CN219861601U - 一种电解槽 - Google Patents
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Abstract
本实用新型公开了一种电解槽,包括有槽体(1)以及设于所述槽体(1)内的隔膜组件(2),所述的隔膜组件(2)将所述槽体(1)的内腔分隔为至少两个电极室(11),每个电极室(11)内设有电极片(3),其特征在于:所述隔膜组件(2)上具有用于连通相邻两个电极室(11)的开口(20),所述的电解槽还包括有用于打开和关闭所述开口(20)的阀板(4)。与现有技术相比,本实用新型的电解槽方便除垢,并能够切换有隔膜模式和无隔膜模式。
Description
技术领域
本实用新型涉及电解设备技术领域,具体指一种电解槽。
背景技术
电解槽由槽体、阳极和阴极组成,多数用离子交换膜(也称隔膜)将阳极室和阴极室隔开。按电解液的不同分为水溶液电解槽、熔融盐电解槽和非水溶液电解槽三类。当直流电通过电解槽时,在阳极与溶液界面处发生氧化反应,在阴极与溶液界面处发生还原反应,以制取电解水。
如专利申请号为CN201810264395.4(公布号为CN108609693A)的中国发明专利《一种酸性水和碱性水的制备方法》以电解食盐水形成阳离子和阴离子,分别向电解电极两极运动,从阳极产生氢离子和活性很强的氯气,氯气溶于水生成次氯酸和盐酸溶液作为酸性水,从阴极产生氢氧根离子和氢气,形成氢氧化钠溶液作为碱性水。
水垢沉积一直是电解槽的一个难题,其会降低电解槽使用效率,影响电解槽寿命,增加成本。一般来说,产生碱性组分(如NaOH)的电解槽更容易结垢。传统的除垢方式包括使用纯净水或蒸馏水、前置软水模块(软水树脂)、倒极或添加人力或复杂机械结构刮垢等。此类方式成本较高且复杂度较高。
实用新型内容
本实用新型所要解决的第一个技术问题是针对现有技术的现状,提供一种方便除垢的电解槽。
本实用新型所要解决的第二个技术问题是提供一种能够切换有隔膜模式和无隔膜模式的电解槽。
本实用新型解决上述第一和第二个技术问题所采用的技术方案为:一种电解槽,包括有槽体以及设于所述槽体内的隔膜组件,所述的隔膜组件将所述槽体的内腔分隔为至少两个电极室,每个电极室内设有电极片,其特征在于:所述隔膜组件上具有用于连通相邻两个电极室的开口,所述的电解槽还包括有用于打开和关闭所述开口的阀板。
为了方便实现阀板对开口的打开和关闭,所述的阀板转动连接在所述的槽体,且阀板的旋转轴线位于阀板的中间位置处;
在所述开口关闭的状态下,所述阀板两侧的侧缘与所述开口两侧的侧缘相抵,用以封堵所述的开口;
在所述开口打开的状态下,所述阀板与所述开口两侧的侧缘之间形成有间隙,用以解除对所述开口的封堵。
由于阀板的旋转轴线位于阀板的中间位置处,可以对相邻两个电极室均匀扰流。
为了实现阀板的自动转动,所述阀板的端部通过转轴转动连接在所述的槽体上,所述的槽体外安装有驱动件,该驱动件的动力输出端与所述的转轴传动连接,用以驱动该转轴绕自身轴线转动。
为了对隔膜本体进行支撑,同时避免隔膜本体接触电极片引起干烧,所述的隔膜组件包括有两片并排布置的支撑格栅以及夹设在两片支撑格栅之间的隔膜本体,该支撑格栅和隔膜本体上具有相对应的缺口以形成所述的开口。
为了方便支撑格栅的安装,所述槽体的内壁上开设有供所述支撑格栅的边沿插入的插槽。
为了避免相连两个电极室内的流体通过支撑格栅和插槽内壁之间的缝隙流通,各所述支撑格栅边沿与所述插槽内壁的相对侧之间夹设有环形密封垫。
为了实现单隔膜电解槽的形成,所述隔膜组件的数量为一组,并将所述槽体的内腔分隔为两个电极室,两个电极室分别记为阴极室和阳极室,所述电极片的数量为一对,分别记为阴极片和阳极片,所述的阴极片设于所述的阴极室内,所述的阳极片设于所述的阳极室内。
为了方便原料的供应以及电解水的排出,每个所述电极室所对应的槽体部位设有与该电极室相贯通的进液口和出液口。
与现有技术相比,本实用新型的优点在于:通过在隔膜组件上设置用于连通相邻两个电极室的开口,通过阀板来打开和关闭上述开口,能够实现有隔膜模式和无隔膜模式的切换,方便进行无隔膜电解,另外,通过打开阀板,电解过程中产生的酸性组分可分散到两电极室,实现槽体、隔膜组件、电极片上水垢的溶解去除。
附图说明
图1为本实用新型电解槽的实施例的立体结构示意图(开口处于关闭状态);
图2为图1中电解槽的立体分解示意图;
图3为图1中电解槽的纵向剖视图;
图4为图1中电解槽的横向剖视图;
图5为图4中开口切换至打开状态之后的横向剖视图。
具体实施方式
以下结合附图实施例对本实用新型作进一步详细描述。
如图1至图5所示,为本实用新型电解槽的一个优选实施例。该电解槽包括有槽体1、隔膜组件2、电极片3、阀板4和驱动件5。本实施例中的电解槽为单隔膜电解槽,当然也可以根据需要设计成双隔膜电解槽。
其中,槽体1的内部中空,槽体1的内壁上开设有与槽体1的内腔相贯通的插槽10。
隔膜组件2的数量为一组,竖直布置在上述槽体1的内腔中,并将槽体1的内腔分隔为两个电极室11,位于隔膜组件2左侧的电极室11记为阴极室11a,位于隔膜组件2右侧的电极室11记为阳极室11b,每个电极室11所对应的槽体1部位的下部和上部分别设有与该电极室11相贯通的进液口111和出液口112,因此,各电极室11内的水流自下而上流动。
本实施例中,隔膜组件2包括有支撑格栅21、隔膜本体22和环形密封垫23。具体地,支撑格栅21的数量为两片,且并排布置,支撑格栅21的边沿插设在上述插槽10内;隔膜本体22为阳离子交换膜,夹设在两片支撑格栅21之间,支撑格栅21和隔膜本体22上具有相对应的缺口以形成用于连通上述阴极室11a和阳极室11b的开口20;环形密封垫23的数量为两片,与上述支撑格栅21一一对应,各环形密封垫23夹设在对应支撑格栅21边沿与插槽10内壁的相对侧之间。
上述支撑格栅21具有以下作用:第一,对隔膜本体22进行支撑;第二,支撑格栅21分隔在隔膜本体22和相邻的电极片3之间,可有效避免隔膜本体22接触电极片3引起干烧。
电极片3的数量为一对,分别记为阴极片3a和阳极片3b,上述阴极片3a基本竖直布置在阴极室11a的左部,上述阳极片3b基本竖直布置在阳极室11b的右部。各电极片3的顶部具有导电柱31,该导电柱31向上穿过槽体1并外露于槽体1的顶壁,阴极片3a和阳极片3b上的导电柱31分别用于与外接电源的负极和正极电连接。
阀板4位于隔膜组件2的开口20处,该阀板4的顶端具有竖直布置的转轴40,该转轴40转动连接在槽体1上。本实施例中,转轴40凸设在阀板4的中间位置处,也就是说,阀板4的旋转轴线位于阀板4的中间位置处。
驱动件5为电机,安装在槽体1的顶部,该驱动件5的动力输出轴同轴连接在上述转轴40的顶端,用以驱动该转轴40绕自身轴线转动,从而带动阀板4转动打开或关闭上述开口20。
在开口20关闭的状态下,如图4所示,阀板4两侧的侧缘与开口20两侧的侧缘相抵,用以封堵开口20;
在开口20打开的状态下,如图5所示,阀板4与开口20两侧的侧缘之间形成有间隙,用以解除对开口20的封堵,且阀板4能在一定范围内往复转动。
本实施例的工作原理如下:
(1)有隔膜电解槽模式:
①当需要制备电解水时,如图4所示,通过驱动件5驱动阀板4关闭开口20,工作时,电解液通过进液口111进入电极室11,阴极片3a与溶液界面处发生还原反应,阳极片3b与溶液界面处发生氧化反应,阳离子在电场作用下,通过隔膜本体22进入阴极室11a和阴极室11a内溶液放电后留下的氢氧根离子组成碱,以制取电解水;
②当需要除垢时,如图5所示,通过驱动件5驱动阀板4打开开口20,阳极室11a和阴极室11b连通,电解过程中产生的酸性组分(如HCl/HClO等)分散到两电极室11,实现槽体1、隔膜组件2、电极片3上水垢的溶解去除;
在除垢过程中,可通过驱动件5驱动阀板4在一定范围内往复转动,阀板4运动形成动态扰流,提升除垢效率;
(2)无隔膜电解槽模式:
当需要制备电解水时,如图5所示,通过驱动件5驱动阀板4打开开口20,工作时,电解液通过进液口111进入电极室11,阴极片3a与溶液界面处发生还原反应,阳极片3b与溶液界面处发生氧化反应,以制取电解水;
在电解过程中,可通过驱动件5驱动阀板4在一定范围内往复转动,阀板4运动形成动态扰流,可抑制水垢沉积、加速排气、加速离子传递。
Claims (8)
1.一种电解槽,包括有槽体(1)以及设于所述槽体(1)内的隔膜组件(2),所述的隔膜组件(2)将所述槽体(1)的内腔分隔为至少两个电极室(11),每个电极室(11)内设有电极片(3),其特征在于:所述隔膜组件(2)上具有用于连通相邻两个电极室(11)的开口(20),所述的电解槽还包括有用于打开和关闭所述开口(20)的阀板(4)。
2.根据权利要求1所述的电解槽,其特征在于:所述的阀板(4)转动连接在所述的槽体(1),且阀板(4)的旋转轴线位于阀板(4)的中间位置处;
在所述开口(20)关闭的状态下,所述阀板(4)两侧的侧缘与所述开口(20)两侧的侧缘相抵,用以封堵所述的开口(20);
在所述开口(20)打开的状态下,所述阀板(4)与所述开口(20)两侧的侧缘之间形成有间隙,用以解除对所述开口(20)的封堵。
3.根据权利要求2所述的电解槽,其特征在于:所述阀板(4)的端部通过转轴(40)转动连接在所述的槽体(1)上,所述的槽体(1)外安装有驱动件(5),该驱动件(5)的动力输出端与所述的转轴(40)传动连接,用以驱动该转轴(40)绕自身轴线转动。
4.根据权利要求1至3中任一权利要求所述的电解槽,其特征在于:所述的隔膜组件(2)包括有两片并排布置的支撑格栅(21)以及夹设在两片支撑格栅(21)之间的隔膜本体(22),该支撑格栅(21)和隔膜本体(22)上具有相对应的缺口以形成所述的开口(20)。
5.根据权利要求4所述的电解槽,其特征在于:所述槽体(1)的内壁上开设有供所述支撑格栅(21)的边沿插入的插槽(10)。
6.根据权利要求5所述的电解槽,其特征在于:各所述支撑格栅(21)边沿与所述插槽(10)内壁的相对侧之间夹设有环形密封垫(23)。
7.根据权利要求1至3中任一权利要求所述的电解槽,其特征在于:所述隔膜组件(2)的数量为一组,并将所述槽体(1)的内腔分隔为两个电极室(11),两个电极室(11)分别记为阴极室(11a)和阳极室(11b),所述电极片(3)的数量为一对,分别记为阴极片(3a)和阳极片(3b),所述的阴极片(3a)设于所述的阴极室(11a)内,所述的阳极片(3b)设于所述的阳极室(11b)内。
8.根据权利要求1至3中任一权利要求所述的电解槽,其特征在于:每个所述电极室(11)所对应的槽体(1)部位设有与该电极室(11)相贯通的进液口(111)和出液口(112)。
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