Non-contact air filtration device and method for electromagnetic field inertial acceleration of particles separation

By using the Hall effect electromagnetic field inertial acceleration particle separation method, charged particles are accelerated and separated within a spiral air duct by the action of electromagnetic field. This solves the problems of large pressure difference and high energy consumption in existing environmental protection equipment, and achieves a highly efficient and energy-saving air filtration effect.

CN117816365BActive Publication Date: 2026-03-03WUXI ANHE PURIFICATION EQUIP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-12-26
Publication Date
2026-03-03

AI Technical Summary

Technical Problem

In existing environmental protection equipment, the pressure difference between the inlet and outlet of the filter element is large, the energy consumption is high, and the filtration accuracy and processing capacity are limited. Mechanical interception and electrostatic adsorption methods lead to increased filtration resistance.

Method used

An electromagnetic field inertial acceleration particle separation method based on the Hall effect is adopted. By using a particle humidifier, a spiral air duct, an electrostatic capacitor and a constant magnetic field, charged particles are accelerated and separated in the spiral air duct through the action of electromagnetic field. Non-contact filtration is achieved by using inertia and the Hall effect.

Benefits of technology

By minimizing the pressure difference between the inlet and outlet, energy is saved and energy consumption is reduced, while the processing capacity and filtration accuracy of the environmental protection system are improved.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of filtration equipment technology, and particularly to a non-contact air filtration device and method for particle separation using electromagnetic field inertial acceleration. It includes: a particle humidifier, a spiral duct, an electrostatic capacitor, a constant magnetic field, a particle collection and output pipe, and a clean air output pipe. The particle humidifier is installed at the input end of the spiral duct, and the output end is connected to the particle collection and output pipe. The clean air output pipe is connected to both sides of the upper edge of the particle collection and output pipe. The electrostatic capacitor consists of two coaxially distributed spiral positive electrode plates and a spiral negative electrode plate, respectively connected to the upper and lower outer walls of the spiral duct. The constant magnetic field consists of two axially linearly distributed spiral permanent magnets or energized solenoids, respectively connected to the left and right outer walls of the spiral duct. This invention minimizes the pressure difference between the inlet and outlet air ends, maximizing the processing capacity of the environmental protection system.
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Description

Technical Field

[0001] This invention relates to the field of filtration equipment technology, and in particular to a non-contact air filtration device and method based on the Hall effect and electromagnetic field inertial acceleration for particle separation. Background Technology

[0002] Existing environmental protection equipment uses filtration methods such as dust bags and filter cartridges, utilizing mechanical interception principles like collision and blockage, and electrostatic adsorption principles. These devices typically increase the pressure difference between the inlet and outlet of the filter elements, especially at high flow rates, resulting in significant resistance. This leads to high energy consumption and limits the maximum filtration capacity of the environmental protection system. While increasing filter density can improve filtration accuracy, it also increases pressure drop and energy consumption; the two factors are interconnected.

[0003] Therefore, there is an urgent need to develop a non-mechanical contact filtration technology. A non-contact air filtration device and method based on the Hall effect electromagnetic field inertial acceleration particle separation can solve the problems of large pressure difference between the inlet and outlet of the above-mentioned equipment and low maximum filtration limit of the environmental protection system, and minimize the pressure resistance of the filtration system. Summary of the Invention

[0004] The purpose of this invention is to provide a non-contact air filtration device and method based on Hall effect electromagnetic field inertial acceleration particle separation. This invention minimizes the pressure difference between the inlet and outlet air ends, thus saving energy and maximizing the processing capacity of the environmental protection system.

[0005] To solve the above-mentioned technical problems, the present invention provides a non-contact air filtration device based on the Hall effect and electromagnetic field inertial acceleration for particle separation, comprising: a particle humidifier, a spiral air duct, an electrostatic field capacitor, a constant magnetic field, a particle collection and output pipe, and a clean air output pipe.

[0006] The spiral air duct is equipped with the particle humidifier at its input end and the particle collection and output pipe at its output end. The clean air output pipe is connected to the front and rear sides of the upper edge of the particle collection and output pipe.

[0007] The electrostatic field capacitor consists of two coaxially distributed spiral positive electrode plates and a spiral negative electrode plate, which are respectively connected to the upper and lower outer walls of the spiral air duct.

[0008] The constant magnetic field consists of two axially linearly distributed helical magnets, which are connected to the left and right outer walls of the helical air duct, respectively.

[0009] Preferably, the spiral duct is composed of several axially stacked flat spiral pipes, and the cross-section of the opening of the flat spiral pipe is rectangular.

[0010] Preferably, the flat spiral pipe is made of a conductive ferromagnetic material.

[0011] Preferably, an insulating layer is provided between the flat spiral pipe and the electrostatic field capacitor, and between the electrostatic field capacitor and the constant magnetic field.

[0012] Preferably, the helical permanent magnet is made of permanent magnet material or an electromagnetic coil wound on a helical shell.

[0013] Preferably, the particle collection and output pipe is configured in an L-shape, with through holes on both sides of the upper edge of the L-shaped pipe for connection to the clean air output pipe, and the lowermost port of the L-shaped pipe is sealed.

[0014] Preferably, the clean air output duct is configured in a Y-shape, with two bypass branches at one end of the Y-shape connected to the through hole respectively.

[0015] This invention also provides a non-contact air filtration method based on the Hall effect and electromagnetic field inertial acceleration for particle separation, employing the non-contact air filtration device based on the Hall effect and electromagnetic field inertial acceleration for particle separation as described above, comprising the following steps:

[0016] Step 1: Allow the air containing impurity particles to flow into the filter device through the input end for filtration;

[0017] Step 2: Control the particle humidifier at the input end to work, forming humidified water mist, which encounters impurity particles and agglomerates into non-electrically neutral charged particles with increased volume;

[0018] Step 3: Under the influence of electric and magnetic fields, charged impurity particles are continuously accelerated along the spiral airflow, separating from air atoms and molecules;

[0019] Step 4: Air moves inside the spiral duct and is connected to the particle collection and output pipe at the output end of the spiral duct. Due to inertia, charged particles reach the particle collection and output pipe first and continue to rush downwards. They are collected through the L-shaped tube structure of the particle collection and output pipe, and due to the blocking effect of the L-shaped tube structure, they cannot bounce back.

[0020] Step 5: Since the output end of the clean air output pipe is directly connected to the external atmospheric pressure, the air pressure inside the clean air output pipe is much lower than the air pressure inside the particle collection output pipe. This causes the clean air to tend to the Y-shaped clean air output pipe with lower pressure, thereby achieving the separation of clean air and impurity particles.

[0021] Preferably, step three specifically involves: air moving within a spiral duct, simultaneously perpendicular to both the electrostatic field and the constant magnetic field, forming a plane A composed of mutually perpendicular magnetic and electrostatic fields. When charged particles move in the perpendicular magnetic field, due to the Hall effect, the charged particles will experience a force perpendicular to plane A.

[0022] Because of the different parameters and directions of the electrostatic field and the constant magnetic field, the force exerted on the charged particles may be the same as or opposite to the direction of motion. In this case, the parameters of the electrostatic field and the constant magnetic field can be adjusted to ensure that the force exerted on the charged particles is the same as the direction of motion. In this way, other atoms and molecules in the air are only subjected to the initial force and move forward in the spiral air duct, while the charged particles, in addition to the initial force, are also subjected to the Hall force under the combined action of the electric field and the magnetic field, which accelerates them. This allows the charged particles to move forward first and accelerate in the spiral air duct, thus separating them from the original air atoms and molecules.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] This invention proposes a novel filtration method that utilizes an electromagnetic field in a spiral duct to accelerate the inertia of particle motion, thereby separating particles from air. This method minimizes the pressure difference between the inlet and outlet, saving energy and maximizing the processing capacity of the environmental protection system. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the non-contact air filtration device of the present invention.

[0026] Figure 2 This is a schematic diagram of the spiral air duct, electrostatic capacitor, and constant magnetic field of the present invention.

[0027] Figure 3 This is a schematic diagram of the electrostatic field capacitor of the present invention.

[0028] Figure 4 This is a schematic diagram of the constant magnetic field structure of the present invention.

[0029] Figure 5 This is a schematic diagram of the spiral air duct structure of the present invention.

[0030] Figure 6 This is a schematic diagram of the particle collection and output pipe and the clean air output pipe of the present invention.

[0031] In the diagram: 1-spiral duct, 11-flat spiral pipe, 2-electrostatic field capacitor, 21-spiral positive electrode plate, 22-spiral negative electrode plate, 3-constant magnetic field, 31-spiral constant magnet, 4-particle collection and output pipe, 5-clean air output pipe. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0033] like Figures 1-6 As shown, the purpose of this invention is to provide a non-contact air filtration device based on the Hall effect and electromagnetic field inertial acceleration for particle separation, comprising: a particle humidifier, a spiral duct 1, an electrostatic field capacitor 2, a constant magnetic field 3, a particle collection and output pipe 4, and a clean air output pipe 5.

[0034] Among them, a particle humidifier is installed at the input end of the spiral duct 1, and a particle collection and output pipe 4 is connected to the output end. Clean air output pipes 5 are connected to the front and rear sides of the upper edge of the particle collection and output pipe 4.

[0035] The electrostatic field capacitor 2 is composed of two coaxially distributed spiral positive electrode plates 21 and spiral negative electrode plates 22, which are respectively connected to the upper and lower outer walls of the spiral air duct 1.

[0036] The constant magnetic field 3 is composed of two axially linearly distributed spiral constant magnets 31, which are connected to the left and right outer walls of the spiral air duct 1 respectively.

[0037] The spiral duct 1 is composed of several axially stacked flat spiral pipes 11, and the cross-section of the pipe opening of the flat spiral pipe 11 is rectangular.

[0038] The flat spiral tube 11 is made of a conductive ferromagnetic material, and the stacked flat spiral tubes can continuously transmit electrostatic force.

[0039] An insulating layer is provided between the flat spiral pipe 11 and the electrostatic field capacitor 2, and between the electrostatic field capacitor 2 and the constant magnetic field 3, to prevent short circuit between the positive and negative electrodes of electrostatics.

[0040] The spiral permanent magnet 31 is made of permanent magnet material or an electromagnetic coil wound on a spiral shell.

[0041] The particle collection and output pipe 4 is designed in an L-shape. Through holes are located on both sides of the upper edge of the L-shaped pipe for connection to the clean air output pipe 5. The bottom end of the L-shaped pipe is sealed, creating a certain air pressure inside the pipe. This air pressure creates resistance to the movement of the particles, slowing their speed.

[0042] The clean air output duct 5 is designed in a Y-shape, with two bypass branches at one end of the Y-shaped duct connected to the through hole respectively.

[0043] This invention also provides a non-contact air filtration method based on the Hall effect and electromagnetic field inertial acceleration for particle separation, comprising the following steps:

[0044] Step 1: Allow the air containing impurity particles to flow into the filter device through the input end for filtration;

[0045] Step 2: Control the particle humidifier at the input end to work, forming humidified water mist, which encounters impurity particles and agglomerates into non-electrically neutral charged particles with increased volume;

[0046] Step 3: Under the influence of electric and magnetic fields, charged impurity particles are continuously accelerated along the spiral air duct 1 and separated from air atoms and molecules;

[0047] That is, air moves within the spiral duct 1, and is perpendicular to both the electrostatic field and the constant magnetic field 3. Plane A is formed by the mutually perpendicular magnetic field and electrostatic field. When charged particles move in the perpendicular magnetic field, due to the Hall effect, the charged particles will be subjected to a force perpendicular to plane A. This is especially evident in solids. The gas here can be regarded as a solid with a very low density, and the charged particles inside are also subjected to a force perpendicular to plane A.

[0048] Because of the different parameters and directions of the electrostatic field and the constant magnetic field, the force exerted on the charged particles may be the same as or opposite to the direction of motion. In this case, the three parameters of the electrostatic field and the constant magnetic field can be adjusted to ensure that the force exerted on the charged particles is the same as the direction of motion. In this way, other atoms and molecules in the air are only subjected to the initial force and move forward in the spiral air duct 1, while the charged particles, in addition to the initial force, are also subjected to the Hall force under the combined action of the electric field and the magnetic field, which accelerates them. This allows the charged particles to move forward first and accelerate in the spiral air duct 1, thus separating from the original air atoms and molecules.

[0049] Step 4: Air moves inside the spiral duct 1 and is connected to the particle collection and output pipe 4 at the output end of the spiral duct 1. Due to inertia, charged particles reach the particle collection and output pipe 4 first and continue to rush downwards. They are collected through the L-shaped pipe structure of the particle collection and output pipe 4, and due to the blocking effect of the L-shaped pipe structure, they cannot bounce back.

[0050] Step 5: Since the output end of the clean air output pipe 5 is directly connected to the external atmospheric pressure, the air pressure inside the clean air output pipe 5 is much lower than the air pressure inside the particle collection output pipe 4. This causes the clean air to tend to the clean air output pipe 5 with its lower pressure, which has a Y-shaped pipe structure, thereby achieving the separation of clean air and impurity particles.

[0051] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.

Claims

1. A non-contact air filtration device based on Hall effect electromagnetic field inertial acceleration for particle separation, characterized in that, include: Particulate humidifier, spiral air duct, electrostatic field capacitor, magnetic field, particulate collection and output pipe and clean air output pipe; The spiral air duct is equipped with the particle humidifier at its input end and the particle collection and output pipe at its output end. The clean air output pipe is connected to the front and rear sides of the upper edge of the particle collection and output pipe. The electrostatic field capacitor consists of two coaxially distributed spiral positive electrode plates and a spiral negative electrode plate, which are respectively connected to the upper and lower outer walls of the spiral air duct. The magnetic field consists of two axially linearly distributed helical magnets, which are respectively connected to the left and right outer walls of the helical air duct. The air pressure inside the clean air output pipe is lower than the air pressure inside the particle collection output pipe, so that the clean air tends to flow into the clean air output pipe with lower pressure, thereby achieving the separation of clean air and charged impurity particles.

2. The non-contact air filtration device for particle separation based on the Hall effect and electromagnetic field inertial acceleration as described in claim 1, characterized in that, The spiral duct is composed of several axially stacked flat spiral pipes, and the cross-section of the opening of the flat spiral pipes is rectangular.

3. The non-contact air filtration device for particle separation based on the Hall effect and electromagnetic field inertial acceleration as described in claim 2, characterized in that, The flat, spiral-shaped pipe is made of a conductive ferromagnetic material.

4. The non-contact air filtration device for particle separation based on the Hall effect and electromagnetic field inertial acceleration as described in claim 2, characterized in that, An insulating layer is provided between the flat spiral pipe and the electrostatic capacitor, and between the electrostatic capacitor and the magnetic field.

5. The non-contact air filtration device for particle separation based on the Hall effect and electromagnetic field inertial acceleration as described in claim 1, characterized in that, The spiral magnet is made of an electromagnetic coil wound around the outer shell of the spiral air duct.

6. The non-contact air filtration device for particle separation based on the Hall effect and electromagnetic field inertial acceleration as described in claim 1, characterized in that, The particle collection and output pipe is designed in an L-shape, with through holes on both sides of the upper edge for connecting to the clean air output pipe, and the bottom end of the L-shaped pipe is sealed.

7. The non-contact air filtration device for particle separation based on the Hall effect and electromagnetic field inertial acceleration as described in claim 6, characterized in that, The clean air output duct is configured in a Y-shape, with two bypass branches at one end of the Y-shape connected to the through hole.

8. A non-contact air filtration method based on Hall effect electromagnetic field inertial acceleration particle separation, employing a non-contact air filtration device based on Hall effect electromagnetic field inertial acceleration particle separation as described in any one of claims 1 to 7, characterized in that, Includes the following steps: Step 1: Allow the air containing impurity particles to flow into the filter device through the input end for filtration; Step 2: Control the particle humidifier at the input end to work, forming humidified water mist, which encounters impurity particles and agglomerates into non-electrically neutral charged particles with increased volume; Step 3: Under the influence of electric and magnetic fields, charged impurity particles are continuously accelerated along the spiral airflow, separating from air atoms and molecules; Step 4: Air moves inside the spiral duct and is connected to the particle collection and output pipe at the output end of the spiral duct. Due to inertia, charged particles reach the particle collection and output pipe first and continue to rush downwards. They are collected through the L-shaped tube structure of the particle collection and output pipe and cannot bounce back due to the blocking effect of the L-shaped tube structure. Step 5: Since the output end of the clean air output pipe is directly connected to the external atmospheric pressure, the air pressure inside the clean air output pipe is lower than the air pressure inside the particle collection output pipe. This causes the clean air to tend to the Y-shaped clean air output pipe with lower pressure, thereby achieving the separation of clean air and impurity particles.

9. The non-contact air filtration method for particle separation based on the Hall effect and electromagnetic field inertial acceleration as described in claim 8, characterized in that, Step three specifically involves: Air moves within a spiral duct, perpendicular to both the electrostatic and magnetic fields. Plane A is formed by the mutually perpendicular magnetic and electrostatic fields. When charged particles move in the perpendicular magnetic field, due to the Hall effect, they experience a force perpendicular to plane A. Because of the different parameters and directions of the electrostatic and magnetic fields, the forces acting on charged particles and their directions of motion are the same or opposite. At this time, by adjusting and changing the parameters of the electrostatic and magnetic fields, it can be ensured that the forces acting on charged particles and their directions of motion are the same. In this way, all other atoms and molecules in the air are only subjected to the initial force and move forward in the spiral air duct, while the charged particles, in addition to the initial force, are also subjected to the Hall force under the combined action of the electric and magnetic fields, which accelerates them. Moreover, the direction of particle motion can be adjusted, so that the charged particles go first and accelerate forward in the spiral air duct, thereby separating from the original air atoms and molecules.

Citation Information

Patent Citations

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