CN111594633A - 能由泵驱动的三通阀 - Google Patents
能由泵驱动的三通阀 Download PDFInfo
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- 239000012530 fluid Substances 0.000 claims abstract description 19
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
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Abstract
一种能由泵(7)驱动的三通阀(8),该三通阀可在至少两个切换位置之间切换,在该至少两个切换位置中,第一端口(2)选择性地与第二端口(3)或与第三端口(4)流体连通。三通阀包括可移动支撑件(84)和由可移动支撑件承载的一对阻塞构件(83、83'),这对阻塞构件中的至少一个响应于由泵(7)在第一端口(2)处施加的压力,阻塞构件和可移动支撑件中的至少一个可由于循环泵(7)的关闭状态与打开状态之间的转变而运动。阻塞构件(83、83')适于往复地接合三通阀(8)的相应阀座(82a、82b)。当泵(7)从关闭状态切换到打开状态时,阻塞构件能够同步地改变形状。
Description
技术领域
本发明总体上涉及液压系统,该液压系统布置为在设备的不同回路之间分配流体流,特别是在用于加热和产生家用热水的设备中。
背景技术
已知的是,在上述设备中,机动三通阀用于选择性地将水通过不同的液压回路引导到各种热交换器。
最近已经提出了新的解决方案,其提供了非机动三通阀的使用,该三通阀根据循环泵产生的压力而在不同位置之间切换。
发明内容
本发明的目的是提供一种三通阀,该三通阀在没有电机的情况下操作,因此不需要电力来进行其操作,而是仅通过流体流的液压能来操作,这是简单且可靠的。
根据本发明,此目的和其他目的通过一种可由泵驱动的三通阀实现,所述三通阀包括第一端口、第二端口和第三端口;其中,所述三通阀可在至少两个切换位置之间切换,在该至少两个切换位置中,第一端口选择性地与第二端口或与第三端口流体连通;其中,所述三通阀包括可移动支撑件和由所述可移动支撑件承载的一对阻塞构件,这对阻塞构件中的至少一个响应于由泵在第一端口处施加的压力,阻塞构件和所述可移动支撑件中的至少一个可由于循环泵的关闭状态与打开状态之间的转变而移动;其中,阻塞构件适于往复地接合三通阀的相应阀座,该阀座分别插置在第一端口与第二端口之间以及第一端口与第三端口之间,其中,当泵从关闭状态切换到打开状态时,所述阻塞构件能够同步地改变形状。
根据本发明,因此可利用简单且可靠的液压系统将水引导到加热系统的不同回路中,该液压系统在没有电机的情况下操作,因此不需要电力来进行其操作,而仅通过水流的液压能来操作。
通过这种系统,阀的成本和阀的电气/电子控制部件的成本进一步降低。还改进了液压性能,并且避免了水击。
特别地,所述阻塞构件可以这样的方式布置在可移动支撑件上,即,具有面向可移动支撑件的相反运动方向中的一个方向或另一个方向的凹度,当泵从关闭状态切换到打开状态时,所述阻塞构件改变凹度的取向。所述凹度的变化实现了阻塞构件的形状的变化。
在此情况中,当阻塞构件中的一个接合在三通阀的相应阀座上时,所述阻塞构件能够在泵从关闭状态切换到打开状态时由于压力而改变凹度的取向,并且能够抵抗弹性力的作用而朝向所述阀座驱动所述可移动支撑件,并且其中,阻塞构件中的另一个通过接合在与所述阀座不同的控制构件上而改变凹度的取向。
根据一个实施方式,三通阀还包括与可移动支撑件相关联的返回装置,该返回装置产生弹性力以将可移动支撑件朝向三通阀的阀座之间的中间位置偏压,其中,此中间位置与循环泵的关闭状态相关联。
特别地,当阻塞构件中的一个接合在三通阀的相应阀座上时,所述可移动支撑件可在泵从关闭状态切换到打开状态时由于压力抵抗所述弹性力的作用而朝向所述阀座移动。
此外,当泵从打开状态切换到关闭状态时,所述可移动支撑件能够由于所述弹性力而驱动阻塞构件,从而使所述阻塞构件中的一个移动远离相应阀座,并且使所述阻塞构件中的另一个抵靠三通阀的相应阀座。
根据一个具体实施方式,可移动支撑件布置为可在三通阀的相对阀座之间滑动,并且阻塞构件均制成为围绕可移动支撑件布置的柔性锥形环。
在此情况中,当阻塞构件中的一个接合在三通阀的所述相对阀座中的一个上时,所述阻塞构件能够在循环泵从关闭状态切换到打开状态时由于压力而翻转,并且能够抵抗所述弹性力的作用而朝向所述阀座驱动所述可移动支撑件。
附图说明
通过以下参考附图以非限制性实例的方式提供的详细描述,本发明的其他特征和优点将变得显而易见,其中:
图1至图4是在不同操作位置的根据本发明的配备有三通阀的用于加热和产生家用热水的设备的示意图;
图5至图9是三通阀在不同操作位置的剖视图;
图10是三通阀的剖视图;
图11是图10的阀的部件的透视图;
图12是图10的阀的剖视图;以及
图13是沿着图12的线cc截取的阀的剖视图。
具体实施方式
附图中的图1至图4示意性地示出了一种用于加热和产生家用热水的设备,其中使用了根据本发明的三通阀。然而,三通阀并不限于此类型的使用。
该设备包括用于加热水流以在液压加热回路中使用的初级热交换器21,该液压加热回路包括(例如)在初级热交换器21的出口侧和入口侧之间延伸的管道22,并且沿着该管道插入有一个或多个散热器24。通常,初级热交换器21可例如以完全常规的方式与气体、木材或颗粒燃烧器、热泵或太阳能电池相关联。该设备还包括次级热交换器25,以将来自初级热交换器21并在管道26中流动的水流的热量传递到在管道27中流动的生活用水的水流。管道27在一侧连接到水源,例如连接到供水网络,并且在另一侧连接到家用热水龙头。
该设备还包括液压串联布置的循环泵7和三通阀8。泵和阀可组装在单个主体中。
在图1中,三通阀8包括:第一端口2,在该实例中是流体出口端口,用于连接到初级热交换器21;第二端口3,在该实例中是入口端口,用于连接到加热回路22、24;以及第三端口4,在该实例中是第二入口端口,用于连接到次级热交换器25。
现在将描述三通阀8的结构和操作。
三通阀8可在至少两个位置之间切换,在该至少两个位置中,第一端口2选择性地与第二端口3或第三端口4流体连通,使得将经过初级交换器21的水引导到加热回路22、24或引导到次级交换器25以加热生活用水。
三通阀8是非机动类型的,并且响应于循环泵7在第一端口2(出口端口)处施加的压力,如将在下文中阐明的。
特别参考图5至图13,三通阀8包括阀体81,在其中形成第一端口(出口端口)2、第二端口(第一入口端口)3和第三端口(第二入口端口)4,所有这些端口都连接到形成于阀体81中的切换室。在所示实例中,阀体81包括五个组装在一起的部件,即中心部件81a、两个附接到中心部件81a的侧部件81b,以及两个分别附接到侧部件81b和81c的侧盖81d和81e。
在切换室内部具有两个阻塞构件83、83',每个阻塞构件布置为呈现柔性锥形环的形状。阻塞构件83、83'由阀体81内部的形成为滑动梭(shuttle)的可移动支撑件84承载。在所示实例中,可移动支撑件84包括中心杆84a和两个附接到中心杆84a的端部的侧支撑部件84b和84c。每个阻塞构件83、83'由中心具有孔的柔性材料(例如橡胶)的盘状物制成,由于盘状物的孔和其安装于其上的可移动支撑件84的支撑部件84b、84c的较大直径的轴之间的直径差,阻塞构件呈现图中所示的柔性锥形环的形状。可移动支撑件的平移方向由图5中的箭头x表示。每个阻塞构件83、83'安装在形成于可移动支撑件的相应部件84b、84c中的相应凹槽84d、84e中,使得阻塞构件83、83'与可移动支撑件84平移成一体。凹槽84d和84e的构造使得允许相应的阻塞构件83、83'翻转(在与可移动支撑件84接触的点处旋转),即,锥度方向相对于可移动支撑件84的平移方向x反转,如将在下文中阐明的。
如图10和图11所示,支撑部件84b、84c具有径向伸出部分84f、84g,其在轴向方向上限定凹槽84d和84e,并且与用于流体通过的窗口或凹口成角度地交替。
在相对的端部处,可移动支撑件84与形成于侧盖81d和81e上的导杆81f和81g相关联,该导杆插入形成于支撑部件84b和84c中的对应的孔。在阀体81的中心处,可移动支撑件的中心杆84由与阀体81的中心部件81a一体形成的杆支撑件81h可滑动地支撑。
在可移动支撑件84的端部与阀体81的侧盖81d和81e之间插入相应的相对的弹性装置85b和85c,该弹性装置将可移动支撑件84朝向图1、图3、图5和图8所示的中间位置或平衡位置偏压,这在将相同的压力施加在端口2、3和4中(即,循环泵7关闭)时发生。在所示实例中,弹性装置85b和85c制造成分别与导杆81f和导杆81g同轴布置的螺旋弹簧。
在切换室内部还形成第一阀座82a和第二阀座82b,其分别插入在第一端口2和第二端口3之间以及第一端口2和第三端口4之间。阀座82a和82b适于分别由第一阻塞构件83和第二阻塞构件83'往复地使用。第一端口2定向为与连接阀座82a和82b的轴线正交。
在每个侧盖81d和81e附近布置(至少)一个伸入切换室中的控制构件86d和86e,其功能将在下文中阐明。在所示实施方式中,控制构件86d和86e制造成径向地延伸到切换室中的凸起,特别是从分别与侧盖81d和侧盖81e一体形成的保持架86f、86g延伸。
在图1和图5中,三通阀8示出为处于静止位置,其中循环泵7处于关闭状态。可移动支撑件84处于中间或静止位置,其中第二阻塞构件83'接合在第二阀座82b上。因此,第一端口2与第二端口3流体连通,而第一端口2与第三端口4之间的流体连通被中断。由于循环泵7关闭,所以没有流体循环。
图6和图2及图7示出了当循环泵7打开时的下一个操作阶段。在泵启动阶段期间,紧靠在第二阀座82b上的第二阻塞构件83'由源自与第一端口2流体连通的第二端口3的流吸入(图6)。施加在第二阻塞构件83'上的吸力导致其反转以及第二阀座82b的密封闭合(图2和图7)。第二阻塞构件83'的翻转克服压缩的弹簧85b和延伸的弹簧85c的作用而朝向第二阀座82b驱动可移动支撑件84。由于可移动支撑件84的运动,使第一阻塞构件83与第一控制构件86d接合,这通过接触而引起其反转。当循环泵7打开时,具有从第二端口3到第一端口2的流体流,即加热回路22、24中的流体流。该系统还可在第二阻塞构件83'几乎与第二阀座82b接合的情况下(考虑图6所示的状态)工作,即,在可移动支撑件84处于中间位置时第二阻塞构件83'靠近第二阀座82b的情况下。打开循环泵7将在第一阶段有效地趋向于使第二阻塞构件83'靠近第二阀座82b,导致系统经过上述状态。
图3和图8示出了当循环泵7再次关闭时的第三操作阶段。停止泵中断了流体循环,因此,可移动支撑件84由于由弹簧85b和85c施加的返回力而返回到平衡位置。可移动支撑件84与其一起驱动阻塞构件83和83',导致阻塞构件83接合在第一阀座82a上并且使阻塞构件83'移动远离第二阀座82b。因此,在前一操作阶段中具有相反锥度的第一阻塞构件83中断第一端口2与第二端口3之间的流体连通,即中断加热回路22、24。相反,在第一端口2和第三端口4之间,即与次级交换器25建立流体连通。
图4和图9示出了当循环泵7再次打开时的第四操作阶段。当泵重新启动时,紧靠在第一阀座82a上的第一阻塞构件83由来自第三端口4的流吸入。施加在第一阻塞构件83上的吸力导致其反转以及第一阀座82a的密封闭合。第一阻塞构件83的翻转克服压缩的弹簧85c和延伸的弹簧85b的作用而驱动可移动支撑件84朝向第一阀座82a移动。由于可移动支撑件84的运动,使第二阻塞构件83'与第二控制构件86e接合,这通过接触而导致其反转。当循环泵7打开时,具有从第三端口4到第一端口2的流体流,即,进入次级交换器25的流体流。
如果循环泵7随后停止,则流动再次中断,因此可移动支撑件84由于由弹簧85b和85c施加的返回力而返回到平衡位置,并且利用其驱动阻塞构件83、83',使三通阀8返回到图1和图5所示的位置。
因此,上述阀以循环方式操作,往复地打开和关闭加热回路22、24和次级热交换器回路25。
循环泵的打开和关闭由设备的控制单元(未示出)根据用户的需要来控制。传感器,例如压力传感器、温度传感器或流量传感器,通常分别与加热回路22、24和次级热交换器回路26、25相关联,以检测两个回路的操作状态。通过这些传感器,设备的控制单元因此能够确定三通阀8的切换状态是否实际上对应于用户的需求,如果不是,则再次打开和关闭循环泵7以使得三通阀进一步切换。这可在短时间内并且在任何情况下与常规机动阀的切换时间一致地实现。
Claims (11)
1.一种能由泵(7)驱动的三通阀(8),所述三通阀包括第一端口(2)、第二端口(3)和第三端口(4);
其中,所述三通阀(8)能在至少两个切换位置之间切换,在所述至少两个切换位置中,所述第一端口(2)选择性地与所述第二端口(3)或与所述第三端口(4)流体连通;
其中,所述三通阀包括可移动支撑件(84)和由所述可移动支撑件承载的一对阻塞构件(83、83'),所述一对阻塞构件中的至少一个响应于由所述泵(7)在所述第一端口(2)处施加的压力,所述阻塞构件和所述可移动支撑件中的至少一个能由于所述泵(7)的关闭状态与打开状态之间的转变而移动;
其中,所述阻塞构件(83、83')适于往复地接合所述三通阀(8)的相应阀座(82a、82b),所述阀座分别插置在所述第一端口(2)与所述第二端口(3)之间以及所述第一端口(2)与所述第三端口(4)之间,
其中,所述三通阀的特征在于,当所述泵(7)从所述关闭状态切换到所述打开状态时,所述阻塞构件能够同步地改变形状。
2.根据权利要求1所述的三通阀,其中,所述阻塞构件以具有面向所述可移动支撑件(84)的相反运动方向中的一个方向或另一个方向的凹度的方式布置在所述可移动支撑件(84)上,所述阻塞构件能够在所述泵(7)从所述关闭状态切换到所述打开状态时改变所述凹度的取向。
3.根据权利要求2所述的三通阀,其中,当所述阻塞构件(83、83')中的一个阻塞构件接合在所述三通阀(8)的相应阀座(82a、82b)上时,所述阻塞构件能够在所述泵(7)从所述关闭状态切换到所述打开状态时改变所述凹度的取向,并且能够抵抗弹性力的作用而朝向所述阀座驱动所述可移动支撑件,并且其中,所述阻塞构件中的另一个阻塞构件通过接合在与所述阀座不同的控制构件(86d、86e)上而改变所述凹度的取向。
4.根据权利要求1所述的三通阀,所述三通阀还包括返回装置(85b、85c),所述返回装置与所述可移动支撑件(84)相关联并且产生弹性力以将所述可移动支撑件(84)朝向所述三通阀的所述阀座(82a、82b)之间的中间位置偏压,其中,所述中间位置与所述泵(7)的所述关闭状态相关联。
5.根据权利要求4所述的三通阀,其中,当所述阻塞构件(83、83')中的一个阻塞构件接合在所述三通阀(8)的相应阀座(82a、82b)上时,所述可移动支撑件能在所述泵(7)从所述关闭状态切换到所述打开状态时抵抗所述弹性力的作用而朝向所述阀座移动。
6.根据权利要求5所述的三通阀,其中,当所述泵(7)从所述打开状态切换到所述关闭状态时,所述可移动支撑件能够由于所述弹性力而驱动所述阻塞构件(83、83'),从而使所述阻塞构件中的一个阻塞构件移动远离相应阀座,并使所述阻塞构件中的另一个阻塞构件抵靠所述三通阀(8)的相应阀座。
7.根据权利要求6所述的三通阀,其中,所述可移动支撑件(84)能滑动地布置在所述三通阀(8)的所述阀座(82a、82b)之间,并且所述阻塞构件(83、83')均形成为围绕所述可移动支撑件(84)布置的柔性锥形环。
8.根据权利要求7所述的三通阀,其中,当所述阻塞构件(83、83')中的一个阻塞构件接合在所述三通阀(8)的相应阀座(82a、82b)上时,所述阻塞构件能够在所述泵(7)从所述关闭状态切换到所述打开状态时由于压力而翻转,并且能够抵抗所述弹性力的作用而朝向所述阀座驱动所述可移动支撑件。
9.一种液压单元,包括根据权利要求1所述的三通阀并包括泵,其中,所述三通阀(8)和所述泵(7)组装成单个主体。
10.一种用于加热和产生家用热水的设备,所述设备包括用于加热能在在加热液压回路(22、24)中使用的水流的初级热交换器(21)、用于将来自所述初级热交换器(21)的水流的热量传递到家用水流的次级热交换器(25)以及用于在所述初级热交换器(21)中产生水流的循环泵(7);
其中,所述设备还包括根据权利要求1所述的三通阀,所述第一端口连接到所述初级热交换器(21),并且所述第二端口和所述第三端口分别连接到所述加热液压回路(22、24)和所述次级热交换器(25)。
11.一种用于通过泵(7)驱动根据权利要求1所述的三通阀的方法,其中,当所述泵(7)从打开状态切换到关闭状态时,所述三通阀(8)在所述至少两个切换位置之间切换。
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- 2020-02-19 CN CN202010102974.6A patent/CN111594633A/zh active Pending
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