Pollen aerosol particle collecting device
By using the electric field effect of the negative high-voltage discharge needle and conductive glass, pollen particles are charged and adsorbed. Combined with the design of the wind-driven tail fin and negative pressure pump, the problems of low collection efficiency and environmental interference in the existing technology are solved, and efficient and accurate pollen particle collection is achieved.
Patent Information
- Application Number
- CN202520163254.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-23
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-01-23
AI Technical Summary
Existing pollen aerosol particle collection technologies have low collection efficiency, slow pollen particle settling speed, and are easily affected by environmental factors, leading to inaccurate collection results.
By using a negative high-voltage discharge needle and conductive glass, pollen particles are charged and adsorbed using an electric field. Combined with wind direction and tail fin adjustment of the collection hatch position and negative pressure pump extraction, pollen particles can be captured efficiently.
It improves the pollen grain capture rate, reduces the impact of environmental factors, and enables faster collection of pollen grains of different sizes, thus improving the accuracy and efficiency of collection.
Smart Images
Figure CN223870370U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of microbial aerosol particle collection, specifically relating to a pollen aerosol particle collection device. Background Technology
[0002] In modern society, the impact of pollen in microbial aerosols on human health is receiving increasing attention. Artemisia pollen, a common airborne allergen, is a significant trigger for allergic rhinitis. When allergic rhinitis sufferers are exposed to artemisia pollen, their immune system overreacts, producing a series of uncomfortable symptoms. Patients not only experience frequent sneezing, nasal congestion, and runny nose, severely impacting their quality of life, but long-term exposure can also lead to a decreased sense of smell, subsequently affecting appetite. Furthermore, sleep disturbances often result in lethargy and difficulty concentrating, significantly reducing work and study efficiency. Therefore, accurately understanding the concentration of artemisia pollen in the air and effectively managing areas with high concentrations is of great importance.
[0003] Traditional pollen aerosol particle collection techniques, such as gravity sedimentation, utilize the natural settling property of pollen particles under gravity. A collection container (such as a petri dish or funnel) is placed at a certain height, and after a period of time, the pollen particles settle to the bottom, thus achieving collection. Its advantages include relatively simple operation, no need for complex equipment, and low cost. However, it has the following problems: low collection efficiency and long collection time; pollen particles are light and settle slowly, requiring a long waiting period to collect a sufficient sample; and it is easily affected by environmental factors, such as a slight breeze that may disperse the pollen, affecting the sedimentation effect and leading to inaccurate collection results. Summary of the Invention
[0004] To address the shortcomings of existing technologies, this invention proposes a pollen aerosol particle collection device to solve the technical problem of low pollen particle capture rate in existing pollen aerosol particle collection devices.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A pollen aerosol particle collection device includes a collection chamber, the bottom of which is connected to a cylindrical hollow column. The side wall of the cylindrical hollow column has a flexible tube hole, and a conductive slip ring is installed inside the cylindrical hollow column.
[0007] The lower wall of the collection chamber has a through hole located at the center line of the cylindrical hollow column. A straight connector is installed inside the through hole, with one end inside the collection chamber and the other end inside the cylindrical hollow column. The other end of the straight connector is connected to one end of a flexible hose, and the other end of the flexible hose extends out of the cylindrical hollow column through a hose hole. The other end of the flexible hose is connected to a negative pressure pump, which is connected to a pressure regulator through a first wire.
[0008] The top surface of the collection chamber is detachably fitted with a cover plate, and a conductive glass is installed below the cover plate. The conductive glass is connected to one end of a conductive clamp, the other end of the conductive clamp is connected to one end of a second wire, and the other end of the second wire is connected to a high-voltage power supply.
[0009] A negative high-voltage discharge needle is fixedly installed at the center of the side wall of the collection chamber. One end of the negative high-voltage discharge needle is connected to one end of the third wire, and the other end of the third wire is also connected to the high-voltage power supply. The other end of the negative high-voltage discharge needle extends horizontally into the collection chamber.
[0010] The side wall of the collection chamber is fixedly connected to the wind direction tail fin. The wind direction tail fin and the negative high voltage discharge needle are located on the same side of the collection chamber, and the wind direction tail fin is located above the negative high voltage discharge needle.
[0011] The high-voltage power supply is connected to the voltage regulator via the fourth wire, the voltage regulator is connected to the conductive slip ring via the fifth wire, and the conductive slip ring is connected to the battery via the sixth wire.
[0012] This utility model also has the following technical features:
[0013] The voltage regulator is a dual-channel voltage regulator.
[0014] The aforementioned negative high-voltage discharge needle is a negative high-voltage discharge tungsten needle.
[0015] The conductive glass is single-sided indium tin oxide plated glass.
[0016] The battery in question is a rechargeable battery.
[0017] The wind-directing tail fin is located 5mm above the negative high-voltage discharge needle; the negative high-voltage discharge needle is located 15mm below the conductive glass.
[0018] The voltage regulator and high-voltage power supply can be integrated together through a housing.
[0019] The cylindrical hollow column and the through hole are located directly below the bottom of the collection chamber.
[0020] One end of the hose and the conductive slip ring are both located on the center line of the cylindrical hollow column.
[0021] Compared with the prior art, the present invention has the following beneficial technical effects:
[0022] (I) This invention utilizes the cooperation between the negative high-voltage discharge needle and the grounding electrode conductive clamp to break down and make the air near the negative high-voltage discharge needle in the collection chamber conductive, generating free electrons and electron clouds of cations. Under the action of the electric field, pollen particles can move toward the conductive glass plated with indium tin oxide (ITO) and be adsorbed on the conductive glass, thereby increasing the additional charge of pollen particles in microbial aerosol particles and thus greatly increasing the pollen particle capture rate.
[0023] (II) This utility model, by installing a wind direction tail fin above the negative high voltage discharge needle and a conductive slip ring in the middle of the cylindrical hollow column, allows the overall collection cabin to adjust the position of the collection hatch according to the current natural wind direction, thereby reducing the influence of natural factors and improving the collection efficiency.
[0024] (III) This utility model can adjust the negative high voltage of the discharge needle and the air flow speed inside the collection chamber by using an external dual-circuit voltage regulator and negative pressure pump. This allows the charging of pollen particles of different sizes to be adjusted inside the collection chamber, thereby enabling more comprehensive collection of pollen particles of different sizes in the air and improving the practicality of the device. Attached Figure Description
[0025] Figure 1 This is a front view schematic diagram of a pollen aerosol particle collection device.
[0026] The meanings of the labels in the diagram are as follows: 1-Collection chamber, 2-Cylindrical hollow column, 3-Hose hole, 4-Conductive slip ring, 5-Straight hole, 6-Straight through, 7-Hose, 8-Negative pressure pump, 9-First wire, 10-Voltage regulator, 11-Cover plate, 12-Conductive glass, 13-Conductive clamp, 14-Second wire, 15-High voltage power supply, 16-Negative high voltage discharge needle, 17-Third wire, 18-Wind direction tail fin, 19-Fourth wire, 20-Fifth wire, 21-Sixth wire, 22-Battery.
[0027] The specific content of this utility model will be further explained in detail below with reference to the embodiments. Detailed Implementation
[0028] It should be noted that, unless otherwise specified, all equipment and components in this utility model are based on equipment and components known in the prior art.
[0029] Following the above technical solution, the following are specific embodiments of this utility model. It should be noted that this utility model is not limited to the following specific embodiments, and all equivalent modifications made based on the technical solution of this application fall within the protection scope of this utility model.
[0030] Example:
[0031] This embodiment proposes a pollen aerosol particle collection device, including a collection chamber 1, such as... Figure 1 As shown, the bottom surface of the collection chamber 1 is connected to the cylindrical hollow column 2. The side wall of the cylindrical hollow column 2 is provided with a flexible tube hole 3, and a conductive slip ring 4 is installed inside the cylindrical hollow column 2.
[0032] like Figure 1 As shown, a through hole 5 is provided on the lower wall of the collection chamber 1. The through hole 5 is located at the center line of the cylindrical hollow column 2. A straight pipe 6 is installed in the through hole 5. One end of the straight pipe 6 is located inside the collection chamber 1, and the other end of the straight pipe 6 is located inside the cylindrical hollow column 2. The other end of the straight pipe 6 is connected to one end of the hose 7. The other end of the hose 7 extends out of the cylindrical hollow column 2 through the hose hole 3. The other end of the hose 7 is connected to the negative pressure pump 8. The negative pressure pump 8 is connected to the pressure regulator 10 through the first wire 9.
[0033] like Figure 1 As shown, a cover plate 11 is detachably installed on the top surface of the collection chamber 1. A conductive glass 12 is provided below the cover plate 11. One end of the conductive glass 12 is connected to a conductive clamp 13. The other end of the conductive clamp 13 is connected to one end of a second wire 14. The other end of the second wire 14 is connected to a high-voltage power supply 15.
[0034] like Figure 1 As shown, a negative high-voltage discharge needle 16 is fixedly installed at the center of the side wall of the collection chamber 1. One end of the negative high-voltage discharge needle 16 is connected to one end of the third wire 17, and the other end of the third wire 17 is also connected to the high-voltage power supply 15. The other end of the negative high-voltage discharge needle 16 extends horizontally into the collection chamber 1.
[0035] like Figure 1 As shown, the side wall of the collection chamber 1 is fixedly connected to the wind direction tail fin 18. The wind direction tail fin 18 and the negative high voltage discharge needle 16 are located on the same side of the collection chamber 1, and the wind direction tail fin 18 is located above the negative high voltage discharge needle 16.
[0036] like Figure 1 As shown, the high-voltage power supply 15 is connected to the voltage regulator 10 through the fourth wire 19, the voltage regulator 10 is connected to the conductive slip ring 4 through the fifth wire 20, and the conductive slip ring 4 is connected to the battery 22 through the sixth wire 21.
[0037] Specifically, in this embodiment, the voltage regulator 10 is a dual-channel voltage regulator. The dual-channel voltage regulator can provide the required dual-channel constant voltage to the high-voltage power supply 15 and the negative pressure pump 8. The dual-channel voltage regulator can accurately regulate the voltage of the high-voltage power supply 15 and the negative pressure pump 8 respectively, thereby meeting the needs under different working conditions.
[0038] In this embodiment, the negative high-voltage discharge needle 16 is a negative high-voltage discharge tungsten needle, which has the advantages of high temperature resistance, corrosion resistance and good conductivity.
[0039] In this embodiment, the conductive glass 12 is a single-sided indium tin oxide plated glass. The indium tin oxide plated glass has good conductivity and light transmittance, which can not only ensure the normal progress of the discharge process, but also facilitate the observation of the situation inside the collection chamber 1.
[0040] In this embodiment, battery 22 is a rechargeable battery, which can be reused, saving energy and protecting the environment.
[0041] Specifically, in this embodiment, the wind-directing tail fin 18 is located 5mm above the negative high-voltage discharge needle 16; the negative high-voltage discharge needle 16 is located 15mm below the conductive glass 12.
[0042] Specifically in this embodiment, the voltage regulator 10 and the high-voltage power supply 15 can be integrated together through a housing. The integrated design facilitates installation and portability, and also reduces the overall size of the device.
[0043] Specifically in this embodiment, the cylindrical hollow column 2 and the through hole 5 are located directly below the bottom surface of the collection chamber 1.
[0044] In this embodiment, one end of the flexible hose 7 and the conductive slip ring 4 are both located on the center line of the cylindrical hollow column 2, which can ensure the smoothness of gas transmission, reduce energy loss, and facilitate the assembly and maintenance of the device.
[0045] Specifically, in this embodiment, when the collection device is working, the wind-directing tail fin 18 adjusts the orientation of the collection port of the collection chamber 1 according to the wind direction near the collection device to reduce the influence of natural factors. The battery 22 powers the entire device, and the voltage of the high-voltage power supply 15 and the negative pressure pump 8 are adjusted by the voltage regulator 10. The high-voltage power supply 15 discharges and ionizes the pollen particles at the tip of the negative high-voltage discharge needle 16. The pollen particles and other aerosol particles become charged and move towards the conductive glass 12 and are adsorbed onto it under the action of the electric field. The negative pressure pump 8 generates negative pressure and draws air into the collection chamber 1 through the hose 7, allowing the pollen particles to enter the collection chamber 1 and be adsorbed more quickly. By adjusting the voltage of the high-voltage power supply 15, the electric field strength can be changed. By using different electric field strengths, pollen of different particle sizes can be collected, improving sampling efficiency and time resolution. The conductive slip ring 4 ensures normal circuit conduction when the cylindrical hollow column 2 rotates. This invention is based on the charging phenomenon and particle size of pollen particles in aerosol particles, and combines electrostatic and volumetric principles to achieve efficient collection of pollen particles in bioaerosol particles. At the same time, it utilizes different electric field strengths to achieve the collection of pollen particles of different sizes.
Claims
1. A pollen aerosol particle collection device, comprising a collection chamber (1), characterized in that, The bottom surface of the collection chamber (1) is connected to the cylindrical hollow column (2). The side wall of the cylindrical hollow column (2) is provided with a flexible tube hole (3). A conductive slip ring (4) is installed inside the cylindrical hollow column (2). The lower wall of the collection chamber (1) is provided with a through hole (5). The through hole (5) is located at the center line of the cylindrical hollow column (2). A straight pipe (6) is installed in the through hole (5). One end of the straight pipe (6) is located inside the collection chamber (1), and the other end of the straight pipe (6) is located inside the cylindrical hollow column (2). The other end of the straight pipe (6) is connected to one end of the hose (7). The other end of the hose (7) extends out of the cylindrical hollow column (2) through the hose hole (3). The other end of the hose (7) is connected to the negative pressure pump (8). The negative pressure pump (8) is connected to the pressure regulator (10) through the first wire (9). The top surface of the collection chamber (1) is detachably fitted with a cover plate (11), and a conductive glass (12) is provided below the cover plate (11). The conductive glass (12) is connected to one end of a conductive clamp (13), and the other end of the conductive clamp (13) is connected to one end of a second wire (14). The other end of the second wire (14) is connected to a high-voltage power supply (15). A negative high voltage discharge needle (16) is fixedly installed at the center of the side wall of the collection chamber (1). One end of the negative high voltage discharge needle (16) is connected to one end of the third wire (17), and the other end of the third wire (17) is also connected to the high voltage power supply (15). The other end of the negative high voltage discharge needle (16) extends horizontally into the collection chamber (1). The side wall of the collection chamber (1) is fixedly connected to the wind direction tail fin (18). The wind direction tail fin (18) and the negative high voltage discharge needle (16) are located on the same side of the collection chamber (1), and the wind direction tail fin (18) is located above the negative high voltage discharge needle (16). The high-voltage power supply (15) is connected to the voltage regulator (10) via the fourth wire (19), the voltage regulator (10) is connected to the conductive slip ring (4) via the fifth wire (20), and the conductive slip ring (4) is connected to the battery (22) via the sixth wire (21).
2. The pollen aerosol particle collection device as described in claim 1, characterized in that, The voltage regulator (10) is a dual-channel voltage regulator.
3. The pollen aerosol particle collection device as described in claim 1, characterized in that, The negative high voltage discharge needle (16) is a negative high voltage discharge tungsten needle.
4. The pollen aerosol particle collection device as described in claim 1, characterized in that, The conductive glass (12) is a single-sided indium tin oxide plated glass.
5. The pollen aerosol particle collection device as described in claim 1, characterized in that, The battery (22) is a rechargeable battery.
6. The pollen aerosol particle collection device as described in claim 1, characterized in that, The wind-directing tail fin (18) is located 5 mm above the negative high-voltage discharge needle (16); the negative high-voltage discharge needle (16) is located 15 mm below the conductive glass (12).
7. The pollen aerosol particle collection device as described in claim 1, characterized in that, The voltage regulator (10) and the high-voltage power supply (15) can be integrated together through a housing.
8. The pollen aerosol particle collection device as described in claim 1, characterized in that, The cylindrical hollow column (2) and the through hole (5) are located directly below the bottom surface of the collection chamber (1).
9. The pollen aerosol particle collection device as described in claim 1, characterized in that, One end of the hose (7) and the conductive slip ring (4) are both located on the center line of the cylindrical hollow column (2).