Tail gas treatment device capable of being used for automatic smoking machine

Abstract

The utility model relates to a tail gas treatment device capable of being used for an automatic smoking machine, which comprises an aerosol tail gas absorption box, and a buffer tank, a first absorption tank, a second absorption tank, a third absorption tank and a solid absorption tank are arranged in the aerosol tail gas absorption box. The buffer tank, the first absorption tank, the second absorption tank, the third absorption tank and the solid adsorption tank are sequentially connected through a first exhaust pipe, a second exhaust pipe, a third exhaust pipe and a fourth exhaust pipe respectively. The buffer tank is provided with an air inlet pipe, the solid adsorption tank is provided with an air outlet pipe, an aerosol detection sensor and a three-way electromagnetic valve are sequentially arranged on the air outlet pipe, and one air outlet of the three-way electromagnetic valve is connected with the buffer tank through an air return pipe. The aerosol detection sensor and the three-way electromagnetic valve are electrically connected with the controller. According to the utility model, the problem that the tail gas treatment efficiency is low when the existing automatic smoking machine is used for carrying out an electronic cigarette smoking test is solved, and the tail gas purification effect of the automatic smoking machine is improved.

Description

Technical Field

[0001] This utility model relates to the field of aerosol exhaust gas treatment, and in particular to an exhaust gas treatment device that can be used in automatic smoking machines. Background Technology

[0002] Globally, the hazard assessment and control of tobacco products has become an important issue in the field of public health. To more accurately assess the harms of smoking tobacco products, automatic smoking machines, as devices that simulate the smoking process, are widely used in tobacco scientific research and tobacco product evaluation. Automatic smoking machines can simulate the inhalation and exhalation of smokers. When connected to traditional cigarettes or new tobacco products (such as e-cigarettes), they can generate aerosol smoke for subsequent aerosol capture and analysis. However, during the operation of automatic smoking machines, the exhaust gas produced contains various harmful components, such as nicotine, tar, volatile organic compounds (VOCs), organic acids, and heavy metal impurities. These harmful components pose potential threats to the environment and human health. Currently, the commonly used exhaust gas treatment methods for automatic smoking machines are condensation and ethanol absorption, which have low treatment efficiency and leave residual harmful substances released into the atmosphere, causing significant environmental pollution. Utility Model Content

[0003] The present invention aims to provide an exhaust gas treatment device that can be used in automatic smoking machines to solve the problem mentioned in the background art that the exhaust gas treatment efficiency of automatic smoking machines during suction tests is low and causes significant environmental pollution.

[0004] Specifically, this utility model discloses an exhaust gas treatment device that can be used in automatic smoking machines, and the technical solution is as follows:

[0005] An exhaust gas treatment device for an automatic smoking machine includes an aerosol exhaust gas absorption box (1), an aerosol detection sensor (13), a three-way solenoid valve, and a controller. The aerosol exhaust gas absorption box (1) is characterized by having a buffer tank (2), several absorption tanks, and a solid adsorption tank (6) connected sequentially via an exhaust pipe. The buffer tank (2) is equipped with an inlet pipe (7), and the solid adsorption tank (6) is equipped with an outlet pipe (12). An aerosol detection sensor (13) and a three-way solenoid valve (14) are sequentially mounted on the outlet pipe (12). One outlet of the three-way solenoid valve (14) is connected to the buffer tank (2) via a return pipe (16). The aerosol detection sensor (13) and the three-way solenoid valve (14) are electrically connected to the controller (15).

[0006] Furthermore, the absorption tank is divided into a first absorption tank (3), a second absorption tank (4), and a third absorption tank (5), and the buffer tank (2), the first absorption tank (3), the second absorption tank (4), the third absorption tank (5), and the solid adsorption tank (6) are connected in sequence through a first exhaust pipe (8), a second exhaust pipe (9), a third exhaust pipe (10), and a fourth exhaust pipe (11), respectively.

[0007] Furthermore, the buffer tank (2), the first absorption tank (3), the second absorption tank (4), the third absorption tank (5) and the solid adsorption tank (6) can be disassembled and separated from the aerosol tail gas absorption box (1) to facilitate the replacement of the absorbent material.

[0008] Furthermore, the air inlet ends of the first exhaust pipe (8), the second exhaust pipe (9), the third exhaust pipe (10) and the fourth exhaust pipe (11) are located at the top of the corresponding buffer tank and the absorption tank, respectively, and the air outlet ends are located at the bottom of the corresponding absorbent liquid and the adsorbent, respectively.

[0009] Optionally, the absorbent in the first absorption tank (3) may be dimethyl sulfoxide, chloroform, petroleum ether and acetone; preferably, the absorbent in the first absorption tank (3) is dimethyl sulfoxide.

[0010] Optionally, the absorbent in the second absorption tank (4) may be a 75% ethanol solution and an acidic potassium permanganate solution.

[0011] Optionally, the absorbent in the third absorption tank (5) may be a sodium hydroxide solution or a potassium hydroxide solution.

[0012] Optionally, the adsorbent in the solid adsorption tank (6) may be activated carbon and diatomaceous earth.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] (1) By using different absorbent liquids and adsorbents to absorb impurities in the exhaust gas of the automatic smoking machine, the exhaust gas treatment efficiency is improved.

[0015] (2) By installing an aerosol detection sensor at the outlet, it is ensured that the exhaust gas does not contain harmful aerosol impurities, thus improving the safety of exhaust gas emissions. Attached Figure Description

[0016] Figure 1 This is a front structural diagram of an embodiment of the present utility model.

[0017] Figure 2 This is a front cross-sectional view of an embodiment of the present invention.

[0018] Figure 3 This is a system block diagram of the present invention.

[0019] In the diagram: 1. Aerosol exhaust gas absorption box; 2. Buffer tank; 3. First absorption tank; 4. Second absorption tank; 5. Third absorption tank; 6. Solid adsorption tank; 7. Inlet pipe; 8. First exhaust pipe; 9. Second exhaust pipe; 10. Third exhaust pipe; 11. Fourth exhaust pipe; 12. Outlet pipe; 13. Aerosol detection sensor; 14. Three-way solenoid valve; 15. Controller; 16. Return pipe. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments, so as to fully understand the purpose, features and effects of the present utility model. 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.

[0021] In the description of the embodiments of this utility model, if directional descriptions are involved, such as "up", "down", "front", "back", "left", "right" etc., indicating the directional or positional relationship, they are based on the directional or positional relationship shown in the drawings. They are only for the convenience of describing this utility model 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 utility model.

[0022] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] like Figure 1-3As shown, one embodiment of this utility model provides an exhaust gas treatment device for automatic smoking machines, comprising an aerosol exhaust gas absorption box 1, which contains a detachable buffer tank 2, a first absorption tank 3, a second absorption tank 4, a third absorption tank 5, and a solid adsorption tank 6. The buffer tank 2, first absorption tank 3, second absorption tank 4, third absorption tank 5, and solid adsorption tank 6 are sequentially connected via a first exhaust pipe 8, a second exhaust pipe 9, a third exhaust pipe 10, and a fourth exhaust pipe 11, respectively. The inlet end of the exhaust pipe is located at the top of the corresponding buffer tank and absorption tank, and the outlet end is located at the bottom of the corresponding absorbent liquid and adsorbent, respectively. The absorbent liquid in the first absorption tank 3 is dimethyl sulfoxide, the absorbent liquid in the second absorption tank 4 is an acidic potassium permanganate solution with pH=3, the absorbent liquid in the third absorption tank 5 is a 10% sodium hydroxide solution, and the adsorbent in the solid adsorption tank is diatomaceous earth powder.

[0024] The buffer tank 2 is equipped with an air inlet pipe 7, and the solid adsorption tank 6 is equipped with an air outlet pipe 12. An aerosol detection sensor 13 and a three-way solenoid valve 14 are sequentially installed on the air outlet pipe 12. One of the air outlets of the three-way solenoid valve 14 is connected to the buffer tank 2 through a return air pipe 16. The aerosol detection sensor 13 and the three-way solenoid valve 14 are electrically connected to the controller 15.

[0025] Working Principle: Connect the exhaust port of the automatic smoking machine to the air inlet pipe 7. Turn on the controller 15. When the automatic smoking machine starts working, the exhaust gas containing aerosol enters the aerosol exhaust gas absorption box 1. The exhaust gas passes through the buffer tank 2 and the first exhaust pipe 8 and then enters the first absorption tank 3. Most of the organic compound impurities in the exhaust gas dissolve in the dimethyl sulfoxide absorbent. Then, the exhaust gas enters the second absorption tank 4 through the second exhaust pipe 9. The remaining organic compound impurities and metal ion impurities in the exhaust gas are oxidized and absorbed by the acidic potassium permanganate solution. Subsequently, the slightly acidic exhaust gas enters the third absorption tank 5 through the third exhaust pipe 10. The acidic exhaust gas is neutralized by the sodium hydroxide solution. Finally, the exhaust gas enters the solid adsorption tank 6 through the fourth exhaust pipe 11. The remaining impurities are adsorbed by the solid adsorbent. The purified exhaust gas enters the exhaust pipe 12. An aerosol detection sensor 13 and a three-way solenoid valve 14 are installed on the exhaust pipe 12, and both are electrically connected to the controller 15. When the aerosol detection sensor 13 does not detect the presence of aerosols in the exhaust gas, the controller 15 controls the three-way solenoid valve 14 to connect the exhaust pipe 12 to the atmosphere, and the purified exhaust gas can be discharged into the atmosphere; when the aerosol detection sensor 13 detects the presence of aerosols in the exhaust gas, the controller 15 controls the three-way solenoid valve 14 to connect the exhaust pipe 12 to the return pipe 16, and the exhaust gas enters the buffer tank through the return pipe for absorption and adsorption operations again.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tail gas treatment device for automatic smoking machines, comprising an aerosol tail gas absorption box (1), an aerosol detection sensor (13), a three-way solenoid valve, and a controller, characterized in that: The aerosol exhaust gas absorption box (1) is equipped with a buffer tank (2), several absorption tanks and a solid adsorption tank (6), which are connected in sequence through an exhaust pipe; wherein, the buffer tank (2) is equipped with an air inlet pipe (7), the solid adsorption tank (6) is equipped with an air outlet pipe (12), and an aerosol detection sensor (13) and a three-way solenoid valve (14) are sequentially installed on the air outlet pipe (12), and one of the air outlets of the three-way solenoid valve (14) is connected to the buffer tank (2) through a return air pipe (16); the aerosol detection sensor (13) and the three-way solenoid valve (14) are electrically connected to the controller (15).

2. The exhaust gas treatment device for an automatic smoking machine according to claim 1, characterized in that: The absorption tank is divided into a first absorption tank (3), a second absorption tank (4), and a third absorption tank (5), and the buffer tank (2), the first absorption tank (3), the second absorption tank (4), the third absorption tank (5), and the solid adsorption tank (6) are connected in sequence through a first exhaust pipe (8), a second exhaust pipe (9), a third exhaust pipe (10), and a fourth exhaust pipe (11), respectively.

3. The exhaust gas treatment device for an automatic smoking machine according to claim 2, characterized in that: The buffer tank (2), the first absorption tank (3), the second absorption tank (4), the third absorption tank (5) and the solid adsorption tank (6) can be disassembled and separated from the aerosol exhaust gas absorption box (1).

4. The exhaust gas treatment device for an automatic smoking machine according to claim 2 or 3, characterized in that: The inlet ends of the first exhaust pipe (8), the second exhaust pipe (9), the third exhaust pipe (10) and the fourth exhaust pipe (11) are located at the top of the corresponding buffer tank and the absorption tank, respectively, and the outlet ends are located at the bottom of the corresponding absorbent liquid and the adsorbent, respectively.

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