Intelligently controlled high-efficiency air negative ion return air purification device

Abstract

This intelligently controlled, high-efficiency, negative ion return air purification device features an outer frame structure including an air inlet grille, an electrostatic dust removal module, and a micro-electrostatic purification module, sequentially positioned within the grille. A central control module includes an indicator light display and a microprocessor. The microprocessor's signal input is connected to the equipment's cleaning, maintenance, and fault feedback circuits, while its signal output is connected to a high-voltage test circuit. The central control module adjusts system performance and provides signal feedback to the indicator light display. A high-voltage power supply module is connected to the negative ionization high-voltage contacts on the electrostatic dust removal module and the positive high-voltage contacts on the micro-electrostatic plate on the micro-electrostatic purification module, providing power for the entire device. This device features easy installation, low ventilation resistance, efficient negative air ion generation, and multi-layer filtration of indoor air. Its comprehensive purification capabilities make it suitable for integration with air conditioning return air systems to achieve high-quality, healthy air.

Description

Technical Field

[0001] The present invention relates to the field of air purification devices, and in particular to a high-efficiency air negative ion return air purification device that can be intelligently controlled. Background Art

[0002] Currently, indoor return air systems based on traditional central air conditioning systems in indoor and large public spaces have long lacked effective air purification and disinfection devices. Return air purifiers typically rely solely on a layer of low-efficiency nylon mesh or multiple layers of metal mesh. These filters are unable to effectively intercept common airborne pollutants such as PM2.5 particulate matter, volatile organic compounds, and bacteria, and are prone to dust accumulation, making it difficult to completely remove them, resulting in secondary pollution to the indoor environment. However, a small number of return air purifiers with electrostatic dust removal (ESP) purification modes have also generated high concentrations of ozone and sparks due to improper electrode material and structural design, creating secondary pollution and safety hazards. Therefore, there are also related studies on the improvement of electrostatic precipitator equipment and the optimization of discharge electrode structure (application numbers are: CN201620403045, CN201520404721, CN201320058794), but most of the related studies are only aimed at the improvement of the discharge electrode structure, forming flexible cathode wires or non-sharp serrations, etc., and do not simultaneously achieve improvements in electrode materials (mostly tungsten steel needles, alloys or carbon wires in the market) and preparation processes. Therefore, it has not been able to effectively solve the problems of high ozone concentration, sparks and noise during the discharge process, and the purification treatment efficiency is relatively unsatisfactory. Summary of the Invention

[0003] The purpose of the present invention is to solve the above-mentioned problems in the prior art, such as the limitations of the indoor return air system of central air conditioning, the diversity of polluted air components and the particularity of electrostatic dust removal technology, and to provide a high-efficiency air negative ion return air purification device that can be intelligently controlled, can be remotely intelligently controlled, has the characteristics of low noise and low ozone concentration, and achieves multiple purifications to improve the air quality of the indoor environment.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] An intelligently controlled, high-efficiency air negative ion return air purification device comprises an outer frame structure and a central control module, a high-voltage power supply module, a micro-electrostatic purification module, and an electrostatic dust removal module installed within the outer frame structure;

[0006] The outer frame structure includes an air inlet grid, and the electrostatic dust removal module and the micro-electrostatic purification module are sequentially arranged on the inner side of the air inlet grid;

[0007] The central control module includes an indicator light display and a microprocessor. The signal input end of the microprocessor is connected to the equipment cleaning maintenance and fault feedback circuit, and the signal output end of the microprocessor is connected to the high-voltage test circuit. The central control module is used to adjust the system performance and feed back the signal to the indicator light display;

[0008] The high-voltage power supply module is respectively connected to the ionization negative high-voltage contact on the electrostatic dust removal module and the micro-electrostatic plate positive high-voltage contact on the micro-electrostatic purification module. The high-voltage power supply module is used to provide working power for the entire device.

[0009] The micro-electrostatic purification module includes a plurality of quadrangular honeycomb dust collecting plates and a plurality of high-voltage electrode plates. The quadrangular honeycomb dust collecting plates are formed by stacking a plurality of quadrangular prisms with open ends. The high-voltage electrode plates are embedded between two adjacent quadrangular honeycomb dust collecting plates.

[0010] The discharge electrode of the electrostatic precipitator module adopts a sawtooth tip structure, the distance between the tops of the two fixedly connected tips is 22 to 27 mm, and the height of the sawtooth tip structure is 4.5 to 5 mm; the air inlet grid serves as the negative electrode sheet, forming an ionization discharge area with the sawtooth tip structure, the distance between the connected grids is 7.2 to 8 mm, and the distance between the sawtooth tip structure and the grid is 12.8 to 13.5 mm.

[0011] The sawtooth tip structure is made of SUS430 series stainless steel, the tip angle range is 14° to 21°, and the molding method is stamping one-piece molding, so that the top is twisted to produce the sawtooth tip structure.

[0012] The microprocessor is provided with an RS-485-MODBUS interface for accessing third-party application equipment or systems.

[0013] The central control module has built-in infrared remote control and WIFI, which can turn on and off the purification device through infrared remote control and realize remote control of the smart mobile terminal through WIFI.

[0014] The indicator light display screen is arranged on the upper part of the high-voltage power supply module and on the outer frame structure.

[0015] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0016] 1. The present invention includes a dual purification system of a micro-electrostatic purification module and an electrostatic dust removal module. Compared with the air purification function components configured inside the indoor unit of the previous air conditioner, due to the limitations of ventilation resistance and installation space, it can only provide very limited purification and adjustment functions, and cannot meet the comprehensive pollution treatment requirements such as eliminating PM2.5, sterilization and disinfection, and even more cannot meet the requirements of healthy air quality for the entire indoor environment. However, the present invention not only has low ventilation resistance, but can also effectively eliminate PM2.5, sterilize, and remove volatile harmful gases, and comprehensively eliminate various indoor air pollutants to meet healthy air quality standards. The pollutants first pass through the air inlet grille and the electrostatic dust removal module to purify large particles and remove most pollutants; then pass through the micro-electrostatic purification module, similar to a honeycomb structure, to form countless micro-discharge areas. At the same time, under the action of negative ions, the air pollutants are further purified to achieve a higher air purification effect and realize a virtuous cycle of indoor air.

[0017] 2. The present invention also provides a central control module, and information can be fed back to the indicator light display screen in a timely manner. At the same time, it can also fully realize the connection of multiple devices and remote monitoring of device performance, and timely manage, control and maintain them.

[0018] 3. The electrostatic dust removal module adopts a sawtooth tip discharge electrode with a special structure, material and molding method, and forms a discharge ionization area with the front air inlet grid, forming a high-efficiency purification unit with low ozone concentration, low noise and high negative ion production.

[0019] 4. The outer frame structure can be adjusted according to the actual site requirements. It is simple and quick to install and disassemble, easy to replace and clean, saving space and cost, and has a wide range of applications. In addition, the structural bracket supporting the electrostatic precipitator module is cast in one piece, eliminating the need for separate assembly, facilitating installation and maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the decomposition structure of the present invention;

[0021] Figure 2 This is a front view schematic diagram of the overall appearance of the present invention;

[0022] Figure 3 This is a rear view schematic diagram of the overall appearance of the present invention;

[0023] Figure 4 A schematic diagram of the sawtooth tip structure of the electrostatic precipitator module;

[0024] Figure 5 It is a structural diagram of the micro-electrostatic purification module;

[0025] Figure 6 The serrated tip structure made of SUS430 stainless steel shows the amount of ions and ozone released at different tip angles and voltages.

[0026] Figure 7 The serrated tip structure made of SUS304 stainless steel shows the amount of ions and ozone released at different tip angles and voltages.

[0027] Figure 8 The serrated tip structure made of SUS301 stainless steel shows the amount of ions and ozone released at different tip angles and voltages.

[0028] Figure numerals: air inlet grid 1, indicator light display screen 2, micro-electrostatic purification module 3, electrostatic dust removal module 4, outer frame structure 5, central control module 6, high-voltage power supply module 7, micro-electrostatic plate positive high-voltage contact 31, micro-electrostatic plate grounding contact 32, high-voltage electrode plate 33, quadrangular prism honeycomb dust collecting plate 34, ionization grounding contact 41, ionization negative high-voltage contact 42, serrated tip structure 43. DETAILED DESCRIPTION

[0029] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0030] like Figures 1 to 3 As shown, this embodiment includes an outer frame structure 5 and a central control module 6, a high-voltage power supply module 7, a micro-electrostatic purification module 3, and an electrostatic dust removal module 4 installed in the outer frame structure 5;

[0031] The outer frame structure 5 includes an air inlet grid 1 and an outer frame base, and the electrostatic dust removal module 4 and the micro-electrostatic purification module 3 are sequentially arranged on the inner side of the air inlet grid 1;

[0032] The central control module 6 includes an indicator light display screen 2 and a microprocessor. The signal input end of the microprocessor is connected to the equipment cleaning maintenance and fault feedback circuit, and the signal output end of the microprocessor is connected to the high-voltage test circuit. The central control module 6 is used to adjust the system performance and feedback the signal to the indicator light display screen 2; the indicator light display screen 2 is arranged on the upper part of the high-voltage power supply module 7 and on the outer frame structure 5. The indicator light display screen 2 prompts in the operating state can be divided into: automatic / manual mode, operating state and filter replacement mode;

[0033] The microprocessor is equipped with an RS-485-MODBUS interface for connecting to third-party application devices or systems. The central control module 6 also has built-in infrared remote control and WiFi, enabling automatic and manual mode switching. The purification device can be turned on and off by infrared remote control and remotely controlled by smart mobile terminals via WiFi. Ultimately, multiple devices in the same application environment can be connected, remotely monitored, and customized purification functions can be achieved.

[0034] The high-voltage power supply module 7 is connected to the negative ionization high-voltage contact 42 on the electrostatic precipitator module 4 and the positive micro-electrostatic plate high-voltage contact 31 on the micro-electrostatic purification module 3, respectively, to provide operating power for the entire device. Furthermore, the ionization grounding contact 41 on the electrostatic precipitator module 4 and the micro-electrostatic plate grounding contact 32 on the micro-electrostatic purification module 3 are grounded, improving the safety factor of the device.

[0035] like Figure 4 As shown, the discharge electrode of the electrostatic precipitator module 4 adopts a sawtooth tip structure 43, the distance c between the tops of the two fixedly connected tips is 22 to 27 mm, and the height b of the sawtooth tip structure 43 is 4.5 to 5 mm; the air inlet grid 1 serves as a negative electrode sheet, forming an ionization discharge area with the sawtooth tip structure 43, the connected grid spacing is 7.2 to 8 mm, and the spacing between the sawtooth tip structure 43 and the grid is 12.8 to 13.5 mm.

[0036] The sawtooth tip structure 43 is made of SUS430 series stainless steel, the tip angle range a is 14° to 21°, and the forming method is stamping integral forming, so that the top is twisted to produce the sawtooth tip structure 43.

[0037] like Figure 5 As shown, the micro-electrostatic purification module 3 includes a plurality of quadrangular honeycomb dust collecting plates 34 and a plurality of high-voltage electrode plates 33. The quadrangular honeycomb dust collecting plates 34 are stacked by a plurality of quadrangular prisms with open ends. The high-voltage electrode plates 33 are embedded between two adjacent quadrangular honeycomb dust collecting plates 34, which can effectively prevent the plates from short-circuiting and causing spark discharge effects.

[0038] The principles of the present invention are as follows:

[0039] The present invention has multiple purification functions. The structure of the air inlet grid 1 can effectively prevent large particles of dust from entering the return air system, thereby achieving the purpose of preliminary filtration; then it passes through the electrostatic dust removal module 4 with a special serrated tip discharge electrode, and the serrated tip structure 43 is at a certain spatial distance from the air inlet grid 1, and a certain voltage is applied to its tip to discharge, generating a large amount of air negative ions. Very little ozone is generated in the process, and the noise is also very low; then it passes through the micro-electrostatic purification module 3, and the honeycomb-like electrostatic mode can further achieve efficient purification of pollutants such as PM2.5, and at the same time it can also sterilize and degrade volatile harmful gases, with the performance characteristics of low ventilation resistance and high purification efficiency; a central control module 6 is also provided inside the device, and information can be fed back to the indicator display screen 2 in a timely manner. At the same time, it can also realize the full-dimensional connection of multiple devices and remote monitoring of equipment performance, and timely management, control and maintenance of them.

[0040] In order to further study the influence of the material, tip angle and applied voltage of the discharge electrode sawtooth tip structure in the electrostatic precipitator module on the amount of ozone and negative ions produced, the present invention uses SUS430, SUS304 and SUS301 stainless steel materials to conduct tests at different angles and voltages, such as Figures 6-8 shown; among them, Figure 6 In (6a) to (6h), the amount of ozone and the amount of ions were tested under the conditions of voltage 3000 to 10000 V respectively; Figure 7 In (7a) to (7h), the amount of ozone and the amount of ions were tested under the conditions of voltage 3000 to 10000 V respectively; Figure 8 In (8a) to (8h), the amount of ozone and the amount of ions were tested under voltage conditions of 3000 to 10000 V, respectively.

[0041] from Figures 6-8 As can be seen, compared to the other two discharge electrodes, the SUS430 discharge electrode produces the greatest amount of negative ions. While ozone concentration gradually increases with increasing voltage, it remains within a safe range. Furthermore, a tip angle between 14° and 21° achieves higher negative ion production and lower ozone concentration. This is likely due to the addition of titanium to the ferritic SUS430 stainless steel. Under high-voltage ionization, this increases negative ion production during the ozone conversion process, interrupting and weakening the process and, to a certain extent, suppressing ozone production.

[0042] The overall structure of the device in this embodiment is a rectangular parallelepiped, and the outer frame structure has various styles and sizes that can be adjusted according to actual site requirements to adapt to the air conditioning product structures of different manufacturers or the air outlet structures of air conditioning indoor units of different models and specifications of the same manufacturer, so as to achieve the purpose of docking structure and appearance coordination; installation and disassembly are simple and quick, and easy to replace and clean, saving space and use costs.

[0043] This invention can meet the requirements for return air vent docking and external dimensional adjustment for most air conditioning units on the market, and can also be applied to bus air conditioning and ventilation systems. The invention has low ventilation resistance, minimal impact on air conditioning ventilation volume, and minimal impact on the operation of the air conditioner itself. In dual purification mode, the invention can efficiently purify PM2.5 particles while also effectively sterilizing and degrading volatile harmful gases, achieving a virtuous cycle of indoor air quality. It also features low noise, low ozone concentration, and high negative ion production.

Claims

1. Intelligently controlled high-efficiency air negative ion return air purification device, characterized by: It includes an outer frame structure and a central control module, a high-voltage power supply module, a micro-electrostatic purification module, and an electrostatic dust removal module installed in the outer frame structure; The outer frame structure includes an air inlet grid, and the electrostatic dust removal module and the micro-electrostatic purification module are sequentially arranged on the inner side of the air inlet grid; The central control module includes an indicator light display and a microprocessor. The signal input end of the microprocessor is connected to the equipment cleaning maintenance and fault feedback circuit, and the signal output end of the microprocessor is connected to the high-voltage test circuit. The central control module is used to adjust the system performance and feed back the signal to the indicator light display; the indicator light display is arranged on the upper part of the high-voltage power supply module and on the outer frame structure; The high-voltage power supply module is respectively connected to the ionization negative high-voltage contact on the electrostatic dust removal module and the micro-electrostatic plate positive high-voltage contact on the micro-electrostatic purification module. The high-voltage power supply module is used to provide working power for the entire device; The discharge electrode of the electrostatic precipitator module adopts a sawtooth tip structure, the distance between the tops of the two fixedly connected tips is 22-27 mm, and the height of the sawtooth tip structure is 4.5-5 mm; the air inlet grid serves as the negative electrode, forming an ionization discharge area with the sawtooth tip structure, the connected grid spacing is 7.2-8 mm, and the spacing between the sawtooth tip structure and the grid is 12.8-13.5 mm; The sawtooth tip structure is made of SUS430 series stainless steel, the tip angle range is 14°~21°, and the forming method is stamping one-piece forming, so that the top is twisted to produce the sawtooth tip structure.

2. The intelligently controllable high-efficiency air negative ion return air purification device according to claim 1, characterized in that: The micro-electrostatic purification module includes a plurality of quadrangular honeycomb dust collecting plates and a plurality of high-voltage electrode plates. The quadrangular honeycomb dust collecting plates are formed by stacking a plurality of quadrangular prisms with open ends. The high-voltage electrode plates are embedded between two adjacent quadrangular honeycomb dust collecting plates.

3. The intelligently controllable high-efficiency air negative ion return air purification device according to claim 1, characterized in that: The microprocessor is provided with an RS-485-MODBUS interface for accessing third-party application equipment or systems.

4. The intelligently controllable high-efficiency air negative ion return air purification device according to claim 1, characterized in that: The central control module has built-in infrared remote control and WIFI, which can turn on and off the purification device through infrared remote control and realize remote control of the smart mobile terminal through WIFI.

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