CN1643293A - 流量限制器 - Google Patents

流量限制器 Download PDF

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CN1643293A
CN1643293A CNA038066645A CN03806664A CN1643293A CN 1643293 A CN1643293 A CN 1643293A CN A038066645 A CNA038066645 A CN A038066645A CN 03806664 A CN03806664 A CN 03806664A CN 1643293 A CN1643293 A CN 1643293A
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flow
catheter
housing
fluid flow
limiter
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CN100335835C (zh
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斯蒂芬·奥利弗
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Diversey Inc
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/10Means for stopping flow from or in pipes or hoses
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/06Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
    • F16K3/08Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres
    • F16K3/085Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres the axis of supply passage and the axis of discharge passage being coaxial and parallel to the axis of rotation of the plates
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03CDOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
    • E03C1/00Domestic plumbing installations for fresh water or waste water; Sinks
    • E03C1/02Plumbing installations for fresh water
    • E03C1/08Jet regulators or jet guides, e.g. anti-splash devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16KVALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F16K3/04Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members
    • F16K3/06Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages
    • F16K3/08Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor with pivoted closure members in the form of closure plates arranged between supply and discharge passages with circular plates rotatable around their centres

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Multiple-Way Valves (AREA)
  • Paper (AREA)
  • Fluid-Driven Valves (AREA)
  • Pipe Accessories (AREA)
  • Sliding Valves (AREA)
  • Accessories For Mixers (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Devices For Dispensing Beverages (AREA)
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Abstract

在喷射器或其它的稀释或分装装置的补给线中的液体流量限制器具有带对置的表面和在表面之间提供不同的流量限制的许多孔洞(8d)的可转动地安装的圆盘(8)和一对对着表面密封地接合的流动导管(5、5′),借此在构件(8)的转动之时把区域是有选择地带到与导管(5、5′)连通,以便提供预期的流量限制。

Description

流量限制器
本发明的技术领域
这项发明涉及液体流量调节领域,例如,在诸如喷射器之类化学稀释装置的补给线中的液体的流量调节。
本发明的现有技术
诸如用于清洁的那些化学品是作为浓缩液体购买的,然后为了得到适合使用的正确浓度用水稀释,这在许多行业(例如旅馆和餐饮业)中是共同的实践。为了实现预期的浓缩溶液稀释和分装混合稀释溶液,按比例分装器械已被设计出来。
这些分装机通常使用被称为喷射器的文氏管类型的装置,把浓缩溶液抽吸到水流中,例如,见WO 94/04857。在这些喷射器中,流过管道的水在管道中受限制的流动通道变宽的点带走浓缩溶液。
为了保证溶液以预期的浓度被分装,调节流量的方法是必需的,为的是控制被吸入水流的浓缩溶液的数量。这在现有的喷射器中已借助在浓缩溶液供应管线中有小孔或计量孔的元件得以实现。这种流量调节方法有几个缺点,主要是由于在喷射器中难以改变待稀释液体的流量这一事实。这是因为难以拆除和用适合不同流量的流量限制元件取代带流量限制通道的元件。这部分地涉及拆开*喷射器,这是一项繁重的任务而且可能导致被稀释的溶液泄漏,甚至可能使操作员暴露在有潜在危险的溶液之下。
因此,为了改变流量而被拆除的元件是可能容易被损坏的而且可能被不正确地重新安装到喷射器中,这依次导致其它的问题。
US-A-2001/0015231描述一种有一摞可转动的盘片的流量限制器,其中每个盘片都有在一个表面上的弯曲的通道和适合与下一个盘片连通的孔。盘片的调整决定流动路径的长度和流量。
本发明的概述
本发明的目的是创造一种液体流量限制器,它允许操作员以简单的方式和在对操作员的安全风险最小的情况下轻松快速地选择多种不同的流量限制之一与预期的流量(例如,稀释)相对应。
依照本发明,提供一种液体流量限制器,它有安装后可转动的构件,该构件有对置的表面和许多在表面之间提供不同的流量限制区域的孔,以及分别对着表面密封地接合的一对流动导管,借此在构件转动之时把这些区域有选择地带到与所述的导管连通,以提供预期的流量限制。
依照本发明的深层方面,提供用来稀释第一液体的喷射器,该喷射器包括上述的流量限制器。
优选的是液体流量限制器包括将构件可转动地安装在其中并且将所述的流动导管安装在其上的壳体。流动导管之一或两者优选可释放地可附着到壳体上,凭借这种附着使流动导管与构件密封地接合。作为替代,导管可能与壳体和提供流动管线连接的可拆卸的连接是一个整体。
壳体优选有用来容纳构件的空腔。至少可转动的构件和壳体之一优选是可弹性变形的,以便允许将构件***并保持在其可转动地安装的位置。
每个流动导管优选以用于与构件密封接合的弹性密封件为终点。
可转动的构件的一部分优选从壳体中突出,使该构件变成对于操作员是易于接近的,以致他能用手转动该构件。可转动的构件通常是圆盘,它有在转动轴周围的圆周上被隔开的流量限制区域。每个区域可能是一个或多个孔。
优选至少流动导管之一是与构件可释放地接合的,以便将它与构件夹紧。这种安排可能是这样的,以致夹紧动作妨碍或阻止构件的转动。
导管之一或两者可以轴向调整它在壳体中相对于可转动的构件的每个表面的位置,以改变密封压力和/或破坏与可转动的构件的密封接触。因此,一个或两个导管可以是可缩回的,以便减少夹紧压力,到允许圆盘转动。这样的调节能力可以借助导管对壳体的卡口型或螺纹型连接得以实现。
附图简要说明
现在将参照附图作为例子描述本发明的实施方案。
图1是体现本发明的有附着的流动导管的液体流量限制器的透视图;
图2是图1的装置的流动导管的透视图,其中导管的末端是可见的;
图3是图1的液体流量限制器和流动导管的分解透视图。
优选实施方案的描述
图1到3展示以壳体1的形式体现本发明的液体流量限制器,其中壳体连接器4的孔口4a位于壳体的两边(只有一个看得见)。一对一模一样的流动导管5、5′各自的末端7当壳体1和流动导管5被组装起来的时候穿过孔口4a。每个流动导管5、5′都有提供流动路径7b并且有用来在所提供的诸如喷射器之类的装置的补给管线中连接流量限制器的整体管接头6、6′的中心轴向管。在中心管周围是整体成形的套筒部分5a。两个孔口4a的轴线是彼此对准的,而且孔口4a从壳体1外面,穿过壳壁延伸到壳体1内部的空腔2。
壳体的空腔2具有实质上扁平的形状和通向壳体一侧的孔口,如同能在图1和2中看到的那样。空腔2是为了接纳可转动地安装的流量限制构件8并允许它转动而定尺寸的。
可转动的构件8采取有短轴8a从每个表面突出的厚度实质上一致的通常呈盘形的板的形式。构件8有一组以在构件的对置表面之间延伸的孔8d的形式沿着圆周等间隔分布的流量限制区域。这些区域位于环绕构件8的转动轴的圆周上。作为替代,流量限制区域可以由包含不同数目的孔的群体组成,以改变横截面积和流动阻力。可转动的构件的边缘8带有识别标记(未展示),所以该标记在构件8在任何时候都从壳体1中突出出来的那个部分上是看得见的(见图1)并且提供正在使用的流量限制的直观指示,即对准流动导管5、5′的孔8d。
壳体1包括用来把可转动的构件8的两个短轴8a保持和可转动地安装在空腔2之内的两个短轴安装孔3。空腔2的壁面包括在***构件8期间短轴8a沿着它滑进壳体的导槽2a。导槽2a是倾斜的,即它们的底部随着离开空腔2的开口端的距离会聚到一点而且它们一直延伸到短轴安装孔3。壳体1是用可弹性变形的材料制成的和是为了在***构件8的时候在短轴8a对准各自的短轴安装孔3之前向变形而安排的。在这个位置,短轴8a在壳体凭借弹性恢复到它最初的形状之时进入孔3,借此把安装后可转动的构件8锁定在它的正常操作位置,如同在图1中举例说明的那样。这个突发动作提供简单精确的组装。
构件8的一部分在正常操作中从空腔的边缘突出出来(如图1所示),以致成为易于能通过施加外力转动构件的操作员接近的。
除了O型密封圈之外,如果分开提供,限制器的每个零件都是整块塑胶材料模塑的。
图1展示在壳体之内处于其正常操作位置的安装后可转动的构件8。图3展示恰好在***壳体的空腔2之前的构件8。构件8使用中占据空腔2而且构件8的***区域平放在孔口4a之间的间隙中,以致液体限制8d可通过构件8的转动有选择地对准流动导管5、5′的末端7。
壳体的孔口4a的尺寸适合接纳各自的流动导管5、5′的末端7,因而使末端7能够进入与安装后可转动的构件8的各个表面密封接合的位置。导管5、5′各自的末端7带有环形弹性密封件7a,例如,作为导管5、5′的末端的一部分模塑的模塑密封件。作为替代,密封件可以呈O型密封圈的形式,保持在导管的轴向端面中的环形凹槽中或在导管外端周围的凹陷中(即,在末端直径减小的台阶中),O型密封圈超过所述的末端沿轴向突出出来。
壳体接头4通常呈套环的形式,每个都包括以一对沟槽4b、4c的形式在壳体接头4的外表面上切割出来的连接装置。沟槽4b、4c是“卡口”型连接物。沟槽包括轴向沟槽部分4b和沿圆周方向和轴向两者向壳体中的空腔延伸的倾斜沟槽部分4c。一对沟槽4b、4c是为了接纳在流动导管5、5′的套筒部分5a上相应的一对向内突出的配对的耳柄5b(图2)而安排的。沟槽4c允许相对于构件8这样调整流动导管5、5′,以致导管5、5′保持与构件8密封接合同时允许构件的转动(即,选择不同的流量限制8d)。作为卡口型连接的替代方案,可以使用螺纹连接。
每个流动导管5、5′的套筒部分5a和各自的接头4是通过先把两者推到一起然后彼此相对转动使耳柄5b与沟槽4b、4c接合并沿着这两个沟槽行进连接的。在连接期间,流动导管5、5′的末端7,更具体地说是流动导管5、5′的末端7上的密封件7a向可转动的构件8的表面移位并且与该表面接合。在实践中连接可以在***流动导管接头5a的一对沟槽5c的工具的帮助下完成。
操作员通过转动构件8用手使预期的流量限制8d对准流动导管5、5′。流动导管5、5′对各自的壳体接头4的连接使在流动导管5、5′的末端7的密封件7a与预期的流量限制区域(孔8d)周围的构件密封地接合。
套筒部分5a和壳体接头4是这样安排的,以致两者的连接使末端7的密封件7a以足以使密封件7a对构件8实施密封同时阻止构件转动的夹紧力顶在构件8上。在这里,充分的摩擦接合在密封件7a和构件8之间发生,从而将接头5a相对于壳体接头锁定在它的最终位置(即,耳柄5b在沟槽4c的末端)。
因此,一旦预期的流量限制8d已被选定而且至少一个流动导管接头已被完全***和连接,通过转动构件8改变流量限制就是不可能的或至少是非常困难的。为了改变流量限制,导管5、5′的夹紧力被充分释放,以允许转动构件8。导管5、5′不需要被完全拆除,只需要后退,在转动构件时密封件7仍然密封构件8的表面。
作为替代,密封件7a可能以足以在选定的孔8d和流动导管5、5′之间提供充分的密封的力接触构件8,无需紧紧地夹住构件8,从而使该构件可以在维持与密封件7a滑动接触的同时被转动。在这种情况下,如果需要,可以进一步提供用来阻止构件转动的方法。
举例说明的实施方案可借助接头6、6′与两个输送管连接。作为替代,壳体1被装配到在其补给线中安装液体流量限制器的装置(即,喷射器)(未展示)的本体上或与该装置的本体整体成形。例如,在这种情况下,可转动的构件本身从喷射器本体中突出,而且只有一个壳体接头4是容易从装置外面接近的。这种安排消除对第二个用来可释放地连接流动导管的壳体接头的需要,因为这个流动导管被喷射器壳体内的流动路径取代。装置内部的流动路径与可转动的构件8的表面之间的密封可以借助上述的O型密封圈的运用通过夹紧来实现。
因此,举例说明的装置提供了一种由为数不多几个实用的零件组成的流量限制器,它在允许轻松快捷地改变流量范围的同时通过允许在暴露于输送管中的液体之下的风险极小的情况下改变稀释条件提供高水平的安全性。

Claims (9)

1.一种液体流量限制器,其中包括:
安装后可转动的构件(8),它有对置的表面和在所述的表面之间提供不同的流量限制区域的许多孔(8d),
分别对着所述的表面密封地接合的一对流动导管(5、5′),借此在所述的构件(8)转动之时把所述的区域有选择地带到与所述的导管(5、5′)连通,以提供预期的流量限制。
2.根据权利要求1的液体流量限制器,进一步包括将构件(8)可转动地安装在其中并且将所述的流动导管(5、5′)安装在其上的壳体(1)。
3.根据权利要求2的液体流量限制器体,其中构件(8)的一部分从壳体(1)突出,借此能为了转动构件(8)用手施力。
4.根据权利要求2或3的液体流量限制器,其中壳体(1)有用来接纳构件(8)的空腔(2),至少构件(8)和所述的壳体(1)之一是可弹性变形的,以致允许构件(8)***和保持在其可转动地安装的位置。
5.根据上述权利要求之中任何一项的液体流量限制器,其中每个流动导管(5、5′)都以与构件(8)密封接合的弹性密封件(7a)为终点。
6.根据上述权利要求之中任何一项的液体流量限制器,其中至少流动导管(5、5′)之一是可释放地与构件(8)接合的,以便夹紧构件并因此妨碍构件的转动。
7.根据上述权利要求之中任何一项的液体流量限制器,其中至少流动导管(5、5′)之一相对于构件(8)是可调整的,以便减少密封力,借此允许构件(8)转动。
8.根据上述权利要求之中任何一项的液体流量限制器,其中至少流动导管(5、5′)之一是可释放地附着到壳体(1)上的,以致当附着到壳体上的时候,流动导管(5)与构件(8)密封地接合。
9.一种用来把第一液体稀释到更多的液体之中的喷射器,其中包括用来有选择地限制所述的第一液体的流量的根据上述的任何一项权利要求的流量限制器。
CNB038066645A 2002-03-21 2003-03-04 流量限制器 Expired - Fee Related CN100335835C (zh)

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EP02252050A EP1351008A1 (en) 2002-03-21 2002-03-21 Flow restrictor

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WO2003081116A1 (en) 2003-10-02
MXPA04009062A (es) 2005-01-25
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CA2478075A1 (en) 2003-10-02
EP1485646A1 (en) 2004-12-15
BR0308520A (pt) 2005-02-01
US20050104024A1 (en) 2005-05-19
ATE302392T1 (de) 2005-09-15
EP1351008A1 (en) 2003-10-08
CN100335835C (zh) 2007-09-05
JP2005521009A (ja) 2005-07-14
DE60301341D1 (de) 2005-09-22
DE60301341T2 (de) 2006-06-14
KR20040093169A (ko) 2004-11-04
AU2003213685A1 (en) 2003-10-08
EP1485646B1 (en) 2005-08-17

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