A dynamic polarization filtering device

Abstract

The application relates to the technical field of filtration, and discloses a dynamic polarization filtering device, which comprises an electric field generating device, a filtering module and a voltage source; the electric field generating device is suitable for forming an electric field; the filtering module is arranged in the electric field; the voltage source is electrically connected with the electric field generating device, is suitable for loading voltage for the electric field generating device, and controls the electric field generating device to periodically change the direction of the electric field around the outer periphery of the filtering module, the dynamic change of the electric field direction with time is realized by the electric field, the change of the direction of the electric field force on the particulate matters is regulated, the captured particles can be uniformly deposited on the filtering module, the particulate matter capturing area and the particulate matter capturing amount are increased, and the captured particles can be more closely accumulated on the filtering module.

Description

Technical Field

[0001] This invention relates to the field of filtration technology, and more specifically to a dynamic polarization filtration device. Background Technology

[0002] Electrostatic adsorption is an advanced gas-solid, liquid-solid, and liquid-liquid separation method with wide applications in industrial dust treatment, air purification, electrostatic dust removal, and material purification. This separation method mainly utilizes the high-voltage electrostatic field generated between parallel plates to apply electrostatic forces to polar substances in the fluid medium flowing through the electrostatic field. These forces include dielectric force (when the polar substance is uncharged) and Coulomb force (when the polar substance is charged). Driven by the electrostatic force, the polar substance moves in a specific direction and is captured by the plates or the filter material between the plates, achieving effective material separation.

[0003] When a fluid medium containing particulate matter flows through an electrostatic field, the particles, due to their size, inevitably create localized protrusions at the capture sites when captured on the filter material or electrodes. Under the influence of the electrode voltage, these protrusions alter and enhance the local electric field strength, causing subsequent particles to tend to deposit along the electric field direction at these protrusions (i.e., the preceding particles captured). This results in a particle chain roughly aligned with the electric field direction. These particle chains have elongated structures, making them easily carried away by the fluid after capture, thus reducing overall separation efficiency. Furthermore, the spatially loose packing of the particle chains means that some filter material or electrodes cannot effectively capture the particles, reducing the total amount of particles that can be captured per unit of separation medium. This spatially loose structure also causes rapid clogging of the pores between electrodes or filter materials, significantly increasing fluid flow resistance and reducing the lifespan of the electrostatic adsorption separation components. Summary of the Invention

[0004] In view of this, the present invention provides a dynamic polarization filtration device to solve the problem that when a fluid medium containing particulate matter flows through an electrostatic field, it is captured in the electrostatic adsorption region and forms a loose chain of slender particles along the direction of the electric field.

[0005] In a first aspect, the present invention provides a dynamic polarization filtering device, comprising an electric field generating device, a filtering module, and a voltage source; the electric field generating device is adapted to generate an electric field; the filtering module is disposed in the electric field; the voltage source is electrically connected to the electric field generating device and is adapted to apply a voltage to the electric field generating device and control the electric field generating device to periodically change the direction of the electric field around the outer periphery of the filtering module.

[0006] Beneficial effects: The filter module is located in an electric field with a dynamically changing electric field direction. When the fluid medium containing particulate matter flows through the electric field, the particulate matter is regulated by the changing direction of the electric field force, causing the formed particulate matter chains to be subjected to forces not along the chain direction. This allows the captured particulate matter to settle evenly on the filter module, increasing the capture area and the amount of particulate matter captured. Furthermore, it allows the captured particulate matter to accumulate more tightly on the filter module, reducing the phenomenon of particulate matter being carried away by the fluid after being adsorbed on the filter module. The captured particulate matter is difficult to detach from the filter module, thus improving the overall filtration or separation efficiency of the device. It also slows down the clogging of the pores on the filter module, making the increase of fluid resistance to the filter module more slow, thereby extending the service life of the device.

[0007] In one optional embodiment, the electric field generating device includes a plurality of conductors, which are spaced apart around the outer periphery of the filter module. The voltage source has a plurality of voltage output terminals, which are respectively connected to the plurality of conductors one by one. A first portion of the voltage output terminals outputs a first voltage to the corresponding conductor to form a first conductor group, and a second portion of the voltage output terminals outputs a second voltage to the corresponding conductor to form a second conductor group. The first voltage is greater than the second voltage. The first conductor group and the second conductor group are arranged opposite to each other. The first conductor group and the second conductor group periodically change voltage around the outer periphery of the filter module, forming a wandering state.

[0008] Beneficial effects: Since the first voltage is greater than the second voltage, and the first and second conductor groups are arranged opposite each other, a potential difference exists between the first and second conductor groups, which can form an electric field with the direction of the electric field pointing from the first conductor group to the second conductor group. The arrangement of multiple conductors and multiple voltage output terminals facilitates the voltage output terminals to output the first and second voltages to the corresponding conductors in sequence as the voltage changes over time. This causes the first and second conductor groups to periodically change voltages around the outer periphery of the filter module over time, forming a wandering state, thereby realizing the dynamic change of the electric field direction.

[0009] In one optional embodiment, the voltage output terminal of the third part outputs a third voltage to the corresponding conductor to form a third conductor group; the third conductor group has two sets, one set is disposed between the wandering beginning of the first conductor group and the wandering end of the second conductor group, and the other set is disposed between the wandering end of the first conductor group and the wandering beginning of the second conductor group; the third voltage is greater than the second voltage and less than the first voltage; the first conductor group, the second conductor group and the third conductor group perform periodic voltage changes around the outer periphery of the filter module to form a wandering state.

[0010] Beneficial effects: Since the third voltage is greater than the second voltage but less than the first voltage, and one group of third conductors is positioned between the beginning of the first conductor group and the end of the second conductor group, while another group of third conductors is positioned between the end of the first conductor group and the beginning of the second conductor group, the potential difference between the conductors at the beginning of the first conductor group and the conductors at the end of the second conductor group, as well as between the conductors at the end of the first conductor group and the conductors at the beginning of the second conductor group, can be avoided to prevent excessive potential differences, thereby reducing the risk of electric sparks.

[0011] In one alternative embodiment, each of the conductors is made of a conductor or semiconductor material.

[0012] Beneficial effects: Both conductors and semiconductor materials can be controlled by the voltage output terminal to exhibit a mutually insulating state. That is, the conductors in the third conductor group can be controlled by the corresponding voltage output terminal to exhibit an insulating state. This can reduce the risk of generating electric sparks between the conductors at the beginning of the first conductor group and the conductors at the end of the second conductor group, as well as between the conductors at the end of the first conductor group and the conductors at the beginning of the second conductor group.

[0013] In one alternative embodiment, the first conductor group includes one or more of the conductors.

[0014] Beneficial effects: When the first conductor group includes one conductor, it facilitates the connection between the conductor of the first conductor group and the corresponding voltage output terminal, making its structure simpler; when the first conductor group, the second conductor group and the third conductor group perform periodic voltage transformation around the outer periphery of the filter module, forming a wandering state and thus changing the direction of the electric field, when the first conductor group includes multiple conductors, the change of the electric field direction is more compact and uniform.

[0015] In one alternative embodiment, the second conductor group includes one or more of the conductors.

[0016] Beneficial effects: When the second conductor group includes one conductor, it facilitates the connection between the conductor of the second conductor group and the corresponding voltage output terminal, making its structure simpler; when the first conductor group, the second conductor group and the third conductor group perform periodic voltage transformation around the outer periphery of the filter module, forming a wandering state and thus changing the direction of the electric field, when the second conductor group includes multiple conductors, the change of the electric field direction is more compact and uniform.

[0017] In one alternative implementation, the third conductor group includes one or more of the conductors.

[0018] Beneficial effects: When the third conductor group includes one conductor, it facilitates the connection between the conductor of the third conductor group and the corresponding voltage output terminal, making its structure simpler; when the first conductor group, the second conductor group and the third conductor group perform periodic voltage transformation around the outer periphery of the filter module, forming a wandering state and thus changing the direction of the electric field, when the third conductor group includes multiple conductors, the change of the electric field direction is more compact and uniform.

[0019] In one optional embodiment, the fourth part of the voltage output terminal outputs a fourth voltage to the corresponding conductor to form a fourth conductor group; the fifth part of the voltage output terminal outputs a fifth voltage to the corresponding conductor to form a fifth conductor group; the fourth conductor group is disposed between the first conductor group's traveling head and the second conductor group's traveling tail, and the fifth conductor group is disposed between the first conductor group's traveling tail and the second conductor group's traveling head; the fourth voltage is greater than the fifth voltage, and the fourth and fifth conductor groups are disposed opposite to each other; the first, fourth, second, and fifth conductor groups undergo periodic voltage changes around the outer periphery of the filter module to form a traveling state.

[0020] Beneficial effects: The fourth voltage is greater than the fifth voltage, and the fourth and fifth conductor groups are arranged opposite each other, resulting in a potential difference between the fourth and fifth conductor groups. This allows the electric field to be generated from the fourth conductor group to the fifth conductor group. Since the first and second conductor groups can form an electric field from the first conductor group to the second conductor group, the periodic voltage changes of the first, fourth, second, and fifth conductor groups around the outer periphery of the filter module create a wandering state, thus making the change in the direction of the electric field more compact and uniform.

[0021] In one alternative embodiment, the fourth conductor group includes one or more of the conductors.

[0022] Beneficial effects: When the fourth conductor group includes one conductor, it facilitates the connection between the conductor of the fourth conductor group and the corresponding voltage output terminal, making its structure simpler; when the first conductor group, the fourth conductor group, the second conductor group and the fifth conductor group perform periodic voltage transformation around the outer periphery of the filter module, forming a wandering state and thus changing the direction of the electric field, when the fourth conductor group includes multiple conductors, the change of the electric field direction is more compact and uniform.

[0023] In one alternative implementation, the fifth conductor group includes one or more of the conductors.

[0024] Beneficial effects: When the fifth conductor group includes one conductor, it facilitates the connection between the conductor of the fifth conductor group and the corresponding voltage output terminal, making its structure simpler; when the first conductor group, fourth conductor group, second conductor group and fifth conductor group perform periodic voltage transformation around the outer periphery of the filter module, forming a wandering state and thus changing the direction of the electric field, when the fifth conductor group includes multiple conductors, the change of the electric field direction is more compact and uniform.

[0025] In one alternative implementation, the voltage applied to the conductor changes over time in accordance with a sine or cosine function.

[0026] Beneficial effects: Since the voltage applied to the conductor changes with time in accordance with the law of sine or cosine function, the direction of the electric field also changes periodically with time, making the change of the electric field direction with time more uniform.

[0027] In an optional embodiment, the system further includes a housing, which comprises a first connecting plate, a second connecting plate, a third connecting plate, and a fourth connecting plate. The first connecting plate, the second connecting plate, the third connecting plate, and the fourth connecting plate are sequentially connected to form a rectangular cylindrical structure. A fluid inlet and a fluid outlet are respectively provided at both ends of the rectangular cylindrical structure. The filter module is located inside the housing. The two ends of the conductor are respectively connected to the first connecting plate and the third connecting plate. One or more conductors are provided at the fluid inlet, one or more conductors are provided at the fluid outlet, one or more conductors are provided near the second connecting plate, and one or more conductors are provided near the fourth connecting plate.

[0028] Beneficial effects: The housing facilitates the fixed connection of the conductors and provides a certain degree of protection for both the filter module and the conductors. Since the filter module is located inside the housing, and one or more conductors are located at the fluid inlet, fluid outlet, near the second connecting plate, and near the fourth connecting plate, the conductors are spaced apart around the outer periphery of the filter module. The presence of one or more conductors at both the fluid inlet and outlet allows the fluid medium to flow from the fluid inlet through one or more conductors into the electric field and towards the filter module, and then out of the electric field through another one or more conductors. This facilitates the flow of the fluid medium along the direction of the electric field, thereby allowing the particles in the fluid medium to be controlled by changes in the direction of the electric field force.

[0029] In one optional embodiment, the conductor is a conductive rod, with multiple conductive rods spaced apart at the fluid inlet, multiple conductive rods spaced apart at the fluid outlet, multiple conductive rods spaced apart near the second connecting plate, and multiple conductive rods spaced apart near the fourth connecting plate.

[0030] Beneficial effects: The multiple conductive rods are spaced apart, which facilitates the fluid medium to enter the electric field from the fluid inlet through the gaps between the multiple conductive rods and flow into the filter module, and then flow out of the electric field through the gaps between the multiple conductive rods.

[0031] In one optional embodiment, the conductor is a conductive plate, and a conductive plate is provided at the fluid inlet, the fluid outlet, the position near the second connecting plate, and the position near the fourth connecting plate, and the conductive plate is provided with flow holes.

[0032] Beneficial effects: The conductive plate is provided with flow holes, which facilitates the fluid medium to enter the electric field from the fluid inlet through the flow holes on the conductive plate and flow to the filter module, and then flow out of the electric field through the flow holes on the conductive plate. Attached Figure Description

[0033] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the connection structure of a dynamic polarization filtration device according to an embodiment of the present invention;

[0035] Figure 2 This is a schematic diagram of the voltage change period of the first conductor group and the second conductor group according to an embodiment of the present invention.

[0036] Figure 3 This is a schematic diagram of the voltage change period of the first conductor group, the second conductor group, and the third conductor group according to an embodiment of the present invention;

[0037] Figure 4 This is a schematic diagram of the connection structure of the first conductor group, the second conductor group, the fourth conductor group, and the fifth conductor group according to an embodiment of the present invention;

[0038] Figure 5 This is a schematic diagram of the connection structure between the housing and the electric field generating device according to an embodiment of the present invention;

[0039] Figure 6 This is a side view showing the connection between the housing and the electric field generating device in an embodiment of the present invention;

[0040] Figure 7 This is a morphological diagram of particulate matter captured by fiber filter media in existing technology.

[0041] Figure 8 This is a morphological diagram of particulate matter captured by a fiber filter medium in an embodiment of the present invention.

[0042] Explanation of reference numerals in the attached figures:

[0043] 1. Electric field generating device; 11. First conductor group; 12. Second conductor group; 13. Third conductor group; 14. Fourth conductor group; 15. Fifth conductor group; 2. Filter module; 3. Voltage source; 4. Housing; 41. First connecting plate; 42. Second connecting plate; 43. Third connecting plate; 44. Fourth connecting plate; 5. Fiber; 6. Particulate matter. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0045] The following is combined Figures 1 to 8 The following describes embodiments of the present invention.

[0046] According to an embodiment of the present invention, a dynamic polarization filtering device is provided, comprising an electric field generating device 1, a filtering module 2, and a voltage source 3; the electric field generating device 1 is adapted to generate an electric field; the filtering module 2 is disposed in the electric field; the voltage source 3 is electrically connected to the electric field generating device 1 and is adapted to apply a voltage to the electric field generating device 1 and control the electric field generating device 1 to periodically change the direction of the electric field around the outer periphery of the filtering module 2.

[0047] The filter module 2 is located in an electric field whose direction changes dynamically. When the fluid medium containing particulate matter 6 flows through the electric field, the particulate matter 6 is controlled by the change in the direction of the electric field force, causing the formed particulate matter chains to be subjected to forces not along the chain direction. This allows the captured particulate matter 6 to settle uniformly on the filter module 2, increasing the capture area and the amount of particulate matter 6 captured. Furthermore, it allows the captured particulate matter 6 to accumulate more tightly on the filter module 2, reducing the phenomenon of particulate matter 6 being carried away by the fluid after being adsorbed on the filter module 2. The captured particulate matter 6 is difficult to detach from the filter module 2, thus improving the overall filtration or separation efficiency of the device. It also slows down the clogging of the pores on the filter module 2, making the increase of the resistance of the filter module 2 to the fluid more slow, thereby extending the service life of the device.

[0048] In one embodiment, the electric field generating device 1 includes a plurality of conductors, which are spaced apart around the outer periphery of the filter module 2. The voltage source 3 has a plurality of voltage output terminals, which are respectively connected to the plurality of conductors one by one. A first portion of the voltage output terminals outputs a first voltage to the corresponding conductor to form a first conductor group 11, and a second portion of the voltage output terminals outputs a second voltage to the corresponding conductor to form a second conductor group 12. The first voltage is greater than the second voltage. The first conductor group 11 and the second conductor group 12 are arranged opposite to each other. The first conductor group 11 and the second conductor group 12 periodically change voltage around the outer periphery of the filter module 2 to form a wandering state.

[0049] Since the first voltage is greater than the second voltage, and the first conductor group 11 and the second conductor group 12 are arranged opposite to each other, there is a potential difference between the first conductor group 11 and the second conductor group 12, which can form an electric field with the direction of electric field pointing from the first conductor group 11 to the second conductor group 12. The arrangement of multiple conductors and multiple voltage output terminals makes it convenient for the voltage output terminals to output the first voltage and the second voltage to the corresponding conductors in sequence as time changes, so that the first conductor group 11 and the second conductor group 12 surround the outer periphery of the filter module 2 and perform periodic voltage changes as time goes by, forming a wandering state, thereby realizing the dynamic change of the electric field direction.

[0050] In a specific implementation, the first conductor group 11 and the second conductor group 12 surround the outer periphery of the filter module 2 and undergo periodic voltage changes over time, as follows: Figure 2 As shown, the black conductors represent the conductors of the first conductor group 11, and the white conductors represent the conductors of the second conductor group 12.

[0051] As time changes, the voltage applied to the conductor at the beginning of the first conductor group 11 changes from a first voltage to a second voltage, becoming the conductor at the end of the second conductor group 12; at the same time, the voltage applied to the conductor at the beginning of the second conductor group 12 changes from a second voltage to a first voltage, becoming the conductor at the end of the first conductor group 11.

[0052] Specifically, the first voltage or the second voltage can be zero.

[0053] In one embodiment, the voltage output terminal of the third part outputs a third voltage to the corresponding conductor to form a third conductor group 13; the third conductor group 13 has two groups, one group is disposed between the wandering head end of the first conductor group 11 and the wandering tail end of the second conductor group 12, and the other group is disposed between the wandering tail end of the first conductor group 11 and the wandering head end of the second conductor group 12; the third voltage is greater than the second voltage and less than the first voltage; the first conductor group 11, the second conductor group 12 and the third conductor group 13 perform periodic voltage changes around the outer periphery of the filter module 2 to form a wandering state.

[0054] Since the third voltage is greater than the second voltage but less than the first voltage, and one group of third conductors 13 is located between the first conductor group 11 and the second conductor group 12, and another group of third conductors 13 is located between the first conductor group 11 and the second conductor group 12, the potential difference between the conductors at the first end of the first conductor group 11 and the conductors at the second end of the second conductor group 12, as well as between the conductors at the second end of the first conductor group 11 and the conductors at the first end of the second conductor group 12, can be avoided to be too large, thereby reducing the risk of electric sparks.

[0055] In a specific implementation, the first conductor group 11, the second conductor group 12, and the third conductor group 13 surround the outer periphery of the filter module 2 and undergo periodic voltage changes over time, as follows: Figure 3 As shown, the black conductors represent the conductors of the first conductor group 11, the white conductors represent the conductors of the second conductor group 12, and the gray conductors represent the conductors of the third conductor group 13.

[0056] As time changes, the voltage applied to the conductor at the beginning of the first conductor group 11 changes from a first voltage to a third voltage, becoming the conductor at the end of a third conductor group 13; simultaneously, the voltage applied to the conductor at the beginning of the third conductor group 13 changes from a third voltage to a second voltage, becoming the conductor at the end of the second conductor group 12; simultaneously, the voltage applied to the conductor at the beginning of the second conductor group 12 changes from a second voltage to a third voltage, becoming the conductor at the end of another third conductor group 13; simultaneously, the voltage applied to the conductor at the beginning of the other third conductor group 13 changes from a third voltage to a first voltage, becoming the conductor at the end of the first conductor group 11.

[0057] Specifically, the third voltage can be zero.

[0058] In one embodiment, each of the conductors is made of a conductor or semiconductor material.

[0059] Both conductors and semiconductor materials can be controlled by the voltage output terminal to exhibit a mutually insulating state. That is, the conductors of the third conductor group 13 can be controlled by the corresponding voltage output terminal to exhibit an insulating state. This can reduce the risk of generating electric sparks between the conductors at the beginning of the first conductor group 11 and the conductors at the end of the second conductor group 12, as well as between the conductors at the end of the first conductor group 11 and the conductors at the beginning of the second conductor group 12.

[0060] In specific implementation methods, such as Figure 3 As shown, the gray conductor represents the conductor of the third conductor group 13, and at this time the conductor of the third conductor group 13 is in an insulating state.

[0061] In one embodiment, the first conductor group 11 includes one or more of the conductors.

[0062] When the first conductor group 11 includes one conductor, it facilitates the connection between the conductor of the first conductor group 11 and the corresponding voltage output terminal, making its structure simpler. When the first conductor group 11, the second conductor group 12 and the third conductor group 13 perform periodic voltage transformation around the outer periphery of the filter module 2, forming a wandering state and thus changing the direction of the electric field, when the first conductor group 11 includes multiple conductors, the change of the electric field direction is more compact and uniform.

[0063] In one embodiment, the second conductor group 12 includes one or more of the conductors.

[0064] When the second conductor group 12 includes one conductor, it facilitates the connection between the conductor of the second conductor group 12 and the corresponding voltage output terminal, making its structure simpler. When the first conductor group 11, the second conductor group 12 and the third conductor group 13 perform periodic voltage transformation around the outer periphery of the filter module 2, forming a wandering state and thus changing the direction of the electric field, when the second conductor group 12 includes multiple conductors, the change of the electric field direction is more compact and uniform.

[0065] In one embodiment, the third conductor group 13 includes one or more of the conductors.

[0066] When the third conductor group 13 includes one conductor, it facilitates the connection between the conductor of the third conductor group 13 and the corresponding voltage output terminal, making its structure simpler. When the first conductor group 11, the second conductor group 12 and the third conductor group 13 perform periodic voltage transformation around the outer periphery of the filter module 2, forming a wandering state and thus changing the direction of the electric field, when the third conductor group 13 includes multiple conductors, the change of the electric field direction is more compact and uniform.

[0067] In one embodiment, the voltage output terminal of the fourth part outputs a fourth voltage to the corresponding conductor to form a fourth conductor group 14; the voltage output terminal of the fifth part outputs a fifth voltage to the corresponding conductor to form a fifth conductor group 15; the fourth conductor group 14 is disposed between the first traveling end of the first conductor group 11 and the second traveling end of the second conductor group 12, and the fifth conductor group 15 is disposed between the traveling end of the first conductor group 11 and the traveling end of the second conductor group 12; the fourth voltage is greater than the fifth voltage, and the fourth conductor group 14 and the fifth conductor group 15 are disposed opposite to each other; the first conductor group 11, the fourth conductor group 14, the second conductor group 12 and the fifth conductor group 15 perform periodic voltage changes around the outer periphery of the filter module 2 to form a traveling state.

[0068] The fourth voltage is greater than the fifth voltage, and the fourth conductor group 14 and the fifth conductor group 15 are arranged opposite to each other, so that there is a potential difference between the fourth conductor group 14 and the fifth conductor group 15. The electric field can be formed from the direction of the fourth conductor group 14 to the direction of the fifth conductor group 15. Since the first conductor group 11 and the second conductor group 12 can form an electric field from the first conductor group 11 to the second conductor group 12, the first conductor group 11, the fourth conductor group 14, the second conductor group 12 and the fifth conductor group 15 perform periodic voltage transformation around the outer periphery of the filter module 2, forming a wandering state, so that the change of the electric field direction is more compact and uniform.

[0069] In a specific implementation, as time changes, the voltage applied to the conductor at the beginning of the first conductor group 11 changes from a first voltage to a fourth voltage, becoming the conductor at the end of the fourth conductor group 14; simultaneously, the voltage applied to the conductor at the beginning of the fourth conductor group 14 changes from a fourth voltage to a second voltage, becoming the conductor at the end of the second conductor group 12; simultaneously, the voltage applied to the conductor at the beginning of the second conductor group 12 changes from a second voltage to a fifth voltage, becoming the conductor at the end of the fifth conductor group 15; simultaneously, the voltage applied to the conductor at the beginning of the fifth conductor group 15 changes from a fifth voltage to a first voltage, becoming the conductor at the end of the first conductor group 11.

[0070] In one embodiment, the fourth conductor group 14 includes one or more of the conductors.

[0071] When the fourth conductor group 14 includes one conductor, it facilitates the connection between the conductor of the fourth conductor group 14 and the corresponding voltage output terminal, making its structure simpler. When the first conductor group 11, the fourth conductor group 14, the second conductor group 12 and the fifth conductor group 15 perform periodic voltage transformations around the outer periphery of the filter module 2, forming a wandering state and thus changing the direction of the electric field, when the fourth conductor group 14 includes multiple conductors, the change in the direction of the electric field is more compact and uniform.

[0072] In one embodiment, the fifth conductor group 15 includes one or more of the conductors.

[0073] When the fifth conductor group 15 includes one conductor, it facilitates the connection between the conductor of the fifth conductor group 15 and the corresponding voltage output terminal, making its structure simpler. When the first conductor group 11, the fourth conductor group 14, the second conductor group 12 and the fifth conductor group 15 perform periodic voltage transformation around the outer periphery of the filter module 2, forming a wandering state and thus changing the direction of the electric field, when the fifth conductor group 15 includes multiple conductors, the change of the electric field direction is more compact and uniform.

[0074] In one embodiment, the voltage applied to the conductor changes over time according to a sine or cosine function.

[0075] Since the voltage applied to a conductor changes with time according to a sine or cosine function, the direction of the electric field also changes periodically with time, making the change of the electric field direction more uniform.

[0076] In specific implementation methods, such as Figure 4As shown, the first conductor group 11, the fourth conductor group 14, the second conductor group 12 and the fifth conductor group 15 each include a conductor, and each conductor is connected to a voltage output terminal.

[0077] Specifically, the conductors of the first conductor group 11 are parallel to the conductors of the second conductor group 12, and the conductors of the fourth conductor group 14 are parallel to the conductors of the fifth conductor group 15. The first, second, fourth, and fifth voltages can be zero at any given moment, but at most three voltages can be zero simultaneously at any given moment, and at most two voltages can always be zero. The changes of the first, second, fourth, and fifth voltages over time satisfy the following:

[0078] U1-U2=Asin(ωt+φ);

[0079] U4-U5=Bcos(ωt+φ);

[0080] Where A, B, ω, and φ are constants, and t is time.

[0081] In one embodiment, the system further includes a housing 4, which includes a first connecting plate 41, a second connecting plate 42, a third connecting plate 43, and a fourth connecting plate 44. The first connecting plate 41, the second connecting plate 42, the third connecting plate 43, and the fourth connecting plate 44 are sequentially connected to form a rectangular cylindrical structure. A fluid inlet and a fluid outlet are respectively provided at both ends of the rectangular cylindrical structure. The filter module 2 is located inside the housing 4. The two ends of the conductor are respectively connected to the first connecting plate 41 and the third connecting plate 43. One or more conductors are provided at the fluid inlet, one or more conductors are provided at the fluid outlet, one or more conductors are provided near the second connecting plate 42, and one or more conductors are provided near the fourth connecting plate 44.

[0082] The housing 4 facilitates the fixed connection of the conductors and provides a certain degree of protection for both the filter module 2 and the conductors. Since the filter module 2 is located inside the housing 4, and one or more conductors are provided at the fluid inlet, one or more conductors at the fluid outlet, one or more conductors are provided near the second connecting plate 42, and one or more conductors are provided near the fourth connecting plate 44, the multiple conductors are distributed at intervals around the outer periphery of the filter module 2. One or more conductors are provided at both the fluid inlet and the fluid outlet, so that the fluid medium enters the electric field from the fluid inlet through one or more conductors and flows into the filter module 2, and then flows out of the electric field through one or more conductors. This facilitates the flow of the fluid medium in the direction of the electric field, thereby allowing the particles 6 in the fluid medium to be controlled by the change in the direction of the electric field force.

[0083] like Figure 6 As shown, in one embodiment of this example, the second connecting plate 42 is disposed on side a, the fourth connecting plate 44 is disposed on side b, the fluid inlet is disposed on side c, the fluid outlet is disposed on side d, and the fluid medium flows from side c to side d; in another embodiment of this example, the second connecting plate 42 is disposed on side a, the fourth connecting plate 44 is disposed on side b, the fluid inlet is disposed on side d, the fluid outlet is disposed on side c, and the fluid medium flows from side d to side c.

[0084] As an alternative implementation, the second connecting plate 42 may be disposed on side c, the fourth connecting plate 44 on side d, the fluid inlet on side a, the fluid outlet on side b, and the fluid medium flows from side a to side b. As another alternative implementation, the second connecting plate 42 may be disposed on side c, the fourth connecting plate 44 on side d, the fluid inlet on side b, the fluid outlet on side a, and the fluid medium flows from side b to side a.

[0085] In a specific implementation, multiple conductors can be arranged according to the shape of the filter material.

[0086] Specifically, filter module 2 has a rectangular structure.

[0087] In one embodiment, the conductor is a conductive rod, with multiple conductive rods spaced apart at the fluid inlet, multiple conductive rods spaced apart at the fluid outlet, multiple conductive rods spaced apart near the second connecting plate 42, and multiple conductive rods spaced apart near the fourth connecting plate 44.

[0088] Multiple conductive rods are spaced apart to facilitate the fluid medium to enter the electric field from the fluid inlet through the gaps between the multiple conductive rods and flow into the filter module 2, and then flow out of the electric field through the gaps between the multiple conductive rods.

[0089] In a specific implementation, multiple conductive rods are arranged in parallel to each other.

[0090] In one embodiment, the conductor is a conductive plate, and a conductive plate is provided at the fluid inlet, the fluid outlet, the position near the second connecting plate 42, and the position near the fourth connecting plate 44, and the conductive plate is provided with flow holes.

[0091] The conductive plate is provided with flow holes, which facilitates the fluid medium to enter the electric field from the fluid inlet through the flow holes on the conductive plate and flow to the filter module 2, and then flow out of the electric field through the flow holes on the conductive plate.

[0092] In a specific implementation, the conductive plate at the fluid inlet is parallel to the conductive plate at the fluid outlet, and the conductive plate near the second connecting plate 42 is parallel to the conductive plate near the fourth connecting plate 44.

[0093] Specifically, multiple conductors can be arranged at uniform intervals or at non-uniform intervals, with the goal of ultimately forming a uniformly distributed electric field.

[0094] Specifically, the filter module 2 can be a cellulose filter element, composed of cellulose fibers 5. Particulate matter 6 can be adsorbed onto the surface of the cellulose fibers 5, exhibiting good filtration efficiency and adsorption performance. For example... Figure 7 As shown, when the direction of the electric field force remains unchanged, the captured particles 6 are unevenly distributed on the surface of the fiber 5, easily forming particle chains; as Figure 8 As shown, under the dynamic change of the direction of the electric field force, the captured particles 6 settle uniformly on the filter module 2, increasing the capture area and the amount of particles 6 captured; and the captured particles 6 can be more tightly packed on the filter module 2.

[0095] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A dynamic polarization filtration device, characterized in that, include: Electric field generating device (1), suitable for forming an electric field; The filter module (2) is disposed in the electric field; A voltage source (3) is electrically connected to the electric field generating device (1) and is adapted to apply voltage to the electric field generating device (1) and control the electric field generating device (1) to periodically change the direction of the electric field around the outer periphery of the filter module (2); The electric field generating device (1) includes multiple conductors, which are spaced apart around the outer periphery of the filter module (2). The voltage source (3) is provided with multiple voltage output terminals, which are respectively connected to the multiple conductors one by one. The first part of the voltage output terminals outputs a first voltage to the corresponding conductor to form a first conductor group (11), and the second part of the voltage output terminals outputs a second voltage to the corresponding conductor to form a second conductor group (12). The first voltage is greater than the second voltage. The first conductor group (11) and the second conductor group (12) are arranged opposite to each other. The first conductor group (11) and the second conductor group (12) perform periodic voltage changes around the outer periphery of the filter module (2) to form a wandering state.

2. The dynamic polarization filtration device according to claim 1, characterized in that, The third part describes the voltage output terminal outputting a third voltage to the corresponding conductor to form a third conductor group (13); the third conductor group (13) has two sets, one set is located between the wandering head end of the first conductor group (11) and the wandering end of the second conductor group (12), and the other set is located between the wandering end of the first conductor group (11) and the wandering head end of the second conductor group (12); the third voltage is greater than the second voltage and less than the first voltage; the first conductor group (11), the second conductor group (12) and the third conductor group (13) perform periodic voltage changes around the outer periphery of the filter module (2) to form a wandering state.

3. The dynamic polarization filtration device according to claim 2, characterized in that, Each of the conductors is made of a conductor or semiconductor material.

4. The dynamic polarization filtration device according to claim 2, characterized in that, The first conductor group (11) includes one or more of the conductors; And / or, the second conductor group (12) includes one or more of the conductors; And / or, the third conductor group (13) includes one or more of the conductors.

5. The dynamic polarization filtration device according to claim 1, characterized in that, The fourth voltage output terminal outputs a fourth voltage to the corresponding conductor to form a fourth conductor group (14); the fifth voltage output terminal outputs a fifth voltage to the corresponding conductor to form a fifth conductor group (15); the fourth conductor group (14) is disposed between the first conductor group (11) and the second conductor group (12), and the fifth conductor group (15) is disposed between the first conductor group (11) and the second conductor group (12); the fourth voltage is greater than the fifth voltage, and the fourth conductor group (14) and the fifth conductor group (15) are disposed opposite to each other; the first conductor group (11), the fourth conductor group (14), the second conductor group (12) and the fifth conductor group (15) perform periodic voltage changes around the outer periphery of the filter module (2) to form a wandering state.

6. The dynamic polarization filtration device according to claim 5, characterized in that, The first conductor group (11) includes one or more of the conductors; And / or, the second conductor group (12) includes one or more of the conductors; And / or, the fourth conductor group (14) includes one or more of the conductors; And / or, the fifth conductor group (15) includes one or more of the conductors.

7. The dynamic polarization filtration device according to any one of claims 1 to 6, characterized in that, The voltage applied to the conductor changes over time in accordance with a sine or cosine function.

8. The dynamic polarization filtration device according to any one of claims 1 to 6, characterized in that, It also includes a housing (4), which includes a first connecting plate (41), a second connecting plate (42), a third connecting plate (43) and a fourth connecting plate (44). The first connecting plate (41), the second connecting plate (42), the third connecting plate (43) and the fourth connecting plate (44) are connected in sequence to form a rectangular cylindrical structure. The two ends of the rectangular cylindrical structure are respectively provided with a fluid inlet and a fluid outlet. The filter module (2) is located inside the housing (4). The two ends of the conductor are respectively connected to the first connecting plate (41) and the third connecting plate (43). One or more conductors are provided at the fluid inlet and one or more conductors are provided at the fluid outlet. One or more conductors are provided near the second connecting plate (42) and one or more conductors are provided near the fourth connecting plate (44).

9. The dynamic polarization filtration device according to claim 8, characterized in that, The conductor is a conductive rod. Multiple conductive rods are spaced apart at the fluid inlet and at the fluid outlet. Multiple conductive rods are spaced apart near the second connecting plate (42) and near the fourth connecting plate (44). And / or, the conductor is a conductive plate, and a conductive plate is provided at the fluid inlet, the fluid outlet, the position near the second connecting plate (42) and the position near the fourth connecting plate (44), and the conductive plate is provided with a flow hole.

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