Scraping and sucking integrated electrostatic dust collection module and control method thereof

Abstract

The invention discloses a scraping and sucking integrated electrostatic dust collection module and a control method thereof. A dust collection electrode assembly is arranged between a left electrode plate support and a right electrode plate support; a dust scraping plate of the self-cleaning mechanism is provided with a left dust scraping plate and a right dust scraping plate on the two sides of the dust collecting plate respectively; a dust scraping strip is arranged between dust scraping grooves and attached to the upper and lower surfaces of the dust removing electrode assembly; the screw rod is opposite in spiral direction corresponding to the left dust scraping stroke and the right dust scraping stroke. According to the dust removal module, the design of a scraping and sucking integrated electrostatic dust removal electric field is achieved, and the excellent electrostatic dust removal effect is achieved by optimizing the distance between electrode plates, the thickness of the electrode plates and the voltage of a power source on the basis of the size of an original high-voltage electrostatic filter element; a bidirectional self-cleaning dust scraping plate is arranged, unique scraping brush design and dust collection cavity design are achieved, efficient dust removal, sterilization and dust discharge are achieved, and the dust collector is durable and free of manual maintenance; according to the control method, intelligent operation, smudginess judgment, self-fault detection and the like of the module in the whole life cycle and processing can be achieved.

Description

Technical Field

[0001] The present application belongs to the technical field of high-voltage electrostatic dust removal, and specifically relates to an integrated scraping and suction electrostatic dust removal module and a control method thereof. Background Art

[0002] Electrostatic dust removal is a method of gas dust removal. Its working principle is to first use the principle of ionization electrode corona discharge to generate a high-voltage DC electric field, causing the gas molecules in the air to ionize, generating a large number of electrons and ions, so that the dust particles in the surrounding dirty gas are charged; the charged dust-containing gas then passes through the dust collection component and is adsorbed by the dust collection plate with the opposite charge, achieving the dust collection effect, so that the polluted air is purified. At the same time, the high-intensity voltage captures the bacterial particles, and the instantaneous conduction breaks down the cell wall composed of protein, so this method also has the effect of sterilization and disinfection.

[0003] The advantage of electrostatic dust removal devices based on this working principle is that they have no consumable air filters. They are widely used in space purification and disinfection in smart buildings and public places, and are also used for household dust removal and sterilization.

[0004] However, after a period of use, dust is easily accumulated on the dust collecting plate of the filter element, which affects the dust removal efficiency and even causes a series of safety problems such as sparking and creeping. Therefore, regular manual cleaning and maintenance are required, which incurs certain labor costs. At present, the main cleaning method for high-voltage electrostatic dust removal devices in the household market is water washing. After water washing, it needs to be dried or wait for it to be completely dry before installation and use to avoid safety problems after starting up the machine. The maintenance process is relatively troublesome and requires regular disassembly, which is time-consuming and labor-intensive. Summary of the invention

[0005] In view of the above problems, the present application provides an integrated scraping and suction electrostatic dust removal module and a control method thereof, which can achieve manual cleaning and maintenance-free operation and improve user experience.

[0006] In the first aspect, the present application provides an integrated scraping and suction electrostatic dust removal module, including a shell, a dust removal electrode assembly, a self-cleaning mechanism and a controller, the shell is a frame-shaped shell that passes through from front to back, the dust removal electrode assembly is horizontally arranged in the shell, and the self-cleaning mechanism is arranged on the dust removal electrode assembly; the shell is provided with a left cover, a left electrode sheet support, an upper support cover, a right electrode sheet support, a right cover and a lower support cover, the left cover, the upper support cover, the right cover and the lower support cover form a square shell, the left electrode sheet support and the right electrode sheet support are respectively arranged on the inner sides of the left cover and the right cover; the dust removal electrode assembly is arranged between the left electrode sheet support and the right electrode sheet support; the self-cleaning mechanism is provided with a dust collecting plate, a scraping plate and a driving group Part, the dust collecting plate is arranged in the middle part of the shell, the dust collecting plate is penetrated by a dust collecting groove corresponding to the dust removal electrode assembly, a dust collecting cavity is arranged at the rear side end of the dust collecting plate, dust collecting holes are arranged on both sides of the dust collecting cavity corresponding to the dust collecting grooves, a dust suction port is arranged on the rear side of the dust collecting plate to communicate with the dust collecting cavity, a sealing strip is arranged between the dust collecting plate and the scraper plate on the rear side of the dust collecting hole; the scraper plate is respectively provided with a left scraper plate and a right scraper plate on both sides of the dust collecting plate, a dust scraping groove is penetrated by the dust scraping plate corresponding to the dust removal electrode assembly, a dust scraping strip is arranged between the dust scraping grooves and is fitted with the upper and lower surfaces of the dust removal electrode assembly; the driving assembly controls the scraper plate to move back and forth synchronously toward the dust collecting plate; the dust removal electrode assembly and the driving assembly are electrically connected to the controller.

[0007] In some embodiments, the drive assembly is provided with a screw, a screw seat, a slider, a guide rod, a synchronous wheel, a synchronous belt and a reduction motor. The screw is horizontally arranged on opposite sides of the outer shell, and the screw seats are respectively arranged on the left electrode sheet support, the right electrode sheet support and the dust collecting plate and are connected to the screw. The slider is arranged on the left scraper plate and the right scraper plate and is connected to the screw. The spiral directions of the screw corresponding to the left scraper plate and the right scraper stroke are opposite, the guide rods are arranged on both sides of the screw and are connected to the outer shell, the reduction motor is fixed to one side end of the outer shell, and the synchronous wheels are respectively connected to the screw and the reduction motor, and are linked to each other through a synchronous belt.

[0008] In some embodiments, the dust removal electrode assembly is provided with an electrostatic plate, an ionization wire, a high-voltage connecting plate, a grounding connecting plate and an ionization connecting plate. The electrostatic plates are horizontally and evenly arranged between the left electrode plate support and the right electrode plate support. The high-voltage connecting plate, the grounding connecting plate and the ionization connecting plate are respectively vertically arranged on the outer surfaces of the left electrode plate support and the right electrode plate support. The electrostatic plates are sequentially connected with the high-voltage connecting plate and the grounding connecting plate to form a high-voltage plate and a grounding plate. Several of the high-voltage plates or grounding plates extend to the front end to form a uniformly distributed ionization space. The number of electrostatic plates behind the ionization space is an odd number. The ionization wire is arranged in each ionization space and connected to the ionization connecting plates at both ends. One end of the ionization connecting plate is a tension spring connecting plate and the other end is a hook connecting plate connected to the ionization wire.

[0009] In some embodiments, the plate spacing of the electrostatic plate is 6.5-8mm, the thickness of the electrostatic plate is 0.6-1mm, the length is not more than 350mm, the width is 110-150mm, the extension length of the high-voltage plate or the grounding plate is 20-40mm; the voltage of the electrostatic plate is 7KV-10KV.

[0010] In some embodiments, the scraper strip is provided with a slot, a pressure strip and a scraper blade. The slot is respectively arranged between two scraper grooves. A trumpet mouth is arranged at the outer end of the slot. The pressure strip matches the shape of the slot. The middle part of the scraper blade is fixed in the slot by the pressure strip, and the outer end of the scraper blade is fitted with the electrostatic plates on the upper and lower sides.

[0011] In some embodiments, the scraper blade is a PET film or other insulating, wear-resistant and corrosion-resistant material, and the horizontal angle of the free end of the scraper blade is 15°-45°.

[0012] In some embodiments, a "V"-shaped protrusion is provided between the dust collecting grooves corresponding to the scraping plates; the two ends of the dust collecting grooves are symmetrical trumpet openings, the outer end opening height of the trumpet opening is 7.6-8mm, and the inner end opening height is 4-5mm; a sealing strip is provided between the dust collecting plate and one side end of the scraping plate; the thickness of the sealing strip is 3.8-4.2mm.

[0013] In some embodiments, a tensioning wheel is provided on one side of the synchronous belt, and the tensioning wheel is arranged between the two synchronous wheels. The tensioning wheel is provided with a slide rail, a sliding block and an adjusting screw. The slide rail is fixed on the outer shell, the sliding block is arranged on the slide rail, the tensioning wheel is arranged on the sliding block, and the adjusting screw is arranged at one end of the slide rail and connected to the sliding block.

[0014] In a second aspect, the present application provides a control method for an integrated scraping and suction electrostatic dust removal module, comprising the following steps:

[0015] 1) Obtain the current signal of the electrostatic plate in real time;

[0016] 2) determining whether the current signal meets the self-cleaning start condition, and if not, starting the adaptive voltage regulation;

[0017] 3) If satisfied, the obtained current signal is compared with the preset interval value to determine the degree of dirtiness of the electrostatic plate;

[0018] 4) Start the dust removal module, and control the number of times the self-cleaning scraper head works and the gear position of the dust exhaust fan according to the determined dirt level.

[0019] In some embodiments of the present application, the step 2) starts the adaptive voltage regulation by starting the voltage regulator, obtaining the air dust pollution data according to the sensor at the front end of the module, judging the air quality level, and judging whether to start the intelligent voltage regulation in combination with the wind speed. If so, it starts, otherwise it ends and waits for the next start.

[0020] In some embodiments of the present application, the voltage regulation includes adjusting the ionization voltage between 7KV-10KV and adjusting the electrostatic plate voltage between 4KV-5KV. After the self-cleaning and dust removal is completed, the adaptive voltage regulation function adjusts the ionization voltage to the standard preset value output of 8KV and the electrostatic plate voltage to the standard preset output value of 4KV.

[0021] According to experiments, when there are a lot of insulating particles in the dust accumulated on the electrostatic plate, the current I d decreases, and when there are more conductive particles, the current I d In some embodiments of the present application, the self-cleaning module is started according to the electrostatic plate I after the voltage adjustment. d The value fluctuation range exceeds the preset range of ±20%. At the same time, the electrostatic plate is divided into two levels: light and heavy.

[0022] In some embodiments of the present application, the dust removal process also includes fault identification, which is carried out by sending a low-voltage pulse to the electrostatic plate, obtaining the pulse reflection waveform and reflection time, and comparing them with the standard value. When a certain difference is reached, the type of fault is determined, and the fault types include open circuit, severe dirt, and breakdown.

[0023] The open circuit (disconnection) waveform is a full reflection waveform, the breakdown waveform is an alternating waveform reflection, and the severe contamination is a small amplitude reflection.

[0024] In some embodiments of the present application, the dust removal process also includes a fault identification step, specifically, adding a low-voltage pulse module to apply a low-voltage pulse to the electrostatic plate; recording the waveform of each pulse; comparing the waveform of each pulse; and determining a fault if the difference value is greater than a preset range.

[0025] Beneficial effects of the present application: The dust removal module realizes the design of an integrated scraping and suction electrostatic dust removal electric field, and achieves excellent electrostatic dust removal effect by optimizing the electrode sheet spacing, electrode sheet thickness and power supply voltage on the basis of the original high-voltage electrostatic filter element size.

[0026] Equipped with a two-way self-cleaning scraper with a unique scraper brush design and dust collection chamber design, it achieves efficient dust removal and exhaust, is durable and maintenance-free.

[0027] It has an intelligent control mode, which can sense the dirtiness of the space through the plate current intensity, dynamically adjust the power supply voltage, ensure the dust removal efficiency of the filter element, save energy and reduce ozone emissions; and determine the plate fault through low-voltage pulse waves. It realizes the intelligent control method of electrostatic dust removal with adaptive voltage regulation and the intelligent operation system of fault self-detection method.

[0028] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Moreover, the same reference numerals are used throughout the drawings to represent the same components. In the drawings:

[0030] Figure 1 A front view of an electrostatic dust removal module with integrated scraping and suction according to some embodiments of the present application;

[0031] Figure 2 This is a schematic diagram of the side structure of the scraping and suction integrated electrostatic dust removal module of some embodiments of the present application;

[0032] Figure 3 Schematic diagram of the internal structure of the scraping and suction integrated electrostatic dust removal module of some embodiments of the present application;

[0033] Figure 4 A schematic diagram of the partial structure of the scraping and suction integrated electrostatic dust removal module of some embodiments of the present application;

[0034] Figure 5 for Figure 3 A schematic diagram of the structure enlargement at the center A;

[0035] Figure 6 A schematic diagram of the structure of a dust removal electrode assembly of a scraping and suction integrated electrostatic dust removal module according to some embodiments of the present application;

[0036] Figure 7 An exploded view of a scraper plate of an electrostatic dust removal module with integrated scraping and suction according to some embodiments of the present application;

[0037] Figure 8 This is a schematic diagram of the shell structure of the scraping and suction integrated electrostatic dust removal module of some embodiments of the present application;

[0038] Fig. 9 This is a schematic diagram of the structure of the driving components of the scraping and suction integrated electrostatic dust removal module of some embodiments of the present application;

[0039] Fig.10 A flowchart of self-cleaning control and voltage regulation control of a control method for an electrostatic dust removal module with integrated scraping and suction in some embodiments of the present application;

[0040] Fig.11 A circuit breaker waveform diagram of fault identification of a control method for an electrostatic dust removal module with integrated scraping and suction in some embodiments of the present application;

[0041] Fig.12 A breakdown waveform diagram of fault identification of a control method for an electrostatic dust removal module with integrated scraping and suction in some embodiments of the present application;

[0042] Fig.13 This is a severe dirt waveform diagram for fault identification of the control method of the scraping and suction integrated electrostatic dust removal module in some embodiments of the present application.

[0043] The reference numerals in the specific implementation manner are as follows:

[0044] Shell 1; left cover 11; left electrode sheet support 12; upper support cover 13; right electrode sheet support 14; right cover 15; lower support cover 16; dust removal electrode assembly 2; electrostatic plate 21; high voltage plate 211; grounding plate 212; ionization space 213; ionization wire 22; high voltage connecting piece 23; grounding connecting piece 24; ionization connecting piece 25; tension spring connecting piece 251; hook connecting piece 252; self-cleaning mechanism 3; dust collecting plate 31; dust collecting slot 311; dust collecting chamber 31 2; dust collecting hole 313; dust suction port 314; "V"-shaped protrusion 315; dust scraper plate 32; dust scraper groove 321; drive assembly 33; screw rod 331; screw rod seat 332; slider 333; guide rod 334; synchronous wheel 335; synchronous belt 336; reduction motor 337; tensioner wheel 338; slide rail 3381; sliding block 3382; adjusting screw 3383; sealing strip 34; dust scraper strip 35; slot 351; pressure strip 352; dust scraper blade 353. DETAILED DESCRIPTION

[0045] The following embodiments of the technical solution of the present application are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0046] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0047] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "multiple" is more than two, unless otherwise clearly and specifically defined.

[0048] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0049] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there may be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0050] In the description of the embodiments of the present application, the term "multiple" refers to more than two (including two). Similarly, "multiple groups" refers to more than two groups (including two groups), and "multiple pieces" refers to more than two pieces (including two pieces).

[0051] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0052] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0053] The dust removal performance of high-voltage electrostatic precipitators is affected by three factors: the nature of the dust, the structure of the equipment, and the flow rate of the flue gas. The resistivity of dust is an indicator for evaluating conductivity, which has a direct impact on dust removal efficiency. If the resistivity is too low, it is difficult for dust particles to remain on the dust collecting electrodes, causing them to return to the airflow. If the resistivity is too high, the charge of the dust particles reaching the dust collecting electrodes is not easy to be released, and the voltage gradient formed between the dust layers will cause local breakdown and discharge. The electrode plates of traditional high-voltage electrostatic filters adopt a standardized design, with alternating positive and negative poles, and the spacing between the electrode plates is about 4mm, making it difficult to add a self-cleaning structure design inside the structure. To solve this problem, the following design scheme is proposed.

[0054] Reference Figure 1-9 , an integrated scraping and suction electrostatic dust removal module, comprising a shell 1, a dust removal electrode assembly 2, a self-cleaning mechanism 3 and a controller, the shell 1 is a frame-shaped shell that passes through from front to back, the dust removal electrode assembly 2 is horizontally arranged in the shell 1, and the self-cleaning mechanism 3 is arranged on the dust removal electrode assembly 2; the shell 1 is provided with a left cover 11, a left electrode sheet support 12, an upper support cover 13, a right electrode sheet support 14, a right cover 15 and a lower support cover 16, the left cover 11, the upper support cover 13, the right cover 15 and the lower support cover 16 form a square shell 1, the left electrode sheet support 12 and the right electrode sheet support 14 are respectively arranged on the inner side of the left cover 11 and the right cover 15; the dust removal electrode assembly 2 is arranged between the left electrode sheet support 12 and the right electrode sheet support 14; the self-cleaning mechanism 3 is provided with a dust collecting plate 31, a dust scraping plate 32 and a driving assembly 33, the dust collecting plate 31 is arranged in the shell 1 The dust collecting plate 31 is provided with a dust collecting groove 311 corresponding to the dust removing electrode assembly 2, and a dust collecting cavity 312 is provided at the rear side end of the dust collecting plate 31. Dust collecting holes 313 are provided on both sides of the dust collecting cavity 312 corresponding to the dust collecting groove 311, and a dust suction port 314 is provided on the rear side of the dust collecting plate 31 to communicate with the dust collecting cavity 312. A sealing strip 34 is provided between the dust collecting plate 31 and the dust scraping plate 32 on the rear side of the dust collecting hole 313; the dust scraping plate 32 is provided with a left dust scraping plate 32 and a right dust scraping plate 32 on both sides of the dust collecting plate 31 respectively, and a dust scraping groove 321 is provided on the dust scraping plate 32 corresponding to the dust removing electrode assembly 2, and a dust scraping strip 35 is provided between the dust scraping groove 321 to fit the upper and lower surfaces of the dust removing electrode assembly 2; the driving assembly 33 controls the dust scraping plate 32 to move back and forth synchronously toward the dust collecting plate 31; the dust removing electrode assembly 2 and the driving assembly 33 are electrically connected to the controller.

[0055] A dust collecting plate 31 is added in the middle of the filter element as part of the dust holding chamber, which solves the problem that the metal electrode sheet of the dust removal electrode assembly 2 is too long and prone to horizontal collapse due to the excessive size of the filter element electrostatic plate 21. The scraper strip 35 is prone to jamming when it moves horizontally and encounters the collapse of the dust removal electrode assembly 2. The dust collecting plate 31 supported in the middle also serves as part of the dust exhaust chamber. By setting up double-sided scraper plates 32, the equipment moves toward the middle when it starts, effectively solving the problem of the dust removal electrode assembly 2 being too long.

[0056] When dust removal is started, the dust scraper plate 32 moves toward the middle dust collecting plate 31, and the dust scraper strip 35 scrapes off the dust. The dust scraper plate 32 stays in the middle part. The dust collecting plate 31, the dust scraper plate 32 and each dust scraper strip 35 form an air channel respectively. The front end of the air channel is connected to the outside, and the rear end of the air channel is blocked by the sealing strip 34 and connected to the dust collecting hole 313. After the dust collecting hole is connected to the vacuum cleaner, suction is generated, and the airflow enters the dust collecting hole 313 through the air channel, and the collected dust is collected in the dust collecting chamber 312. After dust removal is completed, the dust scraper plate 32 moves toward both ends and returns to the starting point.

[0057] The upper support cover 13 and the lower support cover 16 are metal cover plates.

[0058] In some embodiments, the drive assembly 33 is provided with a screw 331, a screw seat 332, a slider 333, a guide rod 334, a synchronous wheel 335, a synchronous belt 336 and a reduction motor 337. The screw 331 is horizontally arranged on opposite sides of the outer shell 1, and the screw seat 332 is respectively arranged on the left electrode sheet support 12, the right electrode sheet support 14 and the dust collecting plate 31 and connected to the screw 331. The slider 333 is arranged on the left scraper plate 32 and the right scraper plate 32 and connected to the screw 331. The spiral directions of the screw 331 corresponding to the left scraper plate 32 and the right scraper stroke are opposite. The guide rod 334 is arranged on both sides of the screw 331 and connected to the outer shell 1. The reduction motor 337 is fixed to one side end of the outer shell 1. The synchronous wheel 335 is respectively connected to the screw 331 and the reduction motor 337, and is linked and connected through the synchronous belt 336.

[0059] The driving assembly 33 can realize synchronous driving of the dust scraping plate 32, moving it toward the central dust collecting plate 31 or away from the dust collecting plate 31, thereby ensuring the stable operation of the dust scraping plate 32 and the dust scraping effect.

[0060] In some embodiments, the dust removal electrode assembly 2 is provided with an electrostatic plate 21, an ionization wire 22, a high-voltage connecting piece 23, a grounding connecting piece 24 and an ionization connecting piece 25, wherein the electrostatic plate 21 is evenly arranged horizontally between the left electrode sheet support 12 and the right electrode sheet support 14, and the high-voltage connecting piece 23, the grounding connecting piece 24 and the ionization connecting piece 25 are respectively arranged vertically on the outer surfaces of the left electrode sheet support 12 and the right electrode sheet support 14, and the electrostatic plate 21 is sequentially spaced from the high-voltage connecting piece 23 and the grounding connecting piece 24. A high voltage plate 211 and a grounding plate 212 are connected. Several of the high voltage plates 211 or the grounding plates 212 extend to the front end to form a uniformly distributed ionization space 213. The ionization space forms a voltage difference with the dust removal plate at the rear. The number of electrostatic plates 21 at the rear of the ionization space 213 is an odd number. The ionization wire 22 is arranged in each ionization space 213 and connected to the ionization connecting pieces 25 at both ends. One end of the ionization connecting piece 25 is a tension spring connecting piece 251 and the other end is a hook connecting piece 252 connected to the ionization wire 22.

[0061] The electrostatic plate 21 penetrates the dust collecting groove 311 and the dust scraping groove 321 , and the dust scraping strips 35 are respectively attached to the upper and lower surfaces of the electrostatic plate 21 .

[0062] The electrostatic plate 21 is connected to the high-voltage connecting plate 23 and the grounding connecting plate 24 in sequence to form a high-voltage plate 211 and a grounding plate 212, which means that from top to bottom, the high-voltage plate 211, the grounding plate 212, the high-voltage plate 211 or the grounding plate 212, the high-voltage plate 211, and the grounding plate 212 are repeatedly arranged, the high-voltage plate 211 is only connected to the high-voltage connecting plate 23, and the grounding plate 212 is only connected to the grounding connecting plate 24; the electrostatic plate 21 and the ionization wire 22 are connected to a high-voltage power supply; the high-voltage connecting plate 23, the grounding connecting plate 24 and the ionization connecting plate 25 are provided with protective covers to play an insulating and protective role.

[0063] A number of the high-voltage plates 211 or grounding plates 212 extend to the front end to form a uniformly distributed ionization space 213, which means that two adjacent high-voltage plates 211 or two adjacent grounding plates 212 extend forward relative to other electrostatic plates 21, or one or more high-voltage plates 211 or grounding plates 212 extend forward relative to other electrostatic plates 21, so that an ionization space 213 is formed between the two extended plates, and the number of electrostatic plates 21 between the two extended plates behind the ionization space 213 is an odd number, in order to ensure that the extended electrostatic plates 21 are all high-voltage plates 211 or grounding plates 212. The grounding plate 212 can be a negative pole, and the preferred case is grounding treatment.

[0064] Preferably, the extended longer electrostatic plate 21 is the negative electrode (grounded), and there are three short electrostatic plates 21 between the long electrostatic plates 21, and the electrodes are positive, negative (grounded), and positive respectively.

[0065] In some embodiments, the plate spacing of the electrostatic plate 21 is 6.5-8mm, the thickness of the electrostatic plate 21 is 0.6-1mm, the length is not more than 350mm, the width is 110-150mm, and the extension length of the high-voltage plate 211 or the grounding plate 212 is 20-40mm; the voltage of the electrostatic plate 21 is 7KV-10KV.

[0066] A self-cleaning scraper strip 35 needs to be accommodated between the high-voltage plate 211 and the grounding plate 212. Therefore, the distance between the electrostatic plates 21 needs to be increased in the electric field design, taking into account both efficiency and safety. It has been verified that the distance between two adjacent electrostatic plates 21 is preferably between 6.5-8 mm, and 7.2 mm is the optimal value. The thickness of the dust collecting plate 31 is 0.8 mm.

[0067] When the distance between the electrostatic plates 21 is less than 6.5mm, the voltage is greater than 5KV, which is prone to sparking; when the distance between the electrostatic plates 21 is greater than 8mm, the voltage is less than 4KV, and the efficiency is low; and when the high voltage of the ionizing wire 22 is greater than 10KV or the voltage of the electrostatic plate 21 is greater than 5KV, the ozone concentration will be relatively high.

[0068] Voltage adjustment range: The voltage of the ionizing wire 22 is adjusted between 7KV-10KV, and the voltage of the electrostatic plate 21 is adjusted between 4KV-5KV. When dust accumulates on the electrostatic plate 21, resistance will be formed, thereby changing its volt-ampere characteristic curve. The intelligent control system determines the degree of air pollution by obtaining the dust collection current and ionization current in real time, and ensures the dust removal efficiency of the filter element by adjusting the voltage.

[0069] In some embodiments, the plate spacing of the electrostatic plate 21 is 6.5-8 mm, the thickness of the electrostatic plate 21 is 0.6-1 mm, not more than 350 mm, the width is 110-150 mm, and the extension length of the high-voltage plate 211 or the grounding plate 212 is 20-40 mm.

[0070] Preferably, the electrostatic plate 21 has a thickness of 0.8 mm and a length of 344 mm, a width of the unextended short electrostatic plate 21 of 115 mm, and a width of the extended electrostatic plate 21 of 145 mm.

[0071] In some embodiments, the scraper strip 35 is provided with a slot 351, a pressure strip 352 and a scraper blade 353. The slot 351 is respectively arranged between the two scraper grooves 321. The outer end of the slot 351 is provided with a trumpet mouth. The pressure strip 352 matches the shape of the slot 351. The middle part of the scraper blade 353 is fixed in the slot 351 by the pressure strip 352, and the free end of the scraper blade 353 is in contact with the electrostatic plates 21 on the upper and lower sides.

[0072] In some embodiments, the scraper blade 353 is a PET film or other insulating, wear-resistant and corrosion-resistant material, and the horizontal angle of the free end of the scraper blade 353 is 15°-45°.

[0073] The scraper blade 353 is made of PET film, has a durability of more than 50,000 times, and is not easy to age under high voltage electric field. This angle can apply appropriate dust scraping force to the electrostatic plate 21 to achieve a good dust scraping and dust removal effect.

[0074] In some embodiments, a "V"-shaped protrusion 315 is provided between the dust collecting grooves 311 corresponding to the dust scraping blades 353; the two ends of the dust collecting grooves 311 are symmetrical trumpet openings, and the opening height of the outer end of the trumpet opening is 7.6-8mm, and the opening height of the inner end is 4-5mm; the thickness of the sealing strip 34 is 3.8-4.2mm.

[0075] The dust holding chamber is formed only when the middle dust collecting plate 31 is tightly closed after the double dust scraping plates 32 are started. After the dust scraping plates 32 on both sides are started, they move towards the middle dust collecting plate 31, scraping the dust to the middle part, and stop at about 5mm away from the middle support. The preferred thickness of the sealing strip 34 is about 4mm. The "V"-shaped protrusion 315 structure is designed for each layer of the middle dust collecting plate 31, and the corresponding scraping blade 353 on each layer is a V design with an angle of 52.4 degrees. The scraping blade 353 on each side forms an angle of 26.2 degrees with the electrostatic plate 21, forming a tiny and elongated dust holding space. The outer end opening of the horn opening is the port close to the side of the dust scraping plates 32 on both sides.

[0076] In some embodiments, a tensioning wheel 338 is provided on one side of the synchronous belt 336, and the tensioning wheel 338 is provided between the two synchronous wheels 335. The tensioning wheel 338 is provided with a slide rail 3381, a sliding block 3382 and an adjusting screw 3383. The slide rail 3381 is fixed on the outer shell 1, and the sliding block 3382 is provided on the slide rail 3381. The tensioning wheel 338 is provided on the sliding block 3382, and the adjusting screw 3383 is provided at one end of the slide rail 3381 and connected to the sliding block 3382.

[0077] Second, refer to Figure 10-13 The present application provides a control method for an integrated scraping and suction electrostatic dust removal module, comprising the following steps:

[0078] 1) Obtain the current signal of the electrostatic plate in real time;

[0079] 2) determining whether the current signal meets the self-cleaning start condition, and starting the adaptive voltage regulation if it does not meet the condition;

[0080] 3) If satisfied, the obtained current signal is compared with the preset interval value to determine the degree of dirtiness of the electrostatic plate;

[0081] 4) Start the dust removal module, and control the number of times the self-cleaning scraper head works and the gear position of the dust exhaust fan according to the determined dirt level;

[0082] 5) After the self-cleaning and dust removal is completed, the intelligent voltage is automatically adjusted to the standard preset output value.

[0083] The obtained current signal is compared with the preset value. If it is greater than the preset value, the dirt level is determined. If it is not satisfied, the self-cleaning step ends and waits for the next cycle detection. The current signal detection module controls the controller, and the controller completes the cleaning work by controlling the dust removal module.

[0084] The method can distinguish the degree of dirtiness of the electrode plates, improve the cleaning efficiency and save energy.

[0085] In some embodiments of the present application, the step 2) starts the adaptive voltage regulation by starting the voltage regulator, obtaining the air dust pollution data according to the sensor at the front end of the module, judging the air quality level, and judging whether to start the intelligent voltage regulation in combination with the wind speed. If so, it starts, otherwise it ends and waits for the next start.

[0086] In some embodiments of the present application, the voltage regulation includes adjusting the voltage of the ionization wire 22 between 7KV-10KV and the voltage of the electrostatic plate 21 between 4KV-5KV. After the self-cleaning and dust removal is completed, the adaptive voltage regulation function adjusts the voltage of the ionization wire 22 to the standard preset output value of 8KV and the voltage of the electrostatic plate 21 to the standard preset output value of 4KV.

[0087] According to experiments, when there are a lot of insulating particles in the dust accumulated on the electrostatic plate 21, the current I d decreases; when there are more conductive particles, the current I d In some embodiments of the present application, the self-cleaning module is started according to the voltage-regulated electrostatic plate 21I d The value fluctuation range exceeds the preset range of ±20%. At the same time, the dirtiness of the electrostatic plate 21 is divided into two levels: light and heavy.

[0088] In some embodiments, if the self-cleaning start condition in step 2) is not met, it means that the electrostatic plate has not reached the pollution level. At this time, the voltage regulation function is started, that is, when the electrostatic plate accumulates dust, the voltage is adjusted according to the degree of dirtiness; by periodically starting the voltage regulator, the air dust pollution data and wind speed are obtained according to the sensor at the front end of the module, the air quality level is judged, and it is determined whether to start voltage regulation. If yes, it is started, otherwise it is terminated and waits for the next start.

[0089] The air dust pollution data and wind speed are obtained through the set air quality and wind speed sensors respectively, and the voltage is adjusted through the voltage regulator connected to the controller.

[0090] In some embodiments, the voltage regulation includes regulating the voltage of the ionization wire 22 between 7KV and 10KV, and regulating the voltage of the electrostatic plate 21 between 4KV and 5KV.

[0091] The starting voltage regulator adjusts the voltage within the range, which saves energy, controls ozone emissions, and saves costs.

[0092] In some embodiments, the dust removal process also includes fault identification, which is carried out by sending a low-voltage pulse to the electrostatic plate 21, obtaining the pulse reflection waveform and reflection time, and comparing them with the standard value. When a certain difference is reached, the type of fault is determined. The fault types include open circuit, severe dirt, and breakdown.

[0093] The circuit-breaking waveform is a full reflection waveform, the breakdown waveform is an alternating waveform reflection, and the severe contamination is a small-amplitude reflection.

[0094] In some embodiments, the dust removal process also includes a fault identification step, specifically adding a low-voltage pulse module to apply a low-voltage pulse to the electrostatic plate 21; recording each pulse waveform; comparing each pulse waveform; and determining a fault if the difference value is greater than a preset range.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them; although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application, and they should all be included in the scope of the claims and specification of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way. The present application is not limited to the specific embodiments disclosed herein, but includes all technical solutions that fall within the scope of the claims.

Claims

1. An integrated scraping and suction electrostatic dust removal module, characterized in that: It includes a shell, a dust removal electrode assembly, a self-cleaning mechanism and a controller, the shell is a frame-shaped shell that passes through from front to back, the dust removal electrode assembly is horizontally arranged in the shell, and the self-cleaning mechanism is arranged on the dust removal electrode assembly; the shell is provided with a left cover, a left electrode sheet support, an upper support cover, a right electrode sheet support, a right cover and a lower support cover, the left cover, the upper support cover, the right cover and the lower support cover form a square shell, the left electrode sheet support and the right electrode sheet support are respectively arranged on the inner side of the left cover and the right cover; the dust removal electrode assembly is arranged between the left electrode sheet support and the right electrode sheet support; the self-cleaning mechanism is provided with a dust collecting plate, a dust scraping plate and a driving assembly, the dust collecting plate is arranged in the shell A dust collecting groove is provided through the dust collecting plate corresponding to the dust removal electrode assembly, a dust collecting cavity is provided at the rear end of the dust collecting plate, dust collecting holes are provided on both sides of the dust collecting cavity corresponding to the dust collecting grooves, a dust suction port is provided on the rear side of the dust collecting plate to communicate with the dust collecting cavity, a sealing strip is provided between the dust collecting plate and the scraper plate on the rear side of the dust collecting hole; a left scraper plate and a right scraper plate are respectively provided on both sides of the dust collecting plate, a dust scraping groove is provided through the dust scraping plate corresponding to the dust removal electrode assembly, a scraping strip is provided between the dust scraping grooves and is fitted with the upper and lower surfaces of the dust removal electrode assembly; the driving assembly controls the scraping plate to move back and forth synchronously toward the dust collecting plate; the dust removal electrode assembly and the driving assembly are electrically connected to the controller.

2. The scraping and suction integrated electrostatic dust removal module according to claim 1, characterized in that: The driving assembly is provided with a screw, a screw seat, a slider, a guide rod, a synchronous wheel, a synchronous belt and a reduction motor. The screw is horizontally arranged on opposite sides of the shell, and the screw seats are respectively arranged on the left electrode sheet support, the right electrode sheet support and the dust collecting plate and are connected to the screw. The slider is arranged on the left scraper plate and the right scraper plate and is connected to the screw. The spiral directions of the screw corresponding to the left scraper plate and the right scraper stroke are opposite, the guide rods are arranged on both sides of the screw and are connected to the shell, the reduction motor is fixed to one side end of the shell, and the synchronous wheels are respectively connected to the screw and the reduction motor, and are linked to each other through a synchronous belt.

3. The scraping and suction integrated electrostatic dust removal module according to claim 1, characterized in that: The dust removal electrode assembly is provided with an electrostatic plate, an ionization wire, a high-voltage connecting plate, a grounding connecting plate and an ionization connecting plate. The electrostatic plates are horizontally and evenly arranged between the left electrode plate support and the right electrode plate support. The high-voltage connecting plate, the grounding connecting plate and the ionization connecting plate are respectively vertically arranged on the outer surfaces of the left electrode plate support and the right electrode plate support. The electrostatic plates are sequentially connected with the high-voltage connecting plate and the grounding connecting plate at intervals to form a high-voltage plate and a grounding plate. Several of the high-voltage plates or grounding plates extend to the front end to form an evenly distributed ionization space. The number of electrostatic plates behind the ionization space is an odd number. The ionization wire is arranged in each ionization space and connected to the ionization connecting plates at both ends. One end of the ionization connecting plate is a tension spring connecting plate and the other end is a hook connecting plate connected to the ionization wire.

4. The scraping and suction integrated electrostatic dust removal module according to claim 1, characterized in that: The plate spacing of the electrostatic plate is 6.5-8mm, the thickness of the electrostatic plate is 0.6-1mm, the length is not more than 350mm, the width is 110-150mm, the extension length of the high-voltage plate or the grounding plate is 20-40mm; the voltage of the electrostatic plate is 7KV-10KV.

5. The scraping and suction integrated electrostatic dust removal module according to claim 1, characterized in that: The scraper strip is provided with a slot, a pressure strip and a scraper blade. The slots are respectively arranged between the two scraper grooves. A trumpet mouth is provided at the outer end of the slot. The pressure strip matches the shape of the slot. The middle part of the scraper blade is fixed in the slot by the pressure strip, and the free end of the scraper blade is fitted with the electrostatic plates on the upper and lower sides. The scraper blade is a PET film or other insulating, wear-resistant and corrosion-resistant material. The horizontal angle of the free end of the scraper blade is 15°-45°.

6. The scraping and suction integrated electrostatic dust removal module according to claim 1, characterized in that: A "V"-shaped protrusion is provided between the dust collecting grooves corresponding to the dust scraping plates; the two ends of the dust collecting grooves are symmetrical trumpet openings, the outer end opening height of the trumpet opening is 7.6-8mm, and the inner end opening height is 4-5mm; a sealing strip is provided between the dust collecting plate and one side end of the dust scraping plate; the thickness of the sealing strip is 3.8-4.2mm.

7. The scraping and suction integrated electrostatic dust removal module according to claim 2, characterized in that: A tensioning wheel is provided on one side of the synchronous belt, and the tensioning wheel is arranged between the two synchronous wheels. The tensioning wheel is provided with a slide rail, a sliding block and an adjusting screw. The slide rail is fixed on the outer shell, the sliding block is arranged on the slide rail, the tensioning wheel is arranged on the sliding block, and the adjusting screw is arranged at one end of the slide rail and connected with the sliding block.

8. A control method for an integrated scraping and suction electrostatic dust removal module, characterized in that: The method comprises the following steps to realize the control of any one of the modules of claims 1 to 7: 1) Obtain the current signal of the electrostatic plate in real time; 2) determining whether the current signal meets the self-cleaning start condition, and starting the adaptive voltage regulation if it does not meet the condition; 3) If satisfied, the obtained current signal is compared with the preset interval value to determine the degree of dirtiness of the electrostatic plate; 4) Start the dust removal module, and control the number of times the self-cleaning scraper head works and the gear position of the dust exhaust fan according to the determined dirt level.

9. The control method of the scraping and suction integrated electrostatic dust removal module according to claim 8, characterized in that: If the self-cleaning start condition in step 2) is not met, it means that the electrostatic plate has not reached the pollution level. At this time, the voltage regulation function is started. By periodically starting the voltage regulator, the air dust pollution data and wind speed are obtained, the air quality level is judged, and it is determined whether to start voltage regulation. If yes, it is started, otherwise it ends and waits for the next start.

10. The control method of the scraping and suction integrated electrostatic dust removal module according to claim 8, characterized in that: The dust removal process also includes fault identification, which is done by sending a low-voltage pulse to the electrostatic plate, obtaining the pulse reflection waveform and reflection time, and comparing them with the standard value. When a certain difference is reached, the type of fault is determined. Fault types include open circuit, severe dirt, and breakdown.

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