Static elimination device based on pulsed electric field

Abstract

The invention discloses an electrostatic elimination device based on a pulsed electric field, and relates to the technical field of air treatment.The electrostatic elimination device based on the pulsed electric field comprises a shell, a medium-frequency pulsed electric field structure, a high-frequency pulsed electric field structure and a low-frequency pulsed electric field structure, and a containing space is formed in the shell; the intermediate-frequency pulse electric field structure is arranged in the accommodating space and divides the accommodating space into a top-layer static elimination space and a bottom-layer static elimination space, and the top-layer static elimination space and the bottom-layer static elimination space are communicated through an air passing opening of the intermediate-frequency pulse electric field structure; the high-frequency pulse electric field structure is arranged in the top-layer static elimination space; and the low-frequency pulse electric field structure is arranged in the bottom layer static elimination space. Through three layers of pulse electric field structures with different frequencies, a device capable of performing layered static elimination on air is formed, so that static charges with different electric quantities can be treated in a targeted manner, various static charges can be eliminated in a balanced manner, and the overall effect and efficiency of static elimination are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air treatment, and particularly relates to an electrostatic elimination device based on a pulsed electric field. Background Art

[0002] With the continuous improvement of the requirements for air quality in industrial production and living environments, in the process of air treatment, electrostatic elimination is mainly achieved by setting discharge needles or discharge plates to generate an ionization region at a specific voltage and release positive and negative ions to neutralize static charges in the air. However, the current electrostatic elimination process has uneven effects on static charge elimination. Summary of the Invention

[0003] The main object of the present invention is to propose an electrostatic elimination device based on a pulsed electric field, aiming to improve the balance of static charge elimination in air treatment.

[0004] To achieve the above object, the electrostatic elimination device based on a pulsed electric field proposed by the present invention includes:

[0005] A housing, in which a receiving space is provided;

[0006] An intermediate-frequency pulsed electric field structure, which is arranged in the receiving space and divides the receiving space into a top-layer electrostatic elimination space and a bottom-layer electrostatic elimination space. The top-layer electrostatic elimination space and the bottom-layer electrostatic elimination space are communicated through an air passing opening of the intermediate-frequency pulsed electric field structure;

[0007] A high-frequency pulsed electric field structure, which is arranged in the top-layer electrostatic elimination space and is spaced above the intermediate-frequency pulsed electric field structure;

[0008] A low-frequency pulsed electric field structure, which is arranged in the bottom-layer electrostatic elimination space and is spaced below the intermediate-frequency pulsed electric field structure.

[0009] In one embodiment, the intermediate-frequency pulsed electric field structure includes an electrical box, a partition board, a bracket, an intermediate-frequency pulse module, and a plurality of intermediate-frequency discharge components. The partition board divides the receiving space into the top-layer electrostatic elimination space and the bottom-layer electrostatic elimination space. The electrical box and the bracket are both arranged in the top-layer electrostatic elimination space and are mounted on the partition board. A plurality of the air passing openings are formed on the partition board, and the plurality of air passing openings are spaced along the circumference of the electrical box; the intermediate-frequency pulse module is arranged in the electrical box, the number of the intermediate-frequency discharge components is the same as the number of the air passing openings and they are arranged in one-to-one correspondence, and the plurality of intermediate-frequency discharge components are all arranged on the corresponding air passing openings through the bracket; the plurality of intermediate-frequency discharge components are all electrically connected to the intermediate-frequency pulse module.

[0010] In one embodiment, the intermediate-frequency discharge assembly is inclined vertically in a direction approaching the electrical box from the partition board.

[0011] In one embodiment, the intermediate-frequency discharge assembly includes a plurality of arc-shaped discharge members, and the plurality of arc-shaped discharge members are arranged at intervals in the vertical direction.

[0012] In one embodiment, the middle position of the arc-shaped discharge member arches in a direction away from the electrical box.

[0013] In one embodiment, the high-frequency pulse electric field structure includes a support ring, a high-frequency pulse module, and a plurality of discharge needles. The support ring is mounted on the intermediate-frequency pulse electric field structure, the air intake is arranged outside the support ring, the plurality of discharge needles are all electrically connected to the high-frequency pulse module, the plurality of discharge needles are arranged at intervals along the axial direction of the support ring, each discharge needle is inclined from top to bottom, and the tip of each discharge needle faces the center of the support ring.

[0014] In one embodiment, the low-frequency pulse electric field structure includes a low-frequency pulse module and a plurality of discharge plates. The plurality of discharge plates are all electrically connected to the low-frequency pulse module, the plurality of discharge plates are arranged at intervals along the circumferential direction of the intermediate-frequency pulse electric field structure, the plurality of discharge plates are arranged in the bottom electrostatic elimination space, and are spaced below the intermediate-frequency pulse electric field structure.

[0015] In one embodiment, the housing extends vertically, an air intake is provided at the top of the housing, and a plurality of air outlets are provided on the circumferential side wall of the housing; a fan is provided in the bottom electrostatic elimination space.

[0016] In one embodiment, a filter element is provided at the top of the housing, and the filter element is detachably connected to the high-frequency pulse electric field structure at a position corresponding to the air intake.

[0017] In one embodiment, a diversion plate is formed by the top of the housing being recessed downward, and the air intake is provided at the lowest position of the diversion plate.

[0018] The technical solution of the present invention forms a device for layered static electricity elimination of air by setting three pulsed electric field structures with different frequencies, namely, a medium-frequency pulsed electric field structure, a high-frequency pulsed electric field structure, and a low-frequency pulsed electric field structure, inside the housing. The high-frequency pulsed electric field structure is set at the top layer to quickly process tiny static charges; the medium-frequency pulsed electric field structure is located in the middle to process medium-sized static charges and provide a transition effect; the low-frequency pulsed electric field structure is set at the bottom layer to continuously eliminate residual large static charges. Different amounts of static charges can be processed specifically to evenly eliminate various static charges. Moreover, the air vents provided on the medium-frequency pulsed electric field structure ensure that the air flow can flow smoothly between the layers, forming a continuous static electricity elimination process, and improving the overall effect and efficiency of static electricity elimination during the air treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0020] Figure 1 FIG. is an exploded structural schematic diagram of an embodiment of the static electricity elimination device based on pulsed electric fields provided by the present invention;

[0021] Figure 2 FIG. is an assembled structural schematic diagram of an embodiment of the static electricity elimination device based on pulsed electric fields provided by the present invention;

[0022] Figure 3 FIG. is an internal structural schematic diagram of an embodiment of the static electricity elimination device based on pulsed electric fields provided by the present invention;

[0023] Figure 4 FIG. is a structural schematic diagram of an embodiment of the medium-frequency pulsed electric field structure, high-frequency pulsed electric field structure, and low-frequency pulsed electric field structure related to the present invention;

[0024] Figure 5 FIG. is a structural schematic diagram of an embodiment of the medium-frequency pulsed electric field structure related to the present invention;

[0025] Figure 6 FIG. is a structural schematic diagram of an embodiment of the high-frequency pulsed electric field structure related to the present invention;

[0026] Figure 7 FIG. is a structural schematic diagram of an embodiment of the flow guide plate related to the present invention.

[0027] Explanation of the reference numerals in the drawings:

[0028] 100, housing; 200, intermediate frequency pulsed electric field structure; 300, high frequency pulsed electric field structure; 400, low frequency pulsed electric field structure; 500, fan; 600, filter element; 700, flow deflector; 10, accommodation space; 11, top electrostatic elimination space; 12, bottom electrostatic elimination space; 101, air inlet; 102, air outlet; 21, air passing opening; 210, electrical box; 220, partition board; 230, bracket; 240, intermediate frequency pulse module; 250, intermediate frequency discharge assembly; 251, arc-shaped discharge element; 310, support ring; 320, high frequency pulse module; 330, discharge needle; 410, low frequency pulse module; 420, discharge plate.

[0029] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative position relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel solutions. Taking "A and / or B" as an example, it includes solution A, solution B, or a solution where A and B are satisfied simultaneously. In addition, the technical solutions between the embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present invention.

[0033] With the continuous improvement of the air quality requirements in industrial production and living environments, during the air treatment process, static electricity elimination mainly generates an ionization region by setting discharge needles or discharge plates, releasing positive and negative ions to neutralize the static charges in the air at a specific voltage. However, the current static electricity elimination process has an uneven effect on static charge elimination.

[0034] To solve this technical problem, the present invention proposes a static electricity elimination device based on a pulsed electric field.

[0035] Please refer to Figures 1 to 4 , in an embodiment of the present invention, the static electricity elimination device based on a pulsed electric field includes a housing 100, a medium-frequency pulsed electric field structure 200, a high-frequency pulsed electric field structure 300, and a low-frequency pulsed electric field structure 400. An accommodation space 10 is provided inside the housing 100; the medium-frequency pulsed electric field structure 200 is disposed in the accommodation space 10 and divides the accommodation space 10 into a top-layer static electricity elimination space 11 and a bottom-layer static electricity elimination space 12. The top-layer static electricity elimination space 11 and the bottom-layer static electricity elimination space 12 are communicated through an air passage opening 21 of the medium-frequency pulsed electric field structure 200; the high-frequency pulsed electric field structure 300 is disposed in the top-layer static electricity elimination space 11 and is spaced above the medium-frequency pulsed electric field structure 200; the low-frequency pulsed electric field structure 400 is disposed in the bottom-layer static electricity elimination space 12 and is spaced below the medium-frequency pulsed electric field structure 200.

[0036] It should be noted that the pulse frequency of the medium-frequency pulsed electric field structure 200 is MF, 1 kHz ≤ MF ≤ 100 kHz, so as to generate a large number of ions in a short time and quickly process the air with static charges entering through the air inlet 101 of the housing 100.

[0037] The pulse frequency of the high-frequency pulsed electric field structure 300 is HF, 100 kHz ≤ HF ≤ 1 MHz, which can quickly generate and dissipate ions to process the air with static charges that enters the bottom-layer static electricity elimination space 12 through each air passage opening 21 in the top-layer static electricity elimination space 11 after being processed by the medium-frequency pulsed electric field structure 200.

[0038] The pulse frequency of the low-frequency pulsed electric field structure 400 is LF, 1 Hz ≤ LF ≤ 1 kHz, which can generate ions with a long duration to further eliminate the air with static charges in the bottom-layer static electricity elimination space 12 while providing a continuous background ionization effect, and then discharge the air after static electricity elimination through the air outlet 102.

[0039] In addition, the medium-frequency pulsed electric field structure 200 is used to process medium-sized static charges and provide a good transition effect between the high-frequency pulsed electric field structure 300 and the low-frequency pulsed electric field structure 400. The high-frequency pulsed electric field structure 300 can generate a rapidly changing electric field, which is beneficial to processing fine particles and local high-concentration static electricity in the air.

[0040] Specifically, an accommodation space 10 is provided inside the housing 100. The intermediate-frequency pulsed electric field structure 200 is disposed in the accommodation space 10, dividing the accommodation space 10 into an upper top electrostatic elimination space 11 and a lower bottom electrostatic elimination space 12. A plurality of air inlets 21 are provided on the intermediate-frequency pulsed electric field structure 200 to keep the top electrostatic elimination space 11 and the bottom electrostatic elimination space 12 in communication. The high-frequency pulsed electric field structure 300 is disposed in the top electrostatic elimination space 11 and is kept at a certain distance from the intermediate-frequency pulsed electric field structure 200. The low-frequency pulsed electric field structure 400 is horizontally disposed in the bottom electrostatic elimination space 12 and is also kept at a certain distance from the intermediate-frequency pulsed electric field structure 200. Together, they form a three-layer pulsed electric field that can eliminate static charges with different amounts of charge in the air in a layered manner.

[0041] More specifically, when the air flow containing static charges enters the device, it first passes through the high-frequency pulsed electric field structure 300, and the high-frequency pulsed electric field can effectively eliminate static charges with a relatively small amount of charge. Subsequently, the air flow enters the bottom electrostatic elimination space 12 through the air inlet 21 of the intermediate-frequency pulsed electric field structure 200, and the intermediate-frequency pulsed electric field structure 200 eliminates static charges with a medium amount of charge. Finally, the air flow passes through the low-frequency pulsed electric field structure 400, and the low-frequency pulsed electric field can eliminate the remaining static charges with a relatively large amount of charge. The layered elimination method can adopt pulsed electric fields with different frequencies for static charges with different amounts of charge, improving the balance and efficiency of static charge elimination.

[0042] In the technical solution provided by the present invention, by disposing three pulsed electric field structures with different frequencies, namely the intermediate-frequency pulsed electric field structure 200, the high-frequency pulsed electric field structure 300, and the low-frequency pulsed electric field structure 400, inside the housing 100, a device capable of performing layered electrostatic elimination on air is formed. The high-frequency pulsed electric field structure 300 is disposed at the top layer for quickly processing tiny static charges; the intermediate-frequency pulsed electric field structure 200 is located in the middle, processing medium-sized static charges and providing a transition effect; the low-frequency pulsed electric field structure 400 is disposed at the bottom layer for continuously eliminating the remaining large static charges. Static charges with different amounts of charge can be processed specifically to evenly eliminate various static charges. Moreover, the air inlets 21 provided on the intermediate-frequency pulsed electric field structure 200 ensure that the air flow can flow smoothly between the layers, forming a continuous electrostatic elimination process and improving the overall effect and efficiency of electrostatic elimination during the air treatment process.

[0043] Please continue to refer to Figure 1 and Figure 3 ,and refer to Figure 5, in an embodiment of the present invention, the intermediate frequency pulse electric field structure 200 includes an electrical box 210, a partition 220, a bracket 230, an intermediate frequency pulse module 240, and a plurality of intermediate frequency discharge components 250. The partition 220 divides the accommodation space 10 into a top static elimination space 11 and a bottom static elimination space 12. The electrical box 210 and the bracket 230 are both arranged in the top static elimination space 11 and mounted on the partition 220. A plurality of air vents 21 are formed on the partition 220, and the plurality of air vents 21 are arranged at intervals along the circumference of the electrical box 210; the intermediate frequency pulse module 240 is arranged in the electrical box 210. The number of the intermediate frequency discharge components 250 is the same as that of the air vents 21 and they are arranged in one-to-one correspondence. The plurality of intermediate frequency discharge components 250 are all arranged on the corresponding air vents 21 through the bracket 230; the plurality of intermediate frequency discharge components 250 are all electrically connected to the intermediate frequency pulse module 240.

[0044] It should be noted that the intermediate frequency pulse module 240 is a prior art.

[0045] Specifically, the electrical box 210 and the bracket 230 are installed on the partition 220 and are located in the top static elimination space 11. An intermediate frequency pulse module 240 is arranged in the electrical box 210 for generating an intermediate frequency pulse electric field. A plurality of air vents 21 are formed on the partition 220, and these air vents 21 are evenly distributed along the circumference of the electrical box 210 to ensure that the air flow can evenly flow from the top static elimination space 11 to the bottom static elimination space 12. An intermediate frequency discharge component 250 is correspondingly arranged on each air vent 21. These intermediate frequency discharge components 250 are fixed on the air vents 21 through the bracket 230 and are electrically connected to the intermediate frequency pulse module 240 in the electrical box 210. The intermediate frequency pulse electric field can effectively perform static elimination treatment on the air flow when it passes through the air vents 21. Since the intermediate frequency discharge components 250 and the air vents 21 are in one-to-one correspondence and are evenly distributed around the electrical box 210, it can be ensured that all the passing air flows can be affected by the intermediate frequency pulse electric field. At the same time, by centrally arranging the intermediate frequency pulse module 240 in the electrical box 210, the circuit connection can be simplified, and the reliability and maintenance convenience of the device can be improved. That is to say, by arranging a plurality of air vents 21 on the partition 220 and correspondingly arranging an intermediate frequency discharge component 250 on each air vent 21, uniform treatment of the air flow can be achieved, and the problem of uneven static elimination effect can be avoided. At the same time, this structure is also convenient for adjustment and maintenance, and the number and distribution of the intermediate frequency discharge components 250 can be adjusted according to actual needs to adapt to different application scenarios. It can not only effectively perform static elimination treatment on the passing air flow, but also ensure the smooth flow of the air flow inside the device.

[0046] Please continue to refer to Figure 5 , in an embodiment of the present invention, the intermediate frequency discharge component 250 is inclined upward from the partition 220 towards the electrical box 210.

[0047] Specifically, the intermediate-frequency discharge component 250 is not arranged perpendicular to the partition plate 220, but is inclined at a certain angle. This inclined arrangement makes the upper end of the intermediate-frequency discharge component 250 face the electrical box 210, and the lower end face the bottom electrostatic elimination space 12. Since the upper end of the intermediate-frequency discharge component 250 faces the electrical box 210, the connection distance with the intermediate-frequency pulse module 240 can be shortened, circuit loss can be reduced, and the electric field strength and electrostatic elimination efficiency can be improved. Secondly, the inclined arrangement enables the intermediate-frequency discharge component 250 to better cover the air flow passing through the air vent 21, increasing the contact area and time between the air flow and the electric field, thereby improving the electrostatic elimination effect.

[0048] In addition, this inclined structure can also guide the flow direction of the air flow. When the static-charged air flow passes through the air vent 21 from the top electrostatic elimination space 11, the inclined intermediate-frequency discharge component 250 can, to a certain extent, guide the air flow to flow towards the bottom electrostatic elimination space 12 while performing electrostatic elimination treatment on it. This guiding effect can reduce the turbulence of the air flow at the air vent 21, make the air flow flow more smoothly towards the bottom electrostatic elimination space 12, and thus improve the electrostatic elimination efficiency of the entire device. It effectively improves the balance and efficiency of electrostatic elimination.

[0049] In an embodiment of the present invention, the intermediate-frequency discharge component 250 includes a plurality of arc-shaped discharge members 251, and the plurality of arc-shaped discharge members 251 are arranged at intervals in the vertical direction.

[0050] Specifically, each intermediate-frequency discharge component 250 is composed of a plurality of arc-shaped discharge members 251, and the plurality of arc-shaped discharge members 251 are arranged at intervals in the vertical direction. The arc-shaped discharge member 251 can be an arc-shaped metal wire or an arc-shaped metal sheet, and its radian can be adjusted according to the shape and size of the air vent 21. The arc-shaped structure increases the discharge area. Compared with a straight-line discharge member, it can provide a larger discharge surface in the same space, thereby improving the electrostatic elimination efficiency. Secondly, the arc-shaped structure can better adapt to the flow of the air flow, reduce the air flow resistance, and at the same time increase the contact time between the air flow and the discharge area.

[0051] The structure in which the plurality of arc-shaped discharge members 251 are arranged at intervals in the vertical direction forms a three-dimensional discharge area. When the static-charged air flow passes through the air vent 21, it will sequentially pass through multiple layers of arc-shaped discharge members 251. This multi-layer structure ensures that the static charges in the air flow can be fully processed. Even if some static charges are not completely eliminated when passing through the first layer of arc-shaped discharge members 251, they can be further processed in the subsequent layers.

[0052] In addition, the spaced arrangement of the arc-shaped discharge members 251 can also generate an eddy current effect. When the air flow passes through the spaced arc-shaped discharge members 251, a small-scale eddy current will be formed. This eddy current can increase the contact time and area between the air flow and the discharge area, further improving the static electricity elimination effect. At the same time, the eddy current can also promote the mixing of the air flow, enabling the charged gas to be more evenly distributed in the discharge area and avoiding the situation of uneven static electricity elimination.

[0053] In the embodiment of the present invention, the middle position of the arc-shaped discharge member 251 is arched towards the direction away from the electrical box 210.

[0054] Specifically, each arc-shaped discharge member 251 forms an arch towards the underlying static electricity elimination space 12 at its middle position. The middle part of the arc-shaped discharge member 251 is closer to the center of the air flow channel than the two ends, so as to obtain a better static electricity elimination effect.

[0055] In addition, the arched structure can guide the air flow to form a specific flow pattern. When the air flow encounters the arched middle part, it will be divided into two strands and flow along both sides of the arc-shaped discharge member 251 respectively. This shunting effect can reduce the turbulence of the air flow, making the air flow more evenly distributed in the entire discharge area, thereby improving the balance of static electricity elimination.

[0056] Furthermore, the arched structure can also generate a local high-intensity electric field. Since the arched part is closer to the center of the air flow than the two ends, the electric field intensity here will be relatively higher. This local high-intensity electric field can more effectively handle the high-concentration static charges in the air flow, further improving the static electricity elimination effect.

[0057] Please continue to refer to Figure 1 and Figure 3 and refer to Figure 6 In the embodiment of the present invention, the high-frequency pulse electric field structure 300 includes a support ring 310, a high-frequency pulse module 320, and a plurality of discharge needles 330. The support ring 310 is erected on the intermediate-frequency pulse electric field structure 200. The air passing opening 21 is arranged outside the support ring 310. A plurality of discharge needles 330 are all electrically connected to the high-frequency pulse module 320. The plurality of discharge needles 330 are arranged at intervals along the axial direction of the support ring 310. Each discharge needle 330 is inclined downward from top to bottom, and the tip of each discharge needle 330 faces the center of the support ring 310.

[0058] It should be noted that the high-frequency pulse module 320 is a prior art.

[0059] Specifically, the support ring 310 is mounted on the intermediate frequency pulsed electric field structure 200 to form an annular structure. The air inlet 21 is arranged outside the support ring 310, so that air flow can enter from the outside of the support ring 310, pass through the discharge area, and then enter the bottom electrostatic elimination space 12 through the air inlet 21 of the intermediate frequency pulsed electric field structure 200. The high-frequency pulse module 320 can be installed on the support ring 310 to provide high-frequency pulse power supply for a plurality of discharge needles 330.

[0060] A plurality of discharge needles 330 are arranged at intervals along the axial direction of the support ring 310 to form an annular discharge area. Each discharge needle 330 is inclined downward from top to bottom, and the tip thereof faces the center of the support ring 310. A conical discharge area is formed, which can more effectively cover the air flow passing through the support ring 310.

[0061] The support ring 310 enables the high-frequency pulsed electric field structure 300 to be stably mounted on the intermediate frequency pulsed electric field structure 200, ensuring a stable distance between the two electric field structures and avoiding possible interference. Secondly, setting the air inlet 21 outside the support ring 310 ensures that all the air flow entering the device can pass through the high-frequency discharge area, improving the efficiency of electrostatic elimination.

[0062] A plurality of discharge needles 330 form an electric field area that contracts from top to bottom towards the center of the intermediate frequency pulsed electric field structure 200. When the charged air flow enters, it will first contact the peripheral electric field and then gradually enter the central area with a higher electric field intensity. This progressive electrostatic elimination process can more effectively process static charges with different charge amounts, improving the balance of electrostatic elimination.

[0063] In addition, the discharge needles 330 are arranged at intervals along the axial direction of the support ring 310, ensuring that the entire annular area can be uniformly treated for electrostatic elimination. Avoiding the dead corners of electrostatic elimination further improves the effect of electrostatic elimination.

[0064] Please continue to refer to Figure 1 and Figure 3 In the embodiment of the present invention, the low-frequency pulsed electric field structure 400 includes a low-frequency pulse module 410 and a plurality of discharge plates 420. The plurality of discharge plates 420 are all electrically connected to the low-frequency pulse module 410. The plurality of discharge plates 420 are arranged at intervals along the circumferential direction of the intermediate frequency pulsed electric field structure 200. The plurality of discharge plates 420 are arranged in the bottom electrostatic elimination space 12 and are spaced below the intermediate frequency pulsed electric field structure 200.

[0065] It should be noted that the low-frequency pulse module 410 is a prior art.

[0066] Specifically, the low-frequency pulse module 410 is responsible for generating a low-frequency pulsed electric field. A plurality of discharge plates 420 are all electrically connected to the low-frequency pulse module 410. The discharge plates 420 are arranged in the bottom electrostatic elimination space 12 and maintain a certain vertical distance from the intermediate-frequency pulsed electric field structure 200.

[0067] The plurality of discharge plates 420 are arranged at intervals along the circumferential direction of the intermediate-frequency pulsed electric field structure 200, forming a segmented annular low-frequency pulsed electric field region. This ensures that when the air flow passes through the bottom electrostatic elimination space 12, it can uniformly contact the low-frequency pulsed electric field, avoiding unevenness in the electrostatic elimination effect.

[0068] Secondly, the discharge plates 420 are arranged at intervals below the intermediate-frequency pulsed electric field structure 200. This vertical interval arrangement forms a three-dimensional electrostatic elimination region. When the air flow passes through the intermediate-frequency pulsed electric field structure 200, it will continue to flow through the low-frequency pulsed electric field region and undergo further electrostatic elimination treatment. This multi-level treatment method can effectively eliminate residual static charges, especially having a good treatment effect on static charges with a large charge amount.

[0069] In addition, the discharge plates 420 of the low-frequency pulsed electric field structure 400 are electrically connected to the low-frequency pulse module 410, enabling control of the electric field intensity and frequency of the discharge plates 420. This controllability allows the low-frequency pulsed electric field structure 400 to flexibly adjust its operating parameters according to different air flow characteristics and static charge conditions, further improving the efficiency and adaptability of electrostatic elimination.

[0070] In an embodiment of the present invention, the housing 100 extends vertically. An air inlet 101 is provided at the top of the housing 100, and a plurality of air outlets 102 are provided on the circumferential side wall of the housing 100; a blower 500 is provided in the bottom electrostatic elimination space 12.

[0071] Specifically, the housing 100 has a vertically extending cylindrical structure. An air inlet 101 is provided at its top, and a plurality of air outlets 102 are evenly distributed on the circumferential side wall. This forms an air flow channel from top to bottom. The air inlet 101 is located at the top, enabling the charged air to first enter the top electrostatic elimination space 11. The plurality of air outlets 102 are distributed on the side wall, ensuring that the treated air can be evenly discharged from the device.

[0072] The blower 500 provided in the bottom electrostatic elimination space 12 serves to drive the air flow. The position of the blower 500 can be adjusted according to actual needs. For example, it can be set at the bottom or side of the bottom electrostatic elimination space 12. The rotation speed of the blower 500 can be adjusted according to actual needs to control the air flow speed and the electrostatic elimination efficiency.

[0073] The structure of the vertically extending housing 100 utilizes the gravity effect, enabling the air flow to naturally flow downward from the top, reducing the resistance of the air flow inside the device. The air inlet 101 at the top ensures that the static electricity-carrying air first passes through the high-frequency pulse electric field structure 300, which is beneficial for quickly eliminating small particles and local high-concentration static electricity.

[0074] A plurality of air outlets 102 are evenly distributed on the side walls, which helps to maintain the air pressure balance inside the device and avoid the phenomenon of local air flow stagnation. And it can increase the contact time of the air flow with each layer of static electricity elimination structure, improving the static electricity elimination efficiency.

[0075] The fan 500 provided in the bottom static electricity elimination space 12 can not only drive the air flow, but also generate a certain negative pressure, which helps to suck the static electricity-carrying air into the device from the air inlet 101. The presence of the fan 500 can also enhance the turbulent effect of the air flow, promoting the collision between charged particles and ions, and further improving the static electricity elimination effect.

[0076] Please continue to refer to Figures 1 to 3 , in the embodiment of the present invention, a filter element 600 is provided at the top of the housing 100, and the filter element 600 is detachably connected to the high-frequency pulse electric field structure 300 at the position corresponding to the air inlet 101.

[0077] Specifically, the filter element 600 is arranged on the top of the support ring 310 in the high-frequency pulse electric field structure 300. The support ring 310 is of a ring structure, and its inner ring forms an air inlet channel. The filter element 600 is detachably connected to the top of the support ring 310, so that after the air flow in the external environment passes through the filter element 600, it enters the top static electricity elimination space 11 downward from the inner ring of the support ring 310. The filter element 600 can be a mesh structure or a porous material, which is used to filter large particle impurities in the air.

[0078] The setting of the filter element 600 can effectively remove large particle impurities entering the device, prevent the impurities from accumulating on the high-frequency pulse electric field structure 300, and affect the static electricity elimination effect. Secondly, the filtered air flow is cleaner, which is beneficial to improving the efficiency and uniformity of static electricity elimination.

[0079] The detachable connection makes the filter element 600 easy to clean and replace. When the filter element 600 accumulates a large amount of impurities, it can be conveniently removed for cleaning or replaced with a new filter element 600 to ensure that the device maintains good filtering effect and static electricity elimination performance for a long time. This extends the service life of the device and reduces the maintenance cost.

[0080] Please continue to refer to Figures 1 to 3 , and refer to Figure 7 , in the embodiment of the present invention, the top of the housing 100 is recessed downward to form a flow guide plate 700, and the air inlet 101 is arranged at the lowest point of the flow guide plate 700.

[0081] Specifically, the top of the housing 100 is not a planar structure, but is recessed downward to form a deflector 700. This deflector 700 presents a shape that gradually descends from the top edge of the housing 100 towards the center. At the lowest point of the deflector 700, that is, the deepest part of the recess, an air inlet 101 is provided. The air inlet 101 can be circular, oval or other suitable shapes, and its size can be adjusted according to actual needs.

[0082] When the air containing static charges approaches the device, it will naturally flow along the inclined surface of the deflector 700 towards the central air inlet 101. This is to increase the efficiency of air entering the device and reduce the residence time of air outside the device.

[0083] Secondly, setting the air inlet 101 at the lowest point of the deflector 700 can utilize the gravitational force to enhance the air flow. Particulate matter with static charges is often slightly heavier than air and will naturally sink during the flow process. The inclined structure of the deflector 700 and the air inlet 101 at the lowest point just match this characteristic, and can more effectively capture and guide these charged particulate matters into the device.

[0084] In addition, this structure can also prevent external debris from entering the device to a certain extent. Since the air inlet 101 is located at the lowest point of the recess, large debris is not easily directly dropped into the air inlet 101.

[0085] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied in other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A static elimination device based on a pulse electric field, characterized in that: include: A housing having a receiving space therein; A medium-frequency pulse electric field structure, wherein the medium-frequency pulse electric field structure is disposed in the accommodation space and divides the accommodation space into a top-layer static elimination space and a bottom-layer static elimination space, wherein the top-layer static elimination space and the bottom-layer static elimination space are connected through an air outlet of the medium-frequency pulse electric field structure; A high-frequency pulse electric field structure, wherein the high-frequency pulse electric field structure is arranged in the top static elimination space and is arranged above the medium-frequency pulse electric field structure at intervals; A low-frequency pulse electric field structure is arranged in the bottom static elimination space and is spaced below the medium-frequency pulse electric field structure.

2. The static elimination device based on pulse electric field according to claim 1, characterized in that: The intermediate frequency pulse electric field structure includes an electrical box, a partition, a bracket, an intermediate frequency pulse module and a plurality of intermediate frequency discharge components. The partition divides the accommodating space into the top-layer static electricity elimination space and the bottom-layer static electricity elimination space. The electrical box and the bracket are both arranged in the top-layer static electricity elimination space and installed on the partition. The partition is provided with a plurality of air vents, and the plurality of air vents are arranged at intervals along the circumference of the electrical box. The intermediate frequency pulse module is arranged in the electrical box. The number of the intermediate frequency discharge components is consistent with the number of the air vents and is arranged one-to-one. The plurality of intermediate frequency discharge components are all arranged on the corresponding air vents through the bracket. The plurality of intermediate frequency discharge components are all electrically connected to the intermediate frequency pulse module.

3. The static elimination device based on pulse electric field according to claim 2, characterized in that: The intermediate frequency discharge assembly is vertically arranged to be inclined from the partition toward the electrical box.

4. The static elimination device based on pulse electric field according to claim 3, characterized in that: The intermediate frequency discharge assembly comprises a plurality of arc-shaped discharge members, and the plurality of arc-shaped discharge members are arranged at intervals in the vertical direction.

5. The static elimination device based on pulse electric field according to claim 4, characterized in that: The middle position of the arc-shaped discharge member is arched in a direction away from the electrical box.

6. The static elimination device based on a pulse electric field according to any one of claims 1 to 5, characterized in that: The high-frequency pulse electric field structure includes a support ring, a high-frequency pulse module and a plurality of discharge needles. The support ring is mounted on the medium-frequency pulse electric field structure, the air outlet is arranged on the outside of the support ring, and the plurality of discharge needles are electrically connected to the high-frequency pulse module. The plurality of discharge needles are arranged at intervals along the axial direction of the support ring, and each of the discharge needles is arranged tilted from top to bottom, and the tip of each discharge needle is arranged toward the center of the support ring.

7. The static elimination device based on a pulse electric field according to any one of claims 1 to 5, characterized in that: The low-frequency pulse electric field structure includes a low-frequency pulse module and multiple discharge plates, the multiple discharge plates are electrically connected to the low-frequency pulse module, the multiple discharge plates are arranged at intervals along the circumference of the medium-frequency pulse electric field structure, and the multiple discharge plates are arranged in the bottom static elimination space and are arranged at intervals below the medium-frequency pulse electric field structure.

8. The static elimination device based on a pulse electric field according to any one of claims 1 to 5, characterized in that: The shell extends vertically, an air inlet is arranged on the top of the shell, and a plurality of air outlets are arranged on the circumferential side wall of the shell; a fan is arranged in the static electricity elimination space of the bottom layer.

9. The static elimination device based on pulse electric field according to claim 8, characterized in that: A filter is arranged on the top of the shell, and the filter is detachably connected to the high-frequency pulse electric field structure at a position corresponding to the air inlet.

10. The static elimination device based on pulse electric field according to claim 8, characterized in that: The top of the shell is recessed downward to form a guide plate, and the air inlet is arranged at the lowest point of the guide plate.

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