CN107207253B - 一种用于产生过氧化氢的方法和装置 - Google Patents
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Abstract
一种用于产生过氧化氢的方法和装置,其工作原理是输送空气‑液体流或蒸汽流穿过空气中的电晕放电区。这种装置可被用于消毒空气以及消毒用于工业和家庭使用的各种物件。
Description
技术领域
本发明涉及用于产生过氧化氢的方法和装置,其工作原理是输送空气-液体流或蒸汽流穿过电晕放电区。
背景技术
CN 1011569515公开了一种非平衡等离子体式喷雾杀菌消毒剂产生装置,该装置由主单元和等离子体喷头组成。在等离子体喷头中的金属电极之间的高电压电位差被利用,以在金属电极之间的距离最小的地方形成电晕放电。电晕放电由空气-水混合物驱动,该空气-水混合物通过雾化喷嘴产生,以便沿着电极表面向下游快速滑动,并在电极表面形成脉冲式滑动电弧放电非平衡等离子体。含有过氧化氢、臭氧、氢氧自由基、氧自由基和其它可氧化粒子的空气-水混合物从绝缘壳体中产生并喷出,以形成空气-水喷雾杀菌消毒剂。
还已知利用空气压缩机产生空气-液体喷雾,该空气压缩机以高速(50-100米/秒)将空气输送穿过电晕放电区。
被输送穿过电晕放电区的流体含有过氧化氢(H2O2)和臭氧(O3),过氧化氢和臭氧被传送至正在被消毒的物体。这种方法的缺点在于,部分臭氧溶解在液体中,而其余部分存在于气流中。
同样已知的是这样的方法,其中空气-液体喷雾再次通过空气压缩机产生并被输送穿过电晕放电区,但此后该空气-液体喷雾被分离成液态过氧化氢和空气,该空气含有在液体中未溶解的臭氧。
为了除去臭氧,空气可被输送穿过活性炭过滤器。
现有技术的共同的缺点在于其受局限的应用领域,该受局限的应用领域源于空气压缩机的需求。
发明内容
因此,本发明的目的是提供用于产生过氧化氢的方法和装置,该方法和装置克服了现有技术的缺点。
为实现该目的,首先通过产生用作空气-液体流的冷蒸汽,并通过使用公知的方法在水中产生超声,从而避免使用昂贵的压缩机。
不同于通过与喷射技术有关的空气压缩机来产生空气-液体流,冷蒸汽的产生能够涉及“云技术”,因为当蒸汽“云”在常压下保持不动时,云蒸汽在常压下产生,除非用外部源产生压降。风机通常被用作这种源。
所提出的方法基于空心转子的使用,该空心转子同时具有三种功能:
1. 作为其中一个电极运作,该电极用于产生电晕放电区;
2. 产生放电区,该放电区用于将冷蒸汽转移至电晕放电区内;
3. 作为液体和空气分离器运作,该分离器使用由转子旋转产生的离心力。
该转子或该转子的至少一部分由导电材料制成。
涂覆有绝缘物的其他电极堆积在转子空腔的内部。
来自高压交流电源的功率通过电容耦合施加至来自其中一个端子的转子,同时第二端子直接连接至第二电极。以这种方式,电晕放电的直线段在该转子和该第二电极绝缘体之间产生。
转子的内直径和第二电极绝缘体的外直径之间的距离是考虑到所需要的电晕放电电流而决定的,该电晕放电电流在预设大小的高交流电压下产生。
成形为离心风机转子的转子在第二电极周围旋转。电晕放电区也旋转。
如前所述,该冷蒸汽被吸入电晕放电区中并在电晕放电区内旋转。
转子和电晕放电区的旋转速度远高于冷蒸汽的旋转速度,因为电晕放电对蒸汽有强烈的影响。这受到电晕放电的强烈影响。
利用由转子产生的离心力将蒸汽分离成液体和空气,通过使穿过电极之间电晕放电的直线段的冷蒸汽传输方向改变90°来实现。上述角度可根据电极配置稍微变化。
所提出的产生H2O2方法的优点之一在于,当在发生器出口以液体形式产生的过氧化氢被用于产生进入发生器的蒸汽时,H2O2浓度增加。为此,发生器出口连接至液体的储存器,该液体将被转化为蒸汽。
实际上,由于发生器运行时间的成比例增加,该浓度增加。
根据本发明用于产生过氧化氢(H2O2)的装置包括:
圆柱形主体、旁路空气通道、空气电容器的定片和动片、电动机、绝缘体和高交流电压源,该圆柱形主体带有冷蒸汽入口以及空气出口和H2O2出口,该电动机带有空气电容器的动片及转子,该动片固定至电动机的轴,该转子与电动机和主体一起形成离心风机,该绝缘体带有电极,该电极安装在转子空腔的内部。
附图说明
为了理解本发明并了解本发明在实践中如何实施,现在将仅通过非限制性的示例并参考附图来描述实施例,其中:
图1是根据本发明用于产生过氧化氢的装置的示意图;
图2是通过图1中A-A线的局部剖面图。
具体实施方式
参照图1,其示出了用于产生过氧化氢的装置,该装置包括壳体1,朝壳体1的上端安装有电动机2,电动机2具有电源端子3和轴4。空气电容器由环形定片5和动片6组成,定片5被支撑朝向壳体的上端,动片6(构成第一电极)与空心转子9一起被附接至电动机轴4。朝壳体的上端还提供空气出口7。在绝缘体10中包含构成第二电极的电极11,绝缘体10固定地安装在空心转子9的内部。冷蒸汽入口12和H2O2出口13形成在壳体1的下部中。空气出口7通过旁路通道8连接至冷蒸汽入口12。由输入端子15供给的高压交流电源14具有连接至第一电极和第二电极11的输出,该第一电极由空气电容器的定片5构成。该装置按如下方式工作。当功率被施加至电动机2的端子3时,电动机轴4与空气电容器的动片6和转子9一起旋转,动片6和转子9均被固定至电动机轴4。当功率施加至高交流电压源14的端子15时,该空气电容器的定片5和第二电极11被通电。以这种方式,所述高压交流通过空气电容器施加至转子9和被封装在绝缘体10内的第二电极11。
阻挡电晕放电区如图2中的C所示,该阻挡电晕放电区在绝缘体10和转子9之间产生,并与转子9一起相对于被固定的绝缘体10旋转。同时,设置在转子9和绝缘体10之间的低压区吸入从蒸汽入口12进入电晕放电区C的冷蒸汽。穿过电晕放电区的蒸汽转变成过氧化氢(H2O2),并使其在该电晕放电区中的初始流动方向改变90°。
同样参照图2看出,电晕放电区C 形成在环形空间内,该环形空间在转子9的内径D1和包围第二电极11的绝缘体10的外径D2之间。D1与D2之间的距离是考虑到所需要的电晕放电电流而决定的,该电晕放电电流在预设大小的高交流电压下产生。
由于离心力在转子9旋转的过程中产生,构成蒸汽的大量液体分子被排斥至壳体1的圆柱体内壁,形成H2O2的液滴,该液滴沿内壁向下流动并通过H2O2出口13从装置中去除,H2O2出口13位于壳体1的下部。
以上描述的液体分离过程的结果是,含有一定量的蒸汽状H2O2及不溶于液体的臭氧O3的空气保留在装置中。含有上述组分的空气从装置中逸出是不期望的。因此,离开空气出口7的空气通过旁通通道8输送至冷蒸汽入口12,冷蒸汽入口12允许蒸汽注入至装置10中。
通过这种方式,循环使用的空气在装置的内部的封闭空间内循环,从而避免活性炭过滤器的需求并简化该装置的设计和维护。
利用所提出的方法所构造的装置的原型具有以下规格:
Claims (14)
1.用于产生过氧化氢的装置,该装置包括:
壳体(1),所述壳体(1)具有入口(12)和分开的出口(13、7),该入口(12)用于供应空气-液体或蒸汽,该分开的出口(13、7)用于H2O2和空气的流出;
第一电极和第二电极(6、11),所述第一电极和第二电极(6、11)被设置以允许空气-液体流或蒸汽流;
高交流电压源(14),所述高交流电压源(14)连接至第一电极和第二电极,并被配置以在电极之间产生具有直线段的电晕放电区;
其中,第一电极和第二电极中的一个改变在电晕放电区的直线段内空气-液体流或蒸汽流的方向;
其特征在于:
改变空气-液体流或蒸汽流的方向的第一电极(6)耦合至空心转子(9),
第二电极(11)被绝缘体(10)包围并设置在空心转子的空腔内,以及H2O2出口(13)位于壳体(1)的下部。
2.根据权利要求1所述的装置,其中转子的至少部分由导电材料制成。
3.根据权利要求2所述的装置,其中高交流电压源(14)通过电容耦合(5、6)被连接至转子(9)。
4.根据权利要求1至3任一项所述的装置,其中该转子(9)被配置以相对于第二电极(11)旋转。
5.根据权利要求1至3任一项所述的装置,其中转子(9)的内径(D1)以预定的间隙从绝缘体的外径(D2)偏离,该间隙的长度是经过选择的,以便在预设大小的高交流电压下获得所需要的电晕放电电流。
6.根据权利要求1所述的装置,其中空气出口和空气-液体流入入口或蒸汽流入入口通过旁路通道连接。
7.利用根据权利要求1至6任一项所述的装置产生过氧化氢(H2O2)的方法,该方法包括:
输送空气-液体流或蒸汽流穿过具有直线段的电晕放电区(C),该电晕放电区通过在第一电极和第二电极(6、11)之间施加高交流电压(14)而产生,其中:
流动方向的角度在其经过电晕放电区的直线段的过程中被改变。
8.根据权利要求7所述的方法,其中电极(11)中的一个安装在空心转子(9)内,该空心转子(9)旋转形成离心力。
9.根据权利要求8所述的方法,其中转子(9)的至少部分由导电材料制成。
10.根据权利要求7所述的方法,其中高交流电压通过电容耦合(5、6)连接至转子(9)。
11.根据权利要求7所述的方法,其中第二电极(11)被绝缘体(10)包围并设置在空心转子的空腔内部。
12.根据权利要求11所述的方法,其中转子(9)相对于第二电极(11)旋转。
13.根据权利要求7所述的方法,其中空心转子的内径(D1)以预定的间隙从第二电极的绝缘涂层的外径(D2)偏离,该间隙的长度是经过选择的,以便在预设大小的高交流电压下获得所需要的电晕放电电流。
14.根据权利要求7所述的方法,其中为了增加H2O2的浓度,液态过氧化氢再循环至少一次,以产生穿过电晕放电区的空气-液体流或蒸汽流。
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