper end of the stainless steel grid, the electric telescopic rod is extended. When the electric telescopic rod extends, it causes the upper cover to seal the exposure chamber and the control chamber, thereby facilitating the opening and closing of the exposure chamber and the control chamber.

[0018] This invention also allows for the separate introduction of ozone and clean air into a mixing chamber after the exposure chamber and control chamber are sealed. Ozone and clean air are then discharged into the mixing chamber via an ozone generator and a clean air filter. Simultaneously, a stirring motor is activated, driving a spiral mixing blade to rotate. This rotation uniformly dilutes and mixes the ozone and clean air. The diluted ozone is then discharged into the exposure chamber through the exposure outlet and into the exposure inlet. Meanwhile, clean air is discharged into the control chamber via the clean air filter. This ensures that the test samples in the exposure and control chambers are exposed to ozone and clean air respectively, facilitating ozone exposure experiments through the two chambers and ensuring comparability of experimental conditions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an ozone in vitro experimental exposure device according to this utility model. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the overall structure of an ozone in vitro experimental exposure device according to this utility model. Figure 2 ;

[0021] Figure 3 This is a schematic diagram of the opening of the upper hatch of this utility model;

[0022] Figure 4 This is a partial structural schematic diagram of an ozone in vitro experimental exposure device according to the present invention.

[0023] In the diagram: 1. Experimental bench; 2. Exposure chamber; 201. Exposure air inlet; 3. Control chamber; 301. Control air inlet; 4. Extension plate; 5. Electric telescopic rod; 6. Upper cover; 7. Limiting slide bar; 8. Exhaust port; 9. Ozone catalytic decomposer; 10. Vertical limiting stage; 11. Sample rack; 12. Stainless steel mesh; 13. Ozone concentration monitoring sensor; 14. Ozone generator; 15. Clean air filter; 16. Mixing chamber; 1601. Mixing outlet; 17. Stirring motor; 18. Stirring shaft; 19. Spiral mixing blade. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a technical solution for an ozone in vitro experimental exposure device: it includes an experimental table 1, an exposure chamber 2 and a control chamber 3, and the outer sides of the exposure chamber 2 and the control chamber 3 are respectively fixedly connected to an exposure air inlet 201 and a control air inlet 301, and the front ends of the exposure chamber 2 and the control chamber 3 are respectively fixedly installed with transparent through windows.

[0026] Exposure chamber 2 and control chamber 3 are fixedly installed on the upper part of experimental platform 1. An extension plate 4 is fixedly installed at the top of experimental platform 1. Electric telescopic rods 5 are fixedly installed through both sides of the extension plate 4. An upper cover 6 for sealing the upper openings of exposure chamber 2 and control chamber 3 is fixedly installed at the bottom of the electric telescopic rods 5. Limiting slide rods 7 are fixedly installed on both sides of the upper end of the upper cover 6, and the upper ends of the limiting slide rods 7 are movably connected through both sides of the extension plate 4, so that the upper cover 6 can be vertically and linearly limited by the limiting slide rods 7. Temperature sensors and humidity sensors for stabilizing and monitoring the humidity inside exposure chamber 2 and control chamber 3 are fixedly installed through the front and rear sides of the upper end of the upper cover 6, respectively. An exhaust port is fixedly installed through the outer side of the upper cover 6. 8. An exhaust fan is fixedly installed inside the exhaust port 8, and a switch valve is fixedly installed at the opening on the outside of the exhaust port 8. An ozone catalytic decomposer 9 for decomposing ozone is fixedly installed on the rear side of the upper end of the experimental platform 1, and the ozone catalytic decomposer 9 is connected to the exhaust port 8 through a connecting pipe. A vertical limiting platform 10 is fixedly installed inside the exposure chamber 2 and the control chamber 3. A sample rack 11 is magnetically connected to the front end of the vertical limiting platform 10. A stainless steel mesh 12 for placing experimental samples is fixedly installed at the front end of the sample rack 11, so that the sample rack 11 and the stainless steel mesh 12 can be easily disassembled and cleaned through the magnetic connection. An ozone concentration monitoring sensor 13 for monitoring the ozone inside the exposure chamber 2 is fixedly installed through the side end of the exposure chamber 2.

[0027] The experimental platform 1 includes an ozone generator 14, a clean air filter 15, and a mixing chamber 16, all fixedly installed at the top. Gas flow meters are fixedly installed at the outlets of the ozone generator 14 and the clean air filter 15, respectively, to monitor the flow rate at their outlets. The outlet of the ozone generator 14 is connected to the mixing chamber 16 via a pipe, allowing the ozone generated by the ozone generator 14 to be discharged into the mixing chamber 16. The outlet of the clean air filter 15 is also connected to the mixing chamber via pipes. The mixing chamber 16 is connected to the control air inlet 301, so that clean air is discharged into the mixing chamber 16 and the control chamber 3 respectively through the clean air filter 15. The mixing chamber 16 is fixedly connected to the front end of the mixing chamber 16 and the mixing air outlet 1601 is connected to the exposed air inlet 201 through the pipe. The mixing chamber 16 is fixedly installed at the rear end of the mixing chamber 16. The front drive shaft of the mixing motor 17 is fixedly installed with the stirring shaft 18, and the stirring shaft 18 is rotatably connected to the rear end of the mixing chamber 16 through the rotating shaft. The front end of the stirring shaft 18 is equipped with a spiral mixing blade 19.

[0028] Working principle: In use, this utility model retracts by controlling the opening of the electric telescopic rod 5. When the electric telescopic rod 5 retracts, it drives the upper cover 6 to move upward in a straight line. When the upper cover 6 moves upward in a straight line, it opens the exposure chamber 2 and the control chamber 3. When the exposure chamber 2 and the control chamber 3 are open, the sample to be tested is placed on the upper end of the stainless steel grid 12. When the sample to be tested is placed on the upper end of the stainless steel grid 12, the electric telescopic rod 5 is extended by controlling it. When the electric telescopic rod 5 extends, it drives the upper cover 6 to seal the exposure chamber 2 and the control chamber 3, thereby facilitating the opening and closing of the exposure chamber 2 and the control chamber 3.

[0029] After the exposure chamber 2 and the control chamber 3 are sealed, the ozone generator 14 and the clean air filter 15 are turned on to discharge ozone and clean air into the mixing chamber 16 respectively. When the ozone and clean air are discharged into the mixing chamber 16, the stirring motor 17 is turned on. When the stirring motor 17 is turned on, it will drive the spiral mixing blade 19 to rotate through the stirring shaft 18. When the spiral mixing blade 19 rotates, it will uniformly dilute and mix the ozone and clean air. At the same time, the diluted and mixed ozone is discharged into the exposure chamber 2 through the mixing outlet 1601 along the exposure inlet 201. The clean air filter 15 is turned on to discharge clean air into the control chamber 3. This allows the test samples in the exposure chamber 2 and the control chamber 3 to be exposed to ozone and clean air respectively, thereby facilitating ozone control exposure experiments through the exposure chamber 2 and the control chamber 3 and ensuring the comparability of experimental conditions.

[0030] Meanwhile, after the control experiment is completed, the residual ozone inside the exposure chamber 2 is discharged into the ozone catalytic decomposer 9 through the exhaust port 8. When the residual ozone is discharged into the ozone catalytic decomposer 9, the residual ozone can be decomposed by the ozone catalytic decomposer 9.

[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ozone in vitro experimental exposure device, characterized in that: It includes an experimental table (1), an exposure chamber (2), and a control chamber (3); An extension plate (4) is fixedly installed at the top of the experimental table (1). Electric telescopic rods (5) are fixedly installed through both sides of the extension plate (4). An upper cover (6) for sealing the upper openings of the exposure chamber (2) and the control chamber (3) is fixedly installed at the bottom of the electric telescopic rods (5). Limiting slide rods (7) are fixedly installed on both sides of the upper end of the upper cover (6). An exhaust port (8) is fixedly installed through the outer side of the upper cover (6). The upper rear side of the experimental table (1) is fixedly equipped with... An ozone catalytic decomposer (9) for decomposing ozone is provided. A vertical limiting stage (10) is fixedly installed inside the exposure chamber (2) and the control chamber (3). A sample rack (11) is magnetically connected to the front end of the vertical limiting stage (10). A stainless steel mesh (12) for placing experimental samples is fixedly installed at the front end of the sample rack (11). An ozone concentration monitoring sensor (13) for monitoring ozone inside the exposure chamber (2) is fixedly installed through the side end of the exposure chamber (2). The experimental platform (1) is equipped with an ozone generator (14), a clean air filter (15), and a mixing chamber (16) fixedly installed at the top. A stirring motor (17) is fixedly installed at the rear end of the mixing chamber (16). A stirring shaft (18) is fixedly installed on the front drive shaft of the stirring motor (17). A spiral mixing blade (19) is installed at the front end of the stirring shaft (18).

2. The ozone in vitro experimental exposure device according to claim 1, characterized in that: The outer sides of the exposure chamber (2) and the control chamber (3) are respectively fixedly connected to the exposure air inlet (201) and the control air inlet (301). The front ends of the exposure chamber (2) and the control chamber (3) are respectively fixedly installed with transparent through windows. The exposure chamber (2) and the control chamber (3) are respectively fixedly installed on the upper end of the experimental table (1).

3. The ozone in vitro experimental exposure device according to claim 2, characterized in that: The upper end of the limiting slide bar (7) is connected to both sides of the extension plate (4) through and fitting. Temperature sensors and humidity sensors for stabilizing and monitoring the humidity inside the exposure chamber (2) and the control chamber (3) are respectively fixedly installed through the front and rear sides of the upper end of the upper cover (6).

4. The ozone in vitro experimental exposure device according to claim 3, characterized in that: An induced draft fan is fixedly installed inside the exhaust port (8), and a switch valve is fixed at the opening on the outside of the exhaust port (8). The ozone catalytic decomposer (9) is connected to the exhaust port (8) through a connecting pipe.

5. The ozone in vitro experimental exposure device according to claim 4, characterized in that: Gas flow meters are fixedly installed at the outlets of the ozone generator (14) and the clean air filter (15), respectively. The outlet of the ozone generator (14) is connected to the mixing chamber (16) through a pipe.

6. The ozone in vitro experimental exposure device according to claim 5, characterized in that: The outlet of the clean air filter (15) is connected by pipes to the mixing chamber (16) and the control air inlet (301), respectively.

7. The ozone in vitro experimental exposure device according to claim 6, characterized in that: The mixing chamber (16) is fixedly connected to a mixing outlet (1601) at its front end, and the mixing outlet (1601) is connected to an exposed air inlet (201) through a pipe.

8. The ozone in vitro experimental exposure device according to claim 7, characterized in that: The stirring shaft (18) is rotatably connected to the rear end of the mixing chamber (16) via a rotating shaft.

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