A biomimetic fish gill sensor chamber dust removal device

Abstract

The application belongs to the field of gas dust removal technology, and is composed of a fish-imitating shell, a bionic fish gill assembly, a cuboid assembly and a square assembly. The application cooperates the battery box pair, the air inlet pipe, the square pipe, the gas conveying pipe, the filter plate and the hemispherical lug group to filter the dust entrained in the gas. The application imitates the shape of fish and the structure of fish gill rake to design a bionic fish gill sensor chamber dust removal device. The inside of the head chamber is designed to imitate the streamline shape of the fish head, and the bionic fish gill assembly group, the filter plate and the side surface are continuously attached with electrostatic adsorption material copper foam. After being electrified, the copper foam has the function of electrostatic adsorption of dust, so that the gas can filter the dust contained in the gas after passing through the bionic fish gill assembly group before being detected, the dust attached to the surface of the sensor is reduced, and the sensitivity of detection is greatly improved.

Description

Technical Field

[0001] This invention belongs to the field of gas dust removal technology, specifically relating to a biomimetic fish gill sensor chamber dust removal device. Background Technology

[0002] An electronic nose is a device based on sensors and artificial intelligence technology capable of detecting and identifying various odors and substances. It is widely used in food quality inspection, medical disease detection, hazardous materials detection, and environmental air quality monitoring. When an electronic nose is used in environments with high dust concentrations, dust particles can drift with the airflow and deposit inside the nose and on the sensor surface. Excessive deposition can severely interfere with the normal operating efficiency of the electronic nose and reduce its detection sensitivity. Current dust removal methods for electronic noses primarily involve filtering dust using a filter membrane. However, after a period of use, a large amount of dust accumulates on the surface of the filter membrane, reducing the time and flow rate of the subsequent gas passing through the membrane, decreasing the accuracy of the electronic nose sensor in capturing gas molecules per unit volume, and requiring frequent filter membrane replacements, which also reduces worker efficiency. Furthermore, the self-dust removal effect is not high. Using electrostatic adsorption material, copper foam, and attaching it to the front and sides of the biomimetic fish gill assembly and filter plate, allows for electrostatic adsorption of dust when energized. This increases the contact time between the dust-laden airflow and the filter plate, resulting in better dust deposition.

[0003] Inspired by the process of fish preying on plankton in water, this invention utilizes the narrow gaps between the interlocking gill rakers to trap particulate matter such as plankton in the grooves between the two gill rakers on each gill arch. Water flows into the gill cavity through these gaps, thus separating particulate matter from the fluid. Inspired by this, the gill raker structure is incorporated into the sensor's dust removal chamber, improving the dust removal efficiency of the gas being measured. After detection, a high-speed clean airflow is introduced in reverse from the outlet to remove dust deposited in the chamber. Dust is collected at the inlet, preventing secondary air pollution and significantly improving the chamber's self-dust removal efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a biomimetic sensor chamber dust removal device to improve the sensitivity of sensor detection. This biomimetic chamber mimics the shape and gill raker structure of a fish, and electrostatic adsorption material is continuously attached to the front and sides of the biomimetic gill assembly and filter plate. It is connected to a battery box via wires fixed to the inner wall of the chamber and connected to the copper foam of the electrostatic adsorption material. When starting, the electrostatic adsorption material is energized, and an air pump draws gas into the chamber. The internal shape of the chamber alters the state of the dust-laden airflow. Through electrostatic adsorption, dust is better deposited within the chamber, allowing the airflow to pass smoothly. Six holes evenly distributed around the rear of the air supply pipe facilitate the direct placement of a semiconductor gas sensor, enabling rapid gas detection. After detection, the electrostatic adsorption material is de-energized, the dust loses its electrical charge, and a high-speed airflow is introduced in the opposite direction from the outlet to remove the deposited dust. Dust can be collected at the inlet to avoid secondary air pollution, while simultaneously reducing the frequency of filter membrane replacement, significantly improving the chamber's self-dust removal efficiency and thus enhancing the sensor's detection sensitivity.

[0005] This invention discloses a biomimetic fish gill sensor chamber dust removal device, comprising a fish-shaped outer shell A, a biomimetic fish gill assembly B, and a battery box pair 1. The fish-shaped outer shell A consists of an air inlet pipe 2, a left square pipe 3, a right square pipe 4, and an air delivery pipe 5. The left square pipe 3 and the right square pipe 4 are symmetrically arranged about the longitudinal center section aa. The rear end of the air inlet pipe 2 is connected to the front end of the left square pipe 3 and the right square pipe 4, and the front end of the air delivery pipe 5 is connected to the rear end of the left square pipe 3 and the right square pipe 4. Taking the right square pipe 4 as an example, its inner edge line is composed of a front segment line 4a, a middle segment line 4b, and a rear segment line 4c. The angle between the front segment line 4a and the rear segment line 4c and the longitudinal center section aa is... The angles are equal, all between 26-28°; the middle section line 4b is parallel to the longitudinal center section of aa, and the distance h1 between them is 95-105mm; the front section line 4a, the middle section line 4b, and the rear section line 4c are smoothly connected sequentially; the left bionic gill assembly group B1 and the right bionic gill assembly group B2 each consist of 4 bionic gill assemblies with identical structures, and are symmetrically arranged about the front of the left square tube 3 and the right square tube 4 in the fish-shaped shell A about the longitudinal center section of aa; each bionic gill assembly consists of a cuboid assembly group C, a cube assembly group D, and a filter plate 6, wherein the cuboid assembly group C consists of 9 cuboid assemblies. Each cuboid component consists of a cuboid 7 and five hemispherical protrusions of a hemispherical protrusion group 8, with one hemispherical protrusion fixed to the front end of the cuboid 7 and the other four hemispherical protrusions symmetrically fixed to the top and bottom sides of the cuboid 7; the cube component group D consists of three cube components, each cube component consisting of a cube 9 and two hemispherical protrusions of a hemispherical protrusion group 10, with the two hemispherical protrusions fixed to the left and right sides of the cube 9 respectively; the three cube components of the cube component group D are arranged horizontally and fixed to the top of the filter plate 6 through the bottom of each cube; the nine cuboid components of the cuboid component group C are arranged in a... The batteries are arranged in a pattern and fixed to the front of the filter plate 6 via the rear end of each cuboid; the two battery boxes of battery box pair 1 are respectively fixed to the upper middle part of the left square tube 3 and the right square tube 4 in the fish-shaped outer A.

[0006] The rear part of the gas pipe 5 is provided with 6 through holes of the through hole group 5a, which are evenly distributed on the circumference of the cross section. The 6 sensors of the sensor group 5b are fixed in the 6 through holes of the through hole group 5a.

[0007] The cuboid and hemispherical protrusions of the cuboid component group C in the bionic fish gill component group B, the cube and hemispherical protrusions of the cube component group D, and the exposed surfaces of the filter plate 6 are covered with foam copper electrostatic adsorption material, with the foam copper covering being 1-2mm thick.

[0008] The air intake pipe 2 of the fish-shaped shell A has a circular cross-section with an outer diameter of 33-37 mm and an inner diameter of 23-27 mm; the air delivery pipe 5 of the fish-shaped shell A has a circular cross-section with an outer diameter of 48-52 mm and an inner diameter of 38-42 mm; the left and right square pipes 3 and 4 of the fish-shaped shell A have square cross-sections with a wall thickness of 3-7 mm and a side length h2 of 55-65 mm; the length L4 of the cuboid 7 in the cuboid assembly group C is 14-16 mm, and the side length L6 of the square is 7-9 mm; the radius r1 of the hemispherical protrusion in the cuboid assembly group C is... In cube component group D, the radius r2 of the hemispherical protrusions is the same, which is 2-4mm. In cuboid component group C, the center distance L5 of the two hemispherical protrusions on each side of cuboid 7 is 8-10mm. The filter plate 6 is 45-55mm long, 33-35mm wide, and 11-13mm high. The left bionic gill component group B1 and the right bionic gill component group B2 each have 4 bionic gill components, which are staggered in front of the left square tube 3 and the right square tube 4 in the fish-shaped shell A. The distance L8 between the two filter plates 6 with the same opening direction on the normal line is 83-85mm.

[0009] The working process and principle of this invention are as follows:

[0010] A dust collection chamber is installed at the air inlet of the electronic nose. When the electronic nose is working, a power source (such as an air pump) is added to the air inlet pipe of the dust collection chamber to provide air intake for the entire device. When the dust-laden airflow enters the dust collection chamber from the air inlet pipe, the streamlined shape of the chamber head, mimicking a fish's head, is relatively smooth, and the cross-sectional area of ​​the chamber head gradually increases along the direction of airflow, resulting in stable airflow within the chamber. The airflow continues until it reaches the bifurcation point on both sides of the chamber, forming two airflow streams. A biomimetic gill assembly is installed on the filter plate, allowing dust to be blocked and deposited around the biomimetic gill assembly under gravity as the dust-laden airflow passes through it. The airflow continues forward, and the staggered openings of the filter plate ensure that the dust-laden airflow makes full contact with the biomimetic gill assembly as it flows inside the chamber, greatly improving dust deposition efficiency. Simultaneously, an electrostatic adsorption material, copper foam, is energized to adsorb dust, thereby increasing the accuracy of the electronic nose in detecting the gas being tested. Six holes are evenly distributed around the rear of the gas pipeline. Depending on the type of gas to be detected, a corresponding sensitive sensor element is placed in the hole. When the gas to be detected is volatile organic compounds (VOCs), the sensor can be selected from TGS2620, GSBT11, etc.; when the gas to be detected is natural gas, the sensor can be selected from TGS2611, MP-4, etc. In addition, optical sensors, temperature sensors, etc. can also be placed in the hole according to the detection requirements.

[0011] Once the testing is complete, the electrostatic adsorption material is de-energized, and a high-speed clean airflow is introduced in reverse from the outlet of the air supply pipe. As the high-speed clean airflow passes through the filter array, the absence of biomimetic gill components in the airflow direction allows it to pass through the filter array more quickly, and it can also rapidly wash away dust deposited around the biomimetic gill components. Dust can be collected at the air inlet to prevent secondary air pollution.

[0012] The beneficial effects of this invention are as follows:

[0013] 1. The sensor chamber dust removal device with a fish-like shape mimics the streamlined shape of a fish's head. The head chamber is designed to be streamlined, and the gas turning points are rounded to make the airflow smoother, providing a favorable external environment for dust deposition and reducing the device's own disturbance to the airflow.

[0014] 2. The staggered array of filter plates allows the gas to fully contact the biomimetic fish gill components during flow, increasing dust deposition efficiency.

[0015] 3. The biomimetic gill assembly can effectively filter dust in the dust-laden airflow and slow down the flow rate of the dust-laden airflow, increasing the deposition time.

[0016] 4. The biomimetic fish gill assembly has electrostatic adsorption material continuously attached to the front and sides of the filter plate. After being energized, it can adsorb dust in the dusty airflow and increase the contact time between the dust and the filter plate, thereby improving the dust deposition efficiency.

[0017] 5. After the testing is completed, the electrostatic adsorption material is de-energized, and a high-speed clean airflow is introduced in reverse to achieve self-cleaning of the dust removal device. There is no need to replace the filter device, which improves the work efficiency of the workers.

[0018] In summary, this invention can be used to filter gases when using sensors in environments with high dust concentrations, achieving efficient cleaning of the sampled gas, reducing dust deposition on the sensor surface, improving the sensor's detection sensitivity, and eliminating the need to replace the filter device, thus effectively saving costs. Attached Figure Description

[0019] Figure 1 A partial cross-sectional view of the dust removal device in the biomimetic fish gill sensor chamber;

[0020] Figure 2 A three-dimensional view of the fish-shaped outer shell A;

[0021] Figure 3 This is a view of the cross-section at the through-hole group 5a in the gas transmission pipe 5;

[0022] Figure 4 This is a schematic diagram of the structure of the biomimetic fish gill assembly groups B1 and B2;

[0023] Figure 5 Dimensioning diagram for the fish-shaped outer shell A;

[0024] Figure 6 A top view of the biomimetic fish gill assembly;

[0025] Figure 7 This is a front view of the biomimetic fish gill assembly;

[0026] Figure 8 This is the main view of the cuboid component C;

[0027] Figure 9 This is the front view of cuboid component C;

[0028] Figure 10 This is a top view of cube component D;

[0029] Figure 11 This is the front view of cube component D;

[0030] Figure 12 Dimensional markings for biomimetic fish gill assembly groups B1 and B2;

[0031] Among them: A. Fish-shaped shell B1. Left bionic gill assembly B2. Right bionic gill assembly C. Cuboid assembly D. Cube assembly 1. Battery box pair 2. Air intake pipe 3. Square tube I 4. Square tube II 4a. Front section line 4b. Middle section line 4c. Rear section line 5. Air supply pipe 5a. Through hole group 5b. Sensor group 6. Filter plate 7. Cuboid 8. Hemispherical bump group 9. Cube 10. Hemispherical bump pair Detailed Implementation

[0032] The present invention will now be described in conjunction with the accompanying drawings.

[0033] like Figure 1 , Figure 4 and Figure 5 As shown, the present invention discloses a biomimetic fish gill sensor chamber dust removal device, comprising a fish-shaped shell A, a biomimetic fish gill assembly group B, and a battery box pair 1. The fish-shaped shell A consists of an air inlet pipe 2, a left square pipe 3, a right square pipe 4, and an air delivery pipe 5. The left square pipe 3 and the right square pipe 4 are symmetrically arranged about the longitudinal center section aa. The rear end of the air inlet pipe 2 is connected to the front end of the left square pipe 3 and the right square pipe 4, and the front end of the air delivery pipe 5 is connected to the rear end of the left square pipe 3 and the right square pipe 4. The rear end of the air delivery pipe 5 has six through holes in a through hole group 5a, and the six sensors of the sensor group 5b are correspondingly fixed in the six through holes of the through hole group 5a. The left biomimetic fish gill assembly group B1 and the right biomimetic fish gill assembly group B2 each have four [unclear characters]. The components are composed of identical biomimetic gill assemblies, symmetrically arranged about the front of the left tube 3 and right tube 4 in the fish-shaped outer shell A about the longitudinal center section of aa; each biomimetic gill assembly consists of a cuboid assembly group C, a cube assembly group D, and a filter plate 6; the two battery boxes of battery box pair 1 are respectively fixed to the upper middle of the left tube 3 and right tube 4 in the fish-shaped outer shell A, and the four wires leading out are respectively connected to the electrostatic adsorption materials on the four filter plates 6 on the same side, so that when the power box is turned on, the electrostatic adsorption materials on each filter plate 6 are in an energized state, which can efficiently adsorb dust; the electrostatic adsorption material foam copper is continuously attached to the front and sides of the biomimetic gill assembly group B and the filter plate 6.

[0034] like Figure 7 As shown, cuboid component group C consists of 9 cuboid components. Each cuboid component consists of a cuboid 7 and 5 hemispherical protrusions of hemispherical protrusion group 8. One hemispherical protrusion is fixed to the front end of cuboid 7, and the other 4 hemispherical protrusions are symmetrically fixed to the top and bottom sides of cuboid 7. The 9 cuboid components of cuboid component group C are arranged as follows: The cube components are arranged in a specific pattern and fixed to the front of the filter plate 6a via the rear end of each cube. The cube component group D consists of 3 cube components, each of which consists of a cube 9 and two hemispherical protrusions of a hemispherical protrusion pair 10. The two hemispherical protrusions are fixed to the left and right sides of the cube 9 respectively. The 3 cube components of the cube component group D are arranged in a left-right direction and fixed to the top of the filter plate 6 via the bottom of each cube.

[0035] Before operation, turn on the power supply of battery box 1 to power the electrostatic adsorption material. When the dust-laden airflow enters the dust removal chamber from the air inlet pipe 2, the gas flows into square pipe I and square pipe II at the bifurcation point. After being filtered by the biomimetic gill assembly group B and the filter plate 6, the gas flows to the confluence point and flows out of the chamber from the air supply pipe 5. At the rear end of the air supply pipe 5, it passes through the sensor group 5b to achieve rapid gas detection.

Claims

1. A dust removal device for a biomimetic fish gill sensor chamber, characterized in that... It consists of a fish-shaped shell (A), a biomimetic gill assembly (B), and a battery box pair (1). The fish-shaped shell (A) is composed of an air inlet pipe (2), a left square pipe (3), a right square pipe (4), and an air delivery pipe (5). The left square pipe (3) and the right square pipe (4) are symmetrically arranged about the longitudinal center section of aa. The rear end of the air inlet pipe (2) is connected to the front end of the left square pipe (3) and the right square pipe (4), and the front end of the air delivery pipe (5) is connected to the rear end of the left square pipe (3) and the right square pipe (4). Taking the right square pipe (4) as an example, its inner edge line is composed of a front section line (4a), a middle section line (4b), and a rear section line (4c). The angle between the front section line (4a) and the rear section line (4c) and the longitudinal center section of aa is... They are equal, both being 26-28. The middle section line (4b) is parallel to the longitudinal center section of aa, and the distance h1 between them is 95-105mm; the front section line (4a), the middle section line (4b) and the rear section line (4c) are smoothly connected in sequence; the left bionic gill assembly group (B1) and the right bionic gill assembly group (B2) each consist of 4 bionic gill assemblies with the same structure, and are symmetrically arranged about the longitudinal center section of aa in front of the left square tube (3) and the right square tube (4) in the fish-shaped shell (A); each bionic gill assembly consists of a cuboid assembly group (C), a cube assembly group (D) and a filter plate (6), wherein the cuboid assembly group (C) consists of 9 cuboid assemblies, each cuboid assembly... The body component consists of a cuboid (7) and five hemispherical protrusions of a hemispherical protrusion group (8), one of which is fixed to the front end of the cuboid (7), and the other four hemispherical protrusions are symmetrically fixed to the top and bottom sides of the cuboid (7); the cube component group (D) consists of three cube components, each of which consists of a cube (9) and two hemispherical protrusions of a hemispherical protrusion pair (10), and the two hemispherical protrusions are fixed to the left and right sides of the cube (9) respectively; the three cube components of the cube component group (D) are arranged in a left-right direction and are fixed to the top of the filter plate (6) through the bottom of each cube; the nine cuboid components of the cuboid component group (C) are arranged in a left-right direction. The arrangement is as follows, and the rear ends of each cuboid are fixed to the front of the filter plate (6); the two battery boxes of the battery box pair (1) are respectively fixed to the upper middle of the left square tube (3) and the right square tube (4) in the fish-shaped outer (A); the rear part of the air pipe (5) is provided with 6 through holes of the through hole group (5a), which are evenly distributed on the circumference of the cross section, and the 6 sensors of the sensor group (5b) are fixed to the 6 through holes of the through hole group (5a); the cuboids and hemispherical protrusions of the cuboid component group (C) in the bionic fish gill component group (B), the cubes and hemispherical protrusions of the cube component group (D), and the exposed surfaces of the filter plate (6) are covered with foam copper electrostatic adsorption material, and the foam copper is 1-2mm thick.

2. The biomimetic fish gill sensor chamber dust removal device according to claim 1, characterized in that: The air intake pipe (2) of the fish-shaped shell (A) has a circular cross-section with an outer diameter of 33-37 mm and an inner diameter of 23-27 mm; the air delivery pipe (5) of the fish-shaped shell (A) has a circular cross-section with an outer diameter of 48-52 mm and an inner diameter of 38-42 mm; the cross-sections of the left square pipe (3) and the right square pipe (4) in the fish-shaped shell (A) are square, with a wall thickness of 3-7 mm and a side length h2 of 55-65 mm; the length L4 of the cuboid (7) in the cuboid assembly group (C) is 14-16 mm, and the side length L6 of the square is 7-9 mm; the radius r1 of the hemispherical protrusion in the cuboid assembly group (C) is... In the cube component group (D), the radius r2 of the hemispherical protrusions is the same, which is 2-4mm. In the cuboid component group (C), the center distance L5 of the two hemispherical protrusions on each side of the cuboid (7) is 8-10mm. The filter plate (6) is 45-55mm long, 33-35mm wide, and 11-13mm high. The left bionic gill component group (B1) and the right bionic gill component group (B2) each have 4 bionic gill components, which are arranged alternately in front of the left square tube (3) and the right square tube (4) in the fish-shaped shell (A). The distance L8 between the two filter plates (6) with the same opening direction on the normal line is 83-85mm.

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