WO2024087246A1 - 一种圆孔针级空气电晕消毒装置 - Google Patents

一种圆孔针级空气电晕消毒装置 Download PDF

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Publication number
WO2024087246A1
WO2024087246A1 PCT/CN2022/129749 CN2022129749W WO2024087246A1 WO 2024087246 A1 WO2024087246 A1 WO 2024087246A1 CN 2022129749 W CN2022129749 W CN 2022129749W WO 2024087246 A1 WO2024087246 A1 WO 2024087246A1
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circular hole
needle
positive electrode
air
corona
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PCT/CN2022/129749
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English (en)
French (fr)
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章明
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微喂苍穹(上海)健康科技有限公司
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Publication of WO2024087246A1 publication Critical patent/WO2024087246A1/zh

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22—Ionisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/80—Self-contained air purifiers
    • 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

Definitions

  • the utility model belongs to the technical field of air disinfection, in particular to a circular hole needle-level air corona disinfection device.
  • the embodiment of the present application provides a circular hole needle-level air corona disinfection device, which removes the circular tube and directly opens a circular hole on the negative metal plate.
  • the tip of the discharge alloy needle is used to discharge in the middle of the axis of the metal circular hole to generate a corona zone, thereby performing strong oxidation disinfection on the air flowing from the top of the metal circular hole to the bottom of the metal circular hole.
  • the problem of excessive ozone and limited disinfection capacity in the existing flat-plate electrostatic technology is solved, and the problem of thick thickness of the circular tube needle-level electrostatic technology and troublesome maintenance of the circular tube is also solved.
  • a circular hole needle-level air corona disinfection device includes a three-part structure, namely: a high-voltage package for providing electric power boost, a negative metal circular hole plate and a positive bracket bar;
  • the negative plate is connected to the negative electrode of the high-voltage package through a wire, and a plurality of metal circular holes are opened inside the negative plate, and discharge alloy needles are arranged inside the metal circular holes;
  • the positive electrode support bar is connected to the positive electrode of the high-voltage package through a wire.
  • One end of the discharge alloy needle is fixedly connected to the inside of the positive electrode support bar, and the other end is located at the axial center position of the metal circular hole.
  • the voltage of the high-voltage package is controlled between 4000-8000 volts, and the current is controlled between 500 microamperes and 1 milliampere.
  • the axis of the metal circular hole overlaps with the axis of the discharge alloy needle.
  • the interior of the positive electrode support strip is in a grid shape.
  • the positive electrode support bar is provided with a plurality of insulating connection columns at intervals, and the negative electrode plate is fixedly connected to the positive electrode support bar via the insulating columns.
  • the discharge alloy needle is 1-2 mm away from the air inlet of the metal circular hole.
  • the interior of the metal circular hole is divided into an air inlet located at the top, a corona zone located in the middle, and an air outlet located at the bottom.
  • the radius of the metal circular hole is 1-1.5 cm, and the length of the discharge alloy needle is 1.2-1.5 times the radius of the circular hole.
  • the tip of the discharge alloy needle is used to discharge in the middle of the axis of the metal circular hole to generate a corona zone, so that the air flowing from the top of the metal circular hole to the bottom of the metal circular hole is strongly oxidized and disinfected by the corona field;
  • FIG1 is a schematic diagram of the overall structure of the utility model
  • FIG2 is an enlarged schematic diagram of the A portion in FIG1 of the present utility model
  • Fig. 3 is a front view of the utility model
  • FIG4 is an exploded view of the present invention.
  • FIG5 is an enlarged schematic diagram of portion B in FIG4 of the present invention.
  • FIG6 is a cross-sectional view of the negative electrode plate of the present invention.
  • the embodiment of the present application provides a circular hole needle-level air corona disinfection device, which removes the circular tube and directly opens a circular hole on the negative metal plate.
  • the tip of the discharge alloy needle is used to discharge in the middle of the axis of the metal circular hole to generate a corona zone, thereby performing strong oxidation disinfection on the air flowing from the top of the metal circular hole to the bottom of the metal circular hole.
  • the technical solution in the embodiment of the present application is to solve the problems of the above-mentioned background technology, and the overall idea is as follows:
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • This embodiment introduces a specific structure of a circular hole needle-level air corona disinfection device, as shown in Figures 1 to 6, including:
  • the voltage of the high-voltage package 2 is controlled between 4000-8000 volts, and the current is controlled between 500 microamperes and 1 milliampere, and the current is limited at 1 milliampere to ensure safety for human touch;
  • a negative electrode plate 3 is connected to the negative electrode of the high-voltage package 2 through a wire, and a plurality of metal circular holes 4 are provided inside the negative electrode plate 3, and a discharge alloy needle 1 is provided inside the metal circular hole 4;
  • the discharge at the tip of the discharge alloy needle 1 can form a large number of free radicals and positive ions, which have a strong oxidative disinfection effect on the air passing through the metal circular hole 4;
  • the positive electrode support bar 5 is connected to the positive electrode of the high-voltage package 2 through a wire, one end of the discharge alloy needle 1 is fixedly connected to the inside of the positive electrode support bar 5, and the other end is located at the axial position of the metal circular hole 4;
  • the discharge alloy needle 1 cooperates with the metal circular hole 4 opened inside the negative plate 3 to form a closed area.
  • a high-speed rotating corona zone 9 is formed in the middle of the metal circular hole 4, which effectively increases the disinfection path of viruses and bacteria and improves the disinfection efficiency.
  • the axis of the metal circular hole 4 overlaps with the axis of the discharge alloy needle 1, so that the position of the discharge alloy needle 1 is located at the axial position corresponding to the metal circular hole 4, ensuring uniform discharge at the needle tip, limiting the generation of ozone, and cooperating with the metal circular hole 4 to form an effective corona zone 9 in the middle of the metal circular hole 4.
  • the positive electrode support bar 5 is provided with a plurality of insulating connecting columns 6 at intervals, the negative electrode plate 3 and the positive electrode support bar 5 are kept parallel, and the negative electrode plate 3 and the positive electrode support bar 5 are connected by using insulating connecting columns 6, so that the interval between the negative electrode plate 3 and the positive electrode support bar 5 is kept above 10 mm, thereby achieving air insulation;
  • the above design utilizes the tip of the discharge alloy needle 1 to discharge in the middle of the axis of the metal circular hole 4, thereby generating a corona zone 9, which can achieve air disinfection in a human environment.
  • the tip of the discharge alloy needle 1 and high-voltage ionization technology are utilized to form a high-speed rotating corona zone 9 in the ionization area of the metal circular hole 4, thereby performing strong oxidation disinfection on the air flowing from the top of the metal circular hole 4 to the bottom of the metal circular hole 4.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • this example introduces the specific structure of the circular hole needle-level air corona disinfection device, which is composed of a high-voltage package 2, a positive electrode support bar 5, a metal circular hole 4 opened inside the positive electrode support bar 5, a discharge alloy needle 1 located at the center of the metal circular hole 4, and an insulating connecting column 6, wherein the top of the metal circular hole 4 is an air inlet 7, and the bottom of the metal circular hole 4 is an air outlet 8, and air flows from the inside of the metal circular hole 4 toward the positive electrode support bar 5;
  • the positive electrode of the high-voltage package 2 is connected to the positive electrode support bar 5 through a wire, and one end of the discharge alloy needle 1 is fixed on the positive electrode support bar 5, and the discharge alloy needle 1 is vertically upward so that the axis of the discharge alloy needle 1 overlaps with the axis of the metal circular hole 4, so that the other end of the discharge alloy needle 1 is 1-2mm away from the air outlet in the metal circular hole 4, and the negative electrode of the high-voltage package 2 is connected to the negative electrode plate 3 through a wire, and a plurality of insulating connecting columns 6 are installed between the negative electrode plate 3 and the positive electrode support bar 5, so that the negative electrode plate 3 and the positive electrode support bar 5 remain parallel, and ensure that the interval is more than 10mm, so as to achieve air insulation;
  • the user's operation steps are:
  • the tip of the discharge alloy needle 1 discharges to form a large number of free radicals and positive ions, which strongly oxidize and disinfect the air, and form a high-speed rotating corona zone 9 inside the metal circular hole 4;
  • the above design utilizes the high-voltage package 2 to release current from the tip of the discharge alloy needle 1, thereby forming a large number of free radicals and positive ions.
  • the free radicals and positive ions perform strong oxidation disinfection on the viruses flowing through the metal circular hole 4, a large number of positive and negative ions will condense on the particulate matter, effectively reducing PM2.5 in the air.
  • the corona zone formed by the tip of the alloy needle 1 in the metal circular hole 4 can be used to efficiently disinfect the air.
  • the adsorption part of the traditional circular tube is removed, and the precious physical space is compressed.
  • the ultra-thin structure of 1.5-2 cm can be achieved, which is convenient for directly replacing the traditional filter screen and also reduces the maintenance work of the circular tube.

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  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Electrostatic Separation (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

一种圆孔针级空气电晕消毒装置，涉及空气消毒技术领域，包括高压包(2)、负极板(3)和正极支架条(5)，正极支架条(5)间隔设置有多个绝缘连接柱(6)，负极板(3)上有多个金属圆孔(4)，金属圆孔(4)的内部分为位于顶部的进风口(7)，位于中部的电晕区(9)以及位于底部的出风口(8)，放电合金针(1)的一端固定式连接在正极支架条(5)的内部，另一端位于金属圆孔(4)的轴心位置，并低于进风口(7)，高于出风口(8)；通过利用放电合金针(1)的尖端在金属圆孔(4)轴线处的中部放电生成电晕区(9)，从而对从金属圆孔(4)顶部向金属圆孔(4)底部流动的空气进行强氧化消毒工作，提高了空气消毒的能力，同时借助放电合金针(1)的尖端放出的自由基和正离子，使大量的正负离子会凝并在颗粒物上，有效减少空气中的PM2.5。

Description

一种圆孔针级空气电晕消毒装置 技术领域
本实用新型属于空气消毒技术领域，具体是一种圆孔针级空气电晕消毒装置。
 背景技术
新冠后，经空气传播的流行病病毒成为了大家的关注焦点，而绝大多数经空气传播的流行病的传染源是感染病毒的病人，传播方式是有人的时候通过人和人之间进行传播，所以在有人环境实现空气消毒尤为重要。
现有的平板静电技术主要依靠吸附实现除尘和净化，有一种利用圆管针级的a静电技术有效的解决了臭氧超标的问题，并利用针尖产生的电晕场实现空气消毒，同时管壁吸附经过电晕区后带电的颗粒物。但本申请实用新型人在实现本申请实施例中的技术方案的过程中，发现上述技术至少存在如下技术问题：
传统平板静电技术臭氧超标，且消毒能力有限，而圆管针级技术尽管解决了臭氧超标问题，且产生电晕场增强了消毒能力，但是管壁吸附除尘的能力有限，还限制了整体设备厚度，使其一般都大于2.5厘米，而传统过滤滤网一般在1.5-2.4厘米之间，所以无法直接替代传统过滤网（缺少安装空间）。
 有益效果
为了克服现有的不足, 本申请实施例提供一种圆孔针级空气电晕消毒装置，通过去除圆管，在负极金属板上直接开圆孔，利用放电合金针的尖端在金属圆孔轴线处的中部放电生成电晕区，从而对从金属圆孔顶部向金属圆孔底部流动的空气进行强氧化消毒工作，解决了现有平板静电技术臭氧超标，且消毒能力有限的问题，也解决了圆管针级静电技术厚度较厚，且圆管维护麻烦的问题。
本申请实施例解决其技术问题所采用的技术方案是：
一种圆孔针级空气电晕消毒装置，包括三部分的结构，分别为：用于提供电力升压的高压包、负极金属圆孔板和正极支架条；
负极板通过导线与高压包负极进行连接，所述负极板的内部开设有多个金属圆孔，所述金属圆孔的内部设置有放电合金针；
正极支架条通过导线与高压包正极进行连接，所述放电合金针的一端固定式连接在正极支架条的内部，另一端位于金属圆孔的轴心位置。
在一种可能的实现方式中，所述高压包的电压控制4000-8000伏之间，电流控制在500微安到1毫安之间。
在一种可能的实现方式中，所述金属圆孔的轴线与放电合金针的轴线相重叠。
在一种可能的实现方式中，所述正极支架条的内部呈网格状。
在一种可能的实现方式中，所述正极支架条间隔设置有多个绝缘连接柱，所述负极板通过绝缘柱与正极支架条固定式连接。
在一种可能的实现方式中，所述放电合金针离金属圆孔的进风口距离为1-2毫米。
在一种可能的实现方式中，所述金属圆孔的内部分成位于顶部的进风口，位于中部的电晕区以及位于底部的出风口。
在一种可能的实现方式中，所述金属圆孔的半径为1-1.5厘米，放电合金针的长度为圆孔半径的1.2-1.5倍。
本申请的有益效果为：
一是，本方案中，通过利用放电合金针的尖端在金属圆孔轴线处的中部放电生成电晕区，从而利用电晕场对由金属圆孔顶部向金属圆孔底部流动的空气进行强氧化消毒工作；
二是，本方案中，通过利用放电合金针的尖端放出的自由基和正离子，使大量的正负离子会凝并在颗粒物上，有效减少空气中的PM2.5，去除了传统圆管吸附部分，压缩了宝贵的物理空间，便于直接替代传统过滤滤网，且减少了后期维护圆管的难度。
 附图说明
图1为本实用新型的整体结构示意图；
图2为本实用新型图1中A部的放大示意图；
图3为本实用新型的主视图；
图4为本实用新型的爆炸图；
图5为本实用新型图4中B部的放大示意图；
图6为本实用新型负极板的剖视图。
附图说明：1、放电合金针；2、高压包；3、负极板；4、金属圆孔；5、正极支架条；6、绝缘连接柱；7、进风口；8、出风口；9、电晕区。
 本发明的最佳实施方式
本申请实施例通过提供一种圆孔针级空气电晕消毒装置，通过去除圆管，在负极金属板上直接开圆孔，利用放电合金针的尖端在金属圆孔轴线处的中部放电生成电晕区，从而对从金属圆孔顶部向金属圆孔底部流动的空气进行强氧化消毒工作。
本申请实施例中的技术方案为解决上述背景技术的问题，总体思路如下：
实施例1：
本实施例介绍了一种圆孔针级空气电晕消毒装置的具体结构，具体参照图1-图6所示，包括：
用于提供电力电压的高压包2；
其中，为了保证人体安全，将高压包2的电压控制在4000-8000伏之间，并将其电流控制在500微安到1毫安之间，同时在1毫安实现限流，确保对人体触碰的安全；
负极板3，其通过导线与高压包2负极进行连接，负极板3的内部开设有多个金属圆孔4，金属圆孔4的内部设置有放电合金针1；
其中，放电合金针1的尖端放电，可以形成大量的自由基和正离子，对经过金属圆孔4内部的空气形成强氧化消毒作用；
正极支架条5，其通过导线与高压包2正极进行连接，放电合金针1的一端固定式连接在正极支架条5的内部，另一端位于金属圆孔4的轴心位置；
其中，放电合金针1与开设在负极板3内部的金属圆孔4孔组成封闭的区域配合，在放电合金针1尖端放电时，在金属圆孔4的中部形成高速旋转的电晕区9，有效加大了病毒、细菌的消毒路径，提升消毒效率。
在一些示例中，金属圆孔4的轴线与放电合金针1的轴线相重叠，使放电合金针1的位置位于金属圆孔4对应的轴心位置，确保针尖的均匀放电，限制臭氧的产生，并和金属圆孔4配合在金属圆孔4的中部形成有效的电晕区9。
在一些示例中，正极支架条5间隔设置有多个绝缘连接柱6，负极板3和正极支架条5保持平行，并在负极板3和正极支架条5之间使用绝缘连接柱6进行连接，使负极板3和正极支架条5之间的间隔保持在10mm以上，从而实现空气绝缘；
通过采用上述技术方案：
上述设计通过利用放电合金针1的尖端在金属圆孔4轴线处的中部放电，从而生成电晕区9，可以在有人环境下，实现空气的消毒工作，利用放电合金针1的尖端并采用高压电离技术，在金属圆孔4内电离区域处形成高速旋转的电晕区9，从而对由金属圆孔4顶部向金属圆孔4底部流动的空气进行强氧化消毒工作。
实施例2：
以实施例1为基础，本实施例介绍了圆孔针级空气电晕消毒装置的具体结构，本实施例由高压包2、正极支架条5、开设在正极支架条5内部的金属圆孔4、位于金属圆孔4内部中心的放电合金针1以及绝缘连接柱6组成，其中金属圆孔4的顶部为进风口7，金属圆孔4的底部为出风口8，空气从金属圆孔4内部朝向正极支架条5的方向流动；
其中，高压包2的正极和正极支架条5通过导线相连，而放电合金针1的一端固定在正极支架条5上，并式放电合金针1竖直向上使放电合金针1的轴线与金属圆孔4的轴线重叠，使放电合金针1的另一端离金属圆孔4内的出风口1-2mm，高压包2的负极和负极板3通过导线相连，并在负极板3和正极支架条5之间安装多个绝缘连接柱6，使负极板3和正极支架条5保持平行，并保证间隔10mm以上，实现空气绝缘；
在具体的使用过程中过程中；
使用者的操作步骤为：
S1、利用电压在4000-8000伏之间，电流500微安到1毫安之间的高压包2通过导线将电流经正极支架条5向放电合金针1的内部输入；
S2、放电合金针1的尖端放电形成大量的自由基和正离子，对空气进行强氧化消毒，并在金属圆孔4的内部形成高速旋转的电晕区9；
S3、位于金属圆孔4内部的放电合金针1的尖端释放的正离子和自由基，对流经金属圆孔4的病毒进行强氧化消毒，同时大量的正负离子会凝并在颗粒物上，有效减少空气中的PM2.5。
通过采用上述技术方案：
上述设计通过利用高压包2将电流从放电合金针1的尖端放出，从而形成形成大量的自由基和正离子，当自由基和正离子对流经金属圆孔4的病毒进行强氧化消毒时，大量的正负离子会凝并在颗粒物上，有效减少空气中的PM2.5，可以在抑制臭氧发生的基础上，利用合金针1的尖端在金属圆孔4内形成的电晕区进行空气的高效消毒工作，去除了传统圆管吸附部分，压缩了宝贵的物理空间，可实现1.5-2厘米的超薄结构，便于直接替代传统过滤滤网，也减少了圆管的维护工作。
最后应说明的是：显然，上述实施例仅仅是为清楚地说明本实用新型所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引申出的显而易见的变化或变动仍处于本实用新型的保护范围之中。

Claims (8)

  1. 一种圆孔针级空气电晕消毒装置，其特征在于，包括：
    用于提供电力电压的高压包（2）；
    负极板（3），其通过导线与高压包（2）负极进行连接，所述负极板（3）上开设有多个金属圆孔（4），所述金属圆孔（4）的内部设置有放电合金针（1）；以及
    正极支架条（5），其通过导线与高压包（2）正极进行连接，所述放电合金针（1）的一端固定式连接在正极支架条（5）的内部。
  2. 如权利要求1所述的一种圆孔针级空气电晕消毒装置，其特征在于：所述高压包（2）的电压控制4000-8000伏之间，电流控制在500微安到1毫安之间。
  3. 如权利要求1所述的一种圆孔针级空气电晕消毒装置，其特征在于：所述金属圆孔（4）的轴线与放电合金针（1）的轴线相重叠。
  4. 如权利要求1所述的一种圆孔针级空气电晕消毒装置，其特征在于：所述正极支架条（5）的内部呈网格状。
  5. 如权利要求1所述的一种圆孔针级空气电晕消毒装置，其特征在于：所述正极支架条（5）间隔设置有多个绝缘连接柱（6），所述负极板（3）通过绝缘连接柱（6）与正极支架条（5）固定式连接。
  6. 如权利要求1所述的一种圆孔针级空气电晕消毒装置，其特征在于：所述放电合金针（1）针尖离负极板（3）的进风口距离为1-2毫米。
  7. 如权利要求1所述的一种圆孔针级空气电晕消毒装置，其特征在于：所述金属圆孔（4）的内部分成位于顶部的进风口（7），位于中部的电晕区（9）以及位于底部的出风口（8）。
  8. 如权利要求1所述的一种圆孔针级空气电晕消毒装置，其特征在于：所述金属圆孔（4）的半径为1-1.5厘米，放电合金针（1）的长度为圆孔半径的1.2-1.5倍。
PCT/CN2022/129749 2022-10-25 2022-11-04 一种圆孔针级空气电晕消毒装置 WO2024087246A1 (zh)

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