CN116659083B - An air filter device - Google Patents
An air filter device Download PDFInfo
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- CN116659083B CN116659083B CN202310785575.8A CN202310785575A CN116659083B CN 116659083 B CN116659083 B CN 116659083B CN 202310785575 A CN202310785575 A CN 202310785575A CN 116659083 B CN116659083 B CN 116659083B
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- air
- purification
- filtration
- purification box
- purifying
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- 238000000746 purification Methods 0.000 claims abstract description 67
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 48
- 238000001914 filtration Methods 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 21
- 239000007921 spray Substances 0.000 claims abstract description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 13
- 239000011148 porous material Substances 0.000 claims description 8
- 239000003595 mist Substances 0.000 claims description 5
- 239000000126 substance Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 238000010926 purge Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 239000003344 environmental pollutant Substances 0.000 abstract description 4
- 231100000719 pollutant Toxicity 0.000 abstract description 4
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 6
- 239000000428 dust Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000010865 sewage Substances 0.000 description 4
- 239000000443 aerosol Substances 0.000 description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 3
- 235000017557 sodium bicarbonate Nutrition 0.000 description 3
- 239000010902 straw Substances 0.000 description 3
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004887 air purification Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000003905 indoor air pollution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
- F24F6/12—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air
- F24F6/14—Air-humidification, e.g. cooling by humidification by forming water dispersions in the air using nozzles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Dispersion Chemistry (AREA)
- Separation Of Particles Using Liquids (AREA)
- Electrostatic Separation (AREA)
Abstract
本发明公开一种空气过滤装置，属于气治理设备技术领域，包括车体，车体上固定有若干净化装置，净化箱，净化装置内部两侧设置有静电板，净化装置顶部设置进风口，进风口底部设置进气扇；净化装置底部内侧设置排气扇，排气扇出口连通出气管，出气管伸入到净化箱中，净化箱中装有净化液。本装置结构简单，二级过滤结构的过滤效果更好，净化箱中加入水可以满足常规使用，在过滤过程中实现加湿功能；净化箱中加入NaOH溶液可清除多种污染物，适用于室内污染严重的情况，同时喷雾设计加大了空气和液体的接触面积，提高了过滤效果。
The invention discloses an air filtration device, which belongs to the technical field of air treatment equipment. It includes a vehicle body. Several purification devices and a purification box are fixed on the vehicle body. Electrostatic plates are provided on both sides of the interior of the purification device. An air inlet is provided on the top of the purification device. An air intake fan is installed at the bottom of the air outlet; an exhaust fan is installed inside the bottom of the purification device. The outlet of the exhaust fan is connected to the air outlet pipe, and the air outlet pipe extends into the purification box, which contains purification liquid. This device has a simple structure, and the secondary filtration structure has better filtration effect. Adding water to the purification box can meet the needs of regular use and realize the humidification function during the filtration process. Adding NaOH solution to the purification box can remove a variety of pollutants and is suitable for indoor pollution. In severe cases, the spray design increases the contact area between air and liquid and improves the filtration effect.
Description
技术领域Technical field
本发明属于空气治理设备技术领域，具体涉及一种空气过滤装置。The invention belongs to the technical field of air treatment equipment, and specifically relates to an air filtering device.
背景技术Background technique
室内空气中除了灰尘还有一定的污染物，例如SO2、NO2、HCL、HF、NH3等，这些污染物用普通的过滤方法无法去除。In addition to dust, there are certain pollutants in indoor air, such as SO 2 , NO 2 , HCL, HF, NH 3 , etc. These pollutants cannot be removed by ordinary filtration methods.
传统的空气过滤设备主要通过滤芯等结构实现过滤，滤芯为耗材，更换成本较高，而且滤芯的阻力大，影响空气过滤的速度，不适合大面积场所使用。另外采用净化液作为空气过滤方法的设备一般直接把空气通入到净化液中进行反应过滤，此方法中空气和净化液的接触面积较小，过滤效果有很大的提升空间。Traditional air filtration equipment mainly achieves filtration through structures such as filter elements. The filter element is a consumable material and the replacement cost is high. The resistance of the filter element is large, which affects the speed of air filtration, and is not suitable for use in large areas. In addition, equipment that uses purification liquid as the air filtration method generally directly passes the air into the purification liquid for reaction filtration. In this method, the contact area between the air and the purification liquid is small, and the filtration effect has a lot of room for improvement.
现有的空气净化设备功能一般单一，具备加湿功能的也是直接叠加一个加湿器模块，没有在过滤同时加湿的处理。Existing air purification equipment generally has a single function. Those with humidification function are directly superposed with a humidifier module, without the processing of filtering and humidifying at the same time.
发明内容Contents of the invention
本发明目的之一是在污染较轻的室内实现过滤的同时加入加湿功能；本发明目的之二是在污染较重的室内实现二级过滤。One of the purposes of the present invention is to realize filtration in a lightly polluted room while adding a humidification function; the second purpose of the present invention is to realize secondary filtration in a heavily polluted room.
针对背景技术提出的问题，本发明提出一种空气过滤装置，技术方案如下：In view of the problems raised by the background technology, the present invention proposes an air filter device. The technical solution is as follows:
一种空气过滤装置，包括车体，其中，车体上固定有若干净化装置，净化箱，所述净化装置内部两侧设置有静电板，净化装置顶部设置进风口，进风口底部设置进气扇；净化装置底部内侧设置排气扇，排气扇出口连通出气管，出气管伸入到净化箱中，净化箱中装有净化液，净化液为水或者氢氧化钠溶液，净化箱顶部设置防溅网，所述出气管在净化箱中分为若干连通的喷雾管，每个喷雾管和一个吸管连通，所述吸管底端插入净化液底部，吸管顶端嵌入到喷雾管中，吸管顶端成斜面且迎气流方向高，背气流方向低，所述净化液为水，过滤同时实现自然加湿；所述净化液为氢氧化钠溶液，实现物理化学两级过滤。An air filtration device includes a vehicle body, wherein a number of purification devices and purification boxes are fixed on the vehicle body. Electrostatic plates are provided on both sides of the interior of the purification device. An air inlet is provided at the top of the purification device, and an air intake fan is provided at the bottom of the air inlet. ; An exhaust fan is set inside the bottom of the purification device. The outlet of the exhaust fan is connected to the air outlet pipe. The air outlet pipe extends into the purification box. The purification box is filled with purification liquid. The purification liquid is water or sodium hydroxide solution. The top of the purification box is equipped with an anti-static device. Splash net, the air outlet pipe is divided into several connected spray pipes in the purification box, each spray pipe is connected to a suction pipe, the bottom end of the suction pipe is inserted into the bottom of the purification liquid, the top end of the suction pipe is embedded in the spray pipe, and the top end of the suction pipe is inclined The direction of the upstream air flow is high and the direction of the back air flow is low. The purification liquid is water, and natural humidification is achieved during filtration; the purification liquid is sodium hydroxide solution, achieving two-stage physical and chemical filtration.
进一步的，净化装置底部外侧设置排污口。Furthermore, a sewage outlet is provided outside the bottom of the purification device.
进一步的，防溅网为双层结构，靠近液面的底层孔隙大于顶层孔隙，底层和顶层之间设有间隙。Furthermore, the anti-splash net has a double-layer structure. The pores in the bottom layer close to the liquid surface are larger than the pores in the top layer. There is a gap between the bottom layer and the top layer.
进一步的，间隙中加有过滤包。Furthermore, a filter package is added in the gap.
进一步的，净化箱内，防溅网底部设置有斜面。Further, in the purification box, a slope is provided at the bottom of the anti-splash net.
进一步的，净化箱内部通路中设置除雾器。Further, a mist eliminator is provided in the internal passage of the purification box.
进一步的，净化箱底部外侧设置排液口。Further, a drain port is provided on the outside of the bottom of the purification box.
与现有技术相比，本发明的有益效果是：本装置结构简单，二级过滤结构使本装置的过滤效果更好，净化箱中加入水可以满足常规使用，在过滤过程中实现加湿功能。净化箱中加入NaOH溶液可清除多种污染物，适用于室内污染严重的情况，同时喷雾设计加大了空气和液体的接触面积，提高了过滤效果，独特的防溅设计有效的防治气雾溢出。Compared with the existing technology, the beneficial effects of the present invention are: the device has a simple structure, and the secondary filtration structure makes the filtration effect of the device better. Adding water to the purification box can meet the routine use, and the humidification function is realized during the filtration process. Adding NaOH solution to the purification box can remove a variety of pollutants and is suitable for severe indoor pollution. At the same time, the spray design increases the contact area between air and liquid, improving the filtration effect. The unique anti-splash design effectively prevents aerosol overflow. .
附图说明Description of the drawings
图1是本发明整体结构示意图；Figure 1 is a schematic diagram of the overall structure of the present invention;
图2是本发明实施例1净化箱内部结构示意图；Figure 2 is a schematic diagram of the internal structure of the purification box in Embodiment 1 of the present invention;
图3是本发明防溅网结构示意图；Figure 3 is a schematic structural diagram of the anti-splash net of the present invention;
图4是本发明实施例2净化箱内部结构示意图；Figure 4 is a schematic diagram of the internal structure of the purification box in Embodiment 2 of the present invention;
图中：1-车体、2-净化装置、3-进风口、4-进气扇、5-出气管、6-净化箱、7-排污口、8-排气扇、9-静电板、10-喷雾管、11-吸管、12-防溅网、13-斜面、14-排液口、15-过滤包、16除雾器。In the picture: 1-car body, 2-purification device, 3-air inlet, 4-intake fan, 5-exhaust pipe, 6-purification box, 7-sewage outlet, 8-exhaust fan, 9-static plate, 10-spray pipe, 11-suction pipe, 12-splash screen, 13-slope, 14-drain port, 15-filter bag, 16 demister.
具体实施方式Detailed ways
下面结合附图做进一步说明。The following is further explained in conjunction with the accompanying drawings.
实施例1，使用条件，当室内空气质量较好且需要加湿的时候，过滤的同时进行加湿操作，一种空气过滤装置，车体上对称固定有两个净化装置2，车体中间设置净化箱6，净化装置内部两侧设置有静电板9，净化装置顶部设置进风口3，进风口底部设置进气扇4；净化装置底部内侧设置排气扇8，排气扇出口连通出气管5，出气管伸入到净化箱中，净化箱中装有水，净化箱顶部设置防溅网12，防溅网为双层结构，靠近液面的底层孔隙大于顶层孔隙，底层和顶层之间设有间隙。出气管在净化箱中分为若干连通的喷雾管10，每个喷雾管和一个吸管11连通，所述吸管底端插入净化液底部，吸管顶端嵌入到喷雾管10中，吸管顶端成斜面，迎气流方向高，背气流方向低。Embodiment 1, use conditions, when the indoor air quality is good and humidification is needed, humidification operation is performed while filtering, an air filter device, two purification devices 2 are symmetrically fixed on the car body, and a purification box is set in the middle of the car body 6. There are electrostatic plates 9 on both sides of the interior of the purification device. An air inlet 3 is provided on the top of the purification device, and an air inlet fan 4 is provided on the bottom of the air inlet. An exhaust fan 8 is provided on the inside of the bottom of the purification device. The outlet of the exhaust fan is connected to the air outlet pipe 5. The air pipe extends into the purification box, and the purification box is filled with water. An anti-splash net 12 is set on the top of the purification box. The anti-splash net 12 has a double-layer structure. The pores of the bottom layer close to the liquid surface are larger than the pores of the top layer. There is a gap between the bottom layer and the top layer. . The air outlet pipe is divided into several connected spray pipes 10 in the purification box. Each spray pipe is connected to a suction pipe 11. The bottom end of the suction pipe is inserted into the bottom of the purification liquid, and the top end of the suction pipe is embedded in the spray pipe 10. The top end of the suction pipe is inclined to meet the spray pipe 10. The airflow direction is high and the back airflow direction is low.
接通电源，打开装置，静电过滤为成熟的现有技术，空气由进风口吸入，经过净化装置内部，灰尘等颗粒被吸附到静电板上，过滤后的气体由出气管排出，通入到净化箱中。由于吸管顶端嵌入到喷雾管中，迎气流方向高，背气流方向低形成负压，依据伯努利原理，水被吸上来和空气夹杂在一起形成气雾，一方面增加了水和空气的接触面积，进一步提升了灰尘的吸附，使过滤效果更好，另一方面，给空气加湿，使排出的空气含水量增加，过滤同时起到自然加湿的效果。Turn on the power and turn on the device. Electrostatic filtration is a mature existing technology. Air is sucked in from the air inlet. After passing through the inside of the purification device, dust and other particles are adsorbed to the electrostatic plate. The filtered gas is discharged from the outlet pipe and passed into the purification device. in the box. Since the top of the straw is embedded in the spray tube, the upward airflow direction is high and the back airflow direction is low, forming a negative pressure. According to Bernoulli's principle, water is sucked up and mixed with air to form aerosol. On the one hand, the contact between water and air is increased. The area further improves the adsorption of dust and makes the filtration effect better. On the other hand, it humidifies the air to increase the moisture content of the discharged air. The filtration also has a natural humidification effect.
净化装置底部外侧设置排污口，当需要对静电板清理的时候，打开进气口用工具刮掉静电板上灰尘，从排污口排出。There is a sewage outlet on the outside of the bottom of the purification device. When it is necessary to clean the electrostatic plate, open the air inlet and use a tool to scrape off the dust on the electrostatic plate and discharge it from the sewage outlet.
净化箱内，防溅网底部设置有斜面，有助于凝聚的水滴流回净化箱。In the purification box, the bottom of the anti-splash net is equipped with a slope to help the condensed water droplets flow back to the purification box.
净化箱底部外侧设置排液口，换水时可以打开排液口进行排水，打开防溅网进行加水。There is a drain port on the outside of the bottom of the purification box. When changing water, you can open the drain port for drainage and open the anti-splash net to add water.
实施例2，使用条件，当室内空气污染较严重，净化箱中加入氢氧化钠溶液，净化箱内部通路中设置除雾器，除雾器为常用器件，属于现有技术通过多个紧密排列的波形板实现除雾；同时防溅网为双层结构，靠近液面的底层孔隙大于顶层孔隙，底层和顶层之间设有间隙，间隙中加有过滤包，过滤包中可以是和氢氧化钠溶液反应的固体粉末，例如碳酸氢钠粉末，碳酸氢钠和氢氧化钠反应生成碳酸钠和水，用于吸附极少量的氢氧化钠水雾，防止溢出污染。其他描述同实施例1。Embodiment 2, using conditions, when indoor air pollution is serious, sodium hydroxide solution is added to the purification box, and a demister is set in the internal passage of the purification box. The demister is a commonly used device and belongs to the existing technology through multiple closely arranged devices. The corrugated plate realizes defogging; at the same time, the anti-splash net has a double-layer structure. The pores of the bottom layer close to the liquid surface are larger than the pores of the top layer. There is a gap between the bottom layer and the top layer. A filter bag is added in the gap. The filter bag can contain sodium hydroxide and sodium hydroxide. Solid powder for solution reaction, such as sodium bicarbonate powder, sodium bicarbonate and sodium hydroxide react to produce sodium carbonate and water, which are used to absorb a very small amount of sodium hydroxide mist to prevent overflow pollution. Other descriptions are the same as in Embodiment 1.
使用时，接通电源，打开装置，空气由进风口吸入，经过净化装置内部，灰尘等颗粒被吸附到静电板上，过滤后的气体由出气管排出，通入到净化箱中。由于吸管顶端嵌入到喷雾管中，吸管迎气流方向高，背气流方向低形成负压，依据伯努利原理NaOH溶液被吸上来和空气夹杂在一起形成气雾，增加了NaOH和空气的接触面积，进一步提升了过滤效果，可以消除空气中的SO2、NO2、HCL、HF、NH3等有害气体，还可以消除CO2，使过滤效果更好。过滤后的气体从防溅网排出，防溅网中设置碳酸氢钠过滤包，吸附溢出的少量氢氧化钠水雾。净化箱内，防溅网底部设置有斜面，有助于凝聚的NaOH液滴流回净化箱。净化箱的整体结构，气路路径以及雾化器保证了大部分NaOH液雾凝聚回流，极少溢出部分由过滤包吸附，避免溢出污染。When in use, turn on the power and open the device. Air is sucked in through the air inlet. After passing through the interior of the purification device, dust and other particles are adsorbed to the electrostatic plate. The filtered gas is discharged from the air outlet pipe and passed into the purification box. Since the top of the straw is embedded in the spray tube, the straw is high in the direction of the air flow and low in the direction of the back air flow, forming a negative pressure. According to Bernoulli's principle, the NaOH solution is sucked up and mixed with the air to form an aerosol, which increases the contact area between NaOH and air. , further improves the filtration effect, can eliminate SO 2 , NO 2 , HCL, HF, NH 3 and other harmful gases in the air, and can also eliminate CO 2 to make the filtration effect better. The filtered gas is discharged from the anti-splash net, and a sodium bicarbonate filter bag is installed in the anti-splash net to absorb a small amount of sodium hydroxide mist that overflows. In the purification box, the bottom of the anti-splash net is equipped with a slope to help the condensed NaOH droplets flow back to the purification box. The overall structure of the purification box, the air path and the atomizer ensure that most of the NaOH liquid mist condenses and returns, and the very little overflow is absorbed by the filter bag to avoid overflow contamination.
此外，应当理解，虽然本说明书按照实施方式加以描述，但并非每个实施方式仅包含一个独立的技术方案，本领域技术人员应当将说明书作为一个整体，各实施例中的技术方案也可以经适当组合，形成本领域技术人员可以理解的其他实施方式。In addition, it should be understood that although this specification is described in terms of implementations, not each implementation only contains an independent technical solution. Those skilled in the art should take the description as a whole, and the technical solutions in each embodiment can also be appropriately modified. Combinations form other embodiments that can be understood by those skilled in the art.
Claims (7)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310785575.8A CN116659083B (en) | 2023-06-29 | 2023-06-29 | An air filter device |
| PCT/CN2023/104481 WO2024017015A1 (en) | 2023-06-29 | 2023-06-30 | Air filtering device |
| ZA2023/07824A ZA202307824B (en) | 2018-11-15 | 2023-08-10 | Air filtration device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310785575.8A CN116659083B (en) | 2023-06-29 | 2023-06-29 | An air filter device |
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| CN116659083A CN116659083A (en) | 2023-08-29 |
| CN116659083B true CN116659083B (en) | 2024-02-13 |
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| WO (1) | WO2024017015A1 (en) |
Citations (6)
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| JPH08141348A (en) * | 1994-11-25 | 1996-06-04 | Yoji Nagano | Air purification device |
| CN205619463U (en) * | 2016-04-20 | 2016-10-05 | 徐丹丹 | Efficient air purification device |
| CN207786317U (en) * | 2017-11-27 | 2018-08-31 | 马永金 | A kind of Jenner's moral box type air purifyer |
| CN109224751A (en) * | 2018-11-27 | 2019-01-18 | 黄冬艳 | A kind of air purification humidifier |
| CN213049859U (en) * | 2020-05-09 | 2021-04-27 | 苏州川森恒祺生态科技有限公司 | Comprehensive treatment device for coating waste gas |
| CN217341814U (en) * | 2022-05-24 | 2022-09-02 | 南召县源达矿产开发有限公司 | Air dust purification device for mineral engineering |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103900155B (en) * | 2012-12-26 | 2017-06-16 | 广州市拓丰电器有限公司 | Water ion air purifier |
| CN210951821U (en) * | 2019-10-31 | 2020-07-07 | 重庆舒清节能环保科技有限公司 | Indoor air pollution treatment device |
| CN111659237A (en) * | 2020-06-16 | 2020-09-15 | 王波 | Energy-saving environment-friendly integrated flue gas purification and dust removal device and method thereof |
| CN214437602U (en) * | 2020-11-26 | 2021-10-22 | 刘县兵 | Dust treatment purifies environment-friendly device |
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2023
- 2023-06-29 CN CN202310785575.8A patent/CN116659083B/en active Active
- 2023-06-30 WO PCT/CN2023/104481 patent/WO2024017015A1/en unknown
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08141348A (en) * | 1994-11-25 | 1996-06-04 | Yoji Nagano | Air purification device |
| CN205619463U (en) * | 2016-04-20 | 2016-10-05 | 徐丹丹 | Efficient air purification device |
| CN207786317U (en) * | 2017-11-27 | 2018-08-31 | 马永金 | A kind of Jenner's moral box type air purifyer |
| CN109224751A (en) * | 2018-11-27 | 2019-01-18 | 黄冬艳 | A kind of air purification humidifier |
| CN213049859U (en) * | 2020-05-09 | 2021-04-27 | 苏州川森恒祺生态科技有限公司 | Comprehensive treatment device for coating waste gas |
| CN217341814U (en) * | 2022-05-24 | 2022-09-02 | 南召县源达矿产开发有限公司 | Air dust purification device for mineral engineering |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2024017015A1 (en) | 2024-01-25 |
| CN116659083A (en) | 2023-08-29 |
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